CN209153581U - A kind of bladder soft lens sheath - Google Patents

Abstract

The utility model relates to a kind of bladder soft lens sheaths comprising outer catheter, inner core and side conduit, the inner core are arranged in the outer catheter；Outer catheter distal end side wall is equipped with several leakage fluid drams, and the outer catheter proximal end is socketed on the threeway distal end；It is included outside the proximal inner diameter of the threeway, inside forms step surface, and the step surface is equipped with gasket, and the gasket is compressed by snap ring, and flexible cap is equipped on the outside of the snap ring；The inner core distal end is connected with the seeker of sharp cone distal, and the seeker is pierced by the outer catheter distal end, and the inner core proximal end sequentially passes through the gasket and the flexible cap, and is connected with a handle；The side conduit is connected to the side of the threeway, is provided with liquid stopping clamp or flow regulator on the side conduit.The device can realize that bladder depressurizes, simple for structure durable, more convenient using cleaning.By improving three-port structure, gasket and snap ring are set in the threeway, effectively improve stability of strutting system and leakproofness.

Description

A kind of bladder soft lens sheath

Technical field

The utility model relates to the field of medical instrument technology, specifically, being a kind of bladder soft lens sheath.

Background technique

Ureteroscopy is extension of the urethroscope cystoscope technology in upper urinary tract, and Ureteroscopy refers to that per urethra is logical It crosses the native humans such as bladder channel and is put into endoscope and carries out ureter and the biopsy of kidney inner tissue, rubble and take stone, fulguration and ureter The operations such as narrow interior incision, the cavity for taking full advantage of human body natural carry out some surgical procedures, avoid traditional operation It must make a very big notch in abdomen.It is mainly used for treating lower ureteral calculi, polyp or narrow, can be used for Diagnose the diseases such as renal plevis, tumor of ureter.

Ureteroscopy comes out existing over half a century, its advantage is that checking and treating by human body natural channel Disease has many advantages, such as that minimally invasive damage is small, few intercurrent disease, curative for effect, post-operative recovery is fast, extensive in clinical application, is intracavitary One of the important technology of Urological Field development.During Ureteroscopy, in order to guarantee to get a clear view in art, need to fill It infuses physiological saline and maintains surgical field of view.However, urine and perfusion liquid are constantly accumulated in bladder with lasting perfusion.Wing The excessive bulge of Guang will lead to mirror difficulty on ureteroscope, influence surgical procedure.Meanwhile liquid is continuously increased and leads to wing in bladder Hypertonia will also result in the damage of bladder in Guang, under serious situation, result even in cystorrhexis.Therefore, surgical doctor Interrupt operation is generally required, exits ureteroscope and catheter drainage urine to alleviate bladder pressure.However mirror not only shadow is moved back repeatedly Procedure efficiency is rung, the risk of urethra, ureter equivalent damage is further increased.

The Chinese patent of Publication No. CN204683552U discloses a kind of ureteroscope bladder depressurized system comprising outer Sheath and inner core；The inner core is placed in epitheca；Epitheca is stretched out in the inner core distal end；The inner core proximal end is connected to epitheca end； The outer sheath distal is equipped with telescopic device；The epitheca proximal end is equipped with pedestal；The pedestal is equipped with side pipe；It is connected on the side pipe There is adjuster；The adjuster is equipped with card slot；Under the telescopic device contraction state, both ends collapse to centre and form protrusion； The raised profile face is arcwall face.Its advantage is shown: being discharged liquid in bladder by epitheca, while being controlled by adjuster Bladder decompression is realized in the folding of leakage fluid dram, and without moving back mirror repeatedly, avoiding in bladder liquid from being continuously increased leads to intravesical pressure mistake Height causes trauma of bladder；Inner core controls the contraction and recovery of telescopic device, easy to operate, and minimally invasive damage is small；Epitheca is in the preoperative Inner core is all worn with postoperative, has the function of dredging guidance, can prevent epitheca from blocking.But the depressurized system proximal end is close Envelope property is not good enough, and leakage is easy when inner core is moved forward and backward；In addition, the telescopic device of distal end is also easily deformed blocking due to flexible.Cause This, solves the above problems, and needs to propose that new scheme improves the depressurized system and keeps it more practical.

Utility model content

The purpose of this utility model is that aiming at the shortcomings in the prior art, providing a kind of more practical bladder soft lens Sheath.

For ease of description, it is described below using term " distal end " and " proximal end "；The distal end is to operate apart from doctor Farther away one end；The proximal end is to operate closer one end apart from doctor.

To achieve the above object, the technical scheme adopted by the utility model is that:

A kind of bladder soft lens sheath comprising outer catheter, inner core and side conduit, the inner core are arranged in the outer catheter；

Outer catheter distal end side wall is equipped with several leakage fluid drams, and the outer catheter proximal end is socketed on the threeway distal end；

Include outside the proximal inner diameter of the threeway, inside forms step surface, and the step surface is equipped with gasket, the gasket by Snap ring compresses, and flexible cap is equipped on the outside of the snap ring；

The inner core distal end is connected with the seeker of sharp cone distal, and the seeker is pierced by the outer catheter distal end, the inner core Proximal end sequentially passes through the gasket and the flexible cap, and is connected with a handle；

The side conduit is connected to the side of the threeway, is provided with liquid stopping clamp or flow regulator on the side conduit.

Preferably, the flexible cap is the good flexible material cap of sealing effect, preferred rubber cap.

Preferably, the threeway distal exterior is equipped with the retainer ring for blocking the outer catheter.

Preferably, the gasket periphery is equipped with the protrusion of limit, the step surface and the snap ring are set in corresponding position It is fluted.

Preferably, the handle is in I-shaped, including two trailing arms and a casing, described sleeve pipe are set in the inner core Proximal end, two trailing arms are connected in described sleeve pipe by cross bar, and it is described that the trailing arm distal medial is equipped with hooking for protrusion The barb of threeway protrusion outer wall.The barb can prevent inner core when operation from deviating from the outer catheter.And it is needed when No operation When by inner core extraction, trailing arm proximal end described in pressable makes trailing arm distal end tilting no longer hook the threeway protrusion outer wall Afterwards, it can extract out.

Preferably, the inner core middle section is hollow tube.Convenient for connecting with the seeker of distal end, and quality can be reduced.

Preferably, outer catheter distal end end face is smooth cambered surface.It can avoid sharp end face with this and damage Urinary Road.

Preferably, the end of the side conduit is connected with funnel.The funnel can be convenient for the collection of extraction liquid.

Preferably, the leakage fluid dram is round hole or slotted eye.

Preferably, the threeway is equipped with flank.

The utility model advantage is:

1, in the bladder soft lens sheath of the utility model, the leakage fluid dram is set to outer catheter distal end side wall, by described Leakage fluid dram can draw liquid in bladder, while the folding of leakage fluid dram is controlled by adjuster, bladder decompression be realized, without repeatedly Mirror is moved back, avoiding in bladder liquid from being continuously increased causes intravesical pressure excessively high or cause trauma of bladder.The apparatus structure is succinctly resistance to With being not only easier to penetrate patient's urethra, but also easily facilitate installing and dismounting by the way of threeway connection, convenient for cleaning.

2, by improving three-port structure, supporting element, gasket and snap ring, the inner core proximal end is set in the threeway and worn In the threeway, the supporting element mainly plays that support is fixed, and the gasket can play support and sealing simultaneously Effect, the two swing in conjunction with when can effectively avoid inner core back-and-forth motion, improve stability and leakproofness.

3, inner core is all worn with postoperative in the preoperative, has the function of dredging guidance, can prevents outer catheter from blocking.

4, the inner core and outer catheter distal end end face are smooth cambered surface, with bladder inner wall there is buffering transition to make With avoiding doctor when operating because of undue force, hurt bladder inner wall.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of the bladder soft lens sheath of the utility model；

Fig. 2 is the main view of the bladder soft lens sheath of the utility model；

Fig. 3 is the cross-sectional view of the bladder soft lens sheath of the utility model；

Fig. 4 is enlarged diagram at A in Fig. 2.

Appended drawing reference

Outer catheter 1, threeway 2, inner catheter 3 (i.e. inner core), side conduit 4, seeker 5, handle 6, liquid stopping clamp 7, funnel 8, row Liquid mouth 9, retainer ring 10, supporting element 11, gasket 12, snap ring 13, rubber cap 14, raised 15, trailing arm 16, casing 17, barb 18.

Specific embodiment

Below in conjunction with specific embodiment, the utility model is described in further detail.It should be understood that following embodiment is only used for Bright the utility model is not for restriction the scope of the utility model.

Embodiment 1

Fig. 1 and 2 show the bladder soft lens sheath of one preferred embodiment of the utility model comprising outer catheter 1, threeway 2, interior Conduit 3 (i.e. inner core), side conduit 4, seeker 5, handle 6, liquid stopping clamp 7 and funnel 8.

1 distal end side wall of outer catheter is equipped with several leakage fluid drams 9, and distal end end face is smooth cambered surface.1 proximal end of outer catheter is socketed on 2 distal end of threeway, 2 distal exterior of threeway are equipped with the retainer ring 10 for blocking outer catheter 1.

