Ergonomic surgical instruments
First Claim
Patent Images
1. A surgical instrument, comprising:
- a handle assembly, comprising;
a body portion extending parallel to a longitudinal axis, wherein a proximal end of the body portion is adapted to receive an ultrasonic transducer;
a fixed handle portion interfaced with the body portion and extending downwardly from the body portion and away from the longitudinal axis;
a stabilization tail, wherein the stabilization tail is positioned at about an intersection of the body portion and the fixed handle portion, the stabilization tail extending proximally from the body portion; and
a removable handle portion, comprising;
a snap feature extending away from a surface of the removable handle portion and positioned to snap into an opening of the fixed handle portion to removably couple the removable handle portion to the fixed handle portion; and
a loop element positioned proximally from the fixed handle portion, wherein the loop element comprises a tail portion that defines a cavity to receive the stabilization tail;
a shaft extending distally from the handle assembly along the longitudinal axis;
an end effector positioned at a distal end of the shaft;
a trigger movably coupled to the handle assembly, wherein the trigger is configured to be actuated by a proximally directed force, and wherein the trigger comprises;
a proximal trigger portion having a first length and comprising a distally-facing surface extending for at least part of the first length; and
a distal trigger hook having a second length, wherein the second length is less than the first length, wherein the distal trigger hook is coupled to the proximal trigger portion, wherein the distal trigger hook comprises a proximally-facing surface extending for at least part of the second length;
an actuation switch positioned upwardly from the trigger, wherein the actuation switch is actuatable in a substantially proximal direction; and
a shaft rotation knob for rotating the shaft about the longitudinal axis, wherein the shaft rotation knob is positioned to rotate about the longitudinal axis.
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Accused Products
Abstract
A surgical instrument comprising a trigger configured to be actuated by a proximally directed force and by a distally directed force. The trigger may comprise a proximal trigger portion having a first length and a distal trigger hook comprising a distal portion having a second length. The second length may be less than the first length. The distal trigger hook may be coupled to the proximal trigger portion.
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Citations
26 Claims
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1. A surgical instrument, comprising:
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a handle assembly, comprising; a body portion extending parallel to a longitudinal axis, wherein a proximal end of the body portion is adapted to receive an ultrasonic transducer; a fixed handle portion interfaced with the body portion and extending downwardly from the body portion and away from the longitudinal axis; a stabilization tail, wherein the stabilization tail is positioned at about an intersection of the body portion and the fixed handle portion, the stabilization tail extending proximally from the body portion; and a removable handle portion, comprising; a snap feature extending away from a surface of the removable handle portion and positioned to snap into an opening of the fixed handle portion to removably couple the removable handle portion to the fixed handle portion; and a loop element positioned proximally from the fixed handle portion, wherein the loop element comprises a tail portion that defines a cavity to receive the stabilization tail; a shaft extending distally from the handle assembly along the longitudinal axis; an end effector positioned at a distal end of the shaft; a trigger movably coupled to the handle assembly, wherein the trigger is configured to be actuated by a proximally directed force, and wherein the trigger comprises; a proximal trigger portion having a first length and comprising a distally-facing surface extending for at least part of the first length; and a distal trigger hook having a second length, wherein the second length is less than the first length, wherein the distal trigger hook is coupled to the proximal trigger portion, wherein the distal trigger hook comprises a proximally-facing surface extending for at least part of the second length; an actuation switch positioned upwardly from the trigger, wherein the actuation switch is actuatable in a substantially proximal direction; and a shaft rotation knob for rotating the shaft about the longitudinal axis, wherein the shaft rotation knob is positioned to rotate about the longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A surgical instrument, comprising:
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a handle assembly, comprising; a body portion extending parallel to longitudinal axis; a fixed handle portion interfaced with the body portion and extending downwardly from the body portion and away from the longitudinal axis; a stabilization tail, wherein the stabilization tail is positioned at about an intersection of the body portion and the fixed handle portion, the stabilization tail extending proximally from the body portion; and a removable handle portion, comprising; a snap feature positioned to snap into an opening of the fixed handle portion to removably couple the removable handle portion to the fixed handle portion; and a loop element positioned proximally from the fixed handle portion, wherein the loop element comprises a tail portion that defines a cavity to receive the stabilization tail; a shaft extending distally from the handle assembly about the longitudinal axis; a trigger coupled to the handle assembly and alternately actuatable in a substantially proximal direction relative to the handle assembly from an open position to a closed position and in a substantially distal direction relative to the handle assembly from the closed position to the open position, wherein the trigger comprises; a proximal member extending downwardly from the body portion by a first distance, wherein the proximal member comprises a distally-facing surface configured to receive three fingers and extending for at least part of the first distance; and a distal member extending downwardly from the body portion by a second distance, wherein the distal member comprises a proximally-facing surface extending for at least part of the second distance, wherein the second distance is less than the first distance, and wherein the proximal member and the distal member define an aperture; an actuation switch positioned upwardly from the trigger, wherein the actuation switch is actuatable in a substantially proximal direction; and a shaft rotation knob for rotating a shaft of the surgical instrument about the longitudinal axis, wherein the shaft rotation knob is positioned to rotate about the longitudinal axis. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A hand-held surgical instrument, comprising:
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an end effector, comprising; an ultrasonic blade; and a clamp arm pivotable towards the ultrasonic blade; an elongate shaft extending along a longitudinal axis, wherein the end effector is positioned at about a distal portion of the elongate shaft; a handle assembly coupled to the elongate shaft at a proximal portion of the elongate shaft, the handle assembly comprising; a body portion extending proximally from the elongate shaft; a fixed handle portion extending downwardly from the body portion and away from the longitudinal axis; a stabilization tail, wherein the stabilization tail is positioned at about an intersection of the body portion and the fixed handle portion, the stabilization tail extending proximally from the body portion; and a removable handle portion, comprising; a post positioned to snap into an opening of the fixed handle portion to removably couple the removable handle portion to the fixed handle portion; and a loop element positioned proximally from the fixed handle portion, wherein the loop element comprises a tail portion that defines a cavity to receive the stabilization tail; a trigger to control the clamp arm, wherein the trigger is coupled to the handle assembly and alternately actuatable in a substantially proximal direction relative to the handle assembly from an open position to a closed position and in a substantially distal direction relative to the handle assembly from the closed position to the open position, and wherein the trigger comprises; a proximal member extending downwardly from the body portion by a first distance, wherein the proximal member comprises a distally-facing surface extending for at least part of the first distance; and a distal member extending downwardly from the body portion by a second distance, wherein the distal member comprises a proximally-facing surface extending for at least part of the second distance, wherein the second distance is less than the first distance, wherein the proximal member and the distal member define an aperture therebetween; an actuation switch positioned upwardly from the trigger, wherein the actuation switch is actuatable in a substantially proximal direction; and a shaft rotation knob for rotating the elongate shaft of the surgical instrument about the longitudinal axis, wherein the shaft rotation knob is positioned to rotate about the longitudinal axis. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification