It fractures external fixed frame mounting assemblyTechnical field:
The invention belongs to locating rack technical fields of fracturing, and in particular to a kind of external fixed frame mounting assembly of fracture.
Background technique:
Outrigger fixation is common fracture fixation mode, and existing outrigger is fixed to mostly use that two sides are vertical squeezes into fixing glue to fracture,Then composition fixed frame is connected with each other by multiple universal joints and connecting rod, since universal joint needs lateral rotation and locked and perpendicularTo the adjusting relationship for rotating and locking, universal wheel volume is larger, and entire outer framework volume is bigger, after fracture patient is installed and usedInconvenient to carry, fracture site, which can not be worn, changes one's clothes, and influences activities involving foreign nationals, it would be highly desirable to develop a kind of easy to operate, easy to carry and appearanceThe fracture fixation outrigger being easily accepted by patients.
Summary of the invention:
There are various drawbacks for current fracture fixation mode in the present invention, provide that a kind of structure is simplified but practicability is betterExternal fixed frame mounting assembly of fracturing flexibly is taken action with achieving the purpose that minimally invasive and simplifying structure conducive to patient rehabilitation period, andReduce medical treatment cost.
Technical solution: a kind of external fixed frame mounting assembly of fracture, including dissection bar and one group of n-1 model orientation bar withAnd positioning sleeve and the n radially fixed nail of Y type, the integer of n >=4, each radially fixed nail of Y type is vertical to be fixed on two side seam of fractureOn matter layer, the upper end of each radially fixed nail of Y type is provided with Y type fork head, and middle part is set as light bar segment, and lower end is set as screw rodSection；Locking pin is installed at Y type fork head center, wherein internal screw thread is arranged in the inner wall of Y type fork head, and locking pin outer wall is provided with outer spiral shellLine, internal screw thread link together with external screw thread；Locking pin lower part and Y type fork head circumference dissect rod set and are mounted in the peace at installation spaceIt fills in space, the bottom of locking pin is supported on the upside of dissection bar；The dissection bar is with fracture site song to consistent arcBar, the model orientation bar are the fracture site songs in region between each radially fixed nail of Y type to consistent curved rod, the positioningSet includes transverse tube and the vertical guide pipe connecting with transverse tube ending vertical.
The inner wall of the transverse tube of the positioning sleeve is cylindrical hole, or is interior rib hole, transverse tube and each model orientation boom endWith installation.The inner wall of the transverse tube of the positioning sleeve is cylindrical hole, and inner sleeve is set in cylindrical hole, transverse tube and inner sleeve itBetween be connected with lock screw；The inner wall of the inner sleeve is provided with along axial parallel anti-rotation block machine.
In order to improve the strength of stability of single unit system, dissection rod outer surface can be provided with anti-skidding lamina, for example, by usingLine structure is protected, or pastes anti-slip layer.
The installation space bottom of the Y type fork head is lower arcuate surface, and dissection bar side face is bonded with lower arcuate surface matching, is protectedThe two face contact is held, face contact can ensure to dissect the stability of bar, neither rotate nor swing.
The invention has the following beneficial effects: 1. the configuration of the present invention is simple, can reduce as far as possible because patient is made in operationIt is traumatic at forming, it can reduce the volume and weight of patients ' convalescence support arm, improve patients ' convalescence action flexibility, subtractLight support arm is conducive to restore to the repressive of fracture site.
2. positioning operation of the present invention is simple, it is only necessary to surgical procedure can be completed by simple training study, simplify operationWorkload reduces operation cost.
3. the configuration of the present invention is simple is practical, manufacturing cost is low, reduces medical treatment cost.Less structure member is disinfection and dimensionIt is convenient that shield processing provides.It is not only easy installation, but also removes and is also easy.
Detailed description of the invention
Fig. 1 is use state diagram of the invention.
Fig. 2 is use state diagrammatic cross-section of the present invention.
Fig. 3 is the positive structure schematic of the radially fixed nail of Y type.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the A-A the schematic diagram of the section structure of Fig. 3.
Fig. 6 is the first fixing glue scheme of installation.
Fig. 7 is the 4th fixing glue scheme of installation.
Fig. 8 is third fixing glue scheme of installation.
Fig. 9 is the second fixing glue scheme of installation.
Figure 10 is each fixing glue and dissection bar installation condition schematic diagram.
Figure 11 is one of structural schematic diagram of positioning sleeve.
Figure 12 is the second structural representation of positioning sleeve.
Figure 13 is the third structural representation of positioning sleeve.
Figure label: 1 is dissection bar, and 2 be the radially fixed nail of Y type, and 21 be Y type fork head, and 22 be locking pin, and 23 be screw thread,24 be installation space, and 25 be lower arcuate surface, and 26 be light bar segment, and 27 be spiro rod section, and 2A is the first fixing glue, and 2B is second fixedNail, 2C are third fixing glue, and 2D is the 4th fixing glue, and 31 be model orientation bar one, and 32 be model orientation bar two, and 33 is fixed for modelPosition bar three, 4 be positioning sleeve, and 41 be transverse tube, and 42 be guide pipe, and 43 be interior rib hole, and 44 be inner sleeve, and 45 be anti-rotation block machine, and 46 areLock screw, 47 be cylindrical hole, and 5 be muscle layer, and 6 be bone bed.
Specific embodiment:
Embodiment 1: the external fixed frame mounting assembly of fracture as depicted in figs. 1 and 2, including dissection bar 1 and multiple Y types radial direction are admittedlySurely 2 are followed closely.Wherein, the radially fixed nail 2 of each Y type is vertical is fixed in fracture two sides bone bed 6, and dissection bar 1 is and fracturesPosition is bent to dissect the end that bar 1 is fixed on the radially fixed nail 2 of each Y type to consistent curved rod, constitute one it is fixed whole.Due toThe bent to consistent of bar 1 and fracture site is dissected, dissection bar 1 and fracture site less parallel state are able to maintain, so as to benefitFracture two sides position is connected and enhanced with dissection bar 1, guarantees that fracture site stablizes docking.
As shown in figure 3, the upper end of each radially fixed nail 2 of Y type is provided with Y type fork head 21, middle part is set as light bar segment 26,Lower end is set as spiro rod section 27.There is thread tapping on 27 surface of spiro rod section, and the spiro rod section 27 of the radially fixed nail 2 of Y type is screwed in bone bed 6It is interior, it is that light bar segment 26 is located in muscle layer 5.As it can be seen that external fixed frame of the invention is during installation, removing skin and flesh is not needed substantiallyLayer, or needed according to the operation of fracture situation and cut local muscle in order to surgical procedure.The radially fixed nail 2 of Y type can edgeIt is fixed by rotation inwardly into bone bed 6 outside muscle layer 5, it is very small to fracture patient wound, so that it is fast to be conducive to patientFast rehabilitation.
As shown in Figure 4 and Figure 5, locking pin 22 is installed at 21 center of Y type fork head, wherein the inner wall setting of Y type fork head 21Internal screw thread 23,22 outer wall of locking pin are provided with external screw thread 23, and internal screw thread 23 links together with external screw thread 23.22 lower part of locking pinInstallation space 24 is surrounded with Y type fork head 21, dissection bar 1 is sleeved on the bottom in the installation space 24, the bottom branch of locking pin 22It supports in the upside of dissection bar 1.
Since 24 bottom of installation space of Y type fork head 21 is lower arcuate surface 25, dissection 1 side of bar and the lower arcuate surface 25Both with fitting, i.e., be face contact, so when 22 pairs of dissection bars 1 of locking pin compress after, it can be ensured that dissect bar 1 with it is correspondingThe fitting completely of Y type fork head 21 is fixed as one, and will not both swing, and will not rotate.
Dissection bar 1 is eventually for the fixation member for being fixedly connected with the radially fixed nail 2 of each Y type, as shown in Figure 2.But pacifyingWhen filling the radially fixed nail 2 of Y type, it is thus necessary to determine that the position of each radially fixed nail 2 of Y type.As shown in fig. 6, first fixing glueIt pierces that position is relatively free, rule of thumb carries out piercing operation in the side bone bed 6 close to fracture by doctor.After first fixing glue is installed, the installation of remaining fixing glue needs the requirement of position range.It needs using more modelsLocating rod and fixing sleeve as shown in figure 11 carry out cooperation positioning and installation.
Not only dissection bar 1 is with fracture site song to consistent curved rod, but also each model orientation bar is also that each Y type is radialThe fracture site song in region is to consistent curved rod between fixing glue 2.After first fixing glue 1A installation, the installation of remaining fixing glueSequentially unlimited, the erection sequence from Fig. 6 to Figure 10 is the first fixing glue 1A, the 4th fixing glue 2D, third fixing glue 2C and secondFirst to fourth fixing glue 2D of fixing glue 2B(is the radially fixed nail of Y type), corresponding model orientation bar sequence is, the one theThe model orientation bar 1 of length between four fixing glue 2D, 2 32 He of model orientation bar of length between the first third fixing glue 2CThe model orientation bar 3 33 of length between the one the second fixing glue 2B.It is, of course, also possible to have other fixing glue erection sequences, such asFirst fixing glue 1A, the second fixing glue 2B, third fixing glue 2C and the 4th fixing glue 2D, each model orientation bar corresponding at this timeLength is varied, the model orientation bar four of length between respectively the one the second fixing glues, long between the second third fixing glueThe model orientation bar six of length between the model orientation bar five and the 3rd the 4th fixing glue of degree.Or other sequentially with other lengthModel orientation bar assembled scheme, be not described in detail.
As shown in fig. 7, needing when the present embodiment installs the 4th fixing glue 2D by means of model orientation bar 1.Model is fixedPosition bar 1 is to maintain between the first fixing glue 1A and the 4th fixing glue 2D region fracture site song to consistent curved rod.Such asShown in Fig. 8, model orientation bar 2 32 be to maintain between the first fixing glue 1A and third fixing glue 2C region fracture site song toConsistent curved rod.As shown in figure 9, model orientation bar 3 33 is to maintain the area between the first fixing glue 1A and the second fixing glue 2BDomain fracture site song is to consistent curved rod.
Positioning sleeve 4 as shown in figure 11, including transverse tube 41 and the vertical guide pipe 42 being connect with 41 ending vertical of transverse tube, andAnd the inner wall of the transverse tube 41 of the positioning sleeve 4 be interior rib hole 43, each model orientation bar end be it is prismatic, to just be able to maintain transverse tube41 with each model orientation boom end Matching installation.Model orientation bar 1 is first mounted on to the installation space 24 of the first fixing glue 1AIt is interior and model orientation bar 1 is fixed using locking pin 22.Model orientation bar 1 is preferably provided scale, in order to fastSpeed determines the position for being fixed on the first fixing glue 1A.After model orientation bar 1 is fixed, the positioning sleeve 4 of end installationPosition is also determined, i.e. the drilling position of the 4th fixing glue 2D is also determined.
As shown in figure 8, starting to carry out third fixing glue 2C using same method after the 4th fixing glue 2D is determinedIt determines.As shown in figure 9, starting to carry out the second fixing glue 2B using same method true after third fixing glue 2C is determinedIt is fixed.
As shown in Figure 10, after each fixing glue is all mounted, start that the dissection bar 1 is installed, and pass through each locking pin22 pairs of dissection bars 1 are fixed, and are that dissection bar 1 is connected as one with each fixing glue, and dissection 1 outer surface of bar is provided with anti-skid chequerLayer, can increase integrally-built stability.
The present embodiment structure is simple, to fracture patient wound very little, is not only easy installation, but also remove and be also easy.This realityApply example not can rotate using positioning sleeve 4, so stable positioning relation can be provided for guide pipe 42.
Embodiment 2: on that basis of example 1, using another positioning sleeve 4, as shown in figure 12.The transverse tube of the positioning sleeve 441 inner wall is cylindrical hole 47, and inner sleeve 44 is set in cylindrical hole 47, and lock is connected between transverse tube 41 and inner sleeve 44Tight screw 46.The inner wall of the inner sleeve 44 is provided with along axial parallel anti-rotation block machine 45.This is a kind of composite construction positioning sleeve4, it not can rotate between inner sleeve 44 and model orientation bar wherein, ensure that anti-rotation the constraint relationship.Transverse tube 41 can be along inner sleeve44 rotations, but it can be locked by lock screw 46, guarantee that transverse tube 41 does not rotate with inner sleeve 44.This implementationThe purpose that the achievable transverse tube 41 of example rotates under special circumstances with inner sleeve 44, is that neural position is located exactly in order to avoid fixing glueIt sets, or positioned at when being not easy to screw in position, adjusts the screw-in angle of fixing glue, by rotating horizontal pole to avoid crucial portionPosition.
Embodiment 3: on that basis of example 1, using fixing sleeve as shown in fig. 13 that, the transverse tube 41 of the positioning sleeve 4 it is interiorWall is cylindrical hole 47, transverse tube 41 and each model orientation boom end Matching installation.41 side wall of transverse tube is vertically installed with lock screw 46,Transverse tube 41 and each model orientation boom end are fixed together using lock screw 46.