CN110743090A - Medical ureteral stent and using method thereof - Google Patents
Medical ureteral stent and using method thereof Download PDFInfo
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- CN110743090A CN110743090A CN201911230856.7A CN201911230856A CN110743090A CN 110743090 A CN110743090 A CN 110743090A CN 201911230856 A CN201911230856 A CN 201911230856A CN 110743090 A CN110743090 A CN 110743090A
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- 238000000034 method Methods 0.000 title claims description 13
- 230000007704 transition Effects 0.000 claims abstract description 3
- 210000000244 kidney pelvis Anatomy 0.000 claims description 22
- 210000000626 ureter Anatomy 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 210000003734 kidney Anatomy 0.000 description 18
- 230000036244 malformation Effects 0.000 description 5
- 230000003872 anastomosis Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000000306 recurrent effect Effects 0.000 description 3
- 206010010356 Congenital anomaly Diseases 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000002485 urinary effect Effects 0.000 description 2
- 206010051268 Anastomotic stenosis Diseases 0.000 description 1
- 206010013613 Double ureter Diseases 0.000 description 1
- 206010020524 Hydronephrosis Diseases 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000011337 individualized treatment Methods 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 206010038433 renal dysplasia Diseases 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
-
- 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
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
- A61M2027/004—Implant devices for drainage of body fluids from one part of the body to another with at least a part of the circuit outside the body
Abstract
The invention discloses a medical ureteral stent which comprises a first double J tube and a second double J tube, wherein a guide hole is formed in the upper portion of the outer wall of the first double J tube, a diaphragm which divides the inner cavity of the first double J tube into two independent drainage cavities extends downwards in the first double J tube and is positioned at the guide hole, an arc guide film which is in smooth transition with the guide hole extends from one end, close to the guide hole, of the diaphragm, one end of the second double J tube is inserted into the drainage cavity, penetrates through the guide hole and extends to the outer side, and the other end of the second double J tube extends out of the outer side of the first double J tube.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a medical ureteral stent and a using method thereof.
Background
The repeated kidney is a common congenital malformation of the urinary system of children, the incidence rate of the recurrent kidney is reported to be about 0.8%, the form of the recurrent kidney is various, and the renal function changes greatly, so that the recurrent kidney infant should make an individualized treatment scheme, and is also one of the relatively intractable congenital malformations faced by the urinary surgeons of children.
Repeat renal malformations are varying degrees of renal dysplasia and its expansion of the renal pelvis ureters, with occurrence in the upper half of the kidney being most common. The physician of such children usually adopts the upper half of the kidney and the resection of the collecting system thereof to treat the disease. There have been recent reports of treatment of suprarenal hydronephrosis with ureterectasis repeating renal teratogenesis with ureteral side anastomosis. In the early part of the last century, Foley first reported the application of ureteral end-to-side anastomosis to treat repeat renal malformations, and foreign scholars have been applying ureteral end-to-side anastomosis to treat complete repeat renal malformations with the progress of surgical techniques and the growing awareness of the surgical procedures. The double-ureter tube is Y-shaped after the ureter end side anastomosis operation, the ureter bracket used in the prior art is a retention double J tube, and most of the retention double J tubes are placed into a normal renal pelvis at one end and a bladder at the other end; it is also known to place one end of a double J-tube into the abnormal renal pelvis and the other end into the bladder. The two stents can only drain the upper half kidney or the lower half kidney, and complications such as narrow anastomotic stoma or unsmooth normal half kidney drainage and the like often occur.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides the medical ureteral stent which can drain the upper half renal pelvis and the lower half renal pelvis and avoids complications such as anastomotic stenosis or unsmooth normal half renal drainage and the like and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a medical ureteral stent, includes first pair J pipe and second pair J pipe, just is located upper portion at first pair J tub of outer wall and has seted up the bullport, just be located the diaphragm that the downthehole downwardly extending of bullport has the first pair J intraductal chamber of dividing into two independent drainage chambeies at first pair J intraductal, the one end that is close to the bullport at the diaphragm extends has the circular arc direction membrane with the smooth transition of bullport, the two J pipe one end of second is inserted and is passed the bullport by the drainage chamber and stretch out to the outside, the other end stretches out first pair J outside of tubes.
The medical ureteral stent can form a Y-shaped drainage form in the using process, can simultaneously connect the upper half kidney and the lower half kidney into a drainage tube, and simultaneously forms a stent at an operation anastomotic opening to support the anastomotic opening, so that complications such as unsmooth drainage and the like caused by narrow anastomotic opening are avoided, normal drainage can be ensured, the medical ureteral stent is favorable for the recovery of a patient, and the medical ureteral stent is scientific and reasonable in design and simple in operation.
According to the medical ureteral stent, the two ends of the first double-J tube and the second double-J tube in the length direction are both in a spiral shape or an arc shape, and the spiral shape or the arc shape can ensure that one end of the double-J tube is kept in the bladder or in the upper half renal pelvis and the lower half renal pelvis, so that random movement is avoided.
Aforementioned medical ureteral stent, be equipped with a plurality of drainage holes at first two J pipe and the two J pipe length direction's of second both ends, and be equipped with at first two J pipe lower extreme and be used for instructing with the communicating circular arc breach of bullport, it is unobstructed to set up a plurality of drainage holes and can guarantee the drainage, avoid blocking, set up the circular arc breach, can play the suggestion effect, one side that has the circular arc breach is the two J pipe male passageway of second promptly, avoid the doctor to wear the mistake when wearing the seal wire, and the work efficiency is improved, and the time is saved.
The medical ureteral stent is characterized in that the inflatable air bag positioned on the outer side of the first double-J tube is arranged at the upper end of the second double-J tube and close to the guide hole, the air inlet tube of the inflatable air bag extends to the outer side of the second double-J tube along the outer wall or the inner wall of the second double-J tube, the air inlet of the air inlet tube is provided with the sealing plug, the inflatable air bag is arranged, a fixing effect can be achieved, the back and forth movement of the inflatable air bag in a ureteral is avoided, the outer diameter of the first double-J tube can be increased, the problem that the outer diameter of the first double-J tube is small.
According to the medical ureteral stent, the green marks are arranged on the outer wall of the first double-J tube and located at the position corresponding to the guide hole, so that a doctor can find the position of the guide hole and the anastomotic stoma quickly by moving the first double-J tube, and the working efficiency is improved.
A method of using a medical ureteral stent, comprising the steps of:
the method comprises the following steps: a doctor cuts off the upper half renal ureter, then longitudinally cuts the lower half renal ureter to form an anastomotic stoma to be sutured with the upper half renal ureter, and stops when the anastomotic stoma is sutured to two thirds;
step two: firstly, a guide wire enters a bladder from the outside of the body through a cystoscope, then is inserted into the lower renal pelvis from the lower renal ureter opening, then one end of a first double J tube is inserted into the lower renal pelvis from the outside of the body along the guide wire, meanwhile, a guide hole corresponds to the position of an anastomotic stoma, the other end of the first double J tube is left outside the body, and then the guide wire is pulled out;
step three: then, paying attention to the position of the arc notch on the first double J tube, inserting a guide wire, wherein the guide wire extends into the guide hole from the lower end of the first double J tube and extends out of the guide hole, meanwhile, observing by utilizing the anastomotic gap, the guide wire extends into the upper half renal pelvis, then, penetrating one end of the second double J tube into the upper half renal pelvis along the guide wire and extends into the upper half renal pelvis, and meanwhile, observing by utilizing the anastomotic gap, moving an inflatable air bag into the upper half renal ureter, wherein the other end of the second double J tube extends out of the lower end of the first double J tube;
step four: then, the doctor continues to suture the remaining one third of the surgical anastomotic stoma and then inflates the air bag; a certain amount of gas is injected into the gas inlet and sealed by a sealing plug, then the first double J tube and the second double J tube in vitro are pushed into the bladder along the guide wire by using an operating forceps, and then the guide wire is removed;
step five: after 1-2 months of operation, the lower ends of the first double J tube and the second double J tube in the bladder are moved to the outside of the body by using an operating forceps, then a sealing plug is opened, the gas in the inflatable air bag is released, then the second double J tube is pulled out, and then the first double J tube is pulled out;
step five: after the surgical anastomotic stoma is completely healed, the first double J tube and the second double J tube in the bladder are moved to the outside of the body by using surgical forceps, then the sealing plug is opened, the gas in the inflatable air bag is released, then the second double J tube is pulled out, and then the first double J tube is pulled out.
