107 results about "Into ureter" patented technology

There is provided a method for controlling a flow of urine in the urinary passageway of a patient's urethra, ureter, renal pelvis or bladder. The method comprises gently constricting (i.e., without substantially hampering the blood circulation in the urinary tissue wall) at least one portion of the urinary tissue wall to influence the flow in the urinary passageway, and stimulating the constricted wall portion to cause contraction of the wall portion to further influence the flow in the urinary passageway. The method can be used for restricting or stopping the flow in the urinary passageway of a urinary incontinent patient, or for actively moving the urine in the urinary passageway, with a low risk of injuring the urethra, ureter, renal pelvis or bladder.

A uterine manipulator designed to perform a total laparoscopic hysterectomy in an easy, safe and effective manner, which simplifies the surgical procedure by improving the anatomical angle of access to round ligaments, salpinges, utero-ovarian ligaments, broad ligaments, uterine vessels, anterior endopelvic fascia, lateral endopelvic fascia, but very especially to the posterior endopelvic fascia due to innovative design of said manipulator that allows the anteversoflexion movement of uterus. In addition, the invention moves ureters away from the risk zone when tying the uterine vessels, and protects and prevents the mobilization of the bladder and rectum, as a result of improving the angle of access. Additionally, the manipulator has the advantage of being easily manageable because of the anatomical design of its handle and its strong design allows for total hysterectomy uterus, still too big and heavy uteri.

A stone removal system comprises a sweeping structure and a dilating structure. The sweeping structure is deployed on a kidney side of a urinary stone in the ureter. Should the sweeping structure be unable to remove the kidney stone, the dilating structure is placed on the bladder side of the kidney stone and used to dilate the lumen of the ureter. The dilated lumen allows the sweeping structure to more easily remove the kidney stone. Should the kidney stone still resist removal, a lithotripsy device may be introduced through the ureter and energy directed through openings in the dilation structure to fragment the stone.

The invention relates to a covered basket type ureteral calculus blockage extractor provided with a catheter and a guide wire. The far end of the guide wire is provided with a basket wire made of shape memory and super elastic material, the far end of the basket wire is gathered to form a basket, and the basket is fixed to a blocking film in a scoop shape in a pre-shaped manner; during usage, the basket wire is in a curved shape, and the blocking film is unfolded through the basket wire; during idle, the basket wire and the blocking film are both accommodated in the catheter. The covered basket type ureteral calculus blockage extractor can be placed in the ureter easily, is prevented from pushing calculus to move reversely towards kidneys and damaging the wall of the ureter and is capable of blocking the ureter completely, the calculus and calculus pieces are prevented from returning to the kidney through injected water effectively, the covered basket type ureteral calculus blockage extractor is not prone to deformation during calculus drawing and extraction, is prevented from friction with the wall of the ureter and is capable of extracting all calculus once, and the purpose of extracting calculus effectively is achieved.

A method for creating a tract for nephrostomy tube creation comprising the steps of providing a puncture wire having a tissue penetrating tip shielded in a sheath, the puncture wire slidable within the sheath and releasably lockingly engaged thereto, inserting the puncture wire and sheath in a first direction through a working channel of an ureteroscope to exit the channel of the ureteroscope, releasing the puncture wire from the sheath and advancing the puncture wire a first distance from the sheath while visualizing via the ureteroscope the position of the puncture wire, advancing the puncture wire and the sheath into a selected calyx and through a flank of a patient, removing the puncture wire from the sheath in a second direction different from the first direction and inserting a guidewire through the sheath.

The invention relates to an internal extracting device for calculus cavities of urinary systems. The internal extracting device comprises a guide tube and a guide wire. A net basket is arranged at a far end of the guide wire, a calculus extracting pocket is fixed onto the net basket and is in the shape of an elongated pocket by means of pre-plasticizing, an opening is formed in a surface of a near end of the calculus extracting pocket, and tiny holes are further formed in the calculus extracting pocket. The internal extracting device for the calculus cavities of the urinary systems has the advantages that large quantities of broken calculi, blood clots and pus clots can be extracted by the internal extracting device at one step, the internal extracting device is free of constraints of the inner diameters of the lumens of the ureters or the inner diameters of operation channels, broken calculus missing in calculus extracting procedures can be prevented, and the broken calculi can be effectively prevented from being poured into the kidneys by water current; injury to the walls of the ureters due to the broken calculi can be prevented, and accordingly the internal extracting device is safe and reliable.

A method for creating a tract for nephrostomy tube creation comprising the steps of providing a puncture wire having a tissue penetrating tip shielded in a sheath, the puncture wire slidable within the sheath and releasably lockingly engaged thereto, inserting the puncture wire and sheath in a first direction through a working channel of an ureteroscope to exit the channel of the ureteroscope, releasing the puncture wire from the sheath and advancing the puncture wire a first distance from the sheath while visualizing via the ureteroscope the position of the puncture wire, advancing the puncture wire and the sheath into a selected calyx and through a flank of a patient, removing the puncture wire from the sheath in a second direction different from the first direction and inserting a guidewire through the sheath.

The invention discloses a stone removing device for urinary system, which is composed of a pipe made of high molecular materials, wherein the two ends of the pipe are inwardly bent in opposite direction to obtain a circular shape like pig tail, the wall of the two ends of the pipe is opened with 3-5 side holes of diameter 0.1-0.8mm, and the middle section of the pipe is provided with 10-20 small pinch-and-swell form baskets that are formed by opening four openings on the surrounding wall of the pipe with equal intervals. The lower end of the pipe is provided with a ureter bladder marking point, the upper end of the pipe is provided with a kidney marking point, and the top of the pipe is in the shape of tapered tube with gradually decreased diameter. Because of the special small retractable pinch-and-swell form baskets, the stone removing success ratio is remarkably improved compared with the prior stone pinching baskets, and the detachment of pinched stone is avoided. The inventive pinch-and-swell structure takes good supporting effect to the ureter, so that the ureter may not be stopped by stones, and the urine in the kidney can smoothly reach bladder.

A transducer is used to send an ultrasound pulse toward a stone and to receive ultrasound reflections from the stone. The recorded time between a pulse that is reflected from the proximal surface and a pulse that is reflected either from the distal surface of the stone or from a surface supporting the stone is used to calculate the stone size. The size of the stone is a function of the time between the two pulses and the speed of sound through the stone (or through the surrounding fluid if the second pulse was reflected by the surface supporting the stone). This technique is equally applicable to measure the size of other in vivo objects, including soft tissue masses, cysts, uterine fibroids, tumors, and polyps.

The invention discloses a traditional Chinese medicine composition formula for treating calculosis, composed of desmodium, digua fig stem and leaf, lygodium japonicum, China fir, tuckahoe, corn silk, weeping willow and fringed pink. The pharmaceutical composition has the effects on clearing away heat, promoting diuresis, promoting blood circulation, relieving pain, removing calculus and inducing diuresis, can be used for treating different sizes of calculuses in hepatic ducts, parotid gland, lacrimal gland, bile ducts and gall bladder and urethral calculus in kidney, nephric ducts, bladder and the like, also can be used for treating calculus pain, retention of urine and other related complications, and is a relatively ideal clinical therapeutic medicament for calculosis. In addition, the medicament is not found having any toxic side effects and has certain preventive effects on all kinds of calculosis if a small dose of medicament is taken for a long time.

An orthotopic artificial bladder prosthesis includes an enclosure or bag or balloon and hollow elements (200; 300) for the forced connection of ureters and urethra to the bladder in the absence of sutures.

The proposed invention is a ureteral stent (2) comprising a kidney end part (200) and a bladder end part (210), the kidney end part (200) being tubular and curved, said stent (2) being characterized in that the bladder end part (210) has at least one thread, and in that the stent additionally comprises a tubular intermediate portion (220) extending between the kidney end part and the bladder end part, said portion having an external diameter decreasing towards the bladder end part, and the minimal external diameter of said portion (220), at the connection to the thread of the bladder end part (210), is substantially equal to the diameter of the thread, said portion having a length of between 0.5 cm and 12 cm.

The invention belongs to the field of medical artificial organs, and specifically relates to an animal-derived biological artificial bladder. The animal-derived biological artificial bladder is a medical artificial bladder that can be implanted in situ and consists of an artificial ureter, an artificial bladder body and an artificial urethra. The animal-derived biological artificial bladder is prepared by removing antigen-carrying cell components from original tissues after chemical modification of the animal bladder and retaining a framework for tissue regeneration. The animal-derived biological artificial bladder has better biocompatibility, and also has the same or similar structure as the extracellular matrix to perform cell adhesion, proliferation and differentiation. Thereby, the common problems such as infection, body rejection reaction, urinary calculus, renal function deterioration and the like that are brought to patients after total cystectomy are solved. In addition, the artificial bladder can sense the filling degree of the bladder, thus autonomously contracting and urinating without the aid of other external power devices.

The invention discloses a ureteral stent tube which comprises a self-expanding portion in a hollow circular tube shape and hollow holding portions arranged at two ends or one end of the self-expandingportion. The self-expanding portion and the holding portions at two ends or one end of the self-expanding portion are combined into an integral structure and communicate with each other. The self-expanding portion comprises a working portion and transition portions integrally formed with two ends or one end of the working portion. One end of each transition portion communicates with the working portion, and the other end of each transition portion communicates with the corresponding holding portion. The self-expanding portion comprises a supporting framework and a thin film covering the supporting framework. Each holding portion is used for being hung and held in a kidney and / or a bladder. The ureteral stent tube provided by the invention can be more firmly fixed in a ureter, and the working portion of the ureteral stent tube better and more firmly fits the ureter, so that the ureteral stent tube does not cause upward and / or downward displacement of a stent due to movement of a patient.

A patient wear with treatment-assist features has a neckline, two shoulder region, two sleeves and a body region. A two-way zipper is disposed at a center position from the neckline through the body region, each sleeve has a strip opening configured to provide access for an injection, an IV tube, or medical treatments. Each strip opening is provided with a plurality of first hook and loop fasteners. Each shoulder region has a first zipper extending from the shoulder region to the body region and is configured to accept tubes for chemotherapy or dialysis. The body region has a waist region opening respectively on both sides of the two-way zipper. The waist region opening is disposed at a position corresponding to a human waist area, provided with a second hook and loop fastener, and configured for a ureter or a colostomy tube.

The invention relates to a medicine composition for treating urocystitis. The medicine composition is characterized by consisting of collagen and a water carrier. The collagen composition solution disclosed by the invention is given in a perfusion manner, therefore, the medicine directionally reaches the surface of the infected cavity (mucosa) of the urinary bladder or patients suffering urocystitis, especially interstitial cystitis, can be used for treating related urinary bladders and is applicable to patents whose lining of the urinary bladder or urethra or lining of the ureter is corroded.

The present invention provides a degradable spherical artificial bladder, which is a medical in situ implantable degradable spherical artificial bladder lined with small intestinal submucosa. The artificial ureteral loop and the artificial urethral loop are reticular pipe structures, and the artificial bladder body is a reticulated spherical structure. The artificial urethral loop, the artificial ureteral loop, and the artificial bladder body are integrally formed, and the small intestinal submucosa is lined inside the three. The invention has a reasonable structural design and fully utilizes the advantages of natural-artificial composite materials. The mesh outer support plays a role of mechanical support in the early stage of implantation, facilitates the suture operation of the surgical port, and can maintain the structure of the urinary bladder for temporary urine storage. functions as well as facilitate fixation to pelvic tissues. The invention is applied in cystectomy operation to replace the resected diseased bladder, and finally form an organ similar to the autologous bladder.

The invention discloses a urethral sheath of an ureteroscope. The urethral sheath comprises an insertion part, a urethral sheath wall, a ureteroscope intubation tube, a compressible telescopic tube, an inflation module and a pressure measurement module; the insertion part is fixed at the front end of the urethra sheath wall; one end of the compressible telescopic tube is connected with the rear end of the urethra sheath wall, and the other end is connected with the ureteroscope intubation tube; the ureteroscope intubation tube is used for inserting a ureteroscope from the rear end of the wholeurethral sheath; a pressure measuring module for monitoring the pressure in the bladder is arranged on the insertion part; and the inflation module is arranged on the outer wall of the front end of the urethral sheath wall and used for flexibly fixing the urethral sheath after inflation expansion. The pressure measuring module can detect the pressure in the bladder, the urethral sheath can be prevented from slipping to injure the urethra through the inflation module, the success rate of an operation can be effectively increased, and the risk of serious surgical complications is reduced.

Provided is a pharmaceutical composition for use in a method of preventing or treating a urinary tract infection (UTI), chronic cystitis, overactive bladder, partial bladder obstruction or urethritis, said composition comprising one or more oligomeric tannins, selected from proanthocyanidins and / or hydrolysable tannins, where in said method said composition is administered intraurethrally, intravesically, intraureterally and / or intrarenally, as well as a pharmaceutical composition for use in a method of preventing or treating bladder cancer, where in said method said composition is administered intravesically, said composition comprising one or more oligomeric tannins, selected from proanthocyanidins and / or hydrolysable tannins, wherein said tannins are bound to an anti-cancer agent and / or liposomes containing an anti-cancer agent, together with compositions related thereto.

There is provided a method for controlling a flow of urine in the urinary passageway of a patient's urethra, ureter, renal pelvis or bladder. The method comprises gently constricting (i.e., without substantially hampering the blood circulation in the urinary tissue wall) at least one portion of the urinary tissue wall to influence the flow in the urinary passageway, and stimulating the constricted wall portion to cause contraction of the wall portion to further influence the flow in the urinary passageway. The method can be used for restricting or stopping the flow in the urinary passageway of a urinary incontinent patient, or for actively moving the urine in the urinary passageway, with a low risk of injuring the urethra, ureter, renal pelvis or bladder.

The invention relates to a renal ureter fistulization urine shunt monitoring system which comprises a fistulization tube, a detection tube and a liquid storage tube. One end of the fistulization tubeis used for being connected with a renal ureter, and the other end of the fistulization tube is provided with a first connecting part; the detection tube has a tubular cavity structure with openings in the two ends and is detachably connected with the fistulization tube. A flow monitoring device is arranged in the detection tube, comprises a pressure sensing module, a signal transmission module and a power supply module, and is used for monitoring the flow of liquid flowing through the detection tube; the liquid storage tube has a tubular cavity structure with openings in the two ends and is detachably connected with the detection tube, a liquid storage tank is arranged in the liquid storage tube, and the liquid storage tank can store liquid flowing out of the liquid storage tube. The renal ureter fistulization urine shunt monitoring system has the advantages that the urine volumes of the kidneys on the two sides are recorded respectively, the situation that the problem of the kidneyson the single side is covered is prevented, the function of storing latest urine for testing is achieved, and the stability and flexibility are high.

The invention relates to a medicament for treating urinary infection and lithiasis, which is prepared from the following medicinal materials in parts by weight: 1-5 parts of aspidopterys glabriuscula, 1-3 parts of wild reed cereal roots, 1-3 parts of conical celastrus orbiculatus, 1-3 parts of folium orthosiphoni and 1-2 parts of liquorice. The medicament is used for treating acute and chronic nephritis, pyelitis, urinary tract infection, renal calculi, ureter calculi, bladder calculi and the like; the medicament prepared into different preparations by applying the modern technique is applied in clinics to obtain an obvious therapeutic effect, and the research on the main pharmacodynamics proves that the medicament has no toxic or side reaction, safe and has reliable and obvious therapeutic effect, good development and application prospect and market competitiveness through clinical therapeutic effect observation and urgent toxin test.

The invention discloses a ureter ligation induced non-human primate animal renal fibrosis model building method and application. The specific technical scheme includes that an experimental monkey is anaesthetized by anesthetics, surgical anesthesia is maintained, the abdomen of the experimental monkey is cut apart along a medioventral line after disinfection, an abdominal cavity is opened, an operation field is exposed, a unilateral ureter at a unilateral renal lower edge is ligated twice by a surgical silk thread and completely blocked, another kidney is not ligated and serves as a self-body for comparison, a wound is stitched in a layered manner after a surgical incision is disinfected, renal fibrosis indexes are measured by biological samples at different time points after ligation, or a left kidney and a right kidney are taken down and fixed in neutral buffered formalin, and formalin fixed kidney samples are subjected to tissue section and pathological examination. An animal model has application values which cannot be realized by an existing rodent and rabbit animal model, and the non-human primate animal model built by the method has wide application in related fields of fibrosis.

A transducer is used to send an ultrasound pulse toward a stone and to receive ultrasound reflections from the stone. The recorded time between a pulse that is reflected from the proximal surface and a pulse that is reflected either from the distal surface of the stone or from a surface supporting the stone is used to calculate the stone size. The size of the stone is a function of the time between the two pulses and the speed of sound through the stone (or through the surrounding fluid if the second pulse was reflected by the surface supporting the stone). This technique is equally applicable to measure the size of other in vivo objects, including soft tissue masses, cysts, uterine fibroids, tumors, and polyps.

The invention discloses a urine collecting device for gynecological clinical examination, and belongs to the field of medical instruments. The urine collecting device comprises a supporting surface, asupporting column, a funnel, a urine channel, a urine collecting and containing box and urine collecting test tubes, wherein the supporting surface is arranged at the top end of the supporting column, the funnel is arranged in the supporting column, the funnel is connected with one end of the urine channel, the other end of the urine channel is connected with one end of a urine conveying pipe, the other end of the urine conveying pipe is connected with multiple sets of urine conveying branch pipes, the outlet ends of the urine conveying branch pipes are connected with the urine collecting test tubes through test tube plugs, a stabilizing table is arranged in the urine collecting and containing box, the urine collecting test tubes are inserted into the grooves of the stabilizing table, anda heating disc is arranged at the bottom ends of the urine collecting and containing box. According to the invention, with the urine collecting device, urine can conveniently excrete and be conveniently collected, and is collected in different urine collection test tubes, so that the subsequent multiple detection and comparison tests are facilitated, and inspection is facilitated; and the heatingdisc heats to ensure the temperature, so that the mucus freezing is avoided, and the subsequent detection is ensured.

The invention discloses a fistulization catheter which comprises a catheter body which comprises a front section catheter and a rear section catheter. The head of the front section catheter is provided with a drainage hole, the tail of the rear section catheter is provided with a spiral evacuating catheter, a group of arched ribs are arranged between the front section catheter and the rear section catheter, the ribs are distributed at intervals in the circumferential direction of the catheter body, and the ribs jointly form an olive shape. A guide wire penetrates the catheter body through an evacuating catheter opening, after the catheter body completely sleeves the guide wire, the ribs are straightened, and thus the catheter can be smoothly inserted in a ureter from the fistulization oral; the guide wire is drawn out, the ribs recover to the arched state and accordingly the ribs are clamped in the ureter to achieve a catheter fixing effect, and urine enters the catheter body from the drainage hole and is finally discharged out the body from the evacuating catheter. The catheter does not need to be inserted in the kidney, postoperation problems such as calculus and infection are not caused, surgical operation is simple, and the cost is low. The evacuating catheter is spiral, and urine backflow can be effectively avoided.

The invention provides a ureter negative-pressure calculus removing soft endoscope sheath. According to the technical scheme, the ureter negative-pressure calculus removing soft endoscope sheath is characterized by comprising an air compression device; the air compression device is provided with a negative-pressure pipe; the negative-pressure pipe is connected with a waste water tank; the waste water tank is connected with a cleaning pipe; a guide wire is provided with a drainage channel and a connector; the connector is provided with a first connecting port; the first connecting port communicates with the drainage channel; and the first connecting port is connected with the cleaning pipe. The ureter negative-pressure calculus removing soft endoscope sheath has the following beneficial effects that after lithotripsy, the guide wire is inserted into an insertion hole, penetrates through a guide hole and is inserted into the urethra, and the air compression device is started to provide negative pressure to guide the broken calculus to enter the cleaning pipe along with urine, so that the broken calculus is guided into the waste water tank by the cleaning pipe, the broken calculus cleaning effect is achieved, and the broken calculus is easier to clean compared with the mode of natural calculus discharging, and therefore, a better treatment effect is achieved, discomfort caused by discharging broken calculus can be reduced, and the cleaning speed is higher.

The invention discloses an anti-reflux method capable of automatically adjusting along with the change of bladder pressure and a ureteral stent. According to the method, a water retaining soft sleeveis connected to an outlet of a bladder tube section of the stent; the water retaining soft sleeve in a urine storage period is in a free state, and urine in the renal pelvis enters the ureteral stentand is discharged into the bladder through the water retaining soft sleeve; and the water retaining soft sleeve covers the outlet of the bladder tube section under the pressure of the bladder during urination, and anti-reflux effect is achieved. According to the ureteral stent, the water retaining soft sleeve is arranged at the outlet of the bladder tube section, the water retaining soft sleeve inthe urine storage period is in the free state, and urine in the renal pelvis enters the ureteral stent and is discharged into the bladder through the water retaining soft sleeve; during urination, the water retaining soft sleeve covers the outlet of the bladder tube section under the action of bladder pressure; and after urination is finished, the bladder pressure is reduced, and the water retaining soft sleeve returns to a free state. Urine is prevented from reversely entering the ureteral stent by utilizing the covering and sealing effects of the soft water retaining soft sleeve on the urination opening of the ureteral stent, so the anti-reflux effect of the ureteral stent is realized.

The invention relates to the technical field of medical instruments, in particular to a far-end-positioned anti-reflux antibacterial ureter stent tube. The stent tube comprises a hollow catheter and a one-way drainage piece; the hollow catheter is made of flexible materials and can expand in the radial direction of the hollow catheter, and the hollow catheter comprises a pelvis section, a ureter section and a bladder section which are sequentially communicated; the one-way drainage piece is arranged in the bladder section and comprises a one-way opening; when the internal pressure of the ureter section is greater than the pressure of the outer end of the bladder section, the one-way opening is opened; when the internal pressure of the ureter section is less than the pressure of the outer end of the bladder section, the one-way opening is closed, and the pressure needed for opening the one-way opening of the one-way drainage piece is adjustable. By means of the one-way drainage piece capable of guiding urine in the pelvis area to flow towards the bladder area in a one-way mode, the problem of urine backflow is solved, the pressure of the one-way drainage piece for opening the one-way opening can be adjusted according to urination pressure of different patients, filling stimulation is generated on the pelvis area and a ureter cone, creeping of the ureter is obviously enhanced, and the urine backflow rate is reduced.