CN113332124A - A rescue device for lung critically ill - Google Patents

Abstract

The invention discloses a rescue device for critical lung diseases, which comprises a base, a shell and a supporting rod, wherein the base is provided with a first support plate and a second support plate; one end of the base is connected with a supporting rod, the other end of the supporting rod is connected with a shell, an air supply mechanism is arranged in the shell, one side of the air supply mechanism is connected with a first pressurization mechanism, the other side of the air supply mechanism is connected with a second pressurization mechanism, a main oxygen cylinder is arranged above the first pressurization mechanism, and an auxiliary oxygen cylinder is arranged above the second pressurization mechanism; the main oxygen cylinder and the auxiliary oxygen cylinder are both communicated with the air supply mechanism through the arranged air inlet pipe; carry out intermittent type oxygen suppliment through setting up first booster mechanism of air feed mechanism cooperation and second booster mechanism, drive the pressure head through pneumatic mode and can guarantee to the rescuer when leading to oxygen, press and lead to the uniformity that oxygen kept the height, ensure that the thorax when recovering, have enough oxygen to supply with and apply certain gas pressure, help getting into rescuer lung.

Description

A rescue device for lung critically ill

Technical Field

The invention belongs to the field of heart and lung emergency treatment instruments, and particularly relates to a rescue device for critical lung diseases.

Background

Sudden cardiac arrest refers to sudden cardiac arrest caused by various reasons and unexpected conditions and time, which causes sudden interruption of effective cardiac pump function and effective circulation, resulting in severe ischemia, hypoxia and metabolic disturbance of tissue cells of the whole body, and sudden cardiac arrest causes respiratory arrest, and the lung cannot enter new air and supply oxygen to the whole body, and can immediately lose life if no rescue is performed in time. Sudden cardiac arrest causes a respiratory arrest different from any cardiac arrest at the end of the chronic disease, and if a correct and effective resuscitation is taken in time, the patient may be saved from life and recovered.

At present, the cardiopulmonary resuscitation generally stays in a manual chest compression mode, and rescues are carried out through artificial respiration on rescuers at the intermission of chest compression, but the manual rescue generally needs professional medical care personnel to carry out rescue through system learning and training, ordinary people often lack emergency experience, so that the optimal rescue time is missed, the optimal treatment time is delayed, and unfortunate events are caused; some treatment instruments such as cardiac pacemakers exist in the market at present, firstly, the treatment instruments need to be operated by professional personnel, and when the traditional treatment instruments can only perform cardiac pacing generally, other nurse personnel can supply oxygen to rescuers, so that the conventional treatment instruments can be used, the heart pressing and oxygen supply are difficult to achieve accurate synchronization, the emergency treatment effect is greatly reduced, and the success rate of cardiopulmonary resuscitation is reduced.

Chinese patent application No. 201710436211.3 discloses the portable pressing device of cardiopulmonary resuscitation artificial respiration first aid innovation sets up presses down guard shield and activity press the board, can more make things convenient for effectively accurately and scientifically carry out the extrathoracic heart and press the cardiopulmonary resuscitation operation, and compression air bag and gas storage bag automatic collection and stored air connect respirator and oronasal buckle cover and carry fresh air for the object of suing and labouring, carry air to internal through the nasal cavity and the oral cavity of the object of suing and labouring simultaneously. Above-mentioned technical scheme, hardly accomplish unifying to the frequency of pressing and the frequency of ventilating to the patient, need two at least people's cooperations to rescue in addition, and the rescue is inefficient, and mechanical ventilation is difficult to accomplish with pressing and is synchronous, influences the treatment effect.

Chinese patent application No. 200820024236.9 discloses an electronic first aid machine of breathing, including gauze mask, gasbag, be equipped with the breather pipe in the gauze mask, the breather pipe is connected with the gas outlet of gasbag through the connecting tube, and the gasbag top is equipped with the control lever, is connected with electric control device on the control lever, and the gas outlet department of gasbag is equipped with one-way air outlet valve, and the gas inlet department of gasbag is equipped with one-way admission valve. When the mask is used, the mask is buckled at the mouth of a patient, the vent pipe is inserted into the mouth of the patient, and then the electric control device is started, so that the contraction of the air bag is controlled, and air is sent to the body of the patient. Among the above-mentioned technical scheme, adopt mechanical mode, ventilate through the gasbag, can only carry out the ventilation of fixed frequency to the patient, can not change the frequency, the suitability is lower.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a rescue device for critical lung diseases, an air supply mechanism is arranged to cooperate with a first supercharging mechanism and a second supercharging mechanism to supply oxygen intermittently, meanwhile, a pneumatic turbine is arranged to drive a pressure head to perform intermittent pressing to perform cardio-pulmonary resuscitation and treatment, the pressure head is driven in a pneumatic mode to ensure that the pressing and oxygen supplying are kept highly consistent when a rescuer is charged with oxygen, the chest cavity is ensured to have enough oxygen supply and apply certain gas pressure when being recovered, the rescue device is beneficial to entering the lungs of the rescuer, and meanwhile, the oxygen can be saved when the rescuer is not charged.

The invention provides the following technical scheme:

a rescue device for critical lung comprises a base, a shell and a supporting rod; one end of the base is connected with a supporting rod, the other end of the supporting rod is connected with a shell, an air supply mechanism is arranged in the shell, one side of the air supply mechanism is connected with a first pressurization mechanism, the other side of the air supply mechanism is connected with a second pressurization mechanism, a main oxygen cylinder is arranged above the first pressurization mechanism, and an auxiliary oxygen cylinder is arranged above the second pressurization mechanism; the main oxygen cylinder and the auxiliary oxygen cylinder are both communicated with the air supply mechanism through the arranged air inlet pipe;

the gas collecting pipe is connected below the first supercharging mechanism and the second supercharging mechanism, the other end of the gas collecting pipe is connected with a box body, the box body is arranged below the gas supply mechanism, the outer side wall of the box body is connected with the shell, the box body is of a sealing structure, a gas turbine is arranged inside the box body, the gas turbine is rotatably connected with the inner wall of the box body through a bearing, one side of the gas turbine is connected with a crankshaft, the crankshaft penetrates through the box body and is connected with a connecting rod, the connecting rod penetrates through the shell and is in clearance connection with the shell, and the other end of the connecting rod is connected with a pressure head; one end of the box body, which is far away from the gas collecting pipe, is connected with an air supply pipe, and the other end of the air supply pipe is connected with an air tap.

Preferably, the air supply mechanism is of a hollow structure in the cuboid, a piston plate is arranged in the air supply mechanism, the piston plate is in airtight sliding connection with the inner wall of the air supply mechanism, one side of the piston plate is connected with a sliding rod, and the other end of the sliding rod penetrates through the outer wall of the air supply mechanism and forms clearance sliding connection; the other end of the sliding rod is provided with a sliding groove in a matching manner, and the sliding rod and the sliding groove form sliding connection.

Preferably, the bottom of the sliding chute is provided with a fixed plate, the fixed plate is connected with the inner wall of the shell, and the upper side of the sliding rod is connected with a sliding block; the sliding block is connected with the groove in the cam in a sliding mode in a matched mode, the cam is connected with a private server motor and driven by a servo motor, and the servo motor is connected with the shell.

Preferably, both sides below the gas supply mechanism are connected with gas pipes which are communicated with the first supercharging mechanism and the second supercharging mechanism through the gas pipes, the outer side wall of the joint of the gas pipes and the gas supply mechanism is provided with an outer sealing door, and the outer sealing door is rotationally connected with the outer side wall of the gas supply mechanism through a hinge; one end of the air supply mechanism far away from the servo motor is connected with an air inlet pipe, the air inlet pipe is communicated with the main oxygen cylinder and the auxiliary oxygen cylinder, an inner sealing door is arranged on the inner side wall of the joint of the air supply pipe and the air supply mechanism, and the inner sealing door is rotatably connected with the inner side wall of the air supply mechanism through a hinge.

Preferably, the first supercharging mechanism and the second supercharging mechanism have the same structure and are symmetrically arranged on two sides of the air supply mechanism; first booster mechanism and second booster mechanism are inside all to be provided with first baffle, first baffle forms first plenum chamber with the lateral wall, first plenum chamber one side is connected with the gas-supply pipe, communicates through gas-supply pipe and air feed mechanism, be equipped with the pressure boost mouth in the first plenum chamber, pressure boost mouth opposite side intercommunication discharge.

Preferably, a second partition plate is arranged on the other side of the first partition plate, the second partition plate of the first partition plate forms a second plenum chamber, and the cross section of the second plenum chamber is in a trapezoidal structure; the first partition plate is provided with a first air port which is an air inlet of a second pressurizing chamber, the first partition plate is further provided with a second air port which is an air outlet, and the second air port is close to one side of the air collecting pipe and communicated with the air collecting pipe.

Preferably, the interior of the pressure head is of a hollow structure, the connecting rod penetrates through the wall of the pressure head and is in clearance sliding connection with the wall of the pressure head, the connecting rod is connected with a connecting plate after penetrating through the connecting rod, the connecting plate is arranged in the pressure head, the other side of the connecting plate is connected with a spring, the other end of the spring is connected with the inner side wall of the pressure head, sensors are arranged on two sides of the spring and are connected with the connecting plate; and a silica gel layer is arranged on the pressure head.

Preferably, the free end of the air supply pipe is connected with an air tap, the air tap is provided with a respirator, and the air tap is arranged on the concave side of the respirator.

Preferably, the system also comprises an MCU, a signal detection module, an analysis processing module, a wireless communication module, an alarm module and a power supply module; the signal detection module receives the signals from the sensors converted by the A/D conversion module, monitors the degree of pressing through the MCU, and extracts characteristic parameters of the pressure signals through the analysis processing module.

Preferably, the method for extracting the characteristic parameters of the pressure signal includes:

s1: the analysis processing module receives the pressing oscillogram after the pressure information is subjected to A/D conversion;

s2: obtaining the current waveform slope, and if the slope is positive, carrying out 6-8 times of continuous detection;

s3: repeating the step S2, if the detection slopes are positive for 6-8 times continuously, marking the rising as 1, clearing the mark, sequencing the maximum values of the detected wave crests, and outputting the maximum value of the pressing cycle;

s4: s2, if the detection slopes are negative for 6-8 times, marking the rising as 1, adding 1 to the press count to obtain the press frequency, calculating and storing the current pressure value, and clearing the mark;

s5: and storing the total number of the current wave crests within one minute of timing, resetting the pressing counter, displaying the storage of the last one-minute pressing times, namely the pressing frequency, by the timer every one minute, and storing and outputting the recorded pressing frequency, the maximum pressure value, the wave crest value and the wave crest number.

Preferably, the sensors are a pressure sensor and an acceleration sensor, the pressure sensor acquires pressure signals of the pressure head, and the acceleration sensor acquires acceleration signals of the pressure head.

In addition, when the air supply mechanism supplies air, the cam is driven to rotate through the rotation of the servo motor, the cam drives the sliding rod and the piston plate to do reciprocating motion in the inner cavity of the air supply mechanism, when the piston plate moves upwards, the inner sealing door arranged at the air inlet pipe is under the action of negative pressure, the inner sealing door is opened inwards, and at the moment, the main oxygen bottle supplies oxygen to the inner cavity of the air supply mechanism through the air inlet pipe. Meanwhile, the outer sealing door of the gas conveying pipe arranged on the outer side wall of the gas supply mechanism is in a closed state under the action of internal negative pressure, and the gas supply mechanism does not supply oxygen to the first pressurizing mechanism and the second pressurizing mechanism; when the piston plate moves downwards, the inner sealing door is under the action of pressure and is in a closed state, and the air inlet pipe does not supply oxygen to the air supply mechanism; the outer sealing door receives the internal pressure effect simultaneously, is the open mode, and the inside oxygen of air feed mechanism enters into first supercharging mechanism and second supercharging mechanism from the gas-supply pipe. Oxygen enters the first pressurizing mechanism and the second pressurizing mechanism through the pressure of the oxygen supply mechanism, the oxygen is pressurized and enters the first pressurizing chamber of the first pressurizing mechanism and the second pressurizing mechanism along with the gas transmission pipe, the pressurizing nozzle is arranged in the first pressurizing chamber, the pressurizing nozzle reduces the ventilation area, the oxygen is pressurized and enters the gas collection pipe, the pressure of the oxygen is increased, meanwhile, part of the oxygen entering the first pressurizing chamber enters the second pressurizing chamber from the first gas port through the second pressurizing chamber with the trapezoidal section, the speed is not changed, the ventilation area is reduced, the pressure is increased again due to the trapezoidal arrangement of the second pressurizing chamber, the pressure is equivalent to secondary pressurization, the pressurized oxygen is discharged into the gas collection pipe from the second gas port, and the pressure of the oxygen is greatly increased through the arrangement of the first pressurizing mechanism and the second pressurizing mechanism, is helpful for inputting when performing the treatment by pressingThe oxygen in the mouth of the rescuer has certain pressure, so that the oxygen can conveniently enter the lung of the patient, and the rescue effect is improved. When the pressure P of the gas output from the gas collecting pipe is larger, the flow velocity v of the gas is faster, the oxygen entering the mouth of a rescuer can be ensured, meanwhile, v cannot be overlarge, the pressure is prevented from being overlarge, a pressure reducer is arranged on the gas supply pipe to ensure the oxygen supply safety, and in order to further improve the safety rescue effect, the pressure P and the flow velocity v1 of the oxygen meet the requirement of P = lambda- (P1 + P2) v 1/2; in the above formula, P unit is pascal; v1, v2 units, m³Min; lambda is a pressure coefficient, and the value range of lambda is 2.36-15.62; p1 is the pressure of oxygen in the first pressurization mechanism and P2 is the pressure of oxygen in the second pressurization mechanism.

In addition, after oxygen is pressurized by the first pressurizing mechanism and the second pressurizing mechanism, the oxygen enters the gas collecting pipe, a sealed box body is connected to the gas collecting pipe, a gas turbine is arranged in the sealed box body, the pressurized oxygen drives the gas turbine to rotate through the gas turbine, the gas turbine drives the crankshaft to rotate in the rotating process, the crankshaft further drives the connecting rod to do circular motion, the connecting rod does circular motion and simultaneously drives the pressure head to press the chest cavity of a human body, reasonable crankshaft and connecting rod radius are set, and the servo motor drives the frequency of oxygen delivery of the piston plate to the pressurizing mechanisms, the frequency of pressing of the pressure head is controlled, meanwhile, the crankshaft is connected with an auxiliary motor, and the auxiliary motor plays a role in assisting power. The other side of the box body is connected with an air supply pipe, and a pressure reducer is arranged on the air supply pipe to stabilize the pressure in the air supply pipe and prevent unnecessary secondary damage to a patient caused by overlarge pressure; the air tap that sets up on the air supply pipe, the air tap prevents in rescuer's mouth. The action is pressed in the simulation through the turbine drive pressure head that sets up at the discharge, simultaneously, the oxygen suppliment is carried out in the mouth to the rescuer, press down through air supply mechanism single and move the piston plate, for an acting cycle, in this cycle, first booster mechanism and second booster mechanism carry out the pressure boost to oxygen, oxygen drive turbine rotation after the pressure boost, drive the pressure head and press the action in proper order, the oxygen pressure increase in the air feed pipe simultaneously, carry out oxygen supply to the rescuer, adopt above method, carry out a cycle through turbine drive pressure head and press simultaneously reach synchronous oxygen suppliment to the rescuer through air supply pipe and air cock, make the oxygen suppliment press with machinery and reached completely synchronous effect, cardiopulmonary resuscitation's rescue efficiency has been promoted greatly. In order to further ensure the high-efficiency consistency of oxygen supply and pressing, the pressing frequency is ensured to be consistent with the oxygen supply frequency, the diameter d of the air supply pipe, the pressure P of the air collecting pipe, the rotating speed w of the gas turbine and the oxygen supply amount q meet the following formula:

q=φ·πd²（Pw/v）^1/2(ii) a In the above formula, d is mm; w is rad; p is expressed in kPa; v is the oxygen flow rate of the gas supply pipe, and the unit is M/s; pi is the circumference ratio; phi is oxygen supply coefficient and the value range is 2.36-11.35.

In addition, the pressure head pushes down in a period, the connecting rod moves downwards in the pressure head, the connecting rod drives the connecting plate to move downwards, the connecting plate drives the spring to move downwards, and meanwhile, the pressure sensor and the acceleration sensor are arranged to receive pressure and acquire pressure data. The pressing down in-process presses the human body through the silica gel layer that sets up, prevents to cause secondary damage to the rescuer in the pressing down in-process, cushions the pressure through the spring that sets up to form effective protection to being rescued, prevent to press the wound, the spring chooses for use steel spring wire footpath D to be 4.5-8.5mm, length L is 60-150mm, pitch D is 0.56-1.36 mm.

Preferably, in order to make the pressure head play a better buffer role, increase the use safety and prevent the rescuing people from being damaged by overlarge pressure, the wire diameter D, the length L and the screw pitch D of the spring meet the requirement of L = delta (D/D); delta is the length coefficient of the spring, and the value range is 0.47-7.36.

In addition, after the pressure sensor collects pressure data, the pressure sensor preprocesses the sampled pressure data through a data analysis processing module (C8051F 340), the sampled data are stored in an array of n bytes, a new datum obtained each time is stored in the last of the array, meanwhile, the array is sequentially moved forward by one byte, the original first data of the array is cleared, the rest n data are subjected to average operation, a new data result is obtained, noise pollution is eliminated, and the periodic interference is well inhibited. After the pretreatment of the analysis processing module, parameter feature extraction is carried out on the pressure data, the current waveform slope is obtained, and if the slope is positive, 6 times of continuous detection are carried out; if the detection slopes are positive for 6 times continuously, marking the rising as 1, clearing the mark, sorting the maximum values of the detected wave crests, and outputting the maximum value of the pressing cycle; if the detection slopes are negative for 6-8 times continuously, the rising mark is 1, the pressing count is increased by 1 to obtain the pressing frequency, the current pressure value is calculated and stored, and the mark is emptied. And in the timed one-minute time, the total number of the current wave crests is saved, the press counter is reset, and the timer displays the saved number of press times in one minute at each minute, namely the press frequency. By adopting the characteristic parameter extraction to realize the extraction of each parameter, the subsequent signal analysis processing of the pressure value and the frequency is facilitated, the accuracy of the pressing value and the pressing frequency is increased, and the rescue efficiency is improved.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention relates to a rescue device for critical lung diseases, which is provided with an air supply mechanism matched with a first supercharging mechanism and a second supercharging mechanism to supply oxygen intermittently, and simultaneously drives a pressure head to perform intermittent pressing through an arranged gas turbine to perform cardio-pulmonary resuscitation and treatment.

(2) According to the rescue device for the critical lung diseases, the first pressurizing mechanism and the second pressurizing mechanism are arranged, so that the pressure of oxygen is greatly increased, the oxygen input into the mouth of a rescuer has certain pressure when compression rescue is carried out, the oxygen can conveniently enter the lung of the patient, and the rescue effect is improved.

(3) According to the rescue device for the critical lung, the first pressurizing mechanism and the second pressurizing mechanism pressurize oxygen, the pressurized oxygen drives the gas turbine to rotate, the pressure head is driven to perform sequential pressing actions, simultaneously, the oxygen pressure in the gas supply pipe is increased, and oxygen is supplied to a rescuer.

(4) The invention relates to a rescue device for critical lung diseases, which further ensures the high-efficiency consistency of oxygen supply and compression and ensures the compression frequency to be consistent with the same oxygen frequency by limiting the relationship among the diameter of an air supply pipe, the pressure of an air collecting pipe, the rotating speed of a gas turbine and the oxygen supply quantity.

(5) According to the rescue device for the critical lung, the relationship among the wire diameter, the length and the screw pitch of the spring is limited, the silicone layer is arranged to press a human body in the pressing process, so that secondary damage to a rescuer in the pressing process is prevented, the pressure is buffered by the arranged spring, and therefore the rescue device can effectively protect a rescued person and prevent pressure injury.

(6) According to the rescue device for the critical lung, the oxygen supply safety is ensured and the safety rescue effect is further improved by limiting the relation between the pressure in the gas collecting pipe and the flow rate of oxygen.

(7) According to the rescue device for the critical lung, in the data processing process, the analysis processing module extracts each parameter by adopting characteristic parameter extraction, so that the subsequent signal analysis processing of the pressure value and the frequency is facilitated, the accuracy of the pressing value and the pressing frequency is improved, and the rescue efficiency is improved; the noise pollution of the pressure signal is eliminated through the preprocessing of the pressure data, and the accuracy of the pressure signal data is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the pressurization mechanism of the present invention.

Fig. 3 is a schematic view of the slide bar structure of the present invention.

FIG. 4 is a schematic view of a gas turbine engine according to the present invention.

Figure 5 is a schematic view of the ram configuration of the present invention.

Fig. 6 is a schematic view of the gas supply mechanism of the present invention.

FIG. 7 is a schematic view of the air faucet structure of the present invention.

FIG. 8 is a block diagram of a pressure value detection system of the present invention.

Fig. 9 is a flow chart of pressure signal characteristic parameter extraction according to the present invention.

In the figure: 1. a base; 2. a housing; 3. a support bar; 4. an air supply mechanism; 5. a first pressurization mechanism; 6. a second boost mechanism; 7. a main oxygen cylinder; 8. a secondary oxygen cylinder; 9. an air inlet pipe; 10. a gas delivery pipe; 11. a servo motor; 12. a cam; 13. a fixing plate; 14. a chute; 15. a slide bar; 16. a slider; 17. a groove; 18. a gas collecting pipe; 19. a box body; 20. a gas turbine; 21. a crankshaft; 22. a gas supply pipe; 23. a connecting rod; 24. a pressure head; 25. an air tap; 26. a respiratory mask; 41. a piston plate; 42. an outer sealing door; 43. an inner sealing door; 61. A first separator; 62. a second separator; 63. a first plenum; 64. a pressurizing port; 65. a second plenum; 66. a first gas port; 67. a second gas port; 241. a connecting plate; 242. a spring; 243. a sensor; 244. and (5) a silica gel layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-2, a rescue device for critical lung disease comprises a base 1, a shell 2 and a support rod 3; one end of the base 1 is connected with a support rod 3, the other end of the support rod 3 is connected with a shell 2, an air supply mechanism 4 is arranged inside the shell 2, one side of the air supply mechanism 4 is connected with a first supercharging mechanism 5, the other side of the air supply mechanism 4 is connected with a second supercharging mechanism 5, a main oxygen bottle 7 is arranged above the first supercharging mechanism 5, and an auxiliary oxygen bottle 8 is arranged above the second supercharging mechanism 5; the main oxygen cylinder 7 and the auxiliary oxygen cylinder 8 are both communicated with the air supply mechanism 4 through an air inlet pipe 9;

the gas collecting pipe 18 is connected below the first supercharging mechanism 5 and the second supercharging mechanism 5, the other end of the gas collecting pipe 18 is connected with the box body 19, the box body 19 is arranged below the gas supply mechanism 4, the outer side wall of the box body 19 is connected with the shell 2, the box body 19 is of a sealing structure, the gas turbine 20 is arranged inside the box body 19, the gas turbine is rotatably connected with the inner wall of the box body 19 through a bearing, one side of the gas turbine 20 is connected with the crankshaft 21, the crankshaft 21 penetrates through the box body 19 and is connected with the connecting rod 23, the connecting rod 23 penetrates through the shell 2 and is in clearance connection with the shell 2, and the other end of the connecting rod 23 is connected with the pressure head 24; one end of the box body 19, which is far away from the gas collecting pipe 18, is connected with a gas supply pipe 22, and the other end of the gas supply pipe 22 is connected with a gas nozzle 25.

