30 results about "Urinary stent" patented technology

A system and related methods for maintaining the patentcy of the ureter comprising a pusher tube having a pusher tube lumen and an inflate lumen disposed within a wall of the pusher tube and a urinary stent having a proximal and distal portions with an elongated body portion therebetween configured to fit the ureter of the patient and defining a lumen. The system further includes an end-effector that may comprise an inflatable balloon positioned at the proximal portion of the urinary stent for retaining the proximal portion in the urinary bladder. At the distal portion, a retention end-piece is positioned for retaining the distal portion of the stent in the renal pelvis. The end-effector and the retention end-piece of the stent maintain the elongated body portion in situ. The end-effector may also include an inflatable balloon and may contain pharmaceutical or biologic agents for controlled release into the bladder.

A partial-length catheter, or an extendable tube or sleeve member of the catheter, is selectively movable within the prostatic urethra to open a urine drainage passageway through and obstructed portion of the prostatic urethra or to open the external urinary sphincter muscle and thereby discharge urine from the bladder. A control element is manipulated at a position exterior of the urinary canal to selectively move the catheter or the extendable tube or sleeve member, thereby selectively controlling urine discharge. The catheter may also be used to diagnose urinary retention problems caused by a weak bladder or a prostatic obstruction.

The invention discloses a medical drainage device matched with a portable urinary catheterization bag, and belongs to the technical field of medical equipment. The medical drainage device comprises a liquid storage bag body, a urine introducing device, a drainage mechanism, a bag hanging device and a liquid discharging valve of a liquid storage bag, wherein the lower part of the liquid storage bag body is provided with a liquid discharging valve connecting pipe; the urine introducing device is communicated the cavity of the liquid storage bag body; the drainage mechanism is connected with the urine introducing device in a matched way; the bag hanging device is combined with the upper part of the liquid storage bag body; the liquid discharging valve of the liquid storage bag is connected with the liquid discharging valve connecting pipe in a matched way. The medical drainage device is characterized by further comprising a catheter, which comprises a catheter body, an air bag, an inflation pipe and an inflation valve, wherein one end of the catheter body forms the guide head part of the catheter, and the other end is provided with a urine collecting duct connection sleeve; the cavity wall of the catheter body is internally provided with an air bag inflation hole, and the tail end of the inflation pipe is provided with an inflation valve adapter; the bag hanging device comprises a sling plate, a hanging strap and a hanging rope; the liquid discharging valve connecting pipe is fixed to the lower part of the liquid storage bag body; the liquid discharging valve of the liquid storage bag comprises a valve base, a valve body and a wrench. The medical drainage device can satisfy packaging requirements and hanging requirements according to needs, and is convenient to operate and good in sealing effect; the phenomenon that the catheter slides out of the bladder does not occur.

The invention relates to a blockage-preventing electric urinary catheterization machine for discharging blood clots in the urethral canal. The blockage-preventing electric urinary catheterization machine comprises a smashing and cutting head and a driving device, wherein the driving device is connected with the smashing and cutting head through a transmission shaft in a urethral catheter; and a negative pressure connector is arranged on the urethral catheter. The blockage-preventing electric urinary catheterization machine disclosed by the invention has the advantages that based on a conventional urethral catheter, the smashing and cutting head is driven by an electric device to cut and smash the blood clots in urine, then the cut and smashed blood clots are discharged out of bodies through negative pressure aspiration, blockage of the urethral catheter by the blood clots can be prevented, the urinary catheterization efficiency is improved, and pain of patients can be alleviated.

The invention discloses a portable urinary catheterization device which comprises a urine storage bag, a first urinary catheterization tube, a second urinary catheterization tube, a urine leading tubeand a urine delivery tube. The upper portion of the urine storage bag is fixedly connected with the first urinary catheterization tube by a urinary catheterization opening, the other end of the firsturinary catheterization tube is detachably connected with the urine leading tube by a first connector, a first binding band is slidably connected with the outer surface of the first urinary catheterization tube by a slide ring, and a second binding band is slidably connected with the outer surface of the second urinary catheterization tube by a slide ring. The portable urinary catheterization device has the advantages that the first binding band and the second binding band are slidably connected with the surfaces of the outer sides of the first urinary catheterization tube and the second urinary catheterization tube by the slide rings, hook-and-loop tapes are arranged at the tail ends of the first binding band and the second binding band, accordingly, the first binding band can be bound on the waist of a user, the second binding band can be bound on the leg of the user, and the portable urinary catheterization device can be conveniently carried when the user goes out; the first urinary catheterization tube and the second urinary catheterization tube are rigid straight tubes, the urine leading tube and the urine delivery tube are bendable flexible tubes, and accordingly the portable urinary catheterization device can be conveniently carried; the portable urinary catheterization device is simple in structure, convenient to operate and high in applicability.

The invention discloses a urethral catheter and a ureteral stent device comprising the same, which are used for leading out a pull wire of a ureteral stent tube in the body of a patient. The urethral catheter comprises an outer sheath and an inner core slidably sleeved in the outer sheath, the inner surface of the head of the outer sheath and the outer surface of the head of the inner core enclose a pull wire fixing cavity, and a magnetic portion is arranged at a position close to the head of the inner core. When the urethral catheter is used for leading out the pull wire, the urethral catheter is fed into an anterior urethra by means of conventionally indwelling the urethral catheter, the pull wire is embedded into the pull wire fixing cavity by pulling the inner core backwards after the magnetic portion sucks the pull wire, the urethral catheter is integrally pulled outwards, and then the pull wire can be smoothly led out of a urethral orifice. The position of the pull wire is determined by the aid of the magnetic portion, the pull wire is clamped and led out by means of coordination of the inner core and the outer sheath, and the pull wire can be led out of the body of the patient by means of simple operation.

The invention relates to a urinary stent. The urinary system stent comprises a stent body and a cleaning robot, and the cleaning robot is slidably connected with the support body and can reciprocate along the surface of the support body to physically clean the surface of the support body. According to the urinary stent, by means of surface physical cleaning operation formed in the process that the cleaning robot reciprocates along the stent body, calculi formed on the surface of the stent body can be effectively removed, blockage of the calculi to the stent body is avoided, and it is guaranteed that the urinary system stent can effectively and stably work for a long time in the body of a postoperative patient.

The invention belongs to the technical field of medical devices, and relates to a memory alloy esophageal stent with a uniform nano-copper sulfide film with high-efficiency photothermal physiotherapy function and a preparation method thereof. The stent reduces dopamine under alkaline conditions to obtain a polydopamine-coated memory alloy The scaffold is prepared by the method of in-situ growth of copper sulfide by polydopamine efficiently adsorbing copper ions under heating conditions. The method of the present invention adopts a unique method of in-situ growing nano-CuS particles on the surface of the support. The nano-CuS material is safe and non-toxic, and the growth process is simple and fast; the light-to-heat conversion is efficient and can be used repeatedly; the present invention can be used in various shapes and Other types of nickel-titanium alloy stents, such as biliary stents, intestinal stents, urinary tract stents, and tracheal stents.

A urinary stent includes ends for deployment in the kidney and bladder, respectively, that are non-coplanar. The bladder end of the stent includes a luminary groove, covered by a sleeve of materials softer than the remainder of the stent, allowing urine at sufficient pressures to pass out from the stent, between the stent and the sleeve. The bladder end of the stent adapts its shape according to respiratory changes in the length of the stent. This shape change also prevents or reduces stent related pain.

This document describes a urinary catheter assembly that can reduce the need for a user to handle the urinary catheter directly, thereby reducing the likelihood of a urinary tract infection and making the cathing process less messy. In one aspect, a urinary catheter apparatus and methods for voiding a human's bladder and enabling a human patient to void his or her bladder are provided.

Discloses a novel synergistic herbal composition comprising combination of therapeutically effective amount of Vrun bhavit, Kadalikshar, Apamargkshar, Yavkshar and optionally Gomutrakshar along with pharmaceutical acceptable additives, useful for the treatment of kidney stone and other urinary disorders like inflammation and urinary stent related problems.