Vein dissector, cauterizing and ligating apparatus for endoscopic harvesting of blood vessels

• US 7,510,562 B2
• Filed: 07/08/2003
• Issued: 03/31/2009
• Est. Priority Date: 07/08/2003
• Status: Active Grant

• Current Assignee: Olympus Corporation, Terumo Corporation
• Original Assignee: Olympus Corporation, Terumo Corporation
• Inventors: Lindsay, Erin Jessica
• Primary Examiner(s): Manahan; Todd E
• Assistant Examiner(s): Lang; Amy T
• Application Number:
  US10/614,183
• Publication Number:
  US 20050010242A1
• Time in Patent Office: 2,093 Days
• Field of Search: 606/110, 606157-159, 606/169, 606/170, 606/206, 606/99, 606/205, 600104-106, 600/159, 600/235
• US Class Current: 606/159
• CPC Class Codes: A61B 17/00008 Vein tendon strippers tube strippers A61M1/83
• CPC Class Codes: A61B 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping channel for multiple instruments A61B2017/3445; instrument channel A61B2017/22072; replaceable heads A61B2017/2931; suction A61M1/00
• CPC Class Codes: A61B 2017/00969 used for transplantation
• CPC Class Codes: A61B 2017/320093 additional movable means performing cutting operation
• CPC Class Codes: A61B 2017/320095 with sealing or cauterizing means

Abstract

An endoscopic apparatus for harvesting a desired blood vessel including an endoscopic barrel having at least two lumens, one of the lumens dimensioned for receiving an endoscope, a handle disposed at a proximal end of the endoscopic barrel, a cone portion disposed over a distal end of the endoscopic barrel, and at least one manipulator fork extendable from the cone portion for dissecting the desired blood vessel from connective tissue.

Claims

1. An endoscopic apparatus for harvesting a desired blood vessel comprising:

an endoscopic barrel including at least two lumens, one of said lumens dimensioned for receiving an endoscope;

a handle disposed at a proximal end of the endoscopic barrel;

a cone portion fixedly secured to and integral with a distal end of said endoscopic barrel, said cone portion having an interior surface facing the distal end of said endoscopic barrel and a conical exterior surface facing outwardly from the apparatus, said conical exterior surface being defined by a base ring having a circular circumference and a plurality of side portions tapering toward a vertex and forming a pointed distal end of said cone portion; and

at least one manipulator fork arm having a manipulator fork disposed on the distal end thereof, said manipulator fork arm being extendable through an opening in said integral cone portion for dissecting the desired blood vessel,

wherein said cone portion includes at least one fork recess in the conical exterior surface for receiving and maintaining said at least one manipulator fork against the exterior surface of said cone portion when said at least one manipulator fork is fully retracted so as to preserve a smooth profile of the exterior surface of said cone portion between the circular base and the pointed distal end, said at least one fork recess not allowing said at least one manipulator fork to pass through the opening of said cone portion when in a fully retracted position.

2. The endoscopic apparatus of claim 1, wherein said endoscopic barrel includes at least three lumens and said apparatus further comprises a cutting device extendable from said cone portion for cauterizing and ligating the desired blood vessel.

3. The endoscopic apparatus of claim 2, wherein said cone portion further includes a cutting device recess in the distal exterior surface for receiving said cutting device when in a retracted position such that a contoured profile of said portion is maintained.

4. The endoscopic apparatus of claim 1, wherein said at least one manipulator fork includes a control assembly permitting rotational and translational movement of said at least one manipulator fork.

5. The endoscopic apparatus of claim 4, wherein said control assembly comprises a rotatable control mechanism slidable within a predefined track on said handle.

6. The endoscopic apparatus of claim 4, wherein said control assembly further permits swivelling of said distal fork relative to said fork arm.

7. The endoscopic apparatus of claim 6, wherein said at least one manipulator fork further comprises a fork swivel control tube disposed over said fork arm.

8. The endoscopic apparatus of claim 7, wherein said control assembly further includes a swivel control ring disposed on said handle.

9. The endoscopic apparatus of claim 1, wherein said endoscopic barrel includes at least three lumens and at least two manipulator forks.

10. The endoscopic apparatus of claim 1, wherein a line drawn from said vertex to a plane of said circular base ring is perpendicular to the plane of said circular base ring.

11. An endoscopic apparatus for harvesting a desired blood vessel comprising:

an endoscopic barrel including at least two lumens, one of said lumens dimensioned for receiving an endoscope;

a handle disposed at a proximal end of the endoscopic barrel;

a cone portion integral with said endoscopic barrel, said cone portion having a conical exterior surface facing outwardly from the apparatus, said conical exterior surface being defined by a circular base ring and a plurality of side portions tapering toward a vertex forming a pointed distal end of said cone portion; and

at least one manipulator fork arm extendable through an opening in said cone portion said at least one fork arm having a manipulator fork disposed on a distal end thereof, said manipulator fork being maintained against an exterior surface of said cone portion when in a fully retracted position so as to preserve a smooth profile of the exterior surface of said cone portion between the circular base ring and the pointed distal end, and disposed exterior to said cone portion when dissecting the desired blood vessel;

wherein said cone portion is fixedly secured to a distal end of the endoscopic barrel during harvesting of a desired blood vessel.

12. The endoscopic apparatus of claim 11, wherein said endoscopic barrel includes at least three lumens and said apparatus further comprises a cuffing device extendable through said cone portion for cauterizing and ligating the desired blood vessel.

13. The endoscopic apparatus of claim 11, wherein said endoscopic barrel includes at least three lumens and at least two manipulator forks.

14. The endoscopic apparatus of claim 11, wherein a line drawn from said vertex to a plane of said circular base ring is perpendicular to the plane of said circular base ring.