CA1180626A - System for aseptically draining a urine bag - Google Patents
System for aseptically draining a urine bagInfo
- Publication number
- CA1180626A CA1180626A CA000397503A CA397503A CA1180626A CA 1180626 A CA1180626 A CA 1180626A CA 000397503 A CA000397503 A CA 000397503A CA 397503 A CA397503 A CA 397503A CA 1180626 A CA1180626 A CA 1180626A
- Authority
- CA
- Canada
- Prior art keywords
- bag
- spout
- valve
- housing means
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
ABSTRACT
SYSTEM FOR ASEPTICALLY DRAINING A URINE BAG
A system for aseptically removing urine from a primary drainage bag attached to a patient by conventional catheter means which includes a separate sterile disposable transfer bag. Rigid laterally extending spout interconnects the two bags when drainage is desired. The primary drainage bag is formed in the preferred embodiment with an outlet provided with self-closing flaps and slit valves which may be penetrated by the spout mounted on the transfer bag. Locking rib and groove means secure the spout in the outlet and a removable cap covers the outlet when the transfer bag is not attached. In a second form, the spout and valve means are on the primary drainage bag and transfer bag respectively.
SYSTEM FOR ASEPTICALLY DRAINING A URINE BAG
A system for aseptically removing urine from a primary drainage bag attached to a patient by conventional catheter means which includes a separate sterile disposable transfer bag. Rigid laterally extending spout interconnects the two bags when drainage is desired. The primary drainage bag is formed in the preferred embodiment with an outlet provided with self-closing flaps and slit valves which may be penetrated by the spout mounted on the transfer bag. Locking rib and groove means secure the spout in the outlet and a removable cap covers the outlet when the transfer bag is not attached. In a second form, the spout and valve means are on the primary drainage bag and transfer bag respectively.
Description
This invention relates generally to closed system urinary drainage bags of the -type conventionally used in hospitals and health care facilities when it is necessary to collect urine from a patient over an extended period of time. Such bags are routinely used by post-operative patients as well as those with urological disorders Eor collection, measuring and frequent testing o.E the urinary output. In use, the patient is first cathe-teri2ed and the catheter is then connected to the drainage bag -through a len~th of tubing.
The bag is normally supported below the pa-tient's level, either from the bed rail or other support, and the urine drains by gravity from the patient through the catheter, the tubing, and then finally into the bag. Almost all such bags are provided with drain ports through which measured quantities of urine may be removed from time to time for various testing procedures. More particularly, the instant invention herein relates to a new system for aseptically draining urine from the primary urine bag into a separate sterile disposable transfer bag.
A typical urine drainage bag known in -the prior art is shown in Charles E. Meisch et al, United States Patent 4,312,352, issued January 26, 1982.
One oE the drawbacks with prior art bags is the possibility of contamination and infection to the patient when the bags are opened for removal of all or part of the contents thereof. During such opening, air is permitted to enter into the outlet spout and bacteria can then migrate up the spout into the bag and finally up through the connect-ing tubing and the catheter into the bladder thereby causing infection. ~dditionally, -there is the problem of contamina-tion of hospital personnel due to splattering of urine during the collection process.
The principal advantage of the present sys-tem over the known prior art is -the provision for the first time of as~ptically draining urine from the principal bag into an auxiliary drainage bag which is s-terile and disposable, thereby obviating problems of infection.
It is a primary object of the present invention to provide a simple, saEe and sterile transfer system or removing urine from a primary drainage bag into a secondary transfer bag.
The present invention provides a system for asep-tically removing urine from a drainage bag connected to a catheterized patient, the system comprises an outlet on -the drainage bag adjacent the bo-ttom thereof, normally closed valve means operatively connected to the outlet means pre~
venting flow through the outlet, a transfer bag for receiving urine removed from the drainage bag, means on the transfer bag which cooperate wi-th the outlet, the means adapted to open the valve means -to initiate rem~val of urine from the drainage bag.
The drainage bag may include a housing means secured thereto and around the outlet and the transfer bag includes means adapted to mate with the housing means, and preferably the valve means is located within the said opening and the transfer bag means cooperative with the outlet is a spout mounted on the transfer bag.
The invention further provides a system for asep-tically removing urine from a drainage bag connected to acatheterized patient, the sys-tem comprises an outlet on the drainage bag adjacent the bot-tom thereof, housing means secured to the bag around the outlet, normally closed valve means within the housing means preventing flow through the housing, a transEer bag for receiving urine removed from the drainage bag, rigid spout means on the transEer bag and projecting outwardly therefrom, the spout means adapted to enter into the housing means and to open the valve means to initiate removal of urine from the drainage bag.
The invention will be more readily apparent from the following detailed description taken in conjunction with the drawings in which an exemplary embodiment of the invention is shown.
Figure 1 is a perspective showing of a typical prior art urine drainage bag showing removal of the contents into a receptable.
Figure 2 is a similar perspective view showing an embodi-ment of the present invention with the two bags in-terconnected.
Figure 3 is a vertical section through the primary drainage bag and showing the interconnection of the transfer bag spout thereto.
Figure 5 is a sectional view similar to Figure 3 but prior -to full engagement of the spout.
Figure 5 is a sectional view of the lower portion of the primary urine drainage bag showing the outlet and valve assembly closed by the cap.
Figure 6 is a sectional view taken along the lines 6-6 of Figure 5 and specifically showing the slit valve face.
Referring now to the drawings, a conventional urine drainage bag is shown in Figure 1 a-t 10 which bag is conventionally formed by peripherally heat sealing or otherwise securing a pair of flat vinyl or polyvinyl chloride sheets together. The bag is provlded with an inle-t opening adjacent the top for reception of a drip chamber 11 which may alsa have integral therewith a bacterial alr Eilter. The drip chamber ls connected to a -tube 12 which in turn is connected at its end, not shown, to a conventional Foley catheter or the like which is in turn inserted in the urethral canal oE -the patient.
sag 10 is also provided with an outlet hose or drainage tube 13 which may be permanen-tly secured to the bag by heat sealing a flange member l4 thereon. A spring meta] pinch clamp 15 is provided on the tubing 13 for the purpose of opening and closing the passage through the tube. As shown in Figure 1, a receptacle R may be placed beneath the end of tube 13 and will receive urine U from the tube and the bag 10 when the pinch clamp 15 is open as shown. When the clamp is in the closed position, the free end of tube 13 is conventionally received in a housing which is sealed to the face of the bag. This is not part of the instant invention bu-t may be noted in the copending application noted above.
The system for aseptically draining urine that embodies the present invention is shown in Figure 2 and includes a bag 10 virtually -the same as the bag in the prior art also utili~ing the drip chamber 11 and the tube 12. Here it will be seen however that the outlet port and flange assembly 13, 14, and 15, has been replaced by a specific outlet construction shown in Figures 3-6. A sterile disposable transfer bag 20 is provided to receive urine from the primary drainage bag 10. The transfer bag may be formed in a similar manner and from materials similar to that of the principal bag but is totally closed at the top and has provided adjacent -the upper wall thereof an inlet open-ing provided with an outwardly extending spout 21. The spout may be secured to the bag 20 by welding of a flange 22 all as is common in the art. The distal end of the spout is straight as shown at 23 and spaced rearwardly Erom the tip is a wide shoulder 24 which serves as an abutment as later described. There is a gradual curve 25 extendin~ Erom the spout shaft to the shoulder.
This curved surface seats against the outer face of a slit valve as will appear further herein. An annular groove 26 circum~
scribes the spout wide portion rearwardly of shoulder 24 and acts in conjunction wi-th a circular rib on the main bag outlet to lock the spout therein. A circular abutment flange 27 at the rear of the wide portion further limits penetration of the spout into the outlet as shown in Figure 1. An axial bore 28 extends throughout the spout for conveying the urine between the two bags.
Primary urine drainage bag 10 is formed with a circular opening 30 adjacent the lower end of its outer face. A capped outlet assembly 31 is attached directly over this opening and consists of a plastic housing 32 havin~ a peripheral mounting flange 33 at one end which may be chemically or thermally welded to the bag face. The opposite end of the housin~ 32 has an annular lip 34 formed thereon Oll the e~terior barrel. Interiorly of the housing and adjacent the mounting flange 33, a flap valve abutmen-t 35 is formed.
A thin circular flap valve 36 engages against tle abutment 35 and is basically a nearly full circle cut into a fla-t circular disc so that it can be displaced inwardly as shown in E'igure 3. A pair of identical slit valves ~0 and 41 are mounted internally of the housing barrel by a mounting collar 42. This collar has peripheral flanges ~3 and 44 which engage behind inwardly turned flanges 45 and 46 on the sli-t valve assemblies.
The face oE the sli~ valves 47 are slit as at 48 in Figure 6 to provide a plurality of fingers. While three such fingers are shown, it is to be understood that this is merely exemplary and any number could be employed. Since the Eace ~7 is Eormed of an elastomeric material, the slits ~ will seal when the valve is undisturbed as in Figures 5 and 6 and will block fluid passage.
Note that slit valve 40 seals face to ~ace against the flap valve 36 as in Figure 4.
A cover assembly for the outlet is provided at 50 and has an opening 51 into which spout 21 may be inserted. The cover assembly has an internal annular recess receiving the annular lip 34 on the barrel and is re-tained thereon in a snap fit. A cap 52 is tethered to cover assembly 50 by an integrally formed retainer strap 53. A thumb tap 5~ extends opposite the strap for ease in applying and removing the cap.
Cap 52 is annularly grooved as at 55 to cooperate as shown in Figure 5 with ridge 56 formed interiorly of the cover assembly. The ridge also cooperates in the same manner with groove 26 of the spout to ensure a snap fit sealed connection.
It will be understood that cap 52 can be made as a separate piece rather than formed integrally with the cover assembly shown in the preferred embodiment shown.
Operation In use, the primary urine drainage bag is connected to the patient via a Foley catheter in the conventional manner and supported from a hanger or the like at a level below that of the patient. During this procedure and while -the bag is in use, the cap 52 is in place covering -the outle-t as shown in Figure 5. Here the flap valve 36 and slit valves 40 and 41 prevent urine from passing through the outlet. To empty the system without exposing it to the bacteria in the air, cap 52 is removed from the outlet and the outer ace of slit valve ~l is cleaned with a suitable solution. Urine removal into the bag 20 is accomplished by inserting the spout 21 of the se~condclry drainage bag through the two slit valves ~0 and 4:L and displacing flap valve 36 as in Figures 3 and 4. Spout 21 is inserted until it locks into position with abutment Elange 27 engaging the Eace of cover assembly 50 and groove 26 engaging rib 56.
This will then allow transfer of the urine from the primary bag into the secondary bag. Flow will immediately cease upon removal of spout 21 as the slit valves and flap valve will automatically close.
During the transfer process all air replacing urine in the primary drainage bag 10 will pass through the bacterial filter keeping the bag interior free from contamination.
In the alternative, a valved spout could be mounted on the primary bag. The transfer bag would then have a valved opening which would cooperate with the valved spout so that mating of the primary bag spout with the opening in the transfer bag would cause the valve to open, thus effecting drainage of said primary bag.
It must be reco~nized that the above is descriptive of two embodiments for ef~ecting sterile drainage of the contents of a valved drainage bag into a second transfer container without causing the interior oE the drainage bag to become nonsterile.
The specific s-truc-tural features of the two bags can be varied within the scope of the basic concept and the produc-t or its method of use is not limited to the embodiments disclosed above.
The bag is normally supported below the pa-tient's level, either from the bed rail or other support, and the urine drains by gravity from the patient through the catheter, the tubing, and then finally into the bag. Almost all such bags are provided with drain ports through which measured quantities of urine may be removed from time to time for various testing procedures. More particularly, the instant invention herein relates to a new system for aseptically draining urine from the primary urine bag into a separate sterile disposable transfer bag.
A typical urine drainage bag known in -the prior art is shown in Charles E. Meisch et al, United States Patent 4,312,352, issued January 26, 1982.
