US3781969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming rotatable suturing member on a device
Assignee: Medical Inc
•
Filing: 1972-08-11
•
Granted: 1974-01-01
•
Expires: 1992-08-11
Abstract
Abstract A suturing member and method of forming the suturing member on an implantable 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 located within the cover holds the cover in assembled relation with the device in a manner which allows for rotaton of the device after the suturing member has been attached to the heart tissue. In the method of forming and mounting the suturing member on the device, the suturing member is shaped and cured on the device with the use of a mold. The mold is heated to cure the plastic core of the suturing member and bond the core to the inner surface of the cover.
Inventors
- 👤 L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2403; A61F2/2406; A61F2/2409; Y; Y10; Y10S; Y10S623/00; Y10S623/901; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861; Y10T29/49863; Y10T29/49865; Y10T29/4998
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
A process of making a suturing member and mounting the suturing member on a device having an outside portion for holding the suturing member comprising: providing a cylindrical seamless cover of a size to fit around said device, placing said cover around said device with a section of the cover located adjacent the outside portion of the device, locating a sleeve of heat shrinkable material around said section of the cover, subjecting the sleeve to heat to shrink said sleeve to hold said section in engagement with the outside portion of the sleeve, enclosing plastic material within the cover, shaping the suturing member on the device into the desired shape, and curing the enclosed uncured plastic material to maintain said shape of the suturing member.
Claim 2
Dependent Claim
125 words
A process of making a suturing member and mounting the suturing member on a device having an outside portion for holding the suturing member comprising: providing a cylindrical seamless cover of a size to fit around said device, placing said cover around said device with a section of the cover located adjacent the outside portion of the device, locating a sleeve of heat shrinkable material around said section of the cover, subjecting the sleeve to heat to shrink said sleeve to hold said section in engagement with the outside portion of the sleeve, enclosing plastic material within the cover, shaping the suturing member on the device into the desired shape, and curing the enclosed uncured plastic material to maintain said shape of the suturing member.
Claim 3
Dependent Claim
29 words
The process of claim 1 including: wrapping cords around said sleeve after the sleeve has been heat shrunk and securing said cords to hold the cords on said sleeve.
Claim 4
Dependent Claim
31 words
The process of claim 1 including: providing said section of the cover with annular continuous stitches and securing said stitches to hold the cover on the outside portion of the device.
Claim 5
Dependent Claim
18 words
The process of claim 1 wherein: the core of plastic material is cured by subjecting it to heat.
Claim 6
Dependent Claim
34 words
The process of claim 1 including: providing outwardly open annular grooves in opposite end portions of said sleeve and wrapping cords in said grooves to provide a contracting holding force on said end portions.
Claim 7
Dependent Claim
23 words
The process of claim 1 wherein: the suturing member is shaped by pressing the cover and uncured plastic material into a mold cavity.
Claim 8
Dependent Claim
23 words
The process of claim 1 including: subjecting opposite end portions of said sleeve after the heat shrinking thereof to contracting and holding forces.
Claim 9
Dependent Claim
45 words
The process of claim 1 including: positioning the uncured plastic material in engagement with the inside surface of the cover during the shaping of the suturing member, and bonding the core plastic material to said inside surface during the curing of saId core plastic material.
Claim 10
Dependent Claim
21 words
The process of claim 1 including: stitching portions of the cover together to enclose the core plastic material within the cover.
References Cited (Backward Citations)
US3125346A
Cited
US1998817A
Cited
US3108852A
Cited
US3146285A
Cited
US3365728A
Cited
US3623212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |