Implantable medical endoprosthesis delivery system with hub

• US 20070208351A1
• Filed: 03/06/2006
• Published: 09/06/2007
• Est. Priority Date: 03/06/2006
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Blix, John, Moberg, John, Turner, Karen, Gerdts, Michael
• Granted Patent: US 7,621,946 B2
• Time in Patent Office: Days
• US Class Current: 606/108
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor

Abstract

Medical device delivery systems, components, and methods are provided.

Claims

1. An implantable medical endoprosthesis delivery system, comprising:

an inner member having a first lumen disposed therein;

an outer member at least partially surrounding the inner member so that a second lumen is disposed between the inner and outer members, the second lumen being configured so that an implantable medical endoprosthesis can be disposed therein; and

a hub including a fluid introduction port, a first fluid flow path in fluid communication with the fluid introduction port, and a second fluid flow path in fluid communication with the fluid introduction port,

wherein the first flow path is in fluid communication with the first lumen and the second flow path is in fluid communication with the second lumen.

2. The delivery system of claim 1, wherein the first lumen is configured to receive a guide wire.

3. The delivery system of claim 1, wherein the outer member comprises a hypotube.

4. The delivery system of claim 3, wherein the outer member further comprises a polymeric tube connected to the hypotube.

5. The delivery system of claim 1, further comprising a fluid introduction device configured to introduce fluid into the fluid introduction port.

6. The delivery system of claim 5, wherein the fluid introduction port comprises a recess for receiving the fluid introduction device.

7. The delivery system of claim 1, wherein the hub comprises a body having a proximal face, a distal face, and a bore extending from the proximal face through the body to the distal face, the bore being in fluid communication with the first and second lumens.

8. The delivery system of claim 7, wherein the body comprises:

a first section that defines a first portion of the bore; and

a second section proximal the first section, the second section defining a second portion of the bore;

wherein the first portion of the bore receives a proximal end of the outer member, the second portion of the bore receives a proximal end of the inner member, and the second portion of the bore includes a channel that defines at least a portion of the second fluid flow path.

9. The delivery system of claim 8, wherein the first portion of the bore has a diameter larger than a diameter of the second portion of the bore.

10. The delivery system of claim 8, wherein the body further comprises a third section proximal the second section, the third section defining a third portion of the bore, and the third portion of the bore being in fluid communication with the channel and with the fluid introduction port.

11. The delivery system of claim 10, wherein the third portion of the bore has a diameter smaller than a diameter of the second portion of the bore.

12. The delivery system of claim 10, wherein the body further comprises a fourth section disposed between the first and second sections and defining a counterbore flush slot that extends circumferentially around the inner member and is in fluid communication with the channel and the second lumen.

13. The delivery system of claim 1, wherein a proximal end of the outer member is affixed to the hub, and a proximal end of the inner member is affixed to the hub, the proximal end of the inner member being proximal to the proximal end of the outer member.

14. The delivery system of claim 1, further comprising a flow restrictor configured to partially occlude a proximal end of the first lumen.

15. The delivery system of claim 14, wherein the flow restrictor is removable from the system.

16. The delivery system of claim 14, wherein the flow restrictor comprises a pin that is inserted into the proximal end of the first lumen.

17. The delivery system of claim 14, wherein the hub comprises a male luer or a female luer, and the flow restrictor comprises the other of a male luer or a female luer.

18. The delivery system of claim 14, wherein the flow restrictor is configured to allow fluid to flow longitudinally therethrough.

19. The delivery system of claim 14, wherein, during use, the throughput of fluid through the first lumen is no more than about 80% different than the throughput of fluid through the second lumen.

20. The delivery system of claim 14, wherein, during use, the throughput of fluid through the first lumen is no more than about 60% different than the throughput of fluid through the second lumen.

21. The delivery system of claim 14, wherein, during use, the throughput of fluid through the first lumen is no more than about 40% different than the throughput of fluid through the second lumen.

22. The delivery system of claim 14, wherein, during use, the throughput of fluid through the first lumen is no more than about 20% different than the throughput of fluid through the second lumen.

23. The delivery system of claim 14, wherein the flow restrictor comprises a pin that extends into the proximal end of the first lumen, the proximal end of the first lumen has a transverse cross-sectional area, and the pin has a transverse cross-sectional area that is at least about 90% of the transverse cross-sectional area of the proximal end of the first lumen.

24. A hub, comprising:

a body having a proximal end, a distal end, and a longitudinal bore that extends from the proximal end to the distal end, the longitudinal bore having a first segment having a first inner diameter at the distal end, and the longitudinal bore having a second segment having a second inner diameter at a position proximal the first segment, the second inner diameter being larger than the first inner diameter;

an inner collar disposed within the second segment of the bore and having an outer diameter less than the second inner diameter, the inner collar having an inner collar bore extending longitudinally therethrough and having an inner collar bore diameter; and

at least one connector connecting the inner collar to the body;

wherein the at least one connector does not extend completely around the circumference of the inner collar, the inner collar bore and body bore sharing a common longitudinal axis.

25. The hub of claim 24, further comprising a flow restrictor that partially occludes the inner collar bore.

26. A method of flushing multiple lumens, the method comprising:

introducing fluid into a hub having a proximal end of an inner member and a proximal end of an outer member attached thereto, the hub being in fluid communication with a first lumen and a second lumen, the first lumen being disposed within the inner member, the second lumen being disposed between the inner member and the outer member, the outer member at least partially surrounding the inner member; and

pressurizing the fluid to introduce it into the first and second lumens to simultaneously flush the first and second lumens.

27. The method of claim 26, further comprising attaching a flow restrictor to the hub.