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Sheath tube assembly and minimally invasive puncture instrument kit for DRG injection

A technology of a syringe and a sheath tube is applied in the field of sheath tube components and minimally invasive puncture instrument kits to achieve the effect of good stability

Active Publication Date: 2020-09-22
THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the embodiment of the present application, a minimally invasive puncture instrument kit for DRG injection is provided to help solve the problem that DRG injection can only be performed through open surgery in the prior art

Method used

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  • Sheath tube assembly and minimally invasive puncture instrument kit for DRG injection
  • Sheath tube assembly and minimally invasive puncture instrument kit for DRG injection
  • Sheath tube assembly and minimally invasive puncture instrument kit for DRG injection

Examples

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Embodiment 1

[0037] figure 2 A schematic structural view of a puncture needle provided in the embodiment of the present application, such as figure 2 As shown, the puncture needle 200 includes a puncture sheath 202 and a needle core 201, and the minimally invasive puncture instrument set also includes a guide wire 301, and the guide wire 301 is used to replace the needle after the puncture needle 200 is punctured. The core 201 is left in the puncture channel to guide the subsequent tubular device, such as image 3 shown.

[0038] In an optional embodiment, the bone drill is a hollow trephine 401, Figure 4 A schematic diagram of the structure of a hollow trephine cooperating with a wire guide tube provided in the embodiment of the present application, as shown in Figure 4 As shown, the hollow trephine 401 is used to sheath the outside of the guide wire 301 to drill holes in the spinal lamina.

[0039] Since the front end of the hollow trepanation drill 401 is provided with a sharp t...

Embodiment 2

[0054] The difference between the second embodiment of the present application and the first embodiment is that the hollow trephine 401 in the first embodiment is replaced by a grinding drill 403 . Figure 8 A schematic structural diagram of the cooperation between a drill and a guide wire provided in the embodiment of the present application, as shown in Figure 8 As shown, the burr 403 is also hollow, and the guide wire 301 can pass through the burr 403 to guide the burr 403 to a designated position.

[0055] It should be pointed out that the trephine drill bit 402 is relatively sharp and may damage the DRG easily. The drill bit 404 is a frosted bit, and the drill bit 403 is safer than the hollow trephine 401 . In addition, in order to further improve safety, the burr bit 404 is configured such that the grinding effect on the side of the burr bit 404 is greater than that on the front of the burr bit 404 .

[0056] The other parts of the second embodiment are the same as th...

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Abstract

The embodiment of the invention discloses a minimally invasive puncture instrument kit for DRG injection. A sheath tube assembly comprises an outer sheath tube and an inner sheath tube, and the innersheath tube is used for being embedded into the outer sheath tube, so that a needle head of an injector performs injection through a through hole of the inner sheath tube. By adopting the scheme provided by the embodiment of the invention, in the sheath tube assembly, an inner diameter of the inner sheath tube is relatively small, so that the needle head can be ensured to have relatively good stability.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a sheath assembly and a minimally invasive puncture instrument set for DRG injection. Background technique [0002] Pain is a persistent disease that plagues human beings. It was listed as the fifth vital sign by the World Health Organization in 2000, and 73% of people will experience severe pain in their lifetime. The most common types of neuropathic pain are discogenic pain and pain after nerve injury. Clinically, there are as many as 159 etiologies for low back pain alone. With the advent of aging and the increasing number of vehicles, neuropathic pain caused by spinal degeneration and injury is increasing. Due to the complexity of the etiology, the difficulty in defining the diagnostic criteria, the inaccurate treatment methods, and the serious phenomenon of misdiagnosis and mistreatment, it is difficult to obtain Early, effective, and standardized diagnosi...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61B17/16
CPCA61B17/34A61B17/16A61B17/3472A61B17/1671Y02A50/30
Inventor 沈娜娜相宏飞徐浩于宏伟陈伯华吴晓淋郭柱王岩
Owner THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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