Stent delivery catheter positioning device

Inactive Publication Date: 2005-03-03
BOSTON SCI SCIMED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0011] Contrary to coarse adjustments, fine displacements have been found to conserve stored potential energy within a catheter system. A physician may therefore incrementally adjust the displacement of the hub assembly unit of the present invention to accurately and predictably advance or withdraw a stent delivery or balloon dilation catheter. In the present i

Problems solved by technology

Improper placement of a stent within a desired region can cause a portion of the treated vessel to narrow, substantially decreasing the benefits of the initial medical procedure.
The catheter shaft in a medical procedure, however, is usually quite intricately routed within a patient's vascular system.
Specifically, pulling and pushing of the proximal end of a catheter may cause an unaccounted for release of stored potential energy in the catheter shaft.
Backlash causes a physician to experience either a sudden burst or a lag in relative movement of the distal end of the catheter.
This unaccounted for release f

Method used

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  • Stent delivery catheter positioning device
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Examples

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Embodiment Construction

[0024] The following detailed description should be read with reference to the drawings, in which like elements in different drawings are numbered identically. The drawings, which are not necessarily to scale, depict selected embodiments and are not intended to limit the scope of the invention. Examples of constructions, materials, dimensions and manufacturing processes are provided for selected elements. Those skilled in the art will recognize that many of the examples provided have suitable alternatives that may be utilized.

[0025] Referring now to the drawings, FIG. 1 shows one embodiment of a hub assembly unit 10 of the present invention. Hub assembly unit 10 comprises a proximal end 12 and a distal end 14. Distal end 14 includes a linking mechanism 16 connecting hub assembly unit 10 to a first medical device 18. In preferred embodiments, first medical device 18 is a catheter, and more specifically, a guide catheter. A proximal fitting is positioned at the proximal end of guide ...

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Abstract

The present invention generally relates to a medical device and procedure for accurately positioning a catheter across a desired region within a patient's vasculature. In particular, the present invention provides a hub assembly unit that allows a physician to precisely position a stent within a vessel utilizing a stent delivery catheter. The hub assembly unit includes a fine adjustment mechanism. The fine adjustment mechanism extends or contracts the length of the hub assembly unit in controlled incremental units. These controlled fine displacements are then translated directly to the stent delivery or balloon dilation catheter.

Description

CROSS-REFERENCE TO CO-PENDING APPLICATIONS [0001] This application is a continuation of U.S. application Ser. No. 09 / 784,762, filed Feb. 15, 2001.FIELD OF THE INVENTION [0002] The present invention generally relates to a medical device for positioning a stent delivery or dilatation balloon catheter within the vascular system of a patient. More specifically, the present invention discloses a hub assembly unit providing an operator the ability to finely adjust the positioning of a stent delivery or a balloon dilation catheter within a patient's vascular system. BACKGROUND OF THE INVENTION [0003] Percutaneous Transluminal Coronary Angioplasty (PTCA) is a well-established procedure for dilating stenosed vessel regions within a patient's vasculature. In this procedure, a balloon angioplasty catheter is introduced into the vasculature, typically through an incision in the femoral artery in the groin. The balloon catheter is then advanced through the femoral artery, through the aortic arch...

Claims

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Application Information

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IPC IPC(8): A61F2/95A61M25/01A61M25/10A61M25/12
CPCA61F2002/9517A61F2/95A61F2/9517
Inventor HART, COLIN P.MARTIN, KEVIN C.LECLAIR, RYAN M.VAN DIVER, MARK H.WADLEIGH, GLENN H.WETHERBEE, BILL A.
Owner BOSTON SCI SCIMED INC
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