K013994 · Klt Telecom, Inc. · LLZ · Feb 1, 2002 · Radiology
Device Facts
Record ID
K013994
Device Name
MODIFICATION TO VIEWSEND MEDICAL
Applicant
Klt Telecom, Inc.
Product Code
LLZ · Radiology
Decision Date
Feb 1, 2002
Decision
SESE
Submission Type
Special
Regulation
21 CFR 892.2050
Device Class
Class 2
Attributes
Software as a Medical Device
Indications for Use
When installed on an appropriate PC-based platform, VIEWSEND Medical software is intended to provide the medical professional with the capability to view, retrieve, store, import, process, collaborate, and/or transmit medical images in order to render a diagnosis. Options allow for teleradiology, telemedicine, videoconferencing, collaboration, DICOM 3.0, communications, viewer, customizable database, stand-alone or client/server or web-based, compression, or security. Communications between systems can be performed over wireless/wired LAN, ISDN, T1, ATM, satellite, and/or plain old telephone system (POTS). The DICOM 3.0 option allows for query, retrieve, send, receive, print, or DICOM Dir actions with DICOM 3.0 compliant modalities or servers.
Device Story
VIEWSEND Medical is PC-based imaging software for teleradiology and telemedicine; enables viewing, retrieving, storing, importing, processing, and transmitting medical images. Inputs include digitized medical films, scanned images, and live video from cameras/scopes. Operates on Windows 98/2000/NT; supports DICOM 3.0; utilizes wired/wireless LAN, ISDN, T1, ATM, satellite, or POTS for data transmission. Features include 128-bit encryption, JPEG/JPEG2000 compression, and database management. Used by medical professionals in remote locations to consult on patient cases; facilitates image comparison between previous and current exams. Output is displayed on PC monitors for diagnostic decision-making; supports collaborative discussion via videoconferencing.
Clinical Evidence
No clinical data. Bench testing only; software revisions were verified through a documented test plan including description of procedures, expected results, and use of automated test tools.
Technological Characteristics
PC-based software; runs on Microsoft Windows 98/2000/NT. Supports DICOM 3.0 connectivity; data transmission via LAN, ISDN, T1, ATM, satellite, or POTS. Features 128-bit encryption and JPEG/JPEG2000 compression. Modular architecture supports stand-alone, client/server, or web-based deployment.
Indications for Use
Indicated for use by medical professionals to view, retrieve, store, import, process, collaborate, and transmit medical images for diagnostic purposes via teleradiology, telemedicine, and videoconferencing platforms.
Regulatory Classification
Identification
A medical image management and processing system is a device that provides one or more capabilities relating to the review and digital processing of medical images for the purposes of interpretation by a trained practitioner of disease detection, diagnosis, or patient management. The software components may provide advanced or complex image processing functions for image manipulation, enhancement, or quantification that are intended for use in the interpretation and analysis of medical images. Advanced image manipulation functions may include image segmentation, multimodality image registration, or 3D visualization. Complex quantitative functions may include semi-automated measurements or time-series measurements.
Special Controls
*Classification.* Class II (special controls; voluntary standards—Digital Imaging and Communications in Medicine (DICOM) Std., Joint Photographic Experts Group (JPEG) Std., Society of Motion Picture and Television Engineers (SMPTE) Test Pattern).
{0}------------------------------------------------
K013994
Premarket Notification KLT Telecom Inc. VIEWSEND Medical August 24, 2001
Image /page/0/Picture/2 description: The image shows the logo for ViewSend. The logo is black and features the word "ViewSend" in a stylized font. There is a curved line above the word, and a small circle to the right of the word.
# APPENDIX 4
### FEB 01 2002 510(K) Summary
## VIEWSEND Medical
| Submitted By: | KLT Telecom, Inc. |
|---------------|---------------------------|
| | 14080-A Sullyfield Circle |
| | Chantilly, VA 20151 |
| | Tel. 703.502.1488 |
Ken Logsdon, Jr. Contact Person: Director of Programs 703.502.1840
| Modified Device Trade Name: | VIEWSEND Medical |
|-------------------------------|----------------------------------------|
| Unmodified Device Trade Name: | VIEWSEND Medical Model 1200 (K-962225) |
| Common Name: | VIEWSEND Medical |
| Classification: | Unclassified |
#### DEVICE DESCRIPTION A.
When integrated into an appropriate PC-based platform, VIEWSEND Medical imaging software contains several modules to enable the medical professional to view, retrieve, store, import, process, collaborate, and transmit medical images in order to render a diagnosis. VIEWSEND Medical software can include teleradiology, telemedicine, and videoconferencing in an open system that runs under the Microsoft Windows 98/2000/NT operating system.
VIEWSEND Medical software is modular and able to provide one or more of the VIEWSEND standard features to match clinical needs - teleradiology, telemedicine, videoconferencing, collaboration, DICOM 3.0, communications, viewer, customizable database, stand-alone or client/server or web-based, compression, or security.
Existing medical films can be digitized, scanned, and stored as DICOM 3.0 images. Communications between systems can be performed over wireless/wired LAN, ISDN, T1, ATM, satellite, or plain old telephone system (POTS). The DICOM option allows for query, retrieve, send, receive, print, or DICOM Dir actions with DICOM 3.0 compliant modalities or servers.
VIEWSEND Medical software allows medical professionals in remote locations to view, discuss and consult on the same images of a patient case file. This can be done with live cameras and scopes or by sending high-resolution files that have been scanned into the remotely located PC.
Appendix 4-1
{1}------------------------------------------------
Premarket Notification KLT Telecom Inc. VIEWSEND Medical August 24, 2001
Image /page/1/Picture/1 description: The image shows the logo for ViewSend. The logo is black and has a curved line above the text. The word "ViewSend" is written in a bold, sans-serif font, with a registered trademark symbol next to the "d".
VIEWSEND Medical software allows images to be sent from the archive files of one machine, and be transported to a different server, so that images from previous examinations may be compared with new more up-to-date images. These stored images can be at the physician request, sent in advance to save time and bandwidth during crucial consultations. Communications between VIEWSEND systems can use industry standard 128-bit encryption, and/or JPEG or JPEG2000 compression.
#### INTENDED USE B.
When installed on an appropriate PC-based platform, VIEWSEND software is intended to provide the medical professional with the capability to manipulate, annotate, and/or transmit medical images in order to render a diagnosis. Options include teleradiology, telemedicine, videoconferencing, communications, viewer, customizable database, DICOM 3.0, stand-alone or client/server or web-based, compression, and/or security.
Communications between systems can be performed over wired LAN, ISDN, T1, ATM, satellite, and/or plain old telephone system (POTS). The DICOM 3.0 option allows for query, retrieve, send, receive, print, or DICOM Dir actions with DICOM 3.0 compliant modalities or servers.
#### C. TECHNOLOGICAL CHARACTERISTICS
The technological characteristics of the modified device are the original device. Incremental revisions to the software have been made.
#### D. TESTING
Testing of the incremental software revisions followed KLT's normal procedures. A test plan was developed containing a description of relevant test procedures. Test results were documented including what was tested, expected results, whom the test was performed by, which resources used (such as automated test tools).
#### E. CONCLUSIONS
In summary, KLT has demonstrated that the intended use for VIEWSEND Medical is the same as the original device. The technological characteristics have been described in sufficient detail to demonstrate that they are the same as the original device. Therefore, this premarket notification has demonstrated Substantial Equivalence as defined and understood in the Federal Food, Drug, & Cosmetic Act and its amendments.
{2}------------------------------------------------
Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized symbol that resembles a bird in flight, composed of three curved lines.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
FEB 01 2002
Mr. Ken Logsdon, Jr. Director of Programs KLT Telecom, Inc. 14080-A Sullyfield Circle CHANTILLY VA 20151-1623 Re: K013994
Trade/Device Name: ViewSend Medical Regulation Number: 21 CFR 892.2050 Regulation Name: Picture Archiving and Communications System
Regulatory Class: II Product Code: 90 LLZ Dated: January 10, 2002 Received: January 11, 2002
Dear Mr. Logsdon:
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 (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. 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.
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.
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); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (sections 531-542 of the Act); 21 CFR 1000-1050.
{3}------------------------------------------------
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 8xx.1xxx | (301) 594-4591 |
|----------------------------------|----------------|
| 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 |
| 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 |
| 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 |
| Other | (301) 594-4692 |
Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.
Sincerely yours,
Nancy C. Hogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
Page 1 of I
K013994 510(k) Number (if known):
ViewSend Medical Device Name:
Indications For Use:
When installed on an appropriate PC-based platform, VIEWSEND Medical software is intended to provide the medical professional with the capability to view, retrieve, store, import, process, collaborate, and/or transmit medical images in order to render a diagnosis. Options allow for teleradiology, telemedicine, videoconferencing, collaboration, DICOM 3.0, communications, viewer, customizable database, stand-alone or client/server or web-based, compression, or security. castommande and ass, suase, can be performed over wireless/wired LAN, ISDN, T1, ATM, satellite, and/or plain old telephone system (POTS). The DICOM 3.0 option allows for query, satchire, and, receive, print, or DICOM Dir actions with DICOM 3.0 compliant modalities or server.
(Please Do NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use
(Optional Format 3-10-98)
David h. Seymore
(Division Sign-Off) Division of Reproductive, and Radiological Devi 510(k) Number
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
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.