CN207055542U - Femoral interlocking nail distal end pointing instrumentation - Google Patents
Femoral interlocking nail distal end pointing instrumentation Download PDFInfo
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- CN207055542U CN207055542U CN201721554045.9U CN201721554045U CN207055542U CN 207055542 U CN207055542 U CN 207055542U CN 201721554045 U CN201721554045 U CN 201721554045U CN 207055542 U CN207055542 U CN 207055542U
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- locking pin
- distal end
- horizontal
- hole
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Abstract
The utility model discloses a kind of femoral interlocking nail distal end pointing instrumentation, using a three-dimensional adjustable shelf being fixed on carrier, the end of the three-dimensional adjustable shelf is provided with left and right two universal joints, the free end of left and right two universal joints is respectively arranged with axis hole, a piece adjusting rod is installed in two axis holes, two heart and parallel footpath holes therethrough are provided with adjusting rod；By setting X-ray transmission to observe the angle of intramedullary nail in femur respectively in the horizontal plane and vertical plane of femur, then adjust left and right two universal joints and make adjusting rod and intramedullary nail keeping parallelism and sustained height in femur；It is provided with into each footpath hole in screw hole corresponding to lock screw and entrance.By coordinating left and right two universal joints the regulation in conjunction with connecting rod and closing piece in the utility model, any angle regulation of adjusting rod can be achieved, femoral interlocking nail distal end is aimed at success rate up to absolutely.
Description
Technical field：
The utility model belongs to femoral interlocking nail lock screw distal end point technique field, and in particular in a kind of femur marrow
Follow closely distal end pointing instrumentation.
Background technology：
At present, the fracture for femur position clinically uses femoral interlocking nail, and intramedullary nail is treatment femoral fracture one
Kind Minimal invasive procedures.A certain degree of deformation can occur after being implanted into due to intramedullary nail in bone, distal locking nail difficulty can often occur
Situation.To reduce the difficult generation of distal locking nail, typically pinning success rate is improved using mechanical aiming device.But use now
Its general principle of mechanical aiming device is that the skew of sight is adjusted by locating rod, the first time pinning of practical clinical
Success rate is not high, it is necessary to which repeatedly drilling to succeed.The skew of sight is adjusted by locating rod, it be after a kind of fixation not
Also offset occurring when can again adjust, but drill after regulating in locating rod, pinning difficulty feelings when necessarily drilling
Condition occurs.
By the incision of skin of fracture in surgical procedure, and in order to which wound area will be lacked, reach minimally invasive purpose, lead to
It is often by one less wound of incision of skin, required femur end is inserted into intramedullary nail, then again with lock screw pair
Intra medullary nail far-end is fixed.Because femur position bone curvature is larger, and bone plate is located at below skin surface, thus can not
Range estimation, therefore the position of corresponding screw hole can not be correctly found.Because intramedullary nail is the technology for the treatment of femoral fracture
It is required that higher, so could not carry out comprehensively, one of difficult point is exactly far-end locking difficulty, there is a variety of sight devices at present（Single-handedly take aim at
Standard, mechanical aiming, magnetic navigation）, remain in many deficiencies.
Utility model content：
The utility model is to lack effective intra medullary nail far-end lock during treating femoral fracture for current intramedullary nail
Determine screw sighting instrument, cause the problem of operation technique difficulty is big, and popularity rate is low, devise new distal aiming device, make stock
Success rate is aimed at up to absolutely in intramedullary pin distal end.
Technical scheme：A kind of femoral interlocking nail distal end pointing instrumentation, including the hold assembly being connected with immobilization carrier, are arranged on
Elevating translational mechanism is provided with hold assembly, longitudinal translation mechanism is provided with elevating translational mechanism, in longitudinal translation machine
It is arranged with two laterial translation mechanisms on structure in parallel, universal joint is respectively arranged with positioned at the end of two laterial translation mechanisms；Institute
Stating universal joint includes universal drive shaft interior spheroid and interior spheroid locking pin, and both are set in together in matching, in universal drive shaft interior spheroid side
Interior spheroid locking pin is vertically installed with, the universal drive shaft interior spheroid is provided through the axis hole at its center, described left and right universal
Through an adjusting rod is provided with the interior spheroid axis hole of section, two heart and parallel footpaths therethrough are provided with adjusting rod
The distance between hole, two footpaths hole is equal to the distance between inner two parallel screw holes of intramedullary nail, in each footpath hole
It is separately installed with lock screw.
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 with the outer spherical shell of the universal drive shaft, connecting rod Matching installation is in corresponding closing piece
Vertical hole in, connecting rod is fixed by connecting bar locking pin.
Adjusting set is fixed with positioned at column upper end, the both sides of adjusting set are respectively arranged with vertical dovetail chute, the vertical pole
For the vertical pole of two independent symmetricals, the inner of two independent vertical poles sets vertical dovetail slide block, vertical dovetail slide block matching peace respectively
Loaded in corresponding vertical dovetail chute.
Vertical dovetail chute is respectively arranged with two horizontal sets on longeron, the inner of the cross bar is set respectively
Vertical dovetail slide block, vertical dovetail slide block Matching installation is in corresponding vertical dovetail chute.
In one end of the adjusting rod or free plumbing bar is provided at both ends with, the axis of free plumbing bar and two footpath hole
Axis is vertical.
Be provided with the exposed junction of the intramedullary nail it is horizontal with reference to bar, it is horizontal parallel with reference to bar and intramedullary nail the inner two
Screw hole is parallel；Or handle is fixed with the exposed junction of the intramedullary nail, and locating groove is provided with handle, it is fixed
The level meter that can flexibly dismantle is installed, level meter is put down with the inner two parallel screw holes of intramedullary nail in the neck of position
OK.
Vertical transfer axle and vertical transfer set are provided with the middle part of the rising tune section telephone-moving structure, both are set in together, and in vertical transfer
Set side wall is vertically connected with the vertical transfer shaft locking pin to vertical transfer shaft locking；Or the lift adjustment machine is on hold assembly
Fixed cover is set, is matched in fixed cover and is set with column, vertical set is installed in column upper end, indulges and covers side right angle setting vertical pole lock
Tight pin, Matching installation has the vertical pole of longitudinal translation mechanism in vertical set；Horizontal set, horizontal set side wall right angle setting are installed on vertical pole
There is cross bar locking pin, the cross bar for being set with laterial translation mechanism is matched in horizontal set.
The lift adjustment machine is that column is fixed on hold assembly, is set with the upside of column and is capable of lifting carriage
It is perpendicular to cover and column locking pin is installed, vertical set is provided with erecting to cover, indulges set side right angle setting vertical pole locking pin, covers interior vertical
With the vertical pole for being provided with longitudinal translation mechanism；Horizontal set is installed on vertical pole, horizontal set side wall is vertically installed with cross bar locking pin, horizontal
Matching is set with the cross bar of laterial translation mechanism in set.
A kind of femoral interlocking nail distal end method of sight, intramedullary nail outer end is adjusted first horizontal ginseng part is set, make its holding
Level, the level are parallel with the inner two parallel screw holes of intramedullary nail with reference to bar；It is fixed on using one on carrier
Three-dimensional adjustable shelf, the end of the three-dimensional adjustable shelf are provided with left and right two universal joints, the free end point of left and right two universal joints
Axis hole is not provided with, an adjusting rod is installed in two axis holes, and two heart and parallel footpaths therethrough are provided with adjusting rod
Hole；Then by setting X-ray transmission to observe the angle of intramedullary nail in femur respectively in the horizontal plane and vertical plane of femur, then adjust
Section three-dimensional adjustable shelf makes to be in close to intramedullary nail parallel position in parallel and femur positioned at adjusting rod, then adjusts left and right two respectively
Individual universal joint makes adjusting rod and intramedullary nail keeping parallelism and sustained height in femur；Then adjusting rod and intramedullary nail are rotated respectively,
Make two screw hole keep levels alignment in the two footpaths hole and intramedullary nail the inner on adjusting rod, into each footpath hole
It is provided with screw hole corresponding to lock screw and entrance.
The method for keeping two footpath hole horizontals on adjusting rod is that have free plumbing bar in the end set of adjusting rod, is freely hung down
The axis of bar is vertical with the axis in two footpath hole.
The utility model has the advantages that：The utility model to three-dimensional framework regulation by that can make left and right two
Individual universal joint the inner adjusting rod is moved to connects subparallel scope with femur the inner intramedullary nail.In universal drive shaft outer spherical shell and universal drive shaft
Spheroid can arbitrarily be swung, and the axis hole of universal drive shaft interior spheroid is in any angle.When left and right two universal joints coordinate, with reference to
The regulation of connecting rod and closing piece, any angle regulation of adjusting rod can be achieved.Realize in proper range to adjusting rod random angle
The purpose of the regulation of degree, femoral interlocking nail distal end is set to aim at success rate up to absolutely.
Under X-ray projection effect, keep the intramedullary nail keeping parallelism in adjusting rod and femur and be located at sustained height.So as to
It is translated into beneficial to lock screw from two positioning holes of adjusting rod in two inner screw holes of intramedullary nail.
By the way that in the free plumbing bar of adjusting rod end set, two adjustment holes on adjusting rod can be kept automatically all in water
Level state.I.e. after adjusting rod is conditioned with intramedullary nail sustained height and parallel situation, kept after relaxation interior spheroid locking pin
After free plumbing bar is in free hang, in locking interior spheroid locking pin.
The utility model is provided with horizontal reference bar in the outer end of intramedullary nail, can adjust intramedullary nail from outside, make in marrow
Follow closely two inner screw hole keep levels.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Fig. 2 is another relation schematic diagram that set and vertical pole are indulged in Fig. 1.
Fig. 3 is another relation schematic diagram of horizontal set and cross bar in Fig. 1.
Fig. 4 is the schematic diagram that two independent three-dimensional regulation structures are realized using double columns.
Label 1 is hold assembly in figure, and 2 be fixed cover, and 3 be column, and 4 be column locking pin, and 5 be vertical set, and 5a is regulation
Set, 6 be vertical pole, and 6a is independent vertical pole, and 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 lock
Block, 12 be connecting rod, and 13 be connecting bar locking pin, and 14 be the outer spherical shell of universal drive shaft, and 15 be universal drive shaft interior spheroid, and 16 be that interior spheroid is locked
Pin, 17 be adjusting rod, and 18 be adjusting rod positioning hole, and 19 be lock screw, and 20 be free plumbing bar, and 21 be vertical transfer axle, and 22 be vertical transfer
Set, 23 be vertical transfer shaft locking pin, and 24 be intramedullary nail, 25 adjustable sides, and 26 be horizontal reference bar, and 27 be handle, and 28 be level meter, 29
It is vertical dovetail chute for locating groove, 30,31 be vertical dovetail slide block, and 32 be door, and 33 be lift adjustment knob.
Embodiment：
Embodiment 1：The distal end pointing instrumentation of femoral interlocking nail 24 as shown in Figure 1 includes the hold assembly being connected with immobilization carrier
1, carrier can be sick bed guardrail either instrument fixing rack or other be fixed on the part of ground or metope.1 kind of hold assembly
Class is various, 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, longitudinal translation mechanism is provided with elevating translational mechanism, is arranged with two transverse translations in parallel in longitudinal translation mechanism
Mechanism.Specifically, fixed cover is set on hold assembly 1, is matched in fixed cover and be set with column, installation is vertical in column upper end
Set, set side right angle setting vertical pole locking pin is indulged, Matching installation has the vertical pole of longitudinal translation mechanism in vertical set；Pacify on vertical pole
Equipped with horizontal set, horizontal set side wall is vertically installed with cross bar locking pin, and the cross bar for being set with laterial translation mechanism is matched in horizontal set.
Positioned at the end of two laterial translation mechanisms（The end of i.e. two parallel cross bars）Closing piece 11, Mei Gesuo is installed respectively
Block 11 is provided with vertical hole, and each side wall of closing piece 11 is vertically installed with connecting bar locking pin 13.
Universal joint in Fig. 1 4. includes universal drive shaft interior spheroid 15 and interior spheroid locking pin 16, and both are set in together in matching,
Interior spheroid locking pin 16 is vertically installed with the side of universal drive shaft interior spheroid 15, connecting rod is fixed with the outer spherical shell 14 of the universal drive shaft
12, the Matching installation of connecting rod 12 is fixed in the vertical hole of corresponding closing piece 11 by connecting bar locking pin 13 to connecting rod 12.
Universal drive shaft interior spheroid 15 is provided through the axis hole at its center, runs through in the interior spheroid axis hole of left and right universal joint
A piece adjusting rod 17 is installed.Two heart and parallel footpath holes therethrough are provided with adjusting rod 17, between the hole of two footpaths
Distance be equal to the distance between inner two parallel holes of lock screw 19 of intramedullary nail 24, be separately installed with lock in each footpath hole
Determine screw 19.
Referring to Fig. 1, regulation section is provided with and horizontal with reference to bar 26 in the exposed junction of intramedullary nail 24, referring to 5. shown in Fig. 1,
It is horizontal parallel with the inner two parallel holes of lock screw 19 of intramedullary nail 24 with reference to bar 26.
Embodiment 2：Referring to 2. shown in Fig. 1, on the basis of embodiment 1, set in one end of adjusting rod 17 or both ends
There is a free plumbing bar 20, the axis of free plumbing bar 20 is vertical with the axis in two footpath hole.
Embodiment 3：Referring to 3. shown in Fig. 1, on the basis of embodiment 1, it is provided with the middle part of elevating translational mechanism perpendicular
Rotating shaft and vertical transfer set, both are set in together, and are vertically connected with the vertical transfer shaft locking to vertical transfer shaft locking in vertical transfer set side wall
Pin.
Embodiment 4：Referring to 1. shown in Fig. 1, on the basis of embodiment 1, lift adjustment machine is that column is fixed on into clamping
On part 1, the perpendicular set for being capable of lifting carriage is set with the upside of column and column locking pin is installed, be provided with perpendicular set vertical
Set, set side right angle setting vertical pole locking pin is indulged, Matching installation has the vertical pole of longitudinal translation mechanism in vertical set；Pacify on vertical pole
Equipped with horizontal set, horizontal set side wall is vertically installed with cross bar locking pin, and the cross bar for being set with laterial translation mechanism is matched in horizontal set.
Embodiment 5：It is shown in Figure 2, on the basis of embodiment 1, and positioned at the end of two laterial translation mechanisms point
Closing piece is not installed, each closing piece is provided with vertical hole, and each closing piece side wall is vertically installed with connecting bar locking pin；Outside the universal drive shaft
Connecting rod is fixed with spherical shell, connecting rod Matching installation is fixed in the vertical hole of corresponding closing piece by connecting bar locking pin to connecting rod.
Embodiment 6：It is shown in Figure 3, on the basis of embodiment 1, and adjusting set is being fixed with positioned at column upper end, adjusted
The both sides of set are respectively arranged with vertical dovetail chute, and the vertical pole is the vertical pole of two independent symmetricals, the inner of two independent vertical poles
Vertical dovetail slide block is set respectively, and vertical dovetail slide block Matching installation is in corresponding vertical dovetail chute.
Embodiment 7：It is shown in Figure 4, on the basis of embodiment 1, the column 3 is arranged to two parallel columns,
So as to there is two independent three-dimensional governor motions on same base.
Embodiment 8：The distal end method of sight of femoral interlocking nail 24, comprises the following steps.
The outer end of intramedullary nail 24 is adjusted first horizontal reference bar 26 is set, make its keep level, the level is with reference to bar 26 and marrow
The interior inner two parallel holes of lock screw 19 of nail 24 are parallel.
Secondly, using a three-dimensional adjustable shelf being fixed on carrier, three-dimensional adjustable shelf can be found in the regulation shown in Fig. 1
Valency.The end of the three-dimensional adjustable shelf is provided with left and right two universal joints, and the free end of left and right two universal joints is respectively arranged with
Axis hole, an adjusting rod 17 is installed in two axis holes, two heart and parallel footpath holes therethrough are provided with adjusting rod 17.
Then, by setting X-ray transmission to observe intramedullary nail 24 in femur respectively in the horizontal plane and vertical plane of femur
Angle, then adjust three-dimensional adjustable shelf and make to be in close to the parallel position of intramedullary nail 24 in parallel and femur positioned at adjusting rod 17, then divide
Not adjusting left and right two universal joints makes adjusting rod 17 and the keeping parallelism of intramedullary nail 24 and sustained height in femur.
Finally, adjusting rod 17 and intramedullary nail 24 are rotated respectively, make two footpaths hole on adjusting rod 17 and intramedullary nail 24
The inner hole keep level alignment of two lock screws 19, lock screw 19 is provided with into each footpath hole and enters corresponding lock
Determine in the hole of screw 19.
Embodiment 9：On the basis of embodiment 8, the method for keeping two footpath hole horizontals on adjusting rod 17 is in adjusting rod
17 end set has a free plumbing bar 20, and the axis of free plumbing bar 20 is vertical with the axis in two footpath hole.
Embodiment 10：On the basis of embodiment 8, adjusting intramedullary nail in femur makes the side of two screw hole keep levels
Method can also be that the exposed junction in the intramedullary nail is fixed with handle 27, shown in Figure 1.Locator card is provided with handle 27
Groove 29, is provided with the level meter 28 that can flexibly dismantle in locating groove 29, and inner two of level meter 28 and intramedullary nail is parallel
Screw hole is parallel.
Claims (8)
1. a kind of femoral interlocking nail distal end pointing instrumentation, including the hold assembly being connected with immobilization carrier, on hold assembly
Elevating translational mechanism is provided with, longitudinal translation mechanism is provided with elevating translational mechanism, it is parallel in longitudinal translation mechanism to set
Two laterial translation mechanisms are equipped with, it is characterized in that：Universal joint is respectively arranged with positioned at the end of two laterial translation mechanisms；It is described
Universal joint includes universal drive shaft interior spheroid and interior spheroid locking pin, and both are set in together, hung down in universal drive shaft interior spheroid side in matching
Interior spheroid locking pin directly is installed, the universal drive shaft interior spheroid is provided through the axis hole at its center, in the left and right universal joint
Interior spheroid axis hole in through being provided with an adjusting rod, two heart and parallel footpaths therethrough are provided with adjusting rod
The distance between hole, two footpaths hole is equal to the distance between inner two parallel screw holes of intramedullary nail, in each footpath hole
It is separately installed with lock screw.
2. femoral interlocking nail distal end according to claim 1 pointing instrumentation, it is characterized in that：Positioned at two laterial translation mechanisms
Closing piece is installed in end respectively, and each closing piece is provided with vertical hole, and each closing piece side wall is vertically installed with connecting bar locking pin；Described ten thousand
It is fixed with connecting rod on spherical shell to outside axle, connecting rod Matching installation is in the vertical hole of corresponding closing piece, by connecting bar locking pin to connecting rod
It is fixed.
