Flexible endoscopic stitching devices
First Claim
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1. An endoscopic stitching device, comprising:
- a tool assembly including;
a pair of juxtaposed jaws pivotally associated with one another, each jaw defining a needle receiving recess formed in a tissue contacting surface thereof;
a drive assembly; and
a pair of needle engaging blades slidably supported, one each, in a respective jaw, each blade having an advanced position wherein a distal end of the blade engages a suture needle when the suture needle is in the respective jaw to thereby secure the suture needle to the jaw, and a retracted position wherein the distal end of the blade is out of engagement with the suture needle to thereby permit the suture needle to be removed from the jaw, wherein a proximal end of each blade is rotatably connected to the drive assembly; and
a center rod slidably and rotatably disposed through the drive assembly, a distal end of the center rod being operatively engaged with the pair of jaws,wherein an axial translation of the center rod results in one of an opening and a closing of the pair of jaws; and
wherein a rotation of the center rod causes the drive assembly to rotate resulting in opposed axial translation of the pair of blades.
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Abstract
An endoscopic stitching device includes a tool assembly having a pair of juxtaposed jaws pivotally associated with one another, each jaw defining a needle receiving recess formed in a tissue contacting surface thereof; a drive assembly including a pair of concentric, individually rotatably and translatably supported barrels, each barrel defining a central lumen therethrough; and a pair of axially translatable needle engaging blades slidably supported, one each, in a respective jaw. The stitching device further includes a center rod slidably and rotatably disposed through the lumen of the barrels, a distal end of the center rod being operatively engaged with the pair of jaws.
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Citations
20 Claims
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1. An endoscopic stitching device, comprising:
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a tool assembly including; a pair of juxtaposed jaws pivotally associated with one another, each jaw defining a needle receiving recess formed in a tissue contacting surface thereof; a drive assembly; and a pair of needle engaging blades slidably supported, one each, in a respective jaw, each blade having an advanced position wherein a distal end of the blade engages a suture needle when the suture needle is in the respective jaw to thereby secure the suture needle to the jaw, and a retracted position wherein the distal end of the blade is out of engagement with the suture needle to thereby permit the suture needle to be removed from the jaw, wherein a proximal end of each blade is rotatably connected to the drive assembly; and a center rod slidably and rotatably disposed through the drive assembly, a distal end of the center rod being operatively engaged with the pair of jaws, wherein an axial translation of the center rod results in one of an opening and a closing of the pair of jaws; and wherein a rotation of the center rod causes the drive assembly to rotate resulting in opposed axial translation of the pair of blades. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A tool assembly for performing an endoscopic stitching procedure, the tool assembly being actuatable by a driving center rod that is slidably and rotatably supported in the tool assembly, the tool assembly, comprising:
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a pair of juxtaposed jaws pivotally associated with one another, each jaw defining a needle receiving recess formed in a tissue contacting surface thereof, wherein a distal end of the driving center rod is operatively engaged with the pair of jaws; a drive assembly configured such that the driving center rod extends therethrough; and a pair of needle engaging blades slidably supported, one each, in a respective jaw, each blade having an advanced position wherein a distal end of the blade engages a suture needle when the suture needle is in the respective jaw to thereby secure the suture needle to the jaw, and a retracted position wherein the distal end of the blade is out of engagement with the suture needle to thereby permit the suture needle to be removed from the jaw, wherein a proximal end of each blade is rotatably connected to the drive assembly; wherein an axial translation of the center rod results in one of an opening and a closing of the pair of jaws; and wherein a rotation of the center rod causes the drive assembly to rotate resulting in opposed axial translation of the pair of blades. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification