Single lumen cautery forceps
First Claim
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1. A surgical device comprising:
- an inner member having a proximal end and a compliant distal end, the inner member including a pair of electrode channels that open at the distal end, the distal end further including a lumen opening;
a pair of electrodes configured to deliver energy, wherein a respective one of the pair of electrodes is configured to be disposed in each electrode channel such that distal ends of each of the electrodes are arranged to protrude from the distal end of the inner member;
an outer cannula extending about a portion of the inner member and being movable along a long axis relative to the inner member between a first position and a second position to selectively compress the compliant distal end of the inner member;
a support member and a rail member, the inner member being axially fixed with respect to the support member, the outer cannula mount being fixedly coupled to the rail member; and
a handle configured to move the outer cannula between the first and second positions by moving the rail axially relative to the support member.
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Abstract
Multiple surgical devices that may be used during surgical procedures are shown and described herein. A surgical device includes an outer cannula and an inner member that has a pair of electrodes positioned at a distal end. The inner member defines an aspiration delivery channel with an opening. The inner member further defines a pair of electrode channels within which the electrodes are positioned. A handle assembly actuates the outer cannula relative to the inner member, thereby adjusting a size of the opening of the aspiration delivery channel. An irrigation hub is provided to deliver irrigation through the surgical device to the electrode channels.
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Citations
19 Claims
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1. A surgical device comprising:
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an inner member having a proximal end and a compliant distal end, the inner member including a pair of electrode channels that open at the distal end, the distal end further including a lumen opening; a pair of electrodes configured to deliver energy, wherein a respective one of the pair of electrodes is configured to be disposed in each electrode channel such that distal ends of each of the electrodes are arranged to protrude from the distal end of the inner member; an outer cannula extending about a portion of the inner member and being movable along a long axis relative to the inner member between a first position and a second position to selectively compress the compliant distal end of the inner member; a support member and a rail member, the inner member being axially fixed with respect to the support member, the outer cannula mount being fixedly coupled to the rail member; and a handle configured to move the outer cannula between the first and second positions by moving the rail axially relative to the support member. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surgical device comprising:
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a support member; an outer cannula mount fixedly mounted to a rail member, the outer cannula mount defining a cavity and an aperture in fluid communication with the cavity; an outer cannula coupled to the outer cannula; an inner member disposed within the outer cannula and having a pair of electrodes extending from a flexible tip member positioned at a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member and further defines a pair of electrode channels extending around the electrodes, the electrode channels being in fluid communication with the cavity; and a handle assembly configured to move the rail member with respect to the support member to move the outer cannula over the inner member, thereby compressing the flexible tip member within the outer cannula. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A surgical device comprising:
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a support member; an inner member defining an aspiration chamber, a first electrode passage, and a second electrode passage, the inner member defining a long axis and being axially fixed relative to the support member; a first electrode disposed within the first electrode passage, a diameter of the first electrode being less than a diameter of the first electrode passage; a second electrode disposed within the second electrode passage, a diameter of the second electrode being less than a diameter of the second electrode passage; an irrigation hub coupled to the inner member, the irrigation hub having a first irrigation passage fluidly coupled with the first electrode passage and a second irrigation passage fluidly coupled with the second electrode passage; a rail member; an outer cannula mount coupled to the rail member, the outer cannula mount extending about a portion of the irrigation hub and having an aperture in fluid communication with the first irrigation passage and the second irrigation passage; an outer cannula coupled to the outer cannula mount and being fitted about a portion of the inner member; and a handle assembly configured to axially move the rail member relative to the support member. - View Dependent Claims (17, 18, 19)
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Specification