Pump device and pump assembly having at least one pump device
By separating the pump drive mechanism and pump head and transmitting driving force with magnetic components, the problems of operation difficulty and contamination risks of traditional pump devices in the clean room are solved, and the effects of simplified operation and efficient maintenance are achieved.
Patent Information
- Application Number
- CN202380050821.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-07
- Filing Date
- 2023-06-27
- Publication Date
- 2025-02-28
AI Technical Summary
When handling pharmaceutical products, especially toxic or highly toxic products, traditional pump devices are difficult to operate in a clean room, and are time-consuming to maintain and modify, which can easily lead to contamination.
A pump device is designed in which the pump driving mechanism is outside the cavity and the pump head is located inside the cavity. The driving force is transmitted through the partition element through the magnetic assembly to achieve the holding and driving of the pump head.
Simplified operation in clean rooms, ensure compliance with hygiene standards, reduce the risk of contamination, and can be quickly maintained and cleaned when needed.
Smart Images
Figure CN119546854A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a pump device, in particular for medicinal products, comprising a pump drive and a pump head. Background Art
[0002] For example, pump devices of this type are used in machines for processing liquid pharmaceutical products. The product is transported via a hose line and supplied to a filling station, where it is filled into a pharmaceutical container, such as a vial, syringe, cartridge or ampoule, via a filling element, such as a needle. When processing pharmaceutical products, very high hygiene standards are generally applied, for example in terms of sterility, cleanability, material wear, etc. Therefore, pump devices are usually traditionally arranged in clean rooms and can comply with the hygiene standards for clean rooms. However, it is difficult to operate pump devices in clean rooms because the clean rooms cannot be accessed or are difficult to access. For this reason, modification and maintenance or adaptation tasks are time-consuming and interrupt the manufacturing chain.
[0003] When handling toxic or even highly toxic products, there is also the risk of contamination of the pump device in the event of improper handling or technical faults, since in this case the product could overflow the hose line in an undesirable manner and come into contact with the pump device. Summary of the invention
[0004] The object of the present invention is to provide a pump device, in particular for pharmaceutical products, with which hygiene standards can be complied with in a simple manner during preferably simplified operation.
[0005] This object is achieved by a pump device according to the present invention, especially for pharmaceutical products, which comprises a pump drive mechanism and a pump head, wherein the pump drive mechanism comprises a drive unit, a drive body that can be driven by the drive unit in a manner that rotates around a drive axis, and a support body for directly or indirectly supporting on a partition element, the partition element is especially a partition wall, wherein the pump head comprises a base body for supporting on the partition element, a hose receiving portion for receiving a hose pipeline that guides the product, a pump actuator for acting on the hose and a driven body that can rotate around a driven axis and is operatively connected to the pump actuator, wherein the pump drive mechanism and the pump head can be supported on sides of the partition element that face away from each other, and wherein the drive body and the driven body comprise corresponding magnetic components having magnetic elements that interact to transmit the driving force of the drive unit to the pump actuator via the partition element.
[0006] The pump device according to the invention has in particular two components, namely a pump drive and a pump head. In the conventional use of the pump device discussed below, the pump drive and the pump head are spaced apart from each other, wherein a partition element, such as a partition wall, can be arranged between them. The partition element can optionally be a component of the pump device. In conventional use, the pump drive and the pump head are in particular supported directly or indirectly on the sides of the partition element facing away from each other. The driving force can be transmitted via the magnetic component of the driver and the driven body across the partition element.
[0007] The present invention takes into account that when handling pharmaceutical products, in particular toxic or highly toxic products, it is desirable to position as few components as possible in the cavity of a filling machine, wherein the cavity in particular forms a clean room. The present invention provides the possibility of positioning a pump drive mechanism outside the cavity and positioning a pump head inside the cavity, wherein the wall of the cavity forms a partitioning element. In this way, the partition between the clean room and the outside of the cavity can be ensured in a structurally simple manner, and the partition can also be realized in a specific manner in the pump device. For example, for maintenance purposes, the pump drive mechanism can be arranged outside the cavity in an easily accessible manner together with the attached cable. The pump head for conveying the product is arranged in the cavity and receives a hose line, through which the product can be conveyed by means of a pump actuator. The driving force can be transmitted across the wall by means of magnetic force.
[0008] The invention also offers the advantage that in the event of possible contamination by spilled product, only the pump head is affected, while the pump drive mechanism remains intact.
[0009] Advantageously there is the possibility of constructing a pump head for disposable use (single use) for processing a specific product. When changing the product, for example, the pump head can be replaced by a different type of pump head.
[0010] Advantageously, the pump device may be used in any orientation with reference to the direction of gravity.
[0011] It may prove advantageous that the pump head can be held on the pump drive via interacting magnetic elements across a separation element. Thus, the magnetic assembly not only provides the possibility of transmitting the drive force to the pump actuator, but also provides the possibility of exerting a holding force on the pump head.
[0012] It is particularly preferably provided that the pump head is not connected to the partition element and can be held at the partition element only via the magnetic element. This allows a structurally simple design to be achieved, in which a connecting element for connecting the pump head to the partition element can be omitted. The pump actuator is thus driven and the pump head is held via the magnetic component, and the connection between the pump drive and the pump head is thus ensured across the partition element. Preferably, the pump device in this embodiment can even be held at a vertically oriented partition element, wherein, for example, the pump drive and the pump head protrude horizontally from the partition element.
[0013] The magnetic assembly is, for example, constructed as a multi-pole assembly, in which the driver and the driven body can be connected to each other in a plurality of angular relative positions relative to the axis when the drive axis and the driven axis are aligned. For example, this facilitates the operation of the pump device. The magnetic elements are arranged at the driver and the driven body with reference to the axis so that more than only one relative position of the two bodies can be taken to ensure the connection. For example, two or more relative positions can be considered. In an exemplary embodiment, it can be provided that the type and arrangement of the magnetic elements at the driver and the driven body are repeated at corresponding angular distances of 120°, 90°, 72° or 60°, so that, for example, there can be three, four, five or six angular relative positions, in which the driver and the driven body can be connected to each other accordingly. Other angular distances other than the angular distances mentioned here as an example can be considered.
[0014] It can be advantageous if the pump head is held on the pump drive via the magnetic assembly via the separating element in any angular relative position to the axes when the drive axis and the driven axis are aligned. For example, it is conceivable that the pump head only "docking" at the separating element in a suitable orientation of the axes and the holding and transmission of the drive force are ensured by the magnetic engagement of the magnetic assemblies with one another. It is desirable here that the pump head has any orientation in view of the particularly diverse uses of the pump device.
[0015] In a preferred embodiment of the present invention, the magnetic components are each designed as a Halbach array of magnetic elements. It has been shown in practice that a reliable mutual connection of the magnetic components can be ensured in this way.
[0016] It has proven to be advantageous if the pump head has a design adapted for pharmaceuticals, in particular for use in clean rooms with toxic or highly toxic pharmaceutical products.
[0017] Advantageously, the pump head can be cleaned in a non-destructive manner with a cleaning liquid, in particular with water. The invention preferably enables WIP (cleaning in place) applications. For example, between individual production cycles, the cavity receiving the pump head is cleaned by cleaning with a cleaning liquid. The pump head can be cleaned together and does not have to be removed from the cavity. This facilitates handling and helps to keep downtimes as short as possible.
[0018] Advantageously, the pump head can be sterilized in a non-destructive manner, for example in a steam sterilization chamber and / or by radiation sterilization.
[0019] For example, the pump head can include a shaft, which is connected to the driven body and the pump actuator in a torsionally fixed manner. Forces can be transmitted from the driven body to the pump actuator via the shaft, which defines the driven axis, for example.
[0020] Preferably, the driven body and / or the shaft are supported on the base body via at least one support element in a manner that they can rotate about the driven axis. In this way, a durable and reliable function of the pump head is ensured. It is conceivable to use rolling bearings and / or sliding bearings. For example, radial deep groove ball bearings are used. In a preferred embodiment, the support element surrounds the driven body and is supported on a shoulder of the base body.
[0021] It can be advantageous if the base body comprises or forms a frame and / or a bottom wall, the base body forming an edge close to the pump drive that can abut against the partition element, wherein the frame surrounds a receiving space for accommodating the driven body. The base body can be supported at the partition element via the edge and / or the bottom wall. The driven body is arranged within the frame. Preferably, the frame is closed along the entire circumference around the receiving space, thereby protecting the driven body from external influences. For example, the bottom wall can lock the receiving space close to the partition element. The edge and / or the bottom wall are preferably designed to be planar for abutting against the partition element in a planar manner.
[0022] The base body advantageously comprises a covering element which covers the receiving space on one side of the pump actuator, wherein the driven body or a shaft connected to the driven body penetrates through the through-opening of the covering element and is connected to the pump actuator on the side of the frame facing away from the receiving space. For example, the driven body is separated from the following spatial region on the base body via the covering element, in which or in which the pump actuator and the hose line are arranged. Preferably, this makes it possible to limit contamination of this spatial region in the event of product spillage and avoid contamination of the driven body. For example, the covering element is designed as a top wall, which extends over the entire opening of the frame.
[0023] At least one sealing element is preferably provided for sealing between the cover element and the frame.
[0024] Alternatively or additionally, at least one sealing element is preferably provided for sealing between the output body or the shaft and the edge of the through-opening.
[0025] Advantageously, the driven body is spaced apart from the bottom wall of the base body or, when the pump head is in contact with the partition element, is spaced apart from the partition element via a gap. This can be achieved, for example, by the driven body being held behind a contact plane of the base body defined by the above-mentioned edge, or by a gap being provided between the driven body and the bottom wall. As a result, the driven body can rotate in a frictionless manner without contact with the partition wall or the bottom wall. The gap is preferably narrow, in particular less than about 2 mm, preferably less than about 1 mm.
[0026] In a preferred embodiment of the invention, the driven body has a receiving element and a connecting element connected to the receiving element near the separating element, the receiving element comprising a plurality of receiving portions for the magnetic element, and the connecting element is directly or indirectly connected to the pump actuator. This preferably provides the possibility of a simple structural adaptation or scaling of the pump device. For example, various types of receiving elements can be provided, which differ from one another in view of the magnetic components and can be used, for example, for different applications of the pump device, in particular in the case of separating elements of different thicknesses.
[0027] The connecting element is connected, for example, to the above-mentioned shaft, in particular via a clamping bushing. Alternatively, the connecting element can be connected, for example, directly to the pump actuator.
[0028] Advantageously, the receiving element is connected to the connecting element in a detachable manner and can preferably be separated from the connecting element from a side facing away from the connecting element. Thus, the receiving element can be accessed in an operator-friendly manner.
[0029] The magnetic element is advantageously arranged in a form-fitting manner in the receptacle and is held therein, in particular by crimping and / or by gluing.
[0030] To protect the magnetic elements, it can be provided that they cover the receptacles on at least one side and preferably on both sides via a covering element.
[0031] The receiving element and / or the connecting element are advantageously designed as a disk or annular, wherein the magnetic element is arranged in the circumferential direction of the driven axis. In the case of an annular design, the mass of the driven body can be kept relatively low. The arrangement of the magnetic element in the ring in the circumferential direction of the driven axis makes it possible to achieve sufficiently high torques in a compact configuration.
[0032] The structure of the pump drive will be discussed below based on a preferred embodiment of the present invention.
[0033] The pump drive mechanism preferably comprises a shaft which is rotatably supported at the support body via at least one bearing element, which is connected to the drive body in a torsion-free manner and is coupled to the drive shaft of the drive unit via a coupling element, or is included in the drive unit. For example, the support body forms a one-piece or multi-piece block with at least one bearing element for reliably supporting the shaft. The shaft can be formed as a drive shaft of the drive unit or can be formed separately from the drive unit.
[0034] For example, two bearing elements spaced apart from one another in the axial direction are provided for particularly secure bearing of the shaft.
[0035] At least one bearing element can be or include a rolling bearing or alternatively a sliding bearing. For example, a radial deep groove ball bearing and / or a radial thrust ball bearing can be used as a rolling bearing.
[0036] In one embodiment of the invention, it can be provided that the support body is attached or attachable directly to the separating element.
[0037] In a different type of embodiment of the invention, it can be provided that the support body is or can be attached to the partition element indirectly via at least one retaining member and can thus be supported indirectly on the partition element. For example, the retaining member is firmly connected to the partition element and provides the possibility of attachment for the support body. For example, the connection of the retaining member to the partition element can be achieved by screwing. In a preferred embodiment, the connection between the retaining member and the support body is achieved by screwing.
[0038] Preferably, the support body is detachably mounted or attachable to the retaining element in the case of indirect fastening to the partition element or detachably mounted or attachable to the partition element in the case of direct fastening to the partition element. This provides, for example, the possibility of simple installation or removal, for example for maintenance purposes. It is also conceivable that the retaining element provides a universal platform for various types of pump drives, which can optionally be connected to the partition element.
[0039] The at least one holding element is, for example, or comprises a support, against which the support body rests and which is connected to the partition element, wherein the drive body is positioned laterally next to the at least one holding element and projects beyond the end of the support body facing away from the drive unit. When the support body is removed from the at least one holding element, the drive body can thereby be easily accessed, for example for maintenance purposes. For example, two or more holding elements are provided, between which the driven body is positioned and thereby better protected from external influences.
[0040] It can be provided that the support body comprises or forms a flange on the side facing away from the drive body and rests against the housing of the drive unit via the flange, wherein the shaft of the pump drive extends in the through-opening of the support body. The drive unit is connected to the flange, for example, in a detachable manner, whereby the components of the pump drive can be used in a variety of ways. For example, different drive units can be combined with the same support body as required. Within the through-opening, for example, the shaft of the drive unit, the above-mentioned coupling element and the shaft connected to the drive body are arranged.
[0041] Advantageously, in the state in which the pump drive is connected to the partition element, the drive body is spaced apart from the partition element via a gap. The advantages of this type of design have already been discussed in connection with the pump head. For example, the contact plane defined by at least one retaining element or support body protrudes beyond the drive body, which is held behind the contact plane.
[0042] The width of the gap is advantageously less than about 2 mm, still more preferably less than about 1 mm.
[0043] The drive body can preferably include a receiving element near the separation element, which includes a plurality of receiving portions for the magnetic element, and a connecting element connected to the receiving element, which is connected to the drive unit and is especially connected to the shaft in a non-twisting manner. The advantages and preferred design solutions of the receiving element and the connecting element have been discussed in conjunction with the driven body. Reference can be made to the above content.
[0044] The receiving element is advantageously detachably connected to the connecting element and can preferably be separated from the connecting element from a side facing away from the connecting element.
[0045] The magnetic element is arranged in the receptacle, for example, in a form-fitting manner and is held therein, in particular by crimping and / or gluing.
[0046] A covering element may be provided on at least one side in order to close the receiving portion and cover the magnetic element, and preferably two covering elements may be provided.
[0047] The receiving element and / or the connecting element is preferably designed in a disk-shaped or annular shape, wherein the magnetic element is arranged in the circumferential direction of the drive axis.
[0048] It can be provided that the receiving elements of the drive body and the output body are designed as identical parts. This simplifies the design of the pump device.
[0049] In a preferred embodiment of the invention, the pump device is a peristaltic pump, wherein the hose receiving part comprises a groove-shaped recess for the hose line, and wherein the pump actuator is arranged within the hose receiving part and comprises at least one pressure element, which is pressed into engagement with the hose line when rotating about the driven axis. For example, the hose line is inserted into the groove-shaped recess extending about the driven axis, wherein the pump actuator is arranged radially within the hose line. When the pump actuator rotates, the at least one pressure element presses the hose line and thereby conveys the product.
[0050] It can be provided that the pump actuator comprises a plurality of pressure-applying elements. The pressure-applying elements are advantageously spaced apart from one another at equal angular distances relative to the driven axis.
[0051] The at least one pressure element is, for example, a roller body which is mounted on the rotor of the pump actuator so as to be rotatable about an axis of rotation which is aligned parallel to the output axis.
[0052] Advantageously, the pump actuator and / or the hose receiving portion are held in a detachable manner at the pump head. This makes it possible to replace the pump actuator and / or the hose receiving portion depending on the application and requirements without having to replace the entire pump device or even the entire pump head.
[0053] The pump device can be, for example, a single hose pump or a multi-hose pump (eg, a double hose pump). For this purpose, the hose receiving portion can be configured to receive a hose or two or more hoses, wherein the hoses can be inserted into the pump head, for example, one above the other in the axial direction.
[0054] For example, the pump head can include a cover body that can be transformed from a closed position to an open position and vice versa, which covers the pump actuator and / or the hose receptacle in the closed position and releases them in the open position. In use, the cover body in particular adopts the closed position to protect the hose receptacle and the pump actuator. For example, in order to replace the pump actuator and / or the hose receptacle, the cover body can be transformed into the open position. Advantageously, the cover body can be opened and closed manually and / or in a tool-free manner.
[0055] In an exemplary embodiment of the invention, it can be provided that the pump device comprises a plurality of pump heads, which can optionally be coupled to a pump drive. As a result, the pump device has a high degree of diversity, wherein the pump heads can in particular be different from one another in order to enable the pump device to be adapted to the respective application. The respective pump heads can be coupled to the pump drive via a magnetic assembly, in particular via a partition element.
[0056] According to this disclosure, the pump device according to the invention can in particular comprise at least one pump head, wherein a plurality of pump heads are conceivable.
[0057] For example, various types of pump heads enable the pump device to be configured as a single hose pump or a multi-hose pump. For example, it can alternatively be provided that the pump head can be converted from a single hose pump to a multi-hose pump by replacing the hose receptacle and / or the pump actuator.
[0058] As mentioned at the outset, the invention also relates to a pump assembly.
[0059] The object of the present invention is to provide a pump assembly for use in a machine, in particular a filling machine for pharmaceutical products, or as a component of a machine of this type.
[0060] This object is achieved by a pump assembly according to the invention, which comprises a chamber and at least one pump device of the above-mentioned type, the chamber comprising a wall portion forming a partition element and an inner space surrounded by the wall portion, wherein a pump drive mechanism is arranged outside the chamber and fixed to the wall portion, and wherein a pump head is arranged in the inner space and is operatively connected to the pump drive mechanism via a magnetic element.
[0061] The advantages already mentioned in conjunction with the explanation of the pump device according to the invention can also be achieved in the pump assembly according to the invention. Advantageous embodiments of the pump device according to the invention result in advantageous embodiments of the pump assembly according to the invention. In this regard, reference is made to the above-described embodiments.
[0062] The chamber can in particular be a clean room chamber, wherein the interior space has a higher degree of sterility than the exterior space surrounding the chamber. When filled with pharmaceutical substances, the clean room chamber can, for example, have clean room class A according to Annex 1 of the EG-GMP guidelines. BRIEF DESCRIPTION OF THE DRAWINGS
[0063] The following description of the preferred embodiments of the present invention is used to explain the present invention in more detail in conjunction with the accompanying drawings. In the accompanying drawings:
[0064] Figure 1 shows a schematic diagram of a filling machine for pharmaceutical products, comprising a pump assembly according to the invention having a pump device according to the invention;
[0065] Figure 2 A perspective view showing a preferred embodiment of a pump device according to the present invention;
[0066] Figure 3 A partial view of the pump assembly is shown along the Figure 2 A cross-sectional view taken along line 3-3 in FIG.
[0067] Figure 4 Shows Figure 3 An enlarged view of detail A in FIG.
[0068] Figure 5 Shows the corresponding Figure 4 A view with the cutting plane along Figure 3 The line 5-5 in the middle is extended;
[0069] Figure 6 A partial view is shown Figure 2 Exploded view of the pump unit in FIG.
[0070] Figure 7 Shows Figure 2 A three-dimensional view of a receiving body and a covering element of a pump device in FIG. 1 ; and
[0071] Figure 8 The schematic diagram shows a pump device according to the invention in a preferred embodiment. DETAILED DESCRIPTION
[0072] Figure 1 A filling machine is shown schematically and is designated overall by the reference number 100. The filling machine 100 is provided for processing schematically shown medical containers 102. The containers 102 are, for example, vials, syringes, cartridges or ampoules.
[0073] The filling machine 100 comprises a plurality of processing stations 104, which in the present case comprise in particular a filling station 106. The containers 102 are filled with a medicinal product in liquid form at the filling station 106. For this purpose, the filling station 106 comprises a filling element 108, for example in the form of a needle.
[0074] In the present preferred embodiment, for supplying the product, the filling machine 100 comprises a pump assembly 110 according to the invention. The pump assembly 110 itself comprises at least one pump device 112 according to the invention. Currently, for example, four pump devices 112 are provided, wherein this number is not limiting.
[0075] The pump assembly 110 further comprises a partition element 114. The partition element 114 is in the present case formed by a wall 116 at the filling machine 100. The wall 116 surrounds an interior space 118, in which the processing station 104 is arranged, and separates an exterior space 120 from the interior space 118.
[0076] The pump assembly 110 includes a cavity 122 having a wall 116 and an interior space 118 in the manner described above. The cavity 122 is currently a clean room cavity (eg, having clean room class A) having a higher degree of sterility than the exterior space 120.
[0077] For example, the filling machine 100 is configured and equipped for handling toxic or highly toxic pharmaceutical products, which have high hygiene requirements. Therefore, it is expected that the product does not leave the cavity 122. In the event of product spillage, possible damage should be limited as much as possible to the components of the filling machine 100 that are arranged within the cavity 122.
[0078] For example, the wall portion 116 is made of a material compatible with medicine, in particular stainless steel. Preferably, the wall portion 116 has a wall thickness of about 1 to 3 mm.
[0079] The embodiment of the pump device 112 according to the invention will be discussed below.
[0080] The pump device 112 includes a pump drive mechanism 124 and a pump head 126. The pump device 112 is designed so that the pump head 126 is formed to be spatially separated from the pump drive mechanism 124, and when the pump device 112 is used in a conventional manner, the pump head 126 is operatively connected to the pump drive mechanism via a magnetic assembly explained below.
[0081] The pump head 126 is designed as a whole to be compatible with medicine and can preferably be sterilized in a non-destructive manner and / or can be cleaned with a cleaning fluid, in particular water.
[0082] The pump head 126 is arranged in the interior space 118 and, as described below, bears against a wall 116 which forms a partition wall 117 between the pump head 126 and the pump drive 124 .
[0083] A bag-shaped storage container 128 for storing the product to be filled is arranged in the interior 118. The product is supplied to the pump head 126 via a fluid line, in the present case designed as a hose line 130. From the pump device 112, the product is further conveyed to the corresponding filling element 108 and filled there.
[0084] The pump device 112 is a peristaltic pump, in which the product is conveyed by squeezing a hose line 130 .
[0085] The pump drive 124 is arranged in the exterior space 120 and serves to drive the pump head 126 by means of a drive unit 132 which is in particular designed to be electric. The attachment line 134 is laid in the exterior space 120 in a sanitary and preferably easily accessible manner.
[0086] In the present case, the pump drive 124 comprises a support body 136 for indirect support at the partition wall 117 and for fastening the drive unit. The support body has, for example, a central through-opening 138. In the present case, the cross section of the support body 138 is rectangular, but different cross sections are also possible.
[0087] The support body 136 comprises a flange 142 near the drive motor 140 of the drive unit 132, and the drive motor 140 is in contact with the flange. The connection is achieved, for example, by screwing.
[0088] The support body 136 comprises two segments 144 , 146 in the present case. The first segment 144 comprises a flange 142 . The first segment 144 is connected in the direction of the partition wall 117 to a second segment 146 which forms a bearing body 148 .
[0089] The support body 136 is supported via a bearing body 148 on at least one holding element 150. In the present case, two holding elements 150 are provided which are spaced apart from one another.
[0090] The holding components 150 each form a seat 152 on which the support body 136 rests and via which the support body is indirectly supported at the partition wall 117. The connection between the support body 136 and the holding component 150 is realized, for example, by screwing. In particular, the connection is preferably detachable in order to separate the pump drive 124 from the partition wall 117, wherein the holding component 150 can remain connected to the partition wall 117. The connection of the holding component 150 to the partition wall 117 is realized, for example, by screwing.
[0091] A receiving space 154 is formed between the holding members 150 .
[0092] The drive unit 132 comprises a drive shaft 156 which defines a drive axis 158 . In the present exemplary embodiment, the drive shaft 156 is connected in a torsionally fixed manner via a coupling element 160 to a shaft 162 which is supported on the bearing body 148 so as to be rotatable about the drive axis 158 .
[0093] The shaft 162 is connected in a rotationally fixed manner to a drive body 164 of the pump drive 124, so that the drive body 164 as a whole can be rotated about the drive axis 158 by means of the drive motor 140. Reference numeral 166 refers to a clamping sleeve for connecting the shaft 162 to the drive body 164.
[0094] At least one bearing element, in the present case two bearing elements 168, 170 spaced apart from each other in the axial direction, is provided for supporting the shaft 162. The bearing element 168 is, for example, a radial thrust ball bearing and is in the present case close to the drive motor 140. The bearing element 170 is, for example, a radial deep groove ball bearing and is in the present case close to the partition wall 117.
[0095] Especially from Figures 5 to 7 It can be seen that in the present case the drive body 164 is designed in multiple parts.
[0096] The drive body 164 comprises a receiving element 172 on the side close to the partition wall 117 and a connecting element 174 on the side close to the drive motor 140. The connecting element 174 is connected to the shaft 162 via a clamping bushing 166.
[0097] The mutual connection of the receiving element 172 and the connecting element 174 is realized, for example, by screwing. The connection is preferably detachable, so that the receiving element 172 can be separated from the connecting element 174 when necessary. This is desirable, for example, for maintenance purposes and / or to adapt the pump device 112 to various types of tasks.
[0098] The receiving element 172 and the connecting element 174 are both annular in shape and are oriented coaxially with respect to one another.
[0099] The receiving element 172 is used to receive a magnetic assembly 176 including a plurality of magnetic elements 178. The magnetic elements 178 are arranged radially outwardly at the receiving element 172 and positioned in a receiving portion 180 formed there. For example, the fixing may be achieved by crimping and / or bonding.
[0100] A covering element 182 ( Figure 7 ), the covering element is used to cover the magnetic element 178 in the receiving portion 180. At present, covering elements 182 are provided on both sides of the receiving element 172 in the axial direction.
[0101] The magnetic elements 178 form a so-called Halbach array, so that the magnetic assembly 176 is a multi-pole assembly consisting of magnetic elements 178 .
[0102] As from Figure 7 It is further known from FIG. 1 that the pattern of magnetic elements 178 is repeated in the circumferential direction around the drive axis 158. Four repetitions are provided in the present case, so that a total of five identical assemblies of magnetic elements 178 are provided, each having an angular distance of 72° relative to the drive axis 158.
[0103] The arrangement of the magnetic elements 178 is as follows: starting from a first magnetic element 178 with the north pole and the south pole oriented in the axial direction, another magnetic element 178 is followed in the circumferential direction, in which the north pole and the south pole are oriented in the circumferential direction. The next magnetic element 178 has an opposite polarity in the axial direction relative to the first-mentioned magnetic element 178, and the fourth magnetic element 178 has an opposite polarity in the circumferential direction relative to the second-mentioned magnetic element 178.
[0104] Especially from Figures 3 to 6 As can be clearly seen in FIG. 1 , the pump head 126 comprises a base body 184. The base body 184 has a first section 186, the outer contour of which is essentially square, and a second section 188. The section 188 protrudes from the section 186 in a direction pointing away from the partition wall 117. The section 186 forms a frame 190. The frame 190 has an essentially rectangular cross section and surrounds a receiving space 192, which is closed on the side close to the partition wall 117 via a bottom wall 191.
[0105] The frame 190 comprises an edge 194 near the partition wall 117. The base body 184 rests against the partition wall 117 via the bottom wall 191 and the edge 194, in the present case in a flat manner.
[0106] The receiving space 192 is closed in a manner spaced apart from the bottom wall 191. For this purpose, the pump head 126 has a covering element 196. The covering element 196 currently forms the upper cover of the section 186 ( Figure 3 ).
[0107] A sealing element 198 , for example in the form of an O-ring, seals between the cover element 196 and the frame 190 .
[0108] A central through-opening 200 is formed in the cover element 196 .
[0109] A hose receptacle 202 for receiving the hose line 130 is arranged on the side of the base body 184 facing away from the receiving space 192. The hose receptacle 202 comprises a groove-shaped recess 204 into which the hose line 130 can be inserted, preferably in a form-fitting manner, while forming a loop. For this purpose, the hose receptacle 202 forms a frame 206 with an introduction opening 208 for the hose line 130.
[0110] The hose receptacle 202 can be placed on the section 186 and positioned laterally next to the protruding section 188 .
[0111] The pump actuator 210 of the pump head 126 is arranged radially inside the hose receptacle 202. The pump actuator 210 comprises a rotor 212 and at least one pressurizing element 214 held therein. In the present case, four pressurizing elements 214 are provided which are arranged at a uniform angular distance from one another.
[0112] The respective pressure element 214 is designed in the form of a roller and is mounted on the rotor 212 so as to be rotatable about an axis of rotation 216 .
[0113] The axis 216 is oriented in parallel with a driven axis 218 of the pump head 126. In conventional use of the pump device 112, the driven axis 218 is aligned with the drive axis 158 ( Figure 4 and Figure 5 ).
[0114] As will be described below, the pump actuator 210 can be rotated about the driven axis 218. Here, the pressurizing element 214 is brought into compression engagement with the hose line 130 in order to convey the medical product therethrough.
[0115] In order to transmit the driving force at the drive body 164 to the pump actuator 210, the pump head 126 comprises a driven body 220 which is operatively connected to the pump actuator 210. In the present case, the driven body 220 is connected in a torsionally fixed manner to a shaft 222 which defines the driven axis 218. The shaft 222 is itself connected in a torsionally fixed manner to the pump actuator 210.
[0116] A sealing element 223 , in the present case a shaft sealing ring, seals between the shaft 222 and the edge of the through-opening 200 .
[0117] Especially from Figures 3 to 5 It is known that the driven body 220 in this example has a receiving element 224 and a connecting element 226. For example, the connecting element 226 is connected to the shaft 222 via a clamping sleeve 228.
[0118] The receiving element 224 and the connecting element 226 are preferably connected to one another in a detachable manner, for example by being screwed together, and are presently oriented in a coaxial manner relative to one another.
[0119] In terms of function, the output body 220 is designed similarly to the drive body 164. In particular, the receiving elements 224 and 172 are functionally identical components in the present case, so that reference can be made to the above description in this regard.
[0120] In the case of the output body 220 , the receiving element 224 is also provided for receiving the magnetic assembly 230 having the magnetic element 232 . With regard to its design and arrangement in the receiving element 224 , reference is made to the above explanations.
[0121] The connecting element 226 is designed in annular shape in a manner corresponding to the connecting element 174 .
[0122] A bearing element 234 of the pump head 126 is provided in order to support the driven body 220 on the base body 184 . In the present case, a radial deep groove ball bearing is used as the bearing element 234 , which surrounds the connecting element 226 in an annular manner and is supported on a shoulder of the frame 190 .
[0123] Provision may be made for the shaft 222 to be alternatively or additionally supported via a bearing element so as to be rotatable relative to the base body 184 .
[0124] The output body 220 is arranged in the receiving space 192 in the present case. The frame 190 surrounds the receiving space 192 along the entire circumference. The output body 220 is protected from external influences by the frame 190 and the bottom wall 191 .
[0125] The driven body 220 is protected relative to the pump actuator 210 by the cover element 196 and the sealing element 198. In the event of a defect in the hose line 130, the medical product preferably does not enter the receiving space 192, so that it is advantageously not necessary to completely discard the pump head 126. For example, only the hose receptacle 202 and the pump actuator 210 can be discarded and replaced by new components.
[0126] In conventional use of the pump device 112, the pump drive mechanism 124 is supported at the partition wall 117. A gap 236 is formed between the partition wall 117 and the receiving element 172. The width of the gap 236 is preferably less than 1 mm. Due to the gap 236, friction between the receiving element 172 and the partition wall 117 is avoided.
[0127] The holding element 150 defines a contact surface of the pump drive 124 for contact with the partition wall 117 .
[0128] The base body 184 is supported in a corresponding manner via the edge 194 and the bottom wall 191 at the partition wall 117 on the side facing away from the pump drive 124. There is also a gap 236 between the bottom wall 191 and the receiving element 224 to avoid friction.
[0129] In the case of conventional applications, the driving force of the driving motor 140 is transmitted to the driven body 220 via the driving shaft 156, the shaft 162 and the driving body 164. For this purpose, the magnet assemblies 176 and 230 interact with each other via the partition wall 117 in a contactless manner.
[0130] In the pump device 112 , the partitioning between the sterile interior 118 and the less sterile exterior 120 is achieved to a certain extent by the partition wall 117 in that the pump head 126 is spatially separated from the pump drive 124 , but still allows the transmission of drive forces.
[0131] The driving force is transmitted to the pump actuator 210 via the driven body 220 and the shaft 222 .
[0132] Due to the periodic repetition of the arrangement of the magnetic elements 178, 232 in the circumferential direction of the axis 158, 218, the driver 164 and the driven body 220 can be coupled to one another in a plurality of angular relative positions relative to the axis 158, 218. There are currently five such angular relative positions.
[0133] Reference numeral 237 designates a schematically illustrated sensor element for detecting the angular position ( ) of the driven body 220 about the driven axis 218. Figure 3 and Figure 4). One sensor element 237 may be sufficient. This illustration is only symbolic. The sensor element 237 does not hinder the rotation of the drive body 164. For example, a magnetic element can be accommodated in the driven body 220, which can be detected by the sensor element 237 to determine the angular position.
[0134] Furthermore, it is particularly advantageous in the present invention that not only the drive force can be transmitted via the magnetic components 176, 230, but also the pump head 126 can be held on the pump drive 124 via the partition wall 117. In particular, no connecting elements are provided for securing the pump head 126 to the partition wall 117. This not only enables a structurally simple design of the pump device 112, but also enables improved operation.
[0135] For example, the pump drive 124 can remain mounted at the partition wall 117, while the pump head 126 can be separated from the partition wall 117 only against the magnetic force, for example for cleaning and maintenance purposes. If, on the other hand, the magnetic components 176, 230 are magnetically engaged with each other, the pump head 126 can be "docked" in an operator-friendly manner in the interior space at the partition wall 117. Here, an automatic orientation of the pump head 126 in the correct target position is easily achieved in an operator-friendly manner.
[0136] Especially from Figure 2 , Figure 3 and Figure 6 2 that the pump head 126 comprises a cover 238. The cover 238 forms a lid 240 which, in the closed position, covers the hose receptacle 202 and the pump actuator 210. The lid 240 can be moved into an open position so that the hose receptacle 202 and the pump actuator 210 can be removed from the pump head 126 if necessary. The lid 240 is also moved into the open position for inserting the hose line 130.
[0137] The cover 240 is pivotably mounted on the base body 184, in the present case on the section 186. A locking element 242 is arranged, for example, on the section 188, by which the cover 240 can be locked against accidental opening.
[0138] The above description relates to a preferred embodiment with only one pump actuator 210. In a preferred embodiment of the invention, it can be provided that the pump device comprises two or more pump actuators 210, which are each coupled, for example, in a torsionally fixed manner to the shaft 222. The product can be conveyed through the corresponding hose line 130 by means of the corresponding pump actuator 210.
[0139] Figure 8An advantageous embodiment of a pump device according to the invention is shown schematically, denoted by reference numeral 244. The properties and advantages explained in conjunction with pump device 112 also apply to pump device 244, so that reference can be made to the previous embodiments in this regard. Pump device 244 can be a component of a pump assembly according to the invention.
[0140] The pump device 244 comprises the pump drive 124 and a plurality of pump heads, in the present case the pump head 126 and two further pump heads 246, 248. The number of pump heads may be different.
[0141] The pump heads 126, 246, 248 are designed in particular in various ways, for example for various types of applications, which can differ from one another, for example, due to the applied hose lines 130. The pump heads 126, 246, 248 can optionally be coupled to the pump drive 124 via corresponding magnetic assemblies 176, 230. The pump device 244 is thus highly versatile.
[0142] Description of Reference Numerals
[0143] 100 Filling Machine
[0144] 102 Container
[0145] 104 Processing Station
[0146] 106 Filling Station
[0147] 108 Filling components
[0148] 110 Pump assembly
[0149] 112 Pump device
[0150] 114 Separator
[0151] 116 Wall
[0152] 117 Partition Wall
[0153] 118 Interior Space
[0154] 120 External Space
[0155] 122 cavity
[0156] 124 Pump drive mechanism
[0157] 126 Pump head
[0158] 128 Storage Container
[0159] 130 Hose Line
[0160] 132 Driver Unit
[0161] 134 Attached pipeline
[0162] 136 Support
[0163] 138 Through opening
[0164] 140 Drive Motor
[0165] 142 Flange
[0166] Segments 144 and 146
[0167] 148 bearing body
[0168] 150 Holding parts
[0169] 152 Support
[0170] 154 Receiving Space
[0171] 156 Drive shaft
[0172] 158 Drive axis
[0173] 160 Connecting elements
[0174] 162 Axis
[0175] 164 Driver
[0176] 166 Clamping sleeve
[0177] 168, 170 Supporting elements
[0178] 172 Receiving Components
[0179] 174 Connecting elements
[0180] 176 Magnetic Components
[0181] 178 Magnetic Components
[0182] 180 Reception Department
[0183] 182 Covering elements
[0184] 184 Matrix
[0185] Sections 186 and 188
[0186] 190 Frame
[0187] 191 bottom wall
[0188] 192 Accepting Space
[0189] 194 Edge
[0190] 196 Covering elements
[0191] 198 Sealing element
[0192] 200 Through opening
[0193] 202 Hose receiving part
[0194] 204 concavity
[0195] 206 Frame
[0196] 208 Introduction opening
[0197] 210 Pump actuator
[0198] 212 Rotor
[0199] 214 Pressurized element
[0200] 216 Rotation axis
[0201] 218 Driven axis
[0202] 220 Follower
[0203] 222 Axis
[0204] 223 Sealing element
[0205] 224 Receiving Components
[0206] 226 Connecting elements
[0207] 228 Clamping sleeve
[0208] 230 Magnetic Components
[0209] 232 Magnetic Components
[0210] 234 Support element
[0211] 236 Gap
[0212] 237 Sensor element
[0213] 238 Covering
[0214] 240 Cover
[0215] 242 Locking element
[0216] 244 Pump unit
[0217] 246 Pump Head
[0218] 248 Pump Head
Claims
1. A pump device (112; 244), in particular for a medicinal product, comprising a pump drive mechanism (124) and a pump head (126; 246; 248), The pump drive mechanism (124) comprises a drive unit (132), a drive body (164) which can be driven by the drive unit in a rotational manner about a drive axis (158), and a support body (136) for being supported directly or indirectly on a partition element (114), the partition element being in particular a partition wall (117), The pump head (126; 246; 248) comprises a base (184) for supporting the partition element (114), a hose receiving portion (202) for receiving a hose pipeline (130) for guiding the product, a pump actuator (210) for acting on the hose, and a driven body (220) rotatable about a driven axis (218), the driven body being operatively connected to the pump actuator (210). wherein the pump drive (124) and the pump head (126; 246; 248) can be supported on sides of the partition element (114) facing away from each other, And wherein the driving body (164) and the driven body (220) include corresponding magnetic components (176, 230) having magnetic elements (178, 232), and the magnetic elements interact with each other to transmit the driving force of the driving unit (132) to the pump actuator (210) through the partition element (114).
2. The pump device (112; 244) according to claim 1, characterized in that The pump head (126; 246; 248) can be held on the pump drive mechanism (124) via interacting magnetic elements (178, 232) across the separation element (114); in particular, the pump head (126; 246; 248) is not connected to the separation element (114) and can be held on the separation element (114) only via the magnetic elements (178, 232).
3. The pump device (112; 244) according to claim 1 or 2, characterized in that The magnetic assembly (176, 230) is designed as a multi-pole assembly, and the drive body (164) and the driven body (220) can be coupled to each other in a plurality of angular relative positions with the drive axis (158) and the driven axis (218) aligned.
4. A pump device (112; 244) according to any one of the preceding claims, characterized in that The pump head (126; 246; 248) can be held on the pump drive (124) in any desired relative angular position via the magnetic assembly (176, 230) when the drive axis (158) and the output axis (218) are aligned.
5. The pump device (112; 244) according to any one of the preceding claims, characterized in that The magnetic assemblies (176, 230) are respectively constructed as Halbach arrays of the magnetic elements (178, 232).
6. The pump device (112; 244) according to any one of the preceding claims, characterized in that At least one of the following applies: - the pump head (126; 246; 248) has a design that is compatible with medicine; The pump head (126; 246; 248) can be cleaned in a non-destructive manner with a cleaning liquid, in particular with water; The pump head (126; 246; 248) can be sterilized in a non-destructive manner.
7. The pump device (112; 244) according to any one of the preceding claims, characterized in that At least one of the following applies: The pump head (126; 246; 248) comprises a shaft (222) which is connected to the driven body (220) and the pump actuator (210) in a torsion-free manner; The output body (220) and / or the shaft (222) are supported on the base body (184) via at least one bearing element (234) so as to be rotatable about the output axis (218).
8. The pump device (112; 244) according to any one of the preceding claims, characterized in that The base (180) includes or constitutes a frame (190) and / or a bottom wall (191), wherein the base forms an edge (194) that can abut against the partition element (114) near the pump drive mechanism (124), wherein the frame (190) surrounds a receiving space (192) for receiving the driven body (220).
9. The pump device (112; 244) according to claim 8, characterized in that The base body (184) includes a covering element (196) covering the receiving space (192) on one side of the pump actuator (210), and the driven body (220) or a shaft (222) connected to the driven body (220) passes through a through opening (200) of the covering element (196) and is connected to the pump actuator (210) on a side of the frame (190) facing away from the receiving space (192).
10. The pump device (112; 244) according to claim 9, characterized in that At least one of the following applies: - at least one sealing element (198) is provided for sealing between the covering element (196) and the frame (190); At least one sealing element (223) is provided for sealing between the driven body (220) or the shaft (222) and the edge (194) of the through-opening (200).
11. The pump device (112; 244) according to any one of the preceding claims, characterized in that The driven body (220) is spaced apart from the bottom wall (191) of the base body (184), or is spaced apart from the partition element (114) via a gap (236) when the pump head (126; 246; 248) is in contact with the partition element (114).
12. The pump device (112; 244) according to any one of the preceding claims, characterized in that The driven body (220) includes a receiving element (224) close to the partition element (114) and a connecting element (226) connected to the receiving element (224), wherein the receiving element includes a plurality of receiving portions (180) for the magnetic element (232), and the connecting element is directly or indirectly connected to the pump actuator (210).
13. The pump device (112; 244) according to claim 12, characterized in that The receiving element (224) and / or the connecting element (226) are designed in a disk shape or an annular shape, wherein the magnetic element (232) is arranged along the circumferential direction of the driven axis (158).
14. The pump device (112; 244) according to any one of the preceding claims, characterized in that The pump drive mechanism (124) comprises a shaft (162) which is rotatably supported on the support body (136) via at least one bearing element (168, 170), the shaft being connected to the drive body (164) in a torsionally fixed manner and being coupled to a drive shaft (156) of the drive unit (132) via a coupling element (160) or being included in the drive unit (132).
15. The pump device (112; 244) according to any one of the preceding claims, characterized in that The support body (136) is or can be fastened directly to the partition element (114) or is or can be fastened indirectly to the partition element (114) via at least one retaining component (150).
16. The pump device (112; 244) according to claim 15, characterized in that The support body (136) is detachably attached or can be attached to the retaining component (150) or to the partition element (114).
17. The pump device (112; 244) according to claim 15 or 16, characterized in that At least one of the retaining components (150) is or includes a seat (152), the support body (136) abuts against the seat and the seat is connected to the partition element (114), wherein the receiving body is positioned laterally next to at least one of the retaining components (150) and protrudes beyond an end of the support body (136) that is away from the drive unit (132).
18. The pump device (112; 244) according to any one of the preceding claims, characterized in that The support body (136) comprises or forms a flange (142) on a side facing away from the drive body (164) and bears against a housing of the drive unit (132) via the flange (142), and a shaft (162) of the pump drive (124) extends in a through-opening (138) of the support body (136).
19. The pump device (112; 244) according to any one of the preceding claims, characterized in that When the pump drive mechanism (124) is connected to the partition element (114), the drive body (164) is spaced apart from the partition element (114) via a gap (236).
20. The pump device (112; 244) according to any one of the preceding claims, characterized in that The drive body (164) comprises a receiving element (172) adjacent to the separating element (114) and a connecting element (174) connected to the receiving element (172), the receiving element comprising a plurality of receiving portions (180) for the magnetic element (178), the connecting element being coupled to the drive unit (132) and in particular connected to the shaft (162) in a torsion-free manner.
21. The pump device (112; 244) according to claim 20, characterized in that The receiving element (172) and / or the connecting element (174) are designed in a disk shape or an annular shape, wherein the magnetic element (178) is arranged along the circumferential direction of the drive axis (158).
22. The pump device (112; 244) according to claim 20 or 21, characterized in that The receiving elements (172, 224) of the drive body (164) and the output body (220) are designed as identical components.
23. The pump device (112; 244) according to any one of the preceding claims, characterized in that The pump device (112; 244) is a peristaltic pump, wherein the hose receiving portion (202) includes a groove-shaped recess (204) for the hose line (130), and wherein the pump actuator (210) is arranged within the hose receiving portion (202) and includes at least one pressurizing element (214) which is in compression engagement with the hose line (130) when rotating about the driven axis (218).
24. The pump device (112; 244) according to any one of the preceding claims, characterized in that At least one of the following applies: The pump actuator (210) and / or the hose receptacle (202) are held detachably on the pump head (126; 246; 248); The pump head (126; 246; 248) comprises a cover (238) which can be switched from a closed position to an open position and vice versa, the cover covering the pump actuator (210) and / or the hose receptacle (202) in the closed position and releasing them in the open position.
25. Pump device according to any one of the preceding claims, characterized in that The pump device comprises a plurality of pump heads which are optionally coupleable to the pump drive mechanism.
26. A pump assembly (112; 244) comprising a chamber (122) and at least one pump device (112; 244) according to any one of the preceding claims, the chamber comprising a wall portion (116) forming the partition element (114) and an inner space (118) surrounded by the wall portion, wherein the pump drive mechanism (124) is arranged outside the chamber (122) and secured to the wall portion (116), and wherein the pump head (126; 246; 248) is arranged in the inner space (118) and is operatively connected to the pump drive mechanism (124) via the magnetic element (178, 232).
27. The pump assembly (112; 244) according to claim 26, characterized in that The chamber (122) is a clean room chamber, wherein the inner space (118) has a higher degree of sterility than the outer space (120) surrounding the chamber (122) on the outside.