SUTURE REINFORCEMENT MATERIAL FOR AUTOMATIC SUTURING DEVICE

• US 20070049953A2
• Filed: 01/17/2006
• Published: 03/01/2007
• Est. Priority Date: 07/17/2003
• Status: Active Grant

• Current Assignee: Gunze Limited
• Original Assignee: Gunze Limited
• Inventors: Ohtani, Hitoshi, Shimoji, Hiroyuki
• Granted Patent: US 8,177,797 B2
• Time in Patent Office: Days
• US Class Current: 606/151
• CPC Class Codes: A61B 17/0483 Hand-held instruments for holding sutures A61B17/0469 takes precedence; other holders for needles or sutures A61B17/06061; surgical forceps A61B17/28; surgical pincettes A61B17/30
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 2017/0477 with pre-tied sutures

Abstract

The present invention relates to a tubular suture reinforcement material suitable for use in automatic suturing devices that are widely used in surgical operations, etc. More specifically, the present invention relates to a tubular suture reinforcement material with which a tubular shape is easily obtained to thereby increase its productivity, and removal of thread is easily achieved. The present invention aims to overcome drawbacks such that sheet-like materials joined by the conventional temporary adhesion easily separate from each other, and the tubular suture reinforcement material manufactured using a running stitch requires a lot of time and skill, and removal of the thread is difficult depending on the kind of sheet-like material, sewing pitch, etc. More specifically, the present invention relates to a tubular suture reinforcement material for an automatic suturing device, wherein both ends of one or two sheet-like materials are sewed using a chain stitch (intralooping stitch) with a single thread to form a tubular shape, and one or two thread ends at one or two sewing ends are suitably extended.

Claims

1. A tubular suture reinforcement material for an automatic suturing device, wherein both ends of one or two sheet-like materials are sewed using a chain stitch (intralooping stitch) with a single thread to form a tubular shape, and one or two thread ends at one or two sewing ends are suitably extended.

2. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein the tip part of the suture reinforcement material is sewed in a tapering manner or sewed into a bag-like shape.

3. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein at least one portion of the sheet-like material is made of at least one member selected from the group consisting of knitted materials, woven materials, nonwoven fabrics, and film, the at least one member being made of a biodegradable and bioabsorbable material.

4. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein the sheet-like material and a stretchable knitted material or woven material are stacked into a tubular shape.

5. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein a projection is formed on the sewing end portion of the one or two sheet-like materials forming the tubular shape.

6. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein extended thread ends at the sewing end are tied in a ring shape.

7. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein a stopper is passed through a loop on a side of the extended thread end, thereby preventing a thread from unraveling.

8. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein the extended thread end is passed through an anterior loop continuous to the thread end, thereby preventing a thread from unraveling.

9. A tubular suture reinforcement material for an automatic suturing device according to claim 1, wherein a loop on a side of the sewing end is tied to a loop immediately before the loop, thereby preventing a thread from unraveling.

11. An automatic suturing device, comprising a cartridge containing staples and a frame equipped with a staple receiving slot, wherein a tubular suture reinforcement material for an automatic suturing device according to claim 1 is fitted to the cartridge and/or the frame.

12. A method for removing a lesion from an affected region of a patient,

suturing said affected region with a tubular suture reinforcement material according to claim 1

cutting off the lesion from normal tissue in the affected region

removing said lesion along with a part of said suture reinforcement material while leaving another part of said suture reinforcement material in the patient.

13. The method according to claim 12, wherein the affected region comprises a soft tissue.

14. The method according to claim 13, wherein the affected region comprises pulmonary tissue.

10. A method for manufacturing a tubular suture reinforcement material for an automatic suturing device comprising:

sewing both ends of one or two sheet-like materials using a chain stitch (intralooping stitch) with a single thread to give a tubular suture reinforcement material, and

suitably extending one or two thread ends at one or two sewing ends.