SURGICAL DEVICE

• US 20100198149A1
• Filed: 01/30/2009
• Published: 08/05/2010
• Est. Priority Date: 01/30/2009
• Status: Active Grant

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Fox, William D.
• Granted Patent: US 9,226,772 B2
• Time in Patent Office: Days
• US Class Current: 604/99.01
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/00278 Transorgan operations, e.g. transgastric
• CPC Class Codes: A61B 2017/0034 adapted to be inserted through a working channel of an endoscope
• CPC Class Codes: A61B 2017/06076 helically or spirally coiled for sutures A61B2017/06171
• CPC Class Codes: A61B 2017/22061 for spreading elements apart
• CPC Class Codes: A61B 2017/306 holding by means of suction
• CPC Class Codes: A61B 2017/3484 Anchoring means, e.g. spreading-out umbrella-like structure
• CPC Class Codes: A61B 2017/349 Trocar with thread on outside
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

A surgical device comprises a guide tube having a proximal end, a distal end, and an inside diameter. A needle has a proximal end and a distal end. The needle comprises a longitudinal portion having a diameter suitable to be slidably received within the inside diameter of the guide tube. The needle comprises a helical element disposed at the distal end of the needle.

Claims

1. A surgical device, comprising:

a guide tube having a proximal end, a distal end, and an inside diameter; and

a needle having a proximal end and a distal end, the needle comprising;

a longitudinal portion having a diameter suitable to be slidably received within the inside diameter of the guide tube; and

a helical element disposed at the distal end of the needle.

2. The surgical device of claim 1, comprising a tapered element located proximally relative to the helical element.

3. The surgical device of claim 2, wherein the tapered element comprises:

a first tapered segment;

a second tapered segment; and

a middle segment located between the first and second tapered segments, the middle segment having a diameter which is less than any one of the diameter of the longitudinal portion and a diameter of the helical element.

4. The surgical device of claim 3, wherein the first tapered segment reduces the diameter of the longitudinal portion of the needle to a reduced diameter of the middle segment;

and wherein the second tapered segment reduces the diameter of the helical element to the reduced diameter of the middle segment.

5. The surgical device of claim 4, wherein the diameter of the longitudinal portion of the needle is substantially the same as the diameter of the helical element.

6. The surgical device of claim 4, wherein the diameter of the longitudinal portion of the needle is different from the diameter of the helical element.

7. The surgical device of claim 1, wherein the helical element is formed of a shape memory alloy.

8. The surgical device of claim 1, wherein the helical element is integrally formed with the longitudinal portion of the needle.

9. The surgical device of claim 1, wherein the helical element is rotatable by rotating the distal end of the needle.

10. The surgical device of claim 1, comprising a conduit to slidably receive the guide tube.

11. A method of claim 1, comprising:

inserting the surgical device of claim 1 into a natural orifice of a patient;

advancing the helical element until it contacts a wall of inner body lumen; and

piercing the inner body lumen by rotating the helical element.

12. A surgical device, comprising:

a guide tube having a proximal end and a distal end; and

a needle having a proximal end and a distal end, wherein the proximal end of the needle is attached to the distal end of the guide tube; and

a helical element disposed at the distal end of the needle.

13. The surgical device of claim 12, comprising a tapered element located proximally relative to the helical element.

14. The surgical device of claim 13, wherein the tapered element comprises:

a first tapered segment;

a second tapered segment; and

a middle segment located between the first and second tapered segments, the middle segment having a diameter which is less than any one of the diameter of the guide tube and a diameter of the helical element.

15. The surgical device of claim 14, wherein the first tapered segment reduces the diameter of the guide tube to a reduced diameter of the middle segment;

and wherein the second tapered segment reduces the diameter of the helical element to the reduced diameter of the middle segment.

16. The surgical device of claim 15, wherein the diameter of the guide tube is substantially the same as the diameter of the helical element.

17. The surgical device of claim 15, wherein the diameter of the guide tube is different from the diameter of the helical element.

18. The surgical device of claim 12, wherein the helical element is formed of a shape memory alloy.

19. A surgical device, comprising:

a guide tube comprising a proximal end and a distal end;

an inflatable member at least partially surrounding a portion of the conduit and positioned proximal to the distal end of the guide tube, the inflatable member comprising an outer perimeter;

a sleeve at least partially surrounding a portion of the guide tube, the sleeve comprising an elongate channel comprising an inner diameter larger than an outer diameter of the guide tube, the sleeve moveable at least between a first position and a second position, the sleeve configured to shield the inflatable member when the sleeve is in the first position, and the sleeve configured to expose the inflatable member for inflation when the sleeve is in the second position; and

a needle configured to be slidably disposed within the guide tube, the needle comprising;

a longitudinal portion slidably disposed within the inside diameter of the guide tube;

a helical element having disposed at the distal end of the needle; and

a tapered element located proximally relative to the helical element;

wherein the tapered element comprises;

a first tapered segment;

a second tapered segment; and

a middle segment located between the first and second tapered segments, the middle segment having a diameter which is less than a diameter of any one of the longitudinal portion of the needle and the helical element.

20. The surgical device of claim 19, wherein the sleeve is configured to cover the inflatable member when the sleeve is in the first position to at least inhibit the inflatable member from inflating under subatmospheric pressure conditions.