Back to results
US 5,893,835 AGranted
Ultrasonic clamp coagulator apparatus having dual rotational positioning
AssigneeEthicon Endo-Surgery, Inc.
InventorsDavid Alan Witt, Gregory D. Bishop
Life of this patent
Estimating the term…
Abstract
An ultrasonic surgical clamp coagulator apparatus is configured to effect cutting, coagulation, and clamping of tissue by cooperation of a clamping mechanism of the apparatus with an associated ultrasonic end-effector. Rotational positioning of an elongated portion and end-effector is achieved by the provision of a clutch mechanism incorporated into a housing apparatus. The arrangement permits the elongated portion to be rotatably positioned with respect to the apparatus housing and permits rotation of a the end-effector relative to the elongated portion.
Claims26
An ultrasonic surgical instrument comprising:
- a clamp coagulator apparatus having a housing;
- a drive unit attachable to the housing;
- an outer tubular sheath having a proximal end rotatably joined to said housing, and a distal end;
- an actuating member reciprocally positioned within said outer tubular sheath to rotate therewith with respect to said housing;
- an ultrasonic waveguide positioned within said outer tubular sheath and having an end-effector extending distally of said distal end of said outer tubular sheath;
- a clamp arm pivotally mounted on said distal end of said outer tubular sheath to pivotally move with respect to said end-effector to clamp tissue between said clamp arm and said end-effector, said clamp arm being operatively connected to said actuating member so that reciprocable movement of said actuating member pivotally moves said clamp arm with respect to said end-effector;
- an operating lever pivotally mounted on said housing;
- an actuator collar interconnecting said operating lever with said actuating member so that pivotal movement of said operating lever reciprocally moves said actuating member for pivotally moving said clamp arm;
- a rotational knob mounted on the outer tubular sheath to effect rotation of the outer sheath;
- and
- a clutch mechanism coupled to the waveguide for rotational movement therewith, the clutch mechanism having a distal end to cooperatively engage with the rotational knob such that rotational movement of the knob causes rotation movement of the clutch mechanism, the waveguide, and the clamp arm, the clutch mechanism also being movable to be disengaged from the rotational knob when the drive unit is moved proximally such that rotation of the drive unit rotates the clutch mechanism to turn the waveguide relative to the clamp arm.
8 more elements
An ultrasonic surgical clamp coagulator apparatus comprising:
- a housing;
- an outer sheath having a proximal end rotatably joined to said housing, and a distal end;
- a rotational knob mounted on said outer sheath to effect rotation of the outer sheath with respect to said housing;
- an actuating member reciprocally positioned within said outer tubular sheath to rotate therewith with respect to said housing;
- an ultrasonic waveguide positioned within said outer tubular sheath and having an end-effector extending distally of said distal end of said outer tubular sheath;
- a clamp arm pivotally mounted on said distal end of said outer tubular sheath to pivotally move with respect to said end-effector to clamp tissue between said clamp arm and said end-effector, said clamp arm being operatively connected to said actuating member so that reciprocable movement of said actuating member pivotally moves said clamp arm with respect to said end-effector;
- an operating lever pivotally mounted on said housing;
- an actuator collar interconnecting said operating lever with said actuating member so that pivotal movement of said operating lever reciprocally moves said actuating member for pivotally moving said clamp arm;
- and
- a clutch mechanism having a driven surface biased against the rotational knob so that rotation of the knob moves the clamp arm and waveguide relative to the housing, the clutch mechanism reciprocally movable to disengage the driven surface from the rotational knob so that rotation of the clutch mechanism rotates the end effector with respect to the clamp arm.
7 more elements
An ultrasonic surgical clamp apparatus comprising:
- a housing;
- an outer sheath rotatably coupled to the housing;
- an ultrasonic waveguide positioned within the outer sheath, the waveguide having an end-effector;
- and
- a clutch mechanism coupled to the waveguide, the clutch mechanism having a first rotational position such that rotation of the clutch mechanism causes rotation of the outer sheath and the end-effector relative to the housing and a second rotational position such that the rotation of the clutch mechanism causes rotation of the end effector relative to the outer sheath.
2 more elements
A method of applying ultrasonic energy to tissue of a patient comprising the steps of:
- providing a clamp coagulator apparatus having a housing and an outer sheath extending therefrom, the outer sheath having an end effector extending therefrom and a surgical tool to cooperatively engage with the end-effector;
- rotating the end effector with respect to the surgical tool;
- and
- rotating the end effector and surgical tool with respect to the housing of the clamp coagulator;
- vibrating the end effector at a selected ultrasonic frequency;
- and
- contacting the tissue of the patient with the end effector.
4 more elements
Dependencies are inferred from the claim text.