CN108785825B - Part quick dissolving type anti-reflux ureteral stent - Google Patents
Part quick dissolving type anti-reflux ureteral stent Download PDFInfo
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- CN108785825B CN108785825B CN201810832868.6A CN201810832868A CN108785825B CN 108785825 B CN108785825 B CN 108785825B CN 201810832868 A CN201810832868 A CN 201810832868A CN 108785825 B CN108785825 B CN 108785825B
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- tube body
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- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 17
- 210000000626 ureter Anatomy 0.000 claims abstract description 81
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004090 dissolution Methods 0.000 claims abstract description 6
- 210000003734 kidney Anatomy 0.000 claims description 10
- 108010010803 Gelatin Proteins 0.000 claims description 4
- 239000008273 gelatin Substances 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 4
- 235000019322 gelatine Nutrition 0.000 claims description 4
- 235000011852 gelatine desserts Nutrition 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010992 reflux Methods 0.000 abstract description 15
- 206010020524 Hydronephrosis Diseases 0.000 abstract description 2
- 208000002193 Pain Diseases 0.000 abstract description 2
- 230000001939 inductive effect Effects 0.000 abstract description 2
- 210000001635 urinary tract Anatomy 0.000 abstract description 2
- 210000002700 urine Anatomy 0.000 description 18
- 210000000244 kidney pelvis Anatomy 0.000 description 13
- 230000008855 peristalsis Effects 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 6
- 208000024891 symptom Diseases 0.000 description 6
- 206010005052 Bladder irritation Diseases 0.000 description 4
- 208000031481 Pathologic Constriction Diseases 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 208000019206 urinary tract infection Diseases 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000004877 mucosa Anatomy 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- 208000008035 Back Pain Diseases 0.000 description 2
- 208000008930 Low Back Pain Diseases 0.000 description 2
- 208000037062 Polyps Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000002757 inflammatory effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000027939 micturition Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 230000002485 urinary effect Effects 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000034309 Bacterial disease carrier Diseases 0.000 description 1
- 208000031868 Calculus ureteric Diseases 0.000 description 1
- 208000000913 Kidney Calculi Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010029148 Nephrolithiasis Diseases 0.000 description 1
- 206010036018 Pollakiuria Diseases 0.000 description 1
- 208000000014 Ureteral Calculi Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 206010013990 dysuria Diseases 0.000 description 1
- 238000009212 extracorporeal shock wave lithotripsy Methods 0.000 description 1
- 230000003779 hair growth Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001020 rhythmical effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 208000022934 urinary frequency Diseases 0.000 description 1
- 230000036318 urination frequency Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09191—Guide wires made of twisted wires
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to a part quick dissolution type anti-reflux ureteral stent which comprises a stent tube body, wherein the stent tube body is sequentially divided into a kidney-shaped section tube body, a ureter upper section tube body, a ureter lower section tube body, a ureter bladder wall section tube body and a bladder section tube body which are connected into a whole from top to bottom, the ureter lower section tube body, the ureter bladder wall section tube body and the bladder section tube body are soluble tube bodies, double strands of filament wires penetrate through the soluble tube bodies, the upper ends of the double strands of filament wires are connected with the ureter upper section tube body, the lower parts of the double strands of filament wires are converged into single strands of filament wires, and the lower ends of the double strands of filament wires are connected with a silica gel ring positioned in the bladder section tube body. Solves the problem of double J-tube reflux, especially for patients needing to keep ureteral stents for a long time, can reduce the probability of inducing hair to develop on the upper urinary tract, avoid the aggravation of hydronephrosis caused by ureteral reflux, reduce the pain of the patients and improve the quality of life.
Description
Technical Field
The invention relates to a part of quick dissolution type anti-reflux ureteral stent.
Background
The ureteral stent has wide application in urology surgery, and is suitable for kidney and ureteral calculus operation and before extracorporeal shock wave lithotripsy; patients who need to relieve obstruction are pressed outside the ureter; is suitable for the treatment of kidney transplantation, ureteral stenosis dilatation and the like, and part of patients need to be kept for a long time. The ends at two sides of the ureteral stent are curled into a double-pig tail shape, as shown in figure 1, the front end and the rear end of the stent are in a J shape, and the ends are also called double J tubes. The end is bent into a round shape in opposite directions, one end is positioned in the kidney and the other end is positioned in the bladder. The bracket body is arranged in the ureter cavity. After being implanted into the ureter, the utility model can play roles in draining urine, preventing ureter stenosis and adhesion blockage, etc. At present, the ureteral stent is mostly made of medical polymer materials such as silicon rubber or polyurethane, and part of patients with tumor need to be placed for a long time and mostly made of metal. The ureteral stent tube has the advantages that the operation success rate is improved by the application, but some complications still can be caused after the ureteral stent tube is placed, and symptoms related to the vesicoureteral urine reflux, such as lumbago, lumbago during urination, urinary frequency, urgent urination, painful urination and other bladder stimulation symptoms, urinary infection, ureteral stent tube stones and the like are common. Among them, bladder irritation symptoms and vesicoureteral urine reflux are important problems to be solved at present, and further improvement of the therapeutic effect is severely limited for patients who need to keep the double J tube for a long time, and serious complications can be caused.
The reason for the reflux is mainly that the ureteral stent is a catheter capable of conducting two-way drainage, after the double J-tube is reserved, the anti-reflux mechanism of the inner section of the ureter bladder wall is seriously weakened or eliminated, and when the pressure in the bladder is greater than the pressure in the renal pelvis and the ureter, the reflux of urine in the bladder to the ureter and the renal pelvis inevitably occurs. In addition, after the ureteral stent is placed, urine is continuously drained, the cone of the renal pelvis and the ureter loses filling stimulation, so that rhythmic peristalsis of the ureter is obviously weakened or eliminated, and the probability and severity of urine reflux rate are increased.
Vesicoureteral urine reflux affects the therapeutic effect, especially for those who need to be placed for a long period of time. Reflux causes increased renal pelvis pressure, and long-term reflux can cause atrophy of the renal papillae and renal cortex, compromising renal function. Foreign matters are reserved in the urinary system for a long time, and bacteria are easy to colonize the ureteral stent to cause urinary infection; the ureteral peristalsis is weakened, so that the self-cleaning capability of the urinary system is reduced, and the probability of upper urinary tract infection is increased. The long-term repeated pressure increase and infection in the renal pelvis can easily damage the kidney, even lead to the thinning of the renal cortex, and greatly influence the treatment effect. However, no effective solution is available at present, and patients are often recommended to drink more water and urinate frequently, so that the bladder is in a deficiency state as much as possible, and overfilling of the bladder and overrising of abdominal pressure are avoided; antibiotics are used when infection occurs, and part of patients are forced to replace ureteral stents. However, these approaches do not fundamentally address bladder irritation and bladder ureter urine reflux and related complications.
Several anti-reflux ureteral stent designs are currently known, including: the ureter bladder wall section is designed into a traction wire, but the ureter section still adopts the traditional design, and the ureter peristaltic rush is still severely inhibited and difficult to fully drain although a short anti-reflux mechanism in the ureter bladder wall is utilized. Similar products MiniJFil are reported abroad, and a part of ureteral stent is replaced by a silk thread, but the silk thread is soft, so that the ureteral stent is difficult to place from the side of a renal pelvis in laparoscopic pyeloplasty, and the problem can be solved by embedding a lower ureter structure in the ureteral stent which can be rapidly dissolved.
Disclosure of Invention
In order to solve the technical defects, the invention provides an anti-reflux ureteral stent tube, which solves the problem of vesicoureteral urine reflux of the existing ureteral stent tube.
The invention is realized by the following measures:
the invention relates to a part quick dissolution type anti-reflux ureteral stent which comprises a stent tube body, wherein the stent tube body is sequentially divided into a kidney-Monday section tube body, a ureter upper section tube body, a ureter lower section tube body, a ureter bladder wall section tube body and a bladder section tube body which are connected into a whole from top to bottom, the kidney-Monday section tube body and the ureter upper section tube body are flexible hollow catheters, a plurality of through holes are formed in the flexible hollow catheters, the ureter lower section tube body, the ureter bladder wall section tube body and the bladder section tube body are dissolvable tube bodies, double filament wires penetrate through the dissolvable tube body, the upper ends of the double filament wires are connected with the ureter upper section tube body, the lower parts of the double filament wires are converged into single filament wires, and the lower ends of the double filament wires are connected with a silica gel ring positioned in the bladder section tube body.
The kidney-Monte-segment tube body and the ureter bladder wall segment tube body are curled into circles in opposite directions, the length of the upper section of the ureter is 6-8cm, the length of the double-strand fine wire is 2cm, and the total length of the double-strand wire and the single-strand wire is 18-20cm.
The upper ends of the double strands of filament wires are wound into a circular ring shape and are connected to two sides of the lower end of the upper section tube body of the ureter.
The soluble tube body is made of soluble plant gelatin material.
The shape of the silica gel ring is elliptical.
The beneficial effects of the invention are as follows: the invention solves the problem of double J-tube reflux, does not affect the placement of the ureteral stent in the celioscope renal pelvis separation and shaping operation, reduces the inhibition of ureteral peristalsis caused by ureteral placement, and simultaneously reduces the bladder irritation symptom of double J-tube in bladder segments. Can be used for ureteral stent retention in the renal pelvis separation and fracture forming operation, can prevent urine in the bladder from flowing back to the ureter and the renal pelvis, and especially can reduce the probability of inducing hair growth in the upper urinary tract for patients needing to retain the ureteral stent for a long time, avoid the hydronephrosis aggravated caused by the ureteral reflux, relieve the pain of the patients and improve the life quality.
Drawings
Fig. 1 is a schematic diagram of a conventional ureteral stent.
Fig. 2 is a schematic structural view of the present invention.
FIG. 3 is a schematic diagram of the structure of the dissolvable tube after dissolution.
Fig. 4 is a schematic structural view of the connection between the upper end of the bifilar filament wire and the lower end of the ureter upper tube.
Wherein: 1 kidney Monte section body, 2 ureter upper segment body, 3 ureter hypomere body, 4 ureter bladder wall section body, 5 bladder section body, 6 through-holes, 7 filament wires, 8 silica gel rings.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 2, the partly quick dissolution type anti-reflux ureteral stent comprises a stent tube body, wherein the stent tube body is sequentially divided into a kidney-Monday section tube body 1, a ureter upper section tube body 2, a ureter lower section tube body 3, a ureter bladder wall section tube body 4 and a bladder section tube body 5 which are connected into a whole from top to bottom, the kidney-Monday section tube body 1 and the ureter upper section tube body 2 are flexible hollow catheters, a plurality of through holes 6 are formed in the flexible hollow catheters, the ureter lower section tube body 3, the ureter bladder wall section tube body 4 and the bladder section tube body 5 are dissolvable tubes, double-strand filament wires 7 penetrate through the dissolvable tubes, the upper ends of the double-strand filament wires 7 are connected with the ureter upper section tube body 2, the lower parts of the double-strand filament wires 7 are converged into single-strand filament wires 7, and the lower ends of the double-strand filament wires are connected with a silica gel ring 8 positioned in the ureter section tube body 5.
The kidney-Monte-segment tube body 1 and the ureter bladder wall segment tube body 4 are curled into circles in opposite directions, the length of the upper section of the ureter is 6-8cm, the length of the double-strand fine wire is 7 cm, and the total length of the double-strand wire and the single-strand wire is 18-20cm. The upper ends of the double strands of filament wires 7 are wound into a circular ring shape and connected to both sides of the lower end of the upper tube of the ureter, as shown in fig. 4. The dissolvable tube body is made of soluble gelatin material. The shape of the silica gel ring 8 is elliptical.
The working principle is as follows: the implantation method is the same as that of a common double J tube, and is carried out under the guidance of a guide wire. The kidney Meng Na is placed into the kidney 1, then the kidney extends along the ureter, finally the bladder 5 is placed into the bladder, and after the soluble tube containing plant gelatin is dissolved, the filament thread and the silica gel ring 8 are exposed, as shown in fig. 3. Urine generated by the kidney Meng Na enters the kidney-Monte section tube body 1 from the through hole 6 and then is drained to the ureter through the ureter upper section tube body 2, the fine wire does not influence the peristalsis of the ureter, the peristalsis of the ureter forms a pumping effect like a pump, the evacuation of the renal pelvis and the upper section ureter is facilitated, and the urine flows into the bladder from top to bottom through the peristalsis of the ureter.
The doubled filament wires 7 were 2cm long and then joined into single filaments 7 to minimize peristaltic effects on the middle and lower ureters. After urine is drained to the bifilar wire position, the urine can flow into the bladder through the peristalsis of the ureter. The ureter bladder wall section tube body is a single-strand silk thread, the influence of the thin silk thread on the anti-reflux mechanism of the ureter bladder wall inner section is small, and the anti-reflux mechanism of the human body is reserved to the maximum extent.
Urine flows down through the filament strand 7, through the inner bladder wall segment of the ureter and into the bladder. Because the thin thread wire 7 is adopted in the middle of the stent tube body, the stent tube body can not conduct bidirectional drainage, urine can flow into the bladder through ureter peristalsis, even when the pressure in the bladder is greater than the pressure in the renal pelvis and the ureter, as long as the pressure difference is not greater than the anti-reflux of the human body, the thin thread wire 7 can not conduct upward flow guiding urine, and therefore the occurrence of the reflux of the urine in the bladder to the ureter and the renal pelvis can be reduced or avoided.
The tail end of the upper section tube body 2 of the ureter adopts a round and blunt sliding surface design so as to reduce friction with ureter mucosa when the double J tube is pulled out; the upper tube body close to the ureter adopts the design of double strand filament wires 7 to make the atress of tube wall both sides even when pulling out two J pipes, make the tube body keep and ureter long diameter at ordinary times, reduce or avoid increasing friction because of the tube wall slope, reduce or avoid damaging ureter mucosa.
Filament wire 7 may also reduce irritation to ureteral mucosa, thereby reducing inflammatory polyp formation; the silica gel ring 8 can prevent the ureter from sliding in, so that the position change of the double J tube is avoided, the volume of the silica gel ring 8 is obviously reduced compared with that of the traditional double J tube bladder segment, and the silica gel ring is soft, so that the bladder stimulation symptom can be obviously relieved, and the generation of inflammatory polyps in the bladder is reduced or avoided.
In conclusion, the invention utilizes the ureteral peristalsis of the human body and the anti-reflux mechanism of the inner section of the ureteral bladder wall, and utilizes the pumping effect of the ureteral peristalsis, thereby not only leading the narrow section to be fully drained, but also reducing or avoiding the interference to the normal anti-reflux mechanism of the human body. The silk thread has small volume and can reduce the probability of bacterial colonization, and the probability of urinary infection is reduced by utilizing the self peristalsis of the ureter. The ureteral stent in the bladder segment has small volume and softness, and reduces bladder irritation symptoms. The tolerance of the ureteral indwelling patient is improved, and the ureteral indwelling patient is suitable for the application after the operation of the stricture of the connecting part of the renal pelvis and the ureter and the stricture of the upper ureter, and particularly the patient needs to be indwelled for a long time.
The foregoing is merely a preferred embodiment of the present patent, and it should be noted that modifications and substitutions will now occur to those skilled in the art without departing from the technical principles of the present patent, and such modifications and substitutions should also be considered to be within the scope of the present patent.
Claims (3)
1. The utility model provides an anti ureteral stent that backflows of part rapid dissolution formula, includes the support pipe body, the support pipe body divide into the kidney bengal section body, ureter upper segment body, ureter hypomere body, ureter bladder wall section body and the bladder section body of body coupling from last down in proper order, its characterized in that: the kidney-Monte-section tube body and the ureter upper-section tube body are flexible hollow catheters; the flexible hollow conduit is provided with a plurality of through holes; the ureter lower section tube body, the ureter bladder wall section tube body and the bladder section tube body are dissolvable tube bodies; a double-stranded filament wire is penetrated in the dissolvable tube body; the upper ends of the bifilar filament wires are connected with the ureter upper section tube body, the lower parts of the bifilar filament wires are converged into single-strand filament wires, and the lower ends of the bifilar filament wires are connected with a silica gel ring positioned in the bladder section tube body; the kidney-Monte-segment tube body and the ureter bladder wall segment tube body are curled into circles in opposite directions, the length of the upper section of the ureter is 6-8cm, the length of the double-strand fine wire is 2cm, and the total length of the double-strand wire and the single-strand wire is 18-20cm; the upper ends of the bifilar filament wires are wound into a circular ring shape and are connected to two sides of the lower end of the upper tube body of the ureter.
2. The partially rapid dissolve anti-reflux ureteral stent according to claim 1, characterized in that: the soluble tube body is made of soluble plant gelatin materials.
3. The partially rapid dissolve anti-reflux ureteral stent according to claim 1, characterized in that: the shape of the silica gel ring is elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832868.6A CN108785825B (en) | 2018-07-26 | 2018-07-26 | Part quick dissolving type anti-reflux ureteral stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832868.6A CN108785825B (en) | 2018-07-26 | 2018-07-26 | Part quick dissolving type anti-reflux ureteral stent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108785825A CN108785825A (en) | 2018-11-13 |
| CN108785825B true CN108785825B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810832868.6A Active CN108785825B (en) | 2018-07-26 | 2018-07-26 | Part quick dissolving type anti-reflux ureteral stent |
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| Country | Link |
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| CN (1) | CN108785825B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318326B (en) * | 2021-05-08 | 2022-04-01 | 宁波市第一医院 | Anti-blocking support tube with vanishing film |
| CN115192280B (en) * | 2022-07-08 | 2024-05-17 | 哈尔滨工业大学 | Ureteral stent capable of preventing backflow |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019102A (en) * | 1987-12-10 | 1991-05-28 | Eberhard Hoene | Anti-refluxive internal ureteral stent with a dynamic hood-valve at the vesical end for prevention of urinary reflux into the upper urinary tract upon increase of vesical pressure |
| CN201752531U (en) * | 2010-08-25 | 2011-03-02 | 高宏飞 | Unidirectional drainage ureter stent |
| CN203447616U (en) * | 2013-09-09 | 2014-02-26 | 四川省医学科学院（四川省人民医院） | Backflow-resisting ureter support pipe |
| CN204158869U (en) * | 2014-01-15 | 2015-02-18 | 江苏省人民医院 | Double helical form anti-reflux support tube of ureter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6887215B2 (en) * | 2001-06-01 | 2005-05-03 | Boston Scientific Scimed, Inc. | Compressible ureteral stent for comfort |
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2018
- 2018-07-26 CN CN201810832868.6A patent/CN108785825B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019102A (en) * | 1987-12-10 | 1991-05-28 | Eberhard Hoene | Anti-refluxive internal ureteral stent with a dynamic hood-valve at the vesical end for prevention of urinary reflux into the upper urinary tract upon increase of vesical pressure |
| CN201752531U (en) * | 2010-08-25 | 2011-03-02 | 高宏飞 | Unidirectional drainage ureter stent |
| CN203447616U (en) * | 2013-09-09 | 2014-02-26 | 四川省医学科学院（四川省人民医院） | Backflow-resisting ureter support pipe |
| CN204158869U (en) * | 2014-01-15 | 2015-02-18 | 江苏省人民医院 | Double helical form anti-reflux support tube of ureter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108785825A (en) | 2018-11-13 |
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