Clinical stem cell extraction and puncture structure

Abstract

The invention relates to a clinical stem cell extraction and puncture structure, and discloses a structure for driving a rotating blade and a spiral shaft to rotate through a double-shaft motor to penetrate into a medullary cavity to suck stem cells under negative pressure. The structure is characterized in that the fixing ring is arranged on a supporting plate and located above the supporting plate, a cover plate is arranged on a fixing ring, a motor box is arranged on the supporting plate and located below the supporting plate, the motor box and the fixing ring are coaxial, a guide pipe is perpendicularly arranged on the motor box and communicated with the motor box, an arc-shaped limiting groove is formed in the edge of one side of the supporting plate, the two connecting blocks are symmetrically arranged on the supporting plate, and are positioned at two sides of the fixing ring, a plurality of sealing strips are correspondingly arranged on the outer edge of the connecting block, two connecting holes are formed in the connecting block, one ends of the four extraction pipes are correspondingly communicated with the connecting holes, the other ends of the four extraction pipes are correspondingly communicated with the guide pipes, a micro motor is arranged in the motor box, and the micro motor is a double-shaft motor; and two ends of a motor shaft of the micro motor are respectively arranged in the fixing ring and the guide pipe.

Description

[0001] This application is a divisional application of the invention patent application with the application number: 2018104303393 and the title: "A puncture structure for clinical medical stem cell extraction". The original filing date is: May 08, 2018. technical field [0002] The invention discloses a clinical stem cell extracting and puncturing structure, which relates to a structure for extracting and puncturing stem cells for stem cell transplantation in clinical medicine, and belongs to the field of medical devices. In particular, it relates to a structure in which a rotating blade and a helical shaft are respectively driven by a biaxial motor to rotate, penetrate into a medullary cavity, and absorb stem cells under negative pressure. Background technique [0003] At present, stem cells in medicine are cells capable of self-replication, which can differentiate into a variety of functional cells under specific physiological conditions. Depending on the developmental sta...

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Problems solved by technology

[0003] At present, stem cells in medicine are cells capable of self-replication, which can differentiate into a variety of functional cells under specific physiological conditions. Depending on the developmental stage of stem cells, there are also different functions. When some stem cells are insufficient or lost in patients, Stem cell transplantation is required. Stem cells mostly exist in the medullary cavity of the bone, and are extracted through the red marrow and yellow marrow. When extracting, it needs to penetrate the bone and extend into the medullary cavity for extraction. The existing stem cell collection device Most of them are manually extracted with a needle tube, the extraction efficiency is low, and the penetration of the needle tube is poor. During the extraction, the needle tube will retreat and move, which will affect the extraction of stem cells and greatly increase the probability of mistakes. When the needle tube is extracted, the needle tube will be blocked, which will affect the extraction efficiency or extraction action. The manual collection pressure is different, the extraction efficiency of stem cells is different, and the stability in the medullary cavity is poor.

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