Three-dimensional micro spike and method of manufacturing the same

Abstract

A micro spike having a three-dimensional structure made of single crystalline silicon and being capable of picking an enough amount of a tissue to examine the tissue while minimizing an examinee's pain with a minimal invasion when picking the tissue and a method of manufacturing the same are disclosed. The micro spike comprising: a main body part; extension parts inserted into a tissue when picking the tissue sample and integratedly extended from upper and lower parts of one side of the main body part; and a protrusion part integratedly protruded from at least one of side surfaces of the extension parts and inserted into the tissue to pick the tissue sample together with the extension parts when picking the living tissue sample.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the invention [0002] The present invention relates to a micro spike which is a biopsy tool used to pick a tissue, and more particularly to a micro spike having a three-dimensional structure made of a single crystalline silicon and being capable of picking an enough amount of a tissue to examine the tissue while minimizing an examinee's pain with a minimal invasion when picking the tissue, and a method of manufacturing the same. [0003] 2. Description of the Prior Art [0004] In the medical area, biopsy tools are essential in preparing tissue samples for pathological tests. However, since a conventional biopsy tool according to the prior art has a relatively big size, an amount of the extracted tissue samples is unnecessarily much and it causes significant discomfort, risk, and injury to the patients. However, since a biopsy tool according to the prior art has a relatively big size, an amount of a tissue picked is unnecessarily much when p...

AI Technical Summary

Benefits of technology

[0016] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art. The object of the present invention is to provide a micro spike capable of picking an enough amount of a tissue to examine it through a simple process of inserting and extracting the device into and from the tissue and minimizing a patient's pain with a minimal invasion when picking the tissue.

[0017] Another object of the invention is to provide a method of manufacturing a micro spike having a firm structure with ease by applying a sacrificial bulk micromachining (SBM) processing method to a single crystalline silicon substrate.

Problems solved by technology

However, since a conventional biopsy tool according to the prior art has a relatively big size, an amount of the extracted tissue samples is unnecessarily much and it causes significant discomfort, risk, and injury to the patients.

However, since a biopsy tool according to the prior art has a relatively big size, an amount of a tissue picked is unnecessarily much when picking the tissue.

In addition, it is required many amounts of reagents to analyze the sampled tissue and the patient should endure pain and risk resulting from the medical treatment.

However, since most of the micro biopsy tools or precision cutting devices having a small size have a complex structure, it is difficult to manipulate the device when performing the biopsy and thus a skillful operator is required.

In addition, there is an inconvenience that a movement of forceps jaws 202 should be manipulated to separate the tissue under state that the tissue is stretched with the micro needle 204.

In other words, since the prior catheter is disposable, it is not desirable from a point of view of an efficient use of resources.

According to this method, it is difficult to bond the substrates and there is much possibility of the structure to be transformed due to stress between the two substrates.

This method has a disadvantage such that it is difficult to obtain equipment capable of exposing the ion beam since the equipment is very expensive.

In addition, since the three-dimensional structure made according to the LIGA process is hard to plate a photoresist structure after the exposure, it is impossible to make the molding box.

Further, since the biopsy devise of the three-dimensional structure consisting of the photoresist material only has very low durability, it is impossible to virtually use it for the biopsy.

Since the laser micro machining method processes an arbitrary shape in a manner of scanning the shape with the laser so as to make the shape, it takes much time to manufacture it.

In addition, since a manufacturing cost is high, there is a difficulty in the mass-production.

As described above, according to the prior methods of manufacturing the micro device, there are many difficulties such as a complex manufacturing process, a requirement of expensive manufacturing equipment, and a low durability of the micro device.

Images