CN104490465A - Femoral neck guider - Google Patents
Femoral neck guider Download PDFInfo
- Publication number
- CN104490465A CN104490465A CN201410773085.7A CN201410773085A CN104490465A CN 104490465 A CN104490465 A CN 104490465A CN 201410773085 A CN201410773085 A CN 201410773085A CN 104490465 A CN104490465 A CN 104490465A
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- plate
- fixing
- joint
- gross bearings
- bearings plate
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
Abstract
The invention relates to a locating device for an orthopedic department, in particular to a femoral neck guider which belongs to the technical field of medical instruments. According to the technical scheme provided by the invention, the femoral neck guider comprises an orientation locating plate and an angle locating bar, wherein the angle locating bar is connected with the orientation locating plate through a movable joint, and an angle measuring plate and a temporary fixing mechanism are arranged on the movable joint which is used for connecting the angle locating bar and the orientation locating plate. The femoral neck guider disclosed by the invention is applied to femoral neck fracture minimally invasive surgery of the orthopedic department, the orientation locating plate and the angle locating plate are connected through the movable joint, the angle can be optionally regulated, a surgery doctor can be helped to quickly locate the femoral neck, the use is convenient, the locating accuracy rate is increased, and safety and reliability are realized.
Description
Technical field
The present invention relates to a kind of neck of femur guider, belong to the technical field of medical apparatus and instruments.
Background technology
Three pieces of nail treatment bone bone fracture of cervical vertebras refer to that percutaneous is by screwing in three pieces of external diameter 4mm hollow thread steel nails in fracture of femoral neck alignment neck of femur, bears different stress respectively by rational deployment, a kind of method for the treatment of fracture of femoral neck.Three pieces of nail treatment bone bone fracture of cervical vertebra advantages are: wound is little, and three pieces of thread steel nails are squeezed into neck of femur correct position; Go out insufficiency of blood, otch is little, and healing is fast, and safety is high, seldom occurs severe complication; Curative effect certainly, can leave hospital by postoperative a couple of days.This art formula is widely adopted, especially in gerontal patient.
The operation of three pieces of nail treatment bone bone fracture of cervical vertebras is carried out under x-ray monitors: the entry point generally 10cm under greater trochanter summit of the 1st piece of drive screw (distally nail), nail and the femoral shaft longitudinal axis are 145 ° ~ 160 ° angles, are close to cortex inside fractures and reach femoral head apart from joint margins 0.5cm place.In succession pierce the 2nd, 3 piece of drive screw at the nearside of this nail every 1 ~ 1.5cm, wherein the outer upside of one piece of deflection neck of femur is with to tensile stress, and another piece of intersection is laid with better anti-rotation.
Three pieces of nail treatments bone bone fracture of cervical vertebra surgical effect and three Mei Ding location layouts are closely related, are not straightforward manipulation, for operating under X radiography.Need Reusability C arm machine to locate in the preoperative art of surgical doctor, and rely on the surgical experience of clinicist repeatedly to adjust puncture needle to try location on.When the doctor that young or clinical experience enrich not operates, unavoidable increase film making number of times, amount of radiation suffered by doctors and patients increases, and increases puncture time, increases patient suffering.Even if the doctor that clinical experience is abundant, also unavoidable C arm machine film making location and the use Kirschner wire of repeatedly using when locating repeatedly is tried on.A kind of simple and practical neck of femur guider of clinical needs, reduces operating difficulty, improves procedure efficiency, increases operation safety.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of neck of femur guider, it is simple and compact for structure, easy to use, clinicist can be helped to improve location efficiency and accuracy when three pieces of nail treatment bone bone fracture of cervical vertebra operations, increase operation safety.
According to technical scheme provided by the invention, described neck of femur guider, comprise for the fixing by gross bearings plate of neck of femur plane and angle orientation and angle orientation rod, the end of described fixing by gross bearings plate and angle orientation rod one end is connected by movable joint.The angle that can adjust arbitrarily fixing by gross bearings plate major axis and angle orientation rod major axis is rotated by movable joint.
Described fixing by gross bearings plate arranges angular measurement plate centered by movable joint.The angle of location-plate and the angle orientation rod angulation on angular surveying board plane of can being fixed the position by angular measurement plate.
The contiguous movable joint one end of described fixing by gross bearings plate arranges and is used for the joint temporary securing mechanism temporary fixed to position between orientation location-plate and angle orientation rod.
Described joint temporary securing mechanism comprises the joint positioning screw hole being arranged on the contiguous movable joint one end of measurement and positioning plate and the joint bolt be embedded in the positioning screw hole of joint.Described joint positioning screw hole runs through connection movable joint by measurement and positioning plate surface, described joint bolt mates with joint positioning screw hole and can advance by rotating or retreat in the positioning screw hole of joint, and the length of described joint bolt is greater than joint positioning screw hole.
What on described neck of femur guider, corresponding orientation location-plate 1 arranged angle orientation rod 2 arranges positioning baseplate to side, and described positioning baseplate 6 arc shaped inside face arranges viscose glue positioning baseplate and pastes face; Described positioning baseplate arc external side arranges the positioning baseplate scale face 62 of the vertical length graduation mark in length and breadth of distributing; Arranging between described positioning baseplate and fixing by gross bearings plate can by positioning baseplate and the temporary fixed orientation plate temporary securing mechanism of fixing by gross bearings Board position.
Described orientation plate temporary securing mechanism, comprising: positioning baseplate and fixing by gross bearings plate are the magnetic material that can attract each other; Or positioning baseplate and fixing by gross bearings plate one are magnetic material, one is the metal material that can be attracted by magnetic material.
Described movable joint comprises the joint link slot that is arranged on fixing by gross bearings plate one end and expands the joint that projection formed in angle orientation rod end, one end and be connected projection; Described joint connects projection and joint link slot form fit, and joint connects projection and can set and spacingly also to rotate in the link slot of joint in the link slot of joint.
The described joint being arranged on angle orientation rod one end connects projection and is preferably convex spherical structure.Be arranged on joint, fixing by gross bearings plate one end link slot now and be preferably more than half ball recess.The convex spherical inner diameter that joint link slot spherical inner diameter connects projection compared with joint is slightly large, and described joint connects projection can be embedded in rotation in the link slot of joint.
Described angle orientation rod runs through major axis and arranges hollow duct.Described angle orientation rod connects the other end of projection hollow cell ends at opposed articulation arranges horn mouth.
Described angle orientation rod is detachable structure, separates the two or more angle orientation rod running through hollow duct of rear formation and separates chunk, forms complete angle orientation bar structure after chunk split separated by two or more angle orientation rod.
The joint connection groove section of described fixing by gross bearings plate one end is divided into detachable structure, separate rear formation arthrodesis portion fixing by gross bearings plate and half groove fixing by gross bearings plate, after described arthrodesis portion fixing by gross bearings plate is separated, being embedded in joint link slot intrinsic articulation connection projection can deviate from from the groove of half groove fixing by gross bearings plate end.The described orientation detachable structure of plate comprises the point-like being arranged on joint link slot weak part and cuts off off-line.
Described arthrodesis portion fixing by gross bearings plate and half groove fixing by gross bearings plate split connecting portion arrange orientation plate temporary locking mechanism, and arthrodesis portion fixing by gross bearings plate and half groove fixing by gross bearings plate split can be formed the structure of a complete fixing by gross bearings plate and temporary locking by described orientation plate temporary locking mechanism.
Described orientation plate temporary locking mechanism also comprises buckle structure, according to this structure: be set to from disconnected structure at the link slot position, joint of fixing by gross bearings plate one end, and the fixing by gross bearings plate sidewall from broken string side arranges buckle, and corresponding opposite side sidewall arranges fixture block.After buckle buckles into fixture block, described arthrodesis portion fixing by gross bearings plate and half groove fixing by gross bearings plate split are locked as a complete fixing by gross bearings plate structure.Joint link slot centrosymmetry line position is preferably arranged on from broken string.
Described angular measurement plate is semi-circle shape, and edge, semi-circular arc face arranges angular measurement plate graduation mark, and semi-circle shape both ends are arranged can fix projection by the angular measurement plate be movably connected on fixing by gross bearings plate by angular measurement plate.Described fixing by gross bearings plate is fixed projection correspondence position to arrange and can fix projection to angular measurement plate with angular measurement plate and set the spacing and angular measurement plate fixed groove rotated.
The angular measurement plate that described angular measurement plate is arranged is fixed projection and is set to convex spherical structure.The angular measurement plate fixed groove now described fixing by gross bearings plate arranged is preferably more than half spherical structure groove, and it is similar that its profile and angular measurement plate fix projection, and size is slightly large.Described angular measurement plate is fixed projection and can be set and spacingly to rotate in angular measurement plate fixed groove.
The angular measurement plate that described angular measurement plate is arranged fixes projection also can be set to cylindrical structure, the angular measurement plate fixed groove now described fixing by gross bearings plate arranged is more than half cylinder groove, it is similar that its profile and angular measurement plate fix projection, and size is slightly large.Described angular measurement plate is fixed projection and can be set and spacingly to rotate in angular measurement plate fixed groove.
Advantage of the present invention: can assisting operation doctor accurately locate site of puncture, direction and angle, lowers operating difficulty, and its structure is simple, easy to use, improves procedure efficiency, increases operation safety.
Accompanying drawing explanation
Fig. 1 is whole implementation shape and structure figure of the present invention.
Fig. 2 is the front view of angular measurement plate of the present invention.
Fig. 3 is fixing by gross bearings plate top view of the present invention and implements shape and structure figure with joint bolt assembly relation.
Fig. 4 is fixing by gross bearings plate side view of the present invention and implements shape and structure figure with joint bolt assembly relation.
Fig. 5 is the enforcement shape and structure figure of positioning baseplate of the present invention.
Fig. 6 is positioning baseplate length scale face of the present invention expanded view.
Fig. 7 is that shape and structure figure implemented by angle orientation of the present invention rod.
Fig. 8 is angle orientation rod of the present invention is that shape and structure figure is implemented in two chunk splits.
Fig. 9 is that fixing by gross bearings plate of the present invention arranges point-like at joint link slot weak part and cuts off off-line, and cuts off off-line from the top view of having no progeny through point-like.
Figure 10 is the side view of fixing by gross bearings plate of the present invention after joint link slot weak part arranges buckle structure and is separated.
Figure 11 is the top view of fixing by gross bearings plate of the present invention after joint link slot weak part arranges buckle structure and is separated.
Figure 12 is the profile that the present invention completes at hands Intraoperative position.
Description of reference numerals: 1-fixing by gross bearings plate, 11-arthrodesis portion fixing by gross bearings plate, 12-half groove fixing by gross bearings plate, 13-point-like cuts off off-line, 14-angular measurement plate fixed groove, 2-angle orientation rod, 21-hollow duct, 22-horn mouth, 3-movable joint, 31-joint link slot, 32-joint connects projection, 4-angular measurement plate, 41-angular measurement plate fixes projection, 42-angular measurement plate graduation mark, 43-angular measurement plate hollow bulb, 5-joint temporary securing mechanism, 51-joint positioning screw hole, 52-joint bolt, 6-positioning baseplate, 61-positioning baseplate pastes face, 62-positioning baseplate scale face, 71-buckle axle block, 72-buckle clasp, 73-buckle button block, 81-femoral head, 82-femoral neck bone broken line, 83-neck of femur, 84-femoral shaft.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1: in order to surgical doctor can be made, site of puncture, direction and angle are accurately located, improve procedure efficiency, increase operation safety, the present invention is by for forming main body to the fixing by gross bearings plate 1 of neck of femur plane and angle orientation and angle orientation rod 2, described fixing by gross bearings plate 1 and angle orientation rod 2 ends, one end are connected by movable joint 3, arbitrarily can adjust fixing by gross bearings plate 1 major axis and angle orientation rod 2 major axis angulation angles.
Particularly, fixing by gross bearings plate 1 is preferably rectangular slab structure.With reference to the operation under C arm machine is auxiliary of preoperative image data during use: first, by fixing by gross bearings plate 1 major axis and femoral shaft longer axis parallel, fixing by gross bearings plate 1 rotates around Ipsilateral thigh epidermis, make fixing by gross bearings plate 1 major axis median line and neck of femur major axis in one plane, and make fixing by gross bearings plate 1 be positioned at the offside thigh epidermis of the corresponding neck of femur of femoral shaft; Then, keep fixing by gross bearings plate 1 and neck of femur aforementioned location relation, be close to thigh epidermis and move fixing by gross bearings plate 1 along the translation of femoral shaft major axis, make movable joint 3 be on neck of femur major axis extended line; Finally, rotated the position of adjustment angle orientation rod 2 by movable joint 3, make angle orientation rod 2 major axis overlapping with neck of femur major axis and reach operation angle.Now, location completes, and squeezes into guided puncturing needle, and then squeeze into hollow screw group along angle orientation rod 2 major axis under ultrasonic puncture needle guide.Three pieces of drive screws are squeezed into and are only needed duplication similarity to operate.
