CN101810907A

CN101810907A - urethral dilator used together with urethral probe

Info

Publication number: CN101810907A
Application number: CN 201010146658
Authority: CN
Inventors: 郑霁; 陈虹; 熊恩庆; 周占松; 李为兵; 宋波
Original assignee: First Affiliated Hospital of TMMU
Current assignee: Third Military Medical University TMMU; First Affiliated Hospital of TMMU
Priority date: 2010-04-14
Filing date: 2010-04-14
Publication date: 2010-08-25
Anticipated expiration: 2030-04-14
Also published as: CN101810907B

Abstract

The invention provides a urethral dilator used together with a urethral probe. The dilator completely closely covers the urethral probe; the back end of the dilator is provided with a urethral probe insertion port, the back part of the dilator is provided with an air inlet, the middle section of the dilator is provided with an aerating channel connected with the air inlet, and the front end of the dilator is provided with an air cell connected with the aerating channel. The urethral dilator can be used together with the urethral probe with a corresponding size, high-pressure gas or high-pressure liquid can be charged in the inflatable air cell on the premise of detecting the narrow position of the urinary tract by the hard urethral probe to apply the horizontally acting force generated by the expansion of the air cell to the narrow position of the urinary tract, so that the urethral false passage caused when surrounding tissues are much easily damaged as the urethral probe is commonly forced to dilate the narrow position of the urinary tract is effectively avoided, and the effect of dilating the narrow position of the urinary tract is improved. The urethral dilator can be used together with the conventional urethral probe and conveniently produced and used, so that by using the urethral dilator, the occurrence of the iatrogenic urethral false passage is greatly lowered, and the pains in patients are relieved.

Description

The divulsor that a kind of together with urethral probe uses

Technical field

The present invention relates to a kind of divulsor, be specifically related to a kind of urethral probe surface that is socketed on, the divulsor that is used with urethral probe.

Background technology

Urethral stricture is the commonly encountered diseases of Urology Surgery, and the common cause of morbidity is cicatrization etc. after urethral trauma, inflammation, the operation.The method of treatment urethral stricture is numerous, and the simplest and the most the most frequently used method is a dilation of urethra, and the dilation of urethra overwhelming majority just can carry out in outpatient service, adopts the metal urethral probe to expand narrow urethra mostly.But because a variety of causes often has the expansion failure to take place, even urethra massive, the vacation of iatrogenic urethra appear to severe complications such as formation.

The generation that iatrogenic urethra vacation is arrived, the overwhelming majority causes that owing to using the metal urethral probe to expand narrow urethra by force the mode that the urethral probe dilating urethra is narrow is by increasing progressively the model of urethral probe, dilating urethra in proper order.In dilating urethra in proper order; the urethral probe that model is bigger enters and during by the urethral stricture place; urethral probe can followed urethra longitudinal direction " violence " expansion and hold narrow urethra; but owing to be difficult to control the dynamics and the angle of " violence " of this longitudinal direction; usually can the stab normal structure on narrow urethra next door, cause urethra via formation.At present, expand the urethra that causes by force owing to urethral probe via still there not being the effectively preventing means, seriously restricted the use of urethral probe, this has increased many operation troubles for the Urology Surgery doctor, has also caused great spirit, the human body and burden economically to patient and patient family simultaneously.

Summary of the invention

Problem at the prior art existence, the divulsor that the object of the present invention is to provide a kind of together with urethral probe to use, this divulsor can be socketed on the urethral probe surface, vertical " violence " when traditional urethral probe is expanded narrow urethra acts on the horizontal force at urethral stricture place when being converted into airbag inflation, tissue around can not stabbing reaches and prevents that urethra is via the purpose that forms.

For achieving the above object, technical scheme of the present invention is as follows: the divulsor that a kind of together with urethral probe uses, divulsor is the hollow pipe of end sealing, and end face is provided with urethral probe is inserted mouthful, its body is provided with air inlet and link to each other with air inlet inflation duct, divulsor front end and is provided with and inflates the air bag that the duct links to each other thereafter.

Adopt the technique effect that technique scheme reached to be: this divulsor can be used with the urethral probe of corresponding size, can support in the urethral probe of hard and verify under the prerequisite at urethral stricture place, by air inlet and inflation duct gases at high pressure or highly pressurised liquid are injected swelling gasbag, thereby the horizontal force that makes airbag inflation is used for the dilating urethra stenosis, can prevent effectively that tradition from utilizing urethral probe " violence " merely thus during the dilating urethra stenosis as easy as rolling off a log injure surrounding tissue form urethra via, and improved the effect of dilating urethra stenosis, reduced greatly iatrogenic urethra via appearance, reduced patient's misery; And the present invention can cooperate existing urethral probe to use, and can be convenient to produce and use.

Further, described urethral probe insertion mouth is funnel-form.Inserting the funnel-form design of mouth can the handled easily person insert urethral probe in this divulsor like clockwork, for the operator has saved the time, provides convenience.

Further, described air inlet is provided with the sealing ring of the air inlet pipe that is used to be tightly connected.Because urethral stricture place expansion needs bigger active force, so air inlet need the to be tightly connected sealing ring of air inlet pipe, can prevent gas leakage, the phenomenon of leakage of gases at high pressure or highly pressurised liquid.

Further, the wall thickness of described divulsor is 0.2mm～0.3mm.Divulsor with certain wall thickness can wrap up and support the urethral probe of insertion, and has certain rigidity, can enter urethra along with urethral probe.

Further, described inflation duct is arranged on an airtight hollow pipeline in the urethral dilatation wall.Because the wall of divulsor has certain thickness, so aerating pipe can be arranged in this urethral dilatation wall, and such design can guarantee the surface socket fully of divulsor inwall and urethral probe, does not also influence the normal use in inflation duct simultaneously.

Further, described air bag is the cavity in the dilator front bulkhead.Because the wall of divulsor has certain thickness, so air bag is arranged on the cavity in the dilator front bulkhead, and this cavity is a confined space that only is connected with the inflation duct, and gases at high pressure or highly pressurised liquid can pour in this air bag by inflating the duct; And, can guarantee to have in use enough intensity can verify the urethral stricture place because the setting of this air bag can guarantee the applying fully of divulsor front inner wall and urethral probe.

Further, described divulsor adopts silica gel to make.Can fully the fit surface of urethral probe of the divulsor that adopts rubber-like silica gel to make makes the urethral probe of this divulsor and insertion become the integral body that can enter and expand the urethral stricture place.

Description of drawings

The present invention is described further below in conjunction with the drawings and specific embodiments:

Fig. 1 is the sketch map of the divulsor of a kind of together with urethral probe use of the present invention;

Fig. 2 is the user mode figure of the divulsor of a kind of together with urethral probe use of the present invention;

Fig. 3 is the partial enlarged drawing of Fig. 1.

The specific embodiment

As shown in Figure 1, the divulsor that a kind of together with urethral probe of the present invention uses, whole divulsor is the sleeve pipe of hollow, makes with silica gel, wall thickness is 0.3mm, has certain rigidity and elasticity, can be socketed in the outer surface of urethral probe fully.Have a urethral probe to insert mouthful 1 at the rear end face of divulsor, and this urethral probe inserts mouthful 1 and be funnel-form, its larger cross-section end is outside, and this funnel-form design can make things convenient for user that urethral probe is inserted in the divulsor.The rear portion of expanding divulsor at gasbag-type is provided with an air inlet 2, and this air inlet 2 is provided with a sealing ring, and this air inlet 2 is used to connect gases at high pressure or highly pressurised liquid outlet, and the sealing circle is used to guarantee that air inlet 2 is in sealing state in use.Be provided with the inflation duct 3 that links to each other with air inlet in the stage casing of divulsor, as the dotted line among Fig. 1 or Fig. 2 represented promptly be the inflation duct 3, this inflation duct 3 is connected as a whole with air inlet 2, inflation duct 3 is arranged in the wall in divulsor stage casing, because the urethral dilatation wall has certain thickness, therefore inflate duct 3 and be arranged in the wall, can guarantee that the inwall of divulsor does not have outthrust, its inwall and urethral probe can be fit together fully.As shown in Figure 1, the front end of divulsor is the folding shape, and this folding shape is corresponding with the folding shape on the corresponding urethral probe, as shown in Figure 2, is provided with an air bag 4 before the front end folding shape of this divulsor; As shown in Figure 3, this air bag 4 is to utilize the cavity in the divulsor front bulkhead to make, and this air bag 4 only is connected with inflation duct 3, like this when gases at high pressure or liquid pour in the air bag 4 from inflating duct 3, as shown in Figure 2, air bag 4 will expand because the pressure in the closed cavity increases.

The present invention uses in the following manner, at first, the urethral probe that is fit to this divulsor is inserted in mouthful 1 insertion gasbag-type urethral probe device from the urethral probe of rear end, and urethral probe is inserted fully, make the urethral probe front end withstand the front top inwall of gasbag-type urethral probe; Then with socket the urethral probe of divulsor insert in the urethra, in case feel the urethral stricture place, stop and vertically push forward, air inlet 2 is connected upward gases at high pressure or highly pressurised liquid, gases at high pressure or highly pressurised liquid enter in the air bag 4 by aerating pipe 3, air bag 4 is subjected to the internal high pressure effect and expands, because the horizontal force that produces that expands is pushed the urethral stricture place open, reaches the purpose of treatment.

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

Claims

1. the divulsor that uses of a together with urethral probe, it is characterized in that: body is the hollow pipe of end sealing, thereafter end face is provided with the inflation duct that urethral probe is inserted mouthful, its hollow tube is provided with air inlet and links to each other with air inlet, and the body front end is provided with and inflates the air bag that the duct links to each other.

2. the divulsor that a kind of together with urethral probe as claimed in claim 1 uses is characterized in that: described urethral probe is inserted mouth and is funnel-form.

3. the divulsor that a kind of together with urethral probe as claimed in claim 1 uses is characterized in that: described air inlet is provided with the sealing ring of the air inlet pipe that is used to be tightly connected.

4. the divulsor that a kind of together with urethral probe as claimed in claim 1 uses, it is characterized in that: the wall thickness of described divulsor is 0.2mm～0.3mm.

5. the divulsor that a kind of together with urethral probe as claimed in claim 1 uses is characterized in that: described inflation duct is arranged on an airtight hollow pipeline in the urethral dilatation wall.

6. the divulsor that a kind of together with urethral probe as claimed in claim 1 uses is characterized in that: described air bag is the cavity in the divulsor front bulkhead.

7. the divulsor that a kind of together with urethral probe as claimed in claim 1 uses is characterized in that: described divulsor adopts silica gel to make.