Injection pump

Abstract

The utility model is applicable to the field of medical instruments, and provides an injection pump, which comprises an injector mounting component arranged on a shell and a control component arranged in the shell, the control component comprises a control panel and at least two inductive sensors, the inductive sensors are arranged on the control panel and are electrically connected with the control panel, and the control panel is electrically connected with the control panel. The clamping assembly comprises an induction block used for generating induction with the induction sensor, the induction block can generate different induction signals with different induction sensors, and the control panel is used for receiving the induction signals. According to the injection pump, the inductive sensor is arranged on the control assembly of the injection pump and inducts the inductive block on the clamping assembly, the position of the clamping assembly can be determined, the outer diameter size of an injector can be determined, then the model of the injector is determined, and compared with an existing contact type detection mode, the detection efficiency is improved. The model of the installed injector is confirmed in an induction mode, the position of the clamping assembly can be accurately detected in real time, and then the model of the injector is confirmed.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, and in particular relates to an injection pump. Background Art

[0002] Syringe pumps are medical devices used to automatically deliver drugs, liquids or other fluids. They are widely used in medical treatments in hospitals, clinics and other medical institutions because of their high-precision speed and flow rate when delivering drugs.

[0003] When the syringe pump is in operation, the syringe needs to be fixedly installed on the syringe pump, and the syringe is identified by the syringe pump system to confirm the model of the syringe, and then the syringe propulsion speed is matched to achieve the effect of accurately controlling the infusion accuracy. Existing syringe pumps generally use contact travel potentiometers or contact angle potentiometers to identify the syringe model. Although the model of the syringe can be identified, the contact connection of the potentiometer is relatively fragile, the installation structure is highly limited, the installation and disassembly is inconvenient, and the connection is easily damaged.

[0004] In summary, a new technology is urgently needed to solve the problems of fragile contact joints, strong structural limitations, and inconvenient installation and disassembly of potentiometers in existing contact-type detection syringes. Utility Model Content

[0005] The embodiment of the utility model provides a syringe pump, aiming to solve the problems of fragile contact connection of the potentiometer in the existing contact detection syringe, strong structural limitations, and inconvenient installation and disassembly.

[0006] The utility model is implemented in this way: a syringe pump is used in conjunction with a syringe, comprising:

[0007] case;

[0008] a syringe mounting assembly disposed on the housing, the syringe mounting assembly comprising a mounting body and a clamping assembly disposed on one end of the mounting body, the clamping assembly being movable on the mounting body relative to the inside or outside of the housing, so that the syringe is clamped on the mounting body or released by the clamping assembly; and

[0009] A control component is arranged in the shell, the control component includes a control board and at least two induction sensors, the induction sensors are arranged on the control board and electrically connected to the control board, the clamping component includes an induction block for sensing with the induction sensors, the induction block can generate different induction signals with different induction sensors, and the control board is used to receive the induction signals.

[0010] Furthermore, the clamping assembly comprises:

[0011] A clamp, the clamp being located outside the mounting body;

[0012] A connecting rod connected to the clamp, wherein the connecting rod is movably disposed through the mounting body;

[0013] an induction block provided on one end of the connecting rod away from the clamp, wherein when the induction block moves with the connecting rod in the housing, the induction sensor generates induction; and

[0014] An elastic element is sleeved on the portion of the connecting rod passing through the installation body, wherein one end of the elastic element abuts against the installation body, and the other end abuts against the sensing block.

[0015] Furthermore, the extending direction of the connecting rod is consistent with the arrangement direction of at least two of the inductive sensors; and the extending direction of the connecting rod is perpendicular to the extending direction of the installation body.

[0016] Furthermore, at least two of the inductive sensors are arranged at equal intervals in the moving direction of the inductive block.

[0017] Furthermore, the sensing block is detachably arranged on the connecting rod.

[0018] Furthermore, the sensing block comprises:

[0019] A mounting portion, the mounting portion being disposed on the connecting rod; and

[0020] The sensing part is connected to the mounting part, the sensing part is extended from the mounting part to the inner side of the shell and is located relatively above the sensing sensor. When the sensing part moves with the connecting rod in the shell, at least two of the sensing sensors generate induction respectively.

[0021] Furthermore, the sensing block is integrally formed.

[0022] Furthermore, at least two of the inductive sensors are arranged at equal intervals in the moving direction of the inductive block.

[0023] Furthermore, the movement direction of the sensing block is perpendicular to the extension direction of the mounting body.

[0024] Furthermore, the induction block is a magnet, and the induction sensor is a magnetic sensing chip; or

[0025] The sensing block is a light blocking piece, and the sensing sensor is a photoelectric sensor.

[0026] Furthermore, the housing comprises an upper cover and a bottom plate, the control assembly is arranged on the bottom plate, and the syringe mounting assembly, the upper cover and the bottom plate together enclose an inner cavity of the housing;

[0027] The mounting body includes a side wall close to the inner cavity, an upper plate close to the upper cover, and a lower plate close to the bottom plate. The side wall, the upper plate, and the lower plate form a accommodating cavity for accommodating the syringe. The clamping assembly can clamp the syringe in the accommodating cavity, or release the syringe from the accommodating cavity.

[0028] The utility model can determine the position of the clamping assembly by arranging an induction sensor on the control assembly of the injection pump to generate induction with the induction block on the clamping assembly, so as to determine the outer diameter size of the syringe clamped by the clamping assembly, and then confirm the model of the syringe. Compared with the existing contact detection injection pump, the utility model uses induction to confirm the model of the installed syringe, can accurately and real-time detect the position of the clamping assembly, and then confirm the model of the syringe, so as to control the infusion accuracy, and is easy to install and not easy to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the injection pump provided by the embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the position structure of the induction block and the induction sensor provided in the embodiment of the utility model;

[0031] Figure 3 It is a structural schematic diagram of a clamping assembly provided by an embodiment of the utility model;

[0032] Figure 4 It is a schematic diagram of the structure of the induction block provided by the embodiment of the utility model;

[0033] Figure 5 It is a schematic diagram of the product structure of the injection pump provided by the embodiment of the utility model;

[0034] Figure 6 It is a structural schematic diagram of the installation body provided by an embodiment of the utility model.

[0035] Figure Number:

[0036] 100. Injection pump; 110. Housing;

[0037] 200, mounting assembly; 210, mounting body; 211, side wall; 212, upper plate; 213, lower plate; 214, accommodating chamber; 220, clamping assembly; 221, clamp; 222, connecting rod; 223, induction block; 2231, mounting portion; 2232, induction portion; 224, elastic element;

[0038] 300, control component; 310, control board; 320, induction sensor;

[0039] 400, upper cover; 410, bottom plate; 420, syringe. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0041] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated in the description of the direction and positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0044] The syringe pump 100 is a medical device for automatically delivering drugs, liquids or other fluids, and is generally composed of a mechanical device and a control system. The syringe pump 100 can deliver drugs at a precise speed and flow rate to meet medical needs. It is widely used in various medical treatments in hospitals, clinics and other medical institutions, and can also be used in home care, such as infusion, intravenous nutrition, chemotherapy, analgesics and other treatments that require delivery at precise doses and speeds.

[0045] However, although the existing contact detection syringe pump has the functions of accurately controlling the infusion speed and dosage, the potentiometer contact connection is fragile during the installation of the syringe, and the structure is severely limited during installation, which is very inconvenient for installation and disassembly.

[0046] In response to the problems of existing syringes, this embodiment provides a syringe pump with a new technology. The position of the clamping assembly is determined by induction generated by the induction sensor on the control assembly and the induction block, so that the outer diameter of the syringe can be determined, and then the model of the syringe can be confirmed. Compared with the existing contact-type syringe pump, the syringe pump that uses induction to confirm the model of the syringe is not only easy to install, but also not easy to damage.

[0047] Embodiment 1

[0048] refer to Figure 1 and Figure 2 The present embodiment provides a syringe pump 100 for use with a syringe 420, comprising:

[0049] Housing 110;

[0050] A syringe mounting assembly 200 disposed on the housing 110, the syringe mounting assembly 200 comprising a mounting body 210 and a clamping assembly 220 disposed on one end of the mounting body 210, the clamping assembly 220 being movable on the mounting body 210 relative to the inside or outside of the housing 110, so that the syringe 420 is clamped on the mounting body 210 or released by the clamping assembly 220; and

[0051] The control component 300 is arranged in the shell 110, and the control component 300 includes a control board 310 and at least two sensing sensors 320. The sensing sensors 320 are arranged on the control board 310 and are electrically connected to the control board 310. The at least two sensing sensors 320 can be arranged in a straight line. The clamping component 220 includes a sensing block 223 located in the shell 110 and used to generate sensing with the sensing sensor 320. When the clamping component 220 moves relative to the shell 110, the sensing block 223 can sense different sensing sensors 320 to generate different sensing signals. The control board 310 is used to receive the sensing signals.

[0052] In this embodiment, the mounting assembly 200 is used to fix and install the syringe 420, and a mounting body 210 and a clamping assembly 220 are provided on the mounting assembly 200. The mounting body 210 is used to fix the syringe 420, and the syringe 420 can be fixedly mounted on the mounting body 210; the clamping assembly 220 is used to clamp the syringe 420, and the clamping assembly 220 can be installed at one end of the mounting body 210 and can move relative to the inside or outside of the shell 110, so that the syringe 420 is clamped on the mounting body 210 or released by the clamping assembly 220.

[0053] Specifically, when the syringe 420 is fixedly clamped on the mounting body 210 by the clamping assembly 220, the clamping assembly 220 moves relative to the inner side of the shell 110, that is, the clamping assembly 220 moves in the direction of entering the shell 110. When the syringe 420 is released from the mounting body 210 by the clamping assembly 220, the clamping assembly 220 moves relative to the outer side of the shell 110, that is, the clamping assembly 220 moves in the direction away from the shell 110.

[0054] The control component 300 is used to cooperate with the clamping component 220 to detect the model of the syringe 420, wherein the control component 300 includes a control board 310 for installing electrical components and data detection and processing devices, and an inductive sensor 320 for detecting the position of the clamping component 220. The inductive sensor 320 is set on the control board 310. The inductive sensor 320 can generate induction with the inductive block 223 in the housing 110 of the clamping component 220, and transmit the inductive signal to the control board 310. The control board 310 can identify and detect different inductive signals sent by the inductive sensor 320.

[0055] Furthermore, in this embodiment, a sensing block 223 is disposed on the clamping assembly 220 . The sensing block 223 may be disposed inside the housing 110 . The sensing block 223 may move relative to the housing 110 along with the clamping assembly 220 .

[0056] In one embodiment, the sensing block 223 may be an inductive sensing block 223 . By using the principle of electromagnetic induction, the sensing block 223 may convert the changing magnetic field into a voltage signal after passing through the inductive sensor 320 .

[0057] In another embodiment, the induction block 223 may also be a magnetic induction block 223 . The magnetic induction block 223 will generate a changing magnetic field after passing through the induction sensor 320 . The induction sensor 320 receives and transmits the magnetic field signal.

[0058] In another embodiment, the sensing block 223 may also be an optical sensing block 223, such as a photosensitive device (such as a photodiode). When the sensing block 223 passes through the sensing sensor 320, a specific light signal will be generated, and the position of the clamping assembly 220 on which the sensing block 223 is installed can be determined by the light signal.

[0059] The above description of the specific type of the sensing block 223 is merely exemplary and should not be construed as a limitation to the present invention. It is understandable that the sensing block 223 may also be a device other than the above that can perform detection and positioning functions, as long as it can achieve effective sensing with the sensing sensor 320.

[0060] Furthermore, the mounting assembly 200 of the injection pump 100 can be arranged on the shell 110, and the mounting assembly 200 is used to fix the syringe 420. The syringe mounting assembly 200 specifically includes a mounting body 210 and a clamping assembly 220 arranged on one end of the mounting body 210, wherein the mounting body 210 is used to fix the clamping assembly 220 and the shell 110, thereby fixing and supporting the clamping assembly 220.

[0061] Among them, the clamping assembly 220 is used to fix and clamp the syringe 420, so that the syringe 420 can be clamped on the installation body 210. The clamping assembly 220 is connected to the installation body 210. The connection relationship between the clamping assembly 220 and the installation body 210 can be a pin connection, a sleeve connection, or a sleeve connection, which is not specifically limited here.

[0062] The clamping assembly 220 can move on the mounting body 210 relative to the inside or outside of the housing 110 , thereby clamping or releasing the syringe 420 and the mounting body 210 .

[0063] Specifically, when the syringe 420 is fixedly clamped on the mounting body 210 by the clamping assembly 220, the clamping assembly 220 moves relative to the inner side of the shell 110, that is, the clamping assembly 220 moves in the direction of entering the shell 110. When the syringe 420 needs to be loosened from the mounting body 210, the clamping assembly 220 moves relative to the shell 110 toward the outer side of the shell 110, that is, the clamping assembly 220 moves in the direction away from the shell 110.

[0064] In one embodiment, the clamping assembly 220 may be a spring clamping ring, and the syringe 420 is fixed to the mounting body 210 by the elastic force of the spring clamping ring.

[0065] In another embodiment, the clamping assembly 220 may also be a clamping claw that clamps the syringe 420 by mechanical force.

[0066] In yet another embodiment, the clamping assembly 220 may also be a mechanical claw, and the syringe 420 may be fixed to the mounting body 210 by the claws of the mechanical claw.

[0067] The above specific description of the clamping assembly 220 is only exemplary and should not be construed as limiting the present invention. The clamping assembly 220 may be selected according to actual needs.

[0068] Furthermore, in this embodiment, the control assembly 300 is installed in the housing 110, and is used to identify and detect the model of the syringe 420 clamped on the mounting assembly 200, and to control the injection speed of the syringe 420 pushed by the syringe mounting assembly 200. Of course, the control assembly 300 can also be used to control the syringe pump 100 to implement the conventional functions of the common syringe pump 100, which will not be described in detail here.

[0069] Among them, the number of the sensing sensors 320 is at least two, for example, it can be three, or it can be four..., the sensing sensors 320 can be arranged in a straight line on the control board 310, and the sensing sensors 320 are the first sensing sensor, the second sensing sensor, the third sensing sensor, the fourth sensing sensor... from bottom to top along the vertical direction of the control board 310. The specific number of the sensing sensors 320 can be selected according to actual conditions, such as corresponding to the different specifications and models of syringes 420.

[0070] In one embodiment, if the sensing block 223 is an optical sensing block, the sensing sensor 320 may be a photosensitive sensor, which detects the light on the sensing block 223 and further detects the position of the sensing block 223 .

[0071] In another embodiment, if the sensing block 223 is a magnetic block, the sensing sensor 320 may be a magnetic field sensor, which detects the magnetic field generated by the sensing block 223 and further detects the position of the clamping assembly 220 .

[0072] In another embodiment, if the sensing block 223 is a target, the sensing sensor 320 may be a distance sensor, and the position of the clamping assembly 220 is determined by detecting the distance between the sensing block 223 and the sensor.

[0073] Based on the inductive sensor 320 installed on the control board 310 and the inductive block 223 arranged on the clamping assembly 220, when the clamping assembly 220 moves relative to the shell 110, the inductive block 223 can move along the mounting assembly 200 relative to the inner or outer side of the shell 110 together with the clamping assembly 220, and then generate induction with the inductive sensor 320 installed on the control board 310.

[0074] For example, when the clamping assembly 220 moves relative to the inner side of the shell 110, that is, when the clamping assembly 220 is pushed into the shell 110, the sensing block 223 on the clamping assembly 220 senses the first sensing sensor, the second sensing sensor, the third sensing sensor, the fourth sensing sensor... on the control board 310 in turn.

[0075] When the clamping assembly 220 moves relative to the outside of the shell 110, that is, when the clamping assembly 220 is pulled out of the shell 110, the sensing block 223 generates induction with the Nth sensing sensor, the N-1th sensing sensor...the third sensing sensor, the second sensing sensor, and the first sensing sensor in sequence, and the sensing sensor 320 will then feedback the position information of the sensing block 223. Since there are at least two sensing sensors 320, the control board 310 will receive different sensing signals sent by at least two sensing sensors 320, and then determine the size and model of the injection pump 100.

[0076] Based on the above structure, the clamping assembly 220 can be stretched in a direction away from the installation body 210, that is, it moves outward relative to the outer side of the housing 110, so that the syringe 420 can be removed from the installation body 210; the clamping assembly 220 is released, and the clamping assembly 220 returns to the clamping state, so that the syringe 420 can be clamped and pushed into the installation body 210, that is, the clamping assembly 220 moves relative to the inner side of the housing 110 until the clamping assembly 220 presses the syringe 420. During the movement of the clamping assembly 220, the multiple inductive sensors 320 installed on the control board 310 generate induction with the inductive block 223 located in the clamping assembly 220 in turn.

[0077] Taking the case where two sensing sensors 320 are provided as an example, the sensing block 223 will pass through the second sensing sensor and the first sensing sensor in sequence, and will generate a second sensing signal and a first sensing signal accordingly. The second sensing signal and the first sensing signal are transmitted to the control board 310. The control board 310 can detect the size of the syringe barrel of the syringe 420 through the above two sensing signals, and then measure the corresponding model of the syringe 420.

[0078] In this embodiment, the injection pump 100 generates induction through the induction sensor 320 on the control component 300 and the induction block 223, and can determine the position of the clamping component 220, so that the outer diameter of the syringe 420 can be determined, and then the model of the syringe 420 can be confirmed. The injection pump 100 using the induction detection method replaces the existing injection pump 100 using the contact detection method, and can accurately and real-time detect the position of the clamping component 220, and then confirm the model of the syringe 420, so as to control the infusion accuracy. Compared with the existing contact detection method to confirm the model of the installed syringe 420, it is easy to install and not easy to damage.

[0079] Embodiment 2

[0080] refer to Figure 3 and Figure 4 In this embodiment, the clamping assembly 220 includes:

[0081] A clamp 221, the clamp 221 is located outside the installation body 210;

[0082] A connecting rod 222 connected to the clamp 221, the connecting rod 222 movably passes through the installation body 210;

[0083] A sensing block 223 disposed on one end of the connecting rod 222 away from the clamp 221, when the sensing block 223 moves with the connecting rod 222 in the housing 110, the sensing sensor 320 generates a sense; and

[0084] The elastic element 224 is sleeved on the portion of the connecting rod 222 passing through the installation body 210 , and one end of the elastic element 224 abuts against the installation body 210 , and the other end abuts against the sensing block 223 .

[0085] In this embodiment, the clamping assembly 220 includes a clamp 221 . The clamp 221 may be disposed on the outside of the mounting body 210 . The clamp 221 is used to fix the syringe 420 on the mounting body 210 .

[0086] In one embodiment, the clamp 221 may be a flat clamp 221 with a straight jaw. The clamp 221 fixes the syringe barrel of the syringe 420 on the mounting assembly 200 through the straight jaw.

[0087] In another embodiment, the clamp 221 may also be a jaw clamp 221, which fixes the syringe barrel of the syringe 420 on the mounting assembly 200 through the conical jaws.

[0088] In yet another embodiment, the clamp 221 may be a round-mouth clamp 221, so that the end of the clamp mouth can clamp the syringe barrel of the syringe 420 and fix the syringe 420 on the fixing assembly.

[0089] The above are only several situations for selecting the clamp 221, and the specific selection can be made according to the actual situation.

[0090] Furthermore, in this embodiment, the clamping assembly 220 also includes a connecting rod 222 connected to the clamp 221, and the connecting rod 222 is used to connect the clamp 221 and the sensing block 223. The connecting rod 222 can move through the installation body 210. The connecting rod 222 can be a straight rod, an axial rod, or a pull rod, and the specific selection can be based on actual needs.

[0091] For example, when the connecting rod 222 is a straight rod, the connecting rod 222 can pass through a through hole on the installation body 210 , and after passing through the installation body 210 , the connecting rod 222 can move up and down in the installation body 210 along the through hole.

[0092] Furthermore, in the present embodiment, the clamping assembly 220 also includes a sensing block 223 disposed on an end of the connecting rod 222 away from the clamp 221, wherein the sensing block 223 can be fixed on the connecting rod 222 by means of a shaft sleeve connection, and the sensing block 223 can move together with the connecting rod 222. When the sensing block 223 moves within the shell 110 where the connecting rod 222 is located, it will sequentially pass through a plurality of sensing sensors 320 mounted on the control board 310. After passing through the plurality of sensing sensors 320, the sensing block 223 can generate induction with the sensing sensors 320 respectively, thereby causing the plurality of sensing sensors 320 to generate sensing signals respectively.

