SURGICAL STAPLING APPARATUS INCLUDING STAPLE WITH PLATE

• US 20100217314A1
• Filed: 12/04/2009
• Published: 08/26/2010
• Est. Priority Date: 01/14/2009
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Holsten, Henry E., Blier, Kenneth
• Granted Patent: US 8,381,961 B2
• Time in Patent Office: Days
• US Class Current: 606/220
• CPC Class Codes: A61B 17/0643 with separate closing member, e.g. for interlocking with staple
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially

Abstract

A fastener system includes an open loop member and a receiving plate. The open loop member has first and second legs and a base. Each leg defines a longitudinal axis therethrough. The receiving plate has a body including a pair of spaced apart channels. The body defines a longitudinal axis therethrough. Each channel is positioned to receive a portion of one of the first or second legs.

Claims

1. A surgical fastener system comprising:

an open loop member having first and second legs and a base, each leg defining a longitudinal axis therethrough, each leg configured and dimensioned to penetrate tissue; and

a receiving plate, the receiving plate having a body, the body defining a longitudinal axis therethrough, the body including first and second spaced apart channels, each channel positioned to receive at least a portion of one of the first or second legs, each channel disposed at an angle substantially perpendicular to the longitudinal axis of each of the legs and at least partially angled away with respect to the longitudinal axis of the body.

2. A fastener system according to claim 1, wherein the receiving plate has a length greater than a length of the open loop member.

3. A fastener system according to claim 1, wherein the receiving plate has a width greater than a width of the open loop member.

4. A fastener system according to claim 1, wherein the receiving plate and the open loop member form a closed box-like configuration upon engagement with each other.

5. A fastener system according to claim 1, wherein at least one of the channels is configured and dimensioned to direct at least a portion of at least one of the legs at least partially therealong.

6. A fastener system according to claim 1, wherein at least one of the channels is configured and dimensioned to accommodate at least a portion of one of the legs.

7. A fastener system according to claim 1, wherein at least one of the channels has a substantially parabolic shape.

8. A fastener system according to claim 1, further comprising a cover, the cover disposed over at least a portion of the first channel.

9. A fastener system according to claim 8, wherein the cover has an opening to receive a portion of one of the legs.

10. A fastener system according to claim 8, wherein the cover has a substantially conical shape.

11. A fastener system of claim 1, wherein the first and second spaced apart channels are formed on a first surface of the retaining plate, and the retaining plate further includes third and fourth channels formed on an opposing surface of the plate.

12. A fastener system according to claim 11, further comprising a cover disposed over at least a portion of the third channel.

13. A fastener system according to claim 8, further comprising a second cover disposed over at least a portion of the second channel.

14. A surgical stapling apparatus comprising:

a housing having an actuator;

an actuation mechanism operatively coupled to the actuator; and

a tool assembly operatively coupled to the actuation mechanism, the tool assembly having a cartridge assembly and an anvil assembly relatively movable to clamp tissue therebetween, the tool assembly accommodating a fastener system, the fastener system including;

an open loop member having first and second legs and a base, each leg defining a longitudinal axis therethrough, each leg configured and dimensioned to penetrate tissue; and

a receiving plate, the receiving plate having a body, the body defining a longitudinal axis therethrough, the body including a pair of spaced apart channels, each channel positioned to receive at least a portion of one of the first or second legs, each channel disposed at an angle substantially perpendicular to the longitudinal axis of each of the legs and at least partially angled with respect to the longitudinal axis of the body;

wherein the actuator is movable to effect advancement of the actuation mechanism, the advancement of the actuation mechanism effecting ejection of the open loop member and the forming of at least a portion of at least one of the legs into at least a portion of at least one of the channels of the receiving plate.

15. A fastener system according to claim 14, further comprising a cover, the cover disposed over at least a portion of the first channel.

16. A fastener system according to claim 15, further comprising a second cover disposed over at least a portion of the second channel.

17. A fastener system according to claim 14, wherein at least one of the channels is configured and dimensioned to direct at least a portion of at least one of the legs at least partially therealong.

18. A two part surgical fastener comprising a staple and a receiving plate, the staple having a backspan and first and second legs extending therefrom, the legs having distal tips to penetrate tissue, the receiving plate having first and second channels to receive the distal tip of the respective staple leg and direct the staple leg inwardly toward an opposing staple leg to bend the legs inwardly to form a bent staple leg portion, and a cover extending from the receiving plate to cover a portion of the bent staple leg portion.

19. The fastener of claim 18, wherein the first and second channels are formed on a first surface of the retaining plate, the retaining plate further having a second opposing surface with a pair of channels formed therein.

20. The fastener of claim 19, further comprising a cover extending from the second surface of the retaining plate.