Transcranial focusing ultrasonic helmet

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a transcranial focusing ultrasonic helmet. The transcranial focusing ultrasonic helmet comprises an inner helmet and a support, the inner helmet is hemispherical, and ultrasonic phased array elements are arrayed on the inner surface of the inner helmet; the support is annularly arranged on the outer side of the inner helmet along the periphery of the inner helmet, the support and the inner helmet are of an integrated structure, rotating shafts are arranged on the two sides of the support in an outward protruding mode respectively, the support and the rotating shafts are of an integrated structure, and the support can rotate along the rotating shafts so that the inner helmet can do pitching motion in the axial direction of the rotating shafts. According to the utility model, the number of parts can be reduced, the compactness of the structure is improved, the assembly procedures are reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a transcranial focused ultrasound helmet. Background Technique

[0002] High-Intensity Focused Ultrasound (HIFU) is a non-invasive medical technology that uses high-intensity focused ultrasound energy to generate a thermal effect in a specific target area within the body (such as a tumor) to achieve the purpose of ablating diseased tissues without damaging surrounding normal tissues. This technology is mainly applied to the treatment of tumors and certain non-tumor diseases.

[0003] The transcranial focused ultrasound helmet is a special medical device component specifically designed to transmit ultrasonic energy through the skull to a target area inside the brain. It specifically applies the focused ultrasound technology, and its working principle is based on the physical properties of ultrasonic waves. By adjusting the wavelength and frequency of ultrasonic waves, it can penetrate the skull and focus on a specific brain area, thereby reducing damage to other tissues.

[0004] Currently, the inner helmet and the inner helmet bracket of the transcranial focused ultrasound helmet are of a split structure. The two are connected and fixed through a connecting piece, and a rotating shaft is installed on the inner helmet bracket. The number of parts is large, the structure is relatively complex, the assembly process is more, and the cost is high. Content of the Utility Model

[0005] The purpose of the utility model is to provide a transcranial focused ultrasound helmet, which is used to reduce the number of parts, improve the compactness of the structure, reduce the assembly process and lower the cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A transcranial focused ultrasound helmet, comprising:

[0008] An inner helmet, the inner helmet is hemispherical, and ultrasonic phased array elements are arranged in an array on the inner surface of the inner helmet;

[0009] A bracket, which is arranged along the outer periphery of the inner helmet on the outside of the inner helmet. The bracket and the inner helmet are of an integral structure, and rotating shafts are respectively convexly arranged outward on both sides of the bracket. The bracket and the rotating shafts are of an integral structure, and the bracket can rotate along the rotating shafts so that the inner helmet makes a pitching motion around the axial direction of the rotating shafts.

[0010] As an optional scheme of a transcranial focused ultrasound helmet, the transcranial focused ultrasound helmet further comprises:

[0011] Dust cover, the dust cover is hemispherical, the dust cover is arranged outside the inner helmet, the bracket includes a connecting part and an extending part, the connecting part extends outward from the inner helmet, the extending part is formed by extending along the direction from the end of the connecting part away from the inner helmet towards the dome of the inner helmet, an installation groove is formed between the extending part and the inner helmet, and one end of the dust cover away from the dome is fixed in the installation groove.

[0012] As an alternative of a transcranial focused ultrasound helmet, one end of the dust cover away from the dome extends outward with an installation flange, the installation flange is provided with a first positioning hole, and the bottom wall of the installation groove is provided with a second positioning hole corresponding to the first positioning hole, and a fastener passes through the first positioning hole and is connected to the second positioning hole.

[0013] As an alternative of a transcranial focused ultrasound helmet, the rotating shaft protrudes from the outer wall of the extending part.

[0014] As an alternative of a transcranial focused ultrasound helmet, mounting holes are arranged in an array on the inner helmet, and the ultrasonic phased array elements are fixed in the mounting holes.

[0015] As an alternative of a transcranial focused ultrasound helmet, the transcranial focused ultrasound helmet further includes a water bladder, the water bladder is disc-shaped, an annular platform is formed by the inner wall of the connecting part being recessed outward, and the edge of the water bladder covers the annular platform.

[0016] As an alternative of a transcranial focused ultrasound helmet, a plurality of rotatable pressing blocks are arranged on the end surface of the connecting part away from the dome of the inner helmet in the circumferential direction, the pressing blocks have a pressing state and a non-pressing state, when in the pressing state, the pressing blocks press against the outer edge of the water bladder, and when in the non-pressing state, the pressing blocks are separated from the outer edge of the water bladder.

[0017] As an alternative of a transcranial focused ultrasound helmet, a positioning groove is arranged on the annular platform, and a sealing ring is arranged in the positioning groove, and the sealing ring is used for the circumferential sealing of the water bladder.

[0018] As an alternative of a transcranial focused ultrasound helmet, the transcranial focused ultrasound helmet further includes:

[0019] A positioning ring, the positioning ring is detachably connected to the inner wall of the inner helmet, and the positioning ring presses against the inner edge of the water bladder.

[0020] As an alternative of a transcranial focused ultrasound helmet, the transcranial focused ultrasound helmet further includes:

[0021] A pressure sensor, the pressure sensor penetrates from the outside of the inner helmet into the inside of the inner helmet for monitoring the internal pressure of the inner helmet; and / or,

[0022] A temperature sensor, which penetrates from the outside of the inner helmet into the inside of the inner helmet, is used to monitor the internal temperature of the inner helmet.

[0023] Beneficial effects:

[0024] In this embodiment, the inner helmet is a hemispherical structure as a whole, and its inner cavity can adapt to the contour of the head to facilitate wearing. The bracket is arranged annularly on the outer periphery of the inner helmet, and the bracket is used to install multiple groups of other components of the helmet, playing roles of connection, limit and support. At the same time, integral rotating shafts are respectively convexly provided at both ends of the bracket. Through the rotating shafts, the bracket and the inner helmet can achieve pitching motion. By making the inner helmet and the bracket an integral structure and integrating the rotating shafts at both ends of the bracket, the number of parts can be reduced, the compactness of the whole helmet can be improved, and at the same time, the assembly process can be reduced and the cost can be lowered. Description of the drawings

[0025] Figure 1 is the top view of the transcranial focused ultrasound helmet provided by the embodiment of the present utility model;

[0026] Figure 2 is the bottom view of the transcranial focused ultrasound helmet provided by the embodiment of the present utility model;

[0027] Figure 3 is the side view of the transcranial focused ultrasound helmet provided by the embodiment of the present utility model;

[0028] Figure 4 is the axonometric view of the transcranial focused ultrasound helmet provided by the embodiment of the present utility model;

[0029] Figure 5 is the sectional view of the transcranial focused ultrasound helmet provided by the embodiment of the present utility model;

[0030] Figure 6 is Figure 5 the partial enlarged view at A;

[0031] Figure 7 is the first structural schematic diagram of the integral inner helmet and bracket provided by the embodiment of the present utility model;

[0032] Figure 8 is the second structural schematic diagram of the integral inner helmet and bracket provided by the embodiment of the present utility model;

[0033] Figure 9 is the structural schematic diagram of the ultrasonic phased array element provided by the embodiment of the present utility model;

[0034] Figure 10 is the structural schematic diagram of the cooperation between the water bag and the pressing ring provided by the embodiment of the present utility model.

[0035] In the figure:

[0036] 1. Inner helmet; 11. Ultrasonic phased array element; 12. Mounting hole; 13. Water injection hole; 14. First mounting hole; 15. Second mounting hole;

[0037] 2. Bracket; 21. Rotating shaft; 22. Connecting part; 221. Annular platform; 222. Positioning groove; 223. Sealing ring; 23. Extension part; 24. Mounting groove; 241. Second positioning hole; 25. Pressing block; 251. Stud; 252. Step hole;

[0038] 3. Dust cover; 31. Mounting flange; 311. First positioning hole; 32. Cable rack;

[0039] 4. Water bag; 41. Pressing ring; 411. Arc groove;

[0040] 5. Positioning ring; 51. First positioning ring; 52. Second positioning ring; 53. Connecting block; 531. Connecting hole;

[0041] 6. Pressure sensor;

[0042] 7. Temperature sensor. Detailed implementation mode

[0043] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the accompanying drawings.

[0044] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0046] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] Please refer to the attached Figure 1 - attached Figure 6 This embodiment relates to a transcranial focused ultrasound helmet (hereinafter referred to as "helmet"). The helmet includes an inner helmet 1 and a bracket 2. The inner helmet 1 is hemispherical, and ultrasonic phased array elements 11 are arranged in an array on the inner surface of the inner helmet 1; the bracket 2 is annularly arranged on the outer side of the inner helmet 1 along the outer periphery of the inner helmet 1. The bracket 2 and the inner helmet 1 are of an integral structure, and rotating shafts 21 are respectively convexly provided outward on both sides of the bracket 2. The bracket 2 and the rotating shafts 21 are of an integral structure, and the bracket 2 can rotate along the rotating shafts 21 so that the inner helmet 1 makes a pitching motion around the axis of the rotating shafts 21.

[0048] In this embodiment, the inner helmet 1 is a hemispherical structure as a whole, and its inner cavity can adapt to the contour of the head for convenient wearing. The bracket 2 is annularly arranged on the outer periphery of the inner helmet 1 and is used to install multiple groups of other components of the helmet, playing roles of connection, limitation and support. At the same time, integral rotating shafts 21 are respectively convexly provided at both ends of the bracket 2. The rotating shafts 21 are cylinders. Through the rotating shafts 21, the bracket 2 and the inner helmet 1 realize pitching motion. In this embodiment, by making the inner helmet 1 and the bracket 2 of an integral structure and integrating the rotating shafts 21 at both ends of the bracket 2, the number of parts is reduced, the compactness of the whole helmet is improved, and at the same time, the assembly process can be reduced and the cost can be lowered.

[0049] Optionally, the helmet further includes a dust cover 3. The dust cover 3 is hemispherical and covers the outside of the inner helmet 1. The bracket 2 includes a connecting portion 22 and an extending portion 23. The connecting portion 22 extends outward from the inner helmet 1, and the extending portion 23 extends along the direction from the end of the connecting portion 22 away from the inner helmet 1 towards the apex of the inner helmet 1. An installation groove 24 is formed between the extending portion 23 and the inner helmet 1, and the end of the dust cover 3 away from the apex is fixed in the installation groove 24.

[0050] In this embodiment, the dust cover 3 is also hemispherical. The inner helmet 1 is arranged in the inner cavity of the dust cover 3. The radius of the dust cover 3 is slightly larger than that of the inner helmet 1, and there is a certain gap between the dust cover 3 and the inner helmet 1. This gap can be used to accommodate the lead wires of the ultrasonic phased array elements 11. The extending portion 23 is cylindrical and surrounds the inner helmet 1 to form an annular installation groove 24. The dust cover 3 is inserted into the installation groove 24, and the installation groove 24 ensures the accurate positioning of the dust cover 3.

[0051] Furthermore, a cable holder 32 is convexly provided on the outer surface of the dust cover 3. The cable holder 32 is a cylindrical structure, and the lead wires can be led out through the cable holder 32 centrally, thus ensuring the aesthetics and neatness of the outside of the helmet.

[0052] Please refer to Appendix Figure 2 Appendix Figure 7 Appendix Figure 8 and Appendix

[0053] Optionally, an installation flange 31 extends outward from the end of the dust cover 3 away from the apex. The installation flange 31 is provided with a first positioning hole 311, and the bottom wall of the installation groove 24 is provided with a second positioning hole 241 corresponding to the first positioning hole 311. A fastener passes through the first positioning hole 311 and is connected to the second positioning hole 241.

[0054] Optionally, a rotating shaft 21 protrudes from the outer wall of the extending portion 23.

[0055] In this embodiment, the extension portion 23 forms a cylindrical outer wall facing the dome of the inner helmet 1. A small plane is formed on the cylindrical outer wall, and the rotating shaft 21 protrudes from the small plane. At the connection of the rotating shaft 21 and the small plane, a circular protrusion with a certain thickness can be formed to surround the outer periphery of the rotating shaft 21, which is used to reinforce the connection structure between the rotating shaft 21 and the extension portion 23, improve the connection strength of the rotating shaft 21, and at the same time improve the overall service life.

[0056] Please refer to the appendix Figure 7 - appendix Figure 9 , optionally, the inner helmet 1 is arrayed with mounting holes 12, and the ultrasonic phased array elements 11 are fixed in the mounting holes 12.

[0057] In this embodiment, the mounting holes 12 are circular holes, the main body of the ultrasonic phased array element 11 is a cylinder adapted to the circular holes, the ultrasonic phased array element 1 is embedded inside the mounting holes 12, and the connection and fixation between the ultrasonic phased array element 1 and the inside of the mounting holes 12 are further realized by means of glue bonding.

[0058] Please refer to the appendix Figure 6 , appendix Figure 8 and appendix Figure 10 Optionally, the helmet further includes a water bladder 4. The water bladder 4 is disc-shaped, and the inner wall of the connecting portion 22 is recessed outward to form an annular platform 221, and the edge of the water bladder 4 is covered on the annular platform 221.

[0059] The water bladder 4 has a certain flexibility and plays a key role in ultrasonic therapy. The main function of the water bladder 4 is to provide a medium that enables ultrasonic waves to more effectively pass through the skull and reach the treatment area. Due to the absorption and scattering of ultrasonic waves by the skull, it may be difficult to directly perform ultrasonic therapy through the skull. However, the water inside the water bladder 4, as a good sound propagation medium, can significantly reduce the loss of ultrasonic waves during propagation, thereby improving the treatment efficiency. In this embodiment, the water bladder 4 is integrally disc-shaped, with an opening in the middle of the water bladder 4. The water bladder 4 gradually forms an annular multi-stage conical step structure from the edge inward, and the steps between each stage are connected by arc surfaces. The inner wall of the connecting portion 22 is recessed outward to form an annular platform 221, and the outer edge of the water bladder 4 is lapped on the annular platform 221 to form a coverage of the inner cavity of the entire inner helmet 1.

[0060] Please refer to the appendix Figure 5 and appendix Figure 6 , further, a plurality of rotatable pressing blocks 25 are provided along the circumferential direction on the end surface of the connecting portion 22 away from the dome of the inner helmet 1. The pressing blocks 25 have a pressing state and a non-pressing state. When in the pressing state, the pressing blocks 25 press against the outer edge of the water bladder 4, and when in the non-pressing state, the pressing blocks 25 are separated from the outer edge of the water bladder 4.

[0061] In this embodiment, a plurality of pressing blocks 25 are arranged at intervals along the circumferential direction of the bracket 2, and the plurality of pressing blocks 25 are arranged at equal angular intervals. A stepped hole 252 is provided on the pressing block 25, and each pressing block 25 is provided with a stud 251. The stud 251 passes through the stepped hole 252 and is inserted into the bracket 2. The stud 251 and the bracket 2 can be in interference fit or screwed connection. The head of the stud 251 abuts against the stepped surface in the stepped hole 252 to realize the limit of the pressing block 25 in the depth direction of the inner helmet 1. At the same time, the pressing block 25 is in clearance fit with the stud 251 through the stepped hole 252, so that the pressing block 25 can rotate around the stud 251 as an axis. In addition, in order to facilitate the installation of the stud 251, an internal hexagonal groove is provided at the head of the stud 251, and the stud 251 is screwed and fixed by cooperating with the internal hexagonal groove through a hexagonal wrench. When in the crimping state, the pressing block 25 is rotated until one end of it abuts against the outer edge of the water bag 4 to prevent the water bag 4 from falling off. Further, when in the non-crimping state, that is, when the water bag 4 needs to be disassembled, by sequentially rotating the pressing block 25 to a certain angle, the water bag 4 can be conveniently taken out.

[0062] Please refer to the appendix Figure 10 Optionally, in this embodiment, a pressing ring 41 is covered on the outer edge of the water bag 4. The pressing ring 41 is located between the outer edge of the water bag 4 and the pressing block 25. When in the crimping state, the pressing block 25 abuts against the pressing ring 41. The pressing ring 41 can ensure that the water bag 4 has equal extrusion force at each position in the circumference, thereby improving the sealing performance of the water bag 4. A plurality of arc grooves 411 are provided on the top wall of the pressing ring 41. When in the crimping state, a part of the pressing block 25 is placed inside the arc groove 411 and abuts against the bottom wall of the arc groove 411. The arc groove 411 can avoid the pressing block 25 in the horizontal direction, so that the overall height of the pressing ring 41 can be higher than the bottom wall of the pressing block 25, and the strength of the pressing ring 41 is improved.

[0063] Further, the arc groove 411 is inclined relative to the bottom wall of the pressing block 25. As the pressing block 25 twists and continuously enters the arc groove 411, the extrusion force between the two continuously increases, which is convenient for the operator to sense the extrusion process of the rotating pressing block 25, so as to smoothly press the pressing ring 41.

[0064] Please refer to the appendix Figure 6 Optionally, a positioning groove 222 is provided on the annular platform 221, and a sealing ring 223 is provided in the positioning groove 222. The sealing ring 223 is used for the circumferential sealing of the water bag 4.

[0065] In this embodiment, an annular positioning groove 222 is provided on the top wall of the annular platform 221. The sealing ring 223 can be an O-ring with a width greater than the width of the positioning groove 222. One side of the sealing ring 223 is placed in the positioning groove 222, and the other side of the sealing ring 223 abuts against the outer edge of the water bag 4 through the pressing force to form a circumferential seal.

[0066] Optionally, the helmet further includes a positioning ring 5, which is detachably connected to the inner wall of the inner helmet 1, and the positioning ring 5 presses against the inner edge of the water bladder 4.

[0067] Positioning is achieved through the positioning ring 5 in the depth direction of the inner helmet 1. Specifically, the positioning ring 5 includes a first positioning ring 51 and a second positioning ring 52. The first positioning ring 51 and the second positioning ring 52 are coaxial and spaced apart. The first positioning ring 51 is arranged close to the spherical top of the inner helmet 1. The diameters of the first positioning ring 51 and the second positioning ring 52 can be the same or different. The first positioning ring 51 and the second positioning ring 52 are connected by a plurality of connecting blocks 53. At the same time, connecting holes 531 are provided on several of the connecting blocks 53, and screws are threadedly connected to the inner wall of the inner helmet 1 through the connecting holes 531. The second positioning ring 52 abuts against the inner edge of the water bladder 4 in the depth direction of the inner helmet 1.

[0068] In this embodiment, the bracket 2 is provided with a plurality of water injection holes 13 along the circumferential direction. The water injection holes 13 penetrate into the inner cavity of the inner helmet 1. The water injection holes 13 are distributed near the water bladder 4 and at a position relatively lower than the water bladder 4. The gap between the first positioning ring 51 and the second positioning ring 52 is opposite to the water injection holes 13. The double-ring structure of the positioning ring 5 effectively avoids the position of the water injection holes 13.

[0069] Please refer to the append Figure 1 、append Figure 2 and append Figure 8 , further, the helmet further includes a pressure sensor 6. The pressure sensor 6 penetrates from the outside of the inner helmet 1 into the inside of the inner helmet 1 for monitoring the internal pressure of the inner helmet 1.

[0070] Specifically, a first mounting hole 14 is provided on the surface of the inner helmet 1. The first mounting hole 14 is a circular hole adapted to the main structure of the pressure sensor 6. Of course, in other embodiments, the shape of the first mounting hole 14 can be adjusted adaptively. The working end of the pressure sensor 6 penetrates into the interior through the first mounting hole 14 for monitoring the internal pressure of the inner helmet 1.

[0071] Please refer to the append Figure 1 、append Figure 2 and append Figure 7 , in addition, the helmet further includes a temperature sensor 7. The temperature sensor 7 penetrates from the outside of the inner helmet 1 into the inside of the inner helmet 1 for monitoring the internal temperature of the inner helmet 1.

[0072] The installation structure of the temperature sensor 7 is similar to that of the pressure sensor 6. A second mounting hole 15 is provided on the surface of the inner helmet 1. The second mounting hole 15 is a circular hole adapted to the main structure of the temperature sensor 7. Of course, in other embodiments, the shape of the second mounting hole 15 can be adjusted adaptively. The working end of the temperature sensor 7 penetrates into the interior through the second mounting hole 15 for monitoring the internal temperature of the inner helmet 1.

[0073] Obviously, the above-mentioned embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Transcranial focused ultrasound helmet, characterized in that, Comprising: An inner helmet (1), the inner helmet (1) being hemispherical, and ultrasonic phased array elements (11) being arrayed on the inner surface of the inner helmet (1); A bracket (2), which is annularly arranged on the outer side of the inner helmet (1) along the outer periphery of the inner helmet (1). The bracket (2) and the inner helmet (1) are of an integral structure, and rotating shafts (21) are respectively convexly provided on both sides of the bracket (2) towards the outside. The bracket (2) and the rotating shafts (21) are of an integral structure, and the bracket (2) can rotate along the rotating shafts (21) so that the inner helmet (1) makes a pitching motion around the axial direction of the rotating shafts (21).

2. The transcranial focused ultrasound helmet according to claim 1, characterized in that, The transcranial focused ultrasound helmet further comprises: A dust-proof cover (3), the dust-proof cover (3) being hemispherical, and the dust-proof cover (3) covering the outer side of the inner helmet (1). The bracket (2) includes a connecting portion (22) and an extending portion (23). The connecting portion (22) extends outward from the inner helmet (1), and the extending portion (23) is formed by extending from one end of the connecting portion (22) away from the inner helmet (1) towards the dome direction of the inner helmet (1). An installation groove (24) is formed between the extending portion (23) and the inner helmet (1), and one end of the dust-proof cover (3) away from the dome is fixed in the installation groove (24).

3. The transcranial focused ultrasound helmet according to claim 2, wherein, One end of the dust-proof cover (3) away from the dome extends outward with an installation flange (31), and a first positioning hole (311) is provided on the installation flange (31). A second positioning hole (241) corresponding to the first positioning hole (311) is provided on the bottom wall of the installation groove (24), and a fastener passes through the first positioning hole (311) and is connected to the second positioning hole (241).

4. The transcranial focused ultrasound helmet according to claim 2, wherein, The rotating shafts (21) are convexly provided on the outer wall of the extending portion (23).

5. The transcranial focused ultrasound helmet according to claim 1, characterized in that Mounting holes (12) are arrayed on the inner helmet (1), and the ultrasonic phased array elements (11) are fixed in the mounting holes (12).

6. The transcranial focused ultrasound helmet according to claim 2, characterized in that, The transcranial focused ultrasound helmet further comprises a water bag (4), the water bag (4) being disc-shaped. An annular platform (221) is formed by the inner wall of the connecting portion (22) being recessed outward, and the edge of the water bag (4) is covered on the annular platform (221).

7. The transcranial focused ultrasound helmet according to claim 6, wherein, A plurality of rotatable pressing blocks (25) are provided on the end surface of the connecting portion (22) away from the dome of the inner helmet (1) along the circumferential direction. The pressing blocks (25) have a pressing state and a non-pressing state. In the pressing state, the pressing blocks (25) press against the outer edge of the water bag (4), and in the non-pressing state, the pressing blocks (25) are separated from the outer edge of the water bag (4).

8. The transcranial focused ultrasound helmet according to claim 6, characterized in that, A positioning groove (222) is provided on the annular platform (221), and a sealing ring (223) is provided in the positioning groove (222). The sealing ring (223) is used for the circumferential sealing of the water bag (4).

9. The transcranial focused ultrasound helmet according to claim 6, wherein The transcranial focused ultrasound helmet further comprises: A positioning ring (5), the positioning ring (5) being detachably connected to the inner wall of the inner helmet (1), and the positioning ring (5) pressing against the inner edge of the water bag (4).

10. The transcranial focused ultrasound helmet according to claim 1, characterized in that, The transcranial focused ultrasound helmet further comprises: A pressure sensor (6) that penetrates from the outside of the inner helmet (1) into the inside of the inner helmet (1) for monitoring the internal pressure of the inner helmet (1); and / or, A temperature sensor (7) that penetrates from the outside of the inner helmet (1) into the inside of the inner helmet (1) for monitoring the internal temperature of the inner helmet (1).

Images