Quick disassembly, assembly and sealing mechanism for water bag on ultrasound transcranial probe, and control method therefor

Abstract

A quick disassembly, assembly and sealing mechanism for a water bag on an ultrasound transcranial probe, comprising a transcranial probe inner helmet (1), a water bag module (2), a cavity sealing ring (3) and a control system (4). The water bag module is snap-fitted on the transcranial probe inner helmet, the cavity sealing ring is provided between the transcranial probe inner helmet and the water bag module, and the cavity sealing ring is connected to the control system; the control system controls the volume expansion / contraction of the cavity sealing ring. Also provided is a control method for the quick disassembly, assembly and sealing mechanism for a water bag on an ultrasound transcranial probe. Compared with the prior art, the quick disassembly, assembly and sealing mechanism for a water bag on an ultrasound transcranial probe can achieve quick disassembly, assembly and sealing of the water bag module, simplifying the disassembly and assembly process.

Description

A water bag quick disassembly and assembly sealing mechanism for an ultrasonic transcranial probe and a control method thereof Technical Field

[0001] The present invention relates to the field of ultrasound technology, and in particular to a water bag quick disassembly and assembly sealing mechanism of an ultrasound transcranial probe and a control method thereof. Background Art

[0002] Focused ultrasound thermal ablation therapy utilizes ultrasound waves focused on the target area. The ultrasound energy can generate temperatures exceeding 65°C in the target area, killing tissue and achieving the desired treatment. Magnetic resonance imaging (MRI) scans the treated area, capturing temperature-induced phase changes to monitor the treatment process in real time. The feedback from these temperature changes ensures the effectiveness and safety of the treatment. Currently, MRI-guided focused ultrasound thermal ablation technology, as a non-invasive and effective treatment, has been applied clinically to treat conditions such as uterine fibroids and essential tremor.

[0003] Focused ultrasound thermal ablation utilizes the ultrasonic biological thermal effect. The combined action of multiple ultrasound beams causes the tissue to reach a sufficiently high temperature. Generally speaking, when the cell temperature exceeds 40°C, cell growth stops. At 45°C, protein denaturation begins. Further increases in temperature cause protein decomposition, effectively killing the cell.

[0004] However, in order to enable each ultrasonic unit to efficiently transmit sound waves through the medium to the focus of the transcranial probe, maximize the ultrasonic acoustic impedance transmission and matching, and also to cool the ultrasonic transducer and maximize the electroacoustic conversion efficiency of the transducer, degassed water needs to be introduced into the transcranial probe to promptly remove the heat from the skull surface, so sealing measures need to be set for the liquid.

[0005] Currently, the transcranial probe and water bag module are mostly sealed by using a rotatable pressure block to first press the water bag module flange, and then the lower end of the flange directly presses the O-ring on the end face of the transcranial probe. This structure has the following problems: First, the O-ring has high requirements for the flatness and roughness of the surface to be sealed, and also for the dimensional accuracy of the O-ring installation groove. At the same time, frequent disassembly and assembly over a long period of time will exacerbate the deformation and aging of the O-ring, reducing the sealing reliability of the O-ring. Second, the water bag flange is usually tightened by screws on the pressing block, and then the flange is tightened by the cam on the pressing block. Generally, multiple pressing blocks are evenly distributed around the water bag installation flange. This requires people to place the water bag module in its fixed position, rotate the cam pressing blocks one by one by hand to a certain angle, and use the cam on the pressing block to tighten the water bag module flange to the installation end face of the transcranial probe. The operation is relatively cumbersome; third, since the skull skeleton contour of each patient is different, each water bag center hole is required to achieve a sealing fit with the patient's head, and then the whole is installed on the transcranial probe. The water bag is a disposable consumable for each patient, which requires the water bag module to be quickly disassembled and sealed on the transcranial probe before and after the operation.

[0006] Summary of the Invention

[0007] The purpose of the present invention is to provide a water bag quick disassembly and assembly sealing mechanism for an ultrasonic transcranial probe and a control method thereof.

[0008] The object of the present invention can be achieved by the following technical solutions: a water bag quick disassembly and assembly sealing mechanism for an ultrasonic transcranial probe, comprising a transcranial probe inner helmet, a water bag module, a cavity sealing ring and a control system;

[0009] The water bag module is clamped on the transcranial probe inner helmet, the cavity sealing ring is arranged between the transcranial probe inner helmet and the water bag module, and the cavity sealing ring is connected to the control system;

[0010] The control system is used to control the volume expansion / contraction of the cavity sealing ring.

[0011] Preferably, the control system expands the volume of the cavity sealing ring by filling gas or liquid into the cavity sealing ring.

[0012] Further preferably, the cavity sealing ring is made of silicone.

[0013] Further preferably, gas or liquid is filled into the cavity sealing ring so that the internal pressure reaches about 0.03 bar.

[0014] Preferably, the mechanism further comprises a medium channel;

[0015] One end of the medium channel is connected to the cavity sealing ring, and the other end is connected to the control system;

[0016] The control system includes a solenoid valve and a control button;

[0017] The solenoid valve is arranged on the medium channel and is used to control the opening and closing of the medium channel;

[0018] The control button is connected to the solenoid valve and is used to control the opening and closing of the solenoid valve.

[0019] Further preferably, the control button is arranged on the outside of the inner helmet of the transcranial probe.

[0020] Further preferably, the control system further comprises a pressure sensor and a control unit;

[0021] The pressure sensor is arranged on the medium channel;

[0022] The control unit is connected to the solenoid valve, the control button and the pressure sensor respectively.

[0023] Further preferably, the solenoid valve is connected to a high-pressure pump.

[0024] Preferably, the inner helmet of the transcranial probe is provided with an axial rotation limiting rib and a slot;

[0025] The water bag module is provided with a bearing platform and an axial rotation limiting edge;

[0026] When the water bag module is installed, the bearing platform is installed in the card slot. After rotating a certain angle, the bearing platform moves to the axial rotation limit rib, and the water bag module is installed in place.

[0027] Further preferably, the transcranial probe inner helmet is further provided with an axial displacement limiting rib for limiting the axial displacement of the water bag module.

[0028] Further preferably, a radial fixing nut is provided on the inner helmet of the transcranial probe, and one end of the radial fixing nut is inserted into the axial rotation positioning pin hole on the water bag module.

[0029] Preferably, an annular groove for accommodating a cavity sealing ring is provided on the inner helmet of the transcranial probe. When the cavity sealing ring is expanded into place, the end face of the water bag module fits with the outer end face of the cavity sealing ring to achieve sealing.

[0030] A method for controlling the water bag quick disassembly and assembly sealing mechanism of the above-mentioned transcranial ultrasound probe comprises the following steps:

[0031] S1: The control system places the cavity sealing ring in a relaxed state and installs the water bag module into the transcranial probe inner helmet;

[0032] S2: Rotate the water bag module until it is installed in place;

[0033] S3: When in use, the control system causes the cavity sealing ring to expand to achieve sealing;

[0034] S4: When the water bag module is disassembled, the control system restores the cavity sealing ring to a relaxed state and rotates the water bag module in the reverse direction.

[0035] The present invention uses a cavity sealing ring that can be filled with gas or liquid to seal the water bag module and the end face of the transcranial probe.

[0036] Compared with the prior art, the present invention has the following advantages:

[0037] 1. The present invention realizes the rapid disassembly and assembly, sealing of the water bag module, and simplifies the disassembly and assembly process through the coordinated arrangement of the transcranial probe inner helmet, water bag module, cavity sealing ring, and control system;

[0038] 2. The present invention uses gas or liquid to expand the cavity sealing ring, which can increase the contact area between the sealing ring and each contact surface, thereby better ensuring the sealing effect;

[0039] 3. The present invention adopts the method of filling the cavity sealing ring with gas or liquid to expand the cavity sealing ring, which can better ensure the sealing reliability and better ensure the fit of the sealing contact surface;

[0040] 4. The control system of the present invention facilitates rapid expansion of the cavity sealing ring through the coordinated arrangement of the control button, solenoid valve, pressure sensor and control unit, and can automatically maintain the pressure-maintaining sealing state, thereby improving the convenience and reliability of operation;

[0041] 5. The present invention uses the coordinated design of the axial rotation limit rib, the slot, the axial displacement limit rib, the support platform, and the axial rotation limit rib on the transcranial probe inner helmet and the water bag module. The water bag module can be fixed to the transcranial probe inner helmet by rotating it, making it easy to assemble and disassemble.

[0042] 6. The present invention simplifies the transcranial structure design and improves the reliability of the product;

[0043] 7 The present invention simplifies the convenience of disassembly and assembly, can achieve one-button disassembly and assembly, and can be operated by one person. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] FIG1 is a schematic structural diagram of the mechanism of the present invention;

[0045] FIG2 is a schematic diagram of the installation state of the water bag module and the transcranial probe inner helmet of the present invention;

[0046] FIG3 is a schematic diagram of the sealing state of the cavity sealing ring of the present invention;

[0047] FIG4 is a schematic diagram of a cavity sealing ring and a partial cross-section of the present invention;

[0048] FIG5 is an exploded view of the inner helmet and water bag module of the transcranial probe of the present invention;

[0049] FIG6 is a schematic diagram of the structure of the inner helmet of the transcranial probe of the present invention;

[0050] FIG7 is a schematic diagram of the water bag module structure of the present invention;

[0051] FIG8 is a schematic diagram of the installation position of the radial fixing nut of the present invention;

[0052] FIG9 is a schematic diagram of a state where a radial fixing nut is locked on a water bag module according to the present invention;

[0053] In the figure: 1-transcranial probe inner helmet, 11-axial rotation limit rib, 12-slot, 13-axial displacement limit rib, 14-radial fixing nut mounting hole, 2-water bag module, 21-carrying platform, 22-axial rotation limit rib, 23-axial rotation positioning pin hole, 24-end face, 3-cavity sealing ring, 31-outer end face, 4-control system, 41-solenoid valve, 42-control button, 43-pressure sensor, 44-control unit, 45-high-pressure pump, 5-radial fixing nut, a-medium channel. DETAILED DESCRIPTION

[0054] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operating processes, but the protection scope of the present invention is not limited to the following embodiments.

[0055] Example 1

[0056] A water bag quick-disassembly and sealing mechanism for an ultrasound transcranial probe, as shown in Figures 1 to 5, comprises a transcranial probe inner helmet 1, a water bag module 2, a cavity sealing ring 3, and a control system 4. The water bag module 2 is rotatably mounted on the transcranial probe inner helmet 1, and the cavity sealing ring 3 is disposed between the transcranial probe inner helmet 1 and the water bag module 2. The control system 4 is connected to the cavity sealing ring 3 and expands the cavity sealing ring 3 by filling it with gas or liquid, squeezing the sidewall surface in contact with the cavity sealing ring 3 to achieve a complete fit and seal.

[0057] Example 2

[0058] A water bag quick disassembly and assembly sealing mechanism for an ultrasonic transcranial probe, wherein the control system 4 includes a solenoid valve 41, a control button 42, a pressure sensor 43, a control unit 44, and a high-pressure pump 45. The cavity sealing ring 3 is connected to a medium channel a, which is used to inflate or fill water into the cavity sealing ring 3 / deflate or release air or water. The far end of the medium channel a is connected to the solenoid valve 41, and the control button 42 of the solenoid valve 41 is installed on the outside of the transcranial probe inner helmet 1. The solenoid valve 41 is connected to the high-pressure pump 45. The high-pressure pump achieves the effect of pressurizing and expanding the cavity sealing ring 3 by connecting to other media such as air or water. A pressure sensor 43 is also provided on the medium channel a, and the solenoid valve 41, the control button 42, and the pressure sensor 43 are all connected to the control unit 44. The rest is the same as in Example 1.

[0059] When the solenoid valve 41 is in the normally open state, the pressure in the cavity sealing ring 3 is the same as the external environment pressure, and the cavity sealing ring 3 is in a relaxed state. After pressing the control button 42, the gas-filled or liquid-filled channel of the solenoid valve 41 is opened, and the cavity sealing ring 3 is in an expanded state. When the pressure sensor 43 detects that the pressure reaches the specified value, the control unit 44 controls the gas-filled or liquid-filled channel of the solenoid valve 41 to close. At this time, the cavity sealing ring 3 is in a pressure-maintaining sealing state, and the outer end face 31 of the cavity sealing ring 3 and the end face 24 of the water bag module 2 are fully fitted, and the contact part between the transcranial probe inner helmet 1 and the water bag module 2 achieves a sealing effect.

[0060] Example 3

[0061] A water bag quick disassembly and assembly sealing mechanism for an ultrasonic transcranial probe, as shown in Figures 6 to 9, is provided with an axial rotation limit rib 11, a slot 12, an axial displacement limit rib 13 and a radial fixing nut mounting hole 14 on the transcranial probe inner helmet, and a bearing platform 21, an axial rotation limit rib 22 and an axial rotation positioning pin hole 23 on the water bag module 2.

[0062] When installing the water bag module 2, the supporting platform 21 of the water bag module 2 is installed in a certain orientation into the corresponding slot 12 on the end face of the transcranial probe inner helmet 1. The water bag module 2 is rotated a certain angle until the axial rotation limiting edge 22 on the water bag module 2 contacts the axial rotation limiting rib 11 on the transcranial probe inner helmet 1. The water bag module 2 is installed in place. The radial fixing nut 5 of the water bag module 2 is rotated so that one end of the radial fixing nut 5 is inserted into the axial rotation positioning pin hole 23 on the water bag module 2, thereby radially locking the water bag module 2 to prevent rotational displacement. The rest of the process is the same as in Example 1.

[0063] Example 4

[0064] A water bag quick disassembly and sealing mechanism for an ultrasonic transcranial probe and a control method thereof, wherein the specific actual operation process is as follows:

[0065] 1. Water bag module installation process: The far end of the inflation or water filling / deflation or water discharge pipeline (medium channel a) of the cavity sealing ring 3 is connected to the solenoid valve 41. The control button 42 of the solenoid valve 41 is installed on the outside of the transcranial probe inner helmet 1. When the water bag module 2 is installed, the cavity sealing ring 3 is in an uninflated normal pressure state. At this time, the supporting platform 21 on the water bag module 2 is installed into the card slot 12 on the end face of the transcranial probe inner helmet 1 according to the corresponding orientation and rotated a certain angle until the axial rotation limit edge 22 on the water bag module 2 and the axial rotation limit retaining edge 1 on the transcranial probe inner helmet 1 are aligned. 1 realizes axial rotation limit. At this time, the supporting platform 21 contacts the axial displacement limit rib 13 on the transcranial probe inner helmet 1, and the water bag module 2 will not be axially displaced due to the expansion of the cavity sealing ring 3. Then, the control button 42 of the solenoid valve 41 is pressed once, and the solenoid valve inflation / liquid filling pipeline channel (medium channel a) is opened, and the cavity sealing ring 3 begins to be inflated with gas or liquid. When the internal pressure of the cavity sealing ring 3 reaches the preset pressure, the outer end face 31 of the cavity sealing ring 3 and the end face 24 of the water bag module 2 are fully squeezed and fitted, and a sealing effect is quickly achieved;

[0066] 2. Water bag module disassembly process: If you want to remove the water bag module 2, you only need to press the control button 42 of the solenoid valve 41 again. The solenoid valve 41 opens, and the pressure inside the cavity sealing ring 3 is quickly released and quickly restored to normal pressure. There is no pressure between the outer end face 31 of the cavity sealing ring 3 and the end face 24 of the water bag module 2. At this time, you only need to rotate the water bag module 2 in the opposite direction to remove the water bag module 2.

[0067] Example 5

[0068] A water bag quick disassembly and assembly sealing mechanism for an ultrasonic transcranial probe and a control method thereof, wherein a cavity sealing ring 3 replaces an existing O-ring. By filling the inner cavity of the cavity sealing ring 3 with gas or liquid, the volume of the cavity sealing ring 3 is expanded to squeeze the side wall surface in contact with the cavity sealing ring 3, thereby achieving complete fit and sealing.

[0069] The specific control process is as follows.

[0070] a. The transcranial probe inner helmet 1 and the water bag module 2 are in the separated state, the control solenoid valve 41 of the cavity sealing ring 3 is in the normally open state, the pressure in the cavity sealing ring 3 is the same as the external environment pressure, and the cavity sealing ring 3 is in a relaxed state;

[0071] b. When installing the water bag module 2, the carrier 21 of the water bag module 2 is installed into the corresponding slot 12 of the end face of the transcranial probe inner helmet 1 in a certain orientation, and rotated a certain angle until the axial rotation limit edge 22 on the water bag module 2 contacts the axial rotation limit edge 11 on the transcranial probe inner helmet 1, and the water bag module 2 is installed in place;

[0072] c. Rotate the radial fixing nut 5 of the water bag module 2 so that one end of the radial fixing nut 5 is inserted into the axial rotation positioning pin hole 23 on the water bag module 2;

[0073] d. Lock the water bag module 2 radially to prevent rotational displacement;

[0074] e. Press the control button 42 of the solenoid valve 41 for inflating or discharging gas or liquid of the cavity sealing ring 3 on the inner helmet 1 of the transcranial probe, and the gas or liquid filling channel of the solenoid valve 41 will open, and the cavity sealing ring 3 will be in an expanded state. When the pressure reaches the specified value, the gas or liquid filling channel of the solenoid valve 41 will be closed. At this time, the cavity sealing ring 3 is in a pressure-maintaining sealing state, and the outer end face 31 of the cavity sealing ring 3 and the end face 24 of the flange of the water bag module 2 are fully fitted, and the contact part between the inner helmet 1 of the transcranial probe and the water bag module 2 achieves a sealing effect.

[0075] f. If the water bag module 2 needs to be removed, first rotate the radial fixing nut 5 of the water bag module 2 in the opposite direction to disengage one end of the radial fixing nut 5 from the axial rotation positioning pin hole 23 on the water bag module 2; then press the control button 42 on the inner helmet 1 of the transcranial probe once. At this time, the solenoid valve 41 releases gas or the liquid channel is opened, and the internal pressure of the cavity sealing ring 3 is the same as the external environmental pressure. At this time, the water bag module 2 can be easily removed.

[0076] The present invention provides a water bag quick disassembly and assembly sealing mechanism for a magnetic resonance compatible ultrasound transcranial probe and a control method thereof. The mechanism adopts a cavity sealing ring which is expanded by filling the cavity sealing ring with gas or liquid as a sealing element, thereby increasing the contact area of ​​the sealing part. The inner cavity of the cavity sealing ring can be filled with either gas or liquid. The fixing flange of the water bag module adopts an axial displacement limiting rib to axially limit and fix it. As long as gas or liquid is filled into the inner cavity of the cavity sealing ring, the transcranial probe and the water bag module can be sealed.

[0077] The present invention can realize the rapid disassembly and assembly of the water bag module and simplify the disassembly and assembly process: the flange of the water bag module is provided with a supporting platform: first rotate the water bag module clockwise, and by pressing the control button on the inner helmet of the transcranial probe, the inner cavity of the cavity sealing ring can be quickly filled with gas or liquid to achieve a seal between the water bag module and the inner helmet of the transcranial probe; the control button on the inner helmet of the transcranial probe can also be pressed and the water bag module can be rotated counterclockwise to quickly discharge gas or liquid from the inner cavity of the cavity sealing ring, and the water bag module can be rotated in the opposite direction and removed to achieve disassembly between the water bag module and the inner helmet of the transcranial probe.

[0078] The above description of the embodiments is intended to facilitate understanding and use of the invention by those skilled in the art. It will be apparent that those skilled in the art can readily make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention, without departing from the scope of the present invention, should be within the scope of protection of the present invention.

Claims

1. A water bag quick disassembly and assembly sealing mechanism for an ultrasonic transcranial probe, characterized in that: It comprises a transcranial probe inner helmet (1), a water bag module (2), a cavity sealing ring (3) and a control system (4); The water bag module (2) is mounted on the transcranial probe inner helmet (1), the cavity sealing ring (3) is arranged between the transcranial probe inner helmet (1) and the water bag module (2), and the cavity sealing ring (3) is connected to the control system (4); The control system (4) is used to control the volume expansion / contraction of the cavity sealing ring (3).

2. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 1 is characterized in that: The control system (4) expands the volume of the cavity sealing ring (3) by filling gas or liquid into the cavity sealing ring (3).

3. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 1 is characterized in that: The mechanism also includes a medium channel (a); One end of the medium channel (a) is connected to the cavity sealing ring (3), and the other end is connected to the control system (4); The control system (4) comprises a solenoid valve (41) and a control button (42); The solenoid valve (41) is arranged on the medium channel (a) and is used to control the opening and closing of the medium channel (a); The control button (42) is connected to the solenoid valve (41) and is used to control the opening and closing of the solenoid valve (41).

4. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 3, characterized in that: The control system (4) further comprises a pressure sensor (43) and a control unit (44); The pressure sensor (43) is arranged on the medium channel (a); The control unit (44) is respectively connected to the solenoid valve (41), the control button (42) and the pressure sensor (43).

5. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 3, characterized in that: The solenoid valve (41) is connected to a high-pressure pump (45).

6. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 1, characterized in that: The transcranial probe inner helmet (1) is provided with an axial rotation limiting rib (11) and a clamping groove (12); The water bag module (2) is provided with a bearing platform (21) and an axial rotation limiting edge (22); When the water bag module (2) is installed, the bearing platform (21) is inserted into the card slot (12) and rotated a certain distance. After the angle is adjusted, the support platform (21) moves to the axial rotation limit rib (11), and the water bag module (2) is installed in place.

7. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 6, characterized in that: The transcranial probe inner helmet (1) is also provided with an axial displacement limiting rib (13) for limiting the axial displacement of the water bag module (2).

8. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 6, characterized in that: The transcranial probe inner helmet (1) is provided with a radial fixing nut (5), and one end of the radial fixing nut (5) is inserted into the axial rotation positioning pin hole (23) on the water bag module (2).

9. The water bag quick disassembly and assembly sealing mechanism of the ultrasonic transcranial probe according to claim 1, characterized in that: The transcranial probe inner helmet (1) is provided with an annular groove for accommodating a cavity sealing ring (3); when the cavity sealing ring (3) expands into place, the end face (24) of the water bag module (2) fits with the outer end face (31) of the cavity sealing ring (3) to achieve sealing.

10. A method for controlling a water bag quick disassembly and assembly sealing mechanism of an ultrasonic transcranial probe according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: the control system (4) places the cavity sealing ring (3) in a relaxed state, and installs the water bag module (2) into the transcranial probe inner helmet (1); S2: Rotate the water bag module (2) until it is installed in place; S3: When in use, the control system (4) causes the cavity sealing ring (3) to expand to achieve sealing; S4: When the water bag module (2) is disassembled, the control system (4) returns the cavity sealing ring (3) to a relaxed state and rotates the water bag module (2) in the reverse direction.

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