U.S. patent number 3,780,736 [Application Number 05/299,357] was granted by the patent office on 1973-12-25 for surgical valve assembly for urinary bladder irrigation and drainage.
Invention is credited to Allen S. Chen.
United States Patent |
3,780,736 |
Chen |
December 25, 1973 |
SURGICAL VALVE ASSEMBLY FOR URINARY BLADDER IRRIGATION AND
DRAINAGE
Abstract
An arrangement for irrigating a patient's bladder following
prostate or bladder surgery which includes a four-position valve
having four ports, the valve core being rotatable for
interconnecting any two of the four ports so that the bladder may
be irrigated with fluid by means of a compressible bulb or syringe
connected to one of the ports and the bladder may also be
conventionally drained into a bedside urinary bag without
physically disconnecting the valve from either the urinary
catheter, the source of irrigating fluid, the bulb or syringe, or
the urinary drainage bag.
Inventors: |
Chen; Allen S. (Belleville,
MI) |
Family
ID: |
23154431 |
Appl.
No.: |
05/299,357 |
Filed: |
October 20, 1972 |
Current U.S.
Class: |
604/32; 604/37;
137/625.47 |
Current CPC
Class: |
A61M
3/02 (20130101); A61M 2210/1085 (20130101); Y10T
137/86871 (20150401) |
Current International
Class: |
A61M
3/00 (20060101); A61M 3/02 (20060101); A61m
001/00 () |
Field of
Search: |
;128/230,231,227,232,275,276,349,224,2.5D ;137/625.47,625.22,625.23
;251/304 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Kamm; William E.
Assistant Examiner: Yasko; J.
Claims
I claim:
1. In a uninary catheter arrangement for irrigating the bladder in
post-operative prostate or bladder surgery the combination
comprising, a valve body having a circular bore and a valve core
rotatably retained in said bore, said body having four generally
perpendicularly related ports therein communicating with said bore,
said valve core having a first peripheral portion in sealed
relation with said bore and having a circumferential extent
substantially only sufficiently large to block any two
circumferentially adjacent ports when rotated to any one of four
positions and sufficiently small to block only the intermediate one
of three circumferentially successively positioned ports in an
intermediate position thereof without blocking the other two of
said three successively positioned ports, said vlave core having a
second peripheral portion in sealed relation with said bore and
positioned diametrically opposite the first portion, said second
portion having a circumferential extent substantially only
sufficient to completely block any one of said ports without
blocking any of the other three ports, said two portions
cooperating to define in said valve core a diametrically extending
passageway and two additional passageways on the same side of the
first-mentioned passageway whose axes are inclined to the axis of
the first passageway at an angle of about 45.degree. a catheter
connected to a first of said ports and adapted to be inserted into
the urinary tract of a patient, a supply of irrigating fluid
connected to a second port circumferentially adjacent the first
port, a urinary drainage bag connected to the third port, said
third port being generally diametrically opposite the second port,
and an expandable-collapsible receptacle connected to a fourth port
diametrically opposite the first port, whereby to enable rotation
of the valve core in the following sequence to irrigate the
bladder: first rotate the valve core to establish communication
between the second and fourth ports to enable a quantity of
irrigating fluid to be drawn into the receptacle; then rotate the
valve core to interconnect the first and fourth ports to
successively discharge the irrigating fluid into the urinary tract
and withdraw the same from the urinary tract back into the
receptacle; then rotate the valve core to interconnect the third
and fourth ports to discharge from the receptacle the irrigated
fluid and the matter withdrawn therewith from the urinary tract and
into the urinary bag; finally rotate the valve core to interconnect
the first and third ports to permit conventional drainage from the
urinary tract into the urinary drainage bag.
2. The combination called for in claim 1 wherein said first portion
has a circumferential extent substantially only sufficient to block
communication between the first and third ports when the valve core
is rotated to establish communication between the second and fourth
port, said first portion blocking only the third port and said
second portion blocking only the second port when the valve core is
rotated to establish communication between the first and fourth
ports, said first portion blocking communication between the first
and second ports when the valve core is rotated to establish
communication between the second and fourth ports when the valve
core is rotated to establish communication between the first and
third ports.
3. The combination called for in claim 2 wherein said receptacle
comprises a compressible plastic bulb.
4. The combination called for in claim 2 wherein said receptacle
comprises a syringe which includes a hollow sleeve connected to the
fourth port and an axially shiftable plunger within said sleeve for
alternately creating substantial pressure and vacuum at said fourth
port.
5. The combination called for in claim 2 wherein the periphery of
the valve core in the plane of said ports is open from the
circumferentially opposite ends of the first portion to the
adjacent one of the opposite ends of the second portion.
6. The combination called for in claim 2 wherein the periphery of
the valve core in the plane of said passageways consists of two
diametrically opposite portions in sealed relation with said bore
which are separated by two open sections defining said passageways
and which extend between the circumferentially adjacent ends of the
two portions sealed with said bore.
7. An arrangement for irrigating a patient's bladder following
prostate or bladder surgery comprising, a valve having a valve body
and a valve core rotatable in said body, said valve body having
four generally perpendicularly related ports thereon and a conduit
connected with each port, one of said conduits comprising a urinary
catheter adapted to be inserted in the patient's urinary tract, the
second conduit being connected to a source of irrigating fluid, the
third conduit being connected to an expandable collapsible
receptacle for drawing fluid into said receptacle from said source
through said valve and for discharging said fluid into said
catheter through said valve, said fourth conduit being connected
with a urinary drainage bag disposed at a level below said valve, a
rotatable valve core in said valve body having passageways therein
which, when the valve core is rotated to predetermined positions,
are adapted to connect any two of said ports while blocking the two
remaining ports, said passageways being arranged so that the valve
core is rotatable in the following sequence: first connecting the
source of irrigating fluid with the receptacle to draw a quantity
of irrigating fluid into the receptacle; then connecting the
receptacle to the catheter to first discharge the fluid from the
receptacle into the patient's urinary tract when the receptacle is
collapsed and to retract the fluid from the urinary tract back into
the receptacle when the latter is expanded; thereafter connecting
the receptacle to the drainage bag to discharge the irrigating
fluid and the matter irrigated from the bladder to the drainage
bag; and finally connecting the catheter to the drainage bag to
permit normal drainage of the bladder, said passageways comprising
a first passageway extending diametrically through the valve core
and two additional passageways angularly inclined to said first
passageway, each of said two additional passageways having one side
thereof in common throughout substantially its entire radial extent
with said first passageway so that, when the valve core is disposed
in any of said positions, all of the passageways therein are in
communication with two of said ports at the radially outer ends
thereof, whereby said three passageways form a single cavity in
said valve core having substantially only three sides in the plane
of said ports (namely, one side comprising one side of said first
passageway and the other two sides each comprising the inclined
side of each of the other two passageways) so that, when any of
said passageways are connected to said drainage bag, the fluid in
each of said passageways drains into the drainage bag.
8. An arrangement as called for in claim 7 wherein the first
conduit extends upwardly from the valve to the source of irrigating
fluid and the second conduit extends downwardly from the valve to
the urinary drainage bag.
Description
The present invention relates to a surgical valve arrangement for
urinary bladder irrigation and drainage.
Following prostate or any other urinary bladder surgery frequency
and systematic bladder irrigation is usually considered an absolute
necessity. Blood clots which form in the urinary tract or the
bladder must be removed periodically and with frequency in order to
arrest bleeding and hemorrhaging. The bladder irrigation procedure
is normally performed every 20 to 30 minutes for a period of about
one to three days. This is a bedside procedure and conventional
practice involves the intermittent connection and disconnection of
a urinary catherer with a syringe or bulb and with a source of
irrigating fluid. After each irrigation procedure the urinary
catheter is connected with a bedside urinary bag to permit
conventional drainage and urination. Since this procedure is
repeated frequently and at the bedside of the patient the ends of
the uninary catherer are by necessity normally placed upon the bed
sheet or other surrounding supporting surface and absolute
sterilization is therefore impossible as a practical matter
Consequently, infection is not an uncommon occurrence in the course
of such procedure.
In addition to the problem caused by lack of proper sterilization,
the manipulation required of the various elements used is very time
consuming. When it is realized that this procedure is performed
perhaps 20 to 50 times a day the problem of sterilization and the
inordinate time consumed is readily apparent.
The present invention has for its object the provision of a
surgical valve designed specifically for use in irrigating the
bladder in a minimum of time and under sterile conditions.
More specifically, the invention contemplates a closed irrigation
circuit, that is, a circuit wherein the catheter, syringe, source
of irrigating fluid and the bedside urinary drainage bag, are
adapted to be connected to a specifically designed valve and remain
connected during the entire period of irrigation and normal
drainage. The valve is adapted to be rotated to various positions
to effect the necessary procedural sequences; namely, establishing
communication between the irrigation fluid and the syringe, then
between the syringe and the urinary catheter, thereafter between
the syringe and urinary drainage bag and finally between the
urinary catheter and the drainage bag.
Furthermore, the valve of this invention is designed so that it is
relatively small in size while the passageways therethrough are
relatively large to permit the passage of large blood clots and any
loose tissue in the urinary tract and bladder which must be cleared
without obstructing flow through the valve.
In the drawings:
Fig. 1 is a somewhat diagrammatic view of the valve of the present
invention connected with a source of irrigating fluid, a urinary
catheter, a compressible bulb and a urinary drainage bag in the
manner contemplated for irrigating a patient's bladder;
Figs. 2, 3, 4 and 5 are sectional views through the valve showing
the various positions thereof for performing the necessary sequence
steps in the irrigation procedure;
Fig. 6 is a fragmentary vertical sectional view of the valve;
and
Fig. 7 shows a surgical syringe connected to one port of the valve
in place of the compressible bulb illustrated in FIG. 1.
In FIG. 1 the valve is generally designated 10 and includes an
outer body 12 having a valve core 14 rotatably retained therein.
Valve body 12 is fashioned with a generally cylindrical bore 16 and
is provided with four ports communicating with the bore; these
ports are designated 18, 20, 22 and 24. Each port includes a short
sleevelike extension. Thus, the extension of port 18 is connected
to a flexible tube 26 at one end which has its other end connected
to a container 28 of irrigating fluid; the extension of port 20 is
connected to one end of a catheter 30, the other end of which is
inserted in the patient's urinary tract or bladder diagrammatically
designated 32; the extension of port 22 is connected to one end of
a flexible tube 34, the other end of which connects to a bedside
urinary drainage bag; and the extension of port 24 is formed with
annular ribs 38 for secure connection to an adaptor sleeve 40
secured to the end of a compressible bulb 42.
Referring now to FIG. 6, valve core 14 has an upper flange 44 which
overlies the flat upper face 46 of valve body 12. Valve core 14 has
a body portion 48 which has a close fit with bore 16. If desired,
bore 16 and body 48 can be formed with a slight taper to insure a
sealed relationship between body 48 and bore 16 when they are
telescopically engaged. The lower end of valve core 14 is formed
with an annular groove 50 adapted to receive a snap ring 52 which
bottoms against the lower flat face 54 of valve body 12 to retain
valve core 14 firmly seated in bore 16.
Referring now to FIGS. 2 through 5, body 48 of valve core 14 is
fashioned with two peripheral portions 56, 58. The portion 56 has a
straight inner side 60 and an arcuate outer surface 62 provided
with vertically extending ribs 64 for sealed engagement with bore
16. It will be observed that the circumferential extent of the
outer peripheral surface 62 is just sufficient to overlap and block
any two of the circumferentially adjacent ports 18,20,22,24. It
will also be observed that when valve core 14 is rotated to the
position shown in FIG. 3 the arcuate outer surface 62 of portion 56
overlies and blocks only one of the ports (port 22 in FIG. 3) and
does not in any way obstruct the two ports adjacent the blocked
port (that is, ports 20 and 24 in FIG. 3). Thus, the straight side
60 of portion 56 defines through valve core 14 a central passageway
66 which extends diametrically through the valve core.
Portion 58 of the valve core 14 is disposed diametrically opposite
the portion 56 and, like portion 56, is provided around its outer
peripheral surface 68 with a pair of vertical ribs 70 for
establishing sealed engagement with bore 16. The body portion 48 of
valve core 14 is also provided with circumferentially extending
ribs 72 adjacent the upper and lower edges thereof which likewise
seal with bore 16. As shown in FIG. 2, the arcuate extent of the
peripheral surface 68 of portion 58 is generally equal to the
arcuate extent of bore 16 between the adjacent side edges of
adjacent ports. For example, as illustrated in FIG. 2, the outer
peripheral surface 68 of portion 58 corresponds in extent generally
to the circumferential extent of bore 16 between the adjacent sides
of ports 18 and 24 without in any way blocking either of these
ports. Portion 58 has radially inwardly extending straight side
edges (designated 74) which intersect as at 76. The line of
intersection 76 is diametrically opposite the center of the
straight side 60 of the portion 56 of valve core 14 and is offset
from the diameter of bore 16 oppositely to the straight side 60 of
portion 56. While the arcuate extent of the peripheral surface 68
of portion 58 is not greater than the circumferential extent of the
bore between adjacent sides of adjacent bores, nevertheless as
shown in FIG. 3 the arcuate surface 68 is of sufficient arcuate
extent to completely overlie and block any one of the four ports.
