CN215739365U

CN215739365U - Novel pedicle screw positioning device

Info

Publication number: CN215739365U
Application number: CN202023240379.3U
Authority: CN
Inventors: 赵清华
Original assignee: Nanjing People's Hospital Of Luhe
Current assignee: Nanjing People's Hospital Of Luhe
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-02-08
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a novel pedicle screw positioning device in the technical field of positioning devices, which comprises a shell and an inner core, wherein prismatic structures are fixedly connected to two sides of the shell, a first fixed block is fixedly connected to the side edge inside the shell, a rotating shaft is rotatably connected to the first fixed block, a worm is fixedly connected to the rotating shaft, the worm is meshed with a worm wheel, the worm wheel is rotatably connected with the inside of the shell, a round shaft is fixedly connected to the center of the worm wheel, the other end of the round shaft is rotatably connected with the inside of the shell, the inner core is slidably connected to the round shaft, one end of an electric telescopic rod is fixedly connected to the right side of the inner core, the other end of the electric telescopic rod is fixedly connected with the worm wheel, a second fixed block is fixedly connected to the inside of the inner core, a connecting shaft is rotatably connected to the upper end of the second fixed block, a puncture channel is fixedly connected to the upper end of the connecting shaft, and a first window is arranged on the upper end of the inner core, the operation of the doctor is convenient, and the success and the practicability of the operation are improved.

Description

Novel pedicle screw positioning device

Technical Field

The utility model relates to the technical field of positioning devices, in particular to a novel pedicle screw positioning device.

Background

At present, the direction of screw feeding in the spinal pedicle channel screw internal fixation operation is determined, after the position of a screw feeding point is determined, an operator generally uses a ground plane as reference, and estimates the direction of a channel opener after the angle adjustment of two planes according to a pitching inclination angle and a inwards inclination angle measured by preoperative data by experience and feeling, and the angle is used as the direction of the screw feeding.

However, due to the fact that two variables for controlling the nail feeding direction of the pitching inclination angle and the inwards inclination angle exist at the same time, the nail feeding direction cannot be accurately determined due to the fact that the determination of the pitching inclination angle and the inwards inclination angle both depend on the subjective judgment of a doctor.

Based on the above, the utility model designs a novel pedicle screw positioning device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides the following technical solutions:

a novel pedicle screw positioning device comprises an outer shell and an inner core, wherein prismatic structures are fixedly connected with two sides of the outer shell, a first fixed block is fixedly connected with the side edge inside the shell, a rotating shaft is rotatably connected on the first fixed block, the rotating shaft is fixedly connected with a worm, the worm is meshed with a worm wheel, the worm wheel is rotatably connected with the inside of the shell, a round shaft is fixedly connected at the center of the worm wheel, the other end of the round shaft is rotatably connected with the inside of the shell, the round shaft is connected with an inner core in a sliding way, the right side of the inner core is fixedly connected with one end of an electric telescopic rod, the other end of the electric telescopic rod is fixedly connected with a worm wheel, a second fixing block is fixedly connected inside the inner core, the upper end of the second fixing block is rotatably connected with a connecting shaft, the upper end of the connecting shaft is fixedly connected with a puncture channel, and the upper end of the inner core is provided with a window.

As a further scheme of the utility model, the rotating shaft is rotatably connected with the shell, and the upper end of the rotating shaft is fixedly connected with a rocker. During operation, the rotating shaft is driven to rotate by rotating the rocker, the worm fixedly connected with the rotating shaft is enabled to rotate, the worm drives the worm wheel to rotate, the round shaft fixedly connected with the worm wheel is enabled to rotate, and the inner core fixedly connected with the round shaft can be driven to rotate by rotating the round shaft.

As a further scheme of the utility model, the upper end of the connecting shaft is provided with a first angle scale which is fixedly connected with the inner core. When the device works, when the connecting shaft rotates, the puncture channel fixedly connected to the connecting shaft is driven to rotate, the rotating angle can be read on the corresponding first angle scale, and the inward-inclining angle can be conveniently measured.

As a further scheme of the utility model, marked lines are fixedly connected to two sides of the first window, a second window is arranged at the upper end of the shell, and second angle scales are fixedly connected to two sides of the first window. During operation, the marking lines fixedly connected to the inner core rotate together through the rotating connection of the inner core, the marking lines have degrees under the second-order angle scales, and the pitching angle can be conveniently measured.

As a further scheme of the utility model, a sliding plate is fixedly connected to the side edge of the second fixed block, a baffle plate is fixedly connected to the upper end of the sliding plate, a telescopic rod is fixedly connected to the upper end of the baffle plate, a snap ring is fixedly connected to the telescopic rod, the snap ring is slidably connected to a connecting shaft, a sliding groove is formed in the outer side of the inner core, a sliding rod is slidably connected to the sliding groove, one end of the sliding rod is fixedly connected to the snap ring, a spring is directly and fixedly connected to the baffle plate and the snap ring, the other end of the sliding rod is fixedly connected to a sliding block, and the sliding block slides on the outer side of the inner core. During operation, when measuring the inclination, through sliding the slider, drive fixed connection's buckle and connecting axle on the slide bar and break away from, when measuring the inclination, through loosening the slider, the spring resumes deformation, drives fixed connection's buckle and removes on the telescopic link, makes the buckle with the connecting axle chucking, makes the connecting axle fixed, has improved measuring precision.

As a further scheme of the utility model, the scale marks, the marked lines and the port at the bottom end of the puncture channel are made of metal materials. When in work, the scale marks, the marked lines and the port at the bottom end of the puncture channel can be developed under CT fluoroscopy, the rest parts are made of non-metallic materials, the development is not carried out under the CT fluoroscopy, the specific angle is convenient to observe, the accuracy is improved,

advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

1. through the worm wheel, the worm, the apparatus further comprises a rotating shaft, a fixed block, the rocker, electric telescopic handle, the cooperation of inner core and circle axle is used, through rotating the rocker, it rotates to drive the pivot, make fixed connection's worm rotate in the pivot, the worm drives the worm wheel and rotates, make fixed connection's circle axle rotate on the worm wheel, rotation through the circle axle, can drive the epaxial fixed connection's of circle inner core and rotate, make fixed connection's on the inner core rotation together, make the marking correspond No. two angular scale, through starting electric telescopic handle, it can also control in the messenger to move about the circle is epaxial, can make things convenient for the precision measurement to the every single move inclination, the practicality is provided.

2. Through No. two fixed blocks, the connecting axle, a number angle scale, the slide, the baffle, the telescopic link, a spring, the buckle, the cooperation of slide bar and spout is used, when measuring the inclination, through sliding block, fixed connection's buckle breaks away from with the connecting axle on the drive slide bar, when measuring the inclination, puncture channel becomes an angle on a number angle scale, through loosening the slider, the spring resumes deformation, fixed connection's buckle removes on the drive telescopic link, make the buckle with the connecting axle chucking, it is fixed to make the connecting axle, the measuring precision has been improved, and the practicality is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 3 is a front cross-sectional view of the housing of the present invention;

FIG. 4 is a side cross-sectional view of the inner core of the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 4 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a shell 1, an inner core 2, a prismatic structure 3, a first fixed block 4, a rotating shaft 5, a worm 6, a worm wheel 7, a circular shaft 8, an electric telescopic rod 9, a second fixed block 10, a connecting shaft 11, a puncture channel 12, a first window 13, a rocker 14, a first angle scale 15, a marked line 16, a second window 17, a second angle scale 18, a sliding plate 19, a baffle 20, a telescopic rod 21, a snap ring 22, a sliding chute 23, a sliding rod 24, a sliding block 25 and a spring 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a novel nail positioner is put to pedicle of vertebral arch, including shell 1 and