The first supercharging mechanism 5 and the second supercharging mechanism 5 have the same structure and are symmetrically arranged on two sides of the gas supply mechanism 4; first booster mechanism 5 and the inside first baffle 61 that all is provided with of second booster mechanism 5, first baffle 61 forms first plenum chamber 63 with the lateral wall, first plenum chamber 63 one side is connected with the gas-supply pipe 10, communicates with air feed mechanism 4 through the gas-supply pipe 10, be equipped with pressure boost mouth 64 in the first plenum chamber 63, pressure boost mouth 64 opposite side intercommunication discharge 18.

A second partition plate 62 is arranged on the other side of the first partition plate 61, the second partition plate 62 of the first partition plate 61 forms a second plenum chamber 65, and the cross section of the second plenum chamber 65 is in a trapezoidal structure; the first partition plate 61 is provided with a first air port 66, the first air port 66 is an air inlet of the second pressurizing chamber 65, the first partition plate 61 is further provided with a second air port 67, the second air port 67 is an air outlet, and the second air port 67 is close to one side of the air collecting pipe 18 and communicated with the air collecting pipe 18.

Example two:

on the basis of the first embodiment, as shown in fig. 3-4 and 6, the air supply mechanism 4 is a hollow structure inside a rectangular parallelepiped, a piston plate 41 is arranged inside the air supply mechanism 4, the piston plate 41 is hermetically and slidably connected with the inner wall of the air supply mechanism 4, one side of the piston plate 41 is connected with a sliding rod 15, and the other end of the sliding rod 15 penetrates through the outer wall of the air supply mechanism 4 and forms a gap sliding connection; the other end of the sliding rod 15 is provided with a sliding chute 14 in a matching way, and the sliding rod 15 and the sliding chute 14 form sliding connection.

A fixed plate 13 is arranged at the bottom of the sliding chute 14, the fixed plate 13 is connected with the inner wall of the shell 2, and a sliding block 16 is connected to the upper side of the sliding rod 15; the sliding block 16 is connected with the groove 17 in the cam 12 in a sliding mode in a matching mode, the cam 12 is connected with a private servo motor and driven by a servo motor 11, and the servo motor 11 is connected with the shell 2.

The two sides below the gas supply mechanism 4 are both connected with gas pipes 10 which are communicated with the first supercharging mechanism 5 and the second supercharging mechanism 5 through the gas pipes 10, the outer side wall of the joint of the gas pipes 10 and the gas supply mechanism 4 is provided with an outer sealing door 42, and the outer sealing door 42 is rotatably connected with the outer side wall of the gas supply mechanism 4 through hinges; one end of the air supply mechanism 4 far away from the servo motor 11 is connected with an air inlet pipe 9, and is communicated with the main oxygen cylinder 7 and the auxiliary oxygen cylinder 8 through the air inlet pipe 9, an inner sealing door 43 is arranged on the inner side wall of the joint of the air supply pipe 22 and the air supply mechanism 4, and the inner sealing door 43 is rotatably connected with the inner side wall of the air supply mechanism 4 through a hinge.

Air feed mechanism 4 rotates through servo motor 11 and drives cam 12 and rotate when carrying out the air feed, and cam 12 drives slide bar 15 and piston plate 41 and is reciprocating motion in air feed mechanism 4's inner chamber, and when piston plate 41 rebound, the setting receives the negative pressure effect at the interior sealing door 43 of intake pipe 9 department, and interior sealing door 43 is inwards opened, and main oxygen bottle 7 supplies with oxygen to air feed mechanism 4's inner chamber through intake pipe 9 this moment. Meanwhile, the gas pipe 10 outer sealing door 42 arranged on the outer side wall of the gas supply mechanism 4 is in a closed state due to the action of internal negative pressure, and the gas supply mechanism 4 does not supply oxygen to the first pressurizing mechanism 5 and the second pressurizing mechanism 5; when the piston plate 41 moves downwards, the inner sealing door 43 is under the action of pressure and is in a closed state, and the air inlet pipe 9 does not supply oxygen to the air supply mechanism 4; meanwhile, the outer seal door 42 is opened under the action of internal pressure, and oxygen in the air supply mechanism 4 enters the first pressurization mechanism 5 and the second pressurization mechanism 5 from the air delivery pipe 10. The oxygen enters the first pressurizing mechanism 5 and the second pressurizing mechanism through the pressure supply mechanism for pressurizing again, in the process of pressurizing again, the oxygen enters the first pressurizing chamber 63 of the first pressurizing mechanism 5 and the second pressurizing mechanism along with the gas transmission pipe 10, the pressurizing nozzle is arranged in the first pressurizing chamber 63, the ventilating area of the pressurizing nozzle is reduced, the oxygen enters the gas collecting pipe 18 through pressurizing, the pressure of the oxygen is increased, meanwhile, part of the oxygen entering the first pressurizing chamber 63 enters the second pressurizing chamber 65 from the first gas port 66 through the second pressurizing chamber 65 with a trapezoidal section, as the second pressurizing chamber 65 is arranged in a trapezoidal shape, the speed is not changed, the ventilating area is reduced, the pressure is increased again, which is equivalent to secondary pressurizing, the pressurized oxygen is discharged into the gas collecting pipe 18 from the second gas port 67 and passes through the first pressurizing mechanism 5 and the second pressurizing mechanism 5, the pressure of oxygen is promoted greatly, help when pressing the treatment, have certain pressure to the oxygen of inputing in the rescuer mouth, be convenient for enter into patient lung, promote the rescue effect. When the pressure P of gas output from the gas collecting pipe 18 is larger, the flow velocity v of the gas is faster, oxygen entering the mouth of a rescuer can be ensured, and meanwhile v cannot be too large, so that the pressure is prevented from being too large, a pressure reducer is arranged on the gas supply pipe 22 to ensure oxygen supply safety, and the safety rescue effect is further improvedThe pressure P and the flow rate v1 of oxygen satisfy P = λ · P1+ P2v 1/2; in the above formula, P unit is pascal; v1, v2 units, m³Min; lambda is a pressure coefficient, and the value range of lambda is 2.36-15.62; p1 is the pressure of oxygen in the first pressurization mechanism 5, and P2 is the pressure of oxygen in the second pressurization mechanism 5.

Example three:

as shown in fig. 5 and 7, based on the first embodiment, the interior of the ram 24 is a hollow structure, the connecting rod 23 penetrates through the wall of the ram 24 and is slidably connected with the wall of the ram 24 at a gap, a connecting plate 241 is connected after the connecting rod 23 penetrates through the connecting rod, the connecting plate 241 is arranged inside the ram 24, a spring 242 is connected to the other side of the connecting plate 241, the other end of the spring 242 is connected to the inner side wall of the ram 24, sensors 243 are arranged on two sides of the spring 242, and the sensors 243 are connected to the connecting plate 241; the indenter 24 is provided with a silicone layer 244. The free end of the air supply pipe 22 is connected with an air tap 25, the air tap 25 is provided with a respiratory mask 26, and the air tap 25 is arranged on the concave side of the respiratory mask 26.

In the process that the pressure head 24 is pressed down in one period, the connecting rod 23 moves downwards in the pressure head 24, the connecting rod 23 drives the connecting plate 241 to move downwards, the connecting plate 241 drives the spring 242 to move downwards, and meanwhile, the pressure sensor 243 and the acceleration sensor 243 are under pressure to acquire pressure data. The body is pressed through the silica gel layer 244 that sets up in the in-process of pushing down, prevents to press the in-process and cause secondary damage to the rescuer, cushions the pressure through the spring 242 that sets up to form effective protection to being rescued, prevent the crushing, the spring 242 chooses for use steel spring 242 line footpath D to be 4.5-8.5mm, length L is 60-150mm, pitch D is 0.56-1.36 mm.

In order to make the pressure head 24 play a better buffer role, increase the use safety and prevent the rescuing people from being damaged by overlarge pressure, the line diameter D, the length L and the screw pitch D of the spring 242 meet the condition that L = delta D/D; delta is the length coefficient of the spring 242 and ranges from 0.47 to 7.36.

Example four

As shown in fig. 8-9, on the basis of the first embodiment, the rescue apparatus further includes an MCU, a signal detection module, an analysis processing module, a wireless communication module, an alarm module, and a power module; the signal detection module receives the signal from the sensor 243 converted by the A/D conversion module, monitors the degree of pressing by the MCU, and extracts the characteristic parameters of the pressure signal set by the analysis processing module.

The method for extracting the characteristic parameters of the pressure signals comprises the following steps: s1: the analysis processing module receives the pressing oscillogram after the pressure information is subjected to A/D conversion; s2: obtaining the current waveform slope, and if the slope is positive, carrying out 6-8 times of continuous detection; s3: repeating the step S2, if the detection slopes are positive for 6-8 times continuously, marking the rising as 1, clearing the mark, sequencing the maximum values of the detected wave crests, and outputting the maximum value of the pressing cycle; s4: s2, if the detection slopes are negative for 6-8 times, marking the rising as 1, adding 1 to the press count to obtain the press frequency, calculating and storing the current pressure value, and clearing the mark; s5: and storing the total number of the current wave crests within one minute of timing, resetting the pressing counter, displaying the storage of the last one-minute pressing times, namely the pressing frequency, by the timer every one minute, and storing and outputting the recorded pressing frequency, the maximum pressure value, the wave crest value and the wave crest number.

The sensors 243 are a pressure sensor 243 and an acceleration sensor 243, the pressure sensor 243 collects pressure signals of the pressure head 24, and the acceleration sensor 243 collects acceleration signals of the pressure head 24.

After the pressure sensor 243 collects pressure data, the pressure data is preprocessed through the data analysis processing module C8051F340, the sampled data is stored in an array of n bytes, a new data obtained each time is stored in the end of the array, meanwhile, the array is moved forward one byte in sequence, the original first data of the array is cleared, the rest n data are subjected to average operation, a new data result is obtained, noise pollution is eliminated, and the periodic interference is well inhibited. After the pretreatment of the analysis processing module, parameter feature extraction is carried out on the pressure data, the current waveform slope is obtained, and if the slope is positive, 6 times of continuous detection are carried out; if the detection slopes are positive for 6 times continuously, marking the rising as 1, clearing the mark, sorting the maximum values of the detected wave crests, and outputting the maximum value of the pressing cycle; if the detection slopes are negative for 6-8 times continuously, the rising mark is 1, the pressing count is increased by 1 to obtain the pressing frequency, the current pressure value is calculated and stored, and the mark is emptied. And in the timed one-minute time, the total number of the current wave crests is saved, the press counter is reset, and the timer displays the saved number of press times in one minute at each minute, namely the press frequency. By adopting the characteristic parameter extraction to realize the extraction of each parameter, the subsequent signal analysis processing of the pressure value and the frequency is facilitated, the accuracy of the pressing value and the pressing frequency is increased, and the rescue efficiency is improved.

EXAMPLE five

On the basis of the first embodiment, after being pressurized by the first pressurizing mechanism 5 and the second pressurizing mechanism 5, oxygen enters the gas collecting pipe 18, the gas collecting pipe 18 is connected with the sealed box body 19, the gas turbine 20 is arranged in the sealed box body 19, the pressurized oxygen drives the gas turbine 20 to rotate through the gas turbine 20, the gas turbine 20 drives the crankshaft 21 to rotate in the rotating process, the crankshaft 21 further drives the connecting rod 23 to do circulating motion, the connecting rod 23 drives the pressure head 24 to press the thoracic cavity of a human body while doing circulating motion, the frequency of the pressure head 24 to press is controlled by setting the reasonable radius of the crankshaft 21 and the radius of the connecting rod 23 and the frequency of the servo motor 11 driving the piston plate 41 to convey oxygen through the pressurizing mechanisms, and meanwhile, the crankshaft 21 is connected with the auxiliary motor which plays a role of assisting power. The other side of the box body 19 is connected with an air supply pipe 22, and a pressure reducer is arranged on the air supply pipe 22 to stabilize the pressure in the air supply pipe 22 and prevent unnecessary secondary damage to a patient due to overlarge pressure; an air tap 25 is provided on the air supply tube 22, the air tap 25 being prevented from being in the mouth of the rescuer. The gas turbine 20 that sets up through at the discharge 18 drives pressure head 24 and simulates the action of pressing, simultaneously to carrying out the oxygen suppliment in rescuer's the mouth, 4 single pushes down piston plate 41 through the air feed mechanism, for an acting cycle, in this cycle, first supercharging mechanism 5 and second supercharging mechanism 5 carry out the pressure boost to oxygen, oxygen after the pressure boost drives gas turbine 20 and rotates, drive pressure head 24 and press the action in proper order, simultaneously the oxygen pressure increase in the air supply pipe 22, carry out the oxygen supply to the rescuer, adopt above method, reach synchronous oxygen suppliment through air supply pipe 22 and air cock 25 to the rescuer when carrying out the pressure of a cycle through gas turbine 20 drive pressure head 24, make the oxygen suppliment reach the effect of complete synchronization with mechanical pressing, cardiopulmonary resuscitation's rescue efficiency has been promoted greatly. In order to further ensure the high-efficiency consistency of oxygen supply and compression, the compression frequency is consistent with the oxygen frequency, the diameter d of the air supply pipe 22, the pressure P of the air collecting pipe 18, the rotating speed w of the gas turbine 20 and the oxygen supply amount q satisfy the following formula:

q=φ·πd²Pw/v^1/2(ii) a In the above formula, d is mm; w is rad; p is expressed in kPa; v is the oxygen flow rate in M/s through the gas supply tube 22; pi is the circumference ratio; phi is oxygen supply coefficient and the value range is 2.36-11.35.

The device that obtains through above-mentioned technical scheme is a rescue device that is used for lung critically ill, carry out the intermittent type oxygen suppliment through setting up first booster mechanism of air feed mechanism cooperation and second booster mechanism, simultaneously drive the pressure head through the gas turbine that sets up and carry out intermittent type and press and carry out cardiopulmonary resuscitation treatment, drive the pressure head through pneumatic mode and can guarantee to the rescuer when leading to oxygen, press and lead to oxygen and keep the uniformity of height, ensure that the thorax when recovering, there is enough oxygen to supply with and apply certain gas pressure, help getting into rescuer lung, oxygen saving oxygen when not pressing simultaneously again. Through the setting of first booster mechanism and second booster mechanism, promote the pressure of oxygen greatly, help when pressing the treatment, have certain pressure to the oxygen of inputing in the rescuer mouth, be convenient for enter into patient's lung, promote the succour effect. First booster mechanism and second booster mechanism carry out the pressure boost to oxygen, oxygen drive gas turbine rotation after the pressure boost, drive the pressure head and press the action in proper order, the oxygen pressure increase in the air feed pipe simultaneously, carry out the oxygen supply to the rescuer, the method more than adopting, carry out a periodic through gas turbine drive pressure head and reach synchronous oxygen suppliment to the rescuer through air supply pipe and air cock when pressing, make the oxygen suppliment press with machinery and reached completely synchronous effect, cardiopulmonary resuscitation's rescue efficiency has been promoted greatly. The high-efficiency consistency of oxygen supply and pressing is further ensured by limiting the diameter of the gas supply pipe, the pressure of the gas collecting pipe and the relation between the rotating speed of the gas turbine and the oxygen supply amount, and the pressing frequency is ensured to be consistent with the oxygen sharing frequency. Through injecing spring line footpath, length, the relation between the pitch presses the human body through the silica gel layer that sets up in the in-process that pushes down, prevents to cause secondary damage to the rescuer in pressing the in-process, cushions pressure through the spring that sets up to form effective protection to being rescued, prevent to press the wound. By limiting the relation between the pressure in the gas collecting pipe and the flow rate of oxygen, the oxygen supply safety is ensured, and the safety rescue effect is further improved. In the process of processing the data by the analysis processing module, extraction of each parameter is realized by adopting characteristic parameter extraction, so that the analysis processing of signals of subsequent pressure values and frequencies is facilitated, the accuracy of the pressing values and the pressing frequencies is improved, and the rescue efficiency is improved; the noise pollution of the pressure signal is eliminated through the preprocessing of the pressure data, and the accuracy of the pressure signal data is improved.

Other technical solutions not described in detail in the present invention are prior art in the field, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A rescue device for critical lung diseases, which comprises a base (1), a shell (2) and a support rod (3); the oxygen supply device is characterized in that one end of the base (1) is connected with a support rod (3), the other end of the support rod (3) is connected with a shell (2), an air supply mechanism (4) is arranged inside the shell (2), one side of the air supply mechanism (4) is connected with a first supercharging mechanism (5), the other side of the air supply mechanism (4) is connected with a second supercharging mechanism (5), a main oxygen bottle (7) is arranged above the first supercharging mechanism (5), and an auxiliary oxygen bottle (8) is arranged above the second supercharging mechanism (5); the main oxygen cylinder (7) and the auxiliary oxygen cylinder (8) are communicated with the air supply mechanism (4) through an air inlet pipe (9);

the gas collecting pipe (18) is connected to the lower portions of the first supercharging mechanism (5) and the second supercharging mechanism (5), the other end of the gas collecting pipe (18) is connected with a box body (19), the box body (19) is arranged below the gas supply mechanism (4), the outer side wall of the box body (19) is connected with the shell (2), the box body (19) is of a sealing structure, a gas turbine (20) is arranged inside the box body (19), the gas turbine is rotatably connected with the inner wall of the box body (19) through a bearing, a crankshaft (21) is connected to one side of the gas turbine (20), the crankshaft (21) penetrates through the box body (19) and is connected with a connecting rod (23), the connecting rod (23) penetrates through the shell (2) and is in clearance connection with the shell (2), and a pressure head (24) is connected to the other end of the connecting rod (23); one end of the box body (19) far away from the gas collecting pipe (18) is connected with a gas supply pipe (22), and the other end of the gas supply pipe (22) is connected with a gas nozzle (25).

2. The rescue device for the critical pulmonary disease according to claim 1, wherein the air supply mechanism (4) is a cuboid hollow structure, a piston plate (41) is arranged inside the air supply mechanism (4), the piston plate (41) is hermetically and slidably connected with the inner wall of the air supply mechanism (4), one side of the piston plate (41) is connected with a sliding rod (15), and the other end of the sliding rod (15) penetrates through the outer wall of the air supply mechanism (4) and forms a gap sliding connection; the other end of the sliding rod (15) is provided with a sliding groove (14) in a matching manner, and the sliding rod (15) and the sliding groove (14) form sliding connection.

3. The rescue apparatus for critical pulmonary disease according to claim 2, characterized in that the bottom of the sliding chute (14) is provided with a fixed plate (13), the fixed plate (13) is connected with the inner wall of the housing (2), and the upper side of the sliding rod (15) is connected with a slide block (16); the sliding block (16) is connected with a groove (17) in the cam (12) in a sliding mode in a matching mode, the cam (12) is connected with a private server motor and driven by a servo motor (11), and the servo motor (11) is connected with the shell (2).

4. The rescue device for the critical lung diseases according to claim 2, characterized in that air delivery pipes (10) are connected to both sides of the lower part of the air supply mechanism (4) and are communicated with a first pressurization mechanism (5) and a second pressurization mechanism (5) through the air delivery pipes (10), an outer sealing door (42) is arranged on the outer side wall of the joint of the air delivery pipes (10) and the air supply mechanism (4), and the outer sealing door (42) is rotatably connected with the outer side wall of the air supply mechanism (4) through a hinge; one end of the air supply mechanism (4) far away from the servo motor (11) is connected with an air inlet pipe (9), and is communicated with the main oxygen cylinder (7) and the auxiliary oxygen cylinder (8) through the air inlet pipe (9), an inner sealing door (43) is arranged on the inner side wall of the joint of the air supply pipe (22) and the air supply mechanism (4), and the inner sealing door (43) is rotatably connected with the inner side wall of the air supply mechanism (4) through a hinge.

5. The rescue apparatus for pulmonary critically ill according to claim 1, wherein the first pressurizing mechanism (5) and the second pressurizing mechanism (5) are identical in structure and symmetrically arranged on both sides of the gas supply mechanism (4); first booster mechanism (5) and second booster mechanism (5) are inside all to be provided with first baffle (61), first baffle (61) and lateral wall form first plenum chamber (63), first plenum chamber (63) one side is connected with gas-supply pipe (10), communicates with air feed mechanism (4) through gas-supply pipe (10), be equipped with pressure boost mouth (64) in first plenum chamber (63), pressure boost mouth (64) opposite side intercommunication discharge (18).

6. The rescue apparatus for pulmonary critically ill according to claim 5, wherein a second partition (62) is provided on the other side of the first partition (61), the second partition (62) of the first partition (61) forms a second plenum (65), and the second plenum (65) has a trapezoidal cross section; the gas collecting device is characterized in that a first gas port (66) is formed in the first partition plate (61), the first gas port (66) is a gas inlet of the second pressurizing chamber (65), a second gas port (67) is further formed in the first partition plate (61), the second gas port (67) is a gas outlet, and the second gas port (67) is close to one side of the gas collecting pipe (18) and communicated with the gas collecting pipe (18).

7. The rescue apparatus for pulmonary critical illness according to claim 1, characterized in that the interior of the pressure head (24) is hollow, the connecting rod (23) penetrates through the wall of the pressure head (24) and is in sliding connection with the wall of the pressure head (24) in a clearance manner, a connecting plate (241) is connected after the connecting rod (23) penetrates through, the connecting plate (241) is arranged inside the pressure head (24), the other side of the connecting plate (241) is connected with a spring (242), the other end of the spring (242) is connected with the inner side wall of the pressure head (24), sensors (243) are arranged on two sides of the spring (242), and the sensors (243) are connected with the connecting plate (241); and a silica gel layer (244) is arranged on the pressure head (24).

8. A rescue apparatus for pulmonary critically ill according to claim 1, wherein an air tap (25) is connected to the free end of the gas supply tube (22), the air tap (25) being provided with a breathing mask (26), the air tap (25) being arranged on the concave side of the breathing mask (26).

9. The rescue device for pulmonary critical illness according to claim 1, further comprising an MCU, a signal detection module, an analysis processing module, a wireless communication module, an alarm module, and a power module; the signal detection module receives the signals from the sensor (243) converted by the A/D conversion module, monitors the degree of pressing by the MCU, and extracts the characteristic parameters of the pressure signals through the analysis and processing module.

10. The rescue apparatus for pulmonary critically ill patients according to claim 9, wherein the characteristic parameter extraction method of the pressure signal comprises:

s1: the analysis processing module receives the pressing oscillogram after the pressure information is subjected to A/D conversion;

s2: obtaining the current waveform slope, and if the slope is positive, carrying out 6-8 times of continuous detection;

s3: repeating the step S2, if the detection slopes are positive for 6-8 times continuously, marking the rising as 1, clearing the mark, sequencing the maximum values of the detected wave crests, and outputting the maximum value of the pressing cycle;

s4: s2, if the detection slopes are negative for 6-8 times, marking the rising as 1, adding 1 to the press count, accumulating as the press frequency, calculating and storing the current pressure value, and clearing the mark;

s5: and storing the total number of the current wave crests within one minute of timing, resetting the pressing counter, displaying the storage of the last one-minute pressing times, namely the pressing frequency, by the timer every one minute, and storing and outputting the recorded pressing frequency, the maximum pressure value, the wave crest value and the wave crest number.

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