US4432758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethral anesthetic devices
Assignee: Individual
•
Filing: 1982-08-30
•
Granted: 1984-02-21
•
Expires: 2002-08-30
Abstract
Abstract Instruments for anesthetizing the urethra of male and female patients are disclosed. The male instrument includes a standard syringe with an elongated hollow barrel mounted on the syringe. The barrel is formed in the shape of a Van Buren curve and includes one or more openings near its tip. The male instrument also includes a metal obstructor slidably mounted around the barrel. The barrel is adapted to be inserted into the entire length of a patient's urethra and is then withdrawn while simultaneously applying an anesthetic through the openings and maintaining the obstructor against the external orifice of the urethra. The female instrument includes a solid anesthetic suppository attached to one surface of a metal obstructor and a handle attached to another surface of the obstructor. The suppository is formed in the shape of an anatomical female infrapubic curve. The suppository is inserted into the urethra and anesthetizes the entire urethra as the suppository dissolves.
Inventors
- 👤 Aaron N. Finegold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M19/00; A61M2210/00; A61M2210/14; A61M2210/1433
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
177 words
A urethral anesthetic application instrument comprising: (a) a hollow syringe body including a first end which is open to the atmosphere and a second end which terminates in a coupler in fluid communication with the interior of said syringe body; (b) a slidable plunger assembly disposed within said syringe body and extending through said first end; (c) an elongated hollow barrel mounted to said coupler, said barrel including a passageway in fluid communication with said coupler and one or more openings adjacent the end of said barrel opposite said coupler and in communication with said passageway, said barrel formed in the shape of a Van Buren curve; and (d) a meatal obstructor slidably mounted around said barrel, whereby said barrel may be inserted into the entire length of a patient's urethra and then said barrel may be withdrawn while simultaneously applying an anesthetic to the urethra through said openings, and wherein said obstructor may be positioned against the external orifice of the urethra while said barrel is withdrawn, thereby preventing said anesthetic from escaping from the urethra.
Claim 2
Dependent Claim
177 words
A urethral anesthetic application instrument comprising: (a) a hollow syringe body including a first end which is open to the atmosphere and a second end which terminates in a coupler in fluid communication with the interior of said syringe body; (b) a slidable plunger assembly disposed within said syringe body and extending through said first end; (c) an elongated hollow barrel mounted to said coupler, said barrel including a passageway in fluid communication with said coupler and one or more openings adjacent the end of said barrel opposite said coupler and in communication with said passageway, said barrel formed in the shape of a Van Buren curve; and (d) a meatal obstructor slidably mounted around said barrel, whereby said barrel may be inserted into the entire length of a patient's urethra and then said barrel may be withdrawn while simultaneously applying an anesthetic to the urethra through said openings, and wherein said obstructor may be positioned against the external orifice of the urethra while said barrel is withdrawn, thereby preventing said anesthetic from escaping from the urethra.
Claim 3
Dependent Claim
32 words
The instrument of claim 1 wherein the end of said barrel opposite said coupler is solid and terminates in a rounded tip portion which facilitates insertion of said barrel into the urethra.
Claim 4
Dependent Claim
41 words
The instrument of claim 1 wherein said meatal obstructor is cone-shaped, with the base of said cone-shaped obstructor directed toward said second end of said syringe body and said barrel passing through said obstructor along the axis of said cone-shaped obstructor.
Claim 5
Dependent Claim
19 words
The instrument of claim 1 wherein said syringe body and said barrel are formed as a unitary plastic structure.
Claim 6
Dependent Claim
13 words
The instrument of claim 1 including an anesthetic contained within said syringe body.
Claim 7
Dependent Claim
13 words
The instrument of claim 5 wherein said anesthetic is a lidocaine hydrochloride solution.
Claim 8
Dependent Claim
13 words
The instrument of claim 5 wherein said anesthetic is a lidocaine hydrochloride jelly.
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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) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |