EP2890895A2 - Logement de tuyau flexible pour pompe à galets - Google Patents

Logement de tuyau flexible pour pompe à galets

Info

Publication number
EP2890895A2
EP2890895A2 EP13753167.9A EP13753167A EP2890895A2 EP 2890895 A2 EP2890895 A2 EP 2890895A2 EP 13753167 A EP13753167 A EP 13753167A EP 2890895 A2 EP2890895 A2 EP 2890895A2
Authority
EP
European Patent Office
Prior art keywords
hose
pump
pump head
lever mechanism
holder
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
EP13753167.9A
Other languages
German (de)
English (en)
Other versions
EP2890895B1 (fr
Inventor
Rolf Schnekenburger
Simon FLUCK
Andreas DISCH
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.)
Aesculap AG
Original Assignee
Aesculap 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 Aesculap AG filed Critical Aesculap AG
Priority to EP17210339.2A priority Critical patent/EP3324047B1/fr
Publication of EP2890895A2 publication Critical patent/EP2890895A2/fr
Application granted granted Critical
Publication of EP2890895B1 publication Critical patent/EP2890895B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04B43/1238—Machines, pumps, or pumping installations having flexible working members having peristaltic action using only one roller as the squeezing element, the roller 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
    • F04B43/1276—Means for pushing the rollers 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
    • F04B43/1284—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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the present invention relates to a peristaltic pump and more particularly to a tensioning device arranged in / on a hose receiving compartment of the hose or roller pump (squeeze pump) for applying a hose which can be inserted into the shaft, preferably of the one-way design.
  • Roller or hose (squeeze) pumps are positive displacement pumps in which the medium to be pumped is forced through it by elastic external mechanical deformation of a hose. Due to the gentle promotion of the medium (without this to shear or swirl) peristaltic pumps are used in particular for medical purposes.
  • flexible / elastically deformable hose is inserted so that it is guided around a rotatable pump head over a predetermined peripheral portion, on which a number of angularly spaced rollers are rotatably mounted, which are sequentially brought into rolling engagement with the tube with corresponding rotation of the pump head and compress this / Disconnect.
  • the hose is either supported on the outside of the pump housing or it is stretched with a predetermined tensile force around and against the pump head.
  • Hose section is usually created by the inherent elasticity of the tubing, due to which the tube is its original design
  • Hose pump especially in their medical use form as a one-way article that come directly into contact with the fluid. These include primarily the hose, which must therefore be as simple as possible to expand and use. For this purpose, a large number of hose units and tensioning devices are known from the prior art, of which a few are to be mentioned below:
  • Drive shaft for example, an electric motor or one to this
  • the pump head is a rather complex component consisting of a plurality of relatively movable / rotating parts (as already indicated above), which actually would not have to be replaced because it is not contaminated directly from the fluid. That's why it's essential
  • the hose must be removed from the pump head or raised again, with a biasing force must be overcome, with which the hose is stretched around the pump head.
  • a special clamping mechanism has been developed by means of which the hose can be tensioned and tensioned for a change operation.
  • the G 94 1 1 183 discloses a simple construction of such a clamping device. Consequently, the tube is with two axially spaced bead-like
  • a driving bar as a hose receiving, which is firmly connected at its two axial ends to the hose at two axially spaced hose sections, such that the hose (hose center section) forms a loop between the beam ends.
  • the bar and hose form a separate, exchangeable hose unit.
  • the tube thus formed is now placed / guided with its loop area over the pump head and the driving bar locked in a jig.
  • the tensioning device preferably provides a guide rail / groove for the driving bar, along which the driving bar is moved under tensioning of the loop area until it engages in a releasable holder / latching within the hose receiving compartment.
  • One goal is to facilitate the insertion process for a hose or for a hose unit, in particular the one-way design.
  • Another goal is to improve the safety of the peristaltic pump.
  • Embodiments of the invention are the subject of at least the dependent claims.
  • a basic idea of the invention therefore consists in equipping the peristaltic pump with a hose receiving compartment, into which the hose can be inserted almost without tension. Furthermore, the peristaltic pump has a hose tensioning device with a preferably manually or electromotively operable lever mechanism to the hose over a predetermined
  • a medical peristaltic pump having a pump housing in which a tubing receiving compartment is formed or received, in which a pump head / pump rotor
  • Hose unit with the pump head comes in this at least partially spanning engagement or can be brought (under elastic longitudinal expansion of the hose).
  • the tension (also pulling force) with which the hose is to be applied or applied to the pump head is applied by a pull / tension device arranged on the pump housing (ie provided as a fixed component of the peristaltic pump) which interacts with the hose unit or the pump head. so that during their (manual / motor) actuation of the hose is clamped around the pump head.
  • the clamping device has a permanently installed on the pump housing and thus not to be regarded as a tool lever mechanism.
  • a hose or a hose unit can be easily inserted and tensioned by each person.
  • the removal of a hose or hose unit is done simply by the bias of the hose around the pump head released via the lever mechanism and then the
  • Hose / hose unit removed from the hose receiving compartment virtually without force becomes. Since the lever mechanism is part of the peristaltic pump, this is not changed every time, so that the operation of the peristaltic pump remains inexpensive.
  • the hose unit is preferably formed as a replacement component accordingly from the flexible hose and a bar-like hose holder, which holds the hose at two hose - longitudinally spaced positions (to form a hose loop). Furthermore, the pump housing or on the
  • Hose receiving compartment arranged tensioning device in the form of
  • Lever mechanism provided for (the tube exciting) moving preferably the hose holder (or the pump head) with at least one lever element (actuator or plunger member as defined above), on which a clamping device or an undercut forming
  • a latching device is provided which, upon reaching a hose tensioning position, engages with a counterclamping / latching device arranged on the hose holder of the (replaceable hose unit) for locking the hose mount and the tensioning device in their hose tensioning position.
  • Lever mechanism for clamping the hose around the pump head pivoted (preferably folded towards the hose receiving compartment). At the same time this pivotal movement of a lever member through the entire
  • Lever mechanism in a sliding movement preferably the hose holder (or the pump head) implemented in hose - tensioning direction.
  • the clamping / locking device comes on the part of the lever member with the counter clamping / - rast recognized by the hose holder into engagement and prevents or prevents inadvertent pivoting of the lever element and / or a displacement of the hose holder (in the case of a stationary
  • a lever element of the lever mechanism at the same time also has a protective cap for the at least partial (front) cover of the
  • Hose storage compartment As a result, the hose receiving compartment is opened or closed at the same time (automatically) by pressing the tensioning device, thus protecting the moving parts therein, such as the pump head or the hose, from the outside. This also increases the safety of the peristaltic pump.
  • Another aspect of the invention may provide that the protective cap either forms or is fixed to the lever element, which acts as a handle
  • lever mechanism of the lever mechanism is provided or that lever element (plunger element) forms or is fixed to this, which can be actuated via the handle for the transmission of leverage on the hose holder.
  • lever element plural element
  • An actuator or a handle which is directly or indirectly hinged to the pump housing and a plunger member which is operatively connected for power transmission with the lever.
  • the protective cap can therefore be assigned to either the handle or the plunger element.
  • the handle at the same time has or is the protective cap
  • this may have the shape of a cover plate.
  • the handle may have the shape of a bow handle, a buckle / operation button, a toggle lever or the like ergonomic shape.
  • Actuating function associated with different elements of the lever mechanism they can be optimally adapted without compromising the remaining function constructively.
  • a hose receptacle According to another aspect of the invention, a hose receptacle
  • the lever mechanism preferably be provided as part of the lever mechanism, which is slidably arranged or can be arranged in or on the hose receiving compartment and in which the hose via the formed or fixed thereto hose holder can be used or inserted / mounted.
  • the lever mechanism acts on the tube receptacle preferably as a further element of the lever mechanism to move relative to the fixed (non-displaceable) pump head (and thereby entrains the tube holder) such that the free (loop-shaped) hose center section abuts the pump head in a spanning manner.
  • the hose middle section in inserted, unstrained condition also be almost straight or already preceded.
  • lever mechanism is designed to be self-locking in addition to the latching / mating latching device, i. when the handle pivots during their actuation to tension the hose over a kind of dead center and then almost automatically works / snaps into its end clamping position.
  • a stop or stop projection may be provided in the
  • Hose receptacle is formed and presses when reaching the hose - clamping position against the hose holder (or the hose receptacle) to block their further movement in hose - tensioning direction.
  • Hose unit for a hose pump according to the invention (separate from
  • tube pump preferably designed as a one-way component) provided consisting of a bar-like hose holder
  • Hose pump can be brought into holding engagement.
  • the hose unit can be produced very inexpensively due to the few components and is therefore particularly suitable as a one-way item.
  • a transversely projecting tab is formed on the tube holder, which is used for manual handling of the tube unit at the installation / Removal process and preferably as a detent of the tensioning device / the lever mechanism in the hose - is adapted clamping position. This facilitates the handling of the hose unit.
  • a transversely projecting tab is formed on the tube holder, which is used for manual handling of the tube unit at the installation / Removal process and preferably as a detent of the tensioning device / the lever mechanism in the hose - is adapted clamping position. This facilitates the handling of the hose unit.
  • the tensioning device counter-latching element (tab) is changed on the part of the hose unit with each exchange. This can do that
  • Tube holder are manufactured as a one-way article, since no consideration has to be taken of its durability.
  • Fig. 1 shows a first preferred embodiment of the invention with a
  • Fig. 2 shows a second preferred embodiment of the invention with a
  • manually operated lever mechanism as a clamping device with fixed hose receiving and buckle-shaped handle in open (untensioned) and closed (strained) state
  • Fig. 3 shows a third preferred embodiment of the invention with a
  • manually operated lever mechanism as a clamping device with fixed hose holder and plate-shaped handle, in open (unclamped) and closed (cocked) state
  • Fig. 4 shows a fourth preferred embodiment of the invention with a
  • Fig. 5 shows a fifth preferred embodiment of the invention with a manually operated lever mechanism as a tensioning device with displaceable / movable hose receiving and key-shaped handle in untensioned and tensioned state
  • Fig. 6 shows a sixth preferred embodiment of the invention with a manually operable lever mechanism as a clamping device with
  • Fig. 7 shows a seventh preferred embodiment of the invention with a
  • electromotive actuated lever mechanism as a clamping device with movable / movable hose receiving and and a
  • Hose receptacle in open (unclamped) and closed
  • Fig. 8 shows as an illustrative example the housing of a device according to the invention
  • Fig. 9 shows the specific embodiment of the lever mechanism according to the invention present with a flap-shaped lever element as a handle
  • FIG. 10 shows the side view of the lever mechanism with inserted hose unit according to FIG. 9 in hose clamping position (with the front flap closed), FIG.
  • Fig. 1 1 shows the top view of a separately manufactured hose unit according to the
  • FIG. 12 shows the side view of the hose unit according to FIG. 11.
  • a hose receiving compartment 1 of a peristaltic pump according to FIG. 8 is shown in detail, which is equipped with a clamping device with lever mechanism 2.
  • the hose pump of the invention basically has a pump housing 4, on the front side in this case the
  • Hose receptacle 1 is arranged, such that it faces the front of the
  • Pump housing 4 opens.
  • a pump head 6 consisting of a motor-driven, rotatable
  • a control panel 8 which is also placed on the front of the pump housing 4, serves to program a control at least for the electric drive of the pump head, for example, to adjust the speed or on and off times of the peristaltic pump.
  • on and off buttons are arranged on the front side of the pump housing.
  • the tube receiving compartment 1 is formed in the form of a substantially rectangular shell or depression, which is either manufactured in one piece with the pump housing 4 or used as a separate component in a corresponding section of the pump housing 4.
  • the tube receiving compartment 1 On two opposite walls of the hose receiving compartment 1 are each one
  • Notched 12 worked out, which serve as a tube receptacles and in which a hose or a hose unit 14 can be used.
  • the notches 12 are aligned with each other for this purpose, such that their alignment line arranged radially offset to the pump head 6.
  • this lever mechanism consists of a handle 16 articulated pivotably on the pump housing 4 in the form of a handle bar which has a joint (not shown), a spring device or a toothed transmission with a push element
  • the pusher element 18 is operatively connected.
  • the pusher element 18 has in plan view according to 1 is a substantially rectangular plate shape, the size of which is sufficient to cover the tube receiving compartment 1 as far as possible or even completely.
  • the thrust element 18 is further connected to the axis of rotation of the pump head 6 and forms in the present case a bearing for the axis of rotation.
  • the thrust element 18 may consist of two parallel spaced plates, which are fixed to each other and between which the pump head is rotatably supported.
  • the drive motor for the pump head 6 (not further shown) is also attached to the pusher element 18.
  • the thrust element 18 is displaceably guided on the pump housing 4 such that it can not be lifted off the pump housing 4.
  • the mounting of the pump head 6 is further selected so that the pump head 6 projects beyond the thrust element 18 on the plate edge of the thrust element 18, which faces the alignment line.
  • the hose unit 14 can be seen, which is inventively provided as a hose pump separate component and optionally in the
  • Hose receiving compartment 1 can be used.
  • the hose unit 14 therefore consists of a flexible, preferably elastically deformable (stretchable in the tube longitudinal direction) tube 20 to which two brackets or engagement elements 22 are attached or formed at an axial distance from each other, which represent a total of the hose holder of the hose unit.
  • These brackets 22 form radial circumferential projections or collars, which can be brought into undercut engagement with the notches 12 on the hose receiving compartment 1.
  • the axial distance of the brackets 22 is selected so that when the
  • Tube 20 is inserted into the two notches 12, so that the brackets 22 create behind the notches 12 to the tube receiving compartment 1, which is not stretched or only slightly stretched therebetween extending hose center portion 20a, whereby it follows the alignment line substantially.
  • the tube receiving compartment 1 is partially covered with a fixed plate 24, wherein the fixed Plate 24 has an inner protrusion 24a, in which that part of the pump head 6, which protrudes from the plate-shaped thrust element 18 in the direction of alignment
  • Closing the tube receiving compartment 1 dips or retracts.
  • Embodiment of the invention can be described with reference to FIGS. 1 and 8 as follows.
  • the hose receiving compartment 1 is opened by the bow-shaped handle 16 according to FIG. 1 is manually opened to the left, whereby the plate-shaped pusher 18 together with the pump head 6 via the lever mechanism to the left, i. is moved away from the alignment.
  • the hose unit 14 can now be inserted into the notches 12 as described above without any effort and thus easy.
  • the bow-shaped handle 16 is manually folded in the direction of alignment, said folding or pivoting movement is transmitted via the lever mechanism with a corresponding reduction on the plate-shaped thrust element 18 for the displacement. That is, with / by pivoting the handle 16 in the direction of line of flight, the plate-shaped pusher 18 is pushed toward the fixed plate 24 forward, at the same time the rotatably mounted pump head 6 is pressed against the tube center portion 20a and advanced.
  • Partial scope is stretched by this.
  • the hose center section 20a is thus elastically deformed in a U-shape, resulting in a predetermined application force between the pump head 6 and the hose 20.
  • this exceeds a kind of dead center of the lever mechanism, whereupon the handle 16 by utilizing the already generated clamping force of the hose center portion 20 a on the pump head 6 in the direction of the end position of the handle (according to the left Representation in Fig. 1) is forced.
  • the lever mechanism according to the first embodiment of the invention is equipped with a kind of self-locking, which holds the handle 16 automatically, without additional locking elements, in its tensioned end position.
  • FIG. 2 and 3 show alternative embodiments of the clamping device 2 according to FIG. 1, wherein only the technical differences from the first embodiment are to be discussed below, while all other technical features substantially correspond to the first embodiment.
  • the embodiments according to FIGS. 2 and 3 differ from the first embodiment shown in FIG. 1 in the embodiment of the manually operable handle 16.
  • the handle 16 is a kind of strip-shaped
  • the fixed plate 24 is formed with a corresponding longitudinal groove 28 which is aligned with the longitudinal groove 26 in the thrust element 18.
  • the longitudinal groove (s) 24, 26 is (are) dimensioned so that the buckle 16 at
  • the handle 16 can also consist of a plate-shaped flap which, when folded over into its tensioned end position (see the left-hand illustration in FIG. 3, the tube receiving compartment 1
  • FIG. 4 corresponds in principle to the embodiments described above, in which case, however, the handle 16 is in the form of a toggle lever. Specifically, the toggle 16 is so on
  • the toggle lever 16 is formed with an eccentric or a cam 16a, which presses against the thrust element 18 when the lever 16 is turned and displaces it in the closing direction against the inserted tube 20. Since the toggle lever 16 has no coupling with the pusher element 18, but only applies against a rear edge 18a, a spring (not shown) is presently provided, which the thrust element 18 in the opening direction (relaxed end position according to the right representation in FIG 4). Also, the toggle 16 is positioned so that when reaching its cocked end position (see left illustration in Fig. 4) has exceeded a (top) dead center of the cam 16a and thus automatically held in this position.
  • FIG. 5 thus shows a fifth embodiment of the invention as a simple construction for implementing the aforementioned alternative
  • the pump head 6 as shown in FIG. 5, left view rotatably mounted in the hose receiving compartment 1 (stationary) and is not further from a
  • Hose receiving compartment 1 is semicircular around the pump head 6
  • Pump head 6 forms a kind of U-shaped receiving shaft or groove 1 a.
  • a bar-shaped receptacle 30 is mounted in the tube receiving compartment 1, such that the substantially tangential to the pump head 6 aligned beam 30 is displaceable in its transverse direction.
  • the substantially tangential to the pump head 6 aligned beam 30 is displaceable in its transverse direction.
  • a bar-shaped receptacle is in the hose receiving compartment 1 in the sliding direction of the beam 30 extending longitudinal slot 32 worked through which a hebeiförmige handle 16 extends therethrough, which is formed at its free projecting end to a button.
  • the handle 16 is pivotally mounted at its other, not visible end in the pump housing 4. In an axial center portion of the hebeiförmigen handle 16, this has not shown in detail
  • Carrier element which is in operative engagement with the bar-shaped receptacle 30 to transform a pivoting movement of the handle 16 with a corresponding reduction of the lever mechanism thus produced in a sliding movement of the beam 30.
  • the hose unit 14 also has two axially spaced collar-shaped brackets 22 which with
  • Hose center portion 20a between the brackets 22 bulges out into a U-shaped loop when the brackets 22 and the hose 20 in the bar-shaped hose receptacle 30 at the notches 12 inserted / inserted.
  • the loop here has a mean radius, which is approximately the U-shaped
  • Receiving shaft 1 a to the pump head 6 around corresponds, so that the hose middle section 20a can be placed around the pump head 6 with almost no effort in untensioned state.
  • the handle 16 is actuated, i. in the present case pivoted away from the pump head 6 and thus pushed the bar-shaped receptacle 30 away from the pump head 6.
  • the hose center portion 20a engages with a predefined clamping force on the partial circumference of the pump head 6, as shown in the right-hand illustration of FIG. 5.
  • the handle 16 is dimensioned such that it shortly before reaching its exciting end position (see right illustration in Fig. 5) exceeds a dead center, whereupon the clamping force of the tube 20, the handle 16 holds in this exciting final position.
  • the fifth embodiment of the invention according to FIG. 5 has a
  • the button described above is replaced by a plate-shaped flap, which is articulated via a hinge, not shown, on the pump housing 4 and via a kind of plunger member 34 with the bar-shaped receptacle 30 is operatively connected.
  • the plunger member may in the present case consist of a rod frame, which at a certain middle position to achieve a lever effect on the pivotable flap 16 and on the receptacle 30 is hinged.
  • the plunger member 34 may be two laterally on
  • Hose receptacle 1 slidably mounted push rods, which are coupled via a lever or gear mechanism with the handle 16 to transform a pivotal movement of the handle 16 in a sliding movement of the push rods.
  • Clamping device with lever mechanism 2 is substantially the same as in the fifth embodiment. That the pivoting movement of the plate-shaped flap 16 is over the
  • Plunger member 34 is transformed into a sliding movement of the bar-shaped receptacle 30, but at the same time for tensioning the hose unit 14 (see middle view of FIG. 6), the flap-like handle 16 the
  • Hose receiving compartment 1 with reaching the exciting end position according to the right representation in Fig. 6 substantially completely covers. Also in this case, the clamping device 2 is provided with a self-locking, as has already been described above with reference to the fifth embodiment.
  • the handle / actuator can not necessarily be manually operated but also motorized.
  • Such an engine can basically be used in all embodiments already described in order to apply an actuating force to the handle / actuating element, for example via a toothed gear or a piston.
  • the use of a motor drive also allows a modification of
  • the cover plate 16 has a receptacle for the hose unit 14 on consisting of two spaced notches 12 which are aligned with each other and into which the hose unit 14 can be inserted in an undercut manner by means of holders / engagement elements 22 fixed thereto (see the right-hand illustration in FIG. 7).
  • the distance between the two brackets 22 is selected so that the tube 20 in the inserted but still unstressed state substantially follows the alignment line between the notches 12.
  • the drive is presently formed by an electric motor, not shown, which is operatively connected via a lever mechanism consisting of eccentric / cam and plunger member with the cover plate 16.
  • a lever mechanism consisting of eccentric / cam and plunger member with the cover plate 16.
  • Lever mechanism in this case for displacing the hose holder 14 and the hose receptacle 30, shown in more detail in perspective.
  • the clamping device is shown in the open position.
  • the lever mechanism may possibly also be provided for the displacement of the pump head instead of the hose holder.
  • the actuating element of the lever mechanism is the pivotally mounted on the hose receiving compartment / pump housing protective cap or 16 (could also be a swivel bracket), with which at the same time
