US3800403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a suturing member and mounting the suturing member on a device
Assignee: Medical Inc
•
Filing: 1972-10-10
•
Granted: 1974-04-02
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Expires: 1992-10-10
Abstract
Abstract A suturing member and method of making the suturing member on an implantable prosthetic device, as a heart valve. The suturing member has a porous fabric cover surrounding a semi-rigid plastic core. An annular sleeve of heat shrinkable plastic material is located within the cover to hold the cover in assembled relation with the device in a manner which allows for rotation of the device after the suturing member has been attached to the tissue. The seam of the cover is located between the annular sleeve and the device. In the method of making the suturing member, the cover is located around the core and annular sleeve before it is mounted on the device. After the suturing member is mounted on the device, it is heated to cure the plastic core, bond the core to the inner surface of the cover, and heat shrink the sleeve around the device.
Inventors
- 👤 L Anderson
- 👤 W Andres
- 👤 U Swanson
- 👤 E Artmann
- 👤 F Child
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:45
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2409; A61F2/2403; A61F2/2406; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861; Y10T29/49863; Y10T29/49865; Y10T29/4998
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
78 words
A process of making a suturing member and mounting the suturing member on a device comprising: enclosing within a cover an annular sleeve of heat shrinkable material and a core of uncured plastic material; locating the cover and enclosed sleeve and core around the device; forming the suturing member into a desired shape, and heating the cover and enclosed sleeve and core to heat shrink the sleeve around the device and cure the plastic material of the core.
Claim 2
Dependent Claim
78 words
A process of making a suturing member and mounting the suturing member on a device comprising: enclosing within a cover an annular sleeve of heat shrinkable material and a core of uncured plastic material; locating the cover and enclosed sleeve and core around the device; forming the suturing member into a desired shape, and heating the cover and enclosed sleeve and core to heat shrink the sleeve around the device and cure the plastic material of the core.
Claim 3
Dependent Claim
53 words
The process of claim 1 wherein: during the forming of the suturing member the uncured plastic material of the core is positioned into engagement with the inside surface of the cover, and during the heating of the cover the plastic material of the core is bonded to the inside surface of the cover.
Claim 4
Dependent Claim
23 words
The process of claim 1 wherein: a measured amount of uncured plastic material is positioned adjacent the sleeve and enclosed by the cover.
Claim 5
Dependent Claim
21 words
The process of claim 1 including: stitching the cover together to enclose the sleeve and uncured plastic material within the cover.
Claim 6
Dependent Claim
18 words
The process of claim 1 including: closing the cover by connecting adjacent end portions of the cover together.
Claim 7
Dependent Claim
22 words
The process of claim 5 wherein: the connected adjacent end portions of the cover are located between the sleeve and the device.
Claim 8
Dependent Claim
27 words
The process of claim 1 wherein: the suturing member is formed on the device by pressing the suturing member into a mold cavity having the desired shape.
Claim 9
Dependent Claim
51 words
The process of claim 1 including: connecting the cover together adjacent one side of the core to enclose the sleeve and core within the cover, and locating the connecting portions of the cover between the sleeve and device after the cover aNd enclosed sleeve and core are located on the device.
Claim 10
Dependent Claim
29 words
The process of claim 1 including: connecting the end portions of the cover together adjacent the inside of the sleeve to enclose the sleeve and core within the cover.
Claim 11
Dependent Claim
182 words
A process of making a suturing member and mounting the suturing member on a device having an annular outside portion for holding the suturing member comprising: providing a cover of porous material of a size to be positioned around the device so that part of the cover can be located adjacent the outside portion of the device; locating uncured plastic core material and an annular sleeve of heat shrinkable material adjacent the cover, enclosing the uncured plastic core material and sleeve within the cover in an annular shape, locating the cover and enclosed sleeve and core around the device, forming the suturing member on the device by pressing the cover and enclosed core of plastic material into a desired shape and positioning the uncured plastic material in engagement with the inside surface of the cover, and heating the cover and enclosed core of plastic material and sleeve of heat shrinkable material to cure the plastic material, heat shrink the sleeve and bond the core of plastic material to the inside surface of the cover to maintain the shape of the suturing member.
Claim 12
Dependent Claim
182 words
A process of making a suturing member and mounting the suturing member on a device having an annular outside portion for holding the suturing member comprising: providing a cover of porous material of a size to be positioned around the device so that part of the cover can be located adjacent the outside portion of the device; locating uncured plastic core material and an annular sleeve of heat shrinkable material adjacent the cover, enclosing the uncured plastic core material and sleeve within the cover in an annular shape, locating the cover and enclosed sleeve and core around the device, forming the suturing member on the device by pressing the cover and enclosed core of plastic material into a desired shape and positioning the uncured plastic material in engagement with the inside surface of the cover, and heating the cover and enclosed core of plastic material and sleeve of heat shrinkable material to cure the plastic material, heat shrink the sleeve and bond the core of plastic material to the inside surface of the cover to maintain the shape of the suturing member.
Claim 13
Dependent Claim
19 words
The process of claim 10 wherein: the cover is closed by connecting adjacent end portions of the cover together.
Claim 14
Dependent Claim
27 words
The process of claim 10 wherein: the connected adjacent end portions of the cover are located between the sleeve and the annular outside portion of the device.
Claim 15
Dependent Claim
14 words
The process of claim 10 wherein: the cover is a seamless cylindrical fabric member.
Claim 16
Dependent Claim
49 words
The process of claim 10 including: attaching adjacent end portions of the cover together to enclose the core and sleeve within the cover, and positioning the attached adjacent end portions between the sleeve and outside portion of the device after locating the cover, sleeve and core around the device.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |