44results about "Urinary bladder" patented technology

Set forth are vascular valves and servovalves and methods of using the same that may be positioned in the circulatory system without interrupting blood flow to facilitate solid organ transplantation so as to reduce graft organ anoxia and degradation before and after harvesting and storage, thereby minimizing late-term cardiac allograft vasculopathy as a major cause of graft failure. Along the urinary tract, bypassing bladder-generated urge sensation by diverting urine directly from the ureters to a neobladder or collection bag alleviates intractable incontinence, nocturia, urethral syndrome, overactive bladder, dysuria, or frequency. Where the lower tract is missing, a prosthesis can thwart disease and preclude the degenerative metaplastic transition to carcinoma risked when gut is used to construct a conduit for urine, a neobladder, and / or high-maintenance stoma. Druglines to valves and servovalves can directly pipeline-target medication to nidi, anastomoses, or any other trouble spots.

The present disclosure relates to techniques for restricting a urinary bladder and for evacuating urine from a urinary ladder. More specifically, an implantable pumping device is provided, having one or several constriction devices configured to constrict the urinary bladder in order to evacuate urine.

The present disclosure relates to techniques for restricting a urinary bladder and for evacuating urine from a urinary ladder. More specifically, an implantable pumping device is provided, having one or several constriction devices configured to constrict the urinary bladder in order to evacuate urine.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

An implantable medical device for use as an artificial urinary bladder can include a collection container configured to be placed in a patient's abdominal cavity and a pump configured to be subcutaneously placed outside the abdominal cavity to allow the patient to perceive the need for urination and controls timing of the urination. Flexible tubing can connect the patient's ureters to the collection container, connect the collection container to the pump, and connect the pump to the patient's urethra, with unidirectional valves where needed, to allow for urination through the patient's natural urethra. The implantable medical device can optionally include a cleaning port and tubing connecting the cleaning port to the collection container for introducing a liquid cleaning agent into internal urination circuit of the device for cleaning, disinfection, and prevention of stone formation.

Intravesical devices (100) are provided that are wholly deployable within the bladder of a patient in need of treatment and are well tolerated by the patient. The device (100) may include an elastic body (106) having a retention shape having (i) dimensions that provide intravesical mobility and that prevent voiding of the medical device through the urethra, and (ii) dimensions, buoyancy, or both, that exclude the medical device from entering the orifices of the ureters. The elastic body may exert a maximum acting force less than 1 N when compressed to a shape with a maximum dimension in any dimension of 3 cm. The device may include a drug for controlled release within the bladder, for treatment of the bladder or a regional tissue. Methods of treatment are also provided that include selecting a patient in need of treatment in the bladder where tolerability of the treatment is a primary concern.

The disclosure relates to apparatus and methods for managing a shape of a junction between a bladder and urethra, for example, to promote urinary continence after a prostatectomy.

To create an implant that allows for easy and reliable treatment of the bladder neck. [Solution] This is achieved by an implant having a pressurizing means structure for expanding the bladder neck of a person, particularly a removable implant. This pressurizing means structure applies local pressure to the tissue of the bladder neck. The pressurizing means structure may be connected to a retaining means for operation. This retaining means may be a wire, thread, or rod, and the retaining means is used to insert the implant or pressurizing means structure into the bladder neck via the urethra, and, if necessary, to retrieve the pressurizing means structure from the patient's body after the treatment is completed.

Intravesical devices are provided that are wholly deployable within the bladder of a patient in need of treatment and are well tolerated by the patient. The device may include an elastic body having a retention shape having (i) dimensions that provide intravesical mobility and that prevent voiding of the medical device through the urethra, and (ii) dimensions, buoyancy, or both, that exclude the medical device from entering the orifices of the ureters. The elastic body may exert a maximum acting force less than 1 N when compressed to a shape with a maximum dimension in any dimension of 3 cm. The device may include a drug for controlled release within the bladder, for treatment of the bladder or a regional tissue. Methods of treatment are also provided that include selecting a patient in need of treatment in the bladder where tolerability of the treatment is a primary concern.

The invention creates an implant with which a bladder neck can be treated in a simple and reliable manner. This is achieved by an implant, in particular a removable implant, having a pressure means structure for expanding the bladder neck of a person. This pressure means structure exerts local pressure on the tissue of the bladder neck. The pressure means structure can be connected to a holding means for handling. This holding means, which may be a wire or a thread or a rod, can be used to insert the implant or the pressure means structure through the urethra into the bladder neck and, if necessary, to retrieve the pressure means structure from the patient's body after the end of the treatment.

A percutaneous urinary catheter configured to be deployed in a urinary tract, including: (a) a proximal portion; and (b) a distal portion including a retention portion configured to be deployed in a kidney and / or a renal pelvis, the retention portion including one or more drainage holes leading to one or more lumen(s) within the proximal portion, wherein the retention portion, when deployed, defines a three-dimensional shape sized and positioned to maintain patency of fluid flow between the kidney and / or renal pelvis and a proximal end of the catheter by inhibiting mucosal tissue from appreciably occluding the one or more drainage holes when negative pressure is applied through the catheter.

An implant with which a bladder neck can be treated in a simple and reliable manner. This is achieved by an implant, in particular a removable implant, having a pressure structure for expanding the bladder neck of a person. This pressure structure exerts local pressure on the tissue of the bladder neck. The pressure structure can be connected to a holding for handling. This holding, which may be a wire or a thread or a rod, can be used to insert the implant or the pressure structure through the urethra into the bladder neck and, if necessary, to retrieve the pressure structure from the patient's body after the end of the treatment.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

An implantable medical device for use as an artificial urinary bladder can include a collection container configured to be placed in a patient's abdominal cavity and a pump configured to be subcutaneously placed outside the abdominal cavity to allow the patient to perceive the need for urination and controls timing of the urination. Flexible tubing can connect the patient's ureters to the collection container through anti-reflux valves preventing urine from flowing back to kidneys, connect the collection container to the pump through a unidirectional connection valve, and connect the pump to the patient's urethra through a unidirectional urethral valve to allow for urination through the patient's natural urethra.

A surgical medical device includes a rod portion and a support portion extending from the rod portion. The support portion has a first stretch segment, a second stretch segment, and a third stretch segment disposed between the first stretch segment and the second stretch segment. The surgical medical device has a control mechanism. The surgical medical device stretches or contracts the first stretch segment, the third stretch segment and the second stretch segment by the control mechanism.

Disclosed herein is an in-vivo implantable system for bladder management. The system includes an actuator, a urine-level sensor, and a microcontroller connected to the actuator and the urine-level sensor. The actuator includes a two-way smart biomaterial having a changeable / restorable shape due to applying / removing at least one of an electric field, a magnetic field, a light change, a temperature change, ultrasound waves, and combinations thereof. The actuator is utilized to contract / release at least one of the bladder, the urethra, and the ureter(s). The urine-level sensor includes one of a strain sensor, a pressure / force sensor, and an impedance sensor and is used to measure bladder fullness during filling / voiding. The microcontroller is used to perform a method of management of micturition, prevention of bladder leakage, prevention of urine reflux to kidneys of the living body, and combinations thereof utilizing the actuator and the urine-level sensor.

The invention discloses a natural bladder imitating urination system which comprises an artificial bladder body and a controller connected with the artificial bladder body, the artificial bladder body comprises an outer bag body and an elastic inner bag body arranged in the outer bag body, and a urine storage cavity used for storing urine is defined by the inner bag body; the artificial bladder body is provided with a liquid inlet channel and a liquid outlet channel which are communicated with the urine storage cavity, the outer bag body is further connected with a switch valve used for opening or closing the liquid outlet channel, and a closed pressure stabilizing cavity is defined between the outer side wall of the inner bag body and the inner side wall of the outer bag body. An air pressure detection device which is located in the pressure stabilizing cavity and can detect air pressure is arranged on the artificial bladder body, the controller is electrically connected with the detection device so that air pressure parameters can be collected, and the controller is connected with the switch valve so that the switch valve can be controlled to be started and stopped. The natural bladder-imitating urination system is simple and compact in structure, more stable, safer and more reliable.

The invention relates to an implant by means of which the bladder neck can be treated in a simple and reliable manner. This is achieved by an implant, in particular a removable implant, having a pressure device structure for expanding the bladder neck of a person. The pressure device structure applies local pressure to the tissue of the bladder neck. The pressure device structure may be connected to a holding device for operation. The retaining device may be a wire, a yarn or a rod, and may be used to introduce the implant or the pressure device structure through the urethra into the bladder neck and to remove the pressure device structure again from the patient's body if necessary after the end of the treatment.

Implantable remotely operated magnetically controlled intelligent sensing artificial bladder device. The flexible prosthesis is connected to an inlet one-way valve, an outlet one-way valve, and an inlet one-way valve. The outlet one-way valve is anastomosed with the human urethra and has a preset opening pressure threshold. An internal multi-pole magnet, a horizontal pressing plate, and the flexible prosthesis are coaxially connected in series on the lead screw from top to bottom. The upper and lower ends of the lead screw are respectively connected to the bottom surfaces of the top cover and the bottom shell through bearings. The central hole of the internal multi-pole magnet is key-connected to the lead screw. A nut is installed in the central hole of the horizontal pressing plate. The lead screw meshes with the nut, and the lead screw passes through the central hole of the flexible prosthesis. A slider is connected to the peripheral edge of the horizontal pressing plate. The slider is arranged on a vertical guide rail and slides along the vertical guide rail. A urine pressure sensor is provided inside the flexible prosthesis. An external driving device that provides an external magnetic field for driving the rotation of the internal multi-pole magnet. The present invention is applicable to patients who need bladder replacement and can provide more convenient and high-quality living experiences for patients.

The present disclosure relates to techniques for restricting the bladder and draining urine from the bladder. More specifically, an implantable pump device is provided having one or more constriction devices configured to constrict the bladder to drain urine.

Implants to control urinary flow and empty the bladder, and to prevent or treat involuntary urinary retention To provide an embeddable device. The device is adapted to be implanted inside the patient's bladder (30) for draining urine. The expandable member 20 includes a control device 50 for controlling the volume of the expandable member. The control device is adapted to be connected to an expandable member through the wall of the bladder.

The present disclosure relates to techniques for restricting a urinary bladder and for evacuating urine from a urinary ladder. More specifically, an implantable pumping device is provided, having one or several constriction devices configured to constrict the urinary bladder in order to evacuate urine.

An implantable medical device for use as an artificial urinary bladder can include a collection container configured to be placed in a patient's abdominal cavity and a pump configured to be subcutaneously placed outside the abdominal cavity to allow the patient to perceive the need for urination and controls timing of the urination. Flexible tubing can connect the patient's ureters to the collection container, connect the collection container to the pump, and connect the pump to the patient's urethra, with unidirectional valves where needed, to allow for urination through the patient's natural urethra. The implantable medical device can optionally include a cleaning port and tubing connecting the cleaning port to the collection container for introducing a liquid cleaning agent into internal urination circuit of the device for cleaning, disinfection, and prevention of stone formation.

The present disclosure relates generally to controlled extension medical stents, and more particularly to controlled extension devices positioned in the body to stent the ureter and facilitate drainage from the kidney to the bladder.

An assembly implanted in the body of the user and operative to remove fluid from the user's abdominal cavity including a major chamber, operative as a pump, structured for manual disposition between a collapsed orientation and an expanded orientation and a conduit assembly interconnecting the major chamber in fluid communication with the abdominal cavity and a user's bladder. A valve assembly connected to the conduit assembly in flow regulating relation to fluid passing from the abdominal cavity to the bladder, through the major chamber. The manual disposition of the major chamber is at least partially defined by a force applied thereto externally of the user body. Disposition of the major assembly between the collapsed and expanded orientations results in fluid flow from the abdominal cavity to the major chamber and successively from the major chamber to the bladder, for expulsion by urination.

There is provided a sensor assembly (200) for monitoring a bladder (15) of a subject (10). The sensor assembly (200) comprises a carrier structure (242) and a plurality of ultrasound transducers (231-234) for emitting and detecting ultrasound signals, wherein the ultrasound transducers (231-234) are coupled to the carrier structure (242), and face in at least two different directions (U1-U4). The sensor assembly (200) further comprises a plurality of electrical connectors (238) for transmitting electrical signals between a data logger (120) and the ultrasound transducers (231-234) and a flexible circuit (240) electrically connecting the ultrasound transducers (231-234) to the electrical connectors (238).

An apparatus for inserting a stent into a bodily structure of a subject has a proximal and distal end. The apparatus comprises a first movable structure and a second movable structure. The apparatus further comprises a stent guide wire having a distal terminus, at least a portion of the stent guide wire wound about the first movable structure. A stent pusher having a distal terminus is provided. At least a portion of the stent pusher is wound about the second movable structure. The apparatus is operable to advance the distal termini of the stent guide wire and the stent pusher distally for deploying a stent.

A device for mitigating urinary incontinence post prostatectomy comprises an implant 102 (Figure 1C) having a first portion 104 and a second portion 106 configured to form a hollow interior area withi

Intravesical devices are provided that are wholly deployable within the bladder of a patient in need of treatment and are well tolerated by the patient. The device may include an elastic body having a retention shape having (i) dimensions that provide intravesical mobility and that prevent voiding of the medical device through the urethra, and (ii) dimensions, buoyancy, or both, that exclude the medical device from entering the orifices of the ureters. The elastic body may exert a maximum acting force less than 1 N when compressed to a shape with a maximum dimension in any dimension of 3 cm. The device may include a drug for controlled release within the bladder, for treatment of the bladder or a regional tissue. Methods of treatment are also provided that include selecting a patient in need of treatment in the bladder where tolerability of the treatment is a primary concern.