CN204484124U - A kind of vim and vigour harvester guided based on image - Google Patents

Abstract

The utility model discloses a blood gas collection device based on image guidance, which comprises a wrist fixing bracket, an image acquisition module is fixed directly above the wrist fixing bracket, an infrared light source module is fixed directly below the wrist fixing bracket, and the image acquisition module The collected image is sent to the processing module, and the processing module displays the processed result through the display module. The utility model can realize that the medical personnel insert the needle to collect blood gas according to the position information of the radial artery and the guide information on the display module, and know the situation of the needle insertion through the real-time display image. The three cameras collect images of the patient's wrist at the same time, and the data collection is accurate.

Description

A blood gas collection device based on image guidance

technical field

The utility model relates to the technical field of medical equipment, in particular to an image-guided blood gas collection device.

Background technique

Blood gas analysis is a test method commonly used in medicine to judge whether there is an acid-base balance disorder in the body, as well as hypoxia and the degree of hypoxia. Arterial blood gas analysis can accurately reflect the respiratory function and metabolism of the body, diagnose respiratory failure and acid-base balance disorders, and guide oxygen therapy and mechanical ventilation. In blood gas analysis, whether the collection and preservation of blood samples are appropriate has a great influence on the measurement results. Arterial blood is used as the analysis sample for blood gas analysis, and the commonly used arteries for arterial blood collection are the femoral, brachial, and radial arteries. Because the radial artery is superficial, easy to touch, and easy to compress to stop bleeding, blood from the radial artery is often collected for blood gas analysis in actual clinical applications.

For some patients with inconspicuous radial artery, or in the case of inexperienced medical staff, the existing radial artery blood collection device is difficult to collect radial artery blood gas, the success rate of one-time puncture is not high, and the patient feels pain, which is easy to form local Hematoma, ecchymosis.

Utility model content

In order to solve the deficiencies in the prior art, the utility model discloses a blood gas collection device and method based on image guidance. The device is used to determine the position of the radial artery in the patient's wrist, and the nurse is guided to complete the radial artery blood gas collection according to information such as the position of the radial artery. collection.

In order to achieve the above object, the concrete scheme of the present utility model is as follows:

An image-guided blood gas collection device, comprising a wrist fixing bracket, an image acquisition module is arranged above the wrist fixing bracket, the image acquisition module transmits the collected images to a processing module, and the processing module is also connected to an infrared light source module The processing module receives and processes the image information collected by the image acquisition module, and finally outputs the processed information to the display module; the processing module includes a microprocessor and an alarm device, and the microprocessor is also connected to the alarm device. An alarm will be given when the collection vessel is incorrect during blood gas collection.

The processing module includes a microprocessor and an alarm device, and the processing module can receive multiple images of the same area on the radial side of the patient's wrist collected by the image acquisition module with different acquisition angles. The microprocessor uses the blood vessel images in the acquired images to utilize The multi-view 3D reconstruction algorithm restores the thickness and distribution of blood vessels in the patient's wrist, and distinguishes arteries and veins according to the selective absorption of near-infrared light by hemoglobin, and provides position information of the radial artery that is relatively thick and close to the epidermis , to guide blood gas collection. When the direction of needle insertion deviates from the radial artery position provided, the alarm device connected to the microprocessor makes a sound, and transmits error information to the display module for display.

The wrist fixing bracket is hollow cylindrical, and the image acquisition module includes three near-infrared cameras. Three circular holes are arranged directly above the wrist fixing bracket, and a near-infrared camera is embedded in each cavity. A processing module is fixed.

The bottom of the wrist fixing bracket and the image acquisition module are provided with three circular holes, and a near-infrared lamp is embedded in each cavity, and three near-infrared lamps form an infrared light source module; the display module is connected to the processing module through a data transmission line, Fixed on the top of the wrist fixed bracket.

The three near-infrared cameras of the image acquisition module are respectively located above the radial side of the patient's wrist, on the left side of the radial side, and on the right side of the radial side. The three near-infrared cameras are aimed at the same area on the radial side of the patient's wrist to collect The image formed by near-infrared light, according to the characteristic that hemoglobin has obvious selective absorption of near-infrared light, the image formed by the near-infrared light passing through the patient's wrist can clearly reflect the image of the blood vessels in the patient's wrist. Three near-infrared cameras The acquisition area is the same but the acquisition angle is different.

The three near-infrared lamps of the infrared light source module are respectively located on the back of the patient's wrist, on the left side of the back and on the right side of the back, and at the same time irradiate near-infrared light to a certain area on the back of the patient's wrist, because the near-infrared light has a strong Penetration, the near-infrared light penetrates the patient's wrist and enables the image acquisition module located above the radial side of the patient's wrist to clearly collect blood vessel information in the patient's wrist.

A blood gas collection method based on image guidance, comprising the following steps:

Step 1: First fix the patient's wrist with the wrist fixing bracket to prevent it from moving, adjust the angles of the three near-infrared cameras in the image acquisition module to capture the same area on the radial side of the patient's wrist, and adjust the three near-infrared cameras in the infrared light source module The infrared lamp makes it illuminate the same area on the back of the patient's wrist (according to the schematic diagram, the positions of the three light sources are different, but illuminates the same area on the back of the wrist), and the two areas are on the same central axis to ensure that the three near-infrared lamps irradiate The emitted near-infrared light can pass through the patient's wrist and be collected by three near-infrared cameras;

Step 2: The three near-infrared lamps included in the infrared light source module irradiate near-infrared light on the same area on the back of the patient's wrist; and then the three near-infrared cameras included in the image acquisition module collect images of the same area on the radial side of the patient's wrist;

Step 3: The image information collected by the three near-infrared cameras is received by the processing module, and the microprocessor in the processing module processes the image information collected by the three near-infrared cameras in the same area on the radial side of the wrist but at different acquisition angles. Obtain radial artery location information;

Step 4: The display module displays the position information of the radial artery, and displays the wrist image in real time through the image acquisition module;

Step 5: The medical personnel insert the needle to collect blood gas according to the position information of the radial artery on the display module, and know the situation of the needle insertion through the real-time display image.

Step 6: When the needle insertion direction of the medical staff collected by the image acquisition module deviates from the position of the radial artery determined by the processing module, the microprocessor judges that the needle insertion error is wrong, and the alarm device connected to the microprocessor emits a sound, and displays a sound on the display module. Needle insertion error is displayed on the display.

The beneficial effects of the utility model:

The medical personnel insert the needle to collect blood gas according to the radial artery position information and guidance information on the display module, and know the needle insertion situation through the real-time display image. Three near-infrared cameras collect images of the patient's wrist at the same time, and the data collection is accurate.

Description of drawings

Fig. 1 is a functional schematic diagram of an image-guided blood gas collection device provided by an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of an image-guided blood gas collection device provided by an embodiment of the present invention;

In the figure, 103, an image acquisition module, 2, the radial side of the wrist, 102, a near-infrared light source module, 101, a wrist fixing bracket, 5, an arm, 104, a processing module, and 105, a display module.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is described in detail:

As shown in Figure 1-2, the embodiment of the utility model provides an image-guided blood gas collection device. include:

101, wrist fixing support.

Among them, the patient's wrist, the image acquisition module and the near-infrared light source module are fixed.

Specifically, the patient's wrist is fixed by the bracket to prevent the wrist from moving; the image acquisition module and the near-infrared light source module are fixed by the bracket to prevent the displacement of each module during the image acquisition, processing and display process. The image acquisition module is located above the wrist fixing bracket, and the infrared light source module is located below the wrist fixing bracket. After the wrist of the person to collect blood gas is fixed by the wrist fixing bracket, the radial side of the wrist 2 faces upward.

102. A near-infrared light source module.

Wherein, the near-infrared light source module emits near-infrared light.

Specifically, the near-infrared light source module includes three near-infrared lamps, which irradiate a certain area on the back of the patient's wrist.

103. An image acquisition module.

Wherein, what is collected is the image of the radial side of the patient's wrist.

Specifically, the image acquisition module includes three near-infrared cameras, the lenses of which are respectively aligned and focused on the acquisition area to be needled on the radial side 2 of the patient's wrist, and ensure that the three near-infrared cameras can collect images from the three near-infrared cameras on the back of the wrist. The near-infrared light transmitted by the infrared lamp through the wrist includes the influence of the blood vessels in the wrist.

104. A processing module.

Wherein, what is processed is the image collected by the image acquisition module. The processing module contains a microprocessor and an alarm device.

Specifically, the microprocessor in the processing module receives the images of the radial side of the wrist collected by the three near-infrared cameras in the image collection module. The microprocessor performs multi-view three-dimensional reconstruction calculations on the images of the same area but different acquisition angles collected by the three near-infrared cameras. Since the near-infrared light source passes through the wrist and is collected by the near-infrared camera, the collected images contain clear and rich blood vessel images. The three near-infrared cameras collect the same area but due to different collection angles, each camera can collect The same blood vessels, but the distribution of blood vessels and the position in the image are deviated due to different angles. Through these deviations, the multi-view 3D reconstruction algorithm can be used to expand the collected 2D position information of blood vessels to 3D position information , to restore the distribution of blood vessels in the wrist. Then judge the thickness of the blood vessel, and distinguish the arterial blood vessel from the venous blood vessel according to the difference in the absorption rate of hemoglobin to near-infrared light caused by the difference of oxygenated hemoglobin in the arterial blood and venous blood, and combine the three-dimensional position information of the blood vessel, the thickness information and the judgment of the arterial blood vessel , output the three-dimensional position information of the closest and thicker arterial vessel to the display module. When the doctor confirms that blood gas collection will be performed on the arterial vessel, the processing module will fix the three-dimensional position information of the blood vessel, and call the image acquisition module to collect the doctor's needle insertion situation in real time and output the image to the display module. When the medical staff collects blood gas, the microprocessor obtains the needle insertion direction of the medical staff through the image acquisition module. When the needle insertion direction deviates from the position of the radial artery judged by the processing module, the alarm device connected to the microprocessor emits a sound, and Transfer error information to display module.

105. A display module.

Among them, the three-dimensional position information of the wrist artery obtained from the processing module is displayed. When the doctor decides to insert a needle into the blood vessel to collect blood gas, the three-dimensional position information of the blood vessel is fixedly displayed and then the real-time image of the needle is displayed. The doctor can According to the real-time image and the three-dimensional position information of the blood vessel when the needle is inserted, the needle is corrected to guide the needle. When the doctor inserts the needle incorrectly, the display module displays an error message.

Working principle: The near-infrared light source module includes three near-infrared lamps. The near-infrared light source illuminates the back of the wrist to provide near-infrared light for the image acquisition module; the image acquisition module transmits the near-infrared light from the back of the wrist to the radial side of the wrist. Collect the influence of blood vessels in the wrist; the three near-infrared cameras included in the image collection module collect the image information of the same position on the radial side of the wrist to be collected; the processing module uses multi-view 3D reconstruction according to the same collection area and different collection angles Through analysis and processing, the three-dimensional position information of blood vessels can be obtained. Using image processing technology, according to the difference in the absorption rate of near-infrared light caused by the difference in the oxygen content of hemoglobin in venous blood and arterial blood, the wrist can be calibrated in the collected images. According to the three-dimensional position information of the blood vessels and the thickness of the blood vessels, the thicker arterial vessels closest to the radial skin of the wrist are selected, and the three-dimensional position information is displayed by the display module. When the doctor decides to insert a needle into the blood vessel to collect blood gas, the display module fixedly displays the three-dimensional position information of the blood vessel, and displays the doctor's needle insertion situation in real time, so that the doctor can make corrections based on the three-dimensional position information and the needle insertion situation. When the position of the radial artery obtained by the microprocessor in real time deviates from the position of the determined radial artery, an alarm device connected to the microprocessor emits a sound, and the display module displays error messages.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (5)

1. An image-guided blood gas collection device, characterized in that it comprises a wrist fixing bracket, an image acquisition module is arranged above the wrist fixing bracket, and the image acquisition module transmits the image collected to a processing module, and the processing module Also connected to the infrared light source module, the processing module receives and processes the image information collected by the image acquisition module, and finally outputs the processed information to the display module; the processing module includes a microprocessor and an alarm device, and the microprocessor is also in communication with the connected to the alarm device. 2. A kind of blood gas collection device based on image guidance as claimed in claim 1, it is characterized in that, described wrist fixed support is hollow cylindrical shape, and image acquisition module comprises three near-infrared cameras, and the front of wrist fixed support There are three circular holes on the top, a near-infrared camera is embedded in each hole, and a processing module is fixed behind the image acquisition module. 3. The image-guided blood gas collection device according to claim 1, wherein three circular holes are arranged under the wrist fixing bracket and directly below the image collection module, and each hole is embedded with a Near-infrared lamps, three near-infrared lamps constitute an infrared light source module; the display module is connected to the processing module through a data transmission line, and is fixed above the wrist fixing bracket. 4. A blood gas collection device based on image guidance as claimed in claim 1, wherein the three near-infrared cameras of the image collection module are respectively located above the radial side of the patient's wrist, on the left side of the radial side and on the radial side On the right, three near-infrared cameras are aimed at the same area on the radial side of the patient's wrist to collect images formed by near-infrared light penetrating the patient's wrist. The three near-infrared cameras have the same collection area but different collection angles. 5. The image-guided blood gas collection device according to claim 1, wherein the three near-infrared lamps of the infrared light source module are respectively located above the back of the patient's wrist, on the left side of the back side and on the right side of the back side, At the same time, near-infrared light is shone on an area on the back of the patient's wrist.