CN202637201U - Urethral insertion system for biodegradable urethral stent - Google Patents

Urethral insertion system for biodegradable urethral stent Download PDF

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Publication number
CN202637201U
CN202637201U CN 201120432901 CN201120432901U CN202637201U CN 202637201 U CN202637201 U CN 202637201U CN 201120432901 CN201120432901 CN 201120432901 CN 201120432901 U CN201120432901 U CN 201120432901U CN 202637201 U CN202637201 U CN 202637201U
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China
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biodegradable
urethral
urethral stent
stent
bridge
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CN 201120432901
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Chinese (zh)
Inventor
符伟军
胡堃
甘少磊
李刚
任卫卫
孙圣坤
肖文
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中国人民解放军总医院
北京博恩康生物科技有限公司
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Priority to CN 201120432901 priority Critical patent/CN202637201U/en
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Publication of CN202637201U publication Critical patent/CN202637201U/en

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Abstract

The utility model discloses a urethral insertion system for a biodegradable urethral stent. The system is formed by collating a sleeve tube, a central slide bar, a crescent hard thin slice, a push rod, a membrane-like cystoscope bridge and the biodegradable urethral stent, wherein a cystoscope sheath having an obturator is used as the sleeve tube and a hard cystoscope core is used as the central slide bar. The insertion system is characterized in that: firstly, the biodegradable urethral stent can be accurately inserted into a urethral stricture part; secondly, only one insertion is needed in an operation and the operating is simple and convenient, thereby reducing pains of a patient; and thirdly, the urethral insertion system is simple in structure and low in cost.

Description

—种用于生物可降解尿道支架的尿道置入系统 - a kind of biodegradable urethral stent into a urethra system

一、技术领域 First, the technical field

[0001] 本实用新型涉及一种用于生物可降解尿道支架的尿道置入系统,属于医疗器械领域。 [0001] The present invention relates to a biodegradable urethral stent placement system, belonging to the field of medical devices.

二、背景技术 Second, the technical background

[0002] 尿道狭窄是一种常见的泌尿系统疾病,狭窄可能继发感染,形成尿道憩室,尿道周围炎,前列腺或附睾睾丸炎,如果尿流梗阻长期不能解除,最终可致肾积水,肾功能损害出现尿毒症。 [0002] stenosis is a common urinary system diseases urethral stenosis may be secondary infection, urethral diverticulum formation, inflammation around the urethra, prostate or epididymal orchitis, if long-term urinary obstruction can not be lifted eventually can cause hydronephrosis, renal dysfunction uremia. 尿道狭窄的临床治疗方法可分为非手术治疗和手术治疗,其中尿道支架置入术已经成为治疗各种尿道狭窄梗阻的有效手段,尤其适合因前列腺良性增生导致的尿潴流、尿道梗阻。 The clinical treatment of urethral stricture divided into non-surgical and surgical treatments, which urethral stenting has become an effective means of treating a variety of urethral stricture obstruction due to benign prostatic hyperplasia is particularly suitable due to urinary flow, urethral obstruction. 目前尿道支架按照原材料的不同,可以分为不锈钢尿道支架、合成纤维硅胶尿道支架、镍钛合金尿道支架和生物可降解尿道支架。 Currently urethral stent according to different raw materials can be divided into stainless steel urethral stent, urethral stent synthetic silica, nitinol urethral stent and a biodegradable urethral stent. 通常不同的尿道支架,必须配备不同的尿道置入系统。 Different from the normal urethral stent, into the urethra must be equipped with different systems. 生物可降解尿道支架以聚乳酸为基本材料制作,在使用过程中可以降解,因此无需二次手术取出,大大降低了病患的痛苦,代表了尿道支架的发展方向。 Urethral stent biodegradable polylactic acid as the basic material, may degrade during use, so no second operation to remove, greatly reducing the pain patient, represents the development direction of the urethral stent. 但是目前还没有专门用于该类生物可降解尿道支架的尿道置入系统,这是由于可降解尿道支架具有特殊的机械性能,不方便置入尿道。 But there is no such dedicated biodegradable urethral stent placement system, which is biodegradable because urethral stent having specific mechanical properties, into the urethra is not convenient. 临床上多直接采用膀胱镜和活检钳操作,使用复杂,成功率低,给医患带来很多麻烦和痛苦。 Clinically used directly cystoscopy and biopsy forceps operation, the use of complex, success rate, and to doctors and patients suffering a lot of trouble.

三、发明内容 III. SUMMARY OF THE INVENTION

[0003] 本实用新型的目的在于提供一种用于生物可降解尿道支架的尿道置入系统,该实用新型能够安全方便地将可降解尿道支架放置于准确的尿道狭窄处。 [0003] The present invention aims to provide a biodegradable urethral urethral stent for placement systems, the invention can be safely and easily degradable urethral stent is placed at the exact urethral stricture.

[0004] 为实现上述目的,本实用新型所采用的技术方案是:设计制作月牙形硬质薄片和推杆,推杆上带有刻度,月牙形硬质薄挡板固定在推杆前端,与推杆方向垂直,该推杆和月牙形硬质薄片用于推动或拖动生物可降解尿道支架;以膀胱镜为中心滑杆,将生物可降解尿道支架套在中心滑杆上;设计制作膜状镜桥,通过膜状镜桥将中心滑杆和推杆安装套配在一起,从而月牙形硬质薄挡板与中心滑杆能够贴合在一起;推杆可沿着中心滑杆轴向滑移,便于将生物可降解尿道支架在尿道狭窄处释放,并且方便调节定位;以膀胱镜鞘为套管,手术前,将上述推杆、中心滑杆、生物可降解尿道支架和膜状镜桥同时插入膀胱镜鞘中。 [0004] To achieve the above object, the technical solution adopted by the present invention is: a crescent-shaped design and the rigid sheet pusher, the pusher with a scale, thin crescent-shaped baffle plate fixed to the rigid end of the plunger, and a direction perpendicular to the push rod, the push rod and the crescent-shaped rigid sheet for pushing or dragging a biodegradable urethral stent; cystoscopy to the center slider, biodegradable urethral stent fitted over the center of the slider; film design bridge-like mirror, the mirror film-like bridge slider center mounting sleeve and the push rod together with such a hard thin crescent-shaped baffle and the center slider can be bonded together; ram slider axially along the central slip, facilitating the release of the biodegradable stent in the urethra urethral stricture, and easy to adjust positioning; cystoscopic sheath to a sleeve, prior to surgery, to the push rod, the center slider, urethral stents and biodegradable film-shaped mirror bridge sheath while inserting the cystoscope.

[0005] 具体的讲,本实用新型是一种用于生物可降解尿道支架的尿道置入系统,由套管,中心滑杆,月牙形硬质薄片,推杆,膜状镜桥和生物可降解尿道支架组成,其中所述的套管为带有闭孔器的膀胱镜鞘,可以避免损伤尿道组织,所述的中心滑杆为硬质膀胱镜芯,既可用于准确寻找尿道狭窄部位,又可将生物可降解尿道支架固定在中心滑杆上,所述的月牙形硬质薄片为硬质金属薄片,强度高,不变形,一方面用于和中心滑杆侧面紧密接触,一方面可以通过旋转,进入生物可降解尿道螺旋结构内部,用于将生物可降解尿道沿中心滑杆方向轴向移动,所述的推杆为高强度金属丝,并采用类似活检钳结构,便于操作,杆部同时带有刻度,用于准确定位,所述的膜状镜桥采用TPU材料制成,韧性高,弹性好,外径与所用膀胱镜鞘内径相等,膜状镜桥上带有两 [0005] Specifically, the present invention is a method for biodegradable urethral stent placement system, by the sleeve, the center slider, crescent rigid sheet, pusher, and a film mirror biological bridge degradation composition urethral stent, wherein said sleeve is a cystoscopic sheath with obturator avoided urethral tissue damage, the center slider is a hard core cystoscopy, it can be used to accurately find urethral stenosis, turn on biodegradable urethral stent fixed to the center slider, the crescent-shaped hard metal foil sheet is a hard, high strength, deformation, on the one hand and a center side in close contact with the slider, on the one hand by rotating, the urethra into the biodegradable internal helical structure for biodegradable urethra along the central axial direction movement of the slider, the push rod is a high strength metallic wire, biopsy forceps and similar structure, easy to operate, the rod At the same time with a scale portion for accurately locating said mirror film-like bridge made of TPU materials, high toughness, good elasticity, with an outer diameter equal to the inner diameter of the sheath with the bladder, a film bridge with two mirror 个孔,通透贯穿,分别用于固定推杆和中心滑杆,所述的生物可降解尿道支架为具有螺旋结构的聚乳酸尿道支架。 Holes, through transparent, respectively, for fixing the center of the push rod and the slider, the biodegradable polylactic acid urethral stent urethral stent having a helical structure.

[0006] 更进一步来讲,一种用于生物可降解尿道支架的尿道置入系统,其特征在于所述的膜状镜桥与所述的中心滑杆和推杆配合,固定在所述的套管内壁,所述的中心滑杆和推杆能够相互滑动,所述的月牙形硬质薄片勾住所述的生物可降解尿道支架,并能够随推杆滑动。 [0006] Still further in terms of a biodegradable urethra for a urethral stent placement system, characterized in that the center of the slider and the pusher cooperate with the mirror film-like bridge secured to said the casing wall, the center of each slider and the push rod can slide, the crescent-shaped hook of the hard sheet urethral stent is biodegradable, and able to slide over the push rod.

[0007] 本实用新型具有以下特点: [0007] The present invention has the following characteristics:

[0008] ①专门用于将生物可降解尿道支架准确置入尿道狭窄部位。 [0008] ① dedicated biodegradable urethral stent placement accuracy urethral stenosis.

[0009] ②手术时只需一次插入,操作简便,减少病患痛苦。 [0009] Just once inserted ② surgery, easy to operate, reduce patient suffering.

[0010] ③结构简单,成本低。 Simple [0010] ③ structure and low cost.

四、附图说明 IV BRIEF DESCRIPTION

[0011] 图1是本实用新型的结构示意图; [0011] FIG. 1 is a structural diagram of the present invention novel;

[0012] 图2是膜状镜桥的俯视图; [0012] FIG. 2 is a plan view of a film mirror bridge;

[0013] 图3是中心滑杆和月牙形硬质薄片的俯视图。 [0013] FIG. 3 is a plan view of the slider and the center of the crescent-shaped rigid sheet.

五、具体实施方式 V. DETAILED DESCRIPTION

[0014] 下面结合附图和实施例来进一步说明。 [0014] The following examples and in conjunction with the accompanying drawings described further.

[0015] 参照图1,一种用于生物可降解尿道支架的尿道置入系统,采用单层套管的结构形式,组件包括套管5,中心滑杆3,月牙形硬质薄片1,推杆2,膜状镜桥4和生物可降解尿道支架6,其中套管5为带有闭孔器的膀胱镜鞘,中心滑杆3为硬质膀胱镜芯,既可用于准确寻找尿道狭窄部位,又可将生物可降解尿道支架固定在中心滑杆5上,月牙形硬质薄片I和中心滑杆3侧面紧密接触,可以通过旋转,进入生物可降解尿道螺旋结构内部,用于将生物可降解尿道沿中心滑杆方向轴向移动,推杆2为高强度金属丝,采用类似活检钳结构,便于操作,推杆2同时带有刻度,用于准确定位,膜状镜桥4采用TPU材料制成,韧性高,弹性好,外径与套管5内径相等,膜状镜桥4上带有两个孔,通透贯穿,分别用于固定推杆2和中心滑杆3,生物可降解尿道支架6为具有螺旋结构的聚乳酸 [0015] Referring to FIG 1, one biodegradable urethral stent into the urethra of a system for using a single-layer structure of the sleeve, the sleeve assembly including 5, the center of the slider 3, a crescent rigid sheet, push bar 2, the bridge 4 and the film-like mirror biodegradable urethral stent 6, wherein the sleeve 5 is cystoscopic sheath with obturator, the center slider 3 of a hard core cystoscopy, can be used to accurately find urethral stenosis , but also biodegradable urethral stent fixed to the center on the slider 5, in close contact with the crescent hard sheet I and the center of sides of the slider 3, can be rotated into the urethra biodegradable internal helical structure for bio degradation of the urethra along the central axial direction movement of the slider, the push rod 2 is a high strength metallic wire, biopsy forceps similar structure, easy to operate, while the push rod 2 with a scale for accurate positioning, the bridge 4 using a film mirror TPU materials made of high toughness, good elasticity, with an outer diameter equal to the inner diameter of the sleeve 5, with two holes on a film mirror bridge 4, through transparent, respectively, for fixing the center of the push rod 2 and the slider 3, biodegradable 6 is a urethral stent having a helical structure of polylactic acid 道支架。 Road stand. 进行尿道支架置入术前,常规消毒生物可降解尿道支架的尿道置入系统,对患者进行局部或硬膜外麻醉,用膀胱镜检查狭窄情况,根据测量结果,选择适当规格的生物可降解尿道支架6。 Before urethral stenting, routine disinfection biodegradable urethral stent placement system, the local patient or epidural anesthesia, cystoscopy stenosis, the measurement result, selecting the proper size biodegradable urethra stand 6. 退出中心滑杆3,将生物可降解尿道支架6套在中心滑杆3上,然后与推杆2 —起固定在膜状镜桥4上,其中月牙形硬质薄片I紧贴在中心滑杆3上,将该套件一起插入套管5内孔中,并在直视下放置生物可降解尿道支架并调整位置。 Exit center slider 3, biodegradable urethral stent sleeve 6 at the center of the slider 3, and then the push rod 2 - from the fixed mirror on the film-like bridge 4, wherein the crescent-shaped rigid sheet against the center slider I 3, is inserted into the package together with the bore sleeve 5, and placed under direct vision biologically degradable and adjust the position of the urethral stent.

Claims (2)

1. 一种用于生物可降解尿道支架的尿道置入系统,其特征在于由套管,中心滑杆,月牙形硬质薄片,推杆,膜状镜桥和生物可降解尿道支架组成,所述的套管为带有闭孔器的膀胱镜鞘,所述的中心滑杆为硬质膀胱镜芯,所述的月牙形硬质薄片为硬质金属片,所述的推杆为高强度金属丝,所述的膜状镜桥采用TPU材料制成,坚韧高弹,所述的生物可降解尿道支架为螺旋结构的聚乳酸尿道支架。 1. A biodegradable system urethral stent into the urethra, characterized by the sleeve, the center slider, crescent rigid sheet, the pusher, a film mirror bridge and a biodegradable composition urethral stent, the said sleeve is cystoscope with obturator sheath, said center slider cystoscopy a hard core, the crescent-shaped sheet of a hard rigid metal sheet, the high strength of the push rod wire, the bridge is made of a film mirror TPU materials, high elastic resilience, the biodegradable urethral stent in a helical structure of the polylactic acid urethral stent.
2.如权利要求I所述的用于生物可降解尿道支架的尿道置入系统,其特征在于所述的膜状镜桥与所述的中心滑杆和推杆配合,固定在所述的套管内壁,所述的中心滑杆和推杆能够相互滑动,所述的月牙形硬质薄片勾住所述的生物可降解尿道支架,并能够随推杆滑动。 2. The biodegradable urethra for urethral stent of claim I into the system, characterized in that the slide bar and the push rod with the center of the film-like mirror and said bridge is fixed in said sleeve the inner wall, and said central slider slidable pusher another, the crescent-shaped hook of the hard sheet urethral stent is biodegradable, and able to slide over the push rod.
CN 201120432901 2011-11-04 2011-11-04 Urethral insertion system for biodegradable urethral stent CN202637201U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106714730A (en) * 2014-08-12 2017-05-24 布赖特沃特医疗公司 Systems and methods for coupling and decoupling a catheter
CN107684480A (en) * 2017-09-24 2018-02-13 江苏诺瑞思医疗器械有限公司 A kind of urethra rack and imbedding system
US9956100B2 (en) 2009-09-15 2018-05-01 Brightwater Medical, Inc. Systems and methods for coupling and decoupling a catheter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9956100B2 (en) 2009-09-15 2018-05-01 Brightwater Medical, Inc. Systems and methods for coupling and decoupling a catheter
CN106714730A (en) * 2014-08-12 2017-05-24 布赖特沃特医疗公司 Systems and methods for coupling and decoupling a catheter
CN106714730B (en) * 2014-08-12 2019-04-16 布赖特沃特医疗公司 System and method for coupling and decoupling conduit
CN107684480A (en) * 2017-09-24 2018-02-13 江苏诺瑞思医疗器械有限公司 A kind of urethra rack and imbedding system

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