Telescoping probe

• US 5,505,710 A
• Filed: 08/22/1994
• Issued: 04/09/1996
• Est. Priority Date: 08/22/1994
• Status: Expired due to Term

• Current Assignee: Davol Incorporated (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Dorsey, James H. III
• Primary Examiner(s): Hirsch, Paul J.
• Application Number:
  US08/293,715
• Time in Patent Office: 596 Days
• Field of Search: 604/157, 604/158, 604/164, 604/165, 604/167, 604/256
• US Class Current: 604/158
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 2017/347 Locking means, e.g. for locking instrument in cannula
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 2025/0175 having telescopic features, interengaging nestable members movable in relations to one another
• CPC Class Codes: A61M 2025/0681 Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0075 Valve means
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters

Abstract

A telescoping surgical probe is disclosed which allows the user to accomplish various functions including several suction techniques and irrigation with a single surgical probe. The telescoping probe includes an inner cannula operatively associated with an outer cannula. The telescoping probe is used with a valve including trumpet valves.

Claims

1. A surgical probe for use with a valve, comprising:

an inner cannula having a first end and a second end and being operatively associated with said valve, said inner cannula also having an internal passageway extending therethrough from the first end to the second end; and

an outer cannula having a first end and a second end and being operatively associated with said inner cannula, said outer cannula also having an internal passageway extending therethrough from the first end to the second end of said outer cannula, at least a portion of said inner cannula disposed within the internal passageway of said outer cannula;

wherein either said inner cannula or said outer cannula is moved in relation with the other cannula to allow said probe to perform various suction and irrigation functions associated with laparascopic and endoscopic surgery.

2. A surgical probe for use with a valve, comprising:

an inner cannula having an inner probe shaft and an inner shaft housing, said inner probe shaft having a first end and a second end, said inner shaft housing having a first end and a second end, the first end of said inner probe shaft connected to the second end of said inner shaft housing, said first end of said inner shaft housing operatively associated with the valve; and

an outer cannula having an outer probe shaft and an outer shaft housing, said outer probe shaft having a first end and a second end, said outer shaft housing having a first end and a second end, the first end of said outer probe shaft connected to the second end of said outer shaft housing, at least a portion of said inner cannula disposed within said outer cannula;

wherein either said inner cannula or said outer cannula is moved in relation with the other cannula to allow said probe to perform various suction and irrigation functions associated with laparascopic and endoscopic surgery.

3. The surgical probe of claim 2 wherein said inner probe shaft defining a first internal passageway extending from the first end to the second end of said inner probe shaft, said inner shaft housing defining a first internal channel extending from the first end to the second end of said inner shaft housing, said first internal passageway communicating with said first internal channel when said inner probe shaft is connected to said inner shaft housing, said outer probe shaft defining a second internal passageway extending from the first end to the second end of said outer probe shaft, said outer shaft housing defining a second internal channel extending from the first end to the second end of said outer shaft housing, said second internal passageway communicating with said second internal channel when said outer probe shaft is connected to said outer shaft housing.

4. The surgical probe of claim 3 wherein said second internal passageway is sized larger in diameter than said inner probe shaft'"'"'s diameter and said second internal channel is sized larger in diameter than the second end of said inner shaft housing'"'"'s diameter.

5. The surgical probe of claim 2 further including means for retaining at least a portion of said inner probe shaft within said outer probe shaft.

6. The surgical probe of claim 5 wherein said means for retaining comprises a detent disposed at the second end of said inner shaft housing and a correspondingly shaped groove disposed within an inner surface of said outer shaft housing.

7. The surgical probe of claim 2 wherein said inner probe shaft having an inner surface and an outer surface and said outer probe shaft having an inner surface and an outer surface, said surgical probe further including means for sealing a space created between said inner surface of said outer probe shaft and said outer surface of said inner probe shaft when said inner probe shaft is received within said outer probe shaft.

8. The surgical probe of claim 7 wherein said means for sealing is an o-ring disposed along the outer surface of said inner probe shaft or disposed within said outer shaft housing.

9. The surgical probe of claim 2 further including means for providing a tension fit between said inner probe shaft and said outer probe shaft when said inner probe shaft is received within said outer probe shaft.

10. The surgical probe of claim 9 wherein said means for providing is a retaining ring disposed along an outer surface portion of said inner probe shaft or disposed within said outer shaft housing.

11. The surgical probe of claim 2, further including means for determining the position of said inner probe shaft with respect to said outer probe shaft.

12. The surgical probe of claim 11 wherein said means for determining includes at least one groove disposed within an inner surface of said outer shaft housing and a detent disposed at the second end of said inner shaft housing.

13. The surgical probe of claim 12 wherein each said groove corresponds to a specific position of said inner probe shaft with respect to said outer probe shaft.

14. The surgical probe of claim 2, further including means for positioning said inner probe shaft with respect to said outer probe shaft.

15. The surgical probe of claim 14 wherein said means for positioning comprises an elongated slot disposed along a portion of said inner shaft housing and a spring-actuated locking means, a portion of said locking means disposed within said slot.

16. The surgical probe of claim 15 wherein said locking means comprises a button member, spring means and retainer member, a first end of said retainer member inserted through said spring means and attached to said button member, a second end of said retainer member being disposed within said slot, wherein by depressing said button member, said retainer member may be moved along said slot to position or move said inner probe shaft with respect to said outer probe shaft.

17. The surgical probe of claim 15, further including means for determining the position of said inner probe shaft with respect to said outer probe shaft.

18. The surgical probe of claim 17 wherein said means for determining includes at least one aperture disposed along said slot.

19. The surgical probe of claim 18 wherein each said aperture disposed along said slot corresponds to a specific position of said inner probe shaft with respect to said outer probe shaft.

20. A surgical probe for use with a valve, comprising:

an inner cannula having an inner probe shaft defining a first internal passageway extending from a first end to a second end of said inner probe shaft and an inner shaft housing defining a first internal channel extending from a first end to a second end of said inner shaft housing, the first end of said inner probe shaft connected to the second end of said inner shaft housing to allow communication between said first internal passageway and said first internal channel, the first end of said inner shaft housing operatively associated with the valve;

an elongated slot extending along a portion of said inner shaft housing;

an outer cannula having an outer probe shaft defining a second internal passageway extending from a first end to a second end of said outer probe shaft and an outer shaft housing defining a second internal channel extending from a first end to a second end of said outer shaft housing, the first end of said outer probe shaft connected to the second end of said outer shaft housing to allow communication between said second internal passageway and said second internal channel, at least a portion of said inner probe shaft disposed within said second internal channel and said second internal passageway, at least a portion of the second end of said inner shaft housing disposed within said second internal channel;

a spring-actuated locking means operatively associated with said outer shaft housing, a portion of said locking means disposed within said slot;

an o-ring disposed along an outer surface portion of said inner probe shaft, said o-ring providing a blockage seal for material and debris entering the space created between said inner probe shaft and said outer probe shaft when said inner probe shaft is inserted within the second internal passageway of said outer probe shaft; and

a retaining ring disposed along an outer surface portion of said inner probe shaft intermediated said o-ring and the first end of said inner probe shaft, said retaining ring providing a tension fit between said inner probe shaft and said outer probe shaft when said inner probe shaft is received within said outer probe shaft;

wherein either said inner cannula or said outer cannula is moved in relation with the other cannula to perform various functions.

21. The surgical probe of claim 20 wherein said locking means comprises a button member, spring means and retainer member, a first end of said retainer member inserted through said spring means and attached to said button member, a second end of said retainer member being disposed within said slot, wherein by depressing said button member, said retainer member may be moved along said slot to position or move said inner probe shaft with respect to said outer probe shaft.

22. The surgical probe of claim 21, further including means for determining the position of said inner probe shaft with respect to said outer probe shaft.

23. The surgical probe of claim 22 wherein said means for determining includes at least one aperture disposed along said slot.

24. The surgical probe of claim 23 wherein each said aperture disposed along said slot corresponding to a specific position of said inner probe shaft with respect to said outer probe shaft.