Transponder housing and device to mark implements, such as surgical implements, and method of using same

• US 7,898,420 B2
• Filed: 03/11/2008
• Issued: 03/01/2011
• Est. Priority Date: 03/12/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: RF Surgical Systems, Incorporated (Medtronic Plc)
• Inventors: Blair, William A., Poirier, David A., Barnes, Bruce E.
• Primary Examiner(s): Wu; Daniel
• Assistant Examiner(s): Mortell; John F
• Application Number:
  US12/046,396
• Publication Number:
  US 20080238677A1
• Time in Patent Office: 1,085 Days
• Field of Search: 340/572.1, 340/572.9
• US Class Current: 340/572.1
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 90/90 Identification means for patients or instruments, e.g. tags
• CPC Class Codes: A61B 90/98 using electromagnetic means, e.g. transponders

Abstract

A transponder device and/or housing to mark a surgical implement, such as a metallic surgical instrument, is provided that comprises a non-elastic, preferably non-metallic, rigid transponder housing attachable to a portion of the surgical implement. The housing includes a transponder receiving cavity spaced at least 1 millimeter, and preferably at least 2 millimeters, from any portion of the surgical implement when the housing is attached to the surgical implement. The housing may be removably attached to the surgical implement or permanently attached. In use, a transponder is installed in the transponder receiving cavity. A method of detecting a transponder indicating the possible presence of a surgical implement is also provided.

Claims

1. A device to mark surgical implements, comprising:

a non-elastic rigid housing attachable to a portion of a surgical implement, the housing including a rigid shell having two body portions forming a receiving cavity sized and shaped to closely receive at least a portion of the surgical implement and a transponder receiving cavity within said rigid shell sized to receive a transponder, wherein the rigid shell fixedly spaces the transponder receiving cavity at least about 1 millimeter from any portion of the surgical implement when the housing is attached to the surgical implement.

2. The device of claim 1, further comprising:

the transponder, wherein the transponder is removably retained in the transponder receiving cavity.

3. The device of claim 1 wherein the housing is removably attachable to the portion of the surgical implement.

4. The device of claim 1, further comprising:

a detent mechanism that is integral to the housing to attach the housing to the portion of the surgical implement.

5. The device of claim 1 wherein the implement receiving cavity is an asymmetric passage.

6. The device of claim 1 wherein the rigid shell fixedly spaces the transponder receiving cavity at least about two millimeters from any portion of the surgical implement when the housing is attached to the surgical implement.

7. The device of claim 1 wherein the rigid shell of the housing has a coupling structure adapted to connect the two body portions together.

8. The device of claim 7 wherein the coupling structure is a snap.

9. The device of claim 7 wherein the coupling structure is a clip.

10. The device of claim 7 wherein the two body portions of the shell of the housing are connected by a hinge.

11. The device of claim 10 wherein the hinge is integral with the two body portions.

12. The device of claim 1 wherein the housing is composed of plastic, the plastic able to withstand multiple sterilizations in an autoclave.

13. The device of claim 1 wherein the housing is non-metallic.

14. A transponder device comprising:

a rigid housing having at least two distinct pieces, the housing removably attachable to a portion of a surgical implement by enclosing the portion of the surgical implement within an implement receiving cavity of the housing;

coupling means for coupling the at least two distinct pieces together to form a transponder receiving cavity and the implement receiving cavity therebetween; and

a wireless transponder received in the transponder receiving cavity.

15. The transponder device of claim 14 wherein at least one of the pieces of the housing is non-elastic.

16. The transponder device of claim 14 wherein at least one of the pieces of the housing is non-metallic.

17. The transponder device of claim 14 wherein the rigid housing fixedly spaces the wireless transponder at least about 1 millimeter from the surgical implement when attached to the portion of the surgical implement.

18. The transponder device of claim 17 wherein the rigid housing fixedly spaces the wireless transponder at least about 2 millimeters from the surgical implement when coupled to the surgical implement.

19. The transponder device of claim 14 wherein at least one piece of the housing is made of plastic, the plastic able to withstand multiple sterilizations in an autoclave.

20. The transponder device of claim 14, further comprising:

a detent mechanism that is integral to the housing to attach the housing to the portion of the surgical implement.

21. The transponder device of claim 14 wherein the implement receiving cavity of the housing is an asymmetric passage.

22. A surgical instrument comprising:

instrument means;

a handle connected to the instrument means;

a non-elastic rigid non-metallic housing removably attached to at least a portion of the handle, the housing having a two-piece body coupled together by coupling means to form a transponder receiving cavity and an implement receiving cavity therebetween; and

a wireless transponder enclosed within the transponder receiving cavity of the rigid housing wherein the rigid housing fixedly spaces the wireless transponder at least about 1 millimeter from the handle when the housing is clamped to a portion of the surgical implement with the portion received in the implement receiving cavity.

23. The surgical instrument of claim 22 wherein the instrument means is at least one of a cutting means, a grasping means, a clamping means, an access means, an injection/irrigation means, or a measurement means.

24. The surgical instrument of claim 22 wherein the coupling means is at least one of a snap, a strap, or a clip.

25. The surgical instrument of claim 22 wherein the rigid housing fixedly spaces the wireless transponder at least about 2 millimeters from the at least a portion of the handle.

26. The surgical instrument of claim 22 wherein the housing has an integral detent mechanism to attach the housing to the at least a portion of the handle.

27. The surgical instrument of claim 22 wherein the instrument means is metallic.