Reusable optical fiber connector adapter with optical barrier

• US 5,452,391 A
• Filed: 06/22/1994
• Issued: 09/19/1995
• Est. Priority Date: 06/22/1994
• Status: Expired due to Term

• Current Assignee: Xintec Corporation
• Original Assignee: Xintec Corporation
• Inventors: Ngai, Kwok H., Chou, Marilyn M., Yu, Ken T., Yu, King J. J.
• Primary Examiner(s): Lee, John D.
• Application Number:
  US08/264,079
• Time in Patent Office: 454 Days
• Field of Search: 385/31, 385/38, 385/53, 385/60, 385/76-78, 385/86-88,92, 385/117-119, 385/123, 385/125, 385/147, 385/902
• US Class Current: 385/92
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00482 with a code
• CPC Class Codes: A61B 2018/00172 Connectors and adapters therefor
• CPC Class Codes: G02B 2006/4297 having protection means, e.g. protecting humans against accidental exposure to harmful laser radiation
• CPC Class Codes: G02B 6/381 of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
• CPC Class Codes: G02B 6/4296 coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
• CPC Class Codes: Y10S 385/902 Nonbundle fiberscope devices

Abstract

A reusable connector adapter for coupling a fiber optic laser delivery device with a laser source having a laser energy output port. The adapter allows the use of a variety of different laser sources with a variety of different fiber optic laser delivery devices. The adapter maintains the fiber optic laser delivery device adjacent to the laser energy output port such that the laser energy to be transmitted is communicated efficiently to the fiber optic laser delivery device. The adapter further comprises a laser interlock deactivation means such that if a laser source has a mechanical, electrical or optical interlock system, the adapter will function to deactivate the interlock system. Furthermore, the adapter also comprises an optical barrier to prevent the unintended transmission of laser energy when, for example, the fiber optic laser delivery device has not been installed or has not been installed properly.

Claims

1. A reusable connector adapter for coupling a laser source to a fiber optic laser delivery device, the laser source having an output port for transmitting laser energy, the laser source having a laser interlock for preventing the undesired transmission of laser energy unless and until such time as said interlock is deactivated, said laser interlock requiring an electrical signature generated by an electrical signature generating circuit for deactivation of said laser interlock, the fiber optic laser delivery device having a laser receiving end with a fiber connector at said laser receiving end, said fiber optic laser delivery device further having a fiber optic waveguide, said reusable connector adapter comprising:

a connector plug portion, said connector plug portion having a proximal end precisely shaped so as to couple efficiently with said laser source, said proximal end of said connector plug portion having a laser source attachment means such that said connector plug portion can be securely maintained adjacent to said output port of said laser source in an operative position, said connector plug portion further having a distal end, said connector plug portion further having a central hollow body portion intermediate said proximal end and said distal end for receiving and containing said fiber connector within said central hollow body portion in efficient optical communication with said laser source, said connector plug portion further having a laser interlock deactivation means, said laser interlock deactivation means comprising an electrical signature generating circuit;

a fiber optic laser delivery device securing portion for removably maintaining and securing said fiber optic laser delivery device within said central hollow body portion of said connector plug portion; and

an optical barrier for preventing said laser energy from being transmitted, said optical barrier comprised of an optically opaque material, said optical barrier preventing said laser energy from being transmitted unless a fiber optic laser delivery device is properly installed within said reusable connector adapter.

2. The invention of claim 1 wherein said optical barrier is mounted within said central hollow body portion of said connector plug portion such that upon insertion of the fiber optic laser delivery device into the reusable connector adapter, the optical barrier is removed from the path of transmission of laser energy.

3. The invention of claim 1 wherein said optical barrier is adjacent said proximal end of said connector plug portion.

4. The invention of claim 1 wherein said optical barrier is adjacent said fiber optic laser delivery device securing portion of said reusable connector adapter.

5. The invention of claim 1 wherein said optical barrier is pivotally mounted on a spring member.

6. The invention of claim 1 wherein said optical barrier is mounted within said central hollow body portion of said connector plug portion adjacent to said distal end of said connector plug portion.

7. The invention of claim 1 wherein said laser interlock system requires a mechanical or electrical contact between said proximal end of said connector plug portion and said output port of said laser source for deactivation, and said laser interlock deactivation means comprises a contacting element.

8. The invention of claim 7 wherein said contacting element is retractable.

9. The invention of claim 8 wherein said retractable contacting element is in a retracted position in the absence of said fiber optic laser delivery device and in an extended position when said fiber connector of said fiber optic laser delivery device is received within said connector plug portion, whereby when said retractable element is extended, said contacting element is in electrical, mechanical or optical contact with said output port of said laser source.

10. The invention of claim 1 wherein said fiber optic laser delivery device securing portion comprises an engagement means for coupling said fiber optic laser delivery device securing portion to said connector plug portion thereby maintaining said fiber optic laser delivery device within said central hollow body portion.

11. The invention of claim 10 wherein said engagement means comprises a biasing element for maintaining said fiber optic laser delivery device within said central hollow body portion biased between said connector plug portion and said fiber optic laser delivery device securing portion.

12. A reusable connector adapter for coupling a laser source to a fiber optic laser delivery device, the laser source having an output port for transmitting laser energy, the laser source having a laser interlock for preventing the undesired transmission of laser energy unless and until such time as the interlock is deactivated, the laser interlock comprising an optical switch for deactivation of the laser interlock, the fiber optic laser delivery device having a laser receiving end with a fiber connector at the laser receiving end, the fiber optic laser delivery device further having a fiber optic waveguide, the reusable connector adapter comprising:

a connector plug portion, the connector plug portion having a proximal end precisely shaped so as to couple efficiently with the laser source, the proximal end of the connector plug portion having a laser source attachment means such that the connector plug portion can be securely maintained adjacent to the output port of the laser source in an operative position, the connector plug portion further having a distal end, the connector plug portion further having a central hollow body portion intermediate the proximal end and the distal end for receiving and containing the fiber connector within the central hollow body portion in efficient optical communication with the laser source, the connector plug portion further having a laser interlock deactivation means, the laser interlock deactivation means supplying an optical signal such that the laser source interlock is deactivated;

a fiber optic laser delivery device securing portion for removably maintaining and securing the fiber optic laser delivery device within the central hollow body portion of the connector plug portion; and

an optical barrier for preventing the laser energy from being transmitted, the optical barrier comprised of an optically opaque material, the optical barrier preventing the laser energy from being transmitted unless a fiber optic laser delivery device is properly installed within the reusable connector adapter.

13. The invention of claim 12 wherein the optical barrier is mounted within the central hollow body portion of the connector plug portion such that upon insertion of the fiber optic laser delivery device into the reusable connector adapter, the optical barrier is removed from the path of transmission of laser energy.

14. The invention of claim 12 wherein the optical barrier is adjacent the proximal end of the connector plug portion.

15. The invention of claim 12 wherein the optical barrier is adjacent the fiber optic laser delivery device securing portion of the reusable connector adapter.

16. The invention of claim 12 wherein the optical barrier is pivotally mounted on a spring member.

17. The invention of claim 12 wherein the optical barrier is mounted within the central hollow body portion of the connector plug portion adjacent to the distal end of the connector plug portion.

18. The invention of claim 12 wherein the laser interlock system requires a mechanical or electrical contact between the proximal end of the connector plug portion and the output port of the laser source for deactivation, and the laser interlock deactivation means comprises a contacting element.

19. The invention of claim 18 wherein the contacting element is retractable.

20. The invention of claim 19 wherein the retractable contacting element is in a retracted position in the absence of the fiber optic laser delivery device and in an extended position when the fiber connector of the fiber optic laser delivery device is received within the connector plug portion, whereby when the retractable element is extended, the contacting element is in electrical, mechanical or optical contact with the output port of the laser source.

