EP2333341A1 - Pompe tubulaire péristaltique - Google Patents

Pompe tubulaire péristaltique Download PDF

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Publication number
EP2333341A1
EP2333341A1 EP10014968A EP10014968A EP2333341A1 EP 2333341 A1 EP2333341 A1 EP 2333341A1 EP 10014968 A EP10014968 A EP 10014968A EP 10014968 A EP10014968 A EP 10014968A EP 2333341 A1 EP2333341 A1 EP 2333341A1
Authority
EP
European Patent Office
Prior art keywords
peristaltic
roller wheel
segment
pump
pressure
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.)
Withdrawn
Application number
EP10014968A
Other languages
German (de)
English (en)
Inventor
Thomas Merzhäuser
Joachim Sasse
Stefan Kürbis
Peter Zentner
Heinz Hemesath
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.)
WOM World of Medicine GmbH
Original Assignee
WOM World of Medicine GmbH
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 WOM World of Medicine GmbH filed Critical WOM World of Medicine GmbH
Publication of EP2333341A1 publication Critical patent/EP2333341A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • F04B49/035—Bypassing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/01—Pressure before the pump inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/09—Flow through the pump

Definitions

  • the invention relates to a peristaltic peristaltic pump, in particular for use in the medical field, having a roller wheel which can be driven about a roller wheel axis and has rollers mounted thereon whose roller rotation axes are arranged on a circle concentric with the roller wheel axis, the rollers projecting in part beyond the roller wheel Hose, which has a flexible and elastic pumping segment, wherein the pumping segment is fixable at its two opposite ends by means of a respective attachment point in the axial direction, and wherein the pumping segment is guided around the roller wheel with elastic tension.
  • the invention further relates to the use of such a peristaltic peristaltic pump for generating a fluid flow through a medical instrument.
  • Peristaltic peristaltic pumps of the structure mentioned above are known in a variety of variants.
  • the first basic concept is that the tube arranged around the roller wheel is pressed against the roller wheel by means of a pressure strap or the like.
  • a pressure strap or the like Such embodiments are for example from the literature US 4,798,580 and US 5,044,902 known.
  • the second basic concept on which the invention is based is that the elastic tube is pulled around the roller wheel by a tensile force of a suitable size with a sufficient circumferential angle, typically more than 90 ° and less than 270 °, usually in the range of 150 ° to 220 ° becomes. This will be a Pressure bar or the like dispensable.
  • the tensile force is dimensioned in coordination with the elastic properties of the hose so that in the region of a roller of a roller wheel of the inner cross section of the hose is reduced to virtually zero.
  • the delivery of the fluid in the hose is effected. Examples of this are in the literature US 4,537,561 and US 5,213,483 described.
  • a particularly advantageous variant of the second basic concept is in the reference DE 199 60 668 A1 described.
  • peristaltic peristaltic pumps in the medical field, for example for generating a flow through a body cavity by introducing a medical instrument, which is supplied with fluid by means of the peristaltic peristaltic pump
  • the pressure or backpressure is a critical factor.
  • a doctor wants a high flow to flush the body cavity.
  • this pressure is also a very critical size. Approximately 500 mbar, better 400 mbar, should never be exceeded.
  • Typical prints, which are medically safe are in the range of about 50 to 300 mbar.
  • peristaltic peristaltic pumps In peristaltic peristaltic pumps known construction extensive safeguards are set up to safely prevent an inadmissible increase in pressure in a body cavity when setting a high flow.
  • a pressure sensor is arranged which regularly monitors the pressure in the body cavity and / or the supply to the medical instrument or the pressure side of the peristaltic pump and regulates the drive of the roller wheel to lower speeds when the pressure is too high. It is even possible that the roller wheel is driven to reverse in the event of a strong pressure increase in the body cavity. This will be done especially if an inadmissibly high pressure could already set in at very low flow.
  • the roller wheel speed is preselected and otherwise constant, with a defined limit pressure can not be exceeded at any of the preselected speeds, without the need for a suitable pressure sensor and control of the speed of the roller wheel ,
  • the invention is therefore based on the technical problem of specifying a peristaltic peristaltic pump which can be realized in a simple construction, in particular neither measuring technique for the pressure in the body cavity or the pressure side of the peristaltic pump, nor control technology needed for the drive of the roller wheel, and which nevertheless safely excludes exceeding a predetermined maximum limit pressure.
  • the invention teaches a peristaltic peristaltic pump having a roller wheel driven about a roller wheel axis having rollers mounted thereon whose roller pivot axes are arranged on a circle concentric with the roller wheel axis, the rollers projecting partially beyond the roller wheel, with a hose a flexible and elastic pumping segment, wherein the pumping segment is fixed at its two opposite ends by means of a respective attachment point in the axial direction, wherein the pumping segment is guided with elastic tension around the roller wheel, wherein the length of the pumping segment in the relaxed state in relation to Distance between the attachment points to the roller axis of rotation is set with the proviso that when the roller wheel and pressurizing one end of the pump segment with a fluid pressure in the range of 10 to 400 mbar, a flow rate of the fluid of at least 0.01 l / min takes place through the pumping segment.
  • the roller wheel is typically set in rotation by means of an electromotive drive, whereby the pumping segment of the hose in the region of a roller is reduced in cross section.
  • the speed of the roller wheel may be unregulated, for example by applying a preselectable voltage (for analog electric motors) or frequency (for stepping motors) to the electric motor drive. It is also possible to keep the speed of the roller wheel constant by a control circuit at a preselectable speed.
  • a signal generator such as a speedometer disk, arranged, by means of which a speed signal is generated. This speed signal is then compared in an analog or digital comparator with a preselected desired signal.
  • the comparator increases the voltage or the frequency applied to the electric motor drive.
  • This control or regulation does not receive or require any signal from a pressure sensor arranged on the pressure side of the peristaltic peristaltic pump as an input signal.
  • a partial length of the hose is referred to, which is made of an elastic and flexible material.
  • partial lengths of the hose which are usually, but not necessarily made of a different material and / or different dimensions.
  • the partial length of the tube which forms the pump segment is limited and defined by the attachment points.
  • the attachment points are arranged in the geometric arrangement, relative to directions orthogonal to the roller wheel axis of rotation, at defined and fixed points in the context of the peristaltic pump.
  • the invention is based initially on the recognition that the cause of the non-linearity between rotational speed and flow at high pressures is that at very high pressures in the region of a roller of the roller wheel, the inner cross-section of the hose or the pump segment due to the (counter) pressure not more is reduced to practically zero. It is therefore due to the pressure Reflux, based on the narrowed inner cross section of the pump segment and its circulation around the roller wheel axis of rotation, counter to the direction of rotation of the roller wheel and consequently the conveying direction of the peristaltic peristaltic pump instead. This backflow is in turn a function of the pressure and is the higher, the higher the pressure on the pressure side of the peristaltic pump.
  • the invention uses this finding to set a maximum achievable pressure in medically acceptable pressure ranges, i. below 400 mbar, preferably below 300 mbar, by already allowing the establishment of a reflux under normal operating conditions. Because the fact that a flow is already possible even when the roller wheel is stationary, a defined backflow leak in the region of the reduced inner cross section of the pump segment in the region of a roller is established as it were. This backflow leak acts like a bypass valve from the pressure side to the feed side of the hose.
  • a peristaltic peristaltic pump according to the invention it is achieved that, with the simplest construction, namely without pressure-controlled regulation of the roller wheel drive and without pressure measurement and display, a peristaltic pump fulfilling all safety requirements for medical purposes is obtained.
  • a peristaltic peristaltic pump according to the invention can therefore be produced very inexpensively. It is also extremely easy to use, as an operator needs to preselect only a defined speed, with which the roller wheel then turns constant to another area code. Even at maximum preselected speed exceeding a defined maximum allowable pressure value is inherently excluded.
  • the tuning comprises the ratio of the length of the pump segment in the relaxed state to the length of the pump segment in the state clamped by means of the attachment points with the pump segment around the roller wheel.
  • the vote can basically be set up in two different ways.
