CN205586057U - Elbow joint bends and stretches movable axle center locator - Google Patents
Elbow joint bends and stretches movable axle center locator Download PDFInfo
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- CN205586057U CN205586057U CN201620142372.2U CN201620142372U CN205586057U CN 205586057 U CN205586057 U CN 205586057U CN 201620142372 U CN201620142372 U CN 201620142372U CN 205586057 U CN205586057 U CN 205586057U
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Abstract
The utility model provides an elbow joint bends and stretches movable axle center locator, by set pipe holder, the ke shi needle, the lift stand, the opening retainer ring, measure the locating piece, the spliced pole, on, under fix a position the projection nucleus, a guiding sleeve, and the bolt is constituteed, the lift stand is connected perpendicularly to horizontal cavity cover pipe holder one end, and it is fixed by bolt adjustment, horizontal opening retainer ring is connected on lift stand top, insert the spliced pole in the opening retainer ring, by the vertically bolt fastening, the measurement locating piece of the oblate cylinder of aluminium system is connected to the spliced pole other end, the uide bushing is inserted in the downthehole cooperation of vertical centring of oblate cylinder, nonrust firm upper and lower location projection nucleus is installed respectively on the plane from top to bottom, cavity cover pipe holder is gone into and worn out with ke shi cushion, it is fixed through bolt adjustment, the ke shi needle is worn the output and is measured central correspondence of vertical guide cover on the locating piece. The utility model discloses simple structure fixes a position the accuracy, can bend and stretch the location realization normalizing operation in movable axle center to the elbow joint, is suitable for popularization and application.
Description
Technical field
This utility model relates to technical field of medical instruments, especially relates to a kind of elbow joint and bends and stretches movable axis heart localizer.
Background technology
In Orthopedic Clinical is treated, complicated elbow fracture or elbow joint stiffness Post operation of loosening there will be the instability of elbow joint, currently mainly apply mobilizable hinge type elbow joint external fixing support, the principle of its application is the change of only 2mm during bending and stretching of the kinematic axis of humeroulnar joint, it is similar to a real Hinge joint, this provides the foundation for using movable hinged external fixator treatment ancon illness, contribute to remaining stable and retracting articular surface, avoid articular surface, fracture end and ligament etc. are stressed, both the stable of elbow joint and the reparation of ligament had been ensured, it is beneficial to again the early functional exercise of postoperative elbow joint, thus reach good clinical efficacy.But the core of this stent applications and difficult point are to position elbow joint the most accurately to bend and stretch the movable axis heart and direction, studies have found that and bend and stretch axle deviations 5mm or angulation more than 5 degree, acting will increase by 4 times.Thus, exterior fixation bracket operation is lack of standardization, not only can not play the effect of special operations, can limit the activity of patient on the contrary, increases the stress that patient is suffered when flexion-extension motion, thus causes the generation of the complication such as ulnar fracture, exterior fixation bracket or fixing pin fracture.Free-hand positioning mode under the most general often use perspective, if finding elbow instability timing after the reduction of the fracture is fixed and ligament is repaired, typically first bend 90 degree of position Kirschner wire fixation humeroulnar joints of elbow, first have to set position or adjust the throwing of fluoroscopic machine ray according to direction, making to bend makes capitulum of humerus and coaster keep concentric circular under the perspective of elbow inward turning position, the most again by positioning needle at ectocondyle positioning centre, the lower adjustment direction of perspective, until positioning needle distance end overlaps as a bit, the most gradually squeeze into positioning needle, and want to beat while have an X-rayed, constantly adjust the direction of positioning needle.This traditional operational approach all judges with the clinical experience of doctor, hand operation is unstable, cause fluoroscopy during operation often, it is difficult to standardization, if slightlyying offset, all may result in flexion-extension motion after postoperative outrigger is installed dumb, after causing operation in patients, during functional exercise, acting increases and the generation of multiple complications.Therefore, a kind of simple in construction of research and development, accurate positioning, the elbow joint that can realize normalizing operation bend and stretch movable axis heart localizer, is the current the art task of being badly in need of.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in construction, and accurate positioning, the elbow joint that can realize normalizing operation bend and stretch movable axis heart localizer.
nullIn order to achieve the above object，This utility model uses following structure: a kind of elbow joint bends and stretches movable axis heart localizer，By casing support、Kirschner wire、Lifting column、Opening holding ring、Measurement and positioning block、Connect post、On、Lower positioning projection ring、Fairlead、And bolt composition，It is characterized in: horizontal hollow casing support one end vertically connects lifting column，And adjusted fixing by bolt，Lifting column top connects transverse opening holding ring，Opening holding ring is inserted into connecting post，Fixed by vertical bolt，Connect the post other end and connect measurement and positioning block，Measurement and positioning block is the oblate cylinder of aluminum，Coordinate in vertical centre hole and insert fairlead，It is respectively mounted the upper of stainless steel at flat cylindrical lower planes、Lower positioning projection ring，Projection nucleus centre bore is concentric with fairlead，Kirschner wire is inserted and passes hollow sleeve support，Adjusted fixing by bolt，It is corresponding that Kirschner wire traversing through end overlaps center with the vertically-guided on measurement and positioning block，Constitute elbow joint and bend and stretch movable axis heart localizer.
This utility model is according to many circle concentric co-axial structural principles in line, positioning needle is inserted in the fairlead on measurement and positioning block, positioning needle is projected in many circle donuts under fluoroscopy, the external diameter of measurement and positioning block is identical with ectocondyle shape in elbow joint, adjust the bolt on opening holding ring, make the many circles on measurement and positioning block overlap with one heart and just reach precise positioning, determine the vertical dimension of positioning needle by adjusting the height of lifting column, it is simple to squeeze into the degree of depth of positioning needle.Kirschner wire in horizontal hollow casing support is for interim fixing humeroulnar joint, it is ensured that does not produce during positioning and squeezing into positioning needle and rocks, it is ensured that stable operation.
Owing to using said structure, this utility model simple in construction, accurate positioning, the location that elbow joint can bend and stretch the movable axis heart realize normalizing operation, have reached goal of the invention.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model structure
Fig. 2 is the top view of Fig. 1
Fig. 3 is the left view of Fig. 1
Detailed description of the invention
nullBelow in conjunction with the accompanying drawings this utility model is further illustrated，Fig. 1 demonstrates structure of the present utility model to figure，A kind of elbow joint bends and stretches movable axis heart localizer，By casing support 2、Kirschner wire 1、Lifting column 4、Opening holding ring 5、Measurement and positioning block 6、Connect post 7、On、Lower positioning projection ring 10、9 fairleads 8、And bolt 3 forms，It is characterized in: horizontal hollow casing support 2 one end vertically connects lifting column 4，And adjusted fixing by bolt 3，Lifting column 4 top connects transverse opening holding ring 5，Opening holding ring 5 is inserted into connecting post 7，Fixed by vertical bolt 3，Connect post 7 other end and connect measurement and positioning block 6，Measurement and positioning block 6 is the oblate cylinder of aluminum，Coordinate in vertical centre hole and insert fairlead 8，It is respectively mounted the upper of stainless steel at flat cylindrical lower planes、Lower positioning projection ring 10 and 9，The centre bore of projection nucleus 10 and 9 is concentric with fairlead 8，Kirschner wire 1 is inserted and passes hollow sleeve support 2，Adjusted fixing by bolt 3，It is corresponding that Kirschner wire 1 traversing through end overlaps 8 centers with the vertically-guided on measurement and positioning block 6，Constitute elbow joint and bend and stretch movable axis heart localizer.
Claims (1)
- null1. an elbow joint bends and stretches movable axis heart localizer，By casing support (2)、Kirschner wire (1)、Lifting column (4)、Opening holding ring (5)、Measurement and positioning block (6)、Connect post (7)、On、Lower positioning projection ring (10、9)、Fairlead (8)、And bolt (3) composition，It is characterized in that: horizontal hollow casing support (2) one end vertically connects lifting column (4)，And adjusted fixing by bolt (3)，Lifting column (4) top connects transverse opening holding ring (5)，Opening holding ring (5) is inserted into connecting post (7)，Fixed by vertical bolt (3)，Connect post (7) other end and connect measurement and positioning block (6)，Measurement and positioning block (6) is the oblate cylinder of aluminum，Coordinate in vertical centre hole and insert fairlead (8)，It is respectively mounted the upper of stainless steel at flat cylindrical lower planes、Lower positioning projection ring (10、9)，Projection nucleus (10、9) centre bore is concentric with fairlead (8)，Kirschner wire (1) is inserted and passes hollow sleeve support (2)，Adjusted fixing by bolt (3)，Kirschner wire (1) traversing through end is corresponding with vertically-guided set (8) center on measurement and positioning block (6)，Constitute elbow joint and bend and stretch movable axis heart localizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142372.2U CN205586057U (en) | 2016-02-25 | 2016-02-25 | Elbow joint bends and stretches movable axle center locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142372.2U CN205586057U (en) | 2016-02-25 | 2016-02-25 | Elbow joint bends and stretches movable axle center locator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205586057U true CN205586057U (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620142372.2U Active CN205586057U (en) | 2016-02-25 | 2016-02-25 | Elbow joint bends and stretches movable axle center locator |
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| Country | Link |
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| CN (1) | CN205586057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112168197A (en) * | 2020-07-20 | 2021-01-05 | 北京积水潭医院 | Positioning method and navigation system for elbow joint external fixation rotating shaft |
-
2016
- 2016-02-25 CN CN201620142372.2U patent/CN205586057U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112168197A (en) * | 2020-07-20 | 2021-01-05 | 北京积水潭医院 | Positioning method and navigation system for elbow joint external fixation rotating shaft |
| CN112168197B (en) * | 2020-07-20 | 2023-07-21 | 北京积水潭医院 | Positioning method and navigation system for elbow joint external fixation rotating shaft |
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