Catheter support

Abstract

The application provides a aqueduct support, which comprises a tube body, the tube body is made of medical silica gel, the first end of the tube body is closed, and the second end of the tube body is open; the first end of the tube body is used for supporting a guide wire inserted from the second end of the tube body, so that the tube body is inserted into the aqueduct from the third ventricle of a subject; a side hole is formed on the tube body close to the first end of the tube body; the first end and the side hole are located in the fourth ventricle of the subject, and the second end is located in the third ventricle of the subject; and the middle part of the tube body is supported in the aqueduct. By arranging the aqueduct support in the aqueduct, the fourth ventricle is communicated with the third ventricle, the cerebrospinal fluid in the fourth ventricle is reversely guided into the third ventricle, and a new circulation route is formed.

Description

Technical Field

[0001] This application relates to a medical device, and more particularly to a water-conducting stent for use in the ventricles. Background Technology

[0002] In a normal ventricular system, cerebrospinal fluid (CSF) is produced in the lateral ventricles and circulates sequentially through the third ventricle, aqueduct, and fourth ventricle. In some patients, following intraventricular infection, tumors, or hemorrhage, adhesions can easily form between the aqueduct and the outflow tract of the fourth ventricle, leading to isolation of the fourth ventricle and creating a "dammed lake." In such cases, surgical instruments are needed to open the aqueduct, allowing CSF in the fourth ventricle to circulate back into the third ventricle, establishing a new CSF circulation pathway. However, the aqueduct is prone to re-adhesion after being opened. Summary of the Invention

[0003] To address the aforementioned issues, this application aims to propose a water conduit stent for connecting the third and fourth ventricles, thereby enabling the cerebrospinal fluid in the fourth ventricle to circulate back to the third ventricle.

[0004] The water guide pipe support of this application includes: a pipe body;

[0005] The tube is made of medical-grade silicone, with a closed first end and an open second end. The first end of the tube is used to provide support for the guide wire inserted from the second end of the tube, so as to insert the tube into the aqueduct from the third ventricle of the subject.

[0006] Near the first end of the tube, a side hole is formed on the tube; the first end and the side hole are located in the fourth ventricle of the subject, and the second end is located in the third ventricle of the subject; the middle part of the tube is supported in the aqueduct.

[0007] Preferably, a length scale is formed on the tube body; the starting mark of the length scale is set at the first end of the tube body.

[0008] Preferably, a duckbill valve is provided inside the tube so that the cerebrospinal fluid flowing through the tube flows from the first end of the tube to the second end of the tube.

[0009] Preferably, the duckbill valve is located near the second end of the pipe body.

[0010] By installing the aqueduct support of this application in the aqueduct, the fourth ventricle and the third ventricle are connected, and the cerebrospinal fluid in the fourth ventricle is guided back into the third ventricle to form a new circulation route. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the water pipe support of this application;

[0012] Figure 2 This is a schematic diagram of the main structure of the water pipe support in this application;

[0013] Figure 3 This is a top view of the water pipe support structure of this application;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the water pipe support of this application; Detailed Implementation

[0015] The water pipe support of this application will now be described in detail with reference to the accompanying drawings.

[0016] The water pipe support of this application includes: pipe body 10.

[0017] The tube body 10 is made of medical silicone, with its first end 11 closed and its second end 12 open; the first end 11 of the tube body 10 is used to provide support for the guide wire inserted from the second end 12 of the tube body 10, so as to insert the tube body into the aqueduct from the third ventricle of the subject.

[0018] Near the first end 11 of the tube body 10, a side hole 13 is formed on the tube body 10. There can be multiple side holes 13, which are formed on the upper and lower sides of the tube body 10 respectively.

[0019] The first end 11 and the side hole 13 of the tube body 10 are located in the fourth ventricle of the subject, and the second end 12 is located in the third ventricle of the subject; the middle part of the tube body 10 is supported in the aqueduct.

[0020] The tube 10 is generally 7cm long, but the length of the aqueduct varies slightly for each subject. Therefore, a length scale is formed on the tube 10. The starting mark of this length scale is set at the first end of the tube to facilitate the cutting of the tube 10 to a better match the subject, based on the length of the aqueduct determined by the subject's medical images before the operation.

[0021] A duckbill valve or valve 14 is installed inside the tube body 10, so that the cerebrospinal fluid flowing through the tube body flows from the first end of the tube body to the second end of the tube body. The duckbill valve or valve 14 is mainly designed to prevent cerebrospinal fluid from flowing from the third ventricle into the fourth ventricle, which would increase the pressure in the fourth ventricle.

[0022] The duckbill valve or diaphragm valve 14 is located near the second end of the tube body, which facilitates the passage of the guide wire through the valve body.

[0023] In use, first, insert the guidewire into the tube from the second end, resting it against the first end. Then, using the guidewire, insert the first end of the tube into the expanded aqueduct. Next, use surgical forceps to gradually insert the entire tube into the aqueduct section by section. The cerebrospinal fluid (CSF) in the fourth ventricle is under high pressure. Through the aqueduct stent of this application, it flows backward into the third ventricle, forming a new circulation path and reducing the CSF pressure in the fourth ventricle. When the subject is in an upright position, the third ventricle is above the fourth ventricle; however, due to the presence of the duckbill valve or valvular valve, the CSF in the third ventricle will not flow into the fourth ventricle, thus not increasing the CSF pressure in the fourth ventricle.

Claims

1. A ductal stent for patients with fourth ventricle isolation caused by adhesion between the ductal aqueduct and the fourth ventricle outflow tract, characterized in that... include: tube body; The tube is made of medical-grade silicone, with a closed first end and an open second end. The first end of the tube is used to provide support for the guide wire inserted from the second end of the tube, so as to insert the tube into the aqueduct from the third ventricle of the subject. Near the first end of the tube, a side hole is formed on the tube; the first end and the side hole are located in the fourth ventricle of the subject, and the second end is located in the third ventricle of the subject; the middle part of the tube is supported in the aqueduct. A duckbill valve is installed inside the tube, located near the second end of the tube. This valve is designed to prevent cerebrospinal fluid from flowing from the third ventricle into the fourth ventricle when the subject is in an upright position. This ensures that the cerebrospinal fluid flowing through the tube flows from the first end to the second end of the tube, guiding the cerebrospinal fluid in the fourth ventricle back into the third ventricle, forming a new circulation route and reducing the cerebrospinal fluid pressure in the fourth ventricle.

2. The water guide pipe support according to claim 1, characterized in that: The tube body has length markings formed on it; the starting mark of the length markings is set at the first end of the tube body.

Images