Surgical suturing needle

• US 6,129,741 A
• Filed: 09/24/1997
• Issued: 10/10/2000
• Est. Priority Date: 06/10/1995
• Status: Expired due to Fees

• Current Assignee: Forschungszentrum Karlsruhe Gmbh
• Original Assignee: Forschungszentrum Karlsruhe Gmbh
• Inventors: Trapp, Rainer, Wurster, Helmut
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): PHAM, THUY D
• Application Number:
  US08/937,360
• Time in Patent Office: 1,112 Days
• Field of Search: 606/222-227, 289/16, 223/102
• US Class Current: 606/222
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/06066 Needles, e.g. needle tip configurations making needles B21G1/00
• CPC Class Codes: A61B 2017/06019 by means of a suture-receiving lateral eyelet machined in the needle lateral opening for attaching suture to suture anchor A61B2017/0414
• CPC Class Codes: A61B 2017/06047 located at the middle of the needle
• CPC Class Codes: A61B 2017/0609 having sharp tips at both ends, e.g. shuttle needle alternately retained and released by first and second facing jaws of a suturing instrument MIS suturing instruments A61B17/0469; jaws of MIS forceps A61B2017/2926

Abstract

In a surgical suturing needle having opposite pointed tips and a mid-section provided with an eye for receiving and retaining a surgical thread and being bent corresponding to a path of movement of the needle when transferred between the jaws of a suturing instrument, the pointed needle tips have a cone angle of between 25 and 35° for non-traumatic piercing of the tissue to be sutured and, adjacent both of its opposite pointed tips, the needle has recessed surface areas to be engaged by pressure pins disposed in the jaws of the suturing instrument for firmly retaining and engaging the needle with the jaws in a predetermined position.

Claims

1. A surgical needle having opposite pointed ends and a midsection provided with a needle eye for receiving and retaining a surgical thread, said pointed ends being adapted to be engaged by opposite jaws of a surgical suturing instrument such that the needle can be transferred between the jaws of the suturing instrument, said needle also being bent corresponding to a path of movement thereof during transfer between the jaws of said suturing instrument and having a convex and a concave side with said eye extending between said convex and concave sides and, at said convex side, said needle being provided, in the area of said needle eye, with an elongated groove for receiving said surgical thread and, at said concave side thereof, with a recess around said needle eye, said needle further having, adjacent both of its opposite ends, recessed flat surface areas to be engaged by pressure pins disposed in the jaws of the suturing instrument for firmly retaining and engaging said needle with said jaws in a predetermined position, said needle ends having cone angles of between 25 and 35°

for non-traumatic piercing of tissue to be sutured.

2. A surgical suturing needle according to claim 1, wherein all edges of said needle are rounded.

3. A surgical suturing needle according to claim 1, wherein, in said recessed surface areas, said needle has opposite waist-like restrictions extending symmetrically to a needle centerline for engagement by pressure pins having fork-like ends.

4. A surgical suturing needle according to claim 1, wherein said recessed areas have a bottom formed by surface areas which are inclined toward said bottom at an angle with respect to a centerline of said needle of 10 to 30°

.