US4018229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for ligation of affected part in coeloma
Assignee: Olympus Corp
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Filing: 1975-09-10
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Granted: 1977-04-19
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Expires: 1995-09-10
Abstract
Abstract An apparatus for ligation of affected part in coeloma comprises an inner and an outer flexible tube. A ligature or tie-up thread is provided with a loop formation, one end of which is disposed within the inner tube. The outer tube houses the loop formation, the inner tube and a pair of holding wires which are associated with the loop formation. In use, the outer tube is inserted into a coeloma and then retracted relative to the inner tube to move the loop formation out of the outer tube, whereupon the holding wires cooperate with the loop formation to extend it into an enlarged loop, which is then engaged with an affected part in the coeloma. Subsequently, one end of the loop formation is externally pulled through the inner tube, reducing the area of the loop for the purpose of ligation of the affected part.
Inventors
- 👤 Osamu Komiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12009; A61B17/12013; A61B1/00; A61B1/31; A61B17/04; A61B17/0469; A61B2017/0474; A61B2017/0477
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
208 words
An apparatus for ligation of an affected part in coeloma comprising a ligature having a loop formation which is adapted to form a loop for ligating an affected part in an coeloma, the loop being reduced in size by pulling one end of the loop formation; an inner flexible tube into which said one end of the ligature extends; a pair of holding wires each having one end mounted on a distal end portion of the inner tube and having a free end formed as a capture for releaseably engaging the loop formation, the captures being effective to retain the loop formation therein below a given level of tension in the loop formation; and an outer flexible tube for internally housing the loop formation, the holding wires and the inner flexible tube in compacted condition; said outer flexible tube adapted for insertion into a coeloma, the outer tube being adapted to be operated for displacement in a direction to expose the loop formation and the holding wires into the coeloma, the holding wires being resiliently biased in a manner such that their respective captures are effective to extend the loop formation into a loop of an increased size when it is exposed while maintaining engagement with the captures.
Claim 2
Independent Claim
208 words
An apparatus for ligation of an affected part in coeloma comprising a ligature having a loop formation which is adapted to form a loop for ligating an affected part in an coeloma, the loop being reduced in size by pulling one end of the loop formation; an inner flexible tube into which said one end of the ligature extends; a pair of holding wires each having one end mounted on a distal end portion of the inner tube and having a free end formed as a capture for releaseably engaging the loop formation, the captures being effective to retain the loop formation therein below a given level of tension in the loop formation; and an outer flexible tube for internally housing the loop formation, the holding wires and the inner flexible tube in compacted condition; said outer flexible tube adapted for insertion into a coeloma, the outer tube being adapted to be operated for displacement in a direction to expose the loop formation and the holding wires into the coeloma, the holding wires being resiliently biased in a manner such that their respective captures are effective to extend the loop formation into a loop of an increased size when it is exposed while maintaining engagement with the captures.
Claim 3
Dependent Claim
16 words
An apparatus according to claim 1 in which the ligature is formed of a knitted material.
Claim 4
Dependent Claim
15 words
An apparatus according to claim 1 in which the holding wires comprise resilient metal wires.
Claim 5
Dependent Claim
29 words
An apparatus according to claim 3 in which the capture of the holding wires is integrally formed in the holding wires by bending the material of the holding wires.
Claim 6
Dependent Claim
296 words
Apparatus for ligation of an affected part comprising: a first assembly including a ligature, a first flexible tubular member, movable means positioned within said tubular member, and a pair of resilient wire-like elements; said ligature having a first and a second end, said first end being slidably knotted about said ligature to form a knot therein; said first flexible tubular member having an open end; said ligature second end extending at least partially into said open end of said first tubular member; said movable means positioned in said first tubular member and axially slidable therethrough, one end of said movable means being joined to said second end of said ligature; said open end of said first tubular member being of a size adapted to prevent said knotted first end of said ligature from entering into said first tubular member; said pair of resilient wire-like elements having their first ends secured to said first tubular member and having releasable gripping means at their opposite free ends for releasable gripping portions of said ligature at spaced locations along said loop; a second hollow tubular member for slottedly receiving said first assembly; and, means for axially moving said first assembly relative to said second hollow tubular member to project said loop and said free ends of said wire-like elements beyond one end of said second hollow tubular member, the free ends of said resilient wire-like elements being biased radially outward with respect to said second hollow tubular member whereby said free ends of said wire-like elements move away from one another to increase the distance between said gripped portions of said ligature as said wire-like elements are further extended from said one end of said second hollow tubular member to facilitate encirclement of an affected part by said loop.
Claim 7
Dependent Claim
296 words
Apparatus for ligation of an affected part comprising: a first assembly including a ligature, a first flexible tubular member, movable means positioned within said tubular member, and a pair of resilient wire-like elements; said ligature having a first and a second end, said first end being slidably knotted about said ligature to form a knot therein; said first flexible tubular member having an open end; said ligature second end extending at least partially into said open end of said first tubular member; said movable means positioned in said first tubular member and axially slidable therethrough, one end of said movable means being joined to said second end of said ligature; said open end of said first tubular member being of a size adapted to prevent said knotted first end of said ligature from entering into said first tubular member; said pair of resilient wire-like elements having their first ends secured to said first tubular member and having releasable gripping means at their opposite free ends for releasable gripping portions of said ligature at spaced locations along said loop; a second hollow tubular member for slottedly receiving said first assembly; and, means for axially moving said first assembly relative to said second hollow tubular member to project said loop and said free ends of said wire-like elements beyond one end of said second hollow tubular member, the free ends of said resilient wire-like elements being biased radially outward with respect to said second hollow tubular member whereby said free ends of said wire-like elements move away from one another to increase the distance between said gripped portions of said ligature as said wire-like elements are further extended from said one end of said second hollow tubular member to facilitate encirclement of an affected part by said loop.
Claim 8
Dependent Claim
67 words
The apparatus of claim 5 wherein the size of said loop is reduced by pulling said ligature second end more deeply into said first tubular member by operation of said movable means thereby moving the gripped portions of said loop closer together; said gripping means being adapted to release the gripped portions of the loop when the size of the loop is reduced by a predetermined amount.
Claim 9
Dependent Claim
12 words
The apparatus of claim 6 wherein said elements comprise resilient metallic wires.
Claim 10
Dependent Claim
23 words
The apparatus of claim 7 wherein said free ends are bent to form a substantially C-shaped gripping structure for releasably gripping said ligature.
Claim 11
Dependent Claim
14 words
The apparatus of claim 5 wherein said ligature is formed of a knitted material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |