CN211460343U

CN211460343U - Bladder neck fixer

Info

Publication number: CN211460343U
Application number: CN202020092808.8U
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: 2020-09-11
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a bladder neck fixer has mainly solved and has wasted time and energy, and lead to the problem of identical mouthful fistula easily in traditional bladder neck constriction and bladder neck and the identical operation of urethra. 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. By the proposal, the utility model discloses a bladder neck constriction and bladder neck coincide operation labour saving and time saving, effectual, be difficult to the mesh of identical mouthful fistula with the urethra, have very high practical value and spreading value in the medical instrument field.

Description

Bladder neck fixer

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to a bladder neck fixer.

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.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a bladder neck fixator, which has 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 utility model discloses following beneficial effect has:

(1) the utility model adopts nickel-titanium alloy material, which not only ensures the strength of the fixer, but also ensures the fixer to have certain toughness;

(2) the utility model selects six upright posts, is matched with the equidistant 6-needle continuous anastomosis technique adopted in the traditional operation, and is suitable for the existing treatment habits;

(3) the utility model is skillfully provided with the first barbs, effectively fixes the tissues of the neck of the bladder, realizes the effect of narrowing the neck of the bladder by sutures in the traditional operation, and achieves the aim of rebuilding the neck of the bladder;

(4) the utility model is skillfully provided with the second barb and the third barb to fix the bladder neck around the urethra, thereby realizing the matching effect of the bladder neck and the urethra in the traditional operation;

(5) the utility model is skillfully provided with the base which presents an annular structure, thereby being convenient for the use of the urine dilator in the operation;

(6) the utility model can realize the effects of bladder neck constriction and bladder neck and urethra anastomosis, and save time and labor;

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

(8) the utility model discloses can apply to the identical in-process of prostate cancer radical operation under the peritoneoscope, shorten the operation time, solve the anastomotic technical difficulty of bladder neck and urethra under the peritoneoscope.

The utility model has simple structure, safety and reliability, and has very high practical value and popularization value in the field of medical appliances.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for 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 a limitation of the scope of protection, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.

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 make the objectives, technical solutions and advantages of the present application more clear, 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.

To sum up, the utility model discloses fill the technical blank of wireless anastomotic bladder neck and the device around the urethra in prostatic cancer radical operation, compared with prior art, have outstanding substantive characteristics and the progress that is showing, had very high practical value and spreading value in the medical instrument field.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not limitations on the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis shall fall within the protection 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).