Respirator capable of preventing gas backflow for medical internal medicine

Abstract

The utility model discloses a gas backflow prevention respirator for medical internal medicine, which comprises a respirator main body, the respirator main body comprises a bottom edge, a cover body, a connecting rod and a mounting block, a valve body is mounted at the top end of a pipe body, an outlet is arranged at the bottom end of the valve body, a filter box is mounted at the top end of a one-way valve structure, and a cover body is mounted at one end of the filter box. The valve body is installed at the top end of the pipe body, gas can enter the valve body through the inlet, the valve element can seal the valve body, the valve element and the valve body are connected through the spring, the spring is elastic, impact force generated when the gas enters the valve body can burst through the valve element, and the gas is discharged through the outlet after passing through the valve body. Due to the elasticity of the spring and the connection mode of the valve element, gas exhausted through the outlet cannot flow back through the valve element, and therefore the situation of backflow of the respirator can be prevented, and the purpose that the respirator for the medical internal medicine conveniently prevents the gas from flowing back is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to a medical internal medicine breathing mask with gas backflow prevention. Background Art

[0002] Medical supplies are a general term for items used to treat wounds or diseases. Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including required computer software. Medical devices include medical equipment and medical consumables. Respirators for medical internal medicine are a type of medical device, usually made of soft materials, that can cover the patient's mouth and nose to provide oxygen or other respiratory support. It is widely used in medical places such as emergency, operating rooms, and ICUs to help patients breathe or maintain respiratory function.

[0003] To this end, the patent specification with publication number CN215135364U discloses a clinical medical internal medicine breathing mask, including a mask body, a sponge pad, a sealing strip, a connecting tube, a stabilizing device, a connecting rope and a protective strip. The utility model installs a protective strip at the rear end of the connecting rope, and uses an elastic rope for connection inside the protective strip, so as to effectively achieve a small range of adjustment of the thickness position, and a movable soft sleeve is sleeved in the elastic rope, which has a certain softening effect and reduces the indentation caused by long-term use of patients; and a stabilizing device is sleeved in the middle of the outer diameter of the connecting tube, which can support the bending position at the bottom of the connecting tube, and can also stabilize the middle of the connecting tube to prevent bending, which leads to a reduction in air intake.

[0004] The above-mentioned prior art proposes that a movable soft sleeve is sleeved in the elastic rope, which has a certain softening effect and reduces the indentation caused by long-term use of the patient, and a stabilizing device is sleeved in the middle of the outer diameter of the connecting tube. The stabilizing device can support the bending position at the bottom of the connecting tube, and can also stabilize the middle part of the connecting tube to prevent bending, which leads to a reduction in air intake. However, 1. It is difficult to prevent gas reflux in medical internal medicine breathing masks. When the gas enters the inside of the mask, gas reflux may occur, which may cause insufficient oxygen supply.

[0005] 2. It is difficult for medical respirators to filter gases. When gases enter the mask, impurities may enter the mask, which will affect the health of the user. Utility Model Content

[0006] The utility model aims to provide a medical internal medicine breathing mask with gas backflow prevention, so as to solve the defects of the existing medical internal medicine breathing masks that are difficult to prevent gas backflow and difficult to filter gas.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a medical internal medicine breathing mask with gas backflow prevention, comprising a breathing mask main body;

[0008] The breathing mask body comprises a bottom edge, a mask body, a connecting rod and a mounting block, and the mask body is mounted on the top of the bottom edge;

[0009] A connecting rod is installed at the top of the cover body, and a mounting block is installed at the top of the connecting rod. An air intake structure is installed at the top of the cover body, and the air intake structure includes a pipe body, a filter box, a one-way valve structure, a cover body and a filter screen;

[0010] The tube body is installed at the top of the cover body, a one-way valve structure is installed at the top of the tube body, and the one-way valve structure includes a valve body, a spring, a valve core, an inlet and an outlet, the valve body is installed at the top of the tube body, an outlet is provided at the bottom of the valve body, an inlet is provided at the top of the valve body, a valve core is installed inside the valve body, and a spring is installed at the bottom of the valve core, a filter box is installed at the top of the one-way valve structure, and a cover body is installed at one end of the filter box.

[0011] When in use, first the threaded block and the connecting block are threadedly connected, the connecting block can be rotated along the rotating shaft, and the connecting block can be tightened. After the connecting block is screwed on the threaded block, the tube body can be connected to the connecting tube, so that the connecting tube can be connected to different tube bodies. The first elastic band and the second elastic band are elastic, and the first elastic band and the second elastic band can be wrapped around the user's head. The first Velcro on the first elastic band and the second Velcro on the second elastic band cooperate, and the first Velcro and the second Velcro cooperate to wrap the elastic band around the user's head and fix it.

[0012] Preferably, a strap structure is installed on both sides of the mounting block, and the strap structure includes a first elastic band, a second elastic band, a first Velcro, a second Velcro and a rotating shaft, and the rotating shaft is installed on both sides of the cover body, and the rotating shaft is installed on both sides of the mounting block, the first elastic band is installed on one side of the rotating shaft, and the second elastic band is installed on the other side of the rotating shaft, the bottom end of the top second elastic band is installed with the second Velcro, the top end of the first elastic band is installed with the first Velcro, the first elastic band and the second elastic band are elastic, and the first elastic band and the second elastic band can be wrapped around the user's head, the first Velcro on the first elastic band and the second Velcro on the second elastic band cooperate, and the first Velcro and the second Velcro cooperate to wrap the elastic band around the user's head and fix it.

[0013] Preferably, a clamping block is provided on one side of the cover body, a clamping slot is provided on one side of the filter box, and the cover body and the filter box form a clamping mechanism, which is easy to disassemble.

[0014] Preferably, a filter is installed at one end of the cover body, and the outer diameter of the filter is smaller than the inner diameter of the filter box. The filter can be made of activated carbon material, which can filter impurities inside the gas and prevent the impurities from entering the cover body.

[0015] Preferably, the spring is in a spiral shape, the spring and the valve core are elastically connected, and the spring is elastic.

[0016] Preferably, a connecting structure is installed at the top of the air intake structure, and the connecting structure includes a threaded block, a connecting block, a connecting pipe and a rotating shaft. The threaded block is installed at the top of the air intake structure, the top of the threaded block is movably connected to the connecting block, and the top of the connecting block is installed with a rotating shaft, and the top of the rotating shaft is installed with a connecting pipe, and the threaded block and the connecting block can cooperate to connect the connecting pipe and the tube body together.

[0017] Preferably, external threads are evenly arranged on the outer side wall of the threaded block, internal threads cooperating with the external threads are evenly arranged on the inner side wall of the connecting block, the threaded block and the connecting block are threadedly connected, and the connecting block can be tightened on the threaded block.

[0018] The medical internal medicine breathing mask with gas backflow prevention provided by the utility model has the advantages that: by installing a valve body at the top of the tube body, gas can enter the interior of the valve body through the inlet, the valve core can seal the valve body, the valve core and the valve body are connected by a spring, the spring is elastic, the impact force of gas entering the inside of the valve body will open the valve core, allowing the gas to pass through the valve body and then be discharged through the outlet, due to the elasticity of the spring and the connection method of the valve core, the gas discharged through the outlet cannot flow back through the valve core, thus preventing the breathing mask from backflowing, thereby achieving the purpose of preventing gas backflow in the medical internal medicine breathing mask.

[0019] A cover is installed on one side of the filter box, and the cover and the filter box have a locking mechanism. The locking mechanism is easy to disassemble, and the cover can be opened to replace the filter. Before the gas enters the cover, the gas will first be filtered through the filter. The filter can be made of activated carbon material, and can filter impurities inside the gas to prevent impurities from entering the cover. The filter that has been used for a long time can be replaced, so as to achieve the purpose of filtering the gas by the medical internal medicine breathing mask. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 3 For the utility model Figure 2A partial cross-section at the center is an enlarged structural diagram;

[0023] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the air intake structure of the utility model;

[0024] Figure 5 It is a schematic diagram of a three-dimensional partial cross-sectional structure of the directional valve structure of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. breathing mask body; 101. bottom edge; 102. mask body; 103. connecting rod; 104. mounting block; 2. air intake structure; 201. tube body; 202. filter box; 203. one-way valve structure; 2031. valve body; 2032. spring; 2033. valve core; 2034. inlet; 2035. outlet; 204. cover body; 205. filter screen; 3. connecting structure; 301. threaded block; 302. connecting block; 303. connecting pipe; 304. rotating shaft; 4. binding structure; 401. first elastic band; 402. second elastic band; 403. first magic tape; 404. second magic tape; 405. rotating shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model provides an embodiment: a medical internal medicine breathing mask with gas backflow prevention, comprising a breathing mask body 1.

[0028] The breathing mask body 1 includes a bottom edge 101, a mask body 102, a connecting rod 103 and a mounting block 104, and a strap structure 4 is installed on both sides of the mounting block 104. The strap structure 4 includes a first elastic band 401, a second elastic band 402, a first Velcro 403, a second Velcro 404 and a rotating shaft 405. The rotating shaft 405 is installed on both sides of the mask body 102, and the rotating shaft 405 is installed on both sides of the mounting block 104. The first elastic band 401 is installed on one side of the rotating shaft 405, and the second elastic band 402 is installed on the other side of the rotating shaft 405. The bottom end of the second elastic band 402 is installed with the second Velcro 404, and the top of the first elastic band 401 is installed with the first Velcro 403.

[0029] See attached Figure 1-2As shown, the first elastic band 401 and the second elastic band 402 are elastic, and the first elastic band 401 and the second elastic band 402 can be wrapped around the user's head. The first Velcro 403 on the first elastic band 401 and the second Velcro 404 on the second elastic band 402 cooperate with each other, and the first Velcro 403 and the second Velcro 404 cooperate to wrap the elastic bands around the user's head and fix them. The elasticity of the elastic bands can make the device more comfortable to use.

[0030] A cover body 102 is installed at the top of the bottom edge 101, a connecting rod 103 is installed at the top of the cover body 102, and a mounting block 104 is installed at the top of the connecting rod 103. An air intake structure 2 is installed at the top of the cover body 102, and a connecting structure 3 is installed at the top of the air intake structure 2. The connecting structure 3 includes a threaded block 301, a connecting block 302, a connecting pipe 303 and a rotating shaft 304. The threaded block 301 is installed at the top of the air intake structure 2, and external threads are evenly arranged on the outer side wall of the threaded block 301, and internal threads that cooperate with the external threads are evenly arranged on the inner side wall of the connecting block 302. The threaded block 301 and the connecting block 302 are threadedly connected.

[0031] The top of the threaded block 301 is movably connected to the connecting block 302 , and the top of the connecting block 302 is installed with a rotating shaft 304 , and the top of the rotating shaft 304 is installed with a connecting pipe 303 .

[0032] See attached Figure 1-3 As shown, the threaded block 301 and the connecting block 302 are just threadedly connected, and the connecting block 302 can be rotated along the rotating shaft 304. The connecting block 302 can be tightened. After the connecting block 302 can be screwed on the threaded block 301, the pipe body 201 can be connected to the connecting pipe 303, so that the connecting pipe 303 can be connected to different pipe bodies 201.

[0033] The air intake structure 2 includes a pipe body 201 , a filter box 202 , a one-way valve structure 203 , a cover body 204 and a filter screen 205 .

[0034] The tube body 201 is installed at the top of the cover body 102, and a one-way valve structure 203 is installed at the top of the tube body 201. The one-way valve structure 203 includes a valve body 2031, a spring 2032, a valve core 2033, an inlet 2034 and an outlet 2035. The valve body 2031 is installed at the top of the tube body 201, and the bottom end of the valve body 2031 is provided with an outlet 2035. The top end of the valve body 2031 is provided with an inlet 2034. A valve core 2033 is installed inside the valve body 2031, and a spring 2032 is installed at the bottom end of the valve core 2033. The shape of the spring 2032 is spiral, and the spring 2032 and the valve core 2033 form an elastic connection.

[0035] See attached Figure 1 and attached Figure 5As shown, gas can enter the valve body 2031 through the inlet 2034, the valve core 2033 can seal the valve body 2031, the valve core 2033 and the valve body 2031 are connected by a spring 2032, the spring 2032 is elastic, and the impact force of the gas entering the valve body 2031 will open the valve core 2033, allowing the gas to pass through the valve body 2031 and then be discharged through the outlet 2035. Due to the elasticity of the spring 2032 and the connection method of the valve core 2033, the gas discharged through the outlet 2035 cannot flow back through the valve core 2033, thereby preventing the breathing mask from flowing back.

[0036] A filter box 202 is installed at the top of the one-way valve structure 203 , and a cover 204 is installed at one end of the filter box 202 . A filter screen 205 is installed at one end of the cover 204 , and the outer diameter of the filter screen 205 is smaller than the inner diameter of the filter box 202 .

[0037] A clamping block is disposed on one side of the cover body 204, and a clamping slot is disposed on one side of the filter box 202. The cover body 204 and the filter box 202 form a clamping mechanism.

[0038] See attached Figure 1 and attached Figure 4 As shown, the cover body 204 and the filter box 202 have just a snap-fitting mechanism, and the snap-fitting mechanism is easy to disassemble. The cover body 204 can be opened to replace the filter 205. Before the gas enters the cover body 102, the gas will first be filtered by the filter 205. The filter 205 can be made of activated carbon material and can filter impurities inside the gas to prevent impurities from entering the cover body 102. The filter 205 that has been used for a long time can be replaced.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A medical internal medicine breathing mask with gas backflow prevention, comprising a breathing mask body (1); Features: The breathing mask body (1) comprises a bottom edge (101), a mask body (102), a connecting rod (103) and a mounting block (104), wherein the mask body (102) is mounted on the top of the bottom edge (101); A connecting rod (103) is installed at the top of the cover body (102), and a mounting block (104) is installed at the top of the connecting rod (103). An air intake structure (2) is installed at the top of the cover body (102), and the air intake structure (2) comprises a pipe body (201), a filter box (202), a one-way valve structure (203), a cover body (204) and a filter screen (205); The tube body (201) is mounted on the top of the cover body (102); a one-way valve structure (203) is mounted on the top of the tube body (201); the one-way valve structure (203) comprises a valve body (2031), a spring (2032), a valve core (2033), an inlet (2034) and an outlet (2035); the valve body (2031) is mounted on the top of the tube body (201); the bottom of the valve body (2031) is provided with an outlet (2035); the top of the valve body (2031) is provided with an inlet (2034); a valve core (2033) is mounted inside the valve body (2031); a spring (2032) is mounted on the bottom of the valve core (2033); a filter box (202) is mounted on the top of the one-way valve structure (203); and a cover body (204) is mounted on one end of the filter box (202).

2. A medical breathing mask for preventing gas backflow according to claim 1, characterized in that: Both sides of the mounting block (104) are equipped with a binding structure (4), the binding structure (4) comprising a first elastic band (401), a second elastic band (402), a first Velcro (403), a second Velcro (404) and a rotating shaft (405), the rotating shaft (405) being installed on both sides of the cover body (102), the rotating shaft (405) being installed on both sides of the mounting block (104), the first elastic band (401) being installed on one side of the rotating shaft (405), the second elastic band (402) being installed on the other side of the rotating shaft (405), the second Velcro (404) being installed at the bottom end of the second elastic band (402), and the first Velcro (403) being installed at the top end of the first elastic band (401).

3. A medical breathing mask for preventing gas backflow according to claim 1, characterized in that: A clamping block is provided on one side of the cover body (204), a clamping slot is provided on one side of the filter box (202), and the cover body (204) and the filter box (202) form a clamping mechanism.

4. A medical breathing mask for preventing gas backflow according to claim 1, characterized in that: A filter screen (205) is installed at one end of the cover body (204), and the outer diameter of the filter screen (205) is smaller than the inner diameter of the filter box (202).

5. A medical breathing mask for preventing gas backflow according to claim 1, characterized in that: The spring (2032) is in a spiral shape, and the spring (2032) and the valve core (2033) form an elastic connection.

6. A medical breathing mask for preventing gas backflow according to claim 1, characterized in that: A connection structure (3) is installed at the top of the air intake structure (2), and the connection structure (3) comprises a threaded block (301), a connection block (302), a connection pipe (303) and a rotating shaft (304). The threaded block (301) is installed at the top of the air intake structure (2), the top of the threaded block (301) is movably connected to the connection block (302), and the top of the connection block (302) is installed with a rotating shaft (304), and the top of the rotating shaft (304) is installed with a connection pipe (303).

7. A medical breathing mask for preventing gas backflow according to claim 6, characterized in that: External threads are evenly arranged on the outer wall of the threaded block (301), and internal threads that cooperate with the external threads are evenly arranged on the inner wall of the connecting block (302). The threaded block (301) and the connecting block (302) are connected by threads.

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