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US 5,350,391 AGranted
Laparoscopic instruments
OwnerBenedetto Iacovelliinventor
Life of this patent
Estimating the term…
Abstract
A laparoscopic surgical instrument is disclosed. The instrument generally comprises an elongated hollow shaft having at one end a pair of scissors and at the opposite end a pair of handles to control the scissors. The blades may be opened and closed when one handle is pivoted while the other handle is fixed. However, when both handles are rotated simultaneously the orientation of the blades relative to shaft changes so as to allow the blades to effectively cut or grasp curved tissues lying in a plurality of planes. Additionally, apparatus is provided to allow the blades to rotate about the longitudinal axis extending therethrough. A depth gauge for laparoscopic scissors is also disclosed.
Claims58
A surgical instrument, especially for use in laparoscopic surgery comprising:
- an elongated shaft bearing distal and proximal ends;
- a surgical implement pivotably mounted to the distal end of said shaft, said surgical implement comprising a pair of members movable with respect to one another for performing an operative step;
- first and second handles pivotally mounted to the proximal end of the shaft, said handles being pivotally movable together relative to the shaft and pivotable relative to each other;
- said handles being operatively connected to said surgical implement such that pivotable movement of both of said handles together in one direction simultaneously pivots both of said members of said implement together in one direction relative to the shaft, and pivotable movement of said first handle relative to said second handle moves the members of the surgical implement relative to each other to perform said operative step.
1 more element
A surgical instrument, especially useful for laparoscopic surgery comprising:
- a first tubular member having distal and proximal ends;
- a second tubular member, having distal and proximal ends, the proximal end of the second tubular member being pivotably mounted to the distal end of said first tubular member by a hinge;
- a third tubular member, having distal and proximal ends, the proximal end of the third tubular member being rotatably coupled to the distal end of said second tubular member;
- a surgical implement pivotably mounted to the distal end of said third tubular member, said surgical implement comprising a pair of members movable with respect to one another for performing an operative step;
- first and second handles mounted at the proximal end of said first tubular member adapted to receive the user's fingers each of said handles being independently movable with respect to said first tubular member;
- means extending through said first tubular member for pivoting said second tubular member relative to said first tubular member, about said hinge;
- a first cable which is secured at one end to the first of said handles and at the other end to said implement;
- and,
- a second cable secured at one end to said rotatable member and at its other end to said third tubular member.
6 more elements
A surgical instrument, especially useful for laparoscopic surgery comprising:
- a first tubular shaft having a distal end and a proximal end, said distal end adapted to be inserted within a patient's body, and said proximal end adapted to be located outside a patient's body;
- an implement pivotably mounted to the distal end of said shaft, said implement having a pair of members adapted to open and close in a scissor-like fashion;
- a pair of handles pivotably mounted to the proximal end of said shaft comprising a first handle adapted to receive the user's fingers and a second handle adapted to receive the user's thumb, both of said handles being independently movable with respect to said first shaft;
- a pair of reciprocally movable connecting elements extending through said first tubular shaft, connected at their proximal ends to said handles and at their distal ends to said implement;
- a locking device which prevents movement of one of said handles while allowing movement of said other handle;
- whereby when said first handle is locked, movement of said second handle causes said second implement member to move relative to said first implement member, and whereby moving both handles simultaneously causes both implement members to simultaneously change its pivot angle relative to the longitudinal axis of said shaft.
3 more elements
A surgical instrument, especially useful for laparoscopic surgery, comprising:
- an elongated tubular shaft having a distal end and a proximal end, said distal end adapted to be inserted within a patient's body;
- a pair of scissors pivotally mounted to the distal end of said shaft, said scissors adapted to open and close within a first plane, and wherein the angle of said scissors relative to the longitudinal axis of said shaft is adjustable;
- control apparatus mounted to the proximal end of said shaft for opening and closing said scissors and for adjusting the angle of said scissors relative to the longitudinal axis of said shaft;
- said control apparatus comprising a pair of handles, each being independently moveable with respect to each other, said scissors being operatively connected to said handles wherein movement of both of said handles together in one direction changes the angle of said scissors relative to the longitudinal axis of said shaft.
1 more element
A surgical instrument, especially for use in laparoscopic surgery comprising:
- an elongated shaft bearing distal and proximal ends;
- a surgical implement pivotably mounted to the distal end of said shaft, said surgical implement comprising a pair of members movable with respect to one another for performing an operative step;
- first and second handles pivotally mounted to the proximal end of the shaft, said handles being pivotably movable together relative to the shaft and pivotable relative to each other;
- said handles being operatively connected to said surgical implement such that pivotable movement of both of said handles together in one direction simultaneously pivots the surgical implement relative to the shaft and pivotable movement of said first handle relative to said second handle moves the members of the surgical implement relative to each other to perform said operative step;
- wherein said shaft comprises a first tubular member;
- means extending through said tubular member for operating said surgical implement comprising a first linkage member connecting the first handle to one member of the surgical implement, a second linkage member connecting the second handle to another member of the surgical implement.
3 more elements
A surgical instrument, especially for use in laparoscopic surgery, comprising:
- an elongated shaft bearing distal and proximal ends;
- a pair of scissor-like members pivotably mounted to the distal end of said shaft by hinges, said members adapted to be opened and closed with respect to one another for performing an operative step;
- and
- means for opening and closing said members,
- wherein said members may be movable together about said hinge relative to said shaft independent of the opened or closed position of said members;
- and
- wherein said members may be substantially fully rotatable about the horizontal axis extending through said members.
4 more elements
A surgical instrument, especially for use in laparoscopic surgery comprising:
- an elongated shaft bearing distal and proximal ends said distal end comprising a first section and a second section in proximal relation to said first section, said first section rotatably coupled to said second section;
- a surgical implement pivotably mounted to said first section, said surgical implement comprising a pair of members movable with respect to one another for performing an operative step;
- first and second handles pivotally mounted to the proximal end of the shaft, said handles being pivotably movable relative to the shaft and to each other;
- said handles being operatively connected to said surgical implement such that simultaneous movement of said handles pivots the surgical implement relative to the shaft and movement of said first handle relative to said second handle moves the members of the surgical implement relative to each other to perform said operative step and wherein said implement is pivotable about the longitudinal axis extending therethrough;
- said first section comprising:
- a tubular body closed by distal and proximal side walls, said distal side wall defining an aperature through which said implement may protrude, said proximal side wall conically shaped and defining an annular recess
- said second section comprising:
- a tubular body having at its distal end an annular flange for engaging said annular recess of said first section.
5 more elements
A surgical instrument, especially for use in laparoscopic surgery, comprising:
- an elongated shaft bearing distal and proximal ends;
- a surgical implement pivotally mounted to the distal end of such shaft, such surgical implement comprising a pair of members movable with respect to one another for performing an operative step,
- said elongated shaft and surgical implement both being of a size enabling them to pass through a trocar cannula;
- first and second handles pivotally mounted to the proximal end of this shaft, said handles being pivotally movable together relative to the shaft and pivotable relative to each other;
- said handles being operatively connected to said surgical implement such that pivotable movement of both of said handles together in one direction simultaneously pivots the surgical implement relative to the shaft, and pivotable movement of said first handle relative to said second handle moves the members of the surgical implement relative to each other to perform said operative step.
2 more elements
A surgical instrument, especially for use in laparoscopic surgery, comprising:
- an elongated tubular shaft having a distal end and a proximal end, said distal end adapted to be inserted within a patient's body;
- a pair of scissors pivotably mounted to the distal end of said shaft, said scissors adapted to open and close within a first plane, and wherein the angle of said scissors relative to the longitudinal axis of said shaft is adjustable,
- said elongated shaft and surgical instrument both being of a size enabling them to pass through a trocar cannula;
- control apparatus mounted to the proximal end of said shaft for opening and closing said scissors and for adjusting the angle of said scissors relative to the longitudinal axis of said shaft;
- said control apparatus comprising a pair of handles operatively connecting said scissors.
2 more elements
Dependencies are inferred from the claim text.