US4046149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for removing a foreign substance from the body cavity of human being
Assignee: Olympus Corp
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Filing: 1976-01-28
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Granted: 1977-09-06
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Expires: 1996-01-28
Abstract
Abstract An instrument is adapted to be inserted through an endoscope channel into the body cavity of the human being together with an endoscope and remove a foreign substance such as polyp and stone within the body cavity of the human being. The instrument has trap means separable from the elongated tubular instrument body and the trap means are left within the body cavity of the human being, while being supported from the forward end of the supporting wire introduced into the body cavity of the human being together with the tubular instrument body, after they trap the foreign substances. The trapped foreign substances are drawn out through a supporting wire from within the body cavity of the human being together with the trap means when the endoscope is withdrawn from within the body cavity of the human being.
Inventors
- 👤 Osamu Komiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/221; A61B17/30; A61B2017/2212
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
171 words
An instrument inserted through a channel of an endoscope for trapping a foreign substance, such as a polyp or stone, and removing it outside of the body cavity of a human being, comprising: an elongated flexible instrument body having an outer tube, an inner tube, and a control wire axially and slidably inserted into the inner tube and having a hook member at one end thereof, said hook member having a cutout at its side; trap means having a loop-like anchoring member releasably anchored within said cutout of the hook member, said anchoring member being detachable from the cutout of the hook member when the hook member is moved out of the inner tube, thereby releasing the trap means from the instrument body; a ring member slidably moved and fitted over the trap means for squeezing the same; and a supporting wire one end of which supports the trap means released from the instrument body, the other end of which passes through the channel of the endoscope and extends outside thereof.
Claim 2
Dependent Claim
171 words
An instrument inserted through a channel of an endoscope for trapping a foreign substance, such as a polyp or stone, and removing it outside of the body cavity of a human being, comprising: an elongated flexible instrument body having an outer tube, an inner tube, and a control wire axially and slidably inserted into the inner tube and having a hook member at one end thereof, said hook member having a cutout at its side; trap means having a loop-like anchoring member releasably anchored within said cutout of the hook member, said anchoring member being detachable from the cutout of the hook member when the hook member is moved out of the inner tube, thereby releasing the trap means from the instrument body; a ring member slidably moved and fitted over the trap means for squeezing the same; and a supporting wire one end of which supports the trap means released from the instrument body, the other end of which passes through the channel of the endoscope and extends outside thereof.
Claim 3
Dependent Claim
59 words
The instrument according to claim 1, in which said trap means includes a cage made of a plurality of wire elements, the ends of said cage being rigidly secured by a head connector and a base connector respectively; and said one end of the supporting wire being tied to the wire elements in the neighborhood of the head connector.
Claim 4
Dependent Claim
59 words
The instrument according to claim 1, in which said trap means includes a cage made of a plurality of wire elements, the ends of said cage being rigidly secured by a head connector and a base connector respectively; some of said wire elements extending rearwardly beyond the base connector to provide a loop which serves as said anchoring member.
Claim 5
Dependent Claim
21 words
The instrument according to claim 3, in which said one end of the supporting wire is tied to said anchoring member.
Claim 6
Dependent Claim
28 words
The instrument according to claim 3, in which said anchoring member has a tendency to be resiliently urged sidewise with respect to the axis of the trap means.
Claim 7
Dependent Claim
40 words
The instrument according to claim 1, in which said trap means includes a clip member in the form of a figure eight having one loop openable, and said anchoring member of the trap means is made of a looped wire.
Claim 8
Dependent Claim
30 words
The instrument according to claim 1, in which said one end of the supporting wire is formed to have a hook on which a plurality of trap means are anchored.
References Cited (Backward Citations)
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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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |