105 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 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 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 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 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 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.

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 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.

The invention discloses a transurethral implantation type catheter medicine injection flushing device. The device comprises a containing part, an outer cover, a handle, a flow diversion chamber, a composite tube, a supporting tube, a flexible urethral catheterization cannula and the like, wherein the containing part comprises a urine temporary storage chamber, a circulating chamber and a liquid medicine bottle; the urine temporary storage chamber is used for temporarily storing urine; a urine inlet is formed in the upper end of the urine temporary storage chamber; a urine discharge port and avalve are arranged in/at the lower end of the urine temporary storage chamber; and a backflow port and a suction port are formed in the upper end of the circulating chamber. According to the invention, circulating cleaning is achieved, and circulating cleaning is conducted after serous secreta or bacterial derivatives on the surface of the mucous membrane are removed. The device can further go deep into the bladder to apply medicines to clean the bladder and the ureter. The telescopic guide flexible urethral catheterization cannula can be controlled to stretch out, draw back and swing. When the urethra, the bladder and the ureter need to be simultaneously applied with the medicines and cleaned, circulating liquid medicine needs to be replaced, a tubeline needs to be cleaned or a rod head needs to be replaced.

A pump assembly is provided, including a pump module configured to be positioned within an interior portion of a ureter and/or renal pelvis of a patient for providing negative pressure to the patient's ureter and/or kidney, the pump module including: a housing including a flow channel for conducting fluid, wherein the housing is configured to be positioned within the interior portion of the ureterand/ the renal pelvis; and a pump element positioned within the channel to draw fluid through the channel; and a control module coupled to the pump module, the control module being configured to direct motion of the pump element to control flow rate of fluid passing through the channel, and including a housing configured to be positioned within at least one of a second interior portion of the patient's ureter, a second portion of the patient's renal pelvis, or an interior portion of a patient's bladder.