CN202537721U - Medical traction wire and ureteral stent using same - Google Patents
Medical traction wire and ureteral stent using same Download PDFInfo
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- CN202537721U CN202537721U CN 201220079034 CN201220079034U CN202537721U CN 202537721 U CN202537721 U CN 202537721U CN 201220079034 CN201220079034 CN 201220079034 CN 201220079034 U CN201220079034 U CN 201220079034U CN 202537721 U CN202537721 U CN 202537721U
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- medical
- draught line
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- magnetic adsorption
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Abstract
The utility model discloses a medical traction wire and a ureteral stent using the same. The medical traction wire comprises an elastic section and a magnetic attraction section which are fixedly connected with each other, wherein the elastic section is an elastic thread, and the magnetic attraction section is a thread provided with intermittent iron cores. The utility model also provides a ureteral stent using the medical traction wire. When the ureteral stent is used, after the ureteral stent is implanted into the body of a patient, the medical traction wire can spread in the body of the patient, but a free end of the medical traction wire is still positioned in the body of the patient; and when the ureteral is required to be taken out, a magnet is used for attracting the magnetic attraction section, the free end of the medical traction wire is led out, and the ureteral stent is taken out of the body of the patient by means of dragging the medical traction wire.
Description
Technical field
This utility model relates to medical instruments field, more particularly, relates to a kind of medical draught line and has used the ureter rack tube of this draught line.
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 medical draught line.Please refer to Fig. 1; This ureter rack tube comprises support tube body 1 and medical draught line 2, and wherein, support tube body construction 1 is identical with existing ureter rack tube; One end and the support tube body 1 of medical draught line 2 are fixedly linked; The other end is that free end and support tube body are separated, and the free end of medical draught line 2 is wrapped in the end of support tube body 1, and the outside scribbles degradable coating 3.
This ureter rack tube that has a medical draught line is identical with common ureter rack tube in the implant patient body time, but an end that is connected with medical draught line is outside the patient body.This ureter rack tube is in the implant patient body after a period of time; The degradable coating is decomposed gradually; Medical draught line can trail with flowing of urine after losing the parcel of degradable coating gradually, and its free end finally excretes with urine, takes out ureter rack tube this moment if desired; Can be from the medical draught line of urethral orifice tractive, and then the ureter rack tube that implants taken out.
But during the ureter rack tube stated in the use, medical draught line decomposes the back in the degradable coating and excretes with urine.If also do not reach the condition of taking out ureter rack tube this moment, no matter, still, all should not in the patient body, implant new ureter rack tube once more from the angle of Financial cost from bring the angle of new misery to patient.And the free end of having discharged the medical draught line outside the patient body is suspended from urethral orifice, and at first, from the angle of health, the end of a thread that exposes becomes easily infected by dirt, if dirt causes infection easily in medical draught line gets into the patient body; Secondly, the end of a thread that medical draught line exposes causes patient's discomfort easily.
By the above; How a kind of medical draught line is provided and uses the ureter rack tube of this medical draught line; State in realization under the prerequisite of ureter rack tube function; Solve existing medical draught line and become easily infected by the problem that dirt causes infection and causes patient's discomfort easily, become the technical problem that those skilled in the art need solution badly.
The utility model content
In view of this, this utility model provides a kind of medical draught line, under the prerequisite that realizes existing ureter rack tube function, solves existing medical draught line and becomes easily infected by the problem that dirt causes infection and causes patient's discomfort easily.
For realizing above-mentioned purpose, this utility model provides following technical scheme:
A kind of medical draught line comprises the stretch section and the magnetic adsorption section that are fixedly linked, and stretch section is rubber-like silk thread or helical form elastic thread, and the magnetic adsorption section is to be provided with the silk thread that is interrupted iron core.
Preferably, in above-mentioned medical draught line, the spiral type elastic thread that the helical form elastic thread is processed for the high-molecular biologic compatibility material.
Preferably, in above-mentioned medical draught line, the outside of magnetic adsorption section hoop has a plurality of ferrous material rings, and the distance on the silk thread between adjacent two ferrous material rings is not less than silk thread radius and ferrous material ring radius sum.