  • Locking device 40 preferably arranged in the form of a spring clamping / - snap device, which can further preferably form an undercut acting in the opening - movement direction of the actuating element 16.
  • the clamping / locking device 40 on one side of the protective flap 16 of the lever mechanism has two strip-shaped, mutually parallel projections 42 extending from the back of the protective flap 16 in the direction of the
  • clamping action or they have at their respective free (front) edge on at least one undercut to approximately in the form of a bead (clamping and / or locking action).
  • clamping / locking device 40 may also be otherwise designed, such as in the form of a mushroom-shaped base or the like pressure / locking buttons.
  • the two plungers 34 are hinged according to FIG. 9 on both sides, whose free ends on the relative to the rotatable pump head. 6
  • the tube receptacle 30 is in the form of a bar or Rahmes formed with a driver / latching hook 46 which projects transversely to the direction of displacement at a central portion of the frame 30.
  • the sliding path of the frame 30 in the hose tensioning direction is limited by a stop or abutment projection 48 in the hose receiving compartment 1 of the
  • the (separate) hose unit 14 according to FIGS. 1 1 and 12 comprises the flexible / elastic hose (20) and the hose holder (22), which in this case is bar-shaped and has a respective one at its free ends
  • Connection nipple 50 has, to which the two hose ends are shot to form a hose loop. Furthermore, the two connection nipples 50 also form a connection possibility for two external connection hoses (not shown further).
  • a transversely projecting tab 52 is formed, which initially serves as a handle (handle) for easy installation and removal of the hose unit 14 in / from the hose receiving compartment 1. However, this tab 52 is arranged so that after insertion of the
  • the tab 52 can either without surface structure (only to achieve a clamping action) or with an undercut (to achieve a
  • a latching edge 54 is formed, which can be locked / locked (clipped) to the catch / latching hook 46 of the frame 30 when the bar-shaped hose holder 22 is inserted into the latching bar or frame-shaped hose receptacle 30. is clipped.
  • open cover 16 also corresponds to the
  • Hose receptacle or the frame 30 is inserted.
  • the undercut 54 locks / clips on the side of the hose holder 22 with the driver / Latching hook 46 on the side of the frame 30 elastic, so removing the
  • Hose bracket 22 from the frame 30 is difficult to overcome overcoming the elastic latching is possible. At the same time pushes the driver / latching hook 46 in
  • Hose tensioning direction on the hose holder 22 D.h. If the frame 30 is displaced over the lever mechanism in the hose tension direction, the driver / latching hook 46 presses on the hose holder 22 in order to guide it.
  • the driver / latching hook 46 presses on the hose holder 22 in order to guide it.
  • Loop-shaped hose 20 is thereby guided on both sides of the driver hook 46 in this direction in the direction of the pump rotor 6, as shown in particular in FIG. 9.
  • cover flap 16 as an actuating element for clamping the
  • Hose 20 and folded over to close the receiving compartment 1 (see Fig. 10), the frame 30 is moved simultaneously with entrainment of the bar-shaped hose holder 22 in the hose tensioning direction and the hose 20 elastically tensioned around the pump rotor 6 (in the longitudinal direction stretched).
  • the tab 52 Upon reaching the maximum hose clamping position of the cover 16, the tab 52 is inserted on the hose holder 22 in the gap 44 between the clamping / locking strips 42 on the side of the cover 16 and clamped therein and / or locked. At the same time the tube holder 22 beats on
  • Stop projection 48 of the receiving compartment 1 or comes to lie in the immediate vicinity of the stop projection 48, such that a further pushing the
  • Hose holder 14 in the hose tensioning direction (substantially) is prevented.
  • Hose bracket 22 (against folding) held, which is for this purpose with the clamping / latching device 40 on the back of the cover 16 in engagement.
  • Hose holder 22 in turn is the driver / latching hook 46 at the Hose receptacle / frame 30 (part of the lever mechanism) in
  • the stop projection 48 is provided which prevents further displacement of the tube holder 22 (away from the driver / latching hook 48) in maximum tube tensioning device or even the tube holder 22 against the driver / latching hook 48 presses.
  • the present invention relates to a peristaltic pump
  • a pump housing in which a hose receiving compartment 1 is formed / inserted, in which a pump head 6 is rotatably mounted and with a (separate) hose unit 14, the so in the hose receiving compartment 1
  • Pump head 6 comes in these at least partially spanning engagement.
  • a tensioning device is arranged on the pump housing or hose receiving compartment 1, which cooperates with the hose unit 14 or the pump head 6 to tension the hose 20 around the pump head 6 when actuated.
  • the tensioning device has a lever mechanism, wherein preferably a lever element 16 of the lever mechanism simultaneously
  • Protective cap for at least partially covering the tube receptacle 30 / the tube receiving compartment 1 forms or has.
  • a lever element preferably the protective / cover flap

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne une pompe péristaltique médicale comprenant un carter de pompe, dans lequel est formé un compartiment de logement du tuyau et dans lequel une tête de pompe fixe est montée de manière à pouvoir tourner. Ladite pompe comprend également un ensemble tuyau prévu de préférence sous la forme d'un élément remplaçable et constitué d'un tuyau flexible et d'un support de tuyau flexible en forme de poutre qui maintient le tuyau en forme de boucle en deux emplacements écartés dans le sens de la longueur du tuyau. L'ensemble tuyau est ou peut être installé dans le compartiment de logement de tuyau de telle manière que sous l'effet du déplacement du support de tuyau, le tuyau vient en prise par serrage avec la pompe en l'entourant au moins en partie. Selon l'invention, un dispositif de serrage se présentant sous la forme d'un mécanisme à levier est agencé dans le carter de pompe ou dans le compartiment de logement du tuyau, et déplace le support de tuyau en le serrant au moyen d'au moins un élément levier qui est muni d'un dispositif d'encliquetage ou de blocage formant de préférence une contre-dépouille qui, une fois atteinte une position de serrage du tuyau, vient en prise avec un dispositif d'encliquetage/de blocage complémentaire agencé sur le support de tuyau pour verrouiller le support de tuyau et le dispositif de serrage dans leur position de serrage du tuyau.
EP13753167.9A 2012-08-30 2013-08-21 Logement de tuyau flexible pour pompe à galets Active EP2890895B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17210339.2A EP3324047B1 (fr) 2012-08-30 2013-08-21 Dispositif de reception de tuyau d'une pompe aux rouleaux.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012108052.6A DE102012108052A1 (de) 2012-08-30 2012-08-30 Schlauchaufnahme einer Rollerpumpe
PCT/EP2013/067368 WO2014033023A2 (fr) 2012-08-30 2013-08-21 Logement de tuyau flexible pour pompe à galets

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP17210339.2A Division EP3324047B1 (fr) 2012-08-30 2013-08-21 Dispositif de reception de tuyau d'une pompe aux rouleaux.
EP17210339.2A Division-Into EP3324047B1 (fr) 2012-08-30 2013-08-21 Dispositif de reception de tuyau d'une pompe aux rouleaux.

Publications (2)

Publication Number Publication Date
EP2890895A2 true EP2890895A2 (fr) 2015-07-08
EP2890895B1 EP2890895B1 (fr) 2019-11-13

Family

ID=49035581

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17210339.2A Active EP3324047B1 (fr) 2012-08-30 2013-08-21 Dispositif de reception de tuyau d'une pompe aux rouleaux.
EP13753167.9A Active EP2890895B1 (fr) 2012-08-30 2013-08-21 Logement de tuyau flexible pour pompe à galets

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17210339.2A Active EP3324047B1 (fr) 2012-08-30 2013-08-21 Dispositif de reception de tuyau d'une pompe aux rouleaux.

Country Status (6)

Country Link
US (1) US10060425B2 (fr)
EP (2) EP3324047B1 (fr)
JP (1) JP6234459B2 (fr)
DE (1) DE102012108052A1 (fr)
HU (1) HUE047768T2 (fr)
WO (1) WO2014033023A2 (fr)

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US10578096B2 (en) 2016-06-30 2020-03-03 Cole-Parmer Instrument Company Llc Peristaltic pumphead and methods for assembly thereof
DE102016009174B3 (de) * 2016-07-29 2017-11-02 W. O. M. World of Medicine GmbH Schlauchkassette für eine peristaltische Pumpe mit elastischen Schenkeln
JP6981996B2 (ja) * 2016-12-01 2021-12-17 サラヤ株式会社 ディスペンサ
JP7222355B2 (ja) * 2017-09-26 2023-02-15 ニプロ株式会社 チューブセット、及びそれを備えるチューブポンプ
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CN114992108B (zh) * 2022-05-19 2023-12-15 中国科学院沈阳计算技术研究所有限公司 一种旋转式水泵参数测量装置
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Also Published As

Publication number Publication date
US20150204321A1 (en) 2015-07-23
JP2015526648A (ja) 2015-09-10
US10060425B2 (en) 2018-08-28
EP3324047A3 (fr) 2018-08-15
DE102012108052A1 (de) 2014-03-06
WO2014033023A3 (fr) 2014-07-31
JP6234459B2 (ja) 2017-11-22
EP2890895B1 (fr) 2019-11-13
WO2014033023A2 (fr) 2014-03-06
EP3324047A2 (fr) 2018-05-23
HUE047768T2 (hu) 2020-05-28
EP3324047B1 (fr) 2019-10-02

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