A new drug injection device and its isolation assembly

Abstract

The utility model provides a novel medicine injection device and its isolation subassembly, its isolation film is used for setting isolation to the power source part of medicine injection device, the rotary valve door isolation subassembly includes the valve door isolation bottom plate and the rotary valve door isolation cover of rotation of fixed connection with isolation film, the valve door isolation bottom plate can be fixedly connected with valve control host computer, the rotary valve door isolation cover is covered on the valve rotary seat of corresponding valve control host computer, rotates together with valve rotary seat, syringe clamping isolation subassembly includes first isolation cover and second isolation cover of fixed connection with isolation film, first isolation cover or second isolation cover can be covered on the fixed base or movable seat of syringe control host computer, second isolation cover can move together with movable seat. The utility model can replace the doctor in the radiation environment and execute medicine injection, can make complicated valve control and syringe bolus operation automation, ensure the isolation of sterile environment and the environment with bacteria.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a novel drug injection device and its isolation component. Background Technology

[0002] Minimally invasive interventional therapy is a major treatment method for cardiovascular and cerebrovascular diseases. Guided by fluoroscopic imaging equipment, interventional instruments are used to diagnose and treat diseases through physiological cavities. Compared with traditional surgery, it has significant advantages such as better efficacy, higher safety, smaller incisions, and shorter postoperative recovery time.

[0003] The main steps in vascular interventional surgery include femoral / radial artery puncture, coordinated advancement of the guidewire and angiography catheter, digital subtraction angiography (DSA), coordinated advancement of the treatment guidewire and balloon catheter, and placement of the vascular stent. The coordinated advancement of the guidewire, catheter, and balloon catheter is the most time-consuming step and requires X-ray-guided image navigation. Currently, vascular interventional surgery is usually performed manually by a surgeon. During the procedure, because DSA emits X-rays, the surgeon needs to wear a heavy lead apron, which leads to a rapid decline in physical strength, reduced attention, and decreased stability, resulting in decreased operational precision and an increased risk of accidents such as endothelial damage, vascular perforation, and rupture due to improper pushing force, endangering the patient's life. Furthermore, long-term wearing of lead aprons can damage the surgeon's spine. Secondly, the cumulative damage from long-term ionizing radiation significantly increases the surgeon's risk of leukemia, cancer, and acute cataracts. Therefore, to protect the health of surgeons and ensure surgical quality, research and development of interventional surgical robots are increasing, and more and more robots are being used clinically.

[0004] When administering medications (such as contrast agents, heparinized saline, or nitroglycerin) during cardiovascular interventional procedures, doctors need to inject the medication into the patient's vascular system through an interventional catheter for procedures such as vascular imaging. For example, when administering contrast agents, current technology involves manual operation by doctors, which is not convenient for quantitative administration. This is because doctors need to rely on their own operational experience to make stable quantitative administration, which places high demands on their skills. Furthermore, doctors are also exposed to radiation during the operation. If an automated device is to be used to complete the injection of medication, the problem of aseptic isolation needs to be solved to ensure that the medication and sterile consumables such as syringes are in a sterile environment. Utility Model Content

[0005] The purpose of this invention is to provide a novel drug injection device and its isolation components to address existing technical deficiencies and unmet technical requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An isolation component of a novel drug injection device includes an isolation membrane, a rotary valve isolation component, and a syringe clamping isolation component;

[0008] The isolation membrane is used to cover and isolate the power source part of the drug injection device;

[0009] The rotary valve isolation assembly includes a valve isolation base plate fixedly connected to the isolation membrane and a rotary valve isolation cover rotatably mounted on the valve isolation base plate. The valve isolation base plate is fixedly connected to the valve control host. The rotary valve isolation cover is sleeved on the valve rotating seat of the corresponding valve control host and rotates together with the valve rotating seat.

[0010] The syringe clamping isolation assembly includes a first isolation cover and a second isolation cover fixedly connected to the isolation membrane. The first isolation cover is fitted onto the fixed base of the syringe control host, and the corresponding second isolation cover is fitted onto the movable base of the syringe control host. The second isolation cover moves together with the movable base.

