Hernia mesh tacks

• US 7,867,252 B2
• Filed: 06/11/2003
• Issued: 01/11/2011
• Est. Priority Date: 06/11/2002
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Aranyi, Ernie, Criscuolo, Christopher J.
• Primary Examiner(s): Ho; (Jackie) Tan-Uyen T
• Assistant Examiner(s): DANG, PHONG SON H
• Application Number:
  US10/517,402
• Publication Number:
  US 20050171562A1
• Time in Patent Office: 2,771 Days
• Field of Search: 606 71- 73, 606/60, 606/65, 606/77, 606/151, 606/232, 606/300, 606/301, 606304-308, 606315-317, 606/319, 606/321, 411/411, 411/414, 411/308, 411395-397, 411/426, 411/388, 411/389, 411/412, 411/378, 411/413, 411/447, 411/549, 411/551, 411/16
• US Class Current: 606/232
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/08 Wound clamps or clips, i.e. not or only partly penetrating the tissue suture bridges A61B17/0466; Devices for bringing together the edges of a wound
• CPC Class Codes: A61B 17/10 for applying or removing wound clamps, e.g. containing only one clamp or staple A61B17/076 takes precedence; containing multiple wound clamps A61B17/068; Wound clamp magazines containers, packaging elements or packages specially adapted for particular articles or with special means for dispensing contents B65D83/00, B65D85/00
• CPC Class Codes: A61B 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/72 Intramedullary pins, nails or other devices A61B17/744 takes precedence
• CPC Class Codes: A61B 17/861 specially shaped for gripping driver
• CPC Class Codes: A61B 17/8615 at the central region of the screw head
• CPC Class Codes: A61B 17/8625 Shanks, i.e. parts contacting bone tissue
• CPC Class Codes: A61B 17/863 with thread interrupted or changing its form along shank, other than constant taper
• CPC Class Codes: A61B 17/864 hollow, e.g. with socket or cannulated
• CPC Class Codes: A61B 17/8645 Headless screws, e.g. ligament interference screws
• CPC Class Codes: A61B 17/888 the driver bit acting on the central region of the screw head
• CPC Class Codes: A61B 17/8888 at its central region
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/0648 threaded, e.g. tacks with a screw thread
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes
• CPC Class Codes: A61F 2002/0072 Delivery tools therefor
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

There are disclosed various embodiments of surgical tacks for use in surgical procedures. The tacks generally include a head and a barrel portion extending distally from the head. Preferably the head and the barrel portion define a throughbore for receipt of a drive instrument. A thread on the head is provided to engage threads in the installation tool. A tissue thread is provided on the barrel portion to engage tissue. Distal and proximal surfaces of the tissue thread may be oriented at various angles relative to the barrel portion. There is also disclosed an insertion instrument to insert one or more tacks as well as a method of use. There is further disclosed a model device for use in explaining the operation of the instrument.

Claims

1. A surgical tack for attaching a material to tissue comprising:

a head having a drive thread formed on an outer surface thereof, wherein the drive thread is configured to prevent threaded engagement of the head into tissue;

a barrel portion extending from the head and having a tissue engaging thread formed on an outer surface thereof and extending substantially along an entire length of the barrel portion, wherein a distal end of the drive thread and a proximal end of the tissue engaging thread define a gap therebetween, wherein the proximal end of the tissue engaging thread is in the same plane as the distal end of the drive thread and the plane is substantially transverse to a longitudinal axis of the barrel portion, wherein the drive thread and the tissue engaging thread are formed in a same first direction; and

a throughbore extending through the head and barrel portion for receipt of a drive tool.

2. The surgical tack as recited in claim 1, further comprising a transition zone between the drive thread and the tissue engaging thread.

3. The surgical tack as recited in claim 1, wherein a leading edge of the drive thread is tapered.

4. The surgical tack as recited in claim 1, wherein the throughbore has a D-shaped cross-section.

5. The surgical tack as recited in claim 1, wherein a leading edge of the drive thread is chamfered.

6. The surgical tack as recited in claim 1, wherein the maximum diameter of the drive thread is greater than the maximum diameter of the tissue engaging thread.

7. The surgical tack as recited in any of the preceding claims, wherein the throughbore has a D-shaped cross-section for receipt of an installation tool.

8. The surgical tack as recited in claim 1 wherein the barrel portion includes a smooth or rounded leading edge.

9. The surgical tack as recited in claim 1 wherein the drive thread is configured to facilitate removal of the tack.

10. The surgical tack of claim 1, wherein the drive thread and the tissue engaging thread have substantially the same pitch.

18. The surgical tack as recited in claim 1, wherein a gap is formed between a first end of the drive thread and a second end of the drive thread.

19. The surgical tack as recited in claim 1, wherein a first end of the drive thread is laterally spaced from a second end of the drive thread.

11. A surgical tack comprising:

a head having a first thread formed thereon, wherein the first thread is configured to prevent threaded engagement of tissue;

a barrel portion extending from the head, the barrel portion having a second thread extending substantially along an entire length thereof, wherein a leading edge of the first thread and a trailing edge of the second thread are spaced apart thereby defining a discontinuity therebetween, the leading edge of the first thread and the trailing edge of the second thread are both in a common plane, the common plane extends through a longitudinal axis of the barrel portion, wherein the first thread and the second thread arc formed in a same first direction; and

a throughbore extending through the tack for receipt of a drive tool.

12. The surgical tack of claim 11, wherein the first thread and the second thread have substantially the same pitch.

13. A surgical tack for attaching a material to tissue comprising:

a head having a drive thread formed on an outer surface thereof, wherein the head is configured to prevent threaded engagement of tissue by the drive thread; and

a barrel portion extending from the head and having a tissue engaging thread formed on an outer surface thereof and extending substantially along an entire length of the barrel portion, wherein a distal end of the drive thread is radially spaced from a proximal end of the tissue engaging thread within a plane that extends through a longitudinal axis of the barrel portion, wherein the drive thread and the tissue engaging thread are formed in a same first direction.

14. The surgical tack of claim 13, further comprising:

a throughbore extending through the head and barrel portion for receipt of a drive tool.

15. The surgical tack of claim 13, wherein the drive thread and the tissue engaging thread have substantially the same pitch.

16. The surgical tack as recited in claim 13 wherein the barrel portion includes a smooth or rounded leading edge.

17. The surgical tack as recited in claim 13, wherein the first thread is configured to facilitate removal of the tack.