CN204601339U - A kind of disposable soft ureteral catheter - Google Patents

A kind of disposable soft ureteral catheter Download PDF

Info

Publication number
CN204601339U
CN204601339U CN201520253700.1U CN201520253700U CN204601339U CN 204601339 U CN204601339 U CN 204601339U CN 201520253700 U CN201520253700 U CN 201520253700U CN 204601339 U CN204601339 U CN 204601339U
Authority
CN
China
Prior art keywords
described
lumen tube
multi
steel wire
ureteral catheter
Prior art date
Application number
CN201520253700.1U
Other languages
Chinese (zh)
Inventor
姚鹏
Original Assignee
姚鹏
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 姚鹏 filed Critical 姚鹏
Priority to CN201520253700.1U priority Critical patent/CN204601339U/en
Application granted granted Critical
Publication of CN204601339U publication Critical patent/CN204601339U/en

Links

Abstract

A kind of disposable soft ureteral catheter, comprises operate portions and operating portion; Described operate portions comprises multi-lumen tube, and described multi-lumen tube one end is connected with described operating portion, and the other end is provided with head end cap; Described operating portion comprises handle, and be located at water inlet on described handle, instrument hole, illumination holes, image hole and push rod, also comprise the allotter be located in described handle, the entrance point of described allotter connects described water inlet, instrument hole, illumination holes and image hole respectively, and the port of export connects described multi-lumen tube; Also comprise the steel wire rope be located in described multi-lumen tube, one end of described steel wire rope is connected on described push rod, and the other end connects described head end cap; The outer wall of described multi-lumen tube is provided with hydrophilic coating, is provided with some service aisles in described multi-lumen tube, and the inwall of described service aisle is provided with polytetrafluorethylecoatings coatings.Disposable soft ureteral catheter of the present utility model, its operate portions is soft multi-lumen tube, easy to operate and patient experiences is better.

Description

A kind of disposable soft ureteral catheter

Technical field

This utility model relates to medical instruments field, especially relates to a kind of disposable soft ureteral catheter.

Background technology

Ureterorenoscope, when carrying out Diagnosis and Treat to the urinary tract of urinary system, can carry out macroscopic examination to the position that ureter, renal pelvis, renal calices etc. are difficult to check; To on urinary tract illness carry out operative treatment time need not make otch on human body, can obviously reduce to tissue damage, thus accelerate body recovery, Shorten the Treatment Process, improve curative effect, thus its uses increasingly extensive, popularize.

Chinese utility model patent CN 201782744U discloses a kind of soft or hard matter combination type bendable steering endoscope, its working portion comprises conduit and controls the steering tiller of guiding-tube bend, its conduit portion comprises hard tube and flexible pipe, and hard tube is enclosed within outside flexible pipe, and steering tiller controls hose bending.When Clinical practice, its conduit portion enters human body urinary tract, afterwards by lever operated hose bending, completes and checks or treatment.The soft or hard matter combination type bendable steering endoscope of this utility model, although simple to operate, easy to use, and can have a better effect, still there is following deficiency:

The hard tube of its conduit portion is made up of rustless steel usually, and when entering human body, the hard tube of metal material can increase the sense of discomfort of patient, even causes patient muscle's spasm, thus holds conduit tightly, makes it to enter urinary catheter smoothly.Meanwhile, employing hard tube is enclosed within the form outside flexible pipe, adds the diameter of catheter body, make conduit when inserting the patient of wean urethra or stricture of ureter, the resistance be subject to is large, more easily causes the spasm of patient muscle, or causes certain injury to the urethra of patient.

In use, the part of flexible pipe extending hard tube bends under the operation of handle, due to conduit, the operator when inserting urinary catheter can't see inner situation, when misoperation, if the length of flexible pipe extending hard tube is shorter and force bending under the control of handle time, be easy to the optical fiber fractureed in flexible pipe because bending radius is too little, cause endoscope to damage.

Meanwhile, the inner working channel of existing flexible pipe is generally three, is respectively instrument channel, steel wire passage and image channel, is also provided with lighting fiber inside image channel, is easy to damage optical image fibers, reduces the life-span of optical image fibers when long-time use.In addition, when hose bending, the plane at the axial line place of its steel wire passage and the plane at flexible pipe place have certain angle, thus make the bending operation of flexible pipe dumb, accurate.

Chinese utility model patent CN 203408026 U also discloses a kind of Ureter mirror with flexible end with telescopic epitheca, has carried out certain improvement to the scheme in aforementioned patent CN 201782744U.But, due to the mode that have employed the combination of soft or hard sheath that its conduit is same, therefore inevitably also there is above-mentioned deficiency.

Summary of the invention

This utility model, for above-mentioned deficiency of the prior art, provides a kind of disposable soft ureteral catheter.

In order to solve the problems of the technologies described above, this utility model is solved by following technical proposals:

A kind of disposable soft ureteral catheter, comprises operate portions and operating portion; Described operate portions comprises multi-lumen tube, and described multi-lumen tube one end is connected with described operating portion, and the other end is provided with head end cap; Described operating portion comprises handle, and be located at water inlet on described handle, instrument hole, illumination holes, image hole and push rod, also comprise the allotter be located in described handle, the entrance point of described allotter connects described water inlet, instrument hole, illumination holes and image hole respectively, and the port of export connects described multi-lumen tube; Also comprise the steel wire rope be located in described multi-lumen tube, one end of described steel wire rope is connected on described push rod, and the other end connects described head end cap; The outer wall of described multi-lumen tube is provided with hydrophilic coating, and described multi-lumen tube external diameter is F 7, inside is provided with four service aisles, and the inwall of described service aisle is provided with polytetrafluorethylecoatings coatings.

Preferably, described four service aisles are respectively instrument channel, illumination channel, steel wire passage and imaging band.

Further, described multi-lumen tube comprises inlet portion, turning part and work rear portion, and described inlet portion comprises the part near head end cap in described head end cap and described multi-lumen tube; After described inlet portion is located in described turning part, under the traction of described steel wire rope, carry out flexure operation; Described work rear portion connects described handle.

Preferably, when described turning part bends, the axial line of described steel wire passage and the axial line of described instrument channel in the same plane.

Preferably, the length of described turning part is 40-55mm.

Preferably, the external form of described head end cap is taper or cylindrical or cydariform.

Preferably, described push rod is provided with self-locking mechanism.

Disposable soft ureteral catheter of the present utility model, its operate portions is soft multi-lumen tube, four service aisles are provided with in this soft multi-lumen tube, be respectively instrument channel, illumination channel, steel wire passage and imaging band, and water inlet on described handle, instrument hole, illumination holes and image hole is connected to by described allotter.

In order to make described multi-lumen tube more easily enter human urethra, and make patient have better experience, the outer wall of multi-lumen tube is provided with hydrophilic coating; Meanwhile, in described multi-lumen tube service aisle inwall on, be also provided with polytetrafluorethylecoatings coatings; Described polytetrafluorethylecoatings coatings can antiacid alkali resistant and various organic solvent, smooth surface, coefficient of friction is extremely low, simultaneously not hydrophilic, more smooth when making the optical fiber in service aisle and apparatus pass through or stretch.As further improvement of the utility model, soft multi-lumen tube external diameter of the present utility model is designed to F 7, and there is not cover hard sheath outside, thus than usual similar soft hard conduit F 8-F 9caliber thinner, more easily enter the urethra of patient, be particularly useful for the patient of wean urethra or stricture of ureter.Further, the service aisle of its inside has also established an illumination channel than common similar conduit when reduced diameter more, and illumination channel is separated with image channel, thus more easily protects optical image fibers mirror, extends the life-span of optical image fibers; Meanwhile, also assures that instrument channel diameter is constant, the discharge of water inlet keeps 350ml/min.

Disposable soft ureteral catheter of the present utility model, is also provided with steel wire rope in the soft multi-lumen tube of operate portions, and described steel wire rope is located in described steel wire passage.One end of described steel wire rope is connected on the head end cap of multi-lumen tube end, the push rod on other end attended operation portion handle.Described multi-lumen tube comprises inlet portion, turning part and work rear portion, and user can operate push rod, drives turning part to carry out flexure operation by steel wire rope, thus enables inlet portion enter target area in patient body flexibly.Owing to there is not the hard sheath of outside, turning part is more flexible when carrying out flexure operation, and there is not the problem damaging multi-lumen tube because of the restriction of hard sheath.Further, when described turning part bends, the axial line of described steel wire passage and the axial line of described instrument channel in the same plane all the time, namely when described turning part bends, the plane at place is the plane at the axial line place of described steel wire passage and instrument channel, thus because of malfunction, accurately problem that the plane at the axial line place of steel wire passage and the plane at flexible pipe place have certain angle and cause when overcoming existing hose bending.Especially, the length of described turning part is set to 40-55mm, makes its radius of turn meet the size of human intracavity's body, flexible operation, convenience.At the head end cap of multi-lumen tube end, its external form comprises taper, cylindrical, cydariform, to adapt to different occasions and different patients, meanwhile, the head end cap of different external form also can as the diacritics of this utility model different model product.Further, in order to make user more convenient operation, described push rod is provided with self-locking mechanism; Operation push rod make bending section carry out bending after, the self-locking mechanism of push rod carries out self-locking, makes operator can carry out other operation and need not hold push rod always or carry out other lock operation, facilitates operator's operation.

Accompanying drawing explanation

Fig. 1 is the structural representation of an embodiment of a kind of disposable soft ureteral catheter of this utility model;

Fig. 2 is the schematic cross-section of existing multi lumen hose;

Fig. 3 is the schematic cross-section of multi-lumen tube in embodiment in Fig. 1;

Fig. 4 is the schematic diagram of three kinds of different external forms of the head end cap of embodiment in Fig. 1;

Description of reference numerals: 1-multi-lumen tube, 2-handle, 3-steel wire rope, 4-head end cap, 11-inlet portion, 12-turning part, 13-works rear portion, 14-instrument channel, 15-illumination channel, 16-steel wire passage, 17-imaging band, 21-water inlet, 22-instrument hole, 23-illumination holes, 24-image hole, 25-push rod, 41-conical head end cap, 42-cydariform head end cap, 43-cheese head end cap.

Detailed description of the invention

Below in conjunction with accompanying drawing and embodiment, this utility model is described in further detail.

See accompanying drawing 1-4, a kind of disposable soft ureteral catheter, comprises operate portions and operating portion.Its operate portions comprises soft multi-lumen tube 1, and this multi-lumen tube 1 one end is connected with operating portion, and the other end is provided with head end cap 4.In order to make multi-lumen tube 1 more easily enter human urethra, and make patient have better experience, the outer wall of multi-lumen tube is provided with hydrophilic coating; In multi-lumen tube, be provided with some service aisles, be respectively instrument channel 14, illumination channel 15, steel wire passage 16 and imaging band 17.Especially, in embodiment of the present utility model, the inwall of service aisle is also provided with polytetrafluorethylecoatings coatings.Because polytetrafluorethylecoatings coatings can antiacid alkali resistant and various organic solvent, smooth surface, coefficient of friction is extremely low, simultaneously not hydrophilic, so more smooth when this coating can make the optical fiber in service aisle and apparatus pass through or stretch.

Multi-lumen tube of the present utility model, because there is not cover hard sheath outside, and have passed through particular design, its external diameter can reach F 7, than usual similar soft hard conduit F 8-F 9caliber thinner, thus more easily enter the urethra of patient, be particularly useful for the patient of wean urethra or stricture of ureter.As shown in Figure 3, the service aisle of its inside has established an illumination channel 15 when reduced diameter more than existing similar conduit, and illumination channel is separated with imaging band, thus more easily protects optical image fibers mirror, extends the life-span of optical image fibers mirror; Meanwhile, also assures that instrument channel diameter is constant, the discharge of water inlet keeps 350ml/min.

Operating portion comprises handle 2, and handle is provided with water inlet 21, instrument hole 22, illumination holes 23, image hole 24 and push rod 25, is provided with allotter in handle.The entrance point of allotter connects above-mentioned water inlet 21, instrument hole 22, illumination holes 23 and image hole 24 respectively, and the port of export connects multi-lumen tube 1, is coupled together by service aisle corresponding with in multi-lumen tube for the above-mentioned through hole on handle.Especially, in order to user is easy to operate, push rod 25 is provided with self-locking mechanism.Operator operation push rod 25 make the front end of multi-lumen tube carry out bending after, the self-locking mechanism of push rod 25 carries out self-locking, makes operator can carry out other operation and need not hold push rod always or carry out other lock operation, facilitates operator's operation.

In multi-lumen tube, be also provided with steel wire rope 3.This steel wire rope 3 is located in steel wire passage 16, and one end is connected on push rod 25, and the other end connects the head end cap 4 of multi-lumen tube one end.Multi-lumen tube can be divided into inlet portion 11, turning part 12 and work rear portion 13.Wherein, inlet portion 11 comprises the part near head end cap in head end cap 4 and multi-lumen tube; After inlet portion is located in turning part 12, flexure operation can be carried out under the traction of steel wire rope; Work rear portion 13 is connected to handle 2.In use, user can operate push rod 25, drives the turning part 12 of multi-lumen tube to carry out flexure operation by steel wire rope 3, thus makes inlet portion 11 can enter target area in patient body flexibly.Owing to there is not the hard sheath of outside, turning part is more flexible when carrying out flexure operation, and there is not the problem damaging multi-lumen tube because of the restriction of hard sheath.Further, as shown in Figure 2, the line at the center of its steel wire passage 16 of existing flexible pipe and the center of instrument channel 14 and the bending direction of flexible pipe itself have certain angle a, when hose bending, the plane at the axial line place of steel wire rope and the plane at flexible pipe place have certain angle, consequently leads to the operation underaction of hose bending, precisely.For this problem, as shown in Figure 3, when the turning part of soft multi-lumen tube of the present utility model bends, the axial line of steel wire passage 16 and the axial line of instrument channel 14 in the same plane all the time, namely when turning part bends, the plane at place is the plane at the axial line place of steel wire rope 3 and instrument channel 14, thus operates underaction, accurately problem when overcoming existing hose bending.Especially, the length of turning part 12 is set to 40-55mm, makes its radius of turn meet the size of human intracavity's body, flexible operation, convenience.

As shown in Figure 4, in order to use in different occasions and adapt to different patients, at the head end cap 4 of multi-lumen tube end, its external form is conical head end cap 41 or cheese head end cap 43 or cydariform head end cap 42.Meanwhile, the head end cap of different external form also can as the diacritics of this utility model different model product.

In a word; the foregoing is only the preferred embodiment of utility model; not in order to limit this utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (7)

1. a disposable soft ureteral catheter, is characterized in that comprising:
Operate portions and operating portion;
Described operate portions comprises multi-lumen tube (1), and described multi-lumen tube one end is connected with described operating portion, and the other end is provided with head end cap (4);
Described operating portion comprises handle (2), and be located at water inlet (21) on described handle, instrument hole (22), illumination holes (23), image hole (24) and push rod (25), also comprise the allotter be located in described handle, the entrance point of described allotter connects described water inlet, instrument hole, illumination holes and image hole respectively, and the port of export connects described multi-lumen tube;
Also comprise the steel wire rope (3) be located in described multi-lumen tube, one end of described steel wire rope is connected on described push rod (25), and the other end connects described head end cap (4); The outer wall of described multi-lumen tube is provided with hydrophilic coating, and described multi-lumen tube external diameter is F 7, inside is provided with four service aisles, and the inwall of described service aisle is provided with polytetrafluorethylecoatings coatings.
2. disposable soft ureteral catheter as claimed in claim 1, is characterized in that: described four service aisles are respectively instrument channel (14), illumination channel (15), steel wire passage (16) and imaging band (17).
3. disposable soft ureteral catheter as claimed in claim 2, it is characterized in that: described multi-lumen tube comprises inlet portion (11), turning part (12) and work rear portion (13), and described inlet portion comprises the part near head end cap in described head end cap and described multi-lumen tube; After described inlet portion is located in described turning part, under the traction of described steel wire rope, carry out flexure operation; Described work rear portion connects described handle.
4. disposable soft ureteral catheter as claimed in claim 3, is characterized in that: when described turning part bends, the axial line of described steel wire passage and the axial line of described instrument channel in the same plane.
5. disposable soft ureteral catheter as claimed in claim 4, is characterized in that: the length of described turning part (12) is 40-55mm.
6. the disposable soft ureteral catheter as described in claim 1-5, is characterized in that: the external form of described head end cap is taper or cylindrical or cydariform.
7. disposable soft ureteral catheter as claimed in claim 6, is characterized in that: described push rod is provided with self-locking mechanism.
CN201520253700.1U 2015-04-24 2015-04-24 A kind of disposable soft ureteral catheter CN204601339U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520253700.1U CN204601339U (en) 2015-04-24 2015-04-24 A kind of disposable soft ureteral catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520253700.1U CN204601339U (en) 2015-04-24 2015-04-24 A kind of disposable soft ureteral catheter

Publications (1)

Publication Number Publication Date
CN204601339U true CN204601339U (en) 2015-09-02

Family

ID=53953936

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520253700.1U CN204601339U (en) 2015-04-24 2015-04-24 A kind of disposable soft ureteral catheter

Country Status (1)

Country Link
CN (1) CN204601339U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104799807A (en) * 2015-04-24 2015-07-29 姚鹏 Disposable soft ureter catheter
EP3485931A1 (en) 2017-11-21 2019-05-22 Sana-one GmbH Ureteral catheter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104799807A (en) * 2015-04-24 2015-07-29 姚鹏 Disposable soft ureter catheter
EP3485931A1 (en) 2017-11-21 2019-05-22 Sana-one GmbH Ureteral catheter

Similar Documents

Publication Publication Date Title
US8608649B2 (en) In-vivo visualization system
US8597261B2 (en) Ureteral access sheath
US4571239A (en) Catheter-stylet assembly for slipover urethral instruments
US8366674B2 (en) Rotate-to-advance catheterization system
US9265407B2 (en) Endoscopic methods and devices for transnasal procedures
ES2621212T3 (en) Systems and methods for intranasal dilation of ducts in the ear, nose and throat
US7255687B2 (en) Systems and methods for luminal access
US9089258B2 (en) Endoscopic methods and devices for transnasal procedures
US9107574B2 (en) Endoscopic methods and devices for transnasal procedures
US9101735B2 (en) Catheter control systems
AU2003287083B2 (en) Medical device sheath apparatus and method
US9468362B2 (en) Endoscopic methods and devices for transnasal procedures
US8641604B2 (en) Steering system with locking mechanism
JP6214695B2 (en) Device, medical device, drive device, and device for transmitting rotational motion to a rotor, which are attached to an apparatus having a stator, a rotating member, and a cover
JP4009519B2 (en) Endoscope
ES2252793T3 (en) Biliar exchange catheter by a single operator.
AU667783B2 (en) Variable stiffness balloon catheter
US20080058595A1 (en) Medical device introduction systems and methods
US5718680A (en) Catheter system with push rod for advancement of balloon along guidewire
US20040152949A1 (en) Systems and methods for providing gastrointestinal pain management
US10251534B2 (en) Steerable medical device having an imaging system
US20110144576A1 (en) Catheter orientation control system mechanisms
US5308342A (en) Variable stiffness catheter
CN101415362B (en) Medical devices and systems
JP2009528893A (en) Endoscopic device with improved catheter

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180509

Address after: 311199 401B, No. 22, Xin Yan Road, Yuhang economic and Technological Development Zone, Yuhang District, Hangzhou, Zhejiang.

Patentee after: Hangzhou is without wound Photoelectric Co., Ltd.

Address before: 311100 room 702, Yongan building, 355 Yingbin Road, Nanyuan street, Yuhang District, Hangzhou, Zhejiang.

Patentee before: Yao Peng