Surgical instrument with modular end effector
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/32
A61B-018/14
A61B-017/00
A61B-018/00
A61B-018/04
A61B-018/12
H02J-007/00
H01M-002/26
H01M-002/10
A61B-017/064
A61B-017/285
A61B-019/00
A61B-017/29
출원번호
US-0274805
(2011-10-17)
등록번호
US-8998939
(2015-04-07)
발명자
/ 주소
Price, Daniel W.
Timm, Richard W.
Moore, Kyle P.
Johnson, Gregory W.
Schulte, John B.
Mumaw, Daniel J.
Houser, Kevin L.
출원인 / 주소
Ethicon Endo-Surgery, Inc.
인용정보
피인용 횟수 :
8인용 특허 :
176
초록▼
A surgical instrument may include a reusable body assembly, a reusable transducer and blade assembly, and a disposable end effector. The transducer and blade assembly may be latched into the body assembly. One version may include an electrical connector on the latch member to electrically couple the
A surgical instrument may include a reusable body assembly, a reusable transducer and blade assembly, and a disposable end effector. The transducer and blade assembly may be latched into the body assembly. One version may include an electrical connector on the latch member to electrically couple the body assembly to the transducer. The end effector may include an outer sheath portion coupleable to an outer sheath of the body assembly via a bayonet connection and a clamp arm pivotably coupled to the outer sheath portion. In some versions, an inner tubular member of the body assembly may also couple to an inner tube portion via a bayonet connection. The inner tubular member may include a key to align with a slot on the transducer and blade assembly to align the clamp arm with the blade. The end effector may alternatively couple via threading or ratcheting teeth having a slip feature.
대표청구항▼
1. A surgical instrument comprising: (a) a body assembly comprising: i. a casing,ii. a first elongate member extending distally from the casing,iii. a second elongate member extending distally from the casing, wherein the second elongate member is operable to translate relative to the first elongate
1. A surgical instrument comprising: (a) a body assembly comprising: i. a casing,ii. a first elongate member extending distally from the casing,iii. a second elongate member extending distally from the casing, wherein the second elongate member is operable to translate relative to the first elongate member, andiv. a transducer engagement feature movably coupled with the casing, wherein at least a portion of the transducer engagement feature extends from the casing, wherein the transducer engagement feature comprises an electrical connector; and(b) a transducer and blade assembly comprising: i. a transducer, wherein the transducer engagement feature is movable relative to the casing to selectively restrain the transducer within the casing, wherein the transducer comprises a notch having a ring connector disposed therein, andii. a blade assembly acoustically coupled to and extending distally from the transducer, wherein the blade assembly is operable to sever tissue. 2. The surgical instrument of claim 1 wherein the transducer engagement feature is operable to axially restrain the transducer and blade assembly within the casing. 3. The surgical instrument of claim 1 wherein the body assembly comprises a trigger pivotably coupled to the casing and operable to actuate the second elongate member longitudinally relative to the casing. 4. The surgical instrument of claim 1 wherein the body assembly further comprises a slip feature disposed between the first and second elongate members, wherein the slip feature is operable to selectively permit the second elongate member to rotate relative to the first elongate member. 5. The surgical instrument of claim 1, wherein the transducer engagement feature comprises a latch. 6. The surgical instrument of claim 1, wherein the blade assembly is removably coupled with the transducer. 7. The surgical instrument of claim 1 further comprising a removable distal end assembly comprising: i. a first member configured to selectively couple with a distal portion of the first elongate member, andii. a second member configured to selectively couple with a distal portion of the second elongate member. 8. The surgical instrument of claim 7 wherein the second member is insertable into the second elongate member. 9. The surgical instrument of claim 8 wherein the second member comprises a first bayonet pin, wherein the second elongate member comprises a first slot, and wherein the first bayonet pin and first slot form a bayonet connection. 10. The surgical instrument of claim 9 wherein the first slot comprises a retention feature to selectively retain the first bayonet pin therein 11. The surgical instrument of claim 9 wherein the first slot is an L-shaped slot. 12. The surgical instrument of claim 7 wherein the first elongate member comprises an inner tubular actuation member rotatable relative to the body assembly and disposed within the second elongate member. 13. The surgical instrument of claim 12 wherein the inner tubular actuation member comprises a key extending proximally from a proximal end of the inner tubular actuation member and wherein the transducer comprises a keyed member having a complementary longitudinal slot configured to receive the key. 14. The surgical instrument of claim 12, further comprising a clamp arm, wherein the clamp arm is operable to clamp tissue against a distal end of the blade assembly, wherein the second member is operable to selectively pivot the clamp arm relative to the first member upon translation of the second elongate member relative to the first elongate member, wherein the first member comprises an inner tube portion that is insertable into the inner tubular actuation member, wherein the clamp arm is pivotably coupled to the inner tube portion, wherein the inner tube portion comprises a second bayonet pin, wherein the inner tubular actuation member comprises a second slot, and wherein the second bayonet pin and second slot form a bayonet connection. 15. The surgical instrument of claim 14 wherein the second slot comprises a retention feature to selectively retain the second bayonet pin therein. 16. The surgical instrument of claim 14 wherein the clamp arm comprises a curved arm, wherein the blade assembly comprises a curved blade, wherein a key and longitudinal slot align the curved arm with the curved blade when the key is inserted into the longitudinal slot. 17. The surgical instrument of claim 7 wherein the removable distal end assembly is threadably coupleable to a distal end of the first elongate member. 18. A surgical instrument comprising: (a) a body assembly comprising: i. a casing,ii. a proximal outer sheath extending distally from the casing,iii. a proximal inner tubular member disposed within the proximal outer sheath,iv. a waveguide disposed within the proximal inner tubular member, andv. a slip feature; and(b) an end effector comprising: i. a distal outer sheath, wherein the distal outer sheath is selectively coupleable to the proximal outer sheath,ii. a distal inner tubular member disposed within the distal outer sheath, wherein the distal inner tubular member is selectively coupleable to the proximal inner tubular member, andiii. a blade disposed within the distal inner tubular member, wherein the blade is selectively coupleable to the waveguide;wherein the entire end effector is operable to be coupled or decoupled from the proximal outer sheath, the proximal inner tubular member, and the waveguide as an assembly, wherein the slip feature is configured to limit the force applied to the proximal inner tubular member when the end effector is coupled to the proximal outer sheath, the proximal inner tubular member, and the waveguide. 19. The surgical instrument of claim 18, wherein the slip feature is disposed between the proximal outer sheath and the proximal inner tubular member. 20. A surgical instrument comprising: (a) a body assembly comprising: i. a casing,ii. a shaft extending distally from the casing,iii. an ultrasonic transducer at least partially disposed within the casing, andiv. a pivoting member, wherein the pivoting member is pivotably coupled to the casing, wherein a first end of the pivoting member comprises an electrical connector, wherein a second end of the pivoting member extends from the casing, wherein the pivoting member is configured to selectively electrically connect with the ultrasonic transducer and to further selectively prevent longitudinal translation of the ultrasonic transducer relative to the casing; and(b) an acoustic transmission assembly configured to removably couple with the transducer.
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