An electro-pneumatic intelligent syringe includes an injection assembly including a fixing component and a moving component, and a pneumatic assembly including an airway component and a pneumatic component. The electro-pneumatic intelligent syringe can operate intelligently and automatically, which provides equipment support for achieving automatic injection. The electro-pneumatic intelligent syringe can automatically complete the medicine suction and injection operations of the syringe without human control, has high degree of automation, unmanned isolation operation, strong intelligence, safety and efficiency, convenient use, and easy popularization, can avoid direct contact between doctors and patients during the injection process, can effectively reduce the possibility of medical staff being infected by viruses, and is conducive to protecting relevant medical staff, especially suitable for epidemic prevention and epidemic resistance of highly infectious diseases such as corona virus disease 2019 (COVID-19) vaccination and other occasions.

TECHNICAL FIELD

The disclosure relates to the technical field of medical equipment, and particularly to an electro-pneumatic intelligent syringe.

BACKGROUND

At present, due to the influence of corona virus disease 2019 (COVID-19), the task of epidemic prevention and fighting is heavy, and the workload of injection is increased. However, the current automatic injection equipments have the following shortcomings:1. No implementation plan for automatic injection has been found.2. Lack of solutions for implementing intelligent medicine suction processing equipment for automatic syringes.3. Lack of an executable solution for unmanned automatic completion of syringe suction.

SUMMARY

The disclosure provides an electro-pneumatic intelligent syringe to solve the problems in the prior art.

The electro-pneumatic intelligent syringe includes an injection assembly and a pneumatic assembly. The injection assembly includes a fixing component and a moving component, and the pneumatic assembly includes an airway component and a pneumatic component. The fixing component includes a syringe needle and a needle tube. And a bottom of the syringe needle is fixed to the needle tube, the syringe needle defines a hole penetrating through itself and the hole of the syringe needle is connected with a needle through hole defined on the needle tube, and an interlayer is provided between the needle tube and the syringe needle. The moving component includes a syringe plunger, a sealing stack embedded into a middle of the syringe plunger, and a sealing pressure rod provided on a side of the sealing stack facing towards the pneumatic assembly. The airway component includes a central airway, a plunger airway, and a pressure rod airway, and the central airway, the plunger airway and the pressure rod airway each extend along with a moving of the syringe plunger. The pneumatic component includes a suction-supply fan, a multi-way valve, a component framework, and a controller; and the suction-supply fan is connected to a fan mouth of the multi-way valve.

In an embodiment, a needle sealing door and an induction coil are disposed in the interlayer, and the needle sealing door is disposed on the needle through hole.

In an embodiment, a side of the sealing stack is connected with the needle tube, and another side of the sealing stack is fixedly connected with the central airway.

In an embodiment, the sealing pressure rod includes a pressure rod arm and an air-controlled pressure rod shaft, and the air-controlled pressure rod shaft is fixedly connected to the pressure rod airway.

In an embodiment, a side of the central airway is connected to a center mouth of the multi-way valve, another side of the central airway is connected to the sealing stack; a side of the plunger airway is connected to a plunger mouth of the multi-way valve, another side of the plunger airway is connected to the syringe plunger; a side of the pressure rod airway is connected to a pressure rod mouth of the multi-way valve, and another side of the pressure rod airway is connected to the sealing pressure rod.

In an embodiment, the controller is a system on a chip (SoC) microcontroller including a built-in memory, a central processing unit (CPU), interfaces detection and driving circuits, a wireless communication module, a wireless charging circuit, a BLUETOOTH module.

In an embodiment, a material of the component framework is a plastic frame with high-strength and non-toxic.

The technical effects of the disclosure are as follows.

The electro-pneumatic intelligent syringe can automatically complete the treatment of medicine suction and injection of the syringe without human control, has high degree of automation, unmanned isolation operation, strong intelligence, safety and efficiency, convenient use and easy popularization, can avoid direct contact between doctors and patients during the injection process, can effectively reduce the possibility of medical staff being infected by viruses, and is conducive to protecting relevant medical staff, especially suitable for epidemic prevention and epidemic resistance of highly infectious diseases such as COVID-19 vaccination and other occasions.

DETAILED DESCRIPTION OF EMBODIMENTS

It should be noted that in the absence of conflicts, the embodiments and the features in the embodiments of the disclosure can be combined with each other. The following will refer to the attached drawings and combine with embodiments to provide a detailed explanation of the disclosure.

As shown inFIGS.1-4, an electro-pneumatic intelligent syringe is provided.

The electro-pneumatic intelligent syringe includes an injection assembly and a pneumatic assembly. The injection assembly includes a fixing component and a moving component, and the pneumatic assembly includes an airway component and a pneumatic component.

The fixing component mainly includes a syringe needle1, a needle tube2, a needle sealing door3and an induction coil4, which are used to complete a suction, containment, or an injection of a medicine solution. The syringe needle1is a hollow needle made of stainless steel, a bottom of the syringe needle1is fixedly connected to the needle tube2, and the syringe needle1defines a hole penetrating through itself and the hole of the syringe needle1is connected with a needle through hole5defined on the needle tube2. The needle tube2is a wear-resistant, high-strength and non-toxic plastic tube, an end of the needle tube2is fixedly connected to the syringe needle1, the medicine solution can be sucked or discharged through the needle through hole5in an interlayer and the hole of the syringe needle1. The needle sealing door3is a BLUETOOTH controlled electromagnetic sealing door with micro low-power, the BLUETOOTH controlled electromagnetic sealing door is composed of a micro waterproof direct current (DC) power electromagnetic push rod referred to as the electromagnetic push rod12, and a micro sealing door made of a high-strength, non-toxic and wear-resistant plastic. In an initial or unoperated state, the needle sealing door3is automatically closed to block the needle through hole5between the syringe needle1and the needle tube2. Under the control of a BLUETOOTH signal of a controller19, the electromagnetic push rod12can drive the needle sealing door3to open the needle through hole5, thus, the needle sealing door3is controlled by the BLUETOOTH signal of the controller19. The induction coil4is a wireless power electromagnetic induction coil with an alternating current and direct current (AC/DC) power converter7, which can supply power to the needle sealing door3.

The moving component includes a syringe plunger6, a sealing stack8, a sealing pressure rod9, which are all embedded in the needle tube2, the syringe plunger6can move inside the needle tube2, and providing power for the needle tube2to suction or discharge the medicine solution. The syringe plunger6is a wear-resistant, high-strength, non-toxic plastic hollow disc that is fixedly connected to a plunger airway10and can move back and forth in the needle tube2under the drive of the airflow in the plunger airway10. A middle of the syringe plunger6is embedded with the sealing stack8, and the sealing pressure rod9is provided on a side of the sealing stack8facing towards the pneumatic assembly. The sealing stack8is a high-strength, high toughness, wear-resistant, and non-toxic plastic sheet group coated with a wear-resistant sealing flexible coating on its surface, and the sealing stack8is a unidirectional opening and self-closing stacking group, with a side connected to the needle tube2and another side fixedly connected to a central airway11. In a natural state, the sealing stack8is interlocked and self-sealing, under the action of a suction airflow in a central airway11, the sealing stack8can open towards a direction of the pneumatic component, after the suction airflow disappears, the self-sealing of the sealing stack8will automatically resume. The sealing pressure rod9is a micro pneumatic curved high-strength and non-toxic plastic rod fixed on a wall of the plunger, which includes a pressure rod arm22and an air-controlled pressure rod shaft23, and the air-controlled pressure rod shaft22is fixedly connected to a pressure rod airway15. In a state of no external force effect, the pressure rod arm22is buckled on the sealing stack8, so that the sealing stack8cannot be opened. When the air flow in the pressure rod airway15is operated under negative pressure on the air-controlled pressure rod shaft23, the air-controlled pressure rod shaft23drives the pressure rod arm22to open, and the sealing stack8is in a state that can be opened. When the pressure rod airway15release the air, and the air-controlled pressure rod shaft23return to normal pressure, then the air-controlled pressure rod shaft23drives the pressure rod arm22to automatically reset, and the pressure rod arm22buckles on the sealing stack8, so that the sealing stack8cannot be opened.

The airway component mainly includes a central airway11, a plunger airway10, and a pressure rod airway15, which are all composed of non-toxic silica gel foldable tubes with high-strength, wear-resistance, high toughness, and high elasticity. In a natural state, the central airway11, the plunger airway10, and the pressure rod airway15are contraction and can be extended as needed with the movement of the plunger to transport and control the airflow of the moving component. The central airway11is connected to a center mouth21of the multi-way valve13and the sealing stack8of the moving component. The central airway11is an airflow channel that opens the sealing stack8through suction airflow and implements negative pressure operations on the needle tube2. A side of the plunger airway10is connected to a plunger mouth14of the multi-way valve13, another side of the plunger airway10is connected to the syringe plunger6. The plunger airway10is an airflow channel that causes the plunger to move back and forth within the needle tube2by suctioning and delivering the airflow. A side of the pressure rod airway15is connected to a pressure rod mouth16of the multi-way valve13, and another side of the pressure rod airway15is connected to the sealing pressure rod9. The pressure rod airway15generates the negative pressure through suction, causing the air-controlled pressure rod shaft23to drive the pressure rod arm22to open the airflow channels.

