Intracardiac suture device

• US 7,063,710 B2
• Filed: 04/15/2003
• Issued: 06/20/2006
• Est. Priority Date: 04/15/2002
• Status: Expired due to Fees

• Current Assignee: Nipro Corporation
• Original Assignee: Nipro Corporation
• Inventors: Kataoka, Hideaki, Miyagawa, Katsuya, Suematsu, Yoshihiro, Takamoto, Shinichi
• Primary Examiner(s): Woo, Julian W.
• Application Number:
  US10/413,524
• Publication Number:
  US 20030195529A1
• Time in Patent Office: 1,162 Days
• Field of Search: 606/139, 606/144, 606/145, 606/148, 600/104
• US Class Current: 606/144
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/0482 Needle or suture guides guides for drills, pins or wire A61B17/17; for puncturing needles A61B17/3403
• CPC Class Codes: A61B 2017/00243 cardiac

Abstract

An intracardiac suture device comprises a first shaft assembly 1 including a first shaft 11 and a first suture needle-holding device 4 provided at a distal end of the first shaft 11; a second shaft assembly 2 comprising a second shaft 21; a third shaft assembly 3 comprising a third shaft 31 and a handling portion 33; and a puncture assembly 5 provided at a proximal end thereof with a second suture needle-holding device 51. The second shaft 21 is protrusible by sliding-movement from the distal end of the first shaft 11 toward the first suture needle-holding device 4, and a suture needle 6 is transferable between the first suture needle-holding device 4 and the second suture needle-holding device 51 when the third shaft 31 is slid to the distal end of the second shaft 21 after sliding the second shaft 21 to a position where a suture site is held between the second shaft 21 and the first suture needle-holding device 4.

Claims

1. Art intracardiac suture device, comprising:

a first shaft assembly comprising a first shaft having a lumen passing therethrough from a proximal end to a distal end thereof, a first suture needle-holding means coaxially provided at and spaced from the distal end of the first shaft, and a first connector provided on the proximal end of the first shaft;

a second shaft assembly comprising a second shaft slidably arranged in the first shaft assembly, and a second connector provided on the proximal end of the second shaft, said second shaft having first and second lumens passing therethrough from a proximal end thereof to a distal end thereof, said second lumen being closed at a distal end thereof with a transparent covering member;

a third shaft assembly comprising a hollow third shaft slidably arranged in the first lumen of said second shaft assembly, and a handling portion provided at a proximal end of the third shaft; and

a puncture assembly comprising a hollow operating rod provided at a distal end thereof with a second suture needle-holding means movably arranged in the distal end of the third shaft, said hollow operating rod being connected to the proximal end of the second suture needle-holding means and movably arranged in the third shaft assembly;

and a visual monitoring means arranged in the distal end of the second lumen at a position close to the distal end of said cover member;

wherein said second shaft is protrusible by sliding-movement from the distal end of the first shaft toward the first suture needle-holding means, and wherein a suture needle is transferable between the first suture needle-holding means and the second suture needle-holding means when the third shaft is slid to the distal end of the second shaft after sliding the second shaft to a position where a suture site is held between said covering member and the first suture needle-holding means.

2. The intracardiac suture device according to claim 1, wherein the second shaft assembly is rotatable in the first shaft assembly.

3. The intracardiac suture device according to claim 2, wherein said visual monitoring means is an endoscope or ultrasonic transducer.

4. The intracardiac suture device according to claim 1, wherein said visual monitoring means is an endoscope or ultrasonic transducer.

5. The intracardiac suture device according to claim 1, wherein the second connector is provided with a pair at rotationally symmetrical protrusion extending front the peripheral portion toward the distal end thereof, and wherein said first connector is provided on its proximal end side with a pair of recesses for receiving said protrusions, and wherein said second shaft is movable between a position where the protrusions are respectively received in said recesses and a position where the protrusions are disengaged from said recesses.

6. The intracardiac suture device according to claim 1, wherein either or both connectors of the first and second shaft assemblies are provided with a side tube for infusion of heparin, a saline solution or the like.