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Sealing Device And Delivery System

一种递送、医疗装置的技术，应用在密封装置领域，能够解决难以旋转等问题

Active Publication Date: 2014-09-10
WL GORE & ASSOC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] While these and other device delivery systems are designed for transcatheter device deployment, they require the use of threaded rotors, which can become difficult to rotate, or they require significant force to pull back the outer catheter to expose the restricted the entire length of the device

Method used

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  • Sealing Device And Delivery System

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0121] Use the following components and assembly process to fabricate a figure 1 sealing device.

[0122] An expanded polytetrafluoroethylene material with the following properties is obtained:

[0123] The bubble point of methanol is 1psi (pounds per square inch)

[0124] Mass / area of ​​2.2 g / m²

[0125] Maximum longitudinal load is 1.6 kg / in

[0126] 0.0003 inches thick

[0127] Longitudinal matrix tensile strength of 92,000 psi (pounds per square inch)

[0128] The following test method and setup were used to determine the above properties: The methanol bubble point was measured using a custom machine with a 1 inch diameter foot, a ramp rate of 0.2 psi / sec, and a liquid medium of methanol. Use a metal ruler to measure the length and width of the material. Mass / area was measured on 36 x 5 inch samples using a balance (ANG, Model GF-400 Top Loading Balance, San Jose, CA). The longitudinal maximum load was measured using a materials testing machine (Instron Model 5564, ...

example 2

[0148] Use the following components and assembly process to fabricate a Figure 6 sealing device.

[0149] Expanded polytetrafluoroethylene and expanded polytetrafluoroethylene with a thin layer of FEP (fluorinated ethylene propylene) material similar to that described in Example 1 were obtained.

[0150] The distal eyelet was formed by first obtaining a length of 10% platinum pull-filled Nitinol wire (Fort Wayne Metals, Fort Wayne, IN) approximately 0.23 mm in diameter. This line is labeled "First Line". The free end of the first thread is folded over itself to form an open-ended loop, and the open-ended loop is inserted into the button. The button is then inserted onto the keyed center pin. The button is shaped with an opening through the center to accommodate the keyed center pin and has features that allow it to rest securely within the winding jig. A keyed center pin (major axis about 5.79 mm and minor axis about 0.25 mm and length about 10.16 mm) was inserted into th...

example 3

[0160] Use the following components and assembly process to fabricate a Figure 8 handle components.

[0161] An injection molding process is used to make the parts of the handle assembly. Parts used by ContourPlastic (Baldwin, WI) 348 to make. This material is suitable for use in medical devices and exhibits an impressive tensile strength of 48.2 MPa and tensile modulus of 2.62 GPa. using injection molding process and 348 to make nine parts. These parts include the Second Linear Actuator, Flush Pad Holder, First Linear Actuator, Retraction Cord Lock, Spindle Control Lever, Left Body Housing, Mounting, Right Body Housing, and Lock Release Actuator device.

[0162] Other materials needed to assemble the handle are commercially available items. Catheters formed with a hand lay-up process generally known in the art (Teleflex Medical, Jeffrey, NH) had an outer diameter of 0.33 mm and an inner diameter of 0.048 mm, with a platinum-iridium marker band placed on the distal t...

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PUM

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Abstract

The invention relates to a sealing device for repair of cardiac and vascular defects or tissue opening such as a patent foramen ovale (PFO) or shunt in the heart, the vascular system, etc. and particularly provides an occluder device and trans-catheter occluder delivery system. The sealing device would have improved conformity to heart anatomy and be easily deployed, repositioned, and retrieved at the opening site.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of U.S. Patent Application Serial No. 13 / 165,673, filed June 21, 2011, which is a continuation-in-part of U.S. Patent Application Serial No. 12 / 498,586, filed July 7, 2009 application, which claims priority to US Provisional Patent Application No. 61 / 219,120, filed June 22, 2009, each of which is incorporated by reference in its entirety. technical field [0003] The present invention relates to a sealing device for the repair of cardiac and vascular defects or tissue openings such as patent foramen ovale (PFO) or shunts in the heart, vascular system, etc., and in particular provides occlusion devices and transcatheter occlusion device delivery system. Background technique [0004] Sealing devices can be used to seal many types of tissue openings, such as septal defects, PFOs, and the like. [0005] Tissue openings are traditionally corrected by open-heart surgery. To avoid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00
CPCA61B19/54A61B2017/00526A61B2017/00867A61B17/0057A61B2017/00575A61B2017/00606A61B2017/00579A61B2017/00597A61B2017/00592A61B2017/00623A61B90/39
Inventor S·J·马斯特斯
Owner WL GORE & ASSOC INC
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