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An injection and extraction ophthalmic device

An ophthalmic device and injection source technology, applied in the directions of syringes, ophthalmic treatment, hypodermic injection devices, etc., can solve the problems of increasing the burden of treatment, and achieve the effect of reducing the burden and reproducing the volume.

Inactive Publication Date: 2018-12-21
SINGAPORE HEALTH SERVICES PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increased injection load is both a therapeutic burden on the patient and a challenge for any busy retinal practice

Method used

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  • An injection and extraction ophthalmic device
  • An injection and extraction ophthalmic device
  • An injection and extraction ophthalmic device

Examples

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Embodiment Construction

[0037]Referring to the accompanying drawings, in order to provide rapid extraction of vitreous samples, cutting of gel state of vitreous samples and delivery of therapeutic drugs, in one embodiment, the present invention provides a disposable hand-held extraction and delivery device 100, so that For extracting a vitreous sample from a patient's eye, the device includes a housing 200 extending from a proximal end to a distal end and at least one opening. At the distal end, a needle portion 600 having a through hole protrudes from the at least one opening. The needle portion 600 includes at least one side hole along a predetermined length of needle portion 600 . The at least one side hole 610 of the needle portion 600 may preferably be sized and shaped so as to increase the suction area. The at least one side hole 610 is shaped in any manner, preferably rectangular, to maximize streamlined flow exchange. In alternatives, the at least one side hole 610 may be shaped as a circle ...

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Abstract

An extraction and injection ophthalmic device comprising; a housing having; an injection port arranged to receive an injection source; a vacuum port arranged to receive an vacuum source; an eye engagement portion, and; at least one needle for selective fluid communication with one or both of the vacuum port or injection port; wherein on activation of the vacuum source the device is arranged to extract a sample through the needle, and on activation of the injection source the device is arranged to inject an agent through the needle.

Description

technical field [0001] The present invention relates to the harvesting of bodily fluids for diagnostics, followed by injection for ophthalmology and ophthalmic therapy, and for similar purposes in other parts of the human body. Background technique [0002] Age-related macular degeneration (AMD) and diabetic eye disease are the leading causes of blindness among elderly patients worldwide, including in Singapore and other Asian countries. Anti-vascular endothelial growth factor (anti-VEGF) agents injected directly into the eye (vitreous humor) have become the standard treatment for these diseases. This has been shown to be superior to other treatment modalities: photodynamic therapy for AMD and laser therapy for DR. However, the standardized method of delivery, the frequency of injections required for optimal results without overtreatment, and the ocular and systemic safety of these repeated injections over prolonged periods of time are unknown. [0003] Although intravitre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/00
CPCA61B10/0045A61F9/0017A61M5/178A61B5/154A61M5/31A61M5/3202
Inventor M·H·N·洪K·Y·C·张A·C·S·陈
Owner SINGAPORE HEALTH SERVICES PTE LTD
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