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A prostate puncture kit

A puncture kit, prostate technology, applied in the field of medical instruments, can solve the problems of low cancer detection sensitivity, low soft tissue discrimination, limited ultrasonic image resolution, etc. Effect

Active Publication Date: 2019-08-06
BEIJING L H H MEDICAL SCI DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ultrasound imaging is fast. Although it can be imaged in real time during the operation, due to the limited resolution of ultrasound images, the distinction between soft tissues in the image is not high. Tissues are pinpointed precisely, resulting in a purely ultrasound-based sampling method that is not very sensitive for cancer detection, only 60% to 85%

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] The improvement of the present invention on the puncture kit with the ultrasonic transducer mainly includes two aspects.

[0033] Puncture set structure improvement

[0034] Analysis of the operation process:

[0035] During the operation, the patient lies flat, and the interventional doctor passes the rectal puncture kit through the rectum and enters the prostate. At around 6.5MHz, since the preoperative doctor has obtained the position of the lesion area in the medical imaging modality equipment, the interventional doctor selects the area of ​​interest based on experience to give needles, and divides the whole prostate into six parts equally (the top of the prostate, the Middle and bottom, left and right sides) is improved to only select points for puncture on the diseased tissue in the above-mentioned region of interest, ...

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Abstract

Disclosed is a prostate puncture kit (41). A high-precision electromagnetic positioner is used to track an ultrasonic transducer (45) and a puncture needle (40) in real time to guide prostate puncturing. The kit (41) is a flexible cylindrical pipeline. If no force exists on a tail end (47) of the pipeline or if the force is parallel to a far-side end portion axis (46), a far-side end portion and a near-side end portion of a connection part of the flexible cylindrical pipeline align, and the far-side end portion axis (46) aligns with an axis (52) of a far-side portion of the flexible cylindrical pipeline. On the contrary, if an asymmetric force exists on the tail end, these two axes do not align. Once the axes align, the ultrasonic transducer (45) can carry out an operation, and tension on a contact force sensor (43) can be read so as to establish a tissue structure and create a contact force. Thus, the prostate puncture kit is used for accurately determining a spatial position of the puncture needle, and provides higher-quality targeted guided puncture by means of multi-modal medical image registration and fusion techniques, in combination with the diagnostic advantage of a preoperative MRI image and the real-time guide advantage of a TRUS image.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to a prostate puncture kit. Background technique [0002] Prostate cancer is one of the most common cancers in men and the second deadliest among non-skin cancers. Currently, the most popular method of prostate cancer screening is serum prostate-specific antigen screening, followed by six or more biopsies guided by real-time 2D transrectal ultrasound. As part of this procedure, the prostate is usually divided into 6 equal volume regions. One or more biopsies were taken from each of these six regions in a systematic, but essentially non-directional fashion. This procedure is called a sextant biopsy. [0003] Sextant biopsy is widely used because of its low cost and simplicity relative to other methods of detecting prostate cancer. However, sextant biopsies have been shown to have severe false negative rates and can be inaccurate with respect to the true location of the biopsy. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B10/02A61B17/34A61B90/00
CPCA61B10/0241A61B17/3403A61B2017/3413
Inventor 叶慧
Owner BEIJING L H H MEDICAL SCI DEV
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