CN105147375A - Pelvic fracture closed reduction combination tool - Google Patents
Pelvic fracture closed reduction combination tool Download PDFInfo
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- CN105147375A CN105147375A CN201510339962.4A CN201510339962A CN105147375A CN 105147375 A CN105147375 A CN 105147375A CN 201510339962 A CN201510339962 A CN 201510339962A CN 105147375 A CN105147375 A CN 105147375A
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- fracture
- connecting rod
- reduction
- cross bar
- contiguous block
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
Abstract
The invention provides a pelvic fracture closed reduction combination tool, and belongs to the field of pelvic fracture percutaneous reduction tools. The tool is characterized by comprising an indirect reduction mechanism and a direct reduction mechanism. The indirect reduction mechanism comprises a connecting rod (1) and a plurality of groups of chuck assemblies (2) installed on the connecting rod (1). After fracture reduction, the connecting rod (1) is effectively fixed and connected integrally with the direct reduction mechanism through a connecting mechanism. The direct reduction mechanism comprise a cross rod (8) connected with the connecting mechanism, and a vertical tubes (9) installed on the cross rod (8) through a connecting chuck, and the direct reduction mechanism performs distraction reduction and compression fixation on deep fracture. The tool effectively solves problems of reduction maintenance in closed reduction and percutaneous fixation existed in pelvic fracture minimally invasive therapy aspect. The tool can realize accurate reduction state and maintain the reduction, and can carry out percutaneous puncture intramedullary screw fixation, and reduction effect and operation efficiency are improved.
Description
Technical field
Fracture of pelvis closed reduction tool kit, belongs to fracture of pelvis percutaneous reduction field of tool.
Background technology
Open reduction internal fixtion treats the most frequently used method of Unstable pelvic fractures at present, its shortcoming is mainly reflected in that operation wound is large, many, the aspect such as complication is many of losing blood, in many situations, injuredly can not implement open surgery in early days, add the reset effect of patient suffering and post-operative.Pelvis frame extenal fixation is the main fixing means of clinical conventional another kind, what be mainly adapted to that severe pelvic fractures implements before open surgery is temporary fixed, and the maintenance of relatively stable fracture is fixed, it is indirectly fixing away from fracture site, shortcoming is mainly fixed effect difference, and is difficult to maintain to sagittal plane rotation displacement and resets, and is positioned at body surface due to external fixer, affect turn-over bed for patient nursing and play out-of-bed activity early, but also there is the risk of pin track infection.
Closed reduction percutaneous puncture hollow nail internal fixtion interventional therapy fracture of pelvis, compares with open surgery, having lose blood few (blood loss is almost negligible), little effect on the human body, the advantage such as can to treat in early days; And than pelvis external fixed mount Wicresoft more, fracture end can be run through and realize firm fixing, postoperatively can to stand up in early days, out-of-bed activity, nursing is convenient, there is the risk of pin track infection hardly, is the Main way of fracture of pelvis Therapy study both at home and abroad at present.
But, the good para-position of fracture is the prerequisite that percutaneous puts nail internal fixtion, although put nail technical elements at percutaneous, from having an X-rayed underlying nail by C-arm X-ray machine merely, nail is put to by CT airmanship, achieve and put nail safely at pelvis different parts percutaneous, but it is still immature to the research of closed reduction technology, how to realize the good para-position of fracturing in closed state, and for adapting to needs (when different parts percutaneous the puts nail needs proper transformation position putting nail, especially the lower operation of perspective), maintaining in the process of changing position resets does not lose is a difficult problem, there is no effective solution at present, because which limit the application of fracture of pelvis minimally-invasive treatment technology.Abroad someone designs the external fixer be connected with operation table and assists reset fracture of pelvis, obtain certain effect, its shortcoming is: utensil is heavy, sterilization difficulty, impact perspective, patient body position fixes, carry out reset affect reset effect because fracture end can not be directly acted on, its essence is still simple Indirect reduction, is therefore difficult to promote, and limits its application.
Summary of the invention
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, a kind of local direct reduction system that can act near fracture end is provided to carry out the reduction of the fracture, and in conjunction with outside Indirect reduction device integral reset rotation displacement, by the good combination that entire and part resets, realize the exactitude position of fracture, for percutaneous puncture puts the fracture of pelvis closed reduction tool kit that nail internal fixtion provides good anatomic basis.
The technical solution adopted for the present invention to solve the technical problems is: this fracture of pelvis closed reduction tool kit, is characterized in that: comprise Indirect reduction mechanism and direct reduction mechanism;
Indirect reduction mechanism comprises connecting rod and is arranged on the many groups chuck component on connecting rod, and many group pivotable two ends and/or middle parts being connected to connecting rod of chuck component, are effectively connected and fixed connecting rod by bindiny mechanism and direct reduction mechanism after the reduction of the fracture and are integrated;
Direct reduction mechanism comprises the cross bar be connected with bindiny mechanism and the longitudinal poling be arranged on by connecting clip on cross bar, and longitudinal poling can be implanted near fracture end and grappling by percutaneous, and distraction reduction is carried out to deep fracture, pressurization is fixing.
Comparatively extensively, when local fracture dislocation appears in pelvic ring, the direct reduction mechanism that can be used alone carries out percutaneous and struts, resets, pressurizes and fix the scope of application.When pelvic ring multiple fracture is shifted, often with the rotation displacement in overall Different Plane, after now first pelvic ring entirety being resetted, direct reduction mechanism can be shifted through for fracture end remnants and carry out local reset, optimize reset effect, and, direct fixation kit is pivotable to be arranged on connecting rod, form three-dimensional framework fixed structure, carry out percutaneous puncture put nail need adjust position time, effectively can avoid resetting and lose and repeat reset operation.
During clinical practice, drive piles on the ilium of both sides (piling adopts Schanz screw), multifunctional linkage rod is installed, hold screw to rotate Ipsilateral pelvis, to strut or the operation such as pressurization resets, connecting rod side arranges hollow top rod if desired, excellent top, hollow top connects connecting rod by another group chuck component, and chuck component can be arranged on any part of connecting rod, as middle part, two ends etc.Assist by the excellent pushing tow pubis in hollow top, carry out integral-rotation reset to Ipsilateral pelvis, near fracture end, percutaneous implants direct reduction mechanism, effect fracture end direct reduction, to reach accurate reset mode and to maintain reset, in rear enforcement percutaneous puncture marrow, hollow screw is fixed.Improve reset effect and procedure efficiency.
Described connecting rod side arranges hollow top rod, and excellent top, hollow top connects connecting rod by one group of chuck component.
Be equipped with hollow top rod can percutaneous safety effect in deep fracture site, in pelvis, carry out effective pushing tow reset in the face of deep fracture site, and be effectively connected with connecting rod corresponding site by chuck.By longitudinal poling by screw anchored near fracture end, can external fracture end effectively be lifted, pushing tow, strut, reset, the operation such as pressurization.The present invention effectively solves closed reduction that fracture of pelvis minimally-invasive treatment aspect exists and percutaneous maintains the difficult problem resetted when fixing.
The effect of hollow nail rod: before pubis, top targetedly downwards, outer, rear pushing tow pubis, corrected the rotation displacement of Ipsilateral pelvis by pushing tow pubis, be particularly useful for the position that pelvis direct reduction assembly not easily plays a role.Because sclerotin is relatively loose near pubic symphysis, percutaneous is put nail and is easily got loose, and Femur blood vessel position installation out of shape direct reduction component risk increases relatively.Because connecting rod site of action is mainly ilium, site of action limits to, and applies reset response power limited to the fracture of pubis that is positioned at below it, is beneficial to corrects rotation displacement by following closely excellent pushing tow pubis in Different Plane, form three-dimensional framework after resetting to fix, maintain reset effect reliable.During use, first rustless steel guide pin percutaneous is penetrated monolayer sclerotin and is placed near application point, after by hollow nail rod along guide pin Insertion action in bone surface, there is the situation of slippage when preventing pushing tow from resetting.During deep operation, because caput end circle in hollow top is blunt, the risk caused in nervus vasculairs puncture is not possessed when extraperitoneal space moves along pubis inner face, elected when determining application point, first can be inserted to surface of bone with fine needle along top rod is hollow, according to the excellent side opening bleeding in top, rollback guide pin, has judged whether that vascular puncture damages, has improve operation safety.
Described chuck component comprises the controlled chuck of rotation and is rotationally connected block, rotate controlled chuck stiff end and clamp horizontal connecting rod, turning end connection of rotating contiguous block, be rotationally connected and block installs piling screw be fixed on ilium, piling screw freely rotates by being formed between the turning end that is rotationally connected block and rotates controlled chuck.
Described connecting rod can be divided into the multistage of mutual grafting, comprise translation inserting section, rotate inserting section and universal rotational end stopper, translation inserting section is connected two sections of connecting rods of mutual grafting by translation fixation kit, rotate two sections of connecting rods inserting section being connected mutual grafting by turning block assembly, there is axial translation only each other in two sections of connecting rods of translation grafting, there is radial rotating only each other in the two sections of connecting rods rotating grafting, interlinking lever end is provided with and stops chuck component, when carrying out multidimensional rotation displacement and correcting, the universal rotational end stopper causing losing that laterally resets does not occur.
Connecting rod is divided into multistage, and the mutual grafting of multistage, make change from the body of connecting rod, transverse shifting during with regard to solving reset and the problem of radial rotating, increase the adjustment modes of Ipsilateral pelvis-repositioning state, more targeted, selectivity, harmony and sequential during reset.
Two sections of connecting rod homogeneous sections that described translation inserting section rotates inserting section are solid hopkinson bar, and another section is internal diameter hollow stem with matching, and the solid hopkinson bar top in described translation inserting section is provided with the contact plane stoping it to rotate arbitrarily; Described hollow stem is all furnished with the jackscrew of the solid hopkinson bar be fixedly inserted therein.
Described longitudinal poling is the hollow pipe of inner wall smooth, and the inner ring of this hollow pipe percutaneous puncture one end is provided with the back-up ring stopping that screw falls, and the internal diameter of back-up ring is less than the internal diameter at other positions of body.
The inner ring of longitudinal poling percutaneous puncture one end is provided with the back-up ring stopping that screw falls, make it be formed in an end of hollow pipe percutaneous puncture to close up, after percutaneous pedicle screw, screw tail cap is positioned at poling head end, can be unlikely to get loose by multi-angle rotary, postoperatively can get except screw easily again.
Described connecting clip comprises cross bar contiguous block, longitudinal poling contiguous block, adjusting bolt and adjusting nut, and cross bar contiguous block is the T-shaped block with boss, and boss is provided with the hole of serial connection cross bar, and the disk side of boss side is provided with convex stupefied; Longitudinal poling contiguous block is connected by adjusting bolt with between cross bar contiguous block and fastening by adjusting nut, and be provided with same with the side that cross bar contiguous block connects of longitudinal poling contiguous block is with convex stupefied disk.
Cross bar contiguous block can be provided with independent jackscrew to fix, ensure that the position of cross bar contiguous block on cross bar can adjust separately, fix, the impact of not modulated nut.
Described bindiny mechanism comprises connecting rod and active joint, and connecting rod two ends are respectively by a dismountable connection connecting rod of active joint and cross bar.
Prior art is had to compare, the beneficial effect that the present invention has is: the scope of application is wider, when local displacement fracture appears in pelvic ring, if there is the rotary shifted of single plane, the direct reduction mechanism that can be used alone carries out percutaneous and struts, lifts reset, pressurizes and fix.When pelvic ring multiple fracture is shifted, often with the rotation displacement of fracture in Different Plane, after now first Indirect reduction being carried out to pelvic ring entirety, local reset can be carried out for concrete fracture site by direct reduction mechanism again, with correcting residual displacement, optimize reset effect; And the local directly pivotable bridge joint of fixation kit is fixed on connecting rod, carry out percutaneous puncture put nail need adjust position time, effectively can avoid resetting and lose and repetitive operation.
Accompanying drawing explanation
Fig. 1 is fracture of pelvis closed reduction tool kit annexation schematic diagram.
Fig. 2 is Indirect reduction mechanism annexation schematic diagram.
Fig. 3 is direct reduction mechanism annexation schematic diagram.
Fig. 4 is connecting clip side view schematic diagram.
Fig. 5 is the side view schematic diagram of cross bar contiguous block.
Fig. 6 is longitudinal poling sectional view schematic diagram.
Fig. 7 is the excellent sectional view schematic diagram in hollow top.
Fig. 8 is translation inserting section annexation schematic diagram.
Fig. 9 is for rotating inserting section annexation schematic diagram.
Figure 10 is that universal rotational end stopper installs relation schematic diagram.
Wherein: 1, connecting rod 101, grafting body 102, spliced eye 103, detent 2, chuck component 201, rotate controlled chuck 202, be rotationally connected block 203, fastening bolt 3, jackscrew 4 is fixed in translation, rotate jackscrew 5, connecting rod 6, piling screw 7, active joint 8, cross bar 9, longitudinal poling 10, connecting clip 1001, cross bar contiguous block 1002, longitudinal poling contiguous block 1003, adjusting bolt 1004, adjusting nut 1005, convex stupefied 1006, spacing jackscrew 11, universal rotational end stopper 1101, stop jackscrew 12, back-up ring 13, hollow top rod 1301, side opening 14, guide pin.
Detailed description of the invention
Fig. 1 ~ 10 are most preferred embodiments of the present invention, and below in conjunction with accompanying drawing 1 ~ 10, the present invention will be further described.
With reference to accompanying drawing 1 ~ 10: this fracture of pelvis closed reduction tool kit, comprise Indirect reduction mechanism and direct reduction mechanism, many groups chuck component 2 that Indirect reduction mechanism comprises connecting rod 1 and is arranged on connecting rod 1, many group pivotable two ends and middle parts being connected to connecting rod 1 of chuck component 2; Connecting rod 1 side of Indirect reduction mechanism is by rotating connection direct reduction mechanism of bindiny mechanism; Direct reduction mechanism comprises the cross bar 8 be connected with bindiny mechanism and the longitudinal poling 9 be arranged on by connecting clip on cross bar 8, and longitudinal poling 9 can put axial rotation centered by connecting clip.Bindiny mechanism comprises connecting rod 5 and active joint 7, and connecting rod 5 two ends are respectively by a dismountable connection connecting rod 1 of active joint 7 and cross bar 8.
Hollow top rod 13 also can be set in connecting rod side, hollow top rod 13 is provided with the endoporus of allowing that guide pin 14 passes, middle part sidewall is provided with the side opening 1301 of multiple axial arranging, bottom is the round blunt end head with radian, guide pin 14 selects stainless steel, bottom is that tip is arranged, and as shown in Figure 7, excellent 13 tops, hollow top connect connecting rod 1 by another group chuck component 2.Chuck component 2 can be arranged on any part of connecting rod 1, as middle part, two ends etc.Be equipped with hollow top rod 13 can percutaneous safety effect in deep fracture site, in pelvis, carry out effective pushing tow reset in the face of deep fracture site, and be effectively connected with connecting rod 1 by chuck component 2.By longitudinal poling 9 by screw anchored near fracture end, also external fracture end effectively can be strutted, reset, the operation such as pressurization, effectively solve when closed reduction that fracture of pelvis minimally-invasive treatment aspect exists and percutaneous are fixed and maintain the difficult problem resetted.
The effect of hollow top rod 13: before pubis, top targetedly downwards, outer, rear pushing tow pubis, corrected the rotation displacement of Ipsilateral pelvis by pushing tow pubis, be particularly useful for the position that pelvis direct reduction assembly not easily plays a role.Because sclerotin is relatively loose near pubic symphysis, percutaneous is put nail and is easily got loose, and Femur blood vessel position installation out of shape direct reduction component risk increases relatively.Because connecting rod 1 site of action is mainly ilium, site of action limits to, and applies reset response power limited, be beneficial to correct rotation displacement by the excellent 13 pushing tow pubis in hollow top in Different Plane the fracture of pubis be positioned at below it, form three-dimensional framework after resetting to fix, maintain reset effect reliable.During use, first rustless steel guide pin 14 percutaneous is penetrated monolayer sclerotin and is placed near application point, after by hollow top rod 13 along guide pin 14 Insertion action in bone surface, there is the situation of slippage when preventing pushing tow from resetting.During deep operation, because the excellent 13 termination circles in hollow top are blunt, the risk caused in nervus vasculairs puncture is not possessed when extraperitoneal space moves along pubis inner face, elected when determining application point, first can be inserted to surface of bone with guide pin 14 along hollow top rod 13, rollback guide pin 14, side opening 1301 bleeding according to hollow top rod 13 has judged whether that vascular puncture damages, and improves operation safety.
As shown in Figure 1, chuck component 2 is provided with three groups, be arranged on two ends and the center of connecting rod 1 respectively, chuck component 2 comprises the controlled chuck 201 of rotation, be rotationally connected block 202 and piling screw 6, rotate controlled chuck 201 stiff end and clamp connecting rod 1, rotate in the middle part of controlled chuck 201 and be provided with fastening bolt 203, the tightness of itself and connecting rod 1 is adjusted by fastening bolt, turning end connection of rotating contiguous block 202, the turning end being rotationally connected block 202 is a spherical swivel, swivel be embedded in rotate controlled chuck 201 turning end in, be rotationally connected block 202 and be provided with through hole, piling screw 6 is installed in this through hole, piling screw 6 is Schanz screw, Schanz screw freely rotates to reset to fracture by being formed between the turning end that is rotationally connected block 202 and rotates controlled chuck 201.
Connecting rod 1 can be divided into the multistage of mutual grafting, comprise translation inserting section and rotate inserting section and universal rotational end stopper 11, translation inserting section is connected two sections of connecting rods 1 of mutual grafting by translation fixation kit, rotate the two sections of connecting rods 1 inserting section being connected mutual grafting by turning block assembly, there is axial translation only each other in two sections of connecting rods 1 of translation grafting, there is radial rotating only each other in the two sections of connecting rods 1 rotating grafting, connecting rod 1 end is provided with and stops chuck component 2, when carrying out multidimensional rotation displacement and correcting, the universal rotational end stopper 11 causing losing that laterally resets does not occur, universal rotational end stopper 11 is an annulus not exclusively closed, be sleeved on connecting rod 1 end, and annulus is provided with screw hole, screw hole is built with stop jackscrew 1101, for stationary links and universal rotational end stopper 11.
Longitudinal poling 9 is the hollow pipe of interior smooth, and the inner ring of this hollow pipe percutaneous puncture one end is provided with the back-up ring 12 stopping that screw falls, and the internal diameter of back-up ring 12 is less than the internal diameter at other positions of longitudinal poling 9 body.
Two sections of connecting rod 1 homogeneous sections of translation inserting section and rotation inserting section are solid hopkinson bar, and another section is internal diameter hollow stem with matching, and the one section of top of the solid hopkinson bar in translation inserting section is provided with the contact plane stoping it to rotate arbitrarily; Hollow stem is all furnished with the jackscrew of the solid hopkinson bar be fixedly inserted therein.
As shown in Figure 8 and Figure 9, concrete, two sections of connecting rods 1 of translation inserting section comprise the grafting body 101 and the spliced eye 102 that coordinate plane with grafting, grafting body 101 is provided with the solid hopkinson bar of contact plane for top, the one section of connecting rod 1 be set with it is the hollow pipe with same shape endoporus, this endoporus is spliced eye 102, and two connecting rods 1 are docked by grafting body 101 and spliced eye 102, and is provided with the translation fixation kit of the grafting body 101 being fixedly inserted therein portion on hollow one section of connecting rod 1.
Rotation inserting section is the connecting rod 1 of side is hollow pipe, and the connecting rod 1 of opposite side is grafting body 101, and grafting body 101 is solid hopkinson bar, and the external diameter of this solid hopkinson bar is less than or equal to the internal diameter of hollow pipe, and solid hopkinson bar can be inserted in hollow pipe, and can realize rotating in hollow pipe.Hollow pipe is provided with the turning block assembly of the solid hopkinson bar being fixedly inserted therein portion, the grafting end of solid hopkinson bar grafting body 101 is provided with and inserts fixing detent 103 for turning block assembly.
Translation fixation kit comprises the translation be arranged on hollow connecting rod 1 and fixes jackscrew 3, and the movement of jackscrew 3 for control link 1 translation inserting section is fixed in translation; Turning block assembly comprises one and rotates jackscrew 4, rotate jackscrew 4 with control to rotate the rotation of inserting section connecting rod 1, rotating jackscrew 4 bottom is fixedly mounted in detent 103, the grafting body 101 rotating inserting section is stoped to rotate, remove after rotating jackscrew 4, the grafting body 101 rotating inserting section can realize free rotation.
With reference to accompanying drawing 3 ~ 5, connecting clip 10 comprises cross bar contiguous block 1001, longitudinal poling contiguous block 1002, adjusting bolt 1003 and adjusting nut 1004, cross bar contiguous block 1001 is the T-shaped block with boss, and boss is provided with the hole of serial connection cross bar 8, and the disk side of boss side is provided with convex stupefied 1005; Longitudinal poling contiguous block 1002 is connected by adjusting bolt 1003 with between cross bar contiguous block 1001 and fastening by adjusting nut 1004, and be provided with same with the side that cross bar contiguous block 1001 connects of longitudinal poling contiguous block 1002 is with the convex disk of stupefied 1005.Longitudinal poling contiguous block 1002 is same with convex stupefied disk with the junction of cross bar contiguous block 1001, can avoiding the occurred level displacement when there is axial rotation of two longitudinal polings 9, limiting the rectilinear movement in the horizontal direction of longitudinal poling 9 thus.Cross bar contiguous block 1001 can be provided with independent spacing jackscrew 1006 to fix, ensure that the position of cross bar contiguous block 1001 on cross bar 8 can adjust separately, fix, the impact of not modulated nut 1004.
Operation principle and work process: this fracture of pelvis closed reduction tool kit operationally, follow the overall large rotation displacement that first resets, then direct para-position locally of fracturing is carried out, again Indirect reduction mechanism and direct reduction mechanism are effectively connected and fixed, thus complete comprehensive reset of pelvic ring, three-dimensional frame structure remains fixing.
When there is multiple location Different Plane rotation displacement in pelvic ring, first carry out the correction of integral-rotation displacement, indirect resetting-mechanism is installed, during concrete operations, insert screw prior to both sides ilium, installing connecting rods 1, carry out strutting or drawing according to the direction of ilium rotation displacement, after on pubis percutaneous insert longitudinal poling 9 and to lift or hollow nail rod carries out pushing and withstanding (according to fracture of pubis position direction of displacement), after reset, longitudinal poling 9 or hollow top rod 13 and connecting rod 1 are connected and fixed formation three-dimensional frame structure.Well can implement percutaneous puncture hollow screw if reset to fix, complete Post operation and remove external resetting means.If after above-mentioned steps carries out overall Indirect reduction to fracture, fracture end still can not realize good para-position (dislocation is greater than 1cm), longitudinal poling 9 can be implanted in fracture end both sides percutaneous, direct reduction mechanism is installed, lifted by longitudinal poling 9, strut, pressurization etc. has operated reset, and is connected and fixed by bindiny mechanism and connecting rod 1 and is integrated, and remains fixing, after this carry out percutaneous puncture implant hollow screw fix fracture end, complete operation.
When fracture of pelvis is the rotation displacement of single plane, longitudinal poling 9 can be implanted in fracture end both sides merely, by direct reduction mechanism reseting fracture end, correct rotation displacement para-position fracture end completes reset.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (8)
1. fracture of pelvis closed reduction tool kit, is characterized in that: comprise Indirect reduction mechanism and direct reduction mechanism;
Indirect reduction mechanism comprises connecting rod (1) and is arranged on the many groups chuck component (2) on connecting rod (1), organize pivotable two ends and/or the middle part being connected to connecting rod (1) of chuck component (2) more, after the reduction of the fracture, connecting rod (1) is effectively connected and fixed by bindiny mechanism and direct reduction mechanism and is integrated;
Direct reduction mechanism comprises the cross bar (8) be connected with bindiny mechanism and the longitudinal poling (9) be arranged on by connecting clip on cross bar (8), longitudinal poling (9) can be implanted near fracture end and grappling by percutaneous, and distraction reduction is carried out to deep fracture, pressurization is fixing.
2. fracture of pelvis closed reduction tool kit according to claim 1, is characterized in that: described connecting rod (1) side arranges hollow top rod (13), and rod (13) top, hollow top connects connecting rod (1) by one group of chuck component (2).
3. fracture of pelvis closed reduction tool kit according to claim 1, it is characterized in that: described chuck component (2) comprises the controlled chuck of rotation (201) and is rotationally connected block (202), rotate controlled chuck (201) stiff end and clamp horizontal connecting rod (1), turning end connection of rotating contiguous block (202), be rotationally connected that block (202) is upper to be installed piling screw (6) and be fixed on ilium, piling screw (6) is freely rotated by being rotationally connected to be formed between block (202) and the turning end of the controlled chuck of rotation (201).
4. fracture of pelvis closed reduction tool kit according to claim 1, it is characterized in that: described connecting rod (1) can be divided into the multistage of mutual grafting, comprise translation inserting section, rotate inserting section and universal rotational end stopper, translation inserting section is connected two sections of connecting rods of mutual grafting by translation fixation kit, rotate two sections of connecting rods inserting section being connected mutual grafting by turning block assembly, there is axial translation only each other in two sections of connecting rods of translation grafting, there is radial rotating only each other in the two sections of connecting rods rotating grafting, connecting rod (1) end is provided with and stops chuck component (2), when carrying out multidimensional rotation displacement and correcting, the universal rotational end stopper (11) causing losing that laterally resets does not occur.
5. fracture of pelvis closed reduction tool kit according to claim 4, it is characterized in that: two sections of connecting rod (1) homogeneous sections that described translation inserting section rotates inserting section are solid hopkinson bar, another section is internal diameter hollow stem with matching, and the solid hopkinson bar top in described translation inserting section is provided with the contact plane stoping it to rotate arbitrarily; Described hollow stem is all furnished with the jackscrew of the solid hopkinson bar be fixedly inserted therein.
6. fracture of pelvis closed reduction tool kit according to claim 1, it is characterized in that: the hollow pipe that described longitudinal poling (9) is inner wall smooth, the inner ring of this hollow pipe percutaneous puncture one end is provided with the back-up ring (12) stopping that screw falls, and the internal diameter of back-up ring (12) is less than the internal diameter at other positions of body.
7. fracture of pelvis closed reduction tool kit according to claim 1, it is characterized in that: described connecting clip comprises cross bar contiguous block (1001), longitudinal poling contiguous block (1002), adjusting bolt (1003) and adjusting nut (1004), cross bar contiguous block (1001) is the T-shaped block with boss, boss is provided with the hole of serial connection cross bar (8), and the disk side of boss side is provided with convex stupefied (1005); Longitudinal poling contiguous block (1002) with pass through adjusting bolt (1003) between cross bar contiguous block (1001) and to be connected and fastening by adjusting nut (1004), and longitudinal poling contiguous block (1002) is same with the side that cross bar contiguous block (1001) connects is provided with the disk being with convex stupefied (1005).
8. fracture of pelvis closed reduction tool kit according to claim 1, it is characterized in that: described bindiny mechanism comprises connecting rod (5) and active joint (7), connecting rod (5) two ends are respectively by a dismountable connection connecting rod (1) of active joint (7) and cross bar (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339962.4A CN105147375B (en) | 2015-06-18 | 2015-06-18 | Pelvic fracture closed reduction combination tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339962.4A CN105147375B (en) | 2015-06-18 | 2015-06-18 | Pelvic fracture closed reduction combination tool |
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| CN105147375A true CN105147375A (en) | 2015-12-16 |
| CN105147375B CN105147375B (en) | 2017-10-24 |
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| CN201510339962.4A Expired - Fee Related CN105147375B (en) | 2015-06-18 | 2015-06-18 | Pelvic fracture closed reduction combination tool |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529029A (en) * | 2020-05-21 | 2020-08-14 | 上海长海医院 | Integrative external fixation support of pelvis front and back ring |
| CN111658171A (en) * | 2020-06-03 | 2020-09-15 | 山东威高骨科材料股份有限公司 | Traction frame for spinal column orthopedic operation |
| CN113813054A (en) * | 2021-08-13 | 2021-12-21 | 上海大学 | Universal adjusting type pelvis clamping instrument of pelvis fracture reduction robot |
| CN113974815A (en) * | 2021-10-22 | 2022-01-28 | 上海大学 | Universal and hydraulic expansion type clamping instrument of pelvic fracture reduction robot |
| WO2022121556A1 (en) * | 2020-12-11 | 2022-06-16 | 陈聚伍 | Single-rod four-nail external fixator for fracture |
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| CN104127231A (en) * | 2014-07-16 | 2014-11-05 | 王钢 | Minimally-invasive S1 sacroiliac joint screw positioning guider |
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