CN205814469U - Rat vertebral plate bone scissors - Google Patents
Rat vertebral plate bone scissors Download PDFInfo
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- CN205814469U CN205814469U CN201620429969.5U CN201620429969U CN205814469U CN 205814469 U CN205814469 U CN 205814469U CN 201620429969 U CN201620429969 U CN 201620429969U CN 205814469 U CN205814469 U CN 205814469U
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- sword
- ligule
- vertebral plate
- hand holding
- holding handle
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Abstract
This utility model is created and is related to a kind of rat vertebral plate bone scissors, and rat vertebral plate bone scissors includes Handheld Division and cut part, and Handheld Division includes left hand holding handle, right hand holding handle, the screw of connection left and right hand holding handle and connects the shell fragment of the hand-held handle tail in left and right；Cut part includes ligule sword and annular sword, and ligule sword and left hand holding handle are integral type structure, and annular sword is integral type structure with right hand holding handle, and the two is hinged by screw；Ligule sword front end and annular sword front end are at a certain angle in rat vertebral plate bone scissors shape；It is identical with the contact surface of ligule sword that the outside of ligule sword and the inner side of annular sword are dull face and annular sword so that when shearing, ligule sword coincide with annular sword.It is provided with LED and late release control circuit thereof so that observing situation about shearing on annular sword.This utility model create can effectively control shear dynamics, direction, stress point, accurate positioning and be not easy infect bone marrow, shear history is fast and simple.
Description
Technical field
The invention relates to a kind of rat vertebral plate bone scissors, and this device can be used for stinging except the vertebral plate of rat spinal cord periphery,
So that making the spinal cord beating wound model of rat.
The invention further relates to a kind of rat vertebral plate using above-mentioned rat vertebral plate bone scissors and wipes out method.
Background technology
Present stage spinal cord injury is still one difficult problem being difficult to capture of International Medical, and the treatment of spinal cord injury has become as heat
The research field of door, substantial amounts of researcher is put in a series of researchs of spinal cord injury.And animal spinal cord damage model
It it is then the important tool of research spinal cord injury.Applying at present most in animal spinal cord damage model is that mould is hindered in the strike of rat
Type, because it can ridge after Spinal compression that more effectively degeneration of the eminence in simulating human disease causes and bursting fracture
Marrow damages.But in the manufacturing process of this model, on the premise of artificial Spinal Cord, stinging of vertebral plate removes a disaster often
Topic.
The most more conventional method except vertebral plate of stinging mainly uses Wen's pincers, mosquito forceps etc. for zoopery the most not
It is the most professional equipment, allows one end of clamp head part insert intervertebral space and then to sting except vertebral plate, thus reach exposing spinal cord, make model
Purpose.But using this type of was the instrument on person when stinging except rat vertebral plate originally, often undue force and cause
Spinal cord injury, animal are bled profusely and the residual of vertebral plate bits infects.
The utility model patent of Patent No. 201420699224.1 discloses such a rat vertebral plate bone scissors, it
Cut part there is the left arm and right arm being rotationally connected, wherein, what the front end of left arm was bent to form downwards predetermined angular first cuts
Cutting portion, it is possible to stretch into vertebral foramen from intervertebral space, the first cut part has cuts tooth, cuts the length that tooth covered relative with the length of vertebral plate
Should, the front end of right arm forms the second cut part, and the shape of the second cut part bending matches with the first cut part, the second cut part
Have and corresponding with the first cut part cut tooth.This rat vertebral plate bone scissors has the disadvantage that
(1) shearing dynamics is difficult to control to.Due in this bone scissors, time mutually moving in two cut parts in addition to the active force of people
Not external force equilibrium, so in the case of manual operation, being very easy to overexert and cause spinal cord injury.
(2) shear direction is difficult to control to.This bone scissors is when shearing, and intervertebral space is stretched in the first cut part, then two shears
Portion is simultaneously to vertebral plate effect, owing to being manual operation, is the most just very easy to cause total power thrusts inwardly (i.e. ridge
Marrow direction), the spinal cord of fragility will be damaged to the most at once.
(3) shear stress point to be difficult to control to.In this bone scissors, owing to two cut parts are all elongated, when shearing even
It is to prepare to shear front stress point or the strong point the most not easily causing spinal cord injury, it has not been convenient to shear and easily make
Become spinal cord injury.
(4) spinal cord is easily infected.Owing in this bone scissors, two cut parts are all elongated and do not have the effective precautionary measures,
So the vertebral plate bits of output may be fallen in vertebral plate in shear history, thus infect spinal cord.
(5) position inaccurate.Rat vertebral plate shear history is difficult to shine shearing position, institute due to general extraneous light
During to shear, bad observation is sheared position and controls shear history, causes location inaccurate.
Even disadvantages described above makes the scientific research personnel that technology is the most skilled, spinal cord can be damaged to the most unavoidably, the most relevant
Blood vessel, cause the damage in advance of spinal cord and spinal dural rupture, the stability of experimental data is constituted most important by this
Impact, directly result in the inhomogeneity of experimental group degrees of spinal cord injury, thus cause the deviation in experimental data, it is impossible to
To satisfied Expected Results.
Summary of the invention
The invention to solve the technical problem that be to provide can effectively control shearing dynamics, shear direction, shearing are subject to
Force, it is easy to location and does not easily cause rat vertebral plate bone scissors that spinal cord infects and use the rat of this rat vertebral plate bone scissors
Vertebral plate wipes out method.This bone scissors shear history is fast and simple, can be prevented effectively from Spinal Cord, and rat will not be caused extra damage
Wound, can be substantially reduced experimental implementation time and mortality of animals, promotes homogeneity and the stability of experimental implementation.
For achieving the above object, the basic conception of the invention is: include Handheld Division and cut part, wherein:
Described Handheld Division includes left hand holding handle, right hand holding handle, the screw of connection left and right hand holding handle and connects left and right hand holding handle
The shell fragment of afterbody.
Described cut part includes ligule sword and annular sword, and described ligule sword and left hand holding handle are integral type structure, ring
Shape sword and right hand holding handle are integral type structure, and the two is hinged by screw, the preferred branchia shaft screw of described screw.
Described ligule sword is flat tongue structure, and ligule sword forms an angle with left hand holding handle, and annular sword is held with the right hand
Handle forms an angle, and described ligule sword front end and annular sword front end are formed necessarily under rat vertebral plate bone scissors off working state
Angle；It is identical with the contact surface of ligule sword that the outside of ligule sword and the inner side of annular sword are dull face and annular sword so that
During shearing, ligule sword coincide with annular sword.
The angle that aforementioned ligule sword front end and annular sword front end are formed under rat vertebral plate bone scissors off working state is preferred
0 ° to 30 °, during work, ligule sword does the circular motion of 0-30 ° around screw.
In order to avoid in shear history, the vertebral plate bits of output are fallen in spinal cord, thus infect spinal cord or make the group of vertebral plate
Knit block and remain in vertebral plate, cause the infection in vertebral plate, a groove, the so vertebra when shearing can be set at the medial surface of ligule sword
Plate bits can rest in groove.The periphery of groove is to be advisable near ligule sword periphery.The preferred oval-shaped groove of described groove.
In order to the function of rat vertebral plate bone scissors is better achieved, ligule sword, annular sword and ligule sword upper groove preferably with
Lower size: ligule tread 3mm, thick 0.5mm, the long 2mm of groove, wide 1.5mm, deep 0.5mm.Annular tread 4mm, internal diameter holds just
Laminating ligule sword is advisable.
As the improvement of the invention, the inner side of described hand holding handle lower end, left and right is also provided with limited block, described
Shell fragment and left and right hand holding handle between use limited block fix.This limited block protrudes from shell fragment surface, while fixation spring tab
Limit excessively bending and stretching of shell fragment.
Rat vertebral plate shear history is difficult to shine shearing position due to general extraneous light, so bad sight when shearing
Examine shearing position and control shear history, causing location inaccurate.The invention offer solution below: described annular
(LED and late release control circuit are preferably arranged with the form embedded to be provided with LED and late release control circuit on sword
On annular sword), this control circuit is normally open, the wire at its gap two ends, main line spacing with left and right hand holding handle respectively
Block connects, and realizes the Guan Bi of control circuit when limited block contacts.Thus can illuminate to sting when shearing and cut region.Postpone to close
Closing control circuit and make to shear complete and after unclamping left and right hand holding handle, LED still lights certain time automatic distinguishing again so that
Shear more convenient and energy-conserving and environment-protective.The time that LED is lighted is set as required by late release control circuit.
As a kind of preferred version, late release control circuit can realize with RC delay circuit, positive source and LED
Positive pole is connected, and LED negative pole is connected with the colelctor electrode of NPN audion, and the emitter stage of NPN audion is connected with the negative pole of power supply.
The base stage of NPN audion connects one end of resistance, and the other end of resistance draws two wires, and wherein one is just connecting electric capacity
Pole, another is connected to the limited block of left hand holding handle, and the negative pole of electric capacity connects the negative pole of power supply.The positive pole of power supply is connecting LED
It is also connected to while positive pole on the limited block of right hand holding handle.The time that LED is lighted can be by adjusting electric capacity and resistance
Size regulates.LED can connect one or more, if connecting multiple LED, multiple LED being together in series and being connected to
In control circuit.
In order to allow hand-held bone scissors time more firm and position more unified, the invention outside right hand holding handle on be provided with
Projection.
Wipe out method as the rat vertebral plate corresponding with rat vertebral plate bone scissors, comprise the following steps: anesthetized rat, Gu
Determining preserved skin, location intends hitting position, and routine cuts off rat dorsum skin and muscle, peels off muscle, expose vertebra, spinous process,
Intervertebral space, after stinging except spinous process, fully appears intervertebral space, is inverted by rat vertebral plate bone scissors and grips, inserts vertebra gently with ligule sword
The degree of depth that gap is suitable, during wherein inserting intervertebral space, ligule sword is with the horizontal 10 ° to 30 ° angles, and right hand holding handle is motionless, so
Holding with a firm grip left and right hand holding handle by certain power afterwards, left hand holding handle moves in a circle around screw so that annular sword and ligule sword Guan Bi
Vertebral plate is stung except in the lower end of the ligule sword i.e. groove of the upper end of laboratory animal horizontal plane, it is to avoid sting the vertebral plate removed and fall into simultaneously
Pulp cavity, affects experimental implementation, and now, the LED of annular sword upper end forms close access, illuminates the surgical field of view of surrounding, to stinging
Except position confirms, wipe ligule sword lower end with gauze and be snapped the vertebral plate except position.Repeat aforementioned operation, until being stung by vertebral plate
Except clean, abundant exposing spinal cord.
The invention has the advantage that with good effect:
(1) shearing dynamics is easily controlled.Left hand holding handle is directly connected by screw with right hand holding handle, and equipped with spring leaf and
Limited block, during occlusion, dynamics is controlled, and makes to sting and cuts action and can be repeatedly completed.
(2) shear direction, stress point are easily controlled.Owing to this device ligule sword front end is dull face, during use, it is inserted into phase
Intervertebral space in the middle of adjacent two vertebral plates, it is to avoid when inserting, spinal cord is pullled caused damage by sharp instrument.During occlusion vertebral plate, ligule
Sword is upwards taken exercises to remote myelofugal direction, presses close to annular sword, forms a snap-action, the most just make occlusion process
Away from spinal cord end, do not easily cause the damage of spinal cord.
(3) it is not easy to infect spinal cord, does not easily cause piece of tissue and remain in animal body.In the invention, on ligule sword
The groove arranged, due to the adsorption of the liquid in animal body, so that sting when using this device to shear rat vertebral plate
The vertebral plate chip removed adsorbs in groove, not easy infection spinal cord, does not easily cause piece of tissue and remains in animal body.
(4) it is easy to accurate positioning, it is to avoid cause the damage of manual operation: the LED that arranges in the invention and prolonging
Close later control circuit makes to sting cuts location more accurately, simultaneously facilitates the situation observing spinal cord, it is to avoid sting and cut deeply, excessive, keeps away
Exempt to sting and cut the improper of position and peripheral vessels is caused damage, cause bleeding, cause the error of operation technique so that spinal cord is made
The unnecessary damage that adult is.
Owing to there being above-mentioned advantage, so bone scissors shear history is fast and simple described in the invention, damage can be prevented effectively from
Hinder the blood vessel of spinal cord and periphery, rat will not be caused additional injuries, the experimental implementation time can be substantially reduced, reduce animal bleeds
Measure and damage and mortality rate, promote homogeneity and the stability of experimental implementation.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the overall schematic of the invention.
Fig. 2 is the lateral upward view of the cut part of the invention.
Fig. 3 is the lateral top view of the invention cut part.
Fig. 4 is the circuit diagram of LED late release control circuit.
Detailed description of the invention
The utility model will be further described below in conjunction with the accompanying drawings.
Rat vertebral plate bone scissors in the present embodiment include Handheld Division and cut part, described Handheld Division include left hand holding handle 1,
Right hand holding handle 2, the shell fragment 6 of the hand-held handle tail of the screw 5 connecting left and right hand holding handle and connection left and right.
Cut part includes ligule sword 3 and annular sword 4, and described ligule sword 3 is integral type structure with left hand holding handle 1, annular
Sword 4 and right hand holding handle 2 are integral type structure, and the two is hinged by branchia shaft screw 5.
Ligule sword 3 is flat tongue structure, and ligule sword 3 becomes 80 ° of angles, annular sword 4 and right hand holding handle 2 with left hand holding handle 1
Become the angle that 100 ° of angles, ligule sword 3 front end and annular sword 4 front end form 30 ° under rat vertebral plate bone scissors off working state；Tongue
It is identical with the contact surface of ligule sword 3 that the outside of shape sword 3 and the inner side of annular sword 4 are dull face and annular sword 4 so that when shearing
Ligule sword 3 coincide with annular sword 4, and when i.e. working, ligule sword 3 does the circular motion of 30 ° to complete shear history around branchia shaft screw 5.
The medial surface of ligule sword 3 is provided with a groove 31, and so when shearing, vertebral plate bits can rest in oval-shaped groove 31.Groove 31
Periphery to be advisable near ligule sword 3 periphery.In order to the function of rat vertebral plate bone scissors is better achieved, ligule sword 3, annular sword
4 and the size of ligule sword 3 upper groove 31 as follows: the wide 3mm of ligule sword 3, thick 0.5mm, the long 2mm of groove 31, wide 1.5mm, deep
0.5mm.The wide 4mm of annular sword 4, internal diameter just holds laminating ligule sword 3 and is advisable.
The inner side of left hand holding handle 1 and right hand holding handle 2 lower end is provided with limited block 7, uses limit between shell fragment 6 and left and right hand holding handle
Position block 7 is fixed.This limited block 7 protrudes from shell fragment 6 surface, limits excessively bending and stretching of shell fragment 6 while fixation spring tab 67.
Observe shearing position to shear fashion and control shear history, in order to positioning and shear accurately.The invention
In, annular sword 4 front end is provided with LED and late release control circuit, and (this late release control circuit is embedded in annular sword 4
On), this control circuit is normally open, and the wire at its gap two ends, main line is respectively with the limited block 7 on the hand holding handle of left and right even
Connect, control closing of circuit when limited block 7 contacts.Thus can illuminate to sting when shearing and cut region.Late release controls
Circuit makes to shear complete and after unclamping left and right hand holding handle, and LED still lights certain time automatic distinguishing again so that shear more
Convenient also energy-conserving and environment-protective.The time that LED is lighted is set as required by late release control circuit.
In the present embodiment, late release control circuit RC delay circuit realizes, power supply 81 positive pole and the positive pole of LED 82
Being connected, the negative pole of LED 82 is connected with the positive pole of LED 83, and the negative pole of LED 83 is connected with the colelctor electrode of NPN audion 84,
The emitter stage of NPN audion 84 is connected with the negative pole of power supply 81.The base stage of NPN audion 84 connects one end of resistance 85, resistance
The other end of 85 draws two wires, wherein a positive pole connecting electric capacity 86, and another is connected to the limited block of left hand holding handle 1
7, the negative pole of electric capacity 86 connects the negative pole of power supply 81.The positive pole of power supply 81 is also connected to the right hand while connecting LED82 positive pole
Hold on the limited block 7 of handle 2.The time that LED 8 and LED 9 are lighted can be adjusted by the size adjusting electric capacity 86 and resistance 85
Joint.
In order to allow hand-held bone scissors time more firm and position more unified, the invention outside right hand holding handle 2 on arrange
Projection 21.
When practical operation, anesthetized rat, fixing preserved skin, location intends hitting position, routine cut off rat dorsum skin with
And muscle, peel off muscle, expose vertebra, spinous process, intervertebral space, after stinging except spinous process, fully appear intervertebral space, this device is inverted
Grip, insert the degree of depth that intervertebral space is suitable with ligule sword 3 gently, wherein during insertion intervertebral space ligule sword 3 with the horizontal
10 ° to 30 ° angles, right hand holding handle 2 is motionless, then holds with a firm grip left and right hand holding handle by certain power, and left hand holding handle 1 does around branchia shaft screw 5
Circular motion so that vertebral plate is stung while closing with ligule sword 3 except the i.e. laboratory animal level in the lower end of ligule sword by annular sword 4
In the groove 31 of the upper end in face, it is to avoid sting the vertebral plate removed and fall into pulp cavity, affect experimental implementation, now, the LED of annular sword 4 upper end
Lamp forms close access, illuminates the surgical field of view of surrounding, to stinging except position confirms, wipes ligule sword 3 lower end quilt with gauze
Sting the vertebral plate except position.Repeat aforementioned operation, until vertebral plate being stung except clean, abundant exposing spinal cord.
Parameter in above-described embodiment is simply to illustrate that problem, as long as being capable of the purpose that accurate stable is sheared, then
Even if this parameter is transformed, it also it is the protection domain of the invention.
In the present embodiment, late release control circuit is in addition to realizing with RC delay circuit, it is also possible to take other time delays
Circuit realiration, uses other delay circuits to realize LED time-delay closing effect, is also the protection domain of the invention.
Obviously, the above-mentioned description to detailed description of the invention, its purpose be for clearly demonstrating problem, the most each specifically
Details be all necessary.Detailed description of the invention is also simply to illustrate that the main principle of the invention, therefore to above-mentioned reality
Amendment and the modification of executing mode are all to allow.
Claims (9)
1. a rat vertebral plate bone scissors, including Handheld Division and cut part, it is characterised in that:
Described Handheld Division includes left hand holding handle, right hand holding handle, the screw of connection left and right hand holding handle and connects the hand-held handle tail in left and right
Shell fragment；
Described cut part includes ligule sword and annular sword, and described ligule sword and left hand holding handle are integral type structure, annular sword
Being integral type structure with right hand holding handle, the two is hinged by screw；
Described ligule sword is flat tongue structure, and ligule sword forms an angle with left hand holding handle, annular sword and right hand holding handle
Forming an angle, described ligule sword front end and annular sword front end are formed certain under rat vertebral plate bone scissors off working state
Angle；
It is identical with the contact surface of ligule sword that the outside of described ligule sword and the inner side of annular sword are dull face and annular sword so that
When shearing, ligule sword coincide with annular sword.
Rat vertebral plate bone scissors the most according to claim 1, it is characterised in that: the medial surface of described ligule sword front end sets
There is a groove.
Rat vertebral plate bone scissors the most according to claim 2, it is characterised in that: described groove is oval-shaped groove.
Rat vertebral plate bone scissors the most according to claim 1, it is characterised in that: the inner side of described hand holding handle lower end, left and right
It is additionally provided with limited block, between described shell fragment and left and right hand holding handle, uses limited block to fix.
Rat vertebral plate bone scissors the most according to claim 4, it is characterised in that: it is provided with LED on described annular sword
And late release control circuit, this control circuit is normally open, and the wire at its gap two ends, main line is hand-held with left and right respectively
The limited block of handle connects, and controls closing of circuit when limited block contacts.
Rat vertebral plate bone scissors the most according to claim 1, it is characterised in that: described screw is branchia shaft screw.
Rat vertebral plate bone scissors the most according to claim 2, it is characterised in that: ligule tread 3mm, thick 0.5mm, groove is long
2mm, wide 1.5mm, deep 0.5mm, annular tread 4mm.
Rat vertebral plate bone scissors the most according to claim 1, it is characterised in that: it is provided with outside described right hand holding handle
Projection.
Rat vertebral plate bone scissors the most according to claim 1, it is characterised in that: described ligule sword front end and annular sword front end
The angle formed under rat vertebral plate bone scissors off working state is 0 ° to 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620429969.5U CN205814469U (en) | 2016-05-12 | 2016-05-12 | Rat vertebral plate bone scissors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620429969.5U CN205814469U (en) | 2016-05-12 | 2016-05-12 | Rat vertebral plate bone scissors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205814469U true CN205814469U (en) | 2016-12-21 |
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ID=58148744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620429969.5U Expired - Fee Related CN205814469U (en) | 2016-05-12 | 2016-05-12 | Rat vertebral plate bone scissors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205814469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105853013A (en) * | 2016-05-12 | 2016-08-17 | 王业杨 | Rat vertebral plate bone scissors and rat vertebral plate cut-out method adopting same |
-
2016
- 2016-05-12 CN CN201620429969.5U patent/CN205814469U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105853013A (en) * | 2016-05-12 | 2016-08-17 | 王业杨 | Rat vertebral plate bone scissors and rat vertebral plate cut-out method adopting same |
| CN105853013B (en) * | 2016-05-12 | 2017-10-17 | 王业杨 | Rat vertebral plate bone scissors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20170512 |
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| CF01 | Termination of patent right due to non-payment of annual fee |