阅读说明：本技术 一种辅助呼吸机 (Auxiliary breathing machine ) 是由 尹学军 尹柏婷 孔祥斐 于 2020-04-08 设计创作，主要内容包括：本发明属于医疗用具技术领域,公开了一种辅助呼吸机,其包括承压壳和腔压调节系统,承压壳设置在人体的至少胸腔部位,承压壳与人体之间设有密封组件,通过密封组件在承压壳与人体之间构成密闭的外呼吸腔室,腔压调节系统包括压力发生器,压力发生器与外呼吸腔室连通,腔压调节系统运行使外呼吸腔室内产生周期性变换的正压和负压、或周期性变换的正压和常压、或周期性变换的负压与常压。本发明的辅助呼吸机具有病人痛苦小、安全可靠、便于与其他抢救设备同时使用等优点,可以广泛应用于自主呼吸减弱或消失的病人的紧急抢救或日常护理等,其应用方法简单,容易操作,市场应用前景十分广阔。(The invention belongs to the technical field of medical appliances, and discloses an auxiliary breathing machine which comprises a pressure bearing shell and a cavity pressure adjusting system, wherein the pressure bearing shell is arranged at least at the thoracic cavity part of a human body, a sealing assembly is arranged between the pressure bearing shell and the human body, a closed external breathing cavity is formed between the pressure bearing shell and the human body through the sealing assembly, the cavity pressure adjusting system comprises a pressure generator, the pressure generator is communicated with the external breathing cavity, and the cavity pressure adjusting system operates to enable the external breathing cavity to generate periodically-changed positive pressure and negative pressure, or periodically-changed positive pressure and normal pressure, or periodically-changed negative pressure and normal pressure. The auxiliary respirator has the advantages of little pain of patients, safety, reliability, convenience for being used with other rescue equipment and the like, can be widely applied to emergency rescue or daily care and the like of patients with weakened or disappeared spontaneous respiration, and has simple application method, easy operation and very wide market application prospect.)

1. The utility model provides an auxiliary respirator, its characterized in that, including pressure-bearing shell and chamber pressure governing system, pressure-bearing shell sets up at human at least thorax position, is equipped with seal assembly between pressure-bearing shell and the human body, constitutes inclosed outer respiratory cavity between pressure-bearing shell and human body through seal assembly, and chamber pressure governing system includes pressure generator, and pressure generator and outer respiratory cavity intercommunication, chamber pressure governing system operation make the interior positive pressure and the negative pressure that produces the periodic transformation of outer respiratory cavity, or the positive pressure and the ordinary pressure of periodic transformation, or the negative pressure and the ordinary pressure of periodic transformation.

2. The assisted breathing machine of claim 1, further comprising a safety device comprising at least one of a positive pressure safety valve, a negative pressure safety valve, a pressure display device, and a constant pressure reset valve, the safety device being disposed on the outer breathing chamber, or on a chamber in communication with the outer breathing chamber, or on a conduit in communication with the outer breathing chamber.

3. The assisted breathing machine of claim 1, wherein the pressure-bearing shell comprises a cover body covering at least part of the front and side surfaces of the thoracic cavity of the human body, a sealing assembly is arranged at the edge of the cover body and is matched with the neck, the external contour of the chest, the body side and the waist and abdomen of the human body through the sealing assembly, the shape of the contact part of the sealing assembly and the human body is adapted to the contour of the contact part of the human body, a closed outer breathing chamber is formed between the pressure-bearing shell and the human body through the sealing assembly, the surface area of the human body covered by the outer breathing chamber accounts for more than 60% of the external surface area of the human body corresponding to the respiratory muscle group of the human body, and a fastening device is arranged.

4. The assisted breathing machine of claim 1 wherein the pressure-bearing shell is disposed around the chest cavity, the pressure-bearing shell is provided with an underarm port and a lumbar port, the sealing members are disposed at the underarm port and the lumbar port, respectively, and the shape of the portion of the sealing member in contact with the body conforms to the contour of the portion of the body in contact.

5. The assisted breathing machine of claim 1 wherein the pressure-bearing shell is disposed around the chest cavity, the pressure-bearing shell is provided with a neck port, a waist port and an upper arm port, the sealing assemblies are disposed at the neck port, the upper arm port and the waist port, respectively, and the shape of the portion of the sealing assembly in contact with the body conforms to the contour of the portion of the body in contact.

6. A secondary ventilator as claimed in claim 1, 3, 4 or 5 in which the seal assembly is made of a resilient or flexible material or a resilient or flexible material having a resilient keel located therein.

7. An assisted breathing apparatus according to claim 4 or 5 wherein the pressure bearing housing comprises an upper pressure bearing housing and a lower pressure bearing housing, and a sealing structure and a locking structure are provided between the upper pressure bearing housing and the lower pressure bearing housing.

8. A secondary ventilator as claimed in claim 7 wherein the lower pressure housing is integral with or part of the patient's bed.

9. The assisted breathing machine of claim 7 wherein the sealing structure comprises an elastomeric sealing member, a magnetically-attractable sealing member, a suction-cup sealing member, or an inflatable sealing member, and wherein the locking structure comprises a fastener connection, a snap connection, or a hook-and-loop fastener connection.

10. A secondary ventilator as claimed in claim 1 further comprising an abdominal breathing restriction device comprising an abdominal breathing restriction band or an abdominal breathing restriction mask.

11. The assisted breathing apparatus of claim 1 wherein the chamber pressure regulating system further comprises a controller, a power device and a transmission mechanism, the controller controlling the power device to operate, the transmission mechanism being driven to drive the pressure generator to operate to produce the periodic pressure change.

12. An assisted breathing apparatus according to claim 11, wherein the transmission mechanism comprises a crank-link mechanism, a rack-and-pinion mechanism, a screw mechanism or a ball screw mechanism, and the power device comprises a direct current motor, an alternating current motor, a servo motor, a variable frequency motor, a pneumatic motor, a hand wheel or a crank handle, which are directly driven or provided with a speed reducer.

13. The assisted breathing apparatus of claim 1 wherein the chamber pressure regulating system further comprises a controller and a pressure regulating valve, the pressure generator being a source of a pressure-stabilized gas in communication with the outer breathing chamber through the pressure regulating valve, the controller controlling the pressure regulating valve to produce a periodic pressure output to produce a periodic alternating pressure in the outer breathing chamber.

14. The assisted breathing apparatus of claim 1 wherein the pressure generator is separate from the pressure housing and the pressure generator is in communication with the outer breathing chamber within the pressure housing via tubing.

15. The assisted breathing machine of claim 1 wherein the pressure generator is disposed on the pressure housing, the pressure generator communicating with an outer breathing chamber within the pressure housing.

16. The assisted breathing machine of claim 1 wherein the pressure generator comprises a fan, an air compressor or a working cylinder comprising a piston cylinder or a bladder cylinder.

17. The assisted breathing machine of claim 1 wherein the chamber pressure regulation system further comprises at least one of: the system comprises an input system, a display system, a pressure sensing system, a servo system, a safety detection system and an alarm system.

18. An assisted breathing apparatus according to claim 17 wherein the servo system includes a pressure sensor, a body muscle electrical sensor, a signal processor, a controller, a computer and control software.

19. The assisted breathing machine of claim 1 wherein the chamber pressure regulation system further comprises a computer and intelligent control software, the control software including at least one of the following programs: the system comprises an input interface, a display interface, a safety detection program, a parameter optimization suggestion program and an alarm program.

20. A method of using an assisted breathing apparatus according to any of claims 1 to 19, comprising the steps of:

s1, arranging the auxiliary respirator on the chest of the human body, and forming an outer breathing chamber between the pressure-bearing shell and the human body;

s2, setting corresponding modes and parameters according to the breathing condition of the patient;

and S3, starting the cavity pressure adjusting system to generate periodically changed air pressure in the external breathing cavity to assist the breathing muscle group of the patient to drive the lung of the patient to breathe.

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to an auxiliary breathing machine for assisting a patient who cannot breathe normally to breathe.

Background

Aerobic respiration is an important physiological activity for acquiring oxygen necessary for life of a human body, life can be maintained only by ensuring normal respiration, and for some patients who cannot breathe spontaneously due to injuries and diseases and the like, breathing assistance or respiratory rescue needs to be carried out by using a breathing machine. Present various breathing machine equips, mainly dock with patient's respiratory from oronasal department, and then help patient to realize breathing in and exhaling, the oronasal of mild disease patient is covered by the respiratory mask, speak, expectoration, diet is all very inconvenient, many severe patients are in the assisted respiration when, still need to carry out other operations such as clear phlegm blowdown, because oronasal department available space is limited, sometimes have to implement measures such as trachea incision intubate ventilates to patient, just can provide sufficient equipment operating space and intervention interface for carrying out multiple operation simultaneously, cause great injury to patient's health.

In summary, there is an urgent need in the market for an assisted ventilator that facilitates the daily needs of a patient, such as speaking, expectoration, diet, etc., and is also convenient for use with other rescue equipment.

Disclosure of Invention

The invention aims to solve the problems and provides an auxiliary breathing machine which does not occupy the space at the mouth and the nose, is convenient for the patient to speak, spit, eat and the like in daily needs and is also convenient to be used together with other rescue equipment.

The auxiliary breathing machine is realized by the following steps that the auxiliary breathing machine comprises a pressure bearing shell and a cavity pressure adjusting system, wherein the pressure bearing shell is arranged at least at the thoracic cavity part of a human body, a sealing assembly is arranged between the pressure bearing shell and the human body, a closed external breathing cavity is formed between the pressure bearing shell and the human body through the sealing assembly, the cavity pressure adjusting system comprises a pressure generator, the pressure generator is communicated with the external breathing cavity, and the cavity pressure adjusting system operates to enable the external breathing cavity to generate periodically-changed positive pressure and negative pressure or periodically-changed positive pressure and normal pressure or periodically-changed negative pressure and normal pressure.

In order to improve the safety, the auxiliary breathing machine of the invention can further comprise a safety device, the safety device comprises at least one of a positive pressure safety valve, a negative pressure safety valve, a pressure display device and a normal pressure reset valve, and the safety device is arranged on the outer breathing chamber, or on a chamber communicated with the outer breathing chamber, or on a pipeline communicated with the outer breathing chamber

The interface structure of the pressure-bearing shell matched with the human body can be diversified according to different parts matched with the human body, for example, the pressure-bearing shell comprises a cover body covering at least partial front and side surfaces of the thoracic cavity of the human body, a sealing component is arranged at the edge of the cover body and matched with the neck, the external profile of the chest, the body side and the waist and abdomen of the human body through the sealing component, the shape of the contact part of the sealing component and the human body is matched with the profile of the contact part of the human body, a closed outer breathing cavity is formed between the pressure-bearing shell and the human body through the sealing component, the surface area of the human body covered by the outer breathing cavity accounts for more than 60% of the external surface area of the human body corresponding to the respiratory; or the pressure-bearing shell is arranged around the chest cavity, the pressure-bearing shell is provided with an armpit port and a waist-abdomen port, the sealing components are respectively arranged at the armpit port and the waist-abdomen port, and the shape of the contact part of the sealing components and the human body is adapted to the outline of the contact part of the human body; or the pressure-bearing shell is arranged around the chest cavity, the pressure-bearing shell is provided with a neck port, a waist port and an upper arm port, the sealing assemblies are respectively arranged at the neck port, the upper arm port and the waist port, and the shape of the part of the sealing assembly, which is in contact with the human body, is adapted to the outline of the part of the human body in contact with the sealing assemblies. The pressure-bearing shell can be made of metal or plastic materials, and can be specifically made of ABS, polycarbonate, acrylic, PP, PE, PVC, stainless steel, aluminum alloy, carbon fiber plates or glass fiber reinforced plastics and other materials. Wherein, the sealing component is made of elastic material or flexible material, or made of elastic material or flexible material with an elastic keel arranged inside. Specifically, the elastic material comprises elastic rubber (including silicone rubber and latex), elastic polyurethane, PVC and the like, the flexible material comprises leather and fiber-reinforced elastic material and the like, and preferably, the sealing component adopts a sucker type sealing structure or an inflatable sealing structure. In order to facilitate the positioning and fixing of the patient, the auxiliary breathing machine of the invention may further comprise an auxiliary sealing and tightening device, wherein the auxiliary sealing and tightening device is arranged on the pressure-bearing shell or the sealing assembly.

In addition, in order to be conveniently assembled with a human body in a matching manner, the pressure bearing shell can adopt a split type structure, for example, the pressure bearing shell comprises an upper pressure bearing shell and a lower pressure bearing shell, and a sealing structure and a locking structure are arranged between the upper pressure bearing shell and the lower pressure bearing shell. As a special class of embodiments, the lower pressure housing may be integrated or part of the bed. The sealing structure comprises an elastomer sealing component, a magnetic suction type sealing component, a sucker type sealing component or an inflatable type sealing component, and the locking structure comprises a fastener connecting structure, a buckle connecting structure or a fastening tape connecting structure. In order to avoid adverse effects of abdominal respiration of a patient in the assisted respiration process, the assisted respiration machine can further comprise an abdominal respiration restraint device, and the abdominal respiration restraint device comprises an abdominal respiration restraint belt or an abdominal respiration restraint cover.

The cavity pressure regulating system can also comprise a controller, a transmission mechanism and a power device, wherein the controller controls the power device to work, and the transmission mechanism is driven to drive the pressure generator to work to generate periodic pressure change. The power device comprises a direct-drive or speed-reducer-equipped direct-current motor, an alternating-current motor, a servo motor, a variable-frequency motor, a pneumatic motor, a manual hand wheel or a manual crank and the like. In addition, the chamber pressure regulating system may also include a controller and a pressure regulating valve, the pressure generator being a pressure-stabilized gas source that is in communication with the outer breathing chamber through the pressure regulating valve, the controller controlling the pressure regulating valve to generate a periodic pressure output to generate a periodic alternating pressure within the outer breathing chamber.

In the auxiliary breathing machine, the pressure generator and the pressure bearing shell can be arranged in a split way, and the pressure generator is communicated with an outer breathing chamber in the pressure bearing shell through a pipeline; alternatively, a pressure generator is disposed on the pressure housing, the pressure generator communicating with an outer breathing chamber within the pressure housing. The pressure generator comprises a fan, an air compressor, a working cylinder and the like, wherein the working cylinder comprises a cylinder with a specific structure such as a piston cylinder or a gasbag cylinder.

In order to improve the intelligence level and facilitate the application and operation, the cavity pressure adjusting system further comprises at least one of the following systems: the system comprises an input system, a display system, a pressure sensing system, a servo system, a safety detection system and an alarm system, wherein as a typical technical scheme, the servo system can comprise a pressure sensor, a human body myoelectric sensor, a signal processor, a controller, a computer and control software; of course, the chamber pressure regulating system may also include a computer and intelligent control software, the control software including at least one of the following programs: the system comprises an input interface, a display interface, a safety detection program, a parameter optimization suggestion program and an alarm program.

Another object of the present invention is to provide a method for using the above-mentioned assisted breathing apparatus, which comprises the following steps:

s1, arranging the auxiliary respirator on the chest of the human body, and forming an outer breathing chamber between the pressure-bearing shell and the human body;

s2, setting corresponding modes and parameters according to the breathing condition of the patient;

and S3, starting the cavity pressure adjusting system to generate periodically changed air pressure in the external breathing cavity to assist the breathing muscle group of the patient to drive the lung of the patient to breathe.

It should be noted that the modes and parameters described in step S2 include, but are not limited to, breathing rate, pressure amplitude of the outer breathing chamber, or pressure time-course curve. When the auxiliary breathing machine is used, if needed, oxygen can be inhaled through the mouth or the nostrils in a matching mode, and the treatment effect is better.

The auxiliary breathing machine of the invention utilizes the pressure bearing shell and the sealing component to construct an external breathing cavity together with a human body, and then utilizes the cavity pressure regulating system to generate periodically-changed positive pressure and negative pressure, or positive pressure and normal pressure, or negative pressure and normal pressure in the external breathing cavity, so as to realize the actions of assisting the breathing muscle groups of a patient, overcome the breathing resistance and drive the lung of the patient to breathe. Compared with the traditional breathing machine, the auxiliary breathing machine provided by the invention directly acts on the outside of the thoracic cavity of a human body, does not need to invade a respiratory system, has no any wound on the body of a patient, does not cause additional pain to the patient, and is economical, sanitary, safe and reliable. Particularly, in the using process, the device does not occupy the space at the mouth and the nose, does not influence the speaking, spitting and eating of the patient, does not influence other operations such as sputum clearing and oxygen inhalation, can be used with other rescue equipment simultaneously, is very convenient, and is beneficial to better treatment and faster rehabilitation of the patient.

In conclusion, the auxiliary respirator has the advantages of small pain of patients, safety, reliability, convenience for being used with other rescue equipment and the like, can be widely applied to emergency rescue or daily care of patients with weakened or disappeared spontaneous respiration, and has the advantages of simple application method, easy operation and very wide market application prospect.

Drawings

Fig. 1 is a schematic structural diagram and an application diagram of an assisted breathing machine according to the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a schematic structural diagram and a second application diagram of the assisted breathing apparatus of the present invention.

Fig. 4 is a third schematic view of the structure and application of the assisted breathing apparatus of the present invention.

FIG. 5 is a fourth schematic view of the structure and application of the assisted breathing apparatus of the present invention.

Fig. 6 is a schematic view of the structure and application of the assisted breathing apparatus of the present invention.

FIG. 7 is a schematic view of an auxiliary ventilator according to the sixth embodiment of the present invention.

Fig. 8 is a sectional view taken along line B-B of fig. 7.

Detailed Description