Thus, while the straight side 60 of portion 56 of valve core 14
defines passageway 66 which extends diametrically through the valve
core, the straight sides 74 of portion 58 define two passageways
78,80 which are oppositely inclined at an angle of about 45.degree.
to the axis of passageway 60 and which communicate therewith. It
will be observed that one side of passageway 78 is defined by the
straight side 74 of portion 58 while the opposite side thereof is
open to passageway 66. Likewise, one side of passageway 80 is
defined by other straight side 74 of portion 58 and the opposite
side of passageway 80 is, likewise, open to passageway 66. Thus,
passageways 66,78,80 define within valve core 14 a single cavity
having a straight side 60 at one sid of the valve body 48 and two
short perpendicularly related sides 74 at the opposite side of body
48. This arrangement enables the passageways within the valve
member to be of maximum size in relation to the diameter of the
valve body 12 and the diameter of the various ports therein. As an
example, successful results have been obtained with the valve
structure disclosed when the arcuate surface 62 of portion 56 has
an extent of about 130.degree. to 140.degree. and the arcuate
extent of the peripheral surface 68 of portion 58 is about
40.degree. to 50.degree.. Thus the body portion 48 of valve core 14
in the plane of ports 18,20,22,24 is in open communication with the
ports around approximately onehalf of its circumferential extent.
This is considered one of the important features of the present
invention since it allows the passageways through the valve to
accommodate relative large blood clots and any body tissue that
must flow through the valve.
In operation valve core 14 is initially positioned as shown in FIG.
2 to permit selection of the proper relative position of valve core
14; it is conventionally provided with a handle 82 on the top face
thereof, one end of which is shaped as a pointer for registering
with numerals located on the top face 46 of valve body 12 to
designate the proper location and the proper sequence of valve
rotation to effect a bladder irrigation procedure. In the position
shown in FIG. 2 the pointer end of handle 82 registers with numeral
1 and internally port 18 is connected with port 24; thus, bulb 42
can be squeezed and then released to draw a quantity of irrigating
fluid into bulb 42. Thereafter the valve core is rotated in a
clockwise direction to position 2 illustrated in FIG. 3 where the
portion 58 of valve core 14 blocks port 18 and communication is
established between port 24 and port 20 so that, when bulb 42 is
squeezed, the irrigating fluid is forced through the catheter 30
through the urinary tract and bladder 32. After bulb 42 is
compressed and released several times the bladder is irrigated and
the fluid along with blood clots and tissue is drawn back into bulb
42. Thereafter valve core 14 is preferably rotated in a
counterclockwise direction to position 3 which is illustrated in
FIG. 4. In this position the portion 56 of valve core 14 blocks
port 18 and 20 and communication is established between ports 24
and 22. Now, when bulb 42 is squeezed, the fluid, blood clots and
tissue irrigated from the bladder are discharged into the urinary
drainage bag 36.
After the above procedure is repeated several times the irrigating
fluid being discharged into bag 36 is clear and there is no need
for continued irrigation for a short interval of time. Accordingly,
valve core 14 is rotated to the position shown in FIG. 4 to permit
the bladder to drain in a conventional manner into the urinary bag
36.
Under some circumstances unusually large blood clots are formed in
the bladder and the suction capabilities of the plastic bulb 42 ar
not sufficient to discharge these blood clots from the bladder. In
this event bulb 42 is removed from adaptor 40 and a a conventional
medical syringe 84 is connected to the extension or port 24 as
illustrated in FIG. 7. Syringe 84 comprises an outer cylindrical
sleeve 86 having an axial extension 88 adapted to be connected in
sealed relation with adaptor 40 and an internal plunger 90 which is
axially slideable within sleeve 86 to alternately produce a
pressure and vacuum at port 24 which normally exceeds those
obtainable with a plastic bulb such as illustrated at 42.
Thus it will be seen that the valve arrangement of the present
invention not only provides a completely closed circuit at all
times which eliminates the necessity for disconnecting the catherer
between successive irrigation steps and, thus, avoids the problem
of sterility, but also reduces considerably the time required for
actually completing the irrigation procedure. In addition, the
valve is constructed so that the passageways therethrough are
relatively large and can accommodate any blood clots or tissue
which are required to be flushed from the bladder. The larger
passageways in the valve core facilitate sterilization in the event
that it is constructed for repeated use. On the other hand, the
entire valve assembly can be molded from plastic, if desired, and
will be sufficiently low in cost so that it can be discarded after
being used just once.
A further feature of the present valve, and more specifically to
the passageway arrangement in the valve core, resides in the fact
that all three passageways simply comprise a single relatively
large cavity. With this arrangement, when any of the passageways
are connected to port 22 which extends downwardly to drainage bag
36, all of the fluid in the cavity freely drains into bag 36 so
that, upon subsequent use of the valve, substantially no fluid
remains therein.
* * * * *