[특허]Blade retention mechanism for surgical instrument

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B23B-031/107 A61B-017/32 B23B-031/20 A61B-017/00 A61B-017/29 A61B-017/3207
출원번호	US-0835517 (2013-03-15)
등록번호	US-9265516 (2016-02-23)
발명자 / 주소	Casey, Jay A. Edwards, Kevin C. Matusaitis, Tomas
출원인 / 주소	GYRUS ACMI, Inc.
대리인 / 주소	The Dobrusin Law Firm, P.C.
인용정보	피인용 횟수 : 37 인용 특허 : 26

초록 ▼

A surgical apparatus which includes a handpiece having a passage. The retention assembly includes a pair of radially movable buttons, aligned in axially extending passages in communication with the passage and can engage with and cause rotational movement of a collet member assembly rotatably suppor

A surgical apparatus which includes a handpiece having a passage. The retention assembly includes a pair of radially movable buttons, aligned in axially extending passages in communication with the passage and can engage with and cause rotational movement of a collet member assembly rotatably supported in the passage. The collet assembly includes rolling lock members which can be moved by the collet member from a lock position, in which the lock members are forced by the wall of the passage to extend inwardly of the collet member and an unlocked position, in which the lock members are aligned with a recess in the wall of the passage and are not forced to extend inwardly of the collet member. The surgical apparatus may find particular use with irrigation fluid, suction, and powering of a surgical tool. The passage may include a cutting blade retention assembly integrated in the passage.

대표청구항 ▼

1. A surgical apparatus, comprising; a. a main body including; i. a first generally cylindrical passage having a proximal end and a distal end;ii. a second radially extending passage extending from the first generally cylindrical passage; andiii. a recess;b. a collet member supported for rotational

1. A surgical apparatus, comprising; a. a main body including; i. a first generally cylindrical passage having a proximal end and a distal end;ii. a second radially extending passage extending from the first generally cylindrical passage; andiii. a recess;b. a collet member supported for rotational movement in the first cylindrical passage of the main body, the collet member including: i. a first surface;ii. a passage having a first length; andiii. an inner surface;c. a biasing member biasing the collet member in a first rotational direction within the first generally cylindrical passage of the main body;d. a lack member having a second length, the lock member aligned in the passage of the collet member and extending radially inward beyond the inner surface of the collet member, the second length of the lock member being greater than the first length of the passage of the collet member wherein the collet member limits the lock member and retains the lock member within the first generally cylindrical passage of the main body; ande. an actuator radially movable in the second radially extending passage of the main body, the actuator including a second surface for engaging the first surface of the collet member wherein radially inward movement of the actuator against a force of the biasing member rotates the collet member within the first generally cylindrical passage and moves the lock member from a first locked position to a second unlocked position wherein the lock member can move radially outward to be at least partially located in the recess of the main body. 2. The surgical apparatus of claim 1 wherein the actuator comprises two buttons and the second radially extending passage of the main body comprises two radially extending portions located on opposite sides of the first generally cylindrical passage and wherein a button is located in each radially extending portion wherein radially inward movement of the two buttons rotates the collet member within the first generally cylindrical passage. 3. The surgical apparatus of claim 2 the lock member comprises a ball and the collet member includes a hole and wherein the ball moves radially in the hole when the surgical apparatus moves from the first locked position to the second unlocked position. 4. The surgical apparatus of claim 3 wherein the lock member comprises four equally spaced balls and the collet member includes four equally spaced holes. 5. The surgical apparatus of claim 2 further comprising a cover member aligned with the distal end of the collet member for securing the collet member in the passage of the main body. 6. The surgical apparatus of claim 2 further comprising a disc-shaped cover member aligned with the distal end of the collet member for covering the collet member and at least a portion of the distal end of the first generally cylindrical passage of the main body. 7. The surgical apparatus of claim 1 further comprising a disc-shaped cover member aligned with the distal end of the collet member for covering the collet member and at least a portion of the distal end of the first generally cylindrical passage of the main body. 8. The surgical apparatus of claim 7 wherein the disc-shaped cover member includes first and second tabs each extending in a direction aligned with an axis of the first generally cylindrical passage of the main body and wherein the first and second tabs are oppositely spaced. 9. The surgical apparatus of claim 1 further comprising a cover member aligned with the distal end of the collet member for covering the collet member and at least a portion of the distal end of the first generally cylindrical passage of the main body. 10. A surgical apparatus, comprising: a. a main body including a nose portion for selectively coupling a disposable surgical instrument to the surgical apparatus, the nose portion including: i. a first generally cylindrical passage having a proximal end and a distal end;ii. a second radially extending passage extending from the first generally cylindrical passage; andiii. a radially and circumferentially extending channel;b. a collet member having a proximal end and a distal end, the collet member supported for rotational movement in the first generally cylindrical passage of the nose portion, the collet member including: i. a first radially extending member including a first surface;ii a second radially extending member including a second surface extending substantially perpendicular to an outer surface of the collet member;iii. a passage having a first length; andiv. an inner surfacec. a biasing member having a first end and a second end, the biasing member located in the first generally cylindrical passage and biasing the collet member in a first rotational direction;d. a lock member having a second length, the lock member aligned in the passage of the collet member and extending radially inward beyond the inner surface of the collet member, the second length of the lock member being greater than the first length of the passage of the collet member wherein the collet member limits the lock member and retains the lock member within the first generally cylindrical passage of the main body; ande. a first actuator radially movable in the second radially extending passage of the main body, the first actuator including a second surface for engaging the first surface of the first radially extending member of the collet member wherein radially inward movement of the first actuator against a force of the biasing member rotates the collet member within the first generally cylindrical passage and moves the lock member from a first locked position to a second unlocked position wherein the lock member is at least partially located in the radially and circumferentially extending channel of the main body. 11. The surgical apparatus of claim 10 further comprising a cover member aligned with the distal end of the collet member for securing the collet member in the passage of the main body. 12. The surgical apparatus of claim 11 wherein the cover member includes first and second tabs each extending in a direction aligned with an axis of the first generally cylindrical passage of the main body and wherein the first and second tabs are oppositely spaced. 13. The surgical apparatus of claim 10 further comprising a disc-shaped cover member aligned with the distal end of the collet member for covering the collet member and at least a portion of the distal end of the first generally cylindrical passage of the main body. 14. The surgical apparatus of claim 10 wherein a. the main body further includes a third radially extending passage located opposite the first radially extending passage andb. the collet member further includes a second radially extending member including a third surface, the second radially extending member located opposite the first radially extending member; andc. the surgical apparatus further comprising; i. a second actuator radially movable in the third radially extending passage of the main body, the second actuator including a second surface for engaging the third surface of the second radially extending member of the collet member wherein radially inward movement of both the first actuator and the second actuators against the force of the biasing member rotates the collet member within the first generally cylindrical passage and moves the lock member from the first locked position to the second unlocked position.

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A	생활필수품
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[미국특허] Blade retention mechanism for surgical instrument 원문보기

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[미국특허] Blade retention mechanism for surgical instrument 원문보기

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