CN206304213U

CN206304213U - Visualization is accurately positioned prostate dilator

Info

Publication number: CN206304213U
Application number: CN201620828563.4U
Authority: CN
Inventors: 李梦强; 江绍钦; 许恩赐
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-02
Filing date: 2016-08-02
Publication date: 2017-07-07
Anticipated expiration: 2026-08-02

Abstract

The utility model is related to a kind of prostate dilator, specifically for a kind of prostate dilator with visualization accurate positioning function.Main body of the present utility model is provided with the dilator of catheterizing port for leading section, and catheterizing port is connected with dilator internal pipeline；The periphery of dilator is arranged with for dilator to be fixed on into endo-urethral fixed capsule and capsule is split for the expansion that urethra is split in expansion from front to back；The periphery of dilator is additionally provided with the locating sleeve for being movably set in and expanding and split capsule periphery and the relative dilator axial movement of energy；It is provided with that fixed capsule connection chamber that capsule connect is split in front end with fixed capsule and expansion respectively and capsule connection chamber is split in expansion in dilator, fixed capsule connection chamber and expanding splits capsule and connects the rear end in chamber and is in communication with the outside；Catheterizing port is located at the front of fixed capsule.The utility model is able to ensure that expansion splits capsule positioned at prostatic urethra and the length of capsule expansion is split in expansion and patient's prostatic urethra keeps accurately mate, and can be employed without secondary intubation as catheter after surgery.

Description

Visualization is accurately positioned prostate dilator

Technical field

The utility model is related to a kind of prostate dilator, before a kind of accurate positioning function with visualization Row gland dilator.

Background technology

Per urethra water pocket expands art and expands art also known as prostatic urethra and membranous urethra, is prostatitis relatively advanced at present Gland prolotherapy technology, is also unique operation for retaining former internal organs in many operations of prostate, and wound is atomic, and operating time is short, Safety coefficient is high, increasingly becomes Benign Prostatic Hypertrophy and solves a kind of dysuric effective ways, and this is also simultaneously It is unwilling to cut off prostata tissue or the with age weak ideal chose for not being resistant to resection operation patient.

And most important operating theater instruments is prostate dilator during prostate expands art, current existing dilator is equal There are following three big defects：

1. problem is accurately positioned：The Guan Jun that puts of existing dilator is to rely on the personal technology of medical personnel, and conduit is The no position that has been placed in is judged by subjective intuition and experience, thus puts pipe complex operation, and the technical ability to doctor will Ask high and put pipe deviation ratio greatly, and put that pipe is inaccurate, the prostate of part hyperplasia can be caused not expanded so that performing the operation Effect declines, it is also possible to trigger urine control to damage and urethral injury because non-prostatic urethra is excessively expanded.

Such as China Patent No. is 201010578449.8, the hair of entitled " composite columnar aqueous capsule prostate dilation catheter " Bright patent discloses a kind of dilator, and it is make use of after the water pocket water filling expansion of front portion so as to urethra be expanded, and is similar to If the position of such dilator utricule for being expanded urethra using a balloon inflation has deviation so to will some Urethra do not expanded or damaged urethra.

2. water pocket expansion deviation problem：Once the water pocket deviation of prostate dilator, then water pocket head can have Segment stretches to the situation of bladder, and because the space of bladder is larger, endo-urethral space is smaller, may result in positioned at this at two The pressure of water pocket has differences, thus liquid can be by " crowded " in the water pocket of bladder side when water filling, and this just leads Cause the expansion skewness of whole water pocket, and expand the effect split positioned at the smaller urethra that will have a strong impact on of urethra portion water pocket expansion Really.From the above, it can be seen that this kind of using the dilator expanded to urethra after water pocket or air bag expansion in the prior art Above variety of problems why occurs, it is critical for not solving the problems, such as that utricule positions it and cannot ensure that utricule can be proper The problem for matching with the prostatic urethra length of each patient just positioned at the length of prostatic urethra and utricule well.

3. urinary catheter problem is changed：Existing dilator is after the completion of operation is expanded because without fixation balloon, being required to Catheter is extracted and reinserted, conduit is repeatedly plugged in the urethra of patient which results in once performing the operation, held very much Easily cause the secondary damage of patient's urethra.

Utility model content

The purpose of this utility model is：A kind of prostate dilator with visualization accurate positioning function is provided, It is able to ensure that expansion splits capsule and is located exactly at prostatic urethra and expands the length and the holding of patient's prostatic urethra for splitting capsule expansion Accurately mate, and can be employed without secondary intubation as catheter after surgery.

The utility model is achieved through the following technical solutions：A kind of prostate expansion with visualization accurate positioning function is split Conduit, it is characterised in that：

Its main body is provided with the dilator of catheterizing port for leading section, and catheterizing port is connected with dilator internal pipeline；

The periphery of dilator be arranged with successively from front to back for by dilator be fixed on endo-urethral fixed capsule and Capsule is split in the expansion that urethra is split for expanding；The periphery of dilator is additionally provided with to be movably set in expansion and split capsule periphery and relative can expand split and lead The locating sleeve of pipe axial movement；

Front end is provided with the dilator and splits fixed capsule connection chamber and expansion that capsule is connected with fixed capsule and expansion respectively Capsule connection chamber is split, the rear end that capsule connection chamber is split in fixed capsule connection chamber and expansion is in communication with the outside；The catheterizing port is located at fixed capsule Front.

Herein for ensure expansion split capsule can be applied to different size of prostate, thus expand row capsule physical length be more than Common prostatic urethra.

Its operation principle and process are as follows：

It uses step as follows：

Step one：As shown in figure 3, inserting the urethra of patient at urethral orifice by locating sleeve from prostate, and ensure At least put the position that urethra couples with bladder in locating sleeve front end.

Step 2：As shown in figure 4, dilator is stretched into until the front portion of dilator is located at bladder from locating sleeve Untill；

Step 3：As shown in figure 5, now connect saline injection in chamber to fixed capsule to make to fix capsule expansion, work as fixation Remained after capsule expansion fully and pull dilator backward, fixed capsule will be stuck at bladder outlet just, so as to complete expansion split Conduit is in the endo-urethral positioning for pre-fixing and capsule leading section being split to expansion；(front end and fixed capsule that capsule is split due to expanding border on, when Fixed capsule is stuck in and also implies that expansion splits the front end of capsule and is located exactly at the top of prostatic urethra and urinates when at opening of bladder just The position that road couples with bladder).

Step 4：As shown in fig. 6, by locating sleeve to slowly being extracted out outside urethra until the front end face of locating sleeve is moved back just Go out to the musculus sphincter of external urethra is outer, so as to complete to expand the positioning for splitting capsule rearward end；(preoperative imageological examination can be borrowed herein The prostate length of the results verification patient with operation, extracts locating sleeve out during operation to should can after the distance of length backward Ensure that prostatic urethra is exited in the front end of locating sleeve just, and capsule is split in the expansion for being now placed in this part outside prostatic urethra Sleeve pipe is positioned tightly to wrap up, even if thus split intracapsular water filling to expansion, then the expansion of part splits capsule also not in locating sleeve Can expand, " rearward end " when also implying that expansion splits that capsule is actual to be expanded is located exactly at the distal end position of prostatic urethra Put, so as to will not also damage other urethras while realizing being accurately positioned.)

And expand to split injection liquid in capsule connection chamber and make expansion split capsule backward and slowly expand so that gradually by whole urethra prostate Portion expands, and is completed until prostate expands operation；

Step 5：As shown in fig. 7, expansion is split into intracapsular liquid release, and after locating sleeve is detached by the utility model after It is continuous to be retained in patient's body, dilator is used directly as catheter.

In order to preferably implement this programme, following prioritization scheme is also provided：

Further, the flushing chamber for being rinsed to urethra is additionally provided with the dilator, the one end in chamber is rinsed The rearward end of dilator is located at positioned at the leading section of dilator and the other end that is in communication with the outside and be in communication with the outside.

In operation, medical personnel can inject flushing liquor so as to the convenient bladder to patient is rushed to rinsing in chamber Wash.

Further, the dilator by positioned at it is anterior for extending into endo-urethral flexible inner tube and being located at after Portion for be exposed at outside urethra rigid outer tube composition, rigid outer tube can conveniently put pipe and provide pinpoint.

Here, dilator is divided into flexible inner tube and rigid outer tube, why is to hinder using flexible inner tube Evil to urethra and it is postoperative can as common urinary catheter indwelling, and why be because rigid outer tube can complexed metal using rigid outer tube Core expands device and uses as urine, and rigid outer tube is provided to be accurately positioned and regulate and control expansion and splits capsule length.

Flexible inner tube can generally be made using materials such as silica gel, rubber, flexible plastics, and rigid outer tube generally can be using hard The material such as plastics or metal material makes.

Further, the locating sleeve is made up of rigid material, and locating sleeve is provided with for locating sleeve and expansion Split the locking mechanism that both conduits displaced posi is locked or unlocked.

The effect of locking mechanism is to prevent from locating sleeve from slip no longer occurring after desired position is backed to produce positioning Raw error, while solving a hand for releasing medical personnel, makes it and is no longer used always to need fixed position between the two Grasping.

Locking mechanism has many kinds, such as clip, fastening screw, threaded connection, latch fixation etc..

Preferably, the locking mechanism is the fastening screw being arranged on locating sleeve.

Further, prevent locating sleeve from producing slip to cause with the relative movement frictional force for splitting capsule is expanded to reach increase Positioning is more accurate, and the anterior tube wall surrounding of the locating sleeve is laid with several sieve apertures.

Further, also including the sleeve pipe gatherer for locating sleeve to be inserted urethra；

Described sleeve pipe gatherer is included for being placed on leading in locating sleeve body and by locating sleeve feeding urethra To core and the hand holding handle being connected with guiding core rearward end integral type, the junction being oriented between core and hand holding handle is provided with a use In the positive stop lug boss that limitation locating sleeve is slided backward.

Here, as shown in figs. 10-11, the effect of sleeve pipe gatherer is for convenience to insert in urethra locating sleeve； And it is easy to use, its application method is to be nested with locating sleeve be oriented on core, is then directed to core and is inserted from urethral orifice Locating sleeve is directed into urethra, can be directed to core when the front end of locating sleeve reaches the near-end of urethra outwards extracts out, The front portion of locating sleeve can be now retained in prostatic urethra.

And first insert after locating sleeve that to place into dilator be also another inventive point of the utility model here, it is fixed here Position sleeve pipe not only has the effect of positioning, also with the effect for preventing urethra from urinating mucosa injury；

The existing usual entire body of dilator makes by silica gel or rubber, and due to expanding, to split capsule part more prominent, therefore surface It is more coarse, thus when existing these dilators directly being inserted into urethra, between the surface of dilator and urethral mucosa The larger easy damage urethral mucosa of frictional force, and there are some patientss easily to occur via causing operative failure.

And locating sleeve is typically with metal material and is made in the utility model, surface is smooth, and rigid material makes to put Fashionable front angle is controllable, thus easy damaged urethral mucosa is not allowed when locating sleeve inserts urethra, and puts pipe success rate Height, and after locating sleeve is inserted in place, then avoid more coarse expansion from splitting by from positioning conduit dilator The damage for largely rubbing and causing urethral mucosa is produced between conduit and urethra.

Preferably, core is oriented to for convenience preferably insert urethra while avoiding causing the damage of urethral mucosa, it is described to lead To the anterior of core with, to be flexibly connected, being oriented to the anterior of core can be upturned relative to the rear portion for being oriented to core between rear portion.

Here, first locating sleeve is nested with and is being oriented on core, urethra is inserted after the anterior tilting of core is then directed to again.

Preferably, the grasping of medical personnel for convenience, handle is installed with outside the locating sleeve.

Preferably, in order that medical personnel can more accurately calculate the amount of exiting of locating sleeve, the dilator Outer surface subscript be provided with along dilator length direction extend scale.

Before relatively for technology, the beneficial effects of the utility model are：

1. the utility model is engaged with locating sleeve using fixed capsule and is able to ensure that expansion splits capsule and is located exactly at urethra prostatitis Gland portion and expand and split the length of capsule and match with the prostatic urethra length of patient just, so as to greatly reduce operation technique Difficulty, and realize that visualization is accurately positioned.

2. the utility model is after the completion of prostate expands art, due to being provided with fixed capsule, it is possible to be directly retained in trouble Is used as catheter in person's body, it is to avoid secondary plug is damaged to patient's urethra；

3. the utility model is that dilator is inserted into endo-urethral indirectly by locating sleeve, splits so as to avoiding expansion and leads The damage brought to urethra when pipe is inserted directly into urethra, and improve success rate of operation.

Brief description of the drawings

Fig. 1 is the front view of embodiment 1；

Fig. 2 is the schematic cross-section of Fig. 1；

Fig. 3 is the state diagram in embodiment 1 using step one；

Fig. 4 is the state diagram in embodiment 1 using step 2；

Fig. 5 is the state diagram in embodiment 1 using step 3；

Fig. 6 is the state diagram in embodiment 1 using step 4；

Fig. 7 is the state diagram in embodiment 1 using step 5；

Fig. 8 is the schematic cross-section of embodiment 2；

Fig. 9 is the schematic cross-section of embodiment 3；

Figure 10 is the middle sleeve gatherer use state figure one of embodiment 4；

Figure 11 is the middle sleeve gatherer use state figure two of embodiment 4；

Figure 12 is partial enlarged drawing at A in Fig. 8.

Label declaration：1- dilators, 11- catheterizing ports, 12- rinse chamber, 13- flexible inner tubes, 14- rigidity outer tube, 15- quarters Degree, 2- fix capsule, 21- fix capsule connection chamber, 3- expand split capsule, 31- expand split capsule connection chamber, 4- locating sleeves, 41- fastening screws, 42- handles, 43- sieve apertures, 51- are oriented to core, 52- hand holding handles, 53- positive stop lug boss.

Specific embodiment

Illustrate to elaborate the utility model below in conjunction with the accompanying drawings：

Embodiment 1：

As shown in figs. 1-7, the main body of the present embodiment is provided with the dilator 1 of catheterizing port 11 for leading section, catheterizing port 11 with The internal pipeline of dilator 1 is connected；

The periphery of dilator 1 is arranged with for dilator 1 to be fixed on into endo-urethral fixed capsule 2 successively afterwards by preceding Capsule 3 is split with the expansion that urethra is split for expanding；The periphery of dilator 1 is additionally provided with and is movably set in expansion and splits the periphery of capsule 3 and can be relative The locating sleeve 4 of the axial movement of dilator 1；

Be provided with the dilator 1 front end split with fixed capsule 2 and expansion respectively the fixed capsule that capsule 3 connect connect chamber 21 with And expand and split capsule connection chamber 31, the rear end that capsule connection chamber 31 is split in fixed capsule connection chamber 21 and expansion is in communication with the outside；The catheterizing port 11 Positioned at the front of fixed capsule 2.

Embodiment 2：

As shown in figure 8, the main body of the present embodiment is provided with the dilator 1 of catheterizing port 11, catheterizing port 11 and expansion for leading section Split the connection of the internal pipeline of conduit 1；

Further, the flushing chamber 12 for being rinsed to urethra is additionally provided with the dilator 1, chamber 12 is rinsed One end is located at the leading section of dilator 1 and the other end that is in communication with the outside is located at the rearward end of dilator 1 and is in communication with the outside.

Embodiment 3：

As shown in figure 9, the main body of the present embodiment is provided with the dilator 1 of catheterizing port 11, catheterizing port 11 and expansion for leading section Split the connection of the internal pipeline of conduit 1；

Further, the dilator 1 by positioned at anterior for extending into endo-urethral flexible inner tube 13 and position Constituted for the rigid outer tube 14 being exposed at outside urethra in rear portion.

Further, the locating sleeve 4 is made up of rigid material, locating sleeve 4 be provided with for locating sleeve 4 with The locking mechanism that both dilator 1 displaced posis are locked or unlocked.

Preferably, the locking mechanism is the fastening screw 41 being arranged on locating sleeve 4.

Embodiment 4：

As shown in figs. 10-11, the main body of the present embodiment is provided with the dilator 1 of catheterizing port 11, catheterizing port 11 for leading section Connected with the internal pipeline of dilator 1；

Further, also including the sleeve pipe gatherer for locating sleeve 4 to be inserted urethra；

Described sleeve pipe gatherer includes for being placed in the body of locating sleeve 4 and locating sleeve 4 being sent into urethra Core 51 and the hand holding handle 52 being connected with the guiding rearward end integral type of core 51 are oriented to, the connection between core 51 and hand holding handle 52 is oriented to Place is provided with one for limiting the positive stop lug boss 53 that locating sleeve 4 is slided backward.

Further, it is installed with handle 42 outside the locating sleeve 4.

Further, the outer surface subscript of the dilator 1 is provided with the scale extended along the length direction of dilator 1 15。

Further, the tube wall surrounding of the front portion of the locating sleeve 4 is laid with several sieve apertures 43.

Further, the expansion to be split and be shaped as column after capsule 3 expands.

Further, the front portion for being oriented to core 51 and between rear portion to be flexibly connected, the front portion of guiding core 51 being capable of phase Rear portion for being oriented to core 51 is upturned.

Although the utility model is illustrated and is illustrated using specific embodiment and its alternative to the utility model, It should be appreciated that can implement without departing from the variations and modifications in scope of the present utility model.Therefore, should manage Being relieved outside limited by appended claims and its condition of equivalent, the utility model is not limited by all senses.

Claims

1. a kind of with the prostate dilator for visualizing accurate positioning function, it is characterised in that：Its main body is leading section The dilator (1) of catheterizing port (11) is provided with, catheterizing port (11) is connected with dilator (1) internal pipeline；

The periphery of dilator (1) is arranged with for dilator (1) to be fixed on into endo-urethral fixed capsule successively afterwards by preceding (2) capsule (3) is split in the expansion for and for expanding splitting urethra；The periphery of dilator (1) is additionally provided with and is movably set in expansion and splits capsule (3) periphery simultaneously And the locating sleeve (4) of relative dilator (1) axial movement of energy；

Front end is provided with the dilator (1) and splits the fixed capsule connection chamber that capsule (3) is connected with fixed capsule (2) and expansion respectively (21) and expand and split capsule connection chamber (31), the rear end that capsule connection chamber (31) is split in fixed capsule connection chamber (21) and expansion is in communication with the outside； The catheterizing port (11) is positioned at the front of fixed capsule (2).

2. according to claim 1 with the prostate dilator for visualizing accurate positioning function, it is characterised in that：Institute The flushing chamber (12) being additionally provided with dilator (1) for being rinsed to bladder is stated, the one end for rinsing chamber (12) is split positioned at expansion The leading section of conduit (1) is simultaneously in communication with the outside, and the other end is located at the rearward end of dilator (1) and is in communication with the outside.

3. according to claim 1 with the prostate dilator for visualizing accurate positioning function, it is characterised in that：Institute State dilator (1) by positioned at anterior for extending into endo-urethral flexible inner tube (13) and being put for revealing positioned at rear portion Rigid outer tube (14) composition outside urethra.

4. according to claim 3 with the prostate dilator for visualizing accurate positioning function, it is characterised in that：Institute State locating sleeve (4) to be made up of rigid material, locating sleeve (4) is provided with for locating sleeve (4) and dilator (1) two The locking mechanism that person's displaced posi is locked or unlocked.

5. according to claim 4 with the prostate dilator for visualizing accurate positioning function, it is characterised in that：Institute It is the fastening screw (41) being arranged on locating sleeve (4) to state locking mechanism.

6. according to claim 1-3 any one with visualization accurate positioning function prostate dilator, its It is characterised by：Also include the sleeve pipe gatherer for locating sleeve (4) to be inserted urethra；

Described sleeve pipe gatherer includes sending into urethra for being placed in locating sleeve (4) body and by locating sleeve (4) Core (51) and the hand holding handle (52) being connected with guiding core (51) rearward end integral type are oriented to, core (51) and hand holding handle (52) is oriented to Between junction be provided with one for limiting the positive stop lug boss (53) that locating sleeve (4) is slided backward.

7. according to claim 1-3 any one with visualization accurate positioning function prostate dilator, its It is characterised by：Handle (42) is installed with outside the locating sleeve (4).

8. according to claim 1-3 any one with visualization accurate positioning function prostate dilator, its It is characterised by：The outer surface subscript of the dilator (1) is provided with the scale (15) extended along dilator (1) length direction.

9. according to claim 1-3 any one with visualization accurate positioning function prostate dilator, its It is characterised by：The anterior tube wall surrounding of the locating sleeve (4) is laid with several sieve apertures (43).

10. according to claim 1-3 any one with visualization accurate positioning function prostate dilator, its It is characterised by：The expansion to be split and be shaped as column after capsule (3) expands.