CN107595377A - The spacing regulator of percutaneous cervical arc root screw - Google Patents
The spacing regulator of percutaneous cervical arc root screw Download PDFInfo
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- CN107595377A CN107595377A CN201710818741.4A CN201710818741A CN107595377A CN 107595377 A CN107595377 A CN 107595377A CN 201710818741 A CN201710818741 A CN 201710818741A CN 107595377 A CN107595377 A CN 107595377A
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- 238000010276 construction Methods 0.000 claims abstract description 74
- 210000000080 chela (arthropods) Anatomy 0.000 claims abstract description 9
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000001356 surgical procedure Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The invention discloses a kind of spacing regulator of percutaneous cervical arc root screw, including：Force pincers component, the force pincers component are provided with connection end and the handle arrangement for closing up or opening for drive connection end；And two compress component, two compress component and are corresponded respectively with two connection ends, compressing component includes the first press part, first connecting rod part, second connecting rod part and third connecting rod part, one end of first press part sets jaw, the other end is fixedly connected with one end of first connecting rod part, the other end of first connecting rod part is rotatablely connected with one end of second connecting rod part, and it is provided with the first tight lock construction, the other end of second connecting rod part is rotatablely connected with one end of third connecting rod part, and it is provided with the second tight lock construction, the other end of third connecting rod part is rotatablely connected with connection end, and it is provided with the 3rd tight lock construction.The spacing regulator of the percutaneous cervical arc root screw can be reliable and stable two pedicle screws of adjustment between spacing, being easy to tighten screw fixes pitman and pedicle screw.
Description
Technical field
The present invention relates to technical field of medical instruments, and dress is adjusted more particularly to a kind of spacing of percutaneous cervical arc root screw
Put.
Background technology
Minimally invasive spine surgical flow：Pedicle screw → insertion pitman is squeezed into pedicle screw tail cap → to pedicle of vertebral arch
Screw enters line space and adjusts → be screwed into tight lock screw, makes the locking of pitman and pedicle screw, completes between pedicle screw
Spacing fix.
Because pedicle locations and are random in three dimensions not in same straight line, same plane between each vertebra
Distribution, therefore the position between the tail cap of two pedicle screws for having squeezed into backbone is not concordant.And current clinical surgery operation
The middle traditional dilator used is only capable of meeting the angular adjustment problem in a plane, can not meet the angle in other planes
Regulation.When being adjusted using traditional dilator to the spacing between adjacent pedicle screw, what adjacent pedicle of vertebral arch screw nailed on
The bad unification of force application location, it is higher to surgical operation technical requirements, add operating difficulty.
The content of the invention
Based on this, it is necessary to provide a kind of spacing regulator of percutaneous cervical arc root screw, adjustment that can be reliable and stable
Spacing between two pedicle screws, being easy to tighten tightly lock screw fixes pitman and pedicle screw, reduces to doctor
Surgical technique requires to rely on, and reduces operating difficulty.
Its technical scheme is as follows：
A kind of spacing regulator of percutaneous cervical arc root screw, including：Force pincers component, the force pincers component are provided with two
Individual relatively-movable connection end and the handle arrangement for driving two connection ends to close up or open；And two compress group
Part, component is compressed described in two and is corresponded respectively with two connection ends, the component that compresses includes the first press part, the
One link member, second connecting rod part and third connecting rod part, one end of first press part set jaw, the other end and the described first company
One end connection of rod member, one end rotation connection of the other end of the first connecting rod part and the second connecting rod part and provided with the
One tight lock construction, one end rotation connection of the other end of the second connecting rod part and the third connecting rod part and tight provided with second
Lock construction, the other end of the third connecting rod part are rotatablely connected with the connection end and are provided with the 3rd tight lock construction；When first tight
When lock construction unclamps, the first connecting rod part can rotate around first axle；When the described second tight lock construction locking, described first
Link member is fixed with the second connecting rod part；When the second tight lock construction unclamps, the second connecting rod part can turn around second axis
It is dynamic；When the described second tight lock construction locking, the second connecting rod part is fixed with the third connecting rod part；When the 3rd tight lock construction
During release, the third connecting rod part can rotate around the 3rd axis；When the described 3rd tight lock construction locking, the third connecting rod part
Fixed with the connection end；Wherein, it is mutually perpendicular to two-by-two between the first axle, the second axis and the 3rd axis
Or near normal.
In spinal orthopedic surgery operation, the vertebra of lateral bending is supportted when needing to use pedicle screw and pitman
When opening, extruding, first pedicle screw can be squeezed into backbone, while pitman is arranged to the tail cap of two pedicle screws
On；Then the spacing regulator of percutaneous cervical arc root screw is utilized, respectively by two the first press parts for compressing component corresponding one
Individual pedicle screw, now the first tight lock construction, the second tight lock construction and the 3rd tight lock construction unclamp, by along three dimensions
(first axle, second axis and the 3rd axis) adjusts the jaw of the first press part, it is compressed with corresponding pitman and vertebra
Pedicle screw compresses, and then tightens the first tight lock construction, the second tight lock construction and the 3rd tight lock construction respectively, makes first connecting rod part
Fixed with the second connecting rod part, second connecting rod part and the third connecting rod part are fixed, the third connecting rod part and the connection
End is fixed；Opened finally by handle arrangement drive connection end and then strut the spacing between two pedicle screws, or passed through
The spacing that handle arrangement drive connection end closes up and then closed up between two pedicle screws, by adjusting pedicle screw
Spacing adjusts the distance of vertebral arch between vertebra, meets that operation requires distance, tightens tight lock screw finally by bottle opener, make two vertebras
Pedicle screw is fixed with pitman, and then between fixed vertebra the distance of vertebral arch effect.Above-mentioned percutaneous cervical arc root screw
Spacing regulator, the jaw position of the first press part can be adjusted according to the position of pedicle screw, after adjusting again
Fixed, driving handle is strutted or closed up, and is easy to exert a force, and is made the spacing adjustment of pedicle screw reliable and stable, is easy to tighten
Tight lock screw fixes pitman and pedicle screw, reduces and surgical operation technical requirements are relied on, it is difficult to reduce operation
Degree.
Technical scheme is illustrated further below：
In one of the embodiments, the cylindrical structure of first press part and provided with through its both ends first
Through hole, the side wall of first press part are provided with two stopper slots being oppositely arranged, the stopper slot coordinate with pitman gap and
The madial wall of the stopper slot and the tail cap of pedicle screw compress cooperation, and two stopper slots complement each other to form the pincers
Mouthful.Because of the cylindrical structure of the first press part and provided with being easy to the interspersed first through hole of bottle opener, while using the of cylindrical shape
Set two stopper slots to form jaw on one press part, and then pedicle screw can be inserted in first through hole and then utilized
The madial wall of two stopper slots compresses the tail cap of pedicle screw, it is possible to achieve struts and extruding action, the stopper slot may be used also
Inserted for pitman, avoid the interference effect because of pitman, cause the first press part can not be compressed with the tail cap of pedicle screw
Coordinate.
In one of the embodiments, the lateral wall of first press part is provided with along the axis side of first press part
To and with the spaced auxiliary positioning groove of stopper slot, the center line of the auxiliary positioning groove with the stopper slot
Heart line on the same line and the auxiliary positioning groove width be equal to the stopper slot width.And then utilize auxiliary positioning
Groove comes the position of auxiliary positioning stopper slot, is easy to doctor to judge clip slot position, preferably implements related surgical operation, simultaneously
The setting of the auxiliary positioning groove can mitigate the weight of the first press part, make the spacing regulator of operation percutaneous cervical arc root screw
During adjusting the spacing between two pedicle screws, more steadily, success rate of operation is improved.
In one of the embodiments, the detachable company of rotation of the other end of first press part and the first connecting rod part
Connect, the first connecting rod part is provided with second through hole corresponding with the first through hole.And then can be according to being actually needed replacing
One press part is to adapt to different operation demands.
In one of the embodiments, the other end of the first connecting rod part is provided with the first mounting hole and at least two along institute
Outer circumferentially spaced first connecting hole of the first mounting hole is stated, one end of the second connecting rod part is provided with to be connected with described first
The first clip slot that the other end of extension bar is rotatably assorted, the first rotating shaft for being fixedly arranged on the first clip slot inwall and the first fastening
Part, the first rotating shaft are rotatably assorted with first mounting hole, make the first connecting rod part can be around the axle of the first rotating shaft
Line rotates, one end of first fastener through first clip slot side wall and with the first connecting hole immovable fitting
Form the described first tight lock construction.And then the rotation connection between first connecting rod part and second connecting rod part is realized, realize first
Axis (i.e. first axle) of the link member along first rotating shaft rotates and the angle adjustment between second connecting rod part；Utilize simultaneously
First fastener and the first connecting hole cooperatively form the first tight lock construction, to realize between first connecting rod part and second connecting rod part
Fixation.
