Brain line drawing device
By using a brain drawing device with a malleable fixation ring and a cross-guide segment, the problems of long operation time and inaccurate positioning in traditional brain localization methods have been solved, achieving rapid and accurate brain localization and drawing, and improving the efficiency of neurosurgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional brain localization methods in neurosurgery suffer from problems such as long operation time and inaccurate localization, especially in emergency situations where changes in patient position and deviations in the surgeon's perspective can cause line deviations, affecting surgical preparation time and outcomes.
The brain drawing device, which employs a plastic fixing ring and cross-shaped guide segments, adjusts the direction of the lines by sliding a slider in a limiting groove. Combined with the sliding friction of the plastic guide segments and the slider, it achieves rapid and accurate brain localization and drawing operations.
It enables rapid and accurate brain localization and mapping, reducing surgical preparation time and improving surgical efficiency and accuracy.
Smart Images
Figure CN224070592U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of medical devices, and in particular relates to a brain drawing device. Background Technology
[0002] Ventricular paracentesis or external drainage is a common neurosurgical procedure in which a drainage tube is placed inside the ventricle after ventricular puncture through a burr hole in the skull or during open surgery to drain the fluid accumulated inside the ventricle. It is primarily used to treat intraventricular hemorrhage, hydrocephalus, and other intracranial diseases, especially acute obstructive hydrocephalus, intracerebral hemorrhage rupture into the ventricle, and other neurosurgical emergencies. It plays an indispensable role in relieving brain herniation, draining blood, and reducing intracranial pressure.
[0003] In the treatment of acute and critical neurosurgical conditions, brain puncture surgery often needs to be performed under emergency circumstances. Because patients are often in critical states such as impaired consciousness and progressively worsening intracranial hypertension, the timeliness of surgical preparation directly affects the prognosis. Traditional positioning methods, using a soft ruler in conjunction with surface landmarks for manual marking, have significant technical drawbacks: First, anatomical markers such as the hairline and the upper edge of the auricle must be repeatedly calibrated to establish a baseline; then, a second vertical marking is performed, during which the measuring instrument must be kept in close contact with the curved surface of the skull, and the two positioning lines must be strictly orthogonal. In practice, changes in patient position and deviations in the surgeon's perspective often cause the marking to deviate, requiring an average of 2-3 repetitions for correction, significantly prolonging preoperative preparation time.
[0004] In view of this, the inventor of this case conducted in-depth research, which led to the creation of this case. Utility Model Content
[0005] The purpose of this invention is to provide a brain drawing device that can draw lines quickly and accurately.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A brain drawing device includes a fixing ring and a slider assembly. The fixing ring has a limiting groove arranged along the circumferential direction. The slider assembly consists of two sets: a first slider assembly and a second slider assembly. The first slider assembly includes a first slider and a second slider, and a first guide section connecting the first slider and the second slider. The second slider assembly includes a third slider and a fourth slider, and a second guide section connecting the third slider and the fourth slider. The first guide section and the second guide section are arranged opposite to each other and intersecting each other. The first slider, the second slider, the third slider, and the fourth slider are respectively installed in the limiting groove.
[0008] The fixing ring is a malleable fixing ring that can be reshaped to fit the scalp during use, and both the first guide section and the second guide section are malleable guide sections.
[0009] Furthermore, the fixing ring is a square ring, including a set of first side and second side arranged opposite to each other, and another set of third side and fourth side arranged opposite to each other. The first slider is installed on the first side, the second slider is installed on the second side, the third slider is installed on the third side, and the fourth slider is installed on the fourth side. The first guide segment and the second guide segment are arranged perpendicularly to each other.
[0010] Furthermore, the first slider includes an operating part, a guide part, and a limiting part connected sequentially from top to bottom. The limiting part is correspondingly installed in the limiting groove, and the shape and size of the guide part match the opening of the limiting groove. The second slider, the third slider, and the fourth slider have the same structure as the first slider.
[0011] Furthermore, the groove opening of the limiting groove is narrowed, and the groove opening end of the limiting groove is located between the limiting part and the operating part.
[0012] Furthermore, the guide part is a guide bar, which is in the shape of a bar, the groove wall of the limiting groove is concave arc-shaped, forming a concave arc surface, the contact surface between the limiting part and the limiting groove is a convex arc surface, the convex arc surface is adapted to the concave arc surface, and the size of the limiting part is smaller than the size of the limiting groove.
[0013] Furthermore, the first slider is I-shaped, the width of the limiting part is greater than the width of the opening of the limiting groove, the width of the operating part is greater than the width of the opening of the limiting groove; the length of the guide strip is greater than the thickness of the opening end of the limiting groove; a stepped surface is formed between the operating part and the top of the guide strip, the stepped surface abuts against the top surface of the opening end of the limiting groove, the distance between the stepped surface of the slider and the bottom of the first slider is the same as the groove depth from the top surface of the opening end of the limiting groove to the bottom of the groove, and sliding friction is formed between the convex arc surface and the concave arc surface.
[0014] Furthermore, the first guide segment includes two parallel guide wires, with a spacing between the two guide wires matching the diameter of the brush. The structure of the second guide segment is the same as that of the first guide segment.
[0015] Furthermore, the malleable retaining ring is a PEEK polyetheretherketone or an ultra-high molecular weight polyethylene retaining ring;
[0016] Furthermore, the malleable guide segment is a metal wire guide segment wrapped with a silicone sleeve; the malleable guide segment is a carbon fiber guide segment; or the malleable guide segment is glass fiber.
[0017] Furthermore, the slider is a rubber slider.
[0018] After adopting the above technical solution, the brain drawing device of this utility model has the following beneficial effects: In use, the malleable fixing ring can be attached to the patient's head, and the slider can slide in the limiting groove to change the direction of the line. The sliding position of the slider can be adjusted according to actual needs, and then the brain drawing operation is performed along the guide section. The brain drawing device of this utility model can achieve rapid and accurate brain positioning and drawing operations.
[0019] Furthermore, when drawing lines, the pen can be positioned between two guide wires to perform the drawing operation. The two guide wires guide and limit the pen. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the midbrain drawing device of this utility model;
[0021] Figure 2 This is a schematic diagram showing the cooperation relationship between the slider and the fixed ring in this utility model (slider in the down position).
[0022] Figure 3 This is a schematic diagram showing the cooperation relationship between the slider and the fixed ring in this utility model (slider pulled up).
[0023] Figure 4 This is a schematic diagram of the usage state of this utility model;
[0024] Figure 5 This is a schematic diagram of another usage state of this utility model.
[0025] In the picture:
[0026] Fixing ring 1; First side 11;
[0027] Second side 12; Third side 13;
[0028] Fourth side 14; limiting groove 2;
[0029] First slider 31; Operation unit 311;
[0030] Guide part 312; Limiting part 313;
[0031] Convex surface 314; Stepped surface 315;
[0032] Second slider 32; First guide section 33;
[0033] Guide wire 331; Spacing a;
[0034] Third slider 34; Fourth slider 35;
[0035] Second guide section 36. Detailed Implementation
[0036] This utility model relates to a brain-drawing device, such as... Figures 1-5 As shown, the device includes a fixing ring 1 and a slider assembly. The fixing ring 1 has a limiting groove 2 arranged along the circumferential direction. There are two slider assemblies, namely a first slider assembly and a second slider assembly. The first slider assembly includes a first slider 31 and a second slider 32, and a first guide section 33 connecting the first slider 31 and the second slider 32. The second slider assembly includes a third slider 34 and a fourth slider 35, and a second guide section 36 connecting the third slider 34 and the fourth slider 35. The first guide section 33 and the second guide section 36 are arranged opposite to each other. The first slider 31, the second slider 32, the third slider 34 and the fourth slider 35 are respectively installed in the limiting groove 2.
[0037] The retaining ring 1 is a malleable retaining ring that can be reshaped to fit the scalp during use. The first guide section 33 and the second guide section 36 are both malleable guide sections.
[0038] This invention relates to a brain drawing device. In use, a malleable fixing ring is attached to the patient's head, and a slider slides within a limiting groove 2 to change the direction of the lines. The slider's sliding position can be adjusted according to actual needs, and then brain drawing is performed along a guide section. This brain drawing device enables rapid and accurate brain localization and drawing operations.
[0039] Specifically, the fixing ring 1 is a square ring, including a set of oppositely arranged first side 11 and second side 12, and another set of oppositely arranged third side 13 and fourth side 14. A first slider 31 is installed on the first side 11, a second slider 32 on the second side 12, a third slider 34 on the third side 13, and a fourth slider 35 on the fourth side 14. A first guide section 33 and a second guide section 36 are arranged perpendicularly. The first guide section 33 includes two parallel guide wires 331, with a spacing 'a' between them matching the pen diameter. The structure of the second guide section 36 is the same as that of the first guide section 33. When drawing lines, the pen can be confined between the two wires for drawing. The two guide wires guide and limit the pen.
[0040] Furthermore, the first slider 31 includes an operation part 311, a guide part 312 and a limiting part 313 connected sequentially from top to bottom. The limiting part 313 is correspondingly installed in the limiting groove 2, and the shape and size of the guide part 312 match the opening of the limiting groove 2.
[0041] The groove opening of the limiting groove 2 is narrowed, and the end of the groove opening of the limiting groove 2 is limited between the limiting part 313 and the operating part 311.
[0042] The guide part 312 is a guide bar in the shape of a bar. The groove wall of the limiting groove 2 is concave arc-shaped, forming a concave arc surface 21. The contact surface between the limiting part 313 and the limiting groove 2 is a convex arc surface 314. The convex arc surface 314 is adapted to the concave arc surface 21. The size of the limiting part 313 is smaller than the size of the limiting groove 2.
[0043] The first slider 31 is I-shaped. The width of the limiting part 313 is greater than the width of the opening of the limiting groove 2, and the width of the operating part 311 is greater than the width of the opening of the limiting groove 2. The length of the guide strip is greater than the thickness of the opening end of the limiting groove 2. A stepped surface 315 is formed between the operating part 311 and the top of the guide strip. The stepped surface 315 abuts against the top surface of the opening end of the limiting groove 2. The distance between the stepped surface 315 of the slider and the bottom of the slider is the same as the groove depth from the top surface of the opening end of the limiting groove 2 to the bottom of the groove. Sliding friction can be formed between the convex arc surface 314 and the concave arc surface 21. In this way, the slider can be positioned in the limiting groove.
[0044] Thus, as Figure 3 As shown, when the first slider 31 needs to be slid, the convex arc surface 314 can be moved to separate from the concave arc surface 21 by pulling up the operating part 311, so that the slider can slide within the limiting groove 2. Figure 2 As shown, after sliding to the expected position, the slider can be pressed down until the convex arc surface 314 contacts the concave arc surface 314, forming sliding friction. In this way, the first slider 31 is positioned in the limiting groove 2.
[0045] It should be noted that the fixing ring 1 of this utility model can also be a circular track, etc. The first guide section 33 and the second guide section 36 can be used vertically or in a non-vertical state, and can be adjusted according to actual needs.
[0046] This invention relates to a brain marking device, which can also be used in conjunction with a brain puncture correction system. The accompanying software projects two vertical lines onto the human body at the puncture point (the intersection of two perpendicular laser beams). After these lines are drawn on the surface, a physical correction device (emitting a cross-shaped laser beam) is used to ensure the lines are perpendicular to the brain. The pre-operative software determines the desired line positions on the patient's brain. Two perpendicular laser beams are projected onto the brain surface, and based on these lines, three points define a straight line and a plane (two laser beams, six points). The device then uses a sliding slider to fix the position based on the laser beams and points, ensuring the two guide segments align with the laser beams. Because the device is square, and the track is aligned with the laser lines for calibration, the two guide segments within the device remain perpendicular at all times.
[0047] Furthermore, in this invention, the malleable retaining ring can be a PEEK (polyether ether ketone) or ultra-high molecular weight polyethylene (UHMWPE) retaining ring, as long as it can achieve the corresponding function. The slider can be a rubber slider, preferably made of a material with high friction.
[0048] The malleable guide section is a metal wire guide section, which is wrapped with a silicone sleeve; or the malleable guide section is a carbon fiber guide section / glass fiber guide section.
[0049] The above embodiments and accompanying drawings are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. A brain sketching device, characterized by: The fixed ring is provided with a limiting groove arranged along the ring, and the slider set includes two sets of first and second slider sets, the first slider set includes a first slider and a second slider, and a first guide section is connected between the first and second sliders, the second slider set includes a third slider and a fourth slider, and a second guide section is connected between the third and fourth sliders, the first and second guide sections are arranged in opposite directions, and the first, second, third and fourth sliders are respectively installed in the limiting groove. The fixed ring is a plastic fixed ring that can change its shape to fit the scalp during use, and the first and second guide sections are plastic guide sections.
2. A brain drawing device as claimed in claim 1, characterized in that: The fixed ring is a square ring including a first side edge and a second side edge arranged oppositely, and a third side edge and a fourth side edge arranged oppositely, the first slider is installed on the first side edge, the second slider is installed on the second side edge, the third slider is installed on the third side edge, and the fourth slider is installed on the fourth side edge, and the first and second guide sections are arranged perpendicularly.
3. The brain drawing device of claim 1, wherein: The first slider includes an operation part, a guide part and a limiting part connected in sequence from top to bottom, the limiting part is installed in the limiting groove, and the guide part matches the shape and size of the slot of the limiting groove, and the second, third and fourth sliders are the same as the first slider.
4. A brain drawing device as claimed in claim 3, characterized in that: The slot of the limiting groove is reduced in diameter, and the end of the slot of the limiting groove is limited between the limiting part and the operation part.
5. A brain drawing device as claimed in claim 4, characterized in that: The guide part is a guide strip in the shape of a bar, the slot wall of the limiting groove is in the shape of a concave arc to form a concave surface, the contact surface between the limiting part and the limiting groove is a convex surface, the convex surface matches the concave surface, and the size of the limiting part is smaller than that of the limiting groove.
6. A brain drawing device as claimed in claim 5, characterized in that: The first slider is in the shape of an I-beam, the width of the limiting part is greater than the width of the slot of the limiting groove, and the width of the operation part is greater than the width of the slot of the limiting groove, the length of the guide strip is greater than the thickness of the end of the slot of the limiting groove, a stepped surface is formed between the operation part and the top end of the guide strip, the stepped surface abuts against the top surface of the end of the slot of the limiting groove, the distance between the stepped surface of the slider and the bottom end of the first slider is the same as the depth of the slot of the limiting groove, and the sliding friction is formed between the convex surface and the concave surface.
7. A brain drawing device as claimed in claim 2, wherein: The first guide section includes two parallel guide wires, and the distance between the two guide wires matches the diameter of the brush, and the second guide section has the same structure as the first guide section.
8. A brain drawing device according to any one of claims 1 to 7, wherein: The plastic fixed ring is made of PEEK (polyether ether ketone) or ultra-high molecular weight polyethylene.
9. A brain drawing device according to any one of claims 1 to 7, wherein: The plastic guide section is a metal wire guide section wrapped with a silica gel sleeve, a carbon fiber guide section or a glass fiber.
10. A brain drawing device according to any one of claims 1 to 7, wherein: The slider is a rubber slider.