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US5586986: Instrument for closing trocar puncture wounds

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Filing Information

Inventor(s) Hinchliffe; Peter W. J. ·
Assignee(s) United States Surgical Corporation ·
Primary Examiner Gary Jackson ·
Assistant Examiner Jeffrey A. Schmidt ·
Application Number US8393541
Filing date 02/23/1995
Issue date 12/24/1996
Predicted expiration date 07/14/2013
U.S. Classifications 606/147  · 606/144  ·
International Classifications A61B 1700  ·
Kind CodeA
International Classifications 606144-148;139;151;222-227 ·
Related U.S. Application DataThis is a continuation of copending application Ser. No. 08/091,793 filed Jul. 14, 1993.
18 Claims, No Drawings


Abstract

A surgical instrument for applying sutures including an elongated housing having a proximal end and a distal end, means associated with the distal end of the elongated housing for carrying at least one needle, the needle carrier means being movable between a retracted position and an extended position, at least one needle positioned on the needle carrier means, and means associated with the needle carrier means for moving the needle carrier means to the extended position to deploy the at least one needle such that upon movement of the needle carrier means by the moving means, the needle carrier moves from the retracted position to the extended position whereby the at least one needle is caused to travel through a tissue engaging path in one continuous motion. Another embodiment of the surgical instrument of the present invention for applying sutures includes an elongated housing having a proximal end and a distal end and means associated with the distal end of the elongated housing, for carrying and deploying at least two needles at a predetermined distance from each other, the carrying and deploying means being rotatable out of a first plane corresponding to a retracted position and into a second plane corresponding to an extended position while maintaining the at least two needles at the predetermined distance from each other. The instrument preferably further includes at least one needle retaining means associated with the elongated housing for receiving and retaining the at least two needles. The needle retaining means may include a pair of needle receiving pockets disposed within the elongated housing. The needle receiving pockets may be filled with a compliant material or a latch mechanism.

Independent Claims | See all claims (18)

  1. 1. A surgical instrument for applying sutures, which comprises:a) a shaft;b) a needle carrier connected to a distal end portion of said shaft;c) a needle having a tapered end portion and a base portion, said base portion disposed in said needle carrier such that at least said needle base portion is spaced a fixed predetermined distance from a central longitudinal axis of said instrument; andd) an elongated housing member surrounding said shaft and being longitudinally slidable thereon to a distally extended position, wherein said needle is at least partially enclosed within said elongated housing member by said elongated housing member moving from said tapered end portion toward said base portion such that said tapered end portion is shielded from body tissue by said elongated housing member, and to a proximally extended position, wherein said needle tapered end portion is exposed to such body tissue.
  2. 8. A surgical instrument for applying sutures, which comprises:a) a shaft;b) a needle carrier connected to a distal end portion of said shaft;c) a needle having a tapered end portion and a base portion, said base portion disposed in said needle carrier such that said needle is spaced a fixed predetermined distance from said shaft, wherein said needle tapered end portion defines a suture receiving opening therein;d) a suture material having one end thereof passed through said needle and which is contained in a suture passageway formed longitudinally through said shaft; ande) an elongated housing member surrounding said shaft and being longitudinally slidable thereon between a distally extended position, wherein said needle is at least partially enclosed within said elongated housing member such that said tapered end portion is shielded from body tissue by said elongated housing member, and a proximally extended position, wherein said needle tapered end portion is exposed to such body tissue.
  3. 13. A surgical instrument for applying sutures, which comprises:a) a shaft;b) a needle carrier connected to a distal end portion of said shaft;c) a needle having a tapered end portion and a base portion, said base portion disposed in said needle carrier such that said needle is spaced a fixed predetermined distance from a central longitudinal axis of said instrument;d) an elongated housing member surrounding said shaft and being longitudinally slidable thereon between a distally extended position, wherein said needle is at least partially enclosed within said elongated housing member such that said tapered end portion is shielded from body tissue by said elongated housing member, and a proximally extended position, wherein said needle tapered end portion is exposed to such body tissue; ande) a needle retaining structure attached to said elongated housing, wherein when said elongated housing is moved to said distally extended position and said tapered end portion axially aligned with said needle retaining structure, said tapered portion of said needle is retained in said retaining structure.

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Other Publications

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