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510(k) Data Aggregation
(100 days)
Shantou Wealy Medical Instrument CO.,Ltd.
The Automatically Retractable Safety Syringes with detachable needle devices are indicated for use where a safe and reliable method for intramuscular and subcutaneous injection of medication in a patient is desired.
The Disposable Automatically Retractable Safety Syringes (with Detachable Needle) devices are piston syringes, intended for medical purpose and consist of a calibrated hollow barrel and a movable plunger. The syringe works like a conventional hypodermic syringe except that the contaminated needle is retracted inside the syringe immediately after patient injection. The needle retracting mechanism is activated by a spring action mechanism after injection is completed. The exposed needle remains safely inside the syringe plunger for disposal. The Disposable Automatically Retractable Safety Syringes (with Detachable Needle) devices are sterile, single use, disposable and non-reusable.
The provided document, a 510(k) Premarket Notification summary for Disposable Automatically Retractable Safety Syringes, does not describe the acceptance criteria and study that proves the device meets the acceptance criteria in the manner typically found for AI/ML-based medical devices. This document specifically pertains to a physical medical device (syringes) and not an AI/ML diagnostic or therapeutic system.
Therefore, the requested information regarding acceptance criteria, performance metrics, sample sizes for test and training sets, expert qualifications, ground truth establishment, MRMC studies, and standalone performance for an AI/ML device is not applicable to this document.
The document discusses the substantial equivalence of a new syringe design to a predicate device based on non-clinical testing of physical and chemical properties and a simulated clinical study for sharps injury prevention.
Here's an interpretation of the closest relevant sections to your request formats, acknowledging the fundamental difference in device type:
1. A table of acceptance criteria and the reported device performance:
The document lists "Non-Clinical Tests performed on the subject device" and references various ISO standards for syringe and needle properties. These standards implicitly define the acceptance criteria, and the statement "The proposed devices were tested per the following standards, to evaluate its performance" implies that the device met these standards. However, the document does not report specific quantitative performance data or explicit acceptance thresholds met by the device for each test. It only lists the tests performed.
Acceptance Criteria (Implied by Standards) | Reported Device Performance |
---|---|
ISO 7886-1:2017 Sterile hypodermic syringes for single use - Part 1: Syringes for manual use | "The proposed devices were tested per the following standards, to evaluate its performance." (Implies compliance, but no specific data provided) |
- Limits for acidity or alkalinity | - |
- Limits for extractable metals | - |
- Lubricant | - |
- Tolerance on graduated capacity | - |
- Scale, Numbering of scales, Position of Scale | - |
- Barrel dimensions, Barrel flanges, Plunger stopper/plunger assembly, Conical fitting, Position of nozzle on end of barrel, Nozzle lumen, Dead space | - |
- Freedom from air and liquid leakage past plunger stopper | - |
- Force to operate the piston, Fit of plunger stopper/plunger in barrel | - |
ISO 7886-4:2006 Sterile hypodermic syringes for single use -- Part 4: Syringes with re-use prevention feature | "The proposed devices were tested per the following standards, to evaluate its performance." (Implies compliance, but no specific data provided) |
- Self-destructive performance | - |
ISO 7864:2016 Sterile hypodermic needles for single use | "The proposed devices were tested per the following standards, to evaluate its performance." (Implies compliance, but no specific data provided) |
- Cleanliness, Limits for acidity and alkalinity, Limits for extractable metals, Size designation, Color coding, Needle tube, Freedom from defects, Lubricant, Needle point, bond between hub and needle tube, Patency of lumen, Fragmentation test for medical needles, Determination of flow rate through the needle | - |
ISO 9626:2016 Stainless steel needle tubing for the manufacture of medical devices. | "The proposed devices were tested per the following standards, to evaluate its performance." (Implies compliance, but no specific data provided) |
- Surface finish and visual appearance testing, Cleanliness, Limits for acidity and alkalinity, Size designation, Dimensions, Stiffness, Resistance to breakage, Resistance to corrosion | - |
ISO 23908:2011 Sharps Injury Prevention | "The proposed devices were tested per the following standards, to evaluate its performance." (Implies compliance) |
"It can support a conclusion that 99% reliability of device activation is achievable." (Specific claim for this test, which is a key safety feature.) | |
- Force applied on the plunger to activate the retractable mechanism | - |
- Testing simulated clinical use | - |
ISO 80369-7:2018 Small-bore connectors for liquids and gases in healthcare applications - Part 7: Connectors for intravascular or hypodermic applications | "The proposed devices were tested per the following standards, to evaluate its performance." (Implies compliance, but no specific data provided) |
- Fluid leakage, Sub-atmospheric Pressure Air Leakage, Stress Cracking, Resistance to Separation from Unscrewing, Resistance to Separation from Axial Load, Resistance to Overriding | - |
Biocompatibility Tests (ISO 10993 series) | "The proposed devices were tested per the following standards, to evaluate its performance." (Implies compliance, but no specific data provided) |
- Cytotoxicity, Sensitization, Irritation, Systemic Toxicity, Haemocompatibility | - |
- Accelerated aging testing, Package verification, Simulated transportation testing | - |
- USP Particulate matter in injection, USP42-NF 37 Pyrogen Test, Ethylene Oxide(EO) residue test, Ethylene Oxide(EO) sterilization validation | - |
2. Sample size(s) used for the test set and the data provenance:
- Sample Size for Test Set: Not explicitly stated, but the "Simulated Clinical Study Summary" mentions a study "conducted as recommended in FDA guidance document for Industry and FDA Staff: Medical Devices with Sharps Injury Prevention Features." While the exact number of devices tested is not provided, the claim of "99% reliability of device activation is achievable" implies a statistically significant sample was used to arrive at this figure.
