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Integrated vein search projection device and system

A technology of venous blood vessels and projection devices, which is applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as inaccurate positioning, large amount of calculation, complex structure, etc., and achieve high image frame rate, real-time positioning, and indicating positioning accurate effect

Active Publication Date: 2013-04-03
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an integrated venous vessel finding projection device in view of the defects of the existing technology such as complex structure, large amount of calculation, and inaccurate positioning

Method used

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  • Integrated vein search projection device and system
  • Integrated vein search projection device and system
  • Integrated vein search projection device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 The optical path structure of the vein vessel finding and projection device in Embodiment 1 is shown. This device realizes the integration of vein infrared imaging and vein projection positioning optical system, realizes miniaturization, and can accurately locate the vein position at the same time.

[0028] Such as figure 1 As shown, the integrated vein and blood vessel finding projection device includes an imaging lens 1 , a dichroic prism 2 , a dichroic prism 3 , a projection display device 4 , an optical compensation prism 5 , an infrared imaging device 6 , an illuminating mirror group 7 and a visible light source 8 . The imaging lens 1 is arranged on the right side (first side) of the dichroic prism 2, the dichroic prism 3 and the projection display device 4 are arranged on the front side (third side) of the dichroic prism 2 in order from near to far, and the optical compensation prism 5 The infrared imaging device 6 is arranged on the left side (second ...

Embodiment 2

[0041] Figure 5 The optical path structure of the venous blood vessel finding projection device in Embodiment 2 is shown. Such as Figure 5 As shown, the integrated vein and blood vessel finding projection device includes an imaging lens 1, a dichroic prism 2, a dichroic prism 3', a projection display device 4', an optical compensation prism 5', an infrared imaging device 6, an illumination mirror group 7' and Visible light source 8 .

[0042] Embodiment 2 The configuration of the vein and blood vessel finding projection device is basically the same as that of Embodiment 1, the only difference being that in Embodiment 2, the dichroic prism 3' is a TIR prism, and the projection display device 4' is a DMD (Digital Micromirror) panel. The lens group 7' is composed of a plurality of optical lenses (excluding optical polarizers). Correspondingly, the optical material used in the optical compensation prism 5' is the same as the TIR prism 3', and its light passing length is equal...

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Abstract

The invention relates to an integrated vein search projection device and system. The device comprises a color splitting prism, a visible light source and an illumination mirror set, wherein an imaging lens is arranged on a first side of the color splitting prism; an optical compensation prism and an infrared imaging device are sequentially arranged on a second side of the color splitting prism from near to far; a light splitting prism and a projection display device are sequentially arranged on a third side of the color splitting prism from near to far; the visible light source and the illumination mirror set are arranged on one side of the light splitting prism; the infrared imaging device is connected with the projection display device; light, emitted by the visible light source, is projected on the projection display device; the infrared imaging device obtains infrared image information of veins; the projection display device is driven to modulate the light which is projected thereon; and then, images of the veins are imaged to skin surfaces of the veins. The system consists of an infrared light source and the projection device. The device has the advantages of accuracy and real time performance in positioning and simple structure.

Description

technical field [0001] The present invention relates to an auxiliary positioning device for venous blood vessel puncture, more specifically, an integrated venous blood vessel finding and projection device, and a venous blood vessel finding and projection system using this device, which is used to help medical staff find blood vessels for venous puncture. puncture. Background technique [0002] In clinical treatment, venipuncture is a common method of administration and testing. However, due to many reasons, such as small and difficult to find blood vessels in patients; some trauma patients lost more blood and low blood pressure caused the blood vessels to not fill; or the mental stress and lack of experience of medical staff, etc., repetitive venipuncture is relatively common. This will not only increase the suffering of patients, but also cause tension in the relationship between doctors and patients. Therefore, there is an urgent need in the market for a medical aiding i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
Inventor 周倩彭诚倪凯许武李阳许明飞田瑞
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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