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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0092053 (2005-03-29) |
등록번호 | US8057508 (2011-11-01) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 352 인용 특허 : 151 |
A surgical instrument particularly suited to endoscopic use articulates an end effector by including an articulation mechanism in an elongate shaft that incorporates an electrically actuated polymer (EAP) articulation locking mechanism actuator. Thereby, additional options for articulation become fe
A surgical instrument particularly suited to endoscopic use articulates an end effector by including an articulation mechanism in an elongate shaft that incorporates an electrically actuated polymer (EAP) articulation locking mechanism actuator. Thereby, additional options for articulation become feasible, especially those that are actively powered and would otherwise dissipate heat and power if required to maintain position. Alternatively, a mechanically actuated articulation mechanism may be designed with reduced strength, and thus size, since the EAP articulation lock mechanism assists in preventing back driving after articulation. Versions of a. EAP articulation locking mechanism lock a pivoting articulation joint and others lock a flexible neck articulation joint.
What is claimed is: 1. A surgical instrument, comprising:an end effector;a handle portion comprising an articulation control and a locking control circuitry operably configured to produce an unlocking signal;an elongate shaft rotatable relative to the handle portion;an articulation mechanism compris
What is claimed is: 1. A surgical instrument, comprising:an end effector;a handle portion comprising an articulation control and a locking control circuitry operably configured to produce an unlocking signal;an elongate shaft rotatable relative to the handle portion;an articulation mechanism comprising:a proximal frame portion attached to the elongate shaft,a distal frame portion attached to the end effector and rotatably coupled to the proximal frame portion to form an articulation joint, andan articulation actuator responsive to the articulation control of the handle portion and coupled between the proximal and distal frame portions and operably configured to effect articulation therebetween; andan electrical locking mechanism positioned between the handle and the end effector and movably engageable between the proximal and distal frame portions to lock the end effector at an angle relative to the elongate shaft by locking the articulation joint, wherein the electrical locking mechanism comprises:a locking member attached to the proximal frame portion or the distal frame portion, wherein the locking member is biased to extend toward and engage the other one of the proximal frame portion or the distal frame portion to lock the articulation joint, wherein the locking mechanism further comprises a resilient member resiliently biasing the locking member to extend toward and engage the other one of the proximal frame portion or the distal frame portion to lock the articulation joint, wherein the locking member is located at the articulation joint, andan electroactive polymer actuator coupled with the locking member, wherein the electroactive polymer actuator is operatively configured and positioned to overcome the bias on the locking member and move the locking member when activated by the unlocking signal to unlock the articulation joint.
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