EP0523354A1 - Peristaltische Pumpe - Google Patents

Peristaltische Pumpe Download PDF

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Publication number
EP0523354A1
EP0523354A1 EP92108752A EP92108752A EP0523354A1 EP 0523354 A1 EP0523354 A1 EP 0523354A1 EP 92108752 A EP92108752 A EP 92108752A EP 92108752 A EP92108752 A EP 92108752A EP 0523354 A1 EP0523354 A1 EP 0523354A1
Authority
EP
European Patent Office
Prior art keywords
module
peristaltic pump
modules
pump according
support piece
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.)
Granted
Application number
EP92108752A
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English (en)
French (fr)
Other versions
EP0523354B1 (de
Inventor
Christophe Aubert
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.)
Swatch Group Management Services AG
Original Assignee
SMH Management Services AG
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 SMH Management Services AG filed Critical SMH Management Services AG
Publication of EP0523354A1 publication Critical patent/EP0523354A1/de
Application granted granted Critical
Publication of EP0523354B1 publication Critical patent/EP0523354B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • F04B43/1284—Means for pushing the backing-plate against the tubular flexible member
    • 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
    • F04B43/1292—Pumps specially adapted for several tubular flexible members

Definitions

  • the present invention relates to a peristaltic pump provided with means for improving its pumping and sealing qualities and for increasing the flexibility of use while maintaining a high level of security.
  • Peristaltic pumps are well known and have been used, especially in the medical field, for several years. These pumps allow a patient to be administered intravenously with medication in small doses and continuously.
  • the principle of these pumps is as follows. It consists in using a deformable plastic tube and crushing it locally against a fixed casing by means of a rotor driven in rotation by a motor and equipped with pressure rollers. The successive pressures exerted by the rollers on the tube make it possible to suck the liquid contained in a reservoir and to discharge it through the tube, towards the outlet of the pump. A pocket of liquid is thus moved through the tube between two successive rollers.
  • each pressure roller and the casing against which the tube is crushed must be adapted precisely to correctly crush the tube. Indeed, if the pressure roller is too close to the casing, it crushes the tube too strongly, which risks deforming and elongating. Conversely, if the tube is not properly squeezed, the pump does not deliver the correct amount of medication.
  • the pump is unreliable, which can be dangerous for the patient.
  • FIGS 1, 2 and 3 attached are diagrams illustrating the various problems that may arise in this type of pump in two modules of the prior art.
  • These pumps include a motor module 1 and a reservoir module 2.
  • the motor module 1 comprises a gripping head 3 and a rotor 4 provided with pressure rollers 5.
  • This module 1 is designed to be inserted inside the reservoir module 2 in a cavity 6 provided for this purpose (arrow SI, direction of introduction).
  • the reservoir module 2 comprises a liquid reservoir 7 connected by a tube 8 to a needle 9 placed at the outlet of the pump.
  • the needle 9 is implanted in the patient's blood network 10.
  • a part of the tube 8 is placed in front of the bottom of the cavity 6 which constitutes a support zone 11.
  • the module 1 is introduced inside the tank module 2 so that on the one hand the pressure rollers 5 crush the tube 8 against the support zone 11 (zone A) and that on the other hand, the head grip 3 comes into contact with the periphery of the entrance to cavity 6 (zone B), to ensure the tightness of the pump.
  • the manufacturing tolerances of the elements of the different modules these two conditions are never practiced simultaneously.
  • Figures 1, 2 and 3 illustrate these contact problems, the distances between these different elements having been exaggerated to facilitate the explanation.
  • the distance between the pressure roller 5 and the support zone 11 is too small and the tube 8 is too strongly compressed. Consequently, the liquid no longer circulates inside the tube 8, the motor driving the rotor 4 is forced to provide a higher torque in an attempt to overcome this blockage and the tube 8 is deformed. Finally, the pump may block.
  • the tube 8 can also be too strongly compressed due to a variation in its dimensions due to manufacturing tolerances. Indeed, if the tube 8 has on one of these sections a diameter greater than the average diameter for which the distance between the bearing area 11 and the rollers 5 has been calculated, it is completely crushed.
  • Figure 3 illustrates a third type of problem.
  • the tube 8 is correctly crushed (zone A), but the contact between the gripping head 3 and the periphery of the cavity 6 (zone B) is not perfect.
  • the pump is no longer waterproof.
  • water risks entering the interior of the pump and damaging it, in particular by damaging the rotor drive mechanism or by causing a short circuit in the battery supplying the motor.
  • the invention aims to remedy these drawbacks and increase the flexibility of use of peristaltic pumps while ensuring a high level of security.
  • said pumping means are housed in a first module and said support part is part of a second module, the first and second modules being provided with first positioning means, one with respect to the other and first assembly means used to form a set of two modules and to define an optimal distance between each pressure roller and the support piece, and in that said set of two modules and a third module are provided second assembly means making it possible to assemble said set of two modules to said third module.
  • the first positioning means we can precisely define the distance between the pressure rollers and the support piece and solve the pumping problems and, independently, thanks to the second positioning means, we can precisely place these two modules inside the third and solve the sealing problems.
  • the third module comprises a box provided with a through cavity
  • the second module is housed inside this cavity
  • the first module is designed to be introduced inside this cavity along a rectilinear path defining an insertion axis, until it is assembled with the second module using the first assembly means and thus forming a set of modules located in a first intermediate insertion position.
  • this set of modules is designed to be moved along said insertion axis, from this first position, to a second final insertion position in which it is assembled with the third module, by the second means of assembly.
  • the support piece is a block having a substantially V-shaped opening and it is hollowed out in its thickness, parallel to the bottom of this V-shaped opening so as to define at least one elastic wall, deformable under the action of the pressure rollers.
  • the tubing in which the liquid circulates is locally compressed against this elastic wall.
  • This characteristic makes it possible to further improve the pumping qualities of the pump according to the invention. Indeed, if this tubing has variations in diameter due to its manufacturing tolerances, the elastic wall of the support piece may be deformed so as to catch up with these variations. As a result, the tubing will always be properly crushed and the motor will not have to provide additional torque to crush this tubing.
  • the first module comprises a gripping head designed in such a way that it masks a filling orifice of the storage tank when the first and second modules have been assembled, thus preventing access to this port for a syringe needle for example.
  • FIG. 4 illustrates a peristaltic pump executed according to the preferred embodiment of the invention.
  • the pumping means 20 comprise a rotor 22 having at least one stage of at least one pressure roller.
  • the rotor formed by a body 24 has two stages, a first stage 24a comprising three pressure rollers 26a and a second stage 24b also comprising three rollers (not visible in FIG. 4) and angularly offset by 60 ° relative to the rollers 26a of the first stage.
  • the rollers of the lower stage 24b appear in FIG. 5 and are referenced 26b.
  • these rollers are designed to locally compress at least one tube 28 connecting a storage tank 30 of said liquid substance to the outlet 32 of the pump. This compression is carried out against a support piece 34.
  • the pump comprises a first module 36 comprising the motor means, a second module 38 comprising the support piece 34 and a third module 40 comprising the storage tank 30.
  • first module 36 and the second module 38 are provided with first positioning means with respect to each other and with first assembly means, making it possible to define a set of two modules in which the distance between each pressure roller 26a, 26b and the support piece 34 allows a necessary and sufficient crushing of the tubing 28, in order to effectively pump said liquid substance.
  • first positioning means and first assembly means will be described and referenced later.
  • This set of two modules 36, 38 and this third module 40 are also provided with second positioning means and second assembly means which will be described and referenced later and which allow once the three modules 36, 38, 40 assembled, d '' get the pump sealed. It can be seen in FIG. 10 that the assembly of the two modules 36, 38 is at least partially housed inside the third module 40.
  • the third module 40 has the general shape of a hollow box defining a through cavity 42, inside which is housed the second module 38.
  • the first module 36 has substantially the shape of '' a drawer which can be inserted inside said through cavity 42 along a rectilinear path defining an insertion axis XX, until being assembled with the second module thanks to said first assembly means, (see FIG. 10) .
  • the liquid substance reservoir 30 is disposed inside the through cavity 42 of the third module 40, mainly at the bottom and on the sides thereof and behind the second module 38 (relative to the direction of insertion arrow SI) .
  • the outlet 32 of the pump can be connected for example to a hypodermic needle or to an intravenous needle implanted in the patient's body.
  • this reservoir 30 can be filled thanks to a filling orifice 44 of the septum type.
  • the first module 36 has a generally elongated shape and comprises in its narrower front part, the rotor 22 and in its wider rear part, the motor means 21 as well as the control means 46 (not shown on this figure, but appearing in figure 5).
  • the rotor 22 appears in more detail on the section shown in Figure 5.
  • this rotor therefore comprises a body 24 of generally cylindrical shape whose axis YY serves as an axis of rotation.
  • the upper and lower parts of this body define two stages 24a and 24b on either side of a radial median plane in which is provided a toothed ring 48 intended to ensure the rotational drive of said rotor.
  • This ring 48 extends beyond the general envelope of the cylindrical body 24, which therefore has its largest diameter at this location.
  • each stage 24a, 24b there are provided three pins 50a, respectively 50b intended to receive the previously described pressure rollers, these pins having axes Z-Z parallel to the axis Y-Y.
  • the three pins of each stage are offset from each other by 120 °, and the pins 50a of the upper stage 24a are offset by 60 ° relative to the pins 50b of the lower stage 24b.
  • Each pin 50a, 50b has at its free end an annular rim 52 forming a shoulder 54.
  • the three pressure rollers 26a, respectively 26b are engaged on the pins 50a, respectively 50b, being held in place by snap-on the shoulder 54.
  • each roller which has a substantially cylindrical shape, has a coaxial through hole 56 intended to receive one of said pins.
  • each pin 50a, 50b is extended by a rod 58a, respectively 58b, of smaller diameter.
  • the body 24 has three grooves 60a, 60b opening at its lateral surface and having substantially in section, the shape of a V with rounded tip.
  • Each groove 60a, 60b is provided between two neighboring rollers on the same stage of the rotor.
  • Each rod 58a, 58b of a spindle 50a, 50b extends over the total height of the body 24 of the rotor 22 and passes right through the toothed ring 48 through an orifice 61.
  • the body 24 Centered on its Y-Y axis, the body 24 also includes two blind holes 64 in which are engaged respective pivots 66 forming part of a block 68 forming the bearing structure of the motor means 21.
  • the block 68 comprises a body 70 and a cover plate 72, preferably made of transparent plastic.
  • This body 70 and this cover plate 72 each have an advanced part 74, 76 respectively, these two parts constituting a yoke to allow the rotational mounting of the rotor 22.
  • the pivots 66 have come integrally with these advanced parts 74, 76 .
  • the body 70 has a cavity 78 serving as a housing for the motor means 21 and for the control means 46.
  • These motor means 21 comprise a drive motor whose output shaft 80 carries a pinion 82 meshing with an intermediate wheel 84 rotatably mounted on a lug 86 provided in this cavity.
  • the intermediate wheel 84 meshes with the ring gear 48 of the rotor 22.
  • These motor means 21 and these control means 46 can be constructed using a conventional watch movement whose axis of the hour hand constitutes the output shaft 80. This watch movement is powered by a button cell (not shown in Figure 5).
  • the tube 28 actually comprises (in the particular case of a rotor with two stages of pressure rollers), two tubes 28a, 28b, one for each stage of rollers.
  • These tubes 28a, 28b pass around the peripheral part of the rotor when the latter is assembled to the support piece 34.
  • These tubes join at their corresponding ends by Y-connectors, 90, the connector 88 being connected to the tank 30 (suction side of the pump), while the connector 90 is in communication with the outlet 32 (discharge side of the pump).
  • These pipes 28a, 28b are crushed by the rollers of the rotor 22 against the support piece 34 constituting the second module 38 and which will now be described.
  • FIGS. 6 and 7 illustrate more particularly this support piece.
  • the support piece 34 is a block having a substantially V-shaped opening 92 with a rounded tip.
  • This support piece is hollowed out in its thickness parallel to the bottom of its V-shaped opening, to form a recess 94 so as to define two elastic walls 96a, 96b, superimposed corresponding to the two stages 24a, 24b of the rotor 22.
  • the two pipes 28a, 28b described above are respectively crushed against these walls 96a, 96b, when the rotor 22 is assembled with this support piece 34.
  • Each wall 96a, 96b is extended at its two ends by gutters 97a, 97b, intended to receive the two pipes 28a, 28b and to support up to the two Y connections 88, 90 (see figure 4).
  • This support piece 34 is designed so that the first module 36 penetrates inside the opening 92 in V along the insertion axis XX. This support piece 34 is also symmetrical with respect to this axis XX.
  • this support piece is made in one piece and injected in a compressible elastic material, for example polyoxymethylene (POM) sold under the brand name Hostaform.
  • a compressible elastic material for example polyoxymethylene (POM) sold under the brand name Hostaform.
  • POM polyoxymethylene
  • this support piece 34 could also be in several pieces made of different materials.
  • the support piece could have the shape of a frame on which two flexible rubber or metal strips would be attached.
  • the deformable elastic wall 96a (respectively 96b) is thicker in its central part 98 than in these two end parts 99, so as to better resist the pressures exerted by the pressure rollers and not to break.
  • the elasticity of these walls 96a, 96b makes it possible to "make up” for the small differences in dimensions due to the manufacturing tolerances of the tubing 28.
  • the elastic walls 96a, 96b are designed to withstand a certain back pressure. blood.
  • the motor means 21 ceased to function, causing the rotor 22 to stop, and if the pipes 28a, 28b were compressed at one or two precise points between said walls 96a, 96b and the pressure rollers 26a, 26b, the force exerted by the flow of blood in the tubing 28a, 28b (outlet side of the pump) would not be sufficient to deform these walls 96a, 96b and allow a return of blood to the reservoir 30.
  • the walls 96a, 96b are designed to withstand at least arterial back pressures of 0.3 bar (0.3. 105 Pa). Preferably, they can resist up to a pressure of 1.5 bar (1.5.105 Pa).
  • the first module 36 When assembling the rotor 22 with this support piece 34, the first module 36 needs to be guided relative to the second module 38.
  • the upper face 100 and the lower face 102 of the support 34 (relative to FIG. 7), present on either side of the axis of symmetry XX, a recess 104 constituting a shoulder 106 forming a guide rail for the bottom of the body 70 and the cover plate 72 of the first module 36 (see FIG. 5).
  • Each guide rail 104 ends at its end directed towards the point of the V by a counter-stop surface 108.
  • This counter-stop surface 108 is oriented substantially perpendicular to the insertion axis XX.
  • the ends of the advanced parts 74, 76 of the body and of the cover plate are provided on each side of the insertion axis XX with two notches 110 having a stop surface 112 perpendicular to axis XX and cooperating with said counter-stop surfaces 108.
  • These stop and counter-stop surfaces therefore make it possible to limit the travel of the first module 36 once it has been introduced inside the part support 34. This appears better in FIG. 10.
  • These abutment 112 and counter-abutment surfaces 108 constitute first positioning means 114 of the first module 36 relative to the second module 38.
  • the first positioning means 114 could be constituted by a single counter-stop surface 108 and by a single notch 110.
  • each branch of the V-shaped support piece has at its end 116, in its upper part 118 and in its lower part 120, two hooks 122 directed towards the inside of this V-shaped part.
  • the first module 36 has, in its enlarged part and on its two lateral faces 124, two recesses 126 intended to cooperate with said hooks 122.
  • These hooks 122 and these recesses 126 constitute first means of assembly 128 of the first and of the second module (see FIG. 10).
  • Between the narrow part and the enlarged part of the first module 36 is provided on either side of the axis X-X a lateral inclined plane 129.
  • the third module 40 will now be described in more detail with particular reference to FIGS. 4 and 8 to 11. It will be noted that in FIGS. 8 to 11, the reservoir 30 and the pipes 28a, 28b have not been shown in order to do not overload these figures.
  • This third module 40 has a generally truncated cylindrical shape.
  • the through cavity 42 provided in the thickness has a substantially similar shape and the opening 130 of this cavity is on the truncated face 132 of the third module, (see FIG. 4).
  • the reservoir 30 of liquid to be administered is disposed substantially at the bottom of the cavity 42 relative to the opening 130 and has a generally crescent shape. It is arranged around the second module 38.
  • this third module 40 is in fact formed by two half-shells 134, 136 which are welded by ultrasound during manufacture.
  • the reservoir 30 is constituted by a bladder of flexible plastic material, for example PVC (polyvinyl chloride), covered with a waterproof coating or EVA (ethylene / vinyl acrylate copolymer).
  • the preferred volume of the bladder is of the order of 10 cc. This volume is however given for information only.
  • the third module 40 has, at the substantially rectangular opening 130 of the cavity 42 two side walls 138, 140 of thickness E then opening into the cavity 42 proper. These side walls 138, 140 define two shoulders 142 (see FIG. 9).
  • the block 68 forming the bearing structure of the motor means 21 extends in its widest part by a gripping head 144 coming from molding, (see FIG. 4). This gripping head facilitates the handling of the first module 36 and, moreover, once introduced into the third module 40, completely closes the through cavity 42 as well as the access to the filling orifice 44.
  • the first module 36 has at in addition to at least one elastic hook 146 (preferably two) made integrally with the gripping head 144 and designed to cooperate with the shoulder 142 (preferably both). These shoulders 142 and these elastic hooks 146 constitute the second means of assembly 148 of the first module 36 (more precisely of the set of two modules) with the third module 40 (see FIG. 11).
  • each hook 146 and the gripping head 144 also constitute second positioning means 150 of the first module 36 with the third 40.
  • the support piece 34 has, at its rounded median part, on its upper face 100 and on its lower face 102, a projection 152.
  • the third module 40 has on each of its upper internal faces 154, respectively lower 156, two blind holes 158, 159 intended to cooperate with the projection 152.
  • This projection and the first blind hole 158 constitute counter-support means 160 of the first module 36 relative to the second 38, in the first position insertion, (see figure 8)
  • the support piece 42 has at each end 116 of its two branches, a stud 162 formed integrally with the support piece 34. Each stud 162 projects from the upper 100 and lower faces 102 of said support piece 42.
  • the upper 154 and lower 156 internal surfaces of the through cavity 42 are each provided with two cells 166 intended to cooperate with said studs 162 (see FIG. 8).
  • These cells are of substantially oblong shape and have an evolving lateral clearance 167 which decreases along the axis of insertion X-X. In other words, these cells are wider on the side of the opening of the through cavity 42 and are narrower towards the bottom of said cavity.
  • Each cell 166 has an inclined plane 164.
  • the studs 162 and the cells 166 constitute guide means 168 which will be detailed below.
  • the third module 40 containing the second module 38 is presented separately from the first module 36.
  • the nurse can fill the reservoir 30 using a syringe, thanks to septum 44 (see Figure 4).
  • the second module 38 is positioned inside the through cavity 42, by virtue of the two projections 152 which each cooperate with the first two blind holes 158 (relative to the direction of insertion, arrow SI), of the cavity 42.
  • the nurse then introduces the first module 36 inside the third module 40 and more specifically inside the U-shaped opening 92 of the second module 38.
  • the inclined planes 129 come into contact with the triangular hooks 122, the two branches of the second module 38 deviate outward due to the inherent elasticity of the polyoxymethylene chosen to manufacture it.
  • the studs 162 move in the part 167 of the cells 166. This situation is shown in FIG. 9.
  • the nurse continues the introduction of the first module 136 until the stop 112 and counter stop 108 surfaces are in contact and simultaneously that the hooks 122 engage in the recesses 126 (situation shown in FIG. 10) .
  • This latter operation is facilitated by the fact that the pins 162 abut against the inclined planes 164 of the cells 166, which tends to bring the two branches of the support piece 34 back to their original position.
  • the set of two modules is in an intermediate insertion position ( Figure 10).
  • the pins 162 are substantially half of the cell 166 and the projections 152 begin to come out of the blind holes 158.
  • this intermediate insertion position access to the filling orifice 44 is sufficiently hidden to prevent any addition or withdrawal of liquid using a needle. It will also be noted that this intermediate insertion position is irreversible, that is to say that it is no longer possible to separate the first module 36 from the third module 40 once the peristaltic pump is placed in the intermediate insertion position. .
  • the nurse continues to move the first module or more exactly the set of two modules 36 and 38 in the insertion direction SI, until the elastic hooks 146 cooperate with the shoulders 142 and the head of gripping 144 comes into contact with the cutaway 132 thus ensuring the tightness of the pump (second final insertion position shown in FIG. 11).
  • the invention solves the problems of double contact points of the pumps according to the prior art (zones A and B in FIGS. 1 to 3).
  • the recesses 126 are slightly larger than the hooks 122 and thus there is no second fixed point of contact between these two modules.
  • this device comes from the fact that, in the intermediate insertion position, the filling orifice 44 of the reservoir 30 is hidden, preventing any variation in the contents of this reservoir using a syringe any.
  • this intermediate insertion position is irreversible and that in this position the motor of the peristaltic pump is not yet started, it is possible, with all the safety required by the medical field, that a qualified person fills the reservoir and introduces the first module 36 inside the third module 40 until they are placed in the intermediate insertion position. From this moment, the peristaltic pump can be taken care of by a less qualified person and be placed on the patient later, the complete closure ensuring the tightness of the assembly and triggering the operation of the pumping motor taking place once the pose on the patient performed.
  • the first module 172 comprises the rotor 22 and the drive means
  • the second module 174 comprises the housing 40 in the through cavity 42 from which the support piece 34 is fixed irremovable.
  • the first module 172 does not include the gripping head 144 which constitutes a third independent module 176.
  • the first module 172 is assembled in a first step with the second module 174 by virtue of the first positioning 114 and assembly 128 means, thereby solving the pumping problems.
  • the third module 176 is assembled with the second 174 thanks to the second assembly means 148, this third module simply playing the role of a cover and closing the through cavity 42. This thus solves the sealing problems.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • External Artificial Organs (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Insulating Bodies (AREA)
EP92108752A 1991-06-12 1992-05-25 Peristaltische Pumpe Expired - Lifetime EP0523354B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9107358A FR2677711B1 (fr) 1991-06-12 1991-06-12 Pompe peristaltique.
FR9107358 1991-06-12

