TWI681788B - Respirator - Google Patents

Abstract

A respirator includes a pressure relief device, a pressure measurement device, a gas delivery tube, and a gas output control device. The gas delivery pipe fluid flows through the pressure relief device and the pressure measurement device. The gas output control device includes a multi-pass tube and a control module. The multi-pass tube includes a first connection portion, a second connection portion, and a third connection portion. The third connection portion is connected to the pressure measurement device, and the control module The group includes a casing, a blocking piece and a control unit. The casing is connected to the second connecting part and defines an exhaust flow channel. The blocking piece is arranged in the casing to block or open the exhaust flow channel. The unit is arranged in the casing and is electrically connected to the blocking member for controlling its operation, so as to block or open the exhaust flow channel. By this, the blocking or opening of the exhaust flow channel can be automatically controlled.

Description

Respirator

The invention relates to a respirator, in particular to a respirator for resuscitation.

About 10% of babies born every year in the world need breathing assistance after birth, and about 1% of babies need further respiratory first aid, among which premature babies are the main first-aid objects.

Positive-Pressure Ventilation (PPV) is a very critical first-aid period in the first aid process for infants. At present, the self-inflating wake-up ball that can provide positive pressure function is the most commonly used manual air flow device. However, medical care personnel can usually only control the automatic inflation type wake-up ball to provide positive end-expiratory pressure (PEEP) by manual pressing, so the operation is more inconvenient.

Therefore, an object of the present invention is to provide a respirator capable of overcoming at least one disadvantage of the prior art.

Therefore, the respirator of the present invention includes a pressure relief device, a pressure measurement device, a gas delivery tube, and a gas output control device.

The gas delivery pipe fluid flows through the pressure relief device and the pressure measurement device. The gas output control device includes a multi-way tube and a control module. The multi-way tube includes a first connection portion, a second connection portion, and a third connection portion. The third connection portion is connected to the pressure measurement device and fluid The control module includes a casing, a blocking piece and a control unit. The casing is connected to the second connecting portion and defines an exhaust flow path in fluid communication with the multi-way pipe. The blocking piece is provided in the casing In order to block or open the exhaust flow channel, the control unit is provided in the housing and electrically connected to the blocking member for controlling its operation, so that it blocks or opens the exhaust flow channel.

In the respirator of the present invention, the blocking member is a linear motor and has a shaft, the control unit is used to control the shaft of the blocking member at a blocking position blocking the exhaust flow path, and an opening The opening positions of the exhaust flow channel move linearly back and forth, and the control unit includes a switch that exposes the housing for pressing.

In the respirator of the present invention, the casing includes a sleeve and an inner tube, the sleeve includes a peripheral wall connected to the second connecting portion, and an end wall formed at the top end of the peripheral wall, the peripheral wall is formed with one side The vent hole, the blocking member and the control unit are provided on the end wall, and the switch is exposed outside the end wall, the inner tube is formed inside the peripheral wall and spaced from the end wall, the inner tube is formed with a An inner air hole in fluid communication with a multi-way tube, the inner tube, the peripheral wall and the end wall jointly define an air chamber communicating between the side exhaust hole and the inner air hole, the side exhaust hole, the air chamber and The inner air holes together constitute the exhaust gas flow path. When the shaft is in the blocking position, the shaft closes the inner air holes, and when the shaft is in the open position, the shaft moves away from the inner air holes.

In the respirator of the present invention, the multi-way tube includes a first tube body and a second tube body connected to one side of the first tube body, the first tube body has the first connection portion and the second connection And define a first axis, the second tube body has the third connecting portion and defines a second axis, the second connecting portion is inclined toward the second tube body, the first axis and the second axis intersect And there is an acute angle between the two.

In the respirator of the present invention, the third connecting portion is pivotally connected to the pressure measuring device and can rotate 360 degrees around the second axis.

In the respirator of the present invention, the multi-way tube further includes a third tube connected to the other side of the first tube, and the gas output control device further includes a one-way valve disposed on the third tube. The one-way valve can circulate in one direction toward the first pipe body under the action of external pressure, the third pipe body defines a third axis, the one-way valve is inclined toward the second connection portion, the third axis and the The first axis intersects and the two form an acute angle.

In the respirator of the present invention, the third connecting portion is pivotally connected to the pressure measuring device in a 360-degree rotation.

