US3734351A - Press for a deformable bag - Google Patents

Press for a deformable bag Download PDF

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Publication number
US3734351A
US3734351A US00166112A US3734351DA US3734351A US 3734351 A US3734351 A US 3734351A US 00166112 A US00166112 A US 00166112A US 3734351D A US3734351D A US 3734351DA US 3734351 A US3734351 A US 3734351A
Authority
US
United States
Prior art keywords
support plate
flap
clamp screw
press
flaps
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 - Lifetime
Application number
US00166112A
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English (en)
Inventor
J Gaudin
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.)
Labaz SA
Original Assignee
Labaz SA
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
Application filed by Labaz SA filed Critical Labaz SA
Application granted granted Critical
Publication of US3734351A publication Critical patent/US3734351A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags

Definitions

  • the present invention relates to a press employed for the utilization of the contents of a deformable bag, particularly for the utilization of the contents of a blood bag, that is to say a bag containing blood previously taken from a donor.
  • It relates more particularly to a press adapted to apply a certain pressure to a deformable bag of this kind.
  • the blood contained in a blood bag may be used either completely for a blood transfusion or partially after separation by extraction of at least some of its constituents.
  • This penetration of air under pressure into a blood bag entails the risk of bubbles being carried along by the blood which could cause bubbles of air capable of giving rise to air embolism in the recipient in addition, this air under pressure also entails the risk of causing hemolysis of the blood with which it is in contact, as well as polluting it.
  • a blood bag in a press, known as an extraction press and formed of two flaps articulating on a common hinge, said flaps being subjected to pressure means enabling them to clamp between them the bag so placed.
  • the object of the present invention is to provide a press for a deformable bag, particularly for a blood bag, which is free from the abovementioned disadvantages and in particular is capable of being used both for an accelerated blood transfusion and for extraction by separation of the constituents of the contents of said bag.
  • a press for a deformable bag particularly for a blood bag, comprises two flaps articulating on a common hinge and pressure means adapted to urge said flaps towards one another in order to clamp a bag placed between them, said pressure means being associated with control means adapted to make a determined pressure threshold perceptible to an operator.
  • this control is obtained from an abrupt increase of the friction forces to be overcome in order to operate the pressure means.
  • this control is obtained from the reading of a pressure gauge connected to an aneroid capsule associated with one of the flaps of the press.
  • the press according to the invention is capable of being used as an extraction press.
  • one of its flaps is extended beyond the hinge by which the other flap is articulated to it, in such a manner as to form a plate adapted to be inserted into a slot provided for the purpose in a support base associated with said press.
  • FIG. 1 is an exploded view in perspective, by way of example, of a press according to the invention
  • FIG. 2 is a view in elevation of this press when used for an accelerated blood transfusion
  • FIG. 3 is a diagrammatical view in elevation of the press when used for a partial extraction of the contents of a blood bag
  • FIG. 4 is a partial view illustrating a modified construction of the press according to the invention.
  • a press according to the invention comprises two flaps 10, 11 articulating on a common hinge 12.
  • the flap 10 is preferably of metal and preferably has a gutter-shaped profile.
  • the fiap 11 is preferably transparent it is for example a sheet of synthetic material sold under the commercial name Plexiglas. Near one of its transverse edges this flap 11 is provided with a simple slot 13 by which it is engaged on the hinge 12. If desired the flap 10 may be formed of a transparent synthetic material.
  • This hinge 12 is a simple metal plate fixed by screws 14 to the flap 10 and has a free edgelS rolled into the shape of a crook, on which the flap 11 is engaged by its slot 13.
  • the flap 10 forms so-to-speak the base flap of the press and is extended beyond the hinge 12 by a plate 16, the purpose of which will be described below.
  • This plate 16 is pierced by a hole 17.
