CN213249950U - Rat intervertebral disc cutting device - Google Patents
Rat intervertebral disc cutting device Download PDFInfo
- Publication number
- CN213249950U CN213249950U CN202021622069.5U CN202021622069U CN213249950U CN 213249950 U CN213249950 U CN 213249950U CN 202021622069 U CN202021622069 U CN 202021622069U CN 213249950 U CN213249950 U CN 213249950U
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- China
- Prior art keywords
- rat
- intervertebral disc
- cutting device
- operating rod
- action bars
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- 230000009471 action Effects 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 20
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 210000000707 wrist Anatomy 0.000 description 4
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 2
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010029174 Nerve compression Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 230000008506 pathogenesis Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011552 rat model Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
Images
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- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model discloses a rat intervertebral disc cutting device, including action bars, centre gripping subassembly, position adjustment subassembly and cutting member, the centre gripping subassembly passes through the position adjustment subassembly and links to each other with the action bars slip for the centre gripping rat centrum, the relative centre gripping subassembly of action bars can reciprocate in the vertical direction, the cutting member is fixed in on the action bars and it is located between two supporting rods, the cutting member cuts off the rat centrum under the effect of action bars behind the centre gripping subassembly centre gripping rat centrum. The utility model has the advantages of simple operation, convenience, safety, repeated use, capability of adjusting the size according to the body type of the rat, suitability for various rat intervertebral disc experiments, and the like.
Description
Technical Field
The utility model relates to a use tool for intervertebral disc operation modeling, in particular to a rat intervertebral disc cutting device.
Background
The rat model for intervertebral disc experiment is usually required to cut the intervertebral disc of the rat vertebral body and embed the intervertebral disc in the lumbar spinal canal or back muscle, so as to simulate the nerve compression condition of the rat vertebral or observe the changes of dehydration, reduction and the like of the embedded intervertebral disc, and provide reliable basis for clinical research on pathogenesis, treatment and prevention of the lumbar intervertebral disc protrusion.
The conventional method for cutting out the intervertebral disc of a rat is to anesthetize the rat, cut open the skin of the caudal vertebra to expose the intervertebral disc, cut off the upper and lower adjacent vertebral bodies of the desired intervertebral disc in sequence with a 7-gauge surgical blade, and take out the intervertebral disc.
The above-described intervertebral disc cutting method has problems in that: (1) the bone of the vertebral body is hard, the wrist force required when the blade is used for cutting is large, certain difficulty exists for partial female experimenters or people with insufficient wrist force, and the experimental molding speed is influenced; (2) the tail of the rat is thin, the rat is easy to roll and is not easy to fix, when a user takes materials, the user holds the hand of the knife and fixes the rat tail with the hand of the user, the fixing effect is not good enough, once the rat is not enough in anesthesia depth and does not twist the body after being stimulated by pain, the user is very likely to be injured by cutting the vertebral body with the blade; (3) when the intervertebral disc is cut, the face of an operator needs to be close to the caudal vertebra so as to accurately lower the cutter, but the cutter is not good in quality or can be broken under the condition of insufficient toughness, and the cutter is quite dangerous under the condition that the cutter is stressed greatly in the operation and can be bounced to break the cutter once broken, so that an experimenter is easily injured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a rat intervertebral disc cutting device easy and simple to handle, cut accurately.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rat intervertebral disc cutting device, includes action bars, centre gripping subassembly, position adjustment subassembly and cutting member, the centre gripping subassembly includes two supporting rods of vertical setting, every the supporting rod passes through the position adjustment subassembly with the action bars slides and links to each other, along the action bars adjusting position on the horizontal direction, until centre gripping rat centrum between two supporting rods, the action bars is relative the centre gripping subassembly reciprocates in the vertical direction, cutting member is vertical to be fixed in on the action bars and it is located between two supporting rods, cutting member is used for moving until cutting off the rat centrum to the direction that is close to the rat centrum in the vertical direction under the effect of action bars behind two supporting rods centre gripping rat centrum.
Preferably, the rat vertebral body is arranged on the object placing plate, the device further comprises an elastic damping part, and the upper end and the lower end of the elastic damping part are respectively fixed on the operating rod and the object placing plate.
Preferably, two elastic damping pieces are arranged between the operating rod and the object placing plate, and the elastic damping pieces are symmetrical about the center of the operating rod.
Preferably, the elastic damping member is a spring.
Preferably, the position adjustment assembly includes a sliding groove and a limiting part, the sliding groove is disposed on the operating rod and extends axially on the operating rod, the limiting part is disposed on the operating rod, the clamping rod vertically passes through the sliding groove and the limiting part, the limiting part is used for being fixed with the operating rod after the clamping rod is horizontally adjusted to a corresponding position along the sliding groove, and one clamping part corresponds to one limiting part.
Preferably, the limiting member is perpendicular to the operating rod on the operating rod, and the longitudinal width of the limiting member is at least greater than the width of the sliding groove.
Preferably, the limiting member is fixed to the operating rod through a fixing member.
Preferably, the fixing member is a screw.
Preferably, the upper end of the cutting member is directly fixed to the operating rod or indirectly fixed to the operating rod through a fixing rod.
Preferably, the cutting member is a number 11 surgical blade.
Compared with the prior art, the utility model provides a traditional handheld blade method require high, need artifical fixed rat tail, the risk degree is high in the operation to the wrist power, easily cut off the risk of rat tail during the cutting centrum. Has the advantages of simple and convenient operation, convenience and safety, repeated use, capability of adjusting the size according to the body type of the rat, suitability for various rat intervertebral disc experiments and the like.
Drawings
Fig. 1 is a schematic structural diagram of the rat intervertebral disc cutting device of the present invention.
Reference numerals:
1. the device comprises an operating rod, 2, a clamping assembly, 21, a clamping rod, 3, a position adjusting assembly, 31, a sliding groove, 32, a limiting piece, 33, a through hole, 4, a cutting piece, 5, an elastic damping piece, 6, an object placing plate, 7 and a rat intervertebral disc.
Detailed Description
The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
The embodiment of the utility model discloses a rat intervertebral disc cutting device that discloses can be used to the operation of intervertebral disc protrusion rat and make the mould. As shown in fig. 1, the rat intervertebral disc cutting device comprises an operating rod 1, a clamping assembly 2, a position adjusting assembly 3, a cutting member 4, an elastic damping member 5 and an object placing plate 6, wherein the operating rod 1 is horizontally arranged and located above the object placing plate 6, and two ends of the operating rod 1 are operating handles for a user to hold.
The clamping component 2 is slidably mounted on the operating rod 1 through the position adjusting component 3, and is used for sliding on the operating rod 1 along the horizontal direction according to the size of the rat intervertebral disc 7 to be cut, and adjusting the rat intervertebral disc 7 to be clamped at a corresponding position.
In this embodiment, the clamping assembly 2 includes two vertical clamping rods 21 arranged at intervals, the two clamping rods 21 are slidably mounted on the operating rod 1 through the position adjusting assembly 3, and the two clamping rods can be independently adjusted in position until the gap between the two clamping rods is adjusted to be equal to or slightly equal to the width of the rat intervertebral disc 7, that is, the rat intervertebral disc 7 is clamped in the two clamping rods 21. In this embodiment, the rat intervertebral disc 7 is preferably placed on the central axis of the operating rod 1 such that the two clamping rods 21 are also symmetrical about the central axis of the operating rod 1.
The position adjusting assembly 3 is disposed on the operation rod 1, in this embodiment, the position adjusting assembly 3 specifically includes a sliding groove 31 and two limiting members 32, wherein the sliding groove 31 is disposed on the operation rod 1 and axially extends on the operation rod 1, the sliding groove 31 penetrates through the operation rod 1, and the transverse length and the longitudinal width of the sliding groove are both smaller than the transverse length and the longitudinal width of the operation rod 1. Two limiting members 32 are located on the operating rod 1, and one limiting member 32 corresponds to one clamping rod 21. In this embodiment, the installation direction of each limiting member 32 on the operating rod 1 is perpendicular to the direction of the operating rod 1, that is, the limiting member 32 is longitudinally installed on the operating rod 1, and the longitudinal width of the limiting member 32 is greater than the longitudinal width of the sliding groove 31 on the operating rod 1, so that the limiting member 32 can be located on the operating rod 1. The stopper 32 is provided with a through hole 33 through which the clamping lever 21 passes, and the clamping lever 21 passes through the sliding groove 31 and the through hole 33. In this embodiment, the principle that each clamping rod 21 adjusts the position through the position adjusting assembly 3 is as follows: in the process of horizontally adjusting the position of the clamping rod 21, the limiting member 32 moves along with the clamping rod 21, and after the clamping rod 21 is adjusted to the corresponding position, the limiting member 32 is fixed to the operating rod 1 by a corresponding fixing member (such as a screw, not shown) to limit the movement of the clamping rod 21 in the horizontal direction.
The cutting member 4 is fixed to the operating rod 1 between two clamping rods 21, preferably in the center of the operating rod 1. In practice, the upper end of the cutting member 4 may be fixed directly to the operating rod 1, or may be fixed to the operating rod 1 by a fixing rod. In this embodiment, the cutting member 4 and the clamping rod 21 are arranged in a staggered manner, and the cutting member is an 11-size surgical blade.
In this embodiment, the operating rod 1 can move up and down relative to the clamping rod 21, and the cutting member 4 thereon is driven to move in the vertical direction towards the rat vertebral body on the object placing plate 6, so as to cut off the rat vertebral body, or move and reset in the direction away from the object placing plate 6.
The utility model discloses a theory of operation does: the rat is anesthetized, the prone position is taken, the dorsal incision of the rat tail is taken after the rat is sterilized, the caudal vertebra is exposed, the caudal vertebra is separated from the ventral skin soft tissue, and the caudal vertebra of the rat is placed on the object placing plate. Then, according to the size of the taken intervertebral disc, the clamping rods 21 are slid, the distance between the two clamping rods 21 is adjusted, the screws on the limiting pieces 32 are screwed after the distance is proper, the clamping rods 21 and the operating rod 1 are firmly fixed, and the distance between the two clamping rods 21 is not changed any more.
And then after the surgical blade is positioned at the position needing to be cut, the operating rod 1 is pressed, the force for cutting the surgical blade can be controlled due to the resistance action of the spring, the force is slowly applied until the upper vertebral body and the lower vertebral body are adjacent to each other are cut off, the integrity of the needed intervertebral disc is good, the surgical blade resets under the action of the spring after the vertebral bodies are cut off, the surgical blade returns to the initial position, and the experimental step of cutting the rat intervertebral disc is completed once.
For the method of original handheld blade surely getting the intervertebral disc, the utility model discloses the risk of easily cutting off the rat tail when the device has solved traditional handheld blade method and has required high, need artifical fixed rat tail, cutting centrum to the wrist power. Has the advantages of simple and convenient operation, convenience, safety, repeated use, suitability for various rat intervertebral disc experiments, and the like.
The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.
Claims (10)
1. The utility model provides a rat intervertebral disc cutting device, its characterized in that includes action bars, centre gripping subassembly, position adjustment subassembly and cutting member, the centre gripping subassembly includes two supporting rods of vertical setting, every the supporting rod passes through the position adjustment subassembly with the action bars slides and links to each other, along the action bars adjusting position on the horizontal direction, until centre gripping rat centrum between two supporting rods, the action bars is relative the centre gripping subassembly reciprocates in the vertical direction, cutting member is vertical to be fixed in on the action bars and it is located between two supporting rods, cutting member is used for moving until cutting off the rat centrum to the direction that is close to the rat centrum in the vertical direction after two supporting rods grasp the rat centrum under the effect of action bars.
2. The rat intervertebral disc cutting device according to claim 1, wherein the rat vertebral body is placed on a placement plate, the device further comprising an elastic damping member, wherein upper and lower ends of the elastic damping member are fixed to the operation rod and the placement plate, respectively.
3. A rat intervertebral disc cutting device according to claim 2, wherein two elastic damping members are provided between the operating rod and the placing plate, the elastic damping members being symmetrical about the centre of the operating rod.
4. A rat intervertebral disc cutting device according to claim 2 or 3, wherein the elastic damping member is a spring.
5. The rat intervertebral disc cutting device according to claim 1, wherein the position adjustment assembly includes a sliding groove provided on the operating rod and extending axially thereon, and a stopper provided on the operating rod, the clamping rod vertically passes through the sliding groove and the stopper, the stopper is configured to be fixed to the operating rod after the clamping rod is horizontally adjusted to a corresponding position along the sliding groove, one clamping rod corresponds to one stopper.
6. The rat intervertebral disc cutting device according to claim 5, wherein the stopper is perpendicular to the lever on the lever, and a longitudinal width of the stopper is at least larger than a width of the sliding groove.
7. The rat intervertebral disc cutting device according to claim 5, wherein the stopper is fixed to the lever by a fixing member.
8. The rat intervertebral disc cutting device according to claim 7, wherein the fasteners are screws.
9. A rat intervertebral disc cutting device according to claim 1, wherein the upper end of the cutting member is fixed directly to the operating rod or indirectly to the operating rod through a fixing rod.
10. A rat intervertebral disc cutting device according to claim 1 or 9, wherein the cutting element is a number 11 surgical blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622069.5U CN213249950U (en) | 2020-08-06 | 2020-08-06 | Rat intervertebral disc cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622069.5U CN213249950U (en) | 2020-08-06 | 2020-08-06 | Rat intervertebral disc cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213249950U true CN213249950U (en) | 2021-05-25 |
Family
ID=75969897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021622069.5U Expired - Fee Related CN213249950U (en) | 2020-08-06 | 2020-08-06 | Rat intervertebral disc cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213249950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115363811A (en) * | 2022-09-28 | 2022-11-22 | 北京昭衍新药研究中心股份有限公司 | Rat tail breaking device |
-
2020
- 2020-08-06 CN CN202021622069.5U patent/CN213249950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115363811A (en) * | 2022-09-28 | 2022-11-22 | 北京昭衍新药研究中心股份有限公司 | Rat tail breaking device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210525 |