Has the advantages that: compared with the prior art, the invention has the advantages that: a medical ureteral stent comprises a first double J tube and a second double J tube, can drain the upper half kidney and the lower half kidney, can effectively avoid complications such as narrow anastomotic stoma or unsmooth drainage of the normal half kidney, is provided with an inflatable air bag which can play a role in fixing, can avoid moving back and forth in a ureter, can also increase the outer diameter of the first double J tube, solves the problem of small outer diameter, is favorable for expanding the diameter of the ureter and avoiding the problems of blockage or unsmooth drainage after healing, can improve the working efficiency of a doctor operation, is a new method for treating repeated kidney in the field, solves the dilemma that only one of the upper half kidney or the lower half kidney can be selected to be inserted into the double J tube in the current operation process, can greatly improve the success rate of the operation, is simple to operate, has high success rate and small difficulty, opens up a new direction for treating repeated kidney in the technical field and brings good news to patients.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged partial schematic view of A of FIG. 1;
FIG. 3 is an enlarged partial schematic view of B of FIG. 1;
FIG. 4 is a schematic structural view of a first double J-tube;
FIG. 5 is an enlarged partial schematic view of C in FIG. 4;
fig. 6 is a schematic structural diagram of the present invention.
Description of reference numerals: 1-a first double J tube, 2-a second double J tube, 3-a guide hole, 4-a diaphragm, 5-an inflatable air bag, 6-a sealing plug, 7-an arc guide film, 8-a drainage hole, 9-an arc notch, 10-a mark and 11-an air bag inlet pipe.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings:
as shown in the attached drawings of the specification, the medical ureteral stent comprises a first double-J tube 1 and a second double-J tube 2, wherein a guide hole 3 is formed in the outer wall of the first double-J tube and is positioned at the upper part of the first double-J tube, a diaphragm 4 which divides the inner cavity of the first double-J tube 1 into two independent drainage cavities extends downwards in the first double-J tube 1 and is positioned at the guide hole 3, an arc guide film 7 which is smoothly transited with the guide hole 3 extends at one end, close to the guide hole 3, of the diaphragm 4, one end of the second double-J tube 2 is inserted into the drainage cavity, penetrates through the guide hole 3 and extends to the outside, and the other end;
first two J pipe 1 and the two J pipe 2 length direction's of second both ends are heliciform or circular-arcly, be equipped with a plurality of drainage holes 8 at first two J pipe 1 and the two J pipe 2 length direction's of second both ends, and be equipped with at first two J pipe 1 lower extreme and be used for instructing with the communicating circular arc breach 9 of bullport 3, it can guarantee that the drainage is unobstructed to set up a plurality of drainage holes, avoid blocking, set up the circular arc breach, can play the prompt action, one side that has the circular arc breach is the two J pipe male passageway of second promptly, avoid the doctor to wear the mistake when wearing the seal wire, and the work efficiency is improved, and the time is saved.
Be equipped with the air bag 5 that aerifys that is located the first double J pipe 1 outside in the position that the second double J pipe 2 upper end just is close to bullport 3, the air inlet pipe of air bag 5 extends to the second double J pipe 2 outside along the second double J pipe 2 inner wall, and intake pipe air inlet department is equipped with sealing plug 6, it aerifys the air bag to set up, can play fixed effect, avoid it at ureter round trip movement, can also increase first double J pipe external diameter simultaneously, solve the less problem of its external diameter, be favorable to enlarging ureter diameter, avoid blocking up or the not smooth problem of drainage after healing, be equipped with green mark 10 in the position that first double J pipe 1 outer wall just is located bullport 3 correspondence.
