CN108785825A - The rapid-dissoved anti-reflux ureter bracket in part - Google Patents

The rapid-dissoved anti-reflux ureter bracket in part Download PDF

Info

Publication number
CN108785825A
CN108785825A CN201810832868.6A CN201810832868A CN108785825A CN 108785825 A CN108785825 A CN 108785825A CN 201810832868 A CN201810832868 A CN 201810832868A CN 108785825 A CN108785825 A CN 108785825A
Authority
CN
China
Prior art keywords
tube body
silk thread
ureteral
bifilar
thin silk
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
Application number
CN201810832868.6A
Other languages
Chinese (zh)
Other versions
CN108785825B (en
Inventor
陈友根
夏庆华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Provincial Hospital
Original Assignee
Shandong Provincial Hospital
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Provincial Hospital filed Critical Shandong Provincial Hospital
Priority to CN201810832868.6A priority Critical patent/CN108785825B/en
Publication of CN108785825A publication Critical patent/CN108785825A/en
Application granted granted Critical
Publication of CN108785825B publication Critical patent/CN108785825B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0043Catheters; Hollow probes characterised by structural features
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09191Guide 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

A kind of rapid-dissoved anti-reflux ureter bracket in part of the present invention, including holder tube body, holder tube body is divided into kidney Meng's section tube body of integrally connected from top to bottom, proximal ureteral tube body, Distal Ureteral tube body, ureterovesical junction tube body and bladder section tube body, Distal Ureteral tube body, ureterovesical junction tube body and bladder section tube body are that can dissolve tube body, it can dissolve in tube body and be installed with bifilar thin silk thread, bifilar thin silk thread upper end is connect with proximal ureteral tube body, bifilar thin silk thread lower part merges into the thin silk thread of sub-thread, and lower end is connected with the falope ring in bladder section tube body.It solves double J pipe reflux problem, particularly with Preserving time ureter bracket patient is needed, upper urinary tract infection occurrence probability can be reduced, uronephrosis caused by avoiding ureter from backflowing aggravates, and mitigates patient suffering, improves the quality of living.

Description

The rapid-dissoved anti-reflux ureter bracket in part
Technical field
The present invention relates to a kind of rapid-dissoved anti-reflux ureter brackets in part.
Background technology
Ureter rack tube is extensive in urological applications of compounds, and it is broken to be suitable for kidney, ureter stone operation and external knock wave Shi Qian;The external compressing of ureter need to release the patient of obstruction;Suitable for the treatments such as after kidney transplant, ureterostenosis dilatation, portion Patient is divided to need Preserving time.Ureter bracket both-side ends crimp " pigtail-shaped " in pairs at present, as shown in Figure 1, last before and after holder " J " shape is held into, be otherwise known as double ‘J' tube.For end direction opposite curvature at circle shape, one end is located at kidney Meng, and the other end is located at wing Guang.Rack body is placed in ureteral lumen.Drainage of urine can be played after implantation ureter, prevent ureterostenosis and adhesion blocking etc. Effect.Ureter bracket is mostly made of medical macromolecular materials such as silicon rubber or polyurethane at present, and Partial tumors patient needs long-term Place is mostly that metal is made.The application of ureter rack tube improves success rate of operation, but still can after indwelling ureter rack tube Cause some complication, common are:With the relevant symptom of reflux, pain in the back when such as pain in the back, urination, urine Frequently, the irritations sign of bladder such as urgent urination and odynuria, urinary infection, ureter rack tube calculus etc..Wherein, irritation sign of bladder and Reflux is current letter major issue to be solved, for needing the patient of Preserving time double J pipe even more tight Further increasing for therapeutic effect is limited again, and can lead to severe complication.
The reason of backflowing essentially consist in ureter rack tube be it is a kind of can be defeated after indwelling tube of double-J with the conduit of double take-off The anti-reflux mechanism of urinary catheter the bladder wall inner segment seriously weakens or disappears, when intravesical pressure is more than renal plevis and intra-ureteral pressure When power, urine in bladder will inevitably occur and backflow to ureter and renal plevis.In addition, after indwelling ureter bracket, urine Liquid is constantly drained, and renal pelvis ureters circular cone loses full stimulation, is caused ureter rhythmicity to be wriggled and is obviously weakened or disappear, increases Add urine reflux rate probability and severity.
Reflux influences therapeutic effect, especially needs long-term layer.Backflowing causes renal plevis pressure to increase Add, renal papilla and cortex renis atrophy can be caused for a long time by backflowing, and damage renal function.Foreign matter resides in urinary system for a long time, and bacterium is easily fixed It plants and causes urinary infection in ureter bracket;Ureteral peristalsis decrease makes urinary system self-cleaning ability decline, urinary tract in increase Infect probability.Prolonged and repeated Renal pelvic pressure power increases and infection destructible kidney, and it is thinning to even result in cortex renis, greatly influences Therapeutic effect.But it there is no effective solution at present, it is suggest that patient drinks more water and frequently urinates more, so that bladder is in inanition as possible State, avoids bladder excessive full and abdominal pressure excessively increases;Antibiotic, some patientss is applied to be forced to replace urine output when infecting Pipe holder.But these methods can not fundamentally solve bladder irritation and reflux and related complication.
Several anti-reflux ureter brackets being currently known design:One-way valve, pipe peripheral hardware anti-reflux valve are set in pipe Film, end set valve etc., and ureterovesical junction is designed as draught line by some, and urine output pipeline section still uses traditional design, though Short anti-reflux mechanism in tubal bladder wall is utilized, but still can seriously inhibit ureteral peristalsis, it is difficult to fully drainage.It is external Report has similar product MiniJFil, substitutes part ureter bracket with silk thread, but because of silk thread soft texture, laparoscopic renal It is difficult to place from renal plevis side in broad-mouthed receptacle for holding liquid plasty, lower end ureter structure, which is embedded in rapidly dissolvable ureter bracket, to be solved This problem.
Invention content
To solve the above technical deficiency, the present invention provides a kind of anti-reflux support tube of ureter, solve existing defeated Reflux problem existing for urinary catheter stand tube.
The present invention is achieved by the following measures:
A kind of rapid-dissoved anti-reflux ureter bracket in part of the present invention, including holder tube body, the holder tube body It is divided into kidney Meng's section tube body, proximal ureteral tube body, Distal Ureteral tube body, the tubal bladder of integrally connected from top to bottom Wall section tube body and bladder section tube body, the kidney Meng section tube body, proximal ureteral tube body are flexible hollow conduit, the flexible hollow Several through-holes are provided on conduit, the Distal Ureteral tube body, ureterovesical junction tube body and bladder section tube body are dissolvable Tube body, bifilar thin silk thread is installed in the dissolvable tube body, and the bifilar thin silk thread upper end connects with proximal ureteral tube body It connects, bifilar thin silk thread lower part merges into the thin silk thread of sub-thread, and lower end is connected with the falope ring in bladder section tube body.
Above-mentioned kidney Meng section tube body and ureterovesical junction tube body are curled into circle in the opposite direction, on the ureter Segment length is 6-8cm, the bifilar filament line length 2cm, and the silk thread total length of bifilar silk thread and sub-thread is 18-20cm.
Above-mentioned bifilar thin silk thread upper end is coiled into annular shape and is connected to proximal ureteral bottom of the pipe both sides.
Above-mentioned dissolvable tube body is using soluble plant glutin material.
The shape of above-mentioned falope ring is ellipse.
The beneficial effects of the invention are as follows:The present invention solves double J pipe reflux problem, does not influence the forming of laparoscope renal plevis detachment Ureter bracket is placed in art, is reduced because ureter places the inhibition to ureteral peristalsis, while alleviating bladder section double J pipe Irritation sign of bladder.It can be used for ureter bracket indwelling in renal plevis detachment plasty, can avoid in bladder urine to ureter, kidney Broad-mouthed receptacle for holding liquid backflows, and particularly with Preserving time ureter bracket patient is needed, can reduce upper urinary tract infection occurrence probability, ureter is avoided to return Uronephrosis caused by stream aggravates, and mitigates patient suffering, improves the quality of living.
Description of the drawings
Fig. 1 is current existing ureter bracket structural schematic diagram.
Fig. 2 is the structural schematic diagram of the present invention.
Fig. 3 is that can dissolve the dissolved structural schematic diagram of tube body in the present invention.
Fig. 4 is the structural schematic diagram that thin silk thread upper end bifilar in the present invention is connect with proximal ureteral bottom of the pipe.
Wherein:1 kidney Meng's section tube body, 2 proximal ureteral tube bodies, 3 Distal Ureteral tube bodies, 4 ureterovesical junction tube bodies, 5 bladder section tube bodies, 6 through-holes, 7 thin silk threads, 8 falope rings.
Specific implementation mode
Further detailed description is done to the present invention below in conjunction with the accompanying drawings:
As shown in Fig. 2, a kind of rapid-dissoved anti-reflux ureter bracket in part of the present invention, including holder tube body, stand tube Ontology is divided into the kidney Meng section tube body 1 of integrally connected, proximal ureteral tube body 2, Distal Ureteral tube body 3, defeated from top to bottom Urinary catheter the bladder wall section tube body 4 and bladder section tube body 5, kidney Meng's section tube body 1, proximal ureteral tube body 2 are flexible hollow conduit, flexible Several through-holes 6 are provided on hollow conduit, Distal Ureteral tube body 3, ureterovesical junction tube body 4 and bladder section tube body 5 are can Tube body is dissolved, can dissolve and be installed with bifilar thin silk thread 7 in tube body, bifilar 7 upper end of thin silk thread connects with proximal ureteral tube body 2 It connects, bifilar 7 lower part of thin silk thread merges into the thin silk thread 7 of sub-thread, and lower end is connected with the silica gel in bladder section tube body 5 Ring 8.
Kidney Meng section tube body 1 and ureterovesical junction tube body 4 are curled into circle, proximal ureteral length in the opposite direction For 6-8cm, the silk thread total length of the bifilar 7 long 2cm of thin silk thread, bifilar silk thread and sub-thread are 18-20cm.Bifilar is thin 7 upper end of silk thread is coiled into annular shape and is connected to proximal ureteral bottom of the pipe both sides, as shown in Figure 4.Dissolvable tube body uses can The gelatin material of dissolubility.The shape of above-mentioned falope ring 8 is ellipse.
Its working principle is that:Method for posting is identical with common double J pipe, and being that seal wire guiding is lower places.By kidney Meng's section tube body 1 It is put into kidney Meng, then extends always along ureter, finally bladder section tube body 5 is put into bladder, wait for that ingredient is plant glutin Dissolvable tube body dissolving after, thin silk thread and falope ring 8 appear, as shown in Figure 3.The urine generated in kidney Meng is from through-hole 6 Into kidney Meng's section tube body 1, it then is drained to ureter by proximal ureteral tube body 2, thin silk thread does not influence ureter itself It wriggles, ureter itself, which is wriggled, forms " pump " sample swabbing effect, is conducive to the emptying of renal plevis and epimere ureter, urine passes through defeated Urinary catheter wriggling flows into bladder from top to bottom.
7 long 2cm of bifilar thin silk thread, after merge into the silk thread 7 of sub-thread, to reduce the wriggling of centering Lower ureteral as far as possible It influences.After urine drainage to doubled strands position, it can be wriggled by ureter itself and flow into bladder.Ureterovesical junction pipe Body is sub-thread silk thread, and thin silk thread is small on the influence of the anti-reflux mechanism of tubal bladder wall inner segment, remains human body to greatest extent Itself anti-reflux mechanism.
Urine passes through downwards thin silk thread 7, and bladder is flowed by tubal bladder wall inner segment.Due to being adopted among holder tube body With thin silk thread 7, holder tube body cannot carry out double take-off, and urine can flow into bladder by ureteral peristalsis, even if working as wing When pressure in Guang is more than renal plevis and intra-ureteral pressure, as long as pressure difference is no more than human body itself anti-reflux, 7 nothing of thin silk thread Method carries out upward water conservancy diversion urine, therefore can be reduced or avoided and urine backflowing to ureter and renal plevis in bladder occurs.
Proximal ureteral tube body 2 end uses round blunt slide designs, rubs with mucous membrane of ureter when pulling out double J pipe to reduce It wipes;It is designed using bifilar thin silk thread 7 closing on proximal ureteral tube body, so as to pull out tube wall both sides uniform force when double J pipe, is made Tube body keeps with ureter major diameter usually, being reduced or avoided and increasing friction because tube wall tilts, damage ureter is reduced or avoided Mucous membrane.
Thin silk thread 7 can also reduce the stimulation to mucous membrane of ureter, be generated to reduce inflammatory polyp;Falope ring 8 can prevent Ureter is slid into, double J pipe shift in position is avoided, because the more traditional double J pipe bladder section of 8 volume of falope ring is obviously reduced, and is softwood Matter, can substantially reduced irritation sign of bladder, inflammatory polyp is reduced or avoided in bladder and generates.
In conclusion anti-reflux machine of the present invention using the ureteral peristalsis and tubal bladder wall inner segment of human body itself System, " pump " the sample swabbing effect formed using ureteral peristalsis can be such that narrow section fully drains and to people The interference of the normal anti-reflux mechanism of body.Silk thread is small and can reduce bacteria planting probability, is dropped using itself wriggling for ureter Low urinary infection occurrence probability.Bladder section ureter bracket is small and soft, reduces irritation sign of bladder.It increases defeated The tolerance of urinary catheter indwelling patient is applied after being suitble to renal plevis-urine output pipe jointing part narrow and Upper ureteral stricture dilatation, special It is not to need Preserving time patient.
The above is only the preferred embodiment of this patent, it is noted that for the ordinary skill people of the art For member, under the premise of not departing from the art of this patent principle, several improvement and replacement can also be made, these improve and replace Also it should be regarded as the protection domain of this patent.

Claims (5)

1. a kind of rapid-dissoved anti-reflux ureter bracket in part, including holder tube body, the holder tube body is from upper past Under be divided into kidney Meng section tube body, proximal ureteral tube body, Distal Ureteral tube body, the ureterovesical junction pipe of integrally connected Body and bladder section tube body, it is characterised in that:The kidney Meng section tube body, proximal ureteral tube body are flexible hollow conduit, described soft Several through-holes are provided on property hollow conduit, the Distal Ureteral tube body, ureterovesical junction tube body and bladder section tube body are Tube body is can dissolve, bifilar thin silk thread, bifilar the thin silk thread upper end and proximal ureteral are installed in the dissolvable tube body Tube body connects, and bifilar thin silk thread lower part merges into the thin silk thread of sub-thread, and lower end is connected in bladder section tube body Falope ring.
2. the rapid-dissoved anti-reflux ureter bracket in part according to claim 1, it is characterised in that:The kidney Meng section pipe Body and ureterovesical junction tube body are curled into circle in the opposite direction, and the proximal ureteral length is 6-8cm, described double The silk thread total length of the filament line length 2cm of stock, bifilar silk thread and sub-thread is 18-20cm.
3. the rapid-dissoved anti-reflux ureter bracket in part according to claim 1, it is characterised in that:It is described bifilar thin Silk thread upper end is coiled into annular shape and is connected to proximal ureteral bottom of the pipe both sides.
4. the rapid-dissoved anti-reflux ureter bracket in part according to claim 1, it is characterised in that:The dissolvable pipe Body is using soluble plant glutin material.
5. the rapid-dissoved anti-reflux ureter bracket in part according to claim 1, it is characterised in that:The falope ring Shape is ellipse.
CN201810832868.6A 2018-07-26 2018-07-26 Part quick dissolving type anti-reflux ureteral stent Active CN108785825B (en)

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 true CN108785825A (en) 2018-11-13
CN108785825B CN108785825B (en) 2024-02-09

Family

ID=64078289

Family Applications (1)

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

Country Status (1)

Country Link
CN (1) CN108785825B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113318326A (en) * 2021-05-08 2021-08-31 宁波市第一医院 Anti-blocking support tube with vanishing film
CN115192280A (en) * 2022-07-08 2022-10-18 哈尔滨工业大学 Anti-backflow ureteral stent
CN117503421A (en) * 2023-11-22 2024-02-06 香港大学深圳医院 Ureteral stent convenient to get and put
CN117503421B (en) * 2023-11-22 2024-07-30 香港大学深圳医院 Ureteral stent convenient to get and put

Citations (5)

* Cited by examiner, † Cited by third party
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
US20020183852A1 (en) * 2001-06-01 2002-12-05 Mcweeney John O. Compressible ureteral stent for comfort
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
US20020183852A1 (en) * 2001-06-01 2002-12-05 Mcweeney John O. Compressible ureteral stent for comfort
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113318326A (en) * 2021-05-08 2021-08-31 宁波市第一医院 Anti-blocking support tube with vanishing film
CN115192280A (en) * 2022-07-08 2022-10-18 哈尔滨工业大学 Anti-backflow ureteral stent
CN115192280B (en) * 2022-07-08 2024-05-17 哈尔滨工业大学 Ureteral stent capable of preventing backflow
CN117503421A (en) * 2023-11-22 2024-02-06 香港大学深圳医院 Ureteral stent convenient to get and put
CN117503421B (en) * 2023-11-22 2024-07-30 香港大学深圳医院 Ureteral stent convenient to get and put

Also Published As

Publication number Publication date
CN108785825B (en) 2024-02-09

Similar Documents

Publication Publication Date Title
US8287519B2 (en) Self-cleansing bladder drainage catheter
CN108785825A (en) The rapid-dissoved anti-reflux ureter bracket in part
CN203447616U (en) Backflow-resisting ureter support pipe
CN209519215U (en) The rapid-dissoved anti-reflux ureter bracket in part
CN104758097B (en) A kind of anti-reflux type ureter bracket
CN102363060B (en) Ureteral stent
EP2470249B1 (en) Suprapubic urethral catheters
CN112426616A (en) Special ureteral stent for kidney transplantation
CN108066883A (en) A kind of catheter
CN201752531U (en) Unidirectional drainage ureter stent
CN109602968A (en) A kind of self-loopa bladder irrigator
CN111759553A (en) Novel anti-reflux ureteral stent
CN204428605U (en) Novel urethral catheter
CN209236972U (en) A kind of disposable urine output tube passage maintenance device
CN209108220U (en) A kind of end is dissolvable to arrange double J pipe with line certainly
CN209060312U (en) A kind of catheter
CN213430810U (en) Ureteral stent component
CN202446629U (en) Ureteral stent tube
CN111388838A (en) Ureteral stent
CN209884996U (en) Urinary bladder irrigation catheter
CN206151636U (en) Ureter inner support pipe with anti palirrhea function
CN212996899U (en) Novel anti-reflux ureteral stent
CN215505066U (en) Novel anti-reflux ureter
CN212369408U (en) Ureteral stent
CN203954439U (en) A kind of bladder U-shaped dilating drainage tube

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant