Positioning device for assisting non-human primate spinal cord injury model manufacturing
By combining the mounting frame and lifting drive device with the guide groove design of the positioning guide needle, the problem of inconsistent cutting tracks in the fabrication of spinal cord hemisection injury models was solved, and precise cutting of spinal cord injury models was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2026-03-27
AI Technical Summary
Existing methods for creating spinal cord hemisection injury models lack localization, leading to inconsistent cutting trajectories and a tendency to make too many or too few cuts.
The device employs a combination of a mounting frame, a lifting drive device, and a positioning guide pin. The inner side of the positioning guide pin's body and tip forms a guide groove, and the scalpel slides along the guide groove to make cuts, ensuring the consistency of the cutting trajectory.
It improves the consistency of cutting trajectories when creating non-human primate spinal cord injury models and reduces the risk of cutting deviation.
Smart Images
Figure CN224039386U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to non - human primates spinal cord injury model manufacturing equipment technical field especially, it is a kind of positioning device for assisting non - human primates spinal cord injury model manufacturing. BACKGROUND
[0002] In medical experiment for researching certain specific disease, it is extremely important to collect research data through experimental animal, such as the research for spinal cord injury. For spinal cord injury, the more suitable experimental animal is monkey, wherein, it is a crucial link to make animal spinal cord injury model through monkey for researching spinal cord injury mechanism and its treatment method.
[0003] At present, there are mainly the following several animal spinal cord injury models: including hemostatic forceps clamp method spinal cord crush injury model, heavy weight falling method spinal cord impact injury model, spinal cord transection injury model, spinal cord hemisection injury model, balloon extrusion injury model and the like. However, the existing spinal cord hemisection injury model is usually made in artificial way, after cutting open dura mater, the artificial hand-held scalpel directly cuts the spinal cord, but this hemisection method without positioning is difficult to grasp the consistency of cutting track, and the track is easy to deviate in the process of cutting open spinal cord, resulting in more cutting or less cutting. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of positioning device for assisting non - human primates spinal cord injury model manufacturing.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A kind of positioning device for assisting non - human primates spinal cord injury model manufacturing, including mounting bracket, lift driving device installed on mounting bracket and the positioning guide needle installed below the telescopic rod of lift driving device, positioning guide needle is lifted by lift driving device;The positioning guide needle is straight needle, which is formed with needle body and needle tip integrally connected at the first end of needle body, the cross section of needle body and needle tip is all in the shape of a crescent moon, and the inner side of needle body and needle tip is formed into guide knife groove.
[0007] As a further technical scheme of the utility model: the tail portion of the telescopic rod of the lift driving device is provided with a knob seat with a scale dial and a knob main body that can be torsionally installed at the bottom of the knob seat, the bottom of the knob main body is provided with a fixing part for inserting and mounting the positioning guide needle, the knob main body can be rotated, and the positioning guide needle can be rotated to the corresponding angle with the fixing part under the measurement of the scale dial.
[0008] As a further technical scheme of the utility model: the positioning guide needle is formed with a needle handle integrally connected at the tail end of the needle body, and the fixing part is formed with a fixing hole for vertically inserting and mounting the needle handle of the positioning guide needle.
[0009] As a further technical scheme of the utility model: the needle handle of the positioning guide needle is a cylindrical handle or a square column handle with an outer diameter larger than the needle body.
[0010] As a further technical scheme of the utility model: the fixing part is a pressure sensor.
[0011] As a further technical scheme of the utility model: the needle tip of the positioning guide needle is round and blunt.
[0012] Compared with the prior art, the utility model has the beneficial effects that: the positioning device for assisting non-human primate spinal cord injury model manufacturing is provided with a mounting frame, a lifting driving device and a positioning guide needle, after the needle tip and the tail end of the needle body are inserted into the spinal cord, a guide knife groove is formed through the inside of the needle body and the needle tip, a scalpel can slide down from the head end of the needle body along the guide knife groove, the spinal cord is half-cut without deviation of the cutting track, and the consistency of the cutting track during non-human primate spinal cord injury model manufacturing is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic view of the positioning device for assisting non-human primate spinal cord injury model manufacturing.
[0014] Figure 2 It is a principle diagram of the positioning device for assisting non-human primate spinal cord injury model manufacturing.
[0015] Figure 3 It is a sectional view of the needle body of the positioning guide needle. DETAILED DESCRIPTION
[0016] The specific embodiments of the utility model are described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the protection scope of the utility model.
[0017] Please refer to Figure 1 , Figure 2 and Figure 3The application relates to a positioning device for assisting in manufacturing a spinal cord injury model of a non-human primate, which comprises a mounting frame 10, a lifting driving device 20 mounted on the mounting frame 10 and a positioning guide needle 30 mounted below a telescopic rod of the lifting driving device 20, wherein the lifting driving device 20 drives the positioning guide needle 30 to lift; the positioning guide needle 30 is a straight needle, which is formed with a needle body 31, a needle tip 32 integrally connected to a head end of the needle body 31 and a needle handle 33 integrally connected to a tail end of the needle body 31, the cross sections of the needle body 31 and the needle tip 32 are both in the shape of a crescent moon, a guide groove 301 is formed in the inner side of the needle body 31 and the needle tip 32, the mounting frame 10 is arranged above a monkey, the dura mater is manually cut, the lifting driving device 20 is correspondingly arranged above the incision, the lifting driving device 20 drives the positioning guide needle 30 to descend, the needle tip 32 of the positioning guide needle 30 penetrates into the spinal cord together with the tail end of the needle body 31, a surgical knife can slide from the head end of the needle body 31 along the guide groove 301, and the spinal cord is half-cut, and the cutting track is not deviated.
[0018] Further, in the embodiment, a knob seat 41 with a scale dial is mounted at the tail end of the telescopic rod of the lifting driving device 20, and a knob main body 42 is twistably mounted at the bottom of the knob seat 41, the bottom of the knob main body 42 is provided with a fixing piece 43 for inserting and mounting the positioning guide needle 30, the knob main body 42 can be rotated, the positioning guide needle 30 can be rotated to a corresponding angle together with the fixing piece 43 under the measurement of the scale dial, and the cutting angle is consistent every time the non-human primate spinal cord injury model is manufactured.
[0019] Further, according to actual requirements, the shape of the needle handle 33 can be flexibly designed, including but not limited to a cylindrical handle or a square column handle with an outer diameter larger than that of the needle body 31.
[0020] Further, in the embodiment, the fixing piece 43 is a pressure sensor, which is formed with a fixing hole for vertically inserting and mounting the needle handle 33 of the positioning guide needle 30, so as to transmit a signal to the lifting driving device 20 when the positioning guide needle 30 penetrates the spinal cord, stop the driving of the lifting driving device 20 and control the lifting of the lifting driving device 20.
[0021] Further, in the embodiment, the needle tip 32 of the positioning guide needle 30 is round and blunt, so as to avoid damaging the dura mater after the spinal cord is half-cut.
[0022] It can be understood that the use method of the positioning device for assisting non-human primate spinal cord injury model manufacturing includes the following steps: first, the positioning device is used with the action limiting device and the spinal cord pad 51, the monkey is fixed through the action limiting device, the mounting frame 10 is erected above the monkey, the dura mater in front is cut manually, and the lifting driving device 20 is located above the incision in correspondence; then, one end of the spinal cord pad 51 is inserted into the incision and is placed between the spinal cord and the dura mater behind. Second, the knob main body 42 is rotated, and under the measurement of the dial, the positioning guide needle 30 is rotated to the corresponding angle together with the fixing piece 43; then, the positioning device is started, the lifting driving device 20 drives the positioning guide needle 30 to descend, the needle tip 32 of the positioning guide needle 30 and the tail end of the needle body 31 are inserted into the spinal cord, until the needle tip 32 abuts against the spinal cord pad 51, and the lifting driving device 20 stops driving. Third, the scalpel slides down from the head end of the needle body 31 along the guide knife groove 301, and the spinal cord is half cut. In this way, the positioning device ensures that the cutting track is consistent every time the non-human primate spinal cord injury model is manufactured.
[0023] In summary, the positioning device for assisting non-human primate spinal cord injury model manufacturing cooperates among the mounting frame 10, the lifting driving device 20 and the positioning guide needle 30, after the needle tip 32 of the positioning guide needle 30 and the tail end of the needle body 31 are inserted into the spinal cord, the guide knife groove 301 is formed through the inside of the needle body 31 and the needle tip 32, the scalpel can slide down from the head end of the needle body 31 along the guide knife groove 301, the spinal cord is half cut without deviation of the cutting track, and therefore the consistency of the cutting track every time the non-human primate spinal cord injury model is manufactured is improved.
[0024] As long as the idea of the present application is not violated, various different embodiments of the present application can be combined arbitrarily, and all should be regarded as the disclosed content of the present application; within the technical concept of the present application, various simple modifications of the technical scheme and arbitrary combinations of different embodiments without violating the idea of the present application should be within the protection scope of the present application.
Claims
1. A positioning device for assisting in the creation of a non-human primate spinal cord injury model, characterized in that: The device comprises a mounting frame (10), a lifting driving device (20) mounted on the mounting frame (10), and a positioning guide needle (30) mounted below the telescopic rod of the lifting driving device (20) and driven by the lifting driving device (20) to lift and lower.
2. The positioning device for assisting in the production of a non-human primate spinal cord injury model according to claim 1, wherein: The lifting driving device (20) is provided with a knob seat (41) with a scale dial at the tail of the telescopic rod and a knob body (42) torsionally mounted at the bottom of the knob seat (41), the bottom of the knob body (42) is provided with a fixing part (43) for inserting and mounting the positioning guide needle (30), and the knob body (42) is rotatable to rotate the positioning guide needle (30) and the fixing part (43) to a corresponding angle under the measurement of the scale dial.
3. The positioning device for assisting in the production of a non-human primate spinal cord injury model according to claim 2, wherein: The positioning guide needle (30) is formed with a needle handle (33) integrally connected to the tail end of the needle body (31), and the fixing part (43) is formed with a fixing hole for vertically inserting the needle handle (33) of the positioning guide needle (30).
4. The positioning device for assisting in the production of a non-human primate spinal cord injury model according to claim 3, wherein: The needle handle (33) of the positioning guide needle (30) is a cylindrical handle or a square column handle with an outer diameter larger than that of the needle body (31).
5. The positioning device for assisting in the production of a non-human primate spinal cord injury model according to claim 3, wherein: The fixing part (43) is a pressure sensor.
6. The positioning device for assisting in the production of a non-human primate spinal cord injury model according to claim 1, wherein: The needle tip (32) of the positioning guide needle (30) is round and blunt.