A ventriculoperitoneal shunt tube
By designing a ventriculoperitoneal shunt tube that includes a tube assembly, a handle, and a shunt tube fixation assembly, the problems of large pediatric trauma, complex operation, and high control difficulty in existing technologies have been solved, achieving a more efficient and safer shunt operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUJIANG HOSPITAL OF SOUTHERN MEDICAL UNIVERSITY
- Filing Date
- 2025-04-08
- Publication Date
- 2026-06-26
AI Technical Summary
Existing ventriculoperitoneal shunt tubing is prone to causing significant injury to children, is complex to operate, difficult to control, inefficient, and carries the risk of secondary injury.
A ventriculoperitoneal shunt tube was designed, including a tube assembly, a handle, a guide, and a shunt tube fixing assembly. By fixing the shunt tube to the rear end of the installation sleeve, the outer diameter of the tube assembly is reduced to prevent the inner core from rotating. The shunt tube is fixed by an elastic limiting ring and a clamping component, simplifying the operation steps.
It reduces the risk of injury to children from the trocar, improves operational efficiency and control precision, and reduces surgical risks and operation time.
Smart Images
Figure CN224404168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a ventriculoperitoneal shunt tube. Background Technology
[0002] Ventriculoperitoneal shunt surgery is a common procedure used to treat hydrocephalus. Its purpose is to drain cerebrospinal fluid from the ventricles into the abdominal cavity to relieve intracranial pressure. During this process, a shunt is used to create a subcutaneous tunnel from the head to the abdomen to allow for the smooth passage of the shunt tube.
[0003] Most existing drainage tubes consist of an inner core and a sleeve fitted over the inner core. In use, both the inner core and sleeve are inserted through the patient's head and then through the abdomen. The inner core is then removed from the sleeve, the drainage tube is inserted through the sleeve and clamped, and finally the sleeve is removed from under the patient's skin. However, the following problems may arise during actual operation:
[0004] 1. Existing shunts consist of a shunt core and a shunt sleeve. To reduce blockage, improve drainage, minimize secondary injury during placement, and reduce surgical risks, the diameter of the shunt tube is typically between 3 mm and 6 mm. When operating on children, since their development is not complete, the larger the outer diameter of the shunt tube, the greater the damage to the child during puncture, given that the diameter of the shunt tube cannot be reduced.
[0005] 2. During the puncture process, the inner core of the tube may rotate relative to the tube sleeve, which increases the difficulty for medical staff to control the tube and may increase the risk of damage to the area of the tube when it is inserted into the patient's subcutaneous tissue.
[0006] 3. The existing tubing has many steps when used. The inner core of the tubing needs to be removed first, and then the drainage tube needs to be passed through the tubing sleeve. Then the tubing needs to be pulled out of the patient's body. The whole process is complicated and time-consuming. In addition, it is difficult to pass the drainage tube from the tail end of the tubing sleeve to the head end, which will affect the efficiency of the operation. Utility Model Content
[0007] To address the aforementioned problems, the present invention aims to provide a ventriculoperitoneal shunt tube that can reduce the overall outer diameter of the tube assembly while maintaining the shunt tube diameter, thereby reducing the damage to children during puncture.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A ventriculoperitoneal shunt includes a shunt assembly, a handle fixed to the rear end of the shunt assembly, a detachable guide attached to the outer side of the front end of the shunt assembly, and a detachable shunt tube fixing assembly attached to the front end of the shunt assembly. The shunt assembly includes a shunt body placed under the patient's skin and an installation sleeve fixed to the front end of the shunt body along its extension direction. The shunt tube fixing assembly includes an installation post detachably installed inside the installation sleeve, a turntable fixed to the front end face of the installation post and abutting against the front end face of the installation sleeve, an insertion rod rotatably disposed in the middle of the front surface of the turntable and inserted into the shunt tube opening, and an elastic limiting ring surrounding and fixed to the outside of the insertion rod and abutting against the inner wall of the shunt tube. The guide is detachably sleeved outside the installation sleeve. The handle is fixed to the rear end of the shunt body.
[0010] More preferably, the guide is threadedly connected to the mounting sleeve; and the mounting post is threadedly connected to the mounting sleeve.
[0011] More preferably, the handle and the main body of the tube are integrally formed.
[0012] More preferably, the diverter is further provided with a clamping element between the turntable and the elastic limiting ring.
[0013] More preferably, the clamping element is a binding wire.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the tube assembly consists of a tube body and an installation sleeve fixed at the front end of the tube body. The shunt tube is fixed to the rear end of the installation sleeve by the shunt tube fixing assembly. The method of the shunt tube being sleeved inside the tube sleeve is changed to the shunt tube being fixed to the rear part of the tube assembly. This allows the outer diameter of the tube assembly to be reduced to the same as the outer diameter of the shunt tube. In this way, the outer diameter of the tube assembly can be reduced when the diameter of the shunt tube cannot be reduced, so as to reduce the damage to children when performing punctures on children.
[0016] 2. In this utility model, since the entire tube assembly is fixed, there will be no situation where the inner core of the tube rotates inside the tube sleeve, thereby reducing the difficulty for medical staff to control the tube and reducing the risk of additional damage when the tube cannot be precisely controlled during subcutaneous puncture of the patient.
[0017] 3. In this utility model, the shunt tube is sleeved onto the insertion rod, and then the shunt tube is fixed to the insertion rod by the elastic limiting ring and the clamping member. This allows the shunt tube to pass through the subcutaneous channel established by the tube when the tube is pulled back. This eliminates the need to first remove the tube core, insert the shunt tube from the tail end of the tube sleeve and then out the front end of the tube sleeve, and finally pull out the tube sleeve. This improves the efficiency of medical staff and reduces the operation time. At the same time, since the shunt tube does not need to pass through the tube sleeve, the operation difficulty can be reduced.
[0018] 4. In this utility model, the end of the shunt tube can be fixed to the shunt tube fixing component first. After the tube assembly passes through the patient's abdomen, it is only necessary to unscrew the guide from the mounting sleeve and insert the mounting post into the mounting sleeve. This can save the time of fixing the shunt tube to the tube assembly, thereby improving the operation efficiency. Attached Figure Description
[0019] Figure 1 A schematic diagram of the front of the ferrule.
[0020] Figure 2 Schematic diagram of front section of the through bar Figure 1 (Initial state);
[0021] Figure 3 Schematic diagram of front section of the through bar Figure 2 (Usage status 1);
[0022] Figure 4 A front sectional view of the shunt pipe fixing assembly;
[0023] Figure 5 Schematic diagram of front section of the through bar Figure 3 (Usage status 2);
[0024] Figure 6 Schematic diagram of front section of the through bar Figure 4 (Fixed state);
[0025] Figure 7 This is an enlarged view of the structure at point A.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Flow bar assembly; 11. Flow bar body; 12. Mounting sleeve; 2. Handle; 3. Guide; 4. Diverter pipe fixing assembly; 41. Mounting post; 42. Turntable; 43. Insert rod; 44. Elastic limit ring; 45. Clamping element; 5. Diverter pipe. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] A ventriculoperitoneal shunt tube includes a tube assembly 1, a handle 2 fixed to the rear end of the tube assembly, a guide 3 detachably covered on the outer side of the front end of the tube assembly 1, and a shunt tube 5 fixing assembly 4 detachably located at the front end of the tube assembly 1. The tube assembly 1 includes a tube body 11 placed under the patient's skin and an installation sleeve 12 fixed to the front end of the tube body 11 along its extension direction. The shunt tube 5 fixing assembly 4 includes an installation sleeve detachably installed inside the installation sleeve 12. The system comprises: a column 41; a turntable 42 fixed to the front end face of the mounting column 41 and abutting against the front end face of the mounting sleeve 12; an insert rod 43 rotatably disposed in the middle of the front plate of the turntable 42 and inserted into the opening of the diverter pipe 5; an elastic limiting ring 44 surrounding and fixed to the outside of the insert rod 43 and abutting against the inner wall of the diverter pipe 5; and a clamping member 45 clamped on the diverter pipe 5 and located between the turntable 42 and the elastic limiting ring 44; the guide member 3 is detachably sleeved on the outside of the mounting sleeve 12; and the handle 2 is fixed to the rear end of the guide bar body 11.
[0030] In this device, the tube assembly 1 consists of a tube body 11 and an mounting sleeve 12 fixed to the front end of the tube body 11. A shunt tube 5 is fixed to the rear end of the mounting sleeve 12 via a shunt tube fixing assembly 4. This changes the original method of the shunt tube 5 being fitted inside the tube sleeve to a method where the shunt tube 5 is fixed to the rear of the tube assembly 1. This allows the outer diameter of the tube assembly 1 to be reduced to the same size as the outer diameter of the shunt tube 5. This reduces the outer diameter of the tube assembly 1 when the diameter of the shunt tube 5 cannot be reduced, thus minimizing injury to children during punctures. Furthermore, because the tube assembly 1 is fixed as a whole, there is no rotation of the tube core within the tube sleeve, reducing the difficulty for medical personnel to control the tube and lowering the risk of additional injury during subcutaneous punctures due to inaccurate tube control. The shunt tube 5 is then fitted onto the insertion rod 4. 3. Subsequently, the shunt tube 5 is fixed to the insertion rod 43 by the elastic limiting ring 44 and the clamping member 45. This allows the shunt tube 5 to pass through the subcutaneous channel established by the tube when the tube is pulled back. This eliminates the need to remove the tube core, insert the shunt tube 5 from the tail end of the tube sleeve and then out the front end, and finally pull out the tube sleeve. This improves the efficiency of medical staff and reduces the operation time. At the same time, since the shunt tube 5 does not need to pass through the tube sleeve, the operation difficulty is reduced. In the use of this device, the tube end of the shunt tube 5 can be fixed to the shunt tube 5 fixing component 4 first. After the tube assembly 1 passes through the patient's abdomen, it is only necessary to unscrew the guide member 3 from the mounting sleeve 12 and insert the mounting post 41 into the mounting sleeve 12. This saves the time of fixing the shunt tube 5 to the tube assembly 1, thereby improving the operation efficiency.
[0031] As a possible implementation of this solution, preferably, the guide member 3 is threadedly connected to the mounting sleeve 12; and the mounting post 41 is threadedly connected to the mounting sleeve 12. The threaded connection between the guide member 3 and the mounting sleeve 12 allows for quick installation and removal of the guide member 3 and the mounting sleeve 12, while also preventing the guide member 3 from falling off the mounting sleeve 12 and rotating with it during fixing. Similarly, the threaded connection between the mounting post 41 and the mounting sleeve 12 allows for quick installation and removal of the mounting post 41 and the mounting sleeve 12, while also preventing the mounting post 41 from falling off the mounting sleeve 12 and rotating with it during fixing.
[0032] As a possible implementation of this solution, preferably, the handle 2 is integrally formed with the brush body 11; by integrally forming the handle 2 with the brush body 11, it is easier to control the brush body 11, thereby minimizing the risk of the handle 2 falling off the brush body 11 when it is controlled.
[0033] In this device, a limiting groove adapted to the opening of the diversion tube 5 can also be provided on the front plate of the turntable 42. This will prevent blood and other substances in the subcutaneous tunnel from entering the diversion tube 5 through the gap between the diversion tube 5 and the turntable 42 and contaminating the diversion tube 5 when the tube body 11 moves outward. On the other hand, it will also minimize the obstruction of the opening of the diversion tube 5 by the muscles on both sides of the subcutaneous channel when the diversion tube 5 moves along the subcutaneous channel with the tube body 11.
[0034] As one possible implementation of this solution, preferably, the clamping member 45 is a binding wire.
[0035] The working principle of this device is as follows:
[0036] First, the shunt tube 5 is fitted over the outside of the insertion rod 43 so that the opening of the shunt tube 5 abuts against the turntable 42. At this time, the elastic limiting ring 44 is located between the insertion rod 43 and the inner wall of the shunt tube 5. Then, the clamping member 45 is clamped on the shunt tube 5, and the guide member 3 is spiraled around the outside of the mounting sleeve 12. Then, the tube body 11, the mounting sleeve 12 and the guide member 3 are inserted into the subcutaneous tissue of the patient from the head and then out from the abdomen of the patient.
[0037] The second step is to unscrew the guide 3 from the mounting sleeve 12, and then screw the diverter pipe 5 fixing assembly 4, which has the diverter pipe 5 fixed, into the mounting sleeve 12 through the mounting post 41.
[0038] The third step involves using the handle 2 to control the tube body 11 to drive the installation sleeve 12, the shunt tube 5 fixing assembly 4 tightened with the installation sleeve 12, and the shunt tube 5 to be pulled out of the patient's body.
[0039] Fourth step, unscrew the mounting post 41 from the mounting sleeve 12, then remove the clamping part 45 from the diverter tube 5, and pull the insert rod 43 out of the diverter tube 5 by holding the outside of the turntable 42.
[0040] In this device, the clamping element 45 is a sterilized binding thread (such as suture thread), which is tied to the outside of the shunt tube 5 by binding.
[0041] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A ventriculoperitoneal shunt catheter, characterized in that: It includes a sprue assembly (1), a handle (2) fixed to the rear end of the sprue assembly, a guide (3) located on the outer side of the front end of the sprue assembly (1), and a detachable diverter (5) fixing assembly (4) located on the front end of the sprue assembly (1). The tube assembly (1) includes a tube body (11) placed under the patient's skin and an installation sleeve (12) fixed at the front end of the tube body (11) along the extension direction of the tube body (11); The diversion pipe (5) fixing assembly (4) includes a mounting post (41) that is detachably installed inside the mounting sleeve (12), a turntable (42) fixed to the front end face of the mounting post (41) and abutting against the front end face of the mounting sleeve (12), an insert rod (43) rotatably installed in the middle of the front plate of the turntable (42) and inserted into the pipe opening of the diversion pipe (5), and an elastic limiting ring (44) that surrounds and is fixed to the outside of the insert rod (43) and abutting against the inner wall of the diversion pipe (5). The guide (3) is detachably sleeved on the outside of the mounting sleeve (12); The handle (2) is fixed to the rear end of the main body (11).
2. The ventriculoperitoneal shunt stent of claim 1, wherein: The guide (3) is threadedly connected to the mounting sleeve (12); and the mounting post (41) is threadedly connected to the mounting sleeve (12).
3. The ventricular-peritoneal shunt stent of claim 1, wherein: The handle (2) is integrally formed with the main body (11).
4. The ventricular-peritoneal shunt stent of claim 1, wherein: The diversion pipe (5) is located between the turntable (42) and the elastic limiting ring (44) and is also clamped with a clamping member (45).
5. The ventriculoperitoneal shunt tube according to claim 4, characterized in that: The clamping element (45) is a binding wire.