A pressure-controlled ventriculoperitoneal drainage tube

Abstract

The present invention provides a pressure-controlled ventriculoperitoneal drainage tube, comprising a ventriculoperitoneal connecting tube, a pressure chamber, a control chamber, a control assembly, an abdominal connecting tube and a bracket; the ventriculoperitoneal connecting tube is fixedly connected to the pressure chamber through the connecting chamber, the pressure chamber is specifically a conical hollow chamber, and a control chamber is fixed near the bottom end of the pressure chamber, a control assembly is fixed in the control chamber, a liquid outlet is provided on the bottom chamber of the pressure chamber, a collecting chamber is fixed near the bottom end of the pressure chamber, and the bottom end of the collecting chamber is fixedly connected to the abdominal connecting tube. When the present invention is used, when the pressure of the ventriculostomy fluid outside the control chamber in the pressure chamber is greater than the pressing force of the control spring, the valve plate moves inward, so that the liquid delivery port is connected, the accumulated fluid passes through the liquid delivery port and then through the connecting hole, and falls into the bottom chamber of the pressure chamber after passing through the connecting hole, and the accumulated fluid passes through the collecting chamber and the abdominal connecting tube, and the drainage process is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of ventriculoperitoneal drainage devices, and in particular relates to a pressure-controlled ventriculoperitoneal drainage tube. Background Art

[0002] Ventriculoperitoneal drainage is a common method of treating hydrocephalus. A tube is drained from the lateral ventricle into the abdominal cavity, where cerebrospinal fluid is absorbed to relieve the symptoms of hydrocephalus.

[0003] However, this method has risks such as over-drainage and shunt tube blockage during use. Shunt tube blockage may occur at the ventricular end, abdominal end or shunt pump valve, while over-drainage is a medical risk caused by improper pressure control.

[0004] Based on this, a pressure-controlled ventriculoperitoneal drainage tube was proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a pressure-controlled ventriculoperitoneal drainage tube to address the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pressure-controlled ventriculoperitoneal drainage tube, comprising a ventriculoperitoneal connecting tube, a pressure chamber, a control chamber, a control component, an abdominal connecting tube and a bracket;

[0007] The ventricular connecting tube is fixedly connected to the pressure chamber through the connecting cavity, the pressure chamber is specifically a conical hollow cavity, and a control cavity is fixed near the bottom end of the pressure chamber, and a control component is fixed in the control cavity;

[0008] The control assembly includes a vertical cylinder, a hydraulic control rod, a control block, a control cylinder and a control rod. The vertical cylinder is fixed at the middle of the bottom surface of the control chamber, a hydraulic control rod is fixed to the top surface of the vertical cylinder, and a control block is fixed to the bottom end of the telescopic shaft of the hydraulic control rod. Two control rods are symmetrically sleeved on the side wall of the vertical cylinder. The inner end of the control rod abuts against the side end of the control block, and the control cylinder is fixed to the outer end of the control rod. Two liquid delivery ports are provided on the side of the control chamber near the bottom end.

[0009] A valve plate is sleeved in the liquid delivery port, the outer end of the control cylinder is connected to the valve plate, a plurality of communication holes are provided on the bottom surface of the control cavity, the communication holes are connected to the bottom cavity of the pressure cavity, a liquid outlet is provided on the bottom cavity of the pressure cavity, a collecting cavity is fixed on the outer side of the pressure cavity near the bottom end, and the bottom end of the collecting cavity is fixedly connected to the abdominal cavity connecting tube;

[0010] A bracket is movably connected to the outer side of the pressure chamber near the top.

[0011] As a further illustration of the present invention, a liquid inlet hole communicating with the pressure chamber is provided on the inner bottom surface of the connecting chamber.

[0012] As a further explanation of the present invention, a regulating airbag is fixed to the top of the control chamber, an air pressure regulating tube is fixed to the side end of the regulating airbag, the middle section of the air pressure regulating tube is fixed to the side wall of the pressure chamber, and the outer end of the air pressure regulating tube extends to the outside of the pressure chamber.

[0013] As a further explanation of the present invention, the two sides of the control block are specifically counterweight blocks with inclined side surfaces, and the end surface of the control rod close to the control block is also an inclined surface, and the control block and the control rod are used in conjunction with each other.

[0014] As a further explanation of the present invention, the control cylinder includes an outer cylinder, a control spring, a first connecting rod and a second connecting rod. The outer cylinder is a hollow cylinder with two ends passing through, and a control spring is sleeved in the outer cylinder. A first connecting rod is fixed to one end of the control spring, and the first connecting rod is sleeved on a side of the outer cylinder close to the control rod. A second connecting rod is fixed to the other end of the control spring, and the second connecting rod is sleeved on the other end of the outer cylinder, and the outer end of the second connecting rod is fixed to the valve plate.

[0015] As a further explanation of the present invention, the first connecting rod and the second connecting rod are both square rods, and square socket holes are also formed at both ends of the outer cylinder.

[0016] As a further illustration of the present invention, the control chamber separates the pressure chamber into two parts, a top chamber and a bottom chamber, and the mass of the bottom of the pressure chamber is greater than the mass of the top.

[0017] As a further explanation of the present invention, the bracket is specifically a circular bracket, and two connecting shafts are symmetrically fixed on the outside of the pressure chamber near the top, the connecting shafts are rotatably connected in the bracket, and four adjustment brackets are also fixed at equal intervals at the bottom end of the bracket.

[0018] As a further description of the present invention, the adjustment frame is specifically a telescopic adjustment frame with a sleeve rod.

[0019] As a further illustration of the present invention, the cerebral ventricle connecting tube and the abdominal cavity connecting tube are both made of flexible hoses.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The ventricular connecting tube in the present invention is fixedly connected to the pressure chamber through the connecting cavity. A liquid inlet hole connected to the pressure chamber is provided on the bottom surface of the connecting cavity for draining out the ventricular effusion. The pressure chamber is specifically a conical hollow cavity, and a control cavity is fixed near the bottom end of the pressure chamber. The control cavity separates the pressure chamber into two parts, a top cavity and a bottom cavity. The bottom mass of the pressure chamber is greater than the top mass, so that the pressure chamber is in a naturally vertical state in the suspended state. An adjusting airbag is fixed to the top of the control chamber, and an air pressure regulating tube is fixed to the side end of the adjusting airbag. The size of the available space in the control chamber can be adjusted by adjusting the size of the airbag, thereby completing the drainage operation of the ventricular effusion under different conditions.

[0022] 2. A control assembly is fixed in the control chamber of the present invention. The hydraulic control rod can drive the control block to move up or down, so as to adjust the sleeve length of the control rod in the vertical cylinder. The outer end of the control rod is fixed with a control cylinder. The control cylinder includes an outer cylinder, a control spring, a first connecting rod and a second connecting rod. The outer cylinder is a hollow cylinder with two ends through, and the control spring is sleeved in the outer cylinder. One end of the control spring is fixed with a first connecting rod, and the first connecting rod is sleeved on a side of the outer cylinder close to the control rod. The other end of the control spring is fixed with a second connecting rod, and the second connecting rod is sleeved on the other end of the outer cylinder, and the outer side of the second connecting rod The end is fixed on the valve plate, and the adjustment of the pressing force of the control spring can be completed by adjusting the sleeve length of the control rod, thereby adjusting the pressure of the valve plate at the liquid delivery port, thereby adjusting the pressure in the drainage process, and facilitating the control of the pressure in the drainage process. When the pressure of the ventricular effusion outside the control cavity in the pressure chamber is greater than the pressing force of the control spring, the valve plate moves inward, thereby connecting the liquid delivery port, and the effusion passes through the liquid delivery port and then through the connecting hole, and then falls into the bottom cavity of the pressure chamber after passing through the connecting hole. After the effusion passes through the collecting cavity and the abdominal cavity connecting tube, the drainage process is completed. The abdominal cavity connecting tube is used to connect the abdominal cavity tube to complete the drainage of the ventricle and abdominal cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 2 yes Figure 1 A magnified view of the structure at center;

[0025] Figure 3 It is a cross-sectional view of the control tube structure of the present invention.

[0026] Description of reference numerals:

[0027] 1- ventricle connecting tube; 11- connecting cavity; 12- liquid inlet; 2- pressure cavity; 21- liquid outlet; 3- control cavity; 31- liquid delivery port; 32- valve plate; 33- communicating hole; 4- regulating airbag; 5- control assembly; 51- vertical cylinder; 52- hydraulic control rod; 53- control block; 54- control cylinder; 541- outer cylinder; 542- control spring; 543- first connecting rod; 544- second connecting rod; 55- control rod; 6- collecting cavity; 7- abdominal cavity connecting tube; 8- bracket; 9- adjusting frame. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-3 As shown, the present invention provides a technical solution: a pressure-controlled ventriculoperitoneal drainage tube, comprising a ventriculoperitoneal connecting tube 1, a pressure chamber 2, a control chamber 3, a control component 5, an abdominal connecting tube 7 and a bracket 8;

[0030] The ventricular connecting tube 1 is fixedly connected to the pressure chamber 2 through a connecting cavity 11. The inner bottom surface of the connecting cavity 11 is provided with a liquid inlet 12 connected to the pressure chamber 2 for draining the ventricular effusion.

[0031] The pressure chamber 2 is specifically a conical hollow cavity, and a control chamber 3 is fixed near the bottom end of the pressure chamber 2. The control chamber 3 separates the pressure chamber 2 into two parts, a top chamber and a bottom chamber. The bottom mass of the pressure chamber 2 is greater than the top mass, so that the pressure chamber 2 is in a natural vertical state in a suspended state.

[0032] An adjusting airbag 4 is fixed to the top of the control chamber 3, and an air pressure regulating tube is fixed to the side end of the adjusting airbag 4. The middle section of the air pressure regulating tube is fixed to the side wall of the pressure chamber 2, and the outer end of the air pressure regulating tube extends to the outside of the pressure chamber 2. By adjusting the size of the airbag 4, the size of the available space in the control chamber 3 can be completed, thereby completing the drainage operation of ventricular effusion under different conditions.

[0033] A control assembly 5 is fixed in the control chamber 3, and the control assembly 5 includes a vertical cylinder 51, a hydraulic control rod 52, a control block 53, a control cylinder 54 and a control rod 55. The vertical cylinder 51 is fixed in the middle of the bottom surface of the control chamber 3, and the hydraulic control rod 52 is fixed to the top surface of the vertical cylinder 51, and the control block 53 is fixed to the bottom end of the telescopic shaft of the hydraulic control rod 52. Two control rods 55 are symmetrically sleeved on the side wall of the vertical cylinder 51, and the inner ends of the control rods 55 are against the side ends of the control block 53. The two sides of the control block 53 are specifically counterweight blocks with inclined side surfaces, and the end surface of the control rod 55 close to the control block 53 is also an inclined surface. The control block 53 and the control rod 55 are used in conjunction with each other, and the hydraulic control rod 52 can drive the control block 53 to move up or press down, thereby completing the adjustment of the sleeve length of the control rod 55 in the vertical cylinder 51.

[0034] A control cylinder 54 is fixed to the outer end of the control rod 55, and the control cylinder 54 includes an outer cylinder 541, a control spring 542, a first connecting rod 543 and a second connecting rod 544. The outer cylinder 541 is a hollow cylinder with two ends passing through, and the control spring 542 is sleeved in the outer cylinder 541. One end of the control spring 542 is fixed with a first connecting rod 543, and the first connecting rod 543 is sleeved on a side of the outer cylinder 541 close to the control rod 55. The other end of the control spring 542 is fixed with a second connecting rod 544, and the second connecting rod 544 is sleeved on the other end of the outer cylinder 541. The outer end of the second connecting rod 544 is fixed to the valve plate 32. By adjusting the sleeve length of the control rod 55, the pressing force of the control spring 542 can be adjusted, thereby adjusting the pressure of the valve plate 32 at the liquid delivery port 31, thereby adjusting the pressure during the drainage process, and facilitating the control of the pressure during the drainage process.

[0035] When the pressure of the ventricular effusion outside the control chamber 3 in the pressure chamber 2 is greater than the pressing force of the control spring 542, the valve plate 32 moves inward, thereby connecting the liquid delivery port 31, and the effusion passes through the liquid delivery port 31 and then through the connecting hole 33, and then falls into the bottom cavity of the pressure chamber 2 after passing through the connecting hole 33.

[0036] In order to ensure stable operation of the control cylinder 54 , the first connecting rod 543 and the second connecting rod 544 are both square rods, and square socket holes are also formed at both ends of the outer cylinder 541 .

[0037] Two liquid delivery ports 31 are provided on the side of the control chamber 3 near the bottom end, and a valve plate 32 is sleeved inside the liquid delivery port 31. The outer end of the control cylinder 54 is connected to the valve plate 32. A plurality of connecting holes 33 are provided on the bottom surface of the control chamber 3. The connecting holes 33 are connected to the bottom cavity of the pressure chamber 2. A liquid outlet 21 is provided on the bottom cavity of the pressure chamber 2. A collecting chamber 6 is fixed on the outside of the pressure chamber 2 near the bottom end, and the bottom end of the collecting chamber 6 is fixedly connected to a peritoneal connecting tube 7. After the accumulated fluid passes through the collecting chamber 6 and the peritoneal connecting tube 7, the drainage process is completed. The peritoneal connecting tube 7 is used to connect the peritoneal tube to complete the drainage of the ventricles and peritoneum.

[0038] In order to facilitate connection and use, the ventricle connecting tube 1 and the abdominal cavity connecting tube 7 are both made of flexible hoses.

[0039] A bracket 8 is movably connected to the outside of the pressure chamber 2 near the top. The bracket 8 is specifically a circular bracket, and two connecting shafts are symmetrically fixed to the outside of the pressure chamber 2 near the top. The connecting shafts are rotatably connected in the bracket 8, so that the pressure chamber 2 is suspended by the bracket 8, so that the pressure chamber 2 can be kept in a stable state of being larger at the top and smaller at the bottom to avoid backflow.

[0040] Four adjustment frames 9 are fixed at equal intervals at the bottom end of the bracket 8. The adjustment frames 9 are specifically telescopic adjustment frames with sleeve rods. The installation height of the pressure chamber 2 can be adjusted through the adjustment frames 9, thereby facilitating the normal use of the pressure chamber 2 at different heights.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-controlled ventriculoperitoneal drainage tube, characterized in that: It comprises a cerebral ventricular connecting tube (1), a pressure chamber (2), a control chamber (3), a control component (5), an abdominal cavity connecting tube (7) and a bracket (8); The ventricular connecting tube (1) is fixedly connected to the pressure chamber (2) via a connecting chamber (11); a liquid inlet hole (12) connected to the pressure chamber (2) is provided on the inner bottom surface of the connecting chamber (11); the pressure chamber (2) is specifically a conical hollow chamber; a control chamber (3) is fixed near the bottom end of the pressure chamber (2); and a control component (5) is fixed in the control chamber (3); The control assembly (5) comprises a vertical cylinder (51), a hydraulic control rod (52), a control block (53), a control cylinder (54) and a control rod (55). The vertical cylinder (51) is fixed at the middle of the inner bottom surface of the control chamber (3). The hydraulic control rod (52) is fixed to the inner top surface of the vertical cylinder (51). The control block (53) is fixed to the bottom end of the telescopic shaft of the hydraulic control rod (52). The side wall of the vertical cylinder (51) is symmetrically sleeved with two control rods (55). The inner ends of the control rods (55) abut against the side ends of the control block (53). The two sides of the control block (53) are specifically counterweight blocks with inclined side surfaces. The end surface of one side of the control rod (55) close to the control block (53) is also an inclined surface. The control block (53) and the control rod (55) are used in conjunction with each other. A control cylinder (54) is fixed to the outer end of the control rod (55), and the control cylinder (54) comprises an outer cylinder (541), a control spring (542), a first connecting rod (543) and a second connecting rod (544). The outer cylinder (541) is a hollow cylinder with two ends penetrating therethrough, and the control spring (542) is sleeved inside the outer cylinder (541). The first connecting rod (543) is fixed to one end of the control spring (542), and the first connecting rod (543) is sleeved on a side of the outer cylinder (541) close to the control rod (55). The second connecting rod (544) is fixed to the other end of the control spring (542), and the second connecting rod (544) is sleeved on the other end of the outer cylinder (541), and the outer end of the second connecting rod (544) is fixed to the valve plate (32). Two liquid delivery ports (31) are provided on the side of the control chamber (3) near the bottom end; A valve plate (32) is sleeved in the liquid delivery port (31), the outer end of the control cylinder (54) is connected to the valve plate (32), a plurality of communication holes (33) are provided on the bottom surface of the control chamber (3), the communication holes (33) are connected to the bottom chamber of the pressure chamber (2), a liquid outlet (21) is provided on the bottom chamber of the pressure chamber (2), a collecting chamber (6) is fixed on the outer side of the pressure chamber (2) near the bottom end, and the bottom end of the collecting chamber (6) is fixedly connected to a peritoneal cavity connecting tube (7); A bracket (8) is also movably connected to the outside of the pressure chamber (2) near the top end.

2. A pressure-controlled ventriculoperitoneal drainage tube according to claim 1, characterized in that: A regulating airbag (4) is fixed to the top end of the control chamber (3), an air pressure regulating tube is fixed to the side end of the regulating airbag (4), a middle section of the air pressure regulating tube is fixed to the side wall of the pressure chamber (2), and an outer end of the air pressure regulating tube extends to the outside of the pressure chamber (2).

3. A pressure-controlled ventriculoperitoneal drainage tube according to claim 1, characterized in that: The first connecting rod (543) and the second connecting rod (544) are both square rods, and both ends of the outer cylinder (541) are also provided with square socket holes.

4. A pressure-controlled ventriculoperitoneal drainage tube according to claim 1, characterized in that: The control chamber (3) separates the pressure chamber (2) into two parts: a top chamber and a bottom chamber, and the mass of the bottom of the pressure chamber (2) is greater than the mass of the top.

5. A pressure-controlled ventriculoperitoneal drainage tube according to claim 1, characterized in that: The bracket (8) is specifically a circular bracket, and two connecting shafts are symmetrically fixed on the outside of the pressure chamber (2) near the top, and the connecting shafts are rotatably connected in the bracket (8). Four adjustment brackets (9) are also fixed at equal intervals at the bottom end of the bracket (8).

6. A pressure-controlled ventriculoperitoneal drainage tube according to claim 5, characterized in that: The adjustment frame (9) is specifically a sleeve rod telescopic adjustment frame.

7. A pressure-controlled ventriculoperitoneal drainage tube according to claim 1, characterized in that: The cerebral ventricle connecting tube (1) and the abdominal cavity connecting tube (7) are both made of flexible hoses.

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