[0011] Preferably, a first pressure cap is connected to the first isolation cover, and the first pressure cap presses the limiting structure of the syringe barrel inside the first isolation cover to prevent the syringe barrel from moving.

[0012] A second pressure cap is connected to the second isolation cover, which presses the limiting structure of the syringe piston rod into the second isolation cover.

[0013] Preferably, the valve isolation base plate is provided with a locking assembly, which locks and fixes the valve body of the valve assembly to the valve isolation base plate, so that the valve control handle of the valve assembly is placed on the corresponding rotary valve isolation cover, and the valve rotation seat of the valve control host indirectly drives the valve control handle to rotate through the rotary valve isolation cover.

[0014] The locking assembly also securely connects the valve isolation base plate to the valve control host. The locking assembly is one or a combination of threaded structure, snap-fit ​​structure, or locking structure.

[0015] Preferably, the rotation axis of the rotary valve isolation cover is perpendicular to the valve isolation base plate, and multiple rotary valve isolation covers are provided on the valve isolation base plate. The positions of multiple valve rotating seats, rotary valve isolation covers, and valve control handles of valve assemblies correspond one-to-one.

[0016] Preferably, the first isolation cover and the second isolation cover are respectively provided with a first housing limiting structure in the shape of a protrusion. The inner surface of the first housing limiting structure is adapted to the shape of the first protrusion limiting structure of the fixed seat and the movable seat, respectively. The outer surface of the first housing limiting structure is adapted to the shape of the limiting structure on the syringe barrel and the piston rod of the syringe, respectively.

[0017] The first protruding limiting structure and the first housing limiting structure are two concave shapes distributed on both sides, and the groove portions of the two concave shapes are arranged opposite each other.

[0018] Preferably, it also includes a vibration clamping isolation component, which includes a clamp seat fixedly connected to the isolation membrane, a clamp connected to the clamp seat, the clamp seat being fixedly connected to the ultrasonic vibrator of the valve control host, and a clamping groove formed between the clamp seat and the clamp that is adapted to the shape of the syringe barrel. When the syringe barrel is placed on the clamping groove, the clamp can press the syringe barrel onto the clamp seat.

[0019] Preferably, it further includes a bubble detection pipeline, which includes a detection tube fixedly connected to the isolation membrane. The detection tube includes pipeline connection portions at both ends and a detection portion in the middle. The pipeline connection portions of the detection tube extend to the outside of the isolation membrane, and the detection portion of the detection tube extends to the inside of the isolation membrane.

[0020] A novel drug injection device includes a syringe control module, a valve assembly control module, and an isolation assembly. The syringe control module includes a syringe control host and a syringe. The syringe control host has a fixed seat and a movable seat. The limiting structure of the syringe barrel is fixedly mounted on the fixed seat through a first isolation cover, and the limiting structure of the syringe piston rod is fixed on the movable seat through a second isolation cover. The power source of the syringe control host controls the reciprocating movement of the movable seat, thereby controlling the reciprocating movement of the syringe piston rod. The valve assembly control module includes a valve control host and a valve assembly. The valve assembly includes a valve body and a valve control handle. The valve body is fixed to the valve control host through a valve isolation base plate. A valve rotating seat is rotatably mounted on the valve control host. The power source of the valve control host drives the valve rotating seat to rotate, and the valve rotating seat drives the corresponding valve control handle to rotate through the rotating valve isolation cover, thereby switching different pathways.

[0021] Preferably, the syringe control module further includes a bubble vibration mechanism capable of vibrating and floating the bubbles inside the syringe. The bubble vibration mechanism is an ultrasonic vibrator, which is fixed on the syringe control host. A clamp seat is fixedly connected to the ultrasonic vibrator, and a clamp is connected to the clamp seat. The clamp seat and the clamp form a clamping groove that is adapted to the shape of the syringe barrel. When the syringe barrel is placed on the clamping groove, the clamp can press the syringe barrel onto the clamp seat, so that the ultrasonic waves can be smoothly transmitted from the ultrasonic vibrator to the syringe barrel.

[0022] Preferably, the valve assembly control module further includes a bubble sensor capable of detecting the bubble content in the injected liquid. The bubble sensor is fixed on the valve control host and located inside the isolation membrane. The pipeline connection of the detection tube extends to the outside of the isolation membrane for connection with the output channel of the valve body in a sterile environment. The detection part of the detection tube extends to the inside of the isolation membrane for placement on the bubble sensor in a sterile environment. The bubble sensor detects the bubble content of the injected liquid inside the detection tube through the tube wall.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. Drug injection devices can replace doctors in administering contrast agents, heparinized saline, nitroglycerin, etc., in a radiation environment, avoiding radiation damage to doctors. Furthermore, drug injection devices can automate complex valve control and syringe injection operations, allowing a single surgeon to remotely control the device to deliver guidewires and catheters while simultaneously administering contrast agents, heparinized saline, nitroglycerin, etc., avoiding situations where different doctors have difficulty coordinating.

[0025] 2. The isolation membrane, rotary valve isolation assembly, and syringe clamping isolation assembly can isolate the power source of the drug injection device, ensuring the isolation between the sterile and sterile environments without affecting the drug injection device's injection operation.

[0026] 3. The rotary valve isolation component not only isolates the valve control host and the valve assembly, but also allows for power transmission between the two, thereby switching between different paths.

[0027] 4. The syringe clamping and isolating assembly not only isolates the syringe control unit and the syringe, but also transmits power between the two, thereby controlling the reciprocating movement of the syringe piston rod.

[0028] 5. The bubble detection isolation component can ensure the isolation between the sterile environment and the sterile environment without affecting the bubble sensor's detection of the bubble content in the injected liquid;

[0029] 6. The bubble sensor detects the bubble content in the injected liquid, and the bubble vibration mechanism drives the bubbles in the injected liquid to float to the surface, ensuring that no gas is injected during the injection process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0031] Figure 2 This is a schematic diagram of the waste liquid collection bag structure of Embodiment 1 of this utility model;

[0032] Figure 3This is a schematic diagram of the drug injection device according to Embodiment 1 of this utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the drug injection device of Embodiment 1 of this utility model after being isolated by the isolation membrane;

[0034] Figure 5 This is a schematic diagram of the syringe control module according to Embodiment 1 of this utility model;

[0035] Figure 6 This is a schematic diagram of the valve assembly control module according to Embodiment 1 of this utility model;

[0036] Figure 7 This is a schematic diagram of the rotary valve isolation assembly according to Embodiment 1 of this utility model;

[0037] Figure 8 This is a schematic diagram of the syringe clamping and isolating assembly according to Embodiment 1 of this utility model;

[0038] Figure 9 This is a schematic diagram of the structure of the first or second isolation cover in Embodiment 1 of this utility model;

[0039] Figure 10 This is a structural schematic diagram of the fixed base or movable base of Embodiment 1 of this utility model;

[0040] Figure 11 This is a schematic diagram of the structure of the drug injection device with an ultrasonic vibrator and a bubble sensor according to Embodiment 1 of this utility model;

[0041] Figure 12 for Figure 11 A schematic diagram of the structure after being isolated by the isolation membrane;

[0042] Figure 13 for Figure 11 A schematic diagram of the bubble detection pipeline after it is isolated by the isolation membrane. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 utility model.

[0045] 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 one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] Example 1

[0047] A novel drug injection device includes a syringe control module, a valve assembly control module, and an isolation component. The syringe control module includes a syringe control host and a syringe. The syringe control host has a fixed base and a movable base. The limiting structure of the syringe barrel is fixedly mounted on the fixed base by a first isolation cover, and the limiting structure of the syringe piston rod is fixed on the movable base by a second isolation cover. The power source of the syringe control host controls the reciprocating movement of the movable base, thereby controlling the reciprocating movement of the syringe piston rod. The valve assembly control module includes a valve control host and a valve assembly. The valve assembly includes a valve body and a valve control handle. The valve body is fixed to the valve control host by a valve isolation base plate. A valve rotating seat is rotatably mounted on the valve control host. The power source of the valve control host drives the valve rotating seat to rotate, and the valve rotating seat drives the corresponding valve control handle to rotate by rotating the valve isolation cover, thereby switching different pathways.

[0048] Specifically, such as Figures 1-5As shown, the drug injection device includes a syringe control module 10220701 and a valve assembly control module 10220702. The syringe control module 10220701 includes a syringe control host 1022070101 and a syringe 1022070102. The syringe control host 1022070101 is provided with a fixed seat 1022070103 and a movable seat 1022070104. The limiting structure of the syringe barrel of the syringe 1022070102 is fixedly mounted on the fixed seat 1022070103, and the limiting structure of the piston rod of the syringe 1022070102 is fixed on the movable seat 1022070104. The power source of the syringe control host 1022070101 controls the reciprocating movement of the movable seat 1022070104, thereby controlling the reciprocating movement of the piston rod of the syringe 1022070102. Figure 10 As shown, the fixed base 1022070103 and the movable base 1022070104 are provided with a first protruding limiting structure 1022070105;

[0049] The power source of the syringe control host 1022070101 controls the reciprocating movement of the moving base 1022070104, preferably using a combination of a motor and a lead screw and nut structure.

[0050] like Figure 6 As shown, the valve assembly control module 10220702 includes a valve control host 1022070201 and a valve assembly. The valve assembly includes a valve body 1022070202 and a valve control handle 1022070203. The valve body 1022070202 is fixedly mounted on the valve control host 1022070201. A valve rotating seat 1022070204 is rotatably mounted on the valve control host 1022070201. The power source of the valve control host 1022070201 drives the valve rotating seat 1022070204 to rotate, which in turn drives the corresponding valve control handle 1022070203 to rotate, thereby switching different paths. Figure 6 This is a schematic diagram of the state without the rotary valve isolation cover 1060202 installed. After the rotary valve isolation cover is installed, the valve rotating seat 1022070204 indirectly drives the valve control handle 1022070203 to rotate through the rotary valve isolation cover 1060202.

[0051] The valve control host 1022070201 is equipped with a motor, and the output shaft of the motor drives the corresponding valve rotating seat 1022070204 to rotate through a rotating docking structure.

[0052] like Figure 1 and Figure 2The valve assembly includes multiple rotary valves connected in series. Each rotary valve includes an output control valve 201 and at least one drug supply valve. One end of the output channel 207 of the valve assembly is connected to the first output port of the output control valve 201, and the other end of the output channel 207 is connected to a branch of the bifurcation valve on the hand device 101. Blood can be drawn from the interventional consumables tubing of the hand device 101 or different drugs can be injected into the interventional consumables tubing by a syringe 1022070102 along the output channel 207. The second output port of the output control valve 201 is connected to a waste collection bag 202, through which the drawn blood is collected. Each drug supply valve is connected to a different drug supply device.

[0053] like Figure 2 Each rotary valve is a three-way valve; this embodiment uses a five-way three-way valve. The liquid supply valve includes a first liquid supply valve 203, a second liquid supply valve 204, a third liquid supply valve 205, and a fourth liquid supply valve 206. The third output port of the output control valve 201 is connected to the first output port of the first liquid supply valve 203. The second output port of the first liquid supply valve 203 is connected to the first liquid supply device. The third output port of the first liquid supply valve 203 is connected to the first output port of the second liquid supply valve 204. The second liquid supply... The second output port of valve 204 is connected to the second drug supply device. The third output port of the second drug supply valve 204 is connected to the first output port of the third drug supply valve 205. The second output port of the third drug supply valve 205 is connected to the third drug supply device. The third output port of the third drug supply valve 205 is connected to the first output port of the fourth drug supply valve 206. The second output port of the fourth drug supply valve 206 is connected to the fourth drug supply device. The third output port of the fourth drug supply valve 206 is connected to the output end of the syringe.

[0054] First, control the output control valve 201 to connect the output channel 207 of the valve assembly to the syringe, and disconnect the connection between the waste liquid collection bag 202 and the syringe. Then, control the piston rod to move backward, drawing out the blood containing the embolus through the output channel 207. Next, control the output control valve 201 to connect the waste liquid collection bag 202 to the syringe, and disconnect the connection between the output channel 207 of the valve assembly and the syringe. Then, control the piston rod to move forward, draining the blood containing the embolus into the waste liquid collection bag 202, ensuring that there are no more embolus in the pipeline.

[0055] Figures 7-13As shown, a novel isolation component for a drug injection device includes an isolation membrane, a rotary valve isolation component, and a syringe clamping isolation component. The isolation membrane is used to isolate the power source of the drug injection device. The isolation membrane 106 is equipped with a syringe clamping isolation component 10601 and a rotary valve isolation component 10602. The rotary valve isolation component 10602 includes a valve isolation base plate 1060201 fixedly connected to the isolation membrane 106 and a rotary valve isolation cover 1060202 rotatably mounted on the valve isolation base plate 1060201. The valve isolation base plate 1060201 is fixedly connected to a valve control host via a quick-release structure. The valve isolation cover 1060202 is fitted onto the valve rotating seat 1022070204 of the corresponding valve control host. The valve isolation cover 1060202 rotates together with the valve rotating seat 1022070204. The valve body 1022070202 is locked and fixed onto the valve isolation base plate 1060201 by the locking assembly, so that the valve control handle 1022070203 of the valve assembly is placed on the corresponding rotating valve isolation cover 1060202. The valve rotating seat 1022070204 of the valve control host indirectly drives the valve control handle 1022070203 to rotate through the rotating valve isolation cover 1060202.

[0056] The locking assembly also securely connects the valve isolation base plate to the valve control host. The locking assembly is one or a combination of threaded structure, snap-fit ​​structure, or locking structure.

[0057] The rotation axis of the rotary valve isolation cover 1060202 is perpendicular to the valve isolation base plate 1060201. Multiple rotary valve isolation covers 1060202 are provided on the valve isolation base plate 1060201. The positions of multiple valve rotating seats 1022070204, rotary valve isolation covers 1060202, and valve control handles 1022070203 correspond one-to-one.

[0058] The syringe clamping isolation assembly 10601 includes a first isolation cover 1060101 and a second isolation cover 1060102 fixedly connected to the isolation membrane 106. A first pressure cap 1060103 is connected to the first isolation cover 1060101, and a second pressure cap 1060104 is connected to the second isolation cover 1060102. The first isolation cover 1060101 is covered by a fixed base 1022070103, and the second isolation cover 1060102 is covered by a movable base 1022070104. The second isolation cover can move together with the movable base. When the limiting structure of the syringe barrel is placed inside the first isolation cover 1060101, the first pressure cap 1060103 can press the limiting structure of the syringe barrel inside the first isolation cover 1060101 to prevent the syringe barrel from moving. When the limiting structure of the syringe piston rod is placed inside the second isolation cover 1060102, the second pressure cap 1060104 can press the limiting structure of the syringe piston rod inside the second isolation cover 1060102. Alternatively, the first isolation cover 1060101 can be fitted onto the movable seat 1022070104, and the second isolation cover 1060102 can be fitted onto the fixed seat 1022070103. The limiting structure of the syringe barrel can be a limiting block fixedly or integrally set on the syringe barrel, and the limiting structure of the piston rod can be a limiting block fixedly or integrally set on the piston rod.

[0059] like Figure 9 and Figure 10 As shown, the first isolation cover 1060101 and the second isolation cover 1060102 are respectively provided with a first housing limiting structure 1060105 in a protruding shape. The inner surface of the first housing limiting structure 1060105 is adapted to the shape of the first protruding limiting structure 1022070105 of the fixed seat 1022070103 and the movable seat 1022070104, respectively. The outer surface of the first housing limiting structure 1060105 is adapted to the shape of the limiting structure on the syringe barrel and the piston rod of the syringe, respectively.

