K230046 · Guangdong Kingfa Sci. & Tech.Co., Ltd. · LYZ · Mar 25, 2023 · General Hospital
Device Facts
Record ID
K230046
Device Name
Vinyl examination gloves
Applicant
Guangdong Kingfa Sci. & Tech.Co., Ltd.
Product Code
LYZ · General Hospital
Decision Date
Mar 25, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 880.6250
Device Class
Class 1
Indications for Use
The vinyl examination glove is intended to be worn on the hands of examiner's to prevent contamination between patient and examiner. This is a single-use, powder-free, non-sterile device.
Device Story
Vinyl examination glove; single-use; non-sterile; powder-free. Worn on hands by examiners to provide barrier protection; prevents cross-contamination between patient and examiner. Available in four sizes (S, M, L, XL). Manufactured from vinyl material. Used in clinical or home settings. Provides physical barrier; reduces risk of contamination during examinations.
Clinical Evidence
No clinical data. Bench testing only. Device performance verified against ASTM D5250-19 (physical dimensions, tensile strength, ultimate elongation), ASTM D5151-19 (freedom from holes), and ASTM D6124-06 (residual powder). Biocompatibility confirmed via ISO 10993-10 (irritation and sensitization) and ISO 10993-11 (acute systemic toxicity).
Technological Characteristics
Material: Vinyl. Form factor: Disposable, non-sterile, powder-free gloves. Sizes: S, M, L, XL. Standards: ASTM D5250-19, ASTM D3767-03, ASTM D5151-19, ASTM D6124-06. Biocompatibility: ISO 10993-10, ISO 10993-11. Connectivity: None. Energy source: None.
Indications for Use
Indicated for use as a protective barrier on the hands of examiners to prevent contamination between patient and examiner. Intended for single-use by clinicians or patients in over-the-counter settings.
Regulatory Classification
Identification
A non-powdered patient examination glove is a disposable device intended for medical purposes that is worn on the examiner's hand or finger to prevent contamination between patient and examiner. A non-powdered patient examination glove does not incorporate powder for purposes other than manufacturing. The final finished glove includes only residual powder from manufacturing.
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: a symbol on the left and the FDA name on the right. The symbol on the left is a stylized image of a human figure, while the FDA name on the right is written in blue letters. The words "U.S. FOOD & DRUG ADMINISTRATION" are written in a clear, sans-serif font.
March 25, 2023
Guangdong Kingfa Sci.& Tech.Co., Ltd. Xiaoge Yu Manager No.28, Delong Avenue, Shijiao Town, Qingcheng District Qingyuan, Guangdong 511545 China
Re: K230046
Trade/Device Name: Vinyl examination gloves Regulation Number: 21 CFR 880.6250 Regulation Name: Non-Powdered Patient Examination Glove Regulatory Class: Class I, reserved Product Code: LYZ Dated: December 28, 2022 Received: January 6, 2023
Dear Xiaoge Yu:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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
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statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
# Bifeng Qian -S
Bifeng Qian, M.D., Ph.D. Assistant Director DHT4B: Division of Infection Control and Plastic Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health
Enclosure
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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
### Indications for Use
510(k) Number (if known) K230046
Device Name Vinyl examination gloves
Indications for Use (Describe)
The vinyl examination glove is intended to be worn on the hands of examination between patient and examiner. This is a single-use, powder-free, non-sterile device.
Type of Use (Select one or both, as applicable)
X Over-The-Counter Use (21 CFR 801 Subpart C)
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## GUANGDONG KINGFA SCI. & TECH.CO., LTD. 510(k) summary K230046
#### I. Submitter
GUANGDONG KINGFA SCI. & TECH.CO., LTD. No. 28 Delong Avenue, Shijiao Town, Qingcheng District, Qingyuan City, Guangdong Province 511545, China
Contact person: Xiaoge Yu Position: Manager Tel.: +86-13570952157 E-mail: yuxiaoge@kingfa.com.cn Prepa
Date: March 2, 2023
### II. Proposed Device
| Device Trade Name | Vinyl examination gloves |
|--------------------|---------------------------------|
| Common name: | Vinyl Patient Examination Glove |
| Regulation Number: | 21 CFR 880.6250 |
| Regulatory Class: | Class I |
| Product code: | LYZ |
| Review Panel | General Hospital |
### III. Predicate Devices
| 510(k) Number: | K213006 |
|-----------------|---------------------------------------------|
| Trade name: | Vinyl examination gloves |
| Common name: | Vinyl Patient Examination Glove |
| Classification: | Class I |
| Product Code: | LYZ |
| Manufacturer | Taian Hengchang Medical Technology Co.,Ltd. |
#### IV. Device description
The proposed device is a powder free vinyl patient examination glove, provided as nonsterile and disposable device. The proposed device is provided with clear color. There are four sizes: small, medium, large and extra-large as options.
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## V. Indication for use
The vinyl examination glove is intended to be worn on the hands of examiner's to prevent contamination between patient and examiner. This is a single-use, powder-free, non-sterile device.
#### VI. Comparison of technological characteristics with the predicate devices
| Item | Proposed device<br>K230046 | Predicate device<br>(K213006) | Discussion |
|---------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------|
| Product name | Vinyl examination gloves | Vinyl examination gloves | - |
| Product Code | LYZ | LYZ | Same |
| Regulation No. | 21 CFR 880.6250 | 21 CFR 880.6250 | Same |
| Classification | Class I | Class I | Same |
| Powder free | Yes | Yes | Same |
| Indication for use | The vinyl examination glove is intended to be worn on the hands of examiner's to prevent contamination between patient and examiner. This is a single-use, powder-free, non-sterile device. | The vinyl examination glove is a disposable device intended for medical purposes that is worn on the examiner's hands to prevent contamination between patient and examiner. | Same |
| Main Material | Vinyl | Vinyl | Same |
| Color | Clear | Clear | Same |
| Size | Small, Medium, Large, X-large | Small, Medium, Large, X-large | Same |
| Palm width | Small (85±5mm)<br>Medium (95±5mm)<br>Large (105±5mm)<br>X-large (115±5mm) | Small (85±5mm)<br>Medium (95±5mm)<br>Large (105±5mm)<br>X-large (115±5mm) | Same |
| Length | ≥230mm | ≥230mm | Same |
| Thickness | Palm: 0.08mm min<br>Finger: 0.08mm min | Palm≥0.08mm<br>Finger tip≥0.08mm | Same |
| Freedom from holes | Meets requirements of the ASTM<br>D5250-19 | Meets requirements of the ASTM<br>D5250-19 | Same |
| Physical Properties<br>(before aging) | Meets requirements of the ASTM<br>D5250-19 | Meets requirements of the ASTM<br>D5250-19 | Same |
| Physical Properties<br>(after aging) | Meets requirements of the ASTM<br>D5250-19 | Meets requirements of the ASTM<br>D5250-19 | Same |
| Powder residual | ≤2.0 mg/gloves | ≤2.0 mg/gloves | Same |
| Sterility | Non-sterile | Non-sterile | Same |
| For single use | Yes | Yes | Same |
| Type of use | Over the counter use | Over the counter use | Same |
| Biocompatibility | ISO 10993-10<br>Under the conditions of the study, not an<br>irritant and sensitizer<br>ISO 10993-11<br>Under the condition of acute systemic<br>toxicity test, the test<br>article did not show<br>acute systemic<br>toxicity <i>in vivo</i> .<br>Cytotoxicity is<br>assessed via rationale. | ISO 10993-10<br>Under the conditions of the study, not an<br>irritant and sensitizer<br>ISO 10993-11<br>Under the condition of acute systemic<br>toxicity test, the test<br>article did not show<br>acute systemic<br>toxicity <i>in vivo</i><br>Cytotoxicity is<br>assessed via rationale. | Same |
Table 1 Comparison of Vinyl Examination Gloves
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### VII. Non-Clinical Testing
Non-clinical tests were conducted in accordance with following standards to verify that the proposed device met all design specifications.
- ASTM D5250-19, Standard Specification for Poly(vinyl chloride) Gloves for . Medical Application
- ASTM D3767-03(2020), Practice for rubber-Measurement of Dimensions ●
- ASTM D5151-19, Standard Test Method for Detection of Holes in Medical Gloves ●
- ASTM D6124-06(2017), Standard Test Method for Residual Powder on Medical ● Gloves
- ISO 10993-10: 2010 Biological Evaluation Of Medical Devices Part 10: Tests For . Irritation And Skin Sensitization.
- ISO 10993-11:2017, Biological evaluation of medical devices Part 11: Tests for ●
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Acute Systemic Toxicity.
|--|
| Test Method | Purpose | Acceptance Criteria | Results | | |
|--------------|--------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|------------------------|---------------------------------------------------------------------|------|
| ASTM D5250 | Physical<br>Dimensions Test | Length : ≥ 230mm<br>Width:<br>Small: 85±5mm;<br>Medium: 95±5mm<br>Large: 105±5mm<br>Extra- Large: 115±5mm | Pass | | |
| | | Thickness (mm):<br>Finger:≥0.08<br>Palm: ≥0.08 | Pass | | |
| | Physical<br>properties | Before<br>Aging | Tensile<br>Strength | ≥11MPa | Pass |
| | | | Ultimate<br>Elongation | ≥300% | |
| | | After<br>Aging | Tensile<br>Strength | ≥11MPa | Pass |
| | | | Ultimate<br>Elongation | ≥300% | |
| ASTM D5151 | Freedom from<br>pinholes | Meet the ASTM<br>requirements D5151<br>Test for AQL 2.5 | | Pass | |
| ASTM D6124 | Powder Residue | Meet ASTM<br>requirements<br>D6124< 2.0mg | | Pass | |
| ISO 10993-10 | To determine if<br>the finished<br>device material<br>is an irritant | Non-irritating | | Under the<br>conditions of the<br>study, not an<br>irritant. / Pass | |
| ISO 10993-10 | To determine if<br>the finished<br>device<br>material is a<br>sensitizer | Non- sensitizing | | Under conditions of<br>the study, not a<br>sensitizer. / Pass | |
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| ISO 10993-11 | To determine if the finished device material extracts pose a systemic toxic response. | Non-acute systemic toxicity | Under conditions of the study, did not show acute systemic toxicity in vivo. /Pass |
|--------------|---------------------------------------------------------------------------------------|-----------------------------|------------------------------------------------------------------------------------|
|--------------|---------------------------------------------------------------------------------------|-----------------------------|------------------------------------------------------------------------------------|
### VIII. Clinical Testing
No clinical study is included in this submission.
#### IX. Conclusion
The conclusions drawn from the non-clinical testing demonstrate that the Vinyl Examination Gloves are as safe, as effective, and perform as well as or better than the predicate, K213006.
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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.
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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.
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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
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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.
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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.