aprevo® anterior and lateral lumbar interbody system; aprevo® posterior and transforaminal lumbar interbody system; aprevo® cervical interbody system; corra™ cervical plating system
K260385 · Carlsmed, Inc. · MAX · May 9, 2026 · Orthopedic
Device Facts
Record ID
K260385
Device Name
aprevo® anterior and lateral lumbar interbody system; aprevo® posterior and transforaminal lumbar interbody system; aprevo® cervical interbody system; corra™ cervical plating system
Applicant
Carlsmed, Inc.
Product Code
MAX · Orthopedic
Decision Date
May 9, 2026
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3080
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
aprevo® anterior and lateral lumbar interbody system aprevo® ALIF and LLIF interbody systems The aprevo® ALIF and LLIF interbody systems are intended for interbody fusion in skeletally mature patients and are to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The aprevo® ALIF and LLIF interbody systems are indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The devices are intended to be used with autograft and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone graft. These devices may be implanted via a variety of open or minimally invasive approaches. These approaches may include anterior lumbar interbody fusion or lateral lumbar interbody fusion. The aprevo® ALIF and LLIF interbody systems are indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis or kyphosis), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six months of non-operative treatment. The aprevo® ALIF and LLIF interbody systems are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone. These devices are intended to be used with supplemental fixation systems that have been cleared for use in the thoracolumbosacral spine (e.g., posterior pedicle screw and rod systems). These devices may be implanted via a variety of open or minimally invasive approaches. aprevo® ALIF-X interbody system The aprevo® ALIF-X interbody system is intended for interbody fusion in skeletally mature patients. The aprevo® ALIF-X interbody system is indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The device is intended to be used with autograft and/or allogenic bone graft comprised of cancellous bone and/or corticocancellous bone and is to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The device may be implanted via an open or minimally invasive approach. The aprevo® ALIF-X interbody system is indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis, kyphosis, or sagittal), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. The aprevo® ALIF-X interbody system is intended for standalone use at one or two levels of the spine when used with the screws that accompany the implant and with implants less than or equal to 20° of lordosis. At more than two levels or with implants greater than 20° of lordosis, the aprevo® ALIF-X interbody system is intended to be used with the screws that accompany the implant and with supplemental fixation. When used at more than one level in patients with degenerative scoliosis and/or sagittal deformity, the aprevo® ALIF-X interbody system must be used with the screws that accompany the implant and with supplemental internal spinal fixation system (e.g., pedicle screw system) cleared by the FDA for use in the lumbar spine. These patients should be skeletally mature and have had at least six months of non-operative treatment. The device is to be filled with autograft bone and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone. The device may be implanted via an open or minimally invasive approach. aprevo® posterior and transforaminal lumbar interbody system The aprevo® posterior and transforaminal lumbar interbody system is intended for interbody fusion in skeletally mature patients and is to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The aprevo® posterior and transforaminal lumbar interbody system is indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The device is intended to be used with autograft and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone graft. The device may be implanted via an open or minimally invasive approach. The aprevo® posterior and transforaminal lumbar interbody system is indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis or kyphosis), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six months of non-operative treatment. The aprevo® posterior and transforaminal lumbar interbody system is to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. The device is intended to be used with supplemental fixation systems that have been cleared for use in the thoracolumbosacral spine (e.g., posterior pedicle screw and rod systems). The device may be implanted via an open or minimally invasive approach. aprevo® cervical interbody system aprevo® cervical ACDF interbody system The aprevo® cervical ACDF interbody system includes interbody fusion devices indicated at one or more levels of the cervical spine (C2-T1) in patients with cervical disc disease, instability, trauma including fractures, deformity defined as kyphosis, lordosis, or scoliosis, cervical spondylotic myelopathy, spinal stenosis, and failed previous fusion. Cervical disc disease is defined as discogenic pain with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six (6) weeks of non-operative treatment. The devices are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. The aprevo® cervical ACDF interbody system must be used with supplemental fixation (e.g., cervical plate or cervical posterior fixation). aprevo® cervical ACDF-X interbody system The aprevo® cervical ACDF-X interbody system includes interbody fusion devices indicated at one or more levels of the cervical spine (C2-T1) in patients with cervical disc disease, instability, trauma including fractures, deformity defined as kyphosis, lordosis, or scoliosis, cervical spondylotic myelopathy, spinal stenosis, and failed previous fusion. Cervical disc disease is defined as discogenic pain with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six (6) weeks of non-operative treatment. The devices are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. When used with the screws that accompany the device, the aprevo® cervical ACDF-X interbody system is intended for use as a standalone system. Deformity procedures to correct coronal angulation or use of a hyperlordotic device (>20° lordosis) must include supplemental fixation (e.g., cervical plate or cervical posterior fixation). corra™ cervical plating system The corra™ cervical plating system is intended for anterior cervical fixation (C2-T1) for the following indications: - Degenerative disc disease (DDD) (defined as neck pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), - Spondylolisthesis, - Trauma (i.e., fracture or dislocation), - Spinal stenosis, - Deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis), - Tumor, - Pseudoarthrosis, and - Failed previous fusion.
