Surgical instrument for removing an implanted object
First Claim
Patent Images
1. A device for removing an implanted object from a body vessel, the device comprising:
- a handle;
a trigger movably coupled to the handle;
an elongated sheath extending from the handle, the elongated sheath comprising a proximal end, a distal end, and a lumen extending from the distal end toward the proximal end, wherein the lumen is configured to receive an implanted object, the elongated sheath further comprising a proximal portion and a distal portion;
a tubular outer member attached to the distal portion of the elongated sheath;
a pin attached to the tubular outer member and extending inwardly thereof;
a tubular inner member located within the tubular outer member, the tubular inner member comprising a proximal end, a distal end and an exterior surface therebetween, the distal end comprising a cutting surface, the exterior surface of the tubular inner member comprising a cam slot for receipt of and cooperation with the pin such that upon actuation of the handle, the tubular inner member rotates and the distal end of the tubular inner member extends beyond the tubular outer member; and
a rotary actuator disposed within the handle, the rotary actuator comprising a linear slide coupled to the trigger, the linear slide comprising a rolling ring bearing and an unthreaded shaft, wherein the unthreaded shaft is coupled to the tubular inner member, such that upon non-pivoting movement of the trigger relative to the handle, the tubular inner member rotates.
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Accused Products
Abstract
Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient'"'"'s vasculature system. Specifically, the tissue separating device includes a handle, an elongate sheath and a circular cutting blade that may extend from the distal end of the sheath upon actuating the handle. The elongate sheath, particularly its distal end, includes a non-uniform wall thickness having one or more thicker portions in the outer sheath, particularly the outer cam member, and/or one or more thicker portions in an inner member disposed radially inward of the blade.
707 Citations
16 Claims
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1. A device for removing an implanted object from a body vessel, the device comprising:
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a handle; a trigger movably coupled to the handle; an elongated sheath extending from the handle, the elongated sheath comprising a proximal end, a distal end, and a lumen extending from the distal end toward the proximal end, wherein the lumen is configured to receive an implanted object, the elongated sheath further comprising a proximal portion and a distal portion; a tubular outer member attached to the distal portion of the elongated sheath; a pin attached to the tubular outer member and extending inwardly thereof; a tubular inner member located within the tubular outer member, the tubular inner member comprising a proximal end, a distal end and an exterior surface therebetween, the distal end comprising a cutting surface, the exterior surface of the tubular inner member comprising a cam slot for receipt of and cooperation with the pin such that upon actuation of the handle, the tubular inner member rotates and the distal end of the tubular inner member extends beyond the tubular outer member; and a rotary actuator disposed within the handle, the rotary actuator comprising a linear slide coupled to the trigger, the linear slide comprising a rolling ring bearing and an unthreaded shaft, wherein the unthreaded shaft is coupled to the tubular inner member, such that upon non-pivoting movement of the trigger relative to the handle, the tubular inner member rotates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification