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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0604106 (1996-02-20) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 1035 인용 특허 : 44 |
This invention provides surgical instruments having improved lockout mechanisms. The surgical instruments are of the type which have an operating mechanism for repeatedly performing a surgical procedure and a control mechanism for manipulating the instrument between a neutral position and a ready po
This invention provides surgical instruments having improved lockout mechanisms. The surgical instruments are of the type which have an operating mechanism for repeatedly performing a surgical procedure and a control mechanism for manipulating the instrument between a neutral position and a ready position for performing the surgical procedure. The instruments comprise a passive lockout assembly and an active lockout assembly. The passive lockout assembly includes a key which is operatively connected to the control mechanism. The key immobilizes the operating mechanism unless the instrument is in the ready position. The active lockout assembly includes a plunger operatively connected to a manually operable switch. The plunger immobilizes the operating mechanism unless the switch is operated and reengages the operating mechanism each time the instrument is used. Each time the instrument is used to perform the surgical operation, therefore, the instrument of the instrument must be in the ready position and the active lockout switch must be operated. Otherwise, the operating mechanism of the instrument is immobilized by one or both of the passive and active lockout assemblies.
[ We claim:] [1.] A surgical instrument including an operating mechanism for repeatedly performing a surgical procedure and a control mechanism for manipulating the instrument between a neutral position and a ready position for performing the surgical procedure, said instrument comprising:a passive
[ We claim:] [1.] A surgical instrument including an operating mechanism for repeatedly performing a surgical procedure and a control mechanism for manipulating the instrument between a neutral position and a ready position for performing the surgical procedure, said instrument comprising:a passive lockout assembly including a key operatively connected to the control mechanism for reciprocating movement between a first position corresponding to the neutral position of said instrument in which said key immobilizes the operating mechanism, thereby preventing said instrument from performing the surgical procedure, and a second position corresponding to the ready position of said instrument in which said key releases the operating mechanism; andan active lockout assembly including a plunger operatively connected to a manually operable switch for reciprocating movement between a first position in which said plunger immobilizes the operating mechanism, thereby preventing the instrument from performing the surgical procedure, and a second position in which said plunger releases the operating mechanism, said plunger being movable to its second position by manual operation of said switch and being biased toward its first position such that said plunger returns to its first position after actuation of the operating mechanism;whereby each time said instrument is used to perform the surgical operation said instrument must be in the ready position and said active lockout switch must be operated, the operating mechanism of said instrument otherwise being immobilized by one or both of said passive and active lockout assemblies.
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