SURGICAL STAPLER AND METHOD

• US 20100076429A1
• Filed: 12/02/2009
• Published: 03/25/2010
• Est. Priority Date: 04/16/2002
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: HEINRICH, Russell
• Granted Patent: US 8,413,869 B2
• Time in Patent Office: Days
• US Class Current: 606/49
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 17/04 for suturing wounds; Holders or packages for needles or suture materials suture materials A61L17/00
• CPC Class Codes: A61B 17/0686 having a forming anvil staying below the tissue during stapling
• 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 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2018/1425 Needle

Abstract

The present disclosure relates to surgical instruments including a staple anvil formed in a distal end of the surgical stapler and a staple cartridge selectively receivable in a distal end of the surgical stapler and in juxtaposition relative to the staple anvil, the staple cartridge including one or more laterally spaced apart rows of staple slots formed in an upper surface thereof, a plurality of surgical staples disposed, one each, within the staple slots, and a staple line reinforcing system configured and adapted to augment the strength of the staple line formed by the firing of the surgical staples into body tissue, wherein the surgical stapler concomitantly drives the plurality of surgical staples through the adjacent layers of body tissue to mechanically secure the body tissue and activates the reinforcing system to non-mechanically secure the adjacent layers of body tissue to one another.

Claims

1. A surgical stapler comprising:

a first jaw adapted to receive a staple cartridge in a distal end of the first jaw, the staple cartridge containing a plurality of individual surgical staples, and a working surface with a plurality of staple slots formed therein;

a second jaw having a staple anvil in a distal end of the second jaw, such that during the operation of the surgical stapler the staple cartridge and the staple anvil can be approximated relative to each other;

a driving member for firing the surgical staples from the staple slots and against the approximated staple anvil; and

a tissue cauterizing system operatively associated with the staple cartridge for enhancing one or more properties of adjacent layers of body tissue to be repaired or joined by the surgical stapler, the tissue cauterizing system including a plurality of deployable needles each having a tip, the needles being adapted and disposed in the cartridge such that their tips can be extended out of the working surface of the staple cartridge to penetrate at least a layer of the adjacent layers of body tissue and to deliver electrosurgical energy to the body tissue during at least one of before, after and concomitant with firing of the surgical stapler.

2. The surgical stapler according to claim 1, wherein the tissue cauterizing system comprises:

a source of electrical energy electrically connected to the surgical stapler via a first and a second power line, and wherein the plurality of deployable needles have a first position wherein the plurality of deployable needles are entirely retained within the staple cartridge and a second position wherein the tip of each of the plurality of deployable needles projects from the staple cartridge.

3. The surgical stapler according to claim 2, wherein the first jaw includes the driving member being adapted to be slidingly received within the staple cartridge, the driving member being adapted to displace each of the plurality of deployable needles from the first position to the second position.

4. The surgical stapler according to claim 2, wherein the driving member includes an energy transmission strip, wherein the energy transmission strip is electrically connected to the first power line and electrically interconnects each of the plurality of deployable needles with the first power line.

5. The surgical stapler according to claim 4, wherein each of the plurality of deployable needles and the transmission strip are made from an electrically conductive material.

6. The surgical stapler according to claim 2, wherein the staple anvil is electrically connected to the second power line.

7. The surgical stapler according to claim 2, wherein when the plurality of deployable needles is in the second position and when the distal end of each of the plurality of deployable needles penetrates into tissue at the target staple site, the tip of the plurality of needles do not contact the staple anvil.

8. The surgical stapler according to claim 2, wherein each of the plurality of deployable needles is biased to the first position.

9. The surgical stapler according to claim 2, wherein the tissue cauterizing system includes a plurality of springs disposed, one each, about each of the plurality of deployable needles to bias each of the plurality of deployable needles to the first position.

