VALVE LOADER METHOD, SYSTEM, AND APPARATUS

• US 20090292262A1
• Filed: 04/10/2009
• Published: 11/26/2009
• Est. Priority Date: 10/12/2007
• Status: Active Grant

• Current Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Original Assignee: Spiration, Inc. (Olympus Corporation)
• Inventors: Kutsko, James Mark, O'Connell, Desmond, Adams, Martin Neal
• Granted Patent: US 8,043,301 B2
• Time in Patent Office: Days
• US Class Current: 604/264
• CPC Class Codes: A61F 2/0095 Packages or dispensers for prostheses or other implants for intraocular lenses A61F2/1691; for dental surgery A61C19/02
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/043 Bronchi
• CPC Class Codes: A61F 2250/008 Alarm means
• CPC Class Codes: A61F 2250/0097 Visible markings, e.g. indicia

Abstract

A valve loading system is provided that uses a valve loader to transfer a valve or other medical device from a storage cartridge into a deployment catheter. The valve or other medical device can be implanted or positioned within a patient using the catheter after the valve or other medical device has been compressed and loaded into the catheter using the valve loader. The process then can be repeated by using the valve loading system to load or introduce another valve or other medical device into the catheter.

Claims

1. A deployment catheter for the deployment of a medical device, the deployment catheter comprising:

a catheter shaft comprising a proximal end and a distal end;

a cavity inside a distal portion of the catheter shaft adapted to receive a medical device; and

,

a locator marking disposed along a distal portion of the catheter shaft, the locator marking being viewable from an outside of the catheter shaft, and the locator marking corresponding to an approximate deployment site of the medical device disposed within the catheter shaft.

2. The catheter of claim 1, wherein the locator marking comprises one or more pigmented bands.

3. The catheter of claim 2, wherein at least one of the pigmented bands is yellow.

4. The catheter of claim 2, wherein the pigmented bands comprise a yellow pigmented band with two black pigmented bands disposed on either side of the yellow pigmented band.

5. The catheter of claim 1, wherein the catheter shaft further comprises a stabilization wire extending within the catheter shaft.

6. The catheter of claim 5, wherein the catheter shaft retracts relative to the stabilization wire during deployment of the medical device.

7. The catheter of claim 1, wherein the medical device is a valve.

8. The catheter of claim 1 further comprising a rigid tip disposed at the distal end of the cavity inside the catheter shaft, the rigid tip able to accommodate at least a portion of the medical device loaded therein.

9. The catheter of claim 8 further comprising an at least partially transparent segment disposed between the locator marking and the rigid tip, the at least partially transparent segment permitting visualization of at least a portion of the cavity near the distal end of the catheter shaft.

10. The catheter of claim 1, wherein the catheter shaft further comprises a strain relief tube extending over at least a proximal portion of the catheter shaft.

11. The catheter of claim 10, wherein the strain relief tube comprises a lubricious material.

12. The catheter of claim 11, wherein the lubricious material is polytetrafluoroethylene.

13. The catheter of claim 10, wherein the thickness of the strain relief tube fills substantially all of the distance between an outer surface of the delivery catheter and an inner surface of a bronchoscope into which the catheter is inserted.

14. The catheter of claim 13, wherein the delivery catheter is disposed within a working channel of the bronchoscope and wherein the bronchoscope is a 2.0 mm bronchoscope.

15. The catheter of claim 13, wherein the delivery catheter is disposed within a working channel of the bronchoscope and wherein the bronchoscope is a 2.6 mm bronchoscope.

16. The catheter of claim 13, wherein a clearance between an outer surface of the strain relief tube and an inner lumen surface of the bronchoscope is between 0.5% and 3%.

17. The catheter of claim 13, wherein a clearance between an inner surface of the strain relief tube and an outer surface of the delivery catheter is between 1.8% to 5.1%.

18. The catheter of claim 1, wherein the distal portion of the catheter shaft further comprises at least a segment of coils.

19. A method of deploying a medical device in a lung, comprising

loading a medical device into a distal end of a catheter, the catheter comprising locator markings corresponding to a location of the medical device;

inserting the catheter into a bronchoscope;

directing the bronchoscope to a portion of a lung to be treated with the medical device;

aligning the locator markings with the portion of a lung to be treated; and

deploying the medical device at the portion of a lung to be treated.

20. The method of claim 19, wherein the medical device is a one-way valve.