  • the flap 10 also carries a stud 18 the purpose of which will be described below, and in a corresponding position the flap 11 is provided with an aperture 19 by which it can be engaged on said stud 18.
  • a strap 20 which in the embodiment illustrated is in the form of a stirrup.
  • the side branches 21 of said stirrup are articulated by screws 22 on the side edges of the flap its central bar 23 has an aperture 24 engaging a tapped bush 25 formed by a male element 26 and a female element 27, the two elements being clamped on said central bar 23.
  • a threaded rod 28, hereinafter referred to as the clamp screw, is engaged by its screwthread in the tapped bush 25 and can be turned by means of a knob 29.
  • said clamp screw 28 is hollowed axially to form a blind recess 30 and widens externally to form a radial collar 31.
  • a calibrated spring 32 bearing against the bottom of said blind recess at its other end said spring is engaged on a centering stud 34 mounted on a support plate 35, which it thus presses against the flap 11; in contact with said flap 11 the support plate 35 carries axially a centering boss 36 engaged in a complementary depression 37 provided for the purpose in the surface of the flap 11 the relative roles of said boss and depression could obviously be reversed.
  • Engagement means are in addition provided between the clamp screw 28 and the support plate 35 in order to make said clamp screw and said plate integral in rotation beyond a predetermined axial movement of said clamp screw.
  • these engagement means comprise a bent finger 40 carried radially by the collar 31 of the clamp screw 28 and a pin 41 carried radially by the support plate 35.
  • engagement means could comprise projections or depressions formed on the clamp screw 28, or more precisely on the collar 31 of the latter, to cooperate with complementary depressions or projections provided on the support plate 35.
  • the press according to the invention is put into action by laying flat the flap 10 of the latter (FIG. 2), then placing a blood bag 50 in position on said flap 10 the suspension hole 51 usually provided in a bag of this kind is engaged over the stud 18 formed on the flap 10 of the press.
  • the flap 11 is then folded down on to the blood bag 50, the stirrup 20 is engaged over said flap 11, the support plate 35 being brought into contact with said flap 11 and centered on the latter by means of its boss 36 and of the depression 37 in said flap.
  • This axial movement causes progressive compression of the spring 32, thus applying pressure to the blood bag 50.
  • the operator is thus warned that he has reached a certain pressure threshold, determined by the compression of the calibrated spring 32 when the collar 31 of the rod 28 is in contact with the support plate 35 the spring 32 is therefore selected in accordance with the pressure threshold to be respected.
  • the press according to the invention When the press according to the invention is used as an extraction press (see FIG. 3), the plate 16 formed by the flap 10 is engaged vertically in a slot 52 formed for the purpose in a base 53. The press is then fastened in said base by a screw 54 which passes through the hole 17 in the plate 16 formed by the flap 10.
  • control means associated with the clamp screw 28 comprise an aneroid capsule 60 carried on its inner face by the flap 1 1.
  • This aneroid capsule 60 is connected to a pressure gauge 61 carried by the flap 11 on its outer face and visible to the operator.
  • a press for a deformable blood bag comprising two flaps, a common hinge pivotally connecting said flaps to one another, a strap fastened to one of said flaps remote from said hinge, a tapped bush fixed to said strap, a manually rotatable threaded clamp screw engaged by a screw thread in said bush and extending in the direction of the other flap,
  • a support plate which is in frictional contact with said other flap, and a calibrated spring disposed between and acting between said clamp screw and said support plate, the support plate being provided with engaging means adapted to connect said plate for rotation with the threaded clamp screw after a predetermined axial movement of the said threaded clamp screw.
  • centering means are provided between the support plate and said other flap, and wherein said means are formed as a boss carried by one of said parts and a recess complementary to said boss provided in the other part, in the axis of said plate.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
US00166112A 1970-08-03 1971-07-26 Press for a deformable bag Expired - Lifetime US3734351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7028554A FR2102412A5 (de) 1970-08-03 1970-08-03

Publications (1)

Publication Number Publication Date
US3734351A true US3734351A (en) 1973-05-22

Family

ID=9059690

Family Applications (1)

Application Number Title Priority Date Filing Date
US00166112A Expired - Lifetime US3734351A (en) 1970-08-03 1971-07-26 Press for a deformable bag

Country Status (10)

Country Link
US (1) US3734351A (de)
BE (1) BE770024A (de)
CA (1) CA950305A (de)
CH (1) CH536634A (de)
DE (1) DE2136242A1 (de)
ES (1) ES392728A1 (de)
FR (1) FR2102412A5 (de)
GB (1) GB1347057A (de)
IT (1) IT942432B (de)
NL (1) NL7110259A (de)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237881A (en) * 1978-12-26 1980-12-09 Anatros Corporation Device for the intravenous or enteric infusion of liquids into the human body at a predetermined constant rate
US4284209A (en) * 1979-06-21 1981-08-18 Barbour Jr Robert E Device and method for collecting blood plasma
US4337769A (en) * 1980-08-01 1982-07-06 Baxter Travenol Laboratories, Inc. Pressure infusion module
US4504267A (en) * 1980-11-28 1985-03-12 Parmelee William H Apparatus for intravenous injection of liquids
US4596558A (en) * 1985-09-13 1986-06-24 Queen's University At Kingston Pulsed external medication dispenser
AU619012B2 (en) * 1988-06-06 1992-01-16 Terumo Kabushiki Kaisha Liquid separator
US5308334A (en) * 1990-12-27 1994-05-03 Block Medical, Inc. Closed system for iv site flush
US5328477A (en) * 1993-06-21 1994-07-12 Sitko Phillip M Liquid infusion system
US5346476A (en) * 1992-04-29 1994-09-13 Edward E. Elson Fluid delivery system
US5352218A (en) * 1990-06-15 1994-10-04 Cobe Laboratories, Inc. Venous reservoir bag assembly
US5549562A (en) * 1991-06-24 1996-08-27 A.D.E.C.E.F. Self-contained drip apparatus
WO1996035462A1 (en) * 1995-05-08 1996-11-14 Minntech Corporation Soft shell reservoir in a cardiopulmonary system
US5657903A (en) * 1996-04-17 1997-08-19 Roberts; Jodie Schmidt Device for emptying contents from a flexible container
US5911716A (en) * 1992-01-24 1999-06-15 I-Flow Corporation Platen pump
US6105912A (en) * 1997-11-07 2000-08-22 Terumo Cardiovascular Systems Corporation Reservoir mounting bracket
US6113575A (en) * 1998-05-14 2000-09-05 Terumo Cardiovascular Systems Corporation Volume control apparatus for a flexible venous reservoir
US6251098B1 (en) 1992-01-24 2001-06-26 I-Flow, Corp. Fluid container for use with platen pump
US6358239B1 (en) 1992-01-24 2002-03-19 I-Flow Corporation Platen pump
US20040035880A1 (en) * 2002-08-21 2004-02-26 Coleman Thomas J. Viscous fluid dispenser
US20070017930A1 (en) * 2005-07-19 2007-01-25 Gorrie Megan A Toothpaste tube squeezer and method for efficiently removing toothpaste from a toothpaste tube
US20080215029A1 (en) * 1993-01-22 2008-09-04 I-Flow Corporation Platen pump
US20110108576A1 (en) * 2007-08-10 2011-05-12 Heinz Hartmann Tube dispensing device
EP2444478A1 (de) 2010-10-22 2012-04-25 Gerlach, Jörg, Dr. med. Röhrenförmiges Körperflüssigkeitsmassenaustauschsystem und Massenaustauschvorrichtung
WO2013019275A1 (en) * 2011-08-02 2013-02-07 Tibble Adam Fluid delivery devices and methods of use for collapsible fluid containers
US8763858B1 (en) * 2013-05-01 2014-07-01 Gilbert Warren Mouser, Jr. Tube extraction device
CN106102787A (zh) * 2014-01-20 2016-11-09 哈尔希恩生物医学公司 全血的被动分离
US20200277108A1 (en) * 2019-03-03 2020-09-03 Adam Charles Dickerson Tube Compressor
US20230210317A1 (en) * 2023-03-14 2023-07-06 Shenzhen Karon Electric Technology Co., Ltd. Full-automatic induction extrusion apparatus for emulsion and paste in tube packages

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627419A (en) * 1984-08-29 1986-12-09 The Board Of Regents, The University Of Texas Blood pump apparatus and method
FR2624378A1 (fr) * 1987-12-09 1989-06-16 Mambrini Jean Instillateur a microdebit
FR2624376A1 (fr) * 1987-12-09 1989-06-16 Mambrini Jean Instillateur a microdebit jetable
FR2624377A1 (fr) * 1987-12-09 1989-06-16 Mambrini Jean Instillateur a microdebit
JP2547636B2 (ja) * 1989-07-14 1996-10-23 テルモ株式会社 液体分離装置
AU665340B2 (en) * 1990-10-05 1996-01-04 Macnaught Pty Limited Controlled pressure fluid delivery device
DE69119086T2 (de) * 1990-10-05 1996-08-22 Macnaught Pty Ltd Vorrichtung zum abgeben von flüssigkeit unter kontrolliertem druck
DE4129271C1 (de) * 1991-09-03 1992-09-17 Fresenius Ag, 6380 Bad Homburg, De
AU3481993A (en) * 1992-01-24 1993-09-01 I-Flow Corporation Platen pump
ES2051649B1 (es) * 1992-12-11 1995-01-01 Grifols Grupo Sa Procedimiento y su dispositivo para la congelacion transporte y almac enamiento de bolsas de sangre, plasma y similares.
FR2717085B1 (fr) * 1994-03-11 1996-07-12 Medex Sa Procédé d'injection de liquide médical et son dispositif de mise en Óoeuvre.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1320275A (en) * 1919-10-28 Boach
US2766907A (en) * 1955-03-15 1956-10-16 Robbins Instr Corp Pressure infusion apparatus
US3211341A (en) * 1963-05-09 1965-10-12 Bailey Herbert Sterling Tube holder and dispenser
US3565292A (en) * 1969-03-03 1971-02-23 Walter J Jinotti Blood-profusing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1320275A (en) * 1919-10-28 Boach
US2766907A (en) * 1955-03-15 1956-10-16 Robbins Instr Corp Pressure infusion apparatus
US3211341A (en) * 1963-05-09 1965-10-12 Bailey Herbert Sterling Tube holder and dispenser
US3565292A (en) * 1969-03-03 1971-02-23 Walter J Jinotti Blood-profusing apparatus

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237881A (en) * 1978-12-26 1980-12-09 Anatros Corporation Device for the intravenous or enteric infusion of liquids into the human body at a predetermined constant rate
US4284209A (en) * 1979-06-21 1981-08-18 Barbour Jr Robert E Device and method for collecting blood plasma
US4337769A (en) * 1980-08-01 1982-07-06 Baxter Travenol Laboratories, Inc. Pressure infusion module
US4504267A (en) * 1980-11-28 1985-03-12 Parmelee William H Apparatus for intravenous injection of liquids
US4596558A (en) * 1985-09-13 1986-06-24 Queen's University At Kingston Pulsed external medication dispenser
AU619012B2 (en) * 1988-06-06 1992-01-16 Terumo Kabushiki Kaisha Liquid separator
US5693039A (en) * 1990-06-15 1997-12-02 Cobe Laboratories, Inc. Venous reservoir bag assembly
US5720741A (en) * 1990-06-15 1998-02-24 Cobe Laboratories, Inc. Venous reservoir bag assembly
US5352218A (en) * 1990-06-15 1994-10-04 Cobe Laboratories, Inc. Venous reservoir bag assembly
US5308334A (en) * 1990-12-27 1994-05-03 Block Medical, Inc. Closed system for iv site flush
US5549562A (en) * 1991-06-24 1996-08-27 A.D.E.C.E.F. Self-contained drip apparatus
US6251098B1 (en) 1992-01-24 2001-06-26 I-Flow, Corp. Fluid container for use with platen pump
US5911716A (en) * 1992-01-24 1999-06-15 I-Flow Corporation Platen pump
US6358239B1 (en) 1992-01-24 2002-03-19 I-Flow Corporation Platen pump
US7083068B2 (en) 1992-01-24 2006-08-01 I-Flow Corporation Platen pump
US7337922B2 (en) 1992-01-24 2008-03-04 I-Flow Corporation Platen pump
US5346476A (en) * 1992-04-29 1994-09-13 Edward E. Elson Fluid delivery system
US20080215029A1 (en) * 1993-01-22 2008-09-04 I-Flow Corporation Platen pump
US5328477A (en) * 1993-06-21 1994-07-12 Sitko Phillip M Liquid infusion system
WO1996035462A1 (en) * 1995-05-08 1996-11-14 Minntech Corporation Soft shell reservoir in a cardiopulmonary system
US5657903A (en) * 1996-04-17 1997-08-19 Roberts; Jodie Schmidt Device for emptying contents from a flexible container
US6105912A (en) * 1997-11-07 2000-08-22 Terumo Cardiovascular Systems Corporation Reservoir mounting bracket
US6113575A (en) * 1998-05-14 2000-09-05 Terumo Cardiovascular Systems Corporation Volume control apparatus for a flexible venous reservoir
US20040035880A1 (en) * 2002-08-21 2004-02-26 Coleman Thomas J. Viscous fluid dispenser
US7377403B2 (en) * 2005-07-19 2008-05-27 Megan Alexandria Gorrie Toothpaste tube squeezer and method for efficiently removing toothpaste from a toothpaste tube
US20070017930A1 (en) * 2005-07-19 2007-01-25 Gorrie Megan A Toothpaste tube squeezer and method for efficiently removing toothpaste from a toothpaste tube
US20110108576A1 (en) * 2007-08-10 2011-05-12 Heinz Hartmann Tube dispensing device
US8608028B2 (en) * 2007-08-10 2013-12-17 Heinz Hartmann Tube dispensing device
EP2444478A1 (de) 2010-10-22 2012-04-25 Gerlach, Jörg, Dr. med. Röhrenförmiges Körperflüssigkeitsmassenaustauschsystem und Massenaustauschvorrichtung
WO2013019275A1 (en) * 2011-08-02 2013-02-07 Tibble Adam Fluid delivery devices and methods of use for collapsible fluid containers
US20130035661A1 (en) * 2011-08-02 2013-02-07 Adam David Tibble Fluid delivery devices and methods of use for collapsible fluid containers
US8763858B1 (en) * 2013-05-01 2014-07-01 Gilbert Warren Mouser, Jr. Tube extraction device
CN106102787A (zh) * 2014-01-20 2016-11-09 哈尔希恩生物医学公司 全血的被动分离
EP3096807A4 (de) * 2014-01-20 2017-08-16 Halcyon Biomedical, Incorporated Passive trennung von vollblut
US20200277108A1 (en) * 2019-03-03 2020-09-03 Adam Charles Dickerson Tube Compressor
US20230210317A1 (en) * 2023-03-14 2023-07-06 Shenzhen Karon Electric Technology Co., Ltd. Full-automatic induction extrusion apparatus for emulsion and paste in tube packages

Also Published As

Publication number Publication date
ES392728A1 (es) 1973-07-01
DE2136242A1 (de) 1972-03-09
GB1347057A (en) 1974-02-13
CH536634A (fr) 1973-05-15
FR2102412A5 (de) 1972-04-07
CA950305A (en) 1974-07-02
IT942432B (it) 1973-03-20
BE770024A (fr) 1972-01-17
NL7110259A (de) 1972-02-07

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