Automatic purse string suture device
First Claim
1. An apparatus for automatically applying a purse string suture in the wall of a vessel lumen, comprising:
- an elongated structure having a distal edge comprising a plurality of spaced-apart protrusions;
a needle passage defined within said distal edge;
means for advancing an needle through said needle passage; and
means for releasably engaging the wall of a vessel lumen against said distal edge of said elongated structure.
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Accused Products
Abstract
An automatic purse string suture device is disclosed that enables a surgeon to install a purse string suture in tissue structures, particularly for sealing the tissue about a cannula. The device is particularly suited for minimally invasive cardiothoracic procedures and is comprised of an applicator having an elongated structure with protrusions extending from the distal edge thereof. Also provided are means for advancing a needle through a passage to pass a suture through tissue that has been conformed to the distal edge of the device. Various means for conforming the tissue to the distal edge are disclosed as are methods for using the device to facilitate cardiothoracic surgery.
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Citations
47 Claims
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1. An apparatus for automatically applying a purse string suture in the wall of a vessel lumen, comprising:
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an elongated structure having a distal edge comprising a plurality of spaced-apart protrusions; a needle passage defined within said distal edge; means for advancing an needle through said needle passage; and means for releasably engaging the wall of a vessel lumen against said distal edge of said elongated structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20, 21)
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- 17. The apparatus of 12 further comprising a rod slidably extending through said tube, said rod having proximal and distal ends, wherein said actuator is a rotatable knob, said distal end of said rod terminates in a pointed tip, and said proximal end of said rod is in threaded engagement with said rotatable knob, whereby rotation of said knob causes said rod to move axially through said tube.
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22. An automatic suturing device comprising:
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an outer tubular member having a distal edge forming a substantially sinusoidal configuration having peak sections and valley sections, said peak sections being distal relative to said valley sections and having an annular needle passage defined therein; a plurality of disks rotationally mounted circumferentially within said outer tubular member wherein each of said disks is diametrically aligned with a peak section; an inner tubular member coaxially positioned within said outer tubular member and rotationally engagable with said plurality of disks such that an annular needle operatively positioned within said annular needle passage is advanced through said passage by said rotational engagement; and means for releaseably engaging the wall of a vessel lumen against said distal edge of said outer tubular member whereby said tissue conforms to said substantially sinusoidal configuration. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of automatically applying a purse string suture in the wall of a tissue structure comprising the steps of:
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shaping the tissue wall into a substantially sinusoidal configuration having peak sections and valley sections; and passing an annular needle having a suture attached thereto in an annular path through said peak sections. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. A method of automatically providing a purse string suture at a target site within the wall of a tissue structure comprising the steps of:
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providing an annular structure having a distal edge comprising a substantially sinusoidal configuration; engaging said distal edge against the target site; conforming the tissue wall at the target site to said substantially sinusoidal configuration; and passing an annular needle through the tissue wall. - View Dependent Claims (45, 46)
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47. A method to create an annular suture in the wall of a target hollow vessel comprising:
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contacting the target vessel with the distal end of a suture applier; conforming the vessel wall to the distal end of the suture applier; operating the suture applier to pass a needle attached to a suture in an annular path through the portions of the vessel that the that are conformed to the distal end of the suture applier.
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Specification