Retractable suture needle with self-contained driver

Surgery – Instruments – Suture – ligature – elastic band or clip applier

Patent

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Details

606144, 606145, A61B 1704

Patent

active

055711197

ABSTRACT:
Methods and apparatus for suturing in physically confined and visually restricted areas are disclosed. Suturing instruments are described that serve to deliver suture material through biological tissue by extending and retracting the distal portion of the instrument through the tissue. Suture needles are described that include structure for piercing through biological tissue to a position on the opposite side of the anastomotic site structure for delivering suture material through the tissue. In this way, a stitch is formed as the suture needle retracts. In one embodiment, the suture needle includes a notch located on the needle surface which can receive a loop of suture material. Upon passing the suture needle through the tissue, the suture material can be seated within the notch so that the suture material is drawn through the tissue as the needle is retracted. The needle can include a coupling mechanism that mounts the needle for pivoting action in response to a linear actuating motion of a rod. The suture needle can further have an interior passage extending from the end of the needle to the means for receiving suture. The interior passage can be the dimensioned for receiving suture and an optional guide wire, where the guide wire guides the suture through the passage and into the means for receiving suture.

REFERENCES:
patent: 1822330 (1931-09-01), Ainslie
patent: 2008251 (1935-07-01), Hillebrand
patent: 2336689 (1943-12-01), Karle
patent: 2414746 (1947-01-01), Karle
patent: 2457379 (1948-12-01), Kallenbach
patent: 3638654 (1972-02-01), Akuba
patent: 4221212 (1980-09-01), Miller
patent: 4373530 (1983-02-01), Kilejian
patent: 4440171 (1984-04-01), Nomoto et al.
patent: 4527564 (1985-07-01), Eguchi et al.
patent: 5222977 (1993-06-01), Esser
patent: 5224948 (1993-06-01), Abe et al.
"Marlow Introduces the Clarke Needle Forcep: A Suture Grasper And A Needle Driver In A Single Instrument," Marlow Surgical Technologies, Inc. (1993), Advertisement.

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