CN219662659U - High-precision intracranial target positioning device based on longitude and latitude concept - Google Patents
High-precision intracranial target positioning device based on longitude and latitude concept Download PDFInfo
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- CN219662659U CN219662659U CN202220703336.4U CN202220703336U CN219662659U CN 219662659 U CN219662659 U CN 219662659U CN 202220703336 U CN202220703336 U CN 202220703336U CN 219662659 U CN219662659 U CN 219662659U
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- 238000007917 intracranial administration Methods 0.000 title claims abstract description 25
- 210000004761 scalp Anatomy 0.000 description 16
- 210000004556 brain Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 238000011491 transcranial magnetic stimulation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 210000005013 brain tissue Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002964 excitative effect Effects 0.000 description 1
- 230000005714 functional activity Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Abstract
The utility model belongs to the technical field of medical instruments, and particularly relates to a high-precision intracranial target positioning device based on a longitude and latitude concept, which comprises a base, wherein universal wheels are rotatably arranged at four corners of the bottom of the base, a main rod is fixedly arranged at the top of the base, the main rod is in a hollow structure, a motor is fixedly arranged at the top of the main rod, an output shaft of the motor extends into the main rod, a first screw rod is fixedly sleeved with the first screw rod, a first screw rod guide sleeve is in threaded sleeve, a connecting block is fixedly arranged on the first screw rod guide sleeve, a rotating shaft is rotatably arranged on the connecting block, a vertical part of an L-shaped rod is fixedly arranged on the rotating shaft, a worm wheel is fixedly sleeved on the rotating shaft, a latitude reference surface is fixedly arranged at one end of the rotating shaft, and a round rod is rotatably arranged on the horizontal part of the L-shaped rod. The high-precision intracranial target positioning device based on the longitude and latitude concept has the advantages of simple structure and convenience in use, and is convenient for accurate positioning.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a high-precision intracranial target positioning device based on longitude and latitude concepts.
Background
Transcranial magnetic stimulation is a noninvasive neural intervention technology, and based on the principle of electromagnetic interconversion, a time-varying induction magnetic field can be generated by rapidly charging and discharging a stimulation coil, and an induction electric field and an induction current can be generated in human tissues by the time-varying magnetic field, so that the activity of neurons in brain tissues is excitatory or inhibitory. The human brain can be divided into a plurality of functionally specialized subregions, and in order to regulate the functional activity of an abnormal brain region without affecting other normal brain regions, it is clinically necessary to find the body surface projection position of a specific functional region on the scalp surface of a patient. Because of the large individual differences in shape and function of the skull shape and brain structure, it is difficult to precisely locate the position of each patient's specific region to be stimulated without equipment assistance. To achieve this goal, products on the market are mainly located by an infrared navigation system, which acquires a three-dimensional brain magnetic resonance scanning image to be tested, and associates the structure in the brain with the body surface characteristics of the scalp to achieve individuation location. However, this equipment is expensive (over 80 tens of thousands), complex to use and takes up a large area. And, it is also required that the device is employed for each patient per treatment, thus bringing extremely high costs to the treatment of transcranial magnetic stimulation.
The existing optical navigation equipment is expensive and ancient, occupies large area, is complex to operate and needs to be supported in a professional knowledge background. The novel locating tool and method are simple and easy to develop based on the linear distance between the target brain region and the craniofacial marker point.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a high-precision intracranial target positioning device based on longitude and latitude concepts.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a high accuracy intracranial target positioner based on longitude and latitude notion, includes the base, universal wheel and top fixed mounting have the mobile jib all to rotate in the bottom four corners of base, mobile jib is hollow structure setting and top fixed mounting have the motor, and the output shaft of motor extends to in the mobile jib and fixed the first lead screw that has cup jointed, first lead screw guide pin has been cup jointed to the screw thread on the first lead screw, fixed mounting has the connecting block on the first lead screw guide pin, the pivot is installed in the connecting block rotation, fixed mounting has the vertical part of L type pole in the pivot and fixed the worm wheel and one end fixed mounting have latitude reference surface in the pivot, the round bar is installed in the horizontal part of L type pole in the rotation, the bottom fixed mounting of round bar has longitude chi and top fixed the gear that cup joints, the longitude chi is hollow structure setting and the same second lead screw of rotation on the inner wall of both sides, the screw thread cup joints the second lead screw guide pin has the longitude reference surface, the top montant of the horizontal part of L type pole is provided with the montant, the screw thread is installed on the screw thread, one end of the rotation has the inside of a rack with the inside of the horizontal part of L type pole and the inside of the rack, the inside of a rack is equipped with the latitude reference surface.
Preferably, a first sliding groove is formed in the inner wall of one side of the main rod along the vertical portion, and a first sliding block fixedly connected with the first screw rod guide sleeve is arranged in the first sliding groove in a sliding mode.
Preferably, one side of the connecting block is rotatably provided with a worm, the worm is meshed with the worm wheel, and one end of the worm is fixedly sleeved with a second turntable.
Preferably, one end of the second screw rod extends out of the longitude rule and is fixedly sleeved with a knob.
Preferably, a sliding rail is fixedly arranged on the horizontal part of the L-shaped rod, and a connecting block fixedly connected with the rack is slidably arranged on the sliding rail.
Preferably, a second sliding groove is formed in the inner wall of the top of the longitude ruler along the horizontal direction, and a second sliding block fixedly connected with the second screw rod guide sleeve is arranged in the second sliding groove in a sliding mode.
According to the high-precision intracranial target positioning device based on the longitude and latitude concept, the motor is started to drive the first screw rod to rotate, so that the height of the first screw rod guide sleeve can be adjusted, namely the heights of the latitude reference surface and the longitude reference surface can be adjusted, and the height of a patient can be adjusted according to the height of the patient.
The worm is driven to rotate through rotating the second turntable, the worm drives the worm wheel and the worm to rotate, the L-shaped rod and the latitude reference surface can be driven to rotate simultaneously, then the first turntable drives the threaded rod to rotate, the rack can be horizontally adjusted, the rack drives the gear and the longitude ruler to rotate, the longitude reference surface can be driven to rotate, the second screw is driven to rotate through rotating the knob, the position of the second screw guide sleeve can be adjusted, and the position of the longitude reference surface can be adjusted. Through the series of operations, the position of the intracranial target is conveniently and precisely positioned by matching with the positioner. The high-precision intracranial target positioning device based on the longitude and latitude concept has the advantages of simple structure and convenience in use, and is convenient for accurate positioning.
Drawings
FIG. 1 is a schematic diagram of a high-precision intracranial target positioning device based on longitude and latitude concepts;
FIG. 2 is a schematic diagram of a portion A of the high-precision intracranial target positioning device based on longitude and latitude concepts;
FIG. 3 is a partial side view of a connecting block of the high-precision intracranial target positioning device based on longitude and latitude concepts;
fig. 4 is a schematic diagram of an internal structure of the high-precision intracranial target positioning device based on longitude and latitude concepts related to a longitude ruler.
In the figure: 1 base, 2 mobile jib, 3 first lead screw, 4 motor, 5 knob, 6L pole, 7 latitude reference surface, 8 locator, 9 longitude reference surface, 10 longitude chi, 11 first carousel, 12 threaded rod, 13 round bar, 14 montants, 15 gear, 16 racks, 17 second lead screw, 18 second lead screw guide pin bushing, 19 connecting block, 20 worm, 21 first lead screw guide pin bushing, 22 pivot, 23 worm wheel, 24 second carousel.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
Referring to fig. 1-4, a high-precision intracranial target positioning device based on longitude and latitude concepts comprises a base 1, universal wheels are rotatably mounted at four corners at the bottom of the base 1, a main rod 2 is fixedly mounted at the top, the main rod 2 is in a hollow structure, a motor 4 is fixedly mounted at the top, an output shaft of the motor 4 extends into the main rod 2 and is fixedly sleeved with a first screw rod 3, a first screw rod guide sleeve 21 is screwed on the first screw rod 3, a connecting block 19 is fixedly mounted on the first screw rod guide sleeve 21, a rotating shaft 22 is rotatably mounted on the connecting block 19, a vertical part of an L-shaped rod 6 is fixedly mounted on the rotating shaft 22, a worm wheel 23 is fixedly sleeved on the rotating shaft 22, a latitude reference surface 7 is fixedly mounted at one end, a round rod 13 is rotatably mounted on a horizontal part of the L-shaped rod 6, a longitude ruler 10 is fixedly mounted at the bottom end of the round rod 13, a gear 15 is fixedly sleeved at the top, the longitude ruler 10 is in a hollow structure, the same second screw rod 17 is rotatably mounted on inner walls of two sides, a second screw rod guide sleeve 18 is screwed on the second screw rod 17, a longitude guide sleeve 9 is fixedly mounted at the bottom end of the second screw rod guide sleeve 18, a longitude reference surface 9 is fixedly mounted on the second screw rod guide sleeve 18, a longitude guide sleeve 14 is screwed on a gear 12 is rotatably mounted on the horizontal part of the vertical rod 6, a longitude guide rod 12 is rotatably mounted on the horizontal part of the vertical rod 12, a longitude guide rod 12 is fixedly mounted on the vertical rod 12 is rotatably mounted on the vertical rod 12, a longitudinal rod 12 is fixedly mounted on the vertical rod 12, and is fixedly mounted on the longitudinal rod 12 is fixedly mounted on the longitudinal rod guide rod 12 and has a longitudinal rod 15, and has a longitudinal rod 15.
Example two
In the utility model, a first sliding groove is formed on the inner wall of one side of the main rod 2 along the vertical part, a first sliding block fixedly connected with a first screw guide sleeve 21 is slidably arranged in the first sliding groove, and the first sliding groove and the first sliding block facilitate the movement of the first screw guide sleeve 21.
In the utility model, one side of the connecting block 19 is rotatably provided with the worm 20, the worm 20 is meshed with the worm wheel 23, one end of the worm 20 is fixedly sleeved with the second rotary table 24, the worm 20 is driven to rotate by rotating the second rotary table 24, and the worm 20 drives the worm wheel 23 and the worm 20 to rotate, so that the L-shaped rod 6 and the latitude datum plane 7 are driven to rotate simultaneously.
In the utility model, one end of the second screw rod 17 extends out of the longitude rule 10 and is fixedly sleeved with the knob 5, and the movement of the second screw rod 17 is facilitated through the knob 5.
In the utility model, the horizontal part of the L-shaped rod 6 is fixedly provided with the sliding rail, the sliding rail is provided with the connecting block fixedly connected with the rack 16 in a sliding manner, and the movement of the rack 16 is facilitated through the sliding rail and the connecting block.
In the utility model, a second sliding groove is formed on the top inner wall of the longitude ruler 10 along the horizontal direction, a second sliding block fixedly connected with the second screw guide sleeve 18 is slidably arranged in the second sliding groove, and the second sliding groove and the second sliding block facilitate the movement of the second screw guide sleeve 18.
According to the utility model, the motor 4 is started to drive the first screw rod 3 to rotate, so that the height of the first screw rod guide sleeve 21 can be adjusted, the heights of the latitude reference surface 7 and the longitude reference surface 9 can be adjusted, and the height of a patient can be adjusted according to the height of the patient.
The worm 20 is driven to rotate by rotating the second turntable 24, the worm 20 drives the worm wheel 23 and the worm 20 to rotate, the L-shaped rod 6 and the latitude reference surface 7 can be driven to rotate simultaneously, then the first turntable 11 drives the threaded rod 12 to rotate, the rack 16 can be horizontally adjusted, the rack 16 drives the gear 15 and the longitude ruler 10 to rotate, the longitude reference surface 9 can be driven to rotate, the second screw rod 17 is driven to rotate by rotating the knob 5, the position of the second screw rod guide sleeve 18 can be adjusted, and the position of the longitude reference surface 9 can be adjusted. Through the series of operations, the position of the intracranial target point can be accurately and definitely positioned by matching with the positioner 8. The high-precision intracranial target positioning device based on the longitude and latitude concept has the advantages of simple structure and convenience in use, and is convenient for accurate positioning.
The technical scheme of the utility model is as follows:
MRI images of the patient are acquired (this is in conjunction with optical navigation) and the location of the intracranial target (medical studies have different target recommendations for different diseases, which are known and are outside the scope of the present utility model).
The first calculation step is to find the nearest position on the scalp to the intracranial target based on the MRI image of the individual, and mark the nearest position as the scalp target. The optical navigation device on the market also uses a similar method to find the position of the scalp target point first, and then starts to position the relative position of the magnetic stimulation coil and the scalp target point by using optics.
Calculating three mark points at marks on an MRI image of an individual: nasal root and binaural anterior otic points (or other craniofacial landmark points, as well as within the scope of the present patent). And determining a plane (called a dimension reference plane) by three points, calculating the linear distance from the scalp target point to the secondary plane based on the MRI image, and recording the linear distance as the dimension distance.
A third calculation step finds a plane perpendicular to the latitude reference plane on the MRI image, and the plane passes through the pre-binaural point, called the longitude reference plane. The linear distance between the scalp target point and the longitude reference plane is calculated and is recorded as the longitude distance.
And (3) using a craniocerebral longitude and latitude positioning instrument to find the position of a scalp target spot on the scalp of the patient. 1. And positioning the latitude reference plane by using the laser plane of the positioning instrument, and then adjusting the laser plane up or down according to the latitude distance. The scalp position at a specific latitude is located according to the laser projection of the laser plane on the scalp. 2. The longitude plane on the locator is rotated to be projected to the front ear points of both ears at the same time, and then the longitude plane is moved back and forth according to the longitude distance. The scalp position with specific longitude can be positioned according to the laser projection of the laser plane on the scalp. 3. The longitude and latitude plane after moving is the position of the scalp target point at the crossing point on the scalp.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The high-precision intracranial target positioning device based on longitude and latitude concepts comprises a base (1), and is characterized in that universal wheels are rotatably arranged at four corners of the bottom of the base (1) and a main rod (2) is fixedly arranged at the top of the base, the main rod (2) is in a hollow structure, a motor (4) is fixedly arranged at the top of the main rod, an output shaft of the motor (4) extends into the main rod (2) and is fixedly sleeved with a first screw rod (3), a first screw rod guide sleeve (21) is sleeved on the first screw rod (3) in a threaded manner, a connecting block (19) is fixedly arranged on the first screw rod guide sleeve (21), and a rotating shaft (22) is rotatably arranged in the connecting block (19);
the utility model discloses a device for positioning a latitude face, including L type pole (6), pivot (22), worm wheel (23) and one end fixed mounting have been cup jointed in the vertical part of fixed mounting on pivot (22) and pivot (22), rotate on the horizontal part of L type pole (6) and install round bar (13), the bottom fixed mounting of round bar (13) has longitude chi (10) and the fixed gear (15) of cup jointing in top, longitude chi (10) set up and rotate on the both sides inner wall and install same second lead screw (17) for hollow structure, second lead screw (17) go up the screw and cup jointed second lead screw guide sleeve (18), the bottom fixed mounting of second lead screw guide sleeve (18) has longitude reference surface (9), the top of the horizontal part of L type pole (6) is provided with montant (14), threaded rod (12) are installed to the screw thread on montant (14), threaded rod (16) are installed in the rotation of one end of threaded rod (12) and are installed with gear (15), the other end fixed rack (11) that cup joints, longitude reference surface (9) and latitude face (7) inside ware (8) all are equipped with.
2. The high-precision intracranial target positioning device based on the longitude and latitude concept as recited in claim 1, wherein a first sliding groove is formed in the inner wall of one side of the main rod (2) along the vertical part, and a first sliding block fixedly connected with the first screw guide sleeve (21) is slidably mounted in the first sliding groove.
3. The high-precision intracranial target positioning device based on the longitude and latitude concept as recited in claim 1, wherein one side of the connecting block (19) is rotatably provided with a worm (20), the worm (20) is meshed with a worm wheel (23) and one end of the worm is fixedly sleeved with a second rotary table (24).
4. The high-precision intracranial target positioning device based on the longitude and latitude concept as recited in claim 1, wherein one end of the second screw rod (17) extends out of the longitude ruler (10) and is fixedly sleeved with a knob (5).
5. The high-precision intracranial target positioning device based on the longitude and latitude concept as recited in claim 1, wherein a sliding rail is fixedly arranged on the horizontal part of the L-shaped rod (6), and a connecting block fixedly connected with the rack (16) is slidably arranged on the sliding rail.
6. The high-precision intracranial target positioning device based on the longitude and latitude concept as recited in claim 1, wherein a second sliding groove is formed in the top inner wall of the longitude ruler (10) along the horizontal direction, and a second sliding block fixedly connected with a second screw guide sleeve (18) is slidably mounted in the second sliding groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220703336.4U CN219662659U (en) | 2022-03-29 | 2022-03-29 | High-precision intracranial target positioning device based on longitude and latitude concept |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220703336.4U CN219662659U (en) | 2022-03-29 | 2022-03-29 | High-precision intracranial target positioning device based on longitude and latitude concept |
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| CN219662659U true CN219662659U (en) | 2023-09-12 |
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| CN202220703336.4U Active CN219662659U (en) | 2022-03-29 | 2022-03-29 | High-precision intracranial target positioning device based on longitude and latitude concept |
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- 2022-03-29 CN CN202220703336.4U patent/CN219662659U/en active Active
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