A breathing mask for gastroscopy

Abstract

The present invention relates to a breathing mask for gastroscopy, which belongs to the technical field of medical devices. It solves the problem in the prior art that when respiratory depression occurs, the mask cannot be sealed, and then a positive pressure oxygen input environment cannot be established, which causes great risks to the patient. The present invention includes a mask body, a constraint unit, a first air bag, an inflation unit and a gas cylinder. The constraint unit, the first air bag and the inflation unit are all arranged on the mask body. The gas cylinder can be connected to the inflation unit. The constraint unit is used to connect the mask body to the patient's face. The mask body is used to cover the patient's mouth and nose. A gastroscope through hole is opened on the mask body. The inflation unit of the breathing mask of the present invention can inflate the first air bag so that the first air bag is connected to the outer wall of the gastroscope and the gastroscope through hole is blocked. When respiratory depression occurs, there is no need to take out the gastroscope, and the mask can be quickly sealed to establish a positive pressure oxygen input environment, and the patient can be given first aid, which greatly saves first aid time.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a breathing mask used for gastroscopy. Background Art

[0002] The use of painless gastroscopy improves the comfort of patients and facilitates gastroscopy operation. Usually, the user uses a special mask for gastroscopy, and uses the oxygen tube on the mask to deliver normal-pressure oxygen to the patient, and the patient retains spontaneous breathing. The gastroscopy mask has a through hole specifically for the gastroscope, and the hole diameter is larger than the outer diameter of the gastroscope to facilitate the entry and exit of the gastroscope. However, in the event of respiratory depression, the mask cannot be sealed, and then a positive-pressure oxygen input environment cannot be established to provide first aid to the patient. At this time, the gastroscope needs to be removed from the patient's digestive tract and mouth, and then the through hole of the gastroscope is blocked, and pressurized oxygen is given to the patient. After the hypoxic symptoms are relieved, the gastroscope is removed again, which is very time-consuming and poses a great risk to the patient.

[0003] Therefore, there is an urgent need for a breathing mask for gastroscopy to solve the problem in the prior art that when respiratory depression occurs, the mask cannot be sealed and a positive pressure oxygen input environment cannot be established, which poses a great risk to the patient. Summary of the invention

[0004] In view of the above analysis, an embodiment of the present invention aims to provide a breathing mask for gastroscopy, which solves the problem in the prior art that when respiratory depression occurs, the mask cannot be sealed and a positive pressure oxygen input environment cannot be established, which poses a great risk to the patient.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A breathing mask for gastroscopy, comprising a mask body, a constraint unit, a first air bag, an inflation unit and a gas cylinder, wherein the constraint unit, the first air bag and the inflation unit are all arranged on the mask body, the gas cylinder can be connected to the inflation unit, the constraint unit is used to connect the mask body to the face of a patient, the mask body is used to cover the mouth and nose of the patient, and a gastroscope through hole is opened on the mask body;

[0007] The outer wall of the first airbag is connected to the inner wall of the through hole of the gastroscope; the inflation unit can inflate the first airbag so that the inner wall of the first airbag is connected to the gastroscope, thereby blocking the through hole of the gastroscope and preventing oxygen from overflowing from the through hole of the gastroscope into the cover body;

[0008] The inflation unit includes an inflation seat, an inflation hole, a puncture needle, a puncture needle flange, a puncture needle spring and an air guide tube. The inflation seat is connected to the cover body, the inflation hole is arranged on the inflation seat, the puncture needle is arranged in the inflation hole and can slide along the inflation hole, the puncture needle flange is fixedly arranged on the outer wall of the puncture needle, the air guide tube is connected to the puncture needle, the puncture needle spring is sleeved on the puncture needle, one end of the puncture needle spring is connected to the puncture needle flange, and the other end of the puncture needle spring is connected to the inflation seat, and the puncture needle spring is used to push the puncture needle flange to make the puncture needle slide out of the inflation hole and pierce the gas cylinder, so that the gas in the gas cylinder enters the first airbag through the puncture needle and the air guide tube, thereby inflating the first airbag.

[0009] Furthermore, it also includes a second airbag, which is arranged at the opening of the mask body and is a strip-shaped airbag; the second airbag is connected to the air duct, and the gas in the gas cylinder can enter the second airbag through the air duct, and the second airbag can be inflated to block the gap between the opening of the mask body and the patient's face to prevent oxygen leakage from the gap.

[0010] Furthermore, it also includes an air delivery pipe, which includes a pipe body and a locking protrusion, and the locking protrusion is arranged on the outer wall of the pipe body.

[0011] Furthermore, the inflation unit also includes a gas supply through hole and a locking flange, and the gas supply through hole and the locking flange are both arranged on the inflation seat, and a locking groove is formed between the locking flange and the inflation seat; the tube body can be connected to the inflation seat and supply oxygen to the cover body through the gas supply through hole; the locking protrusion can be connected to the locking groove, and the locking flange can prevent the locking protrusion from axially disengaging from the locking groove, thereby preventing the tube body from disengaging from the inflation unit.

[0012] Furthermore, the inflation unit also includes a limiting rod, which is arranged on the inflation seat, and the limiting rod includes a first limiting hole and a second limiting hole, the puncture needle can be connected to the first limiting hole, the inner diameter of the first limiting hole is smaller than the outer diameter of the puncture needle flange; the inner diameter of the second limiting hole is greater than or equal to the outer diameter of the puncture needle flange, the puncture needle flange can be connected to the second limiting hole and can slide in the second limiting hole, and the puncture needle can move toward the direction of the gas cylinder.

[0013] Furthermore, the inflation unit also includes a safety rod, which is arranged on the inflation seat; the safety rod includes a rod body and a notch, and the notch is arranged on the rod body; when the limit rod is connected to the rod body, the limit rod cannot move, thereby preventing the puncture needle from moving toward the direction of the gas cylinder; when the limit rod is connected to the notch, the limit rod can move toward the direction of the puncture needle, and the puncture needle can move toward the direction of the gas cylinder.

[0014] Furthermore, the inflation unit also includes a safety spring, one end of the safety spring is connected to the rod body, and the other end of the safety spring is connected to the inflation seat, and the safety spring is used to keep the safety rod connected to the limit rod; one end of the rod body is arranged on the locking groove, and when the locking protrusion is connected to the locking groove, the locking protrusion can press the rod body toward the inflation seat, so that the limit rod is separated from the rod body.

[0015] Furthermore, the restraint unit includes a first headband and a second headband, one end of the first headband and the second headband are respectively connected to the cover body, and the first headband and the second headband are used to pull the cover body so that the cover body is connected to the patient's face.

[0016] Furthermore, it also includes a locking unit, which includes a locking seat, a rotating wheel, a support arm and an extrusion rod, the locking seat is fixedly connected to the first headband, the rotating wheel is rotatably connected to one end of the locking seat, the other end of the locking seat is rotatably connected to one end of the support arm, the other end of the support arm is connected to the extrusion rod, the second headband can be connected to the outer wall of the rotating wheel; the extrusion rod can be connected to the second headband and squeeze the second headband and the rotating wheel in the direction of the rotating wheel, forcing the rotating wheel to stop rotating.

[0017] Furthermore, the locking unit also includes a locking spring, one end of which is connected to the locking seat, and the other end of which is connected to the support arm, and the locking spring is used to enable the extrusion rod to keep pushing the second headband toward the rotating wheel.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] (1) The inflation unit of the breathing mask of the present invention can inflate the first airbag, so that the first airbag is connected to the outer wall of the gastroscope and the through hole of the gastroscope is blocked. When respiratory depression occurs, the mask can be quickly sealed without removing the gastroscope to establish a positive pressure oxygen input environment and provide first aid to the patient, which greatly saves first aid time;

[0020] (2) The gas cylinder of the present invention is a high-pressure gas cylinder, and the piercing module can pierce the protective cover of the gas cylinder, so that the high-pressure gas of the gas cylinder enters the first air bag through the puncture needle, thereby quickly inflating the first air bag and quickly blocking the through hole of the gastroscope;

[0021] (3) When the locking protrusion of the present invention is connected to the locking groove, the locking protrusion can press the rod body so that the limiting rod is separated from the rod body; the user can make the puncture needle pierce the gas cylinder; when the gas pipe is separated from the inflation unit, the safety rod provides insurance for the limiting rod to prevent the user from accidentally touching the limiting rod and releasing the puncture needle from being limited, thereby preventing the first airbag from being inflated;

[0022] (4) When the second headband of the present invention is pulled toward the cover body, the squeezing rod can squeeze the second headband and the rotating wheel toward the rotating wheel, forcing the rotating wheel to stop rotating, thereby fixing the distance between the cover body and the rotating wheel, preventing the total length of the constraint unit from being restricted, and preventing the cover body from being separated from the patient's face; when the second headband is pulled toward the direction away from the locking assembly, the squeezing rod can move away from the rotating wheel under the action of friction, and the rotating wheel can rotate, thereby shortening the distance between the cover body and the rotating wheel, and the second headband can pull the cover body toward the patient's face, thereby enhancing the fit between the cover body and the patient's face.

[0023] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can become obvious from the description or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the breathing mask of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the gas pipeline;

[0027] Figure 3 It is a schematic diagram of the longitudinal section structure of the inflation unit;

[0028] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0029] Figure 5 It is a schematic diagram of the overall structure of the limit rod and the safety rod;

[0030] Figure 6It is a schematic diagram of the exploded structure of the limit rod and the safety rod;

[0031] Figure 7 It is a schematic diagram of the overall structure of the locking unit.

[0032] Reference numerals:

[0033] 1-hood; 2-restraint unit; 3-first airbag; 4-inflation unit; 5-air pipe; 6-gas cylinder; 7-second airbag; 8-locking unit; 21-first headband; 22-second headband; 51-tube body; 52-locking protrusion; 81-locking seat; 82-rotating wheel; 83-support arm; 84-squeezing rod; 85-locking spring; 401-inflation seat; 402-air delivery through hole; 403-locking flange; 404-inflation hole; 405-puncture needle; 406-puncture needle flange; 407-puncture needle spring; 408-air guide tube; 409-limiting rod; 410-safety rod; 411-safety spring; 412-sealing ring; 4091-first limiting hole; 4092-second limiting hole; 4101-rod body; 4102-notch. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0035] A specific embodiment of the present invention, as Figure 1 As shown, a breathing mask for gastroscopy (hereinafter referred to as the breathing mask) is disclosed, including a mask body 1, a constraint unit 2, a first airbag 3 and an inflation unit 4. The constraint unit 2, the first airbag 3 and the inflation unit 4 are all arranged on the mask body 1. The constraint unit 2 is used to connect the mask body 1 with the patient's face. The mask body 1 is used to cover the patient's mouth and nose. A gastroscope through hole is opened on the mask body 1. The first airbag 3 is arranged on the inner wall of the gastroscope through hole. The inflation unit 4 can inflate the first airbag 3 so that the first airbag 3 is connected to the outer wall of the gastroscope to block the gastroscope through hole. When respiratory depression occurs, there is no need to remove the gastroscope, and the mask can be sealed to establish a positive pressure oxygen input environment, and the patient can be given first aid, which greatly saves the first aid time.

[0036] Preferably, the first airbag 3 is an annular elastic airbag, and the outer wall of the first airbag 3 is connected to the inner wall of the through hole of the gastroscope. After inflation, the inner diameter of the first airbag 3 can be reduced, and the inner wall of the first airbag 3 can be connected to the gastroscope, thereby blocking the through hole of the gastroscope and preventing oxygen from overflowing from the through hole of the gastroscope to the cover body 1, thereby sealing the cover body 1.

[0037] Preferably, if Figure 2As shown, the breathing mask of this embodiment also includes an air supply pipe 5, which includes a tube body 51 and a locking protrusion 52. The locking protrusion 52 is arranged on the outer wall of the tube body 51. One end of the tube body 51 can be connected to the inflation unit 4, and the other end of the tube body 51 can be connected to the ventilator, so as to supply oxygen to the mask body 1; the locking protrusion 52 can be connected to the inflation unit 4 to prevent the tube body 51 from being separated from the inflation unit 4.

[0038] Preferably, if Figure 3 As shown, the inflatable unit 4 includes an inflatable seat 401, an air delivery hole 402 and a locking flange 403. The inflatable seat 401 is connected to the cover body 1. The air delivery hole 402 and the locking flange 403 are both arranged on the inflatable seat 401. A locking groove is formed between the locking flange 403 and the inflatable seat 401. The tube body 51 can be connected to the inflatable seat 401 and supply oxygen to the cover body 1 through the air delivery hole 402; the locking protrusion 52 can be connected to the locking groove, and the locking flange 403 can prevent the locking protrusion 52 from axially disengaging from the locking groove, thereby preventing the tube body 51 from disengaging from the inflatable unit 4.

[0039] In certain optional embodiments, the inflation unit 4 also includes an inflation hole 404 and an inflation pipeline (not shown in the figure), the inflation hole 404 is arranged on the inflation seat 401, one opening of the inflation hole 404 is connected to the gas source, and the other opening of the inflation hole 404 is connected to the inflation pipeline, and the inflation pipeline is connected to the first airbag 3, so that the gas in the gas source can be input into the first airbag 3 through the inflation hole 404, so that the first airbag 3 can be inflated.

[0040] Preferably, if Figure 1 As shown, in order to quickly inflate the first airbag 3, the gas source is the gas cylinder 6, and the gas cylinder 6 is a high-pressure gas cylinder. The gas cylinder 6 can be filled with compressed gas, such as compressed air, carbon dioxide or nitrogen, and the pressure of the compressed air is 5-7Mpa.

[0041] Preferably, if Figure 3 and Figure 4 As shown, in order to quickly open the gas cylinder 6, the inflation unit 4 also includes a puncture module, which includes a puncture needle 405, a puncture needle flange 406 and a puncture needle spring 407. The puncture needle 405 is arranged in the inflation hole 404 and can slide along the inflation hole 404. The puncture needle flange 406 is fixedly arranged on the outer wall of the puncture needle 405. The puncture needle spring 407 is sleeved on the puncture needle 405. One end of the puncture needle spring 407 is connected to the puncture needle flange 406, and the other end of the puncture needle spring 407 is connected to the inflation seat 401. The puncture needle spring 407 is used to push the puncture needle flange 406, and make the puncture needle 405 slide out of the inflation hole 404 and pierce the protective cover of the gas cylinder 6, so that the gas in the gas cylinder 6 can enter the first airbag 3 through the puncture needle 405, thereby quickly inflating the first airbag 3.

[0042] Preferably, the inflation circuit includes an air guide tube 408 , which is connected to the puncture needle 405 , and the gas in the gas cylinder 6 can enter the first airbag 3 through the air guide tube 408 .

[0043] Preferably, the inflation unit 4 further comprises a limiting rod 409, which is disposed on the inflation seat 401. The limiting rod 409 is used to control the movement of the puncture needle 405, allowing or preventing the puncture needle 405 from piercing the protective cover of the gas cylinder 6.

[0044] Preferably, if Figure 5 and Figure 6 As shown, the limiting rod 409 includes a first limiting hole 4091 and a second limiting hole 4092, and the puncture needle 405 can be connected to the first limiting hole 4091. The inner diameter of the first limiting hole 4091 is smaller than the outer diameter of the puncture needle flange 406. The first limiting hole 4091 can prevent the puncture needle flange 406 from moving toward the limiting rod 409, thereby preventing the puncture needle 405 from moving toward the gas cylinder 6. The inner diameter of the second limiting hole 4092 is greater than or equal to the outer diameter of the puncture needle flange 406. The puncture needle flange 406 can be connected to the second limiting hole 4092 and can slide in the second limiting hole 4092, and the puncture needle 405 can move toward the gas cylinder 6. When in use, the puncture needle 405 is connected to the first limiting hole 4091, and the user presses the limiting rod 409 toward the inflation seat 401, and the puncture needle flange 406 is connected to the second limiting hole 4092 and slides in the second limiting hole 4092; the puncture needle 405 is pushed by the puncture needle spring 407, slides out of the inflation hole 404, and pierces the protective cover of the gas cylinder 6.

[0045] Preferably, in order to prevent the user from accidentally touching the limit rod 409 and releasing the limit of the puncture needle 405, Figure 3 and Figure 4 As shown, the inflatable unit 4 further includes a safety rod 410 and a safety spring 411, both of which are arranged on the inflatable seat 401. The safety rod 410 is used to prevent the limit rod 409 from sliding on the inflatable seat 401. One end of the safety spring 411 is connected to the safety rod 410, and the other end of the safety spring 411 is connected to the inflatable seat 401, and the safety spring 411 is used to keep the safety rod 410 connected to the limit rod 409.

[0046] Preferably, if Figure 5 and Figure 6 As shown, the safety lever 410 includes a rod body 4101 and a notch 4102, and the notch 4102 is arranged on the rod body 4101. When the limiting rod 409 is connected to the rod body 4101, the limiting rod 409 cannot move, preventing the puncture needle 405 from moving toward the gas cylinder 6; when the limiting rod 409 is connected to the notch 4102, the limiting rod 409 can move toward the puncture needle 405, and the puncture needle 405 can move toward the gas cylinder 6.