  • By a series of experiments with different lengths of the pump segment in a relaxed state it can be checked whether the flow according to the invention is set up with the pump segment stretched around the roller wheel and with the stationary roller wheel.
  • the distance of an attachment point or the distances of both attachment points with respect to the roller rotation axis in a series of experiments can be varied and adjusted such that the flow according to the invention is set up with the pump segment and stationary roller wheel stretched around the roller wheel.
  • the proviso of the invention can be easily adjusted by experiments and assignment to the relevant structural design of the pump segment.
  • a peristaltic peristaltic pump according to the invention, as a rule, the distance between the attachment points and the roller rotational axis will not be adjustable. Rather, the length of the pump segment in the relaxed state will be regularly adjusted thereto in the above manner.
  • a peristaltic peristaltic pump is constructed such that the distance between at least one attachment point to the roller rotation axis is adjustable.
  • various tubes can also be used. With an unchangeable distance between the attachment points and the roller rotation axis, the length of the tube segment has been determined and adapted in a corresponding manner for each type of hose or hose segment. This can in particular, for example, in the context of a tube cassette according to the literature DE 199 60 668 A1 be done, which is hereby fully incorporated by reference.
  • a fluid pressure in the range from 10 to 300 mbar, preferably from 10 to 200 mbar, of one end of the pump hose section a flow rate of the fluid of 0.01 1 / min to 1 l / min, preferably to 0.5 l / min, most preferably to 0.1 l / min.
  • the tuning of the length of the pump segment in the relaxed state in relation to the distance of the attachment points to Rollenrad loftachse carried out with the proviso that at maximum speed of the roller wheel and sealed pressure side of the hose on the pressure side, a pressure of not more than 500 mbar , preferably not more than 450 mbar, most preferably not more than 400 mbar, in particular not more than 350 mbar or 300 mbar.
  • an optimization of the flow can be made to the effect that at maximum pressures above a maximum flow, for example of more than 0.6 l / min., Preferably more than 0.7 l / min., Most preferably more than 0.8 l / min., In particular more than 0.9 1 / min., For example, more than 1.0 l / min., Is reached.
  • a bypass line with a pressure-controlled bypass valve can be arranged between the regions of the ends of the pump segment.
  • the bypass valve can open at a pressure of 100 to 500 mbar, preferably 200 to 400 mbar, most preferably 300 to 350 mbar.
  • the clear cross section of the bypass line with the bypass valve open can be 10 to 100%, preferably 20 to 50%, of the clear cross section of the pump segment in the relaxed state. As a light cross section, the entire passage area for the fluid is called.
  • elastomeric silicone polymers typically the following materials are suitable: elastomeric silicone polymers, soft PVC or similar materials known to those skilled in the art.
  • Typical internal diameters are in the range of 6 to 10 mm, preferably 7 to 9 mm, for example 8 mm.
  • Typical wall thicknesses are in the range of 1 to 2 mm, for example 1.5 mm.
  • the invention also relates to the use of a peristaltic peristaltic pump according to the invention for generating a fluid flow through a medical instrument, wherein a fluid source is connected to a feed side of the hose, wherein the medical instrument is connected to a pressure side of the hose and wherein the roller wheel with a preselected and constant Speed is driven to convey the fluid from the feed side to the pressure side.
  • a fluid source is connected to a feed side of the hose
  • the medical instrument is connected to a pressure side of the hose and wherein the roller wheel with a preselected and constant Speed is driven to convey the fluid from the feed side to the pressure side.
  • a rotary switch or a keypad be provided, each switching position or Each button is associated with a defined constant speed of the roller wheel and the electric motor drive is driven accordingly.
  • a rotary switch and a continuous control such as a potentiometer may be provided.
  • a digital input or preselection of the speed by means of an input field is possible.
  • the fluid source is a fluid container located above, preferably 0.1 to 2 meters, most preferably 0.1 to 1 meters, of the higher end of the pump segment, the fluid container communicating with the feed side of the tube without an intermediate pump.
  • the hose pump works as it were as a booster for the hydrostatic pressure, which results from the arrangement of the fluid container. Compared to the classic bag suspension and height adjustment without a pump, a medically often desirable increased flow through the medical instrument is achieved.
  • the peristaltic peristaltic pump is equipped with a roller wheel 1 which can be driven about a roller wheel axis D which has rollers 2 mounted thereon whose roller rotation axes R are arranged on a circle concentric with the roller wheel rotation axis D, the rollers 2 projecting partially over the roller wheel 1 ,
  • the roller wheel rotation axis D and the roller rotation axes R are parallel to each other.
  • the electric motor drive of the roller wheel which is fed with preselectable operating voltages.
  • suitable power supply circuits are established.
  • a hose 3 is set up, which has a flexible and elastic pumping segment 4, in the exemplary embodiment of an elastomeric silicone polymer.
  • the pumping segment 4 is at its two opposite ends 5, 6 by means of a respective attachment point P1, P2 in the axial direction, fixed relative to the pumping segment.
  • the attachment points P 1 , P 2 may allow rotation of the end of the pumping segment 4 about an axis orthogonal to the axial direction of the pumping segment 4.
  • the pumping segment 4 is shown in the installed state, ie guided around the roller wheel 1 with elastic tension and tensioned.
  • the pumping segment 4 In the tensioned state, the pumping segment 4 has the length L2.
  • the pumping segment 4 In the relaxed state, that is not guided around the roller wheel 1, the pumping segment 4 has a length L1 (not shown).
  • the length L1 is smaller than the length L2.
  • the length is in each case the longitudinal extent of the central axis through the pumping segment 4.
  • the length L1 of the pump segment 4 in the relaxed state is set in relation to the distance A of the attachment points P1, P2 to the roller wheel axis of rotation D or to the length L2 with the proviso that when standing roller wheel 1 and loading one end P1, P2 of the pump segment 4 with a Fluid pressure of 100 mbar, a flow of fluid of about 0.3 l / min through the pumping segment 4 takes place.
  • the distance A of one or both attachment points P1, P2 to the roller rotation axis D can be adjustable. In general, however, the distance A will not be adjustable, and the length L1 of the pump segment 4 is tuned thereto in previous attempts to do so.
  • bypass line 7 with a pressure-controlled bypass valve 8 is arranged between the regions of the ends 5, 6 of the pump segment 4.
  • the bypass valve 8 opens at a pressure of about 300 mbar.
  • the bypass valve 8 can be designed in various ways. In the simplest case, it is a pressure-dependent, mechanical control element, with a valve seat and a spring-loaded closing element which opens without further control from the outside against the spring force or closes under the spring force.
  • the bypass line 7 can be designed as a flexible hose, which runs in a Abklemmelement.
  • a Abklemmelement comprises a support surface against which the bypass line 7 is applied, and an example electromotively driven Abklemmstellglied which presses on the opposite side of the support surface of the bypass line 7 on the bypass line 7 and clamps this against the support surface. In this case, a continuous variation of the flow cross section through the bypass line 7 and thus a continuous variation of the pressure can be achieved.
  • FIG. 2 the use of the peristaltic peristaltic pump according to the invention for generating a fluid flow through a medical instrument 11 is shown.
  • a fluid source 12 is connected at the feed side 9 of the tube 3.
  • the medical instrument 11 is connected, the end of which, for example, in a body cavity, not shown, can be inserted.
  • the roller wheel 1 is driven at a preselected and constant speed for conveying the fluid from the feed side 9 to the pressure side 10.
  • a rotary switch 13 is established. It is understood that instead of a rotary switch 13, a continuously operating actuator can be provided.
  • the fluid source is a fluid container 12, which is arranged approximately 1 m above the end 6 of the pump segment 4. Between the fluid container 12 and the feed side 9 of the tube 3 no pump or the like is interposed.
  • a peristaltic peristaltic pump according to the invention in the core effects an intensification of the hydrostatic pressure established by the fluid container 12.
  • the size A is here given in arbitrary relative units.
  • the speed is the speed of the roller wheel.
  • Graviflow refers to the flow when the roller wheel is stationary. Flow indicates the maximum flow when the outflow tap is open. Pressure in the dummy indicates the maximum pressure in the dummy when the outflow cock is closed. The values in brackets are readings taken after 2 hours of running time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • External Artificial Organs (AREA)
  • Reciprocating Pumps (AREA)
EP10014968A 2009-12-11 2010-12-10 Pompe tubulaire péristaltique Withdrawn EP2333341A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009058279.7A DE102009058279B4 (de) 2009-12-11 2009-12-11 Peristaltische Schlauchpumpe

Publications (1)

Publication Number Publication Date
EP2333341A1 true EP2333341A1 (fr) 2011-06-15

Family

ID=43501511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10014968A Withdrawn EP2333341A1 (fr) 2009-12-11 2010-12-10 Pompe tubulaire péristaltique

Country Status (3)

Country Link
US (2) US20120051943A1 (fr)
EP (1) EP2333341A1 (fr)
DE (1) DE102009058279B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201795A (zh) * 2015-10-14 2015-12-30 保定兰格恒流泵有限公司 一种浮动压块装置、泵头和蠕动泵
CN113164664A (zh) * 2018-12-07 2021-07-23 Wom医药世界公司 具有两个抽吸管线的医疗技术冲洗泵

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112156019A (zh) * 2020-10-28 2021-01-01 青岛市市北区福山老年公寓 一种智能鼻饲进食装置及控制方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816035A (en) * 1972-10-24 1974-06-11 E Malbec Peristaltic pump
GB1510814A (en) * 1974-06-25 1978-05-17 Malbec E Peristaltic pump
US4537561A (en) 1983-02-24 1985-08-27 Medical Technology, Ltd. Peristaltic infusion pump and disposable cassette for use therewith
US4798580A (en) 1987-04-27 1989-01-17 Site Microsurgical Systems, Inc. Disposable peristaltic pump cassette system
EP0394442A1 (fr) * 1987-12-01 1990-10-31 SAKAMOTO, Atsunobo Pompe a tube etire
US5044902A (en) 1989-03-13 1991-09-03 Edouard Malbec Cartridge for peristaltic pump with a flexible tube, and peristaltic pump fitted with such a cartridge
US5052900A (en) * 1990-04-11 1991-10-01 Austin Jon W Pressure relief valve for positive pressure pumps
US5213483A (en) 1991-06-19 1993-05-25 Strato Medical Corporation Peristaltic infusion pump with removable cassette and mechanically keyed tube set
US5814004A (en) * 1989-09-22 1998-09-29 Tamari; Yehuda System for regulating pressure within an extracorporeal circuit
DE19960668C1 (de) 1999-12-15 2001-08-16 W O M Gmbh Physikalisch Medizi Schlauchkasette für eine peristaltische Pumpe
EP1293671A2 (fr) * 2001-09-12 2003-03-19 Seiko Epson Corporation Pompe péristaltique

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Publication number Priority date Publication date Assignee Title
US3877609A (en) * 1971-09-13 1975-04-15 Baxter Laboratories Inc Measured dosing dispenser utilizing flow line deformer and method of dispensing
US5215450A (en) * 1991-03-14 1993-06-01 Yehuda Tamari Innovative pumping system for peristaltic pumps
JP2002089455A (ja) * 2000-09-12 2002-03-27 Teikku Kk 血液ポンプ
EP1664535B1 (fr) * 2003-06-06 2011-03-16 Innolab GmbH Pompe peristaltique
US7168930B2 (en) * 2003-09-29 2007-01-30 Bausch & Lomb Incorporated Peristaltic pump with air venting via the movement of a pump head or a backing plate during surgery
JP4621776B2 (ja) * 2005-12-01 2011-01-26 ミシガン クリティカル ケア コンサルタンツ，インコーポレイテッド 拍動回転式心室ポンプ
US20080154182A1 (en) * 2006-12-20 2008-06-26 Robert Martin Dual diameter arthroscopic irrigation/aspiration peristaltic pump system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816035A (en) * 1972-10-24 1974-06-11 E Malbec Peristaltic pump
GB1510814A (en) * 1974-06-25 1978-05-17 Malbec E Peristaltic pump
US4537561A (en) 1983-02-24 1985-08-27 Medical Technology, Ltd. Peristaltic infusion pump and disposable cassette for use therewith
US4798580A (en) 1987-04-27 1989-01-17 Site Microsurgical Systems, Inc. Disposable peristaltic pump cassette system
EP0394442A1 (fr) * 1987-12-01 1990-10-31 SAKAMOTO, Atsunobo Pompe a tube etire
US5044902A (en) 1989-03-13 1991-09-03 Edouard Malbec Cartridge for peristaltic pump with a flexible tube, and peristaltic pump fitted with such a cartridge
US5814004A (en) * 1989-09-22 1998-09-29 Tamari; Yehuda System for regulating pressure within an extracorporeal circuit
US5052900A (en) * 1990-04-11 1991-10-01 Austin Jon W Pressure relief valve for positive pressure pumps
US5213483A (en) 1991-06-19 1993-05-25 Strato Medical Corporation Peristaltic infusion pump with removable cassette and mechanically keyed tube set
DE19960668C1 (de) 1999-12-15 2001-08-16 W O M Gmbh Physikalisch Medizi Schlauchkasette für eine peristaltische Pumpe
EP1293671A2 (fr) * 2001-09-12 2003-03-19 Seiko Epson Corporation Pompe péristaltique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201795A (zh) * 2015-10-14 2015-12-30 保定兰格恒流泵有限公司 一种浮动压块装置、泵头和蠕动泵
CN113164664A (zh) * 2018-12-07 2021-07-23 Wom医药世界公司 具有两个抽吸管线的医疗技术冲洗泵

Also Published As

Publication number Publication date
DE102009058279A1 (de) 2011-06-16
DE102009058279B4 (de) 2016-05-12
US20120051943A1 (en) 2012-03-01
US9470221B2 (en) 2016-10-18
US20150198152A1 (en) 2015-07-16

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