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Multi-functional bone marrow random inspection needle

A multifunctional, bone marrow technology, applied in the field of medical devices, can solve problems such as limiting the sampling efficiency of bone marrow biopsy, and achieve the effects of convenient disinfection and cleaning, convenient removal, and improved use feeling

Inactive Publication Date: 2020-05-15
王欣荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In clinical biopsy, bone marrow fluid sampling needles and bone marrow biopsy needles are generally used separately. When biopsy samples are taken separately, patients have to suffer from two punctures, and medical staff have to operate separately, which greatly limits bone marrow biopsy. Sampling efficiency of the technique

Method used

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  • Multi-functional bone marrow random inspection needle
  • Multi-functional bone marrow random inspection needle
  • Multi-functional bone marrow random inspection needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A multifunctional bone marrow sampling needle, such as figure 1 As shown, it includes a puncture needle 1, a bone marrow collector 2, a fixed handle 3 and a locking mechanism 4. The puncture needle 1 is arranged at one end of the bone marrow collector 2, and is sealed and clamped with the bone marrow collector 2 or connected by threads; The bone marrow collector 2 is set in a cylindrical shape, and the cylindrical shape can ensure the stable movement of the internal piston plate and the bone marrow sealing cylinder, and the bone marrow sealing cylinder can accurately seal the bone marrow collection port to prevent the sample from falling out. Purpose: The fixed handle 3 is set at the end of the bone marrow harvester 2 away from the puncture needle 1, and the fixed handle 3 is connected to the bone marrow harvester 2 through the reinforcement rod 5, and the connection method is clamping or screw connection; the inner diameter of the reinforcement rod 5 is the same as The...

Embodiment 2

[0042] Such as figure 2 As shown, the puncture needle 1 is set in a cone shape with a solid interior; one end of the puncture needle 1 is provided with an internal thread, and the puncture needle 1 is mated with the first external thread 23 through the internal thread. By adopting the above technical solution, the cone-shaped puncture needle 1 is convenient to enter during bone puncture, and the puncture needle 1 and the bone marrow collector 2 are set in a separate type. After the puncture needle 1 is unscrewed, it is convenient to disassemble, replace and clean.

[0043] Such as image 3 As shown, one end of the barrel 21 is provided with a first external thread 23 for connecting with a puncture needle.

[0044] Such as Figure 5 As shown, one end of the fixing cap 31 is provided with a second external thread 32 for connecting with the reinforcing rod.

[0045] The threads above are all threads in the same direction, that is, they are screwed in clockwise or counterclock...

Embodiment 3

[0047] 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. By adopting the above-mentioned technical scheme, no adverse phenomenon will occur after the bone marrow needle contacts the human body, and it is resistant to high temperature, and is convenient for later cleaning and disinfection.

[0048] All the other are identical with embodiment 1 or 2.

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Abstract

The invention relates to the technical field of medical apparatuses, in particular to a multi-functional bone marrow random inspection needle. The multi-functional bone marrow random inspection needlecomprises a puncture needle, a bone marrow collector, a fixed handle and a locking mechanism, wherein the puncture needle is arranged at one end of the bone marrow collector, and is in sealing and clamping connection or in threaded connection with the bone marrow collector; the bone marrow collector is cylindrical; the fixed handle is arranged at one end away from the puncture needle, of the bonemarrow collector; the fixed handle is connected with the bone marrow collector through a reinforcing rod, and a connecting manner is clamping connection or threaded connection; and the locking mechanism is arranged in the bone marrow collector, and is detachably connected with the fixed handle. According to the multi-functional bone marrow random inspection needle disclosed by the invention, a plurality of sampling outlets are designed, so that the effect of taking bone marrow fluid and bone marrow matrix at the same time through puncturing in one time can be realized; and an enclosing deviceis additionally arranged, so that the situation that the bone marrow falls in the process of withdrawing the puncture needle can be avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a multifunctional bone marrow sampling 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 marrow fluid and bone marrow should be taken separately. Bone biopsy can not only understand the composition of bone marrow cells and the distribution of blast cells, but also observe the cell morphology, which is convenient for pathological diagnosis, and is of great significance to the diagnosis of aplastic anemia and myelodysplastic disease. In addition, it has diagnostic significance for bone marrow necrosis and bone marrow fatty change. [0003] In clinical biopsy, bone marrow fluid sampling needles and bone marrow biopsy needles are generally used separately. When biopsy samples are taken separately, patients have to suffer from two punctur...

Claims

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Application Information

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IPC IPC(8): A61B10/02
CPCA61B10/025A61B10/0275A61B2010/0258
Inventor 不公告发明人
Owner 王欣荣
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