Surgical instrument for resection of hollow organs

• US 4,589,413 A
• Filed: 07/21/1983
• Issued: 05/20/1986
• Est. Priority Date: 07/21/1983
• Status: Expired due to Fees

• Current Assignee: Alcatel SA (Nokia Corporation)
• Original Assignee: Vsesojuzny Nauchno-Issledovalelsky Ispytatelny Institut Meditsinskoi Tekhniki
• Inventors: Malyshev, Boris N., Saljuk, Viktor A., Skobelkin, Oleg X., Korolkov, Ivan A., Ivanova, Tatyana L., Bashilov, Viktor P., Brekhov, Evgeny I., Smirnov, Boris A.
• Primary Examiner(s): Thaler, Michael H.
• Application Number:
  US06/515,979
• Time in Patent Office: 1,034 Days
• Field of Search: 128/346, 128/334 R, 128/334 C, 128/305, 128/303.1, 227/DIG. 1, 227/19
• US Class Current: 227/176.1
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/0725 with settable gap between anvil and cartridge, e.g. for different staple heights at different shots

Abstract

The disclosure is made of a surgical instrument comprising a suturing device having a supporting body and a staple body with an ejector for ejecting staples therefrom for suturing, the bodies being coupled together by means of a pivot device adjacent one end, and a retainer is provided at the other end thereof for locking a relative position of the bodies. A cutting device is provided for cutting tissues. The pivot device is coupled to one of the bodies by means of a mechanism for moving the body in the plane thereof in parallel with itself with respect to the pivot device. The retainer is of a length which is adjustable in accordance with the amount of movement of one of the bodies.

Claims

1. A surgical instrument for resection of hollow organs, comprising a suturing device for suturing with staples including a supporting body having depressions for bending said staples, a staple body having a staple magazine for accommodating said staples, and an ejector for ejecting said staples from said magazine;

a pivot device for coupling said staple body and said supporting body together for relative movement for placing an organ therebetween and for suturing it in a predetermined area, the pivot device being arranged at one end of said suturing device, a retainer for locking a relative position of the bodies arranged adjacent an opposite end of the suturing device;

a cutting device; and

means for moving said supporting body with respect to said staple body to vary the spacing between said bodies adjacent both ends of said suturing device and thereby ensure substantial parallelism of said bodies in a closed position; and

said moving means including a mechanism for moving the pivot device, said pivot device moving mechanism being coupled to said supporting body for moving the supporting body and comprising two plates arranged on opposite sides of the staple body and installed for parallel movement with respect to the longitudinal centerline of the suturing device, each plate having a pair of inclined grooves adjacent the opposite ends thereof, with a pivot pin of the pivot device being installed in one pair of inclined grooves, and the retainer comprising a fork member having pins which are received in the other pair of inclined grooves.

2. The surgical instrument according to claim 1, wherein the staple body is coupled to the pivot device by means of a screw pair in which a nut is installed on a pivot pin, with a threaded hole of the nut extending at a right angle to the pivot pin.

3. The surgical instrument according to claim 1, wherein said mechanism for moving the pivot device and which is designed for moving the supporting body and which comprises the two plates arranged on opposite sides of the staple body and installed for movement with respect to the longitudinal centerline of the suturing device, is provided with a yoke for coupling both plates together.

4. The surgical instrument according to claim 3, wherein the plates of the mechanism for moving the pivot device have a line, and marks are applied to the opposite sides of the staple body for setting-up the plate lines for a matched change in the clearance at both ends of the suturing device.

5. The surgical instrument according to claim 1, wherein the staple body which is coupled to the pivot device has a longitudinal guideway for movement of an ejector cooperating with prismatic tails of staple carriers, the cutting device being installed on the ejector for movement therewith.

6. The surgical instrument according to claim 5, wherein the ejector comprises a pair of members in the form of a drive screw and a drive nut, the drive screw being installed for rotation in the staple body and extending through the interior of the staple body.