In the respirator of the present invention, the multi-way tube further includes a fourth connecting portion between the first connecting portion and the second connecting portion and opposite to the third connecting portion, the gas output control device further includes a setting The one-way valve in the fourth connection portion, the one-way valve can unidirectionally circulate into the multi-way pipe under the action of external pressure.

In the respirator of the present invention, the pressure measuring device includes an air pipe connected to the third connecting portion, an indicator, and a compression spring. The air pipe is transparent and includes a scale unit. The air pipe is formed with an output A gas hole, the indicator is inserted into the gas pipe and can be driven by the gas to move in the gas pipe to correspondingly indicate a pressure value in the scale unit, the compression spring is arranged between the gas pipe and the indicator Is used to apply elastic force to the indicator toward the pressure relief device. The pressure relief device includes a gas pipe, a first pressure relief valve, and a second pressure relief valve. The discharge pressure of the first pressure relief valve and The discharge pressure of the second pressure relief valve is different. The first pressure relief valve and the second pressure relief valve are each detachably assembled to the gas pipe, and one of them can be selectively assembled to the gas pipe.

The respirator of the present invention includes a pressure relief device, a pressure measurement device, and a gas output control device.

The pressure measurement device is in fluid communication with the pressure relief device. The gas output control device includes a multi-way tube, and a control module, one end of the multi-way tube is connected to the pressure measurement device and is in fluid communication with the control module, the control module includes a housing, a blocking member, and a control Unit, the housing is connected to the other end of the multi-way pipe and defines an exhaust flow channel in fluid communication with the multi-way tube, the blocking member is provided in the housing to block or open the exhaust flow channel, The control unit is disposed in the casing and is electrically connected to the blocking member to control its operation, so that the blocking member blocks or opens the exhaust flow channel.

The effect of the present invention is that, through the design of the pressure relief device, it can provide stable peak suction pressure. Through the design of the gas output control device, it can provide positive end-expiratory pressure to facilitate the expansion and expansion of the alveoli and avoid the collapse and collapse of the alveoli.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to FIG. 1, it is an embodiment of the respirator 100 of the present invention. The respirator 100 includes a pressure relief device 1, a gas delivery tube 2, a pressure measurement device 3, and a gas output control device 4.

Referring to FIGS. 2, 3 and 4, the pressure relief device 1 includes a gas pipe 11, a joint 12, a first pressure relief valve 13, a second pressure relief valve 13', and a third pressure relief valve 13" The gas pipe 11 includes a main pipe body 111 and a pressure relief pipe body 112 formed at the top of the main pipe body 111. The main pipe body 111 has a first end 113 and a second end opposite to the first end 113 114. The connector 12 is clipped to the first end 113 by a snapping method, and the connector 12 is used to connect to a gas supply source (not shown), and the gas supply source is used to supply a gas such as oxygen. Gas will be input into the gas pipe 11 through the first end 113 and output through the second end 114. The pressure relief tube 112 is interposed between the first end 113 and the second end 114 of the main body 111 and forms an outlet The air hole 115 and the outer peripheral surface of the pressure relief tube body 112 are recessed radially inward to form a circular annular groove 116.

The structures of the first pressure relief valve 13, the second pressure relief valve 13' and the third pressure relief valve 13" are the same, but the gas discharge pressure is different. The first pressure relief valve 13, the second pressure relief valve 13' and the third pressure relief valve The pressure valves 13" each include a valve cover 131, a valve member 132, and a compression spring 133. The valve cover 131 is formed with a guide hole 134 at the top end, and two vent holes 135 on the opposite side. The valve cover 131 has an annular snap ring 136 adjacent to the bottom end and detachably snapped into the annular snap groove 116. The valve member 132 has a disk portion 137 and a rod portion 138 protruding from the top of the disk portion 137. The disc portion 137 is used to close the top of the vent 115 to block the vent 115. The rod portion 138 is inserted into the guide hole 134 so as to be movable up and down. The compression spring 133 is sleeved on the rod portion 138 and the upper and lower ends abut the valve cover 131 and the disk portion 137, respectively, to apply downward elastic force to the disk portion 137 to position the disk portion 137 at a position closing the air outlet 115.

