Disposable needle biopsy device and needle structure of cutting biopsy apparatus
A biopsy device, disposable technology, applied in trocars, inoculation, ovulation diagnosis, medical science, etc., can solve the problems that the inner needle can not be stopped in the middle, low efficiency, dangerous, etc.
Inactive Publication Date: 2019-11-05
FLOWER MEDICAL CO LTD
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Problems solved by technology
[0010] These structures have a common forward-firing type, and due to the characteristics of the forward-firing operating mechanism, negative pressure is applied after the inner needle reaches the tissue, so the efficiency is low
In addition, when there is an error in the predicted aiming distance, the firing of the inner needle cannot be stopped in the middle, resulting in a fatal danger
Method used
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[0081] As the disclosure allows for variations and many embodiments, specific embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present disclosure to a specific mode of practice, and it should be understood that all changes, equivalents and substitutions that do not depart from the spirit and technical scope of the present disclosure are included in the present disclosure. The same reference numerals denote the same elements throughout the drawings. In the drawings, the dimensions of structures are exaggerated for clarity of the disclosure.
[0082] Terms such as "first" and "second" are used herein only to describe various constituent elements, but the constituent elements are not limited by these terms. These terms are used only for the purpose of distinguishing one constituent element from another. For example, a first constituent element may be referred to as a second constituent...
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An embodiment of the present invention discloses a disposable cutting biopsy device comprising: a housing which is formed in a tubular shape and has a sliding space formed inside thereof; a needle setwhich is disposed inside the housing through a hole on the front portion of the housing and comprises an inner needle and an outer needle, wherein the inner needle has a tissue extraction groove forextracting tissue, and the outer needle has a blade on the front end thereof so as to cut tissue received in the tissue extraction groove and is formed to cover up the inner needle so as to reciprocate on the outer circumference of the needle; a sliding block which is connected to the outer needle and is disposed to reciprocate forward and backward within the sliding space; a loading unit which isconnected to the sliding block so as to launch the sliding block; and a loading handle which is disposed to be connected to the loading unit. When the sliding block moves backwards, a first negativepressure space is formed at the front portion of the sliding space, and when the sliding bock moves forwards, a second negative pressure space is formed at the rear portion of the sliding space.
Description
technical field [0001] One embodiment of the present disclosure relates to a disposable needle biopsy device, and more particularly, to a disposable needle biopsy device capable of extracting a tissue sample by cutting a target biological tissue. Another embodiment of the present disclosure relates to a biological tissue biopsy device, and more specifically, to a new structure and shape of an inner needle and an outer needle of a biological tissue biopsy device, which extracts a biological tissue through the following operations: Allowing a biopsy needle comprising an inner needle and an outer needle to approach biological tissue by controlling a main body; accommodating a biological tissue sample in a tissue extraction recess of the inner needle as the operator manipulates the movement of the outer needle; cutting the accommodating sample from the biological tissue and sealing The tissue extraction recess of the inner needle extracts biological tissue. Background technique ...
Claims
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IPC IPC(8): A61B10/02
CPCA61B10/02A61B10/0275A61B2017/0023A61B17/32A61B2017/320064
Inventor 高炯进
Owner FLOWER MEDICAL CO LTD