Computed tomography (CT) colon inflation radiography device

Abstract

The utility model relates to a CT (Computed Tomography) colon inflation radiography device and aims to solve the problems that liquid in intestinal tracts of part of patients flows back into a transfusion pipeline in the process of stopping injection of the current CT colon radiography device, unused barium in a barium storage bottle can be polluted, a pipe opening of the transfusion pipeline is thin, and the transfusion pipeline is inconvenient to use. The technical problem that if excrement which is not completely discharged exists in backflow objects, solid matter accumulation may block an infusion pipeline is solved, and the device comprises an air inflation bag and an air inflation assembly communicated with one end of the air inflation bag, and a one-way conveying assembly is installed at the other end of the air inflation bag. One end, far away from the inflatable bag, of the one-way conveying assembly is provided with an expansion assembly used for inflation expansion, and the one-way conveying assembly comprises a sliding shell, a guide shell constructed on one side of the sliding shell and an end cover. And the problem of pipeline blockage caused by accumulation of solid substances can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a CT colon inflation angiography device. Background Art

[0002] The working principle of CT colonography is to retrogradely inject barium and air into the intestine from the anus, and perform contrast examination of the colon through X-ray development. It is mainly used to detect the spread of intestinal lesions, especially for the diagnosis of early colon cancer. It is a very accurate medical examination method.

[0003] The inventor has found in his daily work that when using a CT colonography device to inject barium and air into the intestine from the anus, it is often not possible to control the injection amount at one time, and it is necessary to observe while injecting to ensure the best imaging effect. During this process, it is often necessary to stop the injection for observation. During the process of stopping the injection, some patients will have liquid in the intestine reflux into the infusion pipe, which will contaminate the unused barium in the barium storage bottle. At the same time, the infusion pipe has a thin tube mouth. If there is uncleaned feces in the reflux, the accumulation of these solid substances may block the infusion pipe. In view of this, we propose a CT colonography device. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a CT colonography device to solve the technical problem that in the process of stopping injection of the current CT colonography device, some patients may have liquid in the intestine reflux into the infusion pipeline, which will contaminate the unused barium in the barium storage bottle, and at the same time, the infusion pipeline has a thin orifice. If there is uncleaned feces in the reflux, the accumulation of these solid substances may block the infusion pipeline.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a CT colon inflatable contrast device, including an inflatable bag and an inflatable component connected to one end of the inflatable bag;

[0006] A one-way conveying assembly is installed at the other end of the inflatable bag, and an expansion assembly for inflation is installed at one end of the one-way conveying assembly away from the inflatable bag;

[0007] The one-way conveying assembly comprises a sliding shell, a guide shell constructed on one side of the sliding shell, and an end cover detachably mounted on the other side of the sliding shell, a movable sealing assembly movably mounted in the guide shell is slidably mounted in the sliding shell, and a sealing structure plugged in the movable sealing assembly is fixedly mounted on a side of the end cover away from the sliding shell, and a return spring abutting against one side of the sliding shell is sleeved on the movable sealing assembly;

[0008] The movable sealing assembly includes a sealing seat slidably arranged in a sliding shell and a guide seat constructed at one end of the sealing seat and movably arranged in the guide shell. One side of the outer edge surface of the sealing seat is provided with a plurality of sealing grooves in an annular array for inserting the sealing structure, and a vent hole is provided at the center of one end of the guide seat, and one end of the vent hole is provided with a plurality of connecting grooves in an annular array respectively connected to the plurality of sealing grooves.

[0009] Preferably, the sealing structure comprises a fixing ring, which is fixedly arranged on one side of the end cover, and one side of the end cover is configured with a plurality of sealing plugs in an annular array, and the plurality of sealing plugs are respectively inserted in the plurality of sealing grooves.

[0010] Preferably, a plurality of guide grooves are provided in a circular array on the outer edge surface of the guide seat, and a plurality of guide keys are constructed in a circular array inside the guide shell, the guide keys are slidably arranged in the guide grooves, and the return spring is sleeved on the guide seat and abuttedly installed between the sealing seat and one side of the sliding shell.

[0011] Preferably, an interface A is centrally connected to one end of the guide shell away from the sliding shell, and an interface B is centrally connected to one end of the end cover away from the sliding shell, and the interface B is installed at one end of the inflatable bag.

[0012] Preferably, the expansion assembly includes an air hose A, which is detachably mounted on the interface A, and a filling hose is connected to the side of the outer edge of the air hose A facing the one-way conveying assembly, a through hole is provided on the end of the outer edge of the air hose A away from the inflatable bag, and an adjusting ball is sleeved on the outer edge of the air hose A.

[0013] Preferably, the inflation assembly comprises an air supply hose B connected to one end of the inflatable bag, and an inflatable bag is installed at one end of the air supply hose B away from the inflatable bag.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model inflates the inflatable bag with air through the inflatable component, and delivers the gas into the expansion component through the one-way delivery component by squeezing the inflatable bag, thereby achieving expansion in the patient's intestine. During expansion, after the gas enters the sliding shell, it pushes the movable sealing component to move in the sliding shell, and squeezes and deforms the return spring, so that the sealing structure slides out of the multiple sealing grooves on the sealing seat, thereby achieving gas delivery to the expansion component through the vent holes connected with the multiple connecting grooves, and when the gas refluxes, the sealing structure is inserted into the multiple sealing grooves on the sealing seat again to achieve sealing of the vent holes connected with the multiple connecting grooves, thereby preventing the problem of gas reflux in the intestinal tract and avoiding the problem of pipeline blockage caused by accumulation of solid matter.

[0016] 2. The utility model realizes reciprocating movement in a sliding shell with a guide shell through a movable sealing component in cooperation with a return spring, so as to achieve a one-way ventilation effect. When the airflow flows into the sliding shell, a plurality of sealing plugs constructed on the fixed ring slide out of a plurality of sealing grooves on the sealing seat respectively, so that the gas passes through a plurality of connecting grooves and is sent into the patient's intestine along the vent hole, and then the barium agent is added through the filling hose to perform angiography. The multi-channel delivery method greatly improves the gas delivery efficiency and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a partial structural schematic diagram of the expansion assembly in the utility model;

[0019] Figure 3 It is a partial structural cross-sectional view of the one-way conveying component of the utility model in a disassembled state;

[0020] Figure 4 It is a cross-sectional view of the movable sealing component in the utility model.

[0021] In the figure: 1. Inflatable bag; 2. One-way conveying component; 201. Sliding shell; 202. Guide shell; 203. End cover; 204. Fixing ring; 205. Sealing plug; 206. Return spring; 207. Guide key; 208. Interface A; 209. Interface B; 3. Expansion component; 301. Gas hose A; 302. Filling hose; 303. Through hole; 304. Adjusting ball; 4. Movable sealing component; 401. Sealing seat; 402. Guide seat; 403. Sealing groove; 404. Vent hole; 405. Communication groove; 406. Guide groove; 5. Gas hose B; 6. Inflatable bag. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Example 1: A CT colonography device, see Figure 1 , including an inflatable bag 1 and an inflation component connected to one end of the inflatable bag 1, a one-way conveying component 2 is installed at the other end of the inflatable bag 1, and an expansion component 3 for inflation is installed at the end of the one-way conveying component 2 away from the inflatable bag 1, the inflatable component includes an air supply hose B5 connected to one end of the inflatable bag 1, and an inflatable balloon 6 is installed at the end of the air supply hose B5 away from the inflatable bag 1. The inflatable bag 1 is inflated through the inflation component, and the gas is sent into the expansion component 3 through the one-way conveying component 2 by squeezing the inflatable bag 1, thereby achieving expansion in the patient's intestine.

[0024] Furthermore, to prevent the problem of gas reflux into the intestine and to avoid the problem of solid matter accumulation causing tube blockage, see Figure 1 , Figure 3 , Figure 4 The one-way conveying component 2 includes a sliding shell 201, a guide shell 202 constructed on one side of the sliding shell 201, and an end cover 203 detachably installed on the other side of the sliding shell 201. A movable sealing component 4 movably arranged in the guide shell 202 is slidably arranged in the sliding shell 201, and a sealing structure plugged into the movable sealing component 4 is fixedly installed on the side of the end cover 203 away from the sliding shell 201. The sealing structure includes a fixing ring 204, and the fixing ring 204 is fixedly arranged on the end cover 20 3, and one side of the end cover 203 is provided with a plurality of sealing plugs 205 in an annular array, and the plurality of sealing plugs 205 are respectively inserted into the plurality of sealing grooves 403, and the outer edge surface of the guide seat 402 is provided with a plurality of guide grooves 406 in an annular array, and the guide shell 202 is provided with a plurality of guide keys 207 in an annular array, and the guide keys 207 are slidably arranged in the guide grooves 406, and the return spring 206 is sleeved on the guide seat 402 and abutted against the sealing seat 401 and the sliding The movable sealing assembly 4 is sleeved with a return spring 206 abutting against the inner side of the sliding shell 201, and the end of the guide shell 202 away from the sliding shell 201 is centrally connected with an interface A208, and the end of the end cover 203 away from the sliding shell 201 is centrally connected with an interface B209, and the interface B209 is installed at one end of the inflatable bag 1. When the air enters the sliding shell 201 during expansion, the movable sealing assembly 4 is pushed to move in the sliding shell 201, and the return spring 206 is pressed against the return spring 206. The sealing structure is extruded and deformed, so that the sealing structure slides out of the multiple sealing grooves 403 on the sealing seat 401, thereby realizing the gas delivery to the expansion component 3 through the vent hole 404 connected with the multiple connecting grooves 405, and when the gas refluxes, the sealing structure is again inserted into the multiple sealing grooves 403 on the sealing seat 401 to realize the sealing of the vent hole 404 connected with the multiple connecting grooves 405, thereby preventing the problem of gas reflux in the intestine and avoiding the problem of pipeline blockage caused by accumulation of solid matter.

[0025] Further, in order to position the gas delivery hose A301 placed in the intestine, see Figure 1 , Figure 2The expansion component 3 includes a gas hose A301, which is detachably mounted on the interface A208, and a filling hose 302 is connected to the side of the outer edge of the gas hose A301 facing the one-way conveying component 2. A through hole 303 is provided on the end of the outer edge of the gas hose A301 away from the inflatable bag 1, and an adjusting ball 304 is sleeved on the outer edge of the gas hose A301. When the gas is delivered into the patient's intestine through the gas hose A301, and the gas hose A301 is delivered into the user's intestine through the anus, the adjusting ball 304 positions the gas hose A301 placed in the intestine, and then barium is added through the filling hose 302 to perform angiography.

[0026] It is worth noting that in order to improve the gas delivery efficiency, see Figure 3 , Figure 4 The movable sealing assembly 4 comprises a sealing seat 401 slidably disposed in the sliding shell 201 and a guide seat 402 constructed at one end of the sealing seat 401 and movably disposed in the guide shell 202. A plurality of sealing grooves 403 for inserting the sealing structure are formed in an annular array on one side of the outer edge surface of the sealing seat 401, and a vent hole 404 is formed in the center of one end of the guide seat 402. A plurality of connecting grooves 405 respectively connected to the plurality of sealing grooves 403 are formed in an annular array at one end of the vent hole 404. The movable sealing assembly 4 cooperates with the reset spring 406 to form a plurality of connecting grooves 405 respectively connected to the plurality of sealing grooves 403. The spring 206 realizes reciprocating movement in the sliding shell 201 constructed with the guide shell 202 to achieve the effect of one-way ventilation. When the airflow flows into the sliding shell 201, the multiple sealing plugs 205 constructed on the fixing ring 204 slide out of the multiple sealing grooves 403 on the sealing seat 401 respectively, so that the gas passes through the multiple connecting grooves 405 and is sent into the patient's intestine along the vent 404, and then the barium is added through the filling hose 302 to perform angiography. The multi-channel delivery method greatly improves the gas delivery efficiency and is more practical.

[0027] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A CT colonography device, characterized in that: It comprises an inflatable bag (1) and an inflatable component connected to one end of the inflatable bag (1); A one-way conveying assembly (2) is installed at the other end of the inflatable bag (1), and an expansion assembly (3) for inflation is installed at one end of the one-way conveying assembly (2) away from the inflatable bag (1); The one-way conveying component (2) comprises a sliding shell (201), a guide shell (202) constructed on one side of the sliding shell (201), and an end cover (203) detachably mounted on the other side of the sliding shell (201); a movable sealing component (4) movably mounted in the guide shell (202) is slidably mounted in the sliding shell (201); a sealing structure plugged into the movable sealing component (4) is fixedly mounted on a side of the end cover (203) away from the sliding shell (201); and a return spring (206) is sleeved on the movable sealing component (4) and abuts against one side of the sliding shell (201); The movable sealing assembly (4) comprises a sealing seat (401) slidably disposed in a sliding shell (201) and a guide seat (402) constructed at one end of the sealing seat (401) and movably disposed in a guide shell (202); a plurality of sealing grooves (403) for inserting a sealing structure are provided in an annular array on one side of an outer edge surface of the sealing seat (401); a vent hole (404) is provided at the center of one end of the guide seat (402); and a plurality of connecting grooves (405) respectively connected to the plurality of sealing grooves (403) are provided in an annular array on one end of the vent hole (404).

2. The CT colonography device according to claim 1, characterized in that: The sealing structure comprises a fixing ring (204), wherein the fixing ring (204) is fixedly arranged on one side of the end cover (203), and one side of the end cover (203) is provided with a plurality of sealing plugs (205) in an annular array, wherein the plurality of sealing plugs (205) are respectively inserted into the plurality of sealing grooves (403).

3. The CT colonography device according to claim 1, characterized in that: The outer edge surface of the guide seat (402) is provided with a plurality of guide grooves (406) in an annular array, and the guide shell (202) is provided with a plurality of guide keys (207) in an annular array. The guide keys (207) are slidably arranged in the guide grooves (406). The return spring (206) is sleeved on the guide seat (402) and abuttedly installed between the sealing seat (401) and one side of the sliding shell (201).

4. The CT colonography device according to claim 1, characterized in that: An interface A (208) is centrally connected to one end of the guide shell (202) away from the sliding shell (201), and an interface B (209) is centrally connected to one end of the end cover (203) away from the sliding shell (201), wherein the interface B (209) is installed at one end of the inflatable bag (1).

5. The CT colonography device according to claim 1, characterized in that: The expansion assembly (3) comprises an air delivery hose A (301), the air delivery hose A (301) being detachably mounted on the interface A (208), and a filling hose (302) being connected to the outer edge of the air delivery hose A (301) on the side facing the one-way delivery assembly (2), a through hole (303) being formed on the outer edge of the air delivery hose A (301) at one end away from the inflatable bag (1), and an adjusting ball (304) being sleeved on the outer edge of the air delivery hose A (301).

6. The CT colonography device according to claim 1, characterized in that: The inflation assembly comprises an air delivery hose B (5) connected to one end of the inflatable bag (1), and an inflatable bag (6) is installed at the end of the air delivery hose B (5) away from the inflatable bag (1).

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