阅读说明：本技术 尿道吻合引导器 (Urethra anastomotic guiding device ) 是由 于德新 张涛 王�琦 马嘉兴 于 2018-12-21 设计创作，主要内容包括：本发明属于医疗器械技术领域,是针对现有的尿道吻合引导器吻合难度大而提供的一种便于尿道吻合的尿道吻合引导器,包括主体,主体一端部周边设有凹槽,所述的凹槽为多个且环形阵列分布于主体的周向。所述的凹槽为6条,且均匀分布在主体一端的周向。主体设置凹槽部分为折弯部,凹槽设置位置分别为与折弯部折弯方向呈30°、90°、150°、210°、270°、330°夹角。本发明的有益效果：该引导器的使用,可以大大降低膀胱颈尿道吻合的难度。由于凹槽的存在,使进针出针的位置固定,使缝线分布位置相对均匀,尿道黏膜与膀胱黏膜对合良好,防止术后因黏膜对合不良出现漏尿或吻合口狭窄等情况。(The invention belongs to the technical field of medical instruments, and provides a urethral anastomosis guider convenient for urethral anastomosis, which aims at the problem that the existing urethral anastomosis guider is difficult to anastomosis. The recess be 6, and evenly distributed in the circumference of main part one end. The main part sets up the groove part and is the portion of bending, and the groove setting position is 30 °, 90 °, 150 °, 210 °, 270 °, 330 ° contained angle respectively with the portion of bending direction of bending. The invention has the beneficial effects that: the use of the guiding device can greatly reduce the difficulty of the bladder neck urethra anastomosis. Due to the existence of the groove, the positions of the needle insertion and the needle withdrawal are fixed, the distribution positions of the suture lines are relatively uniform, the urethra mucous membrane and the bladder mucous membrane are well jointed, and the situations of urine leakage or narrow anastomotic stoma and the like caused by poor jointing of the mucous membranes after the operation are prevented.)

1. Urethra guide ware that coincide, including the main part, its characterized in that: the periphery of one end of the main body is provided with a plurality of grooves distributed in the circumferential direction of the main body.

2. The urethral anastomosis guide according to claim 1, wherein: the recess be 6, and evenly distributed in the circumference of main part one end.

3. The urethral anastomosis guide according to claim 2, wherein: the main part sets up the groove part and is the portion of bending, and the groove setting position is 30 °, 90 °, 150 °, 210 °, 270 °, 330 ° contained angle respectively with the portion of bending direction of bending.

4. The urethral anastomosis guide according to claim 3, wherein: the angle between the bending part and the main body is any value between 60 degrees and 85 degrees.

5. The urethral anastomosis guide according to claim 1 or 3, wherein: the cross section of the groove is of an arc structure.

6. The urethral anastomosis guide according to claim 1, wherein: the end face of one end of the main body arrangement groove part is of a hemispherical structure.

7. The urethral anastomosis guide according to claim 1, wherein: still include the cap, the cap cup joints and sets up recess one end at the main part.

8. The urethral anastomosis guide according to claim 1, wherein: the main body is made of metal.

9. The urethral anastomosis guide according to claim 5, wherein: the cap is made of plastic materials.

10. The urethral anastomosis guide according to claim 1, wherein: the groove interval is 0.68 mm.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a urethral anastomosis guider.

Background

The prostatic cancer is a common tumor of the male reproductive system, the incidence rate of the prostatic cancer is the first in developed countries in Europe and America, and the prostatic cancer rapidly rises in recent years in China. The laparoscopic radical prostate cancer surgery is a standard treatment method for treating localized prostate cancer, the number of radical prostate cancer surgeries in the hospital is over 100, the surgery operation is complex, and urethra and bladder anastomosis is one of the difficulties in operation. The anastomosis difficulty is mainly due to the fact that the space behind the pubic bone under an endoscope is small, actions such as needle holding, needle inserting and needle withdrawing are greatly limited, important visceral organs and blood vessel plexus exist in an anastomosis operation area, bleeding and rectal injury can be caused due to careless operation, and the risk is high. Urinary surgeons who have begun laparoscopic surgery have a very challenging bladder neck-urethra anastomosis procedure, sometimes with anastomosis times as long as several hours, and even experienced surgeons wish to find a quick, simple, safe and effective anastomosis method. Scholars constantly think about how to make the anastomosis operation simpler and more convenient, the efficiency is higher and the postoperative complications are less.

At present, most operators complete bladder neck urethra anastomosis under the guidance of a balloon catheter, but since the angle, the position and the like of an inserted needle are difficult to master, beginners often have no need to lead, spend a large amount of time and still cannot reach the expected or correct angle, anastomosis difficulty is easily caused, even the anastomosis effect is poor due to the reasons of uneven distribution of stitches and the like, the leakage of urine from an anastomotic orifice after an operation is easy to occur, even secondary anastomotic orifice stenosis is caused, and great pain is brought to patients.

Some of the patients also use a home-made urethral guide probe to perform the bladder neck-urethral anastomosis. 1 blunt ordinary metal urethral probe of F18 is laser drilled in the center of the top to form an anastomotic guide hole with the diameter and depth of about 1 mm. When the bladder neck and the urethra are anastomosed, the needle point of the suture needle is poked into the guide hole, the probe is slightly withdrawn, the suture needle is introduced into the urethra by about 5mm, the suture needle is rotated at a preset point position to be sutured into the inner wall of the urethra, and the suture needle is attached between the outer membrane of the urethra and the surrounding striated sphincter to accurately discharge the needle. Needles are respectively inserted at the points 3, 5, 7, 9, 11 and 1 of the bladder neck, the needles are taken out from the corresponding positions of the urethra, and the continuous suture is carried out to complete the anastomosis of the bladder neck and the urethra from inside to outside. The method needs an assistant to repeatedly enter and exit the urethral probe back and forth, the distribution of the suture lines is not uniform, and the depth of the sutured urethra is not symmetrical.

Disclosure of Invention

The invention aims to solve the technical problem of providing a urethral anastomosis guider with uniform suture and convenient anastomosis.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the urethral anastomosis guider comprises a main body, wherein a groove is formed in the periphery of one end of the main body, and the grooves are formed in the circumferential direction of the main body in a plurality of ways. The recess be 6, and evenly distributed in the circumference of main part one end. The main part sets up the groove part and is the portion of bending, and the groove setting position is 30 °, 90 °, 150 °, 210 °, 270 °, 330 ° contained angle respectively with the portion of bending direction of bending.

The invention has the beneficial effects that: when the urethra is anastomosed, the operator inserts the needle from the inner urethral membrane, and the suture needle slides along the radian of the groove to pass through the whole urethral layer and then is discharged from the outer urethral membrane. The use of the guiding device can greatly reduce the difficulty of the bladder neck urethra anastomosis. Because of the existence of the groove, the position of the needle inserting and withdrawing is fixed, the distribution position of the suture is relatively uniform, the guiding device is withdrawn after continuous suture, and the suture is tightened and knotted after the urinary catheter is placed. The method ensures that each needle suture is uniformly distributed on one circle of urethra, the urethra mucous membrane and the bladder mucous membrane are well jointed, and the situations of urine leakage or anastomotic stenosis and the like caused by poor jointing of the mucous membranes after operation are prevented.

Drawings

FIG. 1 is a schematic structural view of the main body of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural diagram of the cap of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples.

The urethral anastomosis guider as shown in fig. 1-3 comprises a main body 1, wherein a plurality of grooves 11 are arranged on the periphery of one end of the main body 1, and are distributed in the circumferential direction of the main body in an annular array. The groove is arranged to facilitate needle discharge.

The grooves 11 are 6 and are uniformly distributed in the circumferential direction of one end of the main body 1. The 6 grooves 11 are uniformly distributed, so that the anastomosis degree after the urethral suture is better, and the patient can recover quickly.

The main body 1 is provided with a groove 11 part which is a bending part, the arrangement positions of the groove 11 are respectively 30 degrees, 90 degrees, 150 degrees, 210 degrees, 270 degrees and 330 degrees of included angles with the bending direction of the bending part, namely when the bending part is placed downwards, the positions of the groove 11 are respectively the positions of 1, 3, 5, 7, 9 and 11 points of an hour hand when the pointer clock is in positive swing. The angle between the bending part and the main body is any value between 60 degrees and 85 degrees. The diameter of the main body 1 is preferably 7mm, the length of the top end groove 11 is preferably 10mm, the groove walls are arc-shaped, the angle is 90 degrees, the groove width is 0.5mm, the groove interval is preferably 0.68mm,

the end surface of the part of the main body 1 provided with the groove 11 is of a plane or hemispherical structure. The main body 1 is made of metal.

Still include cap 2, cap 2 cup joints and sets up recess one end at main part 1. The cap 2 is made of plastic materials. Diameter 7mm, wall thickness 0.5 mm.

Normally, the base portion and the top portion are in a combined state. When in use, the top end of the cap is lubricated and then placed into the pelvic cavity along the urethra, and the cap is taken down to expose the groove at the top end of the main body. When in anastomosis, the top end of the main body is slightly exposed out of the broken end of the urethra, the suture needle enters and exits from the outside of the bladder neck, then the suture needle penetrates through the whole layer of the urethra along the entrance and the exit of the guide suture groove, and the urethra is uniformly sutured to six points of 3, 5, 7, 9, 11 and 1 along the 6 suture grooves. And (5) tightening the suture, knotting, withdrawing the guider and placing the balloon catheter.

The use of the guiding device can greatly reduce the difficulty of the bladder neck urethra anastomosis. Due to the existence of the groove, the positions of the needle insertion and the needle withdrawal are fixed, the distribution positions of the stitches are relatively uniform, and the condition of missed stitches is not easy to occur. Meanwhile, as the groove is arc-shaped, the tail of the self-stitching needle can be pushed into the urethra of a patient with partial pelvis difficult to be stitched along the radian of the groove, thereby avoiding the traditional rotary needle stitching and further reducing the difficulty of stitching.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to explain the principles of the invention, and that various modifications and alterations can be made by those skilled in the art without departing from the spirit and scope of the invention.