VAD connector plug

• US 7,942,805 B2
• Filed: 12/22/2008
• Issued: 05/17/2011
• Est. Priority Date: 12/27/2007
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Heartware,Inc. (Medtronic Plc)
• Inventors: Shambaugh, Charles R. Jr.
• Primary Examiner(s): Manuel; George
• Assistant Examiner(s): Wieland; Robert N
• Application Number:
  US12/317,393
• Publication Number:
  US 20090171136A1
• Time in Patent Office: 876 Days
• Field of Search: 600/16, 604/175, 606/41, 623/1.15
• US Class Current: 600/16
• CPC Class Codes: A61M 39/00 Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use for respiratory devices, e.g. tracheal tubes A61M16/00; artificial heart valves A61F2/24
• CPC Class Codes: A61M 60/00 Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance heart stimulation A61H31/00; heart stimulators for electrotherapy A61N1/362
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices

Abstract

A plug which may be positioned in place of a Ventricular Assist Device (“VAD”) within a VAD connector mounted to the heart. The VAD connector may have at least one VAD-engaging feature and may define an opening. The plug may have a body adapted to fill the opening of the VAD connector and may engage the VAD connector. The plug may be installed in place of a VAD when the heart heals, and then removed and replaced by a VAD if the patient'"'"'s condition deteriorates.

Claims

1. A plug to be positioned, during a surgical procedure, in place of a VAD within a VAD connector mounted to the heart and having at least one VAD-engaging feature and defining an opening, the plug comprising a body comprising metallic, ceramic or polymeric material, adapted to fill the opening of the VAD connector, engage the VAD connector and remain in place within the VAD connector following the surgical procedure.

2. A plug as claimed in claim 1 wherein the plug is adapted to engage the at least one VAD-engaging feature of the connector.

3. A plug as claimed in claim 2 wherein the plug body is adapted for engagement by a clamp on the connector.

4. A plug as claimed in claim 2 wherein the plug engages the at least one VAD-engaging feature of the connector with a groove and an O-ring.

5. A plug as claimed in claim 1 wherein the material of the plug body is non-thrombogenic.

6. A plug as claimed in claim 5 wherein the non-thrombogenic material is titanium.

7. A plug as claimed in claim 1 wherein the plug body has a surface which inhibits cell growth or attachment.

8. An assembly including:

a VAD connector mounted to the heart of a patient, the VAD connector having at least one VAD-engaging feature including a clamp having first and second elements disposed on opposite sides of the opening, the clamp having an open condition in which the first and second elements are further from one another and a closed condition in which the first and second elements are closer to one another and defining an opening for communication between the interior of the heart and a VAD; and

a plug filling the opening of the VAD connector and engaged with the connector, wherein the plug has a body having a main portion and a neck with smaller diameter than the main portion, a distance between the elements of the clamp being less than the diameter of the main portion when the clamp is in the closed condition.

9. An assembly as claimed in claim 8 wherein the plug engages the at least one VAD-engaging feature of the connector.

10. A kit for the surgical treatment of heart disease, comprising:

a VAD connector adapted to be mounted to the heart of a patient, the VAD connector having at least one VAD-engaging feature adapted to engage a VAD, the VAD connector defining an opening; and

a plug having a metallic, ceramic or polymeric body, adapted to fill the opening of the connector, engage the connector and remain in place within the connector following the surgical treatment.

11. A kit as claimed in claim 10 further comprising a VAD adapted for engagement with the at least one VAD-engaging feature of the connector.

12. A kit as claimed in claim 10 wherein the plug is adapted to engage the at least one VAD-engaging feature of the connector.

13. A kit as claimed in claim 10 wherein the VAD-engaging features of the connector include a clamp having first and second elements disposed on opposite sides of the opening, the clamp having an open condition in which the first and second elements are further from one another and a closed condition in with the first and second elements are closer to one another, the plug body having a main portion and a neck with smaller diameter than the main portion, a distance between the elements of the clamp being less than the diameter of the main portion when the clamp is in the closed condition.

14. The kit as claimed in claim 10, wherein the plug body comprises titanium.

15. A method of treating heart disease, comprising:

removing a VAD from an opening of a VAD connector mounted on the heart; and

inserting a plug into the opening of the VAD connector so that the plug blocks the opening while the VAD connector remains mounted on the heart, and securing the plug to the VAD connector.

16. A method as claimed in claim 15 wherein the step of securing the plug to the VAD connector includes engaging the plug with an at least one VAD-engaging feature of the VAD connector.

17. A method as claimed in claim 15 further comprising the step of removing the plug from the VAD connector and engaging a VAD with the VAD connector.

18. A method of performing a surgical procedure for pre-emptively treating heart disease of the type causing decreased blood pumping capacity, comprising:

attaching a VAD connector to the outer surface of the heart, the VAD connector defining an opening communicating with the interior of a ventricle; and

inserting a plug comprising a metallic, ceramic or polymeric body into the opening of the VAD connector so that the plug blocks the opening, wherein the plug is adapted to remain in place within the VAD connector following the surgical procedure.

19. The method as claimed in claim 18, further comprising the steps of removing the plug from the opening of the VAD connector and inserting a VAD.