GB1367391A - Pumping system - Google Patents

Pumping system

Info

Publication number
GB1367391A
GB1367391A GB284772A GB284772A GB1367391A GB 1367391 A GB1367391 A GB 1367391A GB 284772 A GB284772 A GB 284772A GB 284772 A GB284772 A GB 284772A GB 1367391 A GB1367391 A GB 1367391A
Authority
GB
United Kingdom
Prior art keywords
pump
control circuit
circuit
motor
pumping
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
Application number
GB284772A
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.)
Sherwood Medical Co
Original Assignee
Sherwood Medical Industries 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
Application filed by Sherwood Medical Industries Inc filed Critical Sherwood Medical Industries Inc
Publication of GB1367391A publication Critical patent/GB1367391A/en
Expired legal-status Critical Current

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
    • 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
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
    • 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
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • 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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/365—Air detectors
    • 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
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1458—Means for capture of the plunger flange
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/13—Infusion monitoring

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)
  • Emergency Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

1367391 Reciprocating pumps SHERWOOD MEDICAL INDUSTRIES Inc 20 Jan 1972 [4 Feb 1971] 2847/72 Heading F1A [Also in Divisions A5 and H2] A reciprocating pump for use in an infusion system Fig. 1 (not shown) includes a control circuit Figs.3 and 4 (not shown) and see Division H2 by which the pump is shut off when its actual pumping rate differs from its selected pumping rate by more than a predetermined amount. The pump comprises a piston 44 sliding in a disposable syringe 42 coupled to a two-way valve 40 having an inlet 36 and an outlet 46. The piston 44 is reciprocated through gearing 121-140 by a bi-directional D.C. motor 120, which is reversed whenever a projection or a magnet 150 on a carrier 140 connected to the piston actuates forward and reverse limit switches 154, 152. The motor may be driven by re-chargable nicklecadmium batteries 160 or from a transformed external A.C. source. The pump, valve, motor and batteries are removably held in a two-part moulded casing 90, 170 the former part also containing a printed circuit control board 156 for the pump. The control circuit allows any one of various predetermined pumping rates to be selected, the use of differing size syringes allowing the choice of differing ranges of pumping rates. The motor 120 is driven by pulses having a less than 100% duty cycle, the duty cycle being increased by the control circuit at the higher selected pumping rates, though the reverse piston stroke always occurs at maximum speed. During the off-time of the pulses, the motor 120 acts as a tachometer generating a back EMF, the size of which provides a measure of the pump load and which is used to adjust the on time of the pulses to compensate for load variations due e.g. to the use of different syringes or the pumping of different fluids. A battery variation compensation circuit is included in the control circuit, which decreases the off-time of the drive pulses during the forward pump stroke to compensate for the battery supply voltage falling with time. The rate control shut off circuit of the control circuit operates by comparing a derived analog wave form representative of the selected pumping rate with the actual pumping rate as determined from the frequency of actuation of the limit switches 154, 152. The control circuit also includes circuits which shut down the pump if the pump speed control system should fail in a way to cause the pump to operate at full speed, or if bubbles in the pumped fluid are determined by electrodes 212 (e.g. if the fluid source has been emptied), or at excessive pump discharge pressures, as well as an indicator circuit for these latter two conditions and a circuit allowing the pump to be primed. Reference has been directed by the Comptroller to Specification 1232655.
GB284772A 1971-02-04 1972-01-20 Pumping system Expired GB1367391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11269171A 1971-02-04 1971-02-04

Publications (1)

Publication Number Publication Date
GB1367391A true GB1367391A (en) 1974-09-18

Family

ID=22345341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB284772A Expired GB1367391A (en) 1971-02-04 1972-01-20 Pumping system

Country Status (5)

Country Link
US (1) US3739943A (en)
BE (1) BE778994A (en)
CA (1) CA989960A (en)
DE (1) DE2204900A1 (en)
GB (1) GB1367391A (en)

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DE2609699C2 (en) 1974-05-28 1985-05-23 Imed Corp., 92131 San Diego, Calif. Infusion set
US3985133A (en) * 1974-05-28 1976-10-12 Imed Corporation IV pump
US4037598A (en) * 1974-08-12 1977-07-26 Ivac Corporation Method and apparatus for fluid flow control
DE2660392C2 (en) * 1976-03-06 1983-10-20 Imed Corp., 92131 San Diego, Calif. Piston pump arrangement for an infusion apparatus
US4898579A (en) * 1987-06-26 1990-02-06 Pump Controller Corporation Infusion pump
US4838860A (en) * 1987-06-26 1989-06-13 Pump Controller Corporation Infusion pump
US4913703A (en) * 1987-09-30 1990-04-03 Sherwood Medical Company Safety interlock system for medical fluid pumps
US4919649A (en) * 1987-09-30 1990-04-24 Sherwood Medical Company Fluid delivery system
US5201711A (en) * 1987-09-30 1993-04-13 Sherwood Medical Company Safety interlock system for medical fluid pumps
US4884013A (en) * 1988-01-15 1989-11-28 Sherwood Medical Company Motor unit for a fluid pump and method of operation
US4886237A (en) * 1988-09-23 1989-12-12 Dennis Robert R Universal articulatable support for retaining intravenous stands in medical applications
US5097255A (en) * 1990-11-26 1992-03-17 Chen I Cheng Carrying security device for medical dropper
US5676651A (en) * 1992-08-06 1997-10-14 Electric Boat Corporation Surgically implantable pump arrangement and method for pumping body fluids
US5411482A (en) * 1992-11-02 1995-05-02 Infusion Technologies Corporation Valve system and method for control of an infusion pump
US5472420A (en) * 1993-06-03 1995-12-05 Infusion Technologies Corporation Valve system and method for control of an infusion pump
DE4428484C2 (en) * 1993-08-12 1997-05-22 Fresenius Ag Device for holding nutrient substrate bottles and associated pump
CA2129284C (en) * 1993-11-24 1999-03-09 Kenneth J. Niehoff Controlling plunger drives for fluid injection in animals
DE4420326A1 (en) * 1994-06-13 1995-12-14 Draegerwerk Ag Carrying device for an infusion system
US5628619A (en) * 1995-03-06 1997-05-13 Sabratek Corporation Infusion pump having power-saving modes
US7267666B1 (en) 1995-04-20 2007-09-11 Acist Medical Systems, Inc. Angiographic injector system with multiple processor redundancy
US6656157B1 (en) * 1995-04-20 2003-12-02 Acist Medical Systems, Inc. Infinitely refillable syringe
US8082018B2 (en) * 1995-04-20 2011-12-20 Acist Medical Systems, Inc. System and method for multiple injection procedures on heart vessels
US6099502A (en) * 1995-04-20 2000-08-08 Acist Medical Systems, Inc. Dual port syringe
US20030028145A1 (en) * 1995-04-20 2003-02-06 Duchon Douglas J. Angiographic injector system with multiple processor redundancy
US6689091B2 (en) * 1996-08-02 2004-02-10 Tuan Bui Medical apparatus with remote control
US5895371A (en) * 1996-08-27 1999-04-20 Sabratek Corporation Medical treatment apparatus and method
US6605057B2 (en) 1996-10-24 2003-08-12 Medtronic Ave, Inc. Reinforced monorail balloon catheter
US6398727B1 (en) 1998-12-23 2002-06-04 Baxter International Inc. Method and apparatus for providing patient care
US6231560B1 (en) 1999-02-10 2001-05-15 Baxter International Inc Method and apparatus for automatically controlling the level of medication
AU4185600A (en) * 1999-04-01 2000-10-23 Acist Medical Systems, Inc. An integrated medical information management and medical device control system and method
WO2001013785A2 (en) * 1999-08-20 2001-03-01 Acist Medical Systems, Inc. Apparatus and method of detecting fluid
US6669679B1 (en) 2000-01-07 2003-12-30 Acist Medical Systems, Inc. Anti-recoil catheter
US6626862B1 (en) * 2000-04-04 2003-09-30 Acist Medical Systems, Inc. Fluid management and component detection system
US6673048B1 (en) * 2000-05-24 2004-01-06 Acist Medical Systems, Inc. Pressure sleeve assembly
CA2717848C (en) * 2000-07-20 2013-06-11 Acist Medical Systems, Inc. Syringe plunger locking mechanism
WO2002064194A1 (en) * 2001-02-14 2002-08-22 Acist Medical Systems, Inc. Fluid injector system
AU2002240386A1 (en) * 2001-02-14 2002-08-28 Acist Medical Systems, Inc. Catheter fluid control system
AU2002247151A1 (en) * 2001-02-15 2002-08-28 Acist Medical Systems, Inc. Systems and methods for detection and measurement of elements in a medium
US7308300B2 (en) * 2001-05-30 2007-12-11 Acist Medical Systems, Inc. Medical injection system
CN1291692C (en) 2001-12-07 2006-12-27 阿西斯特医疗系统有限公司 Low pressure measurement devices in high pressure environments
US20030125662A1 (en) 2002-01-03 2003-07-03 Tuan Bui Method and apparatus for providing medical treatment therapy based on calculated demand
US8775196B2 (en) 2002-01-29 2014-07-08 Baxter International Inc. System and method for notification and escalation of medical data
US10173008B2 (en) 2002-01-29 2019-01-08 Baxter International Inc. System and method for communicating with a dialysis machine through a network
US8234128B2 (en) 2002-04-30 2012-07-31 Baxter International, Inc. System and method for verifying medical device operational parameters
US6880808B2 (en) 2002-05-03 2005-04-19 Acist Medical Systems, Inc. Gamma-stable high pressure stopcock
US7011038B2 (en) * 2002-12-27 2006-03-14 Louis Patsalos Hygienic and ergonomic breading machine
US20050177136A1 (en) * 2003-12-19 2005-08-11 Miller Landon C. Externally disposed pump for use with an internally mounted and compliant catheter
US20070045152A1 (en) * 2005-08-01 2007-03-01 Resmed Limited Storage system for an apparatus that delivers breathable gas to a patient
US8758294B2 (en) * 2005-12-27 2014-06-24 Acist Medical Systems, Inc. Balloon inflation device
US8057679B2 (en) 2008-07-09 2011-11-15 Baxter International Inc. Dialysis system having trending and alert generation
US10089443B2 (en) 2012-05-15 2018-10-02 Baxter International Inc. Home medical device systems and methods for therapy prescription and tracking, servicing and inventory
US8554579B2 (en) 2008-10-13 2013-10-08 Fht, Inc. Management, reporting and benchmarking of medication preparation
US8454328B2 (en) * 2009-01-12 2013-06-04 Milton Roy Company Multiplex reciprocating pump
RU2624327C2 (en) 2011-09-21 2017-07-03 БАЙЕР ХелсКер ЛЛСи Multifluid continuous pumping device, drive and actuating systems, and method
JP2015530659A (en) 2012-08-31 2015-10-15 バクスター・コーポレーション・イングルウッドＢａｘｔｅｒ Ｃｏｒｐｏｒａｔｉｏｎ Ｅｎｇｌｅｗｏｏｄ Drug request fulfillment system and method
SG11201503190RA (en) 2012-10-26 2015-05-28 Baxter Corp Englewood Improved image acquisition for medical dose preparation system
EP2911641B1 (en) 2012-10-26 2018-10-17 Baxter Corporation Englewood Improved work station for medical dose preparation system
CA2953392A1 (en) 2014-06-30 2016-01-07 Baxter Corporation Englewood Managed medical information exchange
US11575673B2 (en) 2014-09-30 2023-02-07 Baxter Corporation Englewood Central user management in a distributed healthcare information management system
US11107574B2 (en) 2014-09-30 2021-08-31 Baxter Corporation Englewood Management of medication preparation with formulary management
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AU2016205275B2 (en) 2015-01-09 2020-11-12 Bayer Healthcare Llc Multiple fluid delivery system with multi-use disposable set and features thereof
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JP7091240B2 (en) 2015-09-25 2022-06-27 シー・アール・バード・インコーポレーテッド Catheter assembly including monitoring capability
BR112019012719A2 (en) 2016-12-21 2019-11-26 Gambro Lundia Ab medical device system including information technology infrastructure having secure cluster domain supporting external domain
JP2023509521A (en) 2020-01-07 2023-03-08 バード・アクセス・システムズ，インコーポレーテッド Diagnostic systems and methods involving temperature-sensitive vascular devices
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Also Published As

Publication number Publication date
CA989960A (en) 1976-05-25
DE2204900A1 (en) 1972-08-17
US3739943A (en) 1973-06-19
BE778994A (en) 1972-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
49R Reference inserted (sect. 9/1949)
PLNP Patent lapsed through nonpayment of renewal fees