Endoscopic bipolar multiple sample bioptome
First Claim
1. A bipolar bioptome comprising:
- a proximal handle assembly including an actuator;
a distal end effector assembly including electrically conductive end effectors and an electrically conductive distal member proximate to and electrically isolated from the end effectors, the distal member being movable relative to the end effectors;
a connection member mechanically coupling the actuator to the end effector assembly, the connection member having first and second electrically conductive portions, wherein actuation of the actuator causes the distal member to move relative to the end effectors and thereby open and close the end effectors; and
an electrical coupling for supplying one pole of a current source through the first conductive portion to the distal member and the other pole of the current source through the second conductive portion to the end effectors so that current flows between the distal member and the end effectors during a biopsy procedure.
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Accused Products
Abstract
An endoscopic bipolar multiple sample bioptome includes a relatively long conductive flexible member having a lumen with an axially displaceable conductive wire extending therethrough and covered with an electrically insulating sheath. The proximal ends of the flexible member and wire are coupled to a manual actuation device for axially displacing one of the flexible member and wire relative to the other and the manual actuation device is provided with bipolar electrical couplings for electrically coupling one pole of a current source to the flexible member and the other pole of the current source to the wire. The distal end of the flexible member is mechanically and electrically coupled to a partially conductive cylinder having a distal edge and the distal end of the wire is mechanically and electrically coupled to the jaw assembly. The jaw assembly includes a pair of opposed toothed jaw cups each of which is coupled by a narrow resilient arm to a base member. The base member is mounted inside the cylinder and axial movement of the base member relative to the cylinder draws the necks of the jaws into the cylinder to bring the jaw cups together in a biting action. The cylinder is substantially non-conductive with portions of its exterior being conductive. Cautery current flows between the jaw assembly and the conductive portion(s) of the cylinder by way of tissue which is being cauterized.
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Citations
28 Claims
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1. A bipolar bioptome comprising:
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a proximal handle assembly including an actuator; a distal end effector assembly including electrically conductive end effectors and an electrically conductive distal member proximate to and electrically isolated from the end effectors, the distal member being movable relative to the end effectors; a connection member mechanically coupling the actuator to the end effector assembly, the connection member having first and second electrically conductive portions, wherein actuation of the actuator causes the distal member to move relative to the end effectors and thereby open and close the end effectors; and an electrical coupling for supplying one pole of a current source through the first conductive portion to the distal member and the other pole of the current source through the second conductive portion to the end effectors so that current flows between the distal member and the end effectors during a biopsy procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A bipolar bioptome comprising:
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a proximal handle assembly including an actuator; a distal end effector assembly including electrically conductive end effectors and an electrically conductive actuation member electrically isolated from the end effectors and movable relative to the end effectors; an electrically conductive flexible member and an electrically conductive control member mechanically coupling the actuator to the end effector assembly such that actuation of the actuator causes the actuation member to move relative to the end effectors and thereby open and close the end effectors, wherein the flexible member and the control member are electrically isolated from each other, and wherein the flexible member is electrically coupled to one of the actuation member and the end effectors and the control member is electrically coupled to the remaining other of the actuation member and the end effectors; and an electrical coupling for supplying one pole of a current source to the flexible member and the other pole of the current source to the control member so that current flows between the actuation member and the end effectors during a biopsy procedure. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification