RU95102295A - Perfusion pump - Google Patents

Perfusion pump

Info

Publication number
RU95102295A
RU95102295A RU95102295/14A RU95102295A RU95102295A RU 95102295 A RU95102295 A RU 95102295A RU 95102295/14 A RU95102295/14 A RU 95102295/14A RU 95102295 A RU95102295 A RU 95102295A RU 95102295 A RU95102295 A RU 95102295A
Authority
RU
Russia
Prior art keywords
pump
blood supply
pump chamber
blood
supply hoses
Prior art date
Application number
RU95102295/14A
Other languages
Russian (ru)
Other versions
RU2101034C1 (en
Inventor
Е.В. Руднев
Original Assignee
Е.В. Руднев
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 Е.В. Руднев filed Critical Е.В. Руднев
Priority to RU95102295/14A priority Critical patent/RU2101034C1/en
Publication of RU95102295A publication Critical patent/RU95102295A/en
Application granted granted Critical
Publication of RU2101034C1 publication Critical patent/RU2101034C1/en

Links

Landscapes

  • External Artificial Organs (AREA)
  • Reciprocating Pumps (AREA)

Abstract

FIELD: peristaltic action pumps for blood supply in assisted circulation apparatus. SUBSTANCE: perfusion pump has closed pump chamber with vacuumized gas medium and blood supply hoses with inlet and outlet channels. Blood supply hoses are hermetically fixed and extend in the direction of running of magnetic field generated by block of electromagnets. Pump working member, which separates pump chamber from drive chamber filled with gas medium under pressure, is formed as elastoplastic diaphragm and elastoflexible ferromagnetic member positioned between diaphragm and blood supply hoses. Such construction allows blood supply hoses to be shielded from action of magnetic field. Collapsible casing of pump is manufactured in two versions, of flat or cylindrical shape. Disposable blood supply hoses may be readily replaced by means of hinged levers or differential toothed couplings. Exhaust openings, which communicate pumping cavity with environmental medium, serve to use pump for blood supplying as well as for vacuum pumping of pump chamber. Cavities of drive and pumping chambers are communicated with buffer volumes, such as balloons with gas medium under pressure and vacuumized balloons, to stabilize pressure in these chambers. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation.

Claims (1)

Изобретение относится к насосам перистальтического действия, применяемым ля подачи крови, например в аппаратах искусственного кровообращения. Сущность изобретения: в замкнутой полости насосной камеры с разреженной газовой средой герметично укреплены расположенные по направлению бегущего магнитного поля, создаваемого блоком электромагнитов, кровеносные шланги с входными и выходными каналами. Для экранирования кровеносных шлангов от действия магнитного поля рабочий орган насоса, отделяющий насосную камеру от заполненной газовой средой под давление приводной камеры, выполнен в виде упругоэластичной диафрагмы и упругогибкого ферромагнитного элемента, расположенного между диафрагмой и кровеносными шлангами. Разборный корпус насоса осуществлен в двух модификациях - плоской или цилиндрической формы и позволяет производить оперативную замену одноразовых кровеносных шлангов с помощью откидных рычагов или дифференциальных резьбовых муфт. Для использования насоса одновременно с его основным назначением и для вакуумной откачки собственной насосной камеры предусмотрены выхлопные отверстия, соединяющие полость насосной камеры с внешней средой, а для стабилизации давления в приводной и в насосной камерах их полости сообщаются с буферными объемами в виде баллонов с газовой средой под давлением и разрежением.The invention relates to peristaltic pumps used for supplying blood, for example, in cardiopulmonary bypass devices. The essence of the invention: in the closed cavity of the pump chamber with a rarefied gas medium, blood hoses with inlet and outlet channels located in the direction of the traveling magnetic field created by the block of electromagnets are hermetically strengthened. To shield the blood hoses from the action of the magnetic field, the pump working element separating the pump chamber from the filled gas medium under the pressure of the drive chamber is made in the form of an elastic elastic diaphragm and an elastic flexible ferromagnetic element located between the diaphragm and the blood hoses. The collapsible pump casing is implemented in two versions - flat or cylindrical in shape and allows the quick replacement of disposable blood hoses with the help of folding arms or differential threaded couplings. To use the pump at the same time as its main purpose and to vacuum pump out its own pump chamber, exhaust openings are provided that connect the cavity of the pump chamber to the external environment, and to stabilize the pressure in the drive chamber and in the pump chamber, their cavities communicate with buffer volumes in the form of gas cylinders under pressure and vacuum.
RU95102295/14A 1995-02-17 1995-02-17 Perfusion pump of peristaltic action RU2101034C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95102295/14A RU2101034C1 (en) 1995-02-17 1995-02-17 Perfusion pump of peristaltic action

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95102295/14A RU2101034C1 (en) 1995-02-17 1995-02-17 Perfusion pump of peristaltic action

Publications (2)

Publication Number Publication Date
RU95102295A true RU95102295A (en) 1997-02-10
RU2101034C1 RU2101034C1 (en) 1998-01-10

Family

ID=20164894

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95102295/14A RU2101034C1 (en) 1995-02-17 1995-02-17 Perfusion pump of peristaltic action

Country Status (1)

Country Link
RU (1) RU2101034C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307764B6 (en) * 2017-12-13 2019-04-17 Západočeská Univerzita V Plzni Peristaltic pump with magnetoelastic drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307764B6 (en) * 2017-12-13 2019-04-17 Západočeská Univerzita V Plzni Peristaltic pump with magnetoelastic drive

Also Published As

Publication number Publication date
RU2101034C1 (en) 1998-01-10

Similar Documents

Publication Publication Date Title
ATE68981T1 (en) CARDIOPULMONARY RESUSCITATION DEVICE.
GB1526693A (en) Apparatus for aiding the blood flow in patients
SE7702507L (en) DEVICE FOR PULSED BLOOD PUMPS
ATE534416T1 (en) MEANS FOR GENERATING LIQUID PRESSURE
GB1389869A (en) Diaphragm pumps with pressure pulsation damping chambers
SE9900350D0 (en) diaphragm Pump
RU95102295A (en) Perfusion pump
BR0313347A (en) Fluid operated pump
GB1400150A (en) Diaphragm pumps and pump assemblies
GB965251A (en) Improvements in and relating to fluid pumps
GB1258814A (en)
SU1618276A3 (en) Method and apparatus for cleaning inner surface of pipes
SE9803074L (en) Double-acting diaphragm pump for constant pressure and flow
GB1265655A (en)
GB819064A (en) Improvements in or relating to pumps
SU779633A1 (en) Diaphragm-type hydropneumatically driven pump
GB764928A (en) Improvements in fluid flow check valves and fluid pumps
SU641180A1 (en) Pneumatic drive of positive-displacement pump
GB2004331A (en) Peristaltic pumps
RU2181601C2 (en) Perfusion pump
SE7909301L (en) MEMBRANE PUMP
EP0200510A3 (en) Improvements in or relating to pumps
GB1426963A (en) Peristaltic pumps
SU1687862A1 (en) Direct-displacement pump
GB695556A (en) Improvements relating to the reduction of pulsations produced in fluids by the operation of pumps, blowers, fans, internal combustion engines, and the like

Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20050218