Blood vessel display device

A technology for display devices and blood vessels, which is applied in medical science, sensors, diagnostic recording/measurement, etc., and can solve problems such as focus shift, image blur, and inability to display clear blood vessel images in living tissue.

Inactive Publication Date: 2011-10-12
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in such a device, since the acquisition of blood vessel image data and the display of the blood vessel image data need to be performed by different devices, the position of the blood vessel visualized by the blood vessel image and the actual blood vessel may be different.
Furthermore, since the surface of living tissue is uneven and complexly curved, if an image is displayed on the surface of living tissue using a DLP projector, etc., focus shift and image blurring will occur.
That is, in conventional devices, there is a problem that blood vessel images that are clear on the surface of living tissue and that do not shift in position relative to actual blood vessels cannot be displayed.

Method used

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no. 1 Embodiment approach

[0038] First, a first embodiment of the blood vessel display device of the present invention will be described.

[0039] figure 1 is a diagram showing an image displayed by the blood vessel display device of the present invention, figure 2 is a schematic diagram of the blood vessel display device of the present invention, image 3 yes figure 2 A partially cutaway perspective view of an optical scanner included in the blood vessel display device shown, Figure 4 is true image 3 The drive of the optical scanner is shown in the cross-sectional view for illustration. Among them, for the convenience of explanation, the image 3 , Figure 4 The upper side is called "upper", the lower side is called "lower", the left side is called "left", and the right side is called "right".

[0040] The blood vessel display device 100 is a device for visualizing blood vessels (in particular, veins) existing on the surface of living tissue. Such blood vessel display device 100 is, for ex...

no. 2 Embodiment approach

[0106] Next, a second embodiment of the blood vessel display device of the present invention will be described.

[0107] Figure 5 is a schematic diagram of a blood vessel display device according to a second embodiment of the present invention, Image 6 is expressed by Figure 5 A diagram showing an example of an image displayed by the display mechanism.

[0108] Hereinafter, the blood vessel display device 100A of the second embodiment will be described focusing on differences from the blood vessel display device 100 of the first embodiment described above, and the description of the same matters will be omitted.

[0109] The blood vessel display device 100A of the second embodiment has a point determination unit 800 , and is substantially the same as the blood vessel display device of the first embodiment described above except that the image displayed on the irradiated site 610 is different. In addition, the same code|symbol is attached|subjected to the same structure a...

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Abstract

A blood vessel display device includes: a detection unit that scans body tissue with laser light for detection and detects reflected light from an irradiated part of the body tissue to which the laser light for detection has been irradiated; an image data generating unit that detects a surface shape of the irradiated part and the arrangement of blood vessels, which are present in a superficial layer of the irradiated part, on the basis of a detection result of the detection unit and generates image data of an image for visualizing the blood vessels displayed on the irradiated part; and a display unit that displays an image for visualizing the blood vessels on the irradiated part by scanning the irradiated part with laser light for display on the basis of the image data generated by the image data generating unit.

Description

technical field [0001] The invention relates to a blood vessel display device. Background technique [0002] For example, when a doctor or the like injects into a patient's arm or the like at a medical site, the injection needle is punctured into the skin tissue targeting a superficial blood vessel. At this time, if the physician can confirm the blood vessel by visual observation, the blood vessel can be secured with a high probability. However, some patients, such as children or people with thick subcutaneous fat, have difficulty visually confirming blood vessels. In such cases, the identification of sure blood vessels is significantly reduced. [0003] In view of this, as a technique for visualizing blood vessels located on the surface of living tissue, the following device ("VEINVIEWER" manufactured by Luminetx Co., Ltd.) has been developed in recent years. The acquired blood vessel image data is displayed on the surface of living tissue (for example, the back of the ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
CPCA61B5/0064A61B5/489
Inventor 村田昭浩武田高司
Owner SEIKO EPSON CORP
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