One oE the drawbacks with prior art bags is the possibility of contamination and infection to the patient when the bags are opened for removal of all or part of the contents thereof. During such opening, air is permitted to enter into the outlet spout and bacteria can then migrate up the spout into the bag and finally up through the connect-ing tubing and the catheter into the bladder thereby causing infection. ~dditionally, -there is the problem of contamina-tion of hospital personnel due to splattering of urine during the collection process.
The principal advantage of the present sys-tem over the known prior art is -the provision for the first time of as~ptically draining urine from the principal bag into an auxiliary drainage bag which is s-terile and disposable, thereby obviating problems of infection.
It is a primary object of the present invention to provide a simple, saEe and sterile transfer system or removing urine from a primary drainage bag into a secondary transfer bag.
The present invention provides a system for asep-tically removing urine from a drainage bag connected to a catheterized patient, the system comprises an outlet on -the drainage bag adjacent the bo-ttom thereof, normally closed valve means operatively connected to the outlet means pre~
venting flow through the outlet, a transfer bag for receiving urine removed from the drainage bag, means on the transfer bag which cooperate wi-th the outlet, the means adapted to open the valve means -to initiate rem~val of urine from the drainage bag.
The drainage bag may include a housing means secured thereto and around the outlet and the transfer bag includes means adapted to mate with the housing means, and preferably the valve means is located within the said opening and the transfer bag means cooperative with the outlet is a spout mounted on the transfer bag.
The invention further provides a system for asep-tically removing urine from a drainage bag connected to acatheterized patient, the sys-tem comprises an outlet on the drainage bag adjacent the bot-tom thereof, housing means secured to the bag around the outlet, normally closed valve means within the housing means preventing flow through the housing, a transEer bag for receiving urine removed from the drainage bag, rigid spout means on the transEer bag and projecting outwardly therefrom, the spout means adapted to enter into the housing means and to open the valve means to initiate removal of urine from the drainage bag.
The invention will be more readily apparent from the following detailed description taken in conjunction with the drawings in which an exemplary embodiment of the invention is shown.
Figure 1 is a perspective showing of a typical prior art urine drainage bag showing removal of the contents into a receptable.
Figure 2 is a similar perspective view showing an embodi-ment of the present invention with the two bags in-terconnected.
Figure 3 is a vertical section through the primary drainage bag and showing the interconnection of the transfer bag spout thereto.
Figure 5 is a sectional view similar to Figure 3 but prior -to full engagement of the spout.
Figure 5 is a sectional view of the lower portion of the primary urine drainage bag showing the outlet and valve assembly closed by the cap.
Figure 6 is a sectional view taken along the lines 6-6 of Figure 5 and specifically showing the slit valve face.
Referring now to the drawings, a conventional urine drainage bag is shown in Figure 1 a-t 10 which bag is conventionally formed by peripherally heat sealing or otherwise securing a pair of flat vinyl or polyvinyl chloride sheets together. The bag is provlded with an inle-t opening adjacent the top for reception of a drip chamber 11 which may alsa have integral therewith a bacterial alr Eilter. The drip chamber ls connected to a -tube 12 which in turn is connected at its end, not shown, to a conventional Foley catheter or the like which is in turn inserted in the urethral canal oE -the patient.
sag 10 is also provided with an outlet hose or drainage tube 13 which may be permanen-tly secured to the bag by heat sealing a flange member l4 thereon. A spring meta] pinch clamp 15 is provided on the tubing 13 for the purpose of opening and closing the passage through the tube. As shown in Figure 1, a receptacle R may be placed beneath the end of tube 13 and will receive urine U from the tube and the bag 10 when the pinch clamp 15 is open as shown. When the clamp is in the closed position, the free end of tube 13 is conventionally received in a housing which is sealed to the face of the bag. This is not part of the instant invention bu-t may be noted in the copending application noted above.
