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Intraocular ruler

A technology of secondary ruler and main ruler, used in eye testing equipment, medical science, diagnosis, etc.

Active Publication Date: 2012-07-11
BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no device for direct measurement of intraocular tissue in vivo

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with drawings and embodiments.

[0015] All components of the intraocular ruler of the present invention are made of metal materials, wherein the main ruler and the auxiliary ruler are preferably made of nickel-chromium alloy. The handle 1 has a length of 80mm-120mm and can be designed into any shape that is convenient to hold, such as a round stick shape or a flat stick shape. The proximal end of the main ruler 3 can be welded together with the handle 1, or can be designed as a plug-in movable connection structure 2. The active plug structure 2 of the main ruler 3 and the handle 1 is convenient for storage in a standby state and postoperative cleaning and disinfection.

[0016] The optimum size of the main and auxiliary rulers is that the length of the main ruler 3 is 40mm, the length of the auxiliary ruler 5 is 3mm, the width of the main and auxiliary rulers is 1mm, and the thickness of the main and...

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Abstract

The invention discloses an intraocular ruler for directly measuring a ciliary process. The intraocular ruler comprises a handle, a main ruler and a secondary ruler, wherein the main ruler and the secondary ruler both have batten-shaped structures; the main ruler longer than the secondary ruler is 30-50mm, and the secondary ruler is 3-5mm; the main ruler and the secondary ruler are arranged as an L under service condition. The first 4mm part of the main ruler is provided with a scale, while the whole secondary ruler is provided with a scale. The main ruler and the secondary ruler can be structured into two parts; rotating shaft is mounted at the remote end of the main ruler and the near end of the secondary ruler, thus, the main ruler and the secondary ruler can be connected in rotation manner. The intraocular ruler disclosed by the invention is used for measuring the size of the ciliary process during intraocular surgery; and the intraocular ruler is convenient, direct, and precise.

Description

technical field [0001] The invention belongs to medical instruments for operation, in particular to an instrument used in ophthalmology for performing intraocular surgery. Background technique [0002] In human eye anatomy, the ciliary body is a ring-shaped organ located between the lens and the vitreous body, and the ciliary process is the radial protrusion of the ciliary body. In some ophthalmic diseases, the ciliary process will pathologically expand or shrink and become smaller. At present, the judgment of whether there is a pathological size change of the ciliary process relies on medical imaging examinations mainly based on ultrasound examinations. A normal person has about 70 ciliary processes in one eyeball. The existing medical literature records that the normal size of the ciliary process is about 2mm long, 0.5mm wide, and 1mm high. The source of this normal value is also based on the statistical analysis of medical imaging data. However, these medical imaging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/10
Inventor 史翔宇魏文斌
Owner BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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