Breathing assisting device for heart rehabilitation

Abstract

The invention belongs to the technical field of breathing assisting equipment, and particularly relates to a cardiac rehabilitation breathing assisting device which comprises a mounting cabin, a gas washing bottle and an adjusting mechanism. By means of the adjusting mechanism, the total oxygen supply amount is automatically shunted, during expiration, the pressure and the total flow of oxygen conveyed to a patient can be reduced, the ventilation time of the expiration stage can be prolonged, excessive expansion of pulmonary alveoli can be reduced, excessive expansion or rupture of the pulmonary alveoli is avoided, the ventilation time of the inspiration stage is shortened in the inspiration stage, and the breathing efficiency of the patient is improved. And the pressure and total flow of conveyed oxygen are increased, so that airway resistance is overcome, it is ensured that gas effectively enters pulmonary alveoli, oxygen consumption of respiratory muscles is reduced, and emission of carbon dioxide is accelerated.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary breathing equipment, and specifically refers to a respiratory auxiliary device for cardiac rehabilitation. Background Art

[0002] Patients with heart disease often have impaired cardiopulmonary function, which leads to insufficient oxygen supply and carbon dioxide retention. During recovery, they need assisted breathing devices to provide positive pressure ventilation, increase alveolar ventilation, and improve blood oxygen saturation.

[0003] In existing respiratory assistance devices, the proportion of breathing time is generally controlled by electronic devices when supplying oxygen, which has problems such as poor reliability, easy damage and difficult maintenance. In addition, the existing equipment is designed too simply and cannot automatically adjust the oxygen supply pressure during the oxygen supply process. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a breathing assistance device for cardiac rehabilitation to solve the technical problems raised in the background technology.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a respiratory assistance device for cardiac rehabilitation, including an installation cabin, an air washing bottle and an adjustment mechanism, wherein the air washing bottle is arranged in the installation cabin, and the adjustment mechanism is arranged in the installation cabin.

[0006] Furthermore, the regulating mechanism includes a ventilation system, a diversion system and a diversion pipe, the ventilation system is arranged in the installation cabin, the diversion system is arranged in the installation cabin, the diversion pipe connects the ventilation system and the diversion system at the same time, and a diversion valve is provided on the diversion pipe.

[0007] Furthermore, the ventilation system includes a ventilation channel, a venturi tube, a throat branch, a throat regulating valve and an air outlet interface, the ventilation channel is arranged in the installation cabin, the venturi tube is arranged in the ventilation channel, the throat branch is connected to the throat of the venturi tube, the throat regulating valve is arranged on the throat branch, and the air outlet interface is arranged at the end of the ventilation channel.

[0008] Furthermore, the diversion system includes a diversion channel, an adjustable resistance slider, a control trigger system, a diversion branch pipe, an air outlet grid and a decompression trigger, the diversion channel is arranged in an installation cabin, the adjustable resistance slider is slidably arranged in the diversion channel, the control trigger system is movably arranged at one end of the diversion channel, the diversion branch pipe is arranged on the side wall of the diversion channel, the air outlet grid is arranged on the side wall of one end of the diversion channel, and the decompression trigger is arranged at the other end of the diversion channel.

[0009] Further, the adjustable resistance slider includes a resistance cabin, a limit slide rod, a metal slider, a return spring, a limit rack, a limit gear, a carrying shaft, a resistance turntable, a resistance plate and a spring connecting rod. The resistance cabin is slidably arranged in the diversion channel, the limit slide rod is arranged in the resistance cabin, the metal slider is slidably arranged on the limit slide rod, one end of the return spring is fixedly connected to the metal slider, and the other end of the return spring is fixedly connected to the inner wall of the resistance cabin, the limit rack is arranged on the side wall of the metal slider, the carrying shaft is rotatably arranged on the resistance cabin, the limit gear is arranged on the carrying shaft, the resistance turntable is arranged on the carrying shaft, the resistance plate is slidably arranged on the resistance cabin, and the spring connecting rod is rotatably connected to the resistance turntable and the resistance plate at the same time.

[0010] Furthermore, the spring connecting rod includes a main rod, a secondary rod and a resistance spring, the main rod is rotationally connected to the resistance turntable, the secondary rod is rotationally connected to the resistance plate, the main rod is slidingly connected to the secondary rod, one end of the resistance spring is fixed to the main rod, and the other end of the resistance spring is fixed to the secondary rod.

