技术领域technical field
本实用新型涉及医疗用品技术领域，具体涉及一种泌尿科用结石抓取器。The utility model relates to the technical field of medical supplies, in particular to a stone grabber for urology.
背景技术Background technique
现有的泌尿科使用的结石抓取器，由于抓取端(抓斗)采用张开式结构，并且抓斗由多根钢丝制成，在抓取尿道结石时，结石抓取器从尿道口插入后，抓取端容易对尿道造成损伤，易引起尿道感染。The stone grabber used in the existing urology department, because the grabbing end (grab bucket) adopts an open structure, and the grab bucket is made of multiple steel wires, when grabbing urethral calculi, the calculus grabber will move from the urethral opening After being inserted, the grasping end is likely to cause damage to the urethra and easily cause urinary tract infection.
对于尿道结石，由于有不同大小碎石的存在，因此，在抓取中，往往因为碎石大小的不同，导致抓取的错误，在面对由于小碎石堆积导致尿道堵塞，且肾、膀胱结石术后不能剧烈运动的患者，需要一种灵活性更高的结石抓取器。For urethral calculi, due to the existence of gravel of different sizes, in the grasping, the size of the gravel is often different, resulting in errors in grasping. In the face of urethral blockage due to the accumulation of small gravel, and kidney, bladder Patients who cannot exercise vigorously after stone surgery need a more flexible stone grabber.
CN 202376179U公开了一种在抓取尿道结石时，不易对尿道造成损伤的泌尿科用结石抓取器。所述抓取器，U形抓取端头的两端与导丝的前端面固定连接，U形抓取端头的内侧面上设有锯齿，套管套装在导丝上，套管的内壁上设有多个用于夹紧U形抓取端头的半圆形凸起，套管的后端面与弹簧的一端固定连接，滑套套装在导丝上，滑套和套管与导丝滑动配合，弹簧位于滑套与套管之间，推柄与导丝的后端面固定连接，U形抓取端头为由弹簧钢制成的U形抓取端头。CN 202376179U discloses a stone grabber for urology that is less likely to cause damage to the urethra when grabbing urethral calculi. In the grabber, the two ends of the U-shaped grabbing end are fixedly connected to the front end of the guide wire, the inner side of the U-shaped grabbing end is provided with serrations, the sleeve is sleeved on the guide wire, and the inner wall of the sleeve is There are multiple semicircular protrusions for clamping the U-shaped grasping end, the rear end surface of the sleeve is fixedly connected with one end of the spring, the sliding sleeve is set on the guide wire, the sliding sleeve and the sleeve are connected with the guide wire Sliding fit, the spring is located between the sliding sleeve and the casing, the push handle is fixedly connected to the rear end surface of the guide wire, and the U-shaped grasping end is a U-shaped grasping end made of spring steel.
CN 203776984U公开了一种泌尿科用结石抓取器，包括导杆，导杆的端部设有结石槽，导杆上设有滑槽，滑槽内设有用于切割结石的刀片。所述抓取器结构简单，设计巧妙，成本低，在使用时，先将导杆的一端伸入到结石处，将结石固定在结石槽内，然后迅速的推动刀片前进，这样就可以快速的取下结石，使患者减少痛苦，这是一种新的技术方案，便于推广使用。CN 203776984U discloses a stone grabber for urology, which includes a guide rod, the end of the guide rod is provided with a stone groove, the guide rod is provided with a chute, and a blade for cutting stones is arranged in the chute. The grabber is simple in structure, ingenious in design, and low in cost. When in use, first extend one end of the guide rod into the stone, fix the stone in the stone groove, and then quickly push the blade forward, so that it can quickly It is a new technical solution to remove the calculus and reduce the pain of the patient, which is convenient for popularization and use.
实用新型内容Utility model content
本实用新型克服现有技术存在的不足，提供了一种泌尿科用结石抓取器，来更加灵活的清理尿道中的结石。The utility model overcomes the deficiencies in the prior art and provides a calculus grabber for urology to more flexibly clean the calculus in the urethra.
为了实现上述目的，本实用新型采用如下技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
一种泌尿科用结石抓取器，包括导丝，抓取端头，所述导丝为中空导丝，所述导丝外设有套管，所述套管的一端固定有抓取端头，所述端头设有抓取爪，抓取端头外包裹有软硅胶，在抓取爪内侧设有切割针，所述套管尾部侧端设有推手，所述导丝末端设有润滑液注射腔。A calculus grasper for urology, comprising a guide wire and a grasping end, the guide wire is a hollow guide wire, a sleeve is arranged outside the guide wire, and one end of the sleeve is fixed with a grasping end , the end is provided with grabbing claws, the grabbing end is wrapped with soft silica gel, a cutting needle is provided inside the grabbing claws, a push handle is provided at the side end of the tail of the casing, and a lubricating device is provided at the end of the guide wire. Liquid injection cavity.
进一步的，所述切割针的方向为与套管中轴平行或向套管中轴方向，与中轴呈30°角。Further, the direction of the cutting needle is parallel to or toward the central axis of the cannula, forming an angle of 30° with the central axis.
进一步的，所述导丝长度大于套管长度。Further, the length of the guide wire is greater than the length of the cannula.
进一步的，所述切割针的长度不大于抓取爪长度的一半。Further, the length of the cutting needle is no more than half of the length of the grabbing claw.
进一步的，所述中空导丝使用前注满润滑剂。Further, the hollow guide wire is filled with lubricant before use.
本实用新型具有以下有益效果：The utility model has the following beneficial effects:
本实用新型结构简单，使用灵活，适用于不同粒径的结石的抓取，不伤害尿道，同时便于小型结石的排出，便于结石堆积的堵塞消除。The utility model has the advantages of simple structure and flexible use, is suitable for grasping stones of different particle sizes, does not harm the urethra, and is convenient for the discharge of small stones, and is convenient for eliminating blockage caused by accumulation of stones.
附图说明Description of drawings
图1为本实用新型整体结构图。Fig. 1 is the overall structure diagram of the utility model.
图2为本实用新型所述抓取端头结构示意图。Fig. 2 is a schematic diagram of the structure of the grasping end described in the present invention.
具体实施方式detailed description
下面通过实施例，并结合附图，对本实用新型的技术方案作进一步具体的说明。The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.
一种泌尿科用结石抓取器，包括导丝1，抓取端头2，所述导丝1为中空导丝，所述导丝1外设有套管8，所述套管8的一端固定有抓取端头2，所述抓取端头2设有抓取爪3，抓取端头2外包裹有软硅胶4，在抓取爪3内侧设有切割针5，所述套管8尾部侧端设有推手6，所述导丝1末端设有润滑液注射腔7。A stone grabber for urology, comprising a guide wire 1 and a grasping end 2, the guide wire 1 is a hollow guide wire, a sleeve 8 is arranged outside the guide wire 1, and one end of the sleeve 8 A grasping end 2 is fixed, the grasping end 2 is provided with a grasping claw 3, the grasping end 2 is wrapped with soft silica gel 4, and a cutting needle 5 is arranged inside the grasping claw 3, and the casing 8. A push handle 6 is provided at the side end of the tail, and a lubricating fluid injection cavity 7 is provided at the end of the guide wire 1.
所述切割针5的方向为与套管8中轴平行或朝向套管8中轴方向，与中轴呈30°角中的任一一种。The direction of the cutting needle 5 is either parallel to the central axis of the casing 8 or towards the central axis of the casing 8, or at an angle of 30° to the central axis.
所述导丝1长度大于套管8长度。The length of the guide wire 1 is greater than the length of the sleeve 8 .
所述切割针5的长度不大于抓取爪3长度的一半。The length of the cutting needle 5 is not greater than half of the length of the gripping claw 3 .
使用时，对于小结石堆积情况，使用抓取端头的切割针刺堆积小结石，并注射润滑剂即可；对于抓取大结石，抓取爪抓取出体外，如遇到体积较大难以直接抓取排出的，使用切割针切割成小结石排出；同时通过注射润滑液，减少结石与尿道的摩擦，抓取端头外设有软硅胶，也防止了抓取的结石的脱落及对尿道摩擦损伤。When using, for the accumulation of small stones, use the cutting needle at the grabbing end to pierce small stones and inject lubricant; for grabbing large stones, grab the claws and take them out of the body. Grab and discharge directly, use cutting needles to cut into small stones and discharge; at the same time, through injection of lubricating fluid, reduce friction between stones and urethra, and soft silica gel is installed outside the grabbing end, which also prevents the stones from falling off and causing damage to the urethra. Friction damage.
上述实施例只是为了说明本实用新型的技术构思及特点，其目的是在于让本领域内的普通技术人员能够了解本实用新型的内容并据以实施，并不能以此限制本实用新型的保护范围。凡是根据本实用新型内容的实质所作出的等效的变化或修饰，都应涵盖在本实用新型的保护范围内。The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to allow those of ordinary skill in the art to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model with this . All equivalent changes or modifications made according to the essence of the content of the utility model shall fall within the scope of protection of the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620231106.7UCN205458905U (en) | 2016-03-18 | 2016-03-18 | Calculus gripping device for urology department |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620231106.7UCN205458905U (en) | 2016-03-18 | 2016-03-18 | Calculus gripping device for urology department |
| Publication Number | Publication Date |
|---|---|
| CN205458905Utrue CN205458905U (en) | 2016-08-17 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620231106.7UExpired - Fee RelatedCN205458905U (en) | 2016-03-18 | 2016-03-18 | Calculus gripping device for urology department |
| Country | Link |
|---|---|
| CN (1) | CN205458905U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106880402A (en)* | 2017-03-01 | 2017-06-23 | 北华大学 | A kind of Urology Surgery calculus remove device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106880402A (en)* | 2017-03-01 | 2017-06-23 | 北华大学 | A kind of Urology Surgery calculus remove device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20160817 Termination date:20170318 | |
| CF01 | Termination of patent right due to non-payment of annual fee |