Instrument for establishing vascular anastomoses

• US 4,350,160 A
• Filed: 04/02/1980
• Issued: 09/21/1982
• Est. Priority Date: 11/14/1979
• Status: Expired due to Term

• Current Assignee: Boris A. Smirnov, Evgeny V. Kolesov, Iosif L. Lipovsky, Vladimir M. Fedotov
• Original Assignee: Boris A. Smirnov, Evgeny V. Kolesov, Iosif L. Lipovsky, Vladimir M. Fedotov
• Inventors: Smirnov, Boris A., Fedotov, Vladimir M., Lipovsky, Iosif L., Kolesov, Evgeny V.
• Primary Examiner(s): Howell, Kyle L.
• Assistant Examiner(s): Shedd, C. W.
• Application Number:
  US06/136,736
• Time in Patent Office: 902 Days
• Field of Search: 128/325, 128/334 R, 128/335, 128/334 C, 128/346, 227/19, 227/DIG. 1, 227/156
• US Class Current: 227/179.1
• CPC Class Codes: A61B 17/1152 applying the staples on the outside of the lumen

Abstract

The instrument has a separable body composed of two oblong interlinked members, each of them carrying at one of its vacant ends a detachable split bush adapted for the element being sutured to pass through the interior thereof and arranged across the longitudinal axis of the respective instrument body member. The bushes have flanges on the ends facing each other, each of the flanges having an open annular slot in the surfaces facing each other, and an opening made in the lateral face of the flange, the opening being communicated with the slot and with the tube that freely runs throughout the overall length of the instrument body and extends from it outwards so as to be connected to the vacuum device. The slots and openings in the bushes establish, along with the tubes, a system of air evacuation from the suturing zone, which is discarded along with the bush after the suturing procedure. One of the bushes has passages for the staples, while the other bush, a die for the staples to bend. A staple feeding mechanism is also provided.

Claims

1. A device for use with an instrument for establishing vascular anastomoses, said device comprising a first and second split bush, and an elongate tube connected to each of said split bushes so that the split bush and its associated tube form a detachably connectable unit;

said first and said second split bushes cooperating with each other to form a suturing zone, each of said split bushes being adapted to receive a vessel to be anastomosed through an interior space thereof and having a flange with a surface facing a surface of a flange of the other bush, one of said split bushes having a passage provided therein for passage of suturing staples, the other of said split bushes having a die for bending the suturing staples to thereby unite vessels being sutured, each of said flange facing surfaces having an annular slot formed therein, lateral faces of the flanges having openings formed therein in communication with said annular slots;

a first of said elongate tubes having one end connected to the opening in the flange of the first split bush; and

a second of said elongate tubes having one end connected to the opening in the flange of the second split bush, other ends of said first and said second tubes being connectable to a source of negative pressure, the negative pressure suction attracting and holding ends of the vessels on said flange facing surfaces;

said instrument having first and second detachably joined oblong body members, each of said detachably connectable units being connectable to a respective one of said oblong body members, each of said oblong body members having a first end portion for receiving and for mounting one of said split bushes so that said split bushes form the suturing zone when the oblong body members are joined together, each of said oblong body members having a slot formed therein for receiving a respective one of said elongate tubes so that the other end of the elongate tube extends outward from a second end portion of said oblong body member.

2. A device according to claim 1, wherein each flange of each of said split bushes has a socket formed therein, each of said oblong body members having a locating rod engageable with a respective one of said sockets thereby ensuring accurate positioning of the split bushes with respect to the body members.