- Data Provenance: Not explicitly stated for specific test data, but the manufacturer is "Shantou Wealy Medical Instrument CO.,Ltd." located in Guangdong, China. The testing was conducted to international ISO standards.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- Not Applicable. This is a physical device; "ground truth" as it applies to AI/ML diagnostic or annotation data is not relevant here. Performance is measured against physical standards and functional requirements.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
- Not Applicable. This is a physical device. Adjudication methods are relevant for subjective interpretations of data, typically in diagnostic imaging or clinical assessments, usually involving multiple human readers. Here, performance is based on objective lab measurements and functional tests.
5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
- Not Applicable. This is a physical device and involves no human "readers" or AI assistance. The "Simulated Clinical Study" refers to evaluating the sharps injury prevention feature, not an AI-assisted diagnostic task.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- Not Applicable. This is a physical device. There is no algorithm to run in a standalone fashion.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
- Not Applicable. For this physical device, "ground truth" is established by the specifications of the relevant ISO standards (e.g., a certain force must be applied, there should be no leakage, specific dimensions are met, activation must occur). The "99% reliability of device activation" from the simulated clinical study would be considered a performance outcome, not a "ground truth" in the AI/ML sense.
8. The sample size for the training set:
- Not Applicable. This is a physical device; there is no AI/ML training set.
9. How the ground truth for the training set was established:
- Not Applicable. This is a physical device; there is no AI/ML training set or associated ground truth.
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(401 days)
Shantou Wealy Medical Instrument CO.,Ltd
Ask a specific question about this device
(260 days)
Shantou Wealy Medical Instrument Co., Ltd.
The ENFit® Reusable Enteral Syringe is indicated for use as a dispenser, a measuring device and a fluid transfer device. It is used to deliver fluids into the body orally or enterally. It is intended to be used multiple times in non-clinical settings by users ranging from clinicians to laypersons in all age groups. The device is indicated for single patient use only.
The proposed device with Enfit® connector (1ml-60ml) are standard piston style syringes consisting of syringe barrel with integral EnFit syringe tip, syringe plunger and ring type piston. The proposed device are supplied non-sterile, and reusable. The sizes rang from 1ml to 60ml nominal capacity. The integral syringe tip is a female ENFit connector which is compatible only with enteral access devices or accessories having ENFit compliant or compatible male connectors to form a dedicated system that prevents wrong-route administration of fluids.
This is a 510(k) summary for a medical device (ENFit Reusable Enteral Syringe). 510(k) submissions typically demonstrate substantial equivalence to a predicate device through non-clinical testing, rather than extensive clinical efficacy studies with acceptance criteria in the manner of AI/software devices. Therefore, the information requested in the prompt, especially related to AI-specific metrics, reader studies, and ground truth establishment, is not applicable or present in this document.
However, I can extract the non-clinical tests performed and mention that these tests serve as the "acceptance criteria" for demonstrating substantial equivalence for this type of device.
1. A table of acceptance criteria and the reported device performance
The document lists various non-clinical tests performed to verify that the proposed device met design specifications and was substantially equivalent to the predicate device. These tests, and the implication that the device met their requirements, serve as the "reported device performance" and "acceptance criteria" for a 510(k) submission. No specific numerical thresholds are provided in this summary, but the successful completion of these tests indicates compliance.
Acceptance Criteria (Non-Clinical Tests Conducted) | Reported Device Performance |
---|---|
A. Finished Device (Performance Testing per ISO 7886-2:2020) | |
Risk management report in accordance with ISO 14971:2007 | Met (implied by conclusion of SE) |
Usability testing for ENFit Reusable Enteral Syringe (human factor and usability validation) | Met (implied by conclusion of SE) |
Appearance | Met (implied by conclusion of SE) |
Pump Force | Met (implied by conclusion of SE) |
Short-term Flow Rate Error | Met (implied by conclusion of SE) |
Syringe Compliance | Met (implied by conclusion of SE) |
Syringe Design critical dimension | Met (implied by conclusion of SE) |
B. Reusability | |
Cleaning Instructions Validation and Use Cycle Parameters Study | Met (implied by conclusion of SE) |
C. Biocompatibility | |
ISO 10993-5:2009 (Tests for Vitro Cytotoxicity) | No Cytotoxicity (explicitly stated in comparison table, and implied by conclusion of SE) |
ISO 10993-10:2010 (Tests for irritation and skin sensitization) | No Irritation and Sensitization (explicitly stated in comparison table, and implied by conclusion of SE) |
ISO 10993-11:2017 (Tests for systemic toxicity) | No Acute Toxicity (explicitly stated in comparison table, and implied by conclusion of SE) |
D. Shelf Life | |
Package verification test report | Met (implied by conclusion of SE) |
Bench test after real-time aging (ISO 80369-3:2016) | |
Fluid Leakage | Met (implied by conclusion of SE) |
Sub-atmospheric Pressure Air Leakage | Met (implied by conclusion of SE) |
Stress Cracking | Met (implied by conclusion of SE) |
Resistance to Separation from Axial Load | Met (implied by conclusion of SE) |
Resistance to Separation from Unscrewing | Met (implied by conclusion of SE) |
Resistance to Overriding | Met (implied by conclusion of SE) |
Disconnection by Unscrewing | Met (implied by conclusion of SE) |
Bench test after real-time aging (ISO 7886-1:2017) | |
Appearance | Met (implied by conclusion of SE) |
Overall Length of Scale to Nominal Capacity Line | Met (implied by conclusion of SE) |
Push-button Distance | Met (implied by conclusion of SE) |
Force Required to Operate Plunger | Met (implied by conclusion of SE) |
Freedom from Air and Liquid Leakage past Piston | Met (implied by conclusion of SE) |
Limits for Acidity or Alkalinity | Met (implied by conclusion of SE) |
Limits for Extractable Metals | Met (implied by conclusion of SE) |
Tolerance on Graduated Capacity | Met (implied by conclusion of SE) |
Maximum Dead Space | Met (implied by conclusion of SE) |
E. Finished Device Performance Test (not related to aging) | |
Critical Dimension verification | Met (implied by conclusion of SE) |
Ink Adhesion | Met (implied by conclusion of SE) |
Bench test (ISO 80369-3:2016) | (These are repeated from the "after real-time aging" section, but without the "after real-time aging" qualifier, suggesting they are also tested in the non-aged state.) |
Fluid Leakage | Met (implied by conclusion of SE) |
Sub-atmospheric Pressure Air Leakage | Met (implied by conclusion of SE) |
Stress Cracking | Met (implied by conclusion of SE) |
Resistance to Separation from Axial Load | Met (implied by conclusion of SE) |
Resistance to Separation from Unscrewing | Met (implied by conclusion of SE) |
Resistance to Overriding | Met (implied by conclusion of SE) |
Disconnection by Unscrewing | Met (implied by conclusion of SE) |
Bench test (ISO 7886-1:2017) | (These are repeated from the "after real-time aging" section, but without the "after real-time aging" qualifier, suggesting they are also tested in the non-aged state.) |
Appearance | Met (implied by conclusion of SE) |
Overall Length of Scale to Nominal Capacity Line | Met (implied by conclusion of SE) |
Push-button Distance | Met (implied by conclusion of SE) |
Force Required to Operate Plunger | Met (implied by conclusion of SE) |
Freedom from Air and Liquid Leakage past Piston | Met (implied by conclusion of SE) |
Limits for Acidity or Alkalinity | Met (implied by conclusion of SE) |
Limits for Extractable Metals | Met (implied by conclusion of SE) |
Tolerance on Graduated Capacity | Met (implied by conclusion of SE) |
Maximum Dead Space | Met (implied by conclusion of SE) |
2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
The document does not specify the sample sizes for each non-clinical test conducted. It states that "Non-clinical tests were conducted to verify that the proposed device met all design specifications." The data provenance (country of origin, retrospective/prospective) is not mentioned, as these are material performance tests rather than clinical data.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
This is a physical medical device (syringe), not an AI/software device that requires expert ground truth for classification or diagnosis. Therefore, this information is not applicable and not present in the document.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable, as this is not an AI/software device or a study involving human interpretation with adjudication.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This is a physical medical device. No MRMC study was conducted or reported.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is a physical medical device, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
For these physical device tests, the "ground truth" is defined by the established industry standards (e.g., ISO 14971, ISO 7886-2, ISO 10993 series, ISO 80369-3) and pre-defined specifications for device performance (e.g., freedom from leakage, specific dimensions, resistance to force). The device's performance against these verifiable physical and chemical metrics serves as the ground truth.