The embodiment also provides a using method of the medical ureteral stent, which comprises the following steps:
the method comprises the following steps: a doctor cuts off the upper half renal ureter, then longitudinally cuts the lower half renal ureter to form an anastomotic stoma to be sutured with the upper half renal ureter, and stops when the anastomotic stoma is sutured to two thirds;
step two: firstly, a guide wire enters a bladder from the outside of a body through a cystoscope, then is inserted into the lower renal pelvis from the lower renal ureter opening, then one end of a first double J tube 1 is inserted into the lower renal pelvis from the outside of the body along the guide wire, meanwhile, a guide hole 3 corresponds to the position of an anastomotic stoma, the other end of the first double J tube is left outside the body, and then the guide wire is pulled out;
step three: then, paying attention to the position of the arc notch 9 on the first double J tube 1, inserting a guide wire, wherein the guide wire extends into the guide hole 3 from the lower end of the first double J tube 1, and extends into the upper renal pelvis by observing through an anastomotic stoma gap, then penetrating one end of the second double J tube 2 into the upper renal pelvis along the guide wire and extending into the upper renal pelvis, and simultaneously moving the inflatable air bag 5 into the upper renal ureter by observing through the anastomotic stoma gap, wherein the other end of the second double J tube 2 extends out of the lower end of the first double J tube 1;
step four: then, the doctor continues to suture the remaining one third of the surgical anastomotic stoma, then a certain amount of gas is injected into the gas inlet of the gas inlet pipe 11 of the air bag and is sealed by the sealing plug 6, then the first double J pipe 1 and the second double J pipe 2 outside the body are pushed into the bladder along the guide wire by using the surgical forceps, and then the guide wire is removed;
step five: after the operation is performed for 1-2 months, the lower ends of the first double J tube 1 and the second double J tube 2 in the bladder are moved out of the body by the operating forceps in the operating room, then the sealing plug 6 is opened, the gas in the inflatable air bag 5 is discharged, then the second double J tube 2 is firstly pulled out, and then the first double J tube 1 is pulled out.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered by the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A medical ureteral stent, which is characterized in that: including first two J pipe (1) and second two J pipe (2) first two J pipe outer wall just is located upper portion and has seted up pilot hole (3) first two J pipe (1) is inside and be located pilot hole (3) department downwardly extending has diaphragm (4) that divide into two independent drainage chambeies with first two J pipe (1) inner chamber diaphragm (4) are close to the one end extension of pilot hole (3) have with circular arc direction membrane (7) of pilot hole (3) smooth transition, second two J pipe (2) one end is inserted and is passed pilot hole (3) by the drainage chamber and stretch to the outside, and the other end stretches out first two J pipe (1) outside.
2. The medical ureteral stent according to claim 1, wherein: both ends of the first double-J pipe (1) and the second double-J pipe (2) in the length direction are in a spiral shape or an arc shape.
3. The medical ureteral stent according to claim 1, wherein: a plurality of drainage holes (8) are formed in the two ends of the first double-J pipe (1) and the second double-J pipe (2) in the length direction, and an arc notch (9) used for indicating communication with the guide hole (3) is formed in the lower end of the first double-J pipe (1).
4. The medical ureteral stent according to claim 1, wherein: an inflatable air bag (5) located on the outer side of the first double J pipe (1) is arranged at the upper end of the second double J pipe (2) and close to the guide hole (3), an air inlet pipe of the inflatable air bag (5) extends to the outer side of the second double J pipe (1) along the outer wall or the inner wall of the second double J pipe (2), and a sealing plug (6) is arranged at the air inlet of the air inlet pipe.
5. The medical ureteral stent according to claim 1, wherein: and a green mark (10) is arranged on the outer wall of the first double-J tube (1) and at a position corresponding to the guide hole (3).
6. The use method of the medical ureteral stent according to any of the claims 1 to 5, characterized by comprising the following steps:
the method comprises the following steps: a doctor cuts off the upper half renal ureter, then longitudinally cuts the lower half renal ureter to form an anastomotic stoma to be sutured with the upper half renal ureter, and stops when the anastomotic stoma is sutured to two thirds;
step two: firstly, a guide wire enters a bladder from the outside of the body through a cystoscope, then is inserted into the lower renal pelvis from the lower renal ureter opening, then one end of a first double J tube (1) is inserted into the lower renal pelvis from the outside of the body along the guide wire, meanwhile, a guide hole (3) corresponds to the position of an anastomotic stoma, the other end of the first double J tube is left outside the body, and then the guide wire is pulled out;
step three: then, paying attention to the position of an arc notch (9) on the first double J tube (1), inserting a guide wire, wherein the guide wire extends into the upper half renal pelvis from the lower end of the first double J tube (1) and extends out of the guide hole (3), observing by utilizing the clearance of an anastomotic opening, the guide wire extends into the upper half renal pelvis, then penetrating one end of the second double J tube (2) into the upper half renal pelvis along the guide wire, observing by utilizing the clearance of the anastomotic opening, moving the inflatable air bag (5) into the upper half renal ureter, and extending the other end of the second double J tube (2) out of the lower end of the first double J tube (1);
step four: then, the doctor continues to suture the remaining one third of the surgical anastomotic stoma and then applies the surgical anastomotic stoma to the inflatable air bag (5); a certain amount of gas is injected into the gas inlet and sealed by a sealing plug (6), then the first double J tube (1) and the second double J tube (2) outside the body are pushed into the bladder along the guide wire by using an operating forceps, and then the guide wire is removed;
step five: after the operation is carried out for 1-2 months, the lower ends of the first double J tube (1) and the second double J tube (2) in the bladder are moved out of the body by using an operating forceps, then the sealing plug (6) is opened, the gas in the inflatable air bag (5) is released, then the second double J tube (2) is firstly pulled out, and then the first double J tube (1) is pulled out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911230856.7A CN110743090A (en) | 2019-12-05 | 2019-12-05 | Medical ureteral stent and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911230856.7A CN110743090A (en) | 2019-12-05 | 2019-12-05 | Medical ureteral stent and using method thereof |
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| CN110743090A true CN110743090A (en) | 2020-02-04 |
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| CN201911230856.7A Pending CN110743090A (en) | 2019-12-05 | 2019-12-05 | Medical ureteral stent and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111494778A (en) * | 2020-04-23 | 2020-08-07 | 深圳市儿童医院 | Ureteral stent tube capable of developing |
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|---|---|---|---|---|
| US20020188246A1 (en) * | 2001-06-12 | 2002-12-12 | Hayner George M. | Combination ureteral infusion catheter/drainage stent |
| CN202459749U (en) * | 2012-02-15 | 2012-10-03 | 山东省千佛山医院 | Ureter supporting tube for malformations of double-renal pelvis double-ureter |
| CN204158867U (en) * | 2014-05-19 | 2015-02-18 | 重庆医科大学附属儿童医院 | For the postoperative drain stay pipe of renal pelvis ureters |
| CN108136163A (en) * | 2015-07-20 | 2018-06-08 | 斯卓特凯系统有限责任公司 | Ureter and bladder catheter and negative pressure is introduced to increase the method for renal perfusion |
| US20180193618A1 (en) * | 2015-07-20 | 2018-07-12 | Strataca Systems, LLC | Systems, Kits and Methods for Inducing Negative Pressure to Increase Renal Function |
-
2019
- 2019-12-05 CN CN201911230856.7A patent/CN110743090A/en active Pending
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 |
| CN202459749U (en) * | 2012-02-15 | 2012-10-03 | 山东省千佛山医院 | Ureter supporting tube for malformations of double-renal pelvis double-ureter |
| CN204158867U (en) * | 2014-05-19 | 2015-02-18 | 重庆医科大学附属儿童医院 | For the postoperative drain stay pipe of renal pelvis ureters |
| CN108136163A (en) * | 2015-07-20 | 2018-06-08 | 斯卓特凯系统有限责任公司 | Ureter and bladder catheter and negative pressure is introduced to increase the method for renal perfusion |
| US20180193618A1 (en) * | 2015-07-20 | 2018-07-12 | Strataca Systems, LLC | Systems, Kits and Methods for Inducing Negative Pressure to Increase Renal Function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111494778A (en) * | 2020-04-23 | 2020-08-07 | 深圳市儿童医院 | Ureteral stent tube capable of developing |
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Application publication date: 20200204 |