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A method for constructing a segmental individualized human urethral tissue solid model

A segmental, urethral technology, applied in the medical field, can solve the problems of low resolution of soft tissue structure, lack of individualized human urethral tissue digital model and physical model construction method, and inability to achieve full coverage of patients.

Active Publication Date: 2018-01-05
SHANGHAI SIXTH PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although enhanced CT has many advantages such as ultra-high resolution and thin-slice imaging, it is limited by its low resolution of soft tissue structure. Effective acquisition of image information of cavernous tissue
Although MRI technology can have a better display effect on soft tissues, its imaging effect is slightly lower than that of MDCT.
More importantly, due to the characteristics of MRI, its scope of application is limited to a certain extent, and it is impossible to cover all patients
[0005] Therefore, there is a lack of effective individualized human urethral tissue digital models and methods for constructing physical models in the prior art

Method used

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  • A method for constructing a segmental individualized human urethral tissue solid model
  • A method for constructing a segmental individualized human urethral tissue solid model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In step 1.1, the patient to be tested is placed in a supine position, and the penis-scrotum area and the external urethral orifice area are disinfected.

[0043] Stretch the penis in a weak state, and inject 10ml of tetracaine mucilage from the outer opening of the urethra to block the outer opening of the urethra and prevent the glue from overflowing.

[0044] Step 1.2, using Toshiba Aplio500 ultrasonic diagnostic instrument, probe model PLT-1204MV (center frequency 14MHz). Place the ultrasound probe at the penis-scrotum junction to observe the condition of the urethral lumen.

[0045] If the ultrasound finds that the urethral lumen is not fully opened, or the opening is not satisfactory. You can continue to inject tetracaine glue until the inner diameter of the urethra is greater than 8mm.

[0046] Such as figure 1 As shown in , the dynamic scanning mode is used to scan the urethra and its surrounding tissues to obtain coronal urethral image information. The data ...

Embodiment 2

[0054] In step 1.1, the patient to be tested is placed in a supine position, and the perineal area and the external opening of the urethra are disinfected.

[0055] Stretch the penis in a weak state, inject normal saline into the bladder from the external opening of the urethra until the patient has a strong desire to urinate, and at the same time continue to inject 10ml from the external opening of the urethra to block the external opening of the urethra to prevent the solution from overflowing.

[0056] Step 1.2, using Toshiba Aplio500 ultrasonic diagnostic instrument, probe model PLT-1204MV (center frequency 14MHz). Place the ultrasound probe in the perineum to observe the condition of the urethral lumen.

[0057] If the ultrasound finds that the urethral lumen is not fully opened, or the opening is not satisfactory. You can continue to inject additional saline until the inner diameter of the urethra is greater than 8mm. If repeated operations fail to further open the ure...

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Abstract

The invention discloses a method for constructing a segmental individual human urethral tissue entity model. The method comprises the following steps: obtaining thin-layer penis overall iconography information of a patient by utilizing the three-dimensional ultrasonic technique; screening out an image area to be constructed in the overall iconography information by utilizing a manual drawing method; carrying out three-dimensional reconstruction and processing on the image area to be constructed by utilizing the three-dimension technique, and constructing an individual urethra three-dimensional digital module capable of allowing 360-degree observation; and leading the individual urethra three-dimensional digital module to a three-dimensional printer for printing and obtaining the segmental individual urethral entity model. According to the technical scheme, the constructed entity model is fit with a physiological anatomic position structure of a normal human urethra, and meets individual characteristics of patients.

Description

technical field [0001] The invention belongs to the field of medical technology, and relates to a method for constructing a medical human tissue solid model, in particular to a method for constructing a segmental individualized human urethral tissue solid model by using three-dimensional ultrasonic imaging tools and three-dimensional printing technology. Background technique [0002] In the past ten years, the attention paid to the treatment of urethral stricture in complicated cases is showing a trend of continuous heating up. Although the current clinical gold standard for urethral repair and replacement surgery is still to use various autologous tissues such as penile flap, buccal mucosa, tongue mucosa and even colonic mucosa for reconstruction. However, the introduction of the concept of tissue engineering in this field has caused more and more impact on the status of this gold standard. A series of successful reports of basic and clinical research at home and abroad sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/30
CPCG09B23/30
Inventor 冯超李喆吕向国陈磊胡兵徐月敏王华平傅强
Owner SHANGHAI SIXTH PEOPLES HOSPITAL
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