TIGER ENDOTRACHEAL TUBES (VARIOUS MODELS AND SIZES)
K041311 · Tiger Medical Products, Ltd. · BTR · Mar 18, 2005 · Anesthesiology
Device Facts
Record ID
K041311
Device Name
TIGER ENDOTRACHEAL TUBES (VARIOUS MODELS AND SIZES)
Applicant
Tiger Medical Products, Ltd.
Product Code
BTR · Anesthesiology
Decision Date
Mar 18, 2005
Decision
SESE
Submission Type
Abbreviated
Regulation
21 CFR 868.5730
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The intended use for all the product variants is grouped into three different sections: (a) CATEGORY 1 (uncuffed, oral/nasal) and CATEGORY 4 (cuffed, oral /nasal): The intended use of this device is to be intubated into a patient's trachea via the nose or mouth for airway management. (b) CATEGORY 2 (uncuffed, nasal only) and CATEGORY 5 (cuffed, nasal only): The intended use of this device is to be intubated into a patient's trachea via the nose for airway management, specifically for use in surgical procedures involving the head, neck and face. (c) CATEGORY 3 (uncuffed, oral only) and CATEGORY 6 (cuffed, oral only): The intended use of this device is to be intubated into a patient's trachea via the mouth for airway management, specifically for use in surgical procedures involving the head, neck and face.
Device Story
Tiger Endotracheal tubes are sterile, single-use devices for airway management; available in 90 variants across 6 configurations (cuffed/uncuffed; oral/nasal/oral-nasal). Device consists of clear tracheal tube with radiopaque blue stripe, graduated centimeter markings, and 15mm standard connector. Used by clinicians in clinical or surgical settings to maintain patient airway. Device provides physical conduit for ventilation; output is mechanical airway access. Benefits include secure airway maintenance during anesthesia or respiratory distress.
Clinical Evidence
Bench testing only. No clinical data provided. Substantial equivalence supported by comparison of technological characteristics, design, materials, and performance standards (ISO 5261:1999, ASTM F1242:1996).
Technological Characteristics
Clear tracheal tube with radiopaque blue stripe; 15mm standard connector; graduated markings. Materials conform to ISO 5261:1999 and ASTM F1242:1996. Available in 0.5mm ID increments (sizes 2.0-10.0). Sterile, single-use. No energy source or software.
Indications for Use
Indicated for airway management via tracheal intubation (oral or nasal) in patients requiring airway support, including surgical procedures involving the head, neck, and face.
Regulatory Classification
Identification
A tracheal tube is a device inserted into a patient's trachea via the nose or mouth and used to maintain an open airway.
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# MAR 1 8 2005 510(k) Summary As Required by 21 section 807.92 ( c )
1-Submitter Name: TIGER MEDICAL PRODUCTS LTD
2-Address: Liu Lin Tower, Suite 1910. 1 Huai Hai Zhong Road. Shanghai 200021 CHINA
3-Phone: +86-21-6386-6300
+86-21-5383-5200 4-Fax:
Mark Engel, President 5-Contact Person:
6-Date summary prepared: April 15th, 2004
7 - Official Correspondent: TIGER REGULATORY
1308 Morningside Park Dr. Alpharetta, GA 30022 USA 8- Address:
9- Phone: (770) 777-4146
10- Fax (678) 623- 3765
11- Contact person: Jay Mansour
12-Device Trade or Proprietary Name: Tiger Endotracheal tubes (various models and sizes)
13-Device Common or usual name: Tracheal tubes
14-Device Classification Name: Tracheal tubes
15-Substantial Equivalency is claimed against the following device:
- For oral/nasal, cuffed and uncuffed: K892432 .
- . For nasal only, cuffed: K931164
- For oral only, cuffed: K931163 .
- For nasal only, uncuffed: K931165 .
- For oral only, uncuffed: K931166 .
### 11-Description of the Device:
Tiger Medical Products Ltd's Endotracheal tube is available in 90 different variants distributed among 6 main configurations and different sizes, as detailed below. It is marketed as sterile, single use, for airway management.
It consists of a clear tracheal tube with radiopaque blue stripe running its entire length, and it is graduated with multiple centimeter markings to allow easy detemination of intubated length, and is terminated with a 15mm standard connector.
It conforms to ISO 5261: 1999 and ASTM F1242: 1996 with one minor exception in the tube marking.
The six categories (or confiqurations) are listed below:
- (a) CATEGORY 1: uncuffed, oral/nasal:
It is provided as uncuffed, murphy, oral/nasal, and in 0.5mm ID increments from sizes 2.0 to 10.0 inclusive, totalling 17 sizes
(b) CATEGORY 2: uncuffed, nasal only:
It is provided as uncuffed, murphy, preformed nasal- 2 eyes, and in 0.5mm ID increments from sizes 2.0 to 10.0 inclusive, totalling 17 sizes
Page 9
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- (c) CATEGORY 3: uncuffed, oral only:
It is provided as uncuffed, murphy, preformed oral- 2 eyes, and it is provided as anones from sizes 2.0 to 10.0 inclusive, totalling 17 sizes
- (d) CATEGORY 4: cuffed, oral/nasal:
lt is provided as cuffed, murphy, oral/nasal, and in 0.5mm ID it is provided as sizes 4.0 to 10.0 inclusive, totalling 13 sizes
- (e) CATEGORY 5: cuffed, nasal only:
It is provided as cuffed, murphy, preformed nasal, and in 0.5mm ID increments from sizes 4.0 to 10.0 inclusive, totalling 13 sizes
- (f) CATEGORY 6: cuffed, oral only:
lt is provided as cuffed, murphy, preformed oral, and in 0.5mm ID increments from sizes 4.0 to 10.0 inclusive, totalling 13 sizes
12-Intended use of the device: (refer to FDA form attached)
The intended use for all the product variants is grouped into three different sections:
(a) CATEGORY 1 (uncuffed, oral/nasal) and CATEGORY 4 (cuffed, oral /nasal): The intended use of this device is to be intubated into a patient's trachea via the nose or mouth for airway management.
(b) CATEGORY 2 (uncuffed, nasal only) and CATEGORY 5 (cuffed, nasal only): The intended use of this device is to be intubated into a patient's trachea via the nose f no intentionally management, specifically for use in surgical procedures involving the head, neck and face.
(c) CATEGORY 3 (uncuffed, oral only) and CATEGORY 6 (cuffed, oral only): The intended use of this device is to be intubated into a patient's trachea via the mouth for airway management, specifically for use in surgical procedures involving the head, neck and face.
### 13-Safety and Effectiveness of the device:
This device is safe and effective as the predicate device cited above. This is better expressed in the tabulated comparison (Paragraph 14 below)
14-Summary comparing technological characteristics with predicate device:
Please find below a tabulated comparison supporting that this device is substantially equivalent to other medical devices in commercial distribution. Also, Equivalency overview chart path is attached. Indeed, this device is SUBSTANTIALLY EQUIVALENT to the predicate device. Refer to the explanations/details within the main submission.
PAGE 10
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| FDA file reference number: | 510k # |
|-----------------------------------------------------|-------------------|
| Uncuffed, oral/Nasal | K892432 |
| Uncuffed, nasal only | K931165 |
| Uncuffed, oral only | K931166 |
| Cuffed, oral/Nasal | K892432 |
| Cuffed, nasal only | K931164 |
| Cuffed, oral only | K931163 |
| TECHNOLOGICAL<br>CHARACTERISTICS | Comparison result |
| | |
| Indications for use | Identical |
| Target population | Identical |
| Design | Similar |
| Materials | Similar |
| Performance | Similar |
| Sterility | Similar |
| Biocompatibility | Similar |
| Mechanical safety | Similar |
| Chemical safety | Similar |
| Anatomical sites | Identical |
| Human factors | Similar |
| Energy used and/or delivered | N/A |
| Compatibility with environment and<br>other devices | N/A |
| Where used | Identical |
| Standards met | Similar |
| Electrical safety | N/A |
| Thermal safety | N/A |
| Radiation safety | N/A |
.
Refer to the submission for more details concerning dimensional and technological
.complessions for all 6 categories, as well as corresponding engineering drawings and samples supplied.
{3}------------------------------------------------
## DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract symbol that resembles an eagle or a stylized human figure. The symbol is composed of three curved lines that converge at the bottom.
#### Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAR 1 8 2005
Tiger Medical Products, Limited C/O Mr. Jay Mansour Tiger Regulatory 1308 Morningside Park Drive Alpharetta, Georgia 30022
Re: K041311
Trade/Device Name: Tiger Endotracheal Tubes Regulation Number: 21 CFR 868.5730 Regulation Name: Tracheal Tube Regulatory Class: II Product Code: BTR Dated: February 28, 2005 Received: March 4, 2005
Dear Mr. Mansour:
We have reviewed your Section 510(k) premarket notification of intent to market the device we have reviewed your end 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 mendments, or to devices that have been reclassified in accordance with the provisions of Amendinents, of to use, 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 approvisions 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 (1 vir 1), it wean 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.
{4}------------------------------------------------
#### Page 2 - Mr. Mansour
Please be advised that FDA's issuance of a substantial equivalence determination does not I Teast that FDA has made a determination that your device complies with other requirements Incan that I DA mas made a statutes and regulations administered by other Federal agencies.
You must comply with all the Act's requirements, including, but not limited to: registration I ou inust comply with an are reseling (21 CFR Part 801); good manufacturing practice and if in the (21 er read in the quality systems (QS) regulation (21 CFR Part 820); and if requirements as set form in are quadiation control provisions (Sections 531-542 of the Act); apprication, the noon one fetter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence m 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), If you desire specific at not to to pliance 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 Inter 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/industry/support/index.html.
Sincerely yours,
Cieu Seliom byr
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
Enclosure
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### Indications for Use
510(k) Number (if known):
Device Name: Tiger Endotracheal Tubes
Indications For Use:
The indication for use for all the product variants is grouped into three different sections:
(a) Uncuffed, oral/nasal and Cuffed, oral /nasal:
(a) Unculted, orainasal and Culled, oral maoun.
The intended use of this device is to be intubated into a patient's trachea via the nose or mouth for airway management.
(b) Uncuffed, nasal only and Cuffed, nasal only:
(b) Unculted, nasal only and Culled, hasar only.
The intended use of this device is to be intubated into involving the head, neck a The intended use of this device is to be intubation into a parchite interest involving the head, neck and face.
(c) Uncuffed, oral only and Cuffed, oral only:
Infaction Control. Dent
310(k) Number.
(c) Unculted, oral only and Culled, orar only.
The intended use of this device is to be intubated into a patients involving the hood, nock an The intended use of this device is to be intubated into a patients involving the head, neck and face.
Prescription Use _ (Part 21 CFR 801 Subpart D) AND/OR
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)
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Page 1 of
PAGE-12
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.