inner core

2, 1 both sides fixedly connected with prismatic structure 3 of shell, fixed block 4 of 1 inside side fixedly connected with of shell, it is connected with pivot 5 to rotate on fixed block 4, fixed connection worm 6 on the pivot 5, worm 6 and worm wheel 7 intermeshing, worm wheel 7 is connected with 1 inside rotation of shell, 7 central fixedly connected with circle axles of worm wheel 8, the circle axle 8 other end is connected with 1 inside rotation of shell, sliding connection has inner core 2 on the

circle axle

8, 9 one end of 2 right sides fixedly connected with electric telescopic handle of inner core, the 9 other ends of electric telescopic handle and 7 fixed connection of worm wheel, No. two fixed blocks 10 of 2 inside fixedly connected with of inner core, No. two fixed block 10 upper ends are rotated and are connected with connecting

axle

11, 11 upper end fixedly connected with puncture passageway 12 of connecting axle, No. one window 13 has been seted up to inner core 2 upper ends.

As an embodiment of the utility model, the rotating shaft 5 is rotatably connected with the shell 1, and the upper end of the rotating shaft 5 is fixedly connected with a rocker 14. During operation, the rotating shaft 5 is driven to rotate by rotating the rocker 14, the worm 6 fixedly connected with the rotating shaft 5 is driven to rotate, the worm 6 drives the worm wheel 7 to rotate, the round shaft 8 fixedly connected with the worm wheel 7 rotates, and the inner core 2 fixedly connected with the round shaft 8 can be driven to rotate by rotating the round shaft 8.

As an embodiment of the utility model, the upper end of the connecting shaft 11 is provided with a first angle scale 15, and the first angle scale 15 is fixedly connected with the inner core 2. When the device works, when the connecting shaft 11 rotates, the puncture channel 12 fixedly connected to the connecting shaft 11 is driven to rotate, and the rotating angle can be read on the corresponding first angle scale 15, so that the device is convenient to measure the inward-inclining angle.

According to one embodiment of the utility model, marked lines 16 are fixedly connected to two sides of the first window 13, a second window 17 is arranged at the upper end of the shell 1, and second angle scales 18 are fixedly connected to two sides of the first window 13. During operation, the marking 16 fixedly connected with the inner core 2 rotates together through the rotating connection of the inner core 2, so that the marking 16 has degrees under the second-degree scale 18, and the pitching angle can be conveniently measured.

As an embodiment of the utility model, a sliding plate 19 is fixedly connected to the side edge of the second fixing block 10, a baffle plate 20 is fixedly connected to the upper end of the sliding plate 19, an expansion link 21 is fixedly connected to the upper end of the baffle plate 20, a snap ring 22 is fixedly connected to the expansion link 21, the snap ring 22 is slidably connected with the connecting shaft 11, a sliding groove 23 is formed in the outer side of the inner core 2, a sliding rod 24 is slidably connected to the sliding groove 23, one end of the sliding rod 24 is fixedly connected with the snap ring 22, a spring 26 is directly and fixedly connected to the baffle plate 20 and the snap ring 22, the other end of the sliding rod 24 is fixedly connected with a sliding block 25, and the sliding block 25 slides on the outer side of the inner core 2. During operation, when the inclination angle is measured, the sliding block 25 is slid to drive the buckle fixedly connected with the sliding rod 24 to be separated from the connecting shaft 11, and when the inclination angle is measured, the sliding block 25 is loosened to restore the deformation of the spring 26 to drive the buckle fixedly connected with the telescopic rod 21 to move, so that the buckle clamps the connecting shaft 11, the connecting shaft 11 is fixed, and the measuring precision is improved.

In one embodiment of the present invention, the graduation marks, the mark 16 and the bottom end port of the puncture channel 12 are made of metal. When in use, the scale marks, the marked lines 16 and the ports at the bottom end of the puncture channel 12 can be developed under CT fluoroscopy, the rest parts are made of non-metallic materials, the development is not carried out under the CT fluoroscopy, the specific angle can be conveniently observed, the accuracy is improved,

one specific application of this embodiment is:

when the utility model is used, the rotating shaft 5 is driven to rotate by rotating the rocker 14, the worm 6 fixedly connected with the rotating shaft 5 is driven to rotate, the worm 6 drives the worm wheel 7 to rotate, the round shaft 8 fixedly connected with the worm wheel 7 is driven to rotate, the inner core 2 fixedly connected with the round shaft 8 can be driven to rotate by the rotation of the round shaft 8, the marking 16 fixedly connected with the inner core 2 rotates together, the marking 16 corresponds to two-number-angle scales 18, the inward direction can also move left and right on the round shaft 8 by starting the electric telescopic rod 9, when the inward inclination angle is measured, the buckle fixedly connected with the sliding rod 24 is driven to be separated from the connecting shaft 11 by the sliding slider 25, when the inward inclination angle is measured, the puncture channel 12 forms an angle on the one-number-angle scale 15, the connecting shaft 11 is clamped by loosening the slider 25, the spring 26 recovers deformation, the buckle fixedly connected with the telescopic rod 21 is driven to move, and the buckle 11 is driven, the utility model can accurately measure and position the pitching inclination angle and the inner inclination angle, is convenient for the operation of a doctor of a main knife, and improves the success and the practicability of the operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a novel nail location is put to pedicle of vertebral arch device, includes shell (1) and inner core (2), its characterized in that: the improved electric heating wire rod is characterized in that prismatic structures (3) are fixedly connected to two sides of the shell (1), a first fixing block (4) is fixedly connected to the inner side of the shell (1), a rotating shaft (5) is connected to the first fixing block (4) in a rotating mode, a worm (6) is fixedly connected to the rotating shaft (5), the worm (6) is meshed with a worm wheel (7), the worm wheel (7) is connected with the shell (1) in an internal rotating mode, a round shaft (8) is fixedly connected to the center of the worm wheel (7), the other end of the round shaft (8) is connected with the shell (1) in an internal rotating mode, an inner core (2) is connected to the round shaft (8) in a sliding mode, one end of an electric telescopic rod (9) is fixedly connected to the right side of the inner core (2), the other end of the electric telescopic rod (9) is fixedly connected with the worm wheel (7), and a second fixing block (10) is fixedly connected to the inner core (2), no. two fixed block (10) upper end is rotated and is connected with connecting axle (11), connecting axle (11) upper end fixedly connected with puncture passageway (12), a window (13) has been seted up to inner core (2) upper end.

2. The novel pedicle screw positioning device as claimed in claim 1, wherein: the rotating shaft (5) is rotatably connected with the shell (1), and a rocker (14) is fixedly connected to the upper end of the rotating shaft (5).

3. The novel pedicle screw positioning device as claimed in claim 1, wherein: the upper end of the connecting shaft (11) is provided with a number angle scale (15), and the number angle scale (15) is fixedly connected with the inner core (2).

4. The novel pedicle screw positioning device as claimed in claim 1, wherein: the window comprises a first window (13), marking lines (16) fixedly connected to two sides of the first window (13), a second window (17) arranged at the upper end of the shell (1), and second angle scales (18) fixedly connected to two sides of the first window (13).

5. The novel pedicle screw positioning device as claimed in claim 1, wherein: no. two fixed block (10) side fixedly connected with slide (19), slide (19) upper end fixedly connected with baffle (20), baffle (20) upper end fixedly connected with telescopic link (21), fixedly connected with snap ring (22) on telescopic link (21), snap ring (22) and connecting axle (11) sliding connection, spout (23) have been seted up in the inner core (2) outside, sliding connection has slide bar (24) on spout (23), slide bar (24) one end and snap ring (22) fixed connection, baffle (20) and snap ring (22) direct fixedly connected with spring (26), the slide bar (24) other end and slider (25) fixed connection, slider (25) slide in the inner core (2) outside.

6. The novel pedicle screw positioning device as claimed in claim 1, wherein: the scale marks, the marked lines (16) and the port at the bottom end of the puncture channel (12) are made of metal materials.