The system for aseptically draining urine that embodies the present invention is shown in Figure 2 and includes a bag 10 virtually -the same as the bag in the prior art also utili~ing the drip chamber 11 and the tube 12. Here it will be seen however that the outlet port and flange assembly 13, 14, and 15, has been replaced by a specific outlet construction shown in Figures 3-6. A sterile disposable transfer bag 20 is provided to receive urine from the primary drainage bag 10. The transfer bag may be formed in a similar manner and from materials similar to that of the principal bag but is totally closed at the top and has provided adjacent -the upper wall thereof an inlet open-ing provided with an outwardly extending spout 21. The spout may be secured to the bag 20 by welding of a flange 22 all as is common in the art. The distal end of the spout is straight as shown at 23 and spaced rearwardly Erom the tip is a wide shoulder 24 which serves as an abutment as later described. There is a gradual curve 25 extendin~ Erom the spout shaft to the shoulder.
This curved surface seats against the outer face of a slit valve as will appear further herein. An annular groove 26 circum~
scribes the spout wide portion rearwardly of shoulder 24 and acts in conjunction wi-th a circular rib on the main bag outlet to lock the spout therein. A circular abutment flange 27 at the rear of the wide portion further limits penetration of the spout into the outlet as shown in Figure 1. An axial bore 28 extends throughout the spout for conveying the urine between the two bags.
Primary urine drainage bag 10 is formed with a circular opening 30 adjacent the lower end of its outer face. A capped outlet assembly 31 is attached directly over this opening and consists of a plastic housing 32 havin~ a peripheral mounting flange 33 at one end which may be chemically or thermally welded to the bag face. The opposite end of the housin~ 32 has an annular lip 34 formed thereon Oll the e~terior barrel. Interiorly of the housing and adjacent the mounting flange 33, a flap valve abutmen-t 35 is formed.
A thin circular flap valve 36 engages against tle abutment 35 and is basically a nearly full circle cut into a fla-t circular disc so that it can be displaced inwardly as shown in E'igure 3. A pair of identical slit valves ~0 and 41 are mounted internally of the housing barrel by a mounting collar 42. This collar has peripheral flanges ~3 and 44 which engage behind inwardly turned flanges 45 and 46 on the sli-t valve assemblies.
The face oE the sli~ valves 47 are slit as at 48 in Figure 6 to provide a plurality of fingers. While three such fingers are shown, it is to be understood that this is merely exemplary and any number could be employed. Since the Eace ~7 is Eormed of an elastomeric material, the slits ~ will seal when the valve is undisturbed as in Figures 5 and 6 and will block fluid passage.
Note that slit valve 40 seals face to ~ace against the flap valve 36 as in Figure 4.
A cover assembly for the outlet is provided at 50 and has an opening 51 into which spout 21 may be inserted. The cover assembly has an internal annular recess receiving the annular lip 34 on the barrel and is re-tained thereon in a snap fit. A cap 52 is tethered to cover assembly 50 by an integrally formed retainer strap 53. A thumb tap 5~ extends opposite the strap for ease in applying and removing the cap.
Cap 52 is annularly grooved as at 55 to cooperate as shown in Figure 5 with ridge 56 formed interiorly of the cover assembly. The ridge also cooperates in the same manner with groove 26 of the spout to ensure a snap fit sealed connection.
It will be understood that cap 52 can be made as a separate piece rather than formed integrally with the cover assembly shown in the preferred embodiment shown.
Operation In use, the primary urine drainage bag is connected to the patient via a Foley catheter in the conventional manner and supported from a hanger or the like at a level below that of the patient. During this procedure and while -the bag is in use, the cap 52 is in place covering -the outle-t as shown in Figure 5. Here the flap valve 36 and slit valves 40 and 41 prevent urine from passing through the outlet. To empty the system without exposing it to the bacteria in the air, cap 52 is removed from the outlet and the outer ace of slit valve ~l is cleaned with a suitable solution. Urine removal into the bag 20 is accomplished by inserting the spout 21 of the se~condclry drainage bag through the two slit valves ~0 and 4:L and displacing flap valve 36 as in Figures 3 and 4. Spout 21 is inserted until it locks into position with abutment Elange 27 engaging the Eace of cover assembly 50 and groove 26 engaging rib 56.
This will then allow transfer of the urine from the primary bag into the secondary bag. Flow will immediately cease upon removal of spout 21 as the slit valves and flap valve will automatically close.
