System, device, and method for providing access in a cardiovascular environment

• US 20060178675A1
• Filed: 02/03/2006
• Published: 08/10/2006
• Est. Priority Date: 02/10/2005
• Status: Abandoned Application

• Current Assignee: Castlewood Medical Technologies, LLC
• Original Assignee: Castlewood Medical Technologies, LLC
• Inventors: Hamman, Baron L.
• Application Number:
  US11/347,542
• Publication Number:
  US 20060178675A1
• Time in Patent Office: Days
• US Class Current: 606/108
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 17/34 Trocars; Puncturing needles pointed biopsy instruments A61B10/0233; devices for piercing the ear-lobes A44C7/001; seals or hemostasis valves A61M39/06
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 2017/3486 Balloon
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue

Abstract

A device to be used in a cardiovascular environment, comprising an expandable element that is coupled to a rod and that includes a compressed state and an expanded state. The expandable element is operable to be positioned within a wall of an organ while the expandable element is in the compressed state. The expandable element is further operable to be deployed once it is within the organ such that it is in the expanded state. The device further includes a cutter element operable to make a circular incision at the wall of the organ. The expandable element creates a resistive force when it is pulled against the wall while in the expanded state such that an interface is created for making the incision. The device includes a stop-grip mechanism that maintains the resistive force at the interface. One embodiment features the expandable element being umbrella shaped.

Claims

1. A device to be used in a cardiovascular environment, comprising:

an expandable element that is coupled to a rod and that includes a compressed state and an expanded state, wherein the expandable element is operable to be positioned within a wall of an organ while the expandable element is in the compressed state, and wherein the expandable element is further operable to be deployed once it is within the organ such that it is in the expanded state; and

a cutter element operable to make a circular incision at the wall of the organ, wherein the expandable element creates a resistive force when it is pulled against the wall while in the expanded state such that an interface is created for making the incision, and wherein the device includes a stop-grip mechanism that maintains the resistive force at the interface.

2. The device of claim 1, further comprising:

a stop and a grip element, wherein when the stop and the grip element are simultaneously squeezed to exert a pressure in order to produce the resistive force at the interface.

3. The device of claim 1, wherein the cutter element is actuated by rotating the cutter element along a threaded portion of the device.

4. The device of claim 1, further comprising:

a tube operable to hold the device for entry into a targeted location.

5. The device of claim 1, further comprising:

an obturator disposed on one end of the expandable element and operable to guide the expandable element into the wall of tissue.

6. The device of claim 5, wherein the obturator is removable.

7. The device of claim 1, further comprising:

a diaphragm and a valve that collectively serve as a base for the device; and

a port coupled to the device and operable to exhaust air and debris from a system in which the device is resident.

8. The device of claim 7, wherein the diaphragm, the port, and the valve are removable to allow a valve conduit to be provided over the rod and then subsequently inserted in the hole.

9. The device of claim 1, wherein the device is of a size sufficient to allow a sealed access to a cavity of the organ for placement, manipulation, or repair of a heart valve.

10. The device of claim 1, further comprising:

a handle operable to manipulate the expandable element into its compressed state and the expanded state.

11. The device of claim 1, wherein the cutter element includes a tissue retaining element.

12. A method to be performed in a cardiovascular environment, comprising:

positioning an expandable element that is coupled to a rod and that includes a compressed state and an expanded state within a wall of an organ while the expandable element is in the compressed state;

deploying the expandable element once it is within the organ such that it is in the expanded state; and

making an incision with a cutter element operable to make a circular incision at the wall of the organ, wherein the expandable element creates a resistive force when it is pulled against the wall while in the expanded state such that an interface is created for making the incision, and wherein the device includes a stop-grip mechanism that maintains the resistive force at the interface.

13. The method of claim 12, wherein the device is of a size sufficient to allow a sealed access to a cavity of the organ for placement, manipulation, or repair of a heart valve.

14. The method of claim 12, further comprising:

manipulating a handle coupled to the expandable element to control whether the expandable element is in the compressed state or the expanded state.

15. The method of claim 12, further comprising:

simultaneously squeezing a stop and a grip element in order to exert a pressure in order to produce the locking position that maintains the interface.

16. The method of claim 12, further comprising:

actuating the cutter element by advancing the cutter element along the rod of the device.

17. The method of claim 12, further comprising:

utilizing a port coupled to the device to exhaust air and debris from a system in which the device is resident; and

removing the port.

18. The method of claim 12, further comprising:

positioning a valve conduit at the hole;

manipulating the expandable element such that it is in the compressed state; and

removing the expandable element from the hole.

19. The method of claim 12, further comprising:

coating the expandable element with an elastomeric membrane in order to facilitate sealing of the interface.

20. The method of claim 12, wherein the device is of a size sufficient to allow a sealed access to a cavity of the organ for placement, manipulation, or repair of a heart valve.