Auxiliary air closing device for heart CT (Computed Tomography) examination

Abstract

The utility model discloses an auxiliary air closing device for heart CT (computed tomography) examination, and particularly relates to the technical field of CT examination, the auxiliary air closing device comprises an air supply valve, an oxygen supply air closing component is arranged on the air supply valve, the oxygen supply air closing component comprises a first connecting pipe arranged at the top of the air supply valve, and connecting shells are arranged on two sides of the first connecting pipe. According to the oxygen supply device, the oxygen supply valve is used for adjusting the flow, oxygen is divided by the second connecting pipe in the air supply valve and then conveyed into the lining cylinder, a patient inspires in the nasal cavity, so that airflow in the lining cylinder can be discharged through the aeration plug and the hose, and the floater can be displaced according to the suction force of the patient during inspiration; thoracic fluctuation caused by respiratory movement in an anoxic state is simulated, and a worker can easily compare different state conditions through CT examination.

Description

Technical Field

[0001] This utility model relates to the field of CT examination technology, and more specifically, to an auxiliary air-holding device for cardiac CT examination. Background Technology

[0002] A cardiac CT scan uses X-rays to irradiate the heart area and then uses computer technology to convert the X-ray images into high-resolution images. These images help doctors assess the structure and function of the heart, as well as the condition of the blood vessels surrounding the heart. During the examination, a contrast agent is injected into the blood vessels, which allows the coronary arteries to be visualized under X-ray. The main reason patients need to hold their breath during a cardiac CT scan is to obtain high-quality CT images, ensuring diagnostic accuracy. Breathing movements cause chest rise and fall, which affects the clarity of the images during a CT scan. Holding one's breath helps to stabilize the position of the chest and heart, reducing motion artifacts caused by breathing movements and resulting in clearer images.

[0003] Among them, the patent with publication number CN209464448U discloses a special auxiliary air-holding device for cardiac dual-source CT examination, including an oxygen mask, a limiting mechanism fixedly connected to the side wall of the oxygen mask, and a sealing cover fixedly connected to the inner side wall of the oxygen mask through two first adjustment mechanisms.

[0004] In use, this structure utilizes the combined action of a first adjustment mechanism, a second adjustment mechanism, a sealing cover, a connecting block, a nasal plug, and a rotating shaft. A first hydraulic telescopic pump adjusts the distance between the sealing cover and the patient's mouth, sealing the mouth. A second hydraulic telescopic pump then adjusts the nasal plug, sealing the nasal cavity and keeping the patient in a breath-holding state. Through the coordinated action of a limiting mechanism, a control valve, an oxygen mask, and an oxygen tube, the oxygen valve opens the oxygen tube, supplying oxygen to the patient through the nasal plug. Elastic straps and clips ensure the oxygen mask is stably fixed to the patient's face. However, the method of sealing the breath with the mask is cumbersome and cannot adjust the oxygen supply to simulate the position of the chest and heart in a low-oxygen state. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an auxiliary air-holding device for cardiac CT examination, which aims to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: an auxiliary air-locking device for cardiac CT examination, including an air supply valve, wherein an oxygen supply air-locking component is provided on the air supply valve;

[0007] The oxygen supply and air-tightening assembly includes a first connecting pipe disposed on the top of the air supply valve. Both sides of the first connecting pipe are provided with connecting shells, and each connecting shell is embedded with an inner liner. A mark is provided on one side of the surface of the inner liner.

[0008] The inner liner is equipped with a float that matches the inner liner and is slidably connected to it. A connector is inserted into the top of the connecting shell, which extends into the inner liner and communicates with it. A hose is inserted into the connector and communicates with it. An aeration plug is fixedly installed at the top of the hose, and the vertical cross-sectional shape of the aeration plug is arc-shaped.

[0009] As can be seen, in the above technical solution, the oxygen supply machine supplies oxygen to the air supply valve through the first connecting pipe, and the flow rate is adjusted by the air supply valve. The oxygen is then diverted in the air supply valve through the second connecting pipe and delivered to the inner liner. When the patient inhales through the nasal cavity, the airflow in the inner liner can be discharged through the aeration plug and the hose. The float can be displaced according to the suction force when the patient inhales, thus simulating the chest rise and fall caused by respiratory movements in a hypoxic state. This makes it easy for staff to compare different states through CT examination.

[0010] Optionally, in one possible implementation, a second connecting pipe is provided at the bottom of the connecting shell, one end of the second connecting pipe is connected to the inner liner, the other end of the second connecting pipe is inserted into the air supply valve, and a clamping plate is sleeved on the second connecting pipe, with an angled groove provided on the clamping plate.

[0011] As can be seen, in the above technical solution, the position of the float in the inner liner is easy to observe after marking. At the same time, the position of the clamping plate can be adjusted so that the second connecting pipe can contact different positions of the included angle groove, thereby achieving the function of clamping the second connecting pipe, which in turn makes the channel in the second connecting pipe closed and makes it easy to adjust the airflow.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By incorporating a supply and air-tight assembly and coordinating the various components, the oxygen supply machine supplies oxygen to the supply valve via the first connecting pipe. Simultaneously, the flow rate is adjusted by the supply valve. Oxygen is then diverted through the second connecting pipe within the supply valve and delivered to the inner liner. When the patient inhales through their nose, the airflow within the inner liner can be expelled through the aeration plug and hose. Furthermore, the float can be displaced according to the suction force of the patient's inhalation, simulating the chest rise and fall caused by respiratory movements under hypoxic conditions. This allows staff to easily compare different states using CT scans.

[0014] The markings make it easy to observe the position of the float inside the inner liner. At the same time, by adjusting the position of the clamping plate, the second connecting pipe can be made to contact different positions of the angled groove, thereby clamping the second connecting pipe and sealing the channel inside the second connecting pipe, making it easy to adjust the airflow. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0016] Figure 1 This is a front view of the overall structure of this utility model.

[0017] Figure 2 This is a side view of the overall structure of this utility model.

[0018] Figure 3 This is a perspective view of the first connecting pipe, air supply valve, connecting shell, second connecting pipe, and clamping plate of this utility model.

[0019] Figure 4 This utility model Figure 3 Exploded view.

[0020] The attached diagram is labeled as follows: 1. Air supply valve; 2. First connecting pipe; 3. Connecting shell; 4. Inner liner; 5. Marker; 6. Float; 7. Connecting joint; 8. Hose; 9. Aeration plug; 10. Second connecting pipe; 11. Clamping plate; 12. Angle groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As attached Figure 1-4The illustrated auxiliary air-holding device for cardiac CT examination uses an oxygen supply air-holding component on the air supply valve 1. The oxygen supply machine supplies oxygen to the air supply valve 1 through the first connecting pipe 2. At the same time, the flow rate is adjusted by the air supply valve 1. The oxygen is then diverted in the air supply valve 1 through the second connecting pipe 10 and delivered to the inner liner 4. When the patient inhales through the nasal cavity, the airflow in the inner liner 4 can be discharged through the aeration plug 9 and the hose 8. The float 6 can be displaced according to the suction force of the patient's inhalation, thereby simulating the chest rise and fall caused by respiratory movements under hypoxia. This makes it easy for staff to compare different states during CT examinations. The specific structural settings of the component are as follows.

[0023] The oxygen supply and air-tightening assembly includes a first connecting pipe 2 set on the top of the air supply valve 1. Both sides of the first connecting pipe 2 are provided with connecting shells 3, and each connecting shell 3 is embedded with an inner liner 4. A mark 5 is provided on one side of the surface of the inner liner 4.

[0024] A float 6 is installed inside the inner liner 4. The float 6 matches the inner liner 4 and is slidably connected to the inner liner 4. A connector 7 is inserted into the top of the connecting shell 3. The connector 7 extends into the inner liner 4 and is connected to the inner liner 4. A hose 8 is inserted into the connector 7 and is connected to the connector 7. An aeration plug 9 is fixedly installed at the top of the hose 8. The vertical cross-sectional shape of the aeration plug 9 is set to be arc-shaped.

[0025] A second connecting pipe 10 is provided at the bottom of the connecting shell 3. One end of the second connecting pipe 10 is connected to the inner liner 4, and the other end of the second connecting pipe 10 is inserted into the air supply valve 1. A clamping plate 11 is fitted on the second connecting pipe 10, and an angled groove 12 is opened on the clamping plate 11.

[0026] When using the above structure, during a cardiac CT scan, staff insert each tube 8 into the patient's nasal cavity, and the patient closes their mouth to hold their breath while the external CT equipment performs the examination. Simultaneously, during the examination, the oxygen supply is supplied to the air supply valve 1 through the first connecting tube 2 via the oxygen supply machine. The flow rate is adjusted by the air supply valve 1, and the oxygen is diverted through the second connecting tube 10 and delivered to the inner liner 4. When the patient inhales through their nasal cavity, the airflow in the inner liner 4 can be discharged through the aeration plug 9 and the tube 8. The float 6 can be displaced according to the suction force of the patient's inhalation, simulating the chest rise and fall caused by respiratory movements under hypoxia, which makes it easy for staff to compare different states during CT scans.

[0027] Furthermore, the position of the float 6 inside the inner liner 4 is easily observed through the marking 5. At the same time, the position of the clamping plate 11 can be adjusted so that the second connecting pipe 10 can contact different positions of the included angle slot 12, thereby achieving the function of clamping the second connecting pipe 10, which in turn closes the channel inside the second connecting pipe 10, making it easy to adjust the airflow.

[0028] Unlike existing technologies, this application discloses an auxiliary air-holding device for cardiac CT examination. An oxygen supply machine supplies oxygen to the air supply valve 1 through a first connecting pipe 2. At the same time, the flow rate is adjusted by the air supply valve 1. Oxygen is diverted in the air supply valve 1 through a second connecting pipe 10 and then delivered to the inner liner 4. When the patient inhales through the nasal cavity, the airflow in the inner liner 4 can be discharged through the aeration plug 9 and the hose 8. The float 6 can be displaced according to the suction force when the patient inhales, thereby simulating the chest rise and fall caused by respiratory movements under hypoxic conditions. This makes it easy for staff to compare different states during CT examinations.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An auxiliary air occlusion device for cardiac CT examinations, comprising an air supply valve (1), characterized in that: The oxygen supply valve (1) is provided with an oxygen supply and closing assembly; The oxygen supply and closing assembly comprises a first connecting pipe (2) arranged on the top of the oxygen supply valve (1), both sides of the first connecting pipe (2) are provided with a connecting shell (3), and each connecting shell (3) is embedded with an inner lining cylinder (4), and the surface of the inner lining cylinder (4) is provided with a mark (5) on one side. The inner lining cylinder (4) is provided with a float (6) inside, the float (6) is matched with the inner lining cylinder (4), and the float (6) is in sliding connection with the inner lining cylinder (4).

2. The auxiliary air occlusion device for cardiac CT examination according to claim 1, characterized in that: The top of the connecting shell (3) is inserted with a butt joint (7), the butt joint (7) extends into the inner lining cylinder (4) and is in communication with the inner lining cylinder (4).

3. The auxiliary air occlusion device for cardiac CT examination according to claim 2, characterized in that: The butt joint (7) is inserted with a hose (8), and the hose (8) is in communication with the butt joint (7).

4. The auxiliary air blocking device for cardiac CT examination according to claim 3, characterized in that: The top of the hose (8) is fixedly provided with an aeration plug (9), and the vertical section shape of the aeration plug (9) is arc-shaped.

5. The auxiliary air occlusion device for cardiac CT examination according to claim 1, characterized in that: The bottom of the connecting shell (3) is provided with a second connecting pipe (10), one end of the second connecting pipe (10) is in communication with the inner lining cylinder (4), and the other end of the second connecting pipe (10) is inserted into the oxygen supply valve (1).

6. The auxiliary air occlusion device for cardiac CT examination according to claim 5, characterized in that: The second connecting pipe (10) is sleeved with a clamping plate (11), and the clamping plate (11) is provided with a clamping angle slot (12).

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