The pneumatic component mainly includes a suction-supply fan17, a multi-way valve13, a component framework18and the controller19, which are used to drive, control, and operate other components. The suction-supply fan17is a micro high-efficiency electrically controlled shockproof and waterproof suction-supply fan, the suction-supply fan17is connected to a fan mouth20of the multi-way valve13, which can perform suction and supply operations. It is an important source of power for the device and provides pneumatic support for other components. The multi-way valve13is a microelectronic controlled one-way multi-way solenoid valve, with the fan mouth20as its input mouth, the center mouth21, the plunger mouth14, and the pressure rod mouth16as its output mouths. The input mouth can be controlled to select any output mouth, but only one output mouth can be selected at the same time. The multi-way valve13can close any output mouth, and the closed output mouth is in a closed state, neither inhaling nor delivering air. The function of multi-way valve13is to switch and connect one pneumatic source with three demand ends. The component framework18is a high-strength and non-toxic plastic framework used to fix, support, and install various equipment of the components.

The use and working process of the electro-pneumatic intelligent syringe are as follows:

1. The controller19communicates wirelessly with a medical of cloud center of the medical Internet of things (IOT), and receives relevant instructions and preset parameters. Under the command control of the controller19, each component of the electro-pneumatic intelligent syringe enters the initial state, and the syringe plunger6retracts to the bottom of the needle tube2; and the electro-pneumatic intelligent syringe prepares operations.

2. The sealing pressure rod9is opened. The controller19instructs the fan mouth20of the multi-way valve13to connect with the pressure rod mouth16, and the suction-supply fan17starts the suction operation, causing negative pressure to form in the pressure rod airway15, and the negative pressure makes the pneumatic pressure rod shaft23drive the pressure rod arm22to open, thus the sealing stack8is in an openable state. The pressure rod mouth16of the multi-way valve13is closed, negative pressure is maintained in the pressure rod airway15, and the sealing pressure rod9continues to open.

3. Negative pressure operation of the needle tube. The controller19instructs the fan mouth20of the multi-way valve13to connect to the center mouth21, causing the airflow in the center airway11to generate suction and form the negative pressure, and the sealing stack8is opened. The sealing stack8is open to make the needle tube2connected to the central airway11, and then the needle tube2is generated suction to form the negative pressure. When the center mouth21of the multi-way valve13is closed, the sealing stack8is closed automatically. And the suction-supply fan17is shut down, and the fan mouth20of the multi-way valve13is connected to the pressure rod mouth16. The negative pressure in the pressure rod airway15is relieved, and the sealing pressure rod9automatically resets to buckling the sealing stack8.

4. Absorption operation. Both ends of the needle tube2are sealed by the needle sealing door3and the sealing stack8correspondingly, and the negative pressure inside needle tube2continues to be maintained. Then the fan mouth20of the multi-way valve13is connected to the center mouth21to relieve the negative pressure inside the center airway11. After the negative pressure inside the center airway11is relieved, the syringe needle1is inserted into a bottle with the medicine solution, then the controller19instructs the needle sealing door3to open, and the negative pressure in the needle tube2make the medicine solution flow into the needle tube2from the bottle until the medicine solution in the bottle is suctioned completely. After the medicine solution is suctioned completely, the needle sealing door3is closed, and the medicine solution is maintained in the needle tube2.

5. Injection operation. The controller19receives a signal for needle1to penetrate the skin and instructs the needle sealing door3to open, the fan mouth20of the multi-way valve13is connected with the plunger mouth14. The suction-supply fan17starts the air supply operation, and conveying airflow can flow into the plunger airway10through the fan mouth20of the multi-way valve13and the plunger mouth14, then the conveying airflow in the plunger airway10pushes the syringe plunger6forward until the syringe plunger6is pushed down to the top of the needle tube2, followed by discharging all the medicine solution. And then the needle sealing door3is closed.

6. All components restore the initial states, restore the positions, and complete the operations. And the controller19uploads the relevant data to the medical IOT cloud center.

The above is only the preferred specific embodiment of the disclosure, but the scope of protection of the disclosure is not limited to this. Any change or replacement that can be easily thought of by those skilled in the art within the technical scope disclosed in the disclosure should be covered by the disclosure. Therefore, the protection scope of the disclosure should be based on the protection scope of the claims.