A micro-injection pump that is easy to fix

Abstract

This application discloses a micro-injection pump that is easy to fix, belonging to the field of medical tool technology. It provides a micro-injection pump that balances ease of fixation and stability, including a casing. One end of the casing extends a movable telescopic rod, and the end of the telescopic rod is fixedly connected to a traction member. The traction member is equipped with a manual adjustment member, which has a pressure plate that can be adjusted relative to the traction member. A bracket is fixedly connected to the side of the casing for mounting a syringe. A base is fixedly connected to the bottom of the casing, and the base includes a magnetic suction plate. One end of the traction member is fixedly connected to a nut. The manual adjustment member includes a screw that mates with the nut, and the pressure plate is located at the end of the screw opposite the bracket. This application incorporates a magnetic suction plate structure and an elastic pad structure at the bottom of the micro-injection pump, which effectively keeps the micro-injection pump stable on the placement surface without the need for connectors. Furthermore, the placement, fixing, and lifting processes are very quick and convenient.

Description

Technical Field

[0001] This application relates to the field of medical tool technology, and in particular to a microinfusion pump that is easy to fix. Background Technology

[0002] A micro-injection pump is a tool that helps inject syringes for micro-injection. It is generally used by placing it flat on a table or trolley. If the table or trolley is hit and the placement surface is tilted, the micro-injection pump may fall. The micro-injection pump itself is a precision instrument, but more importantly, the syringe that the micro-injection pump restrains may be connected to the patient. If the micro-injection pump falls, it is difficult to ensure the stability of the syringe itself, which may cause the syringe plunger to move, posing a risk of over-injection. Although using a connector to fix it ensures stability, the flexibility of fixing and moving it is significantly reduced. Summary of the Invention

[0003] The purpose of this application is to provide a micro-injection pump that combines convenience and stability.

[0004] To achieve the above objectives, this application provides a micro-injection pump that is easy to fix: it includes a packaging box, one end of which extends a movable telescopic rod, the end of which is fixedly connected to a traction member, the traction member being provided with a manual adjustment member, the manual adjustment member having a pressure plate that can change distance relative to the traction member, a bracket fixedly connected to the side of the packaging box for mounting a syringe, and a base fixedly connected to the bottom surface of the packaging box, the base including a magnetic suction plate for being attracted to a steel placement surface, allowing for quick and stable placement and convenient quick lifting and transfer.

[0005] As a preferred embodiment, one end of the traction member is fixedly connected to a nut, the manual adjustment member includes a screw that cooperates with the nut, the pressure plate is located at the end of the screw facing the bracket, and the end of the screw facing away from the bracket is fixedly connected to a handwheel, making the rotation of the screw easier.

[0006] As a preferred embodiment, the encapsulation box is further provided with a guide insertion hole on the end face where the telescopic rod is located, and the other end of the traction member is fixedly connected with a stabilizing insertion rod parallel to the telescopic rod, which is suitable for cooperating with the guide insertion hole to form a sliding pair, share the force of the telescopic rod, and improve the stability of the traction member when it moves.

[0007] As a preferred embodiment, the edge of the pressure plate has a positioning ring coaxial with the screw, the positioning ring extending toward the bracket for fastening onto the syringe plunger.

[0008] As a preferred embodiment, the encapsulation box has a control area and a display screen on the side facing away from the bracket. The encapsulation box contains an electric telescopic assembly, and the movable output end of the electric telescopic assembly is connected to the telescopic rod to achieve high-precision distance control.

[0009] As a preferred embodiment, the end of the packaging box facing away from the telescopic rod is provided with a hook plate to facilitate lifting the micro-injection pump that is adsorbed and fixed.

[0010] As a preferred embodiment, an elastic pad is fixedly connected to the bottom surface of the magnetic suction plate, and a friction groove is formed on the lower surface of the elastic pad to further improve the contact friction between the bottom of the micro-injection pump and the placement surface.

[0011] As a preferred embodiment, the magnetic plate is fixedly connected to the packaging box via a connecting plate. The base has a through hole at the corner extending from the upper surface of the connecting plate to the lower surface of the elastic pad, providing a through hole structure for bolts and other connecting parts to pass through, and retaining a mating structure for the micro-injection pump to be fixed using a transmission connecting part.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By setting a magnetic suction plate structure at the bottom of the micro injection pump and configuring an elastic pad structure, the micro injection pump can be kept stable on the placement surface without the need for connectors, and the process of placement, fixing, transfer and lifting will be very fast and convenient.

[0014] (2) By designing a manual adjustment piece at the end of the traction piece, the contact state between the pressure plate and the syringe plunger can be quickly adjusted, making the preparation process and interruption operation of micro-injection more flexible. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural diagram of the micro-injection pump that is easy to fix.

[0016] Figure 2 This is a schematic diagram of the second three-dimensional structure of the micro-injection pump, which is easy to fix.

[0017] Figure 3 This is a three-dimensional structural diagram of the base of the micro-injection pump, which is designed for easy fixation, positioned at the bottom of the packaging box.

[0018] Figure 4 This is a three-dimensional structural diagram of the packaging box for the micro-injection pump, which is easy to fix.

[0019] Figure 5 This is a three-dimensional cross-sectional view of the base of the micro-injection pump, which is designed for easy fixation.

[0020] Figure 6This is a three-dimensional structural diagram of the manual adjustment component and the traction component of the micro-injection pump that is easy to fix.

[0021] Figure 7 This is a three-dimensional cross-sectional view of the traction component of the micro-injection pump, which is designed for easy fixation.

[0022] Figure 8 This is a three-dimensional structural diagram of the manual adjustment component of the micro-injection pump, which is easy to fix.

[0023] In the diagram: 1. Packaging box; 101. Telescopic rod; 102. Guide socket; 103. Control area; 104. Display screen; 105. Hook plate; 2. Base; 201. Connecting plate; 202. Magnetic suction plate; 203. Elastic pad; 204. Friction groove; 205. Through hole; 3. Traction component; 301. Stabilizing rod; 302. Nut; 4. Manual adjustment component; 401. Handwheel; 402. Screw; 403. Pressure plate; 404. Positioning ring; 5. Bracket. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-8The micro-injection pump shown includes a housing 1 containing a controller and an electric telescopic assembly. A movable telescopic rod 101 extends from one end of the housing 1. The movable output end of the electric telescopic assembly is connected to the telescopic rod 101. The electric telescopic assembly includes a servo motor and a reducer structure, enabling high-precision distance control of the telescopic rod 101. A traction member 3, located outside the housing 1, is fixedly connected to the end of the telescopic rod 101. A manual adjustment member 4 is provided on the traction member 3, allowing for quick manual distance adjustment. The manual adjustment member 4 has a function relative to the traction member. The pressure plate 403 of component 3 changes the distance. In fact, one end of the traction component 3 is fixedly connected to the nut 302. The specific structure of the manual adjustment component 4 includes a screw 402 that cooperates with the nut 302. A bracket 5 is fixedly connected to the side of the packaging box 1. The bracket 5 is usually made of alloy material and has an arc-shaped inner wall. It is used to install the syringe. The bottom is farther away from the outer side of the packaging box 1, so it can well support the liquid reservoir of the syringe that is stuck in and keep it flat and stable. The pressure plate 403 is located at one end of the screw 402 opposite to the bracket 5 and is used to directly contact the plunger of the syringe and apply pressure.

[0029] The edge of the pressure plate 403 has a positioning ring 404 coaxial with the screw 402, and the positioning ring 404 extends towards the bracket 5 to hold the edge of the syringe plunger. The end of the screw 402 facing away from the bracket 5 is fixedly connected to a handwheel 401, which makes the rotation of the screw 402 easier. The encapsulation box 1 also has an inwardly extending guide hole 102 on the end face where the telescopic rod 101 is located. The other end of the traction member 3 is fixedly connected to a stabilizing rod 301 parallel to the telescopic rod 101, which cooperates with the guide hole 102 to form a sliding pair, which can effectively share the bending force on the telescopic rod 101. Usually, there are two sets of combinations of guide hole 102 and stabilizing rod 301, which cooperate with the telescopic rod 101 to form a three-point stabilizing structure, so that the traction member 3 has better stability when moving.

[0030] The packaging box 1 has a control area 103 and a display screen 104 on the side facing away from the bracket 5. The control area 103 has multiple physical buttons to facilitate the operator in setting working parameters. The packaging box 1 has an electric telescopic component, a circuit board below the control area 103, and the display screen 104, all of which are electrically connected to the controller. The end of the packaging box 1 facing away from the telescopic rod 101 is provided with a hook plate 105, through which a finger can pass to lift the entire micro-injection pump.

[0031] The bottom surface of the packaging box 1 is fixedly connected to a base 2, which is usually facing downwards towards the placement surface. The base 2 includes a magnetic suction plate 202, which can be firmly attached to a steel placement surface, such as a stainless steel tabletop or trolley. The bottom surface of the magnetic suction plate 202 is fixedly connected to an elastic pad 203 made of rubber or silicone, which has a good placement cushioning effect to avoid impact damage caused by hard contact and reduce scratch noise. The elastic pad 203 itself has good contact friction characteristics, but in order to further improve the placement stability of the micro-injection pump, a friction groove 204 is also formed on the lower surface of the elastic pad 203 to further reduce friction. To minimize movement after placement, the magnetic suction plate 202 is fixedly connected to the packaging box 1 via the connecting plate 201. The connecting plate 201 can be welded to the bottom of the metal packaging box 1. The purpose of setting the connecting plate 201 is to increase the contact area between the bottom of the packaging box 1 and the magnetic suction plate 202. The magnetic suction plate 202 cannot be welded and is generally fixed to the connecting plate 201 with curing adhesive. The base 2 also has a through hole 205 at the corner, extending from the upper surface of the connecting plate 201 to the lower surface of the elastic pad 203, to provide installation positions for bolts and other connecting parts, so that the micro-injection pump can be quickly fixed and also be fixed for a long time and stably.

[0032] Working principle: In use, first turn the handwheel 401 to bring the pressure plate 403 closer to the traction member 3. The telescopic rod 101 extends, moving the traction member 3 away from the packaging box 1. Insert the liquid reservoir of the syringe that has been purged of air into the bracket 5, so that the protruding handle at the end of the liquid reservoir abuts against the end of the bracket 5. The syringe plunger faces the pressure plate 403. Press the forward movement of the control area 103 to bring the traction member 3 closer to the packaging box 1 until the syringe plunger enters the positioning ring 404. At this time, the pressure plate 403 is not in contact with the syringe plunger. Turn the handwheel 401 in the opposite direction to move the pressure plate 403 away from the traction member 3 until it abuts against the syringe plunger, causing a small amount of liquid to spill from the syringe needle. Due to the contact friction between the pressure plate 403 and the syringe plunger, and the self-locking characteristics of the screw 402 and nut 302, the manual adjustment member 4 is also not affected by the reaction force of the syringe plunger. The pump rotates, allowing the electric telescopic component inside the packaging box 1 to precisely and stably push the syringe for micro-injection via the traction component 3. The base 2, placed on the steel platform, utilizes the weight of the main body of the micro-injection pump and the magnetic pressure of the magnetic suction plate 202 to generate strong contact friction between the elastic pad 203 and the contacting platform, ensuring stable placement. When the micro-injection pump needs to be moved after use, simply apply an upward pulling force through the hook plate 105 with your finger to lift one end of the base 2, easily and quickly releasing the pump from its fixed state. If an emergency stop is required, you can press the emergency stop button in the control area 103 or manually rotate the handwheel 401 to disengage the pressure plate 403 from the syringe plunger. The correct rotation direction is easily determined by the thread direction on the screw 402.

[0033] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A micro-syringe pump for easy fixation, characterized in that: The package includes a packaging box (1), one end of which extends a movable telescopic rod (101). A traction member (3) is fixedly connected to the end of the telescopic rod (101). A manual adjustment member (4) is provided on the traction member (3). The manual adjustment member (4) has a pressure plate (403) that can change the distance relative to the traction member (3). A bracket (5) is fixedly connected to the side of the packaging box (1) for mounting a syringe. A base (2) is fixedly connected to the bottom surface of the packaging box (1). The base (2) includes a magnetic suction plate (202) for adhering to a steel placement surface.

2. The microinfusion pump that facilitates securement of claim 1, wherein: One end of the traction member (3) is fixedly connected to a nut (302), the manual adjustment member (4) includes a screw (402) that cooperates with the nut (302), the pressure plate (403) is located at the end of the screw (402) facing the bracket (5), and the end of the screw (402) facing away from the bracket (5) is fixedly connected to a handwheel (401).

3. The microinfusion pump that facilitates securement of claim 2, wherein: The encapsulation box (1) is provided with a guide insertion hole (102) on the end face where the telescopic rod (101) is located. The other end of the traction member (3) is fixedly connected with a stabilizing insertion rod (301) parallel to the telescopic rod (101), which is suitable for cooperating with the guide insertion hole (102) to form a sliding pair.

4. The microinfusion pump that facilitates securement of claim 3, wherein: The edge of the pressure plate (403) has a positioning ring (404) coaxial with the screw (402), and the positioning ring (404) extends toward the bracket (5).

5. The microinfusion pump that facilitates securement of claim 4, wherein: The encapsulation box (1) has a control area (103) and a display screen (104) on the side facing away from the bracket (5). The encapsulation box (1) has an electric telescopic assembly, and the active output end of the electric telescopic assembly is connected to the telescopic rod (101).

6. The microinfusion pump that facilitates securement of claim 5, wherein: The packaging box (1) is provided with a hook plate (105) at the end facing away from the telescopic rod (101).

7. The microinfusion pump that facilitates securement of any one of claims 1-6, wherein: An elastic pad (203) is fixedly connected to the bottom surface of the magnetic suction plate (202), and a friction groove (204) is formed on the lower surface of the elastic pad (203).

8. The microinfusion pump that facilitates securement of claim 7, wherein: The magnetic plate (202) is fixedly connected to the packaging box (1) through the connecting plate (201), and the base (2) has a through hole (205) at the corner extending from the upper surface of the connecting plate (201) to the lower surface of the elastic pad (203).

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