Anaesthetic mask capable of adjusting inhalation volume

Abstract

The utility model discloses an anaesthetic mask capable of adjusting inhalation volume. The anaesthetic mask comprises a mask shell and a flow regulation and control mechanism, a conveying pipe is arranged on the front wall of the housing in a penetrating mode, an anesthesia connector and an oxygen supply connector are arranged at the front end of the inner wall of the conveying pipe in a penetrating mode, first barrel shells are arranged on the outer sides of the anesthesia connector and the oxygen supply connector, and second barrel shells are arranged in the first barrel shells through first telescopic columns which are evenly distributed; arc-shaped extrusion plates which are uniformly distributed are arranged in the barrel shells II through telescopic columns II; according to the anesthetic mask capable of adjusting the inhalation volume, the gas flowing area of the anesthetic mask can be adjusted and controlled through the transmission element, then the inhalation gas flow is adjusted and controlled, medical staff do not need to control medical gas conveying equipment, use is convenient, and the anesthetic mask is high in practicability. And meanwhile, the device assists in extruding and fixing the sleeving overlapping part between the joint and the external gas pipeline through the elastic force of the spring, so that the falling and separating phenomena between the joint and the external gas pipeline are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to an anesthesia mask with adjustable inhalation volume. Background Art

[0002] When doctors in hospitals perform major operations on patients, they often need to anesthetize the patients to relieve pain. Inhalation anesthesia is the most common anesthesia method for general anesthesia in medicine. An anesthesia mask is needed to assist in anesthetizing patients. When some anesthesia masks are used, medical staff will respectively connect and fix the interfaces of the anesthesia mask with the corresponding oxygen tube and anesthetic gas delivery tube, and then fit and fix the anesthesia mask to the patient's face with a tightening belt. Then, oxygen and anesthetic gas are delivered to the anesthesia mask through pipelines. When regulating the inhaled gas flow, medical staff need to regulate the delivery flow of the anesthetic gas delivery equipment and the oxygen supply equipment, so as to achieve inhaled gas flow regulation. However, this method requires medical staff to move back and forth, and the operation is cumbersome. At the same time, the oxygen tube and the anesthetic gas delivery tube of the device are both connected to the interface of the anesthesia mask, which is prone to fall off due to interference from gas delivery pressure and external factors in the later stage. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an anesthesia mask with adjustable inhalation volume. The device can regulate the gas flow area of ​​the anesthesia mask through a transmission element, and then regulate the inhaled gas flow rate. There is no need for medical staff to operate the medical gas delivery equipment, and it is easy to use. At the same time, the device uses spring elastic force to assist in squeezing and fixing the overlapping parts between the joint and the external gas pipeline to avoid falling off and separation between the two, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anesthesia mask with adjustable inhalation volume, comprising a cover shell and a flow control mechanism;

[0005] Cover shell: a delivery pipe is penetrated through the front wall thereof, an anesthesia joint and an oxygen supply joint are penetrated through the front end of the inner wall of the delivery pipe respectively, a cylinder shell 1 is provided on the outside of the anesthesia joint and the oxygen supply joint, a cylinder shell 2 is provided inside the cylinder shell 1 through evenly distributed telescopic columns 1, and an evenly distributed arc-shaped extrusion plate is provided inside the cylinder shell 2 through telescopic columns 2;

[0006] Flow control mechanism: It is arranged inside the delivery tube. The device can control the gas flow area of ​​the anesthesia mask through the transmission element, and then control the inhaled gas flow. There is no need for medical staff to operate the medical gas delivery equipment. It is easy to use. At the same time, the device uses the spring force to assist in squeezing and fixing the overlapping parts between the joint and the external gas pipeline to avoid falling off and separation between the two.

