Micro-injection device

A micro-injection and injection device technology, applied in the field of medical equipment, can solve the problem of lack of safe and effective inner ear administration routes and other problems

Inactive Publication Date: 2020-10-23
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Drug therapy, gene therapy, hair cell regeneration and other mouse experimental treatments for the cause have been researched and explored, but there is a lack of safe and effective inner ear drug delivery routes

Method used

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Examples

Experimental program
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Effect test

Embodiment approach

[0028] Use a probe to drill a channel on the posterior semicircular canal, as long as the size of the channel can meet the insertion of the thin tube 3, insert the injection needle into the opening end of the glass capillary 1, and inject the drug to be injected into the glass capillary 1, or the glass capillary 1 directly as a syringe, pour the drug to be injected into it, push it with the piston push rod that matches it, and the drug flows into the posterior semicircular canal through the metal hollow tube 2 and the thin tube 3 , the drug can first go to the vestibule and then to the cochlea along the posterior semicircular canal to achieve drug delivery to the inner ear.

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Abstract

The invention discloses a micro-injection device. The device comprises a capillary tube and a thin hose, one end of the capillary tube is connected to one end of the thin hose in a sealed mode, the radius of the thin hose is smaller than that of the capillary tube, the needle head end of an injection needle is inserted into the capillary tube, the thin hose extends into a rear semicircular canal,and a medicine is injected into the capillary tube from the injection needle and flows into the rear semicircular canal through the thin hose. The device has the advantages that: the injection deviceserves as a transition section for administration of a rear semicircular canal through a common injection needle, can guarantee that the medicine can be injected into the rear semicircular canal in atiming, quantitative, constant-speed and leakage-free mode, can avoid trauma caused by the injection needle to the rear semicircular canal, and guarantees safety and reliability of each time of injection.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a microinjection device for injecting medicine into the posterior semicircular canal in the ear. Background technique [0002] Deafness not only hinders speech and communication of patients, increases the risk of dementia, endangers human health, but also brings a huge social and economic burden. According to incomplete statistics, the global economic loss caused by deafness reaches 750 billion US dollars every year. The auditory pathway is complex, there are many pathogenic factors, the individual differences of deafness are large, and it is closely related to genetic, environmental and other factors, making it difficult to prevent and treat. At present, there is no effective etiological treatment except for artificial hearing implantation. [0003] In recent years, with the emphasis on deafness research, the basic research on deafness has been greatly promoted. Drug therapy, g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F11/00A61M31/00
CPCA61F11/00A61M31/00A61M2210/0662
Inventor 陶永赵幸乐孙卓尔康文汪雪玲於得红吴皓
Owner SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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