Device and method for isolating a surface of a beating heart during surgery

• US 6,478,729 B1
• Filed: 08/04/2000
• Issued: 11/12/2002
• Est. Priority Date: 07/08/1999
• Status: Expired due to Term

• Current Assignee: KDL Medical, Inc.
• Original Assignee: Chase Medical LP
• Inventors: Keyes, Charles R. Jr., Davis, Albert, Rogers, Danny Carpenter, Austin, Samuel Lynn, Baker, Clyde
• Primary Examiner(s): Shaver, Kevin
• Assistant Examiner(s): Veniaminov, Nikita R
• Application Number:
  US09/632,430
• Time in Patent Office: 830 Days
• Field of Search: 600/204, 600/207, 600/206, 600/37, 600/16, 600/17, 606/150, 606/155, 606/207, 606/148, 606/205, 606/228, 606/229, 606/213, 606/217, 606/231, 604/30, 604/28, 128/898
• US Class Current: 600/37
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/0243 for immobilizing local areas of the heart, e.g. while it beats
• CPC Class Codes: A61B 2017/306 holding by means of suction

Abstract

Disclosed is a device for isolating a cardiac surgical site. The device comprises a first finger having a clinging accessory for attaching the first finger to a heart, a second finger having a clinging accessory for attaching the second finger to the heart, a first joint disposed on the first finger so that the first finger may rotate on a surface of the heart such that said rotation stretches a surgical site, a first stopper disposed on the first finger for preventing undesired rotation of the first finger to isolate the surgical site, and a link for coupling the first finger to the second finger. Several embodiments of the fingers and clinging accessories are disclosed. A guard is provided to protect sutures from the clinging accessory. The guard is equipped with a sprayer to wash the surgical site. Also disclosed is a method of isolating a cardiac surgical site. The method comprises the steps of disposing a first finger on a heart, clinging the first finger to the heart surface, disposing a second finger on a heart, clinging the second finger to the heart surface, and then rotating the first finger for achieving selective isolation of the heart surface.

Claims

1. A device for isolating a cardiac surgical site, comprising:

a first and second finger, each finger having a clinging accessory adapted to attach to a heart, wherein at least one of the fingers may rotate on a surface of the heart such that the rotation stretches a surgical site, and at least one of the fingers has a varying diameter; and

a link coupling the first finger to the second finger, and a stabilizing member coupling the link;

wherein the stabilizing member comprises;

a socket for coupling with the link,

a flexible arm with a first end and a second end wherein the first end couples to the socket,

a tightening device coupled to the flexible arm for fixing the position of the flexible arm, and

a mounting device coupled to the second end of the flexible arm.

2. A device for isolating a cardiac surgical site, comprising:

a first and second finger, each finger having a clinging accessory adapted to attach to a heart, wherein at least one of the fingers may rotate on a surface of the heart such that the rotation stretches a surgical site, and at least one of the fingers has a varying diameter; and

a guard coupled to the first finger and the second finger;

wherein the guard has at least one element, wherein the element is longitudinally aligned with at least one finger such that the element partially covers the finger; and

the guard further comprises a support coupled to at least one element such that at least one element is supported above the respective finger.

3. A device for isolating a cardiac surgical site, comprising at least one finger comprising a hollow cylinder with a plurality of openings therethrough, the at least one finger for engaging the surface of a surgical site, wherein the at least one finger may rotate on the surface of the site such that the surface of the site may be stretched.

4. The device of claim 3 further comprising a device for creating suction at the plurality of openings to facilitate engagement of the finger to the surface of the site.

5. The device of claim 4 further comprising a second finger;

a link coupling the at least one finger to the second finger; and

a stabilizing member coupling to the link.

6. The device of claim 5 wherein the link comprises a ball disposed between a first sleeve and a second sleeve adapted to secure attachment to the stabilizing member;

a first attachment bar coupled between the first finger and the ball; and

a second attachment bar coupled between the second finger and the ball.

7. The device of claim 6 wherein the stabilizing member comprises a socket, and a flexible arm with a first end and a second end where the first end couples to the socket, wherein the second end couples to a tightening means and a mounting means.

8. The device of claim 3 wherein the respective openings are longitudinal slits radially spaced around a longitudinal axis of the hollow cylinder.

9. The device of claim 8 further comprising at least one cover partially surrounding a perimeter of the cylinder such that the plurality of openings are sealed when the finger is placed adjacent to the surface of the heart.

10. A method of isolating a cardiac surgical site, comprising the steps of:

guiding a first finger to a heart surface;

clinging the first finger to the heart surface;

guiding a second finger to the heart surface;

clinging the second finger to the heart surface; and

rotating at least one of the fingers such that the rotation stretches a surgical site, and at least one of the fingers has a varying diameter.

11. The method of claim 10 further comprising the step of rotating the second finger to further achieve the selective isolation of the portion of the heart surface.

12. The method of claim 11 further comprising the steps of locking the first finger and the second finger to prevent rotation.

13. The method of claim 10 further comprising the steps of locking the first finger to prevent rotation.

14. The method of claim 10 wherein either of said clinging steps comprises frictionally engaging the surface of the heart.

15. The method of claim 10 further comprising the step of shielding the fingers.

16. The method of claim 10 further comprising the step of spraying the heart surface with a fluid mixture.

17. A method of isolating a cardiac surgical site, comprising the steps of:

guiding a first finger to a heart surface;

clinging the first finger to the heart surface using a suction force;

guiding a second finger to the heart surface;

clinging the second finger to the heart surface using a suction force; and

rotating at least one of the fingers such that the rotation stretches a surgical site.

18. The method of claim 17 further comprising the step of rotating the second finger to further achieve the selective isolation of the portion of the heart surface.

19. The method of claim 18 further comprising the steps of locking the first finger and the second finger to prevent rotation.

20. The method of claim 17 further comprising the steps of locking the first finger to prevent rotation.

21. The method of claim 17 further comprising the step of spraying the heart surface with a fluid mixture.