During the transfer process all air replacing urine in the primary drainage bag 10 will pass through the bacterial filter keeping the bag interior free from contamination.
In the alternative, a valved spout could be mounted on the primary bag. The transfer bag would then have a valved opening which would cooperate with the valved spout so that mating of the primary bag spout with the opening in the transfer bag would cause the valve to open, thus effecting drainage of said primary bag.
It must be reco~nized that the above is descriptive of two embodiments for ef~ecting sterile drainage of the contents of a valved drainage bag into a second transfer container without causing the interior oE the drainage bag to become nonsterile.
The specific s-truc-tural features of the two bags can be varied within the scope of the basic concept and the produc-t or its method of use is not limited to the embodiments disclosed above.
Claims (17)
1. A system for aseptically removing urine from a drainage bag connected to a catheterized patient, said system comprising, an outlet on said drainage bag adjacent the bottom thereof, normally closed valve means operatively connected to said outlet means preventing flow through said outlet, a transfer bag for receiving urine removed from said drainage bag, means on said transfer bag which cooperate with said outlet, said means adapted to open said valve means to initiate removal of urine from said drainage bag.
2. A system as defined in claim 1 wherein the drainage bag includes a housing means secured thereto and around said outlet and the transfer bag includes means adapted to mate with said housing means.
3. A system as defined in claim 1 or 2 wherein the valve means is located within the said opening and the transfer bag means cooperative with the outlet is a spout mounted on said transfer bag.
4. A system for aseptically removing urine from a drainage bag connected to a catheterized patient, said system comprising, an outlet on said drainage bag adjacent the bottom thereof, housing means secured to said bag around said outlet, normally closed valve means within said housing means preventing flow through said housing, a transfer bag for receiving urine removed from said drainage bag, rigid spout means on said transfer bag and projecting outwardly therefrom, said spout means adapted to enter into said housing means and to open said valve means to initiate removal of urine from said drainage bag.
5. A system as defined in claim 2 and further including cooperating lock means on said spout means and within said housing means for securing the same in the urine transfer position.
6. A system as defined in claim 5 wherein the lock means comprises an annular ridge formed on one of said spout means and housing means and an annular ridge receiving groove formed on the other, at least said housing means being formed of resilient plastic material.
7. A system as defined in claim 5 wherein the lock means comprises an annular ridge formed on one of said spout and housing means and an annular ridge receiving groove formed on the other, at least said housing means being formed of resilient plastic material.
8. A system as defined in claim 2 wherein said valve means includes a thin resilient wall extending across the interior of said housing means and being centrally slit to form a self-closing slit valve.
9. A system as defined in claim 5 wherein said valve means includes a thin resilient wall extending across the interior of said housing means and being centrally slit to form a self-closing slit valve.
10. A system as defined in claim 8 wherein said valve means includes a second slit valve within the housing means spaced outwardly of said first slit valve.
11. A system as defined in claim 9 wherein said valve means includes a second slit valve within the housing means spaced outwardly of said first slit valve.
12. A system as defined in claim 10 and further including a flap closure within the housing means normally being closed and resting against the inner face of said first mentioned slit valve.
13. A system as defined in claim 11 and further including a flap closure within the housing means normally being closed and resting against the inner face of said first mentioned slit valve.
14. A system as defined in claim 2 and further including removable cap means for sealing the end of said housing means when said transfer bag is not in use.
15. A system as defined in claim 5 and further including removable cap means for sealing the end of said housing means when said transfer bag is not in use.
16. A system as defined in claim 2 wherein said means adapted to mate with said housing means comprise spout means having a limit stop abutment thereon adapted to contact an end face of said housing means.
17. A system as defined in claim 5 wherein said spout means has a limit stop abutment thereon adapted to contact the end face of said housing means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23227281A | 1981-03-10 | 1981-03-10 | |
| US232,272 | 1981-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1180626A true CA1180626A (en) | 1985-01-08 |
Family
ID=22872484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000397503A Expired CA1180626A (en) | 1981-03-10 | 1982-03-03 | System for aseptically draining a urine bag |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1180626A (en) |
-
1982
- 1982-03-03 CA CA000397503A patent/CA1180626A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |