CA1326417C - Liquid reinfusion bag system - Google Patents
Liquid reinfusion bag systemInfo
- Publication number
- CA1326417C CA1326417C CA000584355A CA584355A CA1326417C CA 1326417 C CA1326417 C CA 1326417C CA 000584355 A CA000584355 A CA 000584355A CA 584355 A CA584355 A CA 584355A CA 1326417 C CA1326417 C CA 1326417C
- Authority
- CA
- Canada
- Prior art keywords
- bag
- reinfusion
- portions
- flexible container
- frame members
- 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 - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
- A61M1/602—Mechanical means for preventing flexible containers from collapsing when vacuum is applied inside, e.g. stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
Abstract
LIQUID REINFUSION BAG SYSTEM
ABSTRACT OF THE DISCLOSURE
A liquid reinfusion bag system is provided for collecting blood from a surgical site and/or reinfusing the collected blood into the patient. The system includes a flexible bag having an external frame with locking means to retain the bag in extended position during the time the bag is being filled, the locking means being displaceable to permit the bag to collapse during the reinfusion process.
ABSTRACT OF THE DISCLOSURE
A liquid reinfusion bag system is provided for collecting blood from a surgical site and/or reinfusing the collected blood into the patient. The system includes a flexible bag having an external frame with locking means to retain the bag in extended position during the time the bag is being filled, the locking means being displaceable to permit the bag to collapse during the reinfusion process.
Description
1326~17 Backqround_of the invention The present invention relates to a liquid reinfusion flexible bag sy~tem having an external supporting frame wlth releasable locking elements so as to permlt the bag to be maintained in an opened position while the bag is belng filled or permitted to collapse during reinfusion by releasing the frame locking elements.
It is well known in the prior art to provide flexible bags for collecting blood from a surgical site by applying suction to the bag so as to draw the liquid from the surgical site into the bag. Such devices provide means for retaining the bag in an open position during the filling operation and for collapsing the bag during the reinfusion step. Such a device is disclosed in U.S. Patent 4,500,308, issued February 19, 1985.
The prior art also discloses various means for supporting flexible bags externally such as U.S. Patents 4,393,880;
4,312,353; 4,650,4~8 and 4,501,584. Such devices also include frames for maintaining flexible bagæ in an extended position such as disclosed in U.S. Patent 4,449,969. However, such frames are expensive, difficult to handle and do not provide means for permitting the flexlble bag to collapse when it is being emptied.
SummarY of the invention As embodied and broadly described herein, the inventlon provldes a relnfuslon bag lncludlng a flexlble contalner having a side wall and top and bottom end walls, and lnlet tube in the top end wall, an outlet tube adapted to be connected to a suctlon source ln the top end wall, a reinfuslon tube ln the bottom end wall, a plurallty of relatlvely rlgid frame members disposed around the side wall of the flexlble container and releasable locking means attached to said frame members and extending across the top and bottom end walls for retaining the end walls of the flexible container in an extended position 80 that the container 18 maintained in an open posltlon.
132~17 As embodied and broadly described herein, the invention provides a reinfusion bag having fir~t portions of the bag formed of flexible material, second portions of the bag being formed with relatively rigid material, inlet, outlet and reinfusion ports in said bag, and means releasably engageable with the relatively rigid second portions of said bag for retaining said bag in an extended uncollapsed position so that when said last named means is released and disengaged from said relatively rigid second portions of the bag, the flexible container is readily collapsible.
An object of the present invention is to provide a flexible container with means for locking the container in an extended position wherein the locking elements may be removed from the bag to permit the bag to collapse.
Another object of the present invention is to provide a flexible bag with integrally formed frame members disposed at spaced points around the periphery of the container with locking arms disposed at each end of the bag which may be moved between locked position in engagement with the frame members to retain the bag in an extended position to an unlocked position wherein the bag may collapse.
Other objects of the present invention will become more readily apparent upon consideration of the following detailed speclfication taken in connection with the accompanying drawings wherein, Brief Descri~tion of the Drawinas - Figure 1 is a perspective elevational view of a blood bag lncorporating the locking means according to the present invention;
- Figure 2 is an elevatlonal view of the bag when fllled with liquid with the locking mean~ disengaged from the bag and in disassembled position; and - Figure 3 is a similar view showing the bag being emptied.
','.''~
Detailed DeQcrl~tion of the Invention ~ eferring now more specifically to the drawings wherein like numerals indicate like parts throughout the sevetal views, there is shown at 1 in Fi~. 1 a flexible bag of a generally cylindrical configuration having end walls integrally formed therewith. The bag is provided with an inlet tube 2 which provides a means for withdrawing blood from a surgical site into the bag through a filter 4 on the inner end therof having a 170 micron mesh. ~ second tube 3 is provided at the upper end of tLe bag for connection with a suction source. The inner end of the tube 3 is provided with a restrictor (not shown) which has sufficiently s~all openings therein which only permits air to pass therethrough. The opposite end of the bag is provided with an IV spike or reinfusion tube 5. The bag is also provided with a separate port 13 at the upper end for adding heparin or other substances to the blood within the bag.
There is provided means for locking the bag in a fully extended position and this means includes a plurality of spaced frame members 6 which are formed of a relatively rigid material and which may be integrally formed with the bag or alternatively may be secured at each end portion therof to the flexible bag. At each end thereof the frame members 16 are provided with a pair of crossed locking arms 7 and 71. ~s shown in Fig, 2 the locking arms are connected together by central interengaging slots 11. One of each pair of locking arms 7 and 71 may be provided with finger apertures 12 to facilitate removal of the arms from the bag.These locking arms are provided witb pins 8 on the outer ends thereof and these pins engage in openings 9 in the end~ of frame member~ 6. In the specific embodiment shown, there are four frame members 6 Rpaced 90 apart around the periphery of the flexible bag 1.
When the ~our locking aro~ 7 and 71 have the pins 8 ~n engagement within the openings 9 of frame member~ 6 at both ends of bag 1 as shown in Yig . 1, the flexible bag is maintained in its extended position. By providing qeparable locking arms the insertion of the arms on the bag is facilitated in that each arm is separately engaged with the bag.
r~hen it is desired to permit the bag to collapse, the crossed locking arms 7 and 71 are removed from engagement with the frame members 6 so as to permit the walls of the bag to collapse a's shown in ~i'g. 3.
In use the flexible bag 1 is extended to its open position by moving the locking arms 7 and 71 into engagement with both the upper and bottom walls of the bag with the pins 8 in engagement within the apertures 9. The bag is supported in any convenient manner adjacent to the patient and the outer end of the inlet tube 2 is placed at *he surgical site. The tube 5 is closed off and the tube 3 is connected to any suitable source of suction. Blood from the surgical site will then be drawn into the flexible bag 1 which will maintain its extended open position by the frame members 6 and locking elements 7 and 71 serving to prevent collapse of the bag. When the bag is filled the inlet tube 2 is clamped off and the suction tube 3 i8 removed from the source of suction and clamped off. The locking arms 7 and 71 are then removed from engagement with the frame members 6. The reinfusion tube 5 is connected with an IV needle passing into the circulatory system of the patient. Blood will then flow from the bag 1 back into the patient through reinfusion tube S. If neces-~ary, external pressure may be applied to the bag to force the bag towards a collapsed po~ition.
1326~ 7 Obviously, many modifications and variations of the present invention are possible in light of the foregoing teachings.
What is claimed as new and is desired to be secured by Letters Patent is:
It is well known in the prior art to provide flexible bags for collecting blood from a surgical site by applying suction to the bag so as to draw the liquid from the surgical site into the bag. Such devices provide means for retaining the bag in an open position during the filling operation and for collapsing the bag during the reinfusion step. Such a device is disclosed in U.S. Patent 4,500,308, issued February 19, 1985.
The prior art also discloses various means for supporting flexible bags externally such as U.S. Patents 4,393,880;
4,312,353; 4,650,4~8 and 4,501,584. Such devices also include frames for maintaining flexible bagæ in an extended position such as disclosed in U.S. Patent 4,449,969. However, such frames are expensive, difficult to handle and do not provide means for permitting the flexlble bag to collapse when it is being emptied.
SummarY of the invention As embodied and broadly described herein, the inventlon provldes a relnfuslon bag lncludlng a flexlble contalner having a side wall and top and bottom end walls, and lnlet tube in the top end wall, an outlet tube adapted to be connected to a suctlon source ln the top end wall, a reinfuslon tube ln the bottom end wall, a plurallty of relatlvely rlgid frame members disposed around the side wall of the flexlble container and releasable locking means attached to said frame members and extending across the top and bottom end walls for retaining the end walls of the flexible container in an extended position 80 that the container 18 maintained in an open posltlon.
132~17 As embodied and broadly described herein, the invention provides a reinfusion bag having fir~t portions of the bag formed of flexible material, second portions of the bag being formed with relatively rigid material, inlet, outlet and reinfusion ports in said bag, and means releasably engageable with the relatively rigid second portions of said bag for retaining said bag in an extended uncollapsed position so that when said last named means is released and disengaged from said relatively rigid second portions of the bag, the flexible container is readily collapsible.
An object of the present invention is to provide a flexible container with means for locking the container in an extended position wherein the locking elements may be removed from the bag to permit the bag to collapse.
Another object of the present invention is to provide a flexible bag with integrally formed frame members disposed at spaced points around the periphery of the container with locking arms disposed at each end of the bag which may be moved between locked position in engagement with the frame members to retain the bag in an extended position to an unlocked position wherein the bag may collapse.
Other objects of the present invention will become more readily apparent upon consideration of the following detailed speclfication taken in connection with the accompanying drawings wherein, Brief Descri~tion of the Drawinas - Figure 1 is a perspective elevational view of a blood bag lncorporating the locking means according to the present invention;
- Figure 2 is an elevatlonal view of the bag when fllled with liquid with the locking mean~ disengaged from the bag and in disassembled position; and - Figure 3 is a similar view showing the bag being emptied.
','.''~
Detailed DeQcrl~tion of the Invention ~ eferring now more specifically to the drawings wherein like numerals indicate like parts throughout the sevetal views, there is shown at 1 in Fi~. 1 a flexible bag of a generally cylindrical configuration having end walls integrally formed therewith. The bag is provided with an inlet tube 2 which provides a means for withdrawing blood from a surgical site into the bag through a filter 4 on the inner end therof having a 170 micron mesh. ~ second tube 3 is provided at the upper end of tLe bag for connection with a suction source. The inner end of the tube 3 is provided with a restrictor (not shown) which has sufficiently s~all openings therein which only permits air to pass therethrough. The opposite end of the bag is provided with an IV spike or reinfusion tube 5. The bag is also provided with a separate port 13 at the upper end for adding heparin or other substances to the blood within the bag.
There is provided means for locking the bag in a fully extended position and this means includes a plurality of spaced frame members 6 which are formed of a relatively rigid material and which may be integrally formed with the bag or alternatively may be secured at each end portion therof to the flexible bag. At each end thereof the frame members 16 are provided with a pair of crossed locking arms 7 and 71. ~s shown in Fig, 2 the locking arms are connected together by central interengaging slots 11. One of each pair of locking arms 7 and 71 may be provided with finger apertures 12 to facilitate removal of the arms from the bag.These locking arms are provided witb pins 8 on the outer ends thereof and these pins engage in openings 9 in the end~ of frame member~ 6. In the specific embodiment shown, there are four frame members 6 Rpaced 90 apart around the periphery of the flexible bag 1.
When the ~our locking aro~ 7 and 71 have the pins 8 ~n engagement within the openings 9 of frame member~ 6 at both ends of bag 1 as shown in Yig . 1, the flexible bag is maintained in its extended position. By providing qeparable locking arms the insertion of the arms on the bag is facilitated in that each arm is separately engaged with the bag.
r~hen it is desired to permit the bag to collapse, the crossed locking arms 7 and 71 are removed from engagement with the frame members 6 so as to permit the walls of the bag to collapse a's shown in ~i'g. 3.
In use the flexible bag 1 is extended to its open position by moving the locking arms 7 and 71 into engagement with both the upper and bottom walls of the bag with the pins 8 in engagement within the apertures 9. The bag is supported in any convenient manner adjacent to the patient and the outer end of the inlet tube 2 is placed at *he surgical site. The tube 5 is closed off and the tube 3 is connected to any suitable source of suction. Blood from the surgical site will then be drawn into the flexible bag 1 which will maintain its extended open position by the frame members 6 and locking elements 7 and 71 serving to prevent collapse of the bag. When the bag is filled the inlet tube 2 is clamped off and the suction tube 3 i8 removed from the source of suction and clamped off. The locking arms 7 and 71 are then removed from engagement with the frame members 6. The reinfusion tube 5 is connected with an IV needle passing into the circulatory system of the patient. Blood will then flow from the bag 1 back into the patient through reinfusion tube S. If neces-~ary, external pressure may be applied to the bag to force the bag towards a collapsed po~ition.
1326~ 7 Obviously, many modifications and variations of the present invention are possible in light of the foregoing teachings.
What is claimed as new and is desired to be secured by Letters Patent is:
Claims (6)
1. A reinfusion bag including a flexible container having a side wall and top and bottom end walls, an inlet tube in the top end wall, an outlet tube adapted to be connected to a suction source in the top end wall, a reinfusion tube in the bottom end wall, a plurality of relatively rigid frame members disposed around the side wall of the flexible container and releasable locking means attached to said frame members and extending across the top and bottom end walls for retaining the end walls of the flexible container in an extended position so that the container is maintained in an open position.
2. A reinfusion bag according to Claim 1 wherein the locking means includes a pair of crossed locking arms on each end of the flexible container.
3. A reinfusion bag according to Claim 2 wherein the end portions of the locking arms include pins and apertures are provided in the frame members whereby said pins engage said apertures to maintain the container in an open position.
4. A reinfusion bag according to Claim 1 wherein the frame members are formed integrally with the flexible container.
5. A reinfusion bag having first portions of the bag formed of flexible material, second portions of the bag being formed with relatively rigid material, inlet, outlet and reinfusion ports in said bag, and means releasably engagable with the relatively rigid second portions of said bag for retaining said bag in an extended uncollapsed position so that when said last named means is released and disengaged from said relatively rigid second portions of the bag, the flexible container is readily collapsible.
6. A reinfusion bag according to Claim 5 wherein said last named means is disposed external of said bag.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16029388A | 1988-02-25 | 1988-02-25 | |
| US160,293 | 1988-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1326417C true CA1326417C (en) | 1994-01-25 |
Family
ID=22576297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000584355A Expired - Fee Related CA1326417C (en) | 1988-02-25 | 1988-11-28 | Liquid reinfusion bag system |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPH025955A (en) |
| AU (1) | AU606237B2 (en) |
| CA (1) | CA1326417C (en) |
| DE (1) | DE3904164C2 (en) |
| FR (1) | FR2627697B1 (en) |
| GB (1) | GB2215302B (en) |
| IT (1) | IT8812614A0 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955877A (en) * | 1989-10-06 | 1990-09-11 | Bioresearch, Inc. | Autotransfusion bag |
| JPH085706Y2 (en) * | 1990-01-11 | 1996-02-21 | 川澄化学工業株式会社 | Bone marrow transplant bag |
| DE4136405A1 (en) * | 1991-11-05 | 1993-05-06 | Friedrich W. 8000 Muenchen De Mletzko | Smoking product less harmful to health and non conducive to bronchial problems - comprising tobacco mixed with medicinal plant (extract) |
| DE9403245U1 (en) * | 1994-02-26 | 1994-05-05 | Metec A Schneider Gmbh | Device for collecting and roughly cleaning blood accumulated during operations at the operating site |
| US5713879A (en) * | 1994-02-26 | 1998-02-03 | Metec A. Schneider Gmbh | Device for collecting and filtering blood |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB856750A (en) * | 1958-07-02 | 1960-12-21 | Henry Arthur John Silley | Improvements in and relating to collapsible tanks |
| GB1480334A (en) * | 1973-07-09 | 1977-07-20 | Unilever Ltd | Safety valves for protection against liquid contamination |
| US4036361A (en) * | 1975-12-18 | 1977-07-19 | Leo Jacobson | Collapsible container |
| US4312352A (en) * | 1980-01-29 | 1982-01-26 | C. R. Bard, Inc. | Hanger, hook and handle assembly for urinary drainage bag |
| US4393880A (en) * | 1981-03-25 | 1983-07-19 | The Kendall Company | Device for collecting body liquids |
| US4397643A (en) * | 1981-05-04 | 1983-08-09 | Sherwood Medical Company | Drainage collection device with disposable liner |
| US4424053A (en) * | 1981-08-05 | 1984-01-03 | Bioresearch Inc. | Disposable autotransfusion device |
| US4449969A (en) * | 1982-02-03 | 1984-05-22 | The Kendall Company | Drainage receptacle with support frame |
| US4443220A (en) * | 1982-03-16 | 1984-04-17 | Hauer Jerome Maurice | Blood collection and transfer apparatus |
| US4500308A (en) * | 1982-11-16 | 1985-02-19 | Bioresearch Inc. | Autotransfusion device with twisted collection bag |
| US4501584A (en) * | 1983-03-04 | 1985-02-26 | The Kendall Company | Liquid drainage system with formed hinged support sheet |
| US4650478A (en) * | 1983-06-28 | 1987-03-17 | The Kendall Company | Liquid drainage system having a hook support member |
| GB2189773B (en) * | 1986-04-28 | 1989-12-20 | Farrell Containers Limited | Container apparatus for the storage and transportation of fluid material |
| US4798578A (en) * | 1987-02-13 | 1989-01-17 | Sherwood Medical Company | Autotransfusion device |
| US4838872A (en) * | 1987-02-13 | 1989-06-13 | Sherwood Medical Company | Blood collection device |
-
1988
- 1988-11-28 AU AU26325/88A patent/AU606237B2/en not_active Ceased
- 1988-11-28 CA CA000584355A patent/CA1326417C/en not_active Expired - Fee Related
- 1988-12-07 GB GB8828527A patent/GB2215302B/en not_active Expired - Fee Related
- 1988-12-21 IT IT8812614A patent/IT8812614A0/en unknown
- 1988-12-23 JP JP63327527A patent/JPH025955A/en active Granted
-
1989
- 1989-01-03 FR FR898900024A patent/FR2627697B1/en not_active Expired - Fee Related
- 1989-02-11 DE DE3904164A patent/DE3904164C2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2215302A (en) | 1989-09-20 |
| FR2627697A1 (en) | 1989-09-01 |
| JPH048057B2 (en) | 1992-02-13 |
| GB2215302B (en) | 1991-11-13 |
| AU606237B2 (en) | 1991-01-31 |
| IT8812614A0 (en) | 1988-12-21 |
| DE3904164C2 (en) | 1995-03-09 |
| FR2627697B1 (en) | 1992-06-12 |
| DE3904164A1 (en) | 1989-09-07 |
| AU2632588A (en) | 1989-08-31 |
| JPH025955A (en) | 1990-01-10 |
| GB8828527D0 (en) | 1989-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |