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Drill bit with multi-layer sandwich structure

A sandwich structure and drill bit technology, which is applied in medical science, surgery, etc., can solve problems such as lack of detection functions, single function of the drill bit, damage, etc.

Pending Publication Date: 2021-05-14
迈德微创(天津)医疗器械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Drills are commonly used tools in the field of mechanical manufacturing. However, the current drills on the market have a single structure and only have the function of drilling holes. In some practices, drills are often required to have other specific functions, such as: during spinal surgery, pedicle When drilling, in order to prevent the drill from accidentally drilling into the spinal canal and causing damage to the spinal cord, it is necessary for the drill bit to be able to drill the hole and at the same time have the ability to detect the biological impedance of the tissue at the front end of the drill bit. Chinese utility model patent (patent number: ZL201921438098.3) Describes a device for quickly detecting the biological impedance of human tissue, that is, after applying a voltage to the front-end first electrode and the second electrode through an active circuit, to measure the electrical impedance between the first electrode and the second electrode, and then Playing a Probing Role in Spine Surgery
[0003] Therefore, in order to solve the problem that the current drill bit has a single function and does not have functions such as detection, a drill bit with a multi-layer sandwich structure has been invented. Each layer of the multi-layer sandwich structure can be made of different materials, so that the drill bit has More functions, such as: the gap between the two layers at the front of the drill bit can be used as a measurement electrode for active circuits

Method used

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Examples

Experimental program
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Effect test

Embodiment approach 1

[0018] Embodiment 1: The 3-layer sandwich structure of the preferred embodiment of the present invention.

[0019] as attached figure 1 As shown: the number of layers of the multi-layer sandwich structure is 3 layers, that is, the drill bit metal layer (4), the drill bit insulating layer (5), and the drill bit metal layer (6) respectively from outside to inside.

Embodiment approach 2

[0020] Embodiment 2: The length from the front end of the drill bit to the end of the drill bit tail is 15 cm, and the diameter of the drill bit is 3.2 mm.

[0021] as attached figure 1 with 2 Shown: a drill bit with a multilayer sandwich structure, including a drill bit (1), a drill rod (2), and a drill tail (3), the front end of the drill bit with a multilayer sandwich structure is a drill bit (1) , the drill bit (1) continues to be a drill bit rod (2), and the drill bit rod (2) continues to be a drill bit tail (3), and each layer of the described multi-layer sandwich structure is continued from the drill bit (1) to Drill tail (3).

Embodiment approach 3

[0022] Embodiment 3: The length from the front end of the drill bit to the end of the drill bit tail is 8 cm, and the diameter of the drill bit is 3.2 mm.

[0023] as attached figure 1 with 3 Shown: a drill bit with a multilayer sandwich structure, including a drill bit (1), a drill rod (2), and a drill tail (3), the front end of the drill bit with a multilayer sandwich structure is a drill bit (1) , the drill bit (1) continues to be a drill bit rod (2), and the drill bit rod (2) continues to be a drill bit tail (3), and each layer of the described multi-layer sandwich structure is continued from the drill bit (1) to Drill tail (3).

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Abstract

The invention discloses a drill bit with a multi-layer sandwich structure, which comprises a drill bit, a drill bit rod and a drill bit tail. The drill bit with the multi-layer sandwich structure is of the multi-layer sandwich structure, and each layer of the multi-layer sandwich structure can be made of different materials, so that the drill bit has more use functions; for example, the space between two spaced layers at the front end of the drill bit can serve as double poles of an active circuit.

Description

technical field [0001] The invention relates to a drill bit, in particular to a drill bit with a multi-layer sandwich structure, which belongs to the field of machinery manufacturing and medical instruments. Background technique [0002] Drills are commonly used tools in the field of mechanical manufacturing. However, the current drills on the market have a single structure and only have the function of drilling holes. In some practices, drills are often required to have other specific functions, such as: during spinal surgery, pedicle When drilling, in order to prevent the drill from accidentally drilling into the spinal canal and causing damage to the spinal cord, it is necessary for the drill to be able to drill the hole and at the same time have the ability to detect the biological impedance of the tissue at the front of the drill. Chinese utility model patent (patent number: ZL201921438098.3) A device for quickly detecting the biological impedance of human tissue is des...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/1615A61B17/1659A61B17/1671A61B2017/00026
Inventor 王逸仙马维宁殷清林
Owner 迈德微创(天津)医疗器械有限责任公司