CN208551991U - Sleeve and auxiliary device for installing pitman - Google Patents
Sleeve and auxiliary device for installing pitman Download PDFInfo
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- CN208551991U CN208551991U CN201721514342.0U CN201721514342U CN208551991U CN 208551991 U CN208551991 U CN 208551991U CN 201721514342 U CN201721514342 U CN 201721514342U CN 208551991 U CN208551991 U CN 208551991U
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- Prior art keywords
- sleeve
- pitman
- guide groove
- limit
- slot
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- 230000007246 mechanism Effects 0.000 claims description 6
- 230000007480 spreading Effects 0.000 claims description 6
- 230000003447 ipsilateral effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 18
- 238000001356 surgical procedure Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 206010052428 Wound Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 230000008676 import Effects 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 4
- 230000000451 tissue damage Effects 0.000 description 4
- 231100000827 tissue damage Toxicity 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000020307 Spinal disease Diseases 0.000 description 1
- 208000020339 Spinal injury Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
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Abstract
A kind of auxiliary device the utility model discloses sleeve and for installing pitman, the sleeve includes cylinder, the cylinder includes the first end and second end being oppositely arranged, the second end of cylinder is equipped with the clamping head snapped connection for the tail cap with pedicle screw, cylinder is equipped with the through-hole through first end and second end, the side wall of through-hole is equipped with the first guide groove, the second guide groove being oppositely arranged with the first guide groove, limit through slot and guide wall, first guide groove is through to second end setting from first end, second guide groove is arranged through second end, through slot is limited to be arranged through first end, guide wall is set between the second guide groove and limit through slot.The sleeve and auxiliary device for installing pitman, the installation accuracy of pitman are improved using each guidance feature of cylinder, and then also improve spinal surgery efficiency.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly to a kind of sleeve and for installing the auxiliary of pitman
Help device.
Background technique
By the clinical research of many years, spine nail stick internal fixation system has become a kind of more mature spinal surgery
Medical instrument is widely used in treating spinal injury and related spinal disease.And Minimally Invasive Surgery can reduce group in art because of it
Damage and bleeding are knitted, patients surgery slight illness is reduced, shortens wound healing time and the concern increasingly by doctor and patient.
In spine nail stick internal fixation system, the peace for being attached stick for installing the auxiliary device of pitman need to be often used
Dress.The auxiliary device of installation pitman is traditionally used in use, its concrete operation method are as follows: hold stick device and be fixed on pitman one
It is transversely-placed (holding stick device and pedicle screw near normal at this time) to hold stick device for end, and by pitman laterally to wear bar form
It is placed in first pedicle screw U-type groove, then pushes pitman to lean on to second pedicle screw U-type groove by holding stick device
Closely, when close to U-type groove, overturning holds stick device to parallel with pedicle screw, pitman can be inserted into second pedicle of vertebral arch at this time
In screw U-type groove.It is reciprocal with this, pitman can be inserted into in more pedicle screw U-type grooves.
The auxiliary device of installation pitman is traditionally used for for needing laterally (with pedicle screw axis when installing pitman
Intersect direction in line direction) stick is set, it is easy to deviate correct line in installation process, makes one end of pitman that can not be placed in second vertebra
In pedicle screw U-type groove, need repeatedly to wear clubs work, installation effectiveness is low；It also results in and is traditionally used for the auxiliary of installation pitman
When device being helped to be applied to spinal surgery treatment, there is higher requirement to doctor's operating experience.
Summary of the invention
Based on this, it is necessary to provide a kind of sleeve and the auxiliary device for installing pitman, the peace of pitman can be improved
Accuracy is filled, the installation effectiveness of pitman is improved.
Its technical solution is as follows:
A kind of sleeve, including cylinder, the cylinder include the first end and second end being oppositely arranged, and the second of the cylinder
End is equipped with the clamping head that snaps connection for the tail cap with pedicle screw, and the cylinder is equipped with through the first end and described
The through-hole of second end, the side wall of the through-hole are equipped with the first guide groove and first guide groove are oppositely arranged second
Guide groove, limit through slot and guide wall, first guide groove are through to second end setting from the first end, and described the
Two guide grooves are arranged through the second end, and the limit through slot is arranged through the first end, and the guide wall is set to
Between second guide groove and the limit through slot.
When above-mentioned sleeve can be applied to the guiding installation of pitman, pitman can sleeve through-hole depth direction to moving down
It is dynamic, and cooperated by the free end of pitman and guide wall guiding, import the free end of pitman by the guide wall of sleeve
It in second guide groove of sleeve, afterwards turns over, the second guiding that mobile connection stick makes the free end of pitman pass through sleeve is led to
Slot is simultaneously mobile to the second guide groove of another sleeve, and then can make to take over the baton and be set in two sleeves.The utility model
When sleeve is applied to the guiding installation of pitman, pitman can be made longitudinally to enter along the length direction of sleeve, relative to existing
Transverse direction set bar mode, provide and a kind of new set bar mode；When applied to spinal surgery, this, which longitudinally enters, sets bar mode energy
The wound area worn at stick that pitman enters first sleeve is enough reduced, the rehabilitation of patient is more conducive to.
Technical solution is illustrated further below:
The first of rounding off is equipped between the limit through slot and the guide wall in one of the embodiments, to import
Portion is equipped with the second introduction part of rounding off between second guide groove and the guide wall.And then it is carried out using sleeve
When the installation of pitman, convenient for compressing cooperation with the limit body for holding stick device using first introduction part and the limit body can be around this
The rotation of first introduction part；The setting of second introduction part, convenient for pitman around the second introduction part smooth rotation.
The first end of the cylinder is equipped with the second end of external thread structure or the cylinder in one of the embodiments,
Equipped with internal thread structure.
The clamping head includes two spaced clamps and is set on the clamp in one of the embodiments,
Elastic slice, first guide groove and second guide groove are equipped between two clamps, the clamp is equipped with folder
Slot, the elastic slice are equipped with protrusion.And then be socketed and cooperate using the tail cap of the clip slot of clamp and pedicle screw, utilizing elastic slice
On protrusion fasten with the limit hole of tail cap, and then clamping head is fixed in tail cap, realization sleeve and pedicle screw
It is fixedly connected；When the two needs to dismantle, it need to only make the protrusion pop-up of elastic slice, be separated with limit hole, which can be from tail
It is extracted out on cap, realizes the separation of sleeve and pedicle screw.
The utility model also provide it is a kind of for installing the auxiliary device of pitman, including above-mentioned sleeve, the sleeve
At least two, it further include holding stick device, the stick device of holding includes socket part and limit body, and the socket part is set to the limit
The free end of body, the limit body can match with the limit through slot of at least two sleeves and first guide groove limit
It closes, it is described to hold stick device and be detachably connected by the socket part with pitman.
It is above-mentioned for installing the auxiliary device of pitman, can use and hold the limit body of the barred body limit with two casings respectively
Position slot limit cooperation keeps second guide groove of two sleeves symmetrical, and pitman can be inserted into it by the stick device of holding
In a sleeve through-hole in, hold stick device by driving, make the pitman along the wherein through-hole of a sleeve
Depth direction moves down, and the free end of the pitman imports the second guiding of the sleeve by the guide wall of the sleeve
The second guide groove in through slot and to sleeve described in another is mobile, and then pitman can be accurately set to two sets
In cylinder.This is used to install the auxiliary device of pitman, pitman can be made longitudinally to enter along the length direction of sleeve, while accurate
Be inserted into another sleeve from a sleeve, pitman is accurately set to two sleeves, substantially increase installation effect
Rate sets bar mode relative to existing transverse direction, provides and a kind of new sets bar mode；When applied to spinal surgery, this longitudinal direction
It can reduce the wound area worn at stick that pitman enters first sleeve into bar mode is set, be more conducive to the health of patient
It is multiple；Simultaneously without operation of repeatedly exposing the false, patient tissue damage and bleeding can be reduced, the requirement to surgical experience is also reduced,
Convenient for the popularization of spinal surgery.
The auxiliary device further includes pressure cylinder component in one of the embodiments, the pressure cylinder component include pressure cylinder and with
The actuating sleeve that one end of the pressure cylinder is rotatably connected, the pressure cylinder are equipped with the matching hole for being arranged the sleeve, the pressure cylinder
What one end was equipped with protrusion setting compresses body, the body that compresses for compressing the pitman, the actuating sleeve be equipped with it is described outer
The internal thread hole of helicitic texture connection cooperation, and the rotation of the actuating sleeve is able to drive the pressure cylinder along the length of the sleeve
Direction moves back and forth.And then the rotary power of actuating sleeve can be converted into linear driving force, drive pressure cylinder by rotating actuating sleeve
Length direction along the sleeve moves back and forth.Certainly, specifically, the actuating sleeve can be nut set, which is silk
Bar.
Rotatable cutting ferrule part, the cutting ferrule part and the pressure cylinder are set in the actuating sleeve in one of the embodiments,
It is fixed, the first guide ledges, first guide ledges and the limit through slot and/or described first are equipped in the cutting ferrule part
Guide groove guiding cooperation；Or the inner wall of the matching hole is equipped with the second guide ledges, second guide ledges and the limit
Position through slot and/or first guide groove guiding cooperation.And then using the first guide ledges or the second guide ledges come with limit
Position through slot and/or the guiding cooperation of the first guide groove, when so that actuating sleeve driving pressure cylinder moving movement, pressure cylinder is not rotated；
After first guide ledges or the insertion of the second guide ledges limit through slot and/or the first guide groove simultaneously, to hollow, fluting
Cylinder plays certain supporting role, prevents sleeve stress deformation.
In one of the embodiments, it is described compress body compress end be equipped with it is compatible with the pitman compress it is recessed
Slot.
It in one of the embodiments, further include spreading mechanism, the spreading mechanism is for adjusting and fixing two sleeves
Between spacing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram at the first visual angle of sleeve described in the utility model；
Fig. 2 is the structural schematic diagram at the second visual angle of sleeve described in the utility model；
Fig. 3 is described in the utility model for installing the structural schematic diagram of the auxiliary device of pitman；
Fig. 4 is the assembling schematic diagram of sleeve described in the utility model and pressure cylinder component；
Fig. 5 is the perspective view of the explosion of the sleeve and pressure cylinder component in Fig. 4；
Fig. 6 is the half section schematic diagram of actuating sleeve described in the utility model；
Fig. 7 is that state diagram one is illustrated in the installation of pitman described in the utility model；
Fig. 8 is that state diagram two is illustrated in the installation of pitman described in the utility model；
Fig. 9 is that state diagram three is illustrated in the installation of pitman described in the utility model；
Figure 10 is that state diagram four is illustrated in the installation of pitman described in the utility model；
Figure 11 is that state diagram five is illustrated in the installation of pitman described in the utility model.
Description of symbols:
10, sleeve, 100, cylinder, 102, first end, 104, second end, 110, clamping head, 112, clamp, 106, clip slot,
114, elastic slice, 108, protrusion, 120, through-hole, the 130, first guide groove, the 140, second guide groove, 150, limit through slot,
160, guide wall, the 162, first introduction part, the 164, second introduction part, 170, external thread structure, 20, hold stick device, 22, socket part,
24, limit body, 30, pressure cylinder component, 300, pressure cylinder, 310, matching hole, 320, compress body, 400, actuating sleeve, 410, internal thread hole,
420, cutting ferrule part, the 422, first guide ledges, 40, pedicle screw, 42, tail cap, 44, card slot, 50, pitman.
Specific embodiment
It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the protection scope of the utility model is not limited.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
" first " described in the utility model, " second " do not represent specific quantity and sequence, are only used for title
It distinguishes.
As shown in Figures 1 and 2, the utility model provides a kind of sleeve 10, including cylinder 100, and cylinder 100 includes opposite sets
The first end 102 and second end 104 set, the second end 104 of cylinder 100 are equipped with for buckling with the tail cap 42 of pedicle screw 40
The clamping head 110 of connection, cylinder 100 are equipped with the through-hole 120 through first end 102 and second end 104, and the side wall of through-hole 120 is set
There is the first guide groove 130, the second guide groove 140 for being oppositely arranged with the first guide groove 130, limit through slot 150 and lead
To wall 160, the first guide groove 130 is through to second end 104 from first end 102 and is arranged, and the second guide groove 140 runs through second
104 setting of end, limit through slot 150 are arranged through first end 102, and guide wall 160 is set to the second guide groove 140 and limit is logical
Between slot 150.
As shown in Fig. 1 and Fig. 2, Fig. 7 to Figure 11, when above-mentioned sleeve 10 can be applied to the guiding installation of pitman 50, connection
Stick 50 can the depth direction of through-hole 120 of sleeve 10 move down, and be oriented to by the free end of pitman 50 and guide wall 160
Cooperation imports the free end of pitman 50 in second guide groove 140 of sleeve 10 by the guide wall 160 of sleeve 10, so
Overturning, mobile connection stick 50 make the free end of pitman 50 pass through the second guide groove 140 of sleeve 10 and to another set afterwards
Second guide groove 140 of cylinder 10 is mobile, and then can make to take over the baton and be set in two sleeves 10.The sleeve 10 of the utility model is answered
When guiding for pitman 50 is installed, pitman 50 can be made longitudinally to enter along the length direction of sleeve 10, relative to existing
Transverse direction set bar mode, provide and a kind of new set bar mode；When applied to spinal surgery, this, which longitudinally enters, sets bar mode energy
The wound area worn at stick that pitman 50 enters first sleeve 10 is enough reduced, the rehabilitation of patient is more conducive to.
As shown in Figure 1 to Figure 3, the utility model also provides a kind of for installing the auxiliary device of pitman including above-mentioned
Sleeve 10, sleeve 10 at least two further includes holding stick device 20, hold stick device 20 include socket part 22 and limit body 24, socket
Portion 22 is set to the free end of limit body 24, and limit body 24 can be led with the limit through slot 150 of at least two sleeves 10 and first
It limits and cooperates to through slot 130, hold stick device 20 and be detachably connected by socket part 22 with pitman 50.
It is above-mentioned for installing the auxiliary device of pitman as shown in Fig. 1 to Fig. 3 and Fig. 7 to Figure 11, it can use and hold barred body
Limit body 24 respectively with the limiting slot of two casings limit cooperation, keep second guide groove 140 of two sleeves 10 symmetrical,
Pitman 50 can be inserted in one of in the through-hole 120 of sleeve 10 by holding stick device 20, held stick device 20 by driving, made pitman
50 move down along the depth direction of the wherein through-hole 120 of a sleeve 10, free end the leading by sleeve 10 of pitman 50
It is into the second guide groove 140 of the importing sleeve 10 of wall 160 and mobile to the second guide groove 140 of another sleeve 10, into
And pitman 50 can be accurately set in two sleeves 10.This is used to install the auxiliary device of pitman, can make to connect
Stick 50 longitudinally enters along the length direction of sleeve 10, while being accurately inserted into another sleeve 10 from a sleeve 10, will
Pitman 50 is accurately set to two sleeves 10, substantially increases installation effectiveness, sets bar mode relative to existing transverse direction, mention
Bar mode is set for a kind of new；When applied to spinal surgery, this longitudinally enter set bar mode can reduce pitman 50 into
The wound area worn at stick for entering first sleeve 10, is more conducive to the rehabilitation of patient；It, can simultaneously without operation of repeatedly exposing the false
Patient tissue damage and bleeding are reduced, reduces the requirement to surgical experience, also convenient for the popularization of spinal surgery.
