Integrated closed lumbar puncture pressure measuring and sampling system

A lumbar puncture and sampling system technology, which is applied in puncture needles, inoculation and ovulation diagnosis, diagnostic recording/measurement, etc., can solve problems such as inability to accurately measure pressure, increase the probability of brain herniation, and contamination of cerebrospinal fluid samples, and achieve improved reliability and reliability. Accuracy, reduced risk of induced herniation, and reduced procedural complexity

Inactive Publication Date: 2021-06-18
THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Defects in the existing lumbar puncture facilities: (1) The process of collecting cerebrospinal fluid through lumbar puncture is exposed to the air, and the samples are easily polluted by bacteria in the air, which will interfere with the test results, especially the pathogenic test results
(2) The existing lumbar puncture pressure measurement adopts the principle of a connector, that is, an "L"-shaped tube with upper and lower openings, the lower end is connected to the lumbar puncture needle, and the upper end is connected to the air, which will pollute the cerebrospinal fluid sample; The pressure in the spinal canal, and the length of the pressure measuring tube is limited. In clinical practice, it can only measure the pressure not higher than 330 mm water column. When the pressure of the cerebrospinal fluid exceeds 330 mm water column, it is impossible to measure the pressure accurately, especially when the intracranial pressure is severely increase...

Method used

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  • Integrated closed lumbar puncture pressure measuring and sampling system

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Embodiment Construction

[0015] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of the invention is not limited to the following.

[0016] Such as figure 1 As shown, the present invention provides a one-integrated closed lumbar puncture measuring pressure sample system, including a puncture needle 1 and a first pilot pipe 2 connected to the puncture needle 1, and the opposite end of the first pilot pipe 2 and the puncture needle 1 connection end. Connect to the inlet end 31 of the 14-through valve 3, the additional three ports of the four-pass valve 3 are sequentially set to be used to detachable connection of the detachable pressure measuring device 100 for measurement of the cerebrospinal fluid pressure. The discharge end 32 discharged to the blood-bone fluid is connected to the collected end 33 for discharging the blood contaminated the cerebellar fluid, the sewage end 32 is connected to the first collection d...

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Abstract

The invention discloses an integrated closed lumbar puncture pressure measuring and sampling system which comprises a puncture needle and a first drainage tube connected with the puncture needle, the end, opposite to the connecting end of the puncture needle, of the first drainage tube is connected with the inlet end of a four-way valve, the other three ports of the four-way valve are sequentially arranged to be a pressure measuring end used for being connected with a detachable pressure measuring device used for measuring the pressure of cerebrospinal fluid, a sewage discharging end used for discharging the cerebrospinal fluid with blood and a collecting end used for discharging the cerebrospinal fluid which is not polluted by the blood, the sewage discharging end is connected with a first collecting device for collecting and observing cerebrospinal fluid with blood, and the collecting end is connected with a sampling and collecting device for collecting cerebrospinal fluid samples, so that the integrated closed pressure measuring and sampling structure is formed through the puncture needle, the first drainage tube, the four-way valve, the first collecting device and the sampling and collecting device. According to the system, the accuracy of pressure measurement can be effectively improved, and sampling is ensured to improve the credibility and accuracy of a test result.

Description

Technical field [0001] The present invention belongs to the field of medical devices, and more particularly to a integrated closed lumbar puncture measurement pressure sample system. Background technique [0002] Lumbar puncture technology (abbreviation, waist), first via the intervertebral gap into the backpack, then the waist punching communication device is measured, and the dripping cerebral fluid is collected. Waist needle, measurement instrument, the collected test tube is separated from each other, the pressure and collecting cerebrospinal fluid is exposed to the air. [0003] Existing lumbar puncture facilities: (1) The existing waist is exposed to the air, and the sample is extremely easily contaminated by bacteria in the air, thus causing interference to test results, especially pathogenic test results. (2) The existing waist puncturing adopts the principle of connectors, that is, "L" tube of the upper and lower openings, the lower end is connected to the waist, the upp...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61B10/00A61B5/03
CPCA61B17/34A61B10/0045A61B5/032A61B2010/0077
Inventor 秦峰黄振超
Owner THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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