US4747407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood vessel anastomat
Assignee: FIELD SURGERY RESEARCH DEPARTMENT OF THIRD MILITARY MEDICAL UNIVERSITY
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Filing: 1986-06-02
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Granted: 1988-05-31
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Expires: 2006-06-02
Abstract
Abstract A kit for the anastomosing of a blood vessel which includes a pair of anastomic wheels. Each wheel has an axially extending hollow body for the passing of a blood vessel therethrough and a peripheral extending flange. The periphery of the flange has a plurality of forwardly extending pins for piercing and holding the wall of a blood vessel passing through the hollow body and stretched outwardly across the flange and impaled on the pins, the wheels with the blood vessel end impaled on the pins thereof being brought together with the flanges abutting and the projecting pins on the flanges being bent over the opposing flange with the stretched blood vessel wall therebetween to join the blood vessel walls. Also included are a hook and pressing needle for stretching and impaling the blood vessel ball on the pins; and clasping pliers for clasping the wheels and bending the pins.
Inventors
- 👤 Ying B. Liu
- 👤 Heng W. Yang
- 👤 Shu L. Ma
- 👤 Shi Z. Liu
- 👤 Nai H. Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:55
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/2812; A61B17/11; A61B2017/1107; A61B2017/1125
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
319 words
A blood vessel anastomat kit for blood vessel repair surgery for the anastomosing of a blood vessel, comprising a pair of anastomotic wheels, each of said wheels having an axially extending circular hollow body, a flange extending perpendicular at one end of said body and circumferentially and peripherally around said one end and a plurality of equally spaced short pins around the periphery of said flange and extending axially and forwardly from said flange and said body; a pair of anastomotic clamps for receiving said anastomotic wheels, each of said clamps having a pair of plates hinged together intermediate their ends, said plates at one end of said clamp each having one half of a circular groove member abutting with the other half of the circular groove member in the other of said plates in said clamp when said clamp is closed and forming therein and therebetween a clamp for receiving and retaining one of said anastomotic wheels with the axis of said wheel perpendicular to the direction said plates of said clamp are hinged to each other; at least one hook and at least one pressing needle for engaging and turning the end of a blood vessel passed through said axially extending circular hollow body of said anastomotic wheel, for deflecting said end outwardly over said perpendicular flange, for engaging said deflected end with said pins and for piercing and engaging said deflected end on said pins; an anastomotic wheel clasping plier for clasping said circular groove members on said clamps with said anastomotic wheels retained therein and said deflected ends of said blood vessel pierced and engaged on said pins and for deflecting the ends of said pins on said anastomotic wheels outwardly and around said perpendicular flange of the other of said wheels for clasping said anastomotic wheels and said ends of said blood vessels together; and a pair of lengthened handles for said anastomotic clamps.
Claim 2
Dependent Claim
319 words
A blood vessel anastomat kit for blood vessel repair surgery for the anastomosing of a blood vessel, comprising a pair of anastomotic wheels, each of said wheels having an axially extending circular hollow body, a flange extending perpendicular at one end of said body and circumferentially and peripherally around said one end and a plurality of equally spaced short pins around the periphery of said flange and extending axially and forwardly from said flange and said body; a pair of anastomotic clamps for receiving said anastomotic wheels, each of said clamps having a pair of plates hinged together intermediate their ends, said plates at one end of said clamp each having one half of a circular groove member abutting with the other half of the circular groove member in the other of said plates in said clamp when said clamp is closed and forming therein and therebetween a clamp for receiving and retaining one of said anastomotic wheels with the axis of said wheel perpendicular to the direction said plates of said clamp are hinged to each other; at least one hook and at least one pressing needle for engaging and turning the end of a blood vessel passed through said axially extending circular hollow body of said anastomotic wheel, for deflecting said end outwardly over said perpendicular flange, for engaging said deflected end with said pins and for piercing and engaging said deflected end on said pins; an anastomotic wheel clasping plier for clasping said circular groove members on said clamps with said anastomotic wheels retained therein and said deflected ends of said blood vessel pierced and engaged on said pins and for deflecting the ends of said pins on said anastomotic wheels outwardly and around said perpendicular flange of the other of said wheels for clasping said anastomotic wheels and said ends of said blood vessels together; and a pair of lengthened handles for said anastomotic clamps.
Claim 3
Dependent Claim
79 words
A blood vessel anastomat kit as claimed in claim 1, characterized in that said anastomotic wheel is a metallic circular wheel which comprises a circular inner wall forming said axially extending circular hollow body, said hollow body being open at its axial ends, and a plurality of sharp pins uniformly and symmetrically distributing on the periphery of said flange, said sharp pins being bent into 90 degrees angle to the surface of said flange when said anastomat is assembled.
Claim 4
Dependent Claim
25 words
A anastomotic wheel as claimed in claim 2, characterized in that said circular wheel, said flange and said sharp pins are a punch fabricated unit.
Claim 5
Dependent Claim
51 words
A anastomotic wheel as claimed in claim 2, characterized in that said sharp pins each has a root section width between 0.34 and 0.8 mm and are connected on the outer rim of said flange; the number of said sharp pins being not less than 4 and not more than 6.
Claim 6
Dependent Claim
39 words
A anastomotic wheel as claimed in claim 2, characterized in that said circular inner wall of said anastomotic wheel and said flange form an angle of 90 degrees at the junction between said circular inner wall and said flange.
Claim 7
Dependent Claim
30 words
A anastomotic wheel as claimed in claim 2, characterized in that said anastomotic wheel is made of a metal selected from the group stainless steel, tantalum titanium and alloys thereof.
Claim 8
Dependent Claim
86 words
A blood vessel anastomat clamp as in claim 1, wherein said anastomotic wheel clasping plier is composed of left and right plier pieces, and are connected into one integral unit at gill section by gill axle screw; the handle section of said clasping plier connects with a band spring means; and the head section of said plier has a fork opening forming an obtuse angle with said plier handle, and the clasped plane of said plier is perpendicular to the front view plane of said plier.
Claim 9
Dependent Claim
119 words
A blood vessel anastomat as claimed in claim 1, wherein said anastomotic clamps comprise a male clamp and a female clamp, each clamp being composed of a long and short plate said long and short plates of each clamp combined into one integral unit by a gill axle at gill section forming said plates, each of said clamps has a head section with a circular groove for receiving said anastomotic wheel, a handle section on each of said clamps, said handle section having a compression spring, one end of said spring being fixed on said short plate of said clamp, the other end of said spring being fixed on said long plate of the clamp through an adjustable screw.
Claim 10
Dependent Claim
43 words
A anastomotic clamp as claimed in claim 8, characterized in that said male clamp is provided with two pin bolts and said female clamp is provided with two pin holes, the ends of said long plates of said clamps having a swallowtail connector.
Claim 11
Dependent Claim
63 words
A anastomotic clamp as claimed in claim 8, characterized in that said circular groove for receiving said anastomotic wheel is formed for passing a blood vessel wall through said circular inner wall of said anastomotic wheel into said inner hole of said anastomotic clamp, and extends toward an anastomotic plane through a level annular section and an arc section to said anastomotic plane.
Claim 12
Dependent Claim
64 words
A blood vessel anastomat claimed as in claim 8, wherein a lengthened handle is attached to said long plate of each of said anastomotic clamps, said lengthened handle having a compression screw nut located on the top end of said handle which nut threads on a fixed bolt; on said lengthened handle for fixing said lengthened handle to said long plate of said clamp.
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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) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |