Split intestinal obstruction catheter device with nutrition support function

By designing a split intestinal obstruction catheter and using a sealed airbag and annular airbag to control the independent operation of the nutrient tube and drainage tube, the patient's pain and infection risk caused by the step-by-step operation of the traditional catheter is solved, and the independent operation of efficient infusion and drainage of nutrient solution is achieved.

CN120514941APending Publication Date: 2025-08-22THE 900TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202510490049.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2025-08-22

AI Technical Summary

Technical Problem

When performing enteral nutritional support and drainage operations, traditional catheters need to be operated step by step, which increases the patient's pain and easily leads to infection, and the nutrient solution infusion efficiency is low. The lack of sealing of the pipes of the double-lumen catheters leads to the intestinal contents being easily blocked into the nutrient tube.

Method used

A split intestinal obstruction catheter is designed, including a drainage tube and a nutrient tube. The front end of the nutrient tube is equipped with a sealed airbag and an annular airbag. The expansion and recovery of the airbag are controlled through the inflatable channel, so as to realize the independent operation of the nutrient tube and the drainage tube to prevent intestinal content from entering the nutrient tube.

Benefits of technology

It realizes the independent process of efficient infusion and drainage of nutrient solution, reduces the patient's pain and infection risk, and improves the convenience and safety of operation.

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Abstract

The invention relates to the technical field of medical instruments, in particular to a split intestinal obstruction catheter device with a nutrition supporting function. The device comprises a drainage tube, a connecting branch tube arranged at the rear end part of the drainage tube in a communicating manner, a nutrient tube of which the front end penetrates through the connecting branch tube and is movably arranged in the drainage tube, and a locking piece which is fixedly arranged on the connecting branch tube and is used for locking the nutrient tube. The invention aims to provide a split intestinal obstruction catheter device with a nutrition support function.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a split intestinal obstruction catheter device with a nutritional support function. Background Art

[0002] Colorectal cancer is a common malignant tumor of the digestive tract, especially in elderly patients with an insidious onset. They often live alone or have difficulty accessing medical care until intestinal obstruction occurs, leading to delayed medical attention. Patients with intestinal obstruction often do not eat properly for several days after surgery, and their physical condition is generally poor, with high rates of malnutrition and mortality. Acute intestinal obstruction also damages the intestinal mucosal barrier structure, increasing the incidence of enterogenic infections. Early postoperative enteral nutrition not only replenishes acute energy consumption in patients with acute intestinal obstruction and reduces stress and the release of inflammatory mediators, but also protects the intestinal mucosal barrier, preventing bacterial translocation and enterogenic infections, thereby protecting organs throughout the body. Therefore, strengthening nutritional support for patients after surgery is particularly important to reduce postoperative complications and promote recovery.

[0003] However, since nutritional support requires infusion of nutrients into the intestine through a nutrition tube (nasogastric tube), which conflicts with intestinal drainage, when using a traditional catheter for operation, the patient needs to change the tube during drainage and nutritional support, and operate in steps. This process not only increases the patient's pain but also easily leads to secondary infection of the patient. When using a double-lumen catheter for operation, the double-lumen catheter lacks blockage at the tube, which makes it easy for intestinal contents to enter the nutrition tube (nasogastric tube) during drainage. However, due to insufficient suction, the intestinal contents remain and are blocked in the nutrition tube, affecting the efficiency of nutrient solution infusion.

[0004] Therefore, how to design a split intestinal obstruction catheter with nutritional support function that can solve the above technical problems is a technical problem that needs to be solved. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a split intestinal obstruction catheter device with nutritional support function.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: comprising a drainage tube, a connecting branch connected to the rear end of the drainage tube, a nutrition tube with its front end passing through the connecting branch and movably arranged in the drainage tube, and a locking member fixed to the connecting branch for locking the nutrition tube;

[0007] An annular airbag is connected to the outer peripheral wall of the front end of the nutrition tube, and a first inflation channel connected to the annular airbag is opened in the side wall of the nutrition tube along the length direction of the nutrition tube body; a blocking airbag for blocking the front end tube opening of the nutrition tube is connected to the inner side wall of the front end of the nutrition tube, and a second inflation channel connected to the blocking airbag is opened in the side wall of the nutrition tube along the length direction of the nutrition tube body.

[0008] Furthermore, the nutrition tube is further provided with a first branch tube connected to the first inflation channel, and the nutrition tube is further provided with a second branch tube connected to the second inflation channel.

[0009] Furthermore, a positioning airbag is provided at the front end of the drainage tube, a third inflation channel is opened in the side wall of the drainage tube along the length direction of the drainage tube, and a third branch tube connected to the third inflation channel is also provided on the drainage tube.

[0010] Furthermore, the locking member is a hose clamp sleeved on the outer peripheral wall of the connecting branch pipe.

[0011] Furthermore, the hose clamp includes a strip-shaped elastic clamp body and ears and slots respectively provided at both ends of the clamp body, and the ears extend into the slots to enclose the clamp body to form a closed ring.

[0012] Furthermore, the first branch pipe, the second branch pipe, the third branch pipe and the connecting branch pipe are all provided with sealing plugs.

[0013] The present invention has the following beneficial effects:

[0014] 1-The present invention provides a blocking airbag inside the front end of the nutrition tube, and injects liquid or gas into the second inflation channel through the second branch pipe to inflate the blocking airbag and make it contact with the inner wall of the nutrition tube to block the tube opening. When the nutrient solution is injected, the gas or liquid in the blocking airbag is extracted by deflating or pumping out the liquid to restore it, thereby facilitating the injection of the nutrient solution.

[0015] 2-The present invention provides an annular airbag on the outer wall of the nutrition tube, and injects air or liquid into the first inflation channel through the first branch pipe to inflate the annular airbag so as to abut against the inner wall of the drainage tube, thereby facilitating the fixing of the position of the nutrition tube opening and the inside of the drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the present invention;

[0017] Figure 2 It is a cross-sectional schematic diagram of the present invention.

[0018] Description of reference numerals:

[0019] 1- drainage tube, 11- positioning airbag, 12- third inflation channel, 13- third branch tube;

[0020] 2-Connect branch pipe;

[0021] 3-nutrition tube, 31-annular airbag, 32-first inflation channel, 33-blocking airbag, 34-second inflation channel, 35-first branch tube, 36-second branch tube, 37-sealing rubber plug;

[0022] 4-locking piece, 41-elastic clamp body, 42-clip ear, 43-clip slot. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] See also Figure 1-2 As shown, the scheme includes a drainage tube 1, a connecting branch tube 2 connected to the rear end of the drainage tube 1, a nutrition tube 3 with its front end passing through the connecting branch tube 2 and movably arranged in the drainage tube 1, and a locking piece 4 fixed on the connecting branch tube 2 for locking the nutrition tube 3; by designing the nutrition tube 3 and drainage tube 1 to be detachable, the two can be easily disassembled and assembled.

[0025] An annular airbag 31 is connected to the outer peripheral wall of the front end of the nutrition tube 3, and a first inflation channel 32 connected to the annular airbag 31 is opened in the side wall of the nutrition tube 3 along the length direction of the nutrition tube 3; a blocking airbag 33 for blocking the front end tube opening of the nutrition tube 3 is connected to the inner side wall of the front end of the nutrition tube 3, and a second inflation channel 34 connected to the blocking airbag 33 is opened in the side wall of the nutrition tube 3 along the length direction of the nutrition tube 3.

[0026] Furthermore, the nutrition tube 3 is further provided with a first branch tube 35 communicating with the first inflation channel 32 , and the nutrition tube 3 is further provided with a second branch tube 36 communicating with the second inflation channel 34 .

[0027] Furthermore, the front end of the drainage tube 1 is connected to a positioning airbag 11, and a third inflation channel 12 is opened in the side wall of the drainage tube 1 along the length direction of the drainage tube 1. The drainage tube 1 is also provided with a third branch tube 13 connected to the third inflation channel 12.

[0028] Furthermore, the locking member 4 is a hose clamp sleeved on the outer peripheral wall of the connecting branch pipe 2 .

[0029] Furthermore, the hose clamp includes a band-shaped elastic clamp body 41 and ears 42 and slots 43 respectively provided at both ends of the clamp body. The ears 42 extend into the slots 43 to enclose the clamp body to form a closed ring.

[0030] Furthermore, the first branch pipe 35 , the second branch pipe 36 , the third branch pipe 13 and the connecting branch pipe 2 are all provided with sealing plugs 37 .

[0031] The working principle is roughly as follows:

[0032] When drainage is required, liquid or gas is injected into the second inflation channel 34 through the second branch tube 36 to inflate the sealing airbag 33 and make it come into contact with the inner wall of the nutrition tube 3 to seal the tube opening of the nutrition tube 3, thereby preventing intestinal contents and drainage fluid from flowing through the nutrition tube 3 during drainage, causing intestinal contents to remain and adhere to the wall of the nutrition tube 3, thereby affecting the injection flow rate.

[0033] When it is necessary to inject nutrient solution, the gas or liquid in the blocking airbag 33 is extracted by deflating or pumping out the liquid, so that the blocking airbag 33 can be restored, making it easier to inject the nutrient solution.

[0034] The above description is only a specific embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A split intestinal obstruction catheter device with nutritional support function, characterized by: It comprises a drainage tube (1), a connecting branch tube (2) connected to the rear end of the drainage tube (1), a nutrition tube (3) with its front end passing through the connecting branch tube (2) and movably arranged in the drainage tube (1), and a locking member (4) fixed to the connecting branch tube (2) for locking the nutrition tube (3); An annular air bag (31) is connected to the outer peripheral wall of the front end of the nutrition tube (3); a first inflation channel (32) connected to the annular air bag (31) is provided in the tube side wall of the nutrition tube (3) along the length direction of the tube body of the nutrition tube (3); a blocking air bag (33) for blocking the front end tube opening of the nutrition tube (3) is connected to the inner side wall of the front end of the nutrition tube (3); a second inflation channel (34) connected to the blocking air bag (33) is provided in the tube side wall of the nutrition tube (3) along the length direction of the tube body of the nutrition tube (3).

2. The split intestinal obstruction catheter device with nutritional support function according to claim 1, characterized in that: The nutrition tube (3) is further provided with a first branch tube (35) connected to the first inflation channel (32), and the nutrition tube (3) is further provided with a second branch tube (36) connected to the second inflation channel (34).

3. The split intestinal obstruction catheter device with nutritional support function according to claim 1, characterized in that: The front end of the drainage tube (1) is connected to a positioning airbag (11), a third inflation channel (12) is provided in the side wall of the drainage tube (1) along the length direction of the drainage tube (1), and a third branch tube (13) connected to the third inflation channel (12) is also provided on the drainage tube (1).

4. The split intestinal obstruction catheter device with nutritional support function according to claim 1, characterized in that: The locking member (4) is a hose clamp sleeved on the outer peripheral wall of the connecting branch pipe (2).

5. The split intestinal obstruction catheter device with nutritional support function according to claim 4, characterized in that: The hose clamp comprises a strip-shaped elastic clamp body (41) and a clamping ear (42) and a clamping groove (43) respectively provided at two ends of the clamp body. The clamping ear (42) extends into the clamping groove (43) to enclose the clamp body to form a closed ring.

6. The split intestinal obstruction catheter device with nutritional support function according to claim 1, characterized in that: The first branch pipe (35), the second branch pipe (36), the third branch pipe (13) and the connecting branch pipe (2) are all provided with sealing rubber plugs (37).