CN205924151U - Bone cement mould combination lag screw and compound bottle opener - Google Patents
Bone cement mould combination lag screw and compound bottle opener Download PDFInfo
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- CN205924151U CN205924151U CN201620213755.4U CN201620213755U CN205924151U CN 205924151 U CN205924151 U CN 205924151U CN 201620213755 U CN201620213755 U CN 201620213755U CN 205924151 U CN205924151 U CN 205924151U
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Abstract
The utility model discloses a bone cement mould makes up lag screw and is used for the bone cement injection system and compound bottle opener of this screw of bone, bone cement mould combination lag screw includes that bone cement mould combination lag screw includes subassembly A and subassembly B, bone cement injection system includes subassembly C and subassembly D, compound bottle opener includes interior bottle opener E and outer bottle opener F, subassembly C and subassembly D and subassembly A and the work of mutually supporting of subassembly B, inject bone cement, interior bottle opener E and outer bottle opener F and subassembly A and the work of mutually supporting of subassembly B, consolidate the screw. Provided is a bone cement mould combination lag screw can carry out the secondary and consolidate, and the reinforcement effect is better, through the directional disperse of bone cement injection system's ration, reduce the bone cement consumption, reduce the risk of bone cement monomer toxicity, compound bottle opener is big with the mutual area of contact of bone cement mould combination lag screw, and the bottle opener is to the control of screw, the convenient operation when more being favorable to operating, easily take out at the completion postsurgical.
Description
Technical field
This utility model is related to medical fracture fixation device, is more particularly, to applied to reset between sclerite, pressurizes simultaneously
The internal fixation system of strong fixation, and supporting bone cement injecting systems and special composite screwdriver.
Background technology
Treating the fracture that some needs are performed the operation, such as：Articular fracture, Odontoid process etc., need to pass through to add by lag screw
The mode of pressure realizes the strong fixation fractured.The related biomechanical principle of this Therapeutic Method is as follows：Lag screw relies on pad
Between piece or blade plate and cortical bone formed axial compression stress, between sclerite formed pressor effect, realize sclerite it
Between strong fixation.During the fixing fracture of application lag screw, compressive stress be can realize fracturing strong fixation key because
Element；Bone mass is one of key factor of impact compressive stress, when being associated with the skeleton of osteoporosis, due to bone mass
Decline substantially, usual pulling force screw cannot realize the strong fixation of pressurization fractured.
At present clinically, solve the usual scheme of this problem：It is that AO lag screw combines cement augmentation technology, specifically
As follows：In the punching of skeleton suitable position, inject a certain amount of bone cement in nail, make bone cement in nail and around hole
Disperse in spongy bone, is then implanted into AO lag screw in the appropriate time, pressurizes and fixing fracture.Although this scheme is biological
Mechanical advantage substantially, but is not widely used in clinic, because there are many unfavorable factors：Such as bone cement disperse controls tired
The difficult, operating time restricted (must before bone cement solidification pedicle screw, and complete the fixing fracture of the pressurization of screw), bone water
Mud monomer toxicity, screw such as are not easily taken out at the dispute.This technology also has that AO lag screw is intrinsic, such as simultaneously：AO draws
Power tip of screw soft tissue interference problem etc..
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bone-cement type combination broach screw system, and bone cement is noted
Penetrate system and its special composite screwdriver：First, being capable of whole effects that screw combines cement augmentation technology；Second, it is aobvious
Write the consumption reducing bone cement, reduce the risk of bone cement monomer toxicity；Third, avoiding operation time to limit sex chromosome mosaicism；
Fourth, realizing the quantitative disperse of bone cement orientation；Fifth, screw is formed with bone interface fixing biology, reducing long-term loosening may；
Sixth, being conducive to operating, reducing the learning curve gradient, reducing as far as possible and relying on doctors experience；Seventh, reducing tip of screw soft tissue
Annoyance level；Eighth, screw can partly take out, when tip of screw soft tissue annoyance level weight, need taking-up screw soft to eliminate
During tissue interference, reduce the difficulty that screw takes out.
For solving above-mentioned technical problem, this utility model provides following technical scheme：
A kind of bone-cement type combination broach screw, including：Described bone-cement type combination broach screw includes assembly A and assembly
B；
Described assembly A includes the first screw thread 2 and the second screw thread 3, and the inside of described assembly A is cavity 1, described first spiral shell
The bone cement disperse hole 4 that several extend through thread outer surface, described cavity 1 and described bone are provided with the intracavity sidewall of stricture of vagina 2
Cement disperse hole 4 is connection, and the afterbody of the second screw thread 3 is hollow prism shape structure 5；
Described assembly B is hollow structure inside, and the side of described assembly B is provided with and is connected with assembly A second screw thread (3)
3rd screw thread 6, described assembly B opposite side is provided with hemispherical hollow structure 7, and described hemispherical hollow structure 7 end is provided with
Cross-shaped groove structure 8.Certainly, the Flos Mume groove of similar cross-shaped groove structure or other similar structures being capable of fixation kit B are also and are somebody's turn to do
The structure that technical characteristic phase is equal to, belongs to this patent protection domain.
As a kind of a kind of priority scheme of bone-cement type combination broach screw described in the utility model：Described bone cement
Disperse hole 4 is arranged at the side deviating from screw direction of advance of the first screw thread 2 convex shape screw thread.
If because the side setting bone cement disperse hole towards screw direction of advance of the first screw thread 2 convex shape screw thread,
For screw pressurization, fixing, skeleton recovery purposes less, the consumption of bone cement can be increased on the contrary.Using this patent scheme, energy
Enough more preferably control bone cement disperse directions, improve effect, reduce consumption.
As a kind of a kind of priority scheme of bone-cement type combination broach screw described in the utility model：Described bone cement
The Way out in disperse hole 4 is perpendicular to the axis of described combination broach screw.With advantageously in bone cement disperse effect.
As a kind of a kind of priority scheme of bone-cement type combination broach screw described in the utility model：Described assembly A
Cavity 1 one end perforate in the second screw thread 3, the other end is located in the shaft core of the first screw thread 2, is closing or runs through screw
It is in communication with the outside；
Described first screw thread 2, the second screw thread 3 and the 3rd screw thread 6 are coaxial threaded, and the pitch of the first screw thread 2 and screw thread are deep
Degree is more than the second screw thread 3, the 3rd screw thread 6；Second screw thread 3 is identical with the pitch of the 3rd screw thread 6 and the depth of thread, the second screw thread 3
It is mutually matched with the 3rd screw thread 6 to realize the connection of assembly A and assembly B.
As a kind of a kind of priority scheme of bone-cement type combination broach screw described in the utility model：Described first spiral shell
It is provided with the smooth cylindrical stem of hollow 22, described hollow smooth cylindrical stem 22 surface is arranged between stricture of vagina 2 and the second screw thread 3
There is the first graduation mark 23；It is provided with non-threaded portion 24 between 3rd screw thread 6 of described assembly B and hemispherical hollow structure 7, described
Non-threaded portion 24 surface is provided with the second graduation mark 25.
As a kind of a kind of priority scheme of bone-cement type combination broach screw described in the utility model：Described assembly B
The end of hemispherical hollow structure 7 be flat.Arc with respect to the hemispherical dome structure end of AO lag screw one end setting
Face, bone-cement type combination broach tip of screw incisura is low, and the space of occupancy is little, soft tissue is disturbed little, but its unique texture
Bottle opener can be increased is in contact with it face again for design, is easy to fix, screws.
A kind of bone cement injecting systems for bone-cement type combination broach screw described in the utility model：Including assembly C
With assembly D；
Described assembly C is hollow cylindrical structure, including the first hollow cylindrical structure 9 and the second hollow cylindrical structure 10, institute
State the first hollow cylindrical structure 9 surface to be provided with the 3rd graduation mark 11 or there is no scale, described first hollow cylindrical structure 9 straight
Footpath is more than the diameter of described second hollow cylindrical structure 10, one end of described first hollow cylindrical structure 9 and described second hollow
Column structure 10 connects, and the other end is provided with flat distal end 12；
Described assembly D is column structure, including the first column structure 13 and the second column structure 14, described first cylinder knot
Structure 13 is fitted close with described first hollow cylindrical structure 9, and described second column structure 14 is tight with the second hollow cylindrical structure 10
Close fit.
A kind of composite screwdriver for bone-cement type combination broach screw described in the utility model：Including in bottle opener E and outer
Bottle opener F；
Described interior bottle opener E includes the first cylindrical handle 16 and the second cylindrical stem 17, described second cylindrical stem
17 ends are prismatic structure 18, the prismatic structure 18 of described interior bottle opener interior hollow arranging with described assembly A the second screw thread 3
Prismatic structure 5 is mutually matched；
Described outer bottle opener F is hollow structure, including the 3rd cylindrical handle 19 and the 4th cylindrical stem 20, the described 4th
Cylindrical stem 20 end is crosswise structure 21, crosswise structure 21 and the described assembly B hemispherical hollow of described outer bottle opener
In structure 7, the cross-shaped groove structure 8 of setting is mutually matched；
The overall diameter of second cylindrical stem 17 of described interior bottle opener E is less than or equal to the hollow structure of described outer bottle opener F
Interior diameter, second cylindrical stem 17 of described interior bottle opener cylinder E pass through the hollow structure of described outer bottle opener F realize in rise
Sub- E and outer bottle opener F combination；The length of described interior bottle opener E the second cylindrical stem 17 is more than the cylindrical stem of described outer bottle opener F
20 length；
It is provided with latch-up structure 29 between the interior bottle opener E of described composite screwdriver and outer bottle opener F.
A kind of preferred version as the composite screwdriver for bone-cement type combination broach screw described in the utility model：
One end of first cylindrical handle 16 of described interior bottle opener E and the second cylindrical stem 17 connection is provided with hollow cylindrical structure
26, when interior bottle opener E and outer bottle opener F combines, the 3rd cylindrical handle 19 part of described outer bottle opener F is located in interior bottle opener E
In hollow-cylindrical structure 26, described 3rd cylindrical handle 19, hollow cylindrical structure 26 and the first cylindrical handle 16 are constituted
The handle of composite screwdriver.
A kind of preferred version as the composite screwdriver for bone-cement type combination broach screw described in the utility model：
First cylindrical handle 16 surface of described interior bottle opener E arranges angled 4th graduation mark 27, the 3rd cylinder of described outer bottle opener F
Shape handle 19 surface is provided with the 5th angle index line 28.
Following Advantageous Effects are at least had using technical scheme described in the utility model：
First, bone-cement type combination broach screw is implanted in skeleton by special composite screwdriver, and fracture with compressive effect is occurring
Before, special screwdriver is an entirety, no relative motion between inside and outside bottle opener, therefore bone-cement type combination broach screw be one whole
Body, no relative motion between assembly A and assembly B；Now, the prismatic structure 18 of interior bottle opener and assembly A hollow prism shape structure
5, outer bottle opener crosswise structure 21 and assembly B cross-shaped groove structure 8, this two groups of structures form special screwdrivers and bone-cement type combination is drawn
The multiple coupling of power screw, compared with AO lag screw and supporting bottle opener, the composite screwdriver of this patent and bone-cement type combine
Lag screw contacts with each other area greatly, is more beneficial for the control to screw for bottle opener during operation, convenient operation.
2nd, the hemispherical hollow structure 7 of bone-cement type combination broach screw one end setting, its end is level, relatively
In the arcwall face of the hemispherical dome structure end of AO lag screw one end setting, bone-cement type combination broach tip of screw incisura is low,
The space taking is little, soft tissue is disturbed little.
3rd, bone cement injecting systems are passed through bone cement is quantitative fixed through the cylindrical cavity 1 of assembly A, bone cement disperse hole 4
To disperse, realize bone cement disperse and the optimization of dosage, reduce bone cement consumption, reduce the risk of bone cement monomer toxicity.
4th, a kind of bone-cement type combination broach screw system and its special screwdriver carry out fracture with compressive fixing during,
The first step is that the implantation of bone-cement type combination broach screw, second step are the injections of bone cement and solidification, the 3rd step are bone cements
The pressurization to fracture for the type combination broach screw, these three steps are steps that carry out successively, independent, and three steps are mutually not
Interference, operation no strict time limit, be more beneficial for doctor grasp related medical technical ability, the gentle gradient of learning curve, favorably
In the formation of standard and the popularization of technology.
5th, during bone-cement type combination broach screw pressurization fixation is fractured and maintained fracture stabilization, bone can be grown into
In surface-treated assembly B micropore, forming synostosis, thus obtain biology fixing, further increasing bone-to-bone cement
The stability of type combination broach screw interface, reduces the fixing probability loosening in long term.
6th, when screw tail tissue disturbs, need to take out it is only necessary to take out assembly B during screw, and cement augmentation
Fixing assembly A indwelling, in internal, takes out the difficulty of lag screw when reducing the fixing fracture of lag screw joint bone cement technology
Degree.
Brief description
Fig. 1 is a kind of structural representation of the assembly A of bone-cement type combination broach screw of this utility model one embodiment
Figure；
Fig. 2 is the end view that Fig. 1 observes from screw afterbody；
Fig. 3 is a kind of structural representation of the assembly B of bone-cement type combination broach screw of this utility model one embodiment
Figure；
Fig. 4 is the end view that Fig. 3 observes from afterbody；
Fig. 5 is that a kind of assembly A of bone-cement type combination broach screw of this utility model one embodiment is combined with assembly B
Structural representation；
Fig. 6 is a kind of bone cement injection system for bone-cement type combination broach screw of this utility model one embodiment
The structural representation of the assembly C of system；
Fig. 7 is a kind of bone cement injection system for bone-cement type combination broach screw of this utility model one embodiment
The structural representation of the assembly D of system；
Fig. 8 is a kind of bone cement injection system for bone-cement type combination broach screw of this utility model one embodiment
The structural representation that system assembly C, D combine；
Fig. 9 is in a kind of composite screwdriver for bone-cement type combination broach screw of this utility model one embodiment
The structural representation of bottle opener E；
Figure 10 is a kind of composite screwdriver for bone-cement type combination broach screw of this utility model one embodiment
The structural representation of outer bottle opener F；
Figure 11 is in a kind of composite screwdriver for bone-cement type combination broach screw of this utility model one embodiment
The structural representation that outer bottle opener combines.
Figure 12 is structure when this utility model bone cement injecting systems are used with bone-cement type combination broach screw association
Schematic diagram.
Structural representation when composite screwdriver is used with bone-cement type combination broach screw association in Figure 13 this utility model.
In Figure 14 bone-cement type described in the utility model combination broach screw placement skeleton structural representation.
The assembly B of Figure 15 this utility model bone-cement type combination broach screw is by the structural representation after taking-up from skeleton
Figure.
The title of the corresponding component represented by figure numeral：
1. cavity, 2. the first screw thread, 3. the second screw thread, 4. bone cement disperse hole, 5. hollow prism shape structure, 6. the 3rd spiral shell
Stricture of vagina, 7. hemispherical hollow structure, 8. cross-shaped groove structure, 9. the first hollow cylindrical structure, 10. the second hollow cylindrical structure, 11.
Three graduation marks, 12. flat distal end, 13. first column structures, 14. second column structures, 15. flat ends, 16. first cylinders
Shape handle, 17. second cylindrical stem, 18. prismatic structures, 19. the 3rd cylindrical handle, 20. the 4th cylindrical stem,
The crosswise structure of 21. outer bottle openers, the smooth cylindrical stem of 22. hollows, 23. first graduation marks, 24. non-threaded portions, 25. second
Graduation mark, 26. hollow cylindrical structures, 27. the 4th graduation marks, 28. the 5th angle index lines, 29. latch-up structures.Assembly A with
Assembly B is bone-cement type combination broach screw, and assembly C and assembly D constitutes bone cement injecting systems, interior bottle opener E and outer bottle opener F structure
Become composite screwdriver, G is bone cement.
Specific embodiment
1 to accompanying drawing 15 is injected to bone-cement type combination broach screw described in the utility model, bone cement below in conjunction with the accompanying drawings
System and composite screwdriver are described in further detail.
As Figure 1-Figure 5, this utility model discloses a kind of bone-cement type combination broach screw, including assembly A and assembly
B.
Fig. 6-Fig. 8 is a kind of bone cement injecting systems assembly for bone-cement type combination broach screw of this utility model
C, assembly D schematic diagram, and the structural representation combining.
Fig. 9-Figure 11 is a kind of being combined for bone-cement type combination broach screw of this utility model one embodiment
The structural representation of the interior bottle opener E of son；The structural representation of outer bottle opener F；The structural representation that inside and outside composite screwdriver, bottle opener combines.
Figure 12 is structure when this utility model bone cement injecting systems are used with bone-cement type combination broach screw association
Schematic diagram；Structural representation when composite screwdriver is used with bone-cement type combination broach screw association in Figure 13 this utility model；
In Figure 14 bone-cement type described in the utility model combination broach screw placement skeleton structural representation；Figure 15 this utility model
The assembly B of bone-cement type combination broach screw is by the structural representation after taking-up from skeleton.
As shown in figure 1, assembly A includes the first screw thread 2 and the second screw thread 3.The inside of assembly A is cavity 1.First screw thread
The bone cement disperse hole 4 that several extend through thread outer surface is provided with 2 intracavity sidewall.Cavity 1 and bone cement disperse hole 4
It is connection.The afterbody of the second screw thread 3 is hollow prism shape structure 5.Assembly B is hollow structure inside.The side setting of assembly B
There is the 3rd screw thread 6 being connected with assembly A the second screw thread 3, assembly B opposite side is provided with hemispherical hollow structure 7.Hemispherical hollow
Structure 7 includes cross-shaped groove structure 8.Described cross-shaped groove structure 8 can also be other similar structures such as Flos Mume groove.
In the present embodiment, what bone cement disperse hole 4 was arranged at the first screw thread 2 convex shape screw thread deviates from screw advance side
To side.Contribute to realizing the pressurization to screw and fixation by less bone cement.The Way out in bone cement disperse hole 4
Perpendicular to the axis of combination broach screw, be conducive to the disperse of bone cement, somewhat have some angles of inclination to fall within equivalent structure.
One end perforate of the cavity 1 of assembly A is located in the shaft core of the first screw thread 2 in the second screw thread 3, the other end, is to close or pass through
Wear what screw was in communication with the outside；First screw thread 2, the second screw thread 3 and the 3rd screw thread 6 are coaxial threaded, the pitch of the first screw thread 2 and
The depth of thread is more than the second screw thread 3, the 3rd screw thread 6；Second screw thread 3 is identical with the pitch of the 3rd screw thread 6 and the depth of thread, and second
Screw thread 3 and the 3rd screw thread 6 are mutually matched to realize the connection of assembly A and assembly B.Arrange between first screw thread 2 and the second screw thread 3
There is the smooth cylindrical stem of hollow 22, the smooth cylindrical stem of hollow 22 surface is provided with the first graduation mark 23；The 3rd of assembly B
It is provided with non-threaded portion 24, non-threaded portion 24 surface is provided with the second graduation mark 25 between screw thread 6 and hemispherical hollow structure 7.
Described bone cement disperse hole 4 and cavity 1 constitute bone cement transfer structure, and bone cement is through cavity 1, bone cement disperse hole
4 disperses in the first screw thread 2 around, may refer to accompanying drawing 14-15.Second screw thread 3 is mutually matched with the 3rd screw thread 6 and is connected, real
The connection of existing assembly A and assembly B, the second screw thread 3 end arranges hollow prism shape structure 5, with interior bottle opener end prismatic structure
18 are mutually matched, the control to assembly A for the bottle opener in realization.
The outer surface of assembly B can be smooth or be provided with sandblasting, porous and hydroxyapatite coating layer and other rush
Enter the micropore of Bone Ingrowth material process formation.Second screw thread 3 and the 3rd screw thread 6 are mutually matched the company realizing assembly A and assembly B
Connect；The hemispherical hollow structure 7 that the assembly B other end is provided with terminal horizontal includes cross-shaped groove structure 8.Bone-cement type combination broach
The hemispherical hollow structure 7 of screw one end setting, its end is level, with respect to the hemispherical of AO lag screw one end setting
The arcwall face of structure end, bone-cement type combination broach tip of screw incisura is low, and the space of occupancy is little, soft tissue is disturbed little.
As shown in fig. 6, assembly C is hollow circuit cylinder spline structure, by the first hollow cylindrical structure 9 and the second hollow cylindrical structure
10 compositions, the first hollow circuit cylinder spline structure 9 surface is provided with the 3rd graduation mark 11, and one end is provided with flat distal end 12, the other end
It is connected with the second hollow cylindrical structure 10.
As shown in fig. 7, assembly D is cylinder spline structure, it is made up of the first column structure 13 and the second column structure 14.
As shown in figure 9, interior bottle opener E is made up of the first cylindrical handle 16 and the second cylindrical stem 17, first is cylindrical
One end of handle 16 and the second cylindrical stem 17 connection is provided with hollow cylindrical structure 26；First cylindrical handle 16 surface
4th graduation mark 27 is set, and the second cylindrical stem 17 end is prismatic structure 18, the hollow of prismatic structure 18 and assembly A
Prismatic structure 5 is mutually matched, to realize the control to assembly A for the interior bottle opener.Described interior bottle opener can be hollow, in order to gram
Family name's pin passes through it is also possible to not be hollow.
As shown in Figure 10, outer bottle opener F is hollow structure, by the 3rd cylindrical handle 19 and the 4th cylindrical stem 20 structure
Become, the 3rd cylindrical handle 19 surface is provided with the 5th angle index line 28, and the 4th cylindrical stem 20 is provided with latch-up structure
29, end is crosswise structure 21.Latch-up structure 29 acts on interior bottle opener the second cylindrical stem 17, and now interior bottle opener rises with outer
Sub- mutually locking, constitutes an entirety；Crosswise structure 21 is mutual with the cross-shaped groove structure 8 of setting in assembly B hemispherical dome structure
Coupling, to realize the control to assembly B for the outer bottle opener F.
Technical scheme described in this utility model goes for multiple fractures, particularly with difficulties such as osteoporosises
In the case of fractures there is more preferable effect.Lower mask body combines relevant this utility model institute in fracture of the tibial plateau operation
State the use process of device, be described in detail：
The first step：By standard procedures flow process, sterilization paving is single and exposes fracture by standard procedures approach, resets and utilizes kirschner
Pin fixing fracture temporarily, perspective confirms that the reduction of the fracture is good；Turned with electro-medical and punch and measure nail depth through Kirschner wire, according to
The nail depth recording；Select appropriate length bone-cement type combination broach screw, and assemble so that the end of assembly B and
Assembly A the first graduation mark 23 is concordant.It is of course also possible to according to different fracture situation, determine the initial assembling between assembly A, B
Position.
Second step：Interior bottle opener the second cylindrical stem 17 passes through outer bottle opener hollow structure, locks latch-up structure 29, now interior
Bottle opener and outer bottle opener one entirety of composition are so that the prismatic structure 18 hollow prism shape that arrange interior with assembly A the second screw thread 3 is tied
Structure 5 is mutually matched, to realize the control to assembly A for the interior bottle opener, crosswise structure 21 and ten of setting in assembly B hemispherical dome structure
Word slot structure 8 is mutually matched, and to realize the control to assembly B for the outer bottle opener, now, tightens bottle opener and outer bottle opener in latch-up structure 29
Constitute the entirety of a locking.
3rd step：Bone-cement type combination broach screw is screwed into by skeleton by the composite screwdriver having locked, until assembly B
High scale is concordant with bone face, the step for key be：(1) operator hold simultaneously composite screwdriver the 3rd cylindrical handle 19,
Hollow cylindrical structure 26 and the first cylindrical handle 16, it is to avoid individually hold the 3rd cylindrical handle 19 or first cylindrical
Handle 16, to avoid because improper operation leads to there is relative motion between inside and outside bottle opener；(2) the semicircle hollow of assembly B
Structure 7 is near bone face but contactless with bone face.
4th step：Remove composite screwdriver, assembly C and assembly D is mutually matched, constitute bone cement injecting systems, and according to
The concrete state of an illness extracts the bone cement of suitable dose.
5th step：By assembly C the second hollow cylindrical structure 10 through the cylindrical cavity 1 of assembly B hollow structure plug-in package A
In, bone cement is injected, bone cement is through cylindrical cavity 1, bone cement disperse hole 4 disperse in the first screw thread 2 surrounding cancellous bone
Interior.
6th step：According to the state of an illness and bone cement consumption, by bone cement injecting systems from bone-cement type after wait right times
Take out in combination broach screw, need rotary components C for a period of time at this, assembly C and assembly A is connected into one by prevention bone cement
Individual entirety.
7th step：After waiting right times, bone cement solidifies completely, and now, assembly A is effectively fixed on skeleton by bone cement
Interior, unclamp latch-up structure 29, handss fix interior bottle opener E, another handss rotate the handle of outer bottle opener F, by outer bottle opener
In crosswise structure 21 and assembly B hemispherical dome structure, the cross-shaped groove structure 8 of setting is mutually matched, and rotary components B is so that assembly B
Move to assembly A along screw axis, and assembly A now remains stationary as.Assembly B constantly advance under the drive of outer bottle opener so that
The continuous cripetura of bone-cement type combination broach screw bar portion, thus realize pressurization between sclerite further.
8th step：According to operation needs, by identical flow process suitable position continue to be screwed into this device and other
Inside-fixture, until it reaches expected therapeutic effect.
9th step：Perspective confirms that the reduction of the fracture and interior fixed position are good again, after rinsing wound surface and definitely stopping blooding successively
It is seamed to skin.
According to the different state of an illness, the relative dimensions in operation can constantly adjust.
In rehabilitation course, according to the different state of an illness, when tip of screw soft tissue annoyance level is serious, need to take out screw with
When eliminating soft tissue interference, in operation, the use process about device described in the utility model is as follows：
The first step：By standard procedures flow process, sterilization paving is single and exposes bone-cement type combination broach spiral shell by standard procedures approach
Nail afterbody.
Second step：Mutual with the cross-shaped groove structure 8 of setting in assembly B hemispherical dome structure by outer bottle opener crosswise structure 21
Coupling, rotates and takes out assembly B, now assembly A indwelling, in bones, does not have soft tissue interference problem.Or use it
His bottle opener is good.
3rd step：According to operation needs, other bone-cement types combination broach screw assembly B portion is taken out by identical flow process
Point.
4th step：Rinse wound surface and be seamed to skin successively after definitely stopping blooding.
It should be noted that above example is only in order to illustrate the technical solution of the utility model and unrestricted, although reference
Preferred embodiment has been described in detail to this utility model, it will be understood by those within the art that, can be to this reality
Modified or equivalent with new technical scheme, without deviating from the spirit and scope of technical solutions of the utility model,
It all should be covered in the middle of right of the present utility model.
Claims (9)
1. a kind of bone-cement type combination broach screw it is characterised in that：Including：Described bone-cement type combination broach screw includes group
Part A and assembly B；
Described assembly A includes the first screw thread (2) and the second screw thread (3), and the inside of described assembly A is cavity (1), and described first
The bone cement disperse hole (4) that several extend through thread outer surface, described cavity (1) are provided with the intracavity sidewall of screw thread (2)
Connect with described bone cement disperse hole (4), the afterbody of described second screw thread (3) is hollow prism shape structure (5)；
Described assembly B is hollow structure inside, and the side of described assembly B is provided with the being connected with second screw thread (3) of assembly A
Three screw threads (6), described assembly B opposite side is provided with hemispherical hollow structure (7), and described hemispherical hollow structure (7) end sets
It is equipped with cross-shaped groove structure (8).
2. bone-cement type combination broach screw according to claim 1 it is characterised in that：Described bone cement disperse hole (4)
It is arranged at the side deviating from screw direction of advance of the first screw thread (2) convex shape screw thread.
3. bone-cement type combination broach screw according to claim 1 it is characterised in that：Described bone cement disperse hole (4)
Way out perpendicular to described combination broach screw axis.
4. bone-cement type combination broach screw according to claim 1 it is characterised in that：The cavity (1) of described assembly A
One end perforate is located in the shaft core of the first screw thread (2) in the second screw thread (3), the other end, is to close or run through screw with outward
Boundary's connection；
Described first screw thread (2), the second screw thread (3) and the 3rd screw thread (6) are coaxial threaded, the pitch of the first screw thread (2) and spiral shell
Stricture of vagina depth is more than the second screw thread (3), the 3rd screw thread (6)；The pitch of the second screw thread (3) and the 3rd screw thread (6) and depth of thread phase
With the second screw thread (3) and the 3rd screw thread (6) are mutually matched to realize the connection of assembly A and assembly B.
5. bone-cement type combination broach screw according to claim 1 it is characterised in that：Described first screw thread (2) and
It is provided with the smooth cylindrical stem of hollow (22), described hollow smooth cylindrical stem (22) surface is arranged between two screw threads (3)
There is the first graduation mark (23)；It is provided with non-threaded portion between 3rd screw thread (6) of described assembly B and hemispherical hollow structure (7)
(24), described non-threaded portion (24) surface is provided with the second graduation mark (25).
6. bone-cement type combination broach screw according to claim 1 it is characterised in that：In the hemispherical of described assembly B
The end of hollow structure (7) is flat.
7. a kind of composite screwdriver for bone-cement type combination broach screw described in claim 1 it is characterised in that：Rise including interior
Sub- E and outer bottle opener F；
Described interior bottle opener E includes the first cylindrical handle (16) and the second cylindrical stem (17), described second cylindrical stem
(17) end is prismatic structure (18), sets in the prismatic structure (18) of described interior bottle opener and described assembly A second screw thread (3)
Hollow prism shape structure (5) put is mutually matched；
Described outer bottle opener F is hollow structure, including the 3rd cylindrical handle (19) and the 4th cylindrical stem (20), the described 4th
Cylindrical stem (20) end is crosswise structure (21), the crosswise structure (21) of described outer bottle opener and described assembly B hemisphere
In shape hollow structure (7), the cross-shaped groove structure (8) of setting is mutually matched；
The overall diameter of second cylindrical stem (17) of described interior bottle opener E is less than or equal to the hollow structure of described outer bottle opener F
Interior diameter, second cylindrical stem (17) of described interior bottle opener cylinder E passes through the hollow structure of described outer bottle opener F to realize interior rising
Sub- E and outer bottle opener F combination；The length of described interior bottle opener E second cylindrical stem (17) is more than the cylindrical bar of described outer bottle opener F
The length in portion (20)；
It is provided with latch-up structure (29) between the interior bottle opener E of described composite screwdriver and outer bottle opener F.
8. the composite screwdriver for bone-cement type combination broach screw according to claim 7 it is characterised in that：Described interior
One end that first cylindrical handle (16) of bottle opener E and the second cylindrical stem (17) connect is provided with hollow cylindrical structure
(26), when interior bottle opener E and outer bottle opener F combines, the 3rd cylindrical handle (19) of described outer bottle opener F is partly located at interior bottle opener E
Hollow cylindrical structure (26) in, described 3rd cylindrical handle (19), hollow cylindrical structure (26) and first cylinder
Handle (16) constitutes the handle of composite screwdriver.
9. the composite screwdriver for bone-cement type combination broach screw according to claim 7 it is characterised in that：Described interior
First cylindrical handle (16) surface of bottle opener E arranges angled 4th graduation mark (27), and the 3rd of described outer bottle opener F is cylindrical
Handle (19) surface is provided with the 5th angle index line (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213755.4U CN205924151U (en) | 2016-03-18 | 2016-03-18 | Bone cement mould combination lag screw and compound bottle opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213755.4U CN205924151U (en) | 2016-03-18 | 2016-03-18 | Bone cement mould combination lag screw and compound bottle opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205924151U true CN205924151U (en) | 2017-02-08 |
Family
ID=57934248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620213755.4U Withdrawn - After Issue CN205924151U (en) | 2016-03-18 | 2016-03-18 | Bone cement mould combination lag screw and compound bottle opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205924151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662570A (en) * | 2016-03-18 | 2016-06-15 | 徐达强 | Bone cement type combined lag screw, bone cement injection system and compound screwdriver |
| CN110393582A (en) * | 2019-08-26 | 2019-11-01 | 河北医科大学第三医院 | A kind of external bone-fracture opening repositor |
-
2016
- 2016-03-18 CN CN201620213755.4U patent/CN205924151U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662570A (en) * | 2016-03-18 | 2016-06-15 | 徐达强 | Bone cement type combined lag screw, bone cement injection system and compound screwdriver |
| CN110393582A (en) * | 2019-08-26 | 2019-11-01 | 河北医科大学第三医院 | A kind of external bone-fracture opening repositor |
| CN110393582B (en) * | 2019-08-26 | 2020-11-24 | 河北医科大学第三医院 | External fracture distraction repositor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20190312 |