Pneumatically powered surgical cutting and fastening instrument with actuator at distal end
First Claim
1. A surgical instrument comprising:
- a distal member configured to support a pneumatically operated tool assembly;
an elongate shaft assembly having a distal end portion associated with said distal member and a proximal end portion; and
a drive member supported by said distal end portion of said elongate shaft assembly and fluidically coupled to a source of pneumatic power, said drive member configured to selectively apply at least two linear actuation motions to the pneumatically operated tool assembly supported by said distal member upon receipt of at least one pneumatic drive signal from the source of pneumatic power.
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Accused Products
Abstract
A surgical instrument that includes a distal member configured to receive a pneumatically operated tool assembly therein. The instrument may also include an elongate shaft assembly that has a distal end portion that is coupled to the distal member and a proximal end portion. A drive member may be supported by the distal end portion of the elongate shaft assembly and may be configured to apply at least two actuation motions to the pneumatically operated tool assembly upon receipt of at least one pneumatic drive signal from a source of pneumatic power. The drive member may comprise a dual-acting cylinder, a single-acting cylinder, a bellows assembly, etc. The distal end portion of the elongate shaft member may articulate relative to the proximal end portion thereof and/or the distal end portion of the elongate shaft assembly may be detachable from the proximal end portion.
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Citations
20 Claims
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1. A surgical instrument comprising:
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a distal member configured to support a pneumatically operated tool assembly; an elongate shaft assembly having a distal end portion associated with said distal member and a proximal end portion; and a drive member supported by said distal end portion of said elongate shaft assembly and fluidically coupled to a source of pneumatic power, said drive member configured to selectively apply at least two linear actuation motions to the pneumatically operated tool assembly supported by said distal member upon receipt of at least one pneumatic drive signal from the source of pneumatic power. - 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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a handle assembly; a closure drive supported by said handle assembly and configured to generate a closing motion and an opening motion; an actuator mechanism supported by said handle assembly, said actuator mechanism communicating with a source of pneumatic power to selectively produce at least one pneumatic actuation signal; an elongate shaft assembly having a distal end portion and a proximal end portion, said proximal end portion coupled to said handle assembly and communicating with said closure drive to transfer said opening and closing motions and said at least one pneumatic actuation signal; a drive member operably supported by a distal end portion of said elongate shaft assembly and being responsive to said at least one pneumatic actuation signal and configured to generate a linear firing motion and a linear retraction motion; and an end effector coupled to said distal end portion of said elongate shaft assembly, said end effector comprising; an elongate channel sized to receive a staple cartridge therein; an anvil pivotally coupled to said elongate channel and being pivotally responsive to said open and closing motions from said elongate shaft assembly; and a cutting and severing member operably supported within said elongate channel and being responsive to said linear firing and retraction motions from said drive member. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A surgical instrument comprising:
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a handle assembly; an elongate shaft assembly having a proximal end portion operably coupled to said handle assembly, said elongate shaft portion further having a distal end portion; means for operably supporting a pneumatically operated tool assembly coupled to said elongate shaft assembly; and means for generating at least one linear actuation force for application to the pneumatically operated tool supported by said means for operably supporting in response to at least one pneumatic drive signal from a source of pneumatic power fluidically coupled thereto, said means for generating supported by said distal end of said elongate shaft assembly. - View Dependent Claims (19, 20)
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Specification