A neurosurgical ventricular drain clamping device

Abstract

The application provides a neurosurgical ventricle drainage tube clamping device and belongs to the field of medical instruments. The device comprises three elastic telescopic adsorption mechanisms and three pressing exhaust mechanisms, and is internally provided with a No. 2 hollow shell fixedly installed at the end of an upper hollow rod and in a hollow state, communicating with the internal structure of the upper hollow rod, and a piston plate placed in the No. 2 hollow shell and capable of making the gas in the upper hollow rod be exhausted in the activity process. The device can realize adsorption fixation effect on the outer wall of the soft drainage tube by the suction force of the gas, and the adsorption fixation can effectively ensure the working stability of the drainage tube during work. In addition, the elastic force of the spring can make the drainage tube expand outward at the adsorption fixation position, thereby ensuring the normal drainage efficiency of the inner diameter of the drainage tube.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more specifically, to a clamping device for a neurosurgical ventricle drainage tube. Background Technology

[0002] Ventricular drainage requires fixing the drainage tube to improve the safety and smoothness of drainage. However, traditional fixing methods often use gauze or tape to fix the drainage tube, which is not secure and cannot adjust the height and angle of the drainage tube according to actual needs, resulting in unsatisfactory drainage results.

[0003] To this end, Chinese Patent No. CN217593571U discloses "A clamping device for ventricular drainage tubes in neurosurgery". This clamping device for ventricular drainage tubes in neurosurgery uses a support plate, a connecting rod, a rotating shaft, and an adjusting mechanism. The rotating worm drives the worm wheel to rotate, which in turn rotates the rotating shaft and the support plate, adjusting the distance between the clamping plate and the suction cup, thereby adjusting the support height. At the same time, through the use of a limiting mechanism and an installation mechanism, the angle between the suction cup and the connecting rod can be quickly adjusted, thereby changing the support direction of the clamping plate and adjusting the support angle.

[0004] However, in actual use, when clamping the drainage tube, the clamping effect is achieved using a semi-tubular clamping plate. Typical drainage tube clamps are made of flexible tubing, utilizing its deformability for better drainage. When a rigid clamping plate clamps the tubing, the tubing tends to fold towards the center, resulting in unstable clamping force. Furthermore, this folding obstructs fluid flow, affecting drainage efficiency. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a clamping device for ventricular drainage tubes in neurosurgery.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A neurosurgical ventricle drainage tube clamping device includes a collar body, an integrated outer ring structure of the collar body and a mounting bracket that can be fixedly installed in a corresponding component, three rods arranged in a ring array in the collar body and connected to the first rod through holes of the inner and outer rings of the collar body, and also includes three elastic telescopic adsorption mechanisms and three press-type exhaust mechanisms.

[0008] The elastic telescopic adsorption mechanism includes a first hollow shell fixedly installed at the perforated end of the first rod body and having a hollow interior, a lower hollow rod located at the center of the first hollow shell, penetrating the first hollow shell and capable of moving along the axial direction of the first hollow shell, an upper hollow rod integrally set with the lower hollow rod and connected to the internal structure of the lower hollow rod, an arc-shaped clamping plate fixedly installed at the end of the lower hollow rod and having a hollow interior, and a first helical spring that generates an elastic force on the lower hollow rod away from the axis of the collar body;

[0009] The three press-type exhaust mechanisms include a second hollow outer shell fixedly installed at the end of the upper hollow rod and having a hollow interior, which is connected to the internal structure of the upper hollow rod, and a piston plate placed inside the second hollow outer shell that allows the gas inside the upper hollow rod to be extracted during the movement.

[0010] Optionally, the elastic telescopic adsorption mechanism includes a first hollow outer shell, one end of which is provided with a first fixed plate structure, and the interior of the first hollow outer shell is provided with a first component movable cavity. One end of the first hollow outer shell is provided with a second rod through-hole connecting the first component movable cavity and the first rod through-hole, and the other end is provided with a third rod through-hole connecting the first component movable cavity. An inner movable plate is placed inside the first component movable cavity, and one end of the inner movable plate is provided with a lower through-hole penetrating the second rod through-hole. The upper hollow rod has a hollow rod at one end and a through hole at the other end. The inner movable plate, the upper hollow rod, and the lower hollow rod are provided with a second gas flow chamber. The top of the upper hollow rod is provided with a gas pressure discharge channel that connects to the second gas flow chamber and has a manual valve installed inside. The upper hollow rod has three first gas flow holes on its outer circumference near the gas pressure discharge channel that connect to the second gas flow chamber. The lower hollow rod has a first helical spring fitted around the rod body located inside the first component movable chamber.

[0011] Optionally, the press-type exhaust mechanism includes a fixing ring fixedly installed on the upper hollow rod body. The outer circumferential surface of the fixing ring is provided with a first gas flow channel communicating with a first gas flow hole. The circumferential surface of the fixing ring is provided with a second gas flow channel communicating with the first gas flow hole. A second hollow shell is provided at the end of the second gas flow channel. A gas limiting flow cavity communicating with the hollow structure inside the second hollow shell is provided inside. A second component movable cavity is provided at the end of the gas limiting flow cavity. A fourth rod body through hole communicating with one end of the second component movable cavity is provided inside the second hollow shell. A third gas flow channel communicating with the gas limiting flow cavity is provided on the outer circumferential surface of the second hollow shell. A piston plate and a second helical spring are placed inside the second component movable cavity. One end of the piston plate abuts against the second helical spring. A press-and-extension rod communicating with the fourth rod body through hole is fixedly installed at the other end of the piston plate.

[0012] Optionally, the lower hollow rod has a through hole in the first rod body and an arc-shaped clamping plate is fixedly installed at its end. The arc-shaped clamping plate has an arc-shaped gas reserved cavity inside. The arc-shaped clamping plate has multiple adsorption holes that connect the concave surface of the arc-shaped clamping plate and the concave surface of the arc-shaped gas reserved cavity inside. The arc-shaped clamping plate also has a third gas flow hole that connects the arc-shaped gas reserved cavity and the second gas flow cavity inside.

[0013] Optionally, the structural radius of the concave surface of the arc-shaped clamping plate is consistent with the structural radius of the outer annular structure of the drainage tube.

[0014] Optionally, a first gas check valve is fixedly installed inside the second gas flow channel, and a second gas check valve is fixedly installed inside the third gas flow channel. Optionally, it also includes a pressure control mechanism, which internally comprises a third hollow shell fixedly installed at the end of the first gas flow channel and having a hollow interior; a movable valve plate placed inside the third hollow shell that allows external gas to enter the first gas flow channel when moved; and a third helical spring placed inside the third hollow shell that provides elastic damping for the movable valve plate.

[0015] Optionally, the air pressure control mechanism includes a third hollow shell, inside which is a third component movable cavity. One end of the third hollow shell is provided with a docking pipe, and one end of the docking pipe is provided with a second fixing plate structure. The second fixing plate structure and the docking pipe are provided with a fourth gas flow hole connecting one end of the third component movable cavity and the hollow structure in the first gas flow channel. The other end of the third hollow shell is provided with a fifth gas flow hole connecting the other end of the third component movable cavity. A movable valve plate and a third helical spring are installed inside the third component movable cavity. The circumferential surface of the movable valve plate is provided with multiple concave gas flow grooves. The end of the movable valve plate facing the fifth gas flow hole is provided with a concave annular embedding groove. An annular sealing ring is installed inside the annular embedding groove of the movable valve plate.

[0016] Optionally, the elastic strength of the third helical spring is less than that of the second helical spring.

[0017] Optionally, the thickness of the annular sealing ring is greater than the depth of the annular embedded groove, the structural radius of the inner ring of the annular sealing ring is greater than the structural radius of the fifth gas flow hole, and the structural radius of the outer ring of the annular sealing ring is less than the distance between the gas flow groove and the axis of the movable valve plate.

[0018] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0019] In the above scheme, the suction force of the gas can be used to achieve an adsorption-fixation effect on the outer wall of the soft drainage tube. This adsorption fixation can effectively ensure the working stability of the drainage tube during operation. In addition, the elastic force of the spring can be used to make the drainage tube expand outward at the adsorption fixation point, thereby ensuring the normal drainage efficiency of the inner diameter of the drainage tube.

[0020] By setting up an elastic telescopic adsorption mechanism, when the outer wall of the drainage tube is adsorbed on the inner circumference of the arc-shaped clamping plate, the pressure on the upper hollow rod is released. Under the action of the No. 1 spiral spring, the arc-shaped clamping plate will cause the drainage tube to expand outward, so that the inner diameter of the drainage tube can achieve the normal liquid drainage effect.

[0021] By setting up a press-type exhaust mechanism and a reciprocating press-type telescopic rod, the piston plate will reciprocate under the cooperation of the second helical spring, causing the gas inside the upper hollow rod to be continuously discharged outward. Similarly, the amount of gas inside the arc-shaped gas reserved cavity will decrease until the outer wall of the drainage tube is adsorbed and fixed to the inner circumference of the arc-shaped clamping plate, thereby achieving the effect of gas adsorption and fixation of the drainage tube. Attached Figure Description

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a perspective cross-sectional view of the invention from the right-hand side.

[0025] Figure 3 This is a perspective cross-sectional view of the invention from a frontal viewpoint;

[0026] Figure 4 This is a perspective view of the elastic stretchable adsorption mechanism in this invention;

[0027] Figure 5 This is a three-dimensional cross-sectional view of the elastic stretchable adsorption mechanism in this invention;

[0028] Figure 6 This is a perspective cross-sectional view of the press-type exhaust mechanism in this invention;

[0029] Figure 7 This is a perspective view of the air pressure control mechanism in this invention;

[0030] Figure 8 This is a three-dimensional cross-sectional view of the movable valve plate in this invention.

[0031] [Figure Labels]

[0032] 1. Ring body;

[0033] 2. Install the bracket;

[0034] 3. Drill a hole in rod number one;

[0035] 4. Elastic telescopic adsorption mechanism; 41. Hollow outer shell No. 1; 42. Fixed plate structure No. 1; 43. Movable cavity of component No. 1; 44. Through hole of rod No. 2; 45. Through hole of rod No. 3; 46. Inner movable plate; 47. Upper hollow rod; 48. Gas flow hole No. 1; 49. Gas pressure discharge channel; 410. Lower hollow rod; 411. Helical spring No. 1; 412. Gas flow cavity No. 2; 413. Arc-shaped clamping plate; 414. Arc-shaped gas reserved cavity; 415. Adsorption hole; 416. Gas flow hole No. 3;

[0036] 5. Press-type exhaust mechanism; 51. Fixing ring; 52. Gas flow channel 1; 53. Gas flow channel 2; 54. Hollow outer shell 2; 55. Movable cavity of component 2; 56. Through hole of rod 4; 57. Gas limiting flow cavity; 58. Gas flow channel 3; 59. Gas check valve 1; 510. Gas check valve 2; 511. Piston plate; 512. Helical spring 2; 513. Press-type telescopic rod;

[0037] 6. Air pressure control mechanism; 61. Hollow outer shell No. 3; 62. Connecting pipe; 63. Fixed plate structure No. 2; 64. Gas flow hole No. 4; 65. Gas flow hole No. 5; 66. Movable valve plate; 67. Helical spring No. 3; 68. Annular embedded groove; 69. Gas flow groove; 610. Annular sealing ring; 611. Movable cavity of component No. 3.

[0038] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0040] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, the implementation of such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described, should be within the knowledge of those skilled in the art.

[0041] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0042] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0043] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0044] like Figures 1 to 8 As shown, this embodiment of the invention provides a neurosurgical ventricle drainage tube clamping device, including a collar body 1, an integrated mounting bracket 2 disposed in the outer ring structure of the collar body 1 and capable of being fixedly installed in the corresponding component, and three rod through holes 3 arranged in a ring array in the collar body 1 and connecting the inner and outer rings of the collar body 1. The mounting bracket 2 is fixedly installed on a universal bracket that can control the angle and distance, and the universal bracket is fixedly installed in the working area. The universal bracket adopts the prior art, which will not be described in detail here.

[0045] like Figures 1 to 5 As shown, in order to achieve the expansion effect of the hose, three elastic telescopic adsorption mechanisms 4 need to be set up. The elastic telescopic adsorption mechanism 4 includes a first hollow shell 41 fixedly installed at the end of the first rod body through hole 3 and having a hollow interior; a lower hollow rod 410 located at the center of the first hollow shell 41, penetrating the first hollow shell 41 and capable of moving along the axial direction of the first hollow shell 41; an upper hollow rod 47 integrally set with the lower hollow rod 410 and connected to the internal structure of the lower hollow rod 410; and an arc-shaped clamping plate fixedly installed at the end of the lower hollow rod 410 and having a hollow interior. 413, the first helical spring 411, which exerts an elastic force on the lower hollow rod 410 away from the axis of the collar body 1, presses the upper hollow rod 47 towards the center, so that the outer wall of the drainage tube hose is attached to the inner circumference of the arc-shaped clamping plate 413. When the outer wall of the drainage tube is attached to the inner circumference of the arc-shaped clamping plate 413, the pressure on the upper hollow rod 47 is released. Under the action of the first helical spring 411, the arc-shaped clamping plate 413 will cause the drainage tube to expand outward, so that the inner diameter of the drainage tube can normally achieve the effect of liquid drainage.

[0046] like Figure 4 and Figure 5 As shown, the elastic telescopic adsorption mechanism 4 includes a first hollow outer shell 41. One end of the first hollow outer shell 41 is provided with a first fixing plate structure 42, integrally structured with it and fixedly installed at the end of the first rod through hole 3. The interior of the first hollow outer shell 41 is provided with a first component movable cavity 43. One end of the first hollow outer shell 41 is provided with a second rod through hole 44 connecting one end of the first component movable cavity 43 and the first rod through hole 3. The other end of the first hollow outer shell 41 is provided with a connection to the external space and the other end of the first component movable cavity 43. The third rod has a through hole 45 at one end. The first hollow outer shell 41 houses an inner movable plate 46 located inside the first component's movable cavity 43, capable of moving axially along the cavity. One end of the inner movable plate 46 is provided with a lower hollow rod 410 integrally formed with it and passing through the second rod's through hole 44. The other end of the inner movable plate 46 is provided with an upper hollow rod 47 integrally formed with it and passing through the third rod's through hole 45. The inner movable plate 46, the upper hollow rod 47, and the lower hollow rod 410 each have an open end. The second gas flow chamber 412 has a pressure discharge channel 49 at the top of the upper hollow rod 47, which is connected to the second gas flow chamber 412 and has a manual valve installed inside. The upper hollow rod 47 has three first gas flow holes 48 on its outer circumference near the pressure discharge channel 49, which are connected to the external space and the second gas flow chamber 412. The lower hollow rod 410 has a first helical spring 411 in a compressed state placed around the rod body located inside the first component movable cavity 43. The rod body of the lower hollow rod 410 passes through the first rod body through hole. 3. An arc-shaped clamping plate 413 is fixedly installed at the end. An arc-shaped gas reserved cavity 414 is provided inside the arc-shaped clamping plate 413. Multiple adsorption holes 415 are provided inside the arc-shaped clamping plate 413 and the concave surface of the arc-shaped clamping plate 413 and the concave surface of the arc-shaped gas reserved cavity 414. A third gas flow hole 416 is provided inside the arc-shaped clamping plate 413 and the second gas flow cavity 412. The structural radius of the concave surface of the arc-shaped clamping plate 413 is consistent with the outer annular structural radius of the drainage tube.

[0047] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, to achieve the gas adsorption-type fixation effect on the drainage tube, three press-type exhaust mechanisms 5 are required. Each press-type exhaust mechanism 5 includes a second hollow outer shell 54 fixedly installed at the end of the upper hollow rod 47 and having a hollow interior, connecting to the internal structure of the upper hollow rod 47; a piston plate 511 placed inside the second hollow outer shell 54, which, during movement, allows the gas inside the upper hollow rod 47 to be extracted. When the outer wall of the drainage tube abuts against the inner circumference of the arc-shaped clamping plate 413, the reciprocating press of the telescopic rod 513, in conjunction with the second helical spring 512, causes the piston plate 511 to move backward. During the reciprocating motion, as the piston plate 511 moves, the gas enters the gas limiting flow chamber 57 through the first gas flow hole 48 and the first gas one-way valve 59. After passing through the gas limiting flow chamber 57 and the second gas one-way valve 510, the gas is discharged to the outside space, causing the gas inside the upper hollow rod 47 to be continuously discharged outward. Similarly, this reduces the amount of gas inside the arc-shaped gas reserved chamber 414 until the outer wall of the drainage tube is adsorbed and fixed to the inner circumference of the arc-shaped clamping plate 413. At this point, the pressing of the telescopic rod 513 can be stopped, thereby achieving the gas adsorption and fixing effect on the drainage tube.

[0048] like Figure 6As shown, the press-type exhaust mechanism 5 includes a fixing ring 51 fixedly installed on the upper hollow rod 47. The outer circumferential surface of the fixing ring 51 is provided with a first gas flow channel 52 that connects to the external space and one of the first gas flow holes 48. The circumferential surface of the fixing ring 51 is provided with two symmetrical second gas flow channels 53 whose internal structures connect to the other two first gas flow holes 48. Each end of the second gas flow channel 53 is provided with a second hollow shell 54. The interior of the second hollow shell 54 is provided with a gas limiting flow cavity 57 that connects to the hollow structure inside the second gas flow channel 53. The end of each gas limiting flow cavity 57 is provided with a second component movable cavity 55. The interior of the second hollow shell 54 is provided with a fourth rod through hole 56 that connects to the external space and one end of the second component movable cavity 55. The outer circumference of the second hollow shell 54 is provided with a third gas flow channel 58 that connects to the external space and the gas limiting flow cavity 57. Inside the second hollow shell 54, a piston plate 511 capable of moving axially along the second component movable cavity 55 is placed. A second helical spring 512 is installed inside the second component movable cavity 55. One end of the piston plate 511 presses against one end of the second helical spring 512 which is in a compressed state, and the other end of the second helical spring 512 presses against the inner wall of the second component movable cavity 55. A pressing telescopic rod 513 that passes through the fourth rod body through the perforation 56 is fixedly installed at the other end of the piston plate 511. A first gas one-way valve 59 is fixedly installed inside the second gas flow channel 53, and a second gas one-way valve 510 is fixedly installed inside the third gas flow channel 58.

[0049] like Figures 1 to 3 , Figure 7 and Figure 8As shown, in order to prevent the drainage tube from being damaged due to excessive gas suction, a gas pressure control mechanism 6 needs to be set up. The gas pressure control mechanism 6 includes a third hollow shell 61 that is fixedly installed at the end of the first gas flow channel 52 and is hollow inside, a movable valve plate 66 that is placed inside the third hollow shell 61 and allows external gas to enter the first gas flow channel 52 when it moves, and a third helical spring 67 that is placed inside the third hollow shell 61 and can provide elastic damping for the movable valve plate 66. As the gas pressure decreases, the negative pressure affects the gas pressure inside the movable chamber 611 of component 3 through the first gas flow channel 52. This gas pressure acts on the surface of the movable valve plate 66, generating suction on the movable valve plate 66. When this suction exceeds the elastic strength of the third helical spring 67, external gas will enter through the fifth gas flow hole 65, the movement gap of the movable valve plate 66, the gas flow groove 69, etc., and flow back into the second gas flow chamber 412, and finally enter the arc-shaped gas reserved chamber 414. This reduces the suction of the gas on the outer wall of the drainage tube, thereby preventing the drainage tube from being damaged due to excessive gas suction.

[0050] like Figure 7 and Figure 8As shown, the air pressure control mechanism 6 includes a third hollow outer shell 61. Inside the third hollow outer shell 61 is a third component movable cavity 611. One end of the third hollow outer shell 61 is provided with a docking pipe 62 integrally formed therewith. One end of the docking pipe 62 is provided with a second fixing plate structure 63 integrally formed therewith and fixedly installed at the end of a first gas flow channel 52. Inside the second fixing plate structure 63 and the docking pipe 62 are a fourth gas flow hole 64 connecting one end of the third component movable cavity 611 and the hollow structure in the first gas flow channel 52. The other end of the third hollow outer shell 61 is provided with a fifth gas flow hole 65 connecting the external space and the other end of the third component movable cavity 611. Inside the third component movable cavity 611, a movable valve plate 66 capable of moving axially along the third component movable cavity 611 is housed. The movable valve plate 66 has a compressed helical spring 67 at one end facing the fourth gas flow hole 64. The circumferential surface of the movable valve plate 66 has multiple concave gas flow grooves 69. The end of the movable valve plate 66 facing the fifth gas flow hole 65 has a concave annular embedding groove 68. An annular sealing ring 610 is installed inside the annular embedding groove 68. The elastic strength of the third helical spring 67 is less than that of the second helical spring 512. The thickness of the annular sealing ring 610 is greater than the depth of the annular embedding groove 68. The structural radius of the inner ring of the annular sealing ring 610 is greater than the structural radius of the fifth gas flow hole 65, and the structural radius of the outer ring of the annular sealing ring 610 is less than the distance between the gas flow grooves 69 and the axis of the movable valve plate 66.

[0051] The workflow of the technical solution provided by this invention is as follows:

[0052] In use, the mounting bracket 2 is installed on the fixed end of the universal bracket that can control the angle and distance, and the universal bracket is fixedly installed in the working area, with the hollow rod 47 installed on the universal bracket.

[0053] When the outer wall of the drainage tube abuts against the inner circumference of the arc-shaped clamping plate 413, the reciprocating pressing telescopic rod 513, in cooperation with the second helical spring 512, will cause the piston plate 511 to reciprocate. During the movement of the piston plate 511, the gas inside the upper hollow rod 47 will be continuously discharged outward, and similarly, the amount of gas inside the arc-shaped gas reserved cavity 414 will decrease until the outer wall of the drainage tube is adsorbed and fixed at the inner circumference of the arc-shaped clamping plate 413, at which point the pressing of the telescopic rod 513 can be stopped.

[0054] When the outer wall of the drainage tube is adsorbed onto the inner circumference of the arc-shaped clamping plate 413, the pressure applied to the upper hollow rod 47 is released. Under the action of the first helical spring 411, the arc-shaped clamping plate 413 will cause the drainage tube to expand outward, thereby enabling the inner diameter of the drainage tube to achieve the normal drainage effect of the liquid.

[0055] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A neurosurgical ventricular drainage tube clamping device, comprising a collar body, an integrally formed outer ring structure of the collar body capable of being fixedly installed in a corresponding component, and three rods arranged in a ring array within the collar body and communicating with the first rod through holes of the inner and outer rings of the collar body, characterized in that... It also includes three elastic telescopic adsorption mechanisms and three press-type exhaust mechanisms; The elastic telescopic adsorption mechanism includes a first hollow shell fixedly installed at the perforated end of the first rod body and having a hollow interior, a lower hollow rod located at the center of the first hollow shell, penetrating the first hollow shell and capable of moving along the axial direction of the first hollow shell, an upper hollow rod integrally set with the lower hollow rod and connected to the internal structure of the lower hollow rod, an arc-shaped clamping plate fixedly installed at the end of the lower hollow rod and having a hollow interior, and a first helical spring that generates an elastic force on the lower hollow rod away from the axis of the collar body; The three press-type exhaust mechanisms include a second hollow shell that is fixedly installed at the end of the upper hollow rod and is hollow inside, and is connected to the internal structure of the upper hollow rod; and a piston plate that is placed inside the second hollow shell and can extract the gas inside the upper hollow rod during the movement. The press-type exhaust mechanism includes a fixed ring fixedly installed on the upper hollow rod body. The outer circumferential surface of the fixed ring is provided with a first gas flow channel connecting to the first gas flow hole. The circumferential surface of the fixed ring is provided with a second gas flow channel connecting to the first gas flow hole. The end of the second gas flow channel is provided with a second hollow shell. The interior of the second hollow shell is provided with a gas limiting flow cavity connecting to the hollow structure inside the second gas flow channel. The end of the gas limiting flow cavity is provided with a second component movable cavity. The interior of the second hollow shell is provided with a fourth rod body through hole connecting to one end of the second component movable cavity. The outer circumferential surface of the second hollow shell is provided with a third gas flow channel connecting to the gas limiting flow cavity. A piston plate and a second helical spring are placed inside the second component movable cavity. One end of the piston plate abuts against the second helical spring, and the other end of the piston plate is fixedly installed with a press-telescopic rod passing through the fourth rod body through hole. The pneumatic control mechanism is equipped with a hollow shell No. 3 that is fixedly installed at the end of the No. 1 gas flow channel and is hollow inside, a movable valve plate that is placed inside the hollow shell No. 3 and allows external gas to enter the No. 1 gas flow channel when it moves, and a helical spring No. 3 that is placed inside the hollow shell No. 3 and can provide elastic damping for the movable valve plate. The arc-shaped clamping plate has an arc-shaped gas reserved cavity inside. The arc-shaped clamping plate also has multiple adsorption holes that connect the concave surface of the arc-shaped clamping plate and the concave surface of the arc-shaped gas reserved cavity. The arc-shaped clamping plate also has a third gas flow hole that connects the arc-shaped gas reserved cavity and the second gas flow cavity.

2. The neurosurgical ventricular drainage tube clamping device according to claim 1, characterized in that, The elastic telescopic adsorption mechanism includes a first hollow outer shell, with a first fixed plate structure at one end. A first component movable cavity is provided inside the first hollow outer shell. One end of the first hollow outer shell has a second rod through-hole connecting the first component movable cavity and the first rod through-hole, and the other end has a third rod through-hole connecting the first component movable cavity. An inner movable plate is placed inside the first component movable cavity, and one end of the inner movable plate has a lower hollow section penetrating the second rod through-hole. The rod has a hollow upper rod at one end, which is provided with a through hole in the third rod body. The inner movable plate, the upper hollow rod, and the lower hollow rod are provided with a second gas flow chamber. The top of the upper hollow rod is provided with a gas pressure discharge channel that connects to the second gas flow chamber and has a manual valve installed inside. The upper hollow rod has three first gas flow holes on its outer circumference near the gas pressure discharge channel that connect to the second gas flow chamber. The lower hollow rod has a first helical spring fitted around the rod body located inside the first component movable chamber.

3. The neurosurgical ventricular drainage tube clamping device according to claim 2, characterized in that, The lower hollow rod has a through hole in the first rod and an arc-shaped clamping plate is fixedly installed at its end.

4. The neurosurgical ventricular drainage tube clamping device according to claim 3, characterized in that, The concave surface radius of the arc-shaped clamping plate is consistent with the outer annular structural radius of the drainage tube.

5. The neurosurgical ventricular drainage tube clamping device according to claim 2, characterized in that, A first gas check valve is fixedly installed inside the second gas flow channel, and a second gas check valve is fixedly installed inside the third gas flow channel.

6. The neurosurgical ventricular drainage tube clamping device according to claim 5, characterized in that, The air pressure control mechanism includes a third hollow shell, inside which is a third component movable cavity. A docking pipe is located at one end of the third hollow shell, and a second fixing plate structure is located at one end of the docking pipe. A fourth gas flow hole, connecting one end of the third component movable cavity to a hollow structure in the first gas flow channel, is located inside the second fixing plate structure and the docking pipe. A fifth gas flow hole, connecting the other end of the third hollow shell to the other end of the third component movable cavity, is located at the other end of the third component movable cavity. A movable valve plate and a third helical spring are housed inside the third component movable cavity. Multiple concave gas flow grooves are provided on the circumferential surface of the movable valve plate. A concave annular embedding groove is provided at the end of the movable valve plate facing the fifth gas flow hole. An annular sealing ring is installed inside the annular embedding groove of the movable valve plate.

7. The neurosurgical ventricular drainage tube clamping device according to claim 6, characterized in that, The elastic strength of the No. 3 helical spring is less than that of the No. 2 helical spring.

8. The neurosurgical ventricular drainage tube clamping device according to claim 7, characterized in that, The thickness of the annular sealing ring is greater than the depth of the annular embedded groove, the structural radius of the inner ring of the annular sealing ring is greater than the structural radius of the No. 5 gas flow hole, and the structural radius of the outer ring of the annular sealing ring is less than the distance between the gas flow groove and the axis of the movable valve plate.

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