In one of the embodiments, the other end of the second connecting rod part is provided with the second clip slot and through described the
The second connecting hole that the side wall of two clip slots is set, one end of the third connecting rod part are provided with what is be rotatably assorted with second clip slot
Connector and the second fastener on connector is set, described in second fastener is engaged with second connecting hole and formed
Second tight lock construction, and the second connecting rod part can rotate around the axis of the second fastener.And then realize second connecting rod part with
Rotation connection between third connecting rod part, realize axis (i.e. second axis) of the second connecting rod part along the second fastener rotate and
With the angle adjustment between third connecting rod part；Tied simultaneously using the second tight lock that cooperatively forms of the second fastener and the second connecting hole
Structure, to realize the fixation between second connecting rod part and third connecting rod part.
In one of the embodiments, the other end of the third connecting rod part is provided with rotor, and the third connecting rod part can
Axis around the rotor rotates, the connection end be provided with the rotor the 3rd connecting hole that is rotatably assorted of socket and
The 3rd fastener of the 3rd tight lock construction is formed with the inwall of the 3rd connecting hole.And then realize third connecting rod part with
Rotation connection between connection end, realize axis (i.e. threeth axis) rotation and and connection end of the third connecting rod part along rotor
Between angle adjustment；The 3rd tight lock construction is cooperatively formed using the 3rd fastener and the 3rd connecting hole simultaneously, to realize the
Fixation between three link members and connection end.
In one of the embodiments, the described first tight lock construction, the second tight lock construction or/and the 3rd tight lock
Structure includes reducible index pin, and fixes the pin-and-hole coordinated with the fastening end of the index pin.And then using index pin
Fastening end and the fixing that resets of pin-and-hole coordinate to realize the first tight lock construction, the second tight lock construction and described 3rd tight
The release or locking of lock construction, it is easy to operate, it is easy to implement, it is favorably improved procedure efficiency.
In one of the embodiments, the handle arrangement including two be oppositely arranged first handle and second handle, with
And elastic component between the first handle and second handle is arranged at, the rotation connection of the first handle and the second handle,
And two connection ends can be driven to close up or open.And then the spacing between first handle and second handle can be elastic automatic multiple
Position, while can be arranged as required to the structure of first handle and second handle, during such as first handle and second handle move toward one another,
Gradually close up between two connection ends；When first handle moves with second handle opposite direction, gradually opened between two connection ends
Open.Or when first handle and second handle move toward one another, gradually opened between two connection ends；First handle and second handle phase
When opposite direction is moved, gradually close up between two connection ends.
In one of the embodiments, the handle arrangement is also included from lock set, described to include rotatably from lock set
The neck for being arranged at the rack of first handle and being arranged on the second handle and being clasped with the latch of the rack；
Or described include the scalable spacing dop being arranged on the first handle and being arranged at self-locking on second handle from lock set
Part, the self-locking body are provided with spaced multiple hole clippings along its length, and the hole clipping coordinates with the spacing dop.Enter
And using can carry out self-locking when can be realized from lock set and shrink or close up between first handle and second handle, make to strut operation
And extrusion operation can self-locking, improve the convenience of operation technique.
Brief description of the drawings
Fig. 1 is the structural blast schematic diagram of the spacing regulator of percutaneous cervical arc root screw of the present invention；
Fig. 2 is the structural representation of the first press part of the present invention；
Fig. 3 is the structural representation of first connecting rod part of the present invention；
Fig. 4 is the structural representation of second connecting rod part of the present invention；
Fig. 5 is the structural representation of third connecting rod part of the present invention；
Fig. 6 is the structural representation that force of the present invention clamps component；
Fig. 7 is the structural representation of the embodiment one of the spacing regulator of percutaneous cervical arc root screw of the present invention
Figure；
Fig. 8 is the structural representation of the embodiment two of the spacing regulator of percutaneous cervical arc root screw of the present invention
Figure.
Description of reference numerals：
100th, force pincers component, 110, connection end, the 112, the 3rd connecting hole, the 114, the 3rd fastener, 120, handle arrangement,
122nd, first handle, 124, second handle, 126, elastic component, 128, self-locking structure, 200, compress component, 210, first compresses
Part, 212, first through hole, 214, stopper slot, 216, auxiliary positioning groove, 218, lightening grooves, 220, first connecting rod part, 221, second
Through hole, the 223, first mounting hole, the 225, first connecting hole, 230, second connecting rod part, the 231, first clip slot, 232, first rotating shaft,
233rd, the first fastener, the 234, second clip slot, the 235, second connecting hole, 240, third connecting rod part, 242, connector, 244, second
Fastener, 246, rotor, the 250, first tight lock construction, the 260, second tight lock construction, the 270, the 3rd tight lock construction, 300, vertebral arch
Root screw, 310, tail cap, 400, pitman, pedicle of vertebral arch between 500, vertebra.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing and specific embodiment party
Formula, the present invention is described in further detail.It should be appreciated that embodiment described herein is only solving
The present invention is released, does not limit protection scope of the present invention.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
Heretofore described " first ", " second " do not represent specific quantity and order, are only used for the differentiation of title.
As shown in Figures 1 to 7, the spacing regulator of a kind of percutaneous cervical arc root screw of the present invention, including：Force
Component 100 is clamped, force pincers component 100 is provided with two relatively-movable connection ends 110 and for driving two connection ends 110 to close
The handle arrangement 120 for holding together or opening；And two compress component 200, two compress component 200 respectively with two connection ends 110 1
One correspondence, compressing component 200 includes the first press part 210, first connecting rod part 220, second connecting rod part 230 and third connecting rod part
240, one end of the first press part 210 sets jaw, the other end is fixedly connected with one end of first connecting rod part 220, first connecting rod part
220 other end is rotatablely connected with one end of second connecting rod part 230 and is provided with the first tight lock construction 250, second connecting rod part 230
The other end and third connecting rod part 240 one end rotation connection and be provided with the second tight lock construction 260, third connecting rod part 240 it is another
One end is rotatablely connected with connection end 110 and is provided with the 3rd tight lock construction 270；When the first tight lock construction 250 unclamps, first connects
Rod member 220 can rotate around first axle；When the second tight lock construction 260 is locked, first connecting rod part 220 and second connecting rod part 230
It is fixed；When the second tight lock construction 260 unclamps, second connecting rod part 230 can rotate around second axis；When the second tight lock construction 260
During locking, second connecting rod part 230 is fixed with third connecting rod part 240；When the 3rd tight lock construction 270 unclamps, third connecting rod part 240
It can be rotated around the 3rd axis；When the 3rd tight lock construction 270 is locked, third connecting rod part 240 is fixed with connection end 110；Wherein,
It is mutually perpendicular to two-by-two between one axis, second axis and the 3rd axis or near normal.
As shown in Figures 1 to 8, in spinal orthopedic surgery operation, when needing to use pedicle screw 300 and pitman
When the vertebra of 400 pairs of lateral bendings is strutted, extruded, first pedicle screw 300 can be squeezed into backbone, while by pitman 400
It is arranged in the tail cap 310 of two pedicle screws 300；Then the spacing regulator of percutaneous cervical arc root screw is utilized, respectively
By the corresponding pedicle screws 300 of two the first press parts 210 for compressing component 200, now the first tight lock construction 250, the
Two tight 260 and the 3rd tight lock constructions 270 of lock construction unclamp, by along three dimensions (first axle, second axis and the 3rd axles
Line) the first press part 210 of adjustment jaw, make that it is compressed with corresponding pitman 400 and pedicle screw 300 compresses, then
The first tight lock construction 250, the second tight 260 and the 3rd tight lock construction 270 of lock construction are tightened respectively, make first connecting rod part 220 and
Two link members 230 are fixed, second connecting rod part 230 is fixed with third connecting rod part 240, third connecting rod part 240 and connection end 110 are solid
It is fixed；Opened finally by the drive connection end 110 of handle arrangement 120 and then strut the spacing between two pedicle screws 300,
Or closed up by the drive connection end 110 of handle arrangement 120, and then the spacing closed up between two pedicle screws 300, pass through tune
The spacing of whole pedicle screw 300 adjusts the distance of vertebral arch between vertebra, meets that operation requires distance, is tightened finally by bottle opener
Tight lock screw, makes two pedicle screws 300 be fixed with pitman 400, and then the distance of vertebral arch between fixed vertebra
Effect.The spacing regulator of above-mentioned percutaneous cervical arc root screw, the jaw position of the first press part 210 can be according to pedicle screw
300 position is adjusted, and fixed again, driving handle is strutted or closed up after adjusting, and is easy to exert a force, is made pedicle screw
300 spacing adjustment is reliable and stable, and being easy to tighten tightly lock screw fixes pitman 400 and pedicle screw 300, reduces to doctor
Raw Surgical technique requires to rely on, and reduces operating difficulty.
It should be noted that it is mutually perpendicular to two-by-two between the first axle, the second axis and the 3rd axis
Or near normal, it is not necessarily absolute vertical therebetween, it is allowed to there is certain error (foozle, rigging error etc.),
As long as this error, which does not influence it, solves the protection domain that technical problem is belonged to required by the application.First press part 210 it is another
The mode that one end is connected with one end of first connecting rod part 220 can be：It is fixedly connected, such as the mode of non-dismountable connection, such as welds
Connect fixed, riveting to fix, be integrally formed fixed etc., the mode being such as detachably connected, be such as threadedly coupled fixed, buckle and fix, cover
Connect fixed etc.；Or rotation connection, such as realize the other end of the first press part 210 and first connecting rod part by setting bearing
The rotation connection of 220 one end, or other rotation connection modes, its concrete mode can also be real by other prior arts
It is existing, it will not be repeated here.When an element is considered as with another element " rotation connection ", it can be by around the shaft
Axis, rotor 246 axis or connector the rod member such as axis axis or center line rotated, embodiments thereof has
It is a variety of.
As shown in Figures 1 to 6, in addition, the first tight lock construction 250, the second tight 260 or/and the 3rd tight lock construction of lock construction
270 implementation have it is a variety of, such as by the elastic cooperation of fastener and connecting hole come realize first connecting rod part 220, second connect
Rod member 230 or third connecting rod part 240 rotate and not rotatable, such as bolt and screwed hole, spacer pin and pin-and-hole；Or matched somebody with somebody by buckle
The mode of conjunction is rotated realizing first connecting rod part 220, second connecting rod part 230 or third connecting rod part 240 and not rotatable, such as clutch
Device etc..
As shown in Figures 1 to 7, specifically, the other end of first connecting rod part 220 is provided with the first mounting hole 223 and at least two
Individual outer circumferentially spaced first connecting hole 225 along the first mounting hole 223, one end of second connecting rod part 230 are provided with and the
The first clip slot 231 that the other end of one connecting rod is rotatably assorted, the first rotating shaft 232 for being fixedly arranged on the inwall of the first clip slot 231 and
First fastener 233, the mounting hole 223 of first rotating shaft 232 and first are rotatably assorted, make first connecting rod part 220 can be around first rotating shaft
232 axis rotates, and one end of the first fastener 233 passes through the side wall of the first clip slot 231 and fastened with the first connecting hole 225
Cooperatively form the first tight lock construction 250.And then the rotation connection between first connecting rod part 220 and second connecting rod part 230 is realized,
Realize that axis (i.e. first axle) of the first connecting rod part 220 along first rotating shaft 232 rotates and between second connecting rod part 230
Angle adjustment；The first tight lock construction 250 is cooperatively formed using the first fastener 233 and the first connecting hole 225 simultaneously, to realize
Fixation between first connecting rod part 220 and second connecting rod part 230.Further, the other end of second connecting rod part 230 is provided with second
Clip slot 234 and through the second clip slot 234 side wall set the second connecting hole 235, one end of third connecting rod part 240 is provided with
The second fastener 244 on connector 242 and setting connector 242 being rotatably assorted with the second clip slot 234, the second fastener
244 are engaged to form the second tight lock construction 260 with the second connecting hole 235, and second connecting rod part 230 can be around the second fastener 244
Axis rotate；And then the rotation connection between second connecting rod part 230 and third connecting rod part 240 is realized, realize second connecting rod
Axis (i.e. second axis) of the part 230 along the second fastener 244 rotates and the angle adjustment between third connecting rod part 240；Together
Shi Liyong the second fasteners 244 and the second connecting hole 235 cooperatively form the second tight lock construction 260, to realize second connecting rod part
Fixation between 230 and third connecting rod part 240.Further, the other end of third connecting rod part 240 is provided with rotor 246, the
Three link members 240 can rotate around the axis of rotor 246, and connection end 110 is provided with is socketed the be rotatably assorted the 3rd with rotor 246
Connecting hole 112 and the 3rd fastener 114 with inwall the 3rd tight lock construction 270 of formation of the 3rd connecting hole 112；And then realize
Rotation connection between third connecting rod part 240 and connection end 110, realizes axis of the third connecting rod part 240 along rotor 246
(i.e. the 3rd axis) rotates and the angle adjustment between connection end 110；It is connected simultaneously using the 3rd fastener 114 with the 3rd
Hole 112 cooperatively forms the 3rd tight lock construction 270, to realize the fixation between third connecting rod part 240 and connection end 110.
Or in another embodiment, the first tight lock construction 250, the second tight 260 or/and the 3rd tight lock construction of lock construction
270 include reducible index pin (not shown), and fix the pin-and-hole (not shown) coordinated with the fastening end of index pin.And then can
Coordinated using the fastening end of index pin and the fixing that resets of pin-and-hole to realize the first tight lock construction 250, the second tight lock construction 260
It is easy to operate with the release or locking of the 3rd tight lock construction 270, it is easy to implement, it is favorably improved procedure efficiency.
As shown in Fig. 1 to Fig. 3 and Fig. 7, on the basis of any of the above-described embodiment, 210 cylindrical knot of the first press part
Structure and provided with the first through hole 212 through its both ends, the side wall of the first press part 210 is provided with two stopper slots being oppositely arranged
214, stopper slot 214 coordinates with the gap of pitman 400 and the tail cap 310 of the madial wall of stopper slot 214 and pedicle screw 300
Cooperation is compressed, two stopper slots 214 complement each other to form jaw.Because of 210 cylindrical structure of the first press part and provided with being easy to
The interspersed first through hole 212 of bottle opener, at the same using on the first press part 210 of cylindrical shape two stopper slots 214 of setting come shape
Into jaw, so pedicle screw 300 can be inserted in first through hole 212 then using two stopper slots 214 madial wall come
Compress the tail cap 310 of pedicle screw 300, it is possible to achieve strut and extruding action, the stopper slot 214 are also available for pitman 400
Insertion, avoids because of the interference effect of pitman 400, causing the first press part 210 can not be with the tail cap 310 of pedicle screw 300
Compress cooperation.Further, the lateral wall of the first press part 210 be provided with along the first press part 210 axis direction and with it is spacing
The spaced auxiliary positioning groove 216 of groove 214, the center line of auxiliary positioning groove 216 is with the center line of stopper slot 214 with always
On line and auxiliary positioning groove 216 width be equal to stopper slot 214 width.And then using auxiliary positioning groove 216 come auxiliary positioning
The position of stopper slot 214, it is easy to doctor to judge clip slot position, preferably implements related surgical operation, while the auxiliary is determined
The setting of position groove 216 can mitigate the weight of the first press part 210；Lightening grooves 218 can also be further set simultaneously, along first
Press part 210 it is circumferentially disposed, make the spacing regulator of operation percutaneous cervical arc root screw to adjust two pedicle screws 300
Between spacing when, more steadily, improve success rate of operation.Further, the other end of the first press part 210 and first connects
Rod member 220 is detachably rotatablely connected, and first connecting rod part 220 is provided with second through hole 221 corresponding with first through hole 212.And then
The first press part 210 can be changed to adapt to different operation demands according to being actually needed.Specifically, the first press part 210 is another
End is provided with external thread structure, and first connecting rod part 220 is provided with bearing, and the inwall of the outer ring of the bearing and the second through hole is fixed, the axle
The inwall of the inner ring held is provided with the female thread structure being engaged with external thread structure, and then can realize the another of the first press part 210
One end and one end of first connecting rod part 220 are detachably rotatablely connected.
As shown in Fig. 1, Fig. 7 and Fig. 8, on the basis of any of the above-described embodiment, handle arrangement 120 includes two and set relatively
Put first handle 122 and second handle 124 and be arranged at elastic component 126 between first handle 122 and second handle 124, the
One handle 122 is rotatablely connected with second handle 124 and two connection ends 110 can be driven to close up or open.And then first handle
Spacing between 122 and second handle 124 can elasticity automatically reset, while first handle 122 and second can be arranged as required to
The structure of handle 124, such as first handle 122 and during 124 move toward one another of second handle, gradually close up between two connection ends 110；
When first handle 122 moves with the opposite direction of second handle 124, gradually opened between two connection ends 110.Or first handle
122 with 124 move toward one another of second handle when, gradually open between two connection ends 110；First handle 122 and second handle 124
When opposite direction is moved, gradually close up between two connection ends 110.The elastic component 126 can be flexure strip, back-moving spring etc..
Further, handle arrangement 120 is also included from lock set.In one of the embodiments, including from lock set can
Rotate the latch (not shown) for being arranged at the ratchet gear (not shown) of first handle 122 and being engaged with ratchet gear, latch
It is arranged on second handle 124, and then realizes the unidirectional self-lock function of handle arrangement 120.In another embodiment, from lock set
Including be rotatably arranged at the rack (not shown) of first handle 122 and be arranged on second handle 124 and with the latch of rack
The neck (not shown) being clasped；Or include the scalable spacing dop being arranged on first handle 122 from lock set and set
Self-locking body (not shown) on second handle 124 is placed in, self-locking body is provided with spaced multiple hole clippings along its length and (do not shown
Go out), hole clipping coordinates with spacing dop.And then shunk using that can be realized from lock set between first handle 122 and second handle 124
Or self-locking can be carried out when closing up, the bidirectional self-locking function of handle arrangement 120 is realized, even if strutting operation and extrusion operation
Self-locking, improve the convenience of operation technique.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. spacing regulator of percutaneous cervical arc root screw, it is characterised in that including：Force pincers component, the force pincers component are provided with two relatively-movable connection ends and for driving two connections Hold the handle arrangement for closing up or opening；AndTwo compress component, and component is compressed described in two and is corresponded respectively with two connection ends, described to compress component bag Include the first press part, first connecting rod part, second connecting rod part and third connecting rod part, one end of first press part sets jaw, another One end is connected with one end of the first connecting rod part, and one end of the other end of the first connecting rod part and the second connecting rod part turns Dynamic to connect and be provided with the first tight lock construction, one end of the other end of the second connecting rod part and the third connecting rod part, which rotates, to be connected Connect and be provided with the second tight lock construction, the other end of the third connecting rod part is rotatablely connected and tight provided with the 3rd with the connection end Lock construction；When the first tight lock construction unclamps, the first connecting rod part can rotate around first axle；When the described second tight lock construction lock When tight, the first connecting rod part is fixed with the second connecting rod part；When the second tight lock construction unclamps, the second connecting rod part can rotate around second axis；When the described second tight lock construction lock When tight, the second connecting rod part is fixed with the third connecting rod part；When the 3rd tight lock construction unclamps, the third connecting rod part can rotate around the 3rd axis；When the described 3rd tight lock construction lock When tight, the third connecting rod part is fixed with the connection end；Wherein, it is mutually perpendicular to two-by-two between the first axle, the second axis and the 3rd axis or near normal.
- 2. the spacing regulator of percutaneous cervical arc root screw according to claim 1, it is characterised in that described first compresses The cylindrical structure of part and provided with the first through hole through its both ends, the side wall of first press part is oppositely arranged provided with two Stopper slot, the stopper slot and pitman gap coordinate and the madial wall of the stopper slot and the tail cap of pedicle screw are supported Press-fit, two stopper slots complement each other to form the jaw.
- 3. the spacing regulator of percutaneous cervical arc root screw according to claim 2, it is characterised in that described first compresses The lateral wall of part be provided with along first press part axis direction and with the spaced auxiliary positioning groove of the stopper slot, The center line of the auxiliary positioning groove and the center line of the stopper slot on the same line and the auxiliary positioning groove width Equal to the width of the stopper slot.
- 4. the spacing regulator of percutaneous cervical arc root screw according to claim 2, it is characterised in that described first compresses The other end of part is detachably rotatablely connected with the first connecting rod part, and the first connecting rod part is provided with relative with the first through hole The second through hole answered.
- 5. the spacing regulator of percutaneous cervical arc root screw according to claim 1, it is characterised in that the first connecting rod The other end of part connects provided with the first mounting hole and at least two along outer circumferentially spaced the first of first mounting hole Hole, one end of the second connecting rod part are provided with the first clip slot being rotatably assorted with the other end of the head rod, are fixedly arranged on The first rotating shaft and the first fastener of the first clip slot inwall, the first rotating shaft rotates with first mounting hole matches somebody with somebody Close, the first connecting rod part is rotated around the axis of the first rotating shaft, one end of first fastener is through described the The side wall of one clip slot and form the described first tight lock construction with the first connecting hole immovable fitting.
- 6. the spacing regulator of percutaneous cervical arc root screw according to claim 5, it is characterised in that the second connecting rod The second connecting hole that the other end of part is provided with the second clip slot and the side wall through second clip slot is set, the described 3rd connects One end of rod member is provided with the connector that is rotatably assorted with second clip slot and sets the second fastener on connector, and described the Two fasteners are engaged to form the described second tight lock construction with second connecting hole, and the second connecting rod part can be tight around second The axis of firmware rotates.
- 7. the spacing regulator of percutaneous cervical arc root screw according to claim 6, it is characterised in that the third connecting rod The other end of part is provided with rotor, and the third connecting rod part can rotate around the axis of the rotor, the connection end be provided with The 3rd connecting hole and form the described 3rd tight lock knot with the inwall of the 3rd connecting hole that the rotor socket is rotatably assorted 3rd fastener of structure.
- 8. the spacing regulator of percutaneous cervical arc root screw according to claim 1, it is characterised in that the described first tight lock Structure, the second tight lock construction or/and the 3rd tight lock construction include reducible index pin, and with the index pin Fastening end fixes the pin-and-hole coordinated.
- 9. the spacing regulator of percutaneous cervical arc root screw according to any one of claim 1 to 8, it is characterised in that The handle arrangement is oppositely arranged first handle and second handle including two and is arranged at the first handle and second-hand Elastic component between handle, the first handle and the second handle be rotatablely connected and can drive two connection ends close up or Open.
- 10. the spacing regulator of percutaneous cervical arc root screw according to claim 9, it is characterised in that the handle knot Structure is also included from lock set, described to include rotatably being arranged at the rack of first handle from lock set and be arranged at the second-hand The neck being clasped on handle and with the latch of the rack；Or described include scalable being arranged at described first from lock set Spacing dop on handle and self-locking body on second handle is arranged at, the self-locking body is provided with spaced along its length Multiple hole clippings, the hole clipping coordinate with the spacing dop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818741.4A CN107595377B (en) | 2017-09-12 | 2017-09-12 | Device for adjusting distance between percutaneous pedicle screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818741.4A CN107595377B (en) | 2017-09-12 | 2017-09-12 | Device for adjusting distance between percutaneous pedicle screws |
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| Publication Number | Publication Date |
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| CN107595377A true CN107595377A (en) | 2018-01-19 |
| CN107595377B CN107595377B (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710818741.4A Active CN107595377B (en) | 2017-09-12 | 2017-09-12 | Device for adjusting distance between percutaneous pedicle screws |
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| CN (1) | CN107595377B (en) |
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| CN108814680A (en) * | 2018-04-10 | 2018-11-16 | 中国人民解放军陆军军医大学第二附属医院 | Purse-string forceps for single-hole laparoscopic surgery |
| CN110101419A (en) * | 2019-04-26 | 2019-08-09 | 昆明医科大学第二附属医院 | A kind of device for spreading being adapted to pedicle screw |
| CN110974390A (en) * | 2019-12-11 | 2020-04-10 | 常州市图尔迈医疗器械有限公司 | Mounting rack for accurately positioning intramedullary nail |
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| CN110974390A (en) * | 2019-12-11 | 2020-04-10 | 常州市图尔迈医疗器械有限公司 | Mounting rack for accurately positioning intramedullary nail |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107595377B (en) | 2020-03-10 |
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