CN109009399A - Fracture of neck of femur hollow nail accurate-location device - Google Patents
Fracture of neck of femur hollow nail accurate-location device Download PDFInfo
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- CN109009399A CN109009399A CN201810633312.4A CN201810633312A CN109009399A CN 109009399 A CN109009399 A CN 109009399A CN 201810633312 A CN201810633312 A CN 201810633312A CN 109009399 A CN109009399 A CN 109009399A
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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
- A61B17/8897—Guide wires or guide pins
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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
-
- 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
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- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a kind of fracture of neck of femur hollow nail accurate-location devices, and three-dimensional adjustable shelf is installed on hold assembly and is provided with a pair of of universal joint；Universal joint includes universal shaft interior spheroid and interior spheroid locking pin, the two matching is set in together, run through in the interior spheroid axis hole of left and right universal joint and a neck of femur centre pilot pipe is installed, it is set with rotational positioner on neck of femur centre pilot pipe, the center mounting hole of the rotational positioner is sleeved on the outside of the guide pipe and can be freely rotated；It is located at center mounting hole peripheral position in cylinder-shaped body to be respectively arranged with and axis parallel and perforative intramedullary nail pilot hole.The present invention is without additional fixing glue and the fixed frame being bonded with neck of femur position, it can be achieved that any angle of neck of femur centre pilot pipe is adjusted, so that greatly improving neck of femur guide pin in noninvasive situation aims at success rate.
Description
Technical field:
The invention belongs to fracture of neck of femur locating apparatus fields, and in particular to a kind of fracture of neck of femur hollow nail precise positioning dress
It sets.
Background technique:
Currently, human society enters aging, neck of femur and intertrochanteric fracture of the femur are the common frdquently encountered diseases of the elderly.Neck of femur
It when fracture or intertrochanteric fracture carry out screw and fixed pegboard systems, first has to squeeze into neck of femur guide pin, and beats guide pin and be mainly
Control collodiaphyseal angle and top rake.There is accurate, easy sighting device to the collodiaphyseal angle control of guide pin at present, and to top rake
Control still rests on the basis of micro-judgment；In addition, when fracture of neck of femur is fixed using hollow screw, three pieces of guide pin positions
It needs repeatedly to adjust in art, and it is difficult to ensure that be parallel to each other, becomes Operative Puzzle.Since neck of femur anatomical structure is special,
There are collodiaphyseal angle and top rake in Different Plane, and position it is deep, it is hidden so that positioning guide pin is properly placed into the presence of certain
Difficulty.When clinical internal fixation treatment neck of femur and intertrochanteric fracture of the femur, it is both needed to first be placed in guide pin positioning.Usually with doctor
Clinical experience carries out guide pin merging, is both needed to that C arm machine is used to be had an X-rayed after each inserting needle to check whether guide pin enters in place,
But it is common because its entry point or up or down offset, top rake and collodiaphyseal angle grasp are bad, cause positioning guide pin that cannot be properly placed into.
Many scholars devise some surgical instruments in recent years, or even apply computer assisted navigation system.It is designing
In the similar instrument of principle, fixed point puncture needle need to be punctured to late-segmental collapse point, and the patients with fracture of neck reduction of the fracture needs more
Maintain lower limb inward turning position, at this point, the point is embedded by acetabular bone, be not easy to be punctured to, and the point from abdominal cavity and thigh nervus vasculairs compared with
Closely, these vital tissues are easily stabbed.Using conventional DSH angle guideline, pierced after guide pin in art such as find it is on the upper side or inclined
Under, guide pin need to be taken out, is pierced again after adjustment, it is such as dissatisfied, need repetitive operation again.Lead to multiple inserting needle repeatedly, gives patient
Iatrogenic damage is brought, repetitious C arm machine perspective brings radiation injury to patient and medical staff.
Summary of the invention:
The present invention needs first to squeeze into neck of femur guide pin when carrying out hollow nail fixed operation for fracture of neck of femur, and it is main to beat guide pin
When control collodiaphyseal angle and top rake the problem of having difficulties and needing repeatedly adjustment, and squeeze into hollow nail on the basis of guide pin
There are problems that troublesome in poeration and positioning accuracy difference is easy to cause operative failure, it is precisely fixed to provide a kind of fracture of neck of femur hollow nail
Position device, to reach quick and precisely and the positioning of stable guide pin and hollow nail guide-localization operate purpose.
Technical solution: a kind of fracture of neck of femur hollow nail accurate-location device, including the clamping part being connect with immobilization carrier
Part is mounted on hold assembly and is provided with elevating translational mechanism, and longitudinal translation mechanism is provided in elevating translational mechanism, vertical
Laterial translation mechanism there are two being arranged in parallel on translation mechanism, the end positioned at two laterial translation mechanisms is respectively arranged with ten thousand
Xiang Jie；The universal joint includes universal shaft interior spheroid and the outer spherical shell of universal shaft, and the two matching is set in together, in the universal shaft
Sphere is provided with the axis hole of the heart therethrough, runs through in the interior spheroid axis hole of the left and right universal joint and is equipped with a femur
Neck centre pilot pipe is set with rotational positioner on neck of femur centre pilot pipe, which includes cylinder-shaped body,
The shaft core position of the cylinder-shaped body is provided with center mounting hole, and cylinder-shaped body is sleeved on the femur by center mounting hole
On the outside of neck centre pilot pipe, and it can be freely rotated；Cylinder-shaped body be located at center mounting hole peripheral position be respectively arranged with
Axis parallel and perforative hollow nail pilot hole.
A kind of fracture of neck of femur hollow nail accurate-location device is mounted on including the hold assembly connecting with immobilization carrier
It is provided with elevating translational mechanism on hold assembly, longitudinal translation mechanism is provided in elevating translational mechanism, in longitudinal translation machine
Laterial translation mechanism there are two being arranged in parallel on structure, the end positioned at two laterial translation mechanisms is respectively arranged with universal joint；Institute
Stating universal joint includes universal shaft interior spheroid and the outer spherical shell of universal shaft, and the two matching is set in together, and the universal shaft interior spheroid is set
It is equipped with the axis hole of the heart therethrough, runs through in the interior spheroid axis hole of the left and right universal joint and a neck of femur center is installed
Guide pipe is set with rotational positioner on neck of femur centre pilot pipe, which includes cylinder-shaped body, the cylinder
The shaft core position of shape main body is provided with center mounting hole, and cylinder-shaped body is sleeved on the neck of femur center by center mounting hole
On the outside of guide pipe, and it can be freely rotated；It is located at center mounting hole peripheral position in cylinder-shaped body and has been disposed radially radial guiding
Xiang Kong, in radially-directed hole, Matching installation has a radial slider, the side of radial slider be provided with radial parallel screw hole, with spiral shell
Mounting hole is provided on the cylinder-shaped body of hole corresponding position, Matching installation has an adjusting rod in mounting hole, one end of adjusting rod or
Both ends setting block machine prevents it from deviating from out of mounting hole, and screw thread is arranged in the middle part of adjusting rod, is mounted on the spiral shell in the middle part of adjusting rod
Kong Zhong.The outer middle side part of the radial slider is provided with guiding scale, and is provided with scale relief hole on cylinder-shaped body,
Guiding scale is pierced by out of its relief hole；It is provided in the radial slider and axis parallel and perforative hollow nail guiding
Hole.
It is set with locating slide sleeve positioned at neck of femur centre pilot pipe end, is positioned for constraining rotational positioner.
Closing piece is installed respectively positioned at the end of two laterial translation mechanisms, each closing piece is provided with vertical hole, each closing piece
Side wall is vertically installed with connecting bar locking pin；Connecting rod is fixed on the outer spherical shell of the universal shaft, connecting rod Matching installation is in corresponding closing piece
Vertical hole in, connecting rod is fixed by connecting bar locking pin.
It is fixed with adjusting set positioned at the upper end of the column, the two sides of adjusting set are respectively arranged with vertical dovetail chute, the vertical pole
For the vertical pole of two independent symmetricals, vertical dovetail slide block, vertical dovetail slide block matching peace is respectively set in the inner end of two independent vertical poles
Loaded in corresponding vertical dovetail chute.
It is respectively arranged with vertical dovetail chute on two horizontal sets being located on stringer, the inner end of the cross bar is respectively set
Vertical dovetail slide block, vertical dovetail slide block Matching installation is in corresponding vertical dovetail chute.
The invention has the following beneficial effects: relative at present must be by neck of femur when positioning to neck of femur guide pin
Guide pin component is fixed on the status of neck of femur position, and the present invention is when positioning neck of femur guide pin, without additional fixation
Nail and the fixed frame being bonded with neck of femur position, but by the way that left and right two universal joint inner ends can be made to three-dimensional framework adjusting
Neck of femur centre pilot pipe, which is moved to, connects subparallel range with femur inner end hollow nail.Ball in the outer spherical shell of universal shaft and universal shaft
Body can arbitrarily be swung, and the axis hole of universal shaft interior spheroid is made to be in any angle.When left and right two universal joints cooperate, in conjunction with even
The adjusting of bar and closing piece is, it can be achieved that any angle of neck of femur centre pilot pipe is adjusted.It realizes in the appropriate range to femur
The purpose that neck centre pilot pipe is adjusted at any angle, thus greatly improved in noninvasive situation neck of femur guide pin aim at
Power.
Present invention employs using neck of femur guide pin as fixed axis, hollow nail is determined by the rotation of rotational positioner
Installation site.It can remain hollow nail and neck of femur guide pin parastate backspin modulation section and positioning.Thus, it is possible to realize
Rapidly and accurately to the purpose of hollow nail positioned parallel.
The present invention in rotational positioner by being arranged the adjusting slider of adjustable radial spacing, so as to control sky
The heart follows closely pilot hole and reaches different radial positions, realizes hollow nail purpose parallel and adjustable in pitch with neck of femur guide pin.
Detailed description of the invention
Fig. 1 is neck of femur guide pin and femur hollow nail installation condition schematic diagram.
Fig. 2 is schematic perspective view of the invention.
Fig. 3 is the schematic diagram of the section structure of universal joint in Fig. 2.
Fig. 4 is one of the end construction schematic diagram that stationary rotary locator is used in Fig. 2.
Fig. 5 is in Fig. 2 using the two of the end construction schematic diagram of stationary rotary locator.
Fig. 6 is the schematic diagram of the section structure that adjustable type rotational positioner is used in Fig. 2.
Figure label 1 is hold assembly, and 2 be fixing sleeve, and 3 be column, and 4 be column locking pin, and 5 be vertical set, and 6 be vertical pole,
7 be vertical pole locking pin, and 8 be horizontal set, and 9 be cross bar, and 10 be cross bar locking pin, and 11 be closing piece, and 12 be connecting rod, and 13 be connecting bar locking
Pin, 14 be the outer spherical shell of universal shaft, and 15 be universal shaft interior spheroid, and 17 be neck of femur centre pilot pipe, and 18 be rotational positioner main body,
19 be center mounting hole, and 20 be fixed hollow nail pilot hole, and 20a is movable hollow nail pilot hole, and 21 be positioning reference ball,
22 be radially-directed hole, and 23 be radial slider, and 24 be screw hole, and 25 be adjusting rod, and 26 be guiding scale, and 27 be scale line of reference,
28 be locating slide sleeve, and 29 be hollow nail, and 30 be neck of femur guide pin.
Specific embodiment:
Embodiment 1: as shown in Figure 1, when fixed to fracture of neck of femur position progress hollow nail, it is necessary first to neck of femur guide pin
It is positioned, and needs to keep hollow nail parallel with neck of femur guide pin.It is existing when clinically squeezing into guide pin, due to the control of top rake
System lacks bone mark, becomes operation difficulties.And side position fluoroscopy during operation is relative complex, and clarity is not good enough yet, Chang Yinwei adjustment
Top rake and waste many times.Neck of femur and intertrochanteric fracture are mostly the elderly, extend operating time and considerably increase risk,
And loose due to fracturing, to the front and top rake to the rear is also that postoperative screw is caused to cut the important original being pierced by neck of femur
Cause.The present embodiment can be realized using positioning device as shown in Figure 2 and quick and precisely operate, and without to human femur under loading neck position
It sets and is auxiliarily fixed, operating time can be shortened, reduce wound area, reduce amount of bleeding.It can be seen by the mode of operation of Fig. 1
Out, neck of femur centre pilot pipe can carry rotational positioner main body and turn an angle in the horizontal direction, in favor of X-ray system
Perspective needs, and can also vertically adjust the angle, and is adjusted by recording and calculating rotational angle and reduction, is finally reached most
Good positioning.
The lower end of fracture of neck of femur hollow nail accurate-location device as shown in Figure 2 is provided with hold assembly 1, in surgical procedure
In, hold assembly 1 is fixed on carrier.Carrier can be hospital bed guardrail perhaps instrument fixing rack or other be fixed on ground
The component of face or metope.1 wide variety of hold assembly, mainly based on fixation.
D translation mechanism is set on hold assembly 1, is mainly included on hold assembly 1 the elevating translational machine that is provided with
Structure is provided with longitudinal translation mechanism in elevating translational mechanism, is arranged in parallel in longitudinal translation mechanism there are two transverse translation
Mechanism.Specifically, fixing sleeve is set on hold assembly 1, matching is set with column in fixing sleeve, vertical in the upper end of the column installation
Set indulges set side right angle setting vertical pole locking pin, and Matching installation has the vertical pole of longitudinal translation mechanism in vertical cover；Pacify on vertical pole
Equipped with horizontal set, horizontal set side wall is vertically installed with cross bar locking pin, and matching is set with the cross bar of laterial translation mechanism in horizontal set.
Closing piece 11, Mei Gesuo is installed respectively positioned at the end (end of i.e. two parallel cross bars) of two laterial translation mechanisms
Block 11 is provided with vertical hole, and each 11 side wall of closing piece is vertically installed with connecting bar locking pin 13.
If the universal joint in Fig. 2 and Fig. 3 includes spherical shell 14 outside universal shaft interior spheroid 15 and universal shaft, the two matching is sleeved on
Together, connecting rod 12 is fixed on the outer spherical shell 14 of the universal shaft, 12 Matching installation of connecting rod leads in the vertical hole of corresponding closing piece 11
It is fixed to connecting rod 12 to cross connecting bar locking pin 13.
Universal shaft interior spheroid 15 is provided with the axis hole of the heart therethrough, through installation in the interior spheroid axis hole of left and right universal joint
There is a neck of femur centre pilot pipe 17.
It is set with rotational positioner on neck of femur centre pilot pipe 17, is located at 17 end of neck of femur centre pilot pipe and is set with
There is locating slide sleeve 28, is positioned for constraining rotational positioner, prevent its axial movement.
As shown in figure 4, the rotational positioner includes cylinder-shaped body, the shaft core position of the cylinder-shaped body is provided with center
Mounting hole 19, cylinder-shaped body are sleeved on 17 outside of neck of femur centre pilot pipe by center mounting hole 19, and can be freely
Rotation.It is located at 19 peripheral position of center mounting hole in cylinder-shaped body and is respectively arranged with sky with axis parallel and perforative fixation
The heart follows closely pilot hole 20.The hollow nail pilot hole 20 for waiting the fixation of radiuses is used in the present embodiment, i.e., the hollow nail of each fixation is led
Circle center distance centre pilot pipe circle center distance to hole 20 is identical.This structure is relatively simple, easy to operate.Used rotation
The model of locator can according to need outfit, such as a certain model specified according to same radius distance value, or according to aperture
Specify certain model.Femur guide pin 29 is sleeved in neck of femur centre pilot pipe 17, is base with neck of femur centre pilot pipe 17
Plinth carries out nailing operation by the guiding role of neck of femur centre pilot pipe 17.Hollow nail 30 is sleeved on hollow nail pilot hole 20
It is interior, nailing operation is carried out based on rotational positioner.
Embodiment 2: on that basis of example 1, as shown in figure 5, using the sky of the fixation of radius unequal in the present embodiment
The heart follows closely pilot hole 20, i.e., the circle center distance centre pilot pipe circle center distance of the hollow nail pilot hole 20 of each fixation is not identical.But
20 position of hollow nail pilot hole of each fixation is provided with corresponding scale, so as to quickly distinguish fixed hollow nail pilot hole 20
Place radial location.This structure is relatively simple, easy to operate.Unified rotational positioner model can be used.
Embodiment 3: another fracture of neck of femur hollow nail accurate-location device, as shown in Fig. 2, the positioning device include with
The hold assembly of immobilization carrier connection.It is mounted on hold assembly and is provided with elevating translational mechanism, set in elevating translational mechanism
It is equipped with longitudinal translation mechanism, is arranged in parallel in longitudinal translation mechanism there are two laterial translation mechanism, is located at two transverse translations
The end of mechanism is respectively arranged with universal joint.
As shown in figure 3, universal joint includes universal shaft interior spheroid and the outer spherical shell of universal shaft, the two matching is set in together, institute
State the axis hole that universal shaft interior spheroid is provided with the heart therethrough.
Run through in the interior spheroid axis hole of left and right universal joint and a neck of femur centre pilot pipe 17 is installed.In neck of femur
Rotational positioner is set on centre pilot pipe 17.Shown in Figure 6, which includes cylinder-shaped body, the cylinder
The shaft core position of shape main body is provided with center mounting hole 19, and cylinder-shaped body is sleeved on the neck of femur by center mounting hole 19
17 outside of centre pilot pipe, and can be freely rotated.
Being located at 19 peripheral position of center mounting hole in cylinder-shaped body has been disposed radially radially-directed hole 22 again, in radial direction
22 Matching installation of pilot hole has a radial slider 23, the side of radial slider 23 be provided with radial parallel screw hole 24, with screw hole
Mounting hole is provided on the cylinder-shaped body of 24 corresponding positions, Matching installation has an adjusting rod 25 in mounting hole, and the one of adjusting rod 25
End or both ends setting block machine prevent it from deviating from out of mounting hole, and screw thread is arranged in the middle part of adjusting rod 25, installs in the middle part of adjusting rod 25
In the screw hole 24.
In addition, the present embodiment is provided with guiding scale 26 in the outer middle side part of radial slider 23 again, and in cylinder-shaped body
On be provided with scale relief hole, guiding scale 26 is pierced by out of its relief hole；It is provided in the radial slider 23 and axle center
Parallel and perforative movable hollow nail pilot hole 20a.
Embodiment 4: adjusting set, the two sides of adjusting set are fixed on the basis of embodiment 1 or 2, and being located at the upper end of the column
It is respectively arranged with vertical dovetail chute, the vertical pole is the vertical pole of two independent symmetricals, and the inner end of two independent vertical poles is respectively set
Vertical dovetail slide block, vertical dovetail slide block Matching installation is in corresponding vertical dovetail chute.
Embodiment 5: on the basis of embodiment 1 or 2, being arranged to two parallel columns for the column 3, to exist same
Two independent three-dimensional regulating mechanisms on one pedestal.
Claims (6)
1. a kind of fracture of neck of femur hollow nail accurate-location device is mounted on folder including the hold assembly connecting with immobilization carrier
It holds and is provided with elevating translational mechanism on component, longitudinal translation mechanism is provided in elevating translational mechanism, in longitudinal translation mechanism
On be arranged in parallel there are two laterial translation mechanism, the end positioned at two laterial translation mechanisms is respectively arranged with universal joint；It is described
Universal joint includes universal shaft interior spheroid and the outer spherical shell of universal shaft, and the two matching is set in together, the universal shaft interior spheroid setting
There is the axis hole of the heart therethrough, a femur is installed it is characterized in that: running through in the interior spheroid axis hole of the left and right universal joint
Neck centre pilot pipe is set with rotational positioner on neck of femur centre pilot pipe, which includes cylinder-shaped body,
The shaft core position of the cylinder-shaped body is provided with center mounting hole, and cylinder-shaped body is sleeved on the femur by center mounting hole
On the outside of neck centre pilot pipe, and it can be freely rotated；Cylinder-shaped body be located at center mounting hole peripheral position be respectively arranged with
Axis parallel and perforative hollow nail pilot hole;It is respectively arranged with vertical dovetail chute on two horizontal sets being located on stringer,
Vertical dovetail slide block is respectively set in the inner end of the cross bar, and vertical dovetail slide block Matching installation is in corresponding vertical dovetail chute
In.
2. a kind of fracture of neck of femur hollow nail accurate-location device is mounted on folder including the hold assembly connecting with immobilization carrier
It holds and is provided with elevating translational mechanism on component, longitudinal translation mechanism is provided in elevating translational mechanism, in longitudinal translation mechanism
On be arranged in parallel there are two laterial translation mechanism, the end positioned at two laterial translation mechanisms is respectively arranged with universal joint；It is described
Universal joint includes universal shaft interior spheroid and the outer spherical shell of universal shaft, and the two matching is set in together, the universal shaft interior spheroid setting
There is the axis hole of the heart therethrough, a femur is installed it is characterized in that: running through in the interior spheroid axis hole of the left and right universal joint
Neck centre pilot pipe is set with rotational positioner on neck of femur centre pilot pipe, which includes cylinder-shaped body,
The shaft core position of the cylinder-shaped body is provided with center mounting hole, and cylinder-shaped body is sleeved on the femur by center mounting hole
On the outside of neck centre pilot pipe, and it can be freely rotated；It is located at center mounting hole peripheral position in cylinder-shaped body to be disposed radially
Radially-directed hole, in radially-directed hole, Matching installation has radial slider, and the side of radial slider is provided with and radial parallel spiral shell
Mounting hole is provided on hole, with the cylinder-shaped body of screw hole corresponding position, Matching installation has adjusting rod in mounting hole, adjusting rod
One or both ends setting block machine prevents it from deviating from out of mounting hole, and screw thread is arranged in the middle part of adjusting rod, is mounted in the middle part of adjusting rod
In the screw hole;Vertical dovetail chute, the inner end difference of the cross bar are respectively arranged on two horizontal sets being located on stringer
Vertical dovetail slide block is set, and vertical dovetail slide block Matching installation is in corresponding vertical dovetail chute.
3. fracture of neck of femur hollow nail accurate-location device according to claim 2, it is characterized in that: in the radial slider
Outer middle side part be provided with guiding scale, and scale relief hole is provided on cylinder-shaped body, guiding scale is from its relief hole
Inside it is pierced by；It is provided in the radial slider and axis parallel and perforative hollow nail pilot hole.
4. fracture of neck of femur hollow nail accurate-location device according to claim 1 or 2, it is characterized in that: being located at neck of femur
Centre pilot pipe end is set with locating slide sleeve, positions for constraining rotational positioner.
5. fracture of neck of femur hollow nail accurate-location device according to claim 1 or 2, it is characterized in that: being located at two cross
Closing piece is installed respectively to the end of translation mechanism, each closing piece is provided with vertical hole, and each closing piece side wall is vertically installed with connecting rod
Locking pin；Connecting rod is fixed on the outer spherical shell of the universal shaft, connecting rod Matching installation passes through connecting rod in the vertical hole of corresponding closing piece
Locking pin fixes connecting rod.
6. fracture of neck of femur hollow nail accurate-location device according to claim 1 or 2, it is characterized in that: being located on column
End is fixed with adjusting set, and the two sides of adjusting set are respectively arranged with vertical dovetail chute, and the vertical pole is the vertical of two independent symmetricals
Vertical dovetail slide block is respectively set in bar, the inner end of two independent vertical poles, and vertical dovetail slide block Matching installation is in corresponding vertical dovetail
In sliding slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633312.4A CN109009399B (en) | 2018-06-20 | 2018-06-20 | Accurate positioner of hollow nail of femoral neck fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633312.4A CN109009399B (en) | 2018-06-20 | 2018-06-20 | Accurate positioner of hollow nail of femoral neck fracture |
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| Publication Number | Publication Date |
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| CN109009399A true CN109009399A (en) | 2018-12-18 |
| CN109009399B CN109009399B (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810633312.4A Active CN109009399B (en) | 2018-06-20 | 2018-06-20 | Accurate positioner of hollow nail of femoral neck fracture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063780A (en) * | 2019-05-22 | 2019-07-30 | 陈聚伍 | Digitize neck of femur guide pin machinery guidance pointing instrumentation |
| CN111772768A (en) * | 2020-08-12 | 2020-10-16 | 邓迎生 | First-level hollow nail minimally invasive mechanical implantation system based on femoral neck surgery central axis |
| CN117297744A (en) * | 2023-10-07 | 2023-12-29 | 中国人民解放军总医院第六医学中心 | Femur neck fracture hollow nail sighting device |
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| CN111772768A (en) * | 2020-08-12 | 2020-10-16 | 邓迎生 | First-level hollow nail minimally invasive mechanical implantation system based on femoral neck surgery central axis |
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| CN117297744A (en) * | 2023-10-07 | 2023-12-29 | 中国人民解放军总医院第六医学中心 | Femur neck fracture hollow nail sighting device |
| CN117297744B (en) * | 2023-10-07 | 2024-03-29 | 中国人民解放军总医院第六医学中心 | Femur neck fracture hollow nail sighting device |
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