[0011] Furthermore, the control trigger system includes a conversion slide rod, a sliding cover, a shock absorbing spring and a conversion trigger, the conversion slide rod is slidably connected to the diversion channel, the sliding cover is slidably connected to the conversion slide rod, one end of the shock absorbing spring is fixedly connected to the inner wall of the sliding cover, the other end of the shock absorbing spring is fixedly connected to the conversion slide rod, and the conversion trigger is arranged at the end of the conversion slide rod.

[0012] Furthermore, a strip-shaped electromagnet is installed on the side wall of the ventilation channel.

[0013] Furthermore, a magnetic clamp is provided at the end of the diversion channel, and the magnetic clamp can adsorb and fix the conversion sliding rod.

[0014] Furthermore, the pressure reducing trigger is electrically connected to the diverter valve and the throat regulating valve. When the pressure reducing trigger is triggered, the diverter valve opens and the throat regulating valve closes; the conversion trigger and the throat regulating valve are electrically connected to the diverter valve and the throat regulating valve. When the conversion trigger is triggered, the diverter valve closes and the throat regulating valve opens.

[0015] Furthermore, a long tube and a short tube are connected to the top of the gas washing bottle, and the short tube is connected to the diversion pipeline through a connecting tube.

[0016] The beneficial effects of a respiratory assistance device for cardiac rehabilitation provided by this scheme are as follows: (1) Setting up a regulating mechanism to automatically divert the total amount of oxygen supply. During exhalation, the pressure and total flow of oxygen delivered to the patient can be reduced, and the ventilation time during the exhalation phase can be extended, which can reduce excessive expansion of the alveoli and avoid excessive expansion or rupture of the alveoli. During the inhalation phase, the ventilation time during the inhalation phase can be shortened, and the pressure and total flow of oxygen delivered can be increased to overcome airway resistance, ensure that gas effectively enters the alveoli, reduce the oxygen consumption of the respiratory muscles, and accelerate the discharge of carbon dioxide; (2) The ventilation system is equipped with a Venturi tube. According to Bernoulli's theorem, the low pressure at the throat is used to draw oxygen from the shunt channel into the ventilation channel, thereby replenishing the total amount of oxygen during the inhalation process. (3) A bar electromagnet is provided, and the output power of the bar electromagnet is adjusted to change the suction force of the bar electromagnet on the metal slider. The metal slider drives the limit rack and the limit gear to increase the friction force of the resistance plate on the diversion channel, thereby realizing the adjustment of the resistance during breathing and inhalation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a respiratory assistance device for cardiac rehabilitation proposed by the present invention; Figure 2 A top view of the structure of a respiratory assistance device for cardiac rehabilitation proposed by the present invention; Figure 3 It is a cross-sectional view of the gas washing bottle along the cutting line A`-A; Figure 4 It is a structural diagram of the regulating mechanism; Figure 5 is a cross-sectional view of the ventilation system along the section line B`-B; Figure 6 It is a partial structural schematic diagram of the diversion system; Figure 7 It is a cross-sectional view of the flow distribution system along the cutting line B`-B; Figure 8 It is a schematic diagram of the internal transmission of the resistance adjustment slider; Fig. 9 It is a structural schematic diagram of a spring connecting rod; Fig.10 This is a schematic diagram of the structure of the control trigger system.

[0018] Among them, 1. installation cabin, 2. washing bottle, 3. adjustment mechanism, 4. connecting pipe, 201. long pipe, 202. short pipe, 301. ventilation system, 302. diversion system, 303. diversion pipeline, 304. diversion valve, 305. ventilation channel, 306. venturi tube, 307. throat branch pipe, 308. throat regulating valve, 309. air outlet interface, 310. diversion channel, 311. adjusting resistance slider, 312. control trigger system, 313. diversion branch pipe, 314. air outlet grid, 315. Resistance cabin, 316. Limiting slide bar, 317. Metal slider, 318. Return spring, 319. Limiting rack, 320. Limiting gear, 321. Mounting shaft, 322. Resistance turntable, 323. Resistance sheet, 324. Spring connecting rod, 325. Main rod, 326. Sub-rod, 327. Resistance spring, 328. Conversion slide bar, 329. Sliding cover, 330. Shock-absorbing spring, 331. Conversion trigger, 332. Decompression trigger, 333. Bar electromagnet, 334. Magnetic clamp.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figure 1-Figure 10 As shown, the present invention provides a respiratory assist device for cardiac rehabilitation, comprising an installation cabin 1, an air washing bottle 2 and an adjusting mechanism 3, wherein the air washing bottle 2 is arranged in the installation cabin 1, and the adjusting mechanism 3 is arranged in the installation cabin 1.

[0023] The regulating mechanism 3 includes a ventilation system 301, a shunt system 302 and a shunt pipe 303. The ventilation system 301 is arranged in the installation cabin 1, the shunt system 302 is arranged in the installation cabin 1, the shunt pipe 303 connects the ventilation system 301 and the shunt system 302 at the same time, and a shunt valve 304 is arranged on the shunt pipe 303; the ventilation system 301 includes a ventilation channel 305, a venturi tube 306, a throat branch pipe 307, a throat regulating valve 308 and an air outlet interface 309. The ventilation channel 305 is arranged in the installation cabin 1, the venturi tube 306 is arranged in the ventilation channel 305, the throat branch pipe 307 is connected to the throat of the venturi tube 306, and the throat regulating valve 308 is connected to the throat of the venturi tube 306. The valve 308 is arranged on the throat branch pipe 307, and the air outlet interface 309 is arranged at the end of the ventilation channel 305; the shunt system 302 includes a shunt channel 310, an adjustment resistance slider 311, a control trigger system 312, a shunt branch pipe 313, an air outlet grid 314 and a decompression trigger 332, the shunt channel 310 is arranged in the installation cabin 1, the adjustment resistance slider 311 is slidably arranged in the shunt channel 310, the control trigger system 312 is movably arranged at one end of the shunt channel 310, the shunt branch pipe 313 is arranged on the side wall of the shunt channel 310, the air outlet grid 314 is arranged on the side wall of one end of the shunt channel 310, and the decompression trigger 332 is arranged in the shunt channel 31 0; the resistance adjusting slider 311 includes a resistance cabin 315, a limiting slide bar 316, a metal slider 317, a return spring 318, a limiting rack 319, a limiting gear 320, a carrying shaft 321, a resistance turntable 322, a resistance sheet 323 and a spring connecting rod 324, the resistance cabin 315 is slidably arranged in the diversion channel 310, the limiting slide bar 316 is arranged in the resistance cabin 315, the metal slider 317 is slidably arranged on the limiting slide bar 316, one end of the return spring 318 is fixedly connected to the metal slider 317, the other end of the return spring 318 is fixedly connected to the inner wall of the resistance cabin 315, the limiting rack 319 is arranged on the side wall of the metal slider 317, and the carrying The rotating shaft 321 is rotatably arranged on the resistance cabin 315, the limiting gear 320 is arranged on the carrying rotating shaft 321, the resistance rotating disk 322 is arranged on the carrying rotating shaft 321, the resistance sheet 323 is slidably arranged on the resistance cabin 315, and the spring connecting rod 324 is rotatably connected with the resistance rotating disk 322 and the resistance sheet 323 at the same time; the spring connecting rod 324 includes a main rod 325, a secondary rod 326 and a resistance spring 327, the main rod 325 is rotatably connected with the resistance rotating disk 322, the secondary rod 326 is rotatably connected with the resistance sheet 323, the main rod 325 is slidably connected with the secondary rod 326, one end of the resistance spring 327 is fixedly connected with the main rod 325, and the other end of the resistance spring 327 is fixedly connected with the secondary rod 326;The control trigger system 312 includes a conversion slide bar 328, a slide cover 329, a shock absorbing spring 330 and a conversion trigger 331. The conversion slide bar 328 is slidably connected to the diversion channel 310, the slide cover 329 is slidably connected to the conversion slide bar 328, one end of the shock absorbing spring 330 is fixedly connected to the inner wall of the slide cover 329, and the other end of the shock absorbing spring 330 is fixedly connected to the conversion slide bar 328. The conversion trigger 331 is arranged at the end of the conversion slide bar 328; a bar-shaped electromagnet 333 is installed on the side wall of the ventilation channel 305; a magnetic suction clamp 334 is arranged at the end of the diversion channel 310, and the magnetic suction clamp 334 can absorb and fix the conversion slide bar 328; the top of the washing bottle 2 is connected with a long tube 201 and a short tube 202, and the short tube 202 is connected with the diversion pipeline 303 through a connecting tube 4. ;

[0024] When in use, the oxygen supply line and the gas washing bottle 2 are first connected with an oxygen delivery tube, and the oxygen enters the gas washing bottle 2 through the long tube 201, and is discharged from the short tube 202 after being cleaned and moistened by the pure water in the gas washing bottle 2; during the exhalation stage, the oxygen enters the shunt pipe 303 through the connecting pipe 4. At this time, the resistance slider 311 is adjusted to be close to the pressure reduction trigger 332, the shunt valve 304 is opened, the throat regulating valve 308 is closed, the magnetic force of the bar electromagnet 333 is increased, and the oxygen enters the ventilation system 301 and the shunt system 302 respectively from the shunt pipe 303; after the oxygen enters the ventilation channel 305, it enters the venturi tube 306. Since the throat regulating valve 308 is closed, the oxygen When the air passes through the venturi tube 306, the total flow rate remains unchanged. Thereafter, the oxygen is discharged from the air outlet interface 309 and is delivered to the patient's nasal cavity by the oxygen delivery tube. At the same time, after the oxygen enters the shunt channel 310, the oxygen pushes the resistance adjustment slider 311 to slide at a uniform speed. The bar electromagnet 333 attracts the metal slider 317. The metal slider 317 slides downward and squeezes the reset spring 318. The downward sliding of the metal slider 317 also drives the limit rack 319 to slide together. The sliding of the limit rack 319 drives the limit gear 320 to rotate. The rotation of the limit gear 320 drives the carrying shaft 321 to rotate. The rotation of the carrying shaft 321 drives the resistance turntable 322 to rotate. The rotation of 322 drives the spring connecting rod 324 to push the resistance sheet 323 outward. At the same time, the main rod 325 and the auxiliary rod 326 approach each other and squeeze the resistance spring 327. The elastic force generated by the deformation of the resistance spring 327 in the horizontal direction is equal to the friction resistance of the resistance sheet 323 to the inner wall of the diversion channel 310. Due to the interaction of forces, the resistance of the resistance adjustment slider 311 during the sliding process is equal to the pressure of the total oxygen pressure reduction (pressure overcomes friction). In the inhalation stage, when the resistance adjustment slider 311 slides and contacts the sliding cover 329, the sliding cover 329 slides and contacts the conversion trigger 331. At this time, the diversion valve 304 is closed, and the throat regulating valve 310 is closed. 08 is turned on, the magnetic force of the bar electromagnet 333 decreases, and due to the shunt valve 304, all the oxygen enters the ventilation channel 305, and because the throat regulating valve 308 is opened, the pressure at the throat position decreases (lower than the ambient pressure), and the oxygen in the shunt channel 310 enters the venturi tube 306 through the shunt branch pipe 313 and the throat branch pipe 307 in turn and merges with the oxygen in the ventilation channel 305. At this time, the oxygen flow rate discharged from the gas outlet interface 309 increases; during use, due to the interaction of forces, the suction force of the bar electromagnet 333 on the metal slider 317 is equivalent to the elastic force generated by the deformation of the reset spring 318, and according to the spring elastic force calculation formula , (where F is the elastic force, k is the spring stiffness coefficient, and x is the deformation variable). By changing the magnetic force of the bar electromagnet 333, the sliding distance of the metal slider 317 can be changed, and the transmission ratio of the limit gear 320 and the limit rack 319 can be a controllable parameter, that is, the transmission ratio of the limit gear 320 and the limit rack 319 is a controllable transmission quantity. Therefore, by changing the magnetic force of the bar electromagnet 333, the rotation angles of the resistance turntable 322, the carrying shaft 321 and the limit gear 320 can be changed at the same time, and the elastic force between the spring connecting rod 324 and the resistance sheet 323 can be changed, thereby changing the friction resistance of the resistance sheet 323 to the inner wall of the diversion channel 310. force; therefore, in the exhalation stage, the magnetic force of the bar electromagnet 333 can be increased, the sliding resistance of the resistance slider 311 can be adjusted to increase, and the sliding speed can be slowed down to reduce the pressure and total flow of oxygen delivered to the patient, and the ventilation time in the exhalation stage can be extended, which can reduce excessive expansion of the alveoli and avoid excessive expansion or rupture of the alveoli. In the inhalation stage, the magnetic force of the bar electromagnet 333 can be reduced, the sliding resistance of the resistance slider 311 can be adjusted to decrease, and the sliding speed can be increased, so as to shorten the ventilation time in the inhalation stage and increase the pressure and total flow of oxygen delivered to overcome airway resistance, ensure that the gas effectively enters the alveoli, reduce the oxygen consumption of the respiratory muscles, and accelerate the discharge of carbon dioxide.

[0025] The above is the specific working process of the present invention, and you can repeat this step next time you use it.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention.

[0028] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A respiratory assist device for cardiac rehabilitation, characterized in that: The invention comprises an installation cabin (1), a gas washing bottle (2) and an adjusting mechanism (3), wherein the gas washing bottle (2) is arranged in the installation cabin (1), and the adjusting mechanism (3) is arranged in the installation cabin (1); the adjusting mechanism (3) comprises a ventilation system (301), a flow distribution system (302) and a flow distribution pipeline (303); the ventilation system (301) is arranged in the installation cabin (1), and the flow distribution system (302) is arranged in the installation cabin (1); the flow distribution pipeline (303) connects the ventilation system (301) and the flow distribution system (302) at the same time; the flow distribution system (302) comprises a flow distribution channel (310), an adjusting resistance slider (311), and a flow distribution channel (312). 11), a control trigger system (312), a shunt branch pipe (313), an air outlet grid (314) and a decompression trigger (332), wherein the shunt channel (310) is arranged in the installation cabin (1), the adjustment resistance slider (311) is slidably arranged in the shunt channel (310), the control trigger system (312) is movably arranged at one end of the shunt channel (310), the shunt branch pipe (313) is arranged on the side wall of the shunt channel (310), the air outlet grid (314) is arranged on the side wall of one end of the shunt channel (310), and the decompression trigger (332) is arranged at the other end of the shunt channel (310).

2. A respiratory assist device for cardiac rehabilitation according to claim 1, characterized in that: The ventilation system (301) comprises a ventilation channel (305), a venturi tube (306), a throat branch pipe (307), a throat regulating valve (308) and an air outlet interface (309); the ventilation channel (305) is arranged in the installation cabin (1); the venturi tube (306) is arranged in the ventilation channel (305); the throat branch pipe (307) is connected to the throat of the venturi tube (306); the throat regulating valve (308) is arranged on the throat branch pipe (307); and the air outlet interface (309) is arranged at the end of the ventilation channel (305).

3. A respiratory assist device for cardiac rehabilitation according to claim 2, characterized in that: The resistance regulating slider (311) comprises a resistance chamber (315), a limiting slide bar (316), a metal slider (317), a return spring (318), a limiting rack (319), a limiting gear (320), a carrying shaft (321), a resistance rotating disk (322), a resistance sheet (323) and a spring connecting rod (324); the resistance chamber (315) is slidably disposed in the diversion channel (310); the limiting slide bar (316) is disposed in the resistance chamber (315); the metal slider (317) is slidably disposed on the limiting slide bar (316); one end of the return spring (318) is connected to the resistance chamber (315); The metal slider (317) is fixedly connected, the other end of the return spring (318) is fixedly connected to the inner wall of the resistance chamber (315), the limit rack (319) is arranged on the side wall of the metal slider (317), the carrying shaft (321) is rotatably arranged on the resistance chamber (315), the limit gear (320) is arranged on the carrying shaft (321), the resistance rotating disk (322) is arranged on the carrying shaft (321), the resistance sheet (323) is slidably arranged on the resistance chamber (315), and the spring connecting rod (324) is rotatably connected to the resistance rotating disk (322) and the resistance sheet (323) at the same time.

4. A respiratory assist device for cardiac rehabilitation according to claim 3, characterized in that: The spring connecting rod (324) comprises a main rod (325), a secondary rod (326) and a resistance spring (327); the main rod (325) is rotationally connected to the resistance rotating disk (322); the secondary rod (326) is rotationally connected to the resistance plate (323); the main rod (325) and the secondary rod (326) are slidingly connected; one end of the resistance spring (327) is fixedly connected to the main rod (325); and the other end of the resistance spring (327) is fixedly connected to the secondary rod (326).

5. A respiratory assist device for cardiac rehabilitation according to claim 4, characterized in that: The control trigger system (312) comprises a conversion slide bar (328), a slide cover (329), a shock absorbing spring (330) and a conversion trigger (331); the conversion slide bar (328) is slidably connected to the diversion channel (310); the slide cover (329) is slidably connected to the conversion slide bar (328); one end of the shock absorbing spring (330) is fixedly connected to the inner wall of the slide cover (329); the other end of the shock absorbing spring (330) is fixedly connected to the conversion slide bar (328); and the conversion trigger (331) is arranged at the end of the conversion slide bar (328).

6. A respiratory assist device for cardiac rehabilitation according to claim 5, characterized in that: A strip-shaped electromagnet (333) is installed on the side wall of the ventilation channel (305).

7. A respiratory assistance device for cardiac rehabilitation according to claim 6, characterized in that: A magnetic clamp (334) is provided at the end of the diversion channel (310), and the magnetic clamp (334) can absorb and fix the conversion sliding rod (328).

8. A respiratory assistance device for cardiac rehabilitation according to claim 7, characterized in that: The diversion pipeline (303) is provided with a diversion valve (304).

9. A respiratory assist device for cardiac rehabilitation according to claim 8, characterized in that: The top of the gas washing bottle (2) is connected to a long tube (201) and a short tube (202), and the short tube (202) is connected to the diversion pipeline (303) through a connecting tube (4).

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