21. The invention of claim 12 wherein the fiber optic laser delivery device securing portion comprises an engagement means for coupling the fiber optic laser delivery device securing portion to the connector plug portion thereby maintaining the fiber optic laser delivery device within the central hollow body portion.

22. The invention of claim 21 wherein the engagement means comprises a biasing element for maintaining the fiber optic laser delivery device within the central hollow body portion biased between the connector plug portion and the fiber optic laser delivery device securing portion.

23. A reusable optical fiber connector adapter for coupling a laser source and a fiber optic laser delivery device, the laser source having an output port for transmitting laser energy and having a laser interlock for preventing the undesired transmission of laser energy unless and until such time as the interlock is deactivated, the laser interlock comprising control circuitry to block the production of a laser beam by the laser source and further comprising a mechanical switch for deactivation of the laser interlock, the fiber optic laser delivery device having a fiber optic waveguide and having a laser receiving end with a fiber, connector at the laser receiving end, the reusable connector adapter comprising:

a connector plug portion, the connector plug portion having a proximal end with a predetermined shape to optically couple with the output port of the laser source, the proximal end of the connector plug portion having a laser source output port attachment to securely maintain the connector plug portion in precise alignment adjacent to the output port of the laser source in an operative position, the connector plug portion further having a distal end, the connector plug portion further having a central hollow body portion intermediate the proximal end and the distal end for receiving and containing the fiber connector within the central hollow body portion in efficient optical communication with the laser source, the connector plug portion further having a laser interlock deactivator, whereby the laser interlock deactivator acts upon the interlock mechanical switch thereby causing the control circuitry to deactivate the interlock and permit the laser source to produce laser energy when the adapter connector is coupled to the laser source;

a fiber optic laser delivery device securing portion for removably maintaining and securing the fiber optic laser delivery device within the central hollow body portion of the connector plug portion; and

an optical barrier for preventing the laser energy from being transmitted, the optical barrier comprised of an optically opaque material, the optical barrier optically preventing the laser energy from being transmitted unless a fiber optic laser delivery device is properly installed within the reusable connector adapter.

24. The invention of claim 23 wherein the optical barrier is mounted within the central hollow body portion of the connector plug portion such that upon insertion of the fiber optic laser delivery device into the reusable connector adapter, the optical barrier is removed from the path of transmission of laser energy.

25. The invention of claim 23 wherein the optical barrier is adjacent the proximal end of the connector plug portion.

26. The invention of claim 23 wherein the optical barrier is adjacent the fiber optic laser delivery device securing portion of the reusable connector adapter.

27. The invention of claim 23 wherein the optical barrier is pivotally mounted on a spring member.

28. The invention of claim 23 wherein the optical barrier is mounted within the central hollow body portion of the connector plug portion adjacent to the distal end of the connector plug portion.

29. The invention of claim 23 wherein the laser interlock system requires a mechanical, electrical or optical contact between the proximal end of the connector plug portion and the output port of the laser source for deactivation, and the laser interlock deactivator comprises a contacting element.

30. The invention of claim 29 wherein the contacting element is retractable.

31. The invention of claim 30 wherein the retractable contacting element is in a retracted position in the absence of the fiber optic laser delivery device and in an extended position when the connector of the fiber optic laser delivery device is received within the connector plug portion, whereby when the retractable element is extended, the contacting element is in mechanical, electrical or optical contact with the output port of the laser source.

32. The invention of claim 23 wherein the fiber optic laser delivery device securing portion comprises an engagement means for coupling the fiber optic laser delivery device securing portion to the connector plug portion thereby maintaining the fiber optic laser delivery device within the central hollow body portion.

33. The invention of claim 32 wherein the engagement means comprises a biasing element for maintaining the fiber optic laser delivery device within the central hollow body portion biased between the connector plug portion and the fiber optic laser delivery device securing portion.