As shown in Figures 1 and 5, in the present embodiment, it limits and is equipped with rounding off between through slot 150 and guide wall 160
First introduction part 162 is equipped with the second introduction part 164 of rounding off between second guide groove 140 and guide wall 160.In turn
When being attached the installation of stick 50 using sleeve 10, convenient for being supported using first introduction part 162 with the limit body 24 for holding stick device 20
The press-fit and limit body 24 can be around 162 smooth rotation of the first introduction part；The setting of second introduction part 164, convenient for connection
Stick 50 reduces so that pitman 50 is steady from longitudinal process for turning to transverse direction to peripheral group around 164 smooth rotation of the second introduction part
The damage knitted.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the first end 102 of the cylinder 100 is equipped with external thread structure 170, auxiliary dress
Setting further includes 300 component 30 of pressure cylinder, the drive that 300 component 30 of pressure cylinder is rotatably connected including pressure cylinder 300 and with one end of pressure cylinder 300
Dynamic set 400, pressure cylinder 300 are equipped with the matching hole 310 for being arranged sleeve 10, and one end of pressure cylinder 300 compresses body equipped with protrusion setting
320, body 320, which is compressed, for compressing pitman 50, actuating sleeve 400 is equipped with the internal thread hole that cooperation is connect with external thread structure 170
410, and the rotation of actuating sleeve 400 is able to drive pressure cylinder 300 and moves back and forth along the length direction of sleeve 10.And then rotation can be passed through
The rotary power of actuating sleeve 400 is converted into linear driving force, length direction of the driving pressure cylinder 300 along sleeve 10 by actuating sleeve 400
Move back and forth, the axis along pedicle screw 40 moves, almost not damaged to 42 surrounding tissue of tail cap.Certainly, specifically, the drive
Dynamic set 400 can be nut set, which is screw rod；In another implementation, the second end 104 of the cylinder 100 is set
Have an internal thread structure, so by the internal thread structure can in carrying out pressure bar in the way of pitman 50 is fixed on pedicle of vertebral arch screw
In the tail cap of nail 40；Lock-screw can be specifically inserted into cylinder 100 by operational instrument, rotation process tool makes to lock
Screw internal thread structure threaded engagement simultaneously deepens continuously in cylinder, pitman 50 is pressed in the card slot 44 of tail cap 42, simultaneously
The lock-screw is threadedly coupled with the internal thread hole of tail cap 42, and pitman 50 is fixed in the tail cap 42 of pedicle screw 40.
Further, rotatable cutting ferrule part 420 is set in actuating sleeve 400, cutting ferrule part 420 and pressure cylinder 300 are fixed, set in cutting ferrule part 420
There are the first guide ledges 422, the first guide ledges 422 cooperate with limit through slot 150 and/or the first guide groove 130 guiding；Or
The inner wall of matching hole 310 is equipped with the second guide ledges, the second guide ledges and limit through slot 150 and/or the first guide groove 130
Guiding cooperation.And then using the first guide ledges 422 or the second guide ledges come logical with limit through slot 150 and/or the first guiding
The guiding cooperation of slot 130, when so that actuating sleeve 400 driving 300 moving movement of pressure cylinder, pressure cylinder 300 is not rotated；Simultaneously this first
The inner wall of guide ledges 422 or the second guide ledges insertion limit through slot 150 and/or the first guide groove 130 and pressure cylinder 300
It fits with the outer wall of sleeve 10, and then certain supporting role is played to hollow, fluting cylinder 100, prevent 10 stress of sleeve
Deformation.
As shown in Figures 1 and 2, in the present embodiment, clamping head 110 includes two spaced clamps 112 and setting
The first guide groove 130 and the second guide groove 140, clamp are equipped between the elastic slice 114 on clamp 112, two clamps 112
112 are equipped with clip slot 106, and elastic slice 114 is equipped with protrusion 108.And then using the clip slot 106 of clamp 112 and pedicle screw 40
The socket cooperation of tail cap 42, using on elastic slice 114 protrusion 108 and the limit hole of tail cap 42 fasten, and then by clamping head 110
It is fixed in tail cap 42, realization sleeve 10 is fixedly connected with pedicle screw 40；When the two needs to dismantle, solution need to be only utilized
Lock rifle makes the protrusion 108 of elastic slice 114 pop up, separate with limit hole, which can extract out from tail cap 42, realizes set
The separation of cylinder 10 and pedicle screw 40.
The shape of the cylinder 100 can there are many shapes, such as the combination of cylindrical body, cylindrical body and polygonal body.Such as Fig. 2
Shown, in the present embodiment, the outer wall of cylinder 100 sets there are two the confined planes being oppositely arranged and is set between two confined planes
Two arc surfaces, the first guide groove 130 and the ipsilateral setting of one of confined planes, the second guide groove 140 and another limit
The ipsilateral setting of plane makes the cylinder 100 convenient for being sleeved and fixed, and reduces extruding force when being sleeved and fixed to increase frictional retaining force,
And then cylinder 100 and pressurizer cooperation can be reduced so that deflection.
In the present embodiment, the end that compresses for compressing body compresses groove equipped with compatible with pitman, and then by compressing
Groove makes to compress body and being bonded for pitman is close, and the process of compressing will not deviate or misplace.It further, further include strutting machine
Structure, spreading mechanism are used to adjusting and fixing the spacing between two sleeves.Spreading mechanism, which is that distraction forcep, pressurized clamp etc. are existing, to be strutted
Equipment.
As shown in Fig. 3 and Fig. 7 to Figure 11, based on above-mentioned for installing the auxiliary device of pitman, the utility model is also mentioned
For one kind, under the guiding role of each guidance feature of auxiliary device, lower stick is worn in rod motion, and pitman can be guaranteed pre-
If moving in track, set that stick position is accurate, effect is good, without repeatedly wearing stick, and after pitman is placed in vivo, no rotary movement,
Alleviate operation tissue damage caused by patient.Specifically, this method comprises the following steps:
(1) two pedicle screw intervals are fixedly arranged on predeterminated position, two sleeves are individually fixed in the corresponding vertebra
In the tail cap of pedicle screw, two card slots of the tail cap respectively with the first guide groove of the sleeve and the second guide groove phase
It is logical；
(2) move down pitman along the depth direction of the wherein through-hole of a sleeve, the pitman
Free end and guide wall guiding cooperate；
(3) pitman is continued to move to, the free end of the pitman is made to import institute by the guide wall of the sleeve
It states in the second guide groove of sleeve；
(4) the second guide groove, simultaneously that the pitman makes the free end of the pitman pass through the sleeve is overturn again
It is mobile to the second guide groove of sleeve described in another, it is set to the pitman in two sleeves；
(5) angle of the pitman on two sleeves is adjusted, the pitman is pushed, the pitman is set
In the card slot of the tail cap of two pedicle screws；
(6) spacing between two pedicle screws is adjusted, lock-screw is tightened, pitman is fixed on tail cap.
Method that is above-mentioned, entering pitman can along the length direction of sleeve longitudinally sets stick side relative to existing transverse direction
Formula provides and a kind of new sets bar mode；When applied to spinal surgery, this longitudinal entrance sets bar mode and can reduce pitman
Into the wound area of first sleeve worn at stick, it is more conducive to the rehabilitation of patient, while without operation of repeatedly exposing the false, it can
Reduce patient tissue damage and bleeding.
Above-mentioned further includes that one end of the pitman is connect with the socket part for holding stick device, further includes described in step (2)
The limit body for holding stick device cooperates with the limit of the limiting slot of two casings respectively, keeps second guide groove of two sleeves opposite
Claim, while stick device held by driving, moves down the pitman along the depth direction of the wherein through-hole of a sleeve,
Overturning holds stick device and is set to the pitman in two sleeves simultaneously, then by adjusting holding the angle of stick device come the company of adjustment
The angle taken over the baton on two sleeves, makes to hold stick device and separates with pitman, pushes the pitman, sets the pitman
It is placed in the card slot of the tail cap of two pedicle screws.And then two sets can be realized using the limit body for holding stick device
Second guide groove of cylinder is symmetrical, and then can be improved and be moved to separately in drive connection stick from the second guide groove of a sleeve
The accuracy of second guide groove of one sleeve.It further, further include being set to the second of two sleeves in pitman to lead
To before through slot, this is held the limit body of stick device and cooperates always with the limit through slot of two sleeves and the limit of the first guide groove, makes
The second guide groove alignment of two sleeves.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies 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, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of sleeve, which is characterized in that including cylinder, the cylinder includes the first end and second end being oppositely arranged, described
The second end of cylinder is equipped with the clamping head that snaps connection for the tail cap with pedicle screw, and the cylinder is equipped with through described the
The through-hole of one end and the second end, the side wall of the through-hole are equipped with the first guide groove, opposite with first guide groove
The second guide groove, limit through slot and guide wall, first guide groove being arranged are through to second end from the first end
Setting, second guide groove are arranged through the second end, and the limit through slot is arranged through the first end, described to lead
It is set between second guide groove and the limit through slot to wall.
