Compact suture punch with malleable needle
First Claim
1. Suturing instrumentation adapted for use with a malleable needle having a sharpened distal tip and proximal end attachable to a length of suture material, the instrumentation comprising:
- an elongated, cannulated tube having a distal end terminating in a nonlinear portion; and
a trocar configured for introduction into the elongated, cannulated tube, andthe cannulated tube having a linear slot in a side wall proximate to the distal end of the elongated cannulated tube to receive a linear malleable needle,the trocar including a distal end operative to push the malleable needle through the nonlinear portion,such that when the distal end of the cannulated tube is positioned proximate to a tissue to be sutured the needle is pushed by the distal end of the trocar through the nonlinear portion, the needle is deformed, causing the needle and suture material to enter into, and exit from, the tissue such that at least a portion of a distal tip of the needle protrudes from the tissue.
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Accused Products
Abstract
A suture punch system is capable of directly passing braided suture through tissue in a simple, one-step process. The system includes three principle components: a malleable needle with braided suture attached, a handheld instrument for grasping tissue and controlling needle placement, and a trocar to supply the force required for needle placement. Needle deformation begins at the tip of the instrument, which preferably includes a curved segment. As the distal tip of the needle pierces the tissue, it continues its radial path through the tissue. When the proximal end of the needle exits from the instrument, the needle is entirely radial in shape and traverses an essentially radial path through the tissue. Non-radial linear or non-linear segments may alternatively be used. In one embodiment, the tissue to be sutured is constrained by pressure applied through closure between an upper, moveable jaw the distal portion of the instrument which acts as a fixed jaw. The upper, movable jaw contains a shaped passageway which allows the curved needle to pass therethrough during use. Once the needle has passed entirely through the tissue it is ready for retrieval using the jaws of the punch or another instrument. Different needle designs and separate instruments are also disclosed.
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Citations
35 Claims
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1. Suturing instrumentation adapted for use with a malleable needle having a sharpened distal tip and proximal end attachable to a length of suture material, the instrumentation comprising:
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an elongated, cannulated tube having a distal end terminating in a nonlinear portion; and a trocar configured for introduction into the elongated, cannulated tube, and the cannulated tube having a linear slot in a side wall proximate to the distal end of the elongated cannulated tube to receive a linear malleable needle, the trocar including a distal end operative to push the malleable needle through the nonlinear portion, such that when the distal end of the cannulated tube is positioned proximate to a tissue to be sutured the needle is pushed by the distal end of the trocar through the nonlinear portion, the needle is deformed, causing the needle and suture material to enter into, and exit from, the tissue such that at least a portion of a distal tip of the needle protrudes from the tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Suturing instrumentation adapted for use with a malleable needle having a sharpened distal tip and a proximal end attachable to a length of suture material, the instrumentation comprising:
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an elongated, cannulated tube having a distal end terminating in a nonlinear portion; a trocar configured for introduction into the elongated, cannulated tube, the cannulated tube having a linear slot in a side wall proximate to the distal end of the elongated cannulated tube to receive a linear malleable needle, the trocar including a distal end operative to push the malleable needle through the nonlinear portion, such that when the distal end of the cannulated tube is positioned proximate to a tissue to be sutured the needle is pushed by the distal end of the trocar through the nonlinear portion, the needle is deformed, causing the needle and suture material to enter into, and exit from, the tissue such that at least a portion of a distal tip of the needle protrudes from the tissue; and a jaw pivotally coupled to the distal end of the cannulated tube for holding tissue as the needle enters into the tissue and for retaining the needle upon exiting the tissue. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. Suturing instrumentation adapted for use with a malleable needle having a sharpened distal tip and a proximal end attachable to a length of suture material, the instrumentation comprising:
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a hand-held tool having proximal and distal ends; an elongated, cannulated tube extending the length of the tool and terminating distally in a nonlinear portion; the cannulated tube having a linear slot in a side wall proximate to the distal end of the elongated cannulated tube to receive a linear malleable needle, a trocar having an elastically deformable distal end disposed within the elongated, cannulated tube and an exposed proximal end, such that when the distal end of the cannulated tube is positioned proximate to a tissue to be sutured and the exposed proximal end of the trocar is pushed, the needle inelastically deforms as it passes through the nonlinear portion, causing the needle and suture material to enter into, and exit from, the tissue such that at least a portion of a distal tip of the needle protrudes from the tissue; a jaw pivotally coupled to the distal end of the cannulated tube for holding tissue as the needle enters into the tissue and for retaining the needle upon exiting the tissue; and a manually operated control at the proximal end of the hand-held tool enabling a user to open and close the jaw. - View Dependent Claims (20, 21, 22, 23, 24)
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25. Suturing instrumentation, comprising:
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a linear malleable needle having a sharpened distal tip and proximal end attachable to a length of suture material; an elongated, cannulated tube having a distal end terminating in a nonlinear portion; the cannulated tube having a liner slot in a side wall proximate to the distal end of the elongated cannulated tube to receive a linear malleable needle; and a trocar configured for introduction into the elongated, cannulated tube, the trocar including a distal end operative to push the malleable needle through the nonlinear portion, such that when the distal end of the cannulated tube is positioned proximate to a tissue to be sutured the needle is pushed by the distal end of the trocar through the nonlinear portion, the needle is deformed by the nonlinear portion, causing the needle and suture material to enter into, and exit from, the tissue such that at least a portion of a distal tip of the needle protrudes from the tissue. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification