Multi-dimensional adjustable device for neuroendoscope fixation

Abstract

The present application relates to the technical field of minimally invasive medical auxiliary instruments, and discloses a multi-dimensional adjustable device for neuroendoscope fixation, which aims to solve the problem that fine adjustment is difficult to realize after the endoscope is fixed in the existing neuroendoscope surgery. The present application comprises a translation adjustment mechanism, a swing angle adjustment mechanism arranged on the front side of the translation adjustment mechanism, and an adapter arranged at the lower end. The translation adjustment mechanism comprises a first translation mechanism, a second translation mechanism and a third translation mechanism, which can realize fine adjustment of the up-down, left-right and front-back positions of the neuroendoscope. The swing angle adjustment mechanism comprises a first swing angle adjustment mechanism, a second swing angle adjustment mechanism and a locking dial group, which can realize adjustment of the inclination angle of the neuroendoscope in the horizontal and vertical planes, and active locking and unlocking of the second swing angle adjustment mechanism, so that the surgeon can better and faster adjust the image area of the operation area in the surgery, improve the fineness of the operation and improve the efficiency of the surgery.

Description

Technical Field

[0001] This invention relates to the field of minimally invasive medical auxiliary device technology, and in particular to a multidimensional adjustable device for fixation of neuroendoscopy. Background Technology

[0002] Neuroendoscopic surgery requires extremely delicate surgical techniques. Therefore, the endoscope needs to be fixed during the procedure to provide a stable image of the surgical area and guide the instruments for precise manipulation.

[0003] Neuroendoscopic surgery requires extremely high safety in instrument operation; therefore, the devices used to fix the neuroendoscope include support arms and endoscope mounting devices.

[0004] Neuroendoscopic surgery requires fine adjustments to the endoscope position and the surgical area image during the procedure. This can be achieved by adjusting the overall posture of the support arm or the position of its tip. However, such adjustments require loosening and tightening the locking mechanism of the support arm, which is overly cumbersome. Furthermore, due to the large reach of the support arm, even slight adjustments can lead to significant changes in the position of the endoscope tip. Since neuroendoscopic surgery is often performed in limited spaces and within the lesion area, such significant changes in the endoscope position can cause it to deviate from the surgical area. Therefore, multiple adjustments are necessary to ensure the correct endoscope position, which is obviously extremely inconvenient and affects surgical efficiency. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention is implemented according to the following technical solution:

[0006] A multidimensional adjustable device for fixing a neuroendoscopy includes a translation adjustment mechanism 1, a swing angle adjustment mechanism 2 is provided on the front side of the translation adjustment mechanism 1, and an adapter 3 for fixing the neuroendoscopy is provided at the lower end of the swing angle adjustment mechanism 2 away from the translation adjustment mechanism 1.

[0007] Its features

[0008] The translation adjustment mechanism 1 includes a first translation mechanism 11, a second translation mechanism 12, a third translation mechanism 13, and a connecting block 14 arranged sequentially from top to bottom. The translation axis of the first translation mechanism 11 is set in a vertical plane, the translation axis of the second translation mechanism 12 is set in a horizontal plane perpendicular to the translation axis of the first translation mechanism 11, and the translation axis of the third translation mechanism 13 is set in a plane below the horizontal plane where the translation axis of the second translation mechanism 12 is located and is perpendicular to the translation axes of the first translation mechanism 11 and the second translation mechanism 12. The connecting block 14 is L-shaped, with its left side connected to the first translation mechanism 11 and its bottom connected to the second translation mechanism 12.

[0009] The first translation mechanism 11 includes a first housing 111 and a first translation component 112 disposed therein. The first translation component 112 includes a slider 1121, a guide rail assembly 1122, a translation stud 1123, a translation nut 1124, and a translation nut 1125. The slider 1121 is slidably fitted onto the guide rail assembly 1122. The guide rail assembly 1122 is composed of two cylindrical guide rails of equal diameter, and its axis is parallel to the axis of the translation stud 1123. Coplanar, the axis of translation stud 1123 is set in the symmetrical center plane of guide rail assembly 1122, translation nut 1124 is a right-hand nut that is threaded onto the large-diameter end of translation stud 1123 and onto right-hand stud 1126 and fixed in the stepped hole on the side of the first housing 131, and translation nut 1125 is a left-hand nut that is threaded onto the small-diameter end of translation stud 1123 and onto left-hand stud 1127 and fixed in the stepped hole on the side of slider 1121;

[0010] The second translation mechanism 12 includes a second housing 121 and a first translation component 112 disposed therein;

[0011] The first translation mechanism 11 and the second translation mechanism 12 rotate the translation stud 1123 to move it axially, and at the same time drive the translation nut 1125 to move in the same direction along the axis of the translation stud 1123. Then, the translation stud 1123 and the translation nut 1125 jointly push the slider 1121 to move axially along the guide rail assembly 1122. The first housing 111 is provided with an active range 1111 for the slider 1121 to move, and the second housing 121 is provided with an active range 2 1211 for the slider 1121 to move.

[0012] The third translation mechanism 13 includes a third housing 131 and a second translation component 132 disposed inside its narrow end. The wide end of the third housing 131 is provided with a cavity 133. The second translation component 132 has a similar structure to the first translation component 112. One difference is that the guide rail assembly 1321 included in the second translation component 132 is longer than the guide rail assembly 1122. Another difference is that the large-diameter end of the translation stud 1322 included in the second translation component 132 is a right-handed stud. The length of 1323 is longer than that of the right-hand stud 1126, and the length of the left-hand stud 1324 at the small diameter end is longer than that of the left-hand stud 1127. The translation nut 1124 is threaded onto the translation stud 1322 and onto the right-hand stud 1323 at the large diameter end, and is fixed in the stepped hole on the narrow side of the third housing 131. The translation nut 1125 is threaded onto the translation stud 1322 and onto the left-hand stud 1324 at the small diameter end, and is fixed in the stepped hole on the side of the slider 1121.

[0013] The third translation mechanism 13 rotates the translation stud 1322 to move it axially, and at the same time drives the translation nut 1125 to move in the same direction as the translation stud 1322. Then, the translation stud 1322 and the translation nut 1125 jointly push the slider 1121 to move axially along the guide rail assembly 1321. The narrow end of the third housing 131 is provided with an active range 3 1311 for the slider 1121 to move.

[0014] The swing angle adjustment mechanism 2 includes a first swing angle adjustment mechanism 21, a second swing angle adjustment mechanism 22, and a locking dial group 23 arranged sequentially from top to bottom. The first swing angle adjustment mechanism 21 is arranged horizontally, the second swing angle adjustment mechanism 22 is arranged vertically, and the locking dial group 23 is arranged on the second swing angle adjustment mechanism 22.

[0015] The first tilt adjustment mechanism 21 includes a fourth housing 211, a first gear assembly 212, a rack 213, and a guide rail assembly 214. The wide end of the fourth housing 211 is an arc-shaped surface 2111, and grooves 2112, 2113, and 2114 are arranged sequentially from top to bottom. The first gear assembly 212 is located on one side of the arc-shaped surface 2111 and includes a cam 2121, a bushing assembly 2122, a gear 2123, and a bushing. The components are: cam 2124, compression spring 2125, rotating shaft 2126, threaded pin 2127, and bushing 2128. Cam 2121, bushing assembly 2122, gear 2123, bushing 2124, and compression spring 2125 are sequentially mounted on the rotating shaft 2126 from top to bottom. Threaded pin 2127 is located inside the inner hole of bushing 2124 and is threaded to the lower end of the rotating shaft 2126. The large-diameter thread of bushing assembly 2122 is left-handed. The bushing 2128 is threaded onto the large-diameter end of the bushing assembly 2122. The rack 213 is an arc-shaped rack, set in the groove 2113, with the same tooth height as the gear 2123 and meshing with it. Rotating the cam 2121 drives the gear assembly 212 to roll along the rack 213. The guide rail assembly 214 includes an arc-shaped guide rail 2141, an arc-shaped guide rail 2142, an arc-shaped guide rail 2143, and an arc-shaped guide rail 2144. The first arc-shaped guide rail 2141 and the third arc-shaped guide rail 2143 have the same specifications and are symmetrically arranged with respect to the first rack 213. The second arc-shaped guide rail 2142 and the fourth arc-shaped guide rail 2144 have the same specifications and are symmetrically arranged with respect to the first rack 213. The first arc-shaped guide rail 2141 and the second arc-shaped guide rail 2142 are coplanarly installed in the first groove 2112 with their arc centers coinciding. The third arc-shaped guide rail 2143 and the fourth arc-shaped guide rail 2144 are coplanarly installed in the third groove 2114 with their arc centers coinciding.

[0016] The second swing angle adjustment mechanism 22 includes a fifth housing 221, a slider group 222, a second gear assembly 223, a rack 224, and a guide rail group 4 225. The fifth housing 221 includes cavities 2211, 3212, 4213, 5214, mounting hole group 1 2215, mounting hole group 2216, mounting hole group 3 2217, and mounting hole group 4 2218. Cavity 2211 is located at the top and penetrates the fifth housing 221 from left to right. Cavity 3212 is located at the top and penetrates the fifth housing 221 from front to back, communicating with cavity 2211. Cavity 4213 is located at the bottom and penetrates the fifth housing 221 from left to right. Cavity 5214 is located at the bottom right side and penetrates from top to bottom. The fifth housing 221 is penetrated and communicates with cavity four 2213. Mounting hole group one 2215 is located on the top left side of the fifth housing 221, penetrating cavity two 2211 from top to bottom. Mounting hole group two 2216 is located on the bottom left side of the fifth housing 221, penetrating cavity four 2213 from front to back. Mounting hole group three 2217 and mounting hole group four 2218 are located on the bottom right side of the fifth housing 221, penetrating cavity five 2214 from front to back. The slider group 222 includes two arc-shaped sliders 2221 symmetrically arranged on the upper and lower sides of cavity three 2212. The arc-shaped sliders 2221 have a Y-shaped cross-section with their narrow ends facing the interior of cavity three 2212. The second gear assembly 223 includes cam two 2231, bushing assembly one 2122, gear 2123, and rotating shaft. 2126, bushing assembly two 2232, cam three 2233, bushing two 2128, bushing three 2234, wherein bushing assembly two 2232 has a right-hand thread on its large diameter end. Cam two 2231, bushing assembly one 2122, gear 2123, bushing assembly two 2232, and cam three 2233 are sequentially fitted onto the rotating shaft 2126 from front to back. Bushing assembly two 2232 has a right-hand thread on its large diameter end. Bushing two 2128 is threaded onto the large diameter end of bushing assembly one 2122 and is tightly fitted against cam two 2231. Bushing three 2234 is threaded onto the large diameter end of bushing assembly two 2232 and is tightly fitted against cam three 2233. Cam two 2231 and cam three 2233 are connected to the rotating shaft 2126 by screws. The small-diameter ends of bushing assembly 1 (2122) and bushing assembly 2 (2232) are threaded into mounting hole group 2 (2216). Gear 2123 is disposed in cavity 4 (2213). Rack 2 (224) is disposed in cavity 5 (2214) and meshes with gear 2123. It is provided with an arc-shaped groove 2241. Mounting hole group 3 (2217) and mounting hole group 4 (2218) penetrate the arc-shaped groove 2241. Guide rail group 4 (225) includes arc-shaped guide rail group 2251, positioning component 1 (2252), and positioning component 2 (2253). The arc-shaped guide rail group 2251 has an I-shaped cross-section and is composed of a pair of arc-shaped guide rails 5 (2254) symmetrically spliced ​​together. The arc-shaped guide rails 5 (2254) have a T-shaped cross-section and are provided with positioning hole 1 (2255) and positioning hole 2 (2256) at both ends.Positioning component 1 2252 and positioning component 2253 are composed of threaded pin 2257 and nut 2258 connected by threads. Positioning component 1 2252 has its small-diameter end fitted into positioning holes 1 2255 and 2256, and its large-diameter end fitted into mounting hole group 3 2217 and mounting hole group 4 2218. Positioning component 2253 has its small-diameter end fitted into positioning holes 1 2255 and 2256, and its large-diameter end fitted into mounting hole group 3 2217 and mounting hole group 4 2218. The arc-shaped guide rail group 2251 is located within cavity 5 2214, and its narrow end is fitted into arc-shaped groove 2241. The arc length of arc groove 2241 is greater than the arc length of the narrow end of arc-shaped guide rail group 2251. Rotating the second gear assembly 223 drives rack 224 to slide up and down along the arc-shaped guide rail group 2251 on guide rail group 4 225.

[0017] The locking dial assembly 23 includes a locking dial 1 231 and a locking dial 232. The locking dial 1 231 is mounted on and fixed to the bushing 2128 with screws, and the locking dial 232 is mounted on and fixed to the bushing 3 2234 with screws.

[0018] The adapter 3 is fixed to the thin end of the rack 224 by screws. The shaft hole 31 is used to fit the endoscope shaft. The axis A of the shaft hole 31 is located below the arc center of the arc guide rail 2141 in the vertical plane and passes through the rotation center of the arc rack 224.

[0019] The endoscope mounted on the adapter 3 can adjust the vertical position of its shaft by rotating the first translation screw 1123 on the first translation mechanism 1, the horizontal position of its shaft by rotating the second translation screw 1123 on the second translation mechanism 12, the front-rear position of its shaft by rotating the second translation screw 1322 on the third translation mechanism 13, and the horizontal angle α of its shaft around a point in front by rotating the cam 2121 on the swing angle adjustment mechanism 2. The adjustment range of the swing angle α is ±10°. The vertical angle β of its shaft around a point in front is adjusted by rotating the cam 2231 or the cam 2233 on the swing angle adjustment mechanism 2, or by rotating both of them simultaneously. The adjustment range of the swing angle β is ±10°.

[0020] Furthermore, the cylindrical guide rails constituting guide rail assembly 1122 and guide rail assembly 1321 are of equal diameter;

[0021] Furthermore, the first activity interval 1111 and the second activity interval 1211 are the same size, and the third activity interval 1311 is larger than the first activity interval 1111 and the second activity interval 1211.

[0022] Furthermore, the thread diameter and thread pitch of the right-hand threaded stud 1126 on the translation stud 1123 are greater than those of the left-hand threaded stud 1127, and the thread diameter and thread pitch of the right-hand threaded stud 1323 on the translation stud 1322 are greater than those of the left-hand threaded stud 1324.

[0023] Furthermore, the radii of the inner arc surfaces of the arc-shaped guide rail 1 2141 and the arc-shaped guide rail 3 2143 are consistent with the radius of the outer arc surface of the narrow end of the arc-shaped slider 2221, and the radii of the outer arc surfaces of the arc-shaped guide rail 2 2142 and the arc-shaped guide rail 4 2144 are consistent with the radius of the inner arc surface of the narrow end of the arc-shaped slider 2221.

[0024] Furthermore, the guide groove between the first arc-shaped guide rail 2141 and the second arc-shaped guide rail 2142 has a Y-shaped cross section, and the guide groove between the third arc-shaped guide rail 2143 and the fourth arc-shaped guide rail 2144 has an inverted Y-shaped cross section.

[0025] A method for locking and unlocking the multidimensional adjustable device for neuroendoscopic fixation includes three locking and unlocking methods;

[0026] Its features

[0027] Method 1 involves rotating the locking dial 231 clockwise from front to back, which in turn drives the bushing 2128 to rotate clockwise. The left-hand thread at the large diameter end of the bushing assembly 2122 pushes the bushing 2128 towards the cam 2231, which in turn pushes the cam 2231, the rotating shaft 2126, and the cam 3233 to move in the same direction until the end faces of the bushing 2128 and the locking dial 231 are pressed against the end face of the cam 2231, and the end faces of the bushing 3234 and the locking dial 232 are pressed against the end face of the cam 3233 to achieve locking. Conversely, rotating the locking dial 231 counterclockwise from front to back can unlock the device.

[0028] Method 2 involves rotating the locking dial 232 clockwise from front to back, which in turn drives the bushing 2234 to rotate clockwise. The right-hand thread at the large diameter end of the bushing assembly 2232 pushes the bushing 2234 to move towards the cam 2233, which in turn pushes the cam 2231, the rotating shaft 2126, and the cam 2233 to move in the same direction until the end faces of the bushing 2234 and the locking dial 232 are pressed against the end face of the cam 2233, and the end faces of the bushing 2128 and the locking dial 1 231 are pressed against the end face of the cam 2231 to achieve locking. Conversely, rotating the locking dial 232 counterclockwise from front to back can unlock the device.

[0029] Method 3 involves simultaneously rotating locking dial 1 231 and locking dial 232 clockwise to achieve locking, similar to methods 1 and 2. Conversely, unlocking can be achieved by rotating locking dial 1 231 or locking dial 232 counterclockwise individually, or by rotating locking dial 1 231 and locking dial 232 counterclockwise simultaneously.

[0030] The positive and progressive effects of this invention are as follows:

[0031] This invention discloses a multidimensional adjustable device for fixing a neuroendoscope. This device is designed to fix the neuroendoscope and adjust its position and orientation in real time during neuroendoscopic surgery. While fixing the neuroendoscope, the translation adjustment mechanism allows for precise adjustment of the position of the neuroendoscope insertion tip in six directions: up / down, left / right, and forward / backward. Simultaneously, the pitch angle adjustment mechanism allows for adjustment of the tilt angle of the neuroendoscope insertion tip relative to its tip in both horizontal and vertical planes. A locking dial group allows for the locking and unlocking of the second swing angle adjustment mechanism at any time, enabling surgeons to better and faster select and adjust the surgical area image during surgery, improving the precision of the surgical operation and increasing surgical efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a multidimensional adjustable device for fixing a neuroendoscope according to the present invention;

[0033] Figure 2 This is a schematic diagram of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0034] Figure 3 This is a schematic diagram of the translation adjustment mechanism included in a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0035] Figure 4 This is a schematic diagram of the first translation mechanism included in the translation adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0036] Figure 5 This is a schematic diagram of the first translation mechanism component and the first translation assembly of a translation adjustment mechanism in a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0037] Figure 6 This is a schematic diagram of the translation stud, a first translation component of the translation adjustment mechanism in a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0038] Figure 7 This is a schematic diagram of the second translation mechanism included in the translation adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0039] Figure 8 This is a schematic diagram of the third translation mechanism included in the translation adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0040] Figure 9This is a schematic diagram of the second translation component, which is a third translation mechanism part of a translation adjustment mechanism in a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0041] Figure 10 This is a schematic diagram of the second translation component, the translation stud, in the translation adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscope according to the present invention.

[0042] Figure 11 This is a schematic diagram of the swing angle adjustment mechanism included in a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0043] Figure 12 This is a schematic diagram of the first swing angle adjustment mechanism included in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0044] Figure 13 This is a schematic diagram of the fourth housing of the first swing angle adjustment mechanism component included in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0045] Figure 14 This is a schematic diagram of the first gear assembly of the first swing angle adjustment mechanism component in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0046] Figure 15 This is a three-section schematic diagram of the guide rail assembly of the first swing angle adjustment mechanism component in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0047] Figure 16 This is a schematic diagram of the second swing angle adjustment mechanism included in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0048] Figure 17 This is a schematic diagram of the fifth housing of the second swing angle adjustment mechanism component included in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0049] Figure 18 This is a schematic diagram of the arc-shaped slider component of the second swing angle adjustment mechanism of the upper swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0050] Figure 19 This is a schematic diagram of the second gear assembly of the second swing angle adjustment mechanism component in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0051] Figure 20This is a schematic diagram of the guide rail assembly of the second swing angle adjustment mechanism component in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0052] Figure 21 This is a schematic diagram of the arc-shaped guide rail of the second swing angle adjustment mechanism component guide rail assembly, which is part of the swing angle adjustment mechanism of the multidimensional adjustable device for fixing neuroendoscopy according to the present invention.

[0053] Figure 22 This is a schematic diagram of the rack and pinion component 2 of the second swing angle adjustment mechanism in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0054] Figure 23 This is a schematic diagram showing the position of the locking dial group in the swing angle adjustment mechanism of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention.

[0055] Figure 24 This is a top view of the adapter axis position of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0056] Figure 25 This is a front view of the adapter axis position of a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0057] Figure 26 This is a schematic diagram of the swing angle α adjustment range of the swing angle adjustment mechanism on a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention;

[0058] Figure 27 This is a schematic diagram of the swing angle β adjustment range of the swing angle adjustment mechanism on a multidimensional adjustable device for fixing a neuroendoscopy according to the present invention; Detailed Implementation

[0059] To better understand the technical solution of the present invention, it will now be described in detail with reference to specific implementation methods and working principles: Example 1

[0060] This embodiment has the same structure as the technical solution. In this embodiment, the locking dial 231 is rotated clockwise from front to back, which drives the bushing 2128 to rotate clockwise. The left-hand thread at the large diameter end of the bushing assembly 2122 pushes the bushing 2128 to move towards the cam 2231, which in turn pushes the cam 2231, the rotating shaft 2126, and the cam 3233 to move in the same direction until the end faces of the bushing 2128 and the locking dial 231 are pressed against the end face of the cam 2231, and the end faces of the bushing 3234 and the locking dial 232 are pressed against the end face of the cam 3233 to achieve locking. Conversely, the locking dial 231 can be unlocked by rotating counterclockwise from front to back. Example 2

[0061] This embodiment has the same structure as the technical solution. In this embodiment, the locking dial 232 is rotated clockwise from front to back, which drives the bushing 2234 to rotate clockwise. The right-hand thread at the large diameter end of the bushing assembly 2232 pushes the bushing 2234 to move towards the cam 2233, which in turn pushes the cam 2231, the rotating shaft 2126, and the cam 2233 to move in the same direction until the end faces of the bushing 2234 and the locking dial 232 are pressed against the end face of the cam 2233, and the end faces of the bushing 2128 and the locking dial 1 231 are pressed against the end face of the cam 2231 to achieve locking. Conversely, the locking dial 232 can be unlocked by rotating counterclockwise from front to back. Example 3

[0062] This embodiment has the same structure as the technical solution. In this embodiment, locking is achieved by simultaneously rotating locking dial 231 and locking dial 232 clockwise, just like in Embodiment 1 and Embodiment 2. Conversely, unlocking can be achieved by rotating locking dial 231 or locking dial 232 counterclockwise individually, or by rotating locking dial 231 and locking dial 232 counterclockwise simultaneously.

[0063] The working principle of the present invention will be explained in detail below using Embodiment 1 as an example, in conjunction with the accompanying drawings:

[0064] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The device rotates the translation stud 1123 on the first translation mechanism 11 to make it move up and down along the axis of the translation nut 1124 fixed in the stepped hole on the side of the first housing 111. At the same time, it drives the translation nut 1125 to move in the same direction along the axis of the translation stud 1123. Then, the translation stud 1123 and the translation nut 1125 jointly drive the slider 1121 to move up and down along the axis of the guide rail assembly 1122. Meanwhile, the connecting block 14, the second translation mechanism 12 connected thereto, the third translation mechanism 13 located below it, the swing angle adjustment mechanism 2 located in the cavity 133 of the third translation mechanism 13, and the adapter 3 located at the lower end follow the slider 1121 to move up and down, thereby realizing the adjustment of the up and down position of the endoscope shaft part fitted on the adapter 3.

[0065] like Figure 7The device rotates the translation stud 1123 on the second translation mechanism 12 to make it move left and right along the axis of the translation nut 1125 fixed in the stepped hole on the side of the slider 1121. At the same time, it drives the translation nut 1124 to move in the same direction along the axis of the translation stud 1123. Then, the translation stud 1123 and the translation nut 1124 jointly drive the second housing 121 to move left and right along the axis of the guide rail assembly 1122. Meanwhile, the third translation mechanism 13 located below it, the swing angle adjustment mechanism 2 located in the cavity 133 of the third translation mechanism 13, and the adapter 3 located at the lower end move left and right with the second housing 121, thereby realizing the adjustment of the left and right position of the endoscope shaft part mounted on the adapter 3.

[0066] like Figure 8 , Figure 9 , Figure 10 The device rotates the translation stud 1322 on the third translation mechanism 13 to make it move back and forth along the axis of the translation nut 1125 fixed in the stepped hole on the side of the slider 1121. At the same time, it drives the translation nut 1124 to move in the same direction along the axis of the translation stud 1322. Then, the translation stud 1322 and the translation nut 1124 jointly drive the third housing 131 to move back and forth along the axis of the guide rail assembly 1321. Meanwhile, the swing angle adjustment mechanism 2 set in the cavity 133 on the third housing 131 and the adapter 3 set at the lower end move back and forth with the third housing 131, thereby realizing the adjustment of the front and back position of the endoscope shaft set on the adapter 3.

[0067] like Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 The device drives the gear assembly 212 to roll along the rack 213 by rotating the cam 2121. This causes the fifth housing 221 and the slider group 222, which are symmetrically arranged on the upper and lower sides of the cavity 2212 on the fifth housing 221, to slide in an arc shape along the Y-shaped guide groove between the arc-shaped guide rail 1 2141 and the arc-shaped guide rail 2142 and the inverted Y-shaped guide groove between the arc-shaped guide rail 3 2143 and the arc-shaped guide rail 4 2144 on the guide rail group 214 in the groove 2112 and the groove 3 2114 on the fourth housing 211. At the same time, the second gear assembly 223, the rack 224, the guide rail group 4 225 and the adapter 3 at the lower end, which are arranged on the fifth housing 221, also slide in an arc shape.

[0068] like Figure 19 , Figure 20 , Figure 21 , Figure 22The device drives the rack 224 to slide up and down in an arc shape along the arc guide rail assembly 2251 fitted in the arc groove 2241 by rotating the cam 2231 and cam 3 on the second gear assembly 223. At the same time, the adapter 3 set at the lower end of the device also slides up and down in an arc shape.

[0069] like Figure 23 The device drives the locking wheel 2128 to rotate clockwise on the locking wheel assembly 23 from front to back. The left-hand thread on the large diameter end of the bushing assembly 2122 pushes the bushing 2128 to move towards the cam 2231, which in turn pushes the cam 2231, the rotating shaft 2126, and the cam 3233 to move in the same direction until the end faces of the bushing 2128 and the locking wheel 231 are pressed against the end face of the cam 2231, and the end faces of the bushing 3234 and the locking wheel 232 are pressed against the end faces of the cam 3233. This locks the second gear assembly 223, and then the locking rack 224 moves along the arc-shaped guide rail fitted in the arc-shaped groove 2241. Group 2251 slides up and down in an arc within cavity 2214, while simultaneously locking adapter 3, which is located at the lower end of the device, to slide up and down in an arc, preventing the endoscope mounted on adapter 3 from falling. By rotating the locking dial group 23 counterclockwise, locking dial 231 on locking dial group 23 is driven to disengage from bushing 2128 and contact cam 2231. At the same time, locking dial 232 and bushing 3234 also disengage from contact with cam 3233, thereby unlocking the second gear assembly 223. Then, rack 224 and adapter 3, located at the lower end of the device, can slide up and down in an arc along the arc guide rail group 2251 mounted in the arc groove 2241 under the drive of the second gear assembly 223.

[0070] like Figure 24 , Figure 25 ,like Figure 26 ,like Figure 27 The device achieves the horizontal swing of the endoscope shaft mounted on the adapter 3 around the center of the arc-shaped guide rail 2141 by rotating the cam 2121 on the first gear assembly 212 of the first swing angle adjustment mechanism 21. The adjustment range of the swing angle α is ±10°. The device achieves the vertical swing of the endoscope shaft mounted on the adapter 3 around the center of rotation of the rack 224 by rotating the cam 2231 and cam 2233 on the second gear assembly 223 of the second swing angle adjustment mechanism 22. The adjustment range of the swing angle β is ±10°.

Claims

1. A multi-dimensional adjustable device for neuroendoscope fixation, comprising a translation adjustment mechanism (1), a swing angle adjustment mechanism (2) arranged on the front side of the translation adjustment mechanism (1), and an adapter (3) for fixing a neuroendoscope arranged on the lower end of the swing angle adjustment mechanism (2) away from the translation adjustment mechanism (1), characterized in that the translation adjustment mechanism (1) comprises a first translation mechanism (11), a second translation mechanism (12), a third translation mechanism (13), and a connecting block (14) arranged in sequence from top to bottom, wherein the translation axis of the first translation mechanism (11) is arranged in a vertical plane, the translation axis of the second translation mechanism (12) is arranged in a horizontal plane perpendicular to the translation axis of the first translation mechanism (11), the translation axis of the third translation mechanism (13) is arranged in a plane below the horizontal plane of the translation axis of the second translation mechanism (12) and is perpendicular to the translation axes of the first translation mechanism (11) and the second translation mechanism (12), and the connecting block (14) is L-shaped, with the left side connected to the first translation mechanism (11) and the bottom connected to the second translation mechanism (12). The first translation mechanism (11) comprises a first housing (111) and a first translation assembly (112) arranged inside the first housing (111), wherein the first translation assembly (112) comprises a slider one (1121), a guide rail group one (1122), a translation stud one (1123), a translation nut one (1124), and a translation nut two (1125), the slider one (1121) is slidingly sleeved on the guide rail group one (1122), the guide rail group one (1122) is composed of two cylindrical guides with equal diameters and has an axis parallel and coplanar to the axis of the translation stud one (1123), the axis of the translation stud one (1123) is arranged in the center plane of the guide rail group one (1122), the translation nut one (1124) is a right-handed nut sleeved on the large-diameter end of the right-handed stud one (1126) of the translation stud one (1123) through threads and is fixed in a stepped hole in the side of the first housing (111), and the translation nut two (1125) is a left-handed nut sleeved on the small-diameter end of the left-handed stud one (1127) of the translation stud one (1123) through threads and is fixed in a stepped hole in the side of the slider one (1121). The second translation mechanism (12) comprises a second housing (121) and a first translation assembly (112) arranged inside the second housing (121). The first translation mechanism (11) and the second translation mechanism (12) are driven to move along the axial direction of the translation stud one (1123) by rotating the translation stud one (1123), and the translation nut two (1125) is driven to move along the axial direction of the translation stud one (1123) in the same direction, and the translation stud one (1123) and the translation nut two (1125) jointly drive the slider one (1121) to move along the guide rail group one (1122), the first housing (111) is provided with a movable interval one (1111) for the slider one (1121), and the second housing (121) is provided with a movable interval two (1211) for the slider one (1121). ​ The third translation mechanism (13) contains a third shell (131) and a second translation component (132) arranged inside the narrow end of the third shell (131), the wide end of the third shell (131) is provided with a cavity (133), the second translation component (132) has a similar structure to the first translation component (112), one difference is that the length of the guide rail group two (1321) contained in the second translation component (132) is longer than the guide rail group one (1122), the second difference is that the length of the right-handed screw two (1323) at the large diameter end of the second translation screw two (1322) is longer than the right-handed screw one (1126), and the length of the left-handed screw two (1324) at the small diameter end is longer than the left-handed screw one (1127), the translation nut one (1124) is threadedly sleeved on the large diameter end of the right-handed screw two (1323) of the second translation screw two (1322) and fixed in the stepped hole on the side of the narrow end of the third shell (131), the translation nut two (1125) is threadedly sleeved on the small diameter end of the left-handed screw two (1324) of the second translation screw two (1322) and fixed in the stepped hole on the side of the slider one (1121); The third translation mechanism (13) is moved axially by rotating the second translation screw (1322), while driving the translation nut two (1125) to move axially along the second translation screw (1322) in the same direction, and then the second translation screw (1322) and the translation nut two (1125) jointly push the slider one (1121) to move axially along the guide rail group two (1321), the narrow end of the third shell (131) is provided with a movable interval three (1311) for the movement of the slider one (1121); The swing angle adjusting mechanism (2) contains a first swing angle adjusting mechanism (21), a second swing angle adjusting mechanism (22) and a locking dial group (23) arranged in sequence from top to bottom, wherein the first swing angle adjusting mechanism (21) is arranged horizontally, the second swing angle adjusting mechanism (22) is arranged vertically, and the locking dial group (23) is arranged on the second swing angle adjusting mechanism (22); The first swing angle adjusting mechanism (21) contains a fourth housing (211), a first gear assembly (212), a rack one (213), a guide rail group three (214), the fourth housing (211) is arc-shaped face (2111) at the wide end, from top to bottom in turn is provided with recess one (2112), recess two (2113), recess three (2114), the first gear assembly (212) is arranged in arc-shaped face (2111) one side, it contains cam one (2121), shaft sleeve assembly one (2122), gear (2123), shaft sleeve one (2124), compression spring (2125), rotating shaft (2126), threaded pin (2127), shaft sleeve two (2128), wherein cam one (2121), shaft sleeve assembly one (2122), gear (2123), shaft sleeve one (2124), compression spring (2125) are successively sleeved on rotating shaft (2126) from top to bottom, threaded pin (2127) is arranged in the inner hole of shaft sleeve one (2124) and is connected in the lower end of rotating shaft (2126) by thread, the large diameter end of shaft sleeve assembly one (2122) is left-handed thread, shaft sleeve two (2128) is sleeved in the large diameter end of shaft sleeve assembly one (2122) by thread, the rack one (213) is arc-shaped rack, is arranged in recess two (2113) and is high with gear (2123) tooth and mutually engages, rotates cam one (2121) and drives gear assembly (212) to roll along rack one (213), the guide rail group three (214) contains arc-shaped guide rail one (2141), arc-shaped guide rail two (2142), arc-shaped guide rail three (2143), arc-shaped guide rail four (2144), wherein arc-shaped guide rail one (2141) and arc-shaped guide rail three (2143) are identical in specification and are symmetrically arranged relative to rack one (213), arc-shaped guide rail two (2142) and arc-shaped guide rail four (2144) are identical in specification and are symmetrically arranged relative to rack one (213), arc-shaped guide rail one (2141), arc-shaped guide rail two (2142) are installed in recess one (2112) and the arc centers coincide, arc-shaped guide rail three (2143), arc-shaped guide rail four (2144) are installed in recess three (2114) and the arc centers coincide; The second swing angle adjusting mechanism (22) contains a fifth shell (221), a slider group (222), a second gear assembly (223), a rack two (224), a guide rail group four (225), the fifth shell (221) contains a cavity two (2211), a cavity three (2212), a cavity four (2213), a cavity five (2214), a mounting hole group one (2215), a mounting hole group two (2216), a mounting hole group three (2217), a mounting hole group four (2218), wherein the cavity two (2211) is provided from left to right through the fifth shell (221) at the top, the cavity three (2212) is provided from front to back through the fifth shell (221) at the top and penetrates the cavity two (2211), the cavity four (2213) is provided from left to right through the fifth shell (221) at the bottom, the cavity five (2214) is provided from top to bottom through the fifth shell (221) at the right side of the bottom and penetrates the cavity four (2213), the mounting hole group one (2215) is provided from top to bottom through the cavity two (2211) at the left side of the top of the fifth shell (221), the mounting hole group two (2216) is provided from front to back through the cavity four (2213) at the left side of the bottom of the fifth shell (221), the mounting hole group three (2217) and the mounting hole group four (2218) are provided from front to back through the cavity five (2214) at the right side of the bottom of the fifth shell (221), the slider group (222) contains two arc-shaped sliders (2221) symmetrically provided on the upper and lower sides of the cavity three (2212), the cross section of the arc-shaped slider (2221) is Y-shaped, and the narrow end thereof faces the interior of the cavity three (2212), the second gear assembly (223) contains a cam two (2231), a shaft sleeve assembly one (2122), a gear (2123), a rotating shaft (2126), a shaft sleeve assembly two (2232), a cam three (2233), a shaft sleeve two (2128), a shaft sleeve three (2234), wherein the large-diameter end of the shaft sleeve assembly two (2232) is right-handed thread, the cam two (2231), the shaft sleeve assembly one (2122), the gear (2123), the shaft sleeve assembly two (2232), and the cam three (2233) are sequentially sleeved on the rotating shaft (2126) from front to back, the large-diameter end of the shaft sleeve assembly two (2232) is right-handed thread, the shaft sleeve two (2128) is threadedly sleeved on the large-diameter end of the shaft sleeve assembly one (2122) and tightly abuts against the cam two (2231), the shaft sleeve three (2234) is threadedly sleeved on the large-diameter end of the shaft sleeve assembly two (2232) and tightly abuts against the cam three (2233), the cam two (2231) and the cam three (2233) are connected with the rotating shaft (2126) through screws, the small-diameter ends of the shaft sleeve assembly one (2122) and the shaft sleeve assembly two (2232) are threadedly sleeved in the mounting hole group two (2216), the gear (2123) is arranged in the cavity four (2213), and the rack two (224) is arranged in the cavity five (2214) and engages with the gear (2123), and an arc-shaped groove (2241) is arranged on the rack two (224).The installation hole group three (2217) and the installation hole group four (2218) penetrate the arc-shaped slot (2241), the guide rail group four (225) contains the arc-shaped guide rail group (2251), the positioning assembly one (2252), the positioning assembly two (2253), wherein the arc-shaped guide rail group (2251) is a I-shaped section and is composed of a pair of arc-shaped guide rail five (2254) symmetrically spliced, the arc-shaped guide rail five (2254) is a T-shaped section and is provided with the positioning hole one (2255) and the positioning hole two (2256) at both ends, the positioning assembly one (2252) and the positioning assembly two (2253) are composed of the threaded pin two (2257) and the nut (2258) through threaded butt joint, the positioning assembly one (2252) is sleeved in the positioning hole one (2255) and the positioning hole two (2256) at the small diameter end and is sleeved in the installation hole group three (2217) and the installation hole group four (2218) at the large diameter end, the positioning assembly two (2253) is sleeved in the positioning hole one (2255) and the positioning hole two (2256) at the small diameter end and is sleeved in the installation hole group three (2217) and the installation hole group four (2218) at the large diameter end, the arc-shaped guide rail group (2251) is arranged in the cavity five (2214) and is sleeved in the arc-shaped slot (2241) at the narrow end, the arc length of the arc-shaped slot (2241) is greater than the arc length of the narrow end of the arc-shaped guide rail group (2251), and rotating the second gear assembly (223) drives the rack two (224) to slide up and down on the arc-shaped guide rail group (2251) of the guide rail group four (225). The locking dial group (23) contains locking dial one (231) and locking dial two (232), locking dial one (231) is sleeved and is fixed on shaft sleeve two (2128) by screw, locking dial two (232) is sleeved and is fixed on shaft sleeve three (2234) by screw; The adapter (3) is fixed in the thin end of rack two (224) by screw, the shaft hole (31) is used to sleeve endoscope shaft part, the axis A of shaft hole (31) is located below the arc center of arc-shaped guide rail one (2141) in vertical plane and passes through the rotation center of arc-shaped rack two (224). The inner mirror on the adapter (3) is adjusted by rotating the first translation mechanism (11) on the translation screw (1123) to adjust the axial position, by rotating the second translation mechanism (12) on the translation screw (1123) to adjust the left and right position, by rotating the third translation mechanism (13) on the translation screw (1123) to adjust the front and back position, by rotating the cam (2121) on the swing angle adjustment mechanism (2) to adjust the swing angle (α) around the front end, the swing angle (α) adjustment range is ±10°, by rotating the cam (2231) or cam (2233) on the swing angle adjustment mechanism (2) or rotating both to adjust the swing angle (β) around the front end, the swing angle (β) adjustment range is ±10°.

2. The multi-dimensionally adjustable device for neuroendoscope fixation according to claim 1, wherein, The cylindrical guide rails of the guide rail group one (1122) and the guide rail group two (1321) are equal in diameter.

3. The multi-dimensionally adjustable device for neuroendoscope fixation according to claim 1, wherein, The active interval one (1111) and the active interval two (1211) are equal in size, and the active interval three (1311) is larger than the active interval one (1111) and the active interval two (1211).

4. The multi-dimensionally adjustable device for neuroendoscope fixation according to claim 1, wherein, The right-handed screw (1126) on the translation screw (1123) has a larger thread caliber and thread pitch than the left-handed screw (1127), and the right-handed screw (1323) on the translation screw (1322) has a larger thread caliber and thread pitch than the left-handed screw (1324).

5. The multi-dimensionally adjustable device for neuroendoscope fixation according to claim 1, wherein, The inner arc surface radius of the arc guide rail one (2141) and the arc guide rail three (2143) is consistent with the outer arc surface radius of the narrow end of the arc slider (2221), and the outer arc surface radius of the arc guide rail two (2142) and the arc guide rail four (2144) is consistent with the inner arc surface radius of the narrow end of the arc slider (2221).

6. The multi-dimensionally adjustable device for neuroendoscope fixation according to claim 1, wherein, The guide groove section between the arc guide rail one (2141) and the arc guide rail two (2142) is Y-shaped, and the guide groove section between the arc guide rail three (2143) and the arc guide rail four (2144) is upside-down Y-shaped.

7. The multi-dimensionally adjustable device for neuroendoscope fixation according to any one of claims 1-6, wherein, The application of the locking dial group realizes the active locking and unlocking of the second swing angle adjustment mechanism at any time, and the active locking and unlocking mode is three kinds.

8. A multi-dimensional adjustable device for neuroendoscope fixation according to claim 7, wherein, The active locking and unlocking mode one is to rotate the locking dial one (231) clockwise from the front to the rear position, thereby driving the shaft sleeve two (2128) to rotate clockwise, the large diameter end of the shaft sleeve assembly one (2122) left-handed thread pushes the shaft sleeve two (2128) to move towards the cam two (2231), thereby pushing the cam two (2231), the rotating shaft (2126), and the cam three (2233) to move in the same direction, until the end face of the shaft sleeve two (2128) and the locking dial one (231) is tightly pressed against the end face of the cam two (2231), and the end face of the shaft sleeve three (2234) and the locking dial two (232) is tightly pressed against the end face of the cam three (2233) to realize locking, and conversely, rotating the locking dial one (231) counterclockwise from the front to the rear position can realize unlocking.

9. The multi-dimensionally adjustable device for neuroendoscope fixation according to claim 7, wherein, The second active locking and unlocking mode is to rotate the locking dial two (232) clockwise from front to back, thereby driving the shaft sleeve three (2234) to rotate clockwise, the large-diameter end of the shaft sleeve assembly two (2232) right-handed thread pushes the shaft sleeve three (2234) to move towards the cam three (2233), thereby pushing the cam two (2231), the rotating shaft (2126), and the cam three (2233) to move together, until the end face of the shaft sleeve three (2234) and the locking dial two (232) is tightly pressed against the end face of the cam three (2233), and the end face of the shaft sleeve two (2128) and the locking dial one (231) is tightly pressed against the end face of the cam two (2231), achieving locking. Conversely, rotating the locking dial two (232) counterclockwise from front to back can achieve unlocking.

10. The multi-dimensionally adjustable device for neuroendoscope fixation according to claim 7, wherein, The third active locking and unlocking mode is to rotate the locking dial one (231) and the locking dial two (232) clockwise at the same time, which achieves locking in the same way as the first and second modes. Conversely, rotating the locking dial one (231) and / or the locking dial two (232) counterclockwise alone can achieve unlocking.

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