Bone marrow collection and filtration device and method

Abstract

The invention belongs to the technical field of medical equipment, and discloses a bone marrow collecting and filtering device and method; it is provided with: a syringe with a hole, a connecting hole, and a filter tube; it can realize the function of collecting bone marrow, and the head of the syringe with a hole is connected to a puncture needle, Bone marrow is extracted; compared with the traditional syringe, the perforated syringe has one more connection hole to connect to the outside, which can be connected to a filter tube for the bone marrow to be filtered and transported in a closed state; the first filter screen with a pore size of 300 microns can filter out The bone marrow granules composed of fibroblasts, as well as bone and skin debris, can prevent the catheter from being blocked; the second filter with a pore size of 100 microns can filter out fat droplets, hematopoietic island cell clusters, etc., and prevent embolism after transfusion into the patient's body. Complications; the flow rate meter can monitor the flow rate; the single-chip microcomputer can analyze the change of the flow rate and determine whether there are still impurities in the bone marrow fluid; the blood pump provides power to make the collected bone marrow flow in the device to speed up the efficiency of the filtration process.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a bone marrow collection and filtration device and method. Background technique [0002] At present, the commonly used existing technology in the industry is as follows: because the bone marrow fluid contains a large number of fat droplets, hematopoietic island cell clusters, macrophages and fibroblasts composed of bone marrow granules and other bulky substances, it is easy to cause disease after infusion into the patient's body. Embolism and other complications, so these substances must be filtered out during the bone marrow fluid collection process; the existing technology uses a small-aperture needle to filter the bone marrow, and the small-aperture needle is easy to block. The bone marrow sticks to the replaced needle, causing waste; the existing technology uses a filter or membrane to filter the bone marrow, and the bone marrow passes through the filter...

AI Technical Summary

Problems solved by technology

[0005] (2) The existing technology uses small-aperture needles to filter bone marrow. Small-aperture needles are easy to clog, which not only delays time in the process of needle replacement, but also easily causes bone marrow pollution. At the same time, bone marrow adheres to the replaced needle, resulting in waste.

[0006] (3) The existing technology uses a filter screen or a filter membrane to filter the bone marrow, and the bone marrow passes through the filter screen through its own gravity. The process takes a long time, and it is impossible to confirm whether the filtered bone marrow still contains large particles of impurities

[0007] (4) The calculation of the flow rate of bone marrow in the filtering device in the prior art is slow and inaccurate, and the control ability of the device that provides power for the collection device is poor, and the stability of bone marrow collection cannot be ensured.

[0008] (5) The statistical results of the flow rate during the bone marrow collection process are inaccurate

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