[0047] Preferably, if Figure 3 and Figure 4 As shown, one end of the rod body 4101 is connected to the safety spring 411, and the other end of the rod body 4101 is a free end, and the end of the free end is arranged on the locking groove. When the locking protrusion 52 is connected to the locking groove, the locking protrusion 52 can press the rod body 4101 toward the inflation seat 401, so that the limiting rod 409 is separated from the rod body 4101; the user can press the limiting rod 409 toward the inflation seat 401 to connect the limiting rod 409 with the notch 4102; when the air supply pipe 5 is separated from the inflation unit 4, the safety rod 410 cannot move, and the rod body 4101 remains connected to the limiting rod 409, thereby providing insurance for the limiting rod 409 to prevent the user from accidentally touching the limiting rod 409 and releasing the limit of the puncture needle 405.

[0048] Preferably, the gas filling unit 4 further comprises a sealing ring 412, which is fixedly arranged on the outer wall of the puncture needle 405. When the puncture needle 405 punctures the gas cylinder 6, the sealing ring 412 can be connected with the gas filling hole 404 and seal the gap between the gas filling hole 404 and the puncture needle 405, thereby preventing gas from escaping from the gap between the gas filling hole 404 and the puncture needle 405, and enhancing the air tightness of the gas filling unit 4.

[0049] Preferably, if Figure 1 As shown, in order to improve the airtightness between the mask body 1 and the patient's face, the breathing mask of this embodiment further includes a second airbag 7, which is arranged at the opening of the mask body 1 and is a strip-shaped airbag. The second airbag 7 is connected to the air guide tube 408, and the gas in the gas cylinder 6 can enter the second airbag 7 through the air guide tube 408, and the second airbag 7 can be inflated to block the gap between the opening of the mask body 1 and the patient's face to prevent oxygen from leaking from the gap.

[0050] Preferably, if Figure 1 As shown, in order to improve the fit between the mask body 1 and the patient's face, the respiratory mask of this embodiment further includes a locking unit 8, which is arranged on the constraint unit 2. The locking unit 8 is used to shorten the constraint unit 2 and prevent the constraint unit 2 from stretching, thereby improving the fit between the mask body 1 and the patient's face and preventing oxygen from leaking from the gap between the opening of the mask body 1 and the patient's face.

[0051] Preferably, if Figure 7 As shown, the restraint unit 2 includes a first headband 21 and a second headband 22, one end of which is respectively connected to the mask body 1, and the first headband 21 and the second headband 22 are used to pull the mask body 1 so that the mask body 1 is connected to the patient's face.

[0052] Preferably, the locking unit 8 comprises a locking seat 81, a rotating wheel 82 and a locking assembly, wherein the locking seat 81 is fixedly connected to the first headband 21, and the rotating wheel 82 and the locking assembly are respectively rotatably connected to both ends of the locking seat 81. The second headband 22 can be connected to the outer wall of the rotating wheel 82, and by pulling the second headband 22, the rotating wheel 82 can be rotated around the connecting axis with the locking seat 81. The locking assembly is used to keep the second headband 22 connected to the rotating wheel 82 and prevent the rotating wheel 82 from rotating.

[0053] Preferably, the locking assembly includes a support arm 83 and an extrusion rod 84, one end of the support arm 83 is rotatably connected to the locking seat 81, and the extrusion rod 84 is connected to the other end of the support arm 83, the extrusion rod 84 can be connected to the second headband 22, and when the second headband 22 is pulled toward the cover body 1, the extrusion rod 84 can, under the action of friction, squeeze the second headband 22 and the rotating wheel 82 in the direction of the rotating wheel 82, forcing the rotating wheel 82 to stop rotating, thereby fixing the distance between the cover body 1 and the rotating wheel 82, preventing the total length of the constraint unit 2 from being reduced, and preventing the cover body 1 from being separated from the patient's face; when the second headband 22 is pulled in the direction away from the locking assembly, the extrusion rod 84 can, under the action of friction, move in the direction away from the rotating wheel 82, and the rotating wheel 82 can rotate, thereby shortening the distance between the cover body 1 and the rotating wheel 82, and the second headband 22 can pull the cover body 1 toward the patient's face, thereby enhancing the fit between the cover body 1 and the patient's face.

[0054] Preferably, the locking assembly also includes a locking spring 85, one end of which is connected to the locking seat 81, and the other end of which is connected to the support arm 83. The locking spring 85 is used to enable the squeezing rod 84 to keep pushing the second headband 22 toward the rotating wheel 82. When the second headband 22 stops being pulled away from the locking assembly, the locking spring 85 can immediately pull the support arm 83, and the squeezing rod 84 forces the rotating wheel 82 to stop rotating.

[0055] Compared with the prior art, the inflation unit 4 of the breathing mask provided in this embodiment can inflate the first airbag 3, so that the first airbag 3 is connected to the outer wall of the gastroscope and the through hole of the gastroscope is blocked. When respiratory depression occurs, there is no need to remove the gastroscope, and the mask can be quickly sealed to establish a positive pressure oxygen input environment and provide first aid to the patient, which greatly saves first aid time; the gas cylinder 6 is a high-pressure gas cylinder, and the piercing module can pierce the protective cover of the gas cylinder 6, so that the high-pressure gas of the gas cylinder 6 enters the first airbag 3 through the puncture needle 405, thereby quickly inflating the first airbag 3 and quickly blocking the through hole of the gastroscope; when the locking protrusion 52 is connected to the locking groove, the locking protrusion 52 can press the rod body 4101 in the direction of the inflation seat 401, so that the limit rod 409 is separated from the rod body 4101; the user can make the puncture needle 405 pierce the gas cylinder 6; when the air supply pipe 5 is separated from the inflation unit 4, The safety rod 410 provides insurance for the limit rod 409 to prevent the user from accidentally touching the limit rod 409 and releasing the limit of the puncture needle 405, thereby preventing the first airbag 3 from being inflated; when the second headband 22 is pulled toward the cover body 1, the squeezing rod 84 can squeeze the second headband 22 and the rotating wheel 82 in the direction of the rotating wheel 82 under the action of friction, forcing the rotating wheel 82 to stop rotating, thereby fixing the distance between the cover body 1 and the rotating wheel 82, preventing the total length of the constraint unit 2 from being increased, and preventing the cover body 1 from being separated from the patient's face; when the second headband 22 is pulled in the direction away from the locking assembly, the squeezing rod 84 can move in the direction away from the rotating wheel 82 under the action of friction, and the rotating wheel 82 can rotate, thereby shortening the distance between the cover body 1 and the rotating wheel 82, and the second headband 22 can pull the cover body 1 toward the patient's face, thereby enhancing the fit between the cover body 1 and the patient's face.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A breathing mask for gastroscopy, characterized in that: The invention comprises a mask body (1), a restraining unit (2), a first air bag (3), an inflation unit (4), an air delivery pipe (5) and a gas cylinder (6), wherein the restraining unit (2), the first air bag (3) and the inflation unit (4) are all arranged on the mask body (1), the gas cylinder (6) can be connected to the inflation unit (4), the restraining unit (2) is used to connect the mask body (1) to the face of a patient, the mask body (1) is used to cover the mouth and nose of the patient, and a through hole for a gastroscope is provided on the mask body (1); The outer wall of the first air bag (3) is connected to the inner wall of the through hole of the gastroscope; the inflation unit (4) is capable of inflating the first air bag (3) so that the inner wall of the first air bag (3) is connected to the gastroscope, thereby blocking the through hole of the gastroscope and preventing oxygen from overflowing from the through hole of the gastroscope into the cover body (1); The inflation unit (4) comprises an inflation seat (401), an inflation hole (404), a puncture needle (405), a puncture needle flange (406), a puncture needle spring (407) and an air guide tube (408); the inflation seat (401) is connected to the cover body (1); the inflation hole (404) is arranged on the inflation seat (401); the puncture needle (405) is arranged in the inflation hole (404) and can slide along the inflation hole (404); the puncture needle flange (406) is fixedly arranged on the outer wall of the puncture needle (405); and the air guide tube (408) is connected to the puncture needle (405). The puncture needle spring (407) is sleeved on the puncture needle (405), one end of the puncture needle spring (407) is connected to the puncture needle flange (406), and the other end of the puncture needle spring (407) is connected to the inflation seat (401), and the puncture needle spring (407) is used to push the puncture needle flange (406) to make the puncture needle (405) slide out of the inflation hole (404) and pierce the gas cylinder (6), so that the gas in the gas cylinder (6) enters the first airbag (3) through the puncture needle (405) and the air guide tube (408), thereby inflating the first airbag (3); The gas delivery pipe (5) comprises a pipe body (51) and a locking protrusion (52), wherein the locking protrusion (52) is arranged on the outer wall of the pipe body (51); The inflation unit (4) further comprises an air supply through hole (402), a locking flange (403), a limiting rod (409), a safety rod (410) and a safety spring (411); the air supply through hole (402) and the locking flange (403) are both arranged on the inflation seat (401); a locking groove is formed between the locking flange (403) and the inflation seat (401); the locking protrusion (52) can be connected to the locking groove; the locking flange (403) can prevent the locking protrusion (52) from axially separating from the locking groove, thereby preventing the tube body (51) from separating from the inflation unit (4); the tube body (51) can be connected to the inflation seat (401) and supply oxygen to the cover body (1) through the air supply through hole (402); The limiting rod (409) is arranged on the inflation seat (401), and the limiting rod (409) includes a first limiting hole (4091) and a second limiting hole (4092). The puncture needle (405) can be connected to the first limiting hole (4091), and the inner diameter of the first limiting hole (4091) is smaller than the outer diameter of the puncture needle flange (406); the inner diameter of the second limiting hole (4092) is greater than or equal to the outer diameter of the puncture needle flange (406), and the puncture needle flange (406) can be connected to the second limiting hole (4092) and can slide in the second limiting hole (4092), and the puncture needle (405) can move toward the gas cylinder (6); The safety rod (410) is arranged on the inflation seat (401); the safety rod (410) comprises a rod body (4101) and a notch (4102), and the notch (4102) is arranged on the rod body (4101); when the limiting rod (409) is connected to the rod body (4101), the limiting rod (409) cannot move, thereby preventing the puncture needle (405) from moving toward the gas cylinder (6); when the limiting rod (409) is connected to the notch (4102), the limiting rod (409) can move toward the puncture needle (405), and the puncture needle (405) can move toward the gas cylinder (6); One end of the safety spring (411) is connected to the rod body (4101), and the other end of the safety spring (411) is connected to the inflation seat (401). The safety spring (411) is used to keep the safety rod (410) connected to the limit rod (409). One end of the rod body (4101) is arranged on the locking groove. When the locking protrusion (52) is connected to the locking groove, the locking protrusion (52) can press the rod body (4101) in the direction of the inflation seat (401), so that the limit rod (409) is separated from the rod body (4101).