In this embodiment, the compression springs 133 of the first pressure relief valve 13, the second pressure relief valve 13' and the third pressure relief valve 13" have different elastic coefficients, so the gas discharge pressure is different. Among them, the first pressure relief valve 13 has the largest spring force of the compression spring 133, and the gas discharge pressure of the first pressure relief valve 13 is, for example, 35 cmH2O. The spring force of the compression spring 133 of the second pressure relief valve 13' is second, and the gas discharge pressure of the second pressure relief valve 13' For example, it is 20cmH2O. The compression spring 133 of the third pressure relief valve 13" has the smallest spring force, and the gas discharge pressure of the third pressure relief valve 13" is, for example, 10cmH2O. Medical care personnel can selectively set the first pressure relief valve according to the use requirements. 13. One of the second pressure relief valve 13' and the third pressure relief valve 13" is assembled in the pressure relief tube body 112. For example, when the first pressure relief valve 13 is to be assembled in the pressure relief tube body 112, the valve cover 131 is moved downward toward the pressure relief tube body 112, and the assembly is completed when the annular snap ring 136 is snapped into the annular snap groove 116 action. To detach the first pressure relief valve 13 from the pressure relief tube body 112, apply force to pull the valve cover 131 upward away from the pressure relief tube body 112, and the disassembly is completed when the annular snap ring 136 is separated from the annular snap groove 116 action. The foregoing assembly and disassembly methods are simple and convenient, and can facilitate medical care personnel to quickly disassemble and replace the pressure relief valve.

When the gas pressure in the respirator 100 is greater than the gas discharge pressure set by, for example, the first pressure relief valve 13, the gas will push the disk portion 137 of the valve member 132 upward to move it away from the closure shown in FIG. 4 In the position of the air hole 115, when the disk portion 137 moves upward, it compresses the compression spring 133 to deform and accumulate the return elastic force, whereby the gas can be discharged to the outside through the air discharge hole 135. When the gas pressure in the respirator 100 decreases and is less than the gas discharge pressure set by the first pressure relief valve 13, the return spring force accumulated by the compression spring 133 drives the disc portion 137 to move down to reset and close the air outlet 115 to stop the discharge of gas . By designing the pressure relief device 1, the respirator 100 can provide stable peak inspiratory pressure (PIP).

1 and 4, the gas delivery pipe 2 includes a first sleeve 21 and a second sleeve 22 opposite to the first sleeve 21. The first sleeve 21 is sleeved on the second end 114 of the gas pipe 11. The gas delivery tube 2 is used to deliver the gas output from the second end 114 of the gas delivery tube 11 toward the second sleeve 22.

Referring to FIGS. 5, 6 and 7, the pressure measuring device 3 includes a gas pipe 31, an indicator 33, and a compression spring 34. The gas pipe 31 includes a transparent tube 311 and a cover 312. The tube body 311 has an outer tube portion 313, an inner tube portion 314 formed at the top end of the inner wall of the outer tube portion 313, and a scale unit 315. One end of the outer tube portion 313 is used to sleeve the second sleeve 22 of the gas delivery tube 2. An air outlet 316 in fluid communication with the inner tube 314 is formed at the top of the outer tube 313. An annular snap ring 317 is protruded radially inward from the inner wall surface of the outer tube portion 313. The annular snap ring 317 is adjacent to the other end of the outer tube portion 313 away from the second sleeve 22. The inner tube portion 314 is formed with an air inlet hole 318 facing the second sleeve 22 and an opening 319 opposite to the air inlet hole 318. The cover 312 covers the inner tube portion 314 to close the opening 319. The scale unit 315 is marked at the top of the outer wall surface of the outer tube portion 313 and above the inner tube portion 314, and has two scale values 320, 321 spaced apart along the axial direction of the outer tube portion 313. The aforementioned scale values 320, 321 are used to Indicates the pressure of the patient when inhaling. The aforementioned scale values 320 and 321 are 20 cmH2O and 40 cmH2O, respectively.

The indicator 33 is in the shape of a sleeve, and is inserted into the inner tube portion 314 of the tube body 311 through the opening 319. An indicator portion 331, for example, red, is coated on the outer peripheral surface of the indicator 33. The compression spring 34 is inserted into the inner tube portion 314 of the tube body 311 through the opening 319, and both ends of the compression spring 34 abut the indicator 33 and the cover 312, respectively, to apply an elastic force to the indicator 33 in the direction of the pressure relief device 1 7, the indicator 33 is positioned on an end wall 322 formed with an air inlet hole 318 abutting against the inner tube portion 314 as shown in FIG. 7.

The gas output control device 4 includes a multi-way pipe 41, a control module 43, and a one-way valve 45. The multi-way tube 41 of this embodiment is a four-way tube and includes a first tube body 411, a second tube body 412 connected to the first tube body 411 side, and a first tube body 411 connected to the opposite The third tube 413 on the other side of the second tube 412. The first tube 411 is used by medical care personnel to hold, and has a first connecting portion 414 at the bottom and a second connecting portion 415 opposite to the first connecting portion 414. The first connecting portion 414 is used to connect a mask (not shown) or a tracheal tube 5 (see FIG. 12). The second connecting portion 415 has a surrounding wall 416 and an external thread 417 formed on the outer surface of the surrounding wall 416. The first tube 411 further has a frusto-conical 418 located in the surrounding wall 416, and a plurality of connecting arms 419 spaced apart from each other and connected between the bottom end of the frusto-conical 418 and the inner wall surface of the surrounding wall 416. The second tube 412 has a third connection portion 420 between the first connection portion 414 and the second connection portion 415. The third connection portion 420 is used to connect the outer tube portion 313 of the pressure measuring device 3 and be in fluid communication therewith . The third connecting portion 420 has a peripheral wall 421, a flange 422 extending radially outward from the outer surface of the peripheral wall 421 and adjacent to the first tube body 411, and an annular groove recessed radially inwardly from the outer surface of the peripheral wall 421 423. The peripheral wall 421 is rotatably penetrated and pivotally connected to the other end of the outer tube portion 313 away from the second sleeve 22. The flange 422 is used to block the end edge of the outer tube portion 313 to limit the depth of the peripheral wall 421 penetrating into the outer tube portion 313. The annular snap groove 423 is used for the annular snap ring 317 of the outer tube portion 313 to engage, so as to prevent the peripheral wall 421 from moving along the axial direction of the outer tube portion 313 and detaching from the outer tube portion 313. The third tube 413 has a fourth connecting portion 424 between the first connecting portion 414 and the second connecting portion 415 and opposite to the third connecting portion 420. The fourth connecting portion 424 is used for supplying the check valve 45 Worn bushes. The one-way valve 45 can flow in one direction toward the first pipe body 411 under the action of external pressure.

Referring to FIGS. 7, 8, 9 and 10, the first tube 411 defines a first axis L1, and the second connecting portion 415 of the first tube 411 is inclined toward the second tube 412. The second tube body 412 defines a second axis L2 that intersects the first axis L1. The second axis L2 and the first axis L1 form an acute angle A1. In this embodiment, the acute angle A1 is 85 degrees as an example. The human-engineering angle design of the acute angle A1 can provide the convenience and comfort of the medical care worker's hand when holding the first tube 411, so as to reduce the cumulative injury caused by the hand repeatedly holding it for a long time.

In addition, the third connecting portion 420 of the second tube body 412 is pivotally connected to the outer tube portion 313 of the pressure measuring device 3 by 360 degrees about the second axis L2, so that the gas output control device 4 can The first rotation direction R1 rotates relative to the pressure measurement device 3, or rotates relative to the pressure measurement device 3 in a second rotation direction R2 opposite to the first rotation direction R1. Thereby, when the medical care personnel hold the first tube body 411 with the left hand or the right hand, they can rotate the multi-way tube 41 relative to the pressure measuring device 3 and adjust it to an appropriate holding angle position to facilitate the medical care personnel The first tube 411 can be held by the left hand or the right hand according to its own habit. Furthermore, it is also possible to avoid the hand held by the first tube body 411 from covering the scale unit 315 of the tube body 311, so that the medical caregiver can clearly see the position of the scale unit 315 corresponding to the indicator portion 331 of the indicator 33.

5, 6 and 7, the control module 43 includes a housing 431, a blocking member 432, and a control unit 433. The housing 431 includes a sleeve 434 and an inner tube 435. The sleeve 434 includes a peripheral wall 436 and an end wall 437 formed at the top of the peripheral wall 436. The peripheral wall 436 has an internal thread 438 on the inner wall surface. The internal thread 438 is screwed to the external thread 417 of the second connecting portion 415. The peripheral wall 436 is formed with two side exhaust holes 439. The end wall 437 has a top wall portion 440 and a surrounding wall portion 441 recessed downward from the center of the top wall portion 440. The inner tube 435 includes a tube portion 442 and a ring portion 443. The tube portion 442 is located in the peripheral wall 436 and is sleeved on the frusto-conical cone 418 but does not contact the frusto-conical cone 418. The tube portion 442 is spaced from the surrounding wall portion 441 of the end wall 437 and forms an inner fluid communication with the first tube body 411孔孔444. The ring portion 443 is connected between the proximal end of the tube portion 442 and the peripheral wall 436. The inner tube 435, the peripheral wall 436 and the end wall 437 jointly define an air chamber 445 communicating between the side exhaust hole 439 and the inner air hole 444, the side exhaust hole 439, the air chamber 445 and the inner air hole 444 together constitute an exhaust flow Road 446.

