Pressure regulating ball valve and pressure regulating system for cerebrospinal fluid shunting device

Abstract

The invention relates to the technical field of shunting devices for medical surgery, in particular to a pressure regulating ball valve and a pressure regulating system for a cerebrospinal fluid shunting device. The side wall of the valve body is provided with an inlet and outlet, and the bottom is provided with a first gear locking structure. The pressure regulating assembly is arranged in the valve body. The ball is arranged in the inlet. A spiral groove is formed in the peripheral wall of the pressure regulating rotor, a second gear locking structure is arranged at the bottom of the pressure regulating rotor, and the pressure regulating rotor can ascend and descend to be in a rotating pressure regulating state and a locking state. The first end of the lever-type elastic piece is in sliding fit in the spiral groove, and the second end abuts against the top of the ball. And when the pressure regulating rotor is in a rotary pressure regulating state, the first gear locking structure is separated from the second gear locking structure, and the pressure regulating rotor can rotate around the vertical axis and drive the lever type elastic piece to slide and lift along the spiral groove. And when the pressure regulating rotor is in a locking state, the first gear locking structure is jointed with the second gear locking structure. Therefore, one-way circulation of cerebrospinal fluid can be achieved, multi-pressure gears and high-precision adjustment are met, and the magnetic field interference resistance is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical surgical shunt devices, and particularly relates to a pressure regulating ball valve and a pressure regulating system for a cerebrospinal fluid shunt device. BACKGROUND

[0002] The cerebrospinal fluid shunt device is used for draining cerebrospinal fluid of a patient with hydrocephalus into other organs of the human body for absorption through a shunt tube and a valve system and a subcutaneous tunnel, and particularly for draining the cerebrospinal fluid into the abdominal cavity for absorption, so as to reduce intracranial pressure or alleviate the clinical symptoms of the patient with hydrocephalus. The valve is an important component of the shunt device, and is divided into two categories: a constant pressure valve and an adjustable pressure valve. The pressure threshold of the constant pressure valve is determined by the internal structure of the shunt pump, and cannot be flexibly adjusted according to individual differences and changes in the condition of the patient. The adjustable pressure valve can adjust the shunt pressure by a manual or automatic method, and control the flow of cerebrospinal fluid to adapt to different patient needs.

[0003] However, the existing adjustable pressure valve products have the problems of low pressure regulating precision caused by few adjustable gears, and poor anti-magnetic field interference ability caused by the inability to maintain the pressure due to the interference of the external magnetic field, and cannot meet the needs of doctors in actual treatment for multiple pressure gears, high-precision adjustment and strong anti-interference ability. Therefore, it is crucial to develop an adjustable pressure valve with multiple gears, high precision and strong anti-magnetic field ability for the cerebrospinal fluid shunt device. SUMMARY

[0004] Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present application provides a pressure regulating ball valve and a pressure regulating system for a cerebrospinal fluid shunt device, which is mainly used for the human body, and solves the technical problems of the existing adjustable pressure valve products, such as low pressure regulating precision caused by few adjustable gears, and interference of the external magnetic field.

[0005] Technical scheme

[0006] In order to achieve the above-mentioned purposes, the main technical scheme adopted by the present application comprises: In a first aspect, the present application provides a pressure regulating ball valve for a cerebrospinal fluid shunt device, comprising: a valve body, a side wall of which is provided with an inlet and an outlet in communication with the inside thereof, and an inner bottom wall of which is provided with a first gear locking structure; a pressure regulating assembly arranged in the valve body and comprising: a ball arranged in the inlet and capable of opening and closing the inlet; a pressure regulating rotor, a peripheral wall of which is provided with a spiral groove, and a bottom of which is provided with a second gear locking structure and capable of being moved up and down to be in a rotating pressure regulating state and a locking state; The lever spring is slidably fitted in the spiral groove at a first end and abuts against the top of the ball at a second end, and a portion between the first end and the second end is supported on the valve body; When the pressure regulating rotor is in the rotational pressure regulating state, the first gear locking structure and the second gear locking structure are disengaged, the pressure regulating rotor can rotate around the vertical axis and drive the lever spring to slide up and down along the spiral groove; When the pressure regulating rotor is in the locked state, the first gear locking structure and the second gear locking structure are engaged.

[0007] According to the present application, the inner bottom wall of the valve body is provided with an annular locking platform, and the first gear locking structure is located in the locking platform; The lower part of the pressure regulating rotor is located in the locking platform in the rotational pressure regulating state and the locked state.

[0008] According to the present application, the first gear locking structure is a plurality of gear slots arranged in a circumferential direction on the inner periphery of the locking platform, and the second gear locking structure is an insertion block arranged on the bottom of the pressure regulating rotor; or, The first gear locking structure is an insertion block arranged on the inner bottom wall of the valve body, and the second gear locking structure is a plurality of gear slots arranged in a circumferential direction on the bottom of the pressure regulating rotor.

[0009] According to the present application, the inner periphery of the locking platform is provided with two limiting walls, and the two limiting walls are located at the two ends of the plurality of gear slots; When the insertion block on the pressure regulating rotor abuts against one of the two limiting walls, the first end of the lever spring is located at the highest position or the lowest position in the spiral groove.

[0010] According to the present application, a first magnet is arranged on the pressure regulating rotor, and an elastic member is arranged between the pressure regulating rotor and the top wall of the valve body; The first magnet can drive the pressure regulating rotor to move upwards and rotate around the vertical axis under the action of a second magnet arranged outside the top wall of the valve body, and the elastic member is compressed; When the first magnet is out of the action of the second magnet, the elastic member rebounds and drives the pressure regulating rotor to move downwards to the locked state.

[0011] According to the present application, the elastic member is a coil spring; The top of the pressure regulating rotor is provided with a boss, and the inner top wall of the valve body is provided with a limiting hole; The larger diameter end of the coil spring is inserted into the limiting hole, and the smaller diameter end of the coil spring is sleeved outside the boss.

[0012] According to the present application, the lever spring sheet comprises a spring sheet body and two connecting arms extending from the spring sheet body to both sides; The first end of the spring sheet body is slidingly fitted in the spiral groove, and the second end abuts against the top of the ball; and the connecting arms are provided with limiting grooves on the side close to the spring sheet body. The inner bottom wall of the valve body is provided with a spring sheet fixing frame; the spring sheet fixing frame comprises a supporting table and two vertical insertion rods on both sides of the supporting table. The supporting table is used for supporting the part of the spring sheet body between the first end and the second end, and the vertical insertion rods are inserted into the limiting grooves.

[0013] According to the present application, the first end of the spring sheet body is rectangular, the second end is circular, a hemispherical protrusion is arranged on the first end, and the hemispherical protrusion abuts against the inner wall of the spiral groove.

[0014] According to the present application, the inlet is provided with a tapered hole which is radially contracted downward, the ball is inserted into the tapered hole and protrudes from the top of the tapered hole. The inlet is provided with an inflow joint, the outlet is provided with an outflow joint, and the outflow joint is higher than the inflow joint.

[0015] In the second aspect, the present application provides a pressure regulating system, which comprises a pressure regulating ball valve for a cerebrospinal fluid shunt device and a magnetic activation assembly. The magnetic activation assembly comprises a first housing and a rotating block rotatably connected to the first housing. A second magnet is arranged on the rotating block, and the second magnet can magnetically attract the pressure regulating rotor to drive the pressure regulating rotor to move upward and rotate around a vertical axis.

[0016] Advantages

[0017] The present pressure regulating ball valve is pre-buried in the skin of a patient during use, and the cerebrospinal fluid can flow into the valve cavity by flowing into the inlet and pushing the ball to float and the lever spring sheet to elastically deform, thereby realizing one-way flow of the cerebrospinal fluid. During use of the present pressure regulating ball valve, the first end of the lever spring sheet can linearly slide along the spiral groove, and the second end can linearly rise and fall, thereby linearly adjusting different pressure values applied by the lever spring sheet to the ball. Multiple adjustable pressure grades can be set accordingly to meet the needs of multiple adjustable pressure grades required for treatment, thereby improving the pressure regulating precision and meeting the needs of doctors for multiple pressure grades and high-precision adjustment in actual treatment, so as to improve the treatment effect. Meanwhile, after adjustment of the present pressure regulating ball valve is completed, the combination of the first grade locking structure and the second grade locking structure can be locked to prevent the pressure regulating rotor from rotating due to external electromagnetic interference, thereby improving the anti-magnetic field interference ability and ensuring the continuous and reliable treatment pressure. In addition, the present pressure regulating ball valve has a simple structure, is easy to process, and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a perspective view of Embodiment 1 of the pressure regulating ball valve of the present invention; Figure 2 for Figure 1 A sectional view; Figure 3 This is a top view of the shell; Figure 4 for Figure 3 Sectional front view; Figure 5 for Figure 3 A sectional side view; Figure 6 A three-dimensional view of the inflow and outflow connectors; Figure 7 This is a 3D view of the top cover; Figure 8 This is a 3D view of the voltage regulating rotor; Figure 9 for Figure 8 A bottom view; Figure 10 for Figure 8 The main view; Figure 11 A three-dimensional diagram of a tower spring; Figure 12 This is a three-dimensional diagram of a lever-type spring. Figure 13 A schematic diagram showing the positions of the magnetic activation component and the pressure regulating valve body; Figure 14 A cross-sectional view of the magnetic activation component; Figure 15 A schematic diagram showing the positions of the indicator and the pressure regulating valve body; Figure 16 This is a bottom view of the indicator; Figure 17 Assembly drawing of the housing and voltage regulating assembly; Figure 18 for Figure 17 Top view; Figure 19 This is an assembly drawing of the lever-type spring, ball, and voltage-regulating rotor; Figure 20 This is a top view of a pressure regulating rotor with 8 pressure regulation levels; Figure 21 for Figure 20 The circumferential development diagram of the voltage regulating rotor in the middle; Figure 22 This is a top view of a pressure regulating rotor with 12 pressure regulation levels; Figure 23 for Figure 22A circumferential development of the pressure regulating rotor in Figure 24 A plan view of a pressure regulating rotor with 18 pressure regulating positions; Figure 25 A plan view of a pressure regulating rotor with Figure 24 A circumferential development of the pressure regulating rotor in

[0019] LIST OF REFERENCE NUMERALS 1: valve body; 11: housing; 111: inlet; 1111: conical hole; 112: outlet; 113: annular limiting groove; 12: top cover; 121: limiting hole; 122: annular insertion station; 13: locking station; 131: stop block; 132: position slot; 133: limiting wall; 14: limiting shaft; 15: elastic sheet fixing frame; 151: vertical insertion rod; 152: support station; 2: pressure regulating assembly; 21: ball; 22: pressure regulating rotor; 221: helical groove; 222: insertion block; 223: insertion slot; 224: first magnet; 225: mounting slot; 226: boss; 23: lever type elastic sheet; 231: elastic sheet body; 232: connecting arm; 2321: limiting groove; 24: elastic member; 31: inflow connector; 32: outflow connector; 4: magnetically activated assembly; 41: first housing; 42: rotating block; 421: second magnet; 43: rotating wheel; 44: gear set; 5: indicator; 51: second housing; 52: rotating rod; 53: dial. DETAILED DESCRIPTION

[0020] In order to better explain the present application, so as to be understood, the following specific embodiments, combined with the drawings, are described in detail. In this paper, the orientation of "up", "down" and other orientation terms are referred to the orientation of the drawings. Figure 2

[0021] Example one Referring to Figures 1-25 The pressure regulating ball valve of the human cerebrospinal fluid shunt device according to the embodiments of the present application comprises a valve body 1 and a pressure regulating assembly 2.

[0022] ​The side wall of the valve body 1 is provided with an inlet 111 and an outlet 112 which are in communication with the interior of the valve body 1, and the inner bottom wall is provided with a first gear locking structure. The pressure regulating assembly 2 is arranged in the valve body 1, and the pressure regulating assembly 2 comprises a ball 21, a pressure regulating rotor 22 and a lever spring 23. The ball 21 is arranged in the inlet 111 and can open and close the inlet 111. The pressure regulating rotor 22 can be lifted to be in a rotating pressure regulating state and a locking state, the peripheral wall of the pressure regulating rotor 22 is provided with a spiral groove 221, the bottom is provided with a second gear locking structure, and the pressure regulating rotor 22 can be lifted to be in the rotating pressure regulating state and the locking state. The first end of the lever spring 23 is slidingly fitted in the spiral groove 221, the second end abuts against the top of the ball 21, and the part between the first end and the second end of the lever spring 23 is supported on the valve body 1.

[0023] In use, the pressure regulating ball valve is embedded in the skin of a patient, and the cerebrospinal fluid can flow into the valve cavity by the inlet 111, push the ball 21 to float up and make the lever spring 23 elastically deform, so as to realize the one-way flow of the cerebrospinal fluid. By adjusting the pressure applied by the lever spring 23 on the ball 21, the flow rate of the cerebrospinal fluid entering the valve cavity is adjusted, and the flow rate is proportional to the pressure with which the ball 21 is pushed to float up. The pressure regulating mode is as follows: In the initial state, the first gear locking structure and the second gear locking structure are engaged, and the pressure regulating rotor 22 is in the locking state.

[0024] When the patient configured with the pressure regulating ball valve has a body position pressure difference, the flow rate of the cerebrospinal fluid is too fast or too slow: the pressure regulating rotor 22 can be lifted to drive the first gear locking structure and the second gear locking structure to disengage, so that the pressure regulating rotor 22 is switched from the locking state to the rotating pressure regulating state. The pressure regulating rotor 22 can be rotated around the vertical axis to drive the first end of the lever spring 23 to slide up and down along the spiral groove 221, drive the second end of the lever spring 23 to rise and fall, and then change the pressure applied by the lever spring 23 on the ball 21. When the first end of the lever spring 23 rises, the second end falls. When the first end of the lever spring 23 falls, the second end rises.

[0025] After the pressure regulation is completed, the pressure regulating rotor 22 can be lowered to drive the first gear locking structure and the second gear locking structure to engage, so as to limit the pressure regulating rotor 22 in the circumferential direction, and then switch the pressure regulating rotor 22 from the rotating pressure regulating state to the locking state.

[0026] Based on the above setting, the first end of the lever spring 23 can linearly slide along the spiral groove 221, and the second end can linearly rise and fall accordingly, to linearly adjust the different pressure values applied by the lever spring 23 on the ball 21. A plurality of adjustable pressure grades can be set accordingly to meet the needs of treatment, thereby improving the pressure adjustment precision and meeting the needs of doctors for multiple pressure grades and high-precision adjustment in actual treatment, to improve the treatment effect. At the same time, after the adjustment of the pressure regulating ball valve is completed, the combination locking of the first grade locking structure and the second grade locking structure can be locked to avoid the rotation of the pressure regulating rotor 22 due to external electromagnetic interference, thereby improving the anti-magnetic field interference ability and ensuring the continuous and reliable treatment pressure. In addition, the pressure regulating ball valve has a simple structure, is easy to process, and is easy to operate.

[0027] Referring to Figure 3 Further, the inner wall of the valve body 1 is provided with an annular locking table 13, and the first grade locking structure is located in the locking table 13. The lower part of the pressure regulating rotor 22 is located in the locking table 13 in the rotating pressure regulating state and the locking state.

[0028] When the pressure regulating rotor 22 moves upward and switches to the rotating pressure regulating state, the pressure regulating rotor 22 will not be separated from the locking table 13, avoiding the displacement of the pressure regulating rotor 22 to cause the first grade locking structure and the second grade locking structure to be unable to be combined and locked, so as to ensure the reliability of the pressure regulating grade.

[0029] Specifically, the structure of the first grade locking structure and the second grade locking structure includes the following two setting forms: The first setting form is that the first grade locking structure is a plurality of grade grooves 132 arranged along the inner periphery of the locking table 13, and the second grade locking structure is an insertion block 222 arranged on the bottom of the pressure regulating rotor 22. The insertion block 222 can protrude radially outward from the lower peripheral wall of the pressure regulating rotor 22, or can protrude downward from the bottom wall of the pressure regulating rotor 22.

[0030] More specifically, a plurality of stop blocks 131 are arranged along the inner periphery of the locking table 13, and the grade grooves 132 are formed between adjacent stop blocks 131.

[0031] Referring to Figure 3 Preferably, the inner periphery of the locking table 13 is provided with two limiting walls 133 located at the two ends of the plurality of grade grooves 132. When the insertion block 222 on the pressure regulating rotor 22 abuts against one of the two limiting walls 133, the first end of the lever spring 23 is located at the highest position or the lowest position in the spiral groove 221, to limit the rotation of the pressure regulating rotor 22.

[0032] The second setting form is that the first gear locking structure is the plug 222 arranged on the bottom wall of the valve body 1, and the second gear locking structure is the plurality of gear grooves 132 arranged on the bottom of the pressure regulating rotor 22 in a circumferential direction.

[0033] Based on the above two setting modes, when the pressure regulating rotor 22 is in the locking state, the plug 222 is inserted into any gear groove 132. When the pressure regulating rotor 22 moves upward, the plug 222 can be separated from the gear groove 132, so that the pressure regulating rotor 22 is switched from the locking state to the rotating pressure regulating state. When the pressure regulating rotor 22 moves downward, the plug 222 can be inserted into any gear groove 132, so that the pressure regulating rotor 22 is switched from the rotating pressure regulating state to the locking state.

[0034] It should be noted that the number of gear grooves 132 of the pressure regulating ball valve can be set according to the required pressure regulating gears. It should be noted that when the plug 222 is rotated to different gear grooves 132 when the pressure regulating rotor 22 rotates, different pressure values can be applied to the ball 21 by the lever spring 23. The number of gear grooves 132 is consistent with the number of adjustable pressure gears. The pressure values applied to the ball 21 by the lever spring 23 corresponding to different gear grooves 132 can be determined by experiments.

[0035] Preferably, the gear grooves 132 are preferably 8-12, i.e. 8-12 gears of pressure regulation can be achieved. Of course, the number of settings is only an example, and can be set according to actual needs.

[0036] Referring to Figures 20-21 When the pressure regulating rotor 22 has a total of 8 gears of pressure regulation (i.e. 8 gear grooves 132), the pressure regulating rotor 22 is switched by 33.75° for each gear, and the heights of the spiral grooves 221 corresponding to the gears a-g (i.e. the heights of the first ends of the lever springs 23) are 0.5-0.6mm, 0.77-0.87mm, 1.05-1.15mm, 1.29-1.39mm, 1.50-1.60mm, 1.67-1.77mm, 1.82-1.92mm, and 1.95-2.05mm, respectively. Correspondingly, the pressure values applied to the ball 21 by the lever springs 23 corresponding to the gears a-g are 80-90mmH2O, 95-105mmH2O, 115-125mmH2O, 130-140mmH2O, 145-155mmH2O, 160-170mmH2O, 175-185mmH2O, and 190-195mmH2O, respectively. Preferably, the heights of the spiral grooves 221 corresponding to the gears a-g are 0.5mm, 0.82mm, 1.1mm, 1.34mm, 1.55mm, 1.72mm, 1.87mm, and 2mm, respectively.

[0037] Referring to Figures 22-23 When the pressure regulating rotor 22 has a total of 12 gears (i.e. 12 gear slots 132 are provided), the pressure regulating rotor 22 switches a gear every 22.5° of rotation, and the height of the helical groove 221 corresponding to the a-k gears (i.e. the height of the first end of the lever spring 23) is in turn: 0.5-0.6mm, 0.65-0.75mm, 0.85-0.95mm, 1.02-1.12mm, 1.18-1.28mm, 1.33-1.43mm, 1.45-1.55mm, 1.58-1.68mm, 1.69-1.79mm, 1.78-1.88mm, 1.87-1.97mm, 1.95-2.05mm. Correspondingly, the pressure value exerted by the lever spring 23 on the ball 21 corresponding to the a-k gears is in turn: 80-90mmH2O, 90-100mmH2O, 100-110mmH2O, 110-120mmH2O, 120-130mmH2O, 130-140mmH2O, 140-150mmH2O, 150-160mmH2O, 160-170mmH2O, 170-180mmH2O, 180-190mmH2O, 190-195mmH2O. Preferably, the height of the helical groove 221 corresponding to the a-k gears is in turn: 0.5mm, 0.7mm, 0.9mm, 1.07mm, 1.23mm, 1.38mm, 1.5mm, 1.63mm, 1.74mm, 1.835mm, 1.92mm, 2mm.

[0038] Referring to Figures 24-25When the pressure regulating rotor 22 has a total of 18 positions (i.e. 18 position slots 132 are provided), the pressure regulating rotor 22 switches a position every 15° of rotation, and the height of the helical groove 221 corresponding to each of the positions a-q (i.e. the height of the first end of the lever spring 23) is: 0.5-0.6mm, 0.59-0.69mm, 0.71-0.81mm, 0.84-0.94mm, 0.96-1.06mm, 1.06-1.16mm, 1.16-1.26mm, 1.26-1.36mm, 1.35-1.45mm, 1.46-1.52mm, 1.54-1.61mm, 1.62-1.66mm, 1.69-1.73mm, 1.76-1.80mm, 1.82-1.86mm, 1.88-1.92mm, 1.93-1.97mm, 1.98-2.02mm. Correspondingly, the pressure value exerted by the lever spring 23 on the ball 21 corresponding to each of the positions a-q is: 80-85mmH2O, 87-92mmH2O, 100-105mmH2O, 107-112mmH2O, 114-119mmH2O, 122-127mmH2O, 130-135mmH2O, 137-142mmH2O, 144-147mmH2O, 149-152mmH2O, 154-157mmH2O, 159-162mmH2O, 163-167mmH2O, 169-173mmH2O, 174-177mmH2O, 178-182mmH2O, 184-188mmH2O, 190-195mmH2O. Preferably, the height of the helical groove 221 corresponding to each of the positions a-q is: 0.5mm, 0.64mm, 0.76mm, 0.89mm, 1.01mm, 1.11mm, 1.21mm, 1.31mm, 1.4mm, 1.49mm, 1.57mm, 1.64mm, 1.71mm, 1.78mm, 1.84mm, 1.90mm, 1.95mm, 2mm.

[0039] As can be seen from the above, when the pressure regulating rotor 22 rotates, the first end of the lever spring 23 can linearly slide along the helical groove 221, and the second end thereof can linearly rise and fall, so as to linearly adjust the different pressure values exerted by the lever spring 23 on the ball 21.

[0040] Referring to Figure 3 , Figure 8 and Figure 9 , preferably, in order to improve the insertion accuracy of the insertion block 222 and the position slot 132, the embodiment is further limited as follows: The cross section of the gear slot 132 is trapezoidal, and the cross section of the plug 222 is also trapezoidal to match the gear slot 132, so as to improve the insertion accuracy of the plug 222 and the gear slot 132, limit the circumferential direction of the pressure regulating rotor 22, and facilitate processing.

[0041] More preferably, to further improve the insertion accuracy of the plug 222 and the gear slot 132, the first and second gear locking structures of the first setting form are further limited in the embodiment: A plurality of guide grooves are arranged on the inner wall of the locking platform 13, and the plurality of guide grooves and the plurality of gear slots 132 are one-to-one corresponding. The guide grooves extend vertically to communicate with the gear slots 132, so as to drive the plug 222 to move downward along the guide grooves and insert into the gear slots 132 when the pressure regulating rotor 22 is lowered.

[0042] Preferably, to improve the lifting accuracy of the pressure regulating rotor 22, the embodiment is further limited: Referring to Figure 3 , the inner wall of the valve body 1 is further provided with a limiting shaft 14 located at the center of the locking platform 13, and the limiting shaft 14 is vertically oriented. The pressure regulating rotor 22 is sleeved on the outside of the limiting shaft 14.

[0043] Specifically, the bottom of the pressure regulating rotor 22 is provided with a plug slot 223, and the plug slot 223 is sleeved on the outside of the limiting shaft 14.

[0044] Referring to Figure 2 , further, the driving mode of the pressure regulating rotor 22 to move up and down and rotate around the vertical axis is: The pressure regulating rotor 22 is provided with a first magnet 224, and the pressure regulating rotor 22 and the top wall of the valve body 1 are provided with an elastic element 24.

[0045] The first magnet 224 can drive the pressure regulating rotor 22 to move upward and rotate around the vertical axis under the action of a second magnet 421 arranged on the outside of the top wall of the valve body 1, so that the pressure regulating rotor 22 is switched to a rotating pressure regulating state, and the elastic element 24 is compressed at this time. When the first magnet 224 is out of the action of the second magnet 421, the elastic element 24 rebounds and drives the pressure regulating rotor 22 to move downward to switch to a locking state.

[0046] Based on the above setting, the pressure regulating ball valve can switch the pressure regulating rotor 22 between the locking state and the rotating pressure regulating state under the cooperation of the external magnetic field and the elastic element 24 when regulating pressure, without the need for the operator to assist in applying force, thereby improving the operation convenience.

[0047] It should be noted that when the pressure regulating rotor 22 is in the locked state, the elastic member 24 provides a vertical downward spring force to the pressure regulating rotor 22, which can press the pressure regulating rotor 22 against the inner bottom wall of the valve body 1 to avoid the pressure regulating rotor 22 from shaking, so as to ensure the constant pressure range. At the same time, the second magnet 421 and the first magnet 224 are arranged such that the magnetic force between them is greater than the elastic force of the elastic member 24 and the gravity of the pressure regulating rotor 22, so as to overcome the elastic force of the elastic member 24 and drive the pressure regulating rotor 22 to rise.

[0048] Preferably, the top of the pressure regulating rotor 22 is provided with two first magnets 224 with opposite magnetic properties, which are arranged symmetrically about the axis of the pressure regulating rotor 22 and fixed in the mounting groove 225 opened at the top of the pressure regulating rotor 22, so that the second magnet 421 can magnetically attract the two symmetrically arranged first magnets 224 and stably drive the pressure regulating rotor 22 to move upward and rotate.

[0049] Optionally, the radius of the first magnet 224 is 0.5 mm, and the magnetic flux density is 4000Gs (i.e. 0.4T). The radius of the second magnet 421 is 0.5 mm, and the magnetic flux density is 4000Gs (i.e. 0.4T). The first magnet 224 and the second magnet 421 can generate a magnetic attraction force of about 0.8N at a distance of about 10mm. Of course, the above arrangement of the magnet is only one preferred embodiment, and the present application is not limited thereto.

[0050] Referring to Figure 2 and Figures 7-11 , in particular, to further improve the lifting accuracy of the pressure regulating rotor 22, the present embodiment is further limited as follows: The elastic member 24 is a coil spring. The top of the pressure regulating rotor 22 is provided with a boss 226, and the inner top wall of the valve body 1 is provided with a limiting hole 121. The larger diameter end of the coil spring is inserted into the limiting hole 121, and the smaller diameter end of the coil spring is sleeved outside the boss 226, so as to limit the axial direction of the coil spring and enable the coil spring to apply a vertical downward spring driving force to the pressure regulating rotor 22, thereby improving the downward movement accuracy of the pressure regulating rotor 22. The spring driving force provided by the coil spring can provide a larger driving force in a smaller space.

[0051] Referring to Figures 2-5 , Figure 12 and Figures 17-19 , further, to support the lever type elastic piece 23, the present embodiment is further limited as follows: The lever type elastic piece 23 includes an elastic piece body 231 and two connecting arms 232 extending from the elastic piece body 231 to both sides. The first end of the elastic piece body 231 is slidingly fitted in the spiral groove 221, and the second end abuts against the top of the ball 21. The limiting groove 2321 is opened at the side of the elastic piece body 231 close to the connecting arm 232.

[0052] The inner bottom wall of the valve body 1 is provided with a spring fixing frame 15. The spring fixing frame 15 comprises a support table 152 and two vertical insertion rods 151 located on both sides of the support table 152.

[0053] The support table 152 is used to support the part of the spring body 231 between the first end and the second end, and the vertical insertion rod 151 is inserted into the limiting groove 2321, so that the lever spring 23 can rotate around the support table 152 and limit the movement freedom degree of the support table 152 in the horizontal direction.

[0054] When the first end of the lever spring 23 slides along the spiral groove 221, the spring body 231 can swing up and down relative to the spring fixing frame 15, that is, the lever spring 23 and the spring fixing frame 15 form a lever structure, which simplifies the structure of the valve body 1 and reduces the overall volume, so as to be conveniently embedded in the skin of the patient. And the above-mentioned setting of the lever spring 23 and the spring fixing frame 15 can reduce the processing difficulty and facilitate the connection of the two.

[0055] Referring to Figure 19 Optionally, the length from the first end of the spring body 231 to the support table 152 is 2.95mm, and the length from the part where the first end of the spring body 231 abuts against the sphere 21 to the support table 152 is 1.30mm. Of course, the above setting of the spring body 231 is only one preferred embodiment, and the present application is not limited thereto.

[0056] Referring to Figure 12 In particular, the first end of the spring body 231 is rectangular, the second end is circular, a semispherical protrusion is arranged on the first end, the semispherical protrusion abuts against the inner wall of the spiral groove 221, and the semispherical protrusion is used to reduce the friction between the first end of the spring body 231 and the spiral groove 221, and the circular second end is convenient for abutting against the top of the sphere 21.

[0057] Preferably, the support table 152 is a rectangular prism structure with rounded corners, so as to facilitate the up-and-down swinging of the spring body 231 relative to the support table 152.

[0058] Preferably, the limiting groove 2321 is rectangular, so as to facilitate processing.

[0059] Referring to Figure 2 and Figure 4 Further, in order to improve the support stability of the sphere 21, the present embodiment is further limited as follows: The inlet 111 is provided with a tapered hole 1111 which is radially contracted downward, and the sphere 21 is inserted into the tapered hole 1111 and protrudes from the top of the tapered hole 1111, so as to stably support the sphere 21 through the tapered hole 1111.

[0060] The inlet 111 is inserted into the inflow joint 31, and the outlet 112 is inserted into the outflow joint 32. The inflow joint 31 and the outflow joint 32 are both horizontally oriented, and the outflow joint 32 is higher than the inflow joint 31 to form a natural gravity drainage gradient, thereby promoting unidirectional flow by using the gravity of the cerebrospinal fluid itself and reducing the risk of backflow.

[0061] Preferably, the ball 21 is a ruby ball to improve the durability of the ball 21 and the service life of the valve body 1.

[0062] Referring to Figure 2 , further, the structure of the valve body 1 is as follows: The valve body 1 comprises a shell 11 and a top cover 12. The top cover 12 is arranged at the upper end opening of the shell 11, and a valve cavity is enclosed between the top cover 12 and the shell 11.

[0063] Specifically, the bottom of the top cover 12 is provided with an annular insertion station 122, and the top of the shell 11 is provided with an annular limiting groove 113. The annular insertion station 122 is inserted into the annular limiting groove 113 to realize the sealed connection of the top cover 12 and the shell 11.

[0064] Preferably, the peripheral wall of the shell 11 is outwardly protruding and arc-shaped.

[0065] Embodiment Two

[0066] Referring to Figure 13 and Figure 14 , based on the embodiment one, the embodiment further provides a pressure regulating system. The pressure regulating system comprises the pressure regulating ball valve in the embodiment one, and further comprises a magnetic activation assembly 4. The magnetic activation assembly 4 is used to provide an external magnetic field to the pressure regulating rotor 22 outside the patient's body.

[0067] The magnetic activation assembly 4 comprises a first shell 41 and a rotating block 42 rotatably connected to the first shell 41. A second magnet 421 is arranged on the rotating block 42, and the second magnet 421 can magnetically attract the pressure regulating rotor 22. The rotating block 42 can drive the pressure regulating rotor 22 to move upwards and rotate around a vertical axis.

[0068] Specifically, two second magnets 421 with opposite magnetic properties are symmetrically arranged on the rotating block 42, and the two second magnets 421 can be magnetically attracted and adsorbed to the two first magnets 224 on the pressure regulating rotor 22 to drive the pressure regulating rotor 22 to move upwards and rotate around the vertical axis.

[0069] Specifically, the magnetic activation assembly 4 further comprises a rotating wheel 43 rotatably connected to the first shell 41 and a gear set 44. The rotating wheel 43 is connected to the gear set 44 through a drive shaft, and the gear set 44 is connected to the rotating block 42 through a drive shaft. When an operator rotates the rotating wheel 43, the rotating block 42 is driven to rotate around the vertical axis after being decelerated by the gear set 44, and the rotating block 42 can drive the pressure regulating rotor 22 to synchronously rotate around the vertical axis.

[0070] Specifically, the first housing 41 is provided with a scale dial, and a pointer connected with the rotating wheel 43 can indicate the scale on the scale dial, which indicates the rotating position of the rotating block 42 corresponding to different pressure positions of the pressure regulating rotor 22, so as to accurately adjust the pressure value of the lever spring 23 applied to the ball 21.

[0071] Referring to Figure 15 and Figure 16 , further, the pressure regulating ball valve further comprises an indicator 5.

[0072] The indicator 5 comprises a second housing 51 and a rotating rod 52 rotatably connected with the second housing 51. The second housing 51 is provided with a scale dial 53. A pointer connected with the rotating rod 52 can indicate the scale on the scale dial 53.

[0073] The rotating rod 52 is provided with two third magnets arranged symmetrically and magnetically opposite. The two third magnets can be magnetically attracted to the two first magnets 224 on the pressure regulating rotor 22, so that the scale indicated by the pointer corresponds to the pressure regulating position of the pressure regulating rotor 22 in the initial state.

[0074] In use, the pressure regulating position of the pressure regulating rotor 22 in the initial state is first confirmed by the indicator 5, and then the magnetic activation assembly 4 is used to increase or decrease the pressure position based on the initial pressure position, so as to adjust the pressure value of the lever spring 23 applied to the ball 21.

[0075] Referring to Figures 1-25 , further, the pressure regulating principle of the pressure regulating system is: In the initial state, the pressure regulating ball valve is implanted under the skin of the patient, and the pressure regulating rotor 22 is in a locked state, and the first position locking structure and the second position locking structure are engaged.

[0076] When the pressure is adjusted, first, the indicator 5 is aligned with the position of the pressure regulating ball valve on the patient's body surface. Under the action of the magnetic field coupling between the third magnet on the rotating rod 52 and the first magnet 224 on the pressure regulating rotor 22, the rotating rod 52 rotates around the vertical axis and drives the pointer to rotate. The scale on the scale dial 53 indicated by the pointer confirms the initial pressure regulating position of the pressure regulating rotor 22. Subsequently, the indicator 5 is removed, and the magnetic activation assembly 4 is aligned with the position of the pressure regulating ball valve on the patient's body surface. The second magnet 421 on the rotating block 42 and the first magnet 224 on the pressure regulating rotor 22 generate magnetic attraction, attracting the pressure regulating rotor 22 to move upward and switching to the rotating pressure regulating state. At this time, the first and second position locking structures are disengaged, and the elastic member 24 is compressed. Based on the initial pressure regulating position of the pressure regulating rotor 22, the rotating wheel 43 is rotated to make the pointer connected thereto point to the target pressure regulating position on the scale dial. In this process, the rotating wheel 43 drives the pressure regulating rotor 22 to rotate synchronously around the vertical axis through the rotating block 42, so as to drive the first end of the lever spring 23 to slide upward and downward along the spiral groove 221, and drive the second end of the lever spring 23 to rise and fall, thereby adjusting the pressure applied by the lever spring 23 to the ball 21 to the target value.

[0077] After the pressure is adjusted, the magnetic activation assembly 4 is removed, and the elastic member 24 drives the pressure regulating rotor 22 to descend and switch to the locked state, and the first and second position locking structures are engaged.

[0078] In the description of the present application, it should be understood that the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0079] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature is "over", "above" and "on top of" a second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. A first feature is "under", "below" and "underneath" a second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0081] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0082] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A pressure regulating ball valve for a cerebrospinal fluid shunt, comprising: The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state.

2. The pressure regulating bulb valve for a cerebrospinal fluid shunt of Claim 1, wherein, The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state.

3. The pressure regulating bulb valve for a cerebrospinal fluid shunt of Claim 2, wherein, The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state.

4. The pressure regulating bulb valve for a cerebrospinal fluid shunt of Claim 3, wherein, The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state.

5. The pressure regulating bulb valve for a cerebrospinal fluid shunt of Claim 1, wherein, The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state.

6. The pressure regulating bulb valve for a cerebrospinal fluid shunt of Claim 5, wherein, The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and the second gear locking structure are separated when the pressure regulating rotor (22) is in the rotary pressure regulating state. The utility model relates to a valve body (1) is provided with the first gear locking structure in the inner bottom wall, and the valve body (1) is provided with the second gear locking structure in the bottom of the pressure regulating rotor (22), and the first gear locking structure and the second gear locking structure are engaged when the pressure regulating rotor (22) is in the locking state, and the first gear locking structure and The top of the pressure regulating rotor (22) is provided with a boss (226), and the inner top wall of the valve body (1) is provided with a limiting hole (121); The larger diameter end of the tower spring is inserted into the limiting hole (121), and the smaller diameter end of the tower spring is sleeved outside the boss (226).

7. The pressure regulating ball valve for cerebrospinal fluid shunt device according to claim 1, characterized in that, The lever type spring piece (23) comprises a spring piece body (231) and two connecting arms (232) extending to both sides from the spring piece body (231); The first end of the spring piece body (231) is slidingly fitted in the spiral groove (221), and the second end abuts against the top of the ball (21); the side close to the spring piece body (231) of the connecting arm (232) is provided with a limiting groove (2321). The inner bottom wall of the valve body (1) is provided with a spring piece fixing frame (15); the spring piece fixing frame (15) comprises a support table (152) and two vertical insertion rods (151) located on both sides of the support table (152); The support table (152) is used for supporting the part of the spring piece body (231) between the first end and the second end, and the vertical insertion rod (151) is inserted into the limiting groove (2321).

8. The pressure regulating bulb valve for a cerebrospinal fluid shunt of Claim 7, wherein, The first end of the spring piece body (231) is rectangular, the second end is circular, a hemispherical protrusion is arranged on the first end, and the hemispherical protrusion abuts against the inner wall of the spiral groove (221).

9. The pressure regulating bulb valve for a cerebrospinal fluid shunt of Claim 1, wherein, The inlet (111) is provided with a tapered hole (1111) which is radially and downwardly contracted, the ball (21) is inserted into the tapered hole (1111) and protrudes from the top of the tapered hole (1111); The inlet (111) is inserted into an inflow joint (31), the outlet (112) is inserted into an outflow joint (32), and the outflow joint (32) is higher than the inflow joint (31).

10. A pressure regulating system comprising the pressure regulating ball valve for a cerebrospinal fluid shunt device according to any one of claims 1 to 9, characterized in that, Further comprising a magnetic activation assembly (4); The magnetic activation assembly (4) comprises a first housing (41) and a rotating block (42) rotatably connected to the first housing (41); The rotating block (42) is provided with a second magnet (421), and the second magnet (421) can magnetically attract the pressure regulating rotor (22) to drive the pressure regulating rotor (22) to move upward and rotate around the vertical axis.

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