Electrical surgical stapling instrument with tissue compressive force control
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/068
A61B-017/072
A61B-017/115
A61B-017/11
A61B-017/00
A61B-090/00
출원번호
US-0793962
(2010-06-04)
등록번호
US-9681873
(2017-06-20)
발명자
/ 주소
Smith, Kevin W.
Palmer, Matthew A.
Bales, Jr., Thomas O.
Deville, Derek Dee
Riveria, Carlos
출원인 / 주소
Ethicon LLC
대리인 / 주소
Mayback & Hoffman, P.A.
인용정보
피인용 횟수 :
44인용 특허 :
154
초록▼
A surgical stapling instrument includes a handle having a stapler-closing device. A surgical stapling end effector is connected to the handle and has a pair of opposing stapling surfaces. At least one of the stapling surfaces is operable to move with respect to the other of the stapling surfaces upo
A surgical stapling instrument includes a handle having a stapler-closing device. A surgical stapling end effector is connected to the handle and has a pair of opposing stapling surfaces. At least one of the stapling surfaces is operable to move with respect to the other of the stapling surfaces upon actuation of the stapler-closing device to apply a compressive force to tissue therebetween. At least one variable member is operable to receive the compressive force applied to the tissue and to exhibit at least one of mechanical and electrical change associated with the received compressive force. The change influences a surgical procedure on the compressed tissue.
대표청구항▼
1. A surgical stapling instrument, comprising: a handle having a stapler-closing device;a surgical stapling end effector connected to the handle and having a pair of opposing stapling surfaces, at least one of the stapling surfaces operable to move with respect to the other of the stapling surfaces
1. A surgical stapling instrument, comprising: a handle having a stapler-closing device;a surgical stapling end effector connected to the handle and having a pair of opposing stapling surfaces, at least one of the stapling surfaces operable to move with respect to the other of the stapling surfaces upon actuation of the stapler-closing device to apply a compressive force to tissue therebetween;a mechanical force switch operable to receive the compressive force applied to the tissue and to switch from a the first electrical switching state to a second electrical switching state, the first and second electrical switching states being initiated and changed solely by mechanical movements associated with the received compressive force, the change in electrical switching states influencing a surgical procedure on the compressed tissue; andthe change in electrical switching states being dependent upon the received compressive force being at least equal to a pre-determined compressive force, wherein the pre-determined compressive force is a biasing force that retains the mechanical force switch in the first electrical switching state until the opposing compressive force received upon the mechanical force switch overcomes the biasing force to change the mechanical force switch to the second electrical switching state. 2. The surgical stapling instrument according to claim 1, further comprising an electric indication circuit electrically connected to the mechanical force switch and operable to produce a signal indicating at least one of: occurrence of the change in electrical switching states; andan amount of compressive force applied to the tissue. 3. A surgical stapling instrument, comprising: a handle having a stapler-closing device;a surgical stapling end effector connected to the handle and having a pair of opposing stapling surfaces, at least one of the stapling surfaces operable to move with respect to the other of the stapling surfaces upon actuation of the stapler-closing device to apply a compressive force to tissue therebetween; anda mechanical force switch operable to receive the compressive force applied to the tissue and to exhibit at least one of mechanical and electrical change associated with the received compressive force, the at least one change influencing a surgical procedure on the compressed tissue. 4. The surgical stapling instrument according to claim 3, wherein the surgical stapling end effector further comprises a knife assembly disposed to cut the compressed tissue between the stapling surfaces. 5. The surgical stapling instrument according to claim 3, wherein the at least one mechanical and electrical change exhibited by the mechanical force switch is dependent upon the compressive force received being at least equal to a pre-determined compressive force. 6. The surgical stapling instrument according to claim 5, wherein the pre-determined compressive force is a biasing force that opposes the compressive force received. 7. The surgical stapling instrument according to claim 6, wherein the pre-determined compressive force is applied by a pre-loaded spring. 8. The surgical stapling instrument according to claim 5, wherein the pre-determined compressive force is dependent upon at least one of a kind and an amount of tissue to be compressed prior to stapling the compressed tissue. 9. The surgical stapling instrument according to claim 5, wherein the pre-determined compressive force is dependent upon an acceptable staple-forming range. 10. The surgical stapling instrument according to claim 5, wherein the pre-determined compressive force is adjustable to accommodate differences in tissue thicknesses. 11. The surgical stapling instrument according to claim 3, wherein: the handle has a longitudinal axis; andthe mechanical force switch is disposed along the longitudinal axis. 12. The surgical stapling instrument according to claim 11, wherein the mechanical force switch is operable to switch from a first electrical switching state to a second electrical switching state. 13. The surgical stapling instrument according to claim 12, wherein the surgical stapling end effector carries out the surgical procedure on the compressed tissue only after the compressive force received by the mechanical force switch is sufficient to change the mechanical force switch from the first electrical switching state to the second electrical switching state. 14. The surgical stapling instrument according to claim 3, wherein the surgical stapling end effector comprises one of a circular surgical staple head and a linear surgical staple head. 15. The surgical stapling instrument according to claim 3, further comprising an electric indication circuit electrically connected to the mechanical force switch and operable to produce a signal indicating occurrence of the at least one mechanical and electrical change. 16. The surgical stapling instrument according to claim 3, further comprising an electric indication circuit electrically connected to the mechanical force switch and operable to produce a signal indicating an amount of compressive force applied to the tissue. 17. A surgical stapling instrument, comprising: a handle having a stapler-closing device and a longitudinal axis;a surgical stapling end effector connected to the handle and having a pair of opposing stapling surfaces, at least one of the stapling surfaces operable to move with respect to the other of the stapling surfaces upon actuation of the stapler-closing device to apply a compressive force to tissue therebetween;a mechanical force switch disposed along the longitudinal axis of the handle, the mechanical force switch being operable to receive the compressive force applied to the tissue and to exhibit at least one of mechanical and electrical change associated with the received compressive force, the at least one change influencing a surgical procedure on the compressed tissue; andan electric indication circuit electrically connected to the mechanical force switch and operable to produce a signal indicating occurrence of the at least one of mechanical and electrical change. 18. The surgical stapling instrument according to claim 17, wherein the mechanical force switch is operable to switch from a first electrical switching state to a second electrical switching state, the first and second electrical switching states being initiated and changed solely by mechanical movements associated with the received compressive force. 19. The surgical stapling instrument according to claim 18, wherein the surgical stapling end effector carries out the surgical procedure on the compressed tissue only after the compressive force received by the mechanical force switch is sufficient to change the mechanical force switch from the first electrical switching state to the second electrical switching state. 20. The surgical stapling instrument according to claim 18, wherein the change in electrical switching states of the mechanical force switch is dependent upon the compressive force received being at least equal to a pre-determined compressive force, wherein the pre-determined compressive force is a biasing force that opposes the compressive force received.
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