10. The surgical stapler according to claim 2, wherein the source of electrical energy is an electrosurgical generator.

11. An electrosurgical system, comprising:

a surgical stapler including;

a first jaw having a staple cartridge selectively receivable therein, the staple cartridge including;

one or more laterally spaced apart rows of staple slots formed in an upper surface thereof;

a plurality of surgical staples disposed, one each, within the staple slots;

a plurality of staple pushers disposed, one each, within the staple slots in a position to push and eject each of the plurality of staples from the staple slots; and

a plurality of deployable needles disposed within the staple cartridge, each of the plurality of deployable needles having a first position wherein the needle is entirely retained within the staple cartridge and a second position wherein a tip portion of the needle projects from the staple cartridge;

a second jaw having a staple anvil supported on a distal end thereof; and

a driving member operatively associated with the first jaw, the driving member being adapted to be slidingly received within the staple cartridge and to transform a linear displacement thereof into a concomitant transverse displacement of the plurality of staple pushers and of the plurality of deployable needles, the drive member including an energy transmission strip extending longitudinally along the length thereof; and

a source of electrical energy electrically connected to the surgical stapler, the source of electrical energy including;

a first power line electrically connected to the staple anvil; and

a second power line electrically connected to the transmission strip of the drive member and electrically communicable with each of the plurality of deployable needles as the driving member is displaced in a distal direction through the staple cartridge.

12. The electrosurgical system according to claim 11, wherein each of the plurality of deployable needles and the transmission strip of the surgical stapler are made from an electrically conductive material.

13. The electrosurgical system according to claim 11, wherein when each of the plurality of deployable needles of the surgical stapler is in the second position the tip of each of the plurality of deployable needles penetrates into tissue at the target staple site and does not contact the staple anvil.

14. The electrosurgical system according to claim 11, wherein each of the plurality of deployable needles of the surgical stapler is biased into the first position.

15. The electrosurgical system according to claim 11, wherein the tissue cauterizing system includes a plurality of springs disposed, one each, about each of the plurality of deployable needles to bias each of the plurality of deployable needles into the first position.

16. A surgical stapler, comprising:

a first jaw having a staple cartridge containing a plurality of surgical staples, and having a working surface with a plurality of staple slots formed therein;

a second jaw having a staple anvil, such that during the operation of the surgical stapler the staple cartridge and the staple anvil can be approximated relative to one another;

a driving member for firing the surgical stapler to expel the surgical staples from their staple slots and against the staple anvil; and

a body tissue property enhancing system for enhancing one or more properties of body tissue to be repaired or joined by the surgical stapler, the body tissue property enhancing system including;

a biocompatible wound closure material dispensing system for dispensing an amount of surgically biocompatible wound closure material to a target staple site during at least one of prior to, after and concomitant with a firing of the surgical stapler to expel the plurality of staples loaded in the staple cartridge, the body tissue property enhancing system comprising at least one reservoir disposed in the surgical stapler and containing the biocompatible wound closure material therein; and

at least one member supported by the surgical stapler and being in fluid communication with the at least one reservoir, the at least one member being deployable into the target staple site upon a firing of the surgical stapler and delivering the biocompatible wound closure material to the target staple site.

17. The surgical stapler according to claim 16, wherein the at least one reservoir is disposed in the staple cartridge.

18. The surgical stapler according to claim 16, wherein the at least one member includes a plurality of deployable needles each having a tip, the needles being adapted and disposed in ducts formed in the staple cartridge.

19. The surgical stapler according to claim 18, wherein the tips of the plurality of deployable needles are extendable out of the working surface of the staple cartridge to penetrate at least one layer of a pair of adjacent layers of body tissue and to allow the biocompatible wound closure material to be delivered, via the plurality of needles, the body tissue.

20. The surgical stapler according to claim 16, wherein the staple cartridge includes a plurality of ducts formed in the working surface thereof, wherein the at least one member includes a plurality of tissue penetrating deployable needles disposed within the plurality of ducts, and wherein the plurality of ducts communicate with and extend from the at least one reservoir to the working surface of the staple cartridge.