Patent US3886933A successfully refreshed from Google Patents.
US3886933A
Expired / Lapsed
US
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Ureteral catheter device
Assignee: Olympus Corp
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Filing: 1973-10-10
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Granted: 1975-06-03
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Expires: 1993-10-10
Abstract
Abstract A ureteral catheter device has a flexible guide tube insertible through a control body of a cystoscope into a bladder so that its forward end extends into the bladder and a small-diametered tube insertible through the control body into the guide tube so that its forward end extends through the forward end of the guide tube into a ureter. The guide tube is adapted to be inserted into the ureter with the small-diametered tube as a guide. After the small-diametered tube is withdrawn, treatment devices can be sequentially inserted for medical treatment.
Inventors
- 👤 Toshiyuki Mori
- 👤 Kunio Kinoshita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:18
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/012; A61B1/018; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00098; A61B1/002; A61B1/307
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
A ureteral catheter device comprising a cystoscope including an insert body insertible into the human body, a control body positioned outside the human body, an observation optical system for permitting the interior of a bladder to be observed outside the human body and an illumination optical system for illuminating the interior of the bladder; a flexible guide tube adapted to be inserted through the control body into the cystoscope, the forward end of said flexible guide tube being extendible through said insert body; and a flexible elongated member adapted to be removably inserted through the guide tube and extended through the forward end of the flexible guide tube into the interior of a ureter whereby said guide tube can be further inserted with the elongated member as a guide to permit its forward end to project into the interior of the ureter.
Claim 2
Dependent Claim
142 words
A ureteral catheter device comprising a cystoscope including an insert body insertible into the human body, a control body positioned outside the human body, an observation optical system for permitting the interior of a bladder to be observed outside the human body and an illumination optical system for illuminating the interior of the bladder; a flexible guide tube adapted to be inserted through the control body into the cystoscope, the forward end of said flexible guide tube being extendible through said insert body; and a flexible elongated member adapted to be removably inserted through the guide tube and extended through the forward end of the flexible guide tube into the interior of a ureter whereby said guide tube can be further inserted with the elongated member as a guide to permit its forward end to project into the interior of the ureter.
Claim 3
Dependent Claim
32 words
The ureteral catheter device according to claim 1 in which said cystoscope has means for adjusting the inclination angle of the forward end portion of the guide tube at the control body.
Claim 4
Dependent Claim
36 words
The ureteral catheter device according to claim 1 in which said elongated member is a tube having a rounded forward end, the forward end portion of the member being more flexible than the remaining portion thereof.
Claim 5
Dependent Claim
31 words
The ureteral catheter device according to claim 1 in which said guide tube has a discharge opening provided in the side wall thereof in the neighborhood of the forward end thereof.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |