SURGICAL STAPLE ASSEMBLY WITH HEMOSTATIC FEATURE

• US 20130075446A1
• Filed: 09/22/2011
• Published: 03/28/2013
• Est. Priority Date: 09/22/2011
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Wang, Yi-Lan, Miller, Matthew C., Zingman, Aron O.
• Granted Patent: US 9,393,018 B2
• Time in Patent Office: Days
• US Class Current: 227/176.1
• 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 17/07292 Reinforcements for staple line, e.g. pledgets

Abstract

A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge. The cartridge includes a housing, a plurality of staples disposed in the housing, a deck disposed over the plurality of staples, and a fastener insert tip including a plurality of hooks. The deck defines apertures, with each aperture being substantially disposed over each staple. The instrument includes a fastener insert including hooks, and the fastener insert is removably received in the anvil. A buttress is attached to one or both of the anvil and the cartridge via the hooks.

Claims

1. A surgical instrument apparatus comprising:

(a) a handle portion;

(b) a shaft housing a firing bar;

(c) an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft;

(d) a removable cartridge, wherein the lower jaw is configured to receive the cartridge when the end effector is in an open position, the cartridge comprising;

(i) a housing,

(ii) a plurality of staples disposed in the housing, and

(iii) a deck disposed over the plurality of staples, the deck defining apertures, each aperture substantially disposed over each staple; and

(e) a removable fastener insert comprising fasteners, wherein the fastener insert is configured for receipt in the anvil.

2. The apparatus of claim 1, wherein the fasteners are configured to attach to a biocompatible material.

3. The apparatus of claim 2, wherein the biocompatible material is selected from a group consisting of at least one of the following materials:

epsilon-caprolactone glycolide, bovine pericardium, polylactic acid, polyglycolic acid, polyglactin, polydioxanone, polyglyconate, whey protein, cellulose gum, starch, gelatin, silk, nylon, polypropylene, braided polyester, polybutester, polyethylene, and polyetheretherketones.

4. The apparatus of claim 2, wherein the biocompatible material comprises one of fibrin or thrombin.

5. The apparatus of claim 2, wherein the biocompatible material comprises at least one of a hemostatic agent, a sealant, or an adhesive.

6. The apparatus of claim 1, wherein the fasteners comprise hooks.

7. The apparatus of claim 6, wherein the hooks are configured to attach to loop formations in a biocompatible material to retain the material to the anvil.

8. The apparatus of claim 1, wherein the cartridge comprises a fastener insert at a distal end, the fastener insert comprising fasteners.

9. The apparatus of claim 8, wherein the fasteners are configured to attach to a biocompatible material to retain the material to the cartridge.

10. The apparatus of claim 8, wherein the fasteners comprise hooks that are configured to attach to loop formations in a biocompatible material to retain the material to the cartridge.

11. The apparatus of claim 1, wherein a proximal end of the cartridge comprises fasteners.

12. The apparatus of claim 11, wherein the fasteners comprise hooks that are configured to attach to loop formations in a biocompatible material to retain the material to the cartridge.

13. The apparatus of claim 1, wherein the fasteners comprise hooks.

14. The apparatus of claim 1, wherein the fasteners are atraumatic and configured to attach to a biocompatible material without extending through the biocompatible material.

15. The apparatus of claim 1, wherein the biocompatible material comprises a buttress, and wherein the buttress comprises one of fibrin or thrombin.

16. A method of releasing and activating adhesive with a surgical instrument, the surgical instrument including an end effector, a handle portion, and a shaft, the end effector including a lower jaw and an anvil, the lower jaw being configured to receive a removable cartridge, the instrument including a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft, the method comprising the steps of:

(a) receiving a fastener insert within an opening in the anvil;

(b) attaching a buttress to the fastener insert;

(c) producing the longitudinal closing motion to advance a severing feature of the stapling and severing assembly; and

(d) driving the severing feature through the buttress.

17. The method of claim 16, wherein the severing feature is part of a firing bar.

18. The method of claim 16, wherein the step of attaching a buttress to the fastener insert comprises attaching one or more hooks on the fastener insert to one or more loop formations within the buttress.

19. The method of claim 18, wherein the buttress comprises a biocompatible material.

20. A surgical instrument comprising:

(a) a handle portion and a shaft, the shaft housing a firing bar;

(b) a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft,

(c) an end effector connected to the handle portion, the end effector comprising an anvil and a lower jaw, the anvil defining an opening, the lower jaw being configured to receive a cartridge when the end effector is in an open position;

(d) a plurality of staples disposed in a housing of the cartridge, the anvil configured to form the staples in response to the longitudinal closing motion when the end effector is in a closed position;

(e) a deck disposed over the plurality of staples, the deck defining apertures, each aperture being substantially disposed over each staple; and

(f) a fastener insert comprising a plurality of hooks configured for receipt within the opening in the anvil, the hooks being configured for receipt of a biocompatible material;

wherein the firing bar is operable to move between the anvil and the cartridge to sever the material; and

wherein the staples are operable to be driven towards the anvil in response to the longitudinal closing motion and through the material.