CN220256913U

CN220256913U - Integrated gas circuit detection mechanism and breathing machine

Info

Publication number: CN220256913U
Application number: CN202321976806.5U
Authority: CN
Inventors: 唐克锋; 胡国亮; 张孝俊; 王瑞强
Original assignee: Ambulanc Shenzhen Tech Co Ltd
Current assignee: Ambulanc Shenzhen Tech Co Ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-12-29
Anticipated expiration: 2033-07-24

Abstract

The utility model belongs to the technical field of medical appliances, and particularly relates to an integrated gas circuit detection mechanism and a breathing machine. The integrated gas circuit detection mechanism comprises a paramagnetic oxygen analyzer, a chemical oxygen battery, a pressure release valve and a seat body, wherein an inner space, an air inlet hole, an air outlet hole, a first detection hole, a second detection hole and a pressure release hole are formed in the seat body, and the air inlet hole, the air outlet hole, the first detection hole, the second detection hole and the pressure release hole are all communicated with the inner space; the pressure relief valve is arranged in the pressure relief hole; the paramagnetic oxygen analyzer is detachably arranged on the seat body and is used for detecting the oxygen concentration of the gas in the inner space through the first detection hole; the chemical oxygen battery is detachably mounted on the base body and is used for detecting the oxygen concentration of the gas in the inner space through the second detection hole. According to the utility model, the integrated gas circuit detection mechanism can be integrally arranged on the breathing machine, so that the convenience in disassembly and assembly of the integrated gas circuit detection mechanism is improved.

Description

Integrated gas circuit detection mechanism and breathing machine

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to an integrated gas circuit detection mechanism and a breathing machine.

Background

The breathing machine is a medical instrument which can replace, control or change normal physiological breathing of people, strengthen the ventilation of the lung, improve the respiratory function, lighten the consumption of breathing work and save the heart reserve capacity. The gas output by the breathing machine needs to have proper oxygen concentration and pressure, and if the oxygen concentration of the gas output by the breathing machine is too low or too high, the oxygen uptake and health of a patient can be affected; if the pressure of the gas output by the breathing machine is too high, the gas with the too high pressure can attack the lung of the patient; therefore, the ventilator is integrated with an oxygen concentration sensor and a pressure relief valve to ensure that the pressure and oxygen concentration of the ventilator output gas are both within a proper range.

In the prior art, the breathing machine is provided with the peroxy concentration sensor and the pressure relief valve, but the oxygen concentration sensor and the pressure relief valve are respectively arranged at different parts of the breathing machine, the breathing machine is required to be installed step by step, the overhauling and the dismounting of the breathing machine are not facilitated, and the technical problem that the oxygen concentration measurement is not accurate enough for the oxygen concentration of the existing breathing machine is also solved.

Disclosure of Invention

The utility model solves the technical problem that an oxygen concentration sensor and a pressure relief valve are inconvenient to assemble and disassemble on a breathing machine in the prior art, and provides an integrated gas circuit detection mechanism and the breathing machine.

In view of the above problems, the integrated gas circuit detection mechanism provided by the embodiment of the utility model comprises a paramagnetic oxygen analyzer, a chemical oxygen battery, a pressure release valve and a seat body, wherein an inner space, and an air inlet hole, an air outlet hole, a first detection hole, a second detection hole and a pressure release hole which are all communicated with the inner space are arranged on the seat body; the pressure relief valve is arranged in the pressure relief hole;

the paramagnetic oxygen analyzer is detachably arranged on the seat body and is used for detecting the oxygen concentration of the gas in the inner space through the first detection hole; the chemical oxygen battery is detachably mounted on the base body and is used for detecting the oxygen concentration of the gas in the inner space through the second detection hole.

Optionally, the pressure release valve comprises an elastic piece, a supporting seat, a plugging piece and a valve cylinder with an inner hole, wherein the supporting seat is provided with a central hole and a plurality of side holes which are arranged around the central hole at intervals, the valve cylinder is inserted into the pressure release hole, the supporting seat is slidably arranged in the inner hole, and the inner space is communicated with the inner hole through the side holes;

the plugging piece comprises a plugging plate and a guide rod connected with the plugging plate, and one end of the guide rod, which is far away from the plugging plate, is inserted into the central hole; the inner wall of the inner hole is provided with a boss, and two opposite ends of the elastic piece are respectively abutted with the boss and the supporting seat.

Optionally, an external thread is arranged on the guide rod, an internal thread is arranged on the inner wall of the central hole, and the guide rod is inserted into the central hole through the internal thread and the external thread which are in threaded connection.

Optionally, a rotary groove is formed in the surface, away from the guide rod, of the plugging plate.

Optionally, the boss is annular boss, the relief valve is still including cup jointing the sealing washer on the shutoff board, the shutoff board through with annular boss butt the sealing washer shutoff hole.

Optionally, a sliding groove is formed in the inner wall of the inner hole, a sliding block is arranged on the supporting seat, and the supporting seat is slidably mounted in the inner hole through the sliding block which is slidably inserted into the sliding groove.

Optionally, the seat body is further provided with an air suction hole communicated with the inner space, and the integrated air path detection mechanism further comprises a one-way valve installed in the air suction hole, wherein the one-way valve is used for controlling air in the external environment to flow into the inner space in one way through the air suction hole.

Optionally, the one-way valve comprises a fixed disc and a valve clack, the fixed disc is provided with a guide hole and a plurality of side through holes which are arranged at intervals around the guide hole, and the valve clack comprises a valve disc and a guide rod which is connected with the valve disc; the fixed disc is arranged in the air suction hole, and one end of the guide rod, which is far away from the valve disc, is slidably inserted into the guide hole; the valve disc is positioned on one side of the air inlet hole facing the inner space, and the valve disc is used for blocking or conducting the side through hole.

Optionally, the one-way valve further comprises a fixing plate mounted on the base, and the fixing plate is used for pressing the fixing disc into the air suction hole.

The utility model further provides a breathing machine, which comprises the integrated air path detection mechanism.

In the utility model, a user can install the paramagnetic oxygen analyzer or the chemical oxygen battery on the base according to actual demands, so that the paramagnetic oxygen analyzer or the chemical oxygen battery is used for detecting the oxygen concentration of the gas in the internal space; the user can also install paramagnetic oxygen analyzer with the chemical oxygen cell all simultaneously on the pedestal, utilizes paramagnetic oxygen analyzer with the chemical oxygen cell detects simultaneously gaseous oxygen concentration in the inner space, utilizes paramagnetic oxygen analyzer with the oxygen concentration that chemical oxygen cell detected compares, judges whether chemical oxygen cell is in its normal detection life-span to the degree of accuracy of this integrated gas circuit detection mechanism detection oxygen concentration has been ensured.

In addition, the pressure release valve is installed in the pressure release hole, when the gas pressure in the inner space is greater than the preset pressure, the pressure release valve channel is used for discharging the gas in the inner space through the pressure release hole, so that the gas pressure output by the inner space through the gas outlet hole is ensured to be in a proper range. In the utility model, the integrated gas circuit detection mechanism is integrated with the paramagnetic oxygen analyzer, the chemical oxygen battery and the pressure release valve, so that the integration level of the integrated gas circuit detection mechanism is improved, and the integrated gas circuit detection mechanism can be integrally arranged on a respirator, thereby improving the convenience of disassembly and assembly of the integrated gas circuit detection mechanism.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an integrated gas circuit detection mechanism according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an integrated gas circuit detection mechanism according to an embodiment of the present utility model

Fig. 3 is a schematic structural diagram of a pressure release valve of an integrated gas circuit detection mechanism according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a pressure relief valve of an integrated gas circuit detection mechanism according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a check valve of an integrated gas circuit detection mechanism according to an embodiment of the present utility model.

Reference numerals in the specification are as follows:

1. a paramagnetic oxygen analyzer; 2. a chemical oxygen cell; 3. a pressure release valve; 31. an elastic member; 32. a support base; 321. a central bore; 322. a side hole; 323. a slide block; 33. a blocking member; 331. a plugging plate; 3311. a rotary groove; 332. a guide rod; 34. a valve cylinder; 341. an inner bore; 342. a boss; 343. a chute; 35. a seal ring; 4. a base; 41. an inner space; 42. an air inlet hole; 43. an air outlet hole; 44. a first detection hole; 45. a pressure relief hole; 46. an air suction hole; 5. a one-way valve; 51. a fixed plate; 511. a guide hole; 512. a side through hole; 52. a valve flap; 521. a valve disc; 522. a guide rod; 53. and a fixing plate.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1 and 2, an embodiment of the present utility model provides an integrated gas path detection mechanism, which includes a paramagnetic oxygen analyzer 1, a chemical oxygen cell 2, a pressure release valve 3, and a seat body 4, wherein an inner space 41, an air inlet hole 42, an air outlet hole 43, a first detection hole 44, a second detection hole (not shown in the figure), and a pressure release hole 45, which are all communicated with the inner space 41, are provided on the seat body 4; the pressure relief valve 3 is installed in the pressure relief hole 45; it can be understood that the seat body 4 corresponds to a five-way pipe, and the air inlet hole 42, the air outlet hole 43, the first detection hole 44, and the second detection hole are respectively disposed in any five directions of the six directions of up, down, left, right, front, rear, and front of the seat body 4.

The paramagnetic oxygen analyzer 1 is detachably mounted on the housing 4, and is used for detecting the oxygen concentration of the gas in the internal space 41 through the first detection hole 44; the chemical oxygen cell 2 is detachably mounted on the housing 4, and is configured to detect the oxygen concentration of the gas in the internal space 41 through the second detection hole. It can be understood that, when the paramagnetic oxygen analyzer 1 is mounted on the base 4, the detection port of the paramagnetic oxygen analyzer 1 is communicated with the first detection hole 44, and the paramagnetic oxygen analyzer 1 is a gas phase analyzer applying the electron spin resonance technology, and has the advantages of high sensitivity, good stability, and the like; when the chemical oxygen battery 2 is mounted on the base 4, the detection port of the chemical oxygen battery 2 is communicated with the second detection hole, and under the conditions of constant working pressure and constant temperature, the voltage value generated by the chemical oxygen battery 2 is in direct proportion to the oxygen concentration, and the chemical oxygen battery 2 has a certain service life.

In the utility model, a user can install the paramagnetic oxygen analyzer 1 or the chemical oxygen battery 2 on the base 4 according to actual demands, so as to select to use the paramagnetic oxygen analyzer 1 or the chemical oxygen battery 2 to detect the oxygen concentration of the gas in the inner space 41; the user can also install the paramagnetic oxygen analyzer 1 and the chemical oxygen cell 2 on the base 4 at the same time, and detect the gas oxygen concentration in the internal space 41 by using the paramagnetic oxygen analyzer 1 and the chemical oxygen cell 2, and compare the oxygen concentrations detected by using the paramagnetic oxygen analyzer 1 and the chemical oxygen cell 2 to determine whether the chemical oxygen cell 2 is within the normal detection life of the chemical oxygen cell 2, thereby ensuring the accuracy of the oxygen concentration detected by the integrated gas circuit detection mechanism.

In addition, the pressure relief valve 3 is installed in the pressure relief hole 45, and when the gas pressure in the internal space 41 is greater than a preset pressure, the pressure relief valve 3 is passed through, and the gas in the internal space 41 is discharged through the pressure relief hole 45, thereby ensuring that the gas pressure output from the internal space 41 through the gas outlet hole 43 is within a proper range. In the utility model, the integrated gas circuit detection mechanism is integrated with the paramagnetic oxygen analyzer 1, the chemical oxygen battery 2 and the pressure release valve 3, so that the integration level of the integrated gas circuit detection mechanism is improved, and the integrated gas circuit detection mechanism can be integrally arranged on a respirator, thereby improving the convenience of disassembly and assembly of the integrated gas circuit detection mechanism.

In an embodiment, as shown in fig. 1 to 4, the pressure release valve 3 includes an elastic member 31, a support seat 32, a blocking member 33, and a valve cylinder 34 having an inner hole 341, the support seat 32 is provided with a central hole 321 and a plurality of side holes 322 spaced around the central hole 321, the valve cylinder 34 is inserted into the pressure release hole 45, the support seat 32 is slidably mounted in the inner hole 341, and the inner space 41 communicates with the inner hole 341 through the side holes 322; it will be appreciated that the elastic member 31 includes, but is not limited to, springs, etc., and the number of the side holes 322 may be designed according to practical needs, for example, the side holes 322 are provided with 2, 3, etc.

The blocking member 33 includes a blocking plate 331 and a guide rod 332 connected to the blocking plate 331, and an end of the guide rod 332 remote from the blocking plate 331 is inserted into the central hole 321; the inner wall of the inner hole 341 is provided with a boss 342, and opposite ends of the elastic member 31 are respectively abutted against the boss 342 and the supporting seat 32. It will be appreciated that the boss 342 extends toward the center of the inner bore 341, the elastic member 31 may provide a pre-load force to the blocking member 33 toward the inner space 41, and the gas in the inner bore 341 may provide a thrust force to the blocking member 33 directed away from the inner space 41; when the gas pressure in the inner space 41 is smaller, the pretightening force is greater than the pushing force, and the plugging plate 331 abuts against the outlet of the inner hole 341, and at this time, the plugging plate 331 may play a role in plugging the inner hole 341; when the gas pressure in the inner space 41 is greater, the pretightening force is smaller than the pushing force, the plugging piece 33 and the supporting seat 32 move in the inner hole 341, the plugging plate 331 is far away from the outlet of the inner hole 341, at this time, the plugging plate 331 can play a role in conducting the inner hole 341, and the high-pressure gas in the inner space 41 is discharged through the side hole 322 and the inner hole 341 to play a role in pressure relief; during the movement of the blocking member 33 and the supporting seat 32 in the inner hole 341, the supporting seat 32 will gradually compress the elastic member 31, and the rebound force of the elastic member 31 on the blocking member 33 will gradually increase until the elastic force is greater than the pushing force, and the supporting seat 32 and the blocking member 33 will stop moving. In this embodiment, the pressure release valve 3 has a simple structure, convenient installation and low manufacturing cost.

In one embodiment, as shown in fig. 1, the guide rod 332 is provided with an external thread, the inner wall of the central hole 321 is provided with an internal thread, and the guide rod 332 is inserted into the central hole 321 through the internal thread and the external thread which are in threaded connection. It may be appreciated that the guide rod 332 is in threaded connection with the support base 32, and by rotating the blocking member 33, the support base 32 may move along the guide rod 332, so as to adjust the compression amount of the support base 32 on the elastic member 31, thereby achieving the effect of adjusting the pressure relief pressure of the pressure relief valve 3. In this embodiment, the pressure relief pressure of the pressure relief valve 3 is adjustable, so that the applicability and universality of the integrated gas circuit detection mechanism are improved.

In an embodiment, as shown in fig. 4, a spiral groove 33113311 is provided on the surface of the plugging plate 331 away from the guide bar 332. It will be appreciated that the screw 33113311 includes, but is not limited to, a straight groove, a cross groove, etc., and that a user may insert a driver into the screw 33113311 to rotate the closure member 33.

In an embodiment, as shown in fig. 4, the boss 342 is an annular boss, the pressure release valve 3 further includes a sealing ring 35 sleeved on the plugging plate 331, and the plugging plate 331 plugs the inner hole 341 through the sealing ring 35 abutting against the annular boss. As can be appreciated, the annular boss is disposed at the outlet of the bore 341, and the seal ring 35 includes, but is not limited to, a packing, a gasket, etc.; when the blocking plate 331 seals the inner hole 341, the blocking plate 331 compresses the sealing ring 35 against the annular boss, thereby ensuring tightness of the sealing plate 331 for sealing the inner hole 341.

In an embodiment, as shown in fig. 4 and 5, a sliding groove 343 is provided on the inner wall of the inner hole 341, a sliding block 323 is provided on the supporting seat 32, and the supporting seat 32 is slidably mounted in the inner hole 341 through the sliding block 323 slidably inserted in the sliding groove 343. It will be appreciated that the sliding groove 343 extends along the center line of the inner hole 341, and the sliding block 323 is slidably inserted into the sliding groove 343, so that when the plugging member 33 is rotated, the supporting seat 32 does not rotate in the inner hole 341 but moves along the sliding groove 343, so that the compression amount of the elastic member 31 can be adjusted.

In an embodiment, as shown in fig. 1 and 2, the base is further provided with an air suction hole 46 communicating with the inner space, and the integrated air path detecting mechanism further includes a one-way valve 5 installed in the air suction hole 46, where the one-way valve 5 is used to control air in the external environment to flow into the inner space 41 unidirectionally through the air suction hole 46. It will be appreciated that the check valve 5 ensures that air in the external environment can flow into the internal space 41 in one direction, while the gas in the internal space 41 does not flow out of the external environment through the suction hole 46.

Specifically, when the front end of the air inlet hole is blocked (that is, the air inlet hole does not flow into the inner space 41), the patient inhales through the air outlet hole, so that the inner space 41 forms a negative pressure state, the inner space 41 in the negative pressure state is connected with the one-way valve 5, so that the patient can suck air in the external environment through the air outlet hole, the inner space 41 and the air suction hole 46, the suffocation accident of the breathing machine caused by blocking is avoided, and the safety of the integrated air path detection mechanism is improved.

In one embodiment, as shown in fig. 2 and 5, the check valve 5 includes a fixed disc 51 and a valve flap 52, the fixed disc 51 is provided with a guide hole 511 and a plurality of side through holes 512 spaced around the guide hole 511, and the valve flap 52 includes a valve disc 521 and a guide rod 522 connected to the valve disc 521; the fixed disc 51 is installed in the air suction hole 46, and one end of the guide rod 522, which is far away from the valve disc 521, is slidably inserted into the guide hole 511; the valve disc 521 is located at a side of the intake hole 42 facing the inner space 41, and the valve disc 521 is used to block or communicate with the side through hole 512. It should be appreciated that the number of the side through holes 512 may be designed according to practical needs, for example, the side through holes 512 are provided with 2, 3, etc., and the valve disc 521 and the guide rod 522 are integrally formed as a structural member; the outer wall of the fixed disk 51 is in sealing abutting connection with the inner wall of the air inlet hole 42.

Specifically, when the front end of the air inlet hole is blocked (i.e., the air inlet hole does not flow into the inner space 41), the patient inhales through the air outlet hole, so that the inner space 41 forms a negative pressure state, the inner space 41 in the negative pressure state drives the valve disc 521 to move in a direction away from the fixed disc 51, the guide rod 522 slides in the guide hole 511, the valve disc 521 is away from the fixed disc 51 to communicate with the side through hole 512, and thus air in the external environment can flow into the inner space 41 through the side through hole 512 and the air inlet hole 46 and further flow into the patient end through the air outlet hole; when the front end of the air inlet hole is not blocked, the air (with a certain pressure) in the inner space 41 drives the fixed disc 51 to move towards a direction away from the inner space 41, and the valve disc 521 is abutted against the fixed disc 51 to block the side through hole 512, so that the air in the inner space 41 does not flow out through the air inlet hole 46 but flows out to the patient end through the air outlet hole. In this embodiment, the check valve 5 has a simple structure, convenient installation and low manufacturing cost.

In one embodiment, as shown in fig. 1, the check valve 5 further includes a fixing plate 53 mounted on the base 4, and the fixing plate 53 is used to compress the fixing disc 51 in the air suction hole 46. As can be appreciated, the fixing plate 53 is fixed to the valve seat and is located outside the suction hole 46, so that the fixing plate 53 can prevent the fixing plate 51 from falling off from the suction hole 46.

The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The integrated gas circuit detection mechanism is characterized by comprising a paramagnetic oxygen analyzer, a chemical oxygen battery, a pressure release valve and a seat body, wherein an inner space, an air inlet hole, an air outlet hole, a first detection hole, a second detection hole and a pressure release hole are formed in the seat body, and the air inlet hole, the air outlet hole, the first detection hole, the second detection hole and the pressure release hole are all communicated with the inner space; the pressure relief valve is arranged in the pressure relief hole;

2. The integrated gas circuit detection mechanism according to claim 1, wherein the pressure release valve comprises an elastic piece, a supporting seat, a plugging piece and a valve cylinder provided with an inner hole, the supporting seat is provided with a central hole and a plurality of side holes which are arranged at intervals around the central hole, the valve cylinder is inserted into the pressure release hole, the supporting seat is slidably arranged in the inner hole, and the inner space is communicated with the inner hole through the side holes;

3. The integrated gas circuit detection mechanism according to claim 2, wherein the guide rod is provided with external threads, the inner wall of the central hole is provided with internal threads, and the guide rod is inserted into the central hole through the internal threads and the external threads which are in threaded connection.

4. The integrated gas circuit detection mechanism according to claim 3, wherein the plugging plate is provided with a rotary groove on a plate surface far away from the guide rod.

5. The integrated gas circuit detection mechanism according to claim 2, wherein the boss is an annular boss, the pressure release valve further comprises a sealing ring sleeved on the plugging plate, and the plugging plate plugs the inner hole through the sealing ring abutting against the annular boss.

6. The integrated gas circuit detection mechanism according to claim 2, wherein a sliding groove is formed in the inner wall of the inner hole, a sliding block is arranged on the supporting seat, and the supporting seat is slidably mounted in the inner hole through the sliding block which is slidably inserted into the sliding groove.

7. The integrated gas circuit detection mechanism according to claim 1, wherein the seat body is further provided with a suction hole communicated with the internal space, and the integrated gas circuit detection mechanism further comprises a one-way valve installed in the suction hole, and the one-way valve is used for controlling air in an external environment to flow into the internal space in one direction through the suction hole.

8. The integrated gas circuit detection mechanism according to claim 7, wherein the one-way valve comprises a fixed disk and a valve flap, the fixed disk is provided with a guide hole and a plurality of side through holes arranged at intervals around the guide hole, and the valve flap comprises a valve disk and a guide rod connected with the valve disk; the fixed disc is arranged in the air suction hole, and one end of the guide rod, which is far away from the valve disc, is slidably inserted into the guide hole; the valve disc is positioned on one side of the air inlet hole facing the inner space, and the valve disc is used for blocking or conducting the side through hole.

9. The integrated gas circuit detection mechanism of claim 8, wherein the one-way valve further comprises a fixed plate mounted on the housing, the fixed plate configured to compress the fixed plate into the suction hole.

10. A ventilator comprising an integrated pneumatic circuit detection mechanism as claimed in any one of claims 1 to 9.