Urethral anesthetic devices

• US 4,432,758 A
• Filed: 08/30/1982
• Issued: 02/21/1984
• Est. Priority Date: 08/30/1982
• Status: Expired due to Fees

• Current Assignee: Aaron N. Finegold
• Original Assignee: Aaron N. Finegold
• Inventors: Finegold, Aaron N.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US06/412,985
• Time in Patent Office: 540 Days
• Field of Search: 604/104, 604/117, 604/93, 604/48
• US Class Current: 604/104
• CPC Class Codes: A61M 19/00 Local anaesthesia syringes therefor A61M5/00; Hypothermia A61M5/42 takes precedence; cooling blood in a bypass of the arterial system A61M1/36
• CPC Class Codes: A61M 2210/1433 Uterus
• CPC Class Codes: A61M 25/0021 characterised by the form of the tubing A61M25/0054 takes precedence

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 The barrel is adapted to be inserted into the entire length of a patient'"'"'s urethra and is then withdrawn while simultaneously applying an anesthetic through the openings and maintaining the obstructor against the external orifice of the urethra.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.

Claims

1. 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.

2. 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.

3. 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.

4. The instrument of claim 1 wherein said syringe body and said barrel are formed as a unitary plastic structure.

5. The instrument of claim 1 including an anesthetic contained within said syringe body.

6. The instrument of claim 5 wherein said anesthetic is a lidocaine hydrochloride solution.

7. The instrument of claim 5 wherein said anesthetic is a lidocaine hydrochloride jelly.