Device for suturing intracardiac defects
First Claim
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1. A suturing device comprising:
- a housing having a first foot actuation handle and a first needle actuation handle, the housing having a proximal end and a distal end;
a flexible shaft extending from the distal end of the housing, the flexible shaft having a proximal end and a distal end;
a first foot housing extending from the distal end of the shaft, the first foot housing carrying a pivotable first foot, the first foot having a proximal side and a distal side in a deployed configuration, the first foot being operatively connected to a first foot actuation wire and a second foot actuation wire, the first and second foot actuation wires being connected to the first foot actuation handle and being routed over a bearing disposed proximal to and radially offset from a pivot point of the first foot, the first foot actuation wire and the second foot actuation wire being connected to the first foot on opposite sides of the pivot point and extending from the foot toward the bearing at angular orientations transverse to one another;
at least one needle extending from the first needle actuation handle and through the shaft;
a length of suture having two ends, the length of suture positioned on the device; and
a distal sheath extending from the first foot housing, the distal sheath defining a guidewire lumen.
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Abstract
A suturing device includes a length of suture that will be delivered to the site of a PFO and placed through the tissue adjacent the opening to close the PFO. The suture is advanced through the tissue surrounding the opening by a pair of needles that penetrate the tissue adjacent to the opening. The suture can be secured to the tissue through use of a knot, a suture clip or other clip like device to retain the suture in a position such that the PFO is closed.
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Citations
15 Claims
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1. A suturing device comprising:
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a housing having a first foot actuation handle and a first needle actuation handle, the housing having a proximal end and a distal end; a flexible shaft extending from the distal end of the housing, the flexible shaft having a proximal end and a distal end; a first foot housing extending from the distal end of the shaft, the first foot housing carrying a pivotable first foot, the first foot having a proximal side and a distal side in a deployed configuration, the first foot being operatively connected to a first foot actuation wire and a second foot actuation wire, the first and second foot actuation wires being connected to the first foot actuation handle and being routed over a bearing disposed proximal to and radially offset from a pivot point of the first foot, the first foot actuation wire and the second foot actuation wire being connected to the first foot on opposite sides of the pivot point and extending from the foot toward the bearing at angular orientations transverse to one another; at least one needle extending from the first needle actuation handle and through the shaft; a length of suture having two ends, the length of suture positioned on the device; and a distal sheath extending from the first foot housing, the distal sheath defining a guidewire lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A suturing device comprising:
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an elongate housing having a foot actuation handle and a needle actuation handle; a foot housing including a wire bearing; an elongate shaft extending between the elongate housing and the foot housing; a foot mounted to the foot housing, the foot being movable relative to the foot housing between a first position in which the foot is substantially aligned with the shaft and a second position in which the foot extends laterally from the elongate shaft, the foot having a proximal side and a distal side in the second position, the foot actuation handle being operably coupled to the foot via a first foot actuation wire and a second foot actuation wire to move the foot between the first position and the second position, the foot actuation wire and the second foot actuation wire both being routed over the wire bearing disposed proximal to and radially offset from a pivot point of the foot, the foot actuation wire and the second foot actuation wire being connected to the foot on opposite sides of the pivot point and extending from the foot toward the bearing at angular orientations transverse to one another, the first foot actuation wire being connected to the proximal side of the foot and the second foot actuation wire being connected to the distal side of the foot in the second position, the wire bearing positioning the first foot actuation wire to transmit a force applied to the first foot actuation wire at an angle approximately perpendicular to the foot; a pair of needles extending from the needle actuation handle and through the elongate shaft; a length of suture positioned on the device; and a distal sheath extending from the foot housing, the distal sheath defining a guidewire lumen. - View Dependent Claims (13, 14, 15)
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Specification