Syringe positioning assembly and syringe pump

Abstract

The application provides a syringe positioning assembly and a syringe pump, and relates to the technical field of medical equipment. The syringe positioning assembly comprises a shell, a rotating piece, a fixing piece and a transmission piece. The rotating piece is connected with the fixing piece through the transmission piece. Therefore, the rotating piece can drive the fixing piece to move through the transmission piece during rotation. Specifically, when the rotating piece rotates in the direction away from the bearing surface of the shell, the fixing piece can move in the direction away from the fixed surface of the shell. In this way, when the space between the rotating piece and the bearing surface of the shell is convenient for placing the barrel of the syringe, the space between the fixing piece and the fixed surface of the shell is also convenient for placing the curled edge of the barrel of the syringe. Therefore, the user can only operate the rotating piece, and the fixing piece can move accordingly, so that the barrel of the syringe and the curled edge of the barrel of the syringe can be conveniently installed and placed in the corresponding positions.

Description

Technical Field

[0001] This application relates to a syringe positioning component and an injection pump, belonging to the field of medical device technology. Background Technology

[0002] The positioning component in the syringe pump is used to fix the syringe to the syringe pump. Specifically, when fixing the syringe pump, in order to keep the syringe relatively stable, the syringe barrel and the rolled edge at the end of the barrel can be fixed at the same time.

[0003] In related technologies, the components in the positioning assembly that correspond to the fixed cylinder and the rolled edge at the end of the cylinder need to be operated and controlled separately, which makes the syringe fixing process complicated and inconvenient. Summary of the Invention

[0004] This application provides a syringe positioning component and an injection pump, which solves the problem of complex and inconvenient operation process of fixing the syringe on the injection pump in related technologies.

[0005] In a first aspect, this application provides a syringe positioning component, comprising:

[0006] The casing has a load-bearing surface and a fixing surface;

[0007] A rotating member is rotatably disposed in the housing, the rotating member being configured to rotate in a direction toward or away from the bearing surface;

[0008] A fastener is movably connected to the housing, and the fastener is opposite to the fixing surface;

[0009] A transmission component, connected to the rotating component and the fixed component;

[0010] When the rotating member rotates away from the bearing surface, the rotating member drives the fixed member to move away from the fixed surface through the transmission member.

[0011] In some embodiments, when the rotating member rotates toward the bearing surface, the fixing member moves toward the fixing surface.

[0012] In some embodiments, the transmission member is disposed within the housing, the rotating member and the transmission member pass through the housing, at least a portion of the rotating member is located outside the housing, and the bearing surface and the fixing surface are located on the surface of the housing.

[0013] In some embodiments, the transmission component includes a first transmission part and a second transmission part connected to each other. The first transmission part is connected to the rotating component, and the second transmission part is connected to the fixed component. The direction in which the fixed component moves away from the fixed surface is a first direction. The first transmission part rotates with the rotating component to drive the second transmission part to move along the first direction.

[0014] In some embodiments, the second transmission part has a guide groove having a first end and a second end, and at least a portion of the first transmission part is embedded in the guide groove. The first transmission part is configured to rotate relative to the second transmission part so that the first transmission part reciprocates between the first end and the second end.

[0015] In some embodiments, the rotating member rotates in a third direction away from the bearing surface, the third direction is arranged around the first direction, and the guide groove is spirally distributed around the first direction.

[0016] In some embodiments, the rotating component includes a handle and a first connecting shaft. The handle is connected to one end of the first connecting shaft. The handle is located outside the housing. The first connecting shaft passes through the housing and is connected to the first transmission part. The second transmission part is movably sleeved on the first connecting shaft.

[0017] In some embodiments, the fixing member includes a fixing plate and a second connecting shaft. The fixing plate is connected to one end of the second connecting shaft, and the fixing plate is located outside the housing and opposite to the fixing surface. The second connecting shaft passes through the housing and is connected to the second transmission part.

[0018] In some embodiments, the syringe positioning assembly further includes a limiting block, and the rotating member further includes a toggle piece. The limiting block is disposed within the housing, and the toggle piece is connected to the first connecting shaft. The limiting block engages with the toggle piece in the rotational direction of the rotating member.

[0019] In some embodiments, the second transmission part includes a cylindrical body and an abutment plate connected to each other. The cylindrical body is movably sleeved on the first connecting shaft, and the abutment plate is movably sleeved on the second connecting shaft. The second connecting shaft has a boss opposite to the abutment plate.

[0020] In some embodiments, the syringe positioning assembly further includes a first elastic element connected to the fixing member and the housing. When the fixing member moves away from the fixing surface, the first elastic element deforms under force, and the restoring deformation force of the first elastic element can drive the fixing member to move toward the fixing surface.

[0021] In some embodiments, the syringe positioning assembly further includes a second elastic element connected to the rotating member and the housing. When the rotating member rotates away from the bearing surface, the second elastic element deforms under force, and the restoring deformation force of the second elastic element can drive the rotating member to rotate toward the bearing surface.

[0022] In some embodiments, the syringe positioning assembly further includes a trigger switch disposed in the housing and opposite to the fixing member. When the distance between the fixing member and the fixing surface is at its minimum, the fixing member contacts the trigger switch to activate the trigger switch. When the distance between the fixing member and the fixing surface increases, the fixing member separates from the trigger switch.

[0023] Secondly, embodiments of this application also propose another syringe positioning component, including:

[0024] The shell has a load-bearing surface;

[0025] A rotating member is rotatably disposed in the housing, the rotating member being configured to rotate in a direction toward or away from the bearing surface;

[0026] A second elastic element is disposed inside the housing. The second elastic element is connected to both the housing and the rotating element. When the rotating element rotates away from the bearing surface, the second elastic element is deformed by force. The restoring deformation force of the second elastic element can drive the rotating element to rotate toward the bearing surface.

