CN102580224A - Urethral catheter and ureteral stent device comprising same - Google Patents
Urethral catheter and ureteral stent device comprising same Download PDFInfo
- Publication number
- CN102580224A CN102580224A CN201210055503XA CN201210055503A CN102580224A CN 102580224 A CN102580224 A CN 102580224A CN 201210055503X A CN201210055503X A CN 201210055503XA CN 201210055503 A CN201210055503 A CN 201210055503A CN 102580224 A CN102580224 A CN 102580224A
- 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.)
- Granted
Links
Images
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 ureteric branches rack device of having used this catheter.
Background technology
A kind of medical apparatus and instruments of ureter rack tube, profile are an elongated flexible pipe.When ureter blocks because of calculus, cicatricial stricture, tumor etc. cause, can in order to the support ureter, thereby make urine drain into bladder through with in the ureter rack tube implant patient body from kidney.Simultaneously, operation on ureter (comprising ureter microscopy, rubble and ureter open surgery) and renal pelvis operation (for example: renal pelvis cuts gets stone, renal pelvis shaping, PCN rubble etc.) routine also need be placed ureter rack tube.Also have no at present a kind of ureter rack tube can permanent indwelling in vivo, in use for some time, need operate through invasive and pull out ureter rack tube, be generally the cystoscope operation.Though cystoscope operation is not really major operation, can bring bigger misery to patient, and is especially obvious for patient male, need carry out local anesthesia or general anesthesia to palliate the agonizing sufferings to patient in the operation process.And, can cause the damage of degree varies during tube drawing to urinary tract tissue, make it take place 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 that has 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 adsorption section 122; One end of stretch section 121 links to each other with support tube body 11, and the other end links to each other with magnetic adsorption section 122, and magnetic adsorption section 122 is for having the silk thread that is interrupted iron core.When above-mentioned stretch section is in free deployed condition, the length of draught line less than in the ureter rack tube implant patient body time its afterbody to the distance of patient's urethral orifice; Simultaneously, when stretch section is stretched to greatest length, the length of draught line greater than in the ureter rack tube implant patient body time its afterbody to the distance of patient's urethral orifice.
This ureter rack tube is by after in the implant patient body; Draught line can launch in the patient body under the mobile power of urine gradually; Because the length of draught line when 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 the problem that causes patient infection after contaminated because of draught line.When needs take out ureter rack tube, utilize magnet direction outside the patient body to attract the magnetic adsorption section, under the effect of magnetic force, the stretch section elongation, draught line exposes patient's urethral orifice, and can take out ureter rack tube this moment through pulling draught line.
The above-mentioned ureter rack tube that has a draught line comprises through setting having solved the draught line of stretch section and magnetic adsorption section draught line and to have exposed the problems that cause when realizing existing ureter rack tube function.But because draught line is just unfolded after in ureter rack tube implant patient body, like this, when operator took out ureter rack tube at needs through draught line, owing to do not know the particular location of draught line, operation had inconvenience more.
According to the above, how a kind of catheter is provided and comprises the ureteric branches rack device of this catheter, to realize becoming the technical problem that those skilled in the art need solution badly through the purpose of shirtsleeve operation derivation draught line in the patient body.
Summary of the invention
In view of this, the present invention provides a kind of catheter and comprises the ureteric branches rack device of this catheter, to realize the purpose through shirtsleeve operation derivation draught line in the patient body.
For realizing above-mentioned purpose, the present invention provides following technical scheme:
A kind of catheter comprises epitheca and inner core, and inner core is set in the epitheca slidably, and the head inner surface of epitheca and the outer surface of inner core surround the draught line lock chamber;
Inner core is provided with magnetic portion near self head place.
Preferably, in above-mentioned catheter, magnetic portion is the 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 the draught line lock chamber.
Preferably, in above-mentioned catheter, the head end of epitheca is provided with the hard ring.
Preferably, in above-mentioned catheter, interior core head is provided with groove, and groove and epitheca inner surface surround the draught line lock chamber.
Preferably, in above-mentioned catheter, epitheca and inner core are respectively softish 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 softish 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, be respectively arranged with the scale portion and the tag line of reference mutually on epitheca and the inner core.
Preferably, in above-mentioned catheter, the afterbody of epitheca is provided with tag line, and the afterbody of inner core is provided with scale portion.
The invention provides a kind of catheter, be used to derive the draught line of ureter rack tube in the patient body.This catheter comprises epitheca and inner core, and inner core is set in the said epitheca slidably, and the head inner surface of epitheca and the head outer surface of inner core surround the draught line lock chamber, and wherein, said inner core is provided with magnetic portion near self head place.When using catheter provided by the present invention to derive draught line; Adopt conventional indwelling catheter operation that catheter is sent into anterior urethra; Behind magnetic portion adsorption column draught line,, make draught line be embedded into the draught line lock chamber through the pulled backwards inner core; Whole then outwards pulling catheter can make draught line draw urethral orifice smoothly.
Catheter provided by the invention is confirmed the position of draught line through using magnetic portion, through inner core and cooperating of epitheca blocking draught line and it being drawn, has realized the purpose through shirtsleeve operation derivation draught line in the patient body.
The invention also discloses a kind of ureteric branches rack device, this ureteric branches rack device comprises the ureter rack tube that is provided with the magnetic adsorption section and above-mentioned catheter.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of ureter rack tube in the prior art;
The structural representation of the catheter that Fig. 2 provides for the embodiment of the invention;
The structural representation of the catheter head that Fig. 3 provides for the embodiment of the invention;
The structural representation of the catheter that is provided with the hard ring that Fig. 4 provides for the embodiment of the invention;
Fig. 5 is the structural representation of the catheter that another embodiment of the present invention provided;
Sketch map when Fig. 6 does not embed draught line for catheter that the embodiment of the invention provided;
Fig. 6-1 is the local enlarged diagram of the embodiment of the invention;
Fig. 6-2 is the local enlarged diagram of the embodiment of the invention;
Sketch map when Fig. 7 is the catheter embedding draught line that the embodiment of the invention provided;
Fig. 7-1 is the local enlarged diagram of the embodiment of the invention;
Fig. 7-2 is the local enlarged diagram of the embodiment of the invention.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The present invention provides a kind of catheter and comprises the ureteric branches rack device of this catheter, to realize the purpose through shirtsleeve operation derivation draught line in the 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 the 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 that is provided with on the inner core 22 is the magnetic rubber piece identical with the inner core profile.
Epitheca 21 is processed by softish silica gel equally.
The inner surface of epitheca 21 and inner core 22 heads lean on the outer surface of position, back to surround draught line lock chamber 3.
When using the catheter that the embodiment of the invention provided; At first adopt the operation of conventional indwelling catheter that catheter is sent into patient's anterior urethra, utilize magnetic portion on the inner core, after estimating that the two comes in contact near the magnetic attraction portion of draught line; The pulled backwards inner core; Make draught line embed the draught line lock chamber between catheter epitheca and the inner core, last whole outwards pulling catheter, thus derive the intravital draught line of patient.Can take out the intravital ureter rack tube of patient this moment through pulling draught line.
Catheter provided by the invention is confirmed the position of draught line through using magnetic portion, through inner core and cooperating of epitheca blocking draught line and it being drawn, has realized the purpose through shirtsleeve operation derivation draught line in the patient body.
In the above-described embodiments, soft because epitheca is the silica gel material, therefore embed the draught line lock chamber at draught line, outwards spur in the process of catheter, deformation possibly take place in epitheca, and causes draught line to deviate from the 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 the epitheca head, to prevent epitheca deformation takes place when receiving external force.
On the basis of the foregoing description, the draught line lock chamber in the embodiment of the invention can also be surrounded by the groove and the epitheca inner surface of interior core head.
Please refer to Fig. 5, interior core head leans on the position, back to be provided with groove 223, and the diameter of groove 223 place's inner core cross sections is less than the diameter of other cross section of inner core.
Groove 223 cooperates with the epitheca inner surface, surrounds the draught line lock chamber.
In the above-described embodiments, operator can't observe directly catheter in the intravital concrete condition of patient, need judge by virtue of experience whether the magnetic portion of catheter contacts with the magnetic adsorption section of draught line.This has increased the use difficulty of catheter.Therefore, another embodiment of the present invention is through being provided with sign 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 when epitheca 21 heads can contact with the target seeker 221 on the inner core 22, tag line 224 flushed with the epitheca end.
After draught line embedded draught line holddown groove 3, in the process that inner core 22 is pulled back, draught line 4 was stuck between inner core 22 and the epitheca 21, makes epitheca 21 heads can't touch the target seeker 221 on the inner core 21.At this moment, tag line 224 is blocked by epitheca 21.Opposite, 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.
Through tag line is set, operator can successfully embed draught line in the draught line holddown groove judging whether through observing tag line, have reduced the operation easier of catheter.
On the basis of the foregoing description, 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 ureteric branches rack device, this ureteric branches rack device comprises the ureter rack tube that is provided with the magnetic adsorption section and above-mentioned catheter.
Each embodiment adopts the mode of going forward one by one to describe in this description, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a catheter is characterized in that, comprises epitheca and inner core, and said inner core is set in the said epitheca slidably, and the head inner surface of said epitheca and the outer surface of said inner core surround the draught line lock chamber;
Said inner core is provided with magnetic portion near self head place.
2. catheter according to claim 1 is characterized in that, said magnetic portion is the magnetic rubber piece.
3. catheter according to claim 1 is characterized in that, the head inner surface of said epitheca is coniform inclined-plane, and said coniform inclined-plane and said interior core outer surface surround said draught line lock chamber.
4. catheter according to claim 3 is characterized in that the head end of said epitheca is provided with the hard ring.
5. catheter according to claim 1 is characterized in that, said interior core head is provided with groove, and said groove and said epitheca inner surface surround said draught line lock chamber.
6. catheter according to claim 1 is characterized in that, said epitheca and said inner core are respectively softish silica gel epitheca and silica gel inner core.
7. catheter according to claim 6; It is characterized in that; The head of said inner core is provided with target seeker, and said target seeker is softish oval ball, and the cross section maximum radius of said oval ball is greater than the maximum radius of other position cross section of said catheter.
8. catheter according to claim 1 is characterized in that, is respectively arranged with the scale portion and the tag line of reference mutually on said epitheca and the said inner core.
9. will remove 8 described catheters according to right, it is characterized in that, the afterbody of said epitheca is provided with tag line, and the afterbody of said inner core is provided with scale portion.
10. a ureteric branches rack device is characterized in that, said ureteric branches rack device comprises ureter rack tube and each the described catheter of claim 1-9 that is provided with the magnetic adsorption section.
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 true CN102580224A (en) | 2012-07-18 |
| CN102580224B 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) |
Cited By (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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020188246A1 (en) * | 2001-06-12 | 2002-12-12 | Hayner George M. | Combination ureteral infusion catheter/drainage stent |
| 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 |
| US20110196397A1 (en) * | 2008-10-10 | 2011-08-11 | Vasostar, Inc. | Medical device with a guidewire for penetrating occlusions |
| 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 |
-
2012
- 2012-03-05 CN CN201210055503.XA patent/CN102580224B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020188246A1 (en) * | 2001-06-12 | 2002-12-12 | Hayner George M. | Combination ureteral infusion catheter/drainage stent |
| CN201061668Y (en) * | 2007-07-30 | 2008-05-21 | 佛山特种医用导管有限责任公司 | Urethra dilator |
| US20110196397A1 (en) * | 2008-10-10 | 2011-08-11 | Vasostar, Inc. | Medical device with a guidewire for penetrating occlusions |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102580224B (en) | 2014-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8343170B2 (en) | Method and device for extracting objects from the body | |
| JP5111112B2 (en) | Device for performing needle-guided therapy | |
| US8343036B1 (en) | Flaccid tubular membrane and insertion appliance for surgical intubation | |
| EP1919546B1 (en) | Drainage catheter with extended inflation lumen | |
| US8287602B2 (en) | Urinary stent | |
| ES2582203T3 (en) | Device for stent positioning | |
| JP2012213435A (en) | Endoscope insertion assistive device | |
| JP7189023B2 (en) | Minimally invasive instrument for intraurethral procedures | |
| CN202537720U (en) | Ureteral stent device | |
| JP5327986B2 (en) | Endoscope insertion aid | |
| CN202654270U (en) | Noninvasive pipe extractor for support pipe in ureter | |
| US20070078386A1 (en) | Movable anchoring catheter | |
| CN202537722U (en) | Urinary catheter and catheter bracket device containing same | |
| CN102579171B (en) | Ureteral stent device | |
| WO2021164535A1 (en) | Removal device for removing ureteral stent | |
| CN102580224B (en) | Urethral catheter and ureteral stent device comprising same | |
| CN102580223B (en) | Ureteral stent tube and ureteral stent device applying same | |
| ES2625046T3 (en) | Modified pusher | |
| CN102363060A (en) | Ureteral stent | |
| CN106345039B (en) | Catheter introduction instrument | |
| CN100496435C (en) | Prostate-urethra rack | |
| CN214209129U (en) | Special ureter for fixing flexible ureteroscope sheath | |
| US20160309986A1 (en) | Endoscope system | |
| CN102580226A (en) | Medical traction wire and ureteral stent comprising same | |
| CN215018722U (en) | double-J pipe taking-out device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20200305 |