[0007] Furthermore, the flow control mechanism includes a semicircular baffle, a rotating shaft 1, a semicircular rotating baffle, a worm wheel, a rotating shaft 2 and a worm. The semicircular baffle is arranged on the inner wall of the delivery tube. The front side of the semicircular baffle is rotatably connected to the rotating shaft 1 through a bearing. The rotating shaft 1 is located at the axial center of the delivery tube. A semicircular rotating baffle is provided in the middle of the rotating shaft 1. The rear side of the semicircular rotating baffle contacts the front side of the semicircular baffle. A worm wheel is provided at the front end of the rotating shaft 1. The inner wall of the delivery tube is rotatably connected to the rotating shaft 2 through a bearing. A worm is provided at the lower end of the rotating shaft 2. The worm is meshingly connected to the worm wheel to control the gas flow of the anesthesia mask.

[0008] Furthermore, the flow control mechanism also includes a control knob, which is arranged at the upper end of the second rotating shaft to facilitate the application of power to the anesthesia mask gas flow control.

[0009] Furthermore, a hollow buffer plate is provided in the middle of the inner wall of the delivery pipe, which reduces the flow area of ​​the two gases by reducing the diameter of the pipe, thereby causing them to flow in a mixed manner.

[0010] Furthermore, evenly distributed springs 1 are provided between the cylinder shell 1 and the adjacent cylinder shell 2, and the springs 1 are movably sleeved with the outer ends of the adjacent telescopic columns 1, so that the cylinder shell 2 is automatically elastically reset after being compressed by the elastic force of the springs.

[0011] Furthermore, two evenly distributed springs are provided between the arc-shaped extrusion plate and the adjacent cylinder shell two. The two springs are movably connected to the outer ends of the adjacent telescopic columns two, and the overlapping parts of the joint and the external gas pipeline are assisted in being squeezed and fixed by the compression force of the springs.

[0012] Furthermore, a filter is provided at the rear end of the delivery tube to filter out impurities from the gas in the anesthesia mask again.

[0013] Furthermore, the rear side of the cover shell is provided with evenly distributed rope threading holes, which facilitate the external elastic band to be connected to the anesthesia mask itself and fixed on the patient's face.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the anesthesia mask with adjustable inhalation volume has the following advantages:

[0015] 1. Press the second cylinder shell on the oxygen supply joint to make it go deep into the adjacent cylinder shell one. The telescopic end of the telescopic column one and the spring one will shrink, and the connection of the oxygen supply joint will be exposed to the outside. Then, the joint of the oxygen supply pipe will be sleeved to the exposed part of the oxygen supply joint. Then, press the joint of the oxygen supply pipe to keep its position unchanged. At the same time, release the pressure applied to the second cylinder shell. The cylinder shell two indirectly drives the arc extrusion plate to move toward the joint of the oxygen supply pipe through the compression force of the spring one. The arc surface of the arc extrusion plate contacts the outer edge of the joint of the oxygen supply pipe. As the second cylinder shell continues to move, The arc-shaped extrusion plate moves along the outer side of the joint of the oxygen supply tube, the telescopic end of the telescopic column 2 and the spring 2 contract, and the compression elastic force of the spring 2 squeezes the overlapping part of the joint between the oxygen supply connector and the oxygen supply tube to prevent it from falling off later. Subsequently, the anesthesia connector is connected to the external anesthesia delivery tube through the same principle. The anesthesia mask with adjustable inhalation volume uses the spring elastic force to assist in squeezing and fixing the overlapping part of the joint between the connector and the external gas pipeline to avoid falling off and separation between the two.

[0016] 2. When adjusting the inhalation volume of the anesthesia mask, turn the control knob to drive the second shaft to rotate, the second shaft drives the worm to rotate, the worm is connected through meshing so that the worm wheel drives the first shaft to rotate, the first shaft drives the semicircular rotating baffle to rotate, and during the rotation of the semicircular rotating baffle around the axis of the delivery tube, the gas flow area in the delivery tube is adjusted by complementary cooperation with the semicircular baffle, thereby adjusting the inhalation flow of the anesthesia mask. It is easy to use. The anesthesia mask with adjustable inhalation volume can adjust the gas flow area of ​​the anesthesia mask through the transmission element, thereby adjusting the inhaled gas flow rate. Medical staff do not need to operate the medical gas delivery equipment, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the rear structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the oxygen supply connector of the utility model;

[0021] Figure 5 This is an enlarged structural diagram of point A of the utility model.

[0022] In the figure: 1 cover shell, 2 delivery tube, 3 anesthesia connector, 4 oxygen supply connector, 5 flow control mechanism, 51 semicircular baffle, 52 rotating shaft 1, 53 semicircular rotating baffle, 54 worm gear, 55 rotating shaft 2, 56 worm, 57 control knob, 6 hollow buffer plate, 7 cylinder shell 1, 8 telescopic column 1, 9 spring 1, 10 cylinder shell 2, 11 telescopic column 2, 12 spring 2, 13 arc extrusion plate, 14 filter screen, 15 rope threading hole. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5 , This embodiment provides a technical solution: an anesthesia mask with adjustable inhalation volume, comprising a cover shell 1 and a flow control mechanism 5;

[0025] The cover 1: The front wall thereof is penetrated with a delivery tube 2, and the front end of the inner wall of the delivery tube 2 is penetrated with an anesthesia connector 3 and an oxygen supply connector 4 respectively, and the outer sides of the anesthesia connector 3 and the oxygen supply connector 4 are provided with a cylinder shell 7, and the inside of the cylinder shell 7 is provided with a cylinder shell 2 10 through a uniformly distributed telescopic column 18, and the inside of the cylinder shell 2 10 is provided with a uniformly distributed arc extrusion plate 13 through a telescopic column 2 11, and a hollow buffer plate 6 is provided in the middle of the inner wall of the delivery tube 2, and a uniformly distributed spring 9 is provided between the cylinder shell 7 and the adjacent cylinder shell 2 10, and the spring 9 is movably sleeved with the outer end of the adjacent telescopic column 8, and the arc extrusion plate 13 is movably sleeved with the adjacent There are evenly distributed springs 12 between the two cylinder shells 10, and the two springs 12 are movably connected with the outer ends of the adjacent telescopic columns 11. The rear end of the delivery tube 2 is provided with a filter 14, and the rear side of the cover 1 is provided with evenly distributed rope threading holes 15. When using the anesthesia mask, first press the cylinder shell 10 on the oxygen supply connector 4 to make it penetrate into the adjacent cylinder shell 1 7, the telescopic end of the telescopic column 1 8 and the spring 1 9 are contracted, and the connection of the oxygen supply connector 4 is exposed to the outside, and then the connector of the oxygen supply pipe is sleeved to the exposed part of the oxygen supply pipe 4, and then press the joint part of the oxygen supply pipe to keep its position unchanged, and at the same time release the pressure applied to the cylinder shell 10 The compression force of the spring 19 causes the cylinder shell 10 to indirectly drive the arc-shaped extrusion plate 13 to move toward the joint of the oxygen supply tube. The arc surface of the arc-shaped extrusion plate 13 contacts the outer edge of the joint of the oxygen supply tube. As the cylinder shell 10 continues to move, the arc-shaped extrusion plate 13 moves along the outer side of the joint of the oxygen supply tube. The telescopic end of the telescopic column 11 and the spring 12 contract. The compression force of the spring 12 squeezes the overlapping part of the joint between the oxygen supply connector 4 and the oxygen supply tube to prevent it from falling off later. Then, the anesthesia connector 3 is connected to the external anesthesia delivery tube by the same principle. , then the elastic band is passed through the corresponding threading hole 15 and fixed on the patient's head, so that the cover 1 fits the designated part of the patient's face, and then the anesthetic gas and oxygen are respectively delivered to the delivery pipe 2 through the anesthesia delivery pipe and the oxygen delivery pipe, and the pipe diameter is reduced by the hollow buffer plate 6 to reduce the flow area of ​​the two gases, so as to mix them, and the anesthetic gas and oxygen are mixed and filtered into the cover 1 by the impurities of the filter 14. The anesthesia mask with adjustable inhalation volume is auxiliary squeezed and fixed by the spring elastic force on the overlapping part between the joint and the external gas pipeline to avoid the phenomenon of falling off and separation between the two;

