BLOOD VESSEL IMAGE LOCATING SYSTEM

• US 20160354030A1
• Filed: 11/13/2015
• Published: 12/08/2016
• Est. Priority Date: 05/13/2013
• Status: Active Grant

• Current Assignee: Zd Medical (Hangzhou) Co., Ltd.
• Original Assignee: ZD Mecical Incorporated
• Inventors: TANG, Lei, CAI, Ming
• Granted Patent: US 10,582,892 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2562/0238 Optical sensor arrangements for performing transmission measurements on body tissue
• CPC Class Codes: A61B 2576/02 specially adapted for a particular organ or body part
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/489 Blood vessels
• CPC Class Codes: G06T 2207/20112 Image segmentation details
• CPC Class Codes: G06T 2207/20172 Image enhancement details
• CPC Class Codes: G06T 2207/30101 Blood vessel; Artery; Vein; Vascular
• CPC Class Codes: G06T 5/00 Image enhancement or restoration
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/11 Region-based segmentation
• CPC Class Codes: G06T 7/70 Determining position or orientation of objects or cameras camera calibration G06T7/80
• CPC Class Codes: H04N 23/651 for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera
• CPC Class Codes: H04N 23/76 by influencing the image signals
• CPC Class Codes: H04N 9/31 Projection devices for colour picture display , e.g. using electronic spatial light modulators [ESLM]

Abstract

Disclosed is a vascular image positioning system, including an image enhancing device (1) and an image projection device (2) used cooperatively with the vascular image enhancing device (1). The transmission light emitted by the enhancing device (1) passed through the sites of the human body surface to be tested, is received by the image projection device (2), and after image processing, forms in situ images at sites on the surface of the skin of the human body to be tested. The enhancing device (1) comprises a light emitting unit (101) and a drive unit (102) driving the light emitting unit (101) to emit light. The vascular image positioning system provides the function of using a transmission light source to achieve in situ imaging of the blood vessels at the sites to be tested; secondly, it also provides a mode for combining a transmission light source with a reflection light source, thereby strengthening the function of in situ imaging and widening the application range.

Claims

1. A blood vessel image locating system, characterized in that said blood vessel image locating system comprises a blood vessel image enhancing device and an image projection device for use in combination with the enhancing device, a transmission light emitted by said enhancing device penetrates through a test portion on a surface of a human body;

said enhancing device comprises a first light emitting unit and a drive unit driving the first light emitting unit to emit light, the wavelength of the light emitted by the first light emitting unit is 730 nm to 990 nm;

the drive unit comprises a power supply and a drive circuit connecting the power supply and the first light emitting unit;

the image projection device further comprises a second light emitting unit, said second light emitting unit is used to emit exciting light to the test portion on the surface of the human body and conduct diffuse reflection on the test portion of the human body, the diffuse reflection light and the transmission light penetrating through the test portion on the surface of the human body are both received by the image projection device and subjected to an image processing, and an image combining the diffuse reflection light and the transmission light is projected to the test portion on the surface of the human body to provide an in situ imaging.

2. The blood vessel image locating system according to claim 1, characterized in that said enhancing device further comprises a sensing switch-on circuit for detecting whether or not a region adjacent to a light emission window is covered.

3. The blood vessel image locating system according to claim 1, characterized in that said enhancing device further comprises a timing switch.

4. The blood vessel image locating system according to claim 1, characterized in that said enhancing device further comprises a brightness adjusting unit.

5. The blood vessel image locating system according to claim 1, characterized in that said enhancing device further comprises a power display unit.

6. The blood vessel image locating system according to claim 1, characterized in that said image projection device comprises a signal collection unit, an image processing unit, and an image projection unit, said signal collection unit is used to collect a space distribution image of the transmission light and the diffuse reflection light on the test portion of the skin surface of the human body;

said image processing unit performs a signal processing on the image collected by the signal collection unit, to obtain a blood vessel image and transmit the blood vessel image to the image projection unit; and

said image projection unit receives the signal from the image processing unit, and projects the blood vessel image to the test portion on the surface of the human body.

7. The blood vessel image locating system according to claim 1, characterized in that said first and second light emitting units comprise at least one light emitting diode.

8. The blood vessel image locating system according to claim 1, characterized in that said first and second light emitting units comprise at least two light emitting diodes, and at least two light emitting diodes of the light emitting diodes emit exciting light of different wavelengths.

9. The blood vessel image locating system according to claim 1, characterized in that said power supply comprises a rechargeable battery, a non-rechargeable battery, or a combination thereof.

10. The blood vessel image locating system according to claim 9, characterized in that said rechargeable battery is configured as a fixed or movable detachable structure.

11. The blood vessel image locating system according to claim 2, characterized in that said image projection device comprises a signal collection unit, an image processing unit, and an image projection unit, said signal collection unit is used to collect a space distribution image of the transmission light and the diffuse reflection light on the test portion of the skin surface of the human body;

said image processing unit performs a signal processing on the image collected by the signal collection unit, to obtain a blood vessel image and transmit the blood vessel image to the image projection unit; and

said image projection unit receives the signal from the image processing unit, and projects the blood vessel image to the test portion on the surface of the human body.

12. The blood vessel image locating system according to claim 3, characterized in that said image projection device comprises a signal collection unit, an image processing unit, and an image projection unit, said signal collection unit is used to collect a space distribution image of the transmission light and the diffuse reflection light on the test portion of the skin surface of the human body;

said image processing unit performs a signal processing on the image collected by the signal collection unit, to obtain a blood vessel image and transmit the blood vessel image to the image projection unit; and

said image projection unit receives the signal from the image processing unit, and projects the blood vessel image to the test portion on the surface of the human body.

13. The blood vessel image locating system according to claim 4, characterized in that said image projection device comprises a signal collection unit, an image processing unit, and an image projection unit, said signal collection unit is used to collect a space distribution image of the transmission light and the diffuse reflection light on the test portion of the skin surface of the human body;

said image processing unit performs a signal processing on the image collected by the signal collection unit, to obtain a blood vessel image and transmit the blood vessel image to the image projection unit; and

said image projection unit receives the signal from the image processing unit, and projects the blood vessel image to the test portion on the surface of the human body.

14. The blood vessel image locating system according to claim 5, characterized in that said image projection device comprises a signal collection unit, an image processing unit, and an image projection unit, said signal collection unit is used to collect a space distribution image of the transmission light and the diffuse reflection light on the test portion of the skin surface of the human body;

said image processing unit performs a signal processing on the image collected by the signal collection unit, to obtain a blood vessel image and transmit the blood vessel image to the image projection unit; and

said image projection unit receives the signal from the image processing unit, and projects the blood vessel image to the test portion on the surface of the human body.

15. The blood vessel image locating system according to claim 6, characterized in that said first and second light emitting units comprise at least one light emitting diode.

16. The blood vessel image locating system according to claim 6, characterized in that said first and second light emitting units comprise at least two light emitting diodes, and at least two light emitting diodes of the light emitting diodes emit exciting light of different wavelengths.