As shown in figure 3,2 distal internal of threeway is equipped with the supporting element 11 for being used to support inner catheter 3, the side and side of threeway 2 Conduit 4 is connected to, and liquid stopping clamp 7 is set on side conduit 4, and funnel 8 is set to 4 end of side conduit；It is included outside the proximal inner diameter of threeway 2, it is internal Step surface is formed, step surface is equipped with gasket 12, and gasket 12 is compressed by snap ring 13, and rubber cap 14 is equipped on the outside of snap ring 13.Such as Fig. 4 Shown, 12 periphery of gasket is equipped with the protrusion 15 of limit, step surface and snap ring 13 and is equipped with groove in corresponding position.

Inner catheter 3 is arranged in outer catheter 1, and seeker 5 is connected to the distal end of inner catheter 3, and 5 tail diameter of seeker is greater than The internal diameter of 1 distal end of outer catheter；3 proximal end of inner catheter sequentially passes through supporting element 11, gasket 12 and rubber cap 14.

Handle 6 is in I-shaped, including two trailing arms 16 and a casing 17, and casing 17 is set in 3 proximal end of inner catheter, and two Trailing arm 16 is connected on casing 17 by cross bar, and falling for outer wall is protruded in the threeway 2 of hooking that 16 distal medial of trailing arm is equipped with protrusion Hook 18.

In use, the bladder soft lens sheath of the utility model passes through patient's urethra, in bladder liquid can successively through leakage fluid dram 9, Outer catheter 1, threeway 2 and side conduit 4 are discharged, and realize bladder decompression.Opening for leakage fluid dram is controlled by liquid stopping clamp 7 or adjuster simultaneously It closes, realizes bladder decompression, without moving back mirror repeatedly, avoiding in bladder liquid from being continuously increased causes intravesical pressure excessively high or cause wing Guang damage.

The apparatus structure is succinctly durable, is not only easier to penetrate patient's urethra, but also by the way of threeway connection more just In installing and dismounting, convenient for cleaning.By improving 2 structure of threeway, supporting element 11, gasket 12 and snap ring 13 are set in threeway 2, it is interior 3 proximal end of conduit is threaded through in threeway 2, and supporting element 11 can play the fixed effect of support, and gasket 12 can play simultaneously support and The effect of sealing, the two are combined to can effectively avoid when inner catheter 3 is moved forward and backward and be swung, and improve stability and leakproofness.

The preferred embodiment created to the utility model above is illustrated, but the utility model is created not It is limited to embodiment, those skilled in the art are various etc. without prejudice to can also make under the utility model precondition for innovation Same variation or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.

Claims (9)

1. a kind of bladder soft lens sheath comprising outer catheter, inner core and side conduit, the inner core are arranged in the outer catheter；Its It is characterized in that,

Outer catheter distal end side wall is equipped with several leakage fluid drams, and the outer catheter proximal end is socketed on the threeway distal end；

It is included outside the proximal inner diameter of the threeway, inside forms step surface, and the step surface is equipped with gasket, and the gasket is by snap ring It compresses, flexible cap is equipped on the outside of the snap ring；

The inner core distal end is connected with the seeker of sharp cone distal, and the seeker is pierced by the outer catheter distal end, the inner core proximal end The gasket and the flexible cap are sequentially passed through, and is connected with a handle；

The side conduit is connected to the side of the threeway, is provided with liquid stopping clamp or flow regulator on the side conduit.

2. bladder soft lens sheath according to claim 1, which is characterized in that the threeway distal exterior is equipped with for blocking State the retainer ring of outer catheter.

3. bladder soft lens sheath according to claim 1, which is characterized in that the gasket periphery is equipped with the protrusion of limit, The step surface and the snap ring are equipped with groove in corresponding position.

4. bladder soft lens sheath according to claim 1, which is characterized in that the handle is in I-shaped, including two trailing arms With a casing, described sleeve pipe is set in the inner core proximal end, and two trailing arms are connected in described sleeve pipe by cross bar, described Trailing arm distal medial is equipped with the barb for hooking the threeway protrusion outer wall of protrusion.

5. bladder soft lens sheath according to claim 1, which is characterized in that the inner core middle section is hollow tube.

6. bladder soft lens sheath according to claim 1, which is characterized in that outer catheter distal end end face is smooth arc Face.

7. bladder soft lens sheath according to claim 1, which is characterized in that the end of the side conduit is connected with funnel.

8. bladder soft lens sheath according to claim 1, which is characterized in that the leakage fluid dram is round hole or slotted eye.

9. bladder soft lens sheath according to claim 1, which is characterized in that the threeway is equipped with flank.