LB MEDICAL INFLATABLE TISSUE ELEVATOR/EXPANDER SYSTEM
K080158 · Lb Medical LLC · FZW · May 2, 2008 · General, Plastic Surgery
Device Facts
Record ID
K080158
Device Name
LB MEDICAL INFLATABLE TISSUE ELEVATOR/EXPANDER SYSTEM
Applicant
Lb Medical LLC
Product Code
FZW · General, Plastic Surgery
Decision Date
May 2, 2008
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4800
Device Class
Class 1
Attributes
Therapeutic
Indications for Use
The LB Medical Inflatable Tissue Elevator/Expander System is a surgical tool intended for use as a conventional manual elevator for orthopaedic or general surgery, including use to access the carpal tunnel region during carpal tunnel release procedures.
Device Story
Device is a manual surgical elevator featuring a distal inflatable balloon component; used in orthopaedic or general surgery. Surgeon inserts thin metal probe into tissue; inflates balloon with saline via manual syringe system with integral pressure gauge to elevate or expand tissue. Balloon is non-compliant and expands unidirectionally. Device provides mechanical assistance for tissue access, such as in carpal tunnel release. Used in clinical/surgical settings by physicians. Benefits include controlled tissue elevation/expansion during surgical procedures.
Clinical Evidence
No clinical data. Substantial equivalence demonstrated via bench testing and biocompatibility assessment of balloon materials.
Technological Characteristics
Manual surgical elevator; thin grooved metal probe; distal non-compliant semi-round inflatable balloon; manual saline inflation system with integral pressure gauge; unidirectional expansion; non-powered.
Indications for Use
Indicated for use as a manual elevator in orthopaedic or general surgery, including access to the carpal tunnel region during carpal tunnel release procedures.
Regulatory Classification
Identification
A manual surgical instrument for general use is a nonpowered, hand-held, or hand manipulated device, either reusable or disposable, intended to be used in various general surgical procedures. The device includes the applicator, clip applier, biopsy brush, manual dermabrasion brush, scrub brush, cannula, ligature carrier, chisel, clamp, contractor, curette, cutter, dissector, elevator, skin graft expander, file, forceps, gouge, instrument guide, needle guide, hammer, hemostat, amputation hook, ligature passing and knot-tying instrument, knife, mallet, disposable or reusable aspiration and injection needle, disposable or reusable suturing needle, osteotome, pliers, rasp, retainer, retractor, saw, scalpel blade, scalpel handle, one-piece scalpel, snare, spatula, stapler, disposable or reusable stripper, stylet, suturing apparatus for the stomach and intestine, measuring tape, and calipers. A surgical instrument that has specialized uses in a specific medical specialty is classified in separate regulations in parts 868 through 892 of this chapter.
{0}------------------------------------------------
10/13/2022
Image /page/0/Picture/1 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: on the left, there is the Department of Health & Human Services logo, which features a stylized caduceus symbol. To the right of this is the FDA logo, which includes the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG" in blue, with "ADMINISTRATION" written below in a smaller font size.
LB Medical L.L.C. Terry Sheridan Powell Senior Project Manager 901 King Street, Suite 200 Alexandria, Virginia 22314
Re: K080158
Trade/Device Name: LB Medical Inflatable Tissue Elevator/Expander System Regulation Number: 21 CFR 878.4800 Regulation Name: Manual surgical instrument for general use Regulatory Class: Class I Product Code: FZW
Dear Terry Sheridan Powell:
The Food and Drug Administration (FDA) is sending this letter to notify you of an administrative change related to your previous substantial equivalence (SE) determination letter dated May 3, 2008. Specifically, FDA is updating this SE Letter because FDA has better categorize your device technology under product code FZW.
Please note that the 510(k) submission was not re-reviewed. For questions regarding this letter please contact Deborah Fellhauer, OHT4: Office of Surgical and Infection Control Devices, 301-796-9570, Deborah.Fellhauer@fda.hhs.gov.
> Sincerely, Deborah A. Fellhauer -S Deborah A. 2022.10.13 13:11:01 Fellhauer -S -04'00'
Deborah A. Fellhauer RN, BSN Assistant Director DHT4B: Division of Infection Control and Plastic Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
{1}------------------------------------------------
Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle or bird-like symbol on the right side. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" is arranged in a circular fashion around the symbol. The text is in all capital letters and is in a sans-serif font.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
1
MAY - 2 2008
LB Medical LLC % M Squared Associates, Inc. Terry Sheridan Powell 901 King Street, Suite 200 Alexandria, Virginia 22314
Re: K080158
Trade/Device Name: The LB Medical Inflatable Tissue Elevator/Expander System Regulatory Class: Unclassified Product Code: LCJ Dated: April 15, 2008 Received: April 16, 2008
Dear Terry Powell:
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 such 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.
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally
{2}------------------------------------------------
Page 2 - Terry Sheridan Powell
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 Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0115. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at (240) 276-3474. For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at (240) 276-3464. You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours.
Mark N. Wilkerson
Mark N. Melkerson Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
2
Enclosure
{3}------------------------------------------------
## Indications for Use
510(k) Number (if known): K ೧೯೮) 58
Device Name: The LB Medical Inflatable Tissue Elevator/Expander System
Indications for Use:
The LB Medical Inflatable Tissue Elevator/Expander System is a surgical tool intended for use as a conventional manual elevator for orthopaedic or general surgery, including use to access the carpal tunnel region during carpal tunnel release procedures.
Prescription Use X AND/OR (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 807 Subpart C)
3
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Nil R.P. Gfr Gr mxm
Division Division of General, Restorative, and Neurological Devices
Page 1 of 1
510(k) Number K080158
{4}------------------------------------------------
1080158
MAY - 2 2008
## Section 5: 510(k) Summary
| Sponsor's Name,<br>Address, Phone &<br>Fax: | LB Medical, LLC<br>895 Mohawk Road<br>Franklin Lakes, NJ 07417 |
|----------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Terry Sheridan Powell<br>M Squared Associates, Inc., Consultants to LB Medical, LLC<br>(T) 703-562-9800<br>(F) 703-562-9797<br>tpowell@msquaredassociates.com |
| Date Prepared: | January 18, 2008 |
| Device Trade Name | LB Medical Inflatable Tissue Elevator/Expander System |
| Device Common<br>Name: | Elevator |
| Proposed Class,<br>Classification Name<br>and Number, and<br>Product Code: | Class I (non-exempt)<br>878.4800 - Manual surgical instrument for general use<br>HTE – Elevator |
| Predicate Devices: | Preamendment: Elevator/Probe/Groove Director/Freer K041454: KyphX Inflatable Bone Tamp K061903: Acclarent Sinus Balloon Catheter K972109: Spacemaker Surgical Balloon<br>Disssector/Expander K061937: Cook Esophageal Dilation Balloon |
| Device Description : | The subject device is similar to a traditional elevator, but<br>features a manually inflatable balloon component at the distal<br>end. The balloon is inflated/deflated with saline via a manual<br>inflation syringe system with an integral pressure gauge. |
| Intended Use: | The LB Medical Inflatable Tissue Elevator/Expander System is a<br>surgical tool intended for use as a conventional manual elevator<br>for orthopaedic or general surgery, including use to access the<br>carpal tunnel region during carpal tunnel release procedures. |
| Summary of<br>Technological<br>Characteristics: | The main technological characteristics of the subject device<br>include:<br>A traditional manual elevator: the subject device features a<br>thin grooved metal probe (also called an elevator, grooved<br>director, or freer). As with the predicate KyphX device, this<br>probe houses an uninflated expandable balloon at its distal<br>end. Expandable balloon: the subject device features a semi-round<br>expandable balloon housed at the distal end of the metal<br>elevator. The balloon is made from non-compliant material<br>that expands unidirectionally when inflated. The manually<br>inflatable balloon feature is shared by all the cited post- |
| | amendment 510(k)-cleared predicate devices.<br>Balloon expansion mechanism: the subject device's balloon component is expanded with saline manually using a syringe/catheter assembly with an integral pressure gauge. This feature is shared by several of the cited post-amendment predicate devices. |
| Summary of<br>nonclinical tests | Biocompatibility tests on the balloon material have demonstrated<br>the suitability of the material for its intended purpose. Bench<br>testing of the balloon has demonstrated that its performance<br>characteristics are suitable for its intended use during hand<br>surgery. |
| Summary of clinical<br>tests | Clinical testing was not required to demonstrate the substantial<br>equivalence of the subject device to its predicate devices with<br>regard to materials, design, technological characteristics, or<br>intended use. |
| Conclusions from<br>nonclinical and<br>clinical tests | The subject device features materials that are suitable for the<br>device's intended purpose. The device's balloon mechanism is<br>suitable for its intended uses during hand surgery. |
{5}------------------------------------------------
:
:
:
:
:
:
{6}------------------------------------------------
Image /page/6/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three stripes representing the three branches of government. The eagle is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA".
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAY - 2 2008
LB Medical LLC % M Squared Associates, Inc. Terry Sheridan Powell 901 King Street. Suite 200 Alexandria, Virginia 22314
Re: K080158
Trade/Device Name: The LB Medical Inflatable Tissue Elevator/Expander System Regulatory Class: Unclassified Product Code: LCJ Dated: April 15, 2008 Received: April 16, 2008
Dear Terry Powell:
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 such 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.
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally
{7}------------------------------------------------
Page 2 - Terry Sheridan Powell
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 Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0115. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding postmarket surveillance. please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at (240) 276-3474. For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at (240) 276-3464. You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely vours.
Mark M. Millerson
Mark N. Melkerson Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{8}------------------------------------------------
## Indications for Use
510(k) Number (if known): K 080)S8
Device Name: The LB Medical Inflatable Tissue Elevator/Expander System
Indications for Use:
The LB Medical Inflatable Tissue Elevator/Expander System is a surgical tool intended for use as a conventional manual elevator for orthopaedic or general surgery, including use to access the carpal tunnel region during carpal tunnel release procedures.
Prescription Use AND/OR X (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Nel R.P. Gfr. Gr mxm
Division of General. Restorative. and Neurological Devices
Page 1 of 1
510(k) Number K080158
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.