Emergency first-aid breathing device and medical bed

Abstract

The invention provides an emergency first-aid breathing device and a medical bed, and relates to the technical field of artificial respiration, the emergency first-aid breathing device comprises a telescopic cylinder type air bag, one end of the telescopic cylinder type air bag is connected with a driving mechanism, and the other end of the telescopic cylinder type air bag is communicated with a rigid air outlet cylinder; the mask assembly is provided with a mask and an air valve assembly communicated with the mask, and the air valve assembly is communicated with the rigid air outlet cylinder; the mounting plate is connected to a frame and / or a bed head of the medical bed, and the driving mechanism and the rigid air outlet cylinder are connected with the lower surface of the mounting plate. Air is supplied to the mask in the mode that the driving mechanism compresses the telescopic cylinder type air bag, and positive-pressure air suction operation is achieved. Compared with a traditional spherical air bag, on one hand, operation can be completed through a mechanical structure, and manual operation is not needed; on the other hand, the air supply amount can be accurately controlled by controlling the distance of the driving mechanism for compressing the telescopic cylinder type air bag, the air supply frequency can also be accurately controlled by the telescopic frequency of the driving mechanism, and the breathing uniformity of the patient can be stably maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial respiration, in particular to an emergency first aid respiration device and a medical bed. Background Art

[0002] Bag respirator is a commonly used artificial respiration device for emergency first aid. Its main components include air bag, mask, air bag inlet valve, positive pressure inhalation valve and reverse pressure exhalation valve. EC method is the standard use of bag respirator. The thumb and index finger of one hand of medical staff are fully opened in a C shape to ensure that the mask fits tightly against the patient's face. The other three fingers lift the patient's lower jaw and tilt the patient's head back to ensure smooth ventilation. The other hand evenly and regularly squeezes the middle of the bag to provide positive pressure inhalation for the patient. Existing bag respirators have the following defects: 1. The commonly used air bag structure of bag respirators is a spherical air bag. The patient's inhalation volume is affected by subjective factors, which requires certain operating experience of medical staff and cannot guarantee the uniformity of the patient's breathing.

[0003] 2. The use of bag respirators based on the EC method requires medical staff to use both hands at the same time. When the bag needs to be connected to an external oxygen supply device, a second person is usually required to assist in the operation. In addition, the work intensity of continuously pressing the mask, lifting the patient's lower jaw and squeezing the bag is relatively high.

[0004] In view of this, how to provide an emergency first aid breathing device with an automatic compression air bag and a mask that fits closely to the patient's face, freeing the hands of medical staff, is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide an emergency first aid breathing device and a medical bed to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides an emergency first aid breathing device, comprising: A telescopic cylinder-type airbag, one end of which is connected to a driving mechanism and the other end of which is connected to a rigid air outlet, wherein the driving mechanism is used to compress or extend the telescopic cylinder-type airbag; A mask assembly, comprising a mask and an air valve assembly in communication with the mask, wherein the air valve assembly is in communication with the rigid air outlet; The mounting plate is connected to the frame and / or the head of the medical bed, and the driving mechanism and the rigid air outlet are both connected to the lower surface of the mounting plate.

[0007] The present invention discloses the following technical effects: The positive pressure inhalation operation is achieved by using a drive mechanism to compress the telescopic cylinder airbag to supply air to the mask. Compared with the traditional spherical airbag, on the one hand, the operation can be completed by a mechanical structure without manual operation; on the other hand, the air supply volume can be precisely controlled by controlling the distance that the drive mechanism compresses the telescopic cylinder airbag, and the air supply frequency can also be precisely controlled by the expansion and contraction frequency of the drive mechanism, which can stably maintain the patient's breathing uniformity.

[0008] Furthermore, it also includes: A rigid air inlet cylinder having an upper opening and a bottom surface, wherein the upper opening is communicated with one end of the telescopic cylinder-type airbag, and the bottom surface is connected with the driving mechanism; The air bag air inlet valve is arranged on the side of the rigid air inlet cylinder and is communicated with the rigid air inlet cylinder.

[0009] Furthermore, it also includes: A flexible connecting pipe, one end of which is connected to the air valve assembly, and the other end of which is connected to the rigid air outlet tube.

[0010] The technical effect of adopting the above scheme is that the existing artificial respirators all use a rigid connecting tube to connect the mask and the airbag, the purpose of which is to maintain a fixed distance between the mask and the airbag, so that the operator's left and right hands are at a suitable distance, improving the comfort of operation. The present invention compresses the telescopic cylinder airbag through a driving mechanism to achieve positive pressure inhalation operation without manual operation. Therefore, the present invention sets the connecting tube as a flexible connecting tube, which can more flexibly adjust the upper and lower positions of the mask.

[0011] Furthermore, it also includes: A rope, connected to the mask, for binding the mask to the patient's face; An elastic connecting member, arranged between the air valve assembly and the pressure plate; An adjusting screw has one end connected to the pressing plate, and the other end passes through the mounting plate and is threadedly connected to an adjusting nut, wherein the adjusting nut is used to adjust the distance between the pressing plate and the air valve assembly.

[0012] The technical effects of adopting the above scheme are: The mask is positioned on the patient's face by means of a rope to prevent the mask from changing position during artificial respiration. The distance between the pressure plate and the air valve assembly can be changed by adjusting the nut and the screw, thereby adjusting the elastic force of the elastic connector. The elastic force of the elastic connector can provide downward pressure (reaction force) to the air valve assembly, thereby pressing the mask down and tightly against the patient's face. Compared with the prior art, it can ensure that the mask fits tightly against the face and no longer requires manual operation.

[0013] Furthermore, it also includes: A pull rope, wherein the bottom of the mask extends downward to form a lower support piece adapted to the shape of the patient's lower jaw, and when the mask is closely attached to the patient's face, the lower support piece is connected to the patient's lower jaw, and one end of the pull rope is connected to the lower support piece; A fixing assembly is arranged on the upper surface of the mounting plate and close to one end of the mounting plate away from the mask. The mounting plate is provided with through grooves running through the upper and lower surfaces. The other end of the pull rope passes through the through groove and is connected to the fixing assembly. The pull rope is used to pull the lower support toward the fixing assembly and lift the patient's lower jaw.

[0014] The technical effects of adopting the above scheme are: A lower support is integrally provided at the bottom of the mask. When the mask is tightly attached to the patient's face, the lower support is connected to the patient's lower jaw. At this time, the lower support can be pulled diagonally upward by pulling the rope to simulate the action of the medical staff supporting the lower jaw, so as to achieve the effect of lifting the patient's lower jaw and tilting the patient's head back to ensure smooth ventilation. Compared with the existing technology, there is no need for manual operation to fix the mask or to manually support the patient's lower jaw, which completely frees the hands of the medical staff, and a single person can complete the connection between the airbag and the external oxygen supply equipment.

[0015] Furthermore, the fixing assembly includes: A positioning column, vertically arranged on the upper surface of the mounting plate; An adjusting cylinder, the inner cavity of which is adapted to the shape of the positioning column and can be sleeved on the outer side of the positioning column; A plurality of snap rings are arranged on the outer surface of the adjusting cylinder in a vertical direction, and a snap hook is provided at the other end of the pull rope, and the snap hook can be hooked on the snap ring; The bottom outer edge of the adjusting cylinder is provided with a plurality of identical clips along the circumferential direction, and the upper surface of the mounting plate is provided with a plurality of first slots corresponding to the plurality of clips; when the hook is hooked with the snap ring, the adjusting cylinder is moved upward and rotated until the pull rope is in a taut state, and the adjusting cylinder is moved downward and the clips are engaged in the first slots.

[0016] The technical effects of adopting the above scheme are: The drawstring and the adjusting cylinder are fixed by a clamp ring and a clamp hook, and the drawstring part is wound around the adjusting cylinder by rotational winding, so that the drawstring is tightened and generates tension on the lower supporting member.

[0017] The bottom of the adjustment cylinder is provided with a plurality of clips similar to "external teeth of a gear", and a first slot is correspondingly provided on the mounting plate. Since the clips match the shape of the first slot, the clips can be moved down to be placed in the first slot, so as to fix the adjustment cylinder. The clips can be taken out from the first slot by moving the clips up. After the clamp ring and the hook are fixed, the pull rope can be wound around the adjustment cylinder by rotating the adjustment cylinder. When the pull rope reaches an ideal state, the adjustment cylinder can be moved down to clamp the clips into the first slot again. At this time, the pull rope is fixed, and the pulling force of the pull rope on the lower support is also fixed. After the adjustment cylinder rotates, the same clip is not clamped into the first slot at the beginning but into another first slot. The present invention is provided with a plurality of identical clips and first slots, so no matter how the adjustment cylinder rotates, the function of the adjustment cylinder moving down to clamp into the first slot can be realized, and then the pulling force of the pull rope on the lower support can be flexibly adjusted, and the patient's mandible can be maintained under the support, while avoiding excessive pulling force causing discomfort to the patient.

[0018] Furthermore, a second slot is provided on the upper surface of the mounting plate corresponding to the adjusting cylinder and the positioning column, the second slot is connected to the first slot and the bottom surfaces of the first slot and the second slot are flush.

[0019] The technical effects of adopting the above scheme are: The adjusting cylinder, the positioning column and the clamping piece can be clamped into the mounting plate together. The adjusting cylinder is fixed from the inside by the positioning column on the one hand, and fixed from the outside by the first clamping groove and the second clamping groove on the other hand, and has strong structural stability.

[0020] The present invention also provides a medical bed, comprising the emergency first aid breathing device, and further comprising: A support column is connected to the frame and / or the head of the medical bed, and the mounting plate is hinged to the support column in a horizontal direction.

[0021] The present invention discloses the following technical effects: Under normal circumstances, the emergency first aid breathing device can be rotated to the edge of the medical bed frame or bedside, which does not affect the normal use of the medical bed. When the patient is in an emergency, the emergency first aid breathing device can be quickly obtained to improve the speed of first aid and increase the chance of successful rescue of the patient. The frame or bedside of the medical bed can also provide stable support for the mounting plate, thereby ensuring the connection stability of the drive mechanism and the telescopic cylinder airbag.

[0022] Furthermore, it also includes: A prefilled oxygen cylinder is arranged in the frame and / or the head of the medical bed and is used to supply oxygen to the telescopic cylinder-type airbag.

[0023] The technical effects of adopting the above scheme are: When an emergency occurs to a patient and the patient needs to be transferred, the oxygen bags commonly used in the prior art cannot meet the oxygen supply demand. The present invention sets a pre-filled oxygen cylinder in the medical bed and directly supplies air to the telescopic cylinder airbag, so that the patient has sufficient oxygen during the transfer process, further improving the success rate of rescue.

[0024] Furthermore, the frame and / or the head of the medical bed are provided with a slide rail, and the slide rail is arranged along the length direction of the medical bed. The bottom of the support column is slidably connected to the slide rail and is driven by an adjusting motor to slide along the slide rail.

[0025] The technical effects of adopting the above scheme are: The patient's head is generally located near the head of the medical bed, but the positions of the mouth and nose of different people are different. In order to improve the application range of the equipment, the present invention arranges a slide rail along the length direction of the medical bed, and the support column and the emergency first aid breathing device can be adjusted along the length direction of the medical bed by adjusting the motor drive to ensure that the position of the mask is directly opposite to the position of the patient's mouth and nose. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the structure of the telescopic cylinder type airbag in the extended state; Figure 3 It is a schematic diagram of the structure of the telescopic cylinder type airbag in a compressed state; Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 6 It is the top view of the mounting plate; Figure 7 is a schematic diagram of a first card slot and a second card slot; Figure 8 It is a schematic diagram of the fixed component structure; Fig. 9 This is the matching diagram of the hook and the snap ring; Fig.10 This is a schematic diagram of the structure of Embodiment 4 of the present invention; Among them, 1. telescopic cylinder type airbag; 2. driving mechanism; 3. rigid air outlet cylinder; 4. air valve assembly; 401. exhalation valve; 402. inhalation valve; 5. mask; 501. lower support; 6. mounting plate; 601. through slot; 602. first slot; 603. second slot; 7. medical bed; 701. head of bed; 8. rigid air inlet cylinder; 9. air bag air inlet valve; 10. flexible connecting pipe; 11. rope; 12. elastic connecting part; 13. adjusting screw; 14. adjusting nut; 15. pressure plate; 16. pull rope; 1601. hook; 17. fixing assembly; 1701. positioning column; 1702. adjusting cylinder; 1703. snap ring; 1704. snap connector; 18. support column; 19. slide rail; 20. connecting rod. DETAILED DESCRIPTION

[0028] The following is an overview of the existing artificial respiration devices in the field Based on the problem that the airbag structure commonly used in existing airbag respirators is a spherical airbag and the patient's inhalation volume is affected by human subjective factors, patent CN117224794B discloses an artificial respirator for respiratory medicine. Its technical solution is as follows: Double-sided pressing design: The respirator includes an airbag and a pressing assembly, which is composed of a mounting frame, a positioning structure and a pressing structure. The positioning structure has a built-in airbag, and the pressing structure includes a first and a second rotation pair, which are respectively connected to the upper rocker arm and the lower rocker arm. An upper arc-shaped pressing block is provided at the end of the upper rocker arm, and a lower arc-shaped pressing block is provided at the end of the lower rocker arm, which are respectively located directly above and directly below the center of the airbag to achieve double-sided pressing.

[0029] Traction rope balancing system: an upper traction shaft is provided in the middle of the upper rocker arm, and a lower traction shaft is provided in the middle of the lower rocker arm. A circular traction rope is connected to the two shafts and is tensioned on the two shafts. This design allows the upper rocker arm and the lower rocker arm to balance each other during the pressing process, ensuring uniform pressing of the airbag and avoiding distortion of the airbag.

[0030] Quick reset mechanism: The middle section of the upper rocker arm and the lower rocker arm is provided with a rotating rod structure, and the front end is provided with a winding head, and the circular traction rope passes through the winding head. After the pressing is completed, the winding head is quickly reset by the elastic force of the circular traction rope, driving the upper rocker arm and the lower rocker arm to quickly reset, realizing stable and rapid exhalation guidance.

[0031] Operational flexibility: The rotating rod structure can be started manually and electrically, providing operational flexibility. The control module is connected to the rotating rod structure to achieve automatic control, and a manual joystick is fixed at the head end to facilitate quick operation in special circumstances.

[0032] Structural optimization: The upper rocker arm and the lower rocker arm are symmetrically arranged and are composed of multiple layers of rocker arm sheets. The number of rocker arm sheets can be adjusted as needed, thereby adjusting the size of the rocker arm and the area of ​​contact with the airbag to improve the pressing stability.

[0033] Additional elastic part: an upper hook is provided in the center of the top wall of the upper rocker arm, and a lower hook is provided in the center of the bottom wall of the lower rocker arm, which are respectively used to connect the elastic parts pulled upward and downward, so as to further improve the reset speed.

[0034] Limiting design: Limiting heads are fixed at the ends of the upper traction shaft and the lower traction shaft to prevent the annular traction rope from detaching.

[0035] It has the following advantages: Pressing stability: Through the double-sided pressing and traction rope balancing system, the airbag is pressed evenly, avoiding the twisting and shaking of the airbag.

[0036] Rapid reset: The quick reset mechanism makes the exhalation guidance more stable and rapid, in line with the patient's exhalation rhythm.

[0037] Flexible operation: Manual and electric start modes provide operational flexibility to meet different clinical needs.

[0038] Structural optimization: The design of the multi-layer rocker arm improves the stability of the pressing process, and the setting of the elastic part speeds up the reset speed.

[0039] In the above patent, the core idea is a double-sided pressing design, which realizes double-sided pressing from just above and just below the center of the airbag. However, for common spherical airbags, the gas inside the airbag is not completely discharged after being pressed from the upper and lower sides, but is discharged from the front part, and the rest is squeezed to the rear end of the spherical airbag (the standard squeezing degree is roughly 1 / 2~2 / 3 of the spherical airbag). On the one hand, the pressure of pressing on both sides is partially lost (the loss rate is close to half) and used to gather high-pressure gas at the rear end of the spherical airbag. On the other hand, the pressure of this pressing method is dispersed to the front and back sides of the spherical airbag. When the spherical airbag is pressed multiple times at a fixed frequency, the gas output cannot be accurately controlled, and there is also the risk of the pressing device and the spherical airbag offset.

[0040] Based on the problem that the mask needs to be pressed tightly against the patient's face by medical staff, patent CN118286625B discloses an artificial respiration first aid device, and its technical solution is as follows: Structural design The artificial respiration first aid device consists of the following parts: mounting pad, straps, oxygen tank, shoulder straps, right trachea, pressure gauge, left trachea, connecting block, mask, elastic belt, exhaust valve, regulating device, circulation device and detection device. These components work together to ensure the effective supply of oxygen and the tight fit of the mask.

[0041] Mask fit The mask is designed with a silicone pad that can deform according to the facial shape of the victim, ensuring that the mask fits tightly to the face, preventing external smoke from entering and improving the efficiency of oxygen supply.

[0042] Oxygen supply and regulation The oxygen tank is connected to the right trachea and the left trachea through a valve. The right trachea is equipped with a pressure gauge to monitor the oxygen pressure. The left trachea is connected to the mask to ensure the oxygen supply. The regulating device adaptively adjusts the oxygen flow rate according to the user's breathing intensity, including a sleeve, a rotating rod and a blade, and controls the oxygen flow rate by rotating the rotating rod.

[0043] Circulation device The circulation device includes a silicone pad, ventilation holes and ventilation tubes. Oxygen enters the ventilation holes in the silicone pad through the ventilation tubes and is then discharged from the air outlet to the mask for breathing. During this process, oxygen cools the silicone pad, bringing a cool feeling to the victim's face and improving comfort.

[0044] Respiratory intensity test The detection device includes a moving rod, a detection head and an air bag, which are used to detect the breathing strength of the victim. The moving rod is connected to the moving plate, and the detection head is fixed on the top of the moving rod. The breathing condition is judged by observing the movement of the detection head. If the breathing is weak, the firefighter can squeeze the air bag to assist breathing.

[0045] Adaptive Adjustment The regulating device also includes a baffle, a pulley assembly, a transmission rod, a turntable, a moving plate, teeth, a telescopic rod and a baffle. These components work together to enable the rotating speed of the turntable to change the oxygen intake according to the breathing frequency and speed of the victim, thereby achieving automatic regulation.

[0046] Easy to operate The design of the device takes into account the ease of operation, so that non-professionals can use it quickly in emergency situations, improving the timeliness and success rate of rescue.

[0047] Security By ensuring a tight seal between the mask and the face and a stable oxygen supply, the device improves the safety of victims in emergency situations such as fires.

[0048] Comfort and soothing effect The cooling effect of oxygen and the comfortable design of the mask not only improve the comfort of the victims, but also have a certain soothing effect and reduce panic.

[0049] In the above patent, the core idea is that the mask is designed with a silicone pad that can be deformed according to the shape of the face to ensure that the mask fits tightly to the face. However, when the artificial respiration device is used, high-pressure air is sent into the mask. The mask only fits to the face through the silicone pad, which will cause oxygen to overflow from the gap between the mask and the face, so that no positive pressure can be generated to assist the patient in breathing.

[0050] Based on the problem that the existing air bag respirator requires medical staff to use both hands at the same time and cannot be operated automatically, patent CN105056358B discloses an artificial respirator, and its technical solution is as follows: The ventilator is mainly composed of the following parts: Casing: The outer structure of the machine.

[0051] Motor: Provides power source.

[0052] Variable speed gearbox: connected to the motor, can adjust the speed.

[0053] Transmission shaft and eccentric wheel: The speed change gear box is connected to the first and second transmission shafts at the same time, driving the first and second eccentric wheels respectively.

[0054] Elastic rubber sheet: the first elastic rubber sheet corresponds to the patient's chest, and the second elastic rubber sheet is used for squeezing the airbag.

[0055] Chest strap: Secure the first elastic rubber piece.

[0056] Airbag: connected to the second elastic rubber sheet and used to simulate blowing.

[0057] Inlet valve and outlet valve: control the gas in and out of the airbag.

[0058] Mask and outlet connection tube: transmit the air in the air bag to the patient's mouth.

[0059] How it works The ventilator drives the speed-changing gearbox through the motor to achieve two different speed outputs. One speed is used to squeeze the first elastic rubber sheet to simulate the action of manual chest compression to help restore cardiopulmonary function; the other speed is used to squeeze the air bag to simulate the action of mouth-to-mouth blowing to provide the patient with necessary oxygen. By adjusting the size of the eccentric wheel, the compression depth and blowing volume can be adjusted to meet the needs of different patients.

[0060] Automation The ventilator can automatically control the frequency of compression and blowing, which complies with the World Health Organization's guidelines on cardiopulmonary resuscitation. This automatic control reduces the technical requirements for rescuers, allowing even untrained personnel to effectively perform artificial respiration.

[0061] Health and Safety Artificial ventilators avoid direct mouth-to-mouth contact between rescuers and patients, reducing the risk of disease transmission. At the same time, they improve the safety and effectiveness of treatment by ensuring that patients can breathe fresh air through the use of medical oxygen cylinders or open airways.

[0062] Easy to operate The machine is designed with easy-to-operate switches and fixing structures, such as Velcro on the chest strap, so that the device can be quickly fixed on the patient and start working. The mask is fixed to the patient's face with a strap to ensure that the gas will not leak.

[0063] Power Design A storage battery is installed inside the machine and is electrically connected to the motor, so that the machine can operate without an external power source, increasing its availability in emergency situations.

[0064] Innovation Automation: The artificial respiration is automated through the motor and speed-changing gearbox, reducing the need for manual operation.

[0065] Adjustment function: The compression depth and blowing volume can be adjusted by the size of the eccentric wheel to meet the needs of different patients.

[0066] Hygiene and safety: avoids mouth-to-mouth breathing and reduces the risk of disease transmission.

[0067] Easy to operate: The operation process is simplified so that non-professionals can use it quickly and effectively.

[0068] This patent can realize the automatic operation of artificial respiration and manual chest compression. However, in this patent, the mask is only fixed to the patient's face by a strap. When the artificial respiration device is used, high-pressure air is sent into the mask. The mask only fits the face with the strap, which will cause oxygen to overflow from the gap between the mask and the face, so that positive pressure cannot be generated to assist the patient's inhalation. Therefore, in actual operation, this patent still requires manual compression of the mask, and fails to fully realize automatic operation.

[0069] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0071] Example 1

[0072] This embodiment provides an emergency first aid breathing device, wherein one end of the telescopic cylinder type airbag 1 is connected to the driving mechanism 2, and the other end is connected to the rigid air outlet cylinder 3, and the driving mechanism 2 (cylinder) is used to compress or extend the telescopic cylinder type airbag 1; the mask 5 assembly comprises a mask 5 and an air valve assembly 4 connected to the mask 5, and specifically, the air valve assembly 4 comprises an inhalation valve 402 and an exhalation valve 401, both of which are one-way valves, and the inhalation valve 402 is connected to the rigid air outlet cylinder 3. When the telescopic cylinder compresses the airbag and generates positive air pressure, the inhalation valve 402 opens and the exhalation valve 401 closes, and oxygen is smoothly delivered to the mask 5 and into the patient's body. When the patient exhales, a natural pressure difference is generated between the air pressure in the patient's body and the atmospheric pressure, the inhalation valve 402 closes, and the exhalation valve 401 opens, and the gas exhaled by the patient is discharged through the exhalation valve 401. The mounting plate 6 is connected to the frame of the medical bed 7 and / or the bedside 701 , and the driving mechanism 2 and the rigid air outlet bag 3 are connected to the lower surface of the mounting plate 6 via a vertically arranged connecting rod 20 .

[0073] In this embodiment, a rigid air inlet cylinder 8 is also included, which has an upper opening and a bottom surface. The upper opening is connected to one end of the telescopic cylinder type airbag 1, and the bottom surface is connected to the driving mechanism 2; the airbag air inlet valve 9 is arranged on the side of the rigid air inlet cylinder 8 and is connected to the rigid air inlet cylinder 8. The reason why the air inlet cylinder and the air outlet cylinder are set to be rigid is to improve the stability of the connection. When the telescopic cylinder type airbag 1 is compressed or extended, the air inlet cylinder and the air outlet cylinder will not be deformed, which can ensure the stability of the connection with the airbag air inlet valve 9 and the connecting rod 20. The airbag air inlet valve 9 is also a one-way valve. When the telescopic cylinder type airbag 1 is compressed, the airbag air inlet valve 9 is closed, so that positive pressure is generated inside the telescopic cylinder type airbag 1. When the telescopic cylinder type airbag 1 is extended, the airbag air inlet valve 9 is opened to supplement oxygen or air. The opening and closing control of the inhalation valve 402, the exhalation valve 401 and the airbag air inlet valve 9 belongs to the prior art and will not be repeated here.

[0074] In this embodiment, a flexible connecting tube 10 is further included, one end of which is connected to the air inlet valve 402 , and the other end of which is connected to the rigid air outlet tube 3 .

[0075] Example 2

[0076] The difference between this embodiment and the first embodiment is that it further includes a rope 11, which is connected to the mask 5 and used to bind the mask 5 to the patient's face. The rope 11 is provided with two groups, which are close to the upper and lower ends of the mask 5 respectively. The rope 11 is an elastic rope. The two groups of ropes 11 can disperse the pressure to the upper and lower parts, thereby improving the comfort of the patient; the elastic connector 12 is provided between the air valve assembly 4 and the pressure plate 15. Specifically, the elastic connector 12 of this embodiment adopts a straight cylinder spring, which can be extended and retracted in the up and down directions and generate elastic force. The upper end of the spring is fixedly connected to the pressure plate 15, and the lower end is connected to the air valve assembly 4. It should be noted that in the air valve assembly 4, the inhalation valve 402 and the exhalation valve 401 are respectively located on the left and right sides, and the upper end of the air valve assembly 4 has a space for connecting with the spring, and no valve is provided here, and the mask 5 is located directly below the air valve assembly 4. The lower end of the spring is connected to the connecting plate, and the connecting plate is fixed to the upper end of the air valve assembly 4. One end of the adjusting screw 13 is connected to the pressing plate 15, and the other end passes through the mounting plate 6 and is threadedly connected to the adjusting nut 14. The adjusting nut 14 is used to adjust the distance between the pressing plate 15 and the air valve assembly 4. When the adjusting nut 14 rotates, the adjusting screw 13 moves up and down relative to the adjusting nut 14, driving the pressing plate 15 to move up and down synchronously, so that the spring generates elastic force to press down the air valve assembly 4 and the mask 5.

[0077] Example 3

[0078] The difference between this embodiment and embodiment 2 is that it also includes a drawstring 16. The bottom of the mask 5 extends downward to form a lower support 501 that matches the shape of the patient's lower jaw. When the mask 5 is close to the patient's face, the lower support 501 is connected to the patient's lower jaw, and one end of the drawstring 16 is connected to the lower support 501. The lower support 501 and the mask 5 can be made in one piece during the production process. The material is the same as the mask 5, which is silicone. Silicone has good elasticity and softness, which can not only fit the patient's lower jaw, but also ensure the patient's comfort when lifting the lower jaw. The fixed component is arranged on the upper surface of the mounting plate 6 and close to the end of the mounting plate 6 away from the mask 5. The mounting plate 6 is provided with a through groove 601 running through the upper and lower surfaces. The other end of the drawstring 16 passes through the through groove 601 and is connected to the fixed component 17. The drawstring 16 is used to pull the lower support 501 toward the fixed component 17 and lift the patient's lower jaw.

[0079] In this embodiment, the fixing assembly 17 includes: a positioning column 1701, which is vertically arranged on the upper surface of the mounting plate 6, and the positioning column 1701 is a solid cylindrical structure; an adjusting cylinder 1702 is a cylindrical structure with upper and lower openings, wherein an inner cavity is formed in the middle, and the inner cavity is adapted to the shape of the positioning column 1701 and can be sleeved on the outer side of the positioning column 1701, and the inner cavity of the adjusting cylinder 1702 and the outer surface of the positioning column 1701 are polished and smooth, and the two can slide. A plurality of clasps 1703 are evenly spaced and arranged on the outer surface of the adjusting cylinder 1702 in the vertical direction, and a hook 1601 is arranged at the other end of the pull rope 16, and the hook 1601 can be hooked on the clasp 1703. According to different patient conditions, the clasp 1703 of the appropriate height can be flexibly selected to change the angle at which the pull rope 16 pulls the lower support 501. The through slot 601 has a sufficient length, and when the clamping ring 1703 matching the pull rope 16 is changed, the pull rope 16 is always located in the through slot 601 .

[0080] In this embodiment, a plurality of identical clips 1704 are circumferentially arranged on the outer edge of the bottom of the adjusting cylinder 1702. The clips 1704 are rectangular parallelepipeds. The height of the clips 1704 does not exceed 1 / 5 of the thickness of the mounting plate 6. The upper surface of the mounting plate 6 is recessed downward corresponding to the plurality of clips 1704 to form a plurality of first slots 602. The depth of the first slots 602 is the same as the height of the clips 1704. The first slots 602 are adapted in shape to the clips 1704 (the size is slightly larger in order to reflect the position of the first slots 602 in the accompanying drawings). When the hook 1601 is hooked with the snap ring 1703, the adjusting cylinder 1702 is moved up and rotated until the pull rope 16 is in a taut state, the adjusting cylinder 1702 is moved down and the clips 1704 are engaged in the first slots 602.

[0081] In this embodiment, the upper surface of the mounting plate 6 is provided with a second slot 603 corresponding to the adjusting cylinder 1702 and the positioning column 1701. The positioning column 1701 and the adjusting cylinder 1702 are at the same height, and the lower surfaces of the two are flush. The second slot 603 is connected with the first slot 602, and the bottom surfaces of the first slot 602 and the second slot 603 are flush. Therefore, the positioning column 1701, the adjusting cylinder 1702 and the clamping member 1704 can be clamped into the mounting plate 6 together.

[0082] Example 4

[0083] The present embodiment provides a medical bed 7, including the emergency first aid breathing device disclosed in Example 3, and also includes a support column 18, the support column 18 is connected to the head 701 of the medical bed 7 and is located in the middle of the head 701, the head 701 is thicker than the existing medical bed 7, and the mounting plate 6 is hinged to the top of the support column 18 in the horizontal direction.

[0084] In this embodiment, a pre-filled oxygen cylinder is also included, which is arranged in the head 701 of the medical bed 7 and is connected to the airbag inlet valve 9, and is used to supply oxygen to the telescopic cylinder airbag 1. The head 701 is provided with a slide rail 19, which is arranged along the length direction of the medical bed 7. The bottom of the support column 18 is slidably connected to the slide rail 19 and is driven by the adjustment motor to slide along the slide rail 19.

[0085] In some other embodiments, a storage box may be provided above the bedside 701, the support column 18 is located inside the storage box, and the emergency first aid breathing apparatus may also be rotated into the storage box.

[0086] In some other embodiments, the lead screw and the lead screw nut may also be replaced with an electromagnetic control mechanism.

[0087] The working process is described in detail below in conjunction with Example 4: When the patient needs artificial respiration, the mounting plate 6 is rotated 90° to be directly above the patient, and the position of the emergency breathing device is quickly adjusted by adjusting the motor so that the mask 5 corresponds to the patient's mouth and nose, and the mask 5 is pressed down and tightly against the patient's mouth and nose by adjusting the nut 14.

[0088] The drive mechanism 2 is started, and the drive mechanism 2 intermittently compresses the telescopic cylinder-type airbag 1 at a fixed output distance and fixed frequency to form positive pressure and maintain the patient's breathing. At the same time, the medical staff selects the fixed height of the other end of the pull rope 16 according to the patient's condition, hooks the other end of the pull rope 16 on the clamping ring 1703 of the corresponding height, moves the adjustment cylinder 1702 upward and rotates it, so that the pull rope 16 is wrapped around the adjustment cylinder 1702 until the pull rope 16 is tightened and can stably pull the lower support 501, and the lower support 501 lifts the patient's lower jaw upward to keep the patient's head tilted back. After confirming the position, the adjustment cylinder 1702 moves downward, and the clamping member 1704 below the adjustment cylinder 1702 is clamped into the first clamping groove 602, and the adjustment cylinder 1702 maintains the current position until the artificial respiration ends. (It should be noted that when the adjusting tube 1702 moves downward, the lower supporting member 501 will retreat a certain distance, but the downward movement distance of the adjusting tube 1702 is very small, and the retreat distance of the lower supporting member 501 will not affect the effect of lifting the lower jaw, and can be ignored) When the patient needs to be transferred, medical staff accompanies the medical bed 7 , and the emergency first aid breathing device maintains artificial respiration operation, and the pre-filled oxygen cylinder in the head 701 of the medical bed 7 continues to supply oxygen to the telescopic tube type airbag 1 .

[0089] The gas volume of the rigid gas outlet bag 3 in Example 3 was tested. According to the artificial respiration operation standard, the oxygen supply was set to 10 liters / minute and the air bag compression frequency was set to 15 times / minute. The results are as follows:

[0090] According to the artificial respiration operation standard, the airbag is compressed 15 times within 1 minute, and the standard air outlet volume of a single compression of the airbag is approximately equal to 0.667L. As can be seen from the above table, the air outlet volumes of 15 times are all close to the standard air supply volume of a single compression of the airbag, and the maximum deviation does not exceed 0.1%, which proves that the use of this embodiment can maintain artificial respiration stably and evenly.

[0091] The driving force of the 15-time compression airbag was tested, and compared with the conventional spherical airbag gripping and pressure-delivering method, the required driving force was reduced by about 43%, proving that the present embodiment can achieve artificial respiration with a smaller driving force.

[0092] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0093] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An emergency first aid breathing device, characterized in that: include: A telescopic cylinder-type airbag (1), one end of which is connected to a driving mechanism (2) and the other end of which is connected to a rigid air outlet (3), wherein the driving mechanism (2) is used to compress or extend the telescopic cylinder-type airbag (1); A mask (5) assembly, comprising a mask (5) and an air valve assembly (4) connected to the mask (5), wherein the air valve assembly (4) is connected to the rigid air outlet tube (3); The mounting plate (6) is connected to the frame and / or the headboard (701) of the medical bed (7), and the driving mechanism (2) and the rigid air outlet bag (3) are both connected to the lower surface of the mounting plate (6).

2. An emergency first aid breathing device according to claim 1, characterized in that: Also includes: A rigid air inlet cylinder (8) having an upper opening and a bottom surface, wherein the upper opening is connected to one end of the telescopic cylinder-type airbag (1), and the bottom surface is connected to the driving mechanism (2); An air bag air intake valve (9) is arranged on a side of the rigid air intake cylinder (8) and is in communication with the rigid air intake cylinder (8).

3. An emergency first aid breathing device according to claim 1, characterized in that: Also includes: A flexible connecting pipe (10), wherein one end of the flexible connecting pipe (10) is connected to the air valve assembly (4), and the other end of the flexible connecting pipe (10) is connected to the rigid air outlet tube (3).

4. An emergency first aid breathing device according to claim 3, characterized in that: Also includes: A rope (11) connected to the mask (5) and used to tie the mask (5) to the patient's face; An elastic connecting member (12) is arranged between the air valve assembly (4) and the pressure plate (15); An adjusting screw (13) has one end connected to the pressing plate (15) and the other end passing through the mounting plate (6) and threadedly connected to an adjusting nut (14), wherein the adjusting nut (14) is used to adjust the distance between the pressing plate (15) and the air valve assembly (4).

5. An emergency first aid breathing device according to claim 4, characterized in that: Also includes: a drawstring (16), wherein the bottom of the mask (5) extends downward to form a lower support member (501) adapted to the shape of the patient's lower jaw, and when the mask (5) is in close contact with the patient's face, the lower support member (501) is in contact with the patient's lower jaw, and one end of the drawstring (16) is connected to the lower support member (501); A fixing component (17) is arranged on the upper surface of the mounting plate (6) and close to an end of the mounting plate (6) away from the mask (5); a through slot (601) is arranged on the upper and lower surfaces of the mounting plate (6); the other end of the pull rope (16) passes through the through slot (601) and is connected to the fixing component (17); the pull rope (16) is used to pull the lower support member (501) toward the fixing component (17) and lift the patient's lower jaw.

6. An emergency first aid breathing device according to claim 5, characterized in that: The fixing assembly (17) comprises: A positioning column (1701) vertically arranged on the upper surface of the mounting plate (6); An adjusting cylinder (1702), the inner cavity of which is adapted in shape to the positioning column (1701) and can be sleeved on the outer side of the positioning column (1701); A plurality of snap rings (1703) are arranged on the outer surface of the adjustment tube (1702) in a vertical direction, and a snap hook (1601) is provided at the other end of the pull rope (16), and the snap hook (1601) can be hooked onto the snap ring (1703); The outer edge of the bottom of the adjustment cylinder (1702) is provided with a plurality of identical snap-fitting parts (1704) along the circumferential direction, and the upper surface of the mounting plate (6) is provided with a plurality of first snap-fitting parts (602) corresponding to the plurality of snap-fitting parts (1704); when the snap hook (1601) is hooked with the snap ring (1703), the adjustment cylinder (1702) is moved upward and rotated until the pull rope (16) is in a taut state, and the adjustment cylinder (1702) is moved downward and the snap-fitting parts (1704) are snap-fitted into the first snap-fitting parts (602).

7. An emergency first aid breathing device according to claim 6, characterized in that: A second slot (603) is provided on the upper surface of the mounting plate (6) corresponding to the adjusting cylinder (1702) and the positioning column (1701); the second slot (603) is connected to the first slot (602), and the bottom surfaces of the first slot (602) and the second slot (603) are flush.

8. A medical bed, characterized in that: The emergency first aid breathing device according to any one of claims 1 to 7 further comprises: A support column (18), the support column (18) being connected to a frame and / or a bed head (701) of a medical bed (7), and the mounting plate (6) being hinged to the support column (18) in a horizontal direction.

9. The medical bed according to claim 8, characterized in that: Also includes: A pre-filled oxygen cylinder is arranged in the frame and / or the headboard (701) of the medical bed (7) and is used to supply oxygen to the telescopic cylinder-type airbag (1).

10. The medical bed according to claim 8, characterized in that: The frame and / or the bedside (701) of the medical bed (7) is provided with a slide rail (19), the slide rail (19) being arranged along the length direction of the medical bed (7), the bottom of the support column (18) being slidably connected to the slide rail (19) and driven by an adjustment motor to slide along the slide rail (19).

Images