Abstract: A device for supply of heat to body tissue, comprising heating means and a first temperature transducer which is insertable in the body tissue, the heating means being connected with an energy supply unit governed by a control unit via a catheter for treatment which is insertable in a body cavity and said first temperature transducer being operatively connected to the control unit. The control unit is operatively connected with memory means for storage of data corresponding to the survival of cells as a function of cell temperature. An input/output means is operatively connected to control unit to enter data such as desired volume/weight of body tissue to which heat is to be supplied to such an extent that the cells of the tissue die, and the control unit being operatively connected to calculation means for determining volume and weight of such body tissue whose cells have died as a function of temperature and time in the tissue at a certain distance from heating means.

Abstract: An indwelling catheter is positioned in a urinary tract to drain urine from the bladder to a position distally adjacent to a sphincter muscle. A balloon of the catheter is inflated through an inflation tube extending through the urinary tract. A coiled section of the inflation tube contacts the constriction caused by the sphincter muscle. The balloon and the coiled section resist movement of the indwelling catheter while still permitting natural urination. The indwelling catheter is inserted by an insertion tool which is separably connected to the catheter. Once the indwelling catheter is positioned, the tool is disconnected and withdrawn from the urinary tract. Risks of blood clots obstructing the flow of urine through the indwelling catheter immediately following a surgical procedure on the prostate gland are avoided by flushing fluid through the insertion tool and the catheter to clear an internal urine flow passageway in the catheter.

Abstract: 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.

Abstract: An indwelling catheter is positioned in a urinary tract to drain urine from the bladder to a position distally adjacent to a sphincter muscle. A balloon of the catheter is inflated through an inflation tube extending through the urinary tract. A coiled section of the inflation tube contacts the constriction caused by the sphincter muscle. The balloon and the coiled section resist movement of the indwelling catheter while still permitting natural urination. The indwelling catheter is inserted by an insertion tool which is separably connected to the catheter. Once the indwelling catheter is positioned, the tool is disconnected and withdrawn from the urinary tract. Risks of blood clots obstructing the flow of urine through the indwelling catheter immediately following a surgical procedure on the prostate gland are avoided by flushing fluid through the insertion tool and the catheter to clear an internal urine flow passageway in the catheter.

Abstract: An indwelling catheter is positioned in a urinary tract to drain urine from the bladder to a position distally adjacent to a sphincter muscle. A balloon of the catheter is inflated through an inflation tube extending through the urinary tract. A coiled section of the inflation tube contacts the constriction caused by the sphincter muscle. The balloon and the coiled section resist movement of the indwelling catheter while still permitting natural urination. The indwelling catheter is inserted by an insertion tool which is separably connected to the catheter. Once the indwelling catheter is positioned, the tool is disconnected and withdrawn from the urinary tract. Risks of blood clots obstructing the flow of urine through the indwelling catheter immediately following a surgical procedure on the prostate gland are avoided by flushing fluid through the insertion tool and the catheter to clear an internal urine flow passageway in the catheter.

Abstract: 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.

Abstract: 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.

Abstract: A device for the drainage of the bladder through the body's own urethra opening outside of the human body, comprising a tube-shaped body (10). The 5 tube-shaped body is comprised: to assume a first contracted position and for taken up within the bladder as well as a to assume a second partially extended position. At least one thread (14) extends between the bladder and an opening so that the tube-shaped body can be extended from the first position to the second position during 10 the application of a pulling force upon the thread. The tube-shaped body will return to the first position upon the release of the pulling force on the thread.

Abstract: A thermotherapy catheter for heat treating the prostate gland includes an O-ring positioned within a chamber between an outer tube and an interior heat generation device guide tube. The O-ring supports a distal end portion of a probe guide tube at a desired acute angle so that a temperature probe can be advanced from the end of the probe guide tube into the prostate gland at a predetermined desired acute angle for calculating tissue heating and tissue necrosis information from temperature sensors located on a distal end of the temperature probe. The O-ring also separates a still liquid chamber from a circulatory flow path so that heated liquid surrounding the generation device is applied effectively to heat the prostate gland, while the circulating cooling fluid effectively removes heat from a feed cable which supplies energy to the heat generation device.

Abstract: A device for the drainage of the bladder through the body's own urethra opening outside of the human body, comprising a tube-shaped body (10). The tube-shaped body is comprised: to assume a first contracted position and for taken up within the bladder as well as a to assume a second partially extended position. At least one thread (14) extends between the bladder and an opening of the urethra and is attached at a first end of the tube-shaped body so that the tube-shaped body can be extended from the first position to the second position during the application of a pulling force upon the thread. The tube-shaped body in the second partially extended position extends in such a manner so as to exceed the distance between the bladder and the point of the urethra's closing. The tube-shaped body is comprised in such a manner that it will return to the first position upon the release of the pulling force on the thread.

Abstract: A device for the drainage of the bladder through the body's own urethra opening outside of the human body, comprising a tube-shaped body (10). The tube-shaped body is comprised: to assume a first contracted position and for taken up within the bladder as well as a to assume a second partially extended position. At least one thread (14) extends between the bladder and an opening of the urethra and is attached at a first end of the tube-shaped body so that the tube-shaped body can be extended from the first position to the second position during the application of a pulling force upon the thread. The tube-shaped body in the second partially extended position extends in such a manner so as to exceed the distance between the bladder and the point of the urethra's closing. The tube-shaped body is comprised in such a manner that it will return to the first position upon the release of the pulling force on the thread.

Abstract: Transurethral catheter (10) for the heat treatment of body tissue surrounding the catheter, including an elongated light carrier (11). A light receiving and light distributing elongated light probe (12) is operatively connected to said light carrier (11), and the light probe (12) comprises light reflecting surfaces (13) for preventing received light from escaping from the probe (12). At least one light emitting section (14) is formed in the probe (12) for emitting light into said body tissue.

Abstract: A device for heat treatment of prostate, comprising a treatment catheter with a fluid reservoir and heating means which is arranged within the treatment catheter and emits electromagnetic radiation for heating of the surrounding bodily tissue. The fluid reservoir constitutes an integrated part of the catheter for treatment and is positioned in the catheter so that, when inserted in a patient, it extends to cover the area heated by the heating means between the prostatic apex and bladder neck. The fluid reservoir also constitutes a closed chamber which is connectable via a channel passing through the catheter for treatment. A stop for the heat-absorbing means is embodied distal to said heating means and distal to said heat reservoir.

Abstract: A device for treatment of the prostate, comprising a catheter for treatment which is inserted through the urethra. The treatment catheter being provided with a front portion that comprises an expandable container for fixation of treatment catheter with a front portion in the urinary bladder and with a drainage channel ending in the front portion for drainage of urinary bladder. At least one hollow tip is provided to be extendible from treatment catheter into the surrounding prostate tissue of catheter. The tip is connected with a syringe for supply of an astringent and analgesic medicine. By this method, tip is extended from the treatment catheter into the surrounding prostate tissue of catheter. An astringent and analgesic medicine is supplied from the syringe and administered to the prostate tissue through the tip.

Abstract: Medical device (1) for effecting heat treatment and local delivery of a fluid medicament on body tissue presenting a predetermined section of a boundary wall of a passageway in a human or animal body comprising a catheter-like member (12) for insertion into the passageway to a predetermined insertion position, the catheter-like member being provided with an inflatable balloon structure (11) having a boundary wall which is inflatable against the body tissue when the catheter-like member (12) is in the predetermined insertion position and delivery means (2,11,25) for local delivery of the fluid medicament on the body tissue when the catheter-like member (12) is in the predetermined insertion position, and a heating arrangement (10,15) which is adapted to heat the body tissue when the catheter-like member (12) is in the predetermined insertion position.

Abstract: A device for heat treatment of body tissue, including heating means (10) for local heating of the body tissue, and temperature sensing means (11) for sensing the tissue temperature, said heating means being enclosed in a catheter (12). A first temperature sensing means (11) is connected to a first carrier (13), which is made to be advanced through a first opening in catheter (12), and said first carrier (13) is equipped with a pointed tip for insertion into such body tissue that is to be heat-treated.

Abstract: The invention relates to a method and a device for heat treatment of prostatic tissue. The device comprises a treatment catheter with an expandable fluid reservoir and first heating means which is arranged within the treatment catheter and emits electromagnetic radiation for heating of the surrounding prostatic tissue. A second heating means is provided in thermal contact with the liquid in the fluid reservoir for heating of the liquid in the fluid reservoir as well as the tissue located in the immediate surrounding of the reservoir.