Described fixing by gross bearings plate 1 arranges angular measurement plate 4 centered by movable joint 3, in order to measure the angle of fixing by gross bearings plate 1 major axis and angle orientation rod 2 major axis angulation in angular measurement plate 4 plane.
As shown in Figure 2: in the embodiment of the present invention, described angular measurement plate 4 is preferably semicircular structure, centered by the semi-circle shape center of circle (i.e. the sphere mid point of movable joint 3), at arc edge labelling angular measurement plate graduation mark 42, in order to accurately to measure fixing by gross bearings plate 1 and angle orientation rod 2 at angular measurement plate 4 angulation, for operation provides precise positioning.
Angular measurement plate hollow bulb 43 is set near position, the center of circle is preferably vacant in the middle of the angular measurement plate 4 of described semi-circle shape, avoiding angular measurement plate 4 to affect because holding movable joint 3 external structure to take measurement of an angle, also avoiding angular measurement plate 4 to affect the rotation of angle orientation rod 2 by movable joint 3.
Contiguous movable joint 3 one end of described fixing by gross bearings plate 1 arranges joint temporary securing mechanism 5, can be temporary fixed or get loose to the position of orientation location-plate 1 and angle orientation rod 2.Like this, after location completes, lock joint temporary securing mechanism 5, make the position of fixing by gross bearings plate 1 and angle orientation rod 2 temporary fixed, avoid, in subsequent operation, shift in position occurs, reduce error chance of occurrence.After puncture procedure completes, get loose joint temporary securing mechanism 5, removes the present invention to get loose, and carries out subsequent procedures operation.Like this, squeeze in the positioning action before next piece of drive screw and can reuse this device.
As described in Fig. 3 and Fig. 4: as described in joint temporary securing mechanism 5 comprise the joint positioning screw hole 51 that is arranged on contiguous movable joint 3 one end of fixing by gross bearings plate 1 and the adaptive and joint bolt 52 be embedded in joint positioning screw hole 51 with joint positioning screw hole 51.Joint positioning screw hole 51 runs through by fixing by gross bearings plate 1 contiguous movable joint 3 one end circular pore space structure the surface being communicated with and reaching movable joint 3.Corresponding, joint bolt 52 is the bolt arrangement mated with joint positioning screw hole 51, and the length of described joint bolt 52 is greater than joint positioning screw hole 51.The end that joint bolt 52 is positioned at the outside one end of joint positioning screw hole 51 is expanded and is set to as joint temporary securing mechanism 5, and concrete structure can be set to nut structure.When needing locking joint temporary securing mechanism 5, joint bolt 52 is advanced to movable joint 3 at joint positioning screw hole 51, until joint bolt 52 top is stuck in angle orientation rod 2 ends be arranged in movable joint 3, thus make the position of fixing by gross bearings plate 1 and angle orientation rod 2 temporary fixed.Reverse operating when needing to loosen, repeats no more herein.
Described joint positioning screw hole 51 inwall arranges with joint bolt 52 outer wall the screw thread mated, the operation of the vertical advance of joint bolt 52 in joint positioning screw hole 51 is converted into and rotates advance, increase operational stability, more stable when making joint temporary securing mechanism 5 temporary fixed simultaneously.
The nut structure surface of bolt 52 one end, described joint can arrange lines, increases coefficient of friction during rotation process, convenient operation.The other end end of the corresponding nut structure of described joint bolt 52 arranges flexible glue pad, increases the temporary fixed dynamics of joint temporary securing mechanism 5, reduces the infringement to movable joint 3 inner structure simultaneously.
As shown in Figures 5 and 6: what on described neck of femur guider, corresponding orientation location-plate 1 arranged angle orientation rod 2 arranges positioning baseplate 6 to side, described positioning baseplate 6 for cross section be the platy structure that arc mates with thigh outer shape.Described positioning baseplate 6 arc shaped inside face arranges viscose glue and forms positioning baseplate and paste face 61, and described positioning baseplate 6 arc external side arranges the positioning baseplate scale face 62 of the vertical length graduation mark in length and breadth of distributing.Arranging between described positioning baseplate 6 and fixing by gross bearings plate 1 can by the temporary fixed orientation plate temporary securing mechanism of positioning baseplate 6 and fixing by gross bearings plate 1 position.
Described positioning baseplate 6 position has been selected to utilize the positioning baseplate of medial surface to paste face 61 positioning baseplate 6 can be fixed on thigh epidermis afterwards, and it is more reliable and more stable that the arc-shaped cross-section platy structure mated with thigh outer shape makes positioning baseplate 6 be fixed on thigh epidermis.Positioning baseplate 6 easyly safe can be fixed on thigh epidermis, without the need to additionally using adhesive plaster or other fixing meanss.The concrete fixed position of positioning baseplate 6 is: positioning baseplate pastes the thigh epidermis that face 61 is in the relative femoral shaft offside of neck of femur, and positioning baseplate 6 major axis, neck of femur major axis and femoral shaft major axis are all in same plane.The end of neck of femur extended line and thigh epidermis intersection point Distance positioning substrate 6 one end is 2cm-5cm.
The meaning that orientation plate temporary securing mechanism is arranged is: can be temporarily fixed on the positioning baseplate scale face 62 of positioning baseplate 6 by orientation plate temporary securing mechanism by fixing by gross bearings plate 1, provides facility for follow-up fixing by gross bearings plate 1 position adjust and the operation such as to fix.
Described positioning baseplate scale face 62 arranges the length scale line intersected in length and breadth, and puts on length value.Make described fixing by gross bearings plate 1 when the mobile adjustment in positioning baseplate 6 surface is to femoral shaft and neck of femur location, this graduation apparatus plays accurate positioning action.
Described orientation plate temporary securing mechanism comprises positioning baseplate 6 and is with fixing by gross bearings plate 1 magnetic material attracted each other; Or positioning baseplate 6 is magnetic material with fixing by gross bearings plate 1 one, one is the metal material that can be attracted by magnetic material.The magnetic attraction between positioning baseplate 6 and fixing by gross bearings plate 1 is utilized to make in follow-up fixing by gross bearings plate 1 positioning action fixing by gross bearings plate 1 can easily be temporary fixed or shirk with positioning baseplate 6, extremely easy to use.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 7: as described in movable joint 3 comprise that the joint link slot 31 that is arranged on fixing by gross bearings plate 1 one end and angle orientation rod 2 one end expand that projection formed joint be connected projection 32.Described joint connects projection 32 and joint link slot 31 form fit, and joint connects projection 32 and can set and spacingly also to rotate in joint link slot 31 joint link slot 31 in.In specific embodiments, the minimum angles preferably 30 degree that angle orientation rod 2 major axis and fixing by gross bearings plate 1 plane all directions are formed.
Described be arranged on angle orientation rod 2 one end joint connect projection 32 be preferably convex spherical structure, correspondingly, described in be arranged on the groove that joint, fixing by gross bearings plate 1 one end link slot 31 is more than half spherical structure.Joint connects projection 32 and matches with joint link slot 31 profile and size, and the spherical inner diameter that joint link slot 31 spherical inner diameter connects projection 32 compared with joint is slightly large, makes joint connect projection 32 and can be embedded in large rotation angle in the link slot of joint and not easily deviate from.
As shown in Figure 7: described angle orientation rod 2 runs through major axis and arranges hollow duct 21, its effect is: after the present invention has located puncture direction, guided puncturing needle positions puncture via described hollow duct 21.Described hollow duct 21 internal diameter is the slightly large and coupling of positioning puncture needle external diameter comparatively, and the puncture error that positioning puncture needle is caused at hollow duct 21 bias internal is less, and frictional resistance is less simultaneously, localised puncture relative ease.
The other end end that the hollow duct 21 that described angle orientation rod 2 is arranged connects projection 32 at opposed articulation is set to horn mouth 22, comparatively easy when when making positioning puncture needle import hollow duct 21, localised puncture needle end inserts hollow duct 21, avoid strict alignment operation.
As shown in Figure 8: described angle orientation rod 2 is set to detachable structure, separate the two or more angle orientation rod running through hollow duct 21 of rear formation and separate chunk, after chunk split separated by two or more angle orientation rod, form complete angle orientation rod 2 structures.In specific embodiments of the present invention, described angle orientation rod 2 separates line preferably along the center axis of symmetry, and angle orientation rod 2 is separated, and rear formation one cuts open is 2 two symmetrical angle orientation rod chunks.Certainly, also can be eccentric cutting, and cutting plane differs and is decided to be an even surface, but cutting plane longitudinally must run through hollow duct 21.Its actual clinical meaning is: to complete and after opening joint link slot 31 when puncture needle to position puncture via hollow duct 21, angle orientation rod 2 can be divided into two through cutting plane easily, easily remove angle orientation rod 2 each assemblies through both sides dismounting, the stability of positioning puncture needle can be ensured when 2 dismounting of angle orientation rod.Certainly, angle orientation rod 2 is separated as chunk separated by multiple angle orientation rod, for reaching the object of separating structure, hollow duct 21 remnants of defeated troops duct that any part cross section of separating any one angle orientation rod chunk of rear formation is formed all should be less than half hollow duct 21, and puncture needle can be taken out easily from hollow duct 21 remnants of defeated troops duct of any one angle orientation rod chunk.
As shown in Fig. 9, Figure 10 and Figure 11: as described in joint link slot 31 position of fixing by gross bearings plate 1 one end be set to detachable structure, separate rear formation arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12.After described arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12 are separated, the joint be embedded in joint link slot 31 connects projection 32 and can deviate from from the groove of half groove fixing by gross bearings plate 12 end easily.Describedly separate split face preferably along median line cross-section joint link slot 31, meaning is: after positioning puncture needle completes localised puncture, makes joint link slot 31 dialysis by this detaching structure, thus dismounting fixing by gross bearings plate 1; And carry out the disassembling section of next step angle orientation rod 2.
As shown in Figures 10 and 11: described arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12 split connecting portion arrange orientation plate temporary locking mechanism.Described orientation plate temporary locking mechanism by arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12 split and temporary locking becomes whole fixing by gross bearings plate 1 structure, can dismantle orientation location-plate 1 through orientation plate temporary locking mechanism after localised puncture completes.Its meaning is equal to the meaning that joint link slot 31 part is set to detachable structure, repeats no more herein.
As shown in Figure 9: described orientation plate temporary locking mechanism comprises the point-like being arranged on joint link slot 31 weak part and cuts off off-line 13.Before puncture needle localised puncture completes, fixing by gross bearings plate 1 cuts off off-line 13 via point-like and is connected to become entirety, bears complete function.After puncture needle localised puncture completes, firmly tear the two ends that fixing by gross bearings plate 1 point-like cuts off off-line 13, make fixing by gross bearings plate 1 cut off off-line 13 via point-like and be fractured into arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12.Point-like cuts off the one that off-line 13 is the detachable structures of above-mentioned joint link slot 31, and function and meaning repeat no more.
As shown in Figure 10, Figure 11: described orientation plate temporary locking mechanism also comprises buckle structure, according to this structure: described fixing by gross bearings plate 1 is set to from disconnected structure at joint link slot 31 position, described fixing by gross bearings plate 1 is through being split as arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12 from broken string.In the contiguous split of arthrodesis portion fixing by gross bearings plate 11, two buckle axle blocks 71 are set respectively from the side, both sides of one end of broken string, buckle clasp 72 is set respectively through two buckle axle blocks 71.Correspondingly, the contiguous split of half groove fixing by gross bearings plate 12 arranges buckle button block 73 respectively from side, both sides, one end corresponding position of broken string.Arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12 are along split after broken string split, and the buckle clasp 72 of described both sides snaps in corresponding buckle respectively and buckles block 73.Now, arthrodesis portion fixing by gross bearings plate 11 and half groove fixing by gross bearings plate 12 split are that a fixing by gross bearings plate 1 is overall.When needing, open both sides buckle clasp 72, dismounting can be carried out to joint link slot 31 open.Certainly, described orientation plate is consolidated locking mechanism temporarily and is also comprised many forms, and functional meaning is equal to the meaning that joint link slot 31 part is set to detachable structure, just can repeat assembling and use, repeat no more herein.
As shown in Figure 2: the two ends of described angular measurement plate 4 semicircular structure arrange angular measurement plate respectively and fix projection 41.Correspondingly, as shown in Fig. 3, Fig. 4, Fig. 9, Figure 10 and Figure 11: as described in fixing by gross bearings plate 1 fix position corresponding to projection 41 with angular measurement plate angular measurement plate fixed groove 14 be set respectively.Described angular measurement plate fixed groove 14 is positioned in the plane of fixing by gross bearings plate 1 the same side with angle orientation rod 2, and two angular measurement plate fixed grooves 14 are symmetrical with movable joint 3 median line.Described angular measurement plate is fixed projection 41 and can be set spacing in angular measurement plate fixed groove 14, makes angular measurement plate 4 can fix projection 41 line along two angular measurement plates and is axis rotation and not easily deviates from.Like this, during the angle orientation rod 2 arbitrarily angled orientation of adjustment, rotation angle measurement plate 4 makes it rod 2 is parallel with angle orientation to be close to, and all can measure angle orientation rod 2 and fixing by gross bearings plate 1 major axis angulation angle in angular measurement plate 4 plane.
Concrete, the angular measurement plate that described angular measurement plate 4 is arranged is fixed projection 41 and is set to cylindrical structure, and correspondingly, the angular measurement plate fixed groove 14 that described fixing by gross bearings plate 1 is arranged is more than half cylinder groove.Described angular measurement plate fixed groove 14 profile and angular measurement plate fix projection 41 form fit, and internal diameter is slightly large.Make described angular measurement plate fix projection 41 and can set spacing rotation in angular measurement plate fixed groove 14, and difficult drop-off.
The angular measurement plate that described angular measurement plate 4 is arranged is fixed projection 41 and also can be set to as convex spherical structure.Correspondingly, the angular measurement plate fixed groove 14 that described fixing by gross bearings plate 1 is arranged is more than half spherical structure groove, and it is similar that its profile and angular measurement plate fix projection 41, and size is slightly large.Make described angular measurement plate fix projection 41 and can set spacing rotation in angular measurement plate fixed groove 14, and difficult drop-off.
As shown in figure 12, for having located rear the present invention and femur locations relation.Now, positioning baseplate 6 is pasted and is positioned at the thigh epidermis of neck of femur 83 at femoral shaft 84 offside; Positioning baseplate 6 with fixing by gross bearings plate 1 longer axis parallel and with femoral shaft 84 in the same way; Meanwhile, movable joint 3 is on neck of femur 83 extended line; Angle orientation rod 2 long axis directions are overlapping with neck of femur 83 extended line; Angle orientation rod 2 major axis extended lines point to femoral head 81 by the fracture line 82 on neck of femur 83.
Conveniently clinical practice of the present invention, all material is all preferably under x-ray can developing material, can read the position relationship of femur and the present invention's each parts during use under x-ray development, conveniently adjusts each module position relation when locating.
The present invention, carries out coarse localization by positioning baseplate 6 to puncture direction, is positioned positioning baseplate 6 surface is mobile by fixing by gross bearings plate 1 to point of puncture, adjusts angle orientation rod 2 wear last angle orientation to location and position by movable joint 3.By being arranged on the angular measurement plate 4 on fixing by gross bearings plate 1, positioning action blindness being declined, locating more efficient.After Needle localization has operated, by orientation plate temporary locking mechanism dismounting open joint link slot 31, and then the angle orientation rod 2 of the open multiple assembling parts of dismounting, thus total of the present invention is removed in dismounting, only retain guiding puncture needle, avoid affecting subsequent procedures operation.It is convenient, easy to use that the present invention makes operation technique locate, and improves procedure efficiency, reduce operating difficulty, safe and reliable.
Claims (10)
1. a neck of femur guider, it is characterized in that: comprise for the fixing by gross bearings plate (1) of neck of femur plane and angle orientation and angle orientation rod (2), described fixing by gross bearings plate (1) is connected by movable joint (3) with the end, one end of angle orientation rod (2).
2. neck of femur guider according to claim 1, is characterized in that: described fixing by gross bearings plate (1) arranges the angular measurement plate (4) of be used for taking measurement of an angle locating bar (2) and fixing by gross bearings plate (1) angulation angle centered by movable joint (3).
3. neck of femur guider according to claim 1, is characterized in that: contiguous movable joint (3) one end of described fixing by gross bearings plate (1) arranges the joint temporary securing mechanism (5) be used for temporary fixed for the position of fixing by gross bearings plate (1) and angle orientation rod (2); Described joint temporary securing mechanism (5) comprises the joint positioning screw hole (51) being arranged on contiguous movable joint (3) one end of measurement and positioning plate (1) and the joint bolt (52) be embedded in joint positioning screw hole (51); Described joint positioning screw hole (51) is run through by measurement and positioning plate (1) surface and is communicated with movable joint (3); Also with joint positioning screw hole (51) is adaptive can advances along joint positioning screw hole (51) major axis or retreat in described joint bolt (52) in joint positioning screw hole (51).
4. neck of femur guider according to claim 1, it is characterized in that: what on described neck of femur guider, corresponding orientation location-plate (1) arranged angle orientation rod (2) arranges positioning baseplate (6) to side, described positioning baseplate (6) for cross section be the platy structure that arc mates with thigh outer shape; Described positioning baseplate (6) arc shaped inside face arranges viscose glue positioning baseplate and pastes face (61); Described positioning baseplate (6) arc external side arranges the positioning baseplate scale face (62) of the vertical length graduation mark in length and breadth of distributing; Arranging between described positioning baseplate (6) and fixing by gross bearings plate (1) can by the temporary fixed orientation plate temporary securing mechanism of positioning baseplate (6) and fixing by gross bearings plate (1) position.
5. neck of femur guider according to claim 4, is characterized in that: described orientation plate temporary securing mechanism comprises: described positioning baseplate (6) and fixing by gross bearings plate (1) magnetic material for attracting each other; Or positioning baseplate (6) and fixing by gross bearings plate (1) are magnetic material, one is the metal material that can be attracted by magnetic material.
6. the neck of femur guider according to claims 1, is characterized in that: described movable joint (3) comprise that the joint link slot (31) that is arranged on fixing by gross bearings plate (1) one end and angle orientation rod (2) one end expand that projection formed joint be connected projection (32); Described joint connects projection (32) and joint link slot (31) form fit, and joint connects projection (32) and can set and spacingly also to rotate in joint link slot (31) joint link slot (31) in.
7. the neck of femur guider according to claims 1, is characterized in that: described angle orientation rod (2) is run through major axis and arranged hollow duct (21); Described angle orientation rod (2) connects the other end hollow duct (21) of projection (32) end at opposed articulation arranges horn mouth (22).
8. the neck of femur guider according to claims 7, it is characterized in that: described angle orientation rod (2) is detachable structure, separate the two or more angle orientation rod running through hollow duct (21) of rear formation and separate chunk, after chunk split separated by two or more angle orientation rod, form complete angle orientation rod (2) structure.
9. the neck of femur guider according to claims 6, it is characterized in that: joint link slot (31) part of described fixing by gross bearings plate (1) one end is set to detachable structure, separates rear formation arthrodesis portion fixing by gross bearings plate (11) and half groove fixing by gross bearings plate (12); After described arthrodesis portion fixing by gross bearings plate (11) is separated, being embedded in joint link slot (31) intrinsic articulation connection projection (32) can deviate from from the groove of half groove fixing by gross bearings plate (12) end; Described orientation plate temporary locking mechanism comprises the point-like being arranged on joint link slot (31) weak part and cuts off off-line (13);
Described arthrodesis portion fixing by gross bearings plate (11) and half groove fixing by gross bearings plate (12) split connecting portion arrange orientation plate temporary locking mechanism, and arthrodesis portion fixing by gross bearings plate (11) and half groove fixing by gross bearings plate (12) split can be formed complete fixing by gross bearings plate (1) structure and temporary locking by described orientation plate temporary locking mechanism.
10. neck of femur guider according to claim 2, it is characterized in that: described angular measurement plate (4) is semi-circle shape, edge, semi-circular arc face arranges angular measurement plate graduation mark (42), and the both ends of semi-circle shape are arranged can fix projection (41) by the angular measurement plate be movably connected on fixing by gross bearings plate (1) by angular measurement plate (4); Described fixing by gross bearings plate (1) and angular measurement plate are fixed the corresponding position connected of projection (41) and are arranged and can fix projection (41) to angular measurement plate and set the spacing and angular measurement plate fixed groove (14) rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773085.7A CN104490465B (en) | 2014-12-15 | 2014-12-15 | Femoral neck guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773085.7A CN104490465B (en) | 2014-12-15 | 2014-12-15 | Femoral neck guider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104490465A true CN104490465A (en) | 2015-04-08 |
| CN104490465B CN104490465B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410773085.7A Expired - Fee Related CN104490465B (en) | 2014-12-15 | 2014-12-15 | Femoral neck guider |
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| Country | Link |
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| CN (1) | CN104490465B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137374A (en) * | 2015-04-30 | 2016-11-23 | 山东威高骨科材料股份有限公司 | Anterior cervical vertebrae internal fixation guider |
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| US20030040753A1 (en) * | 1997-06-19 | 2003-02-27 | Wolfgang Daum | Cranial guide device and methods |
| US20030055436A1 (en) * | 2001-09-14 | 2003-03-20 | Wolfgang Daum | Navigation of a medical instrument |
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| CN2857864Y (en) * | 2005-12-19 | 2007-01-17 | 戴维享 | Dynamic coax/condylus three-dimensional angle guide |
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| CN106137374A (en) * | 2015-04-30 | 2016-11-23 | 山东威高骨科材料股份有限公司 | Anterior cervical vertebrae internal fixation guider |
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| CN104490465B (en) | 2017-04-12 |
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