8. The sample size for the training set
Not applicable. This is a physical medical device, not an AI/software device requiring a training set.
9. How the ground truth for the training set was established
Not applicable.
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(221 days)
Shantou Wealy Medical Instrument Co., Ltd.
Wealy ENFit® Disposable Enteral Syringe is indicated for use as a dispenser, a measuring device, and a fluid transfer device. It is used to deliver fluids into the gastrointestinal system of a patient who is physically unable to eat and swallow. The enteral syringes are intended to be used in clinical or home care setting by users ranging from laypersons (under the supervision of a clinician) to clinicians, in all age groups.
The proposed device is a disposable enteral feeding syringe provided in a variety of sizes from 1ml~100ml. This device incorporates a female ENFit® connector for connection to an enteral access device with male ENFit® connector. The proposed syringe is sterilized by Ethylene Oxide Gas to achieve a SAL of 10 ° and supplied sterility maintenance package which could maintain the sterility of the device during the shelf life of three years.
The provided document is a 510(k) summary for the ENFit® Disposable Enteral Syringe. It focuses on demonstrating substantial equivalence to a predicate device rather than presenting a de novo study with specific acceptance criteria and detailed performance of an AI-powered diagnostic device. Therefore, many of the requested categories (expert ground truth, MRMC study, training set details) are not applicable as this is a medical device for fluid delivery, not an AI diagnostic.
However, I can extract the relevant information regarding acceptance criteria and performance based on the non-clinical tests described.
Here's a breakdown of the information that can be extracted from the provided text:
1. A table of acceptance criteria and the reported device performance
The document lists various tests based on international standards (ISO, ASTM, USP). The reported performance is generally stated as "The testing demonstrates the proposed devices conform to the requirements" or "Conforms to the requirement of [standard]". Specific quantitative acceptance criteria are given by referencing clauses within these standards, implying that the device met those quantitative values.
Acceptance Criteria Category (Referenced Standard/Clause) | Reported Device Performance |
---|---|
ISO 80369-3:2016 (Connectors for enteral applications) & ISO 80369-20:2015 (Common test methods): | The testing demonstrates the proposed devices conform to the requirements of ISO80369-3:2016. |
Fluid Leakage (Annex B) | Conforms |
Sub-atmospheric pressure Air Leakage (Annex D) | Conforms |
Stress Cracking (Annex E) | Conforms |
Resistance to separation from axial load (Annex F) | Conforms |
Resistance to separation from unscrewing (Annex G) | Conforms |
Resistance to overriding (Annex H) | Conforms |
Disconnection by unscrewing (Annex I) | Conforms |
ISO 7886-1:2017 (Sterile hypodermic syringe for single use): | The testing demonstrates the proposed devices conform to the requirements of ISO 7886-1:2017. |
Appearance (Clause 5) | Conforms |
Overall Length of Scale to Nominal Capacity Line (Clause 9.3) | Conforms |
Push-button Distance (Clause 11) | Conforms |
Force to Operate the Plunger (Clause 13.3) | Conforms |
Freedom from air and liquid leakage past piston (Clause 13.2) | Conforms |
Limits for Acidity or Alkalinity (Clause 6.2) | Conforms |
Limits for Extractable Metals (Clause 6.3) | Conforms |
Tolerance on graduated capacity (Clause 8) | Conforms |
Dead Space (Clause 13.1) | Conforms |
Lubricant (Clause 7) | Conforms |
Cleanliness (Clause 5) | Conforms |
Graduated Scale (Clause 9) | Conforms (Implied, listed under ISO 7886-1:2017 tests) |
Barrel (Clause 11) | Conforms (Implied, listed under ISO 7886-1:2017 tests) |
Piston/Plunger Assembly (Clause 13) | Conforms (Implied, listed under ISO 7886-1:2017 tests) |
Biocompatibility Standards (ISO 10993 series): | Conforms to the requirement of ISO 10993 series Standards. No Cytotoxicity, No Irritation to Skin, No significant evidence of sensitization. Biocompatibility testing has demonstrated the biological safety. |
ISO 10993-5:2009 (Vitro Cytotoxicity) | Conforms |