[0027] In some embodiments, the rotating component includes a handle and a first connecting shaft, the handle being connected to one end of the first connecting shaft, the handle being located outside the housing, and the first connecting shaft being rotatably inserted through the housing.

[0028] In some embodiments, the syringe positioning assembly further includes an angle sensor connected to the rotating element.

[0029] In some embodiments, the syringe positioning assembly further includes a limiting block disposed within the housing, the limiting block engaging with the rotating member in the rotation direction of the rotating member.

[0030] Thirdly, based on the syringe positioning component described above, this application also provides an injection pump, which includes the syringe positioning component described above.

[0031] In the syringe positioning assembly provided in this application, the rotating component is connected to the fixed component via a transmission component. Therefore, during rotation, the rotating component can drive the fixed component to move via the transmission component. Specifically, when the rotating component rotates in the direction opposite to the bearing surface of the housing, the fixed component can move in the direction opposite to the fixing surface of the housing. In this way, the space between the rotating component and the bearing surface of the housing can be used to conveniently place the syringe barrel, and the space between the fixed component and the fixing surface of the housing can also be used to conveniently place the rolled edge of the syringe barrel. Therefore, the user can make the fixed component move by simply operating the rotating component, so that the syringe barrel and the rolled edge of the syringe barrel can be conveniently installed and placed in the corresponding positions, ultimately improving the efficiency of fixing the syringe in the syringe positioning assembly of this application. Attached Figure Description

[0032] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0033] Figure 1 This is a schematic diagram of the overall structure of the syringe positioning component according to an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the transmission component of the syringe positioning assembly according to an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the assembly of the rotating part and the first transmission part of the syringe positioning assembly according to an embodiment of this application.

[0036] Figure 4 This is a schematic diagram of the structure of the fixing member of the syringe positioning assembly according to an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of the cooperation between the first elastic member and the fixing member of the syringe positioning assembly according to an embodiment of this application;

[0038] Figure 6 This is a schematic diagram showing the cooperation between the second elastic member and the rotating member of the syringe positioning assembly according to an embodiment of this application;

[0039] Figure 7 This is a schematic diagram of the limiting block of the syringe positioning component according to an embodiment of this application;

[0040] Figure 8 This is a schematic diagram showing the cooperation between the angle sensor and the rotating component of the syringe positioning assembly according to an embodiment of this application;

[0041] Figure 9 This is a schematic diagram of the second elastic element of the syringe positioning assembly according to an embodiment of this application;

[0042] Figure 10 This is a schematic diagram of another syringe positioning component proposed in an embodiment of this application.

[0043] Figure label:

[0044] 100 - Housing, 110 - Bearing surface, 120 - Fixing surface

[0045] 200-Rotating component, 210-Handle, 220-First connecting shaft, 230-Actuating piece, 240-Coupling, 300-Fixing component, 310-Fixing piece, 320-Second connecting shaft.

[0046] 400 - Transmission component, 410 - First transmission part, 420 - Second transmission part, 421 - Guide groove, 421a - First end, 421b - Second end, 422 - Outer cylinder, 423 - Abutment piece

[0047] 500 - Limit block, 510 - Limit mounting part, 520 - Limit part

[0048] 600 - First elastic element,

[0049] 700 - Second elastic element,

[0050] 800-Trigger Switch

[0051] 900- Angle sensor. Detailed Implementation

[0052] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0053] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] The positioning component in the syringe pump is used to fix the syringe to the syringe pump. Specifically, when fixing the syringe pump, in order to keep the syringe relatively stable, the syringe barrel and the rolled edge at the end of the barrel can be fixed at the same time.

[0059] In related technologies, the structures for fixing the cylinder body and the rolled edge at the end of the cylinder body in the positioning assembly are independent components. Therefore, when fixing the cylinder body and the rolled edge at the end of the cylinder body, at least two independent components need to be operated separately. This makes the syringe fixing process complicated and inconvenient.

[0060] The syringe positioning assembly and injection pump proposed in this application embodiment connect the rotating part and the fixed part through a transmission component. After the rotating part is fixed to the cylinder by rotation, the fixed part can move with the rotation of the rotating part to fix the rolled edge at the end of the cylinder. In this way, only the rotating part needs to be operated to move both the rotating part and the fixed part to fix the syringe, thereby improving the fixing efficiency of the syringe positioning assembly of this application.

[0061] The syringe positioning component and injection pump provided in this application will be described in detail below with reference to specific embodiments.

[0062] refer to Figure 1 This application provides a syringe positioning assembly, including a housing 100, a rotating component 200, a fixing component 300, and a transmission component 400, which can be applied to an injection pump.

[0063] The housing 100 is the basic component of the syringe positioning assembly of this application. The housing 100 provides a mounting base for at least some other components of the syringe positioning assembly and also serves to protect those components. The housing 100 can be made of metal or composite materials. A metal housing 100 has better structural strength, while a composite material housing 100 is relatively lighter. This application does not limit the specific material of the housing 100.

[0064] Both the rotating member 200 and the fixed member 300 are movably connected to the housing 100. The rotating member 200 is rotatably connected to the housing 100. Specifically, the housing 100 may have a pin hole that mates with the rotating member 200. At least a portion of the rotating member 200 may be disposed in the pin hole of the housing 100. The housing 100 has a bearing surface 110 that matches the syringe barrel, so that the syringe barrel can be placed on the bearing surface 110 of the housing 100. Specifically, the rotating member 200 may rotate in a direction toward the bearing surface 110 of the housing 100 or in a direction away from the bearing surface 110 of the housing 100. After the rotating member 200 moves in the direction opposite to the bearing surface 110 of the housing 100, the distance between the rotating member 200 and the bearing surface 110 increases, so that the space between the rotating member 200 and the bearing surface 110 is sufficient for the syringe barrel to be conveniently placed on the bearing surface 110. When the rotating member 200 rotates toward the bearing surface 110, it can rotate to press against the syringe barrel, so that the syringe barrel can be clamped between the rotating member 200 and the bearing surface 110 of the housing 100, thereby achieving the purpose of fixing the syringe barrel.

[0065] The fastener 300 is slidably connected to the housing 100. The housing 100 has a fixing surface 120 opposite to the fastener 300. The housing 100 can move relative to the housing 100, so that the distance between the fixing surface 120 of the housing 100 and the fastener 300 is adjustable. Specifically, the fastener 300 can move toward the fixing surface 120 of the housing 100 to reduce the distance between the fastener 300 and the fixing surface 120, or move away from the fixing surface 120 to increase the distance between the fastener 300 and the fixing surface 120. Therefore, by increasing the distance between the fixing member 300 and the fixing surface 120 of the housing 100 to a value greater than the thickness of the rolled edge at the end of the syringe barrel, the rolled edge at the end of the syringe barrel can be conveniently placed between the fixing member 300 and the fixing surface 120 of the housing 100. By reducing the distance between the fixing member 300 and the fixing surface 120 of the housing 100, the rolled edge of the syringe barrel can be clamped between the fixing member 300 and the fixing surface 120, thereby achieving the purpose of fixing the rolled edge of the syringe barrel.

[0066] The rotating component 200 is connected to the fixed component 300 via the transmission component 400. Therefore, during rotation, the rotating component 200 can drive the fixed component 300 to move via the transmission component 400. Specifically, when the rotating component 200 rotates in the direction opposite to the bearing surface 110 of the housing 100, the fixed component 300 can move in the direction opposite to the fixing surface 120 of the housing 100. In this way, the space between the rotating component 200 and the bearing surface 110 of the housing 100 can be conveniently used to place the syringe barrel, and the space between the fixed component 300 and the fixing surface 120 of the housing 100 can also be conveniently used to place the rolled edge of the syringe barrel. Therefore, the user can make the fixed component 300 move by simply operating the rotating component 200, so that the syringe barrel and the rolled edge of the syringe barrel can be conveniently installed and placed in the corresponding positions, ultimately improving the efficiency of fixing the syringe by the syringe positioning assembly of this application.

[0067] Furthermore, it should be understood that in some embodiments, the fixing member 300 may be configured to drive the rotating member 200 to rotate during movement. Specifically, when the user operates the fixing member 300 to move along the fixing surface 120 opposite to the housing 100, the fixing member 300 can drive the rotating member 200 to rotate along the bearing surface 110 opposite to the housing 100 through the transmission member 400. In this way, the user can make the rotating member 200 rotate accordingly by operating only the fixing member 300, thereby making it easy to install and place the syringe barrel and the rolled edge of the syringe barrel in the corresponding positions, and ultimately improving the efficiency of fixing the syringe by the syringe positioning assembly of this application.

[0068] In some implementations, reference continues. Figure 1 To make the syringe positioning assembly of this application more compact, the housing 100 can be configured as a structural component with an internal cavity, and the transmission component 400 can be disposed within the housing 100. This allows the transmission component 400 to utilize the internal space of the housing 100, and the housing 100 also protects the transmission component 400 from exposure and damage, or from impurities entering the transmission component 400 and causing damage. This makes the connection between the rotating component 200 and the fixed component 300 via the transmission component 400 more stable and reliable. Correspondingly, the rotating component 200 can pass through the housing 100 and connect with the transmission component 400, with a portion of the rotating component 200 located outside the housing 100 to facilitate user operation of the rotating component 200. Similarly, the fixed component 300 can also pass through the housing 100 and connect with the transmission component 400, with a portion of the fixed component 300 located outside the housing 100, allowing the user to easily observe the clamping effect of the rotating component 200, the fixed component 300, and the syringe.

[0069] In some implementations, reference Figure 2In order for the transmission component 400 of this application to convert the rotational force of the rotating component 200 into a force that drives the fixed component 300 to move, the transmission component 400 may specifically include a first transmission part 410 and a second transmission part 420. The first transmission part 410 and the second transmission part 420 are connected and cooperate with each other, and the first transmission part 410 is connected to the rotating component 200, and the second transmission part 420 is connected to the fixed component 300. Therefore, the first transmission part 410 can rotate with the rotating component 200, and after the first transmission part 410 rotates with the rotating component 200, it can drive the second transmission part 420 to move, so that the fixed component 300 can move in a direction away from the fixed surface 120 of the housing 100. Specifically, the direction in which the fixing member 300 moves away from the fixing surface 120 of the housing 100 is the first direction, the direction in which the fixing member 300 moves toward the fixing surface 120 of the housing 100 is the second direction, the direction in which the rotating member 200 rotates away from the bearing surface 110 of the housing 100 is the third direction, and the direction in which the rotating member 200 rotates toward the bearing surface 110 of the housing 100 is the fourth direction. When the first transmission part 410 rotates, the first transmission part 410 can drive the second transmission part 420 to move along the first direction. In this way, the second transmission part 420 can drive the fixing member 300 to also move along the first direction, that is, drive the fixing member 300 to move along the direction away from the fixing surface 120 of the housing 100.

[0070] In some implementations, reference continues. Figure 2 In order to enable the first transmission part 410 and the second transmission part 420 to be connected and to convert the rotational force into the linear motion force, a guide groove 421 can be provided on the second transmission part 420. The groove shape of the guide groove 421 is matched with the first transmission part 410, so that at least part of the first transmission part 410 can be embedded in the guide groove 421. The guide groove 421 has a first end 421a and a second end 421b. After the first transmission part 410 rotates in the third direction, the first transmission part 410 can also move relative to the second transmission part 420 in the direction from the first end 421a to the second end 421b of the guide groove 421, thereby driving the fixing member 300 to move in the first direction. When the first transmission part 410 is embedded in the guide groove 421 of the second transmission part 420, the guide groove 421 can limit the first transmission part 410, so that when the first transmission part 410 rotates in the first direction, the first transmission part 410 can always be located in the guide groove 421, thereby making the cooperation relationship between the first transmission part 410 and the second transmission part 420 relatively stable.

[0071] Of course, in other embodiments, in order to enable the first transmission part 410 and the second transmission part 420 to drive each other, a guide groove 421 can be formed in the first transmission part 410. Correspondingly, at least a portion of the second transmission part 420 can be embedded in the guide groove 421 of the first transmission part 410. In this way, after the first transmission part 410 rotates in the third direction, the second transmission part 420 can move relative to the first transmission part 410 in the direction from the first end 421a to the second end 421b of the guide groove 421, thereby driving the fixing member 300 to move in the first direction.

[0072] In some implementations, reference Figure 2 In this application, the third direction of rotation of the rotating member 200 can be set as the first direction of movement around the fixed member 300, that is, the first direction is the axis of the rotation trajectory of the rotating member 200. The guide groove 421 can be set spirally around the first direction in the second transmission part 420. In this way, the guide groove 421 can not only be distributed along the first direction, but also distributed along the third direction. Therefore, during the process of the first transmission part 410 moving relative to the second transmission part 420 along the guide groove 421, the rotational force of the first transmission part 410 can act on the inner wall of the guide groove 421, so that the rotational force of the first transmission part 410 can be decomposed into a linear driving force acting on the second transmission part 420 along the first direction, thereby causing the second transmission part 420 to move relative to the first transmission part 410 along the first direction, and finally causing the fixed member 300 to move in the direction opposite to the fixed surface 120 of the housing 100.

[0073] In addition, in other embodiments, a guide rail protrusion structure spirally distributed around the first direction can be provided on the second transmission part 420. Correspondingly, the first transmission part 410 can be provided with a groove structure that cooperates with the guide rail protrusion structure, so that the first transmission part 410 and the second transmission part 420 can be interlocked with each other, and the rotation of the first transmission part 410 can also drive the second transmission part 420 to move along the first direction.

[0074] In some implementations, reference Figure 3The rotating component 200 of this application specifically includes a handle 210 and a first connecting shaft 220. The handle 210 is located outside the housing 100. One end of the first connecting shaft 220 is connected to the handle 210, and the other end of the first connecting shaft 220 passes through the housing 100 and extends into the housing 100. The first transmission part 410 is connected to the part of the first connecting shaft 220 located inside the housing 100. The user can rotate the first connecting shaft 220 by holding the handle 210 outside the housing 100, thereby driving the first transmission part 410 to rotate. The bearing surface 110 of the housing 100 is located on the outer surface of the housing 100. When the rotating member 200 rotates in a third direction, the handle 210 can rotate away from the bearing surface 110 of the housing 100. When the rotating member 200 rotates in a fourth direction, the handle 210 can rotate towards the bearing surface 110 of the housing 100. Thus, the syringe barrel can be installed between the handle 210 and the bearing surface 110 of the housing 100, and the syringe barrel can be clamped between the handle 210 and the bearing surface 110 of the housing 100.

[0075] By providing a handle 210 located outside the housing 100, the syringe barrel can be fixed, and the user can easily operate the rotating part 200 to rotate, thus making the syringe positioning component of this application more convenient to use.

[0076] refer to Figure 3 Specifically, the first transmission part 410 of this application can be configured as a pin fixed to the side wall of the first connecting shaft 220. Specifically, the side wall of the first connecting shaft 220 can have a pin hole for the pin, allowing the pin to be inserted into the pin hole of the first connecting shaft 220. Thus, when the pin is installed on the first connecting shaft 220, the pin can protrude relative to the side wall of the first connecting shaft 220. The pin and the first connecting shaft 220 can be detachably connected. Specifically, the pin and the pin hole of the first connecting shaft 220 can be a transition fit, allowing the pin to be fixed to the first connecting shaft 220 and relatively easily disassembled from the first connecting shaft 220. This detachable connection reduces the manufacturing difficulty of the first connecting shaft 220 and facilitates the disassembly and maintenance of the rotating component 200 and the transmission component 400. Furthermore, the first transmission part 410 can be integrally formed with the rotating component 200.

[0077] refer to Figure 2The second transmission part 420 can specifically adopt a sleeve structure, and the second transmission part 420 is sleeved on the first connecting shaft 220. The second transmission part 420 can rotate relative to the first connecting shaft 220. When the second transmission part 420 is sleeved on the first connecting shaft 220, the pin can be embedded in the guide groove 421 of the second transmission part 420. This allows the first transmission part 410 and the second transmission part 420 to be relatively close to each other, making the structure of the transmission component 400 more compact, and ultimately making the structure of the syringe positioning assembly of this application more compact. The guide groove 421 of the second transmission part 420 can be configured to penetrate through the side wall of the second transmission part 420. This allows the user to easily observe whether the pin and the guide groove 421 of the second transmission part 420 are properly engaged. This facilitates troubleshooting in case of a malfunction in the transmission component 400.

[0078] The length of the pin in this application can be set to be greater than the outer diameter of the first connecting shaft 220. Therefore, when the pin passes through the first connecting shaft 220, both ends of the pin can protrude from the side wall of the first connecting shaft 220. Correspondingly, the number of guide grooves 421 of the second transmission part 420 can be set to two. The two guide grooves 421 can respectively cooperate with the two ends of the pin, so that the two ends of the pin can be respectively embedded in the two guide grooves 421. This makes the cooperation and connection relationship between the first transmission part 410 and the second transmission part 420 more balanced and stable.

[0079] Furthermore, it should be understood that in other embodiments, when the second transmission part 420 is sleeved on the first connecting shaft 220, if the second transmission part 420 is provided with a guide rail protrusion structure that is spirally distributed around the first direction, the guide rail protrusion structure may be provided on the inner wall of the second transmission part 420.

[0080] In some implementations, reference Figure 1 and Figure 4 The fixing member 300 of this application may specifically include a fixing plate 310 and a second connecting shaft 320. The fixing plate 310 is located outside the housing 100 and faces the fixing surface 120 of the housing 100. One end of the second connecting shaft 320 is connected to the fixing plate 310, and the other end of the second connecting shaft 320 passes through the housing 100 and is connected to the second transmission part 420 inside the housing 100. When the second transmission part 420 moves in a first direction, the second connecting shaft 320 can move along the first direction with the second transmission part 420, so that the fixing plate 310 connected to the second connecting shaft 320 can also move in the first direction. In this way, the fixing plate 310 moves in a direction away from the fixing surface 120 of the housing 100, so that there is sufficient space between the fixing plate 310 and the fixing surface 120 for the placement of the syringe barrel's rolled edge.

[0081] In some implementations, reference Figure 2In order to enable the second transmission part 420 of this application to be connected to the second connecting shaft 320, the second transmission part 420 may specifically include an outer cylinder 422 and an abutment piece 423. The outer cylinder 422 is sleeved on the first connecting shaft 220, and correspondingly, a guide groove 421 is also opened on the outer cylinder 422. The abutment piece 423 is connected to the outer wall of the outer cylinder 422 and is sleeved on the second connecting shaft 320. A boss is provided on the second connecting shaft 320. The boss of the second connecting shaft 320 is opposite to the abutment piece 423. Therefore, when the abutment piece 423 moves in the first direction, the abutment piece 423 can abut against the boss. In this way, the abutment piece 423 can push the second connecting shaft 320 to move in the first direction, thereby pushing the fixing piece 310 to move in the direction opposite to the mounting surface of the housing 100.

[0082] The abutment piece 423 is specifically movably sleeved on the second connecting shaft 320, thus allowing the abutment piece 423 to move relative to the second connecting shaft 320. By moving the abutment piece 423 in the direction away from the boss, it can be disassembled and separated from the second connecting shaft 320, making assembly and disassembly of the abutment piece 423 and the second connecting shaft 320 convenient. Of course, in other embodiments, to ensure a reliable connection between the second transmission part 420 and the second connecting shaft 320, the abutment piece 423 can also be fixedly connected to the second connecting shaft 320.

[0083] In some implementations, reference Figure 1 and Figure 2 To make the syringe positioning assembly of this application more convenient to operate, it can also be configured such that when the rotating member 200 rotates toward the bearing surface 110 of the housing 100, the fixing member 300 can move toward the fixing surface 120 of the housing 100 simultaneously. In this way, when the rotating member 200 rotates toward the bearing surface 110 of the housing 100 to fix the syringe barrel, the fixing member 300 can also move toward the fixing surface 120 of the housing 100, thereby fixing the syringe barrel. Therefore, the syringe positioning assembly of this application can fix the syringe barrel and simultaneously fix the rolled edge of the syringe barrel, making the syringe positioning assembly more convenient to use.

[0084] Specifically, when the fixing member 300 moves along the second direction, the second transmission part 420 can also move along the second direction. During this process, the first transmission part 410 moves relative to the second transmission part 420 in the direction from the second end 421b to the first end 421a of the guide groove 421, and the first transmission part 410 can rotate in the fourth direction, thereby causing the rotating member 200 to rotate in the fourth direction. In this way, the user can drive the fixing member 300 to move along the second direction so that the rotating member 200 can rotate synchronously in the fourth direction. Of course, in other embodiments, a rotational force in the fourth direction can also be applied to the rotating member 200, causing the first transmission part 410 to rotate in the fourth direction. During this process, the first transmission part 410 moves relative to the second transmission part 420 in the direction from the second end 421b to the first end 421a of the guide groove 421, and the second transmission part 420 can move accordingly in the second direction, thereby causing the fixing member 300 to move in the second direction as well. This can also achieve the purpose of synchronously driving the rotating member 200 and the fixing member 300 to reset.

[0085] For details, please refer to Figure 1 and Figure 5 The syringe positioning assembly of this application may further include a first elastic element 600, wherein the first elastic element 600 may be connected to the fixing element 300 and the housing 100. When the fixing element 300 moves away from the fixing surface 120 of the housing 100, that is, when the fixing element 300 moves along the first direction, the first elastic element 600 may be deformed by the force of the fixing element 300. Thus, when the fixing element 300 is no longer subjected to the force in the first direction, the restoring deformation force of the first elastic element 600 may drive the fixing element 300 to move toward the fixing surface 120 of the housing 100, that is, when the fixing element 300 moves along the second direction, so that the fixing element 300 may clamp the rolled edge of the syringe barrel. Therefore, when the distance between the fixing member 300 and the fixing surface 120 of the housing 100 increases, allowing the rolled edge of the syringe barrel to be placed between the fixing member 300 and the fixing surface 120 of the housing 100, the user only needs to release the force applied to the fixing member 300 in the first direction, and the fixing member 300 will automatically move in the second direction to clamp the rolled edge of the syringe barrel, thereby greatly simplifying the operation of the syringe positioning assembly of this application.

[0086] refer to Figure 5The first elastic element 600 can specifically be a spring. The first elastic element 600 can be sleeved on the second connecting shaft 320. The side wall of the second connecting shaft 320 is provided with a protrusion that can be embedded in the gap of the first elastic element 600, thus fixing the first elastic element 600 to the second connecting shaft 320. One end of the first elastic element 600 can abut against the inner wall of the housing 100. Therefore, when the fixing member 300 is subjected to force and moves in the first direction, the first elastic element 600 can be compressed, and the restoring deformation of the first elastic element 600 can push the fixing member 300 to move in the second direction. Of course, in other embodiments, when the first elastic element 600 is fixedly sleeved on the second connecting shaft 320, when the fixing member 300 is subjected to force and moves in the first direction, the first elastic element 600 can also be stretched, and the restoring deformation of the first elastic element 600 can pull the fixing member 300 to move in the second direction.

[0087] Furthermore, the fact that the first elastic element 600 is sleeved on the second connecting shaft 320 makes the connection structure between the first elastic element 600 and the second connecting shaft 320 more compact and occupies less space, thereby making the structure of the syringe positioning assembly of this application more compact.

[0088] In some implementations, reference Figure 1 , Figure 5 and Figure 6 To further facilitate the operation of the syringe positioning assembly of this application, the syringe positioning assembly may also include a second elastic element 700, wherein the second elastic element 700 can be connected to the rotating member 200 and the housing 100. When the rotating member 200 rotates away from the bearing surface 110 of the housing 100, that is, when the rotating member 200 rotates in a third direction, the second elastic element 700 can be deformed by the force of the rotating member 200. Thus, when the rotating member 200 is no longer subjected to the force in the third direction, the restoring deformation force of the second elastic element 700 can drive the rotating member 200 to move toward the bearing surface 110 of the housing 100, that is, the rotating member 200 rotates in a fourth direction, so that the rotating member 200 can clamp the syringe barrel. Therefore, when the distance between the rotating member 200 and the bearing surface 110 of the housing 100 increases, allowing the syringe barrel to be placed between the rotating member 200 and the bearing surface 110 of the housing 100, the user only needs to remove the third-direction force applied to the rotating member 200, and the rotating member 200 will automatically rotate in the fourth direction to clamp the syringe barrel, thereby greatly simplifying the operation of the syringe positioning assembly of this application.

[0089] Specifically, the second elastic element 700 can be a torsion spring. The second elastic element 700 can be sleeved on the first connecting shaft 220, and one end of the second elastic element 700 is fixed to the inner wall of the housing 100, while the other end of the second elastic element 700 is fixed to the first connecting shaft 220. When the user applies a third-direction rotational force to the rotating element 200, causing the first connecting shaft 220 to rotate, the second elastic element 700 can rotate accordingly and be twisted and compressed. After the user no longer applies a third-direction force to the rotating element 200, the restoring deformation force of the second elastic element 700 can drive the first connecting shaft 220 to rotate in the fourth direction, thereby causing the rotating element 200 to rotate toward the bearing surface 110 of the housing 100 to fix the syringe barrel.

[0090] Furthermore, the fact that the second elastic element 700 is sleeved on the first connecting shaft 220 makes the connection structure between the second elastic element 700 and the first connecting shaft 220 more compact and occupies less space, thereby making the structure of the syringe positioning assembly of this application more compact.

[0091] Therefore, in actual use of the syringe positioning assembly of this application, after the user applies a third-party force to the rotating member 200 to rotate it away from the bearing surface 110 of the housing 100, the fixing member 300 can move away from the fixing surface 120 of the housing 100 simultaneously. Then, the syringe barrel can be installed between the rotating member 200 and the bearing surface 110 of the housing 100. Correspondingly, the rolled edge of the barrel can be installed between the fixing member 300 and the fixing surface 120 of the housing 100. During this process, the third-party force applied by the user to the rotating member 200 can act on the first elastic member 600 and the second elastic member 700, so that both the first elastic member 600 and the second elastic member 700 are in a state of compression deformation. When the user cancels the third-direction force applied to the rotating member 200, the restoring deformation force of the first elastic member 600 can drive the fixing member 300 to move in the second direction, and the restoring deformation force of the second elastic member 700 can drive the rotating member 200 to rotate in the fourth direction, so that the rotating member 200 can be automatically pressed against the syringe barrel, and the fixing member 300 can be automatically pressed against the rolled edge of the syringe barrel.

[0092] Furthermore, it should be understood that when the restoring deformation force of the first elastic element 600 drives the fixed element 300 to move in the second direction, the fixed element 300 can also push the second transmission part 420 to move in the second direction. In this way, the second transmission part 420 can also drive the first transmission part 410 to rotate in the fourth direction, thereby allowing the rotating element 200 connected to the first transmission part 410 to rotate in the fourth direction. When the restoring deformation force of the second elastic element 700 drives the rotating element 200 to rotate in the fourth direction, the rotating element 200 can also drive the first transmission part 410 to rotate in the fourth direction. In this way, the first transmission part 410 can also drive the second transmission part 420 to move in the second direction, thereby allowing the fixed element 300 connected to the second transmission part 420 to move in the second direction. Therefore, the restoring deformation effects of the first elastic element 600 and the second elastic element 700 can be superimposed, resulting in a better reset effect for the rotating element 200 and the fixed element 300.

[0093] In some embodiments, to prevent the rotating member 200 from rotating excessively and to prevent the fixed member 300 from moving excessively, reference is made to... Figure 1 and Figure 7 The syringe positioning assembly of this application may also be provided with a limiting block 500, which can be fixed to the inner wall of the housing 100. The rotating member 200 may also be provided with a toggle piece 230, wherein the toggle piece 230 is connected to the first connecting shaft 220. Therefore, when the first connecting shaft 220 rotates, the toggle piece 230 can rotate accordingly. The limiting block 500 may be located on the rotation trajectory of the toggle piece 230. Therefore, the limiting block 500 can limit the toggle piece 230 in the rotation direction to determine the maximum angle that the rotating member 200 can rotate and the maximum distance that the fixing member 300 can move relative to the fixing surface 120 of the housing 100. Specifically, in this application, when the rotating member 200 rotates 120 degrees, the toggle piece 230 can abut against the limiting block 500 to prevent the rotating member 200 from continuing to rotate.

[0094] In addition, refer to Figure 7 and Figure 8 The syringe positioning assembly of this application may also include an angle sensor 900, which may be disposed within the housing 100 and connected to the first connecting shaft 220. This allows the user to obtain the rotation angle of the first connecting shaft 220, thereby obtaining the travel distance of the fixing member 300, and ultimately the distance between the fixing plate 310 and the fixing surface 120 of the housing 100. This enables the user to determine whether the rolled edge of the syringe barrel can be placed between the fixing plate 310 and the fixing surface 120 of the housing 100. Specifically, the angle sensor 900 may be disposed on the inner wall of the housing 100, and the first connecting shaft 220 may be connected to the angle sensor 900 via a coupling 240. The angle sensor 900 may specifically be a rotary potentiometer.

[0095] Specifically, in this application, the maximum rotation angle of the rotating member 200 is 120 degrees, that is, when the rotating member 200 rotates 120 degrees, the limiting block 500 and the toggle piece 230 limit each other.

[0096] In some embodiments, to detect whether the syringe is mounted on the syringe positioning assembly of this application, reference is made to... Figure 1 and Figure 7 The syringe positioning assembly may also include a trigger switch 800, which may be disposed within the housing 100 and opposite to the fixing member 300. Therefore, the fixing member 300 may contact or separate from the trigger switch 800 during movement. When the fixing member 300 contacts the trigger switch 800, the trigger switch 800 is triggered to open and has a corresponding signal. When the fixing member 300 separates from the trigger switch 800, the trigger switch 800 is closed and the corresponding signal disappears.

[0097] In this application, the trigger switch 800 is specifically positioned opposite the end of the second connecting shaft 320 that is away from the fixing plate 310. When the distance between the fixing plate 310 of the fixing member 300 and the fixing surface 120 of the housing 100 is at its minimum, the end of the second connecting shaft 320 can act on the trigger switch 800, causing the trigger switch 800 to be turned on and generate a corresponding signal, that is, indicating that the rolled edge of the syringe barrel is placed between the fixing plate 310 and the fixing surface 120 of the housing 100. When the fixing plate 310 moves along the first direction, the second connecting shaft 320 can move along the second direction until the end of the second connecting shaft 320 separates from the trigger switch 800, so that the signal corresponding to the trigger switch 800 disappears. With the rolled edge of the syringe barrel clamped between the fixing plate 310 and the housing 100, the end of the second connecting shaft 320 is still separated from the trigger switch 800. Therefore, when the trigger switch 800 is continuously in a no-signal state, it can be determined that the rolled edge of the syringe barrel has been installed between the fixing plate 310 and the fixing surface 120 of the housing 100, which makes it easy for the user to accurately judge the installation status of the syringe.

[0098] This application also proposes a syringe positioning component, with reference to... Figure 10The device includes a housing 100, a rotating member 200, and a second elastic member 700. The second elastic member 700 can be connected to the rotating member 200 and the housing 100. When the rotating member 200 rotates away from the bearing surface 110 of the housing 100, that is, when the rotating member 200 rotates in a third direction, the second elastic member 700 can be deformed by the force of the rotating member 200. When the rotating member 200 is no longer subjected to the force in the third direction, the restoring deformation force of the second elastic member 700 can drive the rotating member 200 to move toward the bearing surface 110 of the housing 100, that is, the rotating member 200 rotates in a fourth direction, so that the rotating member 200 can clamp the syringe barrel. Therefore, when the distance between the rotating member 200 and the bearing surface 110 of the housing 100 increases, allowing the syringe barrel to be placed between the rotating member 200 and the bearing surface 110 of the housing 100, the user only needs to remove the third-direction force applied to the rotating member 200, and the rotating member 200 will automatically rotate in the fourth direction to clamp the syringe barrel, thereby greatly simplifying the operation of the syringe positioning assembly of this application.

[0099] Specifically, the second elastic element 700 can be a torsion spring. The second elastic element 700 can be sleeved on the rotating element 200, and one end of the second elastic element 700 is fixed to the inner wall of the housing 100, while the other end of the second elastic element 700 is fixed to the rotating element 200. When the user applies a third-direction rotational force to the rotating element 200, causing the rotating element 200 to rotate, the second elastic element 700 can rotate accordingly and be twisted and compressed. After the user no longer applies a third-direction force to the rotating element 200, the restoring deformation force of the second elastic element 700 can drive the rotating element 200 to rotate in the fourth direction, thereby causing the rotating element 200 to rotate toward the bearing surface 110 of the housing 100 to fix the syringe barrel.

[0100] Furthermore, the fact that the second elastic element 700 is sleeved on the rotating element 200 makes the connection structure between the second elastic element 700 and the rotating element 200 more compact and occupies less space, thereby making the structure of the syringe positioning assembly of this application more compact.

[0101] In some embodiments, the syringe positioning assembly of this application may further include a limiting block 500 and an angle sensor 900. The limiting block 500 may be fixed to the inner wall of the housing 100. The rotating member 200 may also be provided with a toggle piece 230, wherein the toggle piece 230 is connected to the first connecting shaft 220. Therefore, when the first connecting shaft 220 rotates, the toggle piece 230 can rotate accordingly. The limiting block 500 may be located on the rotation trajectory of the toggle piece 230. Thus, the limiting block 500 can limit the toggle piece 230 in the rotation direction of the toggle piece 230 to determine the maximum angle that the rotating member 200 can rotate and the maximum distance that the fixing member 300 can move relative to the fixing surface 120 of the housing 100. Specifically, in this application, when the rotating member 200 rotates 120 degrees, the toggle piece 230 may abut against the limiting block 500 to prevent the rotating member 200 from continuing to rotate.

[0102] In addition, refer to Figure 7 and Figure 8 The syringe positioning assembly of this application may also include an angle sensor 900, which may be disposed within the housing 100 and connected to the first connecting shaft 220. This allows the user to obtain the rotation angle of the first connecting shaft 220, thereby obtaining the travel distance of the fixing member 300, and ultimately the distance between the fixing plate 310 and the fixing surface 120 of the housing 100. This enables the user to determine whether the rolled edge of the syringe barrel can be placed between the fixing plate 310 and the fixing surface 120 of the housing 100. Specifically, the angle sensor 900 may be disposed on the inner wall of the housing 100, and the first connecting shaft 220 may be connected to the angle sensor 900 via a coupling 240. The angle sensor 900 may specifically be a rotary potentiometer.

[0103] Based on the syringe positioning component described above, embodiments of this application also propose an injection pump that includes the syringe positioning component described above.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A syringe positioning assembly, characterized in that, include: The casing has a load-bearing surface and a fixing surface; A rotating component is rotatably disposed on the housing, the rotating component being configured to rotate in a direction toward or away from the bearing surface; when the rotating component rotates toward the bearing surface, the syringe barrel is clamped and fixed between the rotating component and the bearing surface; A fixing member is movably connected to the housing, and the fixing member is opposite to the fixing surface; when the fixing member moves toward the fixing surface, the rolled edge of the syringe barrel is clamped and fixed between the fixing member and the fixing surface; A transmission component, connected to the rotating component and the fixed component; Specifically, when the rotating member rotates away from the bearing surface, the rotating member drives the fixed member to move away from the fixed surface via the transmission member; when the rotating member rotates toward the bearing surface, the fixed member moves toward the fixed surface. The transmission component includes a first transmission part and a second transmission part connected to each other. The first transmission part is connected to the rotating component, and the second transmission part is connected to the fixed component. The direction in which the fixed component moves away from the fixed surface is a first direction. The first transmission part rotates with the rotating component to drive the second transmission part to move along the first direction.

2. The syringe positioning assembly according to claim 1, characterized in that, The transmission component is disposed inside the housing, the rotating component and the transmission component pass through the housing, at least a portion of the rotating component is located outside the housing, and the bearing surface and the fixing surface are located on the surface of the housing.

3. The syringe positioning assembly according to claim 2, characterized in that, The second transmission part has a guide groove, the guide groove has a first end and a second end, at least part of the first transmission part is embedded in the guide groove, and the first transmission part is configured to rotate relative to the second transmission part so that the first transmission part reciprocates between the first end and the second end.

4. The syringe positioning assembly according to claim 3, characterized in that, The rotating component rotates in a third direction away from the bearing surface. This third direction is arranged around the first direction, and the guide groove is spirally distributed around the first direction.

5. The syringe positioning assembly according to any one of claims 1, 3, and 4, characterized in that, The rotating component includes a handle and a first connecting shaft. The handle is connected to one end of the first connecting shaft. The handle is located outside the housing. The first connecting shaft passes through the housing and is connected to the first transmission part. The second transmission part is movably sleeved on the first connecting shaft.

6. The syringe positioning assembly according to claim 5, characterized in that, The fixing component includes a fixing plate and a second connecting shaft. The fixing plate is connected to one end of the second connecting shaft, and the fixing plate is located outside the housing and opposite to the fixing surface. The second connecting shaft passes through the housing and is connected to the second transmission part.

7. The syringe positioning assembly according to claim 6, characterized in that, The syringe positioning assembly further includes a limiting block, and the rotating component further includes a toggle piece. The limiting block is disposed inside the housing, and the toggle piece is connected to the first connecting shaft. The limiting block cooperates with the toggle piece in the rotation direction of the rotating component.

8. The syringe positioning assembly according to claim 6 or 7, characterized in that, The second transmission part includes a cylindrical body and abutting plate connected to each other. The cylindrical body is movably sleeved on the first connecting shaft, and the abutting plate is movably sleeved on the second connecting shaft. The second connecting shaft has a boss opposite to the abutting plate.

9. The syringe positioning assembly according to claim 1, characterized in that, The syringe positioning assembly further includes a first elastic element, which is connected to the fixing member and the housing. When the fixing member moves away from the fixing surface, the first elastic element is deformed by force, and the restoring deformation force of the first elastic element can drive the fixing member to move toward the fixing surface.

10. The syringe positioning assembly according to claim 9, characterized in that, The syringe positioning assembly further includes a second elastic element, which is connected to the rotating member and the housing. When the rotating member rotates away from the bearing surface, the second elastic element is deformed by force, and the restoring deformation force of the second elastic element can drive the rotating member to rotate toward the bearing surface.

11. The syringe positioning assembly according to claim 1, characterized in that, The syringe positioning assembly also includes a trigger switch, which is disposed in the housing and opposite to the fixing member. When the distance between the fixing member and the fixing surface is at its minimum, the fixing member contacts the trigger switch to activate the trigger switch. When the distance between the fixing member and the fixing surface increases, the fixing member separates from the trigger switch.

12. An injection pump, characterized in that, Includes the syringe positioning component as described in any one of claims 1-11.

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