CN111110298A

CN111110298A - Bladder neck fixer

Info

Publication number: CN111110298A
Application number: CN202010047055.3A
Authority: CN
Inventors: 罗华荣; 顾嬿; 王天如
Original assignee: Shanghai Tongji Hospital
Current assignee: Shanghai Tongji Hospital
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-05-08

Abstract

The invention discloses a bladder neck fixator which mainly solves the problems that time and labor are wasted and anastomotic fistula is easily caused in the traditional bladder neck constriction and bladder neck and urethra anastomosis operation. A bladder neck fixator comprises a circular base, a plurality of circular upright columns uniformly and vertically fixed on the upper end surface of the circular ring of the base at intervals, and a first barb, a second barb and a third barb which are arranged on the inner side of any upright column and are distributed up and down; the structure of first barb, second barb and third barb is the same, first barb is right angled triangle, and the right angle is located the right angled triangle lower extreme. Through the scheme, the invention achieves the purposes of time and labor saving, good effect and difficult fistula anastomosis in the bladder neck constriction and bladder neck and urethra anastomosis operations, and has very high practical value and popularization value in the field of medical instruments.

Description

Bladder neck fixer

Technical Field

The invention relates to the field of medical instruments, in particular to a bladder neck fixator.

Background

Prostate tumors include tumors of epithelial or mesenchymal origin in the prostate, and most are malignant tumors including prostate cancer, prostasarcoma, and the like. Prostate cancer patients are mainly elderly men with symptoms of hematuria and dysuria. At present, the incidence of prostate malignant tumor is on the trend of increasing year by year in China, and the prostate malignant tumor accounts for the first place in male urinary system tumor, the mortality is the first, and the most effective treatment mode for the disease is radical prostate cancer therapy. The prior art procedure mainly comprises 2 parts: prostatectomy and cystocervical urethral anastomosis; as is well known, the prostate is located deep in the pelvic cavity, which is structurally fixed; the operation space is narrow, the prostate is difficult to cut by open surgery, and the urinary tract anastomosis difficulty of the neck of the bladder is higher; however, conventional anastomosis techniques: after prostatectomy, the bladder neck was sutured closed, and then 6-point interrupted sutures were applied to the bladder neck and urethra.

At present, the traditional bladder neck and urethra anastomosis has the defects of narrow pelvic cavity space, high anastomosis difficulty, time and labor waste; after 6 point silk threads are intermittently sutured, deep knotting of the silk threads is needed, 2 nd and 3 rd anastomotic points are located on the deep surface of an anastomotic stoma, knotting often cannot be completed and tightened, anastomotic effect is affected, anastomotic effect is not exact, and anastomotic fistula and other problems are easily caused.

Therefore, there is a need for a device that is time and labor efficient and that can effectively fit the bladder neck and the urethra periphery.

Disclosure of Invention

Aiming at the problems, the invention aims to provide a bladder neck fixator, and adopts the following technical scheme:

a bladder neck fixator is characterized by comprising a circular base, a plurality of circular upright columns uniformly and vertically fixed on the upper end surface of the circular ring of the base at intervals, and a first barb, a second barb and a third barb which are arranged on the inner side of any upright column and are distributed up and down; the structure of first barb, second barb and third barb is the same, first barb is right angled triangle, and the right angle is located the right angled triangle lower extreme.

Preferably, the number of the upright posts is 6.

Preferably, base, stand, first barb, second barb and third barb adopt the nickel titanium alloy material.

Preferably, the distance between first barb and the base is 5mm, the distance between first barb and the second barb is 10mm, and the institute sets up against the second barb with the third barb.

Compared with the prior art, the invention has the following beneficial effects:

(1) the nickel-titanium alloy material is adopted, so that the strength of the fixator is ensured, and the fixator has certain toughness;

(2) the invention selects six upright posts, is matched with an equidistant 6-needle continuous anastomosis method adopted in the traditional operation, and is suitable for the existing treatment habit;

(3) the first barbs are ingeniously arranged, so that the bladder neck tissue is effectively fixed, the effect of narrowing the bladder neck through a suture in the traditional operation is realized, and the purpose of rebuilding the bladder neck is achieved;

(4) the second barb and the third barb are ingeniously arranged to fix the neck of the bladder around the urethra, so that the effect of the coincidence of the neck of the bladder and the urethra in the traditional operation is realized;

(5) the invention is skillfully provided with the base which presents an annular structure so as to be convenient for the use of the urine dilator in the operation;

(6) the invention can realize the effects of bladder neck constriction and bladder neck and urethra anastomosis, and is time-saving and labor-saving;

(7) the invention can replace the traditional operation mode of deep manual anastomosis knotting, effectively fix the neck of the bladder around the urethra and realize the anastomosis effect;

(8) the invention can be applied to the anastomosis process of the prostate cancer radical operation under the laparoscope, shortens the operation time and solves the technical difficulty of the anastomosis of the bladder neck and the urethra under the laparoscope.

The invention has simple structure, safety and reliability, and has high practical value and popularization value in the field of medical instruments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of protection, and it is obvious for those skilled in the art that other related drawings can be obtained according to these drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of the present invention.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-base, 2-column, 3-first barb, 4-second barb, 5-third barb.

Detailed Description

To further clarify the objects, technical solutions and advantages of the present application, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Examples

As shown in FIG. 1, the present embodiment provides a bladder neck fixator. In the present embodiment, the terms "first", "second", and the like are used only for distinguishing the similar components, and are not to be construed as limiting the scope of protection. In the present embodiment, the terms of orientation such as "bottom", "top", "peripheral edge", "center", and the like are explained based on the drawings.

The bladder neck fixator comprises a circular base 1, a plurality of annular upright posts 2 which are uniformly and vertically fixed on the upper end surface of the circular ring of the base 1 at intervals, and a first barb 3, a second barb 4 and a third barb 5 which are arranged on the inner side of any upright post 2 and are vertically arranged; first barb 3, second barb 4 and third barb 5's structure is the same, first barb 3 is right angled triangle, and the right angle is located the right angled triangle lower extreme.

Specifically, stand 2 is 6, and base 1, stand 2, first barb 3, second barb 4 and third barb 5 adopt the nickel-titanium alloy material, and distance 5mm between first barb 3 and the base 1, first barb 3 and second barb 4 between distance 10mm, institute and third barb 5 are close to the second and are fallen thorn 4 setting.

During operation, at first with bladder neck fixer base 1 down, barb structure up, put into bladder neck fixer base 1 through bladder neck mouth, get 6 puncture points of bladder neck mouth equidistant, puncture point is apart from bladder neck mouth about 3-4mm, penetrates 6 puncture points with 6 first barb 3 one by one, and fixed bladder neck tissue reaches the effect of constricting bladder neck, has realized the reestablishment of bladder neck.

Then, the barb structure and the opening of the fixed bladder neck tissue face to the urethra and are placed in a horizontal position, a metal urine expander is placed in the urethra, the head end of the metal urine expander is placed in the anastomotic opening of the pelvic cavity, the bladder neck with the base 1 is sleeved with the head end of the metal urine expander, the second barb 4 and the third barb 5 penetrate into tissues around the urethra under the guide of the metal urine expander, the bladder neck is fixed around the urethra through the second barb 4 and the third barb 5, the anastomosis of the bladder neck and the urethra in the operation is completed, the bladder neck fixator adopts a nickel-titanium alloy material which is harmless to a human body and can be placed in the body for a long time without being taken out.

In conclusion, the invention fills the technical blank of the device for wireless anastomosis of the neck part and the periphery of the urethra in the radical prostate cancer operation, has prominent substantive characteristics and obvious progress compared with the prior art, and has high practical value and popularization value in the field of medical appliances.

The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the scope of the present invention, but all the modifications made by the principles of the present invention and the non-inventive efforts based on the above-mentioned embodiments shall fall within the scope of the present invention.

Claims

1. The bladder neck fixator is characterized by comprising a circular base (1), a plurality of circular upright posts (2) which are uniformly and vertically fixed on the upper end surface of a circular ring of the base (1) at intervals, and a first barb (3), a second barb (4) and a third barb (5) which are arranged on the inner side of any upright post (2) and are distributed up and down; the structure of first barb (3), second barb (4) and third barb (5) is the same, first barb (3) are right angled triangle, and the right angle is located the right angled triangle lower extreme.

2. A bladder neck fixator according to claim 1, wherein the number of columns (2) is 6.

3. The bladder neck fixator according to claim 1, wherein the base (1), the upright (2), the first barb (3), the second barb (4) and the third barb (5) are made of nitinol.

4. A bladder neck fixator according to claim 1, wherein the first barb (3) is located at a distance of 5mm from the base (1), the first barb (3) is located at a distance of 10mm from the second barb (4), and the third barb (5) is located next to the second barb (4).