CN105853013B - Rat vertebral plate bone scissors - Google Patents
Rat vertebral plate bone scissors Download PDFInfo
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- CN105853013B CN105853013B CN201610313798.4A CN201610313798A CN105853013B CN 105853013 B CN105853013 B CN 105853013B CN 201610313798 A CN201610313798 A CN 201610313798A CN 105853013 B CN105853013 B CN 105853013B
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- sword
- ligule
- vertebral plate
- hand holding
- holding handle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
Abstract
The invention 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 the shell fragment for connecting the hand-held handle tail in left and right；Cut part includes ligule sword and annular sword, and ligule sword is integral type structure with left hand holding handle, 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；The outside of ligule sword is with being that the contact surface of dull face and annular sword and ligule sword coincide on the inside of annular sword so that in shearing, ligule sword coincide with annular sword.The dynamics of shearing, direction, stress point can be effectively controlled using the rat vertebral plate method of wiping out of the rat vertebral plate bone scissors, accurate positioning and easy infection marrow is not allowed, shear history is fast and simple.
Description
Technical field
The invention is related to a kind of rat vertebral plate bone scissors, and the device can be used for stinging except the vertebral plate of rat spinal cord periphery,
In order to make the spinal cord beating wound model of rat.
The invention further relates to a kind of rat vertebral plate for using above-mentioned rat vertebral plate bone scissors and wipes out method.
Background technology
Spinal cord injury is still the problem that International Medical one is difficult to capture at this stage, and the treatment of spinal cord injury has become heat
The research field of door, substantial amounts of researcher is put into a series of researchs of spinal cord injury.And animal spinal cord damage model
It is then the important tool for studying spinal cord injury.In current animal spinal cord damage model using it is most be that mould is hindered in the strike of rat
Type, because of Spinal compression caused by it can more effectively simulate the eminence degeneration in human diseases and the ridge after blow-out fracture
Marrow is damaged.But in the manufacturing process of the model, on the premise of artificially spinal cord is not damaged, stinging for vertebral plate removes an often disaster
Topic.
More conventional at present stings except the method for vertebral plate is mainly used for zoopery not using Wen's pincers, haemostatic clamp etc. are relative
It is very professional equipment, allows one end of clamp head part to insert intervertenral space and then sting except vertebral plate, so as to reaches exposing spinal cord, make model
Purpose.But using it is such be originally the instrument on the person to sting except rat vertebral plate when, often undue force and cause
The residual infection that spinal cord injury, animal are bled profusely with vertebral plate bits.
Such a rat vertebral plate bone scissors is disclosed in the utility model patent of Patent No. 201420699224.1, it
Cut part have rotate connection left arm and right arm, wherein, the front end of left arm is bent to form downwards the first of predetermined angular and cut
Portion is cut, vertebral foramen can be stretched into from intervertenral space, the first cut part, which has, cuts tooth, the length that tooth covered is cut 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
Tooth is cut with corresponding with the first cut part.The rat vertebral plate bone scissors has the following disadvantages：
(1) shearing dynamics is difficult to control to.Due in the bone scissors, when two cut parts are mutually moved in addition to the active force of people
External force is not balanced, so in the case of manual operation, being very easy to overexert and causing spinal cord injury.
(2) shear direction is difficult to control to.The bone scissors is in shearing, and intervertenral space is stretched into the first cut part, then two shearings
Portion is acted on to vertebral plate simultaneously, due to being manual operation, is at this moment just very easy to cause total power thrusts inwardly (i.e. ridge
Marrow direction), the spinal cord of fragility will be so damaged at once.
(3) shearing stress point is difficult to control to.In the bone scissors, due to two cut parts be all it is elongated, shearing when even
It is the not effective stress point or the strong point for not easily causing spinal cord injury before preparation shearing, it has not been convenient to shear and easily make
Into spinal cord injury.
(4) spinal cord is easily infected.Because two cut parts are all elongated and without the effective precautionary measures in the bone scissors,
So the vertebral plate bits of output may be fallen into vertebral plate in shear history, so as to infect spinal cord.
(5) position inaccurate.Because general extraneous light is difficult to shine shearing position, institute in rat vertebral plate shear history
Bad observation shearing position and control shear history, cause positioning inaccurate during shearing.
Even disadvantages described above causes technology skilled scientific research personnel relatively, spinal cord can be also damaged to unavoidably, in addition it is related
Blood vessel, cause the damage in advance and the rupture of endorchis of spinal cord, this stability to experimental data constitutes most important
Influence, the inhomogeneity of experimental group degrees of spinal cord injury is directly resulted in, so as to cause the deviation in experimental data, it is impossible to
To satisfied Expected Results.
The content of the invention
The invention technical problem to be solved be to provide can effectively control shearing dynamics, shear direction, shearing by
Force, the rat vertebral plate bone scissors be easy to positioning and do not easily cause spinal cord infection and the rat using the rat vertebral plate bone scissors
Vertebral plate wipes out method.The bone scissors shear history is fast and simple, can be prevented effectively from damage spinal cord, and extra damage will not be caused to rat
Wound, can substantially reduce experimental implementation time and mortality of animals, lift the homogeneity and stability of experimental implementation.
To achieve the above object, the basic conception of the invention is：Including Handheld Division and cut part, wherein：
The Handheld Division includes left hand holding handle, right hand holding handle, the screw of connection left and right hand holding handle and connection 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 is integral type structure with right hand holding handle, and the two is hinged by screw, the preferred branchia shaft screw of described screw.
The ligule sword is flat tongue structure, and ligule sword is formed an angle with left hand holding handle, and annular sword is held with the right hand
Handle is formed 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；The outside of ligule sword is with being that the contact surface of dull face and annular sword and ligule sword coincide on the inside of annular sword so that
Ligule sword coincide with annular sword during shearing.
The angle that foregoing 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 °, ligule sword does 0-30 ° of circular motion around screw during work.
In order to avoid the vertebral plate bits of output in shear history are fallen into spinal cord, so as to infect spinal cord or cause the group of vertebral plate
Knit block to remain in vertebral plate, cause the infection in vertebral plate, a groove can be set in the medial surface of ligule sword, the vertebra so in shearing
Plate bits can be rested in groove.The periphery of groove is advisable with close ligule sword periphery.The preferred oval-shaped groove of described groove.
In order to be better achieved the function of rat vertebral plate bone scissors, ligule sword, annular sword and ligule sword upper groove preferably with
Lower size:Ligule tread 3mm, thickness 0.5mm, the long 2mm of groove, width 1.5mm, depth 0.5mm.Annular tread 4mm, internal diameter is wrapped just
Laminating ligule sword is advisable.
As the improvement of the invention, limited block is also provided with the inside of described left and right hand holding handle lower end, it is described
Shell fragment and left and right hand holding handle between fixed using limited block.The limited block protrudes from shell fragment surface, while fixation spring tab
Limit excessively bending and stretching for shell fragment.
Because general extraneous light is difficult to shine shearing position in rat vertebral plate shear history, so bad during shearing see
Shearing position and control shear history are examined, causes positioning inaccurate.The invention provides solution below：Described annular
There is provided LED and late release control circuit, (LED and late release control circuit are preferably set in embedded form on sword
On annular sword), this controls circuit to be normally open, and the wire at its main line gap two ends is spacing with left and right hand holding handle respectively
Block is connected, and the closure of control circuit is realized when limited block is contacted.It thus can illuminate to sting in shearing and cut region.Delay is closed
Control circuit is closed so that shearing is finished and unclamped after the hand holding handle of left and right, LED still lights certain time automatic distinguishing again so that
The more convenient simultaneously energy-conserving and environment-protective of shearing.The time that LED is lighted is set as needed by late release control circuit.
As a kind of preferred scheme, late release control circuit can be realized with RC delay circuits, positive source and LED
Positive pole is connected, and LED negative pole is connected with the colelctor electrode of NPN triode, and the emitter stage of NPN triode is connected with the negative pole of power supply.
The base stage of NPN triode connects one end of resistance, and the other end of resistance draws two wires, wherein a connection electric capacity is just
Pole, another be connected to left hand holding handle limited block, the negative pole of electric capacity connects the negative pole of power supply.The positive pole of power supply is in connection LED
On the limited block that right hand holding handle is also connected to while positive pole.The time that LED is lighted can be by adjusting electric capacity and resistance
Size is adjusted.LED can connect one or more, and multiple LEDs, which are together in series, if multiple LEDs are connected is connected to
Control on circuit.
In order to allow hand-held bone scissors when more firm and position it is more unified, the invention on the outside of the right hand holding handle on be provided with
Projection.
Method is wiped out as the rat vertebral plate corresponding with rat vertebral plate bone scissors, is comprised the following steps：Anesthetized rat, Gu
Determine preserved skin, strike position is intended in positioning, routinely cuts off rat dorsum skin and muscle, peels off muscle, expose vertebra, spinous process,
Intervertenral space, stings except after spinous process, intervertenral space is fully appeared, rat vertebral plate bone scissors is inverted and gripped, vertebra is gently inserted with ligule sword
The appropriate depth in gap, wherein ligule sword is with the horizontal 10 ° to 30 ° angles during insertion intervertenral space, right hand holding handle is motionless, so
Held with a firm grip afterwards with certain power left and right hand holding handle, left hand holding handle moves in a circle around screw so that annular sword is closed with ligule sword
Vertebral plate is stung except in the lower end of ligule the sword i.e. groove of the upper end of experimental animal horizontal plane simultaneously, it is to avoid sting the vertebral plate removed and fall into
Pulp cavity, influences experimental implementation, now, the LED formation close access of annular sword upper end, the surgical field of view of surrounding is illuminated, to stinging
Except position is confirmed, ligule sword lower end is wiped with gauze and is snapped the vertebral plate for removing position.Aforementioned operation is repeated, until vertebral plate is stung
Except clean, abundant exposing spinal cord.
The invention has the advantages and positive effects of：
(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 is allow to sting and is cut action and be repeatedly completed.
(2) shear direction, stress point are easily controlled.Because the device ligule sword front end is dull face, in use, being inserted into phase
Intervertenral space in the middle of adjacent two vertebral plates, it is to avoid sharp instrument to spinal cord pulls caused damage during insertion.When being engaged vertebral plate, ligule
Sword is taken exercises to remote myelofugal direction upwards, is pressed close to annular sword, is formed a snap-action, so just causes occlusion process
Away from spinal cord end, the damage of spinal cord is not easily caused.
(3) do not allow easy infection spinal cord, tissue block residual is not easily caused in animal body.In the invention, on ligule sword
The groove of setting, due to the suction-operated of the liquid in animal body, can to sting when shearing rat vertebral plate using the device
The vertebral plate chip removed is adsorbed into groove, not easy infection spinal cord, and tissue block residual is not easily caused in animal body.
(4) it is easy to accurate positioning, it is to avoid cause the damage of manual operation：The LED that is set in the invention and its prolong
Close later control circuit to sting cut positioning it is more accurate, while be easy to observe spinal cord situation, it is to avoid sting and cut too deep, it is excessive, keep 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
It is grown up the unnecessary damage for being.
Due to there is above-mentioned advantage, so bone scissors shear history is fast and simple described in the invention, damage can be prevented effectively from
Hinder spinal cord and the blood vessel on periphery, additional injuries will not be caused to rat, the experimental implementation time can be substantially reduced, animal bleeds are reduced
Amount and damage and the death rate, lift the homogeneity and stability of experimental implementation.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
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 that LED late release controls circuit.
Embodiment
The utility model will be further described below in conjunction with the accompanying drawings.
Rat vertebral plate bone scissors in the present embodiment includes Handheld Division and cut part, the Handheld Division include left hand holding handle 1,
Right hand holding handle 2, the screw 5 for connecting left and right hand holding handle and the shell fragment 6 for connecting the hand-held handle tail in left and right.
Cut part includes ligule sword 3 and annular sword 4, and described ligule sword 3 and left hand holding handle 1 are integral type structure, annular
Sword 4 is integral type structure with right hand holding handle 2, and the two is hinged by branchia shaft screw 5.
Ligule sword 3 is flat tongue structure, and ligule sword 3 and left hand holding handle 1 are into 80 ° of angles, annular sword 4 and right hand holding handle 2
Into 100 ° of angles, the front end of ligule sword 3 forms 30 ° of angle with the annular front end of sword 4 under rat vertebral plate bone scissors off working state；Tongue
The outside of shape sword 3 and the inner side of annular sword 4 are that the contact surface of dull face and annular sword 4 and ligule sword 3 coincide so that in shearing
Ligule sword 3 coincide with annular sword 4, that is, ligule sword 3 does 30 ° of circular motion to complete shear history around branchia shaft screw 5 when working.
The medial surface of ligule sword 3 is provided with a groove 31, and so in shearing, vertebral plate bits can be rested in oval-shaped groove 31.Groove 31
Periphery to be advisable close to the periphery of ligule sword 3.In order to which the function of rat vertebral plate bone scissors, ligule sword 3, annular sword is better achieved
4 and the upper groove 31 of ligule sword 3 size it is as follows:The width of ligule sword 3 3mm, thickness 0.5mm, the long 2mm of groove 31, width 1.5mm, depth
0.5mm.The annular width of sword 4 4mm, internal diameter wraps laminating ligule sword 3 and is advisable just.
The inner side of left hand holding handle 1 and right hand holding handle 2 lower end is provided with limited block 7, using limit between shell fragment 6 and left and right hand holding handle
Position block 7 is fixed.The limited block 7 protrudes from the surface of shell fragment 6, and excessively bending and stretching for shell fragment 6 is limited while fixation spring tab 67.
Shearing position and control shear history are observed during in order to shear well, it is accurate to position and to shear.The invention
In, there is provided LED and late release control circuit, (late release control circuit is embedded in annular sword 4 on the annular front end of sword 4
On), this controls circuit to be normally open, and the wire at its main line gap two ends connects with the limited block 7 on the hand holding handle of left and right respectively
Connect, closing of circuit is controlled when limited block 7 is contacted.It thus can illuminate to sting in shearing and cut region.Late release is controlled
Circuit causes shearing to finish and unclamp after the hand holding handle of left and right, and LED still lights certain time automatic distinguishing again so that shearing is more
Convenient and energy-conserving and environment-protective.The time that LED is lighted is set as needed by late release control circuit.
In the present embodiment, late release controls circuit to be realized with RC delay circuits, the positive pole of power supply 81 and the positive pole of LED 82
It is 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 triode 84,
The emitter stage of NPN triode 84 is connected with the negative pole of power supply 81.The base stage of NPN triode 84 connects one end of resistance 85, resistance
85 other end draws two wires, wherein the positive pole of a connection electric capacity 86, another be connected to left hand holding handle 1 limited block
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 LED82 positive poles are connected
Hold on the limited block 7 of handle 2.The time that LED 8 and LED 9 are lighted can be adjusted by adjusting the size of electric capacity 86 and resistance 85
Section.
In order to allow hand-held bone scissors when more firm and position it is more unified, the invention is set on the right outside of hand holding handle 2
Projection 21.
In practical operation, strike position is intended in anesthetized rat, fixed preserved skin, positioning, routinely cut off rat dorsum skin with
And muscle, muscle is peeled off, vertebra, spinous process, intervertenral space is exposed, stings except after spinous process, intervertenral space is fully appeared, the present apparatus is inverted
Grip, gently insert the appropriate depth of intervertenral space with ligule sword 3, wherein insert intervertenral space during ligule sword 3 with the horizontal
10 ° to 30 ° angles, right hand holding handle 2 is motionless, and left and right hand holding handle of then being held with a firm grip with certain power, left hand holding handle 1 is done around branchia shaft screw 5
Circular motion so that sting vertebral plate except in the lower end of ligule sword i.e. experimental animal level while annular sword 4 is closed with ligule sword 3
In the groove 31 of the upper end in face, it is to avoid sting the vertebral plate removed and fall into pulp cavity, influence experimental implementation, now, the LED of the annular upper end of sword 4
Lamp formation close access, illuminates the surgical field of view of surrounding, to stinging except position confirms, the lower end quilt of ligule sword 3 is wiped with gauze
Sting the vertebral plate except position.Aforementioned operation is repeated, until vertebral plate is stung except clean, abundant exposing spinal cord.
Parameter in above-described embodiment is simply to illustrate that problem, as long as the purpose of accurate stable shearing can be realized, then
It is also the protection domain of the invention even if the parameter is transformed.
In the present embodiment, late release controls circuit in addition to being realized with RC delay circuits, other can also be taken to be delayed
Circuit realiration, realizes the effect of LED time-delay closing using other delay circuits, is also the protection domain of the invention.
Obviously, the above-mentioned description to embodiment, its purpose is only intended to clearly illustrate problem, not each specific
Details be all necessary.Embodiment is also simply to illustrate that the main principle of the invention, therefore to above-mentioned reality
Applying the modifications and variations of mode is all allowed.
Claims (9)
1. a kind of rat vertebral plate bone scissors, including Handheld Division and cut part, it is characterised in that：
The Handheld Division includes left hand holding handle, right hand holding handle, the screw of connection left and right hand holding handle and the connection 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
It is 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
Form an angle, described ligule sword front end and annular sword front end are formed necessarily under rat vertebral plate bone scissors off working state
Angle；
The outside of described ligule sword is with being the contact surface on the inside of dull face and annular sword and on the outside of ligule sword on the inside of annular sword
It coincide so that in shearing, ligule sword coincide with annular sword.
2. rat vertebral plate bone scissors according to claim 1, it is characterised in that：The medial surface of described ligule sword front end is set
There is a groove.
3. rat vertebral plate bone scissors according to claim 2, it is characterised in that：Described groove is oval-shaped groove.
4. rat vertebral plate bone scissors according to claim 1, it is characterised in that：The inner side of described left and right hand holding handle lower end
Limited block is additionally provided with, is fixed between described shell fragment and left and right hand holding handle using limited block.
5. the rat vertebral plate bone scissors according to claim 1 or 4, it is characterised in that：LED is provided with described annular sword
Lamp and late release control circuit, it is normally open that this, which controls circuit, the wire at its main line gap two ends respectively with right-hand man
The limited block connection of handle is held, closing of circuit is controlled when limited block is contacted.
6. rat vertebral plate bone scissors according to claim 1, it is characterised in that：Described screw is branchia shaft screw.
7. rat vertebral plate bone scissors according to claim 1 or 2, it is characterised in that：Ligule tread 3mm, thickness 0.5mm, it is recessed
Flute length 2mm, width 1.5mm, depth 0.5mm, annular tread 4mm.
8. rat vertebral plate bone scissors according to claim 1, it is characterised in that：It is provided with the outside of described right hand holding handle
Projection.
9. rat vertebral plate bone scissors according to claim 1, it is characterised in that：The 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 |
|---|---|---|---|
| CN201610313798.4A CN105853013B (en) | 2016-05-12 | 2016-05-12 | Rat vertebral plate bone scissors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313798.4A CN105853013B (en) | 2016-05-12 | 2016-05-12 | Rat vertebral plate bone scissors |
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| Publication Number | Publication Date |
|---|---|
| CN105853013A CN105853013A (en) | 2016-08-17 |
| CN105853013B true CN105853013B (en) | 2017-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610313798.4A Active CN105853013B (en) | 2016-05-12 | 2016-05-12 | Rat vertebral plate bone scissors |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877145A (en) * | 1973-12-18 | 1975-04-15 | Bertrand J Andrews | Scissors for surgical and other uses |
| US5447515A (en) * | 1994-02-08 | 1995-09-05 | Pilling Co. | Coronary bypass clamp |
| CN2735937Y (en) * | 2004-08-20 | 2005-10-26 | 黄楹 | Bone rongeur of sphenoidal sinus |
| CN202060833U (en) * | 2010-10-27 | 2011-12-07 | 李俊杰 | Pincers for taking out ear cartilage |
| CN202409050U (en) * | 2012-01-06 | 2012-09-05 | 姜朝栋 | Multifunctional surgical scissors |
| CN103565494A (en) * | 2013-11-19 | 2014-02-12 | 中国人民解放军第三军医大学第二附属医院 | Bone rongeur for operation |
| CN204233241U (en) * | 2014-11-20 | 2015-04-01 | 张超 | Rat vertebral plate bone scissors |
| CN205814469U (en) * | 2016-05-12 | 2016-12-21 | 王业杨 | Rat vertebral plate bone scissors |
-
2016
- 2016-05-12 CN CN201610313798.4A patent/CN105853013B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877145A (en) * | 1973-12-18 | 1975-04-15 | Bertrand J Andrews | Scissors for surgical and other uses |
| US5447515A (en) * | 1994-02-08 | 1995-09-05 | Pilling Co. | Coronary bypass clamp |
| CN2735937Y (en) * | 2004-08-20 | 2005-10-26 | 黄楹 | Bone rongeur of sphenoidal sinus |
| CN202060833U (en) * | 2010-10-27 | 2011-12-07 | 李俊杰 | Pincers for taking out ear cartilage |
| CN202409050U (en) * | 2012-01-06 | 2012-09-05 | 姜朝栋 | Multifunctional surgical scissors |
| CN103565494A (en) * | 2013-11-19 | 2014-02-12 | 中国人民解放军第三军医大学第二附属医院 | Bone rongeur for operation |
| CN204233241U (en) * | 2014-11-20 | 2015-04-01 | 张超 | Rat vertebral plate bone scissors |
| CN205814469U (en) * | 2016-05-12 | 2016-12-21 | 王业杨 | Rat vertebral plate bone scissors |
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| Publication number | Publication date |
|---|---|
| CN105853013A (en) | 2016-08-17 |
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