2. The breathing mask for gastroscopy according to claim 1, characterized in that: The invention also comprises a second air bag (7), which is arranged at the opening of the mask body (1), and is a strip-shaped air bag; the second air bag (7) is connected to the air guide tube (408), and the gas in the gas cylinder (6) can enter the second air bag (7) through the air guide tube (408); the second air bag (7) can be inflated to block the gap between the opening of the mask body (1) and the patient's face, thereby preventing oxygen from leaking from the gap.

3. The breathing mask for gastroscopy according to claim 1, characterized in that: The restraint unit (2) comprises a first headband (21) and a second headband (22), one end of the first headband (21) and the second headband (22) are respectively connected to the mask body (1), and the first headband (21) and the second headband (22) are used to pull the mask body (1) so that the mask body (1) is connected to the patient's face.

4. The breathing mask for gastroscopy according to claim 3, characterized in that: The invention also comprises a locking unit (8), wherein the locking unit (8) comprises a locking seat (81), a rotating wheel (82), a support arm (83) and an extrusion rod (84); the locking seat (81) is fixedly connected to the first headband (21); the rotating wheel (82) is rotatably connected to one end of the locking seat (81); the other end of the locking seat (81) is rotatably connected to one end of the support arm (83); the other end of the support arm (83) is connected to the extrusion rod (84); the second headband (22) can be connected to the outer wall of the rotating wheel (82); the extrusion rod (84) can be connected to the second headband (22) and squeeze the second headband (22) and the rotating wheel (82) in the direction of the rotating wheel (82), thereby forcing the rotating wheel (82) to stop rotating.

5. The breathing mask for gastroscopy according to claim 4, characterized in that: The locking unit (8) further comprises a locking spring (85), one end of the locking spring (85) being connected to the locking seat (81), and the other end of the locking spring (85) being connected to the support arm (83), the locking spring (85) being used to enable the squeezing rod (84) to keep pushing the second headband (22) in the direction of the rotating wheel (82).

Images