Instrument for closing trocar puncture wounds
First Claim
1. A surgical instrument for applying sutures through body tissue, which comprises:
- (a) an elongated body having a proximal end portion and a distal end portion;
(b) at least one needle carrier member operatively mounted in said distal end portion and movable between at least a retracted position and a deployed position;
(c) a needle having a tapered end and being releasably retained in said at least one needle carrier member such that when said at least one needle carrier member is in said retracted position said tapered end is prevented from contacting tissue;
(d) a predetermined length of suture material having one end affixed to said needle; and
(e) a suture material tensioning member movably disposed within said elongated body for maintaining said suture material in tension during movement of said at least one needle carrier member from said retracted position to said deployed position.
2 Assignments
0 Petitions
Accused Products
Abstract
A novel surgical instrument for applying sutures through body tissue including an elongated body having a proximal end portion and a distal end portion, at least one needle carrier member operatively mounted in the distal end portion and movable between at least a retracted position and a deployed position, a needle releasably retained in the at least one needle carrier member, a predetermined length of suture material having one end affixed to the needle, and a suture material tensioning member disposed within the elongated body for maintaining the suture material in tension during movement of the at least one needle carrier member from the retracted position to the deployed position the suture material. The instrument may also include a retaining mechanism adapted to retain the at least one needle carrier in the partially deployed position, and a needle skewing mechanism operatively associated with an actuator member to change the alignment thereof relative to the retaining member. A deployment indicator may be provided to indicate to an operator of the instrument When the at least one needle carrier member is in the second position.
557 Citations
28 Claims
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1. A surgical instrument for applying sutures through body tissue, which comprises:
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(a) an elongated body having a proximal end portion and a distal end portion; (b) at least one needle carrier member operatively mounted in said distal end portion and movable between at least a retracted position and a deployed position; (c) a needle having a tapered end and being releasably retained in said at least one needle carrier member such that when said at least one needle carrier member is in said retracted position said tapered end is prevented from contacting tissue; (d) a predetermined length of suture material having one end affixed to said needle; and (e) a suture material tensioning member movably disposed within said elongated body for maintaining said suture material in tension during movement of said at least one needle carrier member from said retracted position to said deployed position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A surgical instrument for applying sutures through body tissue, which comprises:
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(a) an elongated body having a proximal end portion and a distal end portion; (b) at least one needle carrier member operatively mounted in said distal end portion and movable between at least a retracted position and a deployed position; (c) a needle releasably retained in said at least one needle carrier; (d) a predetermined length of suture material having one end affixed to said needle; (e) a suture material tensioning member disposed within said elongated body for maintaining said suture material in tension during movement of said at least one needle carrier member from said retracted position to said deployed position; and (f) an actuator member operatively associated with said at least one needle carrier member, said actuator member being movable between at least a first position and a second position to move said at least one needle carrier from said retracted position to said deployed position and a needle skewing mechanism operatively associated with said actuator member such that upon movement of said actuator member from said first position to said second position said needle skewing mechanism contacts a tapered portion of said needle to change the alignment thereof relative to said retaining member.
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8. A surgical instrument for applying sutures through body tissue, which comprises:
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(a) an elongated body having a proximal portion and a distal portion, (b) at least one needle carrier member operatively mounted in said distal end portion and movable between at least an initial position, a partially deployed position and a fully deployed position; (c) a needle releasably retained at a predetermined position with respect to said at least one needle carrier as said needle carrier moves from the initial position to the fully deployed position; (d) an actuator member engaging said at least one needle carrier member, said actuator member being movable between at least a first position and a second position to move said at least one needle carrier from said initial position to said fully deployed position; (e) a predetermined length of suture material having one end thereof affixed to said needle; and (f) a needle carrier retaining mechanism operatively associated with said at least one needle carrier member, said needle carrier retaining mechanism being configured and dimensioned to retain said at least one needle carrier in said partially deployed position. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A surgical instrument for applying sutures through body tissue, which comprises:
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(a) an elongated body having a proximal portion and a distal portion; (b) at least one needle carrier member operatively associated with said distal portion and movable between at least an initial position and a deployed position; (c) an actuator member operatively associated with said at least one needle carrier member, said actuator member being movable between at least a first position and a second position to move said at least one needle carrier from said initial position to said deployed position; (d) a needle releasably retained in said at least one needle carrier member; (e) a needle retaining member disposed in said elongated body and adapted to retain said needle therein when said at least one needle carrier member is in said deployed position; and (f) a needle skewing mechanism operatively associated with said actuator member for changing the alignment of the needle relative to said retaining member. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A surgical instrument for applying sutures through body tissue, which comprises:
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(a) an elongated body having a proximal portion and a distal portion; (b) at least one needle carrier member operatively associated with said distal portion of said body portion, said at least one needle carrier member movable between at least a first position and a second position; (c) a needle member having a tapered end and being releasably retained in said at least one needle carrier member such that when said at least one needle carrier member is in said first position said tapered end is prevented from contacting tissue; and (d) an illuminating indicator configured and dimensioned to provide an indication to an operator of said instrument when said at least one needle carrier member is in said second position. - View Dependent Claims (27, 28)
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Specification