3. femoral interlocking nail distal end according to claim 1 pointing instrumentation, it is characterized in that：Regulation is fixed with positioned at column upper end
Set, the both sides of adjusting set are respectively arranged with vertical dovetail chute, and the vertical pole is the vertical pole of two independent symmetricals, two independent vertical poles
The inner vertical dovetail slide block is set respectively, vertical dovetail slide block Matching installation is in corresponding vertical dovetail chute.
4. femoral interlocking nail distal end according to claim 1 pointing instrumentation, it is characterized in that：In two horizontal sets on longeron
On be respectively arranged with vertical dovetail chute, the inner of the cross bar sets vertical dovetail slide block, vertical dovetail slide block matching respectively
In vertical dovetail chute corresponding to being installed on.
5. the femoral interlocking nail distal end pointing instrumentation according to claim any one of 1-4, it is characterized in that：In the adjusting rod
One end is provided at both ends with free plumbing bar, and the axis of free plumbing bar is vertical with the axis in two footpath hole.
6. femoral interlocking nail distal end according to claim 1 pointing instrumentation, it is characterized in that：Set in the exposed junction of the intramedullary nail
It is equipped with horizontal parallel with reference to bar, the horizontal inner two parallel screw holes of reference bar and intramedullary nail；Or in the marrow
The exposed junction of nail is fixed with handle, and locating groove is provided with handle, the water that can flexibly dismantle is provided with locating groove
Level, level meter are parallel with the inner two parallel screw holes of intramedullary nail.
7. femoral interlocking nail distal end according to claim 1 pointing instrumentation, it is characterized in that：In the rising tune section telephone-moving structure
Portion is provided with vertical transfer axle and vertical transfer set, and both are set in together, and is vertically connected with vertical transfer set side wall to vertical transfer shaft locking
Vertical transfer shaft locking pin；Or the lift adjustment machine is that fixed cover is set on hold assembly, matches and be set with fixed cover
Column, vertical set is installed in column upper end, indulges set side right angle setting vertical pole locking pin, Matching installation has longitudinal translation in vertical set
The vertical pole of mechanism；Horizontal set is installed on vertical pole, horizontal set side wall is vertically installed with cross bar locking pin, is matched in horizontal set and be set with horizontal stroke
To the cross bar of translation mechanism.
8. femoral interlocking nail distal end according to claim 1 pointing instrumentation, it is characterized in that：The lift adjustment machine is by column
It is fixed on hold assembly, the perpendicular set for being capable of lifting carriage is set with the upside of column and column locking pin is installed, on perpendicular set
Vertical set is provided with, indulges set side right angle setting vertical pole locking pin, Matching installation has the vertical pole of longitudinal translation mechanism in vertical set；
Horizontal set is installed, horizontal set side wall is vertically installed with cross bar locking pin, is matched in horizontal set and be set with laterial translation mechanism on vertical pole
Cross bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721554045.9U CN207055542U (en) | 2017-11-20 | 2017-11-20 | Femoral interlocking nail distal end pointing instrumentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721554045.9U CN207055542U (en) | 2017-11-20 | 2017-11-20 | Femoral interlocking nail distal end pointing instrumentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207055542U true CN207055542U (en) | 2018-03-02 |
Family
ID=61514649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721554045.9U Expired - Fee Related CN207055542U (en) | 2017-11-20 | 2017-11-20 | Femoral interlocking nail distal end pointing instrumentation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207055542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009399A (en) * | 2018-06-20 | 2018-12-18 | 陈聚伍 | Fracture of neck of femur hollow nail accurate-location device |
-
2017
- 2017-11-20 CN CN201721554045.9U patent/CN207055542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009399A (en) * | 2018-06-20 | 2018-12-18 | 陈聚伍 | Fracture of neck of femur hollow nail accurate-location device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20201120 |