WO2015024481A1 - 防堵塞导尿管 - Google Patents

防堵塞导尿管 Download PDF

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Publication number
WO2015024481A1
WO2015024481A1 PCT/CN2014/084475 CN2014084475W WO2015024481A1 WO 2015024481 A1 WO2015024481 A1 WO 2015024481A1 CN 2014084475 W CN2014084475 W CN 2014084475W WO 2015024481 A1 WO2015024481 A1 WO 2015024481A1
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WIPO (PCT)
Prior art keywords
bladder
catheter
balloon
chamber
tube body
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PCT/CN2014/084475
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English (en)
French (fr)
Inventor
秦晓健
叶定伟
Original Assignee
复旦大学附属肿瘤医院
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Publication of WO2015024481A1 publication Critical patent/WO2015024481A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0082—Catheter tip comprising a tool
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections

Definitions

  • the present invention is in the field of medical surgical instruments and, more particularly, to a filter-type anti-clogging catheter.
  • intravesical hemorrhage, bladder stones and bladder spasm are important causes of catheter obstruction; the existing catheter drainage port has a limited aperture and number, and effective drainage channels are often susceptible to blood clots, stones and even sputum.
  • the bladder mucosa is clogged, causing poor drainage.
  • patients with bladder hemorrhage forming blood clots or bladder stones if the bladder is not flushed or flushed in time, it may cause blockage of the catheter and may be life-threatening.
  • patients with catheterization are prone to bladder spasm, leading to clogging of the catheter, drainage is not smooth, frequent bladder irrigation and replacement of the catheter will not only pose a safety hazard to the patient, but also increase the daily workload of the medical workers.
  • the object of the present invention is to provide a filter-type anti-clogging catheter suitable for patients with blood clots formed by bladder hemorrhage, patients with bladder stones, and general catheterization to prevent clogging of the catheter caused by bladder spasm. .
  • an anti-clogging catheter including a tube body and an air bag, the air bag being disposed at a portion of the tube body near the tail end, wherein the outer side of the air bag is provided with a filter net, The filter covers the end of the tube.
  • the anti-clogging catheter can be made into various specifications according to actual needs, for example, the anti-clogging catheter can be made into a double-cavity catheter or a three-chamber catheter or the like.
  • the tube body is a double lumen tube body, and includes a drainage chamber and an air balloon chamber.
  • the tube body is a three-chamber tube body, including a drainage chamber, an air balloon chamber and a Flush the chamber.
  • the balloon is spherical in the open state and has a fixing function to prevent the catheter from falling off.
  • the filter has an oval shape in an open state, and has a smooth surface and a filtering effect, and has biocompatibility, hydrophilicity, flexibility, kink resistance and good elasticity; It is fully filled in the inside of the bladder, has a filtering effect on intravesical hemorrhage, etc., and can effectively prevent an obstruction catheter such as a blood clot formed by internal bleeding, and at the same time, can smoothly flush the blood into the bladder to wash the blood clot.
  • an obstruction catheter such as a blood clot formed by internal bleeding
  • the tube body is made of a rubber, latex or silica gel material.
  • the anti-clogging catheter is prepared by using silica gel, has almost no stimulation, has good biocompatibility, has no foreign body sensation, and is non-toxic and non-corrosive; the silicone balloon catheter The intubation process has less damage to the urethral mucosa and a lower incidence of hematuria. It also avoids the feeling of discomfort and pain during the indwelling catheter, significantly reduces the patient's overflow of urine, urinary tract burning and anxiety, and effectively prevents hemorrhage in the bladder. The block leads to an obstruction catheter.
  • the balloon is placed in the patient's bladder, the catheter is fixed, the irrigation fluid is injected into the drainage lumen and/or the irrigation lumen and the bladder is flushed; the filter screens and blocks the intravesical hemorrhage to form blood clots, bladder stones and bladder mucosa. To avoid obstruction of the orifice of the catheter.
  • the anti-clogging catheter can overcome the urinary catheter clogging phenomenon that is often present in the urinary clinic, and can ensure that the catheter can prevent the intravesical bleeding and other obstruction catheters while exerting the drainage bladder function. It greatly improves the safety and therapeutic effect of clinical operation; it can also reduce the pain when the patient indwells the catheter, reduce the complications of the indwelling catheter, ensure the patient's indwelling catheter and the successful extubation, and bring convenience to the patient. And promote healthy recovery.
  • the anti-clogging catheter of the invention has a smooth and filtering filter structure on the head of the tube; the mesh structure is oval, and the balloon is given when the catheter is placed in the bladder After inflation or water injection, the balloon can be fully opened and the filter can be opened to maximize contact with the fluid in the bladder, thereby preventing blood clots in the bladder, bladder stones and bladder mucosa blocking the nozzle, resulting in overfilling of the bladder, and injection.
  • the rinsing solution can be used for bladder irrigation, thereby effectively improving the therapeutic effect of such patients.
  • the anti-clogging catheter of the invention can realize the filtering of the blood clot, the drainage of the bladder, the injection of the irrigation liquid, the keeping of the drainage, and the clinical cure rate of the urology and the safety of the surgical operation.
  • FIG. 1 is a schematic view showing the outer structure of a three-chamber catheter in an open state according to the present invention
  • FIG. 2 is a schematic enlarged cross-sectional view showing a head region of a three-chamber catheter according to an embodiment of the present invention
  • FIG. 3 is an enlarged schematic cross-sectional view showing the tail region of the three-chamber catheter in an embodiment of the present invention (open state) );
  • Figure 4 is a schematic view showing the outer structure of the present invention in a closed state
  • Figure 5 is an enlarged schematic cross-sectional view of the tail region of the three-chamber catheter in a embodiment of the present invention (closed state);
  • 1 is the tube body
  • 2 is the air bag
  • 3 is the filter net
  • 4 is the air bag cavity
  • 5 is the drainage cavity
  • 6 is the flushing cavity.
  • the anti-clogging catheter comprises a tube body 1 and an air bag 2, and the air bag 2 is disposed at a position near the tail end of the tube body 1, and a filter net 3 is disposed outside the air bag 1.
  • the filter 3 covers the end of the pipe body 1.
  • the anti-clogging catheter can be made in the form of a double-lumen catheter or a three-chamber catheter (the three-cavity catheter is given in the figure, and the double lumen catheter has one less lumen, but the same can be
  • the function of drainage is realized. It is prepared by using silica gel, has almost no stimulation, has good biocompatibility, and has no foreign body sensation, and is non-toxic and non-corrosive.
  • the silicone balloon catheter intubation process has little damage to the urethra mucosa.
  • hematuria The incidence of hematuria is low, and it also avoids the feeling of discomfort and pain during the indwelling catheterization of the patient, significantly reduces the patient's overflow of urine, urinary tract burning and anxiety, and effectively prevents the formation of blood clots in the bladder to cause obstruction of the catheter.
  • the balloon 2 has a spherical shape and has a fixing function to prevent the catheter from falling off.
  • the airbag chamber 4 is flushed with the airbag, and the airbag 2 and the filter net 3 can be inflated through the airbag chamber 4.
  • the tail of the drainage chamber 5 has an outlet communicating with the outside, and the tail of the flushing chamber 6 also has an outlet communicating with the outside, the filter 3 package
  • the end of the tubular body 1 is bound to cover the drainage chamber 5 and the external communication port and/or the flushing chamber 6 and the external communication port.
  • the filter 3 is disposed outside the air bag 2, and has a smooth surface and an oval shape for filtering, biocompatibility, hydrophilicity, flexibility, kink resistance and good elasticity; the filter 3 can be fully filled with
  • the inside of the bladder has a filtering effect on intravesical hemorrhage, which can effectively prevent obstruction of the blood clot caused by internal hemorrhage, and at the same time, can smoothly flush the blood into the bladder to wash the blood clot.
  • the balloon 2 is placed in the bladder of the patient, the catheter is fixed, and the irrigation fluid is injected from the body 1 (from the drainage lumen 5 and/or the irrigation lumen 6) and the bladder is flushed; 3 filter and block intravesical hemorrhage to form blood clots, bladder stones and bladder mucosa to avoid obstruction of the orifice of the catheter.
  • the anti-clogging catheter is made into a double-cavity catheter (not shown). It is made of rubber and has almost no stimulation. It has good biocompatibility. The patient has no foreign body sensation and is non-toxic and non-corrosive. The catheter intubation process has little damage to the urethral mucosa, and the incidence of hematuria is low. It also avoids the feeling of discomfort and pain during the indwelling catheter, which significantly reduces the patient's overflowing urine, urinary tract burning pain and anxiety. Preventing blood clots from forming in the bladder leads to obstruction of the catheter.
  • the airbag chamber is in communication with the airbag, and the airbag 2 and the filter 3 can be expanded by inflation of the airbag chamber.
  • the outlet of the drainage chamber has an outlet communicating with the outside, and the filter mesh 3 covers the end of the tubular body 1, that is, the drainage lumen is inevitably covered with the external communication port.
  • the balloon 2 is placed in the bladder of the patient, the catheter is fixed, the irrigation fluid is injected from the lumen 1 (from the drainage lumen) and the bladder is flushed; the filter 3 filters and blocks the formation of intravesical hemorrhage Blood clots, bladder stones, and bladder mucosa to avoid obstruction of the orifice of the catheter.
  • the anti-clogging catheter is made into a three-cavity catheter according to actual needs; the preparation is made of latex material, has almost no stimulation, has good biocompatibility, has no foreign body sensation, and is non-toxic and non-corrosive; Intubation of the balloon catheter has less damage to the urethral mucosa, and the incidence of hematuria is low. It also avoids the feeling of discomfort and pain during the indwelling catheter, which significantly reduces the patient's overflowing urine, urinary tract burning pain and anxiety.
  • 2 is a schematic cross-sectional view of the head region of the three-chamber catheter
  • FIG. 3 is a schematic cross-sectional view of the tail region of the three-chamber catheter (open state)
  • FIG. 4 is a schematic view showing the outer structure of the three-chamber catheter in a closed state
  • It is a schematic cross-sectional view of the tail region of the three-chamber catheter (closed state).
  • the airbag chamber 4 is flushed with the airbag, and the airbag 2 and the filter 3 can be inflated through the airbag chamber 4.
  • the tail of the drainage chamber 5 has an outlet communicating with the outside
  • the tail of the flushing chamber 6 also has an outlet communicating with the outside
  • the filter mesh 3 covers the tail end of the tubular body 1, that is, the drainage chamber 5 and the external communication port and the flushing chamber 6 and the external communication port are inevitably covered. .
  • the balloon 2 is placed in the bladder of the patient, the catheter is fixed, and the irrigation liquid is injected from the tube 1 (from the drainage chamber 5 and the irrigation chamber 6) and the bladder is washed; the filter 3 filters And block the intravesical hemorrhage to form blood clots, bladder stones and bladder mucosa to avoid obstruction of the catheter of the catheter.
  • the balloon 2 and the filter 3 are inflated from the balloon chamber 4, and the catheter is fixed, the balloon is inflated or filled with water, and is placed in the bladder;
  • the bladder can be drained from the drainage chamber 5 and the irrigation chamber 6, and the filter 3 filters the intravesical hemorrhage, bladder stones and bladder mucosa, so that the urine and the irrigation liquid can be smoothly drained to the outside;
  • the lavage fluid can be injected from the drainage chamber 5 or the rinsing chamber 6 to wash the blood clot in the bladder, and the filter mesh 3 prevents the blood clot in the bladder from obstructing the urinary catheter tube, and can be removed from the drainage lumen 5 Or the flushing fluid injected into the flushing chamber 6 is smoothly injected into the bladder.
  • the (bladder irrigation) anti-clogging catheter can overcome the current urinary catheter clogging phenomenon, which can ensure the catheter can also prevent the bladder while exerting the effect of draining the bladder.
  • Internal obstruction and other obstruction catheters greatly improve the safety and therapeutic effect of clinical operation; it can also reduce the pain when the patient indwells the catheter, reduce the complications of indwelling catheter, ensure the patient to indwell the catheter successfully and extubate Smooth, bring convenience to patients and promote healthy recovery.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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Abstract

一种防堵塞导尿管，包括管体（1）和气囊（2），所述气囊设置在管体靠近尾端的部位，所述气囊外侧设置过滤网（3），所述过滤网包覆管体尾端，过滤网张开状态时呈卵形。当导尿管置入膀胱后给气囊充气或注水，使得气囊充分张开同时撑开过滤网使其最大面积地接触膀胱内液体，从而防止膀胱内出血形成血凝块、膀胱结石及膀胱粘膜堵塞管口导致膀胱过度充盈。

Description

防堵塞导尿管
技术领域
本发明属医疗手术器械领域， 更具体地讲， 涉及一种过滤网式的防堵塞导 尿管。
背景技术
在泌尿外科临床实践中， 膀胱内出血、 膀胱结石和膀胱痉挛是造成导尿管 梗阻的重要原因； 现有的导尿管引流口孔径及数量有限， 有效引流通道常常易 受到血块、 结石甚至是痉挛的膀胱粘膜堵塞， 造成引流不畅。 膀胱出血形成血 凝块或膀胱结石的患者， 若未及时对其膀胱进行冲洗或冲洗不彻底， 会造成导 尿管堵塞， 很可能给患者造成生命危险。 此外， 保留导尿的患者易出现膀胱痉 挛， 导致导尿管堵塞， 引流不通畅， 经常的膀胱冲洗及更换导尿管不仅会对患 者形成安全隐患， 也增加了医务工作者的日常工作量。
传统的留置导尿管容易引起漏尿， 拔管后尿潴留， 尿路感染， 尿道括约肌 痉挛、 前列腺增生等可致置管困难， 引流不畅等问题。 虽然， 现有的导尿管能 够通过注入冲洗液对膀胱进行冲洗， 然而， 若膀胱内血块堵塞管体， 则无法注 入冲洗液并发挥作用； 因此， 研制一种能够有效防止膀胱内血凝块、 结石或者 膀胱粘膜阻塞管口的导尿管装置对于患者是十分必要而且是有利的。
发明内容
本发明的目的在于提供一种过滤网式的防堵塞导尿管，适用于具有膀胱出 血形成血凝块的患者、 膀胱结石患者， 以及一般的保留导尿以防止膀胱痉挛引 起的导尿管堵塞。
为实现以上目的， 本发明公开以下技术方案： 防堵塞导尿管， 包括管体和 气囊， 所述气囊设置在管体靠近尾端的部位， 其特征在于， 所述气囊外侧设置 过滤网， 所述过滤网包覆管体尾端。
本发明中， 所述防堵塞导尿管按实际需要可制成多种规格， 比如， 防堵塞 导尿管可以制成双腔导尿管或三腔导尿管等的形式。
作为一个优选方案， 所述管体为双腔管体， 包括一引流腔和一气囊腔。 作为一个优选方案， 所述管体为三腔管体， 包括一引流腔、 一气囊腔和一 冲洗腔。
作为一个优选方案， 所述气囊张开状态时呈球形， 具有固定作用， 可防止 导尿管脱落。
作为一个优选方案， 所述过滤网张开状态时呈卵形， 其表面光滑， 起过滤 作用， 具有生物相容性、 亲水性、 柔韧性、 抗扭结性和良好的弹性； 该过滤网 可充分填充于膀胱内部， 对膀胱内出血等具有过滤作用， 能有效地防止内出血 形成的血块等梗阻导尿管， 同时， 也能使冲洗液顺利进入膀胱进行冲洗血块。
作为一个优选方案， 所述管体采用橡胶、 乳胶或硅胶材料制备。 本发明的 一个实施例中， 所述防堵塞导尿管采用硅胶制备， 几乎无剌激性， 生物相容性 好， 患者无异物感， 具有无毒、 无腐蚀性； 该硅胶气囊导尿管插管过程对尿道 黏膜损伤小， 血尿发生率低， 也进一歩避免了患者留置导管过程产生不适和疼 痛的感觉， 明显减轻患者的溢尿、 尿道灼痛和焦虑， 有效防止膀胱内出血形成 血凝块导致梗阻导尿管。
使用时， 将的气囊置于患者膀胱内， 固定导尿管， 冲洗液由引流腔和 /或 冲洗腔注入并冲洗膀胱； 过滤网过滤并阻挡膀胱内出血形成血凝块、 膀胱结石 及膀胱粘膜， 以避免其梗阻本导尿管的管口。
使用结果表明， 本防堵塞导尿管， 能够克服目前泌尿临床上常出现的导尿 管堵塞现象， 可保证导尿管在发挥引流膀胱作用的同时， 也能防止膀胱内出血 等梗阻导尿管， 极大地提高了临床上操作的安全性和治疗效果； 还能减轻患者 留置导尿管时的疼痛， 减少留置导尿管并发症， 确保患者留置尿管成功和拔管 顺利， 为患者带来方便并促进健康恢复。
本发明的优点在于： 本发明的防堵塞导尿管， 管体头部设有一个光滑且具 有过滤作用的过滤网结构； 该网状结构呈卵形， 当导尿管置入膀胱后给予气囊 充气或注水后使气囊充分张开同时撑开过滤网可使其最大面积地接触膀胱内 液体， 从而防止膀胱内出血形成血凝块、 膀胱结石及膀胱粘膜堵塞管口导致膀 胱过度充盈， 而且， 注入的冲洗液可进行膀胱冲洗， 从而有效的提高该类病患 的治疗效果。本发明的防堵塞导尿管可实现过滤血块、引流膀胱、注入冲洗液、 保持引流通畅， 提高了泌尿外科临床的治愈率和手术操作的安全性。 附图说明
图 1为本发明张开状态下的三腔导尿管外形结构示意图；
图 2为本发明的一个实施例中， 三腔导尿管头部区域剖面放大示意图； 图 3为本发明的一个实施例中，所述三腔导尿管尾部区域剖面放大示意图 (张开状态）；
图 4为本发明闭合状态下的外形结构示意图；
图 5为本发明的一个实施例中，所述三腔导尿管尾部区域剖面放大示意图 (闭合状态）；
图 1一图 5中， 1为管体、 2为气囊、 3为过滤网、 4为气囊腔、 5为引流 腔、 6为冲洗腔。
具体实施方式
下面结合具体实施例， 进一歩阐述本发明。 下述实施例中所使用的实验方 法如无特殊说明， 均为常规方法。 下述实施例中所用的材料、 试剂等， 如无特 殊说明， 均可从商业途径得到。 应理解， 这些实施例仅用于说明本发明而不用 于限制本发明的范围。
实施例 1
如图 1一图 5所示， 本防堵塞导尿管， 包括管体 1和气囊 2， 所述气囊 2 设置在管体 1靠近尾端的部位， 所述气囊 1外侧设置过滤网 3， 所述过滤网 3 包覆管体 1尾端。
防堵塞导尿管可以制成双腔导尿管或三腔导尿管的形式（图示中给出的仅 为三腔导尿管形式， 双腔导尿管少一冲洗腔， 但同样能实现引流的功能）， 其 采用硅胶制备， 几乎无剌激性， 生物相容性好， 患者无异物感， 具有无毒、 无 腐蚀性； 该硅胶气囊导尿管插管过程对尿道黏膜损伤小， 血尿发生率低， 也进 一歩避免了患者留置导管过程产生不适和疼痛的感觉， 明显减轻患者的溢尿、 尿道灼痛和焦虑， 有效防止膀胱内出血形成血凝块导致梗阻导尿管。
所述气囊 2外形呈球形， 具有固定作用， 可防止导尿管脱落。
气囊腔 4与气囊想通， 可通过气囊腔 4充气扩充气囊 2和过滤网 3。 引流 腔 5尾部有出口与外界连通， 冲洗腔 6尾部也有出口与外界连通， 过滤网 3包 覆管体 1尾端， 即必然包覆引流腔 5与外界连通口和 /或冲洗腔 6与外界连通 口。
过滤网 3设于气囊 2外部， 其表面光滑、 呈卵形， 起过滤作用， 具有生物 相容性、 亲水性、 柔韧性、 抗扭结性和良好的弹性； 该过滤网 3可充分填充于 膀胱内部， 对膀胱内出血等具有过滤作用， 能有效地防止内出血形成的血块等 梗阻导尿管， 同时， 也能使冲洗液顺利进入膀胱进行冲洗血块。
使用时， 将所述的气囊 2置于患者膀胱内， 固定所述导尿管， 冲洗液由管 体 1 (从引流腔 5和 /或冲洗腔 6) 被注入并冲洗膀胱； 所述过滤网 3过滤并阻 挡膀胱内出血形成血凝块、 膀胱结石及膀胱粘膜， 以避免其梗阻本导尿管的管 口。
实施例 2
防堵塞导尿管按实际制成双腔导尿管 （图示未画出）， 其采用橡胶制备， 几乎无剌激性， 生物相容性好， 患者无异物感， 具有无毒、 无腐蚀性； 该导尿 管插管过程对尿道黏膜损伤小， 血尿发生率低， 也进一歩避免了患者留置导管 过程产生不适和疼痛的感觉， 明显减轻患者的溢尿、 尿道灼痛和焦虑， 有效防 止膀胱内出血形成血凝块导致梗阻导尿管。
气囊腔与气囊想通， 可通过气囊腔充气扩充气囊 2和过滤网 3。 引流腔尾 部有出口与外界连通， 过滤网 3包覆管体 1尾端， 即必然包覆引流腔与外界连 通口。
使用时， 将所述的气囊 2置于患者膀胱内， 固定所述导尿管， 冲洗液由管 体 1 (从引流腔） 被注入并冲洗膀胱； 所述过滤网 3过滤并阻挡膀胱内出血形 成血凝块、 膀胱结石及膀胱粘膜， 以避免其梗阻本导尿管的管口。
实施例 3
所述防堵塞导尿管按实际需要制成三腔导尿管； 其采用乳胶材料制备， 几 乎无剌激性， 生物相容性好， 患者无异物感， 具有无毒、 无腐蚀性； 该气囊导 尿管插管过程对尿道黏膜损伤小， 血尿发生率低， 也进一歩避免了患者留置导 管过程产生不适和疼痛的感觉， 明显减轻患者的溢尿、 尿道灼痛和焦虑， 有效 图 2为三腔导尿管头部区域剖面示意图； 图 3为三腔导尿管尾部区域剖面 示意图 （张开状态）； 图 4为三腔导尿管闭合状态下的外形结构示意图； 图 5 为三腔导尿管尾部区域剖面示意图 （闭合状态）。
气囊腔 4与气囊想通， 可通过气囊腔 4充气扩充气囊 2和过滤网 3。 引流 腔 5尾部有出口与外界连通， 冲洗腔 6尾部也有出口与外界连通， 过滤网 3包 覆管体 1尾端， 即必然包覆引流腔 5与外界连通口和冲洗腔 6与外界连通口。
使用时， 将所述的气囊 2置于患者膀胱内， 固定所述导尿管， 冲洗液由管 体 1 (从引流腔 5和冲洗腔 6) 被注入并冲洗膀胱； 所述过滤网 3过滤并阻挡 膀胱内出血形成血凝块、膀胱结石及膀胱粘膜，以避免其梗阻本导尿管的管口。
实施例 4
如图 1一图 5所示，将本防堵塞导尿管插入患者膀胱后，可进行以下操作:
( 1 )所述导尿管插入膀胱后， 从气囊腔 4充气扩充气囊 2和过滤网 3， 使 该导尿管固定、 气囊充气或注水填充并静置于膀胱内；
(2 ) 引流膀胱内尿液
插入所述导尿管并固定好之后 ， 可从引流腔 5、冲洗腔 6引流膀胱， 过滤 网 3过滤膀胱内出血、 膀胱结石、 膀胱粘膜， 使尿液及冲洗液能顺利地引流到 体外；
(3 ) 注入冲洗液
插入所述导尿管后，可从引流腔 5或冲洗腔 6注入冲洗液对膀胱内血块进 行冲洗， 过滤网 3使膀胱内血块等避免了梗阻导尿管管体， 可使从引流腔 5或 冲洗腔 6注入的冲洗液顺利注入膀胱。
上述实施例的结果表明， 本（膀胱冲洗） 防堵塞导尿管， 能够克服目前泌 尿临床上常出现的导尿管堵塞现象， 可保证导尿管在发挥引流膀胱作用的同 时， 也能防止膀胱内出血等梗阻导尿管， 极大地提高了临床上操作的安全性和 治疗效果； 还能减轻患者留置导尿管时的疼痛， 减少留置导尿管并发症， 确保 患者留置尿管成功和拔管顺利， 为患者带来方便并促进健康恢复。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领域的普通 技术人员， 在不脱离本发明原理的前提下， 还可以做出若干改进和润饰， 这些

Claims

权 利 要 求 书
1. 防堵塞导尿管， 包括管体和气囊， 所述气囊设置在管体靠近尾端的部位， 其特征在 于， 所述气囊外侧设置过滤网， 所述过滤网包覆管体尾端。
2. 根据权利要求 1所述的防堵塞导尿管， 其特征在于， 所述管体为双腔管体， 包括一 引流腔和一气囊腔。
3. 根据权利要求 1所述的防堵塞导尿管， 其特征在于， 所述管体为三腔管体， 包括一 引流腔、 一气囊腔和一冲洗腔。
4. 根据权利要求 1所述的防堵塞导尿管， 其特征在于， 所述气囊张开状态时呈球形。
5. 根据权利要求 1所述的防堵塞导尿管，其特征在于，所述过滤网张开状态时呈卵形。
6. 根据权利要求 1所述的防堵塞导尿管， 其特征在于， 所述管体采用橡胶、 乳胶或硅 胶材料制备。
PCT/CN2014/084475 2013-08-21 2014-08-15 防堵塞导尿管 WO2015024481A1 (zh)

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