Anastomotic ring applier device utilizing an electroactive polymer
First Claim
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1. A surgical instrument for implanting an anastomotic ring device, comprising:
- (i) a ring deployment mechanism configured to receive and deploy an anastomotic ring under a mechanical actuation force, the anastomotic ring comprising a first plurality of petals and a second plurality of petals, wherein the ring deployment mechanism comprises a plurality of distal fingers, a plurality of proximal fingers, and a central member positioned longitudinally between the plurality of distal fingers and the plurality of proximal fingers, wherein each distal finger comprises a proximal segment and a distal segment, wherein the proximal segment of each distal finger is hingedly connected at a first end to a corresponding distal segment of each distal finger and hingedly connected at a second end to the central member, wherein the distal segment of each distal finger is hingedly connected at a first end to a corresponding proximal segment of each distal finger and hingedly connected at a second end to a distal portion of the ring deployment mechanism, wherein the distal segment of each distal finger comprises an integral gripping slot, wherein each gripping slot of each distal finger is configured to receive a respective petal of the first plurality of petals of the anastomotic ring, wherein each proximal finger comprises a proximal segment and a distal segment, wherein the distal segment of each proximal finger is hingedly connected at a first end to a corresponding proximal segment of each proximal finger and hingedly connected at a second end to the central member, wherein the proximal segment of each proximal finger is hingedly connected at a first end to a corresponding distal segment of each proximal finger and hingedly connected at a second end to a proximal portion of the ring deployment mechanism, wherein the proximal segment of each proximal finger comprises an integral gripping slot, wherein each gripping slot of each proximal finger is configured to receive a respective petal of the second plurality of petals of the anastomotic ring, wherein the central member longitudinally separates the proximal segments of the distal fingers from the distal segments of the proximal fingers;
(ii) a power source for generating voltage; and
(iii) an electroactive polymer in communication with the ring deployment mechanism and operatively configured to produce the mechanical actuation force in response to the generated voltage.
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Abstract
A surgical instrument is operable to deploy an anastomotic ring device. The instrument comprises a ring deployment mechanism configured to receive and deploy the anastomotic ring through an actuating force. The instrument further comprises an electroactive polymer that is configured to receive voltage from a power source. The electroactive polymer is configured to convert the voltage to a mechanical actuating force. The electroactive polymer is further configured to apply the actuating force to the ring deployment mechanism to deploy the anastomotic ring.
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Citations
20 Claims
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1. A surgical instrument for implanting an anastomotic ring device, comprising:
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(i) a ring deployment mechanism configured to receive and deploy an anastomotic ring under a mechanical actuation force, the anastomotic ring comprising a first plurality of petals and a second plurality of petals, wherein the ring deployment mechanism comprises a plurality of distal fingers, a plurality of proximal fingers, and a central member positioned longitudinally between the plurality of distal fingers and the plurality of proximal fingers, wherein each distal finger comprises a proximal segment and a distal segment, wherein the proximal segment of each distal finger is hingedly connected at a first end to a corresponding distal segment of each distal finger and hingedly connected at a second end to the central member, wherein the distal segment of each distal finger is hingedly connected at a first end to a corresponding proximal segment of each distal finger and hingedly connected at a second end to a distal portion of the ring deployment mechanism, wherein the distal segment of each distal finger comprises an integral gripping slot, wherein each gripping slot of each distal finger is configured to receive a respective petal of the first plurality of petals of the anastomotic ring, wherein each proximal finger comprises a proximal segment and a distal segment, wherein the distal segment of each proximal finger is hingedly connected at a first end to a corresponding proximal segment of each proximal finger and hingedly connected at a second end to the central member, wherein the proximal segment of each proximal finger is hingedly connected at a first end to a corresponding distal segment of each proximal finger and hingedly connected at a second end to a proximal portion of the ring deployment mechanism, wherein the proximal segment of each proximal finger comprises an integral gripping slot, wherein each gripping slot of each proximal finger is configured to receive a respective petal of the second plurality of petals of the anastomotic ring, wherein the central member longitudinally separates the proximal segments of the distal fingers from the distal segments of the proximal fingers; (ii) a power source for generating voltage; and (iii) an electroactive polymer in communication with the ring deployment mechanism and operatively configured to produce the mechanical actuation force in response to the generated voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical instrument for implanting an anastomotic ring device, comprising:
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(i) a handle; (ii) an elongate shaft comprising a proximal portion and a distal portion, the proximal portion being connected to the handle; (iii) a ring deployment mechanism located on the distal portion of the elongate shaft, the ring deployment mechanism comprising (a) a proximal portion and a distal portion responsive respectively to opposing distal and proximal mechanical actuation forces, and (b) a plurality of fingers configured to receive an anastomotic ring, the anastomotic ring having a plurality of petals, the fingers being moveable from a first position longitudinally aligned with the elongate shaft to a second position in which the fingers actuate outwardly from a longitudinal axis of the elongate shaft to actuate at least a portion of an anastomotic ring, wherein each finger comprises a gripping slot, wherein each gripping slot of each finger is configured to receive a respective petal of the anastomotic ring, wherein each gripping slot is oriented substantially parallel with the longitudinal axis of the elongate shaft when the ring deployment mechanism is in an unactuated position, wherein the gripping slots open in a longitudinal direction substantially parallel to the axis of the elongate shaft when the ring deployment mechanism is in an unactuated position, wherein the number of gripping slots is equivalent to the number of fingers, wherein each of the plurality of fingers further comprises an inwardly directed retention tip adjacent to each gripping slot; (iv) a power source operatively configured to generate voltage; (v) a first electroactive polymer connected to the proximal portion of the ring deployment mechanism and operatively configured to produce the distal mechanical actuation force in response to the generated voltage; and (vi) a second electro active polymer connected to the distal portion of the ring deployment mechanism and operatively configured to produce the proximal mechanical actuation force in response to the generated voltage. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A surgical instrument for implanting an anastomotic ring device, comprising:
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(i) a handle; (ii) an elongate shaft comprising a proximal portion and a distal portion, the proximal portion being connected to the handle; (iii) a ring deployment mechanism configured to receive and deploy the anastomotic ring, the anastomotic ring having a plurality of petals, wherein the ring deployment mechanism comprises a plurality of distal fingers, a plurality of proximal fingers, and a central member positioned longitudinally between the plurality of distal fingers and the plurality of proximal fingers, wherein each distal finger comprises a proximal segment and a distal segment, wherein the proximal segment of each distal finger is hingedly connected at a first end to a corresponding distal segment of each distal finger and hingedly connected at a second end to the central member, wherein the distal segment of each distal finger is hingedly connected at a first end to a corresponding proximal segment of each distal finger and hingedly connected at a second end to a distal portion of the ring deployment mechanism, wherein the proximal segment of each distal finger extends radially inward from the corresponding distal segment of each distal finger toward the central member when the ring deployment mechanism is in an actuated position, wherein the distal segment of each distal finger comprises an integral gripping slot, wherein each gripping slot of each distal finger is configured to receive a respective petal of the anastomotic ring, wherein each proximal finger comprises a proximal segment and a distal segment, wherein the distal segment of each proximal finger is hingedly connected at a first end to a corresponding proximal segment of each proximal finger and hingedly connected at a second end to the central member, wherein the proximal segment of each proximal finger is hingedly connected at a first end to a corresponding distal segment of each proximal finger and hingedly connected at a second end to a proximal portion of the ring deployment mechanism, wherein the distal segment of each proximal finger extends radially inward from the corresponding proximal segment of each distal finger toward the central member when the ring deployment mechanism is in an actuated position, wherein the proximal segment of each proximal finger comprises an integral gripping slot, wherein each gripping slot of each proximal finger is configured to receive a respective petal of the anastomotic ring, wherein the central member longitudinally separates the proximal segments of the distal fingers from the distal segments of the proximal fingers; (iv) a power source adapted to generate voltage; and (v) an electroactive polymer in communication with the ring deployment mechanism and adapted to receive voltage from the power source and convert it to mechanical actuation force, wherein the electroactive polymer is configured to communicate the mechanical actuation force to the ring deployment mechanism.
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Specification