Device Story
Patient-specific intervertebral body fusion devices and cervical plating system; additively manufactured from titanium alloy (Ti-6Al-4V ELI). Inputs: patient radiological images used to develop individualized surgical correction plans and device configurations. Outputs: personalized implants with apertures for bone graft packing; screws for fixation. Used in OR by surgeons for spinal stabilization and fusion. Devices facilitate correction of spinal deformities and degenerative conditions. Benefits: patient-specific geometry improves fit and surgical outcomes. Instruments facilitate placement, adjustment, and removal.
Clinical Evidence
No clinical data. Substantial equivalence is based on non-clinical testing, including cleaning (ISO 17664-1, ANSI AAMI ST98) and sterilization (ISO 17665, ANSI AAMI ST79) validation for non-sterile instruments.
Technological Characteristics
Additively manufactured titanium alloy (Ti-6Al-4V ELI) per ASTM F3001 (implants) and ASTM F136 (screws). Instruments made of medical-grade stainless steel and plastics. Patient-specific design based on radiological images. Sterilization via validated methods per ISO 17665/ANSI AAMI ST79.
An intervertebral body fusion device is an implanted single or multiple component spinal device made from a variety of materials, including titanium and polymers. The device is inserted into the intervertebral body space of the cervical or lumbosacral spine, and is intended for intervertebral body fusion.
Special Controls
*Classification.* (1) Class II (special controls) for intervertebral body fusion devices that contain bone grafting material. The special control is the FDA guidance document entitled “Class II Special Controls Guidance Document: Intervertebral Body Fusion Device.” See § 888.1(e) for the availability of this guidance document.(2) Class III (premarket approval) for intervertebral body fusion devices that include any therapeutic biologic (e.g., bone morphogenic protein). Intervertebral body fusion devices that contain any therapeutic biologic require premarket approval.
(c)
*Date premarket approval application (PMA) or notice of product development protocol (PDP) is required.* Devices described in paragraph (b)(2) of this section shall have an approved PMA or a declared completed PDP in effect before being placed in commercial distribution.
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FDA U.S. FOOD & DRUG ADMINISTRATION
May 9, 2026
Carlsmed, Inc.
Stephanie Crossman
Regulatory Affairs Specialist
1800 Aston Ave. Suite 100
Carlsbad, California 92008
Re: K260385
Trade/Device Name: aprevo® anterior and lateral lumbar interbody system; aprevo® posterior and transforaminal lumbar interbody system; aprevo® cervical interbody system; corra™ cervical plating system
Regulation Number: 21 CFR 888.3080
Regulation Name: Intervertebral Body Fusion Device
Regulatory Class: Class II
Product Code: MAX, ODP, OVE, OVD, KWQ
Dated: April 10, 2026
Received: April 10, 2026
Dear Stephanie Crossman:
We have reviewed your section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (the Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K260385 - Stephanie Crossman
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Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality Management System Regulation (QMSR) (21 CFR Part 820), which includes, but is not limited to, ISO 13485 clause 7.3 (Design controls), ISO 13484 clause 8.3 (Nonconforming product), and ISO 13485 clause 8.5 (Corrective and preventative action). Please note that regardless of whether a change requires premarket review, the QMSR requires device manufacturers to review and approve changes to device design and production (ISO 13485 clause 7.3 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the Quality Management System Regulation (QMSR) (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-
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K260385 - Stephanie Crossman
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assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Brent Showalter -S
Brent Showalter, Ph.D.
Assistant Director
DHT6B: Division of Spinal Devices
OHT6: Office of Orthopedic Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
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DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
Indications for Use
Form Approved: OMB No. 0910-0120
Expiration Date: 07/31/2026
See PRA Statement below.
510(k) Number (if known)
K260385
Device Name
aprevo® anterior and lateral lumbar interbody system; aprevo® posterior and transforaminal lumbar interbody system;
aprevo® cervical interbody System; corra™ cervical plating system
Indications for Use (Describe)
aprevo® anterior and lateral lumbar interbody system
aprevo® ALIF and LLIF interbody systems
The aprevo® ALIF and LLIF interbody systems are intended for interbody fusion in skeletally mature patients and are to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The aprevo® ALIF and LLIF interbody systems are indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The devices are intended to be used with autograft and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone graft. These devices may be implanted via a variety of open or minimally invasive approaches. These approaches may include anterior lumbar interbody fusion or lateral lumbar interbody fusion.
The aprevo® ALIF and LLIF interbody systems are indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis or kyphosis), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six months of non-operative treatment. The aprevo® ALIF and LLIF interbody systems are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone. These devices are intended to be used with supplemental fixation systems that have been cleared for use in the thoracolumbosacral spine (e.g., posterior pedicle screw and rod systems). These devices may be implanted via a variety of open or minimally invasive approaches.
aprevo® ALIF-X interbody system
The aprevo® ALIF-X interbody system is intended for interbody fusion in skeletally mature patients. The aprevo® ALIF-X interbody system is indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The device is intended to be used with autograft and/or allogenic bone graft comprised of cancellous bone and/or corticocancellous bone and is to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The device may be implanted via an open or minimally invasive approach.
The aprevo® ALIF-X interbody system is indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis, kyphosis, or sagittal), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. The aprevo® ALIF-X interbody system is intended for standalone use at one or two levels of the spine when used with the screws that accompany the implant and with implants less than or equal to 20° of lordosis. At more than two levels or with implants greater than 20° of lordosis, the aprevo® ALIF-X interbody system is intended to be used with the screws that accompany the implant and with supplemental fixation. When used at more than one level in patients with degenerative scoliosis and/or sagittal deformity, the aprevo® ALIF-X interbody system must be used with the screws that accompany the implant and with supplemental internal spinal fixation system (e.g., pedicle screw system) cleared by the FDA for use in the lumbar spine. These patients should be skeletally mature and have had at least six months of non-operative treatment. The device is to be filled with autograft bone and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone. The device may be implanted via an open or minimally invasive approach.
FORM FDA 3881 (8/23)
Page 1 of 3
PSC Publishing Services (301) 443-6740
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aprevo® posterior and transforaminal lumbar interbody system
The aprevo® posterior and transforaminal lumbar interbody system is intended for interbody fusion in skeletally mature patients and is to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The aprevo® posterior and transforaminal lumbar interbody system is indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The device is intended to be used with autograft and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone graft. The device may be implanted via an open or minimally invasive approach.
The aprevo® posterior and transforaminal lumbar interbody system is indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis or kyphosis), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six months of non-operative treatment. The aprevo® posterior and transforaminal lumbar interbody system is to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. The device is intended to be used with supplemental fixation systems that have been cleared for use in the thoracolumbosacral spine (e.g., posterior pedicle screw and rod systems). The device may be implanted via an open or minimally invasive approach.
aprevo® cervical interbody system
aprevo® cervical ACDF interbody system
The aprevo® cervical ACDF interbody system includes interbody fusion devices indicated at one or more levels of the cervical spine (C2-T1) in patients with cervical disc disease, instability, trauma including fractures, deformity defined as kyphosis, lordosis, or scoliosis, cervical spondylotic myelopathy, spinal stenosis, and failed previous fusion. Cervical disc disease is defined as discogenic pain with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six (6) weeks of non-operative treatment. The devices are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. The aprevo® cervical ACDF interbody system must be used with supplemental fixation (e.g., cervical plate or cervical posterior fixation).
aprevo® cervical ACDF-X interbody system
The aprevo® cervical ACDF-X interbody system includes interbody fusion devices indicated at one or more levels of the cervical spine (C2-T1) in patients with cervical disc disease, instability, trauma including fractures, deformity defined as kyphosis, lordosis, or scoliosis, cervical spondylotic myelopathy, spinal stenosis, and failed previous fusion. Cervical disc disease is defined as discogenic pain with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six (6) weeks of non-operative treatment. The devices are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. When used with the screws that accompany the device, the aprevo® cervical ACDF-X interbody system is intended for use as a standalone system. Deformity procedures to correct coronal angulation or use of a hyperlordotic device (>20° lordosis) must include supplemental fixation (e.g., cervical plate or cervical posterior fixation).
corra™ cervical plating system
The corra™ cervical plating system is intended for anterior cervical fixation (C2-T1) for the following indications:
- Degenerative disc disease (DDD) (defined as neck pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies),
- Spondylolisthesis,
- Trauma (i.e., fracture or dislocation),
- Spinal stenosis,
- Deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
- Tumor,
- Pseudoarthrosis, and
- Failed previous fusion.
FORM FDA 3881 (8/23)
Page 2 of 3
PSC Publishing Services (301) 443-6740
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Type of Use (Select one or both, as applicable)
☑ Prescription Use (Part 21 CFR 801 Subpart D)
☐ Over-The-Counter Use (21 CFR 801 Subpart C)
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FORM FDA 3881 (8/23)
Page 3 of 3
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K260385
carlsmed
# 510(k) Summary
## Contact Details
Applicant: Carlsmed, Inc.
Address: 1800 Aston Ave Ste 100
Carlsbad, CA 92008
Phone number: (760) 766-1923
Contact person: Stephanie Crossman
Regulatory Affairs Specialist
scrossman@carlsmed.com
Date prepared: February 5, 2026
## Device Name
Trade name: aprevo® anterior and lateral lumbar interbody system
aprevo® posterior and transforaminal lumbar interbody system
aprevo® cervical interbody system
corra™ cervical plating system
Common name: Intervertebral Fusion Device with Bone Graft, Lumbar
Intervertebral Fusion Device with Integrated Fixation, Lumbar
Intervertebral Fusion Device with Bone Graft, Cervical
Intervertebral Fusion Device with Integrated Fixation, Cervical
Appliance, Fixation, Spinal Intervertebral Body
Classification name: Intervertebral Fusion Device with Bone Graft, Lumbar (21 CFR 888.3080);
Intervertebral Fusion Device with Integrated Fixation, Lumbar (21 CFR 888.3080);
Intervertebral Fusion Device with Bone Graft, Cervical (21 CFR 888.3080);
Intervertebral Fusion Device with Integrated Fixation, Cervical (21 CFR 888.3080);
Spinal Intervertebral Body Fixation Orthosis (21 CFR 888.3060)
Class: II
Product code: MAX, ODP, OVE, OVD, KWQ
## Legally Marketed Predicate/Reference Devices
| 510(k) Number | Product Code | Trade Name | Manufacturer |
| --- | --- | --- | --- |
| Primary Predicate Device | | | |
| K250827 | ODP, OVE, MAX, OVD | aprevo® anterior lumbar interbody fusion device, aprevo® lateral lumbar interbody fusion device, aprevo® anterior lumbar interbody fusion device with interfixation, aprevo® transforaminal lumbar interbody fusion device, aprevo® TLIF-CA Articulating System; aprevo® Cervical ACDF; aprevo® Cervical ACDF-X; aprevo® Cervical ACDF-X No Cam | Carlsmed, Inc. |
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K260385
carlsmed
| 510(k) Number | Product Code | Trade Name | Manufacturer |
| --- | --- | --- | --- |
| Additional Predicate Device(s) | | | |
| K250987 | MAX | aprevo® posterior/transforaminal lumbar interbody fusion device | Carlsmed, Inc |
| K252894 | ODP, OVE | aprevo® cervical interbody system | Carlsmed, Inc. |
| K252611 | KWQ | aprevo® cervical plating system | Carlsmed, Inc. |
## Device Description
### aprevo® anterior and lateral lumbar interbody system
The aprevo® anterior and lateral lumbar interbody system, which is comprised of the aprevo® ALIF interbody system, aprevo® LLIF interbody system, and aprevo® ALIF-X interbody system configurations, is designed to stabilize the lumbar spinal column and facilitate fusion. The personalized aprevo® devices incorporate patient-specific features and include an aperture intended for the packing of bone graft. The individualized surgical correction plan and device configurations are developed using patient radiological images.
The aprevo® anterior and lateral lumbar interbody system devices are additively manufactured from titanium alloy (Ti-6Al-4V ELI) per ASTM F3001, and the screws are manufactured from titanium alloy (Ti-6Al-4V ELI) per ASTM F136. The associated system instruments, which facilitate the placement, adjustment, and removal, if necessary, of the implants, are manufactured from medical-grade materials, such as stainless steels and plastics.
### aprevo® posterior and transforaminal lumbar interbody system
The aprevo® posterior and transforaminal lumbar interbody system, which is comprised of aprevo® TLIF-O and PLIF interbody system, aprevo® TLIF-C interbody system, and aprevo® TLIF-CA interbody system configurations, is designed to stabilize the lumbar spinal column and facilitate fusion. The personalized aprevo® devices incorporate patient-specific features and include an aperture for the packing of bone graft. The individualized surgical correction plan and device configurations are developed using patient radiological images.
The aprevo® posterior and transforaminal interbody system devices are additively manufactured from titanium alloy (Ti-6Al-4V ELI) per ASTM F3001. The associated system instruments, which facilitate the placement, adjustment, and removal, if necessary, of the implants, are manufactured from medical-grade materials, such as stainless steels and plastics.
### aprevo® cervical interbody system
The aprevo® cervical interbody system, which is comprised of the aprevo® cervical ACDF interbody system and the aprevo® cervical ACDF-X interbody system configurations, is designed to stabilize the cervical spinal column and facilitate fusion. The personalized aprevo® devices incorporate patient-specific features and include an aperture intended for the packing of bone graft. The individualized surgical correction plan and device configurations are developed using patient radiological images.
The aprevo® cervical interbody system interbody devices are additively manufactured from titanium alloy (Ti-6Al-4V ELI) per ASTM F3001, and the screws are manufactured from titanium alloy (Ti-6Al-4V ELI) per ASTM F136. The associated system instruments, which facilitate the placement, adjustment, and removal, if necessary, of the implants, are manufactured from medical-grade materials, such as stainless steels and plastics.
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# corra™ cervical plating system
The corra™ cervical plating system, which is comprised of the corra™ cervical segmental plating system and the corra™ cervical multilevel plating system configurations, is intended for anterior fixation of the cervical spine. The system consists of a variety of patient-specific segmental and multilevel plates that are additively manufactured from titanium alloy (Ti-4Al-6V ELI) per ASTM F3001 as well as a range of screws manufactured from titanium alloy (Ti-4Al-6V ELI) per ASTM F136. The associated system instruments, which facilitate the placement, adjustment, and removal, if necessary, of the implants, are manufactured from medical-grade materials, such as stainless steels and plastics.
# Indications for Use
## aprevo® anterior and lateral lumbar interbody system
### aprevo® ALIF and LLIF interbody systems
The aprevo® ALIF and LLIF interbody systems are intended for interbody fusion in skeletally mature patients and are to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The aprevo® ALIF and LLIF interbody systems are indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The devices are intended to be used with autograft and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone graft. These devices may be implanted via a variety of open or minimally invasive approaches. These approaches may include anterior lumbar interbody fusion or lateral lumbar interbody fusion.
The aprevo® ALIF and LLIF interbody systems are indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis or kyphosis), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six months of non-operative treatment. The aprevo® ALIF and LLIF interbody systems are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone. These devices are intended to be used with supplemental fixation systems that have been cleared for use in the thoracolumbosacral spine (e.g., posterior pedicle screw and rod systems). These devices may be implanted via a variety of open or minimally invasive approaches.
### aprevo® ALIF-X interbody system
The aprevo® ALIF-X interbody system is intended for interbody fusion in skeletally mature patients. The aprevo® ALIF-X interbody system is indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The device is intended to be used with autograft and/or allogenic bone graft comprised of cancellous bone and/or corticocancellous bone and is to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The device may be implanted via an open or minimally invasive approach.
The aprevo® ALIF-X interbody system is indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis, kyphosis, or sagittal), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. The aprevo® ALIF-X interbody system is intended for standalone use at one or two levels of the spine when used with the screws that accompany the implant and with implants less than or equal to 20" of lordosis.
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At more than two levels or with implants greater than 20° of lordosis, the aprevo® ALIF-X interbody system is intended to be used with the screws that accompany the implant and with supplemental fixation. When used at more than one level in patients with degenerative scoliosis and/or sagittal deformity, the aprevo® ALIF-X interbody system must be used with the screws that accompany the implant and with supplemental internal spinal fixation system (e.g., pedicle screw system) cleared by the FDA for use in the lumbar spine. These patients should be skeletally mature and have had at least six months of non-operative treatment. The device is to be filled with autograft bone and/or allogenic bone graft comprised of cancellous and/or corticocancellous bone. The device may be implanted via an open or minimally invasive approach.
