Stents and catheters having improved stent deployment
a technology of stents and catheters, which is applied in the field of delivery systems of vascular implants, can solve the problems of stent self-expansion, fragments of coating or shell to dissolve or biodegrade, and compromise of coating or shell, etc., and achieve the effect of restricting diametrical expansion
Inactive Publication Date: 2013-11-14
SCHNEIDER LUCAS TRADD +4
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The patent describes a type of stent that has a coating or shell that prevents it from expanding too much when it is placed in a person's body. This stent can be expanded when the coating or shell is dissolved or broken down by the body's own fluids or enzymes. This technology helps to control the expansion of the stent and can improve its effectiveness in treating medical conditions such as blockages in blood vessels.
Problems solved by technology
Upon inflating the balloon the coating or shell is compromised or fractured and the stent self-expands or is further expanded by further inflation of the balloon.
Exposure to dissolution fluid or biodegradation media causes fragments of the coating or shell to dissolve or biodegrade.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024]Embodiments that are examples of how inventive aspects in accordance with the principles of the present invention will now be described in more detail with reference to the drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad inventive aspects disclosed herein. It will also be appreciated that the inventive concepts disclosed herein are not limited to the particular stent configurations disclosed herein, but are instead applicable to any number of different stent configurations.
[0025]FIGS. 1A and 1B illustrate implant delivery system 1 comprised of stent 10, catheter shaft 5 with hub 3 and guidewire lumen 6 extending through catheter shaft and hub. Catheter shaft 5 is relatively flexible, may be comprised of a polymeric material such as nylon or PEBAX, and may range in length from 60 cm to 300 cm. Catheter outside diameter may range from about ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| lengths | aaaaa | aaaaa |
| release time | aaaaa | aaaaa |
Login to View More
Abstract
An implant delivery system and method comprises an implant, for example, a stent, and a delivery catheter. The stent has a scaffold with a coating or a shell that retains the scaffold in a collapsed configuration. The coating or shell is made of a material that dissolves or biodegrades upon exposure to a dissolution or biodegradation media. The stent is used with an implant delivery system which has a catheter with a catheter, wherein the stent is mounted on the catheter shaft. The catheter shaft is configured to be withdrawn through the patient's vessel when the scaffold is in its expanded configuration. Advantageously, the implant is thereby prevented from changing length during implant delivery and implant deployment.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. provisional application Ser. No. 61 / 095,766, filed Sep. 10, 2008, the entire content of which is incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to systems for delivering an implant to a site in a body lumen. More particularly, this invention pertains to delivery systems for a vascular implant such as a self-expanding stent.BACKGROUND OF THE INVENTION[0003]Stents are widely used for supporting a lumen structure in a patient's body. For example, stents may be used to maintain patency of a coronary artery, carotid artery, cerebral artery, femoral artery, other blood vessels including veins, or other body lumens such as the ureter, urethra, bronchus, esophagus, or other passage.[0004]Stents are commonly metallic tubular structures made from stainless steel, Nitinol, Elgiloy, cobalt chrome alloys, tantalum, and other metals, although polymer...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/962
CPCA61F2/962A61F2/95A61F2/958A61F2/966A61F2002/9505A61F2002/9665A61F2210/0004A61F2/82A61L27/54A61M25/01A61F2/844
Inventor SCHNEIDER, LUCAS TRADDLADD, BRYAN MATTHEWKUSLEIKA, RICHARDKRAVIK, RICKVREEMAN, SANDRA
Owner SCHNEIDER LUCAS TRADD