The blocking member 432 is disposed in the surrounding wall portion 441 of the end wall 437 to block or open the exhaust gas flow path 446. Specifically, the blocking member 432 of this embodiment is a linear motor, which can be fixed in the surrounding wall portion 441 by, for example, gluing or clamping. The blocking member 432 has a shaft 447 at the bottom end that can move up and down, the shaft 447 can be moved away from the inner air hole 444 and located in the open position in the air chamber 445 (as shown in FIG. 7), and a closed inner air hole 444 moves between the blocking positions (as shown in Figure 11).

The control unit 433 includes a circuit board 448 and a switch 449. The circuit board 448 is disposed in the surrounding wall portion 441 of the end wall 437. The circuit board 448 is fixed on the top of the blocking member 432 and electrically connected to the blocking member 432. The switch 449 is disposed on the top surface of the circuit board 448 and exposes the top wall portion 440 of the housing 431 to facilitate medical care personnel to press through the fingers. In this embodiment, the circuit board 448 of the control unit 433 is set to switch the shaft 447 of the blocking member 432 multiple times between the blocking position and the opening position each time the switch 449 is pressed Move back and forth in a straight line. Specifically, the circuit board 448 of the control unit 433 is set to 12 times of opening and closing in 1 minute, that is, after the shaft 447 is in the open position for 5 seconds, the circuit board 448 of the control unit 433 controls the shaft 447 to move to In the blocking position, after the shaft 447 is in the blocking position for 5 seconds, the circuit board 448 of the control unit 433 controls the shaft 447 to move to the open position.

5, 7 and 11, when the medical caregiver wants to control the patient's inhalation and exhalation through the respirator 100, press the switch 449, the shaft 447 will be in the open position for 5 seconds, at this time, the gas exhaled by the patient will pass A tube 411 flows into the exhaust flow path 446 and is discharged to the outside through the side exhaust hole 439. The shaft 447 will move down in the downward direction D1 to the blocking position 5 seconds after the opening position. At this time, the pressure inside the multi-way tube 41 increases. When the patient inhales, the alveoli will expand and expand, and flow in through the gas delivery tube 2 A part of the gas in the tube body 311 will directly flow into the multi-way tube 41 through the outer tube portion 313 for the patient to suck, and the other part will flow into the inner tube portion 314 through the air inlet hole 318 and squeeze the indicator 33 to move. With this, the medical care personnel can observe the position of the indicator portion 331 of the indicator 33 corresponding to the scale unit 315 and know the magnitude of the measured pressure value. The shaft 447 will move up in the upward direction D2 to the open position after 5 seconds in the blocking position to repeat the patient's exhalation process. The circuit board 448 of the control unit 433 will control the shaft 447 of the blocking member 432 to automatically perform multiple linear reciprocating movements between the blocking position and the opening position until it reaches the set number of opening and closing times, and thus, it can provide Operational convenience of medical care personnel. Through the design of the gas output control device 4, positive end expiratory pressure (PEEP) can be provided to facilitate the expansion and expansion of the alveoli and avoid the collapse and collapse of the alveoli.

It should be noted that, when it is desired to adjust the pressure of the gas discharged through the exhaust flow path 446, the casing 431 is rotated to move up or down relative to the second connection portion 415 of the first tube body 411 to adjust the tube portion 442 The size of the inner air hole 444 is covered by the frusto-conical 418, so that the pressure of the gas discharged through the exhaust flow channel 446 can be adjusted.

7, 8 and 12, the third tube 413 defines a third axis L3, the check valve 45 is inclined toward the second connecting portion 415, the third axis L3 intersects the first axis L1 and the two are sandwiched Acute angle A2. The one-way valve 45 of this embodiment takes a duckbill valve as an example. It forms a socket 451 communicating with the outside, and two valve pieces 452 located at the inner end of the socket 451. The two valve pieces 452 can circulate unidirectionally in the direction of the first pipe body 411 under the external pressure from the insertion hole 451. By designing the acute angle A2 between the third axis L3 and the first axis L1, the socket 451 of the one-way valve 45 can be directed upward, whereby medical care personnel can clearly see the position of the socket 451, and A pipe 61 can be inserted into the insertion hole 451 conveniently and quickly.

When the first connecting portion 414 of the multi-way tube 41 is connected to the tracheal tube 5, the medical caregiver can insert the tube 61 into the one-way valve 45 through the insertion hole 451, and press the two valve pieces 452 through the tube 61 to press the two The valve piece 452 is expanded so that the bottom end of the tube 61 can penetrate into the tracheal tube 5. At this time, the medical caregiver can suck the sputum from the patient's lung through a needle 62 connected to the top of the tube 61.

Referring to FIG. 13, in another embodiment, a medical caregiver can deliver bronchodilator to the tube 61 through a supply 63 connected to the top of the tube 61 so that the bronchodilator can flow into the patient's lungs through the tracheal tube 5.

Referring to FIG. 14, the gas output control device 4 of this embodiment further includes an end cover 46. The end cap 46 includes a sleeve 461 and an inner tube 462. The sleeve 461 has a peripheral wall 463, and an end wall 464 formed at the top of the peripheral wall 463. The peripheral wall 463 has an internal thread 465 located on the inner wall surface. The internal thread 465 is for screwing to the external thread 417 of the second connecting portion 415. The inner tube 462 is recessed downward from the center of the end wall 464 and forms an exhaust flow passage 466.

Referring to FIGS. 11 and 14, when assembling the end cap 46 to the second connection portion 415 of the first tube 411, first rotate the housing 431 of the control module 43, when the internal thread 438 and the external thread 417 of the housing 431 When separated, the housing 431 can be detached from the second connecting portion 415. Next, the sleeve 461 of the end cap 46 is sleeved on the surrounding wall 416 of the second connection portion 415, and then, the sleeve 461 of the end cap 46 is rotated to screw the internal thread 465 to the external thread 417. When the end cap 46 moves downward to the position shown in FIG. 14, the assembly is completed. At this time, the inner tube 462 of the end cap 46 is sleeved on the frusto-conical cone 418 but does not contact the frusto-conical cone 418.

Referring to FIG. 14, when medical care personnel want to control the patient’s inhalation and exhalation through the respirator 100, they do not need to press the end wall 464 of the end cap 46 with their fingers, so that the exhaust flow path 466 communicates with the outside. The gas flows into the exhaust runner 466 through the first tube 411 and is discharged to the outside through the exhaust runner 466. After, for example, 5 seconds, the end wall 464 of the end cap 46 is pressed with a finger to close the exhaust flow channel 466. At this time, the pressure inside the multi-way tube 41 increases, and the patient expands and expands the alveoli when the patient inhales. The manual operation mode that continuously switches between closed exhaust flow passage 466 or open exhaust flow passage 466 through fingers can also provide the function of positive end-expiratory pressure.

In summary, the respirator 100 of this embodiment can provide stable peak inspiratory pressure (PIP) by the design of the pressure relief device 1. Through the design of the gas output control device 4, positive end expiratory pressure (PEEP) can be provided to facilitate the expansion and expansion of the alveoli and avoid the collapse and collapse of the alveoli. In addition, through the design of the control module 43, after the medical caregiver presses the switch 449 once, the circuit board 448 of the control unit 433 will control the shaft 447 of the blocking member 432 to automatically perform between the blocking position and the opening position The linear reciprocating movement for many times does not stop until the set number of opening and closing times is reached, thereby providing convenience in operation, so the purpose of the invention can indeed be achieved.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still classified as This invention covers the patent.

100‧‧‧Respirator 1‧‧‧pressure relief device 11‧‧‧Gas pipe 111‧‧‧ competent body 112‧‧‧Relief tube 113‧‧‧First end 114‧‧‧second end 115‧‧‧ vent 116‧‧‧Ring card slot 12‧‧‧Connector 13‧‧‧First relief valve 13’‧‧‧Second relief valve 13”‧‧‧The third relief valve 131‧‧‧Bonnet cover 132‧‧‧Valve 133‧‧‧Compression spring 134‧‧‧Guide hole 135‧‧‧ vent hole 136‧‧‧Ring snap ring 137‧‧‧ plate 138‧‧‧Pole 2‧‧‧gas delivery pipe 21‧‧‧First sleeve 22‧‧‧Second sleeve 3‧‧‧Pressure measuring device 31‧‧‧Gas pipe 311‧‧‧tube body 312‧‧‧cover 313‧‧‧External Management Department 314‧‧‧Inner Tube Department 315‧‧‧Scale unit 316‧‧‧ vent 317‧‧‧Ring snap ring 318‧‧‧Air inlet 319‧‧‧ opening 320‧‧‧Scale value 321‧‧‧Scale value 322‧‧‧End wall 33‧‧‧Instruction 331‧‧‧Instruction Department 34‧‧‧Compression spring 4‧‧‧gas output control device 41‧‧‧Multi-pass 411‧‧‧The first tube 412‧‧‧Second tube 413‧‧‧Third tube 414‧‧‧First connection 415‧‧‧Second connection 416‧‧‧ around the wall 417‧‧‧Male thread 418‧‧‧ truncated cone 419‧‧‧ connecting arm 420‧‧‧The third connection 421‧‧‧ Zhoubi 422‧‧‧Flange 423‧‧‧Ring card slot 424‧‧‧The fourth connection 43‧‧‧Control module 431‧‧‧Housing 432‧‧‧Block 433‧‧‧Control unit 434‧‧‧Sleeve 435‧‧‧Inner tube 436‧‧‧ Zhoubi 437‧‧‧End wall 438‧‧‧ female thread 439‧‧‧side vent 440‧‧‧Top wall section 441‧‧‧ Wall Department 442‧‧‧Administration 443‧‧‧ Department 444‧‧‧Inner stomata 445‧‧‧Air chamber 446‧‧‧Exhaust runner 447‧‧‧shaft 448‧‧‧ circuit board 449‧‧‧ switch 45‧‧‧Check valve 451‧‧‧jack 452‧‧‧Valve 46‧‧‧End cap 461‧‧‧Sleeve 462‧‧‧Inner tube 463‧‧‧ Zhoubi 464‧‧‧End wall 465‧‧‧ female thread 466‧‧‧Exhaust runner 5‧‧‧tracheal tube 61‧‧‧Pipe fittings 62‧‧‧ needle 63‧‧‧Supply A1‧‧‧Acute angle A2‧‧‧Acute angle D1‧‧‧Move down D2‧‧‧Move up R1‧‧‧ First rotation direction R2‧‧‧Second rotation direction

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: 1 is a perspective view of an embodiment of the respirator of the present invention, illustrating the assembly relationship between a pressure relief device, a gas delivery tube, a pressure measurement device, and a gas output control device; 2 is an exploded perspective view of the pressure relief device of the embodiment; 3 is an exploded perspective view of the pressure relief device of the embodiment; 4 is a cross-sectional view of the pressure relief device of the embodiment; 5 is a plan view of the pressure measurement device and the gas output control device of the embodiment; 6 is an exploded perspective view of the pressure measurement device and the gas output control device of the embodiment; 7 is a cross-sectional view of the pressure measuring device and the gas output control device of the embodiment, illustrating a shaft of a blocking member in an open position; 8 is a side view of the pressure measurement device and the gas output control device of the embodiment; 9 is an incomplete perspective view of the embodiment, illustrating that the gas output control device rotates relative to the pressure measuring device along a first rotation direction; 10 is an incomplete perspective view of the embodiment, illustrating that the gas output control device rotates relative to the pressure measuring device along a second rotation direction; 11 is an incomplete cross-sectional view of the gas output control device of the embodiment, illustrating that the shaft of the blocking member is in a blocking position; 12 is a cross-sectional view of the gas output control device of the embodiment, illustrating a check valve for a pipe fitting to pass through; 13 is a cross-sectional view of the gas output control device of the embodiment, illustrating that the one-way valve is provided with the pipe fitting, and the pipe fitting is connected to a supplier; and FIG. 14 is an incomplete cross-sectional view of the gas output control device of this embodiment, illustrating that one end cover is assembled to a second connection portion of a first tube body.

