Retrobulbar drug injection device

A technology of injecting medicine and behind the ball, applied in ophthalmic surgery, ophthalmic treatment, etc., can solve problems such as intraocular infection of intraocular drugs, improper operation of injection needles, and toxic reactions

Active Publication Date: 2016-10-26
颜繁诚 +1
View PDF17 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

9) Improper operation or the injection needle is too sharp to pierce the eyeball, resulting in a drop in intraocular pressure, intraocular infection, or intraocular drug toxicity, etc.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Retrobulbar drug injection device
  • Retrobulbar drug injection device
  • Retrobulbar drug injection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0114] 1. A retrobulbar drug injection device, comprising: a syringe and an outer sheath that accommodates the syringe, wherein the syringe includes a syringe barrel, a piston push rod, a piston, a first protrusion, a first needle, and a syringe barrel. a first support plate disposed about the syringe barrel at the proximal end of the; and

[0115] The sheath includes a sheath barrel, a second protrusion, a second needle, and a second support plate disposed about the sheath barrel at a proximal end of the sheath barrel;

[0116] wherein a groove is provided on the second support plate, the groove being sized to receive the first support plate;

[0117] Internal thread or external thread is provided on the distal inner wall of the outer sheath cylinder, and the distal outer wall of the syringe cylinder is provided with the internal thread or external thread on the outer sheath cylinder. corresponding external or internal threads threadedly engaged, and the first support plate ...

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

The invention discloses a retrobulbar drug injection device. The device comprises a syringe and a sheath, the syringe comprises a syringe cylinder, a piston push rod, a piston, a first protrusion portion, a first needle, and a first support plate, the sheath includes a sheath cylinder, a second protrusion portion, a second needle, and a second support plate, an inner wall at a far side of the sheath cylinder is provided with internal threads, and an outer wall at a far side of the syringe cylinder is provided with external threads; the end at a far side of the first needle is blunt, and the end at a far side of the second needle is pointed; the portion at the far end of the first needle is provided with one or more drug injection openings; and the bottom surface of the sheath cylinder is provided with one or more air holes. By using the retrobulbar drug injection device, the second needle and the first needle respectively perform the puncture function and the stripping function, and the drug injection openings of the first needle can be employed for drug injection so that the depth of the drug injection position, the drug injection amount, and the drug injection speed can be actively controlled.

Description

technical field [0001] The invention relates to an eye drug injection device, in particular to a retrobulbar eye drug injection device. Background technique [0002] Retrobulbar injection is to inject drugs into the muscle cone behind the eyeball to achieve therapeutic and anesthesia effects. This operation is mainly used for ciliary ganglion block anesthesia in intraocular surgery, inflammation of the back of the eye, such as retrobulbar optic neuritis, choroiditis, retinitis and central retinal artery occlusion, and it can also be used as a local treatment for severe pain in glaucoma Route of administration. [0003] However, retrobulbar injections with conventional needles (eg, 1.25-inch, 25- or 27-G needles or short-beveled, blunt retrobulbar needles) require more skill. Even with proficient operating skills, the inherent disadvantages of conventional needles and the complex anatomical structure of the retrobulbar injection still have a non-negligible complication rate...

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): A61F9/00A61F9/007
CPCA61F9/0008A61F9/00736
Inventor 颜繁诚李树宁王宁利纪晓峰
Owner 颜繁诚
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap