CA1326417C - Liquid reinfusion bag system - Google Patents

Liquid reinfusion bag system

Info

Publication number
CA1326417C
CA1326417C CA 584355 CA584355A CA1326417C CA 1326417 C CA1326417 C CA 1326417C CA 584355 CA584355 CA 584355 CA 584355 A CA584355 A CA 584355A CA 1326417 C CA1326417 C CA 1326417C
Authority
CA
Grant status
Grant
Patent type
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
Application number
CA 584355
Other languages
French (fr)
Inventor
Leonard D. Kurtz
Joseph Licausi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bioresearch Inc
Original Assignee
Bioresearch Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Grant date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0001Containers for suction drainage, e.g. rigid containers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0001Containers for suction drainage, e.g. rigid containers
    • A61M1/0015Mechanical means for preventing flexible containers from collapsing when vacuum is applied inside, e.g. stents

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.

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:

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.
CA 584355 1988-02-25 1988-11-28 Liquid reinfusion bag system Expired - Fee Related CA1326417C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16029388 true 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
CA 584355 Expired - Fee Related CA1326417C (en) 1988-02-25 1988-11-28 Liquid reinfusion bag system

Country Status (5)

Country Link
JP (1) JPH048057B2 (en)
CA (1) CA1326417C (en)
DE (1) DE3904164C2 (en)
FR (1) FR2627697B1 (en)
GB (1) GB2215302B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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 Bag for bone marrow transplantation
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)
US5713879A (en) * 1994-02-26 1998-02-03 Metec A. Schneider Gmbh Device for collecting and filtering blood
DE9403245U1 (en) * 1994-02-26 1994-06-16 Metec A Schneider Gmbh An apparatus for collecting and coarse cleaning operations arising during blood at the surgical site

Family Cites Families (15)

* Cited by examiner, † Cited by third party
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
US4838872A (en) * 1987-02-13 1989-06-13 Sherwood Medical Company Blood collection device
US4798578A (en) * 1987-02-13 1989-01-17 Sherwood Medical Company Autotransfusion device

Also Published As

Publication number Publication date Type
GB8828527D0 (en) 1989-01-11 application
JPH048057B2 (en) 1992-02-13 grant
JPH025955A (en) 1990-01-10 application
DE3904164A1 (en) 1989-09-07 application
FR2627697B1 (en) 1992-06-12 grant
FR2627697A1 (en) 1989-09-01 application
GB2215302B (en) 1991-11-13 grant
DE3904164C2 (en) 1995-03-09 grant
GB2215302A (en) 1989-09-20 application

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Legal Events

Date Code Title Description
MKLA Lapsed