2. sleeve according to claim 1, which is characterized in that be equipped between the limit through slot and the guide wall round and smooth
First introduction part of transition is equipped with the second introduction part of rounding off between second guide groove and the guide wall.
3. sleeve according to claim 1, which is characterized in that the first end of the cylinder is equipped with external thread structure or institute
The second end for stating cylinder is equipped with internal thread structure.
4. sleeve according to claim 1, which is characterized in that the outer wall of cylinder set there are two the confined planes that are oppositely arranged and
Two arc surfaces being set between two confined planes, the first guide groove and the ipsilateral setting of one of confined planes, second leads
To through slot and the ipsilateral setting of another confined planes.
5. sleeve according to any one of claims 1 to 4, which is characterized in that the clamping head includes two interval settings
Clamp and the elastic slice that is set on the clamp, be equipped with first guide groove and described second between two clamps
Guide groove, the clamp are equipped with clip slot, and the elastic slice is equipped with protrusion.
6. a kind of for installing the auxiliary device of pitman, which is characterized in that including such as described in any one of claim 1 to 5
Sleeve, the sleeve at least two further include holding stick device, and the stick device of holding includes socket part and limit body, the socket part
It is set to the free end of the limit body, the limit body can be with the limit through slot of at least two sleeves and described first
Guide groove limit cooperation, it is described to hold stick device and be detachably connected by the socket part with pitman.
7. according to claim 6 for installing the auxiliary device of pitman, which is characterized in that it further include pressure cylinder component,
The pressure cylinder component includes pressure cylinder and the actuating sleeve that is rotatably connected with one end of the pressure cylinder, the pressure cylinder be equipped be arranged it is described
The matching hole of sleeve, one end of the pressure cylinder are equipped with the body that compresses of protrusion setting, and the body that compresses is used to compress the pitman,
The actuating sleeve is equipped with the internal thread hole that cooperation is connect with the external thread structure, and the rotation of the actuating sleeve is able to drive institute
The length direction that pressure cylinder is stated along the sleeve moves back and forth.
8. according to claim 7 for installing the auxiliary device of pitman, which is characterized in that setting in the actuating sleeve can
The cutting ferrule part of rotation, the cutting ferrule part are fixed with the pressure cylinder, the first guide ledges are equipped in the cutting ferrule part, described first leads
Cooperate to boss and the limit through slot and/or first guide groove guiding；Or the inner wall of the matching hole is equipped with second
Guide ledges, second guide ledges and the limit through slot and/or first guide groove guiding cooperate.
9. described in any item for installing the auxiliary device of pitman according to claim 7 or 8, which is characterized in that described to support
The end that compresses of laminate compresses groove equipped with compatible with the pitman.
10. according to claim 6 for installing the auxiliary device of pitman, which is characterized in that it further include spreading mechanism,
The spreading mechanism is used to adjusting and fixing the spacing between two sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721514342.0U CN208551991U (en) | 2017-11-14 | 2017-11-14 | Sleeve and auxiliary device for installing pitman |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721514342.0U CN208551991U (en) | 2017-11-14 | 2017-11-14 | Sleeve and auxiliary device for installing pitman |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208551991U true CN208551991U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721514342.0U Withdrawn - After Issue CN208551991U (en) | 2017-11-14 | 2017-11-14 | Sleeve and auxiliary device for installing pitman |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208551991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107736925A (en) * | 2017-11-14 | 2018-02-27 | 山东威高骨科材料股份有限公司 | The installation method of sleeve, the servicing unit for installing pitman and pitman |
-
2017
- 2017-11-14 CN CN201721514342.0U patent/CN208551991U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107736925A (en) * | 2017-11-14 | 2018-02-27 | 山东威高骨科材料股份有限公司 | The installation method of sleeve, the servicing unit for installing pitman and pitman |
| CN107736925B (en) * | 2017-11-14 | 2020-03-24 | 山东威高骨科材料股份有限公司 | Sleeve, auxiliary device for installing connecting rod and installation method of connecting rod |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190301 Effective date of abandoning: 20200324 |
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| AV01 | Patent right actively abandoned |