CN102580224B - Urethral catheter and ureteral stent device comprising same - Google Patents
Urethral catheter and ureteral stent device comprising same Download PDFInfo
- Publication number
- CN102580224B CN102580224B CN201210055503.XA CN201210055503A CN102580224B CN 102580224 B CN102580224 B CN 102580224B CN 201210055503 A CN201210055503 A CN 201210055503A CN 102580224 B CN102580224 B CN 102580224B
- Authority
- CN
- China
- Prior art keywords
- inner core
- epitheca
- catheter
- draught line
- head
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a urethral catheter and a ureteral stent device comprising the same, which are used for leading out a pull wire of a ureteral stent tube in the body of a patient. The urethral catheter comprises an outer sheath and an inner core slidably sleeved in the outer sheath, the inner surface of the head of the outer sheath and the outer surface of the head of the inner core enclose a pull wire fixing cavity, and a magnetic portion is arranged at a position close to the head of the inner core. When the urethral catheter is used for leading out the pull wire, the urethral catheter is fed into an anterior urethra by means of conventionally indwelling the urethral catheter, the pull wire is embedded into the pull wire fixing cavity by pulling the inner core backwards after the magnetic portion sucks the pull wire, the urethral catheter is integrally pulled outwards, and then the pull wire can be smoothly led out of a urethral orifice. The position of the pull wire is determined by the aid of the magnetic portion, the pull wire is clamped and led out by means of coordination of the inner core and the outer sheath, and the pull wire can be led out of the body of the patient by means of simple operation.
Description
Technical field
The present invention relates to medical instruments field, more particularly, relate to a kind of catheter, also relate to a kind of Ureteral stent device of applying this catheter.
Background technology
A kind of medical apparatus and instruments of ureter rack tube, profile is an elongated flexible pipe.In the time that ureter blocks because calculus, cicatricial stricture, tumor etc. cause, can, by by ureter rack tube implant patient body, in order to support ureter, thereby make urine drain into bladder from kidney.Meanwhile, operation on ureter (comprising ureter microscopy, rubble and ureter open surgery) and renal pelvis operation (for example: pyelolithotomy, renal pelvis shaping, percutaneous nephroscope lithotripsy etc.) routine also need to place ureter rack tube.At present also without any a kind of ureter rack tube can permanent indwelling in vivo, in use for some time, need to operate to pull out ureter rack tube by invasive, be generally cystoscope operation.Although cystoscope operation is not really major operation, can bring larger misery to patient, especially obvious for male patient, in operation process, need patient to carry out local anesthesia or general anesthesia to palliate the agonizing sufferings.And, when tube drawing, can cause to urinary tract tissue the damage of degree varies, make it occur to infect and edema, some cases usually need emergency treatment.
In order to solve the above problems, those skilled in the art have worked out a kind of ureter rack tube with draught line.As shown in Figure 1, this ureter rack tube comprises support tube body 11 and draught line 12, and wherein, cradling piece body 11 is similar with existing ureteric branches hack lever; Draught line 12 is fixedly connected on the afterbody of support tube body 11, draught line 11 comprises stretch section 121 and magnetic absorption section 122, one end of stretch section 121 is connected with support tube body 11, and the other end is connected with magnetic absorption section 122, and magnetic absorption section 122 is with the silk thread that is interrupted iron core.At above-mentioned stretch section, during in free deployed condition, when the length of draught line is less than in ureter rack tube implant patient body, its afterbody is to the distance of patient's urethral orifice; Meanwhile, in the time that stretch section is stretched to greatest length, when the length of draught line is greater than in ureter rack tube implant patient body, its afterbody is to the distance of patient's urethral orifice.
After in the implanted patient body of this ureter rack tube, draught line can launch in patient body gradually under the mobile power of urine, because the length of draught line in the time that stretch section freely launches is less than the distance of support tube body afterbody to patient's urethral orifice, therefore draught line can not expose patient's urethral orifice, has effectively avoided exposing because of draught line the problem that causes patient infection after contaminated.In the time that needs take out ureter rack tube, utilize magnet direction attracting magnetic adsorption section outside patient body, under the effect of magnetic force, stretch section extends, and draught line exposes patient's urethral orifice, now can take out ureter rack tube by pulling draught line.
The above-mentioned ureter rack tube with draught line, in realizing existing ureter rack tube function, comprises the draught line of stretch section and magnetic absorption section by setting, solved draught line and exposed the problems that cause.But owing to just launching after draught line is in ureter rack tube implant patient body, like this, operator are in the time that needs take out ureter rack tube by draught line, owing to not knowing the particular location of draught line, operation has inconvenience more.
According to the above, how a kind of catheter is provided and comprises the Ureteral stent device of this catheter, to realize by shirtsleeve operation from deriving the object of draught line in patient body, become those skilled in the art the technical problem of needing solution badly.
Summary of the invention
In view of this, the invention provides a kind of catheter and comprise the Ureteral stent device of this catheter, to realize by shirtsleeve operation from deriving the object of draught line in patient body.
For achieving the above object, the invention provides following technical scheme:
A kind of catheter, comprises epitheca and inner core, and inner core is set in epitheca slidably, and the head inner surface of epitheca and the outer surface of inner core surround draught line lock chamber;
Inner core is provided with magnetic portion near self head place.
Preferably, in above-mentioned catheter, magnetic portion is magnetic rubber piece.
Preferably, in above-mentioned catheter, the head inner surface of epitheca is coniform inclined-plane, and coniform inclined-plane and interior core outer surface surround draught line lock chamber.
Preferably, in above-mentioned catheter, the head end of epitheca is provided with hard ring.
Preferably, in above-mentioned catheter, interior core head is provided with groove, and groove and epitheca inner surface surround draught line lock chamber.
Preferably, in above-mentioned catheter, epitheca and inner core are respectively soft silica gel epitheca and silica gel inner core.
Preferably, in above-mentioned catheter, the head of inner core is provided with target seeker, and target seeker is soft oval ball, and the cross section maximum radius of oval ball is greater than the maximum radius of other position cross section of catheter.
Preferably, in above-mentioned catheter, on epitheca and inner core, be respectively arranged with scale portion and the tag line of reference mutually.
Preferably, in above-mentioned catheter, on the afterbody of epitheca, be provided with tag line, on the afterbody of inner core, be provided with scale portion.
The invention provides a kind of catheter, for deriving the draught line of ureter rack tube in patient body.This catheter comprises epitheca and inner core, and inner core is set in described epitheca slidably, and the head inner surface of epitheca and the head outer surface of inner core surround draught line lock chamber, and wherein, described inner core is provided with magnetic portion near self head place.In the time using catheter provided by the present invention to derive draught line, adopt conventional indwelling catheter operation that catheter is sent into anterior urethra, after magnetic portion adsorption column draught line, by pulling back inner core, make draught line be embedded into draught line lock chamber, then entirety pulls out catheter, can make draught line draw smoothly urethral orifice.
Catheter provided by the invention is by using magnetic portion to determine the position of draught line, by inner core and coordinating of epitheca blocking draught line and are drawn, realized by shirtsleeve operation from deriving the object of draught line in patient body.
The invention also discloses a kind of Ureteral stent device, this Ureteral stent device comprises and is provided with the ureter rack tube of magnetic absorption portion and above-mentioned catheter.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of ureter rack tube in prior art;
The structural representation of the catheter that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the catheter head that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the catheter that is provided with hard ring that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the catheter that Fig. 5 provides for another embodiment of the present invention;
The schematic diagram when catheter that Fig. 6 provides for the embodiment of the present invention does not embed draught line;
Fig. 6-1 is the local enlarged diagram of the embodiment of the present invention;
Fig. 6-2 are the local enlarged diagram of the embodiment of the present invention;
The schematic diagram when catheter that Fig. 7 provides for the embodiment of the present invention embeds draught line;
Fig. 7-1 is the local enlarged diagram of the embodiment of the present invention;
Fig. 7-2 are the local enlarged diagram of the embodiment of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of catheter and comprise the Ureteral stent device of this catheter, to realize by shirtsleeve operation from deriving the object of draught line in patient body.
Please refer to Fig. 2, Fig. 3, a kind of catheter, comprises epitheca 21 and inner core 22, and inner core 22 is set in epitheca 21 slidably, and the head inner surface of epitheca 21 and the head outer surface of inner core surround draught line lock chamber 3.
Preferably, the head inner surface of epitheca 21 is coniform inclined-plane 211, and coniform inclined-plane 211 has surrounded draught line lock chamber 3 with the outer surface of inner core 22.
Preferably, the magnetic portion 222 arranging on inner core 22 is the magnetic rubber piece identical with inner core profile.
