U.S. patent number 3,854,483 [Application Number 05/404,388] was granted by the patent office on 1974-12-17 for urethral introduction catheter.
Invention is credited to Jerry G. Powers.
United States Patent |
3,854,483 |
Powers |
December 17, 1974 |
URETHRAL INTRODUCTION CATHETER
Abstract
A urethral introduction catheter comprising an elongated
flexible catheter fixed at its proximal end to a connector and
having a cap removably mounted on the drain spout end thereof. The
proximal end of the catheter slidably extends through an introducer
having a predetermined quantity of water-soluble lubricant provided
therein. The introducer is provided with an end portion through
which the catheter passes. A flexible sheath is secured to and
extends between the connector and introducer to maintain the
catheter in a sterile condition. A cap is provided for sealing the
introducer prior to use. The method of using the device is also
disclosed.
Inventors: |
Powers; Jerry G. (Omaha,
NB) |
Family
ID: |
23599396 |
Appl.
No.: |
05/404,388 |
Filed: |
October 9, 1973 |
Current U.S.
Class: |
604/172; 206/364;
206/210 |
Current CPC
Class: |
A61M
25/0111 (20130101); A61M 2025/0062 (20130101) |
Current International
Class: |
A61M
25/01 (20060101); A61m 025/00 () |
Field of
Search: |
;128/349R,349B,349BV,260,261,239,350,351 ;206/63.2,364,210 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Truluck; Dalton L.
Attorney, Agent or Firm: Zarley, McKee, Thomte &
Voorhees
Claims
I claim:
1. A urethral introduction catheter comprising,
an elongated flexible catheter having distal and proximal ends,
a connector secured to said catheter adjacent the proximal end
thereof,
said catheter having a drain spout portion extending from said
connector,
an introducer having a catheter introducer end portion extending
therefrom,
a sterile lubricant in said introducer,
the distal end of said catheter being movably received by said
introducer and slidably received by said introducer end portion so
that the sterile lubricant is pushed from said introducer into the
patient's urethra as the catheter is inserted into the patient's
urethra,
and a flexible sheath secured at its proximal end to said connector
and secured at its distal end to said introducer.
2. The apparatus of claim 1 wherein a first cap means is removably
mounted on said drain spout portion.
3. The apparatus of claim 1 wherein a second cap means is removably
mounted on said introducer end portion.
4. The method of catheterizing a patient comprising the steps
of:
providing an introducer having a passageway formed therein
containing a sterile lubricant normally stored therein, said
introducer having an end portion adapted for insertion into the
patient's urethra, said introducer having an opposite end which is
adapted to receive a catheter tube, the relationship of the
catheter tube and said introducer passageway being such that the
catheter tube will eject the lubricant from said passageway as said
catheter tube is moved therethrough,
inserting said introducer end portion into the patient's
urethra,
moving the catheter tube through said passageway so that the
sterile lubricant is ejected from said introducer into the
patient's urethra as the catheter tube is inserted therein,
said catheter tube pushing said lubricant from said introducer
simultaneously with the insertion of the catheter tube into the
urethra.
5. A urethral introduction catheter comprising,
an elongated flexible catheter tube having distal and proximal
ends,
a connector secured to said catheter tube adjacent the proximal end
thereof,
said catheter tube having a drain spout portion extending from said
connector,
said catheter tube having at least one opening formed therein
adjacent its distal end,
an introducer having a bore extending therethrough, said introducer
including an end portion, said bore communicating with said end
portion,
the distal end of said catheter tube being slidably received by
said bore,
a flexible sheath secured at its proximal end to said connector and
secured at its distal end to said introducer,
a sterile lubricant positioned in said bore between the distal end
of said catheter tube and said introducer end portion,
the relationship of said bore and said catheter tube being such
that said catheter tube will push said lubricant from said bore
into the patient's urethra as the catheter tube is slidably
extended through said bore.
6. The apparatus of claim 5 wherein said catheter has an outside
diameter substantially equal to the inside diameter of said bore to
prevent said lubricant from entering said opening in said
catheter.
7. The apparatus of claim 5 wherein said lubricant comprises a
water-soluble lubricant.
Description
BACKGROUND OF THE INVENTION
This invention relates to a catheter and more particularly to a
urethral introduction catheter wherein lubricant is moved through
the urethra ahead of the catheter. Conventional catheters can
produce urethral trauma and frequently subject the patient to pain
and discomfort. Additionally, the conventional catheters are
difficult to maintain in a sterile condition thereby resulting in
patient infections. Further, the conventional catheters are
difficult to use and require considerable time to use.
Therefore, it is a principal object of the invention to provide an
improved catheterization.
A further object of the invention is to provide a urethral
introduction catheter.
A further object of the invention is to provide a urethral
introduction catheter wherein lubricant is moved through the
urethra prior to the catheter tube.
A further object of the invention is to provide a urethral
introduction catheter including means for maintaining the sterile
condition thereof.
A further object of the invention is to provide a urethral
introduction catheter which eliminates the need for a catheter
tray.
A further object of the invention is to provide a urethral
introduction catheter which eliminates the need for sterile gloves
or sterile field.
A further object of the invention is to provide a urethral
introduction catheter which reduces urethra trauma.
A further object of the invention is to provide a urethral
introduction catheter which reduces the possibility of the
introduction of foreign pathogens into the bladder.
A further object of the invention is to provide a urethral
introduction catheter which is simple to use and which saves
time.
A further object of the invention is to provide a urethral
introduction catheter which is economical of manufacture and
refined in appearance.
These and other objects will be apparent to those skilled in the
art.
BRIEF DESCRIPTION OF THE DRAWINGS
This invention consists in the construction, arrangements and
combination of the various parts of the device, whereby the objects
contemplated are attained as hereinafter more fully set forth,
specifically pointed out in the claims, and illustrated in the
accompanying drawings, in which:
FIG. 1 is a perspective view of the urethral introduction catheter
of this invention:
FIG. 2 is a sectional view of the catheter seen along lines 2--2 of
FIG. 1:
FIG. 3 is a sectional view seen on lines 2--2 of FIG. 2; and
FIG. 4 is a side elevational view of the catheter illustrating the
catheter tube having been extended through the introducer.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The numeral 10 refers generally to the catheter device having a
proximal end 12 and a proximal end 14. A connector 16 is provided
at the proximal end of the device and has one end of the catheter
18 secured thereto and extending outwardly therefrom. The numeral
20 refers to a cap which is removably mounted on the proximal end
of the drain spout portion 22 of the catheter 18.
The other end of the catheter 18 is slidably mounted in a bore 24
of a tube 26 which is secured to the introducer 28. Catheter 18 is
provided with suitable openings 29 at its proximal end. Tube 26
extends outwardly from the proximal end of the introducer 28 to
define an introducer end portion 30. The numeral 32 refers to a cap
which is removably mounted on the introducer end portion 30 as seen
in the drawings.
A flexible sheath 34 is secured at its proximal end to the
connection 16 by heat sealing or the like and is secured at its
proximal end to the introducer 28 by heat sealing or the like. As
seen in the drawings, when the sheath 34 is in its extended
condition, the proximal end of the catheter 18 extends into the
proximal end of the introducer 28. The numeral 36 refers to
approximately 0.5 cc water-soluble lubricant which is positioned in
the bore 24 ahead of the proximal end of the tube 18. Preferably,
the catheter 18 is constructed of a polyvinyl chloride or rubber
material while the connector 16 is comprised of a polypropylene
material. The sheath 34 is preferably constructed of a polyethylene
material while the introducer is preferably constructed of a
propylene material.
The method of using the catheter is as follows. The catheter device
would be previously sterilized and would be enclosed in a sterile
paper package or the like. The device 10 is removed from the
package and the patient is prepared for the procedure. The urethral
meatus is cleaned and the protective cap 32 is removed from the
introducer end portion 30. The introducer end portion 30 is then
inserted approximately 3/8 inch into the urethra. The nurse then
holds the introducer 28 and the genitilia and grasps the catheter
18 through the polyethylene sheath 34. The catheter 18 is then
gently slidably moved outwardly from the introducer 28 into the
urethra. When the catheter has been inserted to a depth of
approximately 9 inches (male) or approximately 11/2 inches (female)
the drain cap 20 is removed from the spout portion 22 and the
specimen is collected. It can be seen that the water-soluble
lubricant is pushed into the urethra by the catheter 18 so as to
lubricate the urethra to assist the insertion of the catheter.
The water-soluble lubricant substantially reduces urethral trauma
and greatly decreases the pain experienced by the patient. Further,
the catheter of this invention is maintained in a sterile condition
and substantially reduces patient infections. The catheter may be
slidably extended into the urethra without the nurse coming into
direct contact with the catheter which eliminates the need for
sterile gloves or a catherization tray.
Thus it can be seen that a unique catheter has been provided and
which accomplishes at least all of its stated objectives.
* * * * *