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prostate stent

A prostate and memory alloy technology, applied in the field of prostate stents, can solve problems such as prostatic hypertrophy, displacement, and difficulty in taking out the stent, and achieve the effect of solving prostatic hypertrophy and difficult displacement

Active Publication Date: 2018-09-11
SHANGHAI RAYKEEN LASER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the stent is placed in the human body for a long time, there will be a problem of displacement on the one hand, making it difficult to take out the stent; on the other hand, the above-mentioned prostate stent cannot fundamentally solve the problem of prostatic hypertrophy. After a period of time, the patient needs to re-insert the stent

Method used

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Embodiment Construction

[0042] The present invention adopts memory alloy in the position of benign prostatic hyperplasia, and the memory alloy can be stretched under the action of elastic restoring force to break the hyperplasia part. After the prostate stent is removed, it will not squeeze the urethra again.

[0043] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0044] figure 1 It is a schematic cross-sectional structure diagram of the initial state of the prostate stent in an embodiment of the present invention after being inserted into the human urethra; figure 2 yes figure 1 Schematic diagram of the structure of memory alloy in free state; image 3 yes figure 1 Schematic diagram of the cross-sectional structure of the prostate stent in , which is rotated by an angle in the axial direction.

[0045] Refer ...

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Abstract

A prostate stent, which is set to include: an inner tube body and an outer sleeve that are nested with each other and can slide back and forth relative to each other, and a memory alloy at the junction of the two, and the junction corresponds to the human prostate urethra after the stent is placed; the memory alloy The first end is fixed on the inner tube body, and as the outer sleeve slides back and forth on the inner tube body, the second end of the memory alloy drives the memory alloy to be in a stretched or compressed state. When the stent is placed, the memory alloy is covered on the inner tube as a whole, and is in a state of compression deformation; after being inserted into the human urethra, the outer sleeve is operated to make the memory alloy in a stretched state, and the stretched memory alloy is located at the prostatic urethra. , so it can break the prostatic hyperplasia part; after the stent is left in the human body for a period of time, the ruptured proliferative flaps will be necrotic due to ischemia, which can fundamentally solve the problem of prostatic hypertrophy.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a prostate stent. Background technique [0002] Prostatic hypertrophy often occurs in the elderly in early years. In recent years, as people have been sedentary at work and their eating habits have changed, enlarged prostates have become more and more common in middle-aged and even young people. Due to the hyperplasia and hypertrophy of the prostate gland, it squeezes the urethra, which will cause difficulty in urinating, and also cause problems such as urethral stones, which will bring pain to the patient. [0003] In order to solve the above-mentioned problems, in the prior art, a prostatic stent is generally installed on the prostatic hypertrophy to expand the urethra to solve the problem of dysuria. However, if the stent is placed in the human body for a long time, there will be a displacement problem, which makes it difficult to take out the stent. Second, the abov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/852A61B17/12
Inventor 夏术阶高仁伟
Owner SHANGHAI RAYKEEN LASER TECH CO LTD
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