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Degradable prostate stent

A technology of prostate and prostate body, applied in the field of prostate stents, can solve problems such as damaged vas deferens, relatively high physical requirements of patients, and large trauma, and achieve the effects of increasing hydrogen evolution corrosion speed, saving medical resources, and easy degradation

Inactive Publication Date: 2016-06-29
杨首男
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, the treatment method of transurethral resection of the prostate is the gold standard for the treatment of BPH based on its own advantages, but this treatment method is invasive treatment, mainly by removing a part of the patient's prostate gland and enlarging the urethra to achieve treatment. For the purpose of this method, this method has a large trauma and requires relatively high physical fitness of the patient. For some elderly patients, it is difficult to bear the trauma caused by this method, and there is a greater risk. It is long, which further increases the pain of the recipient, and the risk of surgical treatment is high, and it is easy to bring sequelae to the patient. Statistics show that after 10% of the patients received surgical treatment, the vas deferens were damaged to varying degrees.

Method used

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Effect test

Embodiment 1

[0018] Such as figure 1 As shown, the present invention provides a degradable prostate stent, comprising: a net-shaped cylindrical stent body 1, and the stent body 1 is made of a degradable polymer material. The iron-based material is pure iron, Fe-Mn, Fe-Mn-C, Fe-Mn-S, Fe-Mn-Pt alloy system and other biodegradable iron-based alloys; the degradable polymer material It is one of polylactic acid (PLA), polycaprolactone (PCL), polylactic acid-glycolic acid copolymer (PLGA), polyhydroxyalkanoate (PHA) or polyacrylate (PEA) containing ester bonds or any combination of them.

[0019] The matrix of the prostate stent is completely consistent with the existing coronary stent matrix. By setting the stent body 1 made of degradable polymer materials, we can increase the practicability of the stent, prolong the service time of the stent, and in the process of decomposition During the process, it is safer for the patient. In addition, the polymer material is decomposed into small molecul...

Embodiment 2

[0021] On the basis of Example 1, the prostate stent is made of an iron-based alloy, and the outer surface of the stent is covered with a degradable polymer material, which degrades in a physiological environment, wherein the degradation of the ester bond produces acidic The carboxyl group reduces the pH value of the local microenvironment, thereby increasing the hydrogen evolution corrosion rate of the iron-based alloy and increasing the corrosion / degradation rate of the iron-based alloy in the physiological environment of the human body.

Embodiment 3

[0023] A net-shaped cylindrical iron alloy stent body 1, the surface of the stent body 1 is covered with a degradable polymer material, the stent body 1 includes a first stent and a second stent, (corresponding drawings are not shown) The first bracket and the second bracket are connected by a connecting wire. This design can facilitate the fixation of the bracket body 1, and the connecting wire passing through the sphincter will not cause the patient to feel a foreign body sensation. The connection in the preferred technical solution Silk is a degradable material. After the stent is introduced into the human body, the second stent only plays a role of fixing. After the first stent is sent to the prostate of the human body, the connecting silk will degrade in a short time, so that the second stent Two stents are excreted from the body.

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Abstract

The invention relates to a degradable prostate stent, which comprises a meshed cylindrical stent main body, wherein the stent main body is made from a degradable high polymer material. The degradable prostate stent disclosed by the invention has the beneficial effects that since the stent main body is made from the degradable high polymer material, the degradable prostate stent can conduct conservative treatment on some patients with prostatitis, and the stent is introduced to the location of enlarged prostate and then the stent is expanded for supporting the location of enlarged prostate; moreover, the device, which is degradable in human body within a certain time, is unnecessary to be taken out by special operations, so that pain in patients is relieved, and medical resources are saved at the same time; and in addition, the degradable stent designed by the invention, which can flow out along with urine, is safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a degradable prostate bracket. Background technique [0002] Benign prostatic hyperplasia (benign prostatic hyperplasia BPH) is a common disease in elderly men, is a progressive disease. With the development of population aging, the incidence rate increases year by year. According to relevant statistics in China, the incidence rate of males in their 50s is more than 50%, and it can reach 90% when they are 80 years old. The incidence of BPH is increasing day by day, and it has become the most common disease in urology. Due to the high incidence and serious impact on the quality of life, treatment has always been one of the focuses of clinical research. Due to the improvement of medical level, the number of elderly patients with benign prostatic hyperplasia combined with basic diseases of heart, brain, lung, kidney and other organs is gradually increasing. F...

Claims

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Application Information

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IPC IPC(8): A61F2/90A61L31/14A61L31/04A61L31/06A61L31/08A61L31/10
CPCA61F2/90A61L31/048A61L31/06A61L31/088A61L31/10A61L31/148
Inventor 杨首男
Owner 杨首男
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