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Controllable curvature vertebroplasty device, assembly and method thereof

A vertebroplasty and assembly technology, applied in the field of medical devices, can solve the problems of strict puncture angle requirements, obstructed penetration, and high labor intensity of medical personnel.

Active Publication Date: 2021-02-09
ENEIDE MEDICAL TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) Due to the relationship between the puncture angle, it is difficult for the surgical instruments of conventional percutaneous vertebroplasty / percutaneous kyphoplasty to pass through the midline of the vertebral body. Symmetry of body height
However, this will not only cause the patient’s injury at least twice as much as that of unilateral puncture, but also increase the labor intensity of medical staff, and the patient and medical staff will receive radiation for a long time. Of course, more surgical instruments are needed for bilateral puncture, and the medical cost is also high. will be higher
[0004] 2) When performing puncture, although percutaneous kyphoplasty is indeed more effective than percutaneous vertebroplasty in restoring the height of the vertebral body, the shape of the cavity is not controllable
[0006] 4) At the same time, the balloon objectively has the effect of compacting cancellous bone during the expansion process, resulting in the obstruction of the penetration of bone cement into the surrounding trabecular bone in the cavity formed by expansion

Method used

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  • Controllable curvature vertebroplasty device, assembly and method thereof
  • Controllable curvature vertebroplasty device, assembly and method thereof
  • Controllable curvature vertebroplasty device, assembly and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] The controllable bending vertebroplasty device of this embodiment is as Figure 1-2 as well as Figure 4-8 shown. The controllable curved vertebroplasty device includes a curved inner tube 1, a drill and a transmission device.

[0149] The curved inner tube 1 is a slender hollow tube, and the front end of the curved inner tube 1 is provided with a curved section 2, and one side of the curved section 2 is provided with a slot 19, and the slot 19 is V-shaped or U-shaped, etc. Oblique cuts are arranged at equal intervals. The front section of the curved inner tube 1 becomes a semi-flexible tube through cutting processing, and the rear section is a rigid tube.

[0150] The drill includes a drill bit 3 and a drill rod 12 , the drill rod 12 is placed in the cavity of the curved inner tube 1 , and the drill bit 3 is fixedly connected to the front end of the drill rod 12 . The drill bit 3 and the drill rod 12 are integral or integrally formed. The drill bit 3 is spherical, ...

Embodiment 2

[0157] Such as Figure 4 , 12 As shown in -15, the controllable bending vertebroplasty device assembly of this embodiment includes the controllable bending vertebroplasty device in embodiment 1, the puncture sleeve 6 and the bone cement filler 9.

[0158] The controllable curvature vertebroplasty method is as follows: Figure 12-15 Shown:

[0159] (a) Vertebral positioning;

[0160] (b) local anesthesia;

[0161] (c) Locate with the puncture cone, and then drill the vertebral body by hand;

[0162] (d) the puncture sleeve 6 enters the vertebral body;

[0163] (e) The controllable bending vertebroplasty device enters the vertebral body through the channel established by the puncture sleeve 6;

[0164] (f) operating a controllable curvature vertebroplasty to drill a curved channel in the vertebral body;

[0165] (g) The controllable bending vertebroplasty exits the vertebral body;

[0166] (h) The bone cement filler 9 enters the vertebral body channel through the punctur...

Embodiment 3

[0169] Such as Figure 4 , 9 -14 and 16-19, the controllable bending vertebroplasty device assembly of this embodiment includes the controllable bending vertebroplasty device, puncture sleeve 6, balloon catheter 8 and bone cement filler as in embodiment 1 9 , wherein the balloon catheter 8 can be guided into the curved channel by the guide wire 7 .

[0170] The controllable curvature vertebroplasty method is as follows: Figure 12-14 as well as Figure 16-19 Shown:

[0171] (a) Vertebral positioning;

[0172] (b) local anesthesia;

[0173] (c) Locate with the puncture cone, and then drill the vertebral body by hand;

[0174] (d) the puncture sleeve 6 enters the vertebral body;

[0175](e) The controllable bending vertebroplasty device enters the vertebral body through the channel established by the puncture sleeve 6;

[0176] (f) operating a controllable curvature vertebroplasty to drill a curved channel in the vertebral body;

[0177] (g) The controllable bending ver...

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PUM

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Abstract

A controllably bendable vertebroplasty device and a component and method thereof. The controllably bendable vertebroplasty device comprises: a bendable inner pipe (1), the bendable inner pipe (1) being an elongated hollow pipe, a bendable section (2) being provided at a front end of the bendable inner pipe (1), and a groove (19) being cut on a pipe surface on one side of the bendable section (2); a drill comprising a drill bit (3) and a drill rod (12), the drill rod (12) being placed in a cavity of the bendable inner pipe (1), and the drill bit (3) being fixedly connected to a front end of the drill rod (12); and a transmission means for propelling the bendable inner pipe (1), bending the bendable section (2) of the bendable inner pipe (1), and rotating the drill. The controllably bendable vertebroplasty device can be directed through the midline region of a vertebral body, and can improve the efficiency of unilateral puncture and reduce operation time, create a curved cavity and reduce damage to a cancellous bone, and reduce interdigitation between bone cement and a cancellous bone.

Description

technical field [0001] The invention relates to the field of medical devices, and more particularly relates to a controllable bending vertebroplasty device for drilling a hole in a vertebral body to establish a curved channel, as well as an assembly and a method thereof. Background technique [0002] The equipment or method for drilling holes in the vertebral body to create a curved channel in the prior art has the following problems: [0003] 1) Due to the relationship between the puncture angle, it is difficult for the surgical instruments of conventional percutaneous vertebroplasty / percutaneous kyphoplasty to pass through the midline of the vertebral body. Symmetry of body height. However, this will not only cause the patient’s injury at least twice as much as that of unilateral puncture, but also increase the labor intensity of medical staff, and the patient and medical staff will receive radiation for a long time. Of course, more surgical instruments are needed for bil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/16A61B17/88A61B17/34
CPCA61B17/1642A61B17/1671A61B17/3421A61B17/8805A61B2017/3445
Inventor 沈碧峰朱大伟付亮辉
Owner ENEIDE MEDICAL TECH SHANGHAI CO LTD