CN220109815U

CN220109815U - Vertebroplasty puncture positioning device

Info

Publication number: CN220109815U
Application number: CN202321031877.8U
Authority: CN
Inventors: 李国栋; 卓斯敏; 甘秀天; 盘景伟; 何恩谋; 杨龙; 李泉
Original assignee: Wuzhou Red Cross Hospital
Current assignee: Wuzhou Red Cross Hospital
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-12-01
Anticipated expiration: 2033-05-04

Abstract

The utility model discloses a puncture positioning device for vertebroplasty, which comprises a support frame, a horizontal correcting mechanism, a level gauge and an angle adjusting mechanism, wherein the angle adjusting mechanism is arranged on the support frame through the horizontal correcting mechanism; the supporting frame can be adjusted in a lifting way; the angle adjusting mechanism comprises a telescopic arm, an X-axis rotation adjusting assembly, a Y-axis rotation adjusting assembly and a puncture catheter; the bottom of the telescopic arm is rotationally connected with the top of the horizontal correction mechanism; the level gauge is arranged at one end of the telescopic arm, and the other end of the telescopic arm is connected with one end of the X-axis rotation adjusting component; one end of the Y-axis rotation adjusting component is connected with the other end of the X-axis rotation adjusting component, and the Y-axis rotation adjusting component rotates along the X-axis through the X-axis rotation adjusting component; the puncture catheter is mounted on the Y-axis rotation adjustment assembly and rotates along the Y-axis. The utility model can puncture at the angle parameter regulated by a certain puncture needle point, so that the puncture needle reaches the target area of the vertebral body, thereby meeting the requirement of individual operation.

Description

Vertebroplasty puncture positioning device

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a puncture positioning device for vertebroplasty.

Background

With the entry of China into the aging society, the incidence rate of osteoporosis increases rapidly. Percutaneous Vertebroplasty (PVP) refers to a minimally invasive spinal surgical technique that involves percutaneous injection of bone cement into the vertebral body through or outside the pedicle to achieve increased vertebral body strength and stability, prevent collapse, relieve pain, and even partially restore vertebral body height. Percutaneous bone cement vertebroplasty has been used for about 30 years to treat spinal disorders, and this technique has been widely used to treat spinal osteoporosis or tumors, etc. The key and difficult technology of PVP operation is to locate puncture, especially against rotating and side bending vertebral bodies with serious deformity. Good puncture path can obtain ideal bone cement dispersion, reduce the injury of operation puncture pair and bone cement leakage. Thus, how to precisely penetrate to the target area within the vertebral body is critical to the success of the procedure. Often, the operation beginner does not have good stereoscopic imagination capability and clinical puncture operation experience, puncture is repeatedly adjusted for multiple times, so that operation time is prolonged, operation pain of a patient is increased, X-ray contact quantity of the patient and an operator is correspondingly increased, and even leakage in a lung, a blood vessel, a spinal cord or bone cement vertebral canal is damaged due to poor puncture path, so that serious operation complications are generated. Even experienced spinal surgeons have difficulty in successfully completing ideal puncture once, the position of the puncture needle is mostly determined by the hand feeling and repeated puncture perspective of a perspective machine, the puncture requirement is high, the learning curve is relatively long, the repeated perspective has great influence on patients and operators, particularly for thoracic vertebra patients, the puncture is slightly deviated, the complications easily occur, and great loss is caused to both doctors and patients. Chinese patent CN200620024102.8 discloses a vertebroplasty puncture positioning guide, chinese patent CN202221932137.7 discloses a vertebroplasty three-dimensional guide. These puncture positioning devices typically determine the specific fracture portion by measuring X-rays, CT, etc. to obtain data before the operation, and measure specific angle parameters, and the puncture needle is placed into the fracture site with the angle parameters in the operation with the assistance of the positioning device in adjusting the angle. However, most of the puncture positioning devices at present have limited angle adjustment functions as in the above-mentioned patent, the device is not simple and convenient to use, the pre-operation parameter measurement is complex, the angle measured before the operation and the adjustment angle error during the operation are large, and the requirement of accurate puncture cannot be met, so that a new vertebroplasty puncture positioning device is designed to solve the problem of puncture angle positioning, and the puncture operation is simple, convenient, quick and accurate.

Disclosure of Invention

The utility model provides a puncture positioning device for vertebroplasty, which can realize puncture in any angle direction of a certain puncture point through rotation adjustment of two dimensions of an X-axis rotation adjustment assembly and a Y-axis rotation adjustment assembly, and the device is matched with a leveling function, so that the accuracy of angle adjustment is improved.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the vertebroplasty puncture positioning device comprises a support frame, a horizontal correcting mechanism, a level gauge and an angle adjusting mechanism, wherein the angle adjusting mechanism is arranged on the support frame through the horizontal correcting mechanism, and the horizontal correcting mechanism is used for adjusting the horizontal state of the angle adjusting mechanism; the supporting frame can be adjusted in a lifting manner; the angle adjusting mechanism comprises a telescopic arm, an X-axis rotation adjusting assembly, a Y-axis rotation adjusting assembly and a puncture catheter; the bottom of the telescopic arm is rotationally connected with the top of the horizontal correction mechanism; the level gauge is arranged at one end of the telescopic arm, and the other end of the telescopic arm is connected with one end of the X-axis rotation adjusting component; one end of the Y-axis rotation adjusting component is connected with the other end of the X-axis rotation adjusting component, and the Y-axis rotation adjusting component rotates along the X-axis through the X-axis rotation adjusting component; the puncture catheter is arranged on the Y-axis rotation adjusting assembly and rotates along the Y axis; the puncture catheter is provided with a positioning hole along the axial direction.

Further, the X-axis rotation adjusting assembly comprises an angle dial and a rotating shaft, wherein the angle dial is fixedly connected to the end part of the telescopic arm, and one end of the rotating shaft is fixedly connected to the center of the angle dial; the other end of the rotating shaft is fixedly connected with the Y-axis rotation adjusting component, and the Y-axis rotation adjusting component rotates along the center of the angle dial through the rotating shaft.

Further, the Y-axis rotation adjusting assembly comprises an arc-shaped rotating frame and two mounting sliding blocks; the arc-shaped rotating frame is provided with a through avoidance groove from the top, and the puncture catheter is arranged in the avoidance groove; arc-shaped sliding grooves with the positions corresponding to each other are formed in two sides of the avoidance groove, the two arc-shaped sliding grooves penetrate through each other, the top and the bottom of each installation sliding block are all arc surfaces with the same radian as the arc-shaped sliding grooves, the thickness of each installation sliding block is matched with that of each arc-shaped sliding groove, one installation sliding block is matched and embedded in one arc-shaped sliding groove and is fixedly connected with one side of the puncture catheter, and the other installation sliding block is embedded in the other arc-shaped sliding groove and is fixedly connected with the other side of the puncture catheter; the puncture guide pipe rotates and moves along the corresponding arc-shaped sliding grooves through the two mounting sliding blocks, and the axial direction of the puncture guide pipe always faces between the circle centers of the two arc-shaped sliding grooves; the two sides of the arc-shaped rotating frame are provided with angle scale marks corresponding to the positions of each arc-shaped sliding groove.

Further, two end parts of the arc-shaped rotating frame extend towards the horizontal direction, and one end part of the arc-shaped rotating frame is fixedly connected with one end of the rotating shaft.

Further, two sides of the puncture catheter are both plane surfaces, and the distance between the two plane surfaces is the same as the width of the avoidance groove; the puncture catheter is characterized in that square holes are formed in two sides of the puncture catheter, which are attached to the avoidance grooves, one end of each installation sliding block outwards extends to form a connecting part matched with each square hole, and the connecting part is embedded in the corresponding square hole to fix the direction of the puncture catheter.

Further, the horizontal correction mechanism comprises an upper supporting plate, a lower supporting plate, four spherical joints and four adjusting nuts, and the bottom of the telescopic arm is fixedly connected with the top of the upper supporting plate; the bottom of the lower supporting plate is fixedly connected with the supporting frame; one end of each spherical joint is fixedly connected with four corners of the bottom of the upper supporting plate in a one-to-one correspondence manner; the four adjusting nuts are in one-to-one correspondence with the positions of the four spherical joints, and each adjusting nut is rotationally connected with the lower supporting plate; the other end of each spherical joint is provided with a screw rod, and each spherical joint is in threaded connection with a corresponding adjusting nut.

Further, the support frame comprises a lifting arm and a fixed base, the top of the lifting arm is fixedly connected with the bottom of the lower support plate, the bottom of the lifting arm is fixedly connected with the top of the fixed base, and the horizontal correction mechanism is in lifting sliding connection with the fixed base through the lifting arm; one side of the lifting arm is provided with an adjusting knob, and the adjusting knob is used for adjusting the lifting height of the lifting arm.

Further, the fixed base is provided with a sliding groove with a C-shaped structure, and the sliding groove is used for being in sliding connection with a guide rail at one side of the operating table; the bottom of the fixed base is connected with a fixed knob in a threaded manner, and one end of the fixed knob extends into the sliding groove to be abutted to a guide rail on one side of the operating table.

The beneficial effects of the utility model are as follows:

1) According to the utility model, the telescopic direction of the telescopic arm is taken as the X-axis direction, the vertical direction is taken as the Z-axis direction, the direction perpendicular to the telescopic arm on the same horizontal plane is taken as the Y-axis direction, the X-axis rotation adjusting component carries out rotation adjustment on the axis of the telescopic arm 41 so as to adjust the angle orientation of the Y-axis rotation adjusting component, the puncture catheter carries out rotation adjustment along the Y-axis direction through the Y-axis rotation adjusting component, and the puncture catheter can realize puncture in any angle direction of a certain puncture point through the rotation adjustment of the X-axis rotation adjusting component and the Y-axis rotation adjusting component.

2) The angle scale can assist in identifying the angle position of the Y-axis rotation adjusting assembly along the rotation of the telescopic arm, and the angle scale mark on the arc-shaped rotating frame can assist in identifying the angle position of the puncture catheter on the Y-axis rotation adjusting assembly, so that the angle adjustment is finer and more accurate.

3) The height position of the lifting arm in the Z-axis direction can be adjusted, the fixed base can adjust the position of the lifting arm in the Y-axis direction through the sliding groove and the sliding rail of the operating table, the telescopic arm can adjust the position of the lifting arm in the X-axis direction, and then the positioning of the puncture point is assisted, and then the puncture azimuth angle is adjusted through the X-axis rotation adjusting assembly and the Y-axis rotation adjusting assembly.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a physical diagram of the present utility model;

FIG. 2 is a schematic diagram of a side view of the present utility model;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is a schematic view of the structure of the present utility model when installed in an operating table;

the attached drawings are identified:

1-supporting frame, 2-horizontal correcting mechanism, 3-level, 4-angle adjusting mechanism, 41-telescopic arm, 42-X axis rotation adjusting component, 43-Y axis rotation adjusting component, 44-puncture catheter, 421-angle dial, 422-rotation axis, 431-arc rotating frame, 432-installation slider, 4311-avoidance groove, 4312-arc chute, 4313-angle scale mark, 21-upper supporting plate, 22-lower supporting plate, 23-spherical joint, 24-adjusting nut, 11 lifting arm, 12-fixed base.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present, as well as being disposed not only in an intermediate position but also in both ends as far as they are within the scope defined by the intermediate position. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a vertebroplasty puncture positioning device comprises a support frame 1, a horizontal correcting mechanism 2, a level meter 3 and an angle adjusting mechanism 4, wherein the angle adjusting mechanism 4 is installed on the support frame 1 through the horizontal correcting mechanism 2, and the horizontal correcting mechanism 2 is used for adjusting the horizontal state of the angle adjusting mechanism 4; the supporting frame 1 can be adjusted in a lifting manner; the angle adjusting mechanism 4 comprises a telescopic arm 41, an X-axis rotation adjusting assembly 42, a Y-axis rotation adjusting assembly 43 and a puncture catheter 44; the bottom of the telescopic arm 41 is rotatably connected with the top of the horizontal correction mechanism 2; the level gauge 3 is arranged at one end of the telescopic arm 41, and the other end of the telescopic arm 41 is connected with one end of the X-axis rotation adjusting component 42; one end of the Y-axis rotation adjusting component 43 is connected with the other end of the X-axis rotation adjusting component 42, and the Y-axis rotation adjusting component 43 rotates along the X-axis through the X-axis rotation adjusting component 42; the puncture catheter 44 is mounted on the Y-axis rotation adjustment assembly 43 and rotates along the Y-axis; the puncture catheter 44 is provided with a positioning hole along the axial direction. Specifically, support frame 1 is used for fixing in operation table one side and support frame 1 can be along the side removal regulation of operation table, support frame 1 is with whole device jack-up, angle adjustment mechanism 4's one end extends to the top of patient puncture point, the height position of puncture is convenient for be adjusted in the lift regulation, spirit level 3 is used for judging angle adjustment mechanism 4's horizontality, angle adjustment mechanism 3's horizontal direction is adjusted to level correction mechanism 2, can make angle adjustment mechanism 3 be in relative horizontally state through the cooperation between them, angle of measurement before the reduction art and the angle of regulation error when using in the art, in order to improve the accuracy of follow-up puncture angle adjustment. The angle adjusting mechanism 4 takes the extending and contracting direction of the telescopic arm 41 as the X-axis direction, takes the vertical direction as the Z-axis direction, takes the direction vertical to the telescopic arm 41 on the same horizontal plane as the Y-axis direction, the telescopic arm can extend or shorten along the X-axis direction to adjust the position, the X-axis rotation adjusting component 42 carries out rotation adjustment by the axis of the telescopic arm 41, the angle orientation of the Y-axis rotation adjusting component 43 is adjusted, and the puncture catheter 44 carries out rotation adjustment along the Y-axis direction by the Y-axis rotation adjusting component 43. The utility model needs to obtain data by measuring X-ray, CT and the like before operation to determine a specific puncture target area of fracture, designs an ideal puncture path and a needle insertion point of skin, measures specific angle parameters, namely a head inclination angle and an abduction angle of puncture based on the puncture path, then carries out lifting, translation and rotation adjustment by a device to determine the position of the needle insertion point, and finally carries out rotation adjustment of two dimensions of an X-axis rotation adjustment assembly 42 and a Y-axis rotation adjustment assembly 43, so that puncture can be carried out in any angle direction of a certain puncture point, and the device has a leveling function and improves the accuracy of angle adjustment.

The X-axis rotation adjusting assembly 42 includes an angle dial 421 and a rotation shaft 422, the angle dial 421 is fixedly connected to an end of the telescopic arm 41, and one end of the rotation shaft 422 is fixedly connected to a center of the angle dial 421; the other end of the rotating shaft 422 is fixedly connected with the Y-axis rotation adjusting assembly 43, and the Y-axis rotation adjusting assembly 43 rotates along the center of the angle dial 421 through the rotating shaft 422. The Y-axis rotation adjusting assembly 43 comprises an arc-shaped rotating frame 431 and two mounting sliding blocks 432; the arc-shaped rotating frame 431 is provided with a through avoidance groove 4311 from the top, and the puncture catheter 44 is arranged in the avoidance groove 4311; the two sides of the avoidance groove 4311 are provided with arc-shaped sliding grooves 4312 with corresponding positions, the two arc-shaped sliding grooves 4312 penetrate through, the top and the bottom of each mounting sliding block 432 are provided with arc surfaces with the same radian as the arc-shaped sliding grooves 4312, the thickness of each mounting sliding block 432 is matched with that of each arc-shaped sliding groove 4312, one mounting sliding block 432 is matched and embedded in one arc-shaped sliding groove 4312 and is fixedly connected with one side of the puncture catheter 44, and the other mounting sliding block 432 is embedded in the other arc-shaped sliding groove 4312 and is fixedly connected with the other side of the puncture catheter 44; the puncture catheter 44 is rotationally moved along the corresponding arc-shaped sliding grooves 4312 through the two mounting sliding blocks 432, and the axial direction of the puncture catheter 44 always faces between the circle centers of the two arc-shaped sliding grooves 4312; the arc-shaped rotating frame 431 is provided with angle scale marks 4313 at positions corresponding to the arc-shaped sliding grooves 4312. The arc-shaped rotation, 431 has two ends extending horizontally, one of which is fixedly connected to one end of the rotation shaft 422. Specifically, the rotating shaft 422 is a component rotationally connected through a shaft hole, which is disclosed in the prior art and is not described herein; the angle dial 421 is shaped like a cake, a precise angle scale is engraved on one side connected with the arc rotary frame 431, an indication mark is arranged at one end of the corresponding arc rotary frame 431, the arc rotary frame 431 is rotatably adjusted along the rotating shaft, the rotation angle is judged by observing the position of the indication mark corresponding to the angle dial 421, a damping material such as a rubber ring can be added at the joint between the rotating shaft 422 and the arc rotary frame 431 for positioning after rotation, or a fixing bolt in threaded connection is additionally arranged on the arc rotary frame 431, and one end of the fixing bolt penetrates through the arc rotary frame 431 and is abutted against the rotating shaft 422 to achieve a fixing effect. The connection between the telescopic arm and the horizontal correcting mechanism 2 can also be made in the manner described above. The arc chute 4312 on the arc rotary frame 431 is symmetrically arranged along the central line of the vertical direction, the puncture guide tube 44 rotates along the arc chute 4312 along the circle center of the arc, and the puncture direction is always aligned to the circle center position while the rotation angle is adjusted. The angle dial 421 can assist in identifying the angular position of the Y-axis rotation adjusting assembly 43 along the telescopic arm 41, and the angle scale mark 4313 on the arc-shaped rotating frame 431 can assist in identifying the angular position of the puncture catheter 44 on the Y-axis rotation adjusting assembly 43, so that the angular adjustment is finer and more accurate.

Both sides of the puncture catheter 44 are plane, and the distance between the two planes is the same as the width of the avoidance groove 4311; two sides of the puncture catheter 44, which are attached to the avoidance groove 4311, are respectively provided with a square hole, one end of each mounting slider 432 extends outwards to form a connecting part matched with the square hole, and the connecting part is embedded in the corresponding square hole to fix the orientation of the puncture catheter 44. Specifically, the two opposite sides of the puncture catheter 44 are cut into planes parallel to each other, so that the puncture catheter can be embedded in the avoidance groove 4311, and the mounting sliding block 432 is embedded from the corresponding arc-shaped sliding groove 4312 and inserted into the square hole of the puncture catheter 44, so that the puncture catheter 4 can not change direction during movable adjustment, and is always aligned between the circle centers of the two arc-shaped sliding grooves 4312. The mounting slide block 432 and the puncture catheter 44 can be fixed by bonding or by bolts, when the puncture catheter 44 is fixed by bolts, the center of the square holes corresponding to the planes of the two sides of the puncture catheter 44 is provided with a threaded hole, the mounting slide block 432 is correspondingly provided with a through hole, and the bolts penetrate through the through hole and are in threaded connection with the puncture catheter 44 so as to clamp the mounting slide block 432. The side of the mounting slide 432 remote from the puncture catheter 44 extends outwardly to form a movable handle for facilitating angular adjustment.

The horizontal correction mechanism 2 comprises an upper supporting plate 21, a lower supporting plate 22, four spherical joints 23 and four adjusting nuts 24, and the bottom of the telescopic arm 41 is fixedly connected with the top of the upper supporting plate 21; the bottom of the lower supporting plate 22 is fixedly connected with the supporting frame 1; one ends of the four spherical joints 23 are fixedly connected with four corners of the bottom of the upper supporting plate 22 in a one-to-one correspondence manner; the four adjusting nuts 24 are in one-to-one correspondence with the positions of the four spherical joints 23, and each adjusting nut 24 is rotatably connected with the lower support plate 22; the other end of each spherical joint 23 is provided with a screw rod, and each spherical joint 23 is in threaded connection with a corresponding adjusting nut 24. Specifically, the four corners of the upper support plate 21 are provided with threaded holes corresponding to the positions of each spherical joint 3, one end of the spherical joint 23 is fixedly connected with the upper support plate 21 in a threaded manner, and the other end of the spherical joint 23 is connected with the adjusting nut 24 in a threaded manner. The lower support plate 22 is provided with a through hole corresponding to each adjusting nut 24, the upper part of the adjusting nut 24 is a rotary part provided with anti-slip lines, the middle part is of a smooth tubular structure, the lower part is of a tubular structure provided with external threads, wherein the middle part of the adjusting nut is embedded in the through hole and can rotate along the through hole, and the lower part is in threaded connection with a fixing nut to install the adjusting nut 24 on the lower support plate 22. The spherical joint 23 corresponding to telescopic adjustment can be adjusted by rotating the adjusting nut 24, so that the distance between four corners of the upper supporting plate 21 and the lower supporting plate 22 is adjusted, the horizontal state of the upper supporting plate 21 is adjusted, and the angle adjusting error during operation is reduced.

The support frame 1 comprises a lifting arm 11 and a fixed base 12, the top of the lifting arm 11 is fixedly connected with the bottom of the lower support plate 22, the bottom of the lifting arm 11 is fixedly connected with the top of the fixed base 12, and the horizontal correction mechanism 2 is in lifting sliding connection with the fixed base 12 through the lifting arm 11; an adjusting knob is arranged on one side of the lifting arm 11 and is used for adjusting the lifting height of the lifting arm 11. The fixed base 12 is provided with a C-shaped chute, the side edge of the operating table is usually provided with a guide rail for mounting various medical instruments, and the chute is used for being in sliding connection with the guide rail at one side of the operating table; for further fixation, a fixing knob is screwed to the bottom of the fixing base 12, and one end of the fixing knob extends into the sliding groove to abut against a guide rail on one side of the operating table, and the sliding rail is clamped by the fixing knob. In this embodiment, the lifting arm 11 is used for adjusting the height position in the Z-axis direction, the fixed base 12 adjusts the position in the Y-axis direction through the sliding groove and the operating table sliding rail, the telescopic arm 41 is used for adjusting the position in the X-axis direction, and further assists in positioning the puncture point, and then the puncture azimuth angle is adjusted through the X-axis rotation adjusting assembly 42 and the Y-axis rotation adjusting assembly 43.

To reduce the projection generated after X-ray and CT transmission, the telescoping arm 41, the X-axis rotation adjustment assembly 42, the Y-axis rotation adjustment assembly 43, and the puncture catheter 44 may all preferably be made of a low density plastic material, such as PP material.

Referring to fig. 4, the steps of the present utility model are as follows:

1) Before operation, determining a specific puncture target area of fracture by measuring data such as X-ray, CT and the like, designing an ideal puncture path and a needle insertion point of skin, and measuring specific angle parameters, namely 2 parameters of a puncture head inclination angle and an abduction angle, based on the puncture path;

2) The device is arranged on one side of the operating table and is adjusted to a proper position by being connected with a guide rail on one side of the operating table through a fixed base 12;

3) The four adjusting nuts 24 of the horizontal correcting mechanism 2 are rotated to adjust the telescopic arms to a horizontal state, so that the error between the angle parameters adjusted by the device and the pre-operation measured parameters is minimum;

4) The puncture catheter is further positioned above the skin needle insertion point through the telescopic adjustment of the telescopic arm, the rotary adjustment of the telescopic arm and the horizontal correction mechanism 2 and the height adjustment of the lifting arm 11; the azimuth angle of the puncture catheter, namely the aforementioned 2 parameters of the head inclination angle and the abduction angle, is adjusted by the X-axis rotation adjusting component 42 and the Y-axis rotation adjusting component 43.

5) The puncture needle is placed into the fracture part along with the orientation angle of the puncture catheter.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present utility model should be covered in the scope of the technical solution of the present utility model.

Claims

1. The vertebroplasty puncture positioning device is characterized by comprising a support frame, a horizontal correcting mechanism, a level gauge and an angle adjusting mechanism, wherein the angle adjusting mechanism is arranged on the support frame through the horizontal correcting mechanism, and the horizontal correcting mechanism is used for adjusting the horizontal state of the angle adjusting mechanism; the supporting frame can be adjusted in a lifting manner; the angle adjusting mechanism comprises a telescopic arm, an X-axis rotation adjusting assembly, a Y-axis rotation adjusting assembly and a puncture catheter; the bottom of the telescopic arm is rotationally connected with the top of the horizontal correction mechanism; the level gauge is arranged at one end of the telescopic arm, and the other end of the telescopic arm is connected with one end of the X-axis rotation adjusting component; one end of the Y-axis rotation adjusting component is connected with the other end of the X-axis rotation adjusting component, and the Y-axis rotation adjusting component rotates along the X-axis through the X-axis rotation adjusting component; the puncture catheter is arranged on the Y-axis rotation adjusting assembly and rotates along the Y axis; the puncture catheter is provided with a positioning hole along the axial direction.

2. The vertebroplasty puncture positioning device of claim 1, wherein the X-axis rotation adjustment assembly comprises an angle dial fixedly connected to an end of the telescoping arm and a rotation shaft having one end fixedly connected to a center of the angle dial; the other end of the rotating shaft is fixedly connected with the Y-axis rotation adjusting component, and the Y-axis rotation adjusting component rotates along the center of the angle dial through the rotating shaft.

3. The vertebroplasty puncture positioning device of claim 2, wherein the Y-axis rotation adjustment assembly comprises an arcuate swivel mount and two mounting blocks; the arc-shaped rotating frame is provided with a through avoidance groove from the top, and the puncture catheter is arranged in the avoidance groove; arc-shaped sliding grooves with the positions corresponding to each other are formed in two sides of the avoidance groove, the two arc-shaped sliding grooves penetrate through each other, the top and the bottom of each installation sliding block are all arc surfaces with the same radian as the arc-shaped sliding grooves, the thickness of each installation sliding block is matched with that of each arc-shaped sliding groove, one installation sliding block is matched and embedded in one arc-shaped sliding groove and is fixedly connected with one side of the puncture catheter, and the other installation sliding block is embedded in the other arc-shaped sliding groove and is fixedly connected with the other side of the puncture catheter; the puncture guide pipe rotates and moves along the corresponding arc-shaped sliding grooves through the two mounting sliding blocks, and the axial direction of the puncture guide pipe always faces between the circle centers of the two arc-shaped sliding grooves; the two sides of the arc-shaped rotating frame are provided with angle scale marks corresponding to the positions of each arc-shaped sliding groove.

4. A vertebroplasty puncture positioning device as set forth in claim 3, wherein the arc-shaped rotating frame has both ends extending in a horizontal direction, one end being fixedly connected to one end of the rotating shaft.

5. A vertebroplasty puncture positioning device as set forth in claim 3, wherein both sides of the puncture catheter are plane surfaces, and the distance between the two plane surfaces is the same as the width of the avoidance groove; the puncture catheter is characterized in that square holes are formed in two sides of the puncture catheter, which are attached to the avoidance grooves, one end of each installation sliding block outwards extends to form a connecting part matched with each square hole, and the connecting part is embedded in the corresponding square hole to fix the direction of the puncture catheter.

6. The vertebroplasty puncture positioning device of claim 1, wherein the horizontal correction mechanism comprises an upper support plate, a lower support plate, four spherical joints and four adjusting nuts, and the bottom of the telescopic arm is fixedly connected with the top of the upper support plate; the bottom of the lower supporting plate is fixedly connected with the supporting frame; one end of each spherical joint is fixedly connected with four corners of the bottom of the upper supporting plate in a one-to-one correspondence manner; the four adjusting nuts are in one-to-one correspondence with the positions of the four spherical joints, and each adjusting nut is rotationally connected with the lower supporting plate; the other end of each spherical joint is provided with a screw rod, and each spherical joint is in threaded connection with a corresponding adjusting nut.

7. The vertebroplasty puncture positioning device of claim 6, wherein the support comprises a lifting arm and a fixed base, the top of the lifting arm is fixedly connected with the bottom of the lower support plate, the bottom of the lifting arm is fixedly connected with the top of the fixed base, and the horizontal correction mechanism is in lifting sliding connection with the fixed base through the lifting arm; one side of the lifting arm is provided with an adjusting knob, and the adjusting knob is used for adjusting the lifting height of the lifting arm.

8. The vertebroplasty puncture positioning device of claim 7, wherein the fixed base is provided with a chute with a C-shaped structure, and the chute is used for being slidingly connected with a guide rail at one side of an operating table; the bottom of the fixed base is connected with a fixed knob in a threaded manner, and one end of the fixed knob extends into the sliding groove to be abutted to a guide rail on one side of the operating table.