Laparascopic suturing device and suture needles

• US 5,964,773 A
• Filed: 06/26/1997
• Issued: 10/12/1999
• Est. Priority Date: 02/15/1995
• Status: Expired due to Term

• Current Assignee: Automated Medical Products Corporation
• Original Assignee: Automated Medical Products Corporation
• Inventors: Greenstein, Robert J.
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): PHAM, THUY D
• Application Number:
  US08/882,812
• Time in Patent Office: 838 Days
• Field of Search: 606/222-227, 606/148, 606/144, 606/145, 606/147, 606/139, 112/169, 112/80.03, 112/222, 289/16, 223/102-104, 163/5
• US Class Current: 606/148
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/062 Needle manipulators
• CPC Class Codes: A61B 2017/00637 for sealing trocar wounds through abdominal wall
• CPC Class Codes: A61B 2017/00663 the implement being a suture
• CPC Class Codes: A61B 2017/047 having at least one proximally pointing needle located at the distal end of the instrument, e.g. for suturing trocar puncture wounds starting from inside the body J-shaped suture needles A61B2017/0608
• CPC Class Codes: A61B 2017/0472 Multiple-needled, e.g. double-needled, instruments
• CPC Class Codes: A61B 2017/2943 Toothed members, e.g. rack and pinion

Abstract

A surgical suturing tool comprising a suture needle holder and suture needle is disclosed. The needle includes a groove in its sidewall which leads to a blind hole to receive one end of a suture which is secured therein by swedging.

Claims

1. A surgical suturing tool, comprising:

a) a suture needle comprising an elongated essentially straight shaft which traverses an essentially linear path of travel and having a first end tapered to a point, a second end, and a medial portion between the first end and second end, said medial portion having an axially aligned groove leading to a blind hole into which a surgical suture can be fixedly secured, said groove oriented to lead the surgical suture out of a side surface of the suture needle at an angle downward toward the proximal end of the needle opposite the point; and

b) a suture needle holder comprising;

an elongated tube having a proximal end and a distal end and having an outer wall extending there between enclosing an internal cavity;

the distal end having a rounded surface with an external groove of sufficient depth to retain a suture therein;

a pair of wings adjacent the distal end, each wing being pivotable from within the tube at a first end and having a second end which is radially extensible, the second end of said wing having a blind hole for removably receiving said suture needle in said blind hole, said needle being aligned substantially parallel with said elongated tube;

a control element mounted on the proximal end of the tube, operatively connected to said pair of wings for pivoting purposes; and

the tube further including a flushing port mounted near the proximal end, said flushing port being in fluid communication with the distal end.

2. The surgical suturing tool of claim 1 wherein said wings are movably stored in a pair of mating recesses in the tube by said control element to simultaneously rotate the wings, the wings being rotatable inwardly into a closed position which does not extend beyond the outer wall of the tube and to an open position extending radially outwardly from the tube.

3. The surgical suturing tool of claim 2 wherein said control element is a rotatable knob centrally located at the proximal end of said tube.

4. The surgical suturing tool of claim 3 wherein said distal end comprises an end cap, said end cap being rounded and grooved for receiving said suture.

5. The surgical suturing tool of claim 4 wherein said grooved end cap lies adjacent the wings.

6. The surgical suturing tool of claim 2 where said suture needle holder further includes a handle mounted on the proximal end of the tube, said handle extending radially outward of the tube.

7. The surgical suturing tool of claim 1 wherein each of said wings carries a needle-suture combination wherein said suture is fixedly secured within said needle blind hole for fixedly securing said suture.

9. A surgical suturing tool as in claim 1, wherein said needle is straight and said groove is oriented to provide an angle of exit ranging between 1 and 20 degrees.

8. A method for surgically suturing a wound, comprising the steps of:

fastening two swaged suture needles to blind holes in wings of a suture needle holder such that said needles will follow an essentially linear path of travel;

attaching a suture to a blind hole along a side of each needle, said blind hole having a groove leading thereto, said groove oriented to lead the surgical suture out of a side surface of each suture needle at an angle downward toward a proximal end of each needle opposite the point of each needle;

placing the suture within a suture retaining groove;

tensioning the suture;

inserting the suture needle holder into a wound to be sutured;

extending the suture needle away from the suture needle holder;

withdrawing the suture needle holder outwardly such that the needle penetrates the tissue to be sutured by the suture needle;

disengaging the suture needle from the suture needle holder;

pulling the suture needle and suture through the tissue to be sutured substantially parallel to said needle holder;

removing the suture needle holder from the patient, and suturing the patient.

10. A method as in claim 8, wherein each said needle is straight and said groove is oriented to provide an angle of exit ranging between 1 and 20 degrees.