CN201481478U

CN201481478U - Postoperative urethral anastomosis guider

Info

Publication number: CN201481478U
Application number: CN2009201473986U
Authority: CN
Inventors: 潘进洪; 陈志文
Original assignee: First Affiliated Hospital of TMMU
Current assignee: Third Military Medical University TMMU; First Affiliated Hospital of TMMU
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-05-26
Anticipated expiration: 2019-04-24

Abstract

The utility model relates to an auxiliary surgical instrument for guiding a suture needle in and out after laparoscopic bladder urethral anastomosis and urethral anastomosis after open surgery, in particular to a postoperative urethral anastomosis guider, which comprises a cylindrical body part and a head part which are integrated. The head part is provided with a top end; the top end of the head part is provided with a U-shaped groove positioned on the middle part of the top end of the head part; and two sides of the U-shaped groove are provided with supporting arms. The postoperative urethral anastomosis guider adopting the technical scheme can assist in completing the postoperative urethral anastomosis, guide different parts anastomosing the urethra sutured by needles to avoid the disadvantages and shortcomings of using ureter or urethral sound for supporting, improves the anastomosis efficiency, reduces the operating difficulty and ensures the anastomosis effect.

Description

Back urethra anastomosis guide

Technical field

This utility model relates to a kind of when being used for after peritoneoscope bladder urethra anastomosis and the open surgery urethra anastomosis, and the para-operational device of guiding suture needle turnover is specifically related to a kind of back urethra anastomosis guide.

Background technology

In traumatic posterior urethral stricture, carcinoma of prostate radical correction process, need carry out the back urethra anastomosis, but because the back urethra is positioned at pelvic cavity, in the small space between bladder and pelvic diaphragm muscle, the position is dark and diameter is less, cut off back urethra inner chamber and generally be closure state again, cause the visual field bad to operative doctor, at inserting needle, go out pin and can't judge the urethra chamber often, the comparatively difficulty of coincideing, identical inefficiency, match result is uncertain.

The way of common solution is in the operation at present, before the inserting needle that coincide, in the urethra of back, insert supporter in the urethras such as urinary catheter or urethral probe, the urethra chamber is strutted, inserting needle withdraws from urinary catheter or the urethral probe that supports in the urethra simultaneously, can avoid mistake to stitch the urethral wall of offside like this, but the deficiency below also discovery exists in the utilization process: withdrawing from of the first, supporting in inserting needle and the urethra must cooperate tightly, inserting needle is too fast and supporter withdraws from slowly, then the pin mistake may be sewn on the supporter; Otherwise, if inserting needle is slow supporter withdraw from too fast, then can because of the very fast closure in urethra chamber can't inserting needle; The second, during urethra anastomosis, be subjected to the influence of appliance function behind the peritoneoscope bladder, needle angle often is difficult to control, though supporter can guide the turnover of suture needle in the urethra, the control of needle angle is not had help.

The utility model content

The technical problems to be solved in the utility model is, a kind of back urethra anastomosis guide that can form excellent support to urethra is provided, this guide can guarantee the opening in urethra chamber in the urethra anastomosis process, and inserting needle there is certain guiding function, with the shortcoming and defect of avoiding occurring supporting with urinary catheter or urethral probe, improve the efficient of coincideing, reduce operating difficulties, guarantee match result.

In order to solve the problems of the technologies described above, the back urethra anastomosis guide that this utility model provides comprises the cylinder body portion and the head of one, head has the tip, be provided with a U-lag at the tip of head, U-lag is positioned at the most advanced and sophisticated mid portion of head, and the U-lag both sides are formed with support arm.

Adopt the back urethra anastomosis guide of technique scheme, carrying out the back operation on urethra when coincideing, earlier guide is extend into the broken ends of fractured bone place of back urethra, make the head of guide most advanced and sophisticated concordant with the urethra broken ends of fractured bone, the support arm on the both sides of U-lag struts the urethra broken ends of fractured bone at this moment, the space of U-lag can be for the pin turnover that coincide, and guide only need be maintained fixed the position and do not need to pass in and out repeatedly just can be to the sewing needle channeling conduct, thereby has finished the back urethra anastomosis; U-lag also has certain directivity simultaneously, by the rotation guide, can make the different parts of the opening subtend urethra broken ends of fractured bone of U-lag, and the different parts of the pin that coincide being sewed up urethra plays guiding function.This guide can guarantee the opening in urethra chamber in the urethra anastomosis process, and inserting needle is had certain guiding function, and the shortcoming and defect to avoid occurring supporting with urinary catheter or urethral probe improves the efficient of coincideing, and reduces operating difficulties, guarantees match result.

Because back urethra anastomosis guide needs high-precision surface treatment to guarantee its smooth surface degree, for easy to process, further limiting U-lag is groove, be about to the most advanced and sophisticated mid portion of head and excise fully, the back urethra anastomosis guide that is processed into such U-shaped groove can better reach for coincideing pin turnover and to the effect of sewing needle channeling conduct.

Needs according to concrete human body urethra, further, limit dark 0.8 centimetre of described U-lag, wide 0.4 centimetre, the support arm width is 0.2 centimetre, and such guide is made by rustless steel, and support arm has enough intensity that urethra is formed excellent support, the space is the space of the pin turnover that coincide in the U-lag, can guarantee the space that frees in and out of identical pin.

Same reason, because 24F, promptly the Cylinder of 8 millimeters thicknesses of diameter can adapt to most of human urethras' thickness, so further, the diameter of the cylinder body portion of restriction back urethra anastomosis guide is 8mm.

Description of drawings

Below in conjunction with drawings and Examples technical solutions of the utility model are further specified:

Fig. 1 is a urethra anastomosis conductor structure sketch map behind this utility model;

Fig. 2 is that sketch map is looked on Fig. 1 left side.

Among the figure, the 1st, cylinder body portion; The 2nd, cylinder bodily form head; The 3rd, U-lag; The 4th, support arm.

The specific embodiment

As shown in Figure 1 and Figure 2, the back urethra anastomosis guide that this utility model provides comprises the cylinder body portion 1 and the head 2 of one, head 2 has the tip, the diameter of cylinder body portion 1 is 8mm, is provided with a U-lag 3 at the tip of head 2, and U-lag is positioned at head 2 most advanced and sophisticated mid portions, the U-lag both sides are formed with support arm 4, wherein, U-lag 3 is grooves, dark 0.8 centimetre, wide 0.4 centimetre, the width of support arm 4 is 0.2 centimetre.

The utilization of this utility model embodiment has dual mode:

First kind is urethra anastomosis after the open surgery: guide enters the back urethra by bladder and internal urethral orifice, the head 2 of guide is most advanced and sophisticated concordant with the urethra broken ends of fractured bone, U-lag 3 places vertical position, this moment, two support arms 4 of U-lag 3 strutted the urethra broken ends of fractured bone to both sides, the central space of U-lag 3 then can be for the pin turnover that coincide, the rear wall and the antetheca of the back urethra that coincide; The rotation guide can carry out the urethra anastomosis of other directions with the corresponding anastomotic position of notch subtend of U-lag 3.

Second kind is that the bladder neck coincide behind the pneumoretroperitoneum mirror: guide enters the back urethra from anterior urethra, and the head 2 of guide is most advanced and sophisticated concordant with the urethra broken ends of fractured bone, and U-lag 3 places vertical position, and back urethra and neck of bladder rear wall coincide earlier; Rotate guide then, the sidewall of urethra after U-lag 3 is aimed at, the urethra sidewall coincide; Insert urinary catheter at last, neck of bladder and back urethra antetheca coincide.

The back urethra guide of use the technical program can guarantee the opening in urethra chamber in the urethra anastomosis process, and inserting needle had certain guiding function, the shortcoming and defect to avoid occurring supporting with urinary catheter or urethral probe improves the efficient of coincideing, reduce operating difficulties, guarantee match result.

Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from this utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that this utility model is implemented.

Claims

1. back urethra anastomosis guide comprises the cylinder body portion and the head of one, and head has the tip and it is characterized in that: be provided with a U-lag at the tip of head, U-lag is positioned at the most advanced and sophisticated mid portion of head, and the U-lag both sides are formed with support arm.

2. back according to claim 1 urethra anastomosis guide, it is characterized in that: described U-lag is a groove.

3. back according to claim 1 urethra anastomosis guide, it is characterized in that: dark 0.8 centimetre of described U-lag, wide 0.4 centimetre, the support arm width is 0.2 centimetre.

4. back according to claim 1 urethra anastomosis guide is characterized in that: the diameter of described cylinder body portion is 8mm.