100‧‧‧Respirator

1‧‧‧pressure relief device

11‧‧‧Gas pipe

111‧‧‧ competent body

112‧‧‧Relief tube

12‧‧‧Connector

13‧‧‧First relief valve

2‧‧‧gas delivery pipe

21‧‧‧First sleeve

22‧‧‧Second sleeve

3‧‧‧Pressure measuring device

4‧‧‧gas output control device

414‧‧‧First connection

43‧‧‧Control module

45‧‧‧Check valve

Claims (10)

A respirator containing: A pressure relief device; A pressure measuring device; A gas delivery pipe through which fluid flows through the pressure relief device and the pressure measurement device; and A gas output control device, including a multi-way tube and a control module, the multi-way tube includes a first connection part, a second connection part opposite to the first connection part, and a first connection part A third connecting portion between the second portion and the second connecting portion, the third connecting portion is connected to the pressure measuring device and is in fluid communication with the pressure measuring device, the control module includes a housing, a blocking member, and a control unit , The housing is connected to the second connecting portion and defines an exhaust flow channel in fluid communication with the multi-way tube, the blocking member is provided in the housing to block or open the exhaust flow channel, the control The unit is disposed in the casing and electrically connected to the blocking member for controlling its operation, so as to block or open the exhaust flow channel. The respirator according to claim 1, wherein the blocking member is a linear motor and has a shaft, and the control unit controls the shaft of the blocking member to block the exhaust flow path The off position and an on position that opens the exhaust flow path move linearly back and forth. The control unit includes a switch that exposes the housing for pressing. The respirator according to claim 2, wherein the housing includes a sleeve and an inner tube, the sleeve includes a peripheral wall connected to the second connecting portion, and an end wall formed at the top end of the peripheral wall , The peripheral wall is formed with a side exhaust hole, the blocking member and the control unit are provided on the end wall, and the switch is exposed outside the end wall, the inner tube is formed inside the peripheral wall and spaced from the end wall, the The inner tube forms an inner air hole in fluid communication with the multi-way tube, the inner tube, the peripheral wall and the end wall jointly define an air chamber communicating between the side exhaust hole and the inner air hole, the side exhaust The hole, the air chamber and the inner air hole together constitute the exhaust flow path, when the shaft is in the blocking position, the shaft closes the inner air hole, and when the shaft is in the open position, the shaft moves Away from the inner pores. The respirator according to claim 1, wherein the multi-way tube includes a first tube body and a second tube body connected to a side of the first tube body, the first tube body having the first connection And the second connection portion define a first axis, the second tube body has the third connection portion and defines a second axis, the second connection portion is inclined toward the second tube body direction, the first axis It intersects the second axis with an acute angle. The respirator according to claim 4, wherein the third connection portion is rotatably pivotally connected to the pressure measurement device and can be rotated 360 degrees around the second axis. The respirator according to claim 4, wherein the multi-way tube further includes a third tube connected to the other side of the first tube, and the gas output control device further includes a third tube The one-way valve, the one-way valve can unidirectionally circulate in the direction of the first tube body under the action of external pressure, the third tube body defines a third axis, and the one-way valve is inclined toward the second connection portion, The third axis intersects the first axis and the two form an acute angle. The respirator according to claim 1, wherein the third connecting portion is pivotally connected to the pressure measuring device in a 360-degree rotation. The respirator according to claim 1, wherein the multi-way tube further includes a fourth connection portion between the first connection portion and the second connection portion and opposite to the third connection portion, the gas output The control device further includes a one-way valve provided in the fourth connection portion, and the one-way valve can be circulated in one direction into the multi-way pipe under the action of external pressure. The respirator according to claim 1, wherein the pressure measuring device includes an air tube connected to the third connection part, an indicator, and a compression spring, the air tube is transparent and includes a scale unit, The gas pipe is formed with an air outlet, the indicator is penetrated in the gas pipe and can be driven by the gas to move in the gas pipe to correspondingly indicate a pressure value in the scale unit, and the compression spring is arranged in the gas pipe The air pipe and the indicator are used to apply elastic force to the indicator in the direction of the pressure relief device. The pressure relief device includes an air pipe, a first pressure relief valve, and a second pressure relief valve. The discharge pressure of the pressure relief valve is different from that of the second pressure relief valve. The first pressure relief valve and the second pressure relief valve are each detachably assembled to the gas pipe, and one of them can be selectively assembled to The gas pipe. A respirator containing: A pressure relief device; A pressure measurement device in fluid communication with the pressure relief device; and A gas output control device, including a multi-way tube, and a control module, one end of the multi-way tube is connected to the pressure measuring device and is in fluid communication with the control module, the control module includes a housing, a blocking member, and A control unit, the casing is connected to the other end of the multi-way pipe and defines an exhaust gas flow path in fluid communication with the multi-way pipe, and the blocking member is arranged in the casing for blocking or opening the exhaust gas flow The control unit is disposed in the housing and electrically connected to the blocking member to control its operation, so that the blocking member blocks or opens the exhaust gas flow channel.

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