[0026] Flow control mechanism 5: It is arranged inside the conveying pipe 2, and the flow control mechanism 5 includes a semicircular baffle 51, a rotating shaft 52, a semicircular rotating baffle 53, a worm wheel 54, a rotating shaft 55 and a worm 56. The semicircular baffle 51 is arranged on the inner wall of the conveying pipe 2, and the front side of the semicircular baffle 51 is rotatably connected to the rotating shaft 1 52 through a bearing. The rotating shaft 1 52 is located at the axial center of the conveying pipe 2. A semicircular rotating baffle 53 is arranged in the middle of the rotating shaft 1 52. The rear side of the semicircular rotating baffle 53 contacts the front side of the semicircular baffle 51. A worm wheel 54 is arranged at the front end of the rotating shaft 1 52. The inner wall of the conveying pipe 2 is rotatably connected to the rotating shaft 2 55 through a bearing. A worm 56 is arranged at the lower end of the rotating shaft 2 55. The worm 56 is meshed with the worm wheel 54. The flow control mechanism 5 also includes a control knob 57. The control knob The knob 57 is arranged at the upper end of the second rotating shaft 55. When the inhalation amount of the anesthesia mask is adjusted, the adjusting knob 57 is turned to drive the second rotating shaft 55 to rotate, and the second rotating shaft 55 drives the worm 56 to rotate. The worm 56 is connected by meshing so that the worm wheel 54 drives the first rotating shaft 52 to rotate, and the first rotating shaft 52 drives the semicircular rotating baffle 53 to rotate. During the rotation of the semicircular rotating baffle 53 around the axis of the delivery tube 2, the gas flow area in the delivery tube 2 is adjusted by complementary cooperation with the semicircular baffle 51, thereby adjusting the inhalation flow of the anesthesia mask. It is easy to use. The anesthesia mask with adjustable inhalation amount can adjust the gas flow area of ​​the anesthesia mask through the transmission element, and then adjust the inhaled gas flow. There is no need for medical staff to operate the medical gas delivery equipment, and it is easy to use.

[0027] The working principle of an anesthesia mask with adjustable inhalation volume provided by the utility model is as follows: when using the anesthesia mask, firstly, the cylinder shell 2 10 on the oxygen supply connector 4 is pressed to make it go deep into the adjacent cylinder shell 1 7, the telescopic end of the telescopic column 1 8 and the spring 1 9 are contracted, and the connection part of the oxygen supply connector 4 is exposed to the outside, and then the joint of the oxygen supply tube is sleeved to the exposed part of the oxygen supply connector 4, and then the joint part of the oxygen supply tube is pressed to keep its position unchanged, and at the same time, the pressure applied to the cylinder shell 2 10 is released, and the cylinder shell is compressed by the compression elastic force of the spring 1 9. The second 10 indirectly drives the arc extrusion plate 13 to move toward the joint of the oxygen supply pipe, and the arc surface of the arc extrusion plate 13 contacts the outer edge of the joint of the oxygen supply pipe. As the cylinder shell 10 continues to move, the arc extrusion plate 13 moves along the outer side of the joint of the oxygen supply pipe, and the telescopic end of the telescopic column 11 and the spring 12 contract. The compression elastic force of the spring 12 squeezes the overlapping part of the sleeve between the oxygen supply joint 4 and the joint of the oxygen supply pipe to prevent it from falling off later. Principle: The anesthesia connector 3 is connected to the external anesthesia delivery tube, and then the elastic band is passed through the corresponding threading hole 15 and fixed on the patient's head, so that the cover 1 fits to the designated part of the patient's face, and then the anesthesia delivery tube and the oxygen delivery tube are used to deliver anesthetic gas and oxygen to the delivery tube 2 respectively, and the pipe diameter is reduced by the hollow buffer plate 6 to reduce the flow area of ​​the two gases, so that they are mixed, and the anesthetic gas and oxygen are mixed and filtered into the cover 1 through the impurities of the filter 14. When the inhalation amount of the anesthesia mask is adjusted, the control knob 57 is turned to drive the second shaft 55 to rotate, and the second shaft 55 drives the worm 56 to rotate. The worm 56 is connected by meshing so that the worm wheel 54 drives the first shaft 52 to rotate, and the first shaft 52 drives the semicircular rotating baffle 53 to rotate. During the rotation of the semicircular rotating baffle 53 around the axis of the delivery tube 2, the gas flow area in the delivery tube 2 is adjusted by complementary cooperation with the semicircular baffle 51, and then the inhalation flow of the anesthesia mask is adjusted, which is convenient to use.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An anesthesia mask with adjustable inhalation volume, characterized in that: It comprises a housing (1) and a flow control mechanism (5); The cover (1) has a delivery tube (2) passing through its front wall, an anesthesia connector (3) and an oxygen supply connector (4) passing through the front end of the inner wall of the delivery tube (2), a cylinder shell (7) is provided on the outer side of the anesthesia connector (3) and the oxygen supply connector (4), a cylinder shell (1) is provided inside the cylinder shell (7) through evenly distributed telescopic columns (1) (8), and an evenly distributed arc-shaped extrusion plate (13) is provided inside the cylinder shell (10) through evenly distributed telescopic columns (11); Flow control mechanism (5): It is arranged inside the delivery pipe (2).

2. The anesthesia mask with adjustable inhalation volume according to claim 1, characterized in that: The flow control mechanism (5) comprises a semicircular baffle (51), a rotating shaft (52), a semicircular rotating baffle (53), a worm wheel (54), a rotating shaft (55) and a worm (56). The semicircular baffle (51) is arranged on the inner wall of the conveying pipe (2). The front side of the semicircular baffle (51) is rotatably connected to the rotating shaft (52) via a bearing. The rotating shaft (52) is located at the axial center of the conveying pipe (2). The middle part of the rotating shaft (52) is provided with a semicircular rotating baffle (53). The rear side of the semicircular rotating baffle (53) contacts the front side of the semicircular baffle (51). The front end of the rotating shaft (52) is provided with a worm wheel (54). The inner wall of the conveying pipe (2) is rotatably connected to the rotating shaft (55) via a bearing. The lower end of the rotating shaft (55) is provided with a worm (56). The worm (56) is meshedly connected to the worm wheel (54).

3. The anesthesia mask with adjustable inhalation volume according to claim 2, characterized in that: The flow control mechanism (5) further comprises a control knob (57), and the control knob (57) is arranged at the upper end of the second rotating shaft (55).

4. The anesthesia mask with adjustable inhalation volume according to claim 1, characterized in that: A hollow buffer plate (6) is provided in the middle of the inner wall of the delivery pipe (2).

5. The anesthesia mask with adjustable inhalation volume according to claim 1, characterized in that: Evenly distributed springs (9) are arranged between the cylinder shell (7) and the adjacent cylinder shell (10), and the springs (9) are movably sleeved with the outer ends of the adjacent telescopic columns (8).

6. The anesthesia mask with adjustable inhalation volume according to claim 1, characterized in that: The arc-shaped extrusion plate (13) and the adjacent second cylinder shell (10) are both provided with uniformly distributed second springs (12), and the second springs (12) are both movably sleeved with the outer ends of the adjacent second telescopic columns (11).

7. The anesthesia mask with adjustable inhalation volume according to claim 1, characterized in that: A filter screen (14) is provided at the rear end of the delivery pipe (2).

8. The anesthesia mask with adjustable inhalation volume according to claim 1, characterized in that: The rear side of the cover shell (1) is provided with evenly distributed rope threading holes (15).

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