ISO 10993-10:2010 (Irritation and skin sensitization) | Conforms |
ISO 10993-7:2008 (Ethylene oxide sterilization residuals) | Conforms |
ISO 10993-11:2017 (Systemic toxicity) | Conforms |
Other Tests: | |
ASTM F 88/F88M-09 (Seal strength of flexible barrier materials) | Conforms |
USP38-NF33 (Bacterial Endotoxins Limit) | Conforms |
Product performance after Real-time Aging test | Evaluated properties after aging in support of labeling. |
Package Integrity after Accelerated Aging test | Evaluated properties after aging in support of labeling. |
Sterilization (Ethylene Oxide Gas) | Achieves SAL of 10^-6^ (for 3-year shelf life) |
2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
The document does not explicitly state the sample sizes used for each specific test in the non-clinical performance testing. It also does not specify the country of origin of the data (beyond the manufacturer being in China) or whether it was retrospective or prospective, as these are non-clinical hardware tests.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
Not applicable. This device is an enteral syringe for fluid delivery, not a diagnostic device requiring expert interpretation for ground truth.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable. This is not a diagnostic device involving expert adjudication.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This device is not an AI diagnostic or image analysis tool, so an MRMC study is irrelevant.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This device does not involve an algorithm or AI.
7. The type of ground truth used (expert concensus, pathology, outcomes data, etc)
For a medical device like a syringe, "ground truth" is established by adherence to recognized international performance standards (ISO, ASTM, USP). For example, the "ground truth" for fluid leakage would be the acceptable limits defined in ISO 80369-3, and the device passing means it met those objective, standardized measures. For biocompatibility, the ground truth is defined by the toxicological profiles and testing methods in the ISO 10993 series.
8. The sample size for the training set
Not applicable. This device does not use machine learning or AI, and therefore does not have a "training set."
9. How the ground truth for the training set was established
Not applicable, as there is no training set for this type of device.
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(153 days)
SHANTOU WEALY MEDICAL INSTRUMENT CO., LTD.
The Automatically Retractable Safety Syringes with Fixed Needle (Iml, 3ml, 10ml with 30G, 29G, 27G, 26G, 25G, 24G, 23G, 22G, 21G, or 20G) is a sterile, single-use, disposable and non-reusable, retractable safety syringe which is intended to provide a safe and reliable method for intramuscular and subcutaneous injection of medication into a patient.
The Automatically Retractable Safety Syringes with Fixed Needle devices are piston syringes, intended for medical purposes and consist of a calibrated hollow barrel and a movable plunger. The syringe works like a conventional hypodermic syringe except that the contaminated needle is retracted inside the syringe immediately after patient injection. The needle retracting mechanism is activated by a spring action mechanism after injection is completed. The exposed needle remains safely inside the empty syringe barrel for disposal. The Automatically Retractable Safety Syringes with Fixed Needle are sterile, single use, disposable and non-reusable.
This document is a 510(k) premarket notification for an "Automatically Retractable Safety Syringe with Fixed Needle". It is primarily focused on demonstrating substantial equivalence to a predicate device rather than presenting a study of the device's performance against specific acceptance criteria in the context of an AI/algorithm-driven device.
Therefore, many of the requested categories related to AI/algorithm performance studies (like sample size for test set, number of experts, adjudication method, MRMC studies, standalone performance, training set details) are not applicable to this type of regulatory submission for a physical medical device.
However, I can extract information related to "acceptance criteria" through the lens of performance testing conducted to show substantial equivalence.
Here's a breakdown of the available information:
1. Table of acceptance criteria and the reported device performance
The document does not provide a table of explicit, quantitative "acceptance criteria" and their corresponding "reported device performance" values in the format typically seen for algorithm validation. Instead, it refers to general performance testing to demonstrate substantial equivalence.
Acceptance Criteria Category (Implied) | Reported Device Performance |
---|---|
Design Verification | Test results concluded that the modified device passed appropriately. |
Design Validation | Test results concluded that the modified device passed appropriately. |
Biocompatibility | Test results concluded that the modified device passed appropriately. |
Sterilization | Test results concluded that the modified device passed appropriately. |
Substantial Equivalence | Product performance is substantially equivalent to the predicate device due to no changes in product performance specifications or device functional technology. |
Explanation of "Acceptance Criteria" in this context: For a physical medical device like a syringe seeking 510(k) clearance, "acceptance criteria" are typically defined by recognized standards (e.g., ISO standards for syringes, biocompatibility standards) and the internal design specifications of the manufacturer. The document states that testing was done "appropriately for design verification, design validation, biocompatibility and sterilization," implying that the device met these established criteria without specifying the exact numerical thresholds.
2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
- Sample Size for Test Set: Not specified in the document. The document mentions "performance testing" but does not detail the number of units tested.
- Data Provenance: Not specified. It's likely the testing was conducted by the manufacturer, Shantou Wealy Medical Instrument Co. Ltd, in China, given their location. The nature of the testing (design verification, biocompatibility, etc.) suggests it would be prospective testing of newly manufactured devices.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
Not applicable. This device is a physical medical instrument, not an AI/algorithm-driven diagnostic device that would require expert-established ground truth.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable. This is not an AI/algorithm study requiring adjudication of diagnostic outputs.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This is not an AI/algorithm-driven device.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is a physical device, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
Not applicable in the AI/algorithm sense. For a physical device, "ground truth" would be established by objective measurements against engineering specifications and relevant ISO/ASTM standards (e.g., fluid delivery accuracy, plunger force, needle retraction force, material biocompatibility test results). The document refers to "test results" concluding the device passed these standards.
8. The sample size for the training set
Not applicable. There is no AI/algorithm training set for this physical device.
9. How the ground truth for the training set was established
Not applicable. There is no AI/algorithm training set for this physical device.
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(81 days)
SHANTOU WEALY MEDICAL INSTRUMENT CO., LTD.
Automatically Retractable Safety Syringe (with fixed needle) (5cc/ml 22×1-1/4) is a sterile, single-use, disposable and non-reusable, retractable safety syringe which is intended to provide a safe and reliable method for intramuscular and subcutaneous injection of medication into a patient.
The Automatically Retractable Safety Syringe (with fixed needle) 5cc/ml 22×11/4 is a piston syringe. The device is intended for medical purposes and consists of a calibrated hollow barrel and a movable plunger. At one end of the barrel there is a male connector (nozzle) for fitting the female connector (hub) of a hypodermic single lumen needle. The device is used to inject fluids into the body. Automatically Retractable Safety Syringe (with fixed needle) (5cc/ml 22×11/4") works like a conventional hypodermic syringe except for its ability to retract the contaminated needle inside of the syringe immediately after patient injection. Needle retraction is activated by the syringe user. The needle retracting mechanism is activated by a spring action mechanism after injection is completed, while the exposed needle remains safety inside the empty syringe barrel for disposal.
The provided document describes a 510(k) premarket notification for an Automatically Retractable Safety Syringe. It focuses on demonstrating substantial equivalence to a predicate device rather than presenting a standalone study with acceptance criteria for device performance in the way typically seen for diagnostic algorithms.
Therefore, the requested information elements related to specific performance metrics (e.g., sensitivity, specificity), sample sizes for test/training sets, experts for ground truth, adjudication methods, MRMC studies, and ground truth types are not applicable to this document's content.
However, I can extract the acceptance criteria and a summary of how the device meets them based on the equivalence testing performed to satisfy the 510(k) submission.
1. A table of acceptance criteria and the reported device performance
The acceptance criteria are implied by the comparison to the predicate device and relevant industry standards. The reported device performance is that it meets these criteria, demonstrating equivalence.
Acceptance Criteria (Implied) | Reported Device Performance |
---|---|
Mechanical/Physical Performance: | |
Delivery Accuracy (per ISO 7886-1:1993/Corrigendum 1:1995) | Conforms to ISO 7886-1:1993/Corrigendum 1:1995 |
Needle Cover Strength ( |
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