Connecting device and heart-lung machine

Abstract

The utility model discloses a connecting device and a heart-lung machine, the connecting device is used for quickly detaching and connecting a first element and a second element, and the connecting device is characterized in that a first connecting piece is connected with the first element; the second connecting piece is connected with the second element, and the first connecting piece and the second connecting piece are connected with each other; the locking piece is fixed on the first connecting piece and is used for connecting or separating the first connecting piece and the second connecting piece in a locking manner; when the locking piece is operated to release locking of the first connecting piece and the second connecting piece, the first connecting piece can be driven to be far away from the second connecting piece by holding the locking piece. According to the connecting device provided by the invention, when the locking piece is operated to unlock, an operator can also hold the locking piece to drive the first connecting piece to be far away from the second connecting piece to separate the first element from the second element, the elements can be disassembled only by holding the locking piece by a single person or even by a single hand, the connecting device is very simple and convenient, and the assembling and disassembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a connecting device, in particular to a connecting device and a heart-lung machine. Background Art

[0002] In the process of production and life, there is often an operation that requires assembling two components or connecting one component to another component. For example, in the field of medical devices, such as on heart-lung machines, various devices such as roller pumps need to be installed on the frame of the heart-lung machine through a connecting device. The existing connecting devices are usually similar to structures such as compression ring clamping assemblies. On the one hand, such connecting devices are relatively complex in structure, and on the other hand, they are also very troublesome to install and disassemble. Therefore, a connecting device is needed to facilitate the disassembly and assembly of two components. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the utility model is to provide a connecting device and a heart-lung machine, which can conveniently disassemble and assemble the two components.

[0004] In order to solve the above technical problems, the utility model provides a connecting device for quickly disconnecting a first component and a second component, the connecting device comprising: a first connecting member connected to the first component; a second connecting member connected to the second component, the first connecting member and the second connecting member being connected to each other; a locking member fixed to the first connecting member, for locking and connecting or separating the first connecting member and the second connecting member; wherein, when the locking member is operated to release the lock on the first connecting member and the second connecting member, holding the locking member can drive the first connecting member away from the second connecting member.

[0005] In a feasible implementation, a lap portion is provided at the first end of the first connecting member along the first direction, the lap portion is connected to the first end of the second connecting member and fixed to the outside of the second connecting member along the first direction, and the locking member is arranged on the lap portion; a through hole for accommodating the locking member is provided at the first end of the first connecting member, a locking portion is provided at the first end of the second connecting member, one end of the locking member along the first direction passes through the through hole and is inserted into the locking portion, and the other end of the locking member is exposed to the outside of the first connecting member away from the second connecting member to form a hand-held portion.

[0006] In a feasible implementation, the locking member is a knob plunger, the locking portion is a groove structure, the groove is opened along the second direction, and a limiting portion is provided at one end of the groove close to the first connecting member along the second direction, and the limiting portion is used to limit the locking member along the second direction, wherein the second direction is perpendicular to the first direction.

[0007] In a feasible implementation, along the first direction, the second end of the first connecting member and the second end of the second connecting member are detachably connected via a locking hook structure.

[0008] In a feasible implementation, a hook groove is provided at the second end of the second connecting member along a third direction, and a locking hook corresponding to the hook groove is provided at the second end of the first connecting member, the locking hook is accommodated in the hook groove, and the locking hook can rotate a certain distance around the side wall of the hook groove close to the first connecting member; wherein the third direction is perpendicular to the first direction and the second direction.

[0009] In a feasible implementation, the hook groove has a convex portion, the second end of the first connecting member is provided with two locking hooks along the third direction, a concave portion is formed between the two locking hooks, and the convex portion is arranged on the concave portion.

[0010] In a feasible implementation, the two locking hooks are provided with chamfers away from each other along the third direction.

[0011] In a feasible implementation, the connecting device also includes a third connecting member and a fourth connecting member, the third connecting member is fixedly connected to the first element, and the third connecting member is detachably connected to the first connecting member; the fourth connecting member is fixedly connected to the second element, and the fourth connecting member is detachably connected to the second connecting member.

[0012] In a feasible implementation, at least three second through holes are centrally symmetrically provided on the first connecting member, and a third through hole corresponding to the second through hole is provided on the third connecting member, and a fastener fixes the first connecting member and the third connecting member through the second through hole and the third through hole.

[0013] Correspondingly, the utility model also provides a heart-lung machine, comprising a connecting device as described in any one of the above items, wherein the connecting device is used to fixedly connect a first element and a second element, wherein the first element is a suspended roller pump and the second element is a frame.

[0014] The implementation of this utility model has the following beneficial effects:

[0015] The connection device provided by the present application comprises a first connection member and a second connection member, respectively connected to a first element and a second element to be connected or separated, and a locking member locks and connects the first connection member and the second connection member to each other. At the same time, the locking member can also release the locking connection between the two. When the locking member is operated to release the lock, the operator can also hold the locking member to drive the first connection member away from the second connection member to separate the first element from the second element. In this way, when disassembling the element, only one person or even one hand is required to hold the locking member to achieve the disassembly of the element, which is very simple and greatly improves the efficiency of assembly and disassembly. At the same time, the operator can have more energy and space to focus on the disassembled elements, avoiding the risk of slippage when multiple people or multiple hands are operating, thereby improving the safety of assembly and disassembly.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute improper limitations on the present application.

[0018] Figure 1 is a schematic diagram of an exemplary three-dimensional structure of a connecting device shown in some embodiments of the present application;

[0019] Figure 2 yes Figure 1 Exploded image from another angle;

[0020] Figure 3 is an exemplary schematic diagram of a connection device shown in some embodiments of the present application when it is rotated and unlocked;

[0021] Figure 4 is an exemplary structural schematic diagram of the connection between the connecting device and the first element shown in some embodiments of the present application;

[0022] Figure 5 yes Figure 4 An exemplary structural diagram when the first element in the figure is rotated by a certain angle and connected to the connecting device.

[0023] Reference numerals in the figures: 100 - connection device,

[0024] 110 - first connecting member, 111 - overlapping portion, 112 - locking hook, 113 - recessed portion, 114 - second through hole;

[0025] 120-second connecting member, 121-groove, 122-limiting portion, 123-hook groove, 1231-side wall, 124-convex portion,

[0026] 130-locking piece, 131-handling part,

[0027] 140- third connecting piece, 150- fourth connecting piece,

[0028] X-first direction, Y-second direction, Z-third direction. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] refer to Figures 1 to 4 , an embodiment of the present application provides a connection device 100. The connection device 100 includes: a first connection member 110, a second connection member 120 and a locking member 130. The first connection member 110 is used to connect with the first element, the second connection member 120 is used to connect with the second element, and the first connection member 110 and the second connection member 120 are connected to each other, so as to connect the first element with the second element. The locking member 130 is fixed on the first connection member 110, and is used to lock and connect or separate the first connection member 110 and the second connection member 120. When the locking member 130 is operated to release the lock of the first connection member 110 and the second connection member 120, holding the locking member 130 can drive the first connection member 110 away from the second connection member 120.

[0035] The connection device 100 provided in the present application, the first connection member 110 and the second connection member 120 are respectively connected to the first element and the second element that need to be connected or separated, and the locking member 130 locks the first connection member 110 and the second connection member 120 to each other. At the same time, the locking member 130 can also release the locking connection between the two. When the locking member 130 is operated to release the lock, the operator can also hold the locking member 130 to drive the first connection member 110 away from the second connection member 120 to separate the first element from the second element. In this way, when disassembling the element, only one person or even one hand is needed to hold the locking member 130 to achieve the disassembly of the element, which is very simple and greatly improves the efficiency of assembly and disassembly. At the same time, the operator can have more energy and space to focus on the disassembled elements, avoiding the risk of slippage when multiple people or multiple hands are operating, thereby improving the safety of assembly and disassembly.

[0036] In order to better illustrate the embodiments of the present application, a rectangular coordinate system is established with the length direction of the first connecting member 110 and the second connecting member 120 of the connecting device 100 as the X-axis, the thickness direction as the Y-axis, and the width direction as the Z-axis to illustrate the embodiments of the present application. The X-axis direction is the first direction X, the Y-axis direction is the second direction Y, and the Z-axis is the third direction Z.

[0037] In a possible implementation, please refer to Figure 1 and Figure 2, the first end of the first connector 110 along the first direction X is provided with a lap portion 111, the lap portion 111 is connected to the first end of the second connector 120 and fixed to the outside of the second connector 120 along the first direction X, and the locking member 130 is arranged on the lap portion 111; the first end of the first connector 110 is provided with a through hole for accommodating the locking member 130, the first end of the second connector 120 is provided with a locking portion, one end of the locking member 130 along the first direction X passes through the through hole and is inserted into the locking portion, and the other end of the locking member 130 is away from the second connector 120 and exposed to the outside of the first connector 110 to form a hand-held portion 131. In this way, the locking member 130 and the locking portion cooperate with each other to achieve locking of the connecting device 100 along the first direction X. The locking member 130 is fixedly connected to the first end of the first connecting member 110 and passes through the first end of the first connecting member 110. On the one hand, the locking member 130 can cooperate with the locking part to form a locking structure, and on the other hand, it can serve as a hand-held part 131, so that the locking member 130 can be unlocked and the first connecting member 110 and the first element connected to the first connecting member 110 can be disassembled with one hand.

[0038] In one possible implementation, Figure 1 and Figure 2 As shown, the locking member 130 is a knob plunger. The knob plunger is arranged along the first direction X, and the knob plunger can be pushed and pulled along the first direction X to push the knob plunger into the locking portion or detach from the locking portion. In this way, the locking member 130 and the locking portion can achieve locking and unlocking of the connecting device 100 along the first direction X by pushing and pulling the knob plunger. The knob plunger is easy to obtain, low in cost, and simple in structure. It can be fixed on the first connecting member 110 alone without fixing the matching element on the second connecting member 120. At the same time, the knob plunger has a strong structure and an optimized design. It can be used as a holding portion and stably connected to the first connecting member 110, and can also withstand the strength of the first connecting member 110 connected to the first element. Further, the locking member 130 can also be a knob plunger with a reset or self-locking function. In this way, when the locking member 130 is placed in the locked position, it can be locked by default to prevent misoperation or forgetting to lock.

[0039] Further, the locking portion is a groove 121 structure. The groove 121 is opened along the second direction Y, and a limiting portion 122 is provided at one end of the groove 121 close to the first connecting member 110 along the second direction Y. The limiting portion 122 is used to limit the locking member 130 along the second direction Y, wherein the second direction Y is perpendicular to the first direction X. Through the setting of the limiting portion 122, the first connecting member 110 and the second connecting member 120 can be limited and locked along the second direction Y. Further, the width of the groove 121 is slightly larger than the diameter of the knob plunger, so that the groove 121 can also limit the knob plunger along the third direction Z, thereby limiting and fixing the first connecting member 110 and the second connecting member 120.

[0040] In a feasible implementation, the locking portion may also be a hole structure (not shown), which corresponds to the knob plunger. The hole structure can further limit the knob plunger, and more angles of limitation can be achieved without the limiting portion 122.

[0041] In a feasible implementation, the locking member 130 may also be a buckle assembly (not shown). For example, similar to the buckle on common luggage, it includes a loop (or hook body) and a hook (or buckle seat), wherein the loop is a part used to hook or embed another part (hook) to ensure that the two objects can be tightly connected, and the loop can be hook-shaped, ring-shaped or other specific shapes to meet different connection requirements; the hook is used in conjunction with the loop, usually with one or more openings or structures that can receive the loop and maintain a locked state, and the design of the hook matches the loop to ensure that the two parts can be firmly buckled together. In this way, the loop can be fixed to the first end of the first connecting member 110, and the loop can be fixed to the first end of the second connecting member 120, and the first connecting member 110 and the second connecting member 120 are fixedly connected by the loop and the hook. The buckle assembly is a common prior art and will not be described here.

[0042] In a feasible implementation, along the first direction X, the second end of the first connecting member 110 and the second end of the second connecting member 120 are detachably connected via a locking hook 112 structure. The detachable connection of the locking hook 112 structure can quickly complete the connection and separation of the components, greatly improving the efficiency of assembly and disassembly.

[0043] Furthermore, if Figure 1 to Figure 3As shown, the second end of the second connecting member 120 is provided with a hook groove 123 along the third direction Z. The second end of the first connecting member 110 is provided with a locking hook 112 corresponding to the hook groove 123. The locking hook 112 is accommodated in the hook groove 123, and the locking hook 112 can rotate a certain angle around the side wall 1231 of the hook groove 123 close to the first connecting member 110. The third direction Z is perpendicular to the first direction X and the second direction Y. In this way, rotational unlocking can provide a smooth and gradual process, reduce the impact or vibration caused by sudden unlocking, be gentler on the connected components, and help protect the connected objects from damage; rotational unlocking allows the operator to control the opening degree of the lock hook 112 more finely, thereby improving the accuracy and safety of the operation; the rotating lock hook 112 is usually designed with a self-locking or positioning mechanism, which can remain stable in a specific position and remain unlocked even when there is slight external vibration, thereby increasing the stability of the system; during the rotational unlocking process, stress is more evenly distributed in the lock hook 112 and the locking mechanism, thereby avoiding stress concentration, reducing local wear, and extending the service life; rotational unlocking usually requires a specific sequence of actions, such as rotating to a specific angle to unlock, which can be used as a simple safety measure to prevent inadvertent unlocking and increase safety of use; the rotational unlocking mechanism can be integrated in the lock hook 112 itself, without the need for additional unlocking tools or complex operations, making the overall structure more concise and easy to maintain and use.

[0044] In a feasible implementation, the locking hook structure of the first connecting member and the second connecting member may also be opposite to the aforementioned structure (not shown), so that locking and rotation unlocking may also be achieved, which will not be described in detail here.

[0045] In one possible implementation, Figure 1 and Figure 2 As shown, the hook groove 123 has a convex portion 124, and the second end of the first connector 110 is provided with two locking hooks 112 along the third direction Z, a concave portion 113 is formed between the two locking hooks 112, and the convex portion 124 is provided on the concave portion 113. The provision of the convex portion 124 can, on the one hand, limit the connection between the first connector 110 and the second connector 120 along the third direction Z, and on the other hand, can also play a role of initial positioning guide, which is used for guiding the assembly of the first connector 110 and the second connector 120, and increasing the continuity and stability during the installation connection.

[0046] Furthermore, if Figure 3As shown in A in the figure, the two locking hooks 112 are provided with chamfers away from each other along the third direction Z. Such a chamfer design allows the width of the two locking hooks 112 in the third direction Z to gradually increase in the direction away from the second connecting member 120 along the first direction X, thereby guiding the installation of the locking hooks 112 and the hook grooves 123 for easy assembly.

[0047] In one possible implementation, Figure 4 As shown, the connection device 100 further includes a third connection member 140 and a fourth connection member 150. The third connection member 140 is fixedly connected to the first element 201, and the third connection member 140 is detachably connected to the first connection member 110; the fourth connection member 150 is fixedly connected to the second element, and the fourth connection member 150 is detachably connected to the second connection member 120. In this way, the third connection member 140 and the fourth connection member 150 can be set with different structures according to the structures of different elements, and then the first connection member 110 and the second connection member 120 can be a universal structure, and only according to different connection requirements, the corresponding third connection member and / or fourth connection member structure is designed to improve the universality of the connection device 100. Further, by providing the third connecting member 140 and the fourth connecting member 150, when connecting the first element 201 and the second element, the first element 201 can be connected to the third connecting member 140 first, the second element can be connected to the fourth connecting member 150, and then the third connecting member 140 can be connected to the first connecting member 110, and the fourth connecting member 150 can be connected to the second connecting member 120, and finally the first connecting member 110 can be connected to the second connecting member 120; or, the first connecting member 110 can be connected to the third connecting member 140 first, the second connecting member 120 can be connected to the fourth connecting member 150, and then the third connecting member 140 can be connected to the first element 201, the fourth connecting member 150 can be connected to the second element, and finally the first connecting member 110 can be connected to the second connecting member 120; and so on, the order of installation can be adjusted according to the specific situation.

[0048] In a feasible implementation, at least three second through holes 114 are provided in a centrally symmetrical manner on the first connecting member 110, and a third through hole corresponding to the second through hole 114 is provided on the third connecting member, and a fastener is used to fix the first connecting member 110 and the third connecting member through the second through hole 114 and the third through hole. Figure 2As shown, the first connecting member 110 has eight second through holes 114 that are axially symmetrical along the plane where the first direction X and the third direction Z are located. Then, the third connecting member has six corresponding eight third through holes. In this way, after the third connecting member 140 is fixedly connected to the first element 201, the eight third through holes and the eight second through holes 114 can be installed correspondingly according to different adaptation situations. The plane where the first direction X and the third direction Z are located can be rotated along the second direction Y by a certain angle, such as ±45°, ±90° and 180°. Figure 4 and Figure 5 As shown, the first element 201 can be vertically installed on the first connector 110 of the connecting device 100 along the third direction Z, or can be rotated 45° and tilted and installed on the first connector 110. The eight third through holes allow the first element 201 to have a certain range of deflection selection of the installation angle, which is convenient for adjusting the installation angle of the first element 201 under specific time or space requirements, enhancing the flexibility and adaptability of the spatial structure of the connection between the first element 201 and the second element, saving space, and facilitating operation. At the same time, the eight through holes can also increase the stability of the connection between the first connector 110 and the third connector through eight fasteners. Further, the third through holes can also be six through holes with central symmetry, and the deflection angles can be ±60°, ±120° and 180°; it can also be five through holes, and the deflection angles are ±72° and ±144°, and so on. The number of the third through holes can be selected according to the usage scenario.

[0049] In a feasible embodiment, the connection device and the first element can also be connected in other ways besides providing a third through hole to achieve a rotatable connection between the first element and the connection device. For example, the first connector and the third connector are connected via a coupling, and the third connector is fixedly connected to the first element. For another example, the first connector is fixedly connected to the third connector, and the part where the third connector is fixedly connected to the first connector is rotatable relative to the first element, such as a ball joint, a universal joint or a coupling. In this way, the connection effect of the connection device and the first element being rotatable or deflected by a certain angle can also be achieved.

[0050] In a feasible implementation manner, only the third connecting member or the fourth connecting member may be included. The situation is similar to the above, and will not be described in detail here.

[0051] Correspondingly, an embodiment of the present application also provides a heart-lung machine. The heart-lung machine provided in the present application includes a connecting device as described in any of the foregoing items, and the connecting device is used to fixedly connect a first component and a second component, wherein the first component is a suspended roller pump and the second component is a frame. The heart-lung machine provided in the present application fixes the suspended roller pump to a fixed tube by a connecting device, thereby avoiding the traditional form of fixing on a base plate. The connecting device is firmly installed, with little vibration during use, thereby avoiding the influence of the vibration of the roller pump on the function of the heart-lung machine. The connecting device can be unlocked and installed by one person, and the operation is simple. The disassembly and assembly process can avoid falling and damaging the pump body and the operator, and the safety performance is high.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A connecting device for quickly disconnecting a first component from a second component, characterized in that: The connecting device comprises: a first connecting member connected to the first element; a second connecting member connected to the second element, wherein the first connecting member and the second connecting member are connected to each other; A locking member, fixed to the first connecting member, used to lock and connect or separate the first connecting member and the second connecting member; in, When the locking member is operated to release the locking of the first connecting member and the second connecting member, holding the locking member can drive the first connecting member to move away from the second connecting member.

2. The connection device according to claim 1, characterized in that: A lap portion is provided at the first end of the first connecting member along the first direction, the lap portion is connected to the first end of the second connecting member and is fixed to the outside of the second connecting member along the first direction, and the locking member is arranged on the lap portion; a through hole for accommodating the locking member is provided at the first end of the first connecting member, a locking portion is provided at the first end of the second connecting member, one end of the locking member along the first direction passes through the through hole and is inserted into the locking portion, and the other end of the locking member is exposed to the outside of the first connecting member away from the second connecting member to form a hand-held portion.

3. The connection device according to claim 2, characterized in that: The locking member is a knob plunger, and the locking portion is a groove structure. The groove is opened along a second direction. A limiting portion is provided at one end of the groove close to the first connecting member along the second direction. The limiting portion is used to limit the locking member along the second direction, wherein the second direction is perpendicular to the first direction.

4. The connection device according to claim 3, characterized in that: Along the first direction, the second end of the first connecting member is detachably connected to the second end of the second connecting member via a locking hook structure.

5. The connection device according to claim 4, characterized in that: The second end of the second connecting member is provided with a hook groove along a third direction, and the second end of the first connecting member is provided with a locking hook corresponding to the hook groove, the locking hook is accommodated in the hook groove, and the locking hook can rotate a certain distance around the side wall of the hook groove close to the first connecting member; wherein the third direction is perpendicular to the first direction and the second direction.

6. The connection device according to claim 5, characterized in that: The hook groove has a convex portion, and the second end of the first connecting member is provided with two locking hooks along the third direction, a concave portion is formed between the two locking hooks, and the convex portion is arranged on the concave portion.

7. The connection device according to claim 5, characterized in that: The two locking hooks are provided with chamfers away from each other along the third direction.

8. The connection device according to claim 1, characterized in that: The connecting device also includes a third connecting member and a fourth connecting member, wherein the third connecting member is fixedly connected to the first element and detachably connected to the first connecting member; the fourth connecting member is fixedly connected to the second element and detachably connected to the second connecting member.

9. The connection device according to claim 8, characterized in that: The first connecting member is provided with at least three centrally symmetrical second through holes, the third connecting member is provided with a third through hole corresponding to the second through hole, and the fasteners fixedly connect the first connecting member and the third connecting member through the second through hole and the third through hole.

10. A heart-lung machine, characterized in that: It comprises a connecting device as described in any one of claims 1 to 9, wherein the connecting device is used to fixedly connect a first element and a second element, wherein the first element is a suspended roller pump and the second element is a frame.

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