## aprevo® posterior and transforaminal lumbar interbody system
The aprevo® posterior and transforaminal lumbar interbody system is intended for interbody fusion in skeletally mature patients and is to be used with supplemental fixation instrumentation cleared for use in the lumbar spine. The aprevo® posterior and transforaminal lumbar interbody system is indicated for use as an adjunct to fusion at one or more levels of the lumbar spine in patients having an ODI >40 and diagnosed with severe symptomatic adult spinal deformity (ASD) conditions. These patients should have had six months of non-operative treatment. The device is intended to be used with autograft and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone graft. The device may be implanted via an open or minimally invasive approach.
The aprevo® posterior and transforaminal lumbar interbody system is indicated for use at one or more levels of the lumbosacral spine as an adjunct to fusion in patients with the following indications: degenerative disc disease (DDD), disc herniation (with myelopathy and/or radiculopathy), spondylolisthesis, deformity (degenerative scoliosis or kyphosis), spinal stenosis, and failed previous fusion (pseudarthrosis). DDD is defined as discogenic back pain with degeneration of the disc as confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six months of non-operative treatment. The aprevo® posterior and transforaminal lumbar interbody system is to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. The device is intended to be used with supplemental fixation systems that have been cleared for use in the thoracolumbosacral spine (e.g., posterior pedicle screw and rod systems). The device may be implanted via an open or minimally invasive approach.
## aprevo® cervical interbody system
### aprevo® cervical ACDF interbody system
The aprevo® cervical ACDF interbody system includes interbody fusion devices indicated at one or more levels of the cervical spine (C2-T1) in patients with cervical disc disease, instability, trauma including fractures, deformity defined as kyphosis, lordosis, or scoliosis, cervical spondylotic myelopathy, spinal stenosis, and failed previous fusion. Cervical disc disease is defined as discogenic pain with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six (6) weeks of non-operative treatment. The devices are to be filled with autograft bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. The aprevo® cervical ACDF interbody system must be used with supplemental fixation (e.g., cervical plate or cervical posterior fixation).
### aprevo® cervical ACDF-X interbody system
The aprevo® cervical ACDF-X interbody system includes interbody fusion devices indicated at one or more levels of the cervical spine (C2-T1) in patients with cervical disc disease, instability, trauma including fractures, deformity defined as kyphosis, lordosis, or scoliosis, cervical spondylotic myelopathy, spinal stenosis, and failed previous fusion. Cervical disc disease is defined as discogenic pain with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had at least six (6) weeks of non-operative treatment. The devices are to be filled with autograft
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bone and/or allogenic bone graft comprised of cancellous, cortical, and/or corticocancellous bone. When used with the screws that accompany the device, the aprevo® cervical ACDF-X interbody system is intended for use as a standalone system. Deformity procedures to correct coronal angulation or use of a hyperlordotic device (>20° lordosis) must include supplemental fixation (e.g., cervical plate or cervical posterior fixation).
## corra™ cervical plating system
The corra™ cervical plating system is intended for anterior cervical fixation (C2-T1) for the following indications:
- Degenerative disc disease (DDD) (defined as neck pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies),
- Spondylolisthesis,
- Trauma (i.e., fracture or dislocation),
- Spinal stenosis,
- Deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
- Tumor,
- Pseudoarthrosis, and
- Failed previous fusion.
## Summary of Technological Characteristics
The aprevo® interbody systems and corra™ cervical plating system technological characteristics are substantially equivalent to the predicate devices. The equivalence determination was based on comparison of intended use/indications for use and technological characteristics, including operating principle, design and components, materials, manufacturing, biocompatibility, packaging, labeling, sterility, and non-clinical testing. The subject systems differ from the predicate systems in regard to the addition of non-sterile instrument configurations, which do not raise questions of safety and effectiveness as demonstrated through non-clinical testing. The subject non-sterile instruments have the same design, same functions, and same instrument/implant interface as the previously cleared sterile instrument configurations.
## Non-Clinical Testing
The aprevo® interbody systems and corra™ cervical plating system demonstrated substantially equivalent performance to the cited predicate devices. Testing performed for the additional non-sterile instrument configurations associated with the subject systems included cleaning in accordance with ISO 17664-1 and ANSI AAMI ST98 and sterilization in accordance with ISO 17665 and ANSI AAMI ST79.
## Clinical Testing
Not applicable. The determination of substantial equivalence is not based on an assessment of clinical performance data.
## Conclusion
The submitted data demonstrates that the subject aprevo® interbody systems and corra™ cervical plating system are substantially equivalent to the cited legally marketed predicate devices.
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Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.