CN213993528U

CN213993528U - Vein image capturing device

Info

Publication number: CN213993528U
Application number: CN202022075745.8U
Authority: CN
Inventors: 陈彦桥; 元旭华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-08-20
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to a vein image capture device, wherein, the device include near infrared light source module, image acquisition module and display module, image acquisition module with infrared light source module set up relatively, display module with image acquisition module be connected. The vein image capture device adopting the structure can effectively capture veins, can effectively improve the puncture efficiency of arm veins, and can effectively avoid the pain of patients caused by repeated puncture for patients who are difficult to distinguish veins by naked eyes.

Description

Vein image capturing device

Technical Field

The utility model relates to a detection area, in particular to medical treatment detection area specifically indicates a vein image capture device.

Background

Arm venipuncture is a medical term, and is the most basic technique for medical workers to insert a needle into a vein to perform intravenous injection or the like. Venipuncture belongs to invasive operation technology, and is very difficult for patients with obesity, children and poor blood circulation to perform venipuncture. However, the blood volume is filled by the tourniquet and then the venous phenomenon causes discomfort to the patient.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to overcome the above-mentioned shortcomings in the prior art and to provide an efficient vein image capturing device.

In order to achieve the above object, the vein image capturing apparatus of the present invention has the following configuration:

the vein image capturing device is mainly characterized by comprising a near-infrared light source module, an image acquisition module and a display module, wherein the image acquisition module and the infrared light source module are arranged oppositely, and the display module is connected with the image acquisition module.

Preferably, the device is further provided with a concave groove 1, and the infrared light source module is located at a concave position of the concave groove 1.

Preferably, the image acquisition module comprises a near-infrared imaging lens, a near-infrared band-pass filter and a near-infrared image sensor; the near-infrared band-pass filter is arranged between the near-infrared imaging lens and the near-infrared image sensor, the near-infrared imaging lens and the infrared light source module are arranged oppositely, and the near-infrared image sensor is connected with the display module.

Preferably, the device further comprises a visible light cut-off filter, and the visible light cut-off filter is arranged on the near-infrared imaging lens.

Preferably, the device further comprises a housing, the light emitting portion of the near-infrared light source module and the display portion of the display module are both located on the upper surface of the housing, and the image acquisition module is connected with the housing through a bracket.

Preferably, the near-infrared light source module includes a plurality of groups of near-infrared light emitting diode groups, and each group of near-infrared light emitting diode groups includes a plurality of near-infrared light emitting diodes; and the near-infrared light emitting diodes in the near-infrared light source module are uniformly distributed.

More preferably, the near-infrared light emitting diode is composed of an infrared light emitting diode with a peak wavelength of 850 nm; the plurality of near-infrared light source modules are uniformly distributed in an equilateral triangle distribution mode.

Preferably, a plurality of groups of near-infrared light-emitting diode groups are connected in parallel and then are connected with a power supply through a switch; and a plurality of near infrared light emitting diodes in each group of near infrared light emitting diode groups are connected in series.

Adopted this utility model's vein image capture device, can effectually catch the vein, can improve the venous puncture efficiency of arm effectively, to hardly differentiateing venous patient through the naked eye, can effectively avoid the patient misery because of repeated puncture arouses.

Drawings

Fig. 1 is a schematic structural diagram of a vein image capturing device according to the present invention.

Fig. 2 is a schematic diagram of the position relationship between the image acquisition module and the visible light cut-off filter in the vein image capturing device of the present invention.

Fig. 3 is a schematic diagram of the position distribution of the near-infrared light emitting diodes in the near-infrared light source module in the vein image capturing device of the present invention.

Fig. 4 is a schematic circuit diagram of the near-infrared light source module in the vein image capturing device according to the present invention.

Reference numerals

1 concave groove

2 near infrared light source module

3 image acquisition module

4 support

5 display module

6 near-infrared imaging lens

7 near-infrared band-pass filter

8 near-infrared image sensor

9 visible light cut-off filter

Detailed Description

In order to clearly understand the technical contents of the present invention, the following embodiments are specifically illustrated in detail.

Referring to fig. 1 to 4, the vein image capturing device includes a near-infrared light source module 2, an image capturing module 3 and a display module 5, wherein the image capturing module 3 is disposed opposite to the infrared light source module, and the display module 5 is connected to the image capturing module 3.

The image acquisition module 3 can irradiate the arm according to the near infrared light emitted by the near infrared light source module 2, and acquires an arm vein image by using the absorption intensity difference of the arm vein and other parts on the near infrared light; the display module 5 can be composed of a display screen and is used for displaying the captured arm vein so as to be convenient for searching blood vessels during venipuncture.

In this embodiment, the device is further provided with a concave groove 1, and the infrared light source module is located in a concave position of the concave groove 1.

The concave groove 1 can be used for placing an arm, and the infrared light source module in the embodiment is arranged inside the concave groove 1.

In this embodiment, the image acquisition module 3 includes a near-infrared imaging lens 6, a near-infrared band-pass filter 7, and a near-infrared image sensor 8; the near-infrared band-pass filter 7 is arranged between the near-infrared imaging lens 6 and the near-infrared image sensor 8, the near-infrared imaging lens 6 and the infrared light source module are arranged oppositely, and the near-infrared image sensor 8 is connected with the display module 5.

