Exhaling valve assembly for breathing machine

Abstract

The invention discloses an exhalation valve assembly for a breathing machine, and relates to the technical field of medical instruments, the exhalation valve assembly comprises a mounting seat, a mounting groove is formed in the bottom of the mounting seat, a valve body structure is inserted in the mounting groove of the mounting seat, and the valve body structure comprises a valve body front end, a valve body rear end, a connecting piece and a throttling piece; one end of the valve body front end is connected with one end of the valve body rear end in a sleeved mode, the end, close to the valve body rear end, of the valve body front end is fixedly connected with the connecting piece, the other end of the connecting piece is fixedly connected with the valve body rear end, and the side, close to the valve body rear end, of the valve body front end is connected with the throttling piece in a sleeved mode. The valve body front end, the valve body rear end and the connecting piece are used in cooperation with the socket assembly, in the using process, part of gas sequentially passes through the second gas hole, the first gas hole, the seventh gas hole and the sixth gas hole to enter the jacks in the socket assembly, pipe-free connection operation of a sampling channel of flow collecting equipment is achieved, and additional pipeline connection and installation are not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an exhalation valve assembly for a ventilator. Background Art

[0002] A ventilator is a medical device used to support breathing for patients with insufficient respiratory capacity, and the exhalation valve is an important component of the ventilator. Its function is to control the air pressure of the patient's exhaled gas and keep it above atmospheric pressure, thereby achieving pressure control, pressure monitoring, flow monitoring and other functions for the patient during the exhalation phase. The quality of its working condition directly affects the performance of the machine. Since the exhalation valve assembly needs to be cleaned and disinfected before it can be used again, the exhalation valve assembly needs to be disassembled frequently.

[0003] However, the following defects or problems still exist in combination with the prior art: First, the exhalation valve assembly is generally connected to the flow collection device through a pipeline. When the exhalation valve assembly is disassembled, it is generally necessary to additionally disassemble the interconnected pipelines, thereby increasing the workload of the client and increasing the probability of error; second, the exhalation valve assembly is generally fixed to the ventilator by screws. Additional tools are required for disassembly, which makes the disassembly cumbersome and the screws are easily lost, affecting the installation of the exhalation valve assembly. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an exhalation valve assembly for a ventilator.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An exhalation valve assembly for a ventilator comprises a mounting seat, a mounting groove is provided at the bottom of the mounting seat, a valve body structure is inserted in the mounting groove, and the valve body structure comprises a valve body front end, a valve body rear end, a connecting piece and a throttling piece;

[0007] One end of the front end of the valve body is sleeved with one end of the rear end of the valve body, one end of the front end of the valve body close to the rear end of the valve body is fixedly connected to the connecting piece, the other end of the connecting piece is fixedly connected to the rear end of the valve body, one side of the front end of the valve body close to the rear end of the valve body is sleeved with the throttling piece, the throttling piece is located inside the rear end of the valve body, and the other side of the throttling piece is clamped with the inner wall of the rear end of the valve body;

[0008] A socket assembly is fixedly mounted on the inner wall of the mounting seat, the socket assembly and the output end of the connector are sleeved with each other, a fixed knob is sleeved on the outer wall of the front end of the valve body, and the fixed knob and the mounting seat are clamped with each other.

[0009] Preferably, a front boss is fixedly connected to an outer wall on one side of the front end of the valve body, a first air hole is formed on the upper surface of the front boss, a first positioning column is fixedly connected to the upper surface of the front boss, a first threaded hole is formed on the outer wall of the first positioning column, a first inner boss is fixedly connected to the inner wall of the front end of the valve body, a second air hole is formed on the outer wall of the first inner boss, and the second air hole is connected to the first air hole;

[0010] A rear boss is fixedly connected to an outer wall of one side of the rear end of the valve body, a third air hole is opened on the upper surface of the rear boss, a second positioning column is fixedly connected to the upper surface of the rear boss, a second threaded hole is opened on the outer wall of the second positioning column, a second inner boss is fixedly connected to the inner wall of the rear end of the valve body, a fourth air hole is opened on the outer wall of the second inner boss, and the fourth air hole is connected to the third air hole;

[0011] The connecting piece includes a connecting block, the outer wall of the connecting block is provided with a first fixing hole matching the first positioning column, the outer wall of the connecting block is provided with a second fixing hole matching the second positioning column, the outer wall of the connecting block is fixedly connected with a first plug-in column and a second plug-in column, the outer walls of the first plug-in column and the second plug-in column are respectively provided with a fifth air hole and a sixth air hole, the lower surface of the connecting block is respectively provided with a seventh air hole and an eighth air hole, the seventh air hole is connected with the fifth air hole, and the eighth air hole is connected with the sixth air hole.

[0012] Preferably, a buckle is provided on the side of the front end of the valve body away from the front boss, and the buckle is located at an end close to the rear end of the valve body. A buckle head matching the buckle is provided on the side of the rear end of the valve body away from the rear boss, and the buckle head is located at an end close to the front end of the valve body, and the buckle head and the buckle are engaged with each other.

[0013] Preferably, an external positioning block is provided at one end of the rear end of the valve body away from the front end of the valve body, and the mounting seat is provided with a first positioning groove matching the external positioning block at the mounting groove, and the external positioning block corresponds to the buckle head.

[0014] Preferably, an inner wall at the front end of the valve body is provided with an inner positioning block, and the inner positioning block is located at an end close to the rear end of the valve body. A second positioning groove matching the inner positioning block is opened on the outer wall at one end of the rear end of the valve body, and the second positioning groove is located at an end close to the front end of the valve body. The inner positioning block is clamped with the rear end of the valve body through the second positioning groove.

[0015] Preferably, the throttling device includes an inner ring, which is located inside the rear end of the valve body, and the outer wall of the inner ring close to the front end of the valve body is fixedly connected with a second protrusion, and a diaphragm is provided on the side of the inner ring close to the front end of the valve body, and the outer wall of the diaphragm is provided with a connecting hole matching the second protrusion, and the diaphragm is mutually sleeved with the second protrusion through the connecting hole, and the outer wall of the diaphragm is provided with a first throttling hole.

[0016] Preferably, a second snap-in groove is provided on one side of the inner ring close to the rear end of the valve body, and a first protrusion matching the second snap-in groove is provided on the inner wall of the rear end of the valve body, and the first protrusion is snap-connected with the second protrusion through the second snap-in groove, and a first snap-in groove matching the second protrusion is provided on the inner wall of the front end of the valve body, and the second protrusion is nested in the first snap-in groove.

[0017] Preferably, the socket assembly includes a fixed seat, which is fixedly connected to the inner wall of the mounting seat by screws, and a movable seat is fixedly connected to the interior of the fixed seat. Sockets are provided on both sides of the outer wall of the movable seat, and the two sockets are matched with the first plug-in column and the second plug-in column respectively, and the first plug-in column and the second plug-in column are mutually socketed with the movable seat through the sockets.

[0018] Preferably, the outer wall of the fixed seat is provided with a mounting hole matching the movable seat, the movable seat is mutually socketed with the fixed seat through the mounting hole, one side of the fixed seat is fixedly connected with an outer plate, the outer plate is located on the outer side of the movable seat, the outer wall of the outer plate is provided with a fifth threaded hole, the outer wall of the movable seat is provided with a sixth threaded hole matching the fifth threaded hole, and the fifth threaded hole and the sixth threaded hole correspond to each other.

[0019] Preferably, the outer side wall of the fixing knob is fixedly connected with a fixing block, the mounting seat is located at the mounting groove and has an outer slot matching the fixing block, the mounting seat is located at the outer slot and has a fixing slot matching the fixing block, the fixing slot is located on the inner side of the outer slot, the fixing block is clamped with the mounting seat through the fixing slot, and the outer wall of the fixing knob is provided with an external protrusion.

[0020] The beneficial effects of the present invention are:

[0021] 1. In the present invention, through the design of the front end of the valve body, the rear end of the valve body and the connecting piece, the connecting piece is placed on the upper surface of the front boss and the rear boss, and at the same time, the first positioning column and the second positioning column are inserted into the first fixing hole and the second fixing hole, and the screws pass through the first fixing hole and the second fixing hole and the first threaded hole and the second threaded hole to complete the fixation of the connecting piece. At the same time, the front end of the valve body and the rear end of the valve body are fixedly connected through the connecting piece. At this time, the overall assembly of the valve body structure is completed, and the front end of the valve body and the rear end of the valve body are fixedly connected through the connecting piece, and the communication of the gas pipeline is also realized.

[0022] 2. In the present invention, the front end of the valve body, the rear end of the valve body, and the connector are used in conjunction with the socket assembly. During use, part of the gas enters the jack on the socket assembly through the second air hole, the first air hole, the seventh air hole, and the sixth air hole respectively, thereby realizing the pipeless connection operation of the sampling channel of the flow collection device. No additional pipeline connection and installation are required, and data collection is realized through the flow collection device connected to the jack.

[0023] 3. In the present invention, through the design of the socket assembly, the fixed seat and the movable seat are fixedly connected by screws between the fifth threaded hole and the sixth threaded hole, so that the fixed seat and the movable seat can be disassembled and replaced. When the movable seat and the connecting piece are worn out due to repeated plugging and unplugging for a long time, the screws between the fifth threaded hole and the sixth threaded hole can be loosened to remove the movable seat from the fixed seat for replacement, without replacing the entire socket assembly, which can reduce consumables.

[0024] 4. In the present invention, the fixing knob is designed to cooperate with the mounting seat, and the fixing knob is sleeved on the outer side of the front end of the valve body, and the fixing block is aligned with the outer slot to insert the fixing knob into the mounting slot, and then the fixing knob is rotated through the outer protrusion, and the fixing block is inserted into the fixing slot. The fixing knob cooperates with the mounting seat to achieve fixed installation of the valve body structure. When the valve body structure needs to be disinfected and cleaned, the fixing knob can be removed from the mounting seat by rotating the fixing knob, and then the valve body structure can be pulled out of the mounting slot. At this time, the connector is separated from the socket assembly, and then the entire valve body structure, i.e. the front end of the valve body, the rear end of the valve body, the connector and the throttling element, can be sterilized at high temperature. The installation and disassembly are convenient, and the installation and disassembly can be completed without additional auxiliary tools, which is easy to use.

[0025] 5. In the present invention, through the design of the throttling device, when the diaphragm in the throttling device is damaged, since the front end of the valve body, the rear end of the valve body, the connecting piece and the throttling device can be disassembled, the screws on the first fixing hole and the second fixing hole can be used to complete the disassembly of the front end of the valve body, the rear end of the valve body, the connecting piece and the throttling device, so that the diaphragm in the valve body structure can be replaced very conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an exhalation valve assembly for a ventilator of the present invention.

[0027] Figure 2 It is a structural schematic diagram of a mounting base of an exhalation valve assembly for a ventilator according to the present invention.

[0028] Figure 3 The present invention is a schematic structural diagram of a valve body front end, a fixed knob, a valve body rear end, a connector, and a socket of an exhalation valve assembly for a ventilator.

[0029] Figure 4The present invention is a schematic structural diagram of a fixed knob of an exhalation valve assembly for a ventilator.

[0030] Figure 5 The present invention is a front view of a valve body front end, a fixed knob, and a valve body rear end of an exhalation valve assembly for a ventilator.

[0031] Figure 6 The present invention is a cross-sectional view of a valve body front end, a fixed knob, and a valve body rear end of an exhalation valve assembly for a ventilator.

[0032] Figure 7 It is a structural schematic diagram of a valve body front end, a valve body rear end, and a connecting piece of an exhalation valve assembly for a ventilator of the present invention.

[0033] Figure 8 The present invention is an exploded view of a valve body front end, a valve body rear end, and a connecting piece of an exhalation valve assembly for a ventilator.

[0034] Fig. 9 It is a structural schematic diagram of the front end of a valve body of an exhalation valve assembly for a ventilator according to the present invention.

[0035] Fig.10 It is a structural schematic diagram of a valve body front end, a second inner boss, and a fourth air hole of an exhalation valve assembly for a ventilator of the present invention.

[0036] Fig.11 The present invention is a schematic structural diagram of the rear end of a valve body of an exhalation valve assembly for a ventilator.

[0037] Fig.12 It is a structural schematic diagram of the rear end of the valve body, the buckle head, and the external positioning block of an exhalation valve assembly for a ventilator of the present invention.

[0038] Fig.13 It is a structural schematic diagram of a connecting piece of an exhalation valve assembly for a ventilator of the present invention.

[0039] Fig.14 It is a schematic structural diagram of a connector, a seventh air hole, and an eighth air hole of an exhalation valve assembly for a ventilator of the present invention.

[0040] Fig.15 The present invention is a schematic structural diagram of a throttling member of an exhalation valve assembly for a ventilator.

[0041] Fig.16 It is a structural schematic diagram of a socket assembly of an exhalation valve assembly for a ventilator according to the present invention.

[0042] Fig.17 The present invention is an exploded view of a socket assembly of an exhalation valve assembly for a ventilator.

[0043] Fig.18It is a structural schematic diagram of a fixing seat of an exhalation valve assembly for a ventilator according to the present invention.

[0044] Fig.19 The figure is a schematic structural diagram of an exhalation valve assembly for a ventilator after assembly according to the present invention.

[0045] Fig. 20 The present invention is a schematic structural diagram of a diaphragm of an exhalation valve assembly for a ventilator.

[0046] Numbers in the figure: 1, mounting seat; 101, mounting slot; 102, outer slot; 103, fixing slot; 104, first positioning slot;

[0047] 2. Front end of valve body; 201. front boss; 202. first air hole; 203. first positioning column; 204. first threaded hole; 205. first inner boss; 206. second air hole; 207. first snap-fit ​​groove; 208. buckle; 209. inner positioning block;

[0048] 3. fixing knob; 301. fixing block; 302. external protrusion;

[0049] 4. rear end of valve body; 401. rear boss; 402. third air hole; 403. second positioning column; 404. second threaded hole; 405. second inner boss; 406. fourth air hole; 407. second positioning groove; 408. first boss; 409. buckle; 410. outer positioning block;

[0050] 5. Connecting piece; 501. Connecting block; 502. First fixing hole; 503. Second fixing hole; 504. First plug-in column; 505. Fifth air hole; 506. Second plug-in column; 507. Sixth air hole; 508. Seventh air hole; 509. Eighth air hole;

[0051] 6. Socket assembly; 601. Fixed seat; 602. Movable seat; 603. Mounting hole; 604. Outer plate; 605. Fifth threaded hole; 606. Sixth threaded hole; 607. Socket;

[0052] 7. Throttling member; 701. Inner ring; 702. Second protrusion; 703. Second snap-in groove; 704. Diaphragm; 705. First throttling hole; 706. Connecting hole; 707. Second throttling hole. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0054] As attached Figure 1 To Attachment Fig.19As shown, an exhalation valve assembly for a ventilator includes a mounting seat 1, a mounting groove 101 is provided at the bottom of the mounting seat 1, and a valve body structure is inserted into the mounting groove 101 of the mounting seat 1, and the valve body structure includes a valve body front end 2, a valve body rear end 4, a connecting piece 5 and a throttling piece 7;

[0055] One end of the front end 2 of the valve body is sleeved with one end of the rear end 4 of the valve body, one end of the front end 2 of the valve body close to the rear end 4 of the valve body is fixedly connected with the connecting piece 5, the other end of the connecting piece 5 is fixedly connected with the rear end 4 of the valve body, one side of the front end 2 of the valve body close to the rear end 4 of the valve body is sleeved with the throttle 7, the throttle 7 is located inside the rear end 4 of the valve body, and the other side of the throttle 7 is clamped with the inner wall of the rear end 4 of the valve body;

[0056] A socket assembly 6 is fixedly mounted on the inner wall of the mounting seat 1 , and the socket assembly 6 and the output end of the connector 5 are sleeved with each other. A fixed knob 3 is sleeved on the outer wall of the front end 2 of the valve body, and the fixed knob 3 and the mounting seat 1 are clamped with each other.

[0057] In the above technical solution, the mounting base 1 is mounted on the ventilator [see Fig.19 】, the socket assembly 6 is connected to the flow collection device in the ventilator, the patient's exhaled gas will enter the interior of the valve body front end 2 from the outside of the valve body front end 2, and then the gas will generate a certain pressure difference after passing through the throttling piece 7. During use, part of the gas passes through the valve body front end 2, the valve body rear end 4, and the connecting piece 5 and enters the socket assembly 6 on the socket assembly 6, realizing the pipe-free operation of the sampling channel of the flow collection device, without the need for additional pipeline connection and installation, and realizing data collection through the flow collection device connected by the socket assembly 6. After the exhaled gas enters the tail of the valve body rear end 4, it is discharged into the atmosphere through the PEEP control diaphragm in the ventilator.

[0058] As attached Figure 7 To Attachment Fig.14 As shown, a front boss 201 is fixedly connected to an outer wall of one side of the front end 2 of the valve body, a first air hole 202 is opened on the upper surface of the front boss 201, a first positioning column 203 is fixedly connected to the upper surface of the front boss 201, a first threaded hole 204 is opened on the outer wall of the first positioning column 203, a first inner boss 205 is fixedly connected to the inner wall of the front end 2 of the valve body, a second air hole 206 is opened on the outer wall of the first inner boss 205, and the second air hole 206 is connected to the first air hole 202;

[0059] A rear boss 401 is fixedly connected to the outer wall of one side of the rear end 4 of the valve body, a third air hole 402 is formed on the upper surface of the rear boss 401, a second positioning column 403 is fixedly connected to the upper surface of the rear boss 401, a second threaded hole 404 is formed on the outer wall of the second positioning column 403, a second inner boss 405 is fixedly connected to the inner wall of the rear end 4 of the valve body, a fourth air hole 406 is formed on the outer wall of the second inner boss 405, and the fourth air hole 406 is connected to the third air hole 402;

[0060] The connecting member 5 includes a connecting block 501, the outer wall of the connecting block 501 is provided with a first fixing hole 502 matching the first positioning column 203, the outer wall of the connecting block 501 is provided with a second fixing hole 503 matching the second positioning column 403, the outer wall of the connecting block 501 is fixedly connected with a first plug-in column 504 and a second plug-in column 506, the outer walls of the first plug-in column 504 and the second plug-in column 506 are respectively provided with a fifth air hole 505 and a sixth air hole 507, the lower surface of the connecting block 501 is respectively provided with a seventh air hole 508 and an eighth air hole 509, the seventh air hole 508 is connected to the fifth air hole 505, and the eighth air hole 509 is connected to the sixth air hole 507.

[0061] In the above technical solution, the throttle 7 is first assembled inside the front end 2 of the valve body, and the end of the rear end 4 of the valve body with the first convex head 408 is inserted into the front end 2 of the valve body, and the inner positioning block 209 is inserted into the second positioning groove 407 to achieve positioning, and the connecting member 5 is placed on the upper surface of the front boss 201 and the rear boss 401. At the same time, the first positioning column 203 and the second positioning column 403 are inserted into the first fixing hole 502 and the second fixing hole 503, and the screws pass through the first fixing hole 502 and the second fixing hole 503 and the first threaded hole 204 and the second threaded hole 404 to complete the fixing of the connecting member 5. At the same time, the front end 2 of the valve body and the rear end 4 of the valve body are fixedly connected through the connecting member 5. At this time, the overall assembly of the valve body structure is completed;

[0062] Specifically, the gas enters the socket assembly 6 through the second air hole 206, the first air hole 202, the seventh air hole 508, and the fifth air hole 505 in sequence, thereby realizing the pipeless connection operation of the sampling channel of the flow collection device without the need for additional pipeline connection and installation.

[0063] As attached Fig. 9 To Attachment Fig.12 As shown, a buckle 208 is provided on the side of the front end 2 of the valve body away from the front boss 201, and the buckle 208 is located at an end close to the rear end 4 of the valve body. A buckle head 409 matching the buckle 208 is provided on the side of the rear end 4 of the valve body away from the rear boss 401, and the buckle head 409 is located at an end close to the front end 2 of the valve body, and the buckle head 409 and the buckle 208 are engaged with each other.

[0064] In the above technical solution, through the design of the buckle 409 and the buckle 208, the buckle 208 is snapped into the outer side of the buckle 409 to achieve further fixed connection between the front end 2 of the valve body and the rear end 4 of the valve body. The buckle 409 and the buckle 208 cooperate with the connecting part 5 to ensure the stability and sealing of the connection between the front end 2 of the valve body and the rear end 4 of the valve body.

[0065] As attached Figure 2 and attached Fig.12As shown, an external positioning block 410 is provided at one end of the valve body rear end 4 away from the valve body front end 2, and the mounting seat 1 is provided with a first positioning groove 104 matching the external positioning block 410 at the mounting groove 101, and the external positioning block 410 corresponds to the buckle 409.

[0066] In the above technical solution, after the valve body structure is assembled, when the entire valve body structure is installed, the external positioning block 410 is aligned with the first positioning groove 104. The valve body structure can be positioned through the external positioning block 410 and the first positioning groove 104, which facilitates the installation between the valve body structure and the ventilator.

[0067] As attached Fig.10 To Attachment Fig.11 As shown, the inner wall of the front end 2 of the valve body is provided with an inner positioning block 209, and the inner positioning block 209 is located at one end close to the rear end 4 of the valve body. The outer wall of one end of the rear end 4 of the valve body is provided with a second positioning groove 407 matching the inner positioning block 209, and the second positioning groove 407 is located at one end close to the front end 2 of the valve body. The inner positioning block 209 is mutually clamped with the rear end 4 of the valve body through the second positioning groove 407.

[0068] In the above technical solution, through the design of the second positioning groove 407 and the inner positioning block 209, the end of the valve body rear end 4 with the first protrusion 408 is inserted into the valve body front end 2, and the inner positioning block 209 is inserted into the second positioning groove 407 to achieve positioning;

[0069] As attached Figure 8 To Attachment Fig.12 and attached Fig.15 As shown, the throttling member 7 includes an inner ring 701, which is located inside the rear end 4 of the valve body. The outer wall of the inner ring 701 on one side close to the front end 2 of the valve body is fixedly connected with a second protrusion 702. A diaphragm 704 is provided on the side of the inner ring 701 close to the front end 2 of the valve body. A connecting hole 706 matching the second protrusion 702 is provided on the outer wall of the diaphragm 704. The diaphragm 704 is sleeved with the second protrusion 702 through the connecting hole 706. A first throttling hole 705 is provided on the outer wall of the diaphragm 704. A second clamping groove 703 is provided on the side of the inner ring 701 close to the rear end 4 of the valve body. A first protrusion 408 matching the second clamping groove 703 is provided on the inner wall of the rear end 4 of the valve body. The first protrusion 408 is clamped with the second protrusion 702 through the second clamping groove 703. The inner wall of the front end 2 of the valve body is provided with a first clamping groove 207 matching the second protrusion 702. The second protrusion 702 is nested in the first clamping groove 207.

[0070] In the above technical solution, the inner ring 701 is placed into the rear end 4 of the valve body, the first protrusion 408 is snapped into the second snap-in groove 703 to fix the inner ring 701, and then the diaphragm 704 is sleeved on one side of the inner ring 701 through the connection hole 706 and the second protrusion 702, thereby completing the assembly of the throttling device 7; then the end of the rear end 4 of the valve body with the first protrusion 408 is inserted into the front end 2 of the valve body, the inner positioning block 209 is snapped into the second positioning groove 407 to achieve positioning, and the second protrusion 702 is inserted into the first snap-in groove 207, which can prevent the diaphragm 704 from falling off, and the installation of the throttling device 7 is completed at this time.

[0071] It is worth mentioning that replacing another diaphragm 704 [see Fig. 20 】It can be used as an exhalation valve for newborns. A second throttling hole 707 is opened on the diaphragm 704. The flow area of ​​the second throttling hole 707 is smaller and is suitable for use as an exhalation valve for newborns.

[0072] As attached Fig.13 and attached Fig.16 To Attachment Fig.18 As shown, the socket assembly 6 includes a fixed seat 601, which is fixedly connected to the inner wall of the mounting seat 1 by screws, and the interior of the fixed seat 601 is fixedly connected to a movable seat 602, and both sides of the outer wall of the movable seat 602 are provided with sockets 607, and the two sockets 607 are matched with the first plug-in column 504 and the second plug-in column 506 respectively, and the first plug-in column 504 and the second plug-in column 506 are mutually connected with the movable seat 602 through the sockets 607.

[0073] In the above technical solution, the two sockets 607 on the socket assembly 6 are respectively connected to the flow collection device in the ventilator. During use, part of the gas enters the socket assembly 6 through the second air hole 206, the first air hole 202, the seventh air hole 508, and the sixth air hole 507 in sequence, thereby realizing the pipeless connection operation of the sampling channel of the flow collection device. No additional pipeline connection and installation are required, and data collection is realized through the flow collection device connected by the socket 607; another part of the gas enters another socket assembly 6 through the fourth air hole 406, the third air hole 402, the eighth air hole 509, and the fifth air hole 505 in sequence, thereby realizing the collection of the gas pressures of the two paths.

