A visual positioning device for puncturing blood vessels under ultrasound guidance

Abstract

The present invention discloses a visual positioning device for puncturing a blood vessel under ultrasound guidance, comprising a display, a transmission line connected to a serial port connector of the display, and a handheld seat installed at one end of the transmission line; an ultrasonic array probe module is arranged at the lower end of the handheld seat, a development board is arranged in the handheld seat, a serial port connector is arranged on one side of the handheld seat, and the transmission line is connected to the signal output end of the serial port connector; a signal processing output module is arranged on the development board. Through the visual positioning device, the puncture point and puncture depth are accurately located, and the operator's needle insertion angle and depth errors during puncture are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of punctured blood vessel positioning, and in particular relates to a visualized positioning device for punctured blood vessels under ultrasound guidance. Background Art

[0002] In current medical practice, radial artery puncture is a common but challenging operation. Traditional puncture methods rely on the doctor's experience and feel, which greatly limits the accuracy and safety of the puncture. In order to improve the puncture effect, some auxiliary positioning tools have appeared on the market, but most of these tools have single functions and cannot be closely combined with advanced ultrasound imaging technology, thus limiting their effectiveness in practical applications. Summary of the invention

[0003] The purpose of the present invention is to provide a visual positioning device for puncturing a blood vessel under ultrasound guidance, so as to solve the problems existing in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solution: a visual positioning device for puncturing a blood vessel under ultrasound guidance, comprising a display, a transmission line connected to a serial port connector of the display, and a handheld seat installed at one end of the transmission line;

[0005] An ultrasonic array probe module is arranged at the lower end of the handheld seat, a development board is arranged inside the handheld seat, a serial port connector is arranged at one side of the handheld seat, and the transmission line is connected to the signal output end of the serial port connector;

[0006] The development board is provided with a signal processing output module, which is used to receive in real time an ultrasonic image composed of ultrasonic feed points input by the ultrasonic array probe module in real time, and to clarify the ultrasonic image. The clarified ultrasonic image is subjected to puncture point scanning and analysis to obtain the correct puncture point. In this process, the processing process is characterized and simulated and displayed on the display.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] The visualized positioning device for puncturing a blood vessel under ultrasound guidance in the present invention can accurately locate the puncture point and puncture depth through the visualized positioning device, thereby reducing the error of the operator in the needle insertion angle and depth during puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view schematic diagram of the present invention;

[0010] Figure 2 It is a partial cutaway schematic diagram of the hand-held seat in the present invention;

[0011] Figure 3It is a schematic diagram of the distribution of each ultrasonic probe in the ultrasonic array probe module of the present invention;

[0012] Figure 4 It is a schematic diagram of the distribution of modules in the development board of the present invention.

[0013] In the figure: 1 display, 2 handle 1, 4 hand-held holder, 5 handle 2, 6 development board, 7 serial port connector, 8 transmission line, 9 ultrasonic array probe module. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] See also Figure 1 , Figure 2 and Figure 3 , a visual positioning device for puncturing a blood vessel under ultrasound guidance, characterized by: comprising a display 1, a transmission line 8 connected to a serial port connector of the display 1, and a handheld seat 4 installed at one end of the transmission line 8;

[0016] The lower end of the hand-held seat 4 is embedded with an ultrasonic array probe module 9, the top of the hand-held seat 4 is fixed with a development board 6 through an insulating pad screw, the left side of the hand-held seat 4 is fixed with a serial port connector 7 and a transmission line 8 is connected to the signal output end of the serial port connector 7;

[0017] The development board 6 is provided with a signal processing output module, which is used to receive in real time an ultrasonic image composed of ultrasonic feed points input by the ultrasonic array probe module 9 in real time, and to clarify the ultrasonic image. The clarified ultrasonic image is subjected to puncture point scanning and analysis to obtain the correct puncture point. In this process, the processing process is characterized and simulated and displayed on the display 1.

[0018] See also Figure 1 , Figure 2 , the top bolt of the display 1 fixes the handle 1, and the top bolt of the hand-held seat 4 fixes the handle 2 5.

[0019] This setting makes the entire device more convenient to carry.

[0020] See also Figure 3 The ultrasonic array probe module 9 is connected to each ultrasonic probe using a 13-wire serial line, and each ultrasonic probe is embedded on the panel.

[0021] See also Figure 4The signal processing output module includes an ultrasonic image signal receiving module, which is used to receive in real time the ultrasonic image composed of ultrasonic feed points input by the ultrasonic array probe module 9; the ultrasonic image signal receiving module is connected to an image denoising and clear processing module, which is used to perform millisecond binarization denoising on the ultrasonic image. Under such a setting, the noise and frame loss in the processed ultrasonic image can be effectively removed, which is conducive to the subsequent capture of the penetration control image; the image denoising and clear processing module is connected to a scanning capture module, which is used to release the capture factor, and the capture factor is used to process the denoised image. The image is used to capture the penetration hole, wherein during the capture process, the capture factor is released from the entire interface, the capture factor is retained at the black spot of the image, and the capture factor at the bright spot is removed; the scanning capture module is connected to the sampling analysis module, and the sampling analysis module is used to compare the captured penetration hole image with the real puncture hole image to remove the non-puncture hole position. After capturing multiple possible puncture hole positions, the device will perform in-depth sampling data analysis on the images of these areas, and use the residual value approach algorithm to calculate the curvature and interval diameter of the outer cross-section of the penetration hole, and compare the calculated parameters item by item with the real puncture hole image, so as to accurately identify and confirm the real puncture hole position;

[0022] The real puncture hole image is to place the puncture holes according to the direction and position of the penetration holes. During this period, the residual value approach algorithm is also used to calculate the curvature and interval diameter of the outer cross-section of the puncture holes at this time; secondly, the puncture hole sample is screened from the image database through feature correspondence method to select puncture holes whose configuration features are relatively close to the penetration holes.