[0060] The first protrusion limiting structure 1022070105 and the first shell limiting structure 1060105 are two concave shapes distributed on both sides, and the groove portions of the two concave shapes are arranged opposite each other.

[0061] like Figures 11-12 As shown, the syringe control module also includes a bubble vibration mechanism that can vibrate and float the bubbles in the syringe. The bubble vibration mechanism is an ultrasonic vibrator 108, which is fixed on the syringe control host 1022070101. The ultrasonic vibrator 108 is connected to the syringe barrel of the syringe through an ultrasonic wave conductor, and the ultrasonic vibrator 108 drives the syringe barrel of the syringe to vibrate.

[0062] The ultrasonic wave conductor is a vibration clamping isolation assembly installed on the isolation membrane 106. The vibration clamping isolation assembly includes a clamp seat 10802 fixedly connected to the isolation membrane 106, and a clamp 10801 connected to the clamp seat 10802. The clamp seat 10802 is fixedly connected to the ultrasonic vibrator 108 through a quick-release structure. The clamp seat 10802 and the clamp 10801 form a clamping groove that matches the shape of the syringe barrel. When the syringe barrel is placed in the clamping groove, the clamp 10801 can press the syringe barrel of the syringe onto the clamp seat 10802, so that the ultrasonic waves can be smoothly transmitted from the ultrasonic vibrator 108 to the syringe barrel.

[0063] The valve assembly control module also includes a bubble sensor 109 capable of detecting the bubble content in the injected liquid. The bubble sensor 109 is fixed on the valve control host and located below the isolation membrane 106.

[0064] like Figure 13 It is also equipped with a bubble detection pipeline, which includes a detection tube 10901 fixedly connected to the isolation membrane 106. The detection tube 10901 includes a pipeline connection portion 1090101 at both ends and a detection portion 1090102 in the middle. The pipeline connection portion 1090101 of the detection tube 10901 extends to the outside of the isolation membrane 106 for connection to the valve body connector and branch of the bifurcation valve in a sterile environment. The detection portion 1090102 of the detection tube 10901 extends to the inside of the isolation membrane 106 for placement on the bubble sensor 109 in a sterile environment. The bubble sensor 109 detects the content of injection liquid bubbles inside the detection tube 10901 through the tube wall of the detection tube 10901.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An isolation component of a novel drug injection device, characterized in that, This includes an isolation membrane, a rotary valve isolation assembly, and a syringe clamping isolation assembly; The isolation membrane is used to cover and isolate the power source part of the drug injection device; The rotary valve isolation assembly includes a valve isolation base plate fixedly connected to the isolation membrane and a rotary valve isolation cover rotatably mounted on the valve isolation base plate. The valve isolation base plate is fixedly connected to the valve control host. The rotary valve isolation cover is sleeved on the valve rotating seat of the corresponding valve control host and rotates together with the valve rotating seat. The syringe clamping isolation assembly includes a first isolation cover and a second isolation cover fixedly connected to the isolation membrane. The first isolation cover is fitted onto the fixed base of the syringe control host, and the corresponding second isolation cover is fitted onto the movable base of the syringe control host. The second isolation cover moves together with the movable base.

2. The isolation component of a novel drug injection device according to claim 1, characterized in that, A first pressure cap is connected to the first isolation cover. The first pressure cap presses the limiting structure of the syringe barrel inside the first isolation cover to prevent the syringe barrel from moving. A second pressure cap is connected to the second isolation cover, which presses the limiting structure of the syringe piston rod into the second isolation cover.

3. The isolation component of a novel drug injection device according to claim 1, characterized in that, The valve isolation base plate is equipped with a locking assembly, which locks and fixes the valve body of the valve assembly to the valve isolation base plate, so that the valve control handle of the valve assembly is placed on the corresponding rotary valve isolation cover, and the valve rotation seat of the valve control host indirectly drives the valve control handle to rotate through the rotary valve isolation cover. The locking assembly also securely connects the valve isolation base plate to the valve control host. The locking assembly is one or a combination of threaded structure, snap-fit ​​structure, or locking structure.

