Anastomosis device and surgical tool actuation mechanism configurations
First Claim
1. A surgical tool comprising:
- an elongated body having a proximal end and a distal end;
at least two sets of tissue approximating structures that are extendible through and retractable back into the elongated body;
a single actuating mechanism at the proximal end of the elongated body for independently extending and retracting each of the at least two sets of tissue approximating structures, wherein the single actuating mechanism comprises a tubular body having an elongated opening at its proximal end, and an actuation insert moveably positioned within the elongated opening, wherein the actuation insert is slideable and rotatable relative to the tubular body; and
wherein the actuation insert of the single actuating mechanism is linearly pushable to activate one of the two sets of tissue approximating structures and linearly pullable to activate the other of the two sets of tissue approximating structures.
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Accused Products
Abstract
The tissue approximating structures for the anastomosis devices of the invention preferably include two sets of approximating structures or tines spaced from each other along the length of a catheter body that can be extended and retracted from the catheter body. Each of the sets of tissue approximating structures is preferably sequentially deployable in such a way that the surgeon can activate a first set of tines to engage a first tissue structure, verify that an adjacent second tissue structure is properly positioned relative to the first tissue structure, then activate a second set of tines to engage that adjacent second tissue structure. Each of the sets of tines is preferably controlled by a single actuation mechanism that is attached to the anastomosis device and is positioned outside the patient'"'"'s body.
70 Citations
13 Claims
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1. A surgical tool comprising:
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an elongated body having a proximal end and a distal end; at least two sets of tissue approximating structures that are extendible through and retractable back into the elongated body; a single actuating mechanism at the proximal end of the elongated body for independently extending and retracting each of the at least two sets of tissue approximating structures, wherein the single actuating mechanism comprises a tubular body having an elongated opening at its proximal end, and an actuation insert moveably positioned within the elongated opening, wherein the actuation insert is slideable and rotatable relative to the tubular body; and wherein the actuation insert of the single actuating mechanism is linearly pushable to activate one of the two sets of tissue approximating structures and linearly pullable to activate the other of the two sets of tissue approximating structures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An anastomosis device comprising:
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an elongated body having a proximal end and a distal end; a first and a second set of tissue approximating structures that are extendible through and retractable back into the elongated body; and a single actuating mechanism at the proximal end of the elongated body for independently extending and retracting the first and second sets of tissue approximating structures, wherein the single actuating mechanism comprises a guiding arm, a first advancement arm operatively engageable with the guiding arm, and a second advancement arm operatively engageable with the guiding arm; wherein the first set of tissue approximating structures is actuatable when the guiding arm is engaged with the first advancement arm, and wherein the second set of tissue approximating structures is actuatable when the guiding arm is engaged with the second advancement arm. - View Dependent Claims (10, 11, 12, 13)
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Specification