US4846175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Probe for introduction into the human or animal body, in particular a papillotome
Assignee: ERINTRUD FRIMBERGER A CORP OF WEST GERMANY
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Filing: 1987-12-17
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Granted: 1989-07-11
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Expires: 2007-12-17
Abstract
Abstract A probe for introduction into the human or animal body, having a sheath of flexible material and a traction element extending longitudinally in the sheath that is fastened to the sheath for the purpose of effecting curvature by exerting traction at its outer end and runs on one side of the sheath in the region of curvature (B), in particular a papillotome, is to be designed so as to obtain a specified direction of curvature. For this purpose the sheath has different moments of resistance to bending in two mutually perpendicular directions across its cross-section, and the traction element is arranged on the side towards which the sheath has the smaller moment of resistance.
Inventors
- 👤 Eckart Frimberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:34
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0147; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B17/00; A61B17/32; A61B17/3205; A61B17/32056; A61B2018/1405; A61B2018/144; A61M2025/0163
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
A probe for introduction into the human or animal body, in particular a papillotome comprising a sheath of flexible material and a traction element extending longitudinally in the sheath, said traction element being fastened to the sheath for purpose of effecting curvature of the sheath by exerting traction at an outer end of said sheath, said traction element running on one side of the sheath in the region of curvature, wherein the sheath is tubular and flattened in the region of curvature to have an elongated oval or rectangular cross section, and wherein said sheath further has different moments of resistance to bending in two mutually perpendicular directions across said cross section, such that the traction element is arranged on the side towards which the sheath has the smaller moment of resistance to bending.
Claim 2
Dependent Claim
134 words
A probe for introduction into the human or animal body, in particular a papillotome comprising a sheath of flexible material and a traction element extending longitudinally in the sheath, said traction element being fastened to the sheath for purpose of effecting curvature of the sheath by exerting traction at an outer end of said sheath, said traction element running on one side of the sheath in the region of curvature, wherein the sheath is tubular and flattened in the region of curvature to have an elongated oval or rectangular cross section, and wherein said sheath further has different moments of resistance to bending in two mutually perpendicular directions across said cross section, such that the traction element is arranged on the side towards which the sheath has the smaller moment of resistance to bending.
Claim 3
Dependent Claim
54 words
A probe according to claim 1, wherein the sheath has associated with it a bending element that has different resistance moments in respect of two mutually perpendicular directions across its cross-section and is so arranged that the traction element is arranged on the side towards which the bending element exhibits the smaller resistance moment.
Claim 4
Dependent Claim
14 words
A probe according to claim 2, wherein the bending element is a leaf spring.
Claim 5
Dependent Claim
15 words
A probe according to claim 2, wherein the bending element is arranged in the sheath.
Claim 6
Dependent Claim
20 words
A probe according to claim 2, wherein the traction element is fastened at the inner end of the bending element.
Claim 7
Dependent Claim
22 words
A probe according to claim 2, wherein an extension on the outer end of the bending element expends beyond the bending section.
Claim 8
Dependent Claim
23 words
A probe according to claim 6, wherein the extension has a corrugated or zig-zag shape traverse to the plane of the leaf spring.
Claim 9
Dependent Claim
21 words
A probe according to claim 1, wherein the bending plane extends on one or the other side of the traction element.
Claim 10
Dependent Claim
56 words
A probe according to claim 1, wherein said probe is provided with a traction element lying in a bending plane located between planes defined by said two mutually perpendicular directions across said cross section of said sheath, such that the cutting angle is offset from one side of the sheath having a smaller moment of resistance.
Claim 11
Dependent Claim
30 words
A probe according to claim 1, wherein said sheath has a smaller moment of resistance to bending in a direction defined by the minor axis of said oval cross section.
References Cited (Backward Citations)
CA524909A
Cited
DE2426781A1
Cited
US3906938A
Cited
DE2657256A1
Cited
US4315509A
Cited
US4325374A
Cited
US4485812A
Cited
US4724836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |