CN210019485U

CN210019485U - Urethra anastomotic guiding device

Info

Publication number: CN210019485U
Application number: CN201822152158.7U
Authority: CN
Inventors: 于德新; 张涛; 王�琦; 马嘉兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2020-02-07
Anticipated expiration: 2028-12-21

Abstract

The utility model belongs to the technical field of medical instrument, it is big and the identical bullnose of urethra convenient to urethra that provides to the identical bullnose of current urethra, including the main part, a main part tip periphery is equipped with the recess, the recess distribute in the circumference of main part for a plurality of and annular array. 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 utility model has the advantages 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.

Description

Urethra anastomotic guiding device

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a urethral anastomosis guide.

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.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a urethra anastomosis guide device with uniform suture and convenient anastomosis.

In order to realize the purpose, the utility model adopts the technical scheme that:

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 utility model has the advantages 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 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 should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that simple modifications and substitutions by those skilled in the art are within the scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. Urethra guide ware that coincide, including the main part, its characterized in that: the periphery of a main body end is provided with a groove, the grooves are a plurality of and distributed in the circumferential direction of the main body, and the cross section of each groove is of an arc-shaped structure.

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, wherein: the end face of one end of the main body arrangement groove part is of a hemispherical structure.

6. 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.

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

8. The urethral anastomosis guide according to claim 6, wherein: the cap is made of plastic materials.

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