The Pajunk EpiLong anesthesia conduction kit is indicated for administration of epidural anesthesia. The Pajunk catheter is placed in the epidural space to facilitate a longer anesthetic effect. After the anesthesia conduction needle has been withdrawn from the patient, the catheter tip can remain in the epidural space for as long as determined by the professional anesthetist and the instructions for use (up to 72 hours). The Pajunk Loss of Resistance (LOR)-Syringe is intended for use in conjunction with an epidural needle, to verify the needle tip placement in the epidural space by the Loss of Resistance technique as explained in standard medical textbooks. These syringes are not intended for injection or aspiration. The Pajunk anesthesia conduction flat filter is a microporous filter used while administering to a patient injections of local anesthetics to minimize particulate (foreign material) contamination of the injected fluid. The Pajunk Tuohy Borst Adaptor is connected to the needle via Luer connector. It ensures sealing and fixation of the catheter end and allows attachment of a Luer Lock syringe or infusion device.
Device Story
EpiLong is a single-use, sterile, non-pyrogenic, latex-free anesthesia conduction kit. Components include a Tuohy cannula for epidural space access, an epidural catheter for anesthetic delivery, a LOR-syringe for needle placement verification, a flat filter for particulate removal, and a Tuohy-Borst adapter for catheter fixation. Used in clinical settings by professional anesthetists. The anesthetist inserts the Tuohy cannula into the epidural space, verifies placement using the LOR-syringe, and threads the catheter through the cannula. The cannula is removed, leaving the catheter in situ for up to 72 hours. The filter minimizes particulate contamination during anesthetic injection. The adapter secures the catheter and allows connection to infusion devices. The system facilitates prolonged anesthetic administration, potentially improving patient comfort and pain management.
Clinical Evidence
Bench testing only. No clinical data provided.
Technological Characteristics
Single-use, sterile, non-pyrogenic, latex-free kit. Components: Tuohy cannula, epidural catheter, LOR-syringe, microporous flat filter, Tuohy-Borst adapter. Materials are consistent with previously cleared anesthesia conduction kits. Mechanical assembly; no energy source or software.
Indications for Use
Indicated for patients requiring epidural anesthesia administration. Used by professional anesthetists to facilitate anesthetic delivery via catheter placement in the epidural space for up to 72 hours. Includes components for needle placement verification (LOR-syringe), fluid filtration, and catheter fixation.
Regulatory Classification
Identification
An anesthesia conduction kit is a device used to administer to a patient conduction, regional, or local anesthesia. The device may contain syringes, needles, and drugs.
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# JUN 1 3 2006
K060311
# EpiLong Premarket Notification Submission
MFDizin TECHNOLOGIE
## 510(k) Premarket Notification Submission:
### Summary of Safety and Effectiveness
### Date of Preparation: June 2006
### Submitter Information/ production site: Sterilizer: Pajunk GmbH Medizintechnologie SteriPro Lab & EO Facility Karl-Hall-Strasse 01 Dreieichstrasse. 7 78187 Geisingen 64546 Mörfelden Germany Germany Fon: +49(0)7704-9291-533 Tel +49 6105 23091 or +49 (0) 6105 93470 Fax: +49(0)7704-9291-605 Fax +49 6105 24760 Contact: Christian Quass, Regulatory Affairs Fon: +49(0)7704-9291-533
Fax: +49(0)7704-9291-605 E-Mail: christian.quass@pajunk.com Establishment Registration Number:
9611612
### Device Information:
| Trade Names: | EpiLong, EpiLong Set, EpiLong II Safety Kit |
|------------------------------------------|--------------------------------------------------------------------------|
| Common Name: | Anesthesia Conduction Kit |
| Classification Name: | Anesthesia Conduction Kit |
| Classification<br>Reference: | 21 CFR § 868.5140, April 1, 2005, |
| Poposed<br>Classification: | Regulatory Class II |
| Proposed Product<br>Classification Code: | CAZ, Kit, Conduction Anesthesia |
| Panel: | Anesthesiology |
| Predicate Devices: | 1. BBrauns Perifix K813186 (also included in BBrauns Espocan<br>K932400) |
CQ 2006-02-06
{1}------------------------------------------------
### Device Description
Paiunk's EpiLong set is a single use, sterile, non-pyrogenic and latex free medical device kit. It is a epidural anesthesia kit consisting of a needle for insertion into the epidural space (a special Tuohy Cannula), a catheter for anesthesia administration to the epidural space, a flat filter as well as an adapter.
After administration of immediate epidural anesthesia, the epidural catheter may be placed via the cannula into the epidural space. The cannula is then withdrawn, leaving the Epidural Catheter tip in the epidural space for as long as determined by the professional anesthetist and the instructions for use (up to 72 hours).
### Predicate Devices
The devices we claim substantial equivalence with is BBrauns Perifix K813186 (also included in BBrauns Espocan K932400).
The detailed discussion of substantial eqivalence can be found in Section 12 of this submission.
### Sterilization
The contract sterilizer and the sterilizing process other than a company name change (was IBA Griffith Micro Science, and now is Sterigenics) is the same as that used for anesthesia conduction cannulae cleared for market by FDA under 510(k) number K040965 and Kit Products Pajunks Stimulong Plus Plexus Catheter K043130, K033018 Pajunks Plexolong Sets K042979, K023218, K013041.
### Technology Characteristics:
The EpiLong kit provides a Tuohy Cannula with special tip through which the catheter is inserted directly in the epidural space for immediate administration of epidural anesthesia.
The epidural catheter is placed for prolonged (up to 72 hours) administration of epidural anesthesia. Safety is optimized by the use of the fixation adapter, Tuohy-Borst adapter and flat filter provided in the kit.
### Conclusion:
The comparison between the predicate device and the proposed devices in section 12 of this submission demonstrates that the proposed devices are safe and effective, as well as substantially equivalent to the predicate devices
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Image /page/2/Picture/1 description: The image shows the logo for the Department of Health and Human Services (HHS) in the United States. The logo features a stylized depiction of an eagle with three stripes representing the department's mission. The text "DEPARTMENT OF HEALTH AND HUMAN SERVICES - USA" is arranged in a circular fashion around the eagle symbol.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JUN 1 3 2006
Mr. Christian Quass Regulatory Affairs Pajunk GmbH Medizintechnologie Karl-Hall-Strasse 01 78187 Geisingen GERMANY
Re: K060311
Trade/Device Name: EpiLong Sets for Anesthesiology, Anesthesia Conducting Catheter, LOR-Syringe, Flat Filter, Tuohy Borst Adaptor Regulation Number: 21 CFR 868.5140 Regulation Name: Anesthesia Conduction Kit Regulatory Class: II Product Code: CAZ, BSO Dated: June 2, 2006 Received: June 5, 2006
Dear Mr. Quass:
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.
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### Page 2 - Mr. Quass
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 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 (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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.
Syltie Y. Michau Orns.
Chiu Lin, Ph.D. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
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Image /page/4/Picture/1 description: The image shows the logo for PAJUNK Medizintechnologie. The word "PAJUNK" is in large, bold, white letters against a black background. Below "PAJUNK" is the word "MEDIZINTECHNOLOGIE" in smaller, white letters. The logo appears to be for a medical technology company.
| Indications for use |
|---------------------|
|---------------------|
| 510(k) Number: | K060311 |
|----------------------|---------------------------------|
| Device Name: | EpiLong Sets for Anesthesiology |
| Indications for Use: | |
The Pajunk EpiLong anesthesia conduction kit is indicated for administration of epidural anesthesia.
| Prescription Use (Per 21 CFR 801.109) | X | AND/OR | Over-The-Counter Use (21 CFR 801 Subpart C) |
|---------------------------------------|---|--------|---------------------------------------------|
|---------------------------------------|---|--------|---------------------------------------------|
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)

| Sign-Off | |
|------------------------------------------|---------|
| Div of Anesthesiology, General Hospital, | |
| sion Control, Dental Devices | |
| Number | K060311 |
Page 1 of 1
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1
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Image /page/5/Picture/1 description: The image contains the word "PAJUNK" in large, bold, white letters against a black background. Below "PAJUNK" is the word "MEDIZINTECHNOLOGIE" in smaller, black letters. The text appears to be a logo or brand name, possibly related to medical technology.
### Indications for use
K060311 510(k) Number:
Device Name:
14:10 pm 11 to 11 am 11 am
Anesthesia conducting Catheter
Indications for Use:
The Pajunk catheter is placed in the epidural space to facilitate a longer anesthetic effect.
After the anesthesia conduction needle has been withdrawn from the patient, the catheter tip can remain in the epidural space for as long as determined by the professional anesthetist and the instructions for use (up to 72 hours).
Prescription Use (Per 21 CFR 801.109)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Aver Smecom
47-610 n of Anesthesiology, General Hospital. con Control, Dental Devic
Number K060311
Page 1 of 1
Image /page/5/Picture/21 description: The image contains the numbers 011. The numbers are written in a simple, sans-serif font. The numbers are arranged horizontally, with the 0 on the left, followed by 1 and 1. The numbers are black against a white background.
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Image /page/6/Picture/1 description: The image shows the logo for PAJUNK, a company that specializes in medical technology. The word "PAJUNK" is written in large, bold letters at the top of the image. Below the company name, the word "MEDIZINTECHNOLOGIE" is written in smaller letters. The logo is simple and professional, and it conveys the company's focus on medical technology.
### Indications for use
510(k) Number: K060311
#### Device Name: LOR-Syringe
### Indications for Use:
The Pajunk Loss of Resistance (LOR)-Syringe is intended for use in conjunction with an epidural needle, to verify the needle tip placement in the epidural space by the Loss of Resistance technique as explained in standard medical textbooks.
These syringes are not intended for injection or aspiration.
Prescription Use_ (Per 21 CFR 801.109)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Cure Suom
oi Anesthesiotogy, General Hospita
K060311
Page 1 of 1
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Image /page/7/Picture/1 description: The image shows the logo for PAJUNK. The logo is in white text on a black background. Below the logo is the word "MEDIZINTECHNOLOGIE" in a smaller font.
| Indications for use |
|---------------------|
|---------------------|
| 510(k) Number: | K060311 |
|----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name: | Flat Filter |
| Indications for Use: | The Pajunk anesthesia conduction flat filter is a microporous filter used while administering to a patient injections of local anesthetics to minimize particulate (foreign material) contamination of the injected fluid. |
| Prescription Use | X | AND/OR | Over-The-Counter Use |
|----------------------|---|--------|------------------------|
| (Per 21 CFR 801.109) | | | (21 CFR 801 Subpart C) |
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Number: K060311
Page 1 of 1
------
CQ 2006-04-27
-.
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Image /page/8/Picture/1 description: The image shows the logo for PAJUNK, a company specializing in medical technology. The word "PAJUNK" is displayed in large, bold, white letters against a black background. Below the company name, the words "MEDIZINTECHNOLOGIE" are printed in a smaller, sans-serif font.
### Indications for use
### 510(k) Number:
K060311
### Device Name:
Tuohy Borst Adaptor
### Indications for Use:
The Pajunk Tuohy Borst Adaptor is connected to the needle via Luer connector. It ensures sealing and fixation of the catheter end and allows attachment of a Luer Lock syringe or infusion device.
Prescription Use (Per 21 CFR 801.109)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Jum Sookeour
II of Anesthesiology, General Hos Control, D i ::nher
Page 1 of 1
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.