As shown in fig. 2, in this embodiment, the apparatus further includes a visible light cut-off filter 9, where the visible light cut-off filter 9 is disposed on the near-infrared imaging lens 6, i.e., right below the image capture module 3. The visible light cut-off filter 9 can block visible light from entering the image acquisition module 3, protect the image acquisition module 3 and prevent the image acquisition module 3 from being dirty.

In this embodiment, the image acquisition module 3 is located right above the arm to be measured, and in order to prevent light rays in other bands from entering the near-infrared image sensor 8 for imaging, a near-infrared band pass filter 7 which only allows a specific near-infrared band to enter the near-infrared image sensor 8 is disposed between the near-infrared imaging lens 6 and the near-infrared sensor.

In this embodiment, the apparatus further includes a housing, the light emitting portion of the near-infrared light source module 2 and the display portion of the display module 5 are both located on the upper surface of the housing, and the image capturing module 3 is connected to the housing through a bracket 4. Namely, the image acquisition module 3 is fixed by the bracket 4 to be positioned right above the arm vein to be photographed.

In this embodiment, the near-infrared light source module 2 includes a plurality of groups of near-infrared light emitting diode groups, and each group of near-infrared light emitting diode groups includes a plurality of near-infrared light emitting diodes; and the near-infrared light emitting diodes in the near-infrared light source module 2 are uniformly distributed.

In this embodiment, the near infrared led is an infrared led with a peak wavelength of 850nm (such as IR5D850AC of sincheng photo electricity); the plurality of near-infrared light source modules 2 are uniformly distributed in an equilateral triangle distribution mode.

As shown in fig. 4, in this embodiment, the near-infrared light emitting diode groups are connected in parallel and then connected to a power supply through a switch; and a plurality of near infrared light emitting diodes in each group of near infrared light emitting diode groups are connected in series. In the embodiment, the power supply of the dog with the 5V direct-current power supply is selected, and in other embodiments, power supplies with other specifications can be selected according to world use.

As shown in fig. 1, in this embodiment, the near-infrared light source module 2 includes a plurality of near-infrared LEDs, which are respectively disposed in a concave groove for placing an arm, and are arranged in a uniform array. In order to make the illumination intensity reaching the arm more uniform and the illumination area maximum. As shown in fig. 3, the near-infrared leds in the near-infrared light source module 2 are distributed in an equilateral triangle (each dot in the figure represents a near-infrared led), and the connection manner of the near-infrared leds can be seen in fig. 4.

The vein image capturing device in the embodiment can rapidly capture the vein image of the arm, is beneficial to medical staff to find the blood vessel, and improves the efficiency of arm venipuncture.

The working steps and principle of the vein image capturing apparatus in this embodiment are as follows:

s1: when the patient places the arm on the concave groove 1 of the device, the device is started, and the system enters a working state from a dormant state;

s2: the processor drives the active light source to emit near infrared light, and the near infrared light source and the image sensor are respectively positioned on the upper side and the lower side of the arm;

and S3, when the near infrared light irradiates the arm, the near infrared light can be absorbed by hemoglobin in the arm vein, can penetrate other parts in the arm, is focused by the near infrared imaging lens 6, is filtered by the near infrared band-pass filter 7, and is imaged on the image sensor.

S4: because venous blood in the arm absorbs more near infrared light and other parts of the arm absorb less near infrared light, the distribution of venous blood vessels of the arm can be highlighted by utilizing the difference of the absorption intensity of the vein and other parts of the arm to light.

The vein image capturing device in the embodiment captures vein images in a transmission type imaging mode by arranging the image acquisition module and the infrared light source module oppositely; compare with the adoption reflective formation of image mode among the prior art and constitute vein image capture device, the vein that this technique utility model's vein image capture device can catch is more clear.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. A vein image capture device is characterized by comprising a near-infrared light source module, an image acquisition module and a display module, wherein the image acquisition module is arranged opposite to the infrared light source module, and the display module is connected with the image acquisition module;

the device also comprises a shell, wherein the light emitting part of the near-infrared light source module and the display part of the display module are both positioned on the upper surface of the shell, and the image acquisition module is connected with the shell through a support.

2. The vein image capture device according to claim 1, wherein said device further comprises a recessed groove, and said infrared light source module is disposed at a recessed position of said recessed groove.

3. The vein image capture device according to claim 1, wherein the image acquisition module comprises a near-infrared imaging lens, a near-infrared band-pass filter and a near-infrared image sensor; the near-infrared band-pass filter is arranged between the near-infrared imaging lens and the near-infrared image sensor, the near-infrared imaging lens and the infrared light source module are arranged oppositely, and the near-infrared image sensor is connected with the display module.

4. A vein image capture device according to claim 3 further comprising a visible light cut-off filter, said visible light cut-off filter being disposed on said near-infrared imaging lens.

5. The vein image capturing device according to claim 1, wherein the near-infrared light source module comprises a plurality of groups of near-infrared light emitting diodes, and each group of the groups of near-infrared light emitting diodes comprises a plurality of near-infrared light emitting diodes; and the near-infrared light emitting diodes in the near-infrared light source module are uniformly distributed.

6. The vein image capturing device according to claim 5, wherein said near infrared light emitting diode is constituted by an infrared light emitting diode having a peak wavelength of 850 nm; the plurality of near-infrared light source modules are uniformly distributed in an equilateral triangle distribution mode.

7. The vein image capturing device according to claim 5, wherein the plurality of groups of near infrared light emitting diodes are connected in parallel with each other and then connected to a power supply through a switch; and a plurality of near infrared light emitting diodes in each group of near infrared light emitting diode groups are connected in series.