Stereotactic arc-shaped bow system with frame
By designing a semicircular arc bow with forward and reverse scales and an improved drag plate guide device, the problems of misreading and difficulty in disinfection during reverse installation of existing stereotactic systems are solved, and convenient operations such as rapid disinfection and large-scale positioning are achieved, thereby improving surgical accuracy and efficiency.
Patent Information
- Application Number
- CN202422086062.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing frame stereotactic system has problems during surgical operations, such as reverse installation that can easily lead to misreading, difficulty in disinfection, inconvenient reading of the dial, the disinfection cloth being clamped and affecting operation, the small gap between the mother ring and the dial that makes lubrication difficult, and lack of locking function, resulting in low surgical accuracy and efficiency.
A semicircular arc bow system was designed with two sets of scales suitable for forward and reverse installation. The drag plate guide device has a depth positioning scale and a guide block. There is a window mark on the slider base, and there are concave and convex blocks on the guide arm to limit the position. The guide block has a porous structure to facilitate rapid disinfection and large-scale positioning.
It simplifies the reverse installation operation, facilitates rapid disinfection and reuse, improves positioning accuracy and range, and enhances the practicality and ease of operation of the system.
Smart Images
Figure CN223416317U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of brain stereotactic orientation, in particular to a framed stereotactic orientation system. Background Art
[0002] The utility model discloses a frame-based stereotactic system, comprising a base ring kit, an arc-shaped arch kit, and an earring kit coupling the base ring and the arc-shaped arch kit. The arc-shaped arch kit comprises a circular arc and a slide guide coupled to the arc-shaped arch. Currently, most frame-based stereotactic products on the market have arcs that are semicircular, typically with a working range of 10-170 degrees or 0-170 degrees, and a working radius of 190 mm or 188 mm. The arches are coupled to the earring kits on both sides to achieve excellent stability. The attached slide provides stable support and precise guidance for surgical instruments, and remains the "gold standard" for precise positioning in clinical neurosurgery.
[0003] In a long period of extensive clinical practice, it has been found that there are at least the following problems with frame-based stereotactic systems:
[0004] (1) When the surgery requires the reverse installation of the arch, the arch inclination angle and the slide plate inclination angle calculated by the surgical planning system software or manually need to be manually converted to the reverse installation reading. Users with unskilled skills are prone to calculation errors. When the path is close to the midline, such errors are difficult to detect.
[0005] (2) The components of the arc bow are too large to be quickly sterilized using the Karl Fischer sterilizer commonly used in hospitals. This means that in hospitals with a larger number of surgeries, if there is only one directional device, it is impossible to perform emergency surgeries continuously.
[0006] (3) The existing dial indicating the inclination angle of the arc bow is usually only set on the right earring. When the lesion is located in the left brain and the patient is in the right side decubitus position, the doctor must bend down or squat to read the scale, which is very likely to violate the principle of sterility and is very inconvenient. Or when the bow frame needs to be installed in reverse due to surgery, the surgical parameters obtained by the stereotactic surgery planning system must be converted into the readings when it is installed in reverse, which requires the doctor to do mental calculations and is prone to mistakes when the doctor lacks experience.
[0007] (4) During surgery, the sterile cloth laid out can easily get caught in the rod between the male and female rings, preventing the bow from rotating freely.
[0008] (5) To ensure positioning accuracy, the clearance between the mother ring and the dial is very small, which makes it difficult to add lubricant and difficult to maintain. After cleaning, it is easy to rotate due to stiffness, which sometimes leads to "false" fixation. During operation, the arc bow may suddenly loosen, causing the puncture needle to form a surface cutting on the brain tissue. In severe cases, it may cause blood vessel rupture or even large-scale brain cutting injuries.
[0009] (6) The coupling between the male and female rings has only a concave and convex block that acts as a limit, and lacks a locking function. When the X-axis coordinate needs to be adjusted during surgery, the arc bow must be disassembled as a whole, which is inconvenient to operate. Utility Model Content
[0010] The purpose of the present utility model is to provide a frame-based stereotactic arc bow system, which is used to solve the technical problems raised by the above-mentioned background technology.
[0011] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0012] A frame-based stereoscopically oriented arc bow system comprises a base ring kit, an arc bow kit, and an earring kit coupling the first two. The arc bow kit consists of a semicircular arc bow and a drag plate guide coupled thereto. The semicircular arc bow is composed of two left and right 1 / 4 arcs spliced together and can be disassembled and folded for placement. The front of the semicircular arc bow has two sets of angle markings ranging from 0 to 180 degrees in opposite directions, and there are corresponding digital markings every 5 degrees. The starting end of the scale is marked with "left" or "right".
[0013] Preferably, the drag plate guide device coupled with the semicircular arc bow is composed of a slider base, a long guide arm, a short guide arm, a fixed knob, etc.; both guide arms have scales indicating the depth of the path, and the center of the scale has a radius value indicating the polar coordinate system it represents.
[0014] Preferably, the window edge of the slider base has two "R" marks in different directions to facilitate the correct reading of the scale on the semicircular arc bow, and its width is sufficient to ensure that when the drag plate guide device slides to any angle, at least one integer scale mark can be seen in the window.
[0015] Preferably, both guide arms are provided with guide blocks for guiding puncture; the upper surface of the guide block has 0-360 scale lines; and there are concave and convex blocks between the guide block and the guide arm to limit the scale lines of the two guide blocks so that the scale lines remain consistent.
[0016] Preferably, the periphery of the central hole of the guide block is provided with small holes of various diameters and spacings, distributed in an equilateral triangle or square pattern.
[0017] Preferably, the guide block is composed of two concentric and mutually embedded cylinders, the outer part of which is embedded in the guide arm with the help of a concave and convex limit block, and its upper surface has a 0-360 scale line, and the inner part can rotate on the outer part with an arrow indicating the rotation angle.
[0018] Preferably, the inner side of the guide block is embedded in the upper and lower blocks of the guide arm, and has an arc-shaped guide through hole. The curvature, aperture and spacing of the two guide through holes are set according to the requirements of annular channels of different specifications.
[0019] Therefore, the utility model has the beneficial effects that:
[0020] The semicircular arc-shaped bow has two sets of scales suitable for forward installation and reverse installation, the two guide arms of the drag plate guiding device are provided with deep and shallow positioning scales, and the guide blocks are provided with an indication angle of path rotation. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0022] Figure 1 The utility model discloses a three -dimensional directional system of having frame in the utility model Figure 1 ;
[0023] Figure 2 The utility model discloses a three -dimensional directional system of having frame in the utility model Figure 2 ;
[0024] Figure 3 The utility model discloses a front view of three -dimensional directional system of having frame in the utility model;
[0025] Figure 4 The utility model discloses the A part enlarged schematic view of Figure 2 ;
[0026] Fig. 100, base ring set;200, arc bow set;210, semicircular arc bow;220, drag plate guiding device;221, sliding block base;222, long guide arm;223, short guide arm;224, fixed knob;225, guide block;226, window;227, puncture;300, ear ring set;301, male ring;302, female ring;400, sliding block. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0028] EMBODIMENT
[0029] like Figures 1-4 As shown, a framed stereotactic system comprises a base ring assembly 100, an arcuate arch assembly 200, and an earring assembly 300 coupling the two. The earring assembly 300 comprises two male rings 301 and two female rings 302, which couple to the arcuate arch assembly 200 and the base ring assembly 100, respectively, thereby determining the three-dimensional coordinates of a target point within the frame. The framed stereotactic system can comprise two sets of earring assemblies 300, each symmetrically arranged in a "pq" pattern. The earrings are divided into a ring portion and a stem portion. The stem portion of the male ring 301 can move longitudinally along the trapezoidal grooves on the slider base 221 to change the Z coordinate of the target point. It can also move forward and backward as the slider base 221 moves along the trapezoidal grooves on the side frame of the base ring assembly 100 to change the Y coordinate of the target point.
[0030] The two mother rings 302 are slidably arranged on the left and right sides of the base ring kit 100 through two sliders 400 respectively; a dial (not shown) is provided on one mother ring 302 or two mother rings 302, and the two mother rings 302 are slidably arranged at both ends of the semicircular arc bow 210, and the line connecting the centers of the two mother rings 302 passes through the center of the semicircular arc bow 210; when in use, the X-axis coordinate of the surgical incision is determined by sliding the two mother rings 302 on the base ring kit 100, and the Y-axis coordinate of the surgical incision is determined by the positions of the semicircular arc bow 210 and the two mother rings 302; the rotation angle of the semicircular arc bow 210 along the two connecting lines determines the pitch angle of the surgical incision, and the puncture 227 slides along the base ring kit 100 to determine the azimuth angle of the surgical incision, and finally the direction of the puncture 227 is the surgical incision position, completing the orientation.
[0031] The semicircular arc bow 210 is composed of two 1 / 4 arcs on the left and right, and can be disassembled and folded for placement; the front of the semicircular arc bow 210 has two sets of angle markings of 0-180 in opposite directions, and there are corresponding digital markings every 5 degrees, and at the starting end of the scale, there is a "left" or "right" mark.
[0032] The carriage guide 220 coupled to the semicircular bow 210 comprises a slider base 221, a long guide arm 222, a short guide arm 223, and a fixed knob 224. Both the long guide arm 222 and the short guide arm 223 have scales indicating the depth of the path, with the center of the scale indicating the radius of the polar coordinate system it represents.
[0033] The edge of the window 226 of the slider base 221 has two "R" marks in different directions to facilitate the correct reading of the scale on the semicircular arc bow 210. The width is sufficient to ensure that when the slider base 221 slides to any angle, at least one integer scale mark can be seen in the window 226.
[0034] Both the long guide arm 222 and the short guide arm 223 are equipped with a guide block 225 for guiding the puncture 227. The upper surface of the guide block 225 is marked with a 0-360 scale. Concave and convex blocks are used to limit the position of the guide block 225 and the guide arms (long guide arm 222 and short guide arm 223), ensuring that the scale lines of the two guide blocks 225 are consistent. Small holes of various diameters and spacings are arranged around the central hole of the guide block 225, arranged in an equilateral triangle or square pattern.
[0035] The guide block 225 consists of two concentric and mutually embedded cylinders. The outer part is embedded in the guide arm with the help of concave and convex limit blocks. There are 0-360 scale lines on its upper surface. The inner part can rotate on the outer part and there is an arrow to indicate the rotation angle.
[0036] The inner side of the guide block 225 is embedded in the upper and lower guide arms (long guide arm 222 and short guide arm 223), and has an arc-shaped guide through hole. The curvature, aperture and spacing of the two guide through holes are set according to the requirements of annular channels of different specifications.
[0037] The semicircular arc bow 210 in this device has two sets of scales suitable for forward installation and reverse installation. The two guide arms of the drag plate guide device 220 are both equipped with depth positioning scales, and the guide block 225 thereon has an indication angle of path rotation. The utility model can simplify the operation of reverse installation of the arc bow, and facilitate rapid disinfection and reuse; it can also obtain a wider range of depth positioning, and is highly practical.
[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A curved arch system with a frame for stereotactic imaging, characterized by: It includes a base ring kit, an arc bow kit and an earring kit that couples the first two. The arc bow kit consists of a semicircular arc bow and a drag plate guide device coupled with it; the semicircular arc bow is composed of two 1 / 4 arcs on the left and right, and can be disassembled and folded for storage; the front of the semicircular arc bow has two sets of 0-180, two sets of angle markings in opposite directions, and there are corresponding digital markings every 5 degrees, with "left" or "right" marked at the starting end of the scale.
2. The frame-based stereotactic arc-shaped arch system according to claim 1, characterized in that: The carriage guide device coupled with the semicircular arc bow is composed of a slider base, a long guide arm, a short guide arm, and a fixed knob; both guide arms are provided with scales indicating the depth of the path, and the center of the scale is marked with the radius value of the polar coordinate system it represents.
3. The frame-based stereotactic arc-shaped arch system according to claim 2, characterized in that: The edge of the window of the slider base has two "R" marks in different directions to facilitate the correct reading of the scale on the semicircular arc. The width is sufficient to ensure that when the slide guide device slides to any angle, at least one integer scale mark can be seen in the window.
4. The frame-based stereotactic arc-shaped arch system according to claim 2, wherein: The two guide arms are both provided with guide blocks for guiding puncture; the upper surface of the guide blocks has 0-360 scale lines; there is a concave and convex block limiter between the guide blocks and the guide arms, so that the scale lines of the two guide blocks remain consistent.
5. The frame-based stereotactic arc-shaped arch system according to claim 4, characterized in that: Around the central hole of the guide block, there are small holes with various diameters and intervals distributed in an equilateral triangle or a square.
6. The frame-based stereotactic arc-shaped arch system according to claim 4, characterized in that: The guide block consists of two concentric and mutually embedded cylinders. The outer part is embedded in the guide arm with the help of a concave and convex limit block. There are 0-360 scale lines on its upper surface. The inner part can rotate on the outer part and there is an arrow to indicate the rotation angle.
7. The frame-based stereotactic arc-shaped arch system according to claim 4, characterized in that: The inner side of the guide block is embedded in the upper and lower blocks of the guide arm and has an arc-shaped guide through hole. The curvature, aperture and spacing of the two guide through holes are set according to the requirements of annular channels of different specifications.