WO2021073616A1 - 一种可透射x线的心肺复苏按压器 - Google Patents

一种可透射x线的心肺复苏按压器 Download PDF

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Publication number
WO2021073616A1
WO2021073616A1 PCT/CN2020/121611 CN2020121611W WO2021073616A1 WO 2021073616 A1 WO2021073616 A1 WO 2021073616A1 CN 2020121611 W CN2020121611 W CN 2020121611W WO 2021073616 A1 WO2021073616 A1 WO 2021073616A1
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WIPO (PCT)
Prior art keywords
air
control valve
valve
port
cavity
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PCT/CN2020/121611
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English (en)
French (fr)
Inventor
孔伟方
章军辉
方志庆
严跃明
方志平
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苏州尚领医疗科技有限公司
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Publication of WO2021073616A1 publication Critical patent/WO2021073616A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H31/00—Artificial respiration or heart stimulation, e.g. heart massage
    • A61H31/004—Heart stimulation
    • A61H31/006—Power driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5056—Control means thereof pneumatically controlled

Definitions

  • the present invention relates to the technical field of cardiopulmonary resuscitation pressing devices, in particular to a cardiopulmonary resuscitation pressing device capable of transmitting X-rays.
  • the cardiopulmonary resuscitation presser (hereinafter referred to as the presser) is one of the most commonly used and most important equipment in medical emergency. According to different power, the press can be divided into two categories: pneumatic and electric. However, both pneumatic and electric compressors cannot be directly used in clinical environments that require X-ray fluoroscopy due to the metal components inside.
  • X-ray fluoroscopy is often a clinical environment that is often faced in the process of first aid and rescue. For example, if the compression device needs to be excluded during the X-ray detection process, it will delay the precious rescue time. In addition, the operation in the cardiac catheterization laboratory needs to be performed under the guidance of X-ray images (due to the uncertainty of the operation, many countries have required rescue equipment such as compression devices in quality control), because the existing compression devices are not transparent. In the event of an accident, reinstalling the presser will delay the rescue time.
  • a presser capable of transmitting X-rays is provided to fill the gap in clinical use.
  • the technical problem to be solved by the present invention is to overcome the disadvantages of the existing cardiopulmonary resuscitation compression device that cannot transmit X-rays, and then provide a cardiopulmonary resuscitation compression device that can transmit X-rays.
  • a cardiopulmonary resuscitation presser capable of transmitting X-rays, comprising a pressing part and an electric control part, the pressing part and the electric control part are of a split structure, and the pressing part is made of a non-metallic material;
  • the part includes a pressing head, an air cylinder, and an air control valve.
  • the pressing head is connected to the piston ejection end of the air cylinder.
  • the air control valve is used to control the filling or exhausting of gas into the cylinder of the cylinder to drive
  • the pressing head performs a pressing action;
  • the air inlet of the air control valve is connected to an air source through an air inlet pipe, and the electronic control part communicates with the chamber of the air control valve through the air control pipe to control the air control
  • the spool of the valve reciprocates between the inflation position and the exhaust position, thereby controlling the ejection or contraction of the piston in the cylinder.
  • the air control valve includes a valve plate and a valve core, the lower end of the valve plate is screwed and sealed with the upper end of the cylinder body of the cylinder, and the piston is placed in the inner cavity of the cylinder body; the valve The body on the upper end of the plate is radially provided with a mounting cavity for accommodating the valve core. After the valve core penetrates into the mounting cavity in the radial direction from one end of the mounting cavity, both ends of the mounting cavity are closed to close the mounting cavity.
  • the valve core is limited in the installation cavity; the valve plate is provided with air holes adapted to the positions of the air inlet and outlet ports of the valve core.
  • the lower end of the valve plate is provided with a circular ring extending downward from the valve plate body, the inner side of the circular ring is provided with internal threads, and the outer side of the upper end of the cylinder is provided with external threads.
  • the cylinder is screw-sealedly connected with the internal thread of the ring through the external thread to form the piston operating cavity of the cylinder.
  • the outer diameter of the circular ring at the lower end of the valve plate is the same as and coaxial with the outer diameter of the valve plate body, and the bottom of the inner cavity of the circular ring is provided for filling the cylinder
  • At least one end of the valve core of the air control valve is provided with an air cavity, and the air cavity is connected to the air control port of the electric control valve on the electric control part through the air control tube.
  • the air inlet of the valve is connected with an air source, and the electronic control valve controls to inflate or discharge the gas in the air cavity to push the spool of the air control valve to move back and forth.
  • the body material of the pressing part is high-strength plastic.
  • both ends of the valve core of the air control valve are respectively provided with a first air cavity and a second air cavity, and the cross-sectional area of the first air cavity is smaller than the cross-sectional area of the second air cavity to facilitate When the two air chambers are filled with gas of equal pressure, the valve core of the air control valve is pushed to the side of the first air chamber.
  • the body of the air control valve is provided with the air inlet and the air control.
  • a valve exhaust port, an air control valve air supply port, the air control valve exhaust port is in communication with the atmosphere or a waste gas tank, the air control valve supply port is in communication with the air interface of the cylinder, the air control valve
  • the air supply port of the air control valve is connected to the air control valve intake port or the air control valve exhaust port;
  • the first air chamber is connected to The air source is always connected,
  • the second air cavity is connected to the air control port of the electric control valve through the air control tube, and the spool of the electric control valve is inflated or inflated into the second air cavity when the spool of the electric control valve moves back and forth.
  • the gas in the second gas cavity is released to push the valve core of the gas control valve to move back and forth.
  • both ends of the valve core of the air control valve are respectively provided with a first air cavity and a second air cavity, and the body of the air control valve is provided with the air inlet, air outlet, and air outlet.
  • the air control valve air supply port, the air control valve exhaust port is in communication with the atmosphere or the exhaust gas tank, the air control valve air supply port is in communication with the air interface of the cylinder, and the valve core of the air control valve is in the charging position
  • the air supply port of the air control valve is connected to the air control valve intake port or the air control valve exhaust port;
  • the electronic control valve has two air control ports, respectively A first air control port and a second air control port, the first air control port is in communication with the first air cavity of the air control valve, and the second air control port is in communication with the second air cavity;
  • the valve body of the electronic control valve is provided with a first air inlet, a first air outlet, a second air inlet, and a second air outlet, the first air inlet and the second air inlet.
  • the first intake port and the The first air control port is in communication
  • the second exhaust port is in communication with the second air control port
  • the first exhaust port is in communication with the first air control port
  • the second air inlet port is in communication with the second air control port.
  • the second air control port is connected.
  • one end of the electric control valve is connected to a controller, and the controller drives the spool of the electric control valve to move to one end away from the controller; the other end of the electric control valve is provided with a return spring, The return spring resists the valve core of the electric control valve and returns to the end where the controller is located.
  • one end of the valve core of the air control valve is provided with the air cavity, and the other end of the valve core of the air control valve is provided with a non-metallic air control valve core return spring, and the air control valve
  • the valve core return spring resists the air control valve valve core and returns to one side of the air cavity.
  • the electrical control valve is provided with an electrical control valve air control port, an electrical control valve air inlet, and an electrical control valve exhaust port, the electrical control valve air control port is in communication with the air cavity, and the electrical The air inlet of the control valve is in communication with the air source, and the exhaust port of the electronic control valve is in communication with the atmosphere or the exhaust gas tank; when the spool of the electronic control valve reciprocates, the air control port of the electronic control valve is connected to the electronic control valve The air inlet or the exhaust port of the electronic control valve is connected; one end of the electronic control valve is connected with a controller, the other end of the electronic control valve is provided with a return spring, and the controller drives the electric control valve The spool moves to the side away from the controller, and the return spring drives the spool of the electric control valve to move to the side of the controller.
  • the cross-sectional area of the first air cavity is between 40% and 60% of the cross-sectional area of the second air cavity.
  • the X-ray transparent cardiopulmonary resuscitation compression device of the present invention first selects an electro-pneumatic compression scheme, that is, compressed gas is used as the compression power and the compression process is electronically controlled, and the compression part and the electronic control part are divided into two independent parts In terms of structure, the current usual integrated structure is abandoned. The electronic control part and the pressing part are separated, and the two parts are connected by a gas path.
  • This design makes the entire pressing part made of non-metallic materials, which is suitable for patients in X
  • the demand for cardiopulmonary resuscitation compression under the clinical environment of radiography has filled the current clinical technical gap.
  • Figure 1 is a schematic diagram of the X-ray transparent cardiopulmonary resuscitation presser of the present invention
  • FIG. 2a is a schematic structural diagram of the air control valve on the X-ray transparent cardiopulmonary resuscitation presser of the present invention in the exhaust position or the initial position;
  • FIG. 2b is a schematic structural view of the air control valve on the X-ray transparent cardiopulmonary resuscitation presser of the present invention in the inflated position (pressing the head to perform the pressing action);
  • FIG. 3 is a schematic diagram of the cooperation of the second embodiment of the air control valve and the electric control part of the present invention.
  • FIG. 4 is a schematic diagram of the cooperation of the third embodiment of the air control valve and the electric control part of the present invention.
  • Fig. 6 is a structural schematic diagram of a sectional view taken from the A-A direction of Fig. 5 in the first embodiment of the valve body;
  • Fig. 7 is a schematic structural view of a cross-sectional view taken from the line A-A of Fig. 5 in the second embodiment of the valve body;
  • Fig. 8 is a structural schematic diagram of a cross-sectional view taken from the A-A direction of Fig. 5 in the third embodiment of the valve body.
  • a cardiopulmonary resuscitation presser capable of transmitting X-rays includes a pressing part 100 and an electric control part 200.
  • the pressing part 100 and the electric control part 200 are of a split structure.
  • Metal materials are mainly made of high-strength plastics (such as PBT+glass fiber/nylon+glass fiber/PPS+glass fiber/PPO+glass fiber/PES/PSU/PEEK, etc.), and the piston part is made of high-strength plastic with self-lubricating function
  • the pressing part 100 includes a pressing head 1, a cylinder 2, and an air control valve 3.
  • the pressing head 1 is connected to the ejection end of the piston 22 of the cylinder 2, and the air control valve 3 is used to control the direction of the
  • the cylinder body of the cylinder 2 is filled with gas or exhausted gas to drive the piston rod and the pressing head 1 to perform a pressing action;
  • the air inlet 33 of the air control valve 3 is connected to the air source 8 through the air inlet pipe 7, and the electric
  • the control unit 200 communicates with the chamber of the air control valve 3 through the air control tube 8 to control the spool of the air control valve 3 in the inflation position (shown in Figure 2a) and the exhaust position (shown in Figure 2b)
  • the reciprocating movement controls the ejection or contraction of the piston rod in the cylinder 2.
  • the X-ray transparent cardiopulmonary resuscitation compression device of the present invention preferably uses an electro-pneumatic compression scheme, that is, compressed gas is used as the compression power, and the compression process is electronically controlled, and the compression part and the electronic control part are divided into two independent parts , In the structure, abandon the current usual integrated structure, separate the electric control part and the pressing part, and the two parts are connected by the air circuit. This design can make the entire pressing part structure all made of non-metallic materials, which is suitable for the patient's heart and lungs. The clinical environment where X-ray transmission can be performed at the same time of resuscitation and compression, thus filling the current clinical technical gap.
  • the X-ray transparent cardiopulmonary resuscitation presser of the present invention adopts a two-stage air valve joint control structure to replace the large flow electric control valve, that is, the micro electric control valve controls the reciprocating movement of the large flow air control valve spool, and then Inflate the cylinder or discharge the gas in the cylinder to perform cardiopulmonary resuscitation pressing action.
  • the micro electric control valve controls the reciprocating movement of the large flow air control valve spool, and then Inflate the cylinder or discharge the gas in the cylinder to perform cardiopulmonary resuscitation pressing action.
  • the micro electric control valve is turned on/off, the cylinder can be quickly inflated/deflated to meet the pressing requirements.
  • the cylinder is driven and controlled by a large flow air control valve, and the movement of the spool of the large flow air control valve is controlled by a micro electric control valve.
  • the power consumption of the miniature electric control valve is very low, it can basically be controlled below 0.3W, and the voltage can be within 6V, and the large flow gas control valve does not need to consume electric energy, so it can greatly save power.
  • the gas circuit control of the present invention is adopted
  • the power consumption of the electro-pneumatic compression device of the system is only 10% of the traditional electro-pneumatic cardiopulmonary resuscitation device, and the total power consumption (including the control circuit) is about 20% of the original, which can save a lot of energy, which can be saved in actual use.
  • a large amount of electric energy can ensure that the electronic control volume of the electro-pneumatic cardiopulmonary resuscitation device is at an appropriate size.
  • the X-ray transparent cardiopulmonary resuscitation press device of the present invention greatly reduces the power consumption of the electro-pneumatic press device, and at the same time solves the problem of insufficient power in the clinical use of the electro-pneumatic press device, and makes "precision pressing" in clinical practice. It is truly popularized and promoted to save more lives of critical patients. Both economic and social benefits are great.
  • the specific forms of the electric control valve and the air control valve used in the X-ray transparent cardiopulmonary resuscitation presser of the present invention are not limited, as long as the cardiopulmonary resuscitation pressing action of the two-stage linkage control cylinder can be realized.
  • the air control valve 3 of this embodiment includes a valve plate 301 and a valve core 302.
  • the lower end of the valve plate 301 is in threaded and sealed connection with the upper end of the cylinder body 21 of the cylinder 2, and the piston 22 is placed thereon.
  • the body at the upper end of the valve plate 301 is radially provided with a mounting cavity 303 for accommodating the valve core 302, and the valve core 302 runs from one end of the mounting cavity 303 along the diameter After going deep into the installation cavity 303, both ends of the installation cavity 303 are closed to limit the valve core 303 in the installation cavity.
  • the valve core 302 and the installation cavity 303 of this embodiment are preferably arranged in a cylindrical structure, and the inner wall of the installation cavity 303 and the outer wall of the valve core are provided with mutually matched circumferential limiting structures for Limit the circumferential rotation of the spool.
  • the specific circumferential limit structure is not limited, as long as it can achieve the purpose of limiting the detection of circumferential rotation and at the same time facilitating installation (for example, by setting a flat key on the outside of the spool in contact with the installation cavity Keys or fasteners, etc.);
  • the valve plate 301 is provided with air holes adapted to the positions of the inlet and outlet ports of the valve core 302, so as to achieve pneumatic control of the valve core.
  • the lower end of the valve plate 301 is provided with a circular ring 304 extending downward from the body of the valve plate 301, the inner side of the circular ring 304 is provided with internal threads, and the outer side of the upper end of the cylinder 21 is provided There is an external thread, and the cylinder body 21 is sealed and connected with the internal thread of the ring 304 through the external thread to form a piston operating cavity of the cylinder body 21.
  • This structural form not only facilitates the assembly and connection of the valve plate and the cylinder body, but also the threaded connection can ensure the stability of the connection between the cylinder body and the valve plate, so as to ensure that the pressing head has sufficient pressing force during the pressing process of cardio-abdominal resuscitation.
  • the sealing connection of the connection between the lower end of the valve plate and the cylinder body can have multiple forms, such as setting a circumferential sealing ring at the outer thread of the upper end of the cylinder body, or adopting an interference fit to ensure the sealing of the connection Sex.
  • the outer diameter of the ring 304 at the lower end of the valve plate 301 is the same as the outer diameter of the body of the valve plate 301 and is coaxial.
  • the gas supply port 35 of the gas control valve filled with gas in the cylinder 21, and used to space the piston 22 in the cylinder 21 from the bottom of the inner cavity of the ring 304 to form an initial gas supply cavity 306 ⁇ Between protrusions 305.
  • the upper end surface of the piston abuts on the spacer protrusion 305, and the initial air supply chamber 306 is connected to the air supply pipeline through the air control valve air supply port 35, and the initial air supply chamber is set 306.
  • gas can be quickly injected into the initial air supply chamber 306 through the air control valve air supply port 35, because the initial air supply chamber 306 has a larger force area on the piston than the air control valve air supply port 35 , Under the condition of constant air supply pressure, the pressing action of the piston can be pushed quickly and stably.
  • the spacing protrusion 305 of this embodiment is preferably arranged in a circular ring structure, and the diameter of the circular ring structure is basically the same as the diameter of the piston, so as to form a resisting support and as large a pressing force as possible to the upper end of the piston. And compression stability.
  • the valve core of the air control valve 3 of the present invention is provided with an air cavity, and the air cavity passes through the air control tube 8 and the air of the electric control valve 4 on the electric control part 200.
  • the control port is connected.
  • the air inlet of the electronic control valve 4 is connected to a gas source.
  • the electronic control valve 4 controls to inflate into the air cavity or discharge the gas in the air cavity to drive the air control valve
  • the spool of 3 reciprocates between the inflation position and the exhaust position.
  • the air control valve 3 and the electric control valve 4 can have a variety of structural designs. In order to explain the technical solution of the present invention in more detail, the following three optimal structural designs will be listed, but this is not the case.
  • the limitation of the technical solutions, the present invention is not limited to the following, as long as the technical solutions improved based on the creative spirit of the present invention shall fall within the protection scope of the present invention.
  • the valve core of the air control valve 3 is provided with first An air chamber 31 and a second air chamber 32, the first air chamber 31 is in communication with the air source 5, the second air chamber 32 is in communication with the electronic control valve 4, and the cross-sectional area of the first air chamber 31 is smaller than The cross-sectional area of the second air cavity 32, preferably the cross-sectional area of the second air cavity 32 is twice that of the first air cavity 31, so that when the two air cavities are filled with gas of equal pressure, the gas
  • the valve core of the control valve 3 is pushed to the side of the first air chamber 31 (that is, pushed to the left side of Figure 2b, see the direction of the black arrow in Figure 2b), and the body of the air control valve 3 is provided with the The air intake port 33, the air control valve exhaust port 34, and the air control valve supply port 35.
  • the air control valve exhaust port 34 is in communication with the atmosphere to discharge exhaust gas directly into the atmosphere.
  • the air control valve supply port 35 is in communication with the air path interface of the cylinder to guide the flow into the initial air supply chamber 306, so as to push the piston down, or to draw out the gas in the cylinder to shrink the piston; the air control valve 3
  • the air supply port of the air control valve is connected to the air control valve intake port or the air control valve exhaust port, thereby realizing the ejection of the piston Or shrink.
  • the electronic control unit 200 empties the gas in the second gas chamber 32. Since the first gas chamber 31 is connected to the gas source 5, it is under the pressure of the gas. , The valve core 302 of the air control valve moves to connect the exhaust port of the air control valve with the air supply port of the air control valve (the direction of the black arrow in Figure 2a indicates that the valve core is pushed to the right).
  • the cavity is connected to the atmosphere through the air control valve supply port 35, the valve core 302 of the air control valve, and the air control valve exhaust port 34.
  • the piston cylinder is in a vented state, and the piston rod is retracted and reset under the elastic action of the patient's chest cavity; see figure 2b.
  • the electronic control unit 200 controls the injection of gas equal to the pressure of the gas source into the second air cavity 32 (connecting the second air cavity with the source), because the air control in the second air cavity 32
  • the cross-sectional area of the valve spool is larger than the cross-sectional area of the air control valve spool in the first air chamber 31.
  • the thrust of the second air chamber 32 on the air control valve spool is greater than that of the first air chamber 31
  • the thrust of the valve core of the air control valve therefore, the valve core 302 of the air control valve will move to the side of the first air chamber 31, thereby connecting the air inlet 33 and the air supply port 35 of the air control valve.
  • the gas enters the cylinder and pushes the piston downwards, which in turn drives the pressing head downwards to perform a pressing action.
  • the first air chamber 31 is always in communication with the air source 5
  • the second air chamber 32 is connected to the air control port of the electric control valve 4 through the air control tube 8, and the spool of the electric control valve reciprocates When moving, inflate into the second air cavity 32 or release the gas in the second air cavity 32 to push the spool of the air control valve to move back and forth.
  • the two ends of the valve core of the air control valve 3 are respectively provided with first air chambers 31,
  • the second air cavity 32, the cross-sectional area of the first air cavity 31 and the cross-sectional area of the second air cavity 32 need not be correlated, and the air inlet 33 is provided on the body of the air control valve 3 ,
  • the air control valve exhaust port 34, the air control valve supply port 35, the air control valve exhaust port 34 is in communication with the atmosphere, or in communication with an air extraction device to extract the gas in the cylinder, the air control valve
  • the air supply port 35 is in communication with the air interface of the cylinder.
  • the solenoid valve 4 has two air control ports, a first air control port 41 and a second air control port 42, the first air control port 41 is in communication with the first air chamber 31 of the air control valve 3, and the second air control port 42 is in communication with the second air chamber 32;
  • the valve body of the electronic control valve 4 is provided with a first air chamber An air inlet 43, a first air outlet 44, a second air inlet 45, and a second air outlet 46, the first air inlet 43 and the second air inlet 45 are respectively communicated with the air source 5,
  • the first exhaust port 44 and the second exhaust port 46 are respectively connected to the atmosphere, and when the spool of the electronic control valve 4 reciprocates, the first intake port 43 and the first air control port 41 is in communication, the second exhaust port 46 is in communication with the second air control port 42 or the first exhaust
  • the first air control port 41 constantly communicates the first air inlet 43 of the electronic control valve 4 with the first air chamber 31 of the air control valve 3, and the second air chamber 32 passes through the air control tube 8.
  • the second air control port 42, the second exhaust port 46 are kept in constant communication with the atmosphere, so in the first air chamber 31 there is a gas equal in pressure with the air source in the normal state, thereby pushing the spool of the air control valve 3 in
  • the inner cavity of the piston cylinder is kept in constant communication with the air control valve exhaust port through the air control valve air supply port 35, so that the piston cylinder maintains a normally vented state under normal conditions and the piston contracts.
  • the spool of the electronic control valve When the pressing action is performed, the spool of the electronic control valve is pushed until the first exhaust port 44 is in communication with the first air chamber, and the second air inlet 43 is in communication with the second air chamber to push the spool of the air control valve to be located
  • the air source fills the cylinder with gas through the valve core of the air control valve 3 and the air supply port 35 of the air control valve, and then pushes the cylinder downwards and drives the pressing head to perform a pressing action.
  • FIG. 4 there is a third embodiment of a pneumatic control valve and an electric control valve.
  • One end of the spool of the pneumatic control valve 3 is provided with the air chamber 36, and the pneumatic control valve 3
  • the other end of the valve core of the valve 3 is provided with a non-metallic air control valve core return spring 37.
  • the air control valve core return spring 37 resists the air control valve valve core and returns to the side of the air cavity 36. This type of setting can reduce the external air path.
  • the electrical control valve 4 is provided with an electrical control valve air control port 401, an electrical control valve air inlet 402, and an electrical control valve exhaust port 403.
  • the electrical control valve air control port 401 is in communication with the air chamber 36.
  • the air inlet 402 of the electric control valve is in communication with the air source 5, and the air outlet 403 of the electric control valve is in communication with the atmosphere; when the spool of the electric control valve 4 reciprocates, the air control port 401 of the electric control valve is connected to the The electrical control valve air inlet 402 or the electrical control valve exhaust port 403 is in communication; one end of the electrical control valve 4 is connected to the controller 6, and the other end of the electrical control valve 4 is provided with a return spring 47, the The controller 6 drives the spool of the electronic control valve 4 to move to the side away from the controller 6, and the return spring 47 drives the spool of the electronic control valve 4 to move to the side of the controller 6 .
  • the return spring 47 compresses and stores energy, and the gas enters the air chamber 36 through the electric control valve air inlet 402 and the electric control valve air supply port 401.
  • the gas chamber 36 is filled with gas and pushes the spool of the gas control valve 3 to move to the left.
  • the gas in the gas source 5 enters the cylinder through the gas control valve air inlet 33 and the gas control valve air supply port 35, and Push the cylinder downward to drive the pressing head to press down to complete the pressing action;
  • the return spring 47 drives the spool of the micro electronic control valve to move to the right, and the gas in the air chamber 36
  • the air is discharged through the air supply port of the electric control valve and the exhaust port of the electric control valve to provide a stroke space for the spool of the air control valve to move to the right.
  • the return spring of the air control spool releases energy and pushes the spool of the air control valve to the right.
  • the gas in the cylinder is discharged through the air supply port of the air control valve and the exhaust port of the air control valve.
  • the pressing head is pressed and the piston completes the rebound action.
  • the electric control valve of this embodiment only needs to control one air chamber on the air control valve, and the selected miniature electric control valve (or small electric control valve) has a relatively simple structure, and its valve body only needs one-way two-way (or Equivalent structure) on it.
  • the solenoid coil When the solenoid coil is not energized, the return spring pushes the valve core in the valve body to move to the right, so that the air chamber of the large flow air control valve is emptied, and the cylinder is also emptied.
  • the solenoid coil When the solenoid coil is energized, it will push the valve core in the valve body to move to the left against the elastic force of the spring, so that the air chamber of the large flow air control valve is inflated, and the cylinder is also inflated. In this way, as long as you control the on/off of the miniature electronic control valve, you can control the rapid charging/discharging of the cylinder, so as to meet the pressing requirements.
  • the right end of the electronic control valve 4 is connected to the controller 6, and the controller 6 drives the spool of the electronic control valve 4 to the end away from the controller 6 (the left end of Figure 2 ) To move; the other end of the electronic control valve 4 (left end of Figure 2) is provided with a return spring 47, the return spring 47 abuts the valve core of the electronic control valve to the end of the controller 6 (right end of Figure 2) ) Reset. That is, after the controller receives the execution signal, it drives the spool of the electric control valve to move to the left end of Fig. 2.
  • the return spring 47 is compressed and stored, and the cylinder moves downward with the pressing head to complete the pressing action; when the controller releases the electric power After the control valve spool is braked, under the action of the return spring 47, the electronic control valve spool is bounced to the right. At this time, the gas in the cylinder is released, and the cylinder drives the pressing head to rebound upward. In this way, as long as the on/off of the electric control valve is controlled, the rapid charging/discharging of the cylinder can be controlled to meet the pressing requirements.
  • the electric control valve 4 of the present invention preferably adopts a miniature electric control valve, and a controller 6 is connected to one end of the electric control valve 4, and the controller 6 drives the spool of the electric control valve 4 away from the controller 6.
  • the other end of the electronic control valve 4 is provided with a return spring 47, and the return spring 47 abuts against the spool of the electronic control valve 4 to reset to the end where the controller 6 is located.
  • the return spring 47 in the electronic control valve 4 can be made of traditional metal materials. Since the electronic control valve 4 and the controller 6 are separated from the pressing part, the components in the electronic control part 200 can be made of existing materials in the market.
  • the X-ray transparent cardiopulmonary resuscitation presser of the present invention meets the application requirements of patients in a clinical environment requiring X-ray transmission, and fills the current clinical technical gap.

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Abstract

本发明公开了一种可透射X线的心肺复苏按压器，其包括按压部和电控部，所述按压部和电控部为分体式结构，所述按压部由非金属材料制成，所述按压部包括按压头、气缸、气控阀，所述按压头与气缸的顶出端连接，所述气控阀用于控制向气缸的缸体内充入气体或排出气体以驱动按压头进行按压动作；所述气控阀的进气口通过进气管与气源连接，所述电控部通过气控管与气控阀的腔室连通以控制气控阀的阀芯在充气位置和排气位置往复移动，进而控制气缸内的活塞杆顶出或收缩。本发明的可透射X线的心肺复苏按压器适应了患者在需要X线透射的临床环境下的应用需求，填补了目前临床上的技术空白。

Description

一种可透射X线的心肺复苏按压器 技术领域
本发明涉及心肺复苏按压装置技术领域，特别是涉及一种可透射X线的心肺复苏按压器。
背景技术
心肺复苏按压器(以下简称按压器)是医疗急救最常用最重要的设备之一。按压器按动力不同可以分为气动和电动两大类。但无论是气动还是电动的按压器都由于内含金属部件而不能直接用于需要X线透视的临床环境。
而X线透视又往往是急救和抢救过程中经常面临的临床环境，如在X线检测过程中要排除按压器，会耽误宝贵的抢救时间。另外在心脏导管室做手术时需要在X线影像的引导下进行(由于手术的不确定性，许多国家已在质控中要求配备按压器等抢救设备)，由于现有的按压器不透X线，一旦发生意外再安装按压器会延误抢救时间。
所以，从临床上来说，亟需一种能透射X线的心肺复苏按压器，特别是对心脏导管室来说更具有十分重要的临床意义，所以本发明的目的既是要解决这一技术难题，提供一种能够透射X线的按压器以填补临床使用空白。
发明内容
为此，本发明要解决的技术问题是克服现有心肺复苏按压装置无法透射X射线的弊端，进而提供一种可透射X线的心肺复苏按压器。
为实现上述目的，本发明采用以下技术方案：
一种可透射X线的心肺复苏按压器，其包括按压部和电控部，所述按压部和所述电控部为分体式结构，所述按压部由非金属材料制成；所述按压部包括按压头、气缸、气控阀，所述按压头与所述气缸的活塞顶出端连接，所述气控阀用于控制向所述气缸的缸体内充入气体或排出气体以驱动所述按压头进行按压动作；所述气控阀的进气口通过进气管与气源连接，所述电控部通过气控管与所述气控阀的腔室连通以控制所述气控阀的阀芯在充气位置和排气位置往复移动，进而控制所述气缸内的所述活塞顶出或收缩。
优选地，所述气控阀包括阀板和阀芯，所述阀板的下端与所述气缸的缸体上端螺纹密封连接，所述活塞置于所述缸体的内腔中；所述阀板上端的本体沿径向设置有用于容纳所述阀芯的安装腔，所述阀芯从所述安装腔的一端沿径向深入所述安装腔后，所述安装腔两端封闭以将所述阀芯限位在所述安装腔内；所述阀板上开设有与所述阀芯的进、出气口位置适配的气孔。
优选地，所述阀板的下端设置有从阀板本体向下延伸的圆环，所述圆环的内侧面设置有内螺纹，所述缸体的上端的外侧面设置有外螺纹，所述缸体通过所述外螺纹与所述圆环的内螺纹螺纹密封连接形成所述缸体的活塞运行内腔。
优选地，所述阀板下端的所述圆环的外径与所述阀板本体的外径相同且同轴心，所述圆环的内腔底部设置有用于向所述缸体内充入气体的气控阀供气口，及用于将所述缸体内的所述活塞与所述圆环的内腔底部间隔开以形成初始供气腔的间隔凸起。
优选地，所述气控阀的阀芯的至少一端设置有气腔，所述气腔通 过所述气控管与所述电控部上的电控阀的气控口连接，所述电控阀的进气口与气源连接，所述电控阀控制向所述气腔内充气或将所述气腔内的气体排出以推动所述气控阀的阀芯往复移动。
优选地，所述按压部的本体材料为高强度塑料。
优选地，所述气控阀的阀芯两端分别设置有第一气腔、第二气腔，所述第一气腔的横截面积小于所述第二气腔的横截面积，以便于两个气腔内充入压力相等的气体时将所述气控阀的阀芯向所述第一气腔一侧推动，所述气控阀的本体上设置有所述进气口、气控阀排气口、气控阀供气口，所述气控阀排气口与大气或废气罐连通，所述气控阀供气口与所述气缸的气路接口连通，所述气控阀的阀芯在充气位置和排气位置往复移动时，所述气控阀供气口与所述气控阀进气口或所述气控阀排气口接通；所述第一气腔与气源常连通，所述第二气腔通过所述气控管与所述电控阀的气控口连接，所述电控阀的阀芯往复移动时向所述第二气腔内充气或将所述第二气腔内的气体放出以推动所述气控阀的阀芯往复移动。
优选地，所述气控阀的阀芯两端分别设置有第一气腔、第二气腔，所述气控阀的本体上设置有所述进气口、气控阀排气口、气控阀供气口，所述气控阀排气口与大气或废气罐连通，所述气控阀供气口与所述气缸的气路接口连通，所述气控阀的阀芯在充气位置和排气位置往复移动时所述气控阀供气口与所述气控阀进气口或所述气控阀排气口接通；所述电控阀具有两个气控口，分别为第一气控口和第二气控口，所述第一气控口与所述气控阀的所述第一气腔连通，所述第二气控口与所述第二气腔连通；所述电控阀的阀体上设置有第一进气口、第一排气口、第二进气口、第二排气口，所述第一进气口、所述第二进气口分别与气源连通，所述第一排气口、所述第二排气口分别与大 气或废气罐连通，所述电控阀的阀芯往复移动时所述第一进气口与所述第一气控口连通、所述第二排气口与所述第二气控口连通或所述第一排气口与所述第一气控口连通、所述第二进气口与所述第二气控口连通。
优选地，所述电控阀的一端连接控制器，所述控制器驱动所述电控阀的阀芯向远离所述控制器的一端移动；所述电控阀的另一端设置有复位弹簧，所述复位弹簧抵触所述电控阀的阀芯向所述控制器所在的一端复位。
优选地，所述气控阀的阀芯的一端端部设置有所述气腔，所述气控阀的阀芯的另一端设置有非金属材质的气控阀芯复位弹簧，所述气控阀芯复位弹簧抵触所述气控阀阀芯向所述气腔一侧复位。
优选地，所述电控阀上设置有电控阀气控口、电控阀进气口、电控阀排气口，所述电控阀气控口与所述气腔连通，所述电控阀进气口与气源连通，所述电控阀排气口与大气或废气罐连通；所述电控阀的阀芯往复移动时所述电控阀气控口与所述电控阀进气口或所述电控阀排气口连通；所述电控阀的一端与控制器连接，所述电控阀的另一端设置有复位弹簧，所述控制器驱动所述电控阀的阀芯向远离所述控制器的一侧移动，所述复位弹簧驱动所述电控阀的阀芯向所述控制器的一侧移动。
优选地，所述第一气腔的横截面积为所述第二气腔的横截面积的40％至60％之间。
本发明的可透射X线的心肺复苏按压器至少具有以下有益效果：
本发明的可透射X线的心肺复苏按压器首先选定电控气动的按 压方案，也即以压缩气体作为按压动力而按压过程采用电控，并使按压部与电控部分分成独立的两个部分，在结构上摒弃目前通常的一体结构，将电控部分和按压部分分离，两部分通过气路相连，这样设计可使整个按压部的结构全部为非金属材料制成，适应了患者在X线透射的临床环境下进行心肺复苏按压的需求，进而填补了目前临床上的技术空白。
附图说明
为了使本发明的内容更容易被清楚的理解，下面结合附图，对本发明作进一步详细的说明，其中：
图1是本发明的可透射X线的心肺复苏按压器的原理图；
图2a是本发明的可透射X线的心肺复苏按压器的上的气控阀位于排气位置或初始位置结构示意图；
图2b是本发明的可透射X线的心肺复苏按压器的上的气控阀位于充气位置(按压头进行按压动作)的结构示意图；
图3是本发明的气控阀和电控部的第二种实施方式的配合示意图；
图4是本发明的气控阀和电控部的第三种实施方式的配合示意图；
图5是本发明的按压部的剖视结构示意图；
图6是阀体第一种实施方式时从图5的A-A向剖视图结构示意图；
图7是阀体第二种实施方式时从图5的A-A向剖视图结构示意 图；
图8是阀体第三种实施方式时从图5的A-A向剖视图结构示意图。
图中附图标记表示为：
100-按压部；200-电控部；1-按压头；2-气缸；21-缸体；22-活塞；3-气控阀；31-第一气腔；32-第二气腔；33-进气口；34-气控阀排气口；35-气控阀供气口；36-气腔；37-气控阀芯复位弹簧；301-阀板；302-阀芯；303-安装腔；304-圆环；305-间隔凸起；306-初始供气腔；4-电控阀；41-第一气控口；42-第二气控口；43-第一进气口；44-第一排气口；45-第二进气口；46-第二排气口；47-复位弹簧；401-电控阀气控口；402-电控阀进气口；403-电控阀排气口；5-气源；6-控制器；7-进气管；8-气控管。
具体实施方式
参见图1，一种可透射X线的心肺复苏按压器，包括按压部100和电控部200，所述按压部100和所述电控部200为分体式结构，所述按压部100由非金属材料，主要采用高强度塑料制成(如PBT+玻纤/尼龙+玻纤/PPS+玻纤/PPO+玻纤/PES/PSU/PEEK等)，活塞部分则选择具有自润滑功能的高强度塑料制成，所述按压部100包括按压头1、气缸2、气控阀3，所述按压头1与所述气缸2的活塞22顶出端连接，所述气控阀3用于控制向所述气缸2的缸体内充入气体或排出气体以驱动活塞杆和所述按压头1进行按压动作；所述气控阀3的进气口33通过进气管7与气源8连接，所述电控部200通过气控管8与所述气控阀3的腔室连通以控制所述气控阀3的阀芯在充气位置(图2a所示)和排气位置(图2b所示位置)往复移动，以控制所述气缸2内的活塞杆顶出或收缩。
本发明的可透射X线的心肺复苏按压器优选电控气动的按压方案，也即以压缩气体作为按压动力，而按压过程采用电控，并使按压部与电控部分分成独立的两个部分，在结构上摒弃目前通常的一体结构，将电控部分和按压部分分离，两部分通过气路相连，这样设计可使整个按压部的结构全部为非金属材料制成，适应了患者在进行心肺复苏按压的同时能够进行X线透射的临床环境，进而填补了目前临床上的技术空白。
本发明的可透射X线的心肺复苏按压器采用两级气阀联控的结构来取代大流量电控阀，也即通过微型电控阀来控制大流量气控阀阀芯的往复移动，进而实现向气缸内充气或将气缸内的气体排出以进行心肺复苏按压动作，只要控制微型电控阀的通/断电，就可以控制气缸的快速充/放气，从而达到按压的要求。气缸由大流量的气控阀驱动控制，而该大流量的气控阀的阀芯的移动则由微型电控阀来控制。由于微型电控阀的功耗很低，基本可以控制在0.3W以下，并且电压可以在6V以内，而大流量的气控阀无需耗费电能，因此能够大大节约电量，采用本发明的气路控制系统的电控气动按压装置，其驱动功耗只有传统电控气动心肺复苏装置的10％，总功耗(包括控制电路)约为原来的20％左右，能够节约大量能量，实际使用时可以节省大量电能，因此能够保证电控气动心肺复苏装置的电控体积在合适的大小。
本发明的可透射X线的心肺复苏按压器极大地降低了电控气动按压装置的功耗，同时也解决了困扰电控气动按压器临床使用中电量不足的难题，使“精准按压”在临床上得到真正的普及和推广，从而挽救更多的危急病人的生命，无论经济效益还是社会效益都是极大的。本发明的可透射X线的心肺复苏按压器中所采 用的电控阀和气控阀的具体形式不限，只要能够实现两级联动控制气缸的心肺复苏按压动作即可。
参见图5，本实施例的所述气控阀3包括阀板301和阀芯302，所述阀板301的下端与所述气缸2的缸体21上端螺纹密封连接，所述活塞22置于所述缸体21的内腔中；所述阀板301上端的本体沿径向设置有用于容纳所述阀芯302的安装腔303，所述阀芯302从所述安装腔303的一端沿径向深入所述安装腔303内后，所述安装腔303两端封闭以将所述阀芯303限位在所述安装腔内。本实施例的所述阀芯302和所述安装腔303优选设置成圆柱形结构，在所述安装腔303的内壁和所述阀芯的外壁设置有相互配合的周向限位结构以用于限制阀芯的周向转动，具体周向限位结构形式不限，只要能够达到限制发现周向转动、同时又便于安装的目的即可(如通过在阀芯外侧与安装腔的接触设置平键键或紧固件等形式)；所述阀板301上开设有与所述阀芯302的进、出气口位置适配的气孔，以便对所述阀芯实现气动控制。
本实施例的所述阀板301的下端设置有从阀板301本体向下延伸的圆环304，所述圆环304的内侧面设置有内螺纹，所述缸体21的上端的外侧面设置有外螺纹，所述缸体21通过所述外螺纹与所述圆环304的内螺纹螺纹密封连接形成所述缸体21的活塞运行内腔。这种结构形式不仅便于阀板与缸体的装配连接，同时螺纹连接也能够保证缸体与阀板连接的稳定性，以保障在心腹复苏按压过程中按压头部具有足够的按压力度。所述阀板的下端与所述缸体的连接处的密封连接形式可有多重形式，如在缸体上端的外螺纹处设置周向的密封环，或采用过盈配合的形式保证连接的密封性。
本实施例的所述阀板301下端的所述圆环304的外径与所述阀板 301本体的外径相同且同轴心，所述圆环304的内腔底部设置有用于向所述缸体21内充入气体的气控阀供气口35，及用于将所述缸体21内的所述活塞22与所述圆环304的内腔底部间隔开以形成初始供气腔306的间隔凸起305。活塞22向上收缩至最大位置时，活塞的上端面抵触在所述间隔凸起305上，而初始供气腔306则通过气控阀供气口35与供气管路连接，通过设置初始供气腔306，在执行活塞按压动作时，可通过气控阀供气口35迅速向初始供气腔306内注入气体，由于初始供气腔306对活塞的施力面积要大于气控阀供气口35，在供气压力恒定的条件下，可快速稳定地推动活塞的按压动作。
参见图5，本实施例的间隔凸起305优选设置成圆环形结构，该圆环形结构的直接与所述活塞的直径基本相同，以便对活塞的上端形成抵触支撑及尽量大的按压推力和按压稳定性。
参见图1，本发明的所述气控阀3的阀芯的至少一端设置有气腔，所述气腔通过所述气控管8与所述电控部200上的电控阀4的气控口连接，所述电控阀4的进气口与气源连接，所述电控阀4控制向所述气腔内充气或将所述气腔内的气体排出以带动所述气控阀3的阀芯在充气位置和排气位置往复移动。为了达到这一技术目的，气控阀3与电控阀4可具有多种结构设计，为了更详细地说明本发明的技术方案，以下将列举最优的三种种结构设计，但这并不是对本技术方案的限制，本发明不限于如下几种，只要是基于本发明的创造精神而改进的技术方案都应在本发明的保护范围之内。
参见图1、图2a、图2b、图5、图6，为本发明的气控阀和电控部的第一种实施方式，所述气控阀3的阀芯两端分别设置有第一气腔31、第二气腔32，所述第一气腔31与气源5连通，所述第二气腔32 与电控阀4连通，所述第一气腔31的横截面积小于所述第二气腔32的横截面积，优选第二气腔32的横截面积为第一气腔31的两倍，以便于两个气腔内充入压力相等的气体时能够将所述气控阀3的阀芯向所述第一气腔31一侧推动(也即向图2b的左侧推动,参见图2b中黑色箭头方向)，所述气控阀3的本体上设置有所述进气口33、气控阀排气口34、气控阀供气口35，所述气控阀排气口34与大气连通，以将废气直接排入大气，所述气控阀供气口35与所述气缸的气路接口连通导流至所述初始供气腔306内，以便推动活塞下压，或将所述气缸内的气体抽出后使所述活塞收缩；所述气控阀3的阀芯在充气位置和排气位置往复移动时，所述气控阀供气口与所述气控阀进气口或与所述气控阀排气口接通，进而实现活塞的顶出或收缩。
参见图2a，在排气位置(初始位置)时，电控部200将第二气腔32内的气体排空，第一气腔31由于与气源5接通，则在气体的压力作用下，气控阀的阀芯302移动至将气控阀排气口与气控阀供气口接通(图2a中黑色箭头的方向表示阀芯被向右侧推动)，此时气缸2的内腔通过气控阀供气口35、气控阀的阀芯302、气控阀排气口34与大气相连通，活塞缸内处于放空状态，活塞杆在患者胸腔弹性作用下收缩复位；参见图2b,在充气位置时，所述电控部200控制向第二气腔32内注入与气源等压的气体(使第二气腔与起源接通)，由于第二气腔32内气控阀阀芯的横截面积大于第一气腔内31气控阀阀芯的横截面积，在相等的气体压力下，第二气腔32对气控阀阀芯的推力大于第一气腔31对气控阀阀芯的推力，因此，气控阀的阀芯302会向第一气腔31一侧移动，进而将进气口33与气控阀供气口35导通，气源内的气体进入缸体内，推动活塞向下顶出，进而带动按压头向下 进行按压动作。所述第一气腔31与气源5常连通，所述第二气腔32通过所述气控管8与所述电控阀4的气控口连接，所述电控阀的阀芯往复移动时向所述第二气腔内32充气或将所述第二气腔32内的气体放出以推动所述气控阀的阀芯往复移动。
参见图3、图5、图7，为第二种实施方式的气控阀3、电控阀4的配合关系，所述气控阀3的阀芯两端分别设置有第一气腔31、第二气腔32，所述第一气腔31的横截面积与所述第二气腔32的横截面积无需相关性，所述气控阀3的本体上设置有所述进气口33、气控阀排气口34、气控阀供气口35，所述气控阀排气口34与大气连通，或与抽气装置连通以将缸体内的气体抽出，所述气控阀供气口35与所述气缸的气路接口连通，所述气控阀3的阀芯在充气位置和排气位置往复移动时所述气控阀供气口35与所述气控阀进气口33或所述气控阀排气口34接通；所述电磁阀4具有两个气控口，分别为第一气控口41和第二气控口42，所述第一气控口41与所述气控阀3的所述第一气腔31连通，所述第二气控口42与所述第二气腔32连通；所述电控阀4的阀体上设置有第一进气口43、第一排气口44、第二进气口45、第二排气口46，所述第一进气口43、所述第二进气口45分别与气源5连通，所述第一排气口44、所述第二排气口46分别均大气连通，所述电控阀4的阀芯往复移动时所述第一进气口43与所述第一气控口41连通、所述第二排气口46与所述第二气控口42连通或所述第一排气口44与所述第一气控口41连通、所述第二进气口45与所述第二气控口42连通。在正常状态下所述第一气控口41将 电控阀4的第一进气口43与气控阀3的第一气腔31常连通，而第二气腔32则通过气控管8、第二气控口42、第二排气口46与大气保持常连通，因此第一气腔31内在正常状态下存留有与气源等压的气体，进而推动气控阀3的阀芯在第二气腔的一侧，使活塞缸的内腔通过气控阀供气口35与气控阀排气口保持常连通，以使活塞缸在正常状态下保持常放空的状态，活塞收缩。在进行按压动作时，则电控阀的阀芯推动至第一排气口44与第一气腔连通，第二进气口43与第二气腔连通，以推动气控阀的阀芯位于第一气腔一侧，气源通过气控阀3的阀芯、气控阀供气口35向缸体充入气体，进而推动气缸向下顶出，带动按压头进行按压动作。
参见图4、图5、图8，为气控阀与电控阀的第三种实施方式，所述气控阀3的阀芯的一端端部设置有所述气腔36，所述气控阀3的阀芯的另一端设置有非金属材质的气控阀芯复位弹簧37，所述气控阀芯复位弹簧37抵触所述气控阀阀芯向所述气腔36一侧复位，这种设置形式可减少外部气路。电控阀4上设置有电控阀气控口401、电控阀进气口402、电控阀排气口403，所述电控阀气控口401与所述气腔36连通，所述电控阀进气口402与气源5连通，所述电控阀排气口403与大气连通；所述电控阀4的阀芯往复移动时所述电控阀气控口401与所述电控阀进气口402或所述电控阀排气口403连通；所述电控阀4的一端与控制器6连接，所述电控阀4的另一端设置有复位弹簧47，所述控制器6驱动所述电控阀4的阀芯向远离所述控制器6的一侧移动，所述复位弹簧47驱动所述电控阀4的阀芯向所述控制器6的一侧移动。
当控制器6制动驱动电控阀的阀芯向左侧移动时，复位弹簧47压缩并储能，气体通过电控阀进气口402、电控阀供气口401进入气腔36内，气腔36内充进气体并推动气控阀3的阀芯向左侧移动，此时气源5内的气体通过气控阀进气口33、气控阀供气口35进入气缸内，并推动气缸向下运动进而带动按压头下压完成按压动作；当控制器释放微型电控阀的阀芯后，复位弹簧47驱动微型电控阀的阀芯向右侧移动，气腔36内的气体通过电控阀供气口、电控阀排气口排入空气以给气控阀的阀芯向右侧移动提供行程空间，气控阀芯复位弹簧释放能量并推动气控阀阀芯向右侧移动，气缸内的气体通过气控阀供气口、气控阀排气口将气体排出，按压头虽活塞完成按压回弹动作
本实施例的电控阀只需要控制气控阀上的一个气室，所选用的微型电控阀(或小型电控阀)的结构就比较简单，其阀体只需要单路双通(或等效结构)就可以了。当电磁线圈不通电时，复位弹簧推动阀体中的阀芯向右移动，使得大流量气控阀的气室放空，气缸也就放空。当电磁线圈通电时，将推动阀体中的阀芯克服弹簧弹力向左移动，使得大流量气控阀的气室充气，气缸也就充气。这样，只要控制微型电控阀的通/断电，就可以控制气缸的快速充/放气，从而达到按压的要求。