[0023] The sampling analysis module is connected to a scanning confirmation module, which is used to combine the real-time input ultrasound images in time periods and perform full-position scanning on the combined ultrasound images to confirm the puncture hole position. In this process, the overlapping ultrasound images are removed in a single layer, and the direction of the ultrasound images is adjusted using the overlapping penetration hole point-to-point method so that the ultrasound images form a relatively complete image. The center of the ultrasound image that constitutes the whole is used as the scanning center to scan the entire image and determine the puncture hole. The scanning confirmation module is connected to an indicator point output module, which is used to simulate a circle mark on the confirmed puncture hole position.

[0024] See also Figure 4The image denoising and clear processing module, the scanning and capturing module, the sampling analysis module and the indicator point output module are connected to the mapping signal processing module, and the mapping signal processing module is connected to the display feature simulation processing module. The mapping signal processing module is used to virtually process the processing process and results of the image denoising and clear processing module, the scanning and capturing module, the sampling analysis module and the indicator point output module to the display feature simulation processing module, and the display feature simulation processing module characterizes the processing process and results and inputs them to the display 1 in real time for display.

[0025] The working principle of this embodiment is as follows:

[0026] It is only necessary to hold the handle 2 5 and bring the patient's body area coated with the coupling liquid into contact with the ultrasonic array probe module 9. The ultrasonic array probe module 9 inputs the ultrasonic image composed of ultrasonic feeding points in real time, and performs a clear processing on the ultrasonic image. The puncture point scanning and analysis of the cleared ultrasonic image is performed to obtain the correct puncture point. In this process, the processing process is characterized and simulated and displayed on the display 1. During the puncture needle puncture process, the puncture hole position displayed on the display 1 is used to guide the change of the needle insertion angle and the insertion depth; the puncture point and the puncture depth are accurately located through the visual positioning device, thereby reducing the operator's needle insertion angle and depth errors during puncture.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A visual positioning device for puncturing a blood vessel under ultrasound guidance, characterized in that: It comprises a display (1), a transmission line (8) connected to a serial port connector of the display (1), and a handheld seat (4) installed at one end of the transmission line (8); An ultrasonic array probe module (9) is arranged at the lower end of the handheld seat (4), a development board (6) is arranged inside the handheld seat (4), a serial port connector (7) is arranged on one side of the handheld seat (4), and the transmission line (8) is connected to the signal output end of the serial port connector (7); The development board (6) is provided with a signal processing output module, which is used to receive in real time an ultrasonic image composed of ultrasonic feed points input by the ultrasonic array probe module (9) in real time, and to perform a clear processing on the ultrasonic image, and to perform a puncture point scanning and analysis on the cleared ultrasonic image to obtain a correct puncture point. In this process, the processing process is characterized and simulated and displayed on the display (1).

2. The visualization positioning device for puncturing a blood vessel under ultrasound guidance according to claim 1, characterized in that: The top of the display (1) is provided with a handle one (1), and the top of the hand-held seat (4) is provided with a handle two (5).

3. The visual positioning device for puncturing a blood vessel under ultrasound guidance according to claim 2, characterized in that: The ultrasonic array probe module (9) is connected to each ultrasonic probe using a 13-wire serial line, and each ultrasonic probe is embedded on the panel.

4. The visual positioning device for puncturing a blood vessel under ultrasound guidance according to claim 3, characterized in that: The signal processing output module comprises an ultrasonic image signal receiving module, the ultrasonic image signal receiving module is used to receive in real time the ultrasonic image composed of ultrasonic feed points input by the ultrasonic array probe module (9); the ultrasonic image signal receiving module is connected to an image denoising and clear processing module, the image denoising and clear processing module is used to perform millisecond binarization denoising processing on the ultrasonic image; the image denoising and clear processing module is connected to a scanning and capturing module, the scanning and capturing module is used to release the capturing factor, and use the capturing factor to perform penetration hole capturing on the denoised image; the scanning and capturing module is connected to a sampling analysis module, the sampling analysis module is used to perform feature comparison between the captured penetration hole image and the real puncture hole image, and remove the non-puncture hole position; the sampling analysis module is connected to a scanning confirmation module, the scanning confirmation module is used to combine the ultrasonic image input in real time, and perform full-position scanning on the combined ultrasonic image to confirm the puncture hole position; the scanning confirmation module is connected to an indicator point output module, the indicator point output module is used to simulate a circle mark on the confirmed puncture hole position.

5. The visual positioning device for puncturing a blood vessel under ultrasound guidance according to claim 4, characterized in that: The image denoising and clear processing module, the scanning and capturing module, the sampling and analysis module and the indicator point output module are connected to a mapping signal processing module, and the mapping signal processing module is connected to a display feature simulation processing module. The mapping signal processing module is used to virtually process the processing process and results of the image denoising and clear processing module, the scanning and capturing module, the sampling and analysis module and the indicator point output module to the display feature simulation processing module, and the display feature simulation processing module characterizes the processing process and results and inputs them to a display (1) in real time for display.

Images