Epitheca 21 is made up of soft silica gel equally.
The inner surface of epitheca 21 and inner core 22 heads surround draught line lock chamber 3 by the outer surface of rear position.
Application the embodiment of the present invention provide catheter time, first adopt conventional indwelling catheter operation catheter to be sent into patient's anterior urethra, utilize magnetic portion on inner core to approach the magnetic attraction portion of draught line, after in estimation, the two comes in contact, pull back inner core, make draught line embed the draught line lock chamber between catheter epitheca and inner core, last entirety pulls out catheter, thereby derives the draught line in patient body.Now can take out the ureter rack tube in patient body by pulling draught line.
Catheter provided by the invention is by using magnetic portion to determine the position of draught line, by inner core and coordinating of epitheca blocking draught line and are drawn, realized by shirtsleeve operation from deriving the object of draught line in patient body.
In the above-described embodiments, because epitheca is silica gel material, more soft, therefore embed draught line lock chamber at draught line, pull out in the process of catheter, may there is deformation in epitheca, and cause draught line to deviate from draught line lock chamber, causes operation failure.
Please refer to Fig. 4, in order to address this problem, another embodiment of the present invention has been set up hard ring 212 at epitheca head, to prevent that epitheca from deformation occurring in the time being subject to external force.
On the basis of above-described embodiment, the draught line lock chamber in the embodiment of the present invention can also be surrounded by the groove of interior core head and epitheca inner surface.
Please refer to Fig. 5, interior core head is provided with groove 223 by rear position, and the diameter of groove 223 place's inner core cross sections is less than the diameter of other cross section of inner core.
In the above-described embodiments, operator cannot observe directly the concrete condition of catheter in patient body, need to by virtue of experience judge whether the magnetic portion of catheter contacts with the magnetic absorption portion of draught line.This has increased the use difficulty of catheter.Therefore, another embodiment of the present invention is by arranging mark to address this problem.
Please refer to Fig. 6, Fig. 6-1, Fig. 6-2, Fig. 7, Fig. 7-1 and Fig. 7-2, the afterbody of inner core 22 is provided with tag line 224, and in the time that epitheca 21 heads can contact with the target seeker 221 on inner core 22, tag line 224 flushes with epitheca end.
When draught line embeds after draught line holddown groove 3, in the process that inner core 22 is pulled back, draught line 4 is stuck between inner core 22 and epitheca 21, makes epitheca 21 heads cannot touch the target seeker 221 on inner core 21.Now, tag line 224 is blocked by epitheca 21.Contrary, if draught line 4 fails to embed draught line holddown groove 3, when epitheca 21 can contact with target seeker 221, tag line 224 can not blocked by epitheca 21.
By tag line is set, operator can successfully embed draught line in draught line holddown groove judging whether by observing tag line, have reduced the operation easier of catheter.
On the basis of above-described embodiment, the scale portion that tag line can also be separately positioned on epitheca afterbody and inner core afterbody substitutes, and its mode of operation is same as the previously described embodiments.
The invention also discloses a kind of Ureteral stent device, this Ureteral stent device comprises and is provided with the ureter rack tube of magnetic absorption portion and above-mentioned catheter.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a catheter, is characterized in that, comprises epitheca and inner core, and described inner core is set in described epitheca slidably;
The head inner surface of described epitheca is coniform inclined-plane, and described coniform inclined-plane and described interior core outer surface surround draught line lock chamber, or
Described interior core head is provided with groove, and described groove and described epitheca inner surface surround draught line lock chamber;
Described epitheca and described inner core are respectively soft silica gel epitheca and silica gel inner core, the head of described inner core is provided with target seeker, described target seeker is soft oval ball, the cross section maximum radius of described oval ball is greater than the maximum radius of other position cross section of described catheter, and described inner core is provided with magnetic portion near self head place.
2. catheter according to claim 1, is characterized in that, described magnetic portion is magnetic rubber piece.
3. catheter according to claim 1, is characterized in that, the head end of described epitheca is provided with hard ring.
4. catheter according to claim 1, is characterized in that, is respectively arranged with scale portion and the tag line of reference mutually on described epitheca and described inner core.
5. catheter according to claim 4, is characterized in that, on the afterbody of described epitheca, is provided with tag line, is provided with scale portion on the afterbody of described inner core.
6. a Ureteral stent device, is characterized in that, described Ureteral stent device comprises the catheter described in ureter rack tube and the claim 1-5 any one that is provided with magnetic absorption portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210055503.XA CN102580224B (en) | 2012-03-05 | 2012-03-05 | Urethral catheter and ureteral stent device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210055503.XA CN102580224B (en) | 2012-03-05 | 2012-03-05 | Urethral catheter and ureteral stent device comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102580224A CN102580224A (en) | 2012-07-18 |
| CN102580224B true CN102580224B (en) | 2014-07-02 |
Family
ID=46469802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210055503.XA Expired - Fee Related CN102580224B (en) | 2012-03-05 | 2012-03-05 | Urethral catheter and ureteral stent device comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102580224B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104784805A (en) * | 2014-01-21 | 2015-07-22 | 复旦大学附属肿瘤医院 | Auxiliary suite for ureter stent implantation |
| CN110721392A (en) * | 2019-09-29 | 2020-01-24 | 深圳泰睿仕医疗科技有限公司 | Disposable ureter guide sheath |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061668Y (en) * | 2007-07-30 | 2008-05-21 | 佛山特种医用导管有限责任公司 | Urethra dilator |
| CN101690837A (en) * | 2009-09-29 | 2010-04-07 | 中国人民解放军第三军医大学第一附属医院 | multifunctional catheter |
| CN202537722U (en) * | 2012-03-05 | 2012-11-21 | 中国人民解放军第三军医大学第二附属医院 | Urinary catheter and catheter bracket device containing same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6524268B2 (en) * | 2001-06-12 | 2003-02-25 | George M. Hayner | Combination ureteral infusion catheter/drainage stent |
| EP2346560A2 (en) * | 2008-10-10 | 2011-07-27 | Vasostar, Inc. | Medical device with a guidewire for penetrating occlusions |
-
2012
- 2012-03-05 CN CN201210055503.XA patent/CN102580224B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061668Y (en) * | 2007-07-30 | 2008-05-21 | 佛山特种医用导管有限责任公司 | Urethra dilator |
| CN101690837A (en) * | 2009-09-29 | 2010-04-07 | 中国人民解放军第三军医大学第一附属医院 | multifunctional catheter |
| CN202537722U (en) * | 2012-03-05 | 2012-11-21 | 中国人民解放军第三军医大学第二附属医院 | Urinary catheter and catheter bracket device containing same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102580224A (en) | 2012-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8343170B2 (en) | Method and device for extracting objects from the body | |
| JP5342548B2 (en) | Stent positioning device | |
| JP2008522741A (en) | Method and apparatus for performing needle guided therapy | |
| EP1945282A2 (en) | Systems and methods for dilating and accessing body lumens | |
| EP2802373A1 (en) | Catheterization apparatus and methods thereof | |
| JP2017534326A (en) | Catheter system for ureteral catheter delivery | |
| JP2010162163A (en) | Indwelling balloon catheter | |
| JP2019518524A (en) | Minimally invasive instrument for intraurethral treatment | |
| CN202537720U (en) | Ureteral stent device | |
| US20070078386A1 (en) | Movable anchoring catheter | |
| US20080114333A1 (en) | Introducer and Valve Cap for Anastomosis Device | |
| CN102580224B (en) | Urethral catheter and ureteral stent device comprising same | |
| CN102579171B (en) | Ureteral stent device | |
| WO2021164535A1 (en) | Removal device for removing ureteral stent | |
| FR2917603B1 (en) | TUBULAR PROSTHESIS AND ASSOCIATED NEED | |
| CN202537722U (en) | Urinary catheter and catheter bracket device containing same | |
| CN102580223B (en) | Ureteral stent tube and ureteral stent device applying same | |
| CN102363060B (en) | Ureteral stent | |
| BR112014028782B1 (en) | PULLER APPLIANCE, PULLER FIXING APPLIANCE AND COMMERCIAL PACKAGING COMPRISING A PULLER APPLIANCE | |
| CN106345039B (en) | Catheter introduction instrument | |
| CN204446914U (en) | A kind of catheter assembly | |
| TWM629477U (en) | Ureteral stent assembly and pusher thereof | |
| CN112245774A (en) | Ureteral stent tube kit and use method thereof | |
| CN206577168U (en) | A kind of Antislippage catheter component | |
| CN101019788A (en) | Prostate-urethra rack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20200305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |