TW202423494A - Breathing pressure regulating device - Google Patents

Abstract

The invention relates to a respiratory pressure regulating device, which comprises a pressure regulating valve, a positive end expiratory pressure valve, a branch pipe and a respiratory airflow pressure gauge, the pressure regulating valve is arranged at a first branch part of the branch pipe, the positive end expiratory pressure valve is arranged at a second branch part of the branch pipe, the branch pipe is provided with a third branch part, a respiratory airflow is input into the branch pipe through the third branch part, and the respiratory airflow pressure gauge is connected to a fourth branch part of the branch pipe; wherein the respiratory airflow pressure gauge is used for indicating the airflow pressure in the branch pipe, and the pressure regulating valve is used for regulating the pressure relief range, so that the respiratory airflow in the branch pipe reaches the required airflow pressure; when the pressure regulating valve is used for pressure relief, the respiratory airflow in the branch pipe is discharged through a first vent hole of the pressure regulating valve.

Description

Respiratory pressure regulating device

The present invention relates to a respiratory pressure regulating device, in particular to a respiratory pressure regulating device having a peak inspiratory pressure (PIP) function and a positive end expiration pressure (PEEP) function. The respiratory pressure regulating device is provided with a peak inspiratory pressure valve (PIP valve), a positive end expiration pressure valve (PEEP valve) and a respiratory airflow pressure gauge. The respiratory pressure regulating device can input a respiratory gas and output a respiratory airflow. The respiratory airflow pressure gauge is used to indicate the pressure change of the respiratory airflow.

Known technology (I) The occlusion valve (Occlusion valve 70) disclosed in the specification of US Patent No. US9999742B2 is used to provide repeated resuscitation breathing to infant patients. Because it has a positive end expiration pressure (PEEP) period, the occlusion valve (70) is a positive end expiration pressure valve (PEEP valve). The resuscitation breathing delivered by using the occlusion valve (70) can be at any suitable rate, for example: about 40-60 breaths per minute. When performing the above-mentioned resuscitation breathing, medical staff need to focus on the operation of the occlusion valve (70) and the status of the infant patient, so the occlusion valve (70) is set at a position close to the infant patient.

Known technology (II) as disclosed in the specification of the aforementioned U.S. patent, the inspiratory pressure device (26) is an infant resuscitator, the inspiratory pressure device (26) can receive breathing gas from a breathing gas source (Source of breathing gas 20), and the inspiratory pressure device (26) can output a breathing gas flow at a peak inspiratory pressure (Peak inspiratory pressure; PIP), the inspiratory pressure device (26) further includes a pressure relief valve (Pressure relief valve 30), the pressure relief valve (30) is adjustable, so that the pressure of the system (system 10) can be adjusted.

The known technique (1) and the known technique (2) are not easy to operate simultaneously because there is a distance between the shut-off valve (70) and the inspiratory pressure device (26). This may cause the medical staff to be unable to focus on the operation of the shut-off valve (70) and the operation of the inspiratory pressure device (26) at the same time. For example, when performing the aforementioned resuscitation breathing, the respiratory airflow should be at the required peak inspiratory pressure (PIP). The medical staff needs to turn around to observe the pressure value displayed by the inspiratory pressure device (26) and repeatedly operate the decompression valve (30) to adjust the respiratory airflow to the required peak inspiratory pressure (PIP). This will affect the medical staff's inability to focus on the operation of the shut-off valve (70) and the condition of the infant patient. Therefore, there is still a need for improvement in learning technology (I) and learning technology (II).

The purpose of the present invention is to provide a respiratory pressure regulating device, the regulating device comprising a pressure regulating valve, a positive end-expiratory pressure valve, a branch pipe and a respiratory airflow pressure gauge; the pressure regulating valve is arranged at a first branching portion of the branch pipe, the positive end-expiratory pressure valve is arranged at a second branching portion of the branch pipe, the branch pipe has a third branching portion, and the branch pipe inputs a respiratory airflow pressure gauge through the third branching portion. airflow, the breathing airflow pressure gauge is connected to a fourth branch portion of the branch pipe; wherein the breathing airflow pressure gauge is used to indicate the airflow pressure in the branch pipe, and the pressure regulating valve is used to adjust the pressure relief range so that the breathing airflow in the branch pipe reaches the required airflow pressure; when the pressure regulating valve is relieving pressure, the breathing airflow in the branch pipe is discharged through a first vent of the pressure regulating valve.

The benefit (1) of the present invention is that medical staff can focus on the operation of the respiratory pressure regulating device and the condition of the infant patient. When the medical staff adjusts the pressure relief range of the pressure regulating valve, the medical staff can directly observe the airflow pressure in the branch pipe through the respiratory airflow pressure gauge, thereby improving the disadvantage of the knowledge technology that requires frequent turning to observe the pressure value.

The second benefit of the present invention is that the respiratory pressure regulating device has the advantage of being easy to carry and move. The respiratory pressure regulating device can perform resuscitation breathing therapy on infant patients as long as it is connected to an air source, thus improving the disadvantage of the knowledge technology that is difficult to carry and move.

The third benefit of the present invention is that the respiratory pressure regulating device has the advantages of being easy to manufacture, having a simplified structure and being relatively low-cost, and can replace conventional technology to meet the urgent needs during epidemics.

1: Pressure regulating valve

10: First rotary cover

11: First vent hole

12: Top surface of the first rotating cover

120: Inner surface of the first rotating cover

13: First internal thread

15: Flange of the first rotating cover

150: Inner wall of the first rotating cover

16: First inner tube

17: Auxiliary pressure relief hole

2: PEEP valve

20: Second rotating cover

21: Second vent hole

23: Second internal thread

24: Second inner tube

25: Gap

30: Branch pipe

30a: First branch pipe

30b: Second branch pipe

301: First connection end

302: Second connection terminal

303: Third connection terminal

304: Ring rib

31: First branch

310: Outer wall of the first branching section

311: Pressure relief section

312: The convex ring of the first branching part

32: Second branch

320: Outer wall of the second branching section

33: The third branch

34: Fourth branch

35: Fifth Branch

36: Cone

37: Third vent hole

38: First external thread

39: Second external thread

40: Respiratory airflow pressure gauge

43:Connecting pipe

50: Pressure relief valve body

60:Reset spring

61: One end of the spring

70: One-way valve

71: Air intake

80: pivot bushing

81:Track

82: Limiting surface

83: Limiting part

84: Coaxial inner tube

85: Annular gap

86: Breathing mask

87:Connection terminal

88: End of pivot sleeve

90: Breathing tube

[Figure 1] is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[Figure 2] is a partial three-dimensional exploded schematic diagram of a preferred embodiment of the present invention.

[Figure 3] is another partial three-dimensional exploded schematic diagram of a preferred embodiment of the present invention.

[Figure 4] is a schematic diagram of the application of a preferred embodiment of the present invention.

[Figure 5] is the A-A cross-sectional view of Figure 1.

[Figure 6] is a schematic diagram of the operation of the one-way valve of the preferred embodiment of the present invention.

[Figure 7] is the B-B cross-sectional view of Figure 1.

[Figure 8] is a three-dimensional diagram of the pivot sleeve of a preferred embodiment of the present invention.

[Figure 9] is another three-dimensional diagram of the pivot sleeve of the preferred embodiment of the present invention.

[Figure 10] is a three-dimensional cross-sectional view of the pivot sleeve of a preferred embodiment of the present invention.

[Figure 11] is another three-dimensional cross-sectional view of the pivot sleeve of the preferred embodiment of the present invention.

In order to further understand the features, technical means, and specific functions and purposes of the present invention, more specific embodiments are listed below, followed by detailed descriptions with diagrams and numbers.

Referring to FIGS. 1 to 7 , in a preferred embodiment, the pressure regulating device of the present invention comprises a pressure regulating valve (PIP valve) 1, a positive end-expiratory pressure valve (PEEP valve) 2, a branch pipe 30 and a respiratory airflow pressure gauge (Manometer) 40; the pressure regulating valve 1 has a first vent 11, and the first vent 11 is a pressure relief hole; the positive end-expiratory pressure valve 2 has a second vent 21, and the second vent 21 is an operation hole; the branch pipe 30 has a first branch portion 31, a second branch portion 32, a third branch portion 33 and a fourth branch portion 34, and the first branch portion 31 has a first branch portion 31, a second branch portion 32, a third branch portion 33 and a fourth branch portion 34. The branch pipe 30 has a pressure relief portion 311 on the side, and a respiratory airflow is input into the branch pipe 30 through the third branch portion 33; the respiratory airflow pressure gauge 40 is connected to the fourth branch portion 34 (for example: a connecting pipe 43 of the respiratory airflow pressure gauge 40 is fixed to the fourth branch portion 34), so that the respiratory airflow pressure gauge 40 is fluidically connected to the branch pipe 30, and the respiratory airflow pressure gauge 40 is used to indicate the pressure change of the respiratory airflow; wherein the pressure regulating valve 1 has a first rotating cover 10, the first rotating cover 10 is screwed into the first branch portion 31, a pressure relief valve body 50 of the pressure regulating valve 1 is arranged in the first branch portion 31, and a return spring 60 is arranged in the first rotating cover 10, and the return spring 60 presses against the pressure relief valve body 50 to close the pressure relief portion 311; when the pressure regulating valve 1 is released, the pressure relief valve body 50 leaves the pressure relief portion 311, and the respiratory air in the branch pipe 30 is discharged through the first vent hole 11; wherein the respiratory air The positive end-expiratory pressure valve 2 has a second rotating cover 20, which is screwed into the second branching portion 32. The second vent hole 21 is used to close the positive end-expiratory pressure valve 2. The respiratory airflow pressure gauge 40 indicates the airflow pressure in the branch pipe 30. The force of the return spring 60 is changed by the rotation degree of the first rotating cover 10 to adjust the pressure relief range of the pressure regulating valve 1 so that the respiratory airflow in the branch pipe 30 reaches the required airflow pressure.

Please refer to Figures 1 to 5 for an example of the anti-falling method of the pressure regulating valve 1: an inner wall 150 of the first rotating cover 10 has a flange 15, and an outer wall 310 of the first diverging portion 31 has a convex ring 312. The convex ring 312 is located inside the flange 15 to limit the movement range of the first rotating cover 10; when the flange 15 abuts against the convex ring 312, the first rotating cover 10 reaches the maximum rotation degree, and the pressure regulating valve 1 prevents the first rotating cover 10 from escaping from the first diverging portion 31 by the convex ring 312.

Please refer to Figures 1 to 6 for an example of the pressure relief method of the pressure regulating valve 1: an inner side surface 120 of the first rotating cover 10 has a first inner tube 16, the first vent hole 11 is fluidly connected to the first inner tube 16, one end 61 of the spring 60 is sleeved on the first inner tube 16, when the pressure regulating valve 1 is relieved, the breathing air in the branch pipe 30 is discharged through the first inner tube 16 and the first vent hole 11; wherein a top surface 12 of the first rotating cover 10 further has a plurality of auxiliary pressure relief holes 17, when the pressure regulating valve 1 is relieved, the breathing air in the branch pipe 30 can also be discharged through the plurality of auxiliary pressure relief holes 17.

Please refer to FIG. 5 and FIG. 6 for an example of how external gas enters the branch pipe 30: the branch pipe 30 further has a fifth branch portion 35, and the fifth branch portion 35 is provided with a one-way valve 70. The one-way valve 70 closes the fifth branch portion 35 by the air flow pressure in the branch pipe 30. When the air flow pressure in the branch pipe 30 is greater than the pressure of the external gas, the one-way valve 70 is closed. When the pressure of the external gas is greater than the pressure of the gas in the branch pipe 30, the one-way valve 70 is in an open state (as shown in FIG. 6 ), and the external gas enters the branch pipe 30 through an air inlet 71 of the one-way valve 70 to supplement the breathing gas.

Please refer to Figures 1 to 7 for an example of the adjustment method of the PEEP valve 2: the second branching portion 32 has a conical portion 36 on the inner side, the second rotating cover 20 has a second inner tube 24 on the inner side, the second inner tube 24 is fluidically connected to the second vent 21, the conical portion 36 and the second inner tube 24 have a gap 25, the size of the gap 25 is changed by the rotation degree of the second rotating cover 20, so that the PEEP valve 2 is an adjustable valve body (as shown in Figure 7).

Please refer to Figures 1 to 7 for an example of the fluid connection between the PEEP valve 2 and the branch pipe 30: the second branch portion 32 of the branch pipe 30 has at least one third vent hole 37 on the inner side, and the second branch portion 32 is fluidly connected to the branch pipe 30 via the third vent hole 37, so that the PEEP valve 2 is fluidly connected to the second branch portion 32 of the branch pipe 30 via the third vent hole 37 (as shown in Figure 7).

Please refer to Figures 1 to 5 for an example of the structure of the branch pipe 30: the branch pipe 30 may be an integrally formed structure, or the branch pipe 30 may be composed of a first branch pipe 30a and a second branch pipe 30b, a first connection end 301 of the first branch pipe 30a is fluidically connected to a second connection end 302 of the second branch pipe 30b, the first branch portion 31 and the fourth branch portion 34 are formed on the first branch pipe 30a, and the second branch portion 32 and the third branch portion 33 are formed on the second branch pipe 30b.

Please refer to FIG. 1, FIG. 3, FIG. 5, FIG. 8 to FIG. 11, which illustrate the anti-torsion method of the branch pipe 30: the branch pipe 30 has a third connecting end 303, the third connecting end 303 has an annular rib 304, and the third connecting end 303 is further provided with a pivot sleeve 80, and the pivot sleeve 80 has a track 81, and the track 81 is formed by a limiting surface 82 and a plurality of limiting portions 83. The annular rib 304 is located on the track 81, so that the pivot sleeve 80 is axially pivoted to the third connection end 303. When the pressure regulating device of the present invention is subjected to a torque, the branch pipe 30 and the pivot sleeve 80 can rotate relative to each other to reduce the torque borne by the branch pipe 30.

Please refer to Figures 5 to 11 for an example of how the pivot sleeve 80 maintains airtightness: the pivot sleeve 80 further has a coaxial inner tube 84, which is integrally formed with the pivot sleeve 80, and an annular gap 85 is formed between the pivot sleeve 80 and the coaxial inner tube 84, and the third connecting end 303 extends into the annular gap 85 to increase the airtightness; when the branch pipe 30 and the pivot sleeve 80 rotate relative to each other, the coaxial inner tube 84 can maintain the airtightness between the branch pipe 30 and the pivot sleeve 80.

Please refer to Figures 1 to 7 for an example of the connection between the branch pipe 30 and the gas source: the third branch portion 33 is fluidly connected to a breathing tube 90, the breathing tube 90 is fluidly connected to an air source, and the air source inputs the breathing airflow into the third branch portion 33 via the breathing tube 90 (as shown in Figure 4); the pivot sleeve 80 is further connected to a breathing mask 86, a connection end 87 of the breathing mask 86 is fixed to an end 88 of the pivot sleeve 80, and the connection end 87 is fluidly connected to the pivot sleeve 80 to output the breathing airflow (as shown in Figures 5 to 7).

Please refer to Figures 1 to 7 for an example of the assembly of the pressure regulating valve 1: an inner wall 150 of the first rotating cover 10 has a first inner thread 13, an outer wall 310 of the first branching portion 31 has a first outer thread 38, and the first inner thread 13 is screwed into the first outer thread 38; when the first rotating cover 10 is rotated, the axial position of the first rotating cover 10 relative to the first branching portion 31 is changed, and the force of the return spring 60 is adjusted, so that the pressure regulating valve 1 reaches the required pressure relief range, and the breathing airflow in the branch pipe 30 reaches the required airflow pressure.

Please refer to Figures 1 to 7 for an example of the assembly of the PEEP valve 2: the inner side of the second rotating cover 20 has a second inner thread 23, the outer side of the second branch portion 32 has a second outer thread 39, and the second inner thread 23 is screwed into the second outer thread 39; when the second rotating cover 20 is rotated, the axial position of the second rotating cover 20 relative to the second branch portion 32 is changed, and the gap 25 formed by the conical portion 36 and the second inner tube 24 is adjusted, so that the PEEP valve 2 reaches the required gap 25.

1: Pressure regulating valve

10: First rotary cover

11: First vent hole

17: Auxiliary pressure relief hole

2: PEEP valve

20: Second rotating cover

21: Second vent hole

30: Branch pipe

31: First branch

32: Second branch

33: The third branch

35: Fifth Branch

40: Respiratory airflow pressure gauge

70: One-way valve

71: Air intake

80: pivot bushing

86: Breathing mask

Claims (10)

A respiratory pressure regulating device, the regulating device comprising: A pressure regulating valve (1), the pressure regulating valve (1) having a first vent hole (11), the first vent hole (11) being a pressure relief hole; A positive end-expiratory pressure valve (2), the positive end-expiratory pressure valve (2) having a second vent hole (21), the second vent hole (21) being an operating hole; A branch pipe (30), the branch pipe (30) having a first branch portion (31), a second branch portion (32), a third branch portion (33) and a fourth branch portion (34), the first branch portion (31) having a pressure relief portion (311) on the inner side, the branch pipe (30) inputting a respiratory airflow through the third branch portion (33); A respiratory airflow pressure gauge (40), the respiratory airflow pressure gauge (40) is connected to the fourth branching portion (34) and fluidly connected to the branching pipe (30), and the respiratory airflow pressure gauge (40) is used to indicate the pressure change of the respiratory airflow; The pressure regulating valve (1) has a first rotating cover (10), which is screwed into the first branching portion (31). A pressure relief valve body (50) of the pressure regulating valve (1) is arranged in the first branching portion (31). A return spring (60) is arranged in the first rotating cover (10), and the return spring (60) presses against the pressure relief valve body (50) to close the pressure relief portion (311). When the pressure regulating valve (1) releases pressure, the pressure relief valve body (50) leaves the pressure relief portion (311), and the respiratory air in the branch pipe (30) is discharged through the first vent hole (11); The positive end-expiratory pressure valve (2) has a second rotating cover (20) which is screwed into the second branching portion (32). The second vent hole (21) is used to close the positive end-expiratory pressure valve (2). The respiratory airflow pressure gauge (40) indicates the airflow pressure in the branch pipe (30). The force of the return spring (60) is changed by the rotation degree of the first rotating cover (10) to adjust the pressure relief range of the pressure regulating valve (1) so that the respiratory airflow in the branch pipe (30) reaches the required airflow pressure. A respiratory pressure regulating device as described in claim 1, wherein an inner wall (150) of the first rotating cover (10) has a flange (15), and an outer wall (310) of the first diverging portion (31) has a convex ring (312), and the convex ring (312) is located inside the flange (15) to limit the movement range of the first rotating cover (10); when the flange (15) abuts against the convex ring (312), the convex ring (312) prevents the first rotating cover (10) from separating from the first diverging portion (31). As described in claim 1, the respiratory pressure regulating device, wherein an inner side surface (120) of the first rotating cover (10) has a first inner tube (16), the first vent hole (11) is fluidly connected to the first inner tube (16), one end (61) of the spring (60) is sleeved on the first inner tube (16), and a top surface (12) of the first rotating cover (10) further has a plurality of auxiliary pressure relief holes (17). As described in claim 1, the breathing pressure regulating device, wherein the branch pipe (30) further has a fifth branch portion (35), and the fifth branch portion (35) is provided with a one-way valve (70) to close the fifth branch portion (35); when the one-way valve (70) is closed, the breathing airflow cannot flow out of the one-way valve (70), and the airflow pressure in the branch pipe (30) is maintained; when the one-way valve (70) is opened, external gas enters the branch pipe (30) through the one-way valve (70). A respiratory pressure regulating device as described in claim 1, wherein the second branching portion (32) has a conical portion (36) on the inner side, the second rotating cover (20) has a second inner tube (24) on the inner side, the second inner tube (24) is fluidically connected to the second vent (21), the conical portion (36) and the second inner tube (24) have a gap (25), and the size of the gap (25) is changed by the degree of rotation of the second rotating cover (20). As described in claim 5, the respiratory pressure regulating device has at least one third ventilation hole (37) on the inner side of the second branching portion (32), and the second branching portion (32) is fluidically connected to the branch pipe (30) via the third ventilation hole (37). As described in claim 1, the respiratory pressure regulating device, wherein the branch pipe (30) is composed of a first branch pipe (30a) and a second branch pipe (30b), a first connecting end (301) of the first branch pipe (30a) is fluidly connected to a second connecting end (302) of the second branch pipe (30b), the first branch portion (31) and the fourth branch portion (34) are formed on the first branch pipe (30a), and the second branch portion (32) and the third branch portion (33) are formed on the second branch pipe (30b). As described in claim 1, the branch pipe (30) has a third connection end (303), the third connection end (303) has an annular rib (304), and the third connection end (303) is further provided with a pivot sleeve (80), the pivot sleeve (80) has a track (81), and the track (81) is formed by a limiting surface (82) and a plurality of limiting parts (83), and the annular rib (304) is located on the track (81), so that the pivot sleeve (80) is axially connected to the third connection end (303). As described in claim 8, the respiratory pressure regulating device, wherein the pivot sleeve (80) further has a coaxial inner tube (84), the coaxial inner tube (84) is integrally formed with the pivot sleeve (80), an annular gap (85) is formed between the pivot sleeve (80) and the coaxial inner tube (84), and the third connecting end (303) extends into the annular gap (85) to increase the airtightness. As described in claim 8, the breathing pressure regulating device, wherein the fluid of the third branch portion (33) is connected to a breathing tube (90), and the fluid of the breathing tube (90) is connected to an air source, and the air source inputs the breathing airflow into the third branch portion (33) through the breathing tube (90); the pivot sleeve (80) is further connected to a breathing mask (86), and a connecting end (87) of the breathing mask (86) is fixed to an end (88) of the pivot sleeve (80), and the fluid of the connecting end (87) is connected to the pivot sleeve (80) to output the breathing airflow.

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