Urethral anesthetic devices

• US 4,460,360 A
• Filed: 08/24/1983
• Issued: 07/17/1984
• 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:
  US06/525,989
• Time in Patent Office: 328 Days
• Field of Search: 604/288, 604/285, 604/239
• US Class Current: 604/288
• 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 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00

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 The barrel is adapted to be inserted into the entire length of a patient'"'"'s urethra and is then withdrawn while simultaneously applying an anesthetic through the openings and maintaining the obstructor against the external orifice of the urethra.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

(a) a meatal obstructor with one substantially flat surface;

(b) an elongated solid anesthetic suppository attached to and extending outwardly from said flat surface of said meatal obstructor, said suppository formed in the shape of an anatomical female infrapubic curve and said suppository having a length substantially equal to the length of the patient'"'"'s urethra; and

(c) a handle attached to another surface of said obstructor opposite said flat surface and extending outwardly therefrom, whereby said suppository may be inserted into the patient'"'"'s urethra and thereby anesthetize the entire urethra as said suppository is dissolved by the patient'"'"'s body heat.

2. The instrument of claim 1 wherein said suppository is an anesthetic solution in a base that dissolves at the patient'"'"'s body temperature.

3. The instrument of claim 2 wherein said anesthetic solution is lidocaine hydrochloride.

4. The instrument of claim 1 wherein said meatal obstructor is a thin disc with a pair of opposed flat surfaces and wherein said suppository is attached to one of said opposed flat surfaces and said handle is attached to the other of said opposed flat surfaces.