(161 days)
Xinfeng Heating lamp, including CQ-27, CQ-36 and CQ-55A, is an infrared lamp that emits the infrared spectrum to provide topical heating for the purpose of elevating tissue temperature, to temporarily increase local blood circulation, and to temporarily relieve minor muscle and joint pain and stiffness. The lamps may also help to relieve minor pain associated with muscle spasms, minor sprains and strains, and minor muscular back pain.
Xinfeng Heating Lamp, including 3 different models CQ-27, CQ-36 and CQ-55A, consists of heating head, swing arm, control box and pedestal with extension. It is used to provide topical heating to the body and is specially engineered using a plate. Model CQ-27 and CQ-36 have only one operating mode, while model CQ-55A has two operating modes. Emission spectrum ranges from 5 to 25 microns for models CQ-27, CQ-36 and state I of CQ-55A. Model CQ-55A also includes an additional operating state (State II) having an emission range of 2 to 50 microns. The emission heating plate shall be replaced after 1,000 hours of usage.
The provided documentation for the Xinfeng Heating Lamp does not contain information about specific acceptance criteria or a dedicated study proving the device meets those criteria in the context of clinical performance or effectiveness.
Instead, the submission focuses on demonstrating substantial equivalence to a predicate device (TDP CQ-27 Heat Lamp manufactured by Lhasa Medical, Inc.) based on:
- Intended Use: Both devices are infrared lamps for topical heating to relieve pain.
- Materials: Implied to be similar.
- Specifications: A direct comparison of various technical specifications is provided.
Therefore, many of the requested details, such as sample sizes, ground truth establishment, expert qualifications, and MRMC studies, are not available in this type of submission for a Class II medical device demonstrating substantial equivalence. These elements are typically found in clinical studies designed to prove efficacy or performance against defined endpoints, which is not the primary purpose of this 510(k) submission.
However, based on the provided tables comparing the new device to the predicate, we can infer some "acceptance criteria" by looking at where the new device's specifications are considered equivalent to or justify minor differences from the predicate.
Here's a breakdown of what can be extracted from the provided text according to your request:
1. Table of Acceptance Criteria and Reported Device Performance
Since this is a substantial equivalence submission, the "acceptance criteria" are implicitly defined by the predicate device's specifications. The "reported device performance" is the Xinfeng Heating Lamp's specifications. The goal is to show general equivalence or acceptable differences.
Table 1: Xinfeng Heating Lamp CQ-27 vs. Predicate (CQ-27)
| Item | Acceptance Criteria (Predicate Device) | Reported Device Performance (Xinfeng CQ-27) | Conformity / Justification |
|---|---|---|---|
| Components | Heating head, swing arm, control box, pedestal with extension | Heating head, swing arm, control box, pedestal with extension | Equivalent |
| Power Frequency | 50/60 Hz | 50/60 Hz | Equivalent |
| Power | $\leq 250 W$ | $\leq 250 W$ | Equivalent (within acceptable limits) |
| Spectrum Ranges | 2 to 50 microns | 5 to 25 microns | Different, but likely deemed acceptable if the therapeutic effect (topical heating) is maintained within safe parameters. The 5-25 micron range is still infrared. The submission implies that "All the technical data are tested according to GB 9706.1-1995 which is identical to IEC 60601-1," suggesting safety and performance testing for these ranges. |
| Warming Up Time | 15 minutes | 15 minutes | Equivalent |
| Total Working Hours | 1,200 to 1,500 hours | 1,000 hours | Lower working hours for the new device. This is a characteristic difference, not necessarily a failure of "acceptance criteria" but a specification. Users would replace the emission heating plate after 1,000 hours. |
| Operating Timer | Up to 60 minutes | Up to 60 minutes | Equivalent |
| Number of Fuse | 2 | 2 | Equivalent |
| Inner Cover Diameter | 12 cm | 12 cm | Equivalent |
| Number of Casters | 4 | 5 | Different, but this is an improvement in mobility or stability, not a failure. |
| Skin Temperature (°C) at 8" | 45°C | 45°C | Equivalent (at 8" distance) |
| Skin Temperature (°C) at 10" | 43°C | 43°C | Equivalent (at 10" distance) |
| Skin Temperature (°C) at 12" | 41°C | 41°C | Equivalent (at 12" distance) |
Table 2: Xinfeng Heating Lamp CQ-36 vs. Predicate (CQ-27)
| Item | Acceptance Criteria (Predicate Device) | Reported Device Performance (Xinfeng CQ-36) | Conformity / Justification |
|---|---|---|---|
| Components | heating head, swing arm, standard control box, pedestal with extension | heating head, swing arm, control box with digital display, pedestal with extension | Improved control box (digital display) is considered an acceptable difference/improvement. |
| Power Frequency | 50/60 Hz | 50/60 Hz | Equivalent |
| Power | $\leq 250 W$ | $\leq 250 W$ | Equivalent |
| Spectrum Ranges | 2 to 50 microns | 5 to 25 microns | Similar difference as CQ-27 model. |
| Warming Up Time | 15 minutes | 15 minutes | Equivalent |
| Total Working Hours | 1,200 to 1,500 hours | 1,000 hours | Similar difference as CQ-27 model. |
| Operating Timer | Up to 60 minutes | Up to 95 minutes | Increased operating timer is an improvement and considered acceptable. |
| Number of Fuse | 2 | 2 | Equivalent |
| Inner Cover Diameter | 12 cm | 16.6 cm | Larger inner cover diameter is a design difference, likely acceptable as it maintains the intended function. |
| Number of Casters | 4 | 5 | Similar difference as CQ-27 model. |
| Skin Temperature (°C) at 8" | 45°C | 44°C | Slightly lower temperature at 8", but within therapeutic range and deemed acceptable. |
| Skin Temperature (°C) at 10" | 43°C | 42°C | Slightly lower temperature at 10", but within therapeutic range and deemed acceptable. |
| Skin Temperature (°C) at 12" | 41°C | 40°C | Slightly lower temperature at 12", but within therapeutic range and deemed acceptable. |
Table 3: Xinfeng Heating Lamp CQ-55A vs. Predicate (CQ-27)
| Item | Acceptance Criteria (Predicate Device) | Reported Device Performance (Xinfeng CQ-55A) | Conformity / Justification |
|---|---|---|---|
| Components | heating head with one heating unit, swing arm, standard control box, pedestal with extension | heating head with three heating unit, swing arm, control box with digital display, pedestal with extension | Multiple heating units and digital display are design differences/improvements, considered acceptable. |
| Power Frequency | 50/60 Hz | 50/60 Hz | Equivalent |
| Power | $\leq 250 W$ | $\leq 280 W$ | Higher power for CQ-55A, likely due to three heating units. This is an increase, but the overall safety and performance (e.g., skin temperature) are evaluated. |
| Warming Up Time | 15 minutes | 15 minutes | Equivalent |
| Total Working Hours | 1,200 to 1,500 hours | 1,000 hours | Similar difference as other models. |
| Operating Timer | Up to 60 minutes | Up to 95 minutes | Similar improvement as CQ-36 model. |
| Number of heating head | 1 | 3 | Design difference/improvement. |
| Number of Fuse | 2 | 2 | Equivalent |
| Inner Cover Diameter | 12 cm | 8 cm | Smaller inner cover diameter is a design difference, likely acceptable. |
| Number of Casters | 4 | 5 | Similar difference as other models. |
| Spectrum Ranges (State I) | 2 to 50 microns | 5 to 25 microns | Similar difference as other models. |
| Skin Temp. State I (8") | 45°C | 44°C | Slightly lower temperature, but within therapeutic range and deemed acceptable. |
| Skin Temp. State I (10") | 43°C | 42°C | Slightly lower temperature, but within therapeutic range and deemed acceptable. |
| Skin Temp. State I (12") | 41°C | 41°C | Equivalent. |
| Spectrum Ranges (State II) | 2 to 50 microns | 2 to 50 microns | Equivalent. |
| Skin Temp. State II (8") | 45°C | 47°C* | Exceeds predicate's temperature at this distance. This is a critical finding. The note indicates a safety precaution: "*47°C exceeds the safe temperature range and that model CQ-55A should be positioned at least 10 inches from the body surface to be treated." This indicates a deviation from direct equivalence requiring a specific user instruction to ensure safety. |
| Skin Temp. State II (10") | 43°C | 44°C | Slightly higher temperature, but deemed acceptable with the caveat from the 8" distance. |
| Skin Temp. State II (12") | 41°C | 43°C | Slightly higher temperature, but deemed acceptable with the caveat from the 8" distance. |
2. Sample size used for the test set and the data provenance
- The document states: "All the technical data are tested according to GB 9706.1-1995 which is identical to IEC 60601-1". This indicates that electrical and safety performance tests were conducted according to recognized international standards.
- However, specific sample sizes for these tests (e.g., number of devices tested for each parameter like skin temperature, working hours, etc.) are not provided.
- The data provenance is from Chongqing Xinfeng Medical Instrument Co., Ltd., People's Republic of China, which is the manufacturer. The data would be considered prospective for the Xinfeng devices themselves, as they were tested to generate these specifications. The comparison point (predicate) is also based on its own specifications.
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/Not provided. This submission relies on engineering specifications and adherence to safety standards (IEC 60601-1) rather than clinical expert consensus or interpretation of medical images. The "ground truth" here is the measured physical properties and performance characteristics of the devices.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
- Not applicable/Not provided. Adjudication methods are typically used in studies involving subjective interpretation (e.g., imaging studies) or complex clinical endpoints, which is not the case here.
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 a heating lamp, not an AI-powered diagnostic tool. No MRMC study was conducted or is relevant for this type of device.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
- Not applicable. This device is a physical infrared lamp, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
- The "ground truth" for the performance data presented (e.g., power, temperature, working hours) would be objective physical measurements taken during engineering and quality control tests, following the principles outlined in international standards like IEC 60601-1.
8. The sample size for the training set
- Not applicable. This is not an AI/ML device, so there is no training set.
9. How the ground truth for the training set was established
- See point 8. Not applicable.
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Additional Information for Xinfeng Heating Lamp
510 (k) Premarket Notification Summary
Submitter
George Su Crosslinks International 1800 Century Park East, Suite 600 Los Angeles, CA 90067 USA
Tel: 310-229-5748 Fax: 310-388-1067 Email: crosslinks2000@aol.com
Manufacturer:
Chongqing Xinfeng Medical Instrument Co., Ltd. 12 Da Xi Gou Street 14-6 Hua Xin Tower Chongqing 400013 People's Republic of China
Tel: (86-23) 6361-7000 Fax: (86-23) 6360-3205 E-mail: wfs(@xf-tdp.com.cn
Sponsor of the 510(k) Submission:
Chongqing Xinfeng Medical Instrument Co., Ltd. 12 Da Xi Gou Street 14-6 Hua Xin Tower Chongqing 400013 People's Republic of China
Tel: (86-23) 6361-7000 Fax: (86-23) 6360-3205 E-mail: wfs@xf-tdp.com.cn
Device Name:
Proprietary Name: Xinfeng Lamp Common/Usual Name: Infrared Lamp Device Name: Infrared Lamp Product Code: ILY Classification: Class II
Predicate Device:
TDP CQ-27 Heat Lamp Establishment: LHASA Medical Inc.
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Additional Information for Xinfeng Heating Lamp
Regulation Number: 890.5500 Product Code: ILY 510(k) Number: K003538 Registration Number: 1222811 Owner/Operator Number: 9003816
Description of the Xinfeng Heating Lamps:
Xinfeng Heating Lamp, including 3 different models CQ-27, CQ-36 and CQ-55A, consists of heating head, swing arm, control box and pedestal with extension. It is used to provide topical heating to the body and is specially engineered using a plate. Model CQ-27 and CQ-36 have only one operating mode, while model CQ-55A has two operating modes. Emission spectrum ranges from 5 to 25 microns for models CQ-27, CQ-36 and state I of CQ-55A. Model CQ-55A also includes an additional operating state (State II) having an emission range of 2 to 50 microns. The emission heating plate shall be replaced after 1,000 hours of usage.
Indications for use
Xinfeng Heating Lamp, including 3 different models CQ-27, CQ-36 and CQ-55A, is an infrared lamp that emits the infrared spectrum to provide topical heating for the purpose of elevating tissue temperature, to temporarily increase local blood circulation, and to temporarily relieve minor muscle and joint pain and stiffness. The lamps may also help to relieve minor pain associated with muscle spasms, minor sprains and strains, and minor muscular back pain.
Substantial Equivalence Information
Xinfeng CQ-27, CQ-36 and CQ-55A Heating Lamps are generally equivalent to CQ-27 Heat Lamp (K003538) manufactured by Lhasa Medical, Inc. on label and labeling, materials used, specifications and intended use. All the technical data are tested according to GB 9706.1-1995 which is identical to IEC 60601-1
The equivalence information is focused on intended use, materials and specifications. The Xinfeng Heating lamps use 110V voltage, 5 casters and 2 fuses. The use age is 1000 hours and the skin temperature is at 40~45°C in a treatment distance from heating unit to treatment surface 8" to12" for models CQ-27, CQ-36 and state I of CQ-55A, but for state II operating mode of CQ-55A it is 10" to12".
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Additional Information for Xinfeng Heating Lamp
Table 1.
Predicate device: TDP CQ-27 Heat Lamp manufactured by Lhasa Medical, Inc.
The new device: Xinfeng Heating Lamp CQ-27
| Item | The predicate device | The new device | ||
|---|---|---|---|---|
| Components | heating head, swing arm, control box and pedestal with extension | heating head, swing arm, control box and pedestal with extension | ||
| Power Frequency | 50/60 Hz | 50/60 Hz | ||
| Power | $\leq 250 W$ | $\leq 250 W$ | ||
| Spectrum Ranges | 2 to 50 microns | 5 to 25 microns | ||
| Warming Up Time | 15 minutes | 15 minutes | ||
| Total WorkingHours | 1,200 to 1500 hours | 1,000 hours | ||
| Operating Timer | Up to 60 minutes | Up to 60 minutes | ||
| Number of Fuse | 2 | 2 | ||
| Inner CoverDiameter | 12 cm | 12 cm | ||
| Number of Casters | 4 | 5 | ||
| Skin Temperature(°C) | The distance from the lamp head and the result | |||
| 8"45°C | 10"43°C | 12"41°C | 8"45°C |
Table 2.
Predicate device: TDP CQ-27 Heat Lamp manufactured by Lhasa Medical, Inc. The new device: Xinfeng Heating Lamp CQ-36
| Item | The predicate device | The new device | |
|---|---|---|---|
| Components | heating headswing armstandard control boxpedestal with extension | heating headswing armcontrol box with digital displaypedestal with extension | |
| Power Frequency | 50/60 Hz | 50/60 Hz | |
| Power | $\leq 250 W$ | $\leq 250 W$ | |
| Spectrum Ranges | 2 to 50 microns | 5 to 25 microns | |
| Warming Up Time | 15 minutes | 15 minutes | |
| Total Working Hours | 1,200 to 1500 hours | 1,000 hours | |
| Operating Timer | Up to 60 minutes | Up to 95 minutes | |
| Number of Fuse | 2 | 2 | |
| Inner Cover Diameter | 12 cm | 16.6 cm | |
| Number of Casters | 4 | 5 | |
| Skin Temperature (°C) | The distance from the lamp head and the result | ||
| 8" | 10" | 12" | |
| 45°C | 43°C | 41°C | |
| 8" | 10" | 12" | |
| 44°C | 42°C | 40°C |
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Additional Information for Xinfeng Heating Lamp
Table 3.
Predicate device: TDP CQ-27 Heat Lamp manufactured by Lhasa Medical, Inc. The new device: Xinfeng Heating Lamp CQ-55A
| Item | The predicate device | The new device |
|---|---|---|
| Components | heating head with one heating unitswing armstandard control boxpedestal with extension | heating head with three heating unitswing armcontrol box with digital displaypedestal with extension |
| Power Frequency | 50/60 Hz | 50/60 Hz |
| Power | $\leq 250 W$ | $\leq 280 W$ |
| Warming Up Time | 15 minutes | 15 minutes |
| Total WorkingHours | 1,200 to 1500 hours | 1,000 hours |
| Operating Timer | Up to 60 minutes | Up to 95 minutes |
| Number ofheating head | 1 | 3 |
| Number of Fuse | 2 | 2 |
| Inner CoverDiameter | 12 cm | 8 cm |
| Number of Casters | 4 | 5 |
| Spectrum RangesState I | 2 to 50 microns | 5 to 25 microns | ||||
|---|---|---|---|---|---|---|
| Skin TemperatureState I(°C) | The distance from the lamp head and the result | |||||
| 8" | 10" | 12" | 8" | 10" | 12" | |
| 45°C | 43°C | 41°C | 44°C | 42°C | 41°C |
| Spectrum RangesState II | 2 to 50 microns | 2 to 50 microns | ||||
|---|---|---|---|---|---|---|
| Skin TemperatureState II | The distance from the lamp head and the result | |||||
| 8" | 10" | 12" | 8" | 10" | 12" | |
| (°C) | 45°C | 43°C | 41°C | 47°C* | 44°C | 43°C |
*47°C exceeds the safe temperature range and that model CQ-55A should be positioned at least 10 inches from the body surface to be treated.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
JUN 6 - 2005
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Chongqing Xinfeng Medical Instrument Company, Ltd. C/o Mr. George Su Crosslinks International, Inc. 1800 Century Park East, Suite 600 Century City, California 90067
Re: K043558
- K043338
Trade/Device Name: Xinfeng Heat Lamps, Models CQ-27, CQ-36, CQ-55A Regulation Number: 21 CFR 890.5500 Regulation Name: Infrared lamp Regulatory Class: II Product Code: ILY Dated: May 26, 2005 Received: May 26, 2005
Dear Mr. Su:
We have reviewed your Section 510(k) premarket notification of intent to market the device We have reviewed your Section 910(x) premained is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the encrosulty to regally manced provice Amendments, or to commerce prior to May 28, 1776, the enatified in accordance with the provisions of the Federal recognities (1)MAA devices that have been icclassince in acceracy in of a premarket approval application (PMA).
and Cosmetic Act (Act) that do not require approval of a premarket approval appli and Cosmelle Act (Act) that do not require approvine of the general controls provisions of the Act. The You may, therefore, market the device, belyer to the one of the only and registration, listing of general Controls provisions of the Procession, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it II your device is classince (secure) into existing major regulations affecting your device can
may be subject to such additional controls. Existing major research and like o may be subject to such additional bonnons. Title 21, Parts 800 to 898. In addition, FDA may be found in the Code of I casial Hegening your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean Please be advised that I DA 3 issualled of a backed on a complies with other requirements of the Act
that FDA has made a determination that your device complies with other re that I DA has made a decemination administered by other Federal agencies. You must of any Pederal Statutes and regulations daministers of 5 mot limited to: registration and issting (21 comply with an the Act 3 requirements, mercesses and actually of the requirements as set CFR Fart 807), adomig (21 OFR Part 820); and if applicable, the electronic forth in the quality systems (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2 – Mr. George Su
This letter will allow you to begin marketing your device as described in your Section 510(k) i his letter will anow you to oegin manceing your artial equivalence of your device to a legally premarket notheadon: "The FDA miaing of castion 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 If you desire specific advice for your ac-1100 cm on one one the regulation entitled,
contact the Office of Compliance at (240) 276-0120. Also, please note the regulation en Colliact the Office of Comphalled at (210) = 16 = 21 807.97). You may obtain Misoranding by reference to premailson ibilities under the Act from the Division of Small other general informational and Consumer Assistance at its toll-free number (800) 638-204 or Manufacturers, international and Oolisal http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Az. S. Rhodes
Miriam C. Provost, Ph.
Miriam C. Provost, Ph.D. Acting Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Ko455556
Additional Information for Xinfeng Heating Lamp
Indications for Use
510(k) Number (if known): _K043558
Infrared Lamp Device Name: _________________________________________________________________________________________________________________________________________________________________
Indications for Use:
Xinfeng Heating lamp, including CQ-27, CQ-36 and CQ-55A, is an infrared lamp that emits the infrared spectrum to provide topical heating for the purpose of
lamp that emits the infrared spectrum to provide topical heating and to lamp that emiss the mirated spectrain to from the reseal blood circulation, and to elevaling tissue temperature, to temporarily mercule stiffees. The lamps may also help
temporarily relieve minor muscle and joint pain and strains and strains, and temporarily relieve intor muscle and joint pain and strains and strains and strains, and minor muscular back pain.
Prescription Use _____________________________________________________________________________________________________________________________________________________________ (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use _ (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Hytk. Loodu
Division Sion-Division of General, Restorative, and Neurological Devices
KOYJ558 510(k) Number_
5
Page 1 of 1_
§ 890.5500 Infrared lamp.
(a)
Identification. An infrared lamp is a device intended for medical purposes that emits energy at infrared frequencies (approximately 700 nanometers to 50,000 nanometers) to provide topical heating.(b)
Classification. Class II (special controls). The device, when it is an infrared therapeutic heating lamp, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 890.9.