参见图4，本实施例中，所述电控阀4的右端连接控制器6，所述控制器6驱动所述电控阀4的阀芯向远离所述控制器6的一端(图2左端)移动；所述电控阀4的另一端(图2左端)设置有复位弹簧47，所述复位弹簧47抵触所述电控阀的阀芯向所述控制器6所在的一端(图2右端)复位。也即控制器接收执行信号后驱动电控阀的阀芯向图2的左端移动，此时复位弹簧47被压缩蓄能，气缸带着按压头向下运动完成按压动作；当控制器释放对电控阀阀芯的制动后，在 复位弹簧47的作用下，电控阀阀芯向被弹向右侧，此时气缸内的气体被释放，气缸带动按压头向上回弹。如此，只要控制电控阀的通/断电，就可以控制气缸的快速充/放气，从而达到按压的要求。
本发明的所述电控阀4优选采用微型电控阀，在电控阀4的一端连接控制器6，所述控制器6驱动所述电控阀4的阀芯向远离所述控制器6的一端移动；所述电控阀4的另一端设置有复位弹簧47，所述复位弹簧47抵触所述电控阀4的阀芯向所述控制器6所在的一端复位。电控阀4内的复位弹簧47可选择传统金属材质的，由于电控阀4、控制器6与按压部分离，因此电控部200中的各部件选用市场现有材料即可。
本发明的可透射X线的心肺复苏按压器适应了患者在需要X线透射的临床环境下的应用需求，填补了目前临床上的技术空白。
上述具体实施方式只是对本发明的技术方案进行详细解释，本发明并不只仅仅局限于上述实施例，本领域技术人员应该明白，凡是依据上述原理及精神在本发明基础上的改进、替代，都应在本发明的保护范围之内。

Claims (12)

  1. 一种可透射X线的心肺复苏按压器，其特征在于：包括按压部和电控部，所述按压部和所述电控部为分体式结构，所述按压部由非金属材料制成；所述按压部包括按压头、气缸、气控阀，所述按压头与所述气缸的活塞顶出端连接，所述气控阀用于控制向所述气缸的缸体内充入气体或排出气体以驱动所述按压头进行按压动作；所述气控阀的进气口通过进气管与气源连接，所述电控部通过气控管与所述气控阀的腔室连通以控制所述气控阀的阀芯在充气位置和排气位置往复移动，进而控制所述气缸内的所述活塞顶出或收缩。
  2. 根据权利要求1所述的可透射X线的心肺复苏按压器，其特征在于：所述气控阀包括阀板和阀芯，所述阀板的下端与所述气缸的缸体上端螺纹密封连接，所述活塞置于所述缸体的内腔中；所述阀板上端的本体沿径向设置有用于容纳所述阀芯的安装腔，所述阀芯从所述安装腔的一端沿径向深入所述安装腔后，所述安装腔两端封闭以将所述阀芯限位在所述安装腔内；所述阀板上开设有与所述阀芯的进、出气口位置适配的气孔。
  3. 根据权利要求2所述的可透射X线的心肺复苏按压器，其特征在于：所述阀板的下端设置有从阀板本体向下延伸的圆环，所述圆环的内侧面设置有内螺纹，所述缸体的上端的外侧面设置有外螺纹，所述缸体通过所述外螺纹与所述圆环的内螺纹螺纹密封连接形成所述缸体的活塞运行内腔。
  4. 根据权利要求3所述的可透射X线的心肺复苏按压器，其特征在于：所述阀板下端的所述圆环的外径与所述阀板本体的外径相同且同轴心，所述圆环的内腔底部设置有用于向所述缸体内充入气体的气控阀供气口，及用于将所述缸体内的所述活塞与所述圆环的内腔底部 间隔开以形成初始供气腔的间隔凸起。
  5. 根据权利要求1-4任一项所述的可透射X线的心肺复苏按压器，其特征在于：所述气控阀的阀芯的至少一端设置有气腔，所述气腔通过所述气控管与所述电控部上的电控阀的气控口连接，所述电控阀的进气口与气源连接，所述电控阀控制向所述气腔内充气或将所述气腔内的气体排出以推动所述气控阀的阀芯往复移动。
  6. 根据权利要求1-5任一项所述的可透射X线的心肺复苏按压器，其特征在于：所述按压部的本体材料为高强度塑料。
  7. 根据权利要求5或6所述的可透射X线的心肺复苏按压器，其特征在于：所述气控阀的阀芯两端分别设置有第一气腔、第二气腔，所述第一气腔的横截面积小于所述第二气腔的横截面积，以便于两个气腔内充入压力相等的气体时将所述气控阀的阀芯向所述第一气腔一侧推动，所述气控阀的本体上设置有所述进气口、气控阀排气口、气控阀供气口，所述气控阀排气口与大气或废气罐连通，所述气控阀供气口与所述气缸的气路接口连通，所述气控阀的阀芯在充气位置和排气位置往复移动时，所述气控阀供气口与所述气控阀进气口或所述气控阀排气口接通；所述第一气腔与气源常连通，所述第二气腔通过所述气控管与所述电控阀的气控口连接，所述电控阀的阀芯往复移动时向所述第二气腔内充气或将所述第二气腔内的气体放出以推动所述气控阀的阀芯往复移动。
  8. 根据权利要求5或6所述的可透射X线的心肺复苏按压器，其特征在于：所述气控阀的阀芯两端分别设置有第一气腔、第二气腔， 所述气控阀的本体上设置有所述进气口、气控阀排气口、气控阀供气口，所述气控阀排气口与大气或废气罐连通，所述气控阀供气口与所述气缸的气路接口连通，所述气控阀的阀芯在充气位置和排气位置往复移动时所述气控阀供气口与所述气控阀进气口或所述气控阀排气口接通；所述电控阀具有两个气控口，分别为第一气控口和第二气控口，所述第一气控口与所述气控阀的所述第一气腔连通，所述第二气控口与所述第二气腔连通；所述电控阀的阀体上设置有第一进气口、第一排气口、第二进气口、第二排气口，所述第一进气口、所述第二进气口分别与气源连通，所述第一排气口、所述第二排气口分别与大气或废气罐连通，所述电控阀的阀芯往复移动时所述第一进气口与所述第一气控口连通、所述第二排气口与所述第二气控口连通或所述第一排气口与所述第一气控口连通、所述第二进气口与所述第二气控口连通。
  9. 根据权利要求1-8任一项所述的可透射X线的心肺复苏按压器，其特征在于：所述电控阀的一端连接控制器，所述控制器驱动所述电控阀的阀芯向远离所述控制器的一端移动；所述电控阀的另一端设置有复位弹簧，所述复位弹簧抵触所述电控阀的阀芯向所述控制器所在的一端复位。
  10. 根据权利要求5或6所述的可透射X线的心肺复苏按压器，其特征在于：所述气控阀的阀芯的一端端部设置有所述气腔，所述气控阀的阀芯的另一端设置有非金属材质的气控阀芯复位弹簧，所述气控阀芯复位弹簧抵触所述气控阀阀芯向所述气腔一侧复位。
  11. 根据权利要求10所述的可透射X线的心肺复苏按压器，其特征在于：所述电控阀上设置有电控阀气控口、电控阀进气口、电控阀排气口，所述电控阀气控口与所述气腔连通，所述电控阀进气口与气源连通，所述电控阀排气口与大气或废气罐连通；所述电控阀的阀芯往复移动时所述电控阀气控口与所述电控阀进气口或所述电控阀排气口连通；所述电控阀的一端与控制器连接，所述电控阀的另一端设置有复位弹簧，所述控制器驱动所述电控阀的阀芯向远离所述控制器的一侧移动，所述复位弹簧驱动所述电控阀的阀芯向所述控制器的一侧移动。
  12. 根据权利要求7所述的可透射X线的心肺复苏按压器，其特征在于：所述第一气腔的横截面积为所述第二气腔的横截面积的40％至60％之间。
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