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A transurethral bladder ultrasound detection method, diagnostic instrument and transducer

A technology of ultrasonic transducer and ultrasonic diagnostic instrument, which is applied in the field of bladder diagnostic instrument, can solve the problems affecting the accuracy of clinical detection and low bladder resolution, and achieve the effect of improving clarity, resolution and signal-to-noise ratio

Active Publication Date: 2018-03-02
上海爱声生物医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The resolution of the existing medical ultrasound detection of bladder is relatively low, which may affect the accuracy of clinical detection. Therefore, it is necessary to propose a bladder ultrasound detection system with improved resolution

Method used

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  • A transurethral bladder ultrasound detection method, diagnostic instrument and transducer
  • A transurethral bladder ultrasound detection method, diagnostic instrument and transducer
  • A transurethral bladder ultrasound detection method, diagnostic instrument and transducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1: Cylindrical Array Intravesical Ultrasound Transducer

[0064] like figure 1 Shown is the schematic diagram of the intravesical ultrasound focusing transducer 11 of the present embodiment, as figure 2 As shown in its cross-sectional view, the intravesical ultrasonic focusing transducer 11 includes a plurality of ultrasonic transducing units, and each ultrasonic transducing unit includes a backing layer 111, a piezoelectric layer 112 and an acoustic matching layer 113 that are closely connected in sequence, The ultrasonic transducer units are arranged 360 degrees around the cylindrical surface, and each ultrasonic transducer is connected to a circuit, and each ultrasonic transducer unit is sequentially excited by the ultrasonic host, so as to realize 360-degree emission and reception of ultrasonic signals.

[0065] In the above embodiment, the material of the piezoelectric layer 112 can be piezoelectric ceramic material, piezoelectric thick film material, pi...

Embodiment 2

[0066] Example 2: Intravesical Ultrasound Focusing Transducer of Cylindrical Array

[0067] This embodiment adds a focusing function on the basis of Embodiment 1, which is to add a focusing unit to each ultrasonic transducing unit. The focusing transducing unit can be a mechanical structure focusing or an electronic focusing, and the mechanical structure focusing can be divided into a whole Acoustic Structure Focusing and Acoustic Lens Focusing.

[0068] like Figure 4 Shown is a schematic diagram of the focused ultrasonic transducer unit of the overall acoustic structure, wherein: the backing layer 111, the piezoelectric layer 112, and the acoustic matching layer 113 all have mechanical curved surfaces, and the radii of curvature of the three can be calculated and summed according to the requirements of the focused sound field. set up. The focus factor K is defined as the ratio of the focal length f to the transducer aperture d, ie: K=f / d. Given the focus factor K and the ...

Embodiment 3

[0071] Embodiment 3: Bladder ultrasonic diagnostic instrument

[0072] like Image 6 As shown, it is a structural schematic diagram of the bladder ultrasonic diagnostic instrument of this embodiment, which includes an ultrasonic catheter 1, a retraction / driving device 2 and an electronic imaging system 3. The front end of the ultrasonic catheter 1 is equipped with an intravesical ultrasonic transducer, and the rear end is Connect the retraction / driving device 2, the retraction / driving device 2 is connected with the electronic imaging system 3, the electronic imaging system 3 is loaded with electronic components for reconstructing images, and reconstructs the cross-sectional image and three-dimensional image of the bladder according to the received ultrasonic signal, so as to Images to judge bladder lesions. Wherein: the intravesical ultrasonic transducer is the intravesical ultrasonic transducer as described in Examples 1 and 2, where the aperture of the ultrasonic transducer...

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Abstract

The invention discloses a transurethral bladder ultrasonic detection method, a diagnostic instrument and a transducer. The method comprises: passing an intravesical ultrasonic transducer with a center frequency of 5 MHz to 20 MHz through an ultrasonic catheter with a diameter of 0.5 mm to 5 mm through the urethra. Send it to the part of the bladder to be tested; transmit and receive ultrasonic signals 360 degrees to the part of the bladder to be tested; and withdraw the ultrasonic transducer in the bladder at the same time. The diagnostic instrument includes: an ultrasonic catheter with a diameter of 0.5mm~5mm, an intravesical ultrasonic transducer with a center frequency of 5MHz~20MHz is installed at the front end, and the back end is connected with a retraction / driving device; the retraction / driving device is connected with an electronic imaging system . The transducer includes: an ultrasonic transducer unit composed of a backing layer, a piezoelectric layer and an acoustic matching layer closely connected in sequence. The invention sends the ultrasonic transducer into the bladder through the urethra, shortens the detection distance, improves the working frequency, and further improves the imaging resolution.

Description

technical field [0001] The invention relates to a bladder diagnostic instrument, in particular to a transurethral bladder ultrasonic detection method, a diagnostic instrument and a transducer. Background technique [0002] The bladder is located at the beginning of the urethra. It is a urine storage organ in the human body. The urine storage capacity can reach 300-500ml. When it is full, the maximum diameter is about 10cm. The diameter of the urethra is about 5mm. Restricted by the diameter of the urethra, the bladder ultrasound diagnostic methods currently used in hospitals usually include transabdominal scanning and transrectal methods. These approaches are blocked by other thicker human tissues. The most frequently used ultrasonography method is the transrectal examination, such as Figure 8 As shown, the ultrasonic catheter sends the transrectal ultrasonic probe 7 to the test site of the bladder 5 through the rectum 6. It can be seen from the figure that the rectum is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/12
Inventor 袁建人黄海涛陈友伟
Owner 上海爱声生物医疗科技有限公司
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