Bone marrow biopsy needle

A biopsy needle and bone marrow technology, applied in the field of bone marrow biopsy needles, can solve the problems of falling bone marrow, inconvenient access to bone marrow, inconvenient cleaning of bone marrow needles, etc., and achieves the effects of being convenient to hold, preventing bone marrow falling, and improving the feeling of use.

Pending Publication Date: 2020-06-30
THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bone marrow biopsy needle to solve the problem that the drill bit of the existing bone marrow needle mentioned in the background technology cannot seal the bone marrow in the needle, and in the process of taking out the biopsy needle, the bone marrow will drop from time to time. And the removed bone marrow is not easy to take, and the bone marrow needle is not easy to clean.

Method used

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  • Bone marrow biopsy needle
  • Bone marrow biopsy needle
  • Bone marrow biopsy needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A bone marrow biopsy needle, comprising a puncture needle 1, a bone marrow collector 2, a fixed handle 3 and a locking mechanism 4, the puncture needle 1 is set at one end of the bone marrow collector 2, integrally formed with the bone marrow collector 2, and fixedly connected The bone marrow collector 2 is set in a cylindrical shape, and the cylindrical shape can ensure the stable movement of the internal bone marrow sealing cylinder, and the bone marrow sealing cylinder can accurately seal the bone marrow collection port to prevent the bone marrow from falling out; The fixed handle 3 is set at the end of the bone marrow harvester 2 away from the puncture needle 1, and is fixedly connected with the bone marrow harvester 2, such as welding or integrally formed. In addition, the design of the handle is such that when the locking mechanism is operated, it is stressed The direction is always in the axial direction of the bone marrow harvester, so that the puncture needle wi...

Embodiment 2

[0032] Such as figure 1 As shown, the puncture needle 1, the bone marrow collector 2, the fixed handle 3 and the locking mechanism 4 are all made of medical grade stainless steel.

[0033] By adopting the above technical scheme, no adverse phenomenon will occur after the bone marrow needle contacts the human body.

[0034] All the other are identical with embodiment 1.

Embodiment 3

[0036] The open end of the bone marrow collection cylinder is a scraper 411, which is convenient for scraping away the tissue adhered to the inner wall of the cylinder when taking the bone marrow.

[0037] All the other are identical with embodiment 1-2.

[0038] Working principle: When taking bone marrow, first turn the adjustment handle so that the opening and the bone marrow collection port are misaligned by 180°, close the bone marrow collection port, and then perform bone puncture on the patient through the puncture needle 1. After entering the patient's bone, hold the Fix the handle 3, and then turn the adjusting handle 45 by 180° so that the opening is aligned with the bone marrow collection port. At this time, turn the entire biopsy needle clockwise or counterclockwise to cut the bone marrow with the blade, and at the same time, the cut bone marrow passes through the bone marrow collection port and the opening. Fall into the collection tube; then turn the adjustment ha...

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Abstract

The invention relates to the technical field of medical instruments, particularly to a bone marrow biopsy needle. The bone marrow biopsy needle comprises a puncture needle, a bone marrow collector, afixed handle and a locking mechanism, wherein the puncture needle is arranged at one end of the bone marrow collector, and is integrally formed and fixedly connected with the bone marrow collector; the bone marrow collector is set in a cylindrical shape; the fixed handle is arranged at the end, away from the puncture needle, of the bone marrow collector and connected with the bone marrow collector; and the locking mechanism is arranged in the bone marrow collector and in threaded connection with the fixed handle. By arrangement of the locking mechanism, an opening can be opened only during bone marrow taking and closed after bone marrow taking, so that the condition of falling of bone marrow is completely eradicated.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a bone marrow biopsy needle. Background technique [0002] Bone marrow biopsy is to use a special puncture needle to take a small piece of bone marrow tissue about 0.5-1 cm in size for medical examination. Bone biopsy can not only understand the composition of bone marrow cells and the distribution of primitive cells, but also observe the cell morphology, which is convenient for pathological diagnosis. The diagnosis of myeloma, lymphoma, bone marrow metastases, etc. is of great significance. In addition, it has diagnostic significance for bone marrow necrosis and bone marrow fatty change. [0003] There are two main types of bone marrow biopsy needles currently used clinically: one is a needle head composed of three claws, which are relatively soft and will fold to one side during use; the other is a rotating drill, but this drill cannot seal the inside of the needle. ...

Claims

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Application Information

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IPC IPC(8): A61B10/02
CPCA61B10/025A61B2010/0258
Inventor 史雪于俊敏孙玲洁崔中光
Owner THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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