A bacterial reverse-inoculation identification method in blood testing

A technology of blood testing and bacteria, which is applied in the field of medical disease microorganism identification, can solve the problems of long culture period, insufficient positive rate of blood culture, wrong results, etc., and achieve the effect of easy operation and implementation, good repeatability and simple experiment

Inactive Publication Date: 2015-04-29
晏健强
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual clinical testing, the collected blood samples are directly incubated and cultured, and some specific pathogenic bacteria often fail to be detected.
Especially in recent years, the incidence of blood infection is on the rise. Many hospitals with better equipment basically use automatic blood bacterial culture equipment for blood bacterial culture. Generally, the positive rate of blood culture is not high enough, and the culture period is long, which is prone to Contamination leads to problems such as erroneous results, which have a huge impact on the selection of drugs in clinical treatment, timely and effective infection control, and the final patient treatment effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] Test materials and reagents

[0015] 1) Patient blood sample;

[0016] 2) Serum basal medium: Serum was evenly heated to 56°C and kept for 30 minutes, stored at 4°C, and then mixed with basal medium. The basal medium accounted for 80%-90%, and the serum accounted for 10%-20%. Add double antibody stock solution (penicillin+streptomycin) according to 1% volume fraction;

[0017] 3) Drug sensitivity test: piperacillin-tazobactam sodium, gentamicin, vancomycin, clindamycin, cefuroxime sodium, cefotaxime sodium.

[0018] experiment procedure:

[0019] 1) Sampling culture: take a sample from the blood sample by aseptic operation to incubate pathogenic bacteria, and culture it in a shaker for 10-24 hours;

[0020] 2) Reverse inoculation culture: Take the supernatant liquid on the liquid surface as a sample, smear it on the serum culture medium in reverse, place it upside down in a constant temperature incubator at 36°C for constant temperature cultivation for 2 days, and ob...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Through reverse-inoculation after suspected disease microorganisms are subjected to inoculated culture, different types of the microorganisms are distinguished by utilization of different growth characteristics and colony characteristics for the different types of the microorganisms after bacterial culture, and a suspected disease bacterium is selected and subjected to drug allergy testing so as to provide basis for a certain type of infection for clinicians. The method provided by the invention has advantages of simple experiments, low costs, easy operation and implementation, good repeatability, and the like, and overcomes limitation of traditional clinical examination to some extent.

Description

technical field [0001] The invention relates to the technical field of medical disease microorganism identification, and in particular provides a simple and accurate method for reverse identification of bacteria in blood tests. Background technique [0002] Normal human blood is free of bacteria. When the human body is infected by bacteria, according to the degree of bacterial infection, the diseases caused by blood bacterial infection can be simply divided into bacteremia, sepsis, sepsis and so on. Bacterial infection of the human body generally causes inflammation in a certain part first, such as boils, carbuncles, pneumonia, encephalitis, etc., in the case of reduced resistance. In medicine, the disease caused by bacteria entering the blood circulation from the local inflammation site is called bacteremia. At this time, a small amount of bacteria will often invade the blood. If the person's general condition is good, this small amount of bacteria will be eliminated by v...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/02C12N1/20
Inventor 晏健强
Owner 晏健强
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products