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Cerebrospinal fluid extractor

An extractor and cerebrospinal fluid technology, applied in the field of medical appliances, can solve problems such as easy contamination of cerebrospinal fluid, and achieve the effects of reducing pollution, being easy to use, and preventing falling

Pending Publication Date: 2018-09-14
HUGOBIOTECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when collecting cerebrospinal fluid, a sterile test tube sleeve is often used to place the tail of the puncture needle, and it is still easy to contaminate the cerebrospinal fluid during the collection process

Method used

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  • Cerebrospinal fluid extractor
  • Cerebrospinal fluid extractor
  • Cerebrospinal fluid extractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the cerebrospinal fluid extractor includes a sampling tube 1, a tube plug 2, a connecting tube 3 and a tube cap 10. One end of the sampling tube 1 is sealed and the other end is provided with an opening. The tube plug 2 is sealed and arranged on the sampling tube 1 One end is provided with an opening, the upper surface of the tube plug 2 is provided with an insertion port 4, one end of the connecting tube 3 is provided with a tube plug puncture needle 5, and the other end is provided with a lumbar puncture needle connector 6, and the tube plug punctures The needle 5 penetrates through the insertion port 4 and is inserted into the plug 2 to connect with the sampling tube 1, the lumbar puncture needle connector 6 is connected to the tail of the lumbar puncture needle, and the cap 11 is sleeved on the sampling tube 1. The tube 1 is provided with an open end to seal the sampling tube 1 , and the upper part of the sampling tube 1 is provided with a...

Embodiment 2

[0036] Such as figure 2 As shown, in this embodiment, the sampling tube 1 is a negative pressure sampling tube, and its interior is set to negative pressure.

[0037]In this embodiment, the sampling tube 1 is a negative pressure sampling tube, the sampling tube 1 is sealed by the plug 2, and the internal pressure is lower than one atmosphere. 1 is internally connected, so that the lumbar puncture needle, the connecting tube 3, and the tube plug puncture needle 5 are connected with the sampling tube 1, and the negative pressure inside the sampling tube 1 is used to form a pressure difference with the pressure in the human body, and the cerebrospinal fluid is under the action of pressure The cerebrospinal fluid can be sucked into the sampling tube 1 more smoothly and quickly through the connecting tube.

[0038] Such as figure 2 and image 3 As shown, in this embodiment, the connecting pipe 3 is also provided with a constant flow device 7, the flow constant device 7 include...

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Abstract

The invention relates to the technical field of medical appliances, in particular to a cerebrospinal fluid extractor, comprising a sampling tube, a tube plug and a connection tube. One end of the sampling tube is closed, and the other end of the sampling tube is provided with an opening; the tube plug is hermetically arranged at the opening end of the sampling tube; the upper surface of the tube plug is provided with a receiving port; one end of the connection tube is provided with a tube plug puncture needle; the other end of the connection tube is provided with a lumbar puncture needle connector; a lumbar puncture needle is passed through the receiving port into the tube plug and connected with the inside of the sampling tube; the lumbar puncture needle connector is connected with the tail of the lumbar puncture needle; a tube cap sleeves the opening end of the sampling tube and seals the sampling tube; the upper half of the sampling tube is provided with a fixing ring; the tube capis connected with the fixing ring through a fixing strap. The cerebrospinal fluid extractor has the advantages of simple structure, low production cost, and less danger of samples being contaminated.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a cerebrospinal fluid extractor. Background technique [0002] Cerebrospinal fluid is a colorless, transparent liquid that fills the ventricles, subarachnoid space, and central canal of the spinal cord. Cerebrospinal fluid is produced by the choroid plexus in the ventricles and is slightly viscous, similar to plasma and lymph. Cerebrospinal fluid is an extracellular fluid. Normal cerebrospinal fluid has a certain chemical composition and pressure, which plays an important role in maintaining the relative stability of intracranial pressure. When suffering from central nervous system diseases, a lumbar puncture is often required to draw cerebrospinal fluid for examination to assist in diagnosis. At present, when collecting cerebrospinal fluid, a sterile test tube sleeve is often used to place it at the tail of the puncture needle, and it is still easy to contaminate t...

Claims

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Application Information

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IPC IPC(8): A61B10/00
CPCA61B10/0045A61B2010/0077
Inventor 夏涵
Owner HUGOBIOTECH BEIJING CO LTD
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