Instrument for creating a fluid jet

• US 5,944,686 A
• Filed: 06/07/1995
• Issued: 08/31/1999
• Est. Priority Date: 06/07/1995
• Status: Expired due to Fees

• Current Assignee: HydroCision, Inc.
• Original Assignee: HydroCision, Inc.
• Inventors: Moutafis, Timothy E., Yoder, Marvel John, Patterson, Frank Van
• Primary Examiner(s): Coggins, Wynn Wood
• Assistant Examiner(s): Blyveis, Deborah
• Application Number:
  US08/481,566
• Time in Patent Office: 1,546 Days
• Field of Search: 604/22, 606/159, 606/167, 606/127-128, 606/170, 134/166 C, 134/167 C, 134/168 C
• US Class Current: 604/22
• CPC Class Codes: A61B 17/3203 Fluid jet cutting instruments
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/32032 using cavitation of the fluid

Abstract

An instrument for delivering a variable pressure stream of fluid as a coherent jet. The instrument may be configured for holding in the hand of a user or for manipulation by machine control. The orifices may be oriented axially, transversely or obliquely. A deflector may be provided opposite the orifice to transform the jet stream into a harmless spray. The deflector may be slidable (in the axial mode) or pivotable (in the transverse mode) to ensure a small instrument profile. The instrument may be moldable allowing the user to reshape the jet tip into a desired configuration. The instrument may be remotely steerable and enable a user to selectively alter the direction of the jet without having to remove the instrument from the surgical site.

Claims

1. An instrument for creating a fluid jet, comprising:

a body including a lumen for conducting a high pressure fluid and at least one jet opening, in communication with said lumen, for forming a cutting jet as high pressure fluid streams therethrough; and

a deflector supported by said body and locatable opposite said at least one jet opening for transforming the cutting jet into a harmless spray;

wherein said deflector and said at least one jet opening are moveable longitudinally relative to one another.

2. The instrument recited in claim 1 wherein said lumen and said at least one jet opening are included within a delivery tube moveable within a passageway in said body of the instrument.

3. The instrument recited in claim 2 further including a side port extending from said body and in communication with said passageway.

4. The instrument recited in claim 3 wherein said side port is connectable to an evacuation source.

5. The instrument recited in claim 2 wherein a distal tip of said delivery tube has an expanded configuration when deployed from said passageway and a reduced configuration when retracted within said passageway.

6. The instrument recited in claim 5 wherein said expanded configuration includes an outward curve.

8. The instrument recited in claim 1 wherein a distance between said at least one jet opening and said deflector defines a cutting jet length which is varied by relative longitudinal movement of said deflector and said at least one jet opening.

9. The instrument recited in claim 1 further comprising a hand tightenable connector for joining said body to a source of high pressure fluid, said hand tightenable connector being in fluid communication with said lumen.

10. The instrument recited in claim 1 wherein said body is elongated.

11. The instrument recited in claim 1 wherein said deflector is mounted on a distal end of a delivery tube moveable within a passageway in said body of the instrument.

12. The instrument recited in claim 1 wherein said deflector is mounted at a distal tip of said instrument, longitudinally spaced from said at least one jet opening.

13. The instrument recited in claim 1 wherein said body is adapted at a first end thereof for connection with a source of high pressure fluid.

7. The instrument recited in 2 wherein a seal is provided in said passageway around said delivery tube to prevent fluid leakage.

14. An instrument for creating a fluid jet, comprising:

a body including a lumen for conducting a high pressure fluid and at least one jet opening, in communication with said lumen, for forming a cutting jet as high pressure fluid streams therethrough; and

a deflector supported by the instrument and spaced from said body and said lumen, for transforming the cutting jet into a harmless spray;

wherein said deflector and said body are moveable relative to one another.

15. The instrument recited in claim 14 wherein said deflector is mounted on a distal end of a delivery tube moveable within a passageway in said body of the instrument.

16. The instrument recited in claim 15 wherein said lumen and said at least one jet opening are included within said delivery tube.

17. The instrument recited in claim 15 wherein a distal tip of said delivery tube has an expanded configuration when deployed from said passageway and a reduced configuration when retracted within said passageway.

18. The instrument recited in claim 14 wherein said deflector and said one jet opening are moveable relative to one another.

19. The instrument according to claim 18 wherein a distance between said at least one jet opening and said deflector defines a cutting jet length which is varied by relative lateral movement of said deflector and said at least one jet opening.

20. The instrument recited in claim 14 wherein said deflector is moveable relative to said body.

21. The instrument recited in claim 14 wherein said body is moveable relative to said deflector.

29. The instrument as recited in claim 14, wherein a distance between said at least one jet opening and said deflector defines a cutting length, which is varied by relative movement of said deflector and said at least one jet opening.

22. An instrument for creating a fluid jet, comprising:

a body including a lumen for conducting a high pressure fluid and at least one jet opening, in communication with said lumen, for forming a cutting jet as high pressure fluid streams therethrough; and

a deflector supported by said body and locatable opposite said at least one jet opening for transforming the cutting jet into a harmless spray;

wherein said deflector and said at least one jet opening are moveable laterally relative to one another.

23. The instrument recited in claim 22 wherein said lumen and said at least one jet opening are included within a delivery tube moveable within a passageway in said body of the instrument.

24. The instrument recited in claim 23 wherein a distal tip of said delivery tube has an expanded configuration when deployed from said passageway and a reduced configuration when retracted within said passageway.

25. The instrument recited in claim 22 wherein said deflector and said at least one jet opening are moveable axially relative to one another.

26. The instrument recited in claim 22 wherein said lumen and said at least one jet opening are included with a delivery tube moveable within a passageway in said body of the instrument, said deflector being pivotally mounted to said delivery tube.

27. The instrument recited in claim 22 wherein a distance between said at least one jet opening and said deflector defines a cutting jet length which is varied by relative lateral movement of said deflector and said at least one jet opening.

28. An instrument for creating a fluid jet, comprising:

an elongated body having a passageway extending from an opening at a first end and a fluid delivery line moveable in said passageway, said fluid delivery line having a proximal end larger than said opening at a first end which is adapted for connection with a source of high pressure fluid, said fluid delivery line including at least one jet opening for creating a cutting jet as high pressure fluid streams therethrough, and a deflector for transforming the cutting jet into a harmless spray, said deflector and said at least one jet opening being moveable relative to one another.