Surgical stapling and cutting instrument with improved firing system
First Claim
1. A surgical instrument comprising:
- an elongate channel assembly having a distal end and a proximal end, said elongate channel assembly constructed to operably support a staple cartridge assembly therein;
a knife assembly oriented for travel within said elongate channel assembly;
a first distal cable transition support operably mounted to said distal end of said elongate channel assembly;
at least one second cable transition support operably attached to said knife assembly; and
a first cable having a distal end affixed to said distal end of said elongate channel assembly, said first cable extending around said second cable transition support on said knife assembly and said first distal cable transition support and having a proximal end interfacing with a cable drive system;
a second distal cable transition support operably mounted to said distal end of said elongate channel assembly; and
a second cable having a distal end affixed to said distal end of said elongate channel assembly, said second cable extending around said second cable transition support on said knife assembly and said second distal cable transition support and having a proximal end interfacing with said cable drive system.
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Accused Products
Abstract
A surgical instrument comprising an elongate channel assembly that has a distal end and a proximal end and is constructed to operably support a staple cartridge assembly therein. The instrument may further include a knife assembly that is oriented for travel within the elongate channel assembly. At least one first cable transition support is operably mounted to the distal end of the elongate channel and at least one second cable transition support is operably attached to the knife assembly. A first cable is affixed to the distal end of the elongate channel assembly and extends around the first and second cable transition supports to interface with a cable drive system. In various embodiments, the cable drive system may comprise a winch assembly or a pinion driven rack.
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Citations
22 Claims
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1. A surgical instrument comprising:
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an elongate channel assembly having a distal end and a proximal end, said elongate channel assembly constructed to operably support a staple cartridge assembly therein; a knife assembly oriented for travel within said elongate channel assembly; a first distal cable transition support operably mounted to said distal end of said elongate channel assembly; at least one second cable transition support operably attached to said knife assembly; and a first cable having a distal end affixed to said distal end of said elongate channel assembly, said first cable extending around said second cable transition support on said knife assembly and said first distal cable transition support and having a proximal end interfacing with a cable drive system; a second distal cable transition support operably mounted to said distal end of said elongate channel assembly; and a second cable having a distal end affixed to said distal end of said elongate channel assembly, said second cable extending around said second cable transition support on said knife assembly and said second distal cable transition support and having a proximal end interfacing with said cable drive system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A surgical instrument, comprising:
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an elongate channel assembly having a distal end and a proximal end and constructed to operably support a staple cartridge therein; a knife assembly oriented for travel within said elongate channel assembly; first and second distal cable transition supports on said distal end of said elongate channel assembly; first and second proximal cable transition supports operably attached to said proximal end of said elongate channel assembly; a reciprocatable drive member; a first cable attached to said knife assembly and said reciprocatable drive member, said first cable operably supported on said first distal cable transition support and said first proximal cable transition support; and a second cable having one end attached to said knife assembly and another end attached to said reciprocatable drive member, said second cable operably supported on said second distal transition support and said second proximal transition support. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A surgical instrument, comprising:
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a handle assembly; an elongate closure tube assembly operably coupled to said handle assembly; an elongate channel assembly having a proximal end operably interfacing with said elongate closure tube assembly, said elongate channel assembly constructed to operably support a staple cartridge therein; a knife assembly oriented for travel within said elongate channel assembly; two first distal cable transition supports operably attached to said distal end of said elongate channel assembly; at least one second cable transition support operably attached to said knife assembly; a first cable having a first anchor segment affixed to a first point of attachment on said distal end of said elongate channel assembly, said first cable extending from said first point of attachment around one of said first cable transition supports and said second cable transition support to interface with a cable drive assembly operably supported by said handle assembly; and a second cable having a second anchor segment affixed to a second point of attachment on said distal end of said elongate channel assembly, said second cable extending from said second point of attachment around the other one of said first cable transition supports and said second cable transition support to interface with said cable drive assembly. - View Dependent Claims (20)
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21. A surgical instrument, comprising:
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a handle assembly; an elongate channel assembly having a distal end and a proximal end operably interfacing with said elongate closure tube assembly, said elongate channel assembly constructed to operably support a staple cartridge therein; a knife assembly oriented for travel within said elongate channel assembly; first and second distal cable transition supports on said distal end of said elongate channel assembly; first and second proximal cable transition supports on said proximal end of said elongate channel assembly; a reciprocatable drive member; a first cable attached to said knife assembly and said reciprocatable drive member, said first cable operably received on said first distal cable transition support and said first proximal cable transition support; and a second cable attached to said knife assembly and said reciprocatable drive member, said second cable operably received on said second distal transition support and said second proximal transition support. - View Dependent Claims (22)
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Specification