[0093] Furthermore, in this embodiment, the clamping assembly 220 also includes an elastic element 224 sleeved on the portion of the connecting rod 222 passing through the mounting body 210 , wherein one end of the elastic element 224 abuts against the mounting body 210 , and the other end abuts against the sensing block 223 .

[0094] The squeezing of the elastic element 224 can cause the connecting rod 222 to have a tendency to shrink into the shell 110, that is, the elastic element 224 squeezes the connecting rod 222 at the end that contacts the sensing block 223, so that the connecting rod 222 moves into the shell 110. The squeezing of the connecting rod 222 by the elastic element 224 can cause the clamp 221 installed on the connecting rod 222 to generate a driving force to clamp the syringe 420, so that the syringe 420 is clamped on the installation body 210 under the action of the clamp 221.

[0095] Specifically, in one embodiment, the elastic element 224 may be a spring, and the deformation of the spring applies an elastic force to the clamp 221 to clamp the syringe 420 onto the mounting body 210 .

[0096] In another embodiment, the elastic element 224 can be an elastic rope, one end of which is connected to the installation body 210, and the other end is connected to the sensing block 223. The contraction force of the elastic rope can enable the clamp 221 to generate elastic force to clamp the syringe 420 on the installation body 210.

[0097] In this embodiment, the elastic element 224 is a spring.

[0098] Based on the above structure, when the syringe 420 is installed through the clamping assembly 220, the clamp 221 is pulled out along the installation body 210, and at the same time, the elastic element 224 sleeved on the outside of the connecting rod 222 will be stretched, thereby generating an elastic force to restore the original state. The elastic element 224 can make the connecting rod 222 tend to shrink into the shell 110, so that the clamp 221 set at the front end of the connecting rod 222 generates a force to clamp the syringe 420 on the installation body 210. At this time, the syringe 420 is placed on the installation body 210, so that the clamp 221 clamps the syringe 420 on the installation body 210 under the action of the elastic element 224.

[0099] Specifically, after the clamp 221 loses the force pulling toward the outside of the shell 110, the elastic element 224 will drive the connecting rod 222 to move into the shell 110 under the tendency of contraction, and the connecting rod 222 drives the clamp 221 installed at the front end to move toward the inside of the shell 110 until the clamp 221 fixes the syringe 420 on the installation body 210.

[0100] When the connecting rod 222 drives the clamp 221 to move toward the inner side of the shell 110, the sensing block 223 installed at the rear end of the connecting rod 222 will pass through the sensing sensor 320 installed on the control board 310 in sequence. When the sensing block 223 and the sensing sensor 320 are close to each other, the sensing sensor 320 will generate a sense. Since there are multiple sensing sensors 320, the sensing sensor 320 will generate multiple sensing signals, thereby enabling the control board 310 to determine the size and model of the injection pump 100.

[0101] Taking the case where two sensing sensors 320 are provided as an example, when the clamp 221 clamps the syringe 420, the sensing block 223 on the connecting rod 222 will pass through the second sensing sensor and the first sensing sensor in sequence, and the second sensing sensor and the first sensing sensor will generate a first sensing signal and a second sensing signal respectively, and the sensing signals will be transmitted to the control board 310 through the sensing sensor 320.

[0102] In this embodiment, the syringe 420 can be clamped by the clamp 221 assembly and fixedly clamped on the mounting body 210. The operation is convenient and the efficiency of fixing and installing the syringe 420 is high. At the same time, an elastic element 224 is provided on the outer sleeve of the connecting rod 222. The structure is reasonable and the syringe 420 is firmly fixed.

[0103] Embodiment 3

[0104] refer to Figure 1 In the embodiment of the present utility model, the extending direction of the connecting rod 222 is consistent with the arrangement direction of the at least two sensing sensors 320 .

[0105] Taking two sensing sensors 320 as an example, the arrangement direction of the sensing sensors 320 is the direction of the line connecting the midpoints of the sensing sensors 320, and the extension direction of the connecting rod 222 is consistent with the arrangement direction of the sensing sensors 320. It is easy to understand that the extension direction of the connecting rod 222 is consistent with the direction of the line connecting the center points of the two sensing sensors 320.

[0106] In this embodiment, the extension direction of the connecting rod 222 is consistent with the connection direction of the sensing sensor 320, so that the sensing block 223 set on the connecting rod 222 can pass through the sensing sensors 320 set on the control board 310 in sequence when moving with the connecting rod 222, ensuring that each sensing sensor 320 can be triggered to achieve subsequent accurate identification.

[0107] Embodiment 4

[0108] refer to Figure 1 , Figure 3 and Figure 4 In the embodiment of the utility model, the extending direction of the connecting rod 222 is perpendicular to the extending direction of the installation body 210.

[0109] It is easy to understand that the extension direction of the connecting rod 222 is the movement direction of the connecting rod 222, and the extension direction of the mounting body 210 is the setting direction of the mounting body 210. Based on the above structure, when the connecting rod 222 clamps or releases the syringe 420 in the clamping assembly 220, the movement direction of the connecting rod 222 is roughly perpendicular to the installation direction of the mounting body 210, so that the connecting rod 222 can make linear motion and axial motion relative to the mounting body 210, which is more convenient for pulling the connecting rod 222.

[0110] Embodiment 5

[0111] refer to Figure 3 and Figure 4 In the embodiment of the utility model, the sensing block 223 is detachably disposed on the connecting rod 222 .

[0112] Specifically, the connection relationship between the sensing block 223 and the connecting rod 222 can be a threaded connection, in which the sensing block 223 and the connecting rod 222 are connected together by the mutual engagement of the threads; the connection relationship between the sensing block 223 and the connecting rod 222 can also be a latch connection, in which a latch can be provided on the sensing block 223, and a latch groove cooperating with the latch is provided at a corresponding position of the connecting rod 222, and the sensing block 223 is fixed to the connecting rod 222 by the latch; the connection relationship between the sensing block 223 and the connecting rod 222 can also be a lock connection, in which the sensing block 223 is fixed to the connecting rod 222 by structures such as a lock, a snap ring, and a snap ring groove.

[0113] Based on the above structure, the connection relationship between the sensing block 223 and the connecting rod 222 is set to be a detachable connection relationship, which can facilitate the installation of the sensing block 223 and subsequent maintenance and replacement.

[0114] Embodiment 6

[0115] Please refer to Figure 3 and Figure 4 In the embodiment of the utility model, the sensing block 223 includes:

[0116] A mounting portion 2231, the mounting portion 2231 is disposed on the connecting rod 222; and

[0117] The sensing portion 2232 connected to the mounting portion 2231 extends from the mounting portion 2231 toward the inner side of the housing 110 and is located relatively above the sensing sensor 320. When the sensing portion 2232 moves with the connecting rod 222 in the housing 110, at least two sensing sensors 320 generate induction respectively.

[0118] In this embodiment, the sensing block 223 specifically includes a mounting portion 2231 and a sensing portion 2232. The mounting portion 2231 is used to connect the sensing portion 2232 and the connecting rod 222. The mounting portion 2231 may be made of plastic or metal, which may be selected according to actual conditions.

[0119] It is easy to understand that one end of the mounting portion 2231 is connected to the connecting rod 222, and the other end of the mounting portion 2231 is connected to the sensing portion 2232, wherein the connection between the mounting portion 2231 and the connecting rod 222 can be detachable, and the connection between the mounting portion 2231 and the sensing portion 2232 can be detachable or integrated.

[0120] If the mounting portion 2231 and the sensing portion 2232 are integrated, they can be manufactured using an integrated molding process, such as injection molding, in which molten plastic or rubber material is injected into the sensing block 223 mold, and solidified by cooling; die casting can also be used, in which molten metal is injected into the sensing block 223 mold, and pressure is applied to cool and solidify it; or blow molding can be used, in which molten plastic is injected into the sensing block 223 mold, and air pressure is applied to squeeze it out of the mold shape, and cooled and solidified it; it can also be stretch blow molding, stretch molding, etc.

[0121] The sensing portion 2232 is used to sense the sensing sensor 320 installed on the control board 310. The sensing portion 2232 is arranged to extend from the mounting portion 2231 toward the inner side of the shell 110, and is located relatively above the sensing sensor 320. It is easy to understand that the position of the sensing portion 2232 is formed by the mounting portion 2231 extending toward the inner side of the shell 110, and extends to a position relatively above the sensor.

[0122] It is easy to understand that relatively above does not just mean directly above, it may be located diagonally above the sensing sensor 320 or may be located on the upper side of the sensing sensor 320. The sensing portion 2232 may move within the shell 110 along with the connecting rod 222. When moving, the sensing portion 2232 may generate induction with the sensing sensors 320 disposed on the control board 310 respectively. At least two sensing sensors 320 are provided, and the control board 310 may receive signals generated by at least two sensing sensors 320.

[0123] In one embodiment, a sensor may be installed in the sensing portion 2232, that is, the sensor is used to sense the sensing sensor 320. Preferably, the sensing portion 2232 itself senses the sensing sensor 320.

[0124] Based on the above structure, the mounting portion 2231 is connected to the connecting rod 222, and the sensing portion 2232 is relatively above the sensing sensor 320. When the sensing portion 2232 follows the connecting rod 222 to clamp the syringe 420, the sensing portion 2232 and the sensing sensor 320 generate induction in sequence.

[0125] For example, if two sensing sensors 320 are provided, the sensing portion 2232 will follow the connecting rod 222 and respectively sense the first sensing sensor and the second sensing sensor in sequence, and the corresponding first sensing signal and the second sensing signal will be transmitted to the control board 310 .

[0126] If four sensing sensors 320 are provided, the sensing portion 2232 will follow the connecting rod 222 and respectively sense the first sensing sensor, the second sensing sensor, the third sensing sensor, and the fourth sensing sensor in sequence, and the corresponding first sensing signal, the second sensing signal, the third sensing signal, and the fourth sensing signal will be transmitted to the control board 310.

[0127] Based on the above structure, the sensing block 223 is divided into the mounting part 2231 and the sensing part 2232, so that the function of the sensing block 223 is more refined, which is convenient for later maintenance and replacement, and the sensing block 223 is divided into the mounting part 2231 and the sensing part 2232 to facilitate batch manufacturing and production.

[0128] Embodiment 7

[0129] refer to Figure 3 In the embodiment of the present utility model, the sensing block 223 is integrally formed.

[0130] In this embodiment, the sensing block 223 is made by an integrated molding process. It is easy to understand that the mounting portion 2231 and the sensing portion 2232 of the sensing block 223 are made by an integrated molding process, and the integrated molding process may be injection molding, die casting, stamping molding or blow molding.

[0131] In this embodiment, the sensing block 223 is manufactured by an integrated molding process, so that the connection between the mounting portion 2231 and the sensing portion 2232 is more stable.

[0132] In one embodiment of the present invention, the distance between adjacent sensing sensors 320 may be slightly less than or equal to the difference in outer diameters of different models of injection pumps 100 .

[0133] In this embodiment, the distance between adjacent sensing sensors 320 is slightly less than or equal to the difference in outer diameters of different models of injection pumps 100. Taking equal as an example, it is easy to understand that if two sensing sensors 320 are provided and the spacing between the two sensing sensors 320 is 1 mm, different models of syringes 420 with a difference in outer diameters of 1 mm can be detected; if the spacing between the two sensing sensors 320 is 2 mm, different models of syringes 420 with a difference in outer diameters of 2 mm can be detected.

[0134] The above description only describes the case where two inductive sensors 320 are provided to detect different syringes 420 , wherein the interval between adjacent inductive sensors 320 may also be 0.5 mm, 1.5 mm, 2.5 mm, etc.

[0135] If three induction sensors 320 are provided, the spacing between two adjacent induction sensors 320 may be 1 mm, or may be 0.5 mm, 1.5 mm, 2.5 mm, etc.;

[0136] If the distance between the sensing sensors 320 is 1.5 mm, different types of syringes 420 with a difference of 1.5 mm in outer diameter can be detected;

[0137] If the distance between the sensing sensors 320 is 2.5 mm, different types of syringes 420 with a difference of 2.5 mm in outer diameter can be detected.

[0138] The above is a case where three sensing sensors 320 are provided. Alternatively, four sensing sensors 320, five sensing sensors 320, or six sensing sensors 320 may be provided.

[0139] The distance between each inductive sensor 320 can be set according to the difference in the outer diameter of the syringe 420 to be detected.

[0140] In summary, this embodiment confirms the position of the sensing block through the induction between the sensing block 223 and different sensing sensors 320, and then determines the size model of the syringe 420. Preferably, the distance between multiple sensing sensors 320 can be set to correspond to the value of the difference between the outer diameters of syringes 420 of different models, so that two syringes 420 with different differences in outer diameters can be detected, thereby realizing the detection of syringes 420 of different models.

[0141] Embodiment 8

[0142] Furthermore, please combine Figures 1 to 3 At least two sensing sensors 320 are arranged at equal intervals in the moving direction of the sensing block 223 , that is, at least two sensing sensors 320 are arranged at equal intervals on the control board 310 along the moving direction of the sensing block 223 .

[0143] Generally speaking, the size of the syringe 420 is uniformly increased, and at least two sensing sensors 320 are arranged on the control board 310 at equal intervals. When syringes 320 of different sizes are installed on the injection pump 100, the positions of at least two sensing sensors 320 can cover the moving range of the sensing block 223. The uniform spacing distance also makes it easier to calculate the moving distance of the sensing block 223, thereby more accurately feeding back the size of the currently installed syringe 320.

[0144] Furthermore, in this embodiment, the movement direction of the sensing block 320 is perpendicular to the extension direction of the mounting body 210 to fit the actual assembly of the syringe and the injection pump 100 and ensure the induction triggering of at least two sensing sensors 320 .

[0145] Embodiment 9

[0146] refer to Figure 4 In the embodiment of the utility model, the induction block 223 is a magnet, and the induction sensor 320 is a magnetic sensing chip; or

[0147] The sensing block 223 is a light blocking piece, and the sensing sensor 320 is a photoelectric sensor.

[0148] In this embodiment, the sensing block 223 is specifically selected to be a magnet, and the sensing sensor 320 is a magnetic sensing chip, or the sensing block 223 is a light blocking piece, and the sensing sensor 320 is a photoelectric sensor.

[0149] It is easy to understand that when the induction block 223 uses a magnet, the induction sensor 320 uses a corresponding magnetic chip. The magnetic chip uses the change of the magnetic field of the magnetic block to sense and measure the position of the magnetic block. Specifically, when the induction block 223 is close to or away from the magnetic chip, it will cause the change of the magnetic field around the magnetic chip. The magnetic chip detects the change of the surrounding magnetic field and transmits the change information of the magnetic field to the control board 310. The control board 310 detects the position of the magnet through the law of magnetic induction change.

[0150] When the sensing block 223 uses a light baffle, the sensing sensor 320 uses a photoelectric sensor. When the photoelectric sensor detects the light reflected by the sensing plate, it transmits data to the control board 310. Specifically, the photoelectric sensor detects the reflection of the light baffle and uses the photoelectric effect to detect and measure the position of the light baffle. In this embodiment, the sensing block 223 is preferably a magnet, and the magnetic sensing chip is usually started only when measurement is required, which can save energy.

[0151] Based on the above structure, the sensing block 223 and the sensing sensor 320 are set to be non-contact and can perform measurements without direct contact with the object to be measured, thereby reducing the impact and interference on the object to be measured. At the same time, the sensing sensor 320 can also sense and measure the magnetic field or light in real time, with a fast response speed, and is suitable for applications that require rapid detection and control.

[0152] Preferably, in this embodiment, the sensing block 223 is a magnet, and the sensing sensor 320 is a magnetic sensing chip, which has a better sensing effect and is more durable.

[0153] Embodiment 10

[0154] refer to Figure 5 , Figure 6 In the embodiment of the utility model, the housing 110 includes an upper cover 400 and a bottom plate 410, the control assembly 300 is disposed on the bottom plate 410, and the syringe mounting assembly 200, the upper cover 400 and the bottom plate 410 together form an inner cavity of the housing 110;

[0155] The mounting body 210 includes a side wall 211 close to the inner cavity, an upper plate 212 close to the upper cover 400, and a lower plate 213 close to the bottom plate 410. The side wall 211, the upper plate 212, and the lower plate 213 form a receiving cavity 214 for receiving the syringe 420. The clamping assembly 220 can clamp the syringe 420 in the receiving cavity 214, or release the syringe 420 from the receiving cavity 214.

[0156] In this embodiment, the injection pump 100 also includes an upper cover 400 and a bottom plate 410, the control component 300 is arranged on the bottom plate 410, the syringe mounting component 200, the upper cover 400 and the bottom plate 410 together form a shell 110 and an inner cavity, the mounting body 210 specifically includes a side wall 211 close to the inner cavity, an upper plate 212 close to the upper cover 400 and a lower plate 213 close to the bottom plate 410, the side wall 211, the upper plate 212 and the lower plate 213 form a accommodating cavity 214 for accommodating the syringe 420, when the clamping assembly 220 is close to the mounting body 210, the syringe 420 can be fixedly clamped in the accommodating cavity 214, when the clamping assembly 220 is away from the mounting body 210, the syringe 420 can be loosened and removed from the accommodating cavity 214.

[0157] The injection pump 100 generates induction through the induction sensor 320 on the control component 300 and the induction block 223, and can determine the position of the clamping component 220, so as to determine the outer diameter size of the syringe 420, and then confirm the model of this syringe 420. Compared with the existing contact method to confirm the model of the installed syringe 420, it is easy to install and not easy to damage.

[0158] It is understandable that those skilled in the art can, under the guidance of the above embodiments, combine various implementation methods in the above embodiments to obtain technical solutions of multiple implementation methods.

[0159] In the description of this specification, the description with reference to the terms "Example 1", "Example 2", etc. means that the specific features, structures, materials or characteristics described in conjunction with the implementation or example are included in at least one implementation or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more implementations or examples in a suitable manner.

[0160] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A syringe pump for use with a syringe, characterized in that: include: case; a syringe mounting assembly disposed on the housing, the syringe mounting assembly comprising a mounting body and a clamping assembly disposed on one end of the mounting body, the clamping assembly being movable on the mounting body relative to the inside or outside of the housing, so that the syringe is clamped on the mounting body or released by the clamping assembly; and A control component is arranged in the shell, the control component includes a control board and at least two induction sensors, the induction sensors are arranged on the control board and electrically connected to the control board, the clamping component includes an induction block for generating induction with the induction sensors, the induction block can generate different induction signals with different induction sensors, and the control board is used to receive the induction signals.

2. The injection pump according to claim 1, characterized in that The clamping assembly comprises: A clamp, the clamp being located outside the mounting body; A connecting rod connected to the clamp, wherein the connecting rod is movably disposed through the mounting body; an induction block provided on one end of the connecting rod away from the clamp, wherein when the induction block moves with the connecting rod in the housing, the induction sensor generates induction; and An elastic element is sleeved on the portion of the connecting rod passing through the installation body, wherein one end of the elastic element abuts against the installation body, and the other end abuts against the sensing block.

3. The injection pump according to claim 2, characterized in that: The extending direction of the connecting rod is consistent with the arrangement direction of at least two of the inductive sensors; An extending direction of the connecting rod is perpendicular to an extending direction of the mounting body.

4. The injection pump according to claim 2, characterized in that: The induction block is detachably arranged on the connecting rod.

5. The injection pump according to claim 2, characterized in that: The induction block comprises: A mounting portion, the mounting portion being disposed on the connecting rod; and The sensing part is connected to the mounting part, the sensing part is extended from the mounting part to the inner side of the shell and is located relatively above the sensing sensor. When the sensing part moves with the connecting rod in the shell, at least two of the sensing sensors generate induction respectively.

6. The injection pump according to claim 2, characterized in that: The induction block is integrally formed.

7. The injection pump according to claim 1, characterized in that At least two of the inductive sensors are arranged at equal intervals in the moving direction of the inductive block.

8. The injection pump according to claim 7, characterized in that: The movement direction of the sensing block is perpendicular to the extension direction of the mounting body.

9. The injection pump according to claim 1, characterized in that: The induction block is a magnet, and the induction sensor is a magnetic sensing chip; or The sensing block is a light blocking piece, and the sensing sensor is a photoelectric sensor.

10. The injection pump according to claim 1, characterized in that: The housing comprises an upper cover and a bottom plate, the control assembly is arranged on the bottom plate, and the syringe mounting assembly, the upper cover and the bottom plate together form an inner cavity of the housing; The mounting body includes a side wall close to the inner cavity, an upper plate close to the upper cover, and a lower plate close to the bottom plate. The side wall, the upper plate, and the lower plate form a accommodating cavity for accommodating the syringe. The clamping assembly can clamp the syringe in the accommodating cavity, or release the syringe from the accommodating cavity.

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