Patent US5047013A successfully refreshed from Google Patents.
US5047013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Varicose vein probe with hollow curved spiral tip
Assignee: Astra Tech AB
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Filing: 1989-09-08
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Granted: 1991-09-10
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Expires: 2009-09-08
Abstract
Abstract The invention relates to a probe for treating varicose veins, comprising a flexible plastic tube with a tip portion which can be guided through varicose veins at its front end, the tube being at least as long as the veins to be treated. To enable a sclerosing agent to be injected at desired points along the varicose vein, the invention proposes that the probe should have at least one lateral opening in the region of the tip portion, and that the inner cavity of the tube should form a flow connection from a joining piece at the rear end of the tube to the lateral opening, for injection of sclerosing agent.
Inventors
- 👤 Sonja Rossdeutscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:30
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61B; A61B17/00; A61B17/00008; A61M25/0067; A61M25/0068; A61M25/007
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
A probe for treating varicose veins, comprising a flexible plastic tube having a circular cross section with a tip portion at least a part of which is curbed in a spiral and having a closed rounded front end thereon, which can be guided through varicose veins at its front end, and wherein the circular cross-section is within at least a portion of said spiral, the tube being at least as long as the vein to be treated, wherein said probe has at least one lateral opening in the spiral of said tip portion and removed from said front end, and an inner cavity of said tube forming a flow connection from a joining piece at a rear end of said tube to said lateral opening in said tip portion for injection of a sclerosing agent.
Claim 2
Dependent Claim
135 words
A probe for treating varicose veins, comprising a flexible plastic tube having a circular cross section with a tip portion at least a part of which is curbed in a spiral and having a closed rounded front end thereon, which can be guided through varicose veins at its front end, and wherein the circular cross-section is within at least a portion of said spiral, the tube being at least as long as the vein to be treated, wherein said probe has at least one lateral opening in the spiral of said tip portion and removed from said front end, and an inner cavity of said tube forming a flow connection from a joining piece at a rear end of said tube to said lateral opening in said tip portion for injection of a sclerosing agent.
Claim 3
Dependent Claim
20 words
The probe as recited in claim 1 wherein said lateral opening is in the front third of said tip portion.
Claim 4
Dependent Claim
14 words
The probe of claim 2 wherein said tip portion is curved in a spiral.
Claim 5
Dependent Claim
12 words
The probe of claim 3 wherein said plastic tube has a reinforcement.
Claim 6
Dependent Claim
12 words
The probe of claim 2 wherein said plastic tube has a reinforcement.
Claim 7
Dependent Claim
12 words
The probe of claim 1 wherein said plastic tube has a reinforcement.
Claim 8
Dependent Claim
12 words
The probe of claim 1 wherein said plastic tube has a reinforcement.
Claim 9
Independent Claim
130 words
A method for treating varicose veins which comprises: inserting a probe into the vein and injecting a sclerotizing agent through a lateral opening in the probe into the vein, proximate the location of branches from the vein, said probe comprising a flexible plastic cylindrical tube with a tip portion, having a closed rounded end thereon, which can be guided through varicose veins at its front end, the tube being at least as long as the vein to be treated, wherein said probe has at least one lateral opening in the region of the tip portion, an inner cavity of said tube forming a flow connection from a joining piece at a rear end of said tube to the lateral opening in the tip portion for injection of the sclerosing agent.
Claim 10
Independent Claim
130 words
A method for treating varicose veins which comprises: inserting a probe into the vein and injecting a sclerotizing agent through a lateral opening in the probe into the vein, proximate the location of branches from the vein, said probe comprising a flexible plastic cylindrical tube with a tip portion, having a closed rounded end thereon, which can be guided through varicose veins at its front end, the tube being at least as long as the vein to be treated, wherein said probe has at least one lateral opening in the region of the tip portion, an inner cavity of said tube forming a flow connection from a joining piece at a rear end of said tube to the lateral opening in the tip portion for injection of the sclerosing agent.
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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) | 1994-09-09 | 1995-03-11 | 1995-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-09 | 1999-03-11 | 1999-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-09 | 2003-03-11 | 2003-09-10 | $7700.00 | Window Closed / Lapsed |