Replaceable LED illumination assembly for medical instruments

• US 20110054263A1
• Filed: 08/28/2010
• Published: 03/03/2011
• Est. Priority Date: 08/28/2009
• Status: Abandoned Application

• Current Assignee: Cheng-Hsi Miao, Jim-Son Chou
• Original Assignee: Cheng-Hsi Miao, Jim-Son Chou
• Inventors: Miao, Cheng-Hsi, Chou, Jim-Son
• Application Number:
  US12/807,092
• Publication Number:
  US 20110054263A1
• Time in Patent Office: Days
• US Class Current: 600/249
• CPC Class Codes: A61B 1/06 with illuminating arrangements
• CPC Class Codes: A61B 1/0676 at distal tip of an endoscope
• CPC Class Codes: A61B 1/0684 using light emitting diodes [LED]
• CPC Class Codes: A61B 3/0008 provided with illuminating means A61B3/117 takes precedence; goniolenses used for laser treatment A61F9/009; illuminating means for optical instruments G02B27/00
• CPC Class Codes: F21V 29/71 using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A replaceable LED assembly for medical instruments and medical devices including at least one LED(light emitting diode) to be used with the medical instruments that are using incandescent lamps or xenon lamps as illumination source. This LED illumination assembly will also allow exchange of LED lamp'"'"'s without the use of heat, solder, mechanical tools or physical force beyond the use of hand pressure.

Claims

1. An illumination assembly suitable for a medical instrument for observing a target tissue comprising:

a releasable and removable LED lamp that includes at least one LED, said LED lamp is able to be fastened to and removed from a heat dissipation component;

an electrical conduction path to deliver the electricity from said instrument to the LED lamp while the LED lamp is assembled to a heat dissipation component or the body of said medical instrument; and

a heat dissipation component that dissipates the heat from said LED lamp while said LED lamp is assembled to said heat dissipation component or the body of said medical instrument; and

a mechanical adapter to accommodate said illumination assembly to the optical design and components that are used to condition the beam of said medical instrument.

2. An illumination assembly according to claim 1, wherein said LED comprising a groups of LED array'"'"'s.

3. An illumination assembly according to claim 2 wherein said LED array illuminates white lights.

4. An illumination assembly according to claim 2 wherein said LED array illuminates lights of certain wavelength range of the light spectrum.

5. An illumination assembly according to claim 1 wherein said electrical conduction path comprises at least two electrical connectors with one on said LED lamp and the other on said heat dissipation component to maintain the polarity of the electricity and to energize at least one LED or at least one LED array on said LED lamp, while said LED lamp is assembled to said heat dissipation component or the body of said medical instrument.

6. An illumination assembly according to claim 1 wherein said LED lamp comprises at least one hole with screw groove on the back of said LED lamp so said LED lamp may be fastened to said heat dissipation component using a corresponding screw that can be turned with hand while the electrical connector on said LED lamp can be connected to the electrical connector on said heat dissipation component.

7. An illumination assembly according to claim 1 wherein said LED lamp comprises at least one hole with screw groove on the back of said LED lamp so said LED lamp may be fastened to the body of said medical instrument using a corresponding screw that can be turned with hand while the electrical connector on said LED lamp can be attached to the electrical connector on the body of said medical instrument.

8. An illumination assembly according to claim 1 wherein said heat dissipation component comprising a group of metallic heat conducting and heat transfer elements.

9. An illumination assembly according to claim 1 wherein said heat dissipation component comprising a group of non-metallic heat conducting and heat transfer elements includes but not limited to graphite elements and ceramics elements containing Aluminum Oxide(Al₂O₃) and GaN.

10. An illumination assembly according to claim 1 wherein said heat dissipation component comprising a group of heat management elements that facilitates the heat transfer includes but not limited to at least two heat dissipation fins with desired space between them to maximize thermal energy transfer.

11. An illumination assembly according to claim 1 wherein said heat dissipation component includes at least part of the housing of said illumination assembly.

12. An illumination assembly according to claim 1 wherein said adapter comprises a group of mechanical interface that interconnect said heat dissipation component and the main body of the said medical instrument.

13. An illumination assembly according to claim 1 wherein said adapter comprises a group of optical elements of lens, filter and diffusers, that conditions the light for the use of the said medical instrument.

14. An illumination assembly according to claim 1 wherein said LED lamp comprises at least two LED'"'"'s so different color temperatures can be obtained by adjusting the electrical power that supplies to each LED of said LED lamp.

15. An illumination assembly according to claim 1 wherein said LED lamp comprises at least one thermal pad between the thermal interfaces of said LED lamp and said heating dissipation component, wherein the thermal pad is configured to minimize the thermal impedance between said LED lamp and said heating dissipation component'"'"'s.

16. A method for adapting a medical instrument so as to incorporate at least one releasable and removable LED lamp as an illumination source, said instrument including a power supply to energize the LED lamp and an optical system that is used to condition the illumination light, said method comprises:

detaching a releasable and removable housing of the illumination assembly;

removing said LED lamp from said instrument assembly;

mounting a desirable said LED lamp to said illumination assembly, including means for electrically interconnecting at least one LED and said power supply as well as means for mechanically and optically interconnecting said medical instrument without the use of heat, solder, mechanical tools or physical force beyond the use of hand pressure.

17. A method according to claim 16, said method including the use of a hand-turning screw to fasten desired said LED lamp onto said heat dissipation component and inserting the electrical connector on said LED lamp to the electrical connector on said heat dissipation component, in the same time, without the use of heat, solder, mechanical tools or physical force beyond the use of hand pressure.

18. A method according to claim 16, said method including unscrewing of a hand-turning screw on said LED lamp from said heat dissipation component and disconnecting the electrical connector on said LED lamp from the electrical connector on said heat dissipation component, in the same time, to remove said LED lamp from said heat dissipation component without the use of heat, solder, mechanical tools or physical force beyond the use of hand pressure.

19. A method according to claim 16, said method including the use of a hand-turning screw to fasten desired said LED lamp to the housing of said medical instrument and inserting the electrical connector on said LED lamp to the electrical connector on the housing of said medical instrument, in the same time, without the use of heat, solder, mechanical tools or physical force beyond the use of hand pressure.

20. A method according to claim 16, said method including unscrewing of a hand-turning screw on said LED lamp from the housing of said medical instrument and disconnecting the electrical connector on said LED lamp from the electrical connector on the housing of said medical instrument, in the same time, to remove said LED lamp from the housing of said medical instrument without the use of heat, solder, mechanical tools or physical force beyond the use of hand pressure.