Rigid urethral instrument

• US 3,908,637 A
• Filed: 04/22/1974
• Issued: 09/30/1975
• Est. Priority Date: 04/22/1974
• Status: Expired due to Term

• Current Assignee: Louis W. Doroshow
• Original Assignee: Louis W. Doroshow
• Inventors: Doroshow, Louis W.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Opitz, Rick
• Application Number:
  US05/463,190
• Time in Patent Office: 526 Days
• Field of Search: 128/2F,2M,328,341-342,343,348-350,DIG.9,DIG.16,20,347,356,345 46/1E,6 273/95R,95C
• US Class Current: 600/573
• CPC Class Codes: A61B 1/12 with cooling or rinsing arrangements
• CPC Class Codes: A61B 1/307 for the urinary organs, e.g. urethroscopes, cystoscopes
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

A rigid urethral instrument for introduction into the bladder through the urethra, and for carrying out the functions of a urethral sound and a urethral catheter. The major portion of the instrument is substantially linear, with the leading, or proximal end being curved and terminating in a blunt dilating nose. A substantially linear longitudinal bore extends through the major portion of the instrument and serves to carry fluids between the distal and the proximal ends thereof. The longitudinal bore emerges from the proximal surface of the instrument in a region near the base of the curved portion. In one embodiment of the instrument, the bore emerges from the distal surface near the most distal end thereof. In another embodiment, the bore emerges from the distal surface more toward the proximal end, uniting with an external tap for facilitating irrigation and medication of the bladder. In still another embodiment of the urethral instrument, provision is made at the most proximal end for the attachment of a standard dilating filiform.

Claims

1. A surgical instrument which combines the functions of a urethral sound and a urethral catheter, the instrument comprising:

an elongated cylindrical substantially linear main body portion;

a curved dilating nose portion continuous with and extending from one end of said main body portion, said dilating nose portion and said main body portion being rigid and sharing a common plane;

a handle portion contInuous with and extending from the opposite end of said main body portion;

a substantially linear passageway through said main body portion and extending substantially from said dilating nose portion to said handle portion;

wherein one end of said passageway extends through the base of the dilating nose portion and emerges from said instrument on the convex side of said dilating nose portion, and wherein the other end emerges in the region of said handle portion.

2. The instrument of claim 1, wherein said handle portion is flat.

3. The instrument of claim 2, wherein the flat handle portion lies in a plane which is perpendicular to said common plane.

4. The instrument of claim 1, wherein said passageway is substantially coaxial with said cylindrical main body portion.

5. The instrument of claim 1, wherein said dilating nose portion is tapered from its juncture with said main body portion, and terminates in a blunt dilating nose.

6. The instrument of claim 1, and further comprising a flexible filiform continuous with and extending from the end of said dilating nose portion remote from said main body portion.

7. The instrument of claim 1, and further comprising tap means in the region of said handle portion for establishing fluid communication out of said instrument from said passageway.

8. The instrument of claim 7, wherein said tap means comprises a nipple threaded into said main body portion;

said nipple having a passageway therethrough which establishes said fluid communication.

9. The instrument of claim 7, and further comprising injection means for introducing a fluid into said tap means, through said passageway, and out of said instrument at the juncture of said main body portion and said dilating nose portion.

10. The instrument of claim 9, wherein said injection means is a syringe.

11. The instrument of claim 10, and further comprising:

flexible tubing for developing a fluid path between said syringe and said tap means.

12. The instrument of claim 1, wherein said passageway terminates in a blind end in the region of said handle portion;

and further comprising tap means for establishing fluid communication out of said instrument from said passageway.

13. A combined urethral sound and urethral catheter, comprising:

an elongated right cylindrical main body portion;

a smooth nose portion continuous with and extending from one end of said main body portion, said nose portion being curved and mating with said main body portion at a base portion, said nose portion and said main body portion each being rigid;

a handle portion continuous with and extending from the opposite end of said main body portion; and

a passageway extending through said main body portion, one end of said passageway extending through the base of said nose portion and emerging from said instrument on the convex side of said nose portion and the other end of said passageway emerging from said instrument in the region of said handle portion.