Publications (2)

Publication Number Publication Date
EP0523354A1 true EP0523354A1 (de) 1993-01-20
EP0523354B1 EP0523354B1 (de) 1995-07-26

Family

ID=9413904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108752A Expired - Lifetime EP0523354B1 (de) 1991-06-12 1992-05-25 Peristaltische Pumpe

Country Status (12)

Country Link
US (1) US5249937A (de)
EP (1) EP0523354B1 (de)
JP (1) JP3170043B2 (de)
AT (1) ATE125597T1 (de)
CA (1) CA2070190A1 (de)
DE (1) DE69203668T2 (de)
DK (1) DK0523354T3 (de)
ES (1) ES2077917T3 (de)
FI (1) FI102693B1 (de)
FR (1) FR2677711B1 (de)
IE (1) IE70220B1 (de)
NO (1) NO178642C (de)

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WO2019105872A1 (en) 2017-11-28 2019-06-06 Bracco Injeneering S.A. Injection system

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US5688112A (en) * 1996-02-22 1997-11-18 Garay; Thomas William Rotor axis aligned tube and outlet for a peristaltic pump system
DE10062600C2 (de) * 2000-12-12 2002-12-05 Wom World Of Medicine Ag Peristaltische Schlauchpumpe
US7527608B2 (en) * 2002-08-12 2009-05-05 Lma North America, Inc. Medication infusion and aspiration system and method
FR2859507B1 (fr) * 2003-09-08 2006-02-17 Athena Innovations Pompe peristaltique a portee amovible deformable
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
US20060226310A1 (en) * 2004-03-29 2006-10-12 Hall Peter V Method of supporting tools and supplies upon a sloped surface
US8393879B2 (en) * 2004-04-27 2013-03-12 Hewlett-Packard Development Company, L.P. Peristaltic pump
US7591639B2 (en) * 2004-04-27 2009-09-22 Hewlett-Packard Development Company, L.P. Peristaltic pump
FR2871857B1 (fr) * 2004-06-22 2008-09-12 Gilson Sas Soc Par Actions Sim Cassette de pompe peristaltique comprenant un organe de reglage du pincement du tube
US8272857B2 (en) * 2008-02-22 2012-09-25 Medtronic Xomed, Inc. Method and system for loading of tubing into a pumping device
US8202090B2 (en) * 2008-02-29 2012-06-19 Pharmaco-Kinesis Corporation Artificial tooth medicating apparatus for controlling, regulating, sensing, and releasing medical agents into the body
GB2460025B (en) * 2008-05-09 2010-04-28 Brightwell Dispensers Ltd Peristaltic pump with removable tube
JP5241337B2 (ja) * 2008-06-12 2013-07-17 日機装株式会社 ローラポンプ及びローラポンプを備えた血液浄化装置
JP5298699B2 (ja) 2008-08-20 2013-09-25 セイコーエプソン株式会社 制御ユニット、チューブユニット、マイクロポンプ
JP5282508B2 (ja) 2008-09-29 2013-09-04 セイコーエプソン株式会社 制御ユニット、チューブユニット、マイクロポンプ
JP5195368B2 (ja) 2008-12-05 2013-05-08 セイコーエプソン株式会社 チューブユニット、制御ユニット、マイクロポンプ
US8292604B2 (en) * 2009-05-01 2012-10-23 Xerox Corporation Peristaltic pump
JP5569014B2 (ja) * 2010-02-03 2014-08-13 セイコーエプソン株式会社 流体輸送装置
IT1399646B1 (it) * 2010-04-21 2013-04-26 Rand Srl Apparato di filtrazione e pompaggio per uso medico
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JP2014079325A (ja) * 2012-10-15 2014-05-08 Seiko Epson Corp 流体注入装置
KR102049709B1 (ko) * 2012-11-14 2020-01-08 코비디엔 엘피 연동 펌프 카세트
JP5811221B2 (ja) * 2014-04-01 2015-11-11 セイコーエプソン株式会社 流体輸送装置
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Also Published As

Publication number Publication date
NO178642B (no) 1996-01-22
ES2077917T3 (es) 1995-12-01
FR2677711A1 (fr) 1992-12-18
ATE125597T1 (de) 1995-08-15
FI922712A0 (fi) 1992-06-11
FR2677711B1 (fr) 1993-10-08
NO178642C (no) 1996-05-02
FI922712A (fi) 1992-12-13
IE921714A1 (en) 1992-12-16
JPH05168709A (ja) 1993-07-02
DK0523354T3 (da) 1995-12-18
DE69203668D1 (de) 1995-08-31
EP0523354B1 (de) 1995-07-26
NO922302L (no) 1992-12-14
CA2070190A1 (en) 1992-12-13
US5249937A (en) 1993-10-05
JP3170043B2 (ja) 2001-05-28
FI102693B (fi) 1999-01-29
DE69203668T2 (de) 1996-03-14
FI102693B1 (fi) 1999-01-29
NO922302D0 (no) 1992-06-11
IE70220B1 (en) 1996-11-13

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