4. The isolation component of a novel drug injection device according to claim 1, characterized in that, The rotation axis of the rotary valve isolation cover is perpendicular to the valve isolation base plate. Multiple rotary valve isolation covers are provided on the valve isolation base plate, and the positions of multiple valve rotating seats, rotary valve isolation covers, and valve control handles of valve assemblies correspond one-to-one.

5. The isolation component of a novel drug injection device according to claim 1, characterized in that, The first isolation cover and the second isolation cover are respectively provided with a first housing limiting structure in the shape of a protrusion. The inner surface of the first housing limiting structure is adapted to the shape of the first protrusion limiting structure of the fixed seat and the movable seat, respectively. The outer surface of the first housing limiting structure is adapted to the shape of the limiting structure on the syringe barrel and the piston rod of the syringe, respectively. The first protruding limiting structure and the first housing limiting structure are two concave shapes distributed on both sides, and the groove portions of the two concave shapes are arranged opposite each other.

6. The isolation component of a novel drug injection device according to claim 1, characterized in that, It also includes a vibration clamping isolation assembly, which includes a clamp seat fixedly connected to the isolation membrane, a clamp connected to the clamp seat, and the clamp seat fixedly connected to the ultrasonic vibrator of the valve control host. The clamp seat and the clamp form a clamping groove that is adapted to the shape of the syringe barrel. When the syringe barrel is placed on the clamping groove, the clamp can press the syringe barrel of the syringe onto the clamp seat.

7. The isolation component of a novel drug injection device according to claim 1, characterized in that, It also includes a bubble detection pipeline, which includes a detection tube fixedly connected to the isolation membrane. The detection tube includes pipeline connection parts at both ends and a detection part in the middle. The pipeline connection parts of the detection tube extend to the outside of the isolation membrane, and the detection part of the detection tube extends to the inside of the isolation membrane.

8. A novel drug injection device, characterized in that, The device includes a syringe control module, a valve assembly control module, and an isolation component as described in any one of claims 1-7. The syringe control module includes a syringe control host and a syringe. The syringe control host is provided with a fixed seat and a movable seat. The limiting structure of the syringe barrel is fixedly mounted on the fixed seat through a first isolation cover, and the limiting structure of the syringe piston rod is fixed on the movable seat through a second isolation cover. The power source of the syringe control host controls the reciprocating movement of the movable seat, thereby controlling the reciprocating movement of the syringe piston rod. The valve assembly control module includes a valve control host and a valve assembly. The valve assembly includes a valve body and a valve control handle. The valve body is fixed to the valve control host through a valve isolation base plate. A valve rotating seat is rotatably mounted on the valve control host. The power source of the valve control host drives the valve rotating seat to rotate. The valve rotating seat drives the corresponding valve control handle to rotate through the rotating valve isolation cover, thereby switching different paths.

9. A novel drug injection device according to claim 8, characterized in that, The syringe control module also includes a bubble vibration mechanism that can vibrate and float the bubbles in the syringe. The bubble vibration mechanism is an ultrasonic vibrator, which is fixed on the syringe control host. A clamp seat is fixedly connected to the ultrasonic vibrator, and a clamp is connected to the clamp seat. The clamp seat and the clamp form a clamping groove that is adapted to the shape of the syringe barrel. When the syringe barrel is placed on the clamping groove, the clamp can press the syringe barrel on the clamp seat, so that the ultrasonic waves can be smoothly transmitted from the ultrasonic vibrator to the syringe barrel.

10. A novel drug injection device according to claim 8, characterized in that, The valve assembly control module also includes a bubble sensor capable of detecting the bubble content in the injected liquid. The bubble sensor is fixed on the valve control host and located inside the isolation membrane. The pipeline connection of the detection tube extends to the outside of the isolation membrane for connection with the output channel of the valve body in a sterile environment. The detection part of the detection tube extends to the inside of the isolation membrane for placement on the bubble sensor in a sterile environment. The bubble sensor detects the bubble content of the injected liquid inside the detection tube through the tube wall.

Images