Transcranial magnetic stimulation navigation device

Abstract

The utility model relates to the technical field of medical auxiliary instruments. A transcranial magnetic stimulation navigation device comprises a head locator, the head locator comprises an elastic fixing band and three head infrared markers, the elastic fixing band is connected end to end to define an annular structure, and the three head infrared markers are used for being installed on the front side, the left side and the right side of the annular structure respectively; a handle navigation part is further included, the handle navigation part comprises a first supporting frame and a second supporting frame which are used for being connected with the double-magnetic-ring handle, the first supporting frame comprises a first supporting rod and a first connecting rod, and an infrared marker is installed on the first connecting rod; the second supporting frame comprises a second supporting rod, a second connecting rod and three extension rods, the second connecting rod is in sliding connection with the first connecting rod, and the other end of the first supporting rod is connected with the second connecting rod and the three extension rods; the three extension rods are provided with infrared markers. According to the utility model, the wearing mode of the elastic fixing band has no requirements on the head circumference and the head shape, and the universality is strong.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, specifically to a transcranial magnetic stimulation device. Background Technology

[0002] Transcranial magnetic stimulation (TMS) is a painless, non-invasive, and green treatment method. Magnetic signals can penetrate the skull without attenuation to stimulate brain nerves. In practical applications, it is not limited to stimulating the brain; it can also stimulate peripheral nerves and muscles. Therefore, it is now called "magnetic stimulation".

[0003] Transcranial magnetic stimulation (TMS) is currently used in medicine to perform repeated transcranial magnetic stimulation on damaged areas of the head.

[0004] Currently, the placement of transcranial magnetic stimulation (TMS) handpieces relies on the therapist's experience, which is not intuitive, has low transmissibility, poor reproducibility, and low precision.

[0005] Currently, there are also issues with the use of head-mounted anatomical position indicator caps, which have poor universality due to different head shapes and sizes, and the wearing process affects the marking of anatomical positions, resulting in large errors.

[0006] The publication number CN220530507U discloses a glasses positioning device for rapid registration in transcranial magnetic stimulation navigation. The drawback is that the structure of the frame and the navigation target is relatively fixed, and it cannot be adaptively adjusted according to the different head circumferences of the patients. It cannot simulate the human head circumference, which is not conducive to ensuring navigation accuracy. Utility Model Content

[0007] In view of the problems existing in the prior art, the present invention provides a transcranial magnetic stimulation navigation device, which has solved at least one of the above-mentioned technical problems.

[0008] The technical solution of this utility model is: a transcranial magnetic stimulation navigation device, including a head locator, characterized in that the head locator includes an elastic fixing band and three head infrared markers, the three head infrared markers are detachably connected to the elastic fixing band, the elastic fixing band is connected end to end to form a ring structure, and the three head infrared markers are respectively used to be installed on the front side and the left and right sides of the ring structure.

[0009] It also includes a handle navigation component, which includes a first support frame and a second support frame for connecting a dual magnetic ring handle. The first support frame includes a first support rod and a first connecting rod. The first support rod and the first connecting rod are connected in an L-shaped structure. An infrared marker for the handle is installed at the point where the first connecting rod connects to the first support rod.

[0010] The second support frame includes a second support rod, a second connecting rod, and three extension rods. The first support rod and the second support rod are parallel to each other, and the second connecting rod is slidably connected to the first connecting rod.

[0011] One end of the first support rod is connected to the double magnetic ring handle, and the other end of the first support rod is connected to the second connecting rod and the three extension rods;

[0012] The second connecting rod and the three extension rods are perpendicular to each other in pairs. The three extension rods are of different lengths, and the ends of the three extension rods away from the second support rod are equipped with infrared markers for the handle.

[0013] This invention features an elastic strap that is suitable for all head sizes and shapes, making it highly versatile. Furthermore, the first and second connecting rods are tightly fitted together via telescopic components, allowing it to be used with double magnetic ring handles from different brands.

[0014] This invention incorporates infrared markers on both the dual magnetic ring handle and the head locator, facilitating positioning in three-dimensional space with the assistance of an infrared capture system. By fixing the infrared markers to the dual magnetic ring handle and the patient's head respectively, the dual magnetic ring handle and the head become visible in real-time within the virtual three-dimensional space of the infrared capture system. By creating an anatomical coordinate system for the head and a coordinate system for the dual magnetic ring handle, arbitrary combinations of the spatial positions and angles of the two coordinate systems can be achieved, thereby enabling navigation.

[0015] More preferably, the first connecting rod has a guide groove for slidingly connecting the second connecting rod.

[0016] More preferably, the head infrared marker is detachably connected to the annular structure via Velcro.

[0017] More preferably, the head infrared marker is an active infrared emitting marker or a passive infrared emitting marker;

[0018] The infrared marker on the handle is either an active infrared emitting marker or a passive infrared emitting marker.

[0019] More preferably, both the first support rod and the second support rod are vertically disposed on the double magnetic ring handle.

[0020] More preferably, the first support rod and the second support rod are installed at the center of the two magnetic rings of the double magnetic ring handle.

[0021] More preferably, the first connecting rod and the three extension rods are each provided with a slot for mounting the infrared marker on the handle.

[0022] More preferably, the bottom of the first support rod and the second support rod are connected to a support base;

[0023] The dual magnetic ring handle has a mounting groove for embedding the support base, and the mounting groove is glued to the support base.

[0024] More preferably, the elastic fixing band includes three elastic bands, each of which is equipped with a head infrared marker, and any two of the three elastic bands are detachably connected by Velcro.

[0025] It facilitates adjusting the position of the infrared marker on the head.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] 1) Comfortable to wear. The stretchable elastic strap is comfortable to wear and does not feel heavy.

[0028] 2) Precise navigation. The precision of the navigation system of this invention relies on the precision of the infrared motion capture system, which is generally at the millimeter level, far exceeding the handheld positioning precision of a therapist.

[0029] 3) The highly versatile and retractable elastic fixation strap has no requirements for head circumference or head shape, making it highly versatile; at the same time, the first connecting rod and the second connecting rod are tightly fitted through telescopic rods, which can be used with different brands of dual magnetic ring handles, which are also the most common treatment handles in clinical practice.

[0030] 4) Low cost. Less material is used, resulting in lower cost; infrared markers are currently available in a very mature market and can be purchased as ordinary consumables. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present utility model;

[0032] Figure 2 This is a schematic diagram of a handle navigation component according to a specific embodiment 1 of the present utility model;

[0033] Figure 3 This is an exploded view of the handle navigation component of a specific embodiment 1 of this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the double magnetic ring handle in specific embodiment 1 of this utility model;

[0035] Figure 5 This is a schematic diagram of the head locator in a specific embodiment 1 of the present invention.

[0036] In the figure, 1 is the elastic fixing strap, 2 is the head infrared marker, 3 is the handle navigation component, 4 is the double magnetic ring handle, 31 is the first support rod, 32 is the first connecting rod, 33 is the second support rod, 34 is the second connecting rod, 35 is the extension rod, and 36 is the handle infrared marker. Detailed Implementation

[0037] See Figures 1 to 4 Specific embodiment 1: A transcranial magnetic stimulation navigation device includes a head locator, which includes an elastic fixing band 1 and three head infrared markers 2. The three head infrared markers 2 are detachably connected to the elastic fixing band 1. The elastic fixing band 1 is connected end to end to form a ring structure. The three head infrared markers 2 are respectively used to install on the front side and the left and right sides of the ring structure. It also includes a handle navigation component 3, which includes a first support frame and a second support frame for connecting a double magnetic ring handle 4. The first support frame includes a first support rod 31 and a first connecting rod 32. The first support rod 31 and the first connecting rod 32 are connected in an L-shaped structure. An infrared marker 36 for the handle is installed at the connection point between rod 32 and the first support rod 31. The second support frame includes a second support rod 33, a second connecting rod 34, and three extension rods 35. The first support rod 31 and the second support rod 33 are parallel to each other, and the second connecting rod 34 is slidably connected to the first connecting rod 32. One end of the first support rod 31 is connected to the double magnetic ring handle 4, and the other end of the first support rod 31 is connected to the second connecting rod 34 and the three extension rods 35. The second connecting rod 34 and the three extension rods 35 are perpendicular to each other in pairs. The three extension rods 35 have different lengths, and the ends of the three extension rods 35 furthest from the second support rod 33 are equipped with the infrared marker 36 for the handle. This utility model has no requirements for head circumference or head shape due to the wearing method of the elastic fixing strap 1, and has strong versatility. At the same time, the first connecting rod 32 and the second connecting rod 34 are tightly matched by telescopic rods, which can be used for double magnetic ring handles 4 of different brands. This invention incorporates infrared markers 2 on both the dual magnetic ring handle 4 and the head locator, facilitating positioning in three-dimensional space with the assistance of an infrared capture system. By fixing the infrared markers to the dual magnetic ring handle 4 and the patient's head respectively, the dual magnetic ring handle 4 and the head become visible in real-time within the virtual three-dimensional space of the infrared capture system. By creating an anatomical coordinate system for the head and a coordinate system for the dual magnetic ring handle 4, arbitrary combinations of the spatial positions and angles of the two coordinate systems can be achieved, thereby enabling navigation.

[0038] The first connecting rod 32 has a guide groove for sliding connection to the second connecting rod 34.

[0039] The head infrared marker 2 is detachably connected to the ring structure via Velcro.

[0040] The head infrared marker 3 is either an active infrared emitting marker or a passive infrared emitting marker; the handle infrared marker 36 is either an active infrared emitting marker or a passive infrared emitting marker.

[0041] Both the first support rod 31 and the second support rod 33 are vertically mounted on the double magnetic ring handle 4. The first support rod 31 and the second support rod 33 are installed at the center of the two magnetic rings of the double magnetic ring handle 4. The bottom of the first support rod 31 and the second support rod 33 are connected to support seats; the double magnetic ring handle 4 has a mounting groove for embedding the support seat, and the mounting groove is glued to the support seat.

[0042] The first connecting rod 32 and the three extension rods 35 are all provided with slots for mounting the infrared markers 36 on the handle.

[0043] When using, place the elastic fixation strap 1 on the head, with the lower edge of the elastic fixation strap 1 tangent to the upper edge of the left and right eye sockets and the upper edge of the left and right ears, and smoothly transitioning to other positions. Place the head infrared markers 2 in front of the midsagittal plane and above the left and right ears, respectively.

[0044] The three-dimensional spatial position of the two magnetic ring centers of the dual magnetic ring handle 4 is determined by the position of the infrared marker 2 on the handle navigation component 3. The three-dimensional spatial position of the head is determined by the position of the head infrared marker 2 on the elastic fixing strap 1. The user adjusts the position of the dual magnetic ring handle 4 according to the position of the head and the position of the dual magnetic ring handle 4.

[0045] See Figure 5 In specific embodiment 2, based on specific embodiment 1, the elastic fixing band 1 includes three elastic bands, each with a head infrared marker 2 installed. Any two of the three elastic bands are detachably connected via Velcro, facilitating adjustment of the position of the head infrared marker 2. The inner sides of both ends of the elastic bands are the female hair side of the Velcro, and the outer sides are the male hair side of the Velcro. The three elastic bands are respectively a first fixing band for fixing to the forehead, a second fixing band for fixing to the left side, and a third fixing band for fixing to the right side. The length of the first fixing band is shorter than the lengths of the second and third fixing bands.

[0046] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A transcranial magnetic stimulation navigation device, comprising a head locator, characterized in that, The head locator includes an elastic fixing strap and three head infrared markers. The three head infrared markers are detachably connected to the elastic fixing strap. The elastic fixing strap is connected end to end to form a ring structure. The three head infrared markers are respectively used to install on the front side and the left and right sides of the ring structure. It also includes a handle navigation component, which includes a first support frame and a second support frame for connecting a dual magnetic ring handle. The first support frame includes a first support rod and a first connecting rod. The first support rod and the first connecting rod are connected in an L-shaped structure. An infrared marker for the handle is installed at the point where the first connecting rod connects to the first support rod. The second support frame includes a second support rod, a second connecting rod, and three extension rods. The first support rod and the second support rod are parallel to each other, and the second connecting rod is slidably connected to the first connecting rod. One end of the first support rod is connected to the double magnetic ring handle, and the other end of the first support rod is connected to the second connecting rod and the three extension rods; The second connecting rod and the three extension rods are perpendicular to each other in pairs. The three extension rods are of different lengths, and the ends of the three extension rods away from the second support rod are equipped with infrared markers for the handle.

2. The transcranial magnetic stimulation navigation device according to claim 1, characterized in that: The first connecting rod has a guide groove that allows the second connecting rod to slide.

3. The transcranial magnetic stimulation navigation device according to claim 1, characterized in that: The head infrared marker is detachably connected to the ring structure via Velcro.

4. The transcranial magnetic stimulation navigation device according to claim 1, characterized in that: The head infrared marker is either an active infrared emitting marker or a passive infrared emitting marker; The infrared marker on the handle is either an active infrared emitting marker or a passive infrared emitting marker.

5. A transcranial magnetic stimulation navigation device according to claim 1, characterized in that: Both the first support rod and the second support rod are vertically mounted on the double magnetic ring handle.

6. A transcranial magnetic stimulation navigation device according to claim 1, characterized in that: The first support rod and the second support rod are installed at the center of the two magnetic rings of the double magnetic ring handle.

7. A transcranial magnetic stimulation navigation device according to claim 1, characterized in that: The first connecting rod and the three extension rods are all provided with slots for mounting infrared markers on the handle.

8. A transcranial magnetic stimulation navigation device according to claim 1, characterized in that: The bottom of the first support rod and the second support rod are connected to support bases; The dual magnetic ring handle has a mounting groove for embedding the support base, and the mounting groove is glued to the support base.

9. A transcranial magnetic stimulation navigation device according to claim 1, characterized in that: The elastic fixing band includes three elastic bands, each of which is equipped with a head infrared marker. Any two of the three elastic bands can be detachably connected by Velcro.

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