[0074] As attached Fig.16 To Attachment Fig.18As shown, the outer wall of the fixed seat 601 is provided with a mounting hole 603 matching the movable seat 602, the movable seat 602 is mutually socketed with the fixed seat 601 through the mounting hole 603, one side of the fixed seat 601 is fixedly connected with an outer plate 604, the outer plate 604 is located on the outer side of the movable seat 602, the outer wall of the outer plate 604 is provided with a fifth threaded hole 605, the outer wall of the movable seat 602 is provided with a sixth threaded hole 606 matching the fifth threaded hole 605, and the fifth threaded hole 605 and the sixth threaded hole 606 correspond to each other.

[0075] In the above technical solution, through the design of the socket assembly 6, the fixed seat 601 and the movable seat 602 are fixedly connected by screws between the fifth threaded hole 605 and the sixth threaded hole 606, so that the fixed seat 601 and the movable seat 602 can be disassembled and replaced. When the movable seat 602 and the connecting member 5 are worn out due to repeated plugging and unplugging for a long time, the screws between the fifth threaded hole 605 and the sixth threaded hole 606 can be loosened to remove the movable seat 602 from the fixed seat 601 for replacement, without replacing the entire socket assembly 6, which can reduce consumables.

[0076] As attached Figure 1 To Attachment Figure 6 As shown, the outer wall of the fixing knob 3 is fixedly connected with a fixing block 301, the mounting seat 1 is provided with an outer slot 102 matching the fixing block 301 at the mounting groove 101, the mounting seat 1 is provided with a fixing slot 103 matching the fixing block 301 at the outer slot 102, the fixing slot 103 is located on the inner side of the outer slot 102, the fixing block 301 is mutually clamped with the mounting seat 1 through the fixing slot 103, and the outer wall of the fixing knob 3 is provided with an outer protrusion 302.

[0077] In the above technical scheme, the fixing knob 3 is designed to cooperate with the mounting seat 1, and the fixing knob 3 is sleeved on the outer side of the front end 2 of the valve body, and the fixing block 301 is aligned with the outer slot 102 to insert the fixing knob 3 into the mounting slot 101, and then the fixing knob 3 is rotated through the outer protrusion 302, and the fixing block 301 is inserted into the fixing slot 103. The fixing knob 3 cooperates with the mounting seat 1 to achieve fixed installation of the valve body structure; when the valve body structure needs to be disinfected and cleaned, the fixing knob 3 is rotated to remove the fixing knob 3 from the mounting seat 1, and then the valve body structure can be pulled out of the mounting slot 101. At this time, the connecting piece 5 is separated from the socket assembly 6, and then the entire valve body structure, namely the front end 2 of the valve body, the rear end 4 of the valve body, the connecting piece 5 and the throttling piece 7, can be subjected to high-temperature disinfection, which is convenient for installation and disassembly and easy to use.

[0078] The specific usage and function of this embodiment are as follows:

[0079] When installing the present invention, the inner ring 701 is placed into the rear end 4 of the valve body, the first protrusion 408 is inserted into the second clamping groove 703 to fix the inner ring 701, and then the diaphragm 704 is sleeved on one side of the inner ring 701 through the connection hole 706 and the second protrusion 702, thereby completing the assembly of the throttling member 7;

[0080] Then, insert the end of the valve body rear end 4 with the first protrusion 408 into the valve body front end 2, and insert the inner positioning block 209 into the second positioning groove 407 to achieve positioning, and insert the second protrusion 702 into the first clamping groove 207 to prevent the diaphragm 704 from falling off. At this time, the installation of the throttling member 7 is completed;

[0081] For the above structure and process, please refer to Figure 8-12 and Fig.15 .

[0082] The connecting piece 5 is placed on the upper surface of the front boss 201 and the rear boss 401, and the first positioning column 203 and the second positioning column 403 are inserted into the first fixing hole 502 and the second fixing hole 503. The screws pass through the first fixing hole 502 and the second fixing hole 503 and the first threaded hole 204 and the second threaded hole 404 to fix the connecting piece 5. At the same time, the front end 2 and the rear end 4 of the valve body are fixedly connected through the connecting piece 5. At this time, the overall assembly of the valve body structure is completed;

[0083] For the above structure and process, please refer to Figure 8-14 .

[0084] After the valve body structure is assembled, the valve body structure is placed in the installation groove 101, with the rear end 4 of the valve body located inside and the front end 2 of the valve body located outside. At this time, the first plug-in column 504 and the second plug-in column 506 on the connecting block 501 are inserted into the plug hole 607, and the connecting piece 5 and the socket assembly 6 are connected by plugging;

[0085] For the above structure and process, please refer to Figure 2 and Figure 13-18 .

[0086] The fixing knob 3 is sleeved on the outside of the front end 2 of the valve body, and the fixing block 301 is aligned with the outer slot 102 to insert the fixing knob 3 into the mounting slot 101, and then the fixing knob 3 is rotated by the outer protrusion 302, and the fixing block 301 is inserted into the fixing slot 103, and the fixing knob 3 cooperates with the mounting seat 1 to achieve fixed installation of the valve body structure;

[0087] For the above structure and process, please refer to Figure 1-4 .

[0088] When the present invention is used, the mounting base 1 is mounted on the ventilator [see Fig.19】, the two sockets 607 on the socket assembly 6 are respectively connected to the flow collection equipment in the ventilator, and the patient's exhaled gas will enter the interior of the valve body front end 2 from the outside of the valve body front end 2, and then the gas passes through the first throttle hole 705 on the diaphragm 704, and a certain pressure difference is generated after passing through the throttle 7. The exhaled gas enters the tail of the valve body rear end 4 and is discharged to the atmosphere through the PEEP control diaphragm in the ventilator;

[0089] During use, part of the gas enters the jack 607 on the socket assembly 6 through the second pore 206, the first pore 202, the seventh pore 508, and the sixth pore 507 in sequence, thereby realizing the pipeless connection operation of the sampling channel of the flow collection device, and no additional pipeline connection and installation are required, and data collection is realized by the flow collection device connected through the jack 607;

[0090] Another part of the gas enters another plug hole 607 on the socket assembly 6 through the fourth gas hole 406, the third gas hole 402, the eighth gas hole 509, and the fifth gas hole 505 in sequence, so as to collect the pressure of the two gases;

[0091] For the above structure and process, please refer to Figure 1-19 .

[0092] When the valve body structure needs to be disinfected and cleaned after use, the fixing knob 3 can be turned to remove the fixing knob 3 from the mounting seat 1, and then the valve body structure can be pulled out of the mounting groove 101. At this time, the connecting piece 5 is separated from the socket assembly 6, and then the entire valve body structure, i.e., the valve body front end 2, the valve body rear end 4, the connecting piece 5 and the throttling piece 7, can be sterilized at high temperature, which is convenient to use;

[0093] When the diaphragm 704 in the throttling member 7 is damaged, since the front end 2 of the valve body, the rear end 4 of the valve body, the connecting member 5 and the throttling member 7 are all disassembled, the front end 2 of the valve body, the rear end 4 of the valve body, the connecting member 5 and the throttling member 7 can be disassembled by loosening the screws on the first fixing hole 502 and the second fixing hole 503, and the diaphragm 704 in the valve body structure can be replaced very conveniently.

[0094] For the above structure and process, please refer to Figure 1-19 .

[0095] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An exhalation valve assembly for a ventilator, comprising a mounting seat (1), characterized in that: The bottom of the mounting seat (1) is provided with a mounting groove (101), and the mounting seat (1) is located in the mounting groove (101) and a valve body structure is inserted therein, wherein the valve body structure comprises a valve body front end (2), a valve body rear end (4), a connecting piece (5) and a throttling piece (7); One end of the front end (2) of the valve body is sleeved with one end of the rear end (4) of the valve body, one end of the front end (2) of the valve body close to the rear end (4) of the valve body is fixedly connected to a connecting piece (5), and the other end of the connecting piece (5) is fixedly connected to the rear end (4) of the valve body, and one side of the front end (2) of the valve body close to the rear end (4) of the valve body is sleeved with a throttling piece (7), and the throttling piece (7) is located inside the rear end (4) of the valve body, and the other side of the throttling piece (7) is clamped with the inner wall of the rear end (4) of the valve body; A socket assembly (6) is fixedly mounted on the inner wall of the mounting seat (1), the socket assembly (6) and the output end of the connecting piece (5) are sleeved with each other, a fixed knob (3) is sleeved on the outer wall of the front end of the valve body (2), and the fixed knob (3) and the mounting seat (1) are clamped with each other.

2. An exhalation valve assembly for a ventilator according to claim 1, characterized in that: A front boss (201) is fixedly connected to an outer wall of one side of the front end (2) of the valve body, a first air hole (202) is provided on the upper surface of the front boss (201), a first positioning column (203) is fixedly connected to the upper surface of the front boss (201), a first threaded hole (204) is provided on the outer wall of the first positioning column (203), a first inner boss (205) is fixedly connected to the inner wall of the front end (2) of the valve body, a second air hole (206) is provided on the outer wall of the first inner boss (205), and the second air hole (206) is connected to the first air hole (202); A rear boss (401) is fixedly connected to an outer wall of one side of the rear end (4) of the valve body, a third air hole (402) is provided on the upper surface of the rear boss (401), a second positioning column (403) is fixedly connected to the upper surface of the rear boss (401), a second threaded hole (404) is provided on the outer wall of the second positioning column (403), a second inner boss (405) is fixedly connected to the inner wall of the rear end (4) of the valve body, a fourth air hole (406) is provided on the outer wall of the second inner boss (405), and the fourth air hole (406) is connected to the third air hole (402); The connecting member (5) comprises a connecting block (501), the outer wall of the connecting block (501) is provided with a first fixing hole (502) matching with the first positioning column (203), the outer wall of the connecting block (501) is provided with a second fixing hole (503) matching with the second positioning column (403), the outer wall of the connecting block (501) is fixedly connected with a first plug-in column (504) and a second plug-in column (506), the outer walls of the first plug-in column (504) and the second plug-in column (506) are respectively provided with a fifth air hole (505) and a sixth air hole (507), the lower surface of the connecting block (501) is respectively provided with a seventh air hole (508) and an eighth air hole (509), the seventh air hole (508) is connected to the fifth air hole (505), and the eighth air hole (509) is connected to the sixth air hole (507).

3. An exhalation valve assembly for a ventilator according to claim 2, characterized in that: A buckle (208) is provided on the side of the front end (2) of the valve body away from the front boss (201), and the buckle (208) is located at an end close to the rear end (4) of the valve body. A buckle head (409) matching the buckle (208) is provided on the side of the rear end (4) of the valve body away from the rear boss (401), and the buckle head (409) is located at an end close to the front end (2) of the valve body, and the buckle head (409) and the buckle (208) are mutually engaged.

4. An exhalation valve assembly for a ventilator according to claim 3, characterized in that: An external positioning block (410) is provided at one end of the valve body rear end (4) away from the valve body front end (2), and the mounting seat (1) is provided with a first positioning groove (104) matching the external positioning block (410) at the mounting groove (101), and the external positioning block (410) corresponds to the buckle (409) mutually.

5. An exhalation valve assembly for a ventilator according to claim 2, characterized in that: The inner wall of the front end (2) of the valve body is provided with an inner positioning block (209), and the inner positioning block (209) is located at an end close to the rear end (4) of the valve body. The outer wall of one end of the rear end (4) of the valve body is provided with a second positioning groove (407) matching the inner positioning block (209), and the second positioning groove (407) is located at an end close to the front end (2) of the valve body. The inner positioning block (209) is mutually engaged with the rear end (4) of the valve body through the second positioning groove (407).

6. An exhalation valve assembly for a ventilator according to claim 1, characterized in that: The throttling member (7) comprises an inner ring (701), wherein the inner ring (701) is located inside the rear end (4) of the valve body, and a second protrusion (702) is fixedly connected to the outer wall of the inner ring (701) on one side close to the front end (2) of the valve body, and a diaphragm (704) is provided on the side of the inner ring (701) close to the front end (2) of the valve body, and a connecting hole (706) matching the second protrusion (702) is provided on the outer wall of the diaphragm (704), and the diaphragm (704) is sleeved with the second protrusion (702) through the connecting hole (706), and a first throttling hole (705) is provided on the outer wall of the diaphragm (704).

7. An exhalation valve assembly for a ventilator according to claim 6, characterized in that: A second snap-fitting groove (703) is provided on one side of the inner ring (701) close to the rear end (4) of the valve body, and a first protrusion (408) matching the second snap-fitting groove (703) is provided on the inner wall of the rear end (4) of the valve body. The first protrusion (408) is snap-fitted with the second protrusion (702) via the second snap-fitting groove (703). A first snap-fitting groove (207) matching the second protrusion (702) is provided on the inner wall of the front end (2) of the valve body, and the second protrusion (702) is nested in the first snap-fitting groove (207).

8. An exhalation valve assembly for a ventilator according to claim 1, characterized in that: The socket assembly (6) comprises a fixed seat (601), wherein the fixed seat (601) is fixedly connected to the inner wall of the mounting seat (1) by means of screws, and a movable seat (602) is fixedly connected to the interior of the fixed seat (601), and both sides of the outer wall of the movable seat (602) are provided with insertion holes (607), and the two insertion holes (607) are matched with the first plug-in column (504) and the second plug-in column (506) respectively, and the first plug-in column (504) and the second plug-in column (506) are mutually sleeved with the movable seat (602) via the insertion holes (607).

9. An exhalation valve assembly for a ventilator according to claim 8, characterized in that: The outer wall of the fixed seat (601) is provided with a mounting hole (603) matching the movable seat (602); the movable seat (602) is sleeved with the fixed seat (601) through the mounting hole (603); one side of the fixed seat (601) is fixedly connected with an outer plate (604); the outer plate (604) is located on the outer side of the movable seat (602); the outer wall of the outer plate (604) is provided with a fifth threaded hole (605); the outer wall of the movable seat (602) is provided with a sixth threaded hole (606) matching the fifth threaded hole (605); the fifth threaded hole (605) and the sixth threaded hole (606) correspond to each other.

10. An exhalation valve assembly for a ventilator according to claim 1, characterized in that: The outer side wall of the fixed knob (3) is fixedly connected with a fixed block (301); the mounting seat (1) is provided with an outer slot (102) matching the fixed block (301) at the mounting groove (101); the mounting seat (1) is provided with a fixed slot (103) matching the fixed block (301) at the outer slot (102); the fixed slot (103) is located on the inner side of the outer slot (102); the fixed block (301) is mutually clamped with the mounting seat (1) via the fixed slot (103); and the outer wall of the fixed knob (3) is provided with an outer protrusion (302).

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