Intestinal tract expansion device
By designing an adjustable-diameter intestinal dilatation device, the problems of patient discomfort and resource waste have been solved, enabling more comfortable and economical intestinal examinations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杨连清
- Filing Date
- 2024-12-23
- Publication Date
- 2026-05-12
AI Technical Summary
Existing intestinal dilatation devices have a fixed insertion diameter during examinations, which leads to patient discomfort and leakage. Furthermore, traditional devices are disposable, resulting in resource waste.
An intestinal dilation device was designed with a semi-circular tip and a flared outer wall at the end. Combined with an elastic balloon and a one-way valve, it enables adjustable diameter cannulation, reduces patient discomfort, prevents leakage, and is reusable.
It effectively reduces patient discomfort, prevents leakage, reduces resource waste, and improves the comfort and economy of the examination.
Smart Images

Figure CN224220565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a medical imaging auxiliary device, and in particular to an intestinal dilation device suitable for assisting in the examination of patients' intestinal lesions during CT, MRI and X-ray. Background Technology
[0002] When treating patients with intestinal diseases, doctors often perform CT scans, MRIs, or X-rays. To determine the cause and improve treatment effectiveness, doctors often insert liquid or gas into the patient's intestines through the anus during these examinations. Currently, regardless of whether liquid or gas is used, the fixed diameter and primitive shape of the insertion tube can cause discomfort or leakage at the anal entrance. Furthermore, traditional intestinal dilation devices are disposable, resulting in resource waste. Utility Model Content
[0003] This invention is an improvement on traditional intestinal dilators used in hospitals for CT, MRI, or X-ray examinations of intestinal patients. The main improvement involves adding an insertion head to the intestinal air inlet tube. The tip of this insertion head is semi-circular, with the air outlet located on the side wall of the tip. The outer wall of the insertion head's end is funnel-shaped. The circular insertion head reduces patient discomfort when inserted into the rectum, while the funnel-shaped outer wall prevents leakage. The diameter and length of the insertion tube can be customized to suit different patient sizes. Except for the single-use insertion head, the rest of the intestinal dilator can be reused, reducing resource waste.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: it is composed of an insertion head, an outlet one-way valve, an air supply tube, an elastic balloon, an inlet tube, an inlet one-way valve, a semi-circular head, an air hole, a flared outer wall, an air supply channel, an outlet, and an inlet. Its characteristic is that the top of the insertion head is set as a semi-circular head, an air hole is provided on the side wall of the top part of the insertion head, the air hole is connected to the air supply channel of the insertion head, the outer side of the end of the insertion head is set as a flared outer wall, the air supply channel of the insertion head is connected to the outlet end of the outlet one-way valve, and the inlet end of the outlet one-way valve is connected to one end of the air supply tube. The other end of the gas supply tube is connected to the outlet of the elastic balloon, and the inlet of the elastic balloon is connected to one end of the inlet tube. The other end of the inlet tube is connected to the inlet one-way valve. When pressure is applied to the elastic balloon, it deforms, and the inlet one-way valve automatically closes. The gas in the elastic balloon is discharged into the intestine through the gas supply tube, the outlet one-way valve, and the insertion head. When the elastic balloon loses pressure, it returns to its original shape, and the outlet one-way valve automatically closes. The gas enters the elastic balloon through the inlet one-way valve and the inlet tube. The elastic balloon is repeatedly pressurized and depressurized to achieve the effect of inflating the intestine.
[0005] The advantages of this invention are that it has a simple structure and low manufacturing cost. When the round cannula head is inserted into the anus and rectum, it can reduce patient discomfort. The trumpet-shaped outer wall at the end of the cannula can prevent leakage. Except for the cannula, which is used only once, the other parts of the intestinal dilator can be reused. Attached Figure Description
[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0007] Figure 1 This is the front view of this utility model.
[0008] Figure 2 yes Figure 1 AA section view,
[0009] Figure 3 This is the front view of the cannula head (1).
[0010] Figure 4 yes Figure 3 BB cross-sectional view.
[0011] In the diagram: 1. Intubation head, 2. Outlet check valve, 3. Gas delivery tube, 4. Elastic balloon, 5. Inlet tube, 6. Inlet check valve, 7. Semi-circular head, 8. Air hole, 9. Horn-shaped outer wall, 10. Gas delivery channel, 11. Outlet, 12. Inlet. Detailed Implementation
[0012] exist Figure 1 , Figure 2 , Figure 3 , Figure 4 In the middle, the top of the insertion head (1) is set as a semi-circular head (7), and the side wall of the top of the insertion head (1) is provided with an air hole (8). The air hole (8) is connected to the air supply channel (10) of the insertion head (1). The outer side of the end of the insertion head (1) is set as a trumpet-shaped outer wall (9). The air supply channel (10) of the insertion head (1) is connected to the air outlet end of the air outlet check valve (2). The air inlet end of the air outlet check valve (2) is connected to one end of the air supply tube (3). The other end of the air supply tube (3) is connected to the air outlet (11) of the elastic balloon (4). The air inlet (12) of the elastic balloon (4) is connected to the air inlet tube (5). One end of the tube (5) is connected to the inlet tube (5), and the other end of the tube is connected to the inlet one-way valve (6). When pressure is applied to the elastic balloon (4), it deforms and the inlet one-way valve (6) closes automatically. The gas in the elastic balloon (4) is discharged from the air hole (8) through the air delivery tube (3), the outlet one-way valve (2), and the insertion head (1) into the intestine. When the elastic balloon (4) loses pressure, it returns to its original shape and the outlet one-way valve (2) closes automatically. The gas enters the elastic balloon (4) through the inlet one-way valve (6) and the inlet tube (5). The elastic balloon (4) is repeatedly pressurized and depressurized to achieve the effect of inflating the intestine.
Claims
1. An intestinal dilation device, comprising an insertion head (1), an outlet check valve (2), an air delivery tube (3), an elastic balloon (4), an inlet tube (5), an inlet check valve (6), a semi-circular head (7), an air hole (8), a trumpet-shaped outer wall (9), an air delivery channel (10), an outlet (11), and an inlet (12), characterized in that: The top of the insertion head (1) is set as a semi-circular head (7), and the side wall of the top of the insertion head (1) is provided with an air hole (8). The air hole (8) is connected to the air supply channel (10) of the insertion head (1). The outer side of the end of the insertion head (1) is set as a trumpet-shaped outer wall (9). The air supply channel (10) of the insertion head (1) is connected to the air outlet end of the air outlet check valve (2). The air inlet end of the air outlet check valve (2) is connected to one end of the air supply pipe (3). The other end of the air supply pipe (3) is connected to the air outlet (11) of the elastic balloon (4). The air inlet (12) of the elastic balloon (4) is connected to the air inlet pipe (5). One end is connected to the air inlet pipe (5), and the other end is connected to the air inlet check valve (6). When pressure is applied to the elastic balloon (4), it deforms and the air inlet check valve (6) closes automatically. The gas in the elastic balloon (4) is discharged from the air hole (8) through the air delivery pipe (3), the air outlet check valve (2), and the insertion head (1) into the intestine. When the elastic balloon (4) loses pressure, it returns to its original shape and the air outlet check valve (2) closes automatically. The gas enters the elastic balloon (4) through the air inlet check valve (6) and the air inlet pipe (5). The elastic balloon (4) is repeatedly pressurized and depressurized to achieve the effect of inflating the intestine.