Preferably, in above-mentioned medical draught line, the magnetic adsorption section can also be provided with magnet for an end, the silk thread that the other end and helical form elastic thread are fixedly linked.
This utility model provides a kind of medical draught line, comprises stretch section and magnetic adsorption section, and wherein stretch section is rubber-like silk thread or helical form elastic thread, and the magnetic adsorption section is to be provided with the silk thread that is interrupted iron core.With the ureter rack tube is example, and the free end of the medical draught line stretch section that this utility model provided and an end of ureter rack tube are fixedly linked.In ureter rack tube implant patient body, medical draught line can freely launch in patient's ureter and urethra, but medical draught line free end still is in the patient body.When needs take out ureter rack tube, utilize supporting medical apparatus and instruments to attract the magnetic adsorption section of medical draught line, the free end of medical draught line is drawn, through pulling medical draught line ureter rack tube is taken out in the patient body again.
The medical draught line that this utility model provided has comprised stretch section and magnetic adsorption section.Medical draught line free end is positioned at the patient body when stretch section freely launches, and stretch section when launching fully medical draught line free end expose outside the patient body; Simultaneously, attract the magnetic adsorption section through the magnetic adsorption section being set, can using the medical apparatus and instruments that has magnetic, thereby the tensile elasticity section is drawn medical draught line free end.Compare with existing medical draught line; The medical draught line that this utility model provided rests in the patient body at ordinary times fully, can not be infected with extraneous dirt, also just can not cause patient infection because of the pollution of medical draught line; Simultaneously, patient can not feel well because of exposing external the end of a thread yet.
This utility model also provides a kind of ureter rack tube, comprises support tube body and medical draught line, and wherein, the support tube body is identical with existing ureter rack tube, and medical draught line is above-mentioned medical draught line.
The ureter rack tube that this utility model provided is through using an end to be stretch section; The other end is the medical draught line of magnetic adsorption section, has solved the medical draught line of existing ureter rack tube and has becomed easily infected by the problem that dirt causes infection and causes patient's discomfort easily.
Description of drawings
In order to be illustrated more clearly in this utility model embodiment 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 embodiment of this utility model, 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 for having the structural representation of the ureter rack tube of medical draught line in the prior art;
The structural representation of the medical draught line that Fig. 2 is provided for this utility model embodiment;
Structural representation when Fig. 3 provides medical draught line to be applied to ureter rack tube for this utility model embodiment;
Fig. 4 provides the structural representation of the medical draught line that adopts the helical form elastic thread for this utility model embodiment;
Fig. 5 provides the structural representation of the medical draught line that adopts outer hoop-iron material ring for this utility model embodiment;
The structural representation of the medical draught line that is provided with magnet that Fig. 6 is provided for this utility model embodiment.
The specific embodiment
To combine the accompanying drawing among this utility model embodiment below, the technical scheme among this utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is this utility model part embodiment, rather than whole embodiment.Based on the embodiment in this utility model, 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 this utility model protection.
This utility model embodiment discloses a kind of medical draught line, under the prerequisite that realizes existing ureter rack tube function, solves existing medical draught line and becomes easily infected by the problem that dirt causes infection and causes patient's discomfort easily.
A kind of medical draught line, its structure is as shown in Figure 2, comprises stretch section 21 and magnetic adsorption section 22, and stretch section 21 is fixedly linked with magnetic adsorption section 22.
The magnetic adsorption section is to be provided with the silk thread that is interrupted iron core, and iron core makes medical draught line can be had the copolymerization absorption of magnetic, and the iron core that is interrupted has guaranteed that silk thread has good flexible, can be with the structural change profile of inside of human body.
Simultaneously, medical draught line should possess enough intensity, thereby in the pulling process, does not rupture because of undercapacity.
Below to be combined as example, specify the use of the medical draught line that this utility model embodiment provided with ureter rack tube.
As shown in Figure 3, at first choose suitable medical draught line length, the length of medical draught line should meet the following conditions: after in ureter rack tube implant patient body, when stretch section 21 had drift, medical draught line free end should be in the patient body; When stretch section 21 had greatest length, medical draught line free end should expose patient's urethral orifice.
Free end and the end of ureter rack tube outside the patient body with stretch section 21 is fixedly linked again, and medical draught line rule is wound on the ureter rack tube.
Ureter rack tube is implanted in the patient body, and medical draught line freely launches by flowing of urine.After medical draught line freely launched in the patient body, because its length restriction, medical draught line free end can be positioned at patient's bladder or anterior urethra, and can not expose outside the patient body.
When needs take out ureter rack tube; The medical apparatus and instruments that has magnetic through use attracts magnetic adsorption section 22, and under the effect of magnetic force, stretch section 21 is stretched; Magnetic adsorption section 22 exposes outside the patient body, and can take out ureter rack tube this moment through pulling medical draught line.
The medical draught line that this utility model provided has comprised stretch section and magnetic adsorption section.Medical draught line free end is positioned at the patient body when stretch section freely launches, and stretch section when launching fully medical draught line free end expose outside the patient body; Simultaneously, attract the magnetic adsorption section through the magnetic adsorption section being set, can using the medical apparatus and instruments that has magnetic, thereby the tensile elasticity section is drawn medical draught line free end.Compare with existing medical draught line; The medical draught line that this utility model provided rests in the patient body at ordinary times fully, can not be infected with extraneous dirt, also just can not cause patient infection because of the pollution of medical draught line; Simultaneously, patient can not feel well because of exposing external the end of a thread yet.
On the basis of the foregoing description, the stretch section of medical draught line that this utility model provides is specially the helical form elastic thread.
As shown in Figure 4, helical form elastic thread 41 its radiuses are slightly larger than its matching used medical apparatus and instruments 42, and therefore, helical form elastic thread 41 rules are wrapped in outside the medical apparatus and instruments 42.
Increase self length and compare through dwindling self cross-sectional area with elastomer yarn in the above embodiments; The medical draught line that present embodiment provided uses the helical form elastic thread as stretch section; When receiving external force; The helical form elastic thread increases self length through untiing spiral, and its cross-sectional area significant change can not take place, thereby the medical draught line that present embodiment provided has better hot strength.
Preferably, in the above embodiments, the helical form elastic thread of helical form elastic thread for processing by the high-molecular biologic compatibility material, its material has guaranteed can not cause untoward reaction after medical draught line is in the implant patient body.
Please refer to Fig. 5, can be in order to guarantee medical draught line by smooth taking-up, on the basis of the foregoing description, hoop has a plurality of ferrous material rings 52 to the medical draught line that present embodiment provided in the outside of magnetic adsorption section 51.When using supporting medical apparatus and instruments to attract the adsorption section of medical draught line; The ferrous material ring of hoop outside magnetic adsorption section silk thread increased the magnetic force between medical draught line and the medical apparatus and instruments, makes that medical draught line can be attracted by medical apparatus and instruments more easily when taking out medical draught line.
Preferably, the distance on the silk thread between adjacent two ferrous material rings is not less than silk thread radius and ferrous material ring radius sum, has good flexible to guarantee silk thread.
On the basis of the foregoing description, the magnetic adsorption section of medical draught line that this utility model provides can also be provided with magnet for an end, the silk thread that the other end and helical form elastic thread are fixedly linked.
Please refer to Fig. 6, an end of medical draught line 61 is fixed with magnet 611, and the other end and helical form elastic thread 62 are fixedly linked.
Compare with the medical draught line that is provided in the foregoing description, medical draught line magnetic adsorption section one end that present embodiment provides is provided with magnet, has further increased the magnetic force between the medical draught line and medical apparatus and instruments when taking out medical draught line.
This utility model also provides a kind of ureter rack tube; Comprise support tube body and medical draught line; The support tube body is a hollow tubular structure; Its material adopts medical macromolecular materials, and for example: polyethylene, silicones, silicone are the block copolymer on basis, the block copolymer of styrene/ethylene/butylene etc.The tube wall of support tube body is provided with several urethral catheterization holes.In addition; The two ends of support tube body all bend to circular arc; The two ends of support tube body are crooked in the opposite direction with respectively, and after the bending, the bending circular arc of an end of support tube body and the bending circular arc of the other end of support tube body lay respectively at the both sides of support tube body.
Medical draught line comprises magnetic adsorption section and stretch section; The magnetic adsorption section is to be provided with the silk thread that is interrupted iron core; Stretch section is an elastomer yarn; Stretch section is arranged between support tube body and the magnetic adsorption section, when stretch section is in free deployed condition, the length of medical draught line less than the support tube body after implantation its afterbody to the length of patient's urethral orifice.Medical draught line is wrapped in the afterbody of support tube body, twines the length of back on the support tube body at 4-6cm.One end of medical draught line and the afterbody of support tube body fix; The other end begins to twine to the afterbody of support tube body from the middle part of support tube body; After this winding direction of medical draught line and support tube body are put into human body; The direction that urine is discharged is consistent, and promptly medical draught line can unclamp along with flowing of urine, and can prevent that medical draught line from tiing a knot in vivo.Medical draught line can twine one deck on the support tube body, in addition, also can on the support tube body, twine multilamellar according to the thickness situation of medical draught line.Simultaneously, medical draught line external packets is wrapped with degradation material, to guarantee that the medical draught line that rule is twined can be not at random in implantation process.
The ureter rack tube that this utility model provided is through using an end to be stretch section; The other end is the medical draught line of magnetic adsorption section, has solved the medical draught line of existing ureter rack tube and has becomed easily infected by the problem that dirt causes infection and causes patient's discomfort easily.
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 this utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from this utility model or scope in other embodiments among this paper.Therefore, this utility model 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 (5)
1. a medical draught line is characterized in that, said medical draught line comprises stretch section and the magnetic adsorption section that is fixedly linked, and said stretch section is rubber-like silk thread or helical form elastic thread, and said magnetic adsorption section is to be provided with the silk thread that is interrupted iron core.
2. medical draught line according to claim 1 is characterized in that, the spiral type elastic thread that said helical form elastic thread is processed for the high-molecular biologic compatibility material.
3. medical draught line according to claim 1; It is characterized in that; The outside hoop of said magnetic adsorption section has a plurality of ferrous material rings, and the distance on the said silk thread between adjacent two said ferrous material rings is not less than said silk thread radius and said ferrous material ring radius sum.
4. medical draught line according to claim 1 is characterized in that, said magnetic adsorption section can also be provided with magnet for an end, the silk thread that the other end and said helical form elastic thread are fixedly linked.
5. a ureter rack tube comprises support tube body and medical draught line, it is characterized in that, said medical draught line is each described medical draught line of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220079034 CN202537721U (en) | 2012-03-05 | 2012-03-05 | Medical traction wire and ureteral stent using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220079034 CN202537721U (en) | 2012-03-05 | 2012-03-05 | Medical traction wire and ureteral stent using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202537721U true CN202537721U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220079034 Expired - Fee Related CN202537721U (en) | 2012-03-05 | 2012-03-05 | Medical traction wire and ureteral stent using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202537721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580226A (en) * | 2012-03-05 | 2012-07-18 | 中国人民解放军第三军医大学第二附属医院 | Medical traction wire and ureteral stent comprising same |
| CN113041484A (en) * | 2021-04-20 | 2021-06-29 | 金卫 | Ureteral stent and external member capable of controlling discharge time and free of surgical extraction |
-
2012
- 2012-03-05 CN CN 201220079034 patent/CN202537721U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580226A (en) * | 2012-03-05 | 2012-07-18 | 中国人民解放军第三军医大学第二附属医院 | Medical traction wire and ureteral stent comprising same |
| CN113041484A (en) * | 2021-04-20 | 2021-06-29 | 金卫 | Ureteral stent and external member capable of controlling discharge time and free of surgical extraction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121121 Termination date: 20170305 |