Disposable enema balloon catheter

Abstract

The utility model provides a disposable enema balloon catheter, which belongs to the technical field of large intestine ultrasonic examination and comprises a sleeve and a main guide inner tube, the main guide inner tube is arranged inside the sleeve, enema openings corresponding to each other are respectively arranged on the side walls of the front ends of the sleeve and the main guide inner tube, a balloon is arranged on the sleeve, threads are arranged on the surface of the balloon, and the sleeve and the main guide inner tube are connected through the threads. A straight inlet and an inclined inlet are formed in the rear end of the cannula, a channel is formed in the tube wall of the main guide inner tube, and the two ends of the channel are communicated with the inclined inlet and the balloon respectively. The balloon is expanded by injecting gas or liquid, the area of the balloon is increased, threads are arranged on the surface of the balloon, the anus of a patient is clamped and can be more effectively blocked, the area of a single enema opening is approximately equal to the area of an inlet in the rear end of the main guide inner tube, contrast agents can be more smoothly conveyed to the intestinal tract, and the enema effect is better. The main guide inner tube is effectively prevented from being blocked in the enema process, and the enema success probability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of large intestine ultrasonic examination, in particular to a disposable enema balloon catheter. Background Art

[0002] The enema balloon catheter is used in colorectal ultrasound contrast examination. The ultrasound contrast agent is injected into the large intestine through the patient's anus, thereby filling the intestinal cavity, so that the ultrasound examination can clearly show the intestinal cavity and intestinal wall.

[0003] Anal enema of ultrasound contrast agent requires the insertion of a catheter into the anus. The catheter is equipped with a balloon, which needs to be inflated to block the anus while ensuring that the catheter is unobstructed and not blocked. The ultrasound contrast agent has a relatively viscous texture and requires a thicker catheter with a larger lumen.

[0004] At present, the clinical market uses thicker disposable catheters to replace enema catheters, but the use of disposable catheters has certain defects: 1. The catheter is too long, too thin, and the balloon is too small. For some patients with anal relaxation, the balloon is still unable to block the anus even when it is fully inflated; 2. The rear end opening of the catheter is too small, which is easy to block the catheter during contrast agent enema, resulting in enema failure. Therefore, in order to solve the problem of catheter blockage and easy detachment of the catheter and inability to block the anus, the present application proposes a disposable enema balloon catheter. Utility Model Content

[0005] The utility model provides a disposable enema balloon catheter, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A disposable enema balloon catheter comprises a sleeve and a main inner tube, wherein the main inner tube is arranged inside the sleeve, and the sleeve and the front end side walls of the main inner tube are respectively provided with enema ports corresponding to each other, the sleeve is provided with a balloon, the surface of the balloon is provided with threads, the rear end of the sleeve is provided with a straight inlet and an oblique inlet, and the tube wall of the main inner tube is provided with a channel, and the two ends of the channel are respectively connected with the oblique inlet and the balloon.

[0008] Furthermore, the balloon is in a truncated cone shape in an expanded state, with the bottom of the balloon facing the rear end of the sleeve and the top of the balloon facing the front end of the sleeve.

[0009] Furthermore, the balloon height is 27 mm to 32 mm.

[0010] Furthermore, the diameter of the balloon at one end close to the straight inlet is 44 mm to 50 mm.

[0011] Furthermore, the capacity of the balloon is 30ml to 100ml.

[0012] Furthermore, the number of the enema ports is two, and the two enema ports are symmetrically arranged.

[0013] Furthermore, an elastic rubber ring and a one-way valve are provided on the oblique inlet.

[0014] Furthermore, a rubber ring is provided inside the rear end of the main inner tube.

[0015] Furthermore, the length of the sleeve is 290 mm to 300 mm, the diameter of the sleeve is 13 mm to 14 mm, and the wall thickness of the sleeve is 0.5 mm to 0.7 mm.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The disposable enema balloon catheter provided by the utility model can expand the balloon into a truncated cone shape by injecting gas or liquid into the balloon through a syringe, thereby increasing the balloon area and clamping the patient's anus. The balloon is suitable for patients with loose anus and can effectively prevent the sleeve from being separated from the anus. Moreover, threads are arranged on the surface of the balloon, which can more effectively block the patient's anus. The main inner tube is used to introduce contrast medium, and the area of ​​a single enema port is approximately equal to the area of ​​the rear end entrance of the main inner tube, so that the contrast medium can be transported to the intestine more smoothly, effectively preventing the main inner tube from being blocked during the enema process, and improving the probability of successful enema. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial cross-sectional structural schematic diagram of the disposable enema balloon catheter of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the local A in the middle;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the casing of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the main inner tube of the utility model;

[0022] In the figure, 1 is a sleeve, 2 is a main inner tube, 3 is a front end, 4 is a rear end, 5 is an enema port, 6 is a balloon, 7 is a thread, 8 is a straight inlet, 9 is an oblique inlet, 10 is a channel, 11 is an elastic rubber ring, 12 is a one-way valve, 13 is a rubber ring, 14 is a bottom, and 15 is a top. DETAILED DESCRIPTION

[0023] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0024] Example

[0025] See also Figures 1 to 4 The utility model provides a disposable enema balloon catheter, comprising a sleeve 1 and a main inner tube 2, wherein the main inner tube 2 is arranged inside the sleeve 1, the inner wall of the sleeve 1 is closely fitted with the outer wall of the main inner tube 2, and the main inner tube and the sleeve 1 are integrally formed, the length of the sleeve 1 is 290 mm to 300 mm, the diameter of the sleeve 1 is 13 mm to 14 mm, the wall thickness of the sleeve 1 is 0.5 mm to 0.7 mm, and the sleeve 1 and the front end 3 of the main inner tube 2 are on the side wall The enema ports 5 are respectively provided with corresponding enema ports 5, through which the modeling agent is poured into the large intestine. The area of ​​a single enema port 5 is approximately equal to the area of ​​the rear end entrance of the main inner tube 2, so that the contrast agent is more smoothly delivered to the intestine, and the main inner tube 2 is effectively prevented from being blocked during the enema process, thereby increasing the probability of successful enema. The front end 3 of the main inner tube 2 is conical, which is convenient for inserting into the anus of the patient. The sleeve 1 is provided with a balloon 6, which is truncated in a truncated cone state, and the bottom 14 of the balloon 6 faces the rear end 4 of the sleeve 1. The top of the balloon 6 faces the front end 3 of the sleeve 1, which is easy to get stuck in the patient's anus and block the patient's anus, and stabilize the device. The surface of the balloon 6 is provided with a clockwise thread 7, and the rear end 4 of the sleeve 1 is provided with a straight inlet 8 and an oblique inlet 9. The wall of the main inner tube 2 is provided with a channel 10, and the diameter of the channel 10 is about 0.7mm to 0.9mm. When the balloon 6 is inflated, the thread 7 is a slope, and the slope faces the top of the balloon 6. Paraffin oil or other lubricants can be added to the surface of the balloon 6, which is easy to operate and insert into the anus. The balloon 6 The bottom 14 is enlarged and accompanied by the thread 7 to prevent the balloon 6 from slipping, and is suitable for patients with anal relaxation. The diameter of the balloon 6 near the straight entrance 8 is 44mm-50mm, the height of the balloon 6 is 27mm-32mm, and the capacity of the balloon 6 is 30ml-100ml. The pressure after the balloon 6 is expanded cannot compress the internal main inner tube 2, affecting the patency of the internal pipeline. The two ends of the channel 10 are respectively connected to the oblique entrance 9 and the balloon 6, and ensure patency, so as to facilitate the expansion of the balloon 6.

[0026] There are two enema openings 5 ​​, which are symmetrically arranged and are elliptical in shape.

[0027] An elastic rubber ring 11 and a one-way valve 12 are provided on the oblique inlet 9 , and a syringe can be connected thereto, and gas or liquid can be injected through the syringe to expand the balloon 6 .

[0028] A rubber ring 13 is arranged in the rear end 4 of the main inner tube 2. The inner diameter of the rubber ring 13 is 7.8 mm to 8.2 mm, so as to ensure that the main inner tube 2 is seamlessly connected with the upstream pipeline.

[0029] When in use, the straight inlet 8 is connected to the upstream pipeline, the front end 3 of the sleeve 1 with the built-in main inner tube 2 is inserted into the patient's anus, the oblique inlet 9 is connected to the syringe, the syringe injects gas or liquid into the balloon 6 through the channel 10, the balloon 6 expands into a frustum under the pressure of the gas or liquid, and blocks the patient's anus to prevent the sleeve 1 from detaching from the anus, and the upstream pipeline introduces contrast agent into the main inner tube 2, and the contrast agent is output through the enema port 5 to fill the large intestine.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable enema balloon catheter, characterized by: It comprises a sleeve and a main inner tube, wherein the main inner tube is arranged inside the sleeve, and the sleeve and the front end side walls of the main inner tube are respectively provided with enema ports corresponding to each other, the sleeve is provided with a balloon, the surface of the balloon is provided with threads, the rear end of the sleeve is provided with a straight inlet and an oblique inlet, and the tube wall of the main inner tube is provided with a channel, and the two ends of the channel are respectively connected with the oblique inlet and the balloon.

2. The disposable enema balloon catheter according to claim 1, characterized in that: The balloon is in a truncated cone shape when inflated, with the bottom of the balloon facing the rear end of the sleeve and the top of the balloon facing the front end of the sleeve.

3. The disposable enema balloon catheter according to claim 1, characterized in that: The balloon height is 27 mm to 32 mm.

4. The disposable enema balloon catheter according to claim 2, characterized in that: The diameter of the balloon at one end close to the straight inlet is 44 mm to 50 mm.

5. The disposable enema balloon catheter according to claim 1, characterized in that: The capacity of the balloon is 30ml to 100ml.

6. The disposable enema balloon catheter according to claim 1, characterized in that: The number of the enema ports is two, and the two enema ports are symmetrically arranged.

7. The disposable enema balloon catheter according to claim 1, characterized in that: An elastic rubber ring and a one-way valve are arranged on the oblique inlet.

8. The disposable enema balloon catheter according to claim 1, characterized in that: A rubber ring is arranged inside the rear end of the main inner tube.

9. The disposable enema balloon catheter according to claim 1, characterized in that: The length of the sleeve is 290 mm to 300 mm, the diameter of the sleeve is 13 mm to 14 mm, and the wall thickness of the sleeve is 0.5 mm to 0.7 mm.

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