Medical device for the internal heat treatment and supply of medicines

 

The device contains catetory element for insertion into the channel to a predetermined introduced provisions. This catetory element provided with an inflatable balloon having a boundary wall, which can swell to the tissues of the body, when catetory element is in a predetermined entered position, means for supplying to the local fluid supply drugs to the tissues of the body, when catetory element is in a predetermined entered position and a heating device configured to heat the tissues of the body, when catetory element is in a predetermined entered position. The delivery system includes a feed channel for feeding a fluid medicinal product in the canister, and the boundary wall of the cartridge is made permeable to the fluid medicinal product. When catheterbased element in a predetermined entered the position of the feed fluid medicinal product in the container to the feed channel so could inflate the balloon and to the local supply of fluid drugs to the tissues of the body through the boundary walls

The scope of the invention

The present invention relates to a medical device for thermal therapy and local supply of fluid drugs to the tissues of the body, representing a predetermined portion of the boundary wall of the channel in the body of a human or animal, which contains catetory element for insertion into the channel to a predetermined introduced provisions in this catetory element provided with an inflatable balloon having a boundary wall, which can swell to the tissues of the body, when catetory element is in a predetermined entered position; means for supplying to the local fluid supply drugs to the tissues of the body, when catetory element is in a predetermined entered position, and a heating device configured to heat the tissues of the body, when catetory element is in a predetermined entered position (hereinafter briefly called "medical device, designated type").

Prior art

From U.S. patent No. 5380319 (Olympus Optical company, Ltd.) known Meditsinskaya (hereinafter referred to as device "Olympus"). In the device "Olympus" balloon inflated by the fluid therein, and the heating device comprises a heating element in the canister. As for the money supply, it contains the supply line drugs, which ends at one or more discharge devices installed on the outer surface of the boundary wall of the canister. When catetory element device "Olympus is in a predetermined entered position, the balloon is inflated with a liquid in it, and the drug serves on malignant tissue from one or more discharge devices. Then is thermal therapy of malignant tissue by actuating the heating element so that the fluid in the balloon is heated and acts as a medium for heat transfer to the body tissues through the boundary wall of the canister.

According to the present invention features a medical device indicated type with means to connect the supply of the medicinal product with inflating balloon.

Disclosure of the invention

According to the present invention features a medical device indicated type in which the main wall of the cartridge is made permeable to the fluid medicinal product, whereby when catheterbased element in a predetermined entered the position of the feed fluid medicinal product in the container to the feed channel leads to inflate the balloon and to the local supply of fluid drugs to the tissues of the body through the boundary wall of the canister. To the boundary wall of the canister was permeable to the fluid, it can be made porous or perforated. Usually the drug is in liquid form, and in this case the boundary wall of the container is made permeable to liquid.

In a variant embodiment of the invention, as, for example, in the following embodiment, the heating device includes a heating element that is configured to heat the fluid medicinal product before it is released from catheterbased element, whereby it is possible to heat the tissue of the body fluid medicinal product, supplied locally at her through the boundary wall of the canister, when catetory element is in a predetermined entered position. This can be achieved by placing the heating element in the canister. On the other hand, the heating elem is a, connected with the feed channel catheterbased element. Compared with the indirect heating of the tissues of the body, through the device of "Olympus", when applying heated medicines directly to the tissues of the body leads to higher efficiency heating. In addition, heating medicines can improve its effectiveness.

In a variant embodiment of the invention, as for example, in the following embodiment, the device also contains a source of anesthetic fluid means for feeding into the input channel to local supply to body tissues through the boundary wall of the canister, when catetory element is in a predetermined entered position. Of course, medical device according to the invention can be introduced medicines other types of non-restrictive examples of which include antibiotics, anti-cancer remedies and anti-inflammatory agents.

In a variant embodiment of the invention, as for example, in the following embodiment, the medical device is intended for thermal therapy and local supply of fluid drugs to the prostate gland men pose is to a predetermined introduced provisions in which the boundary wall of the cartridge is capable of inflating to the prostate gland.

A description of an example of a variant embodiment of the invention

Now as an example and with reference to the accompanying drawing will be described medical device 1 according to the invention for the treatment of prostate cancer in male patient.

Medical device 1 shown in its operating condition from therapeutic catheter 12 is introduced into the urethra of the patient to the operating position for carrying out thermal treatment of tissue of the prostate gland 23 in the environment surrounding the urethra to cause necrosis of tissue in a partial volume of the prostate 23 from the bladder neck 21 of the bottom towards the top.

therapeutic catheter 12 near its distal end provided with a tank or container 11 having a flexible, expandable and permeable boundary wall 2 made of elastic silicone, latex or other material with appropriate elastic properties. The tank 11 by the feed channel 25 is connected with the supply vessel 24 which is situated in vitro and contains supplied heated liquid anesthetic agent, through che is as an anaesthetic agent 13 is supplied to the tank 11 through the feed channel 25 from the supply vessel 24. The supply channel 25 near the tank 11 is the valve 32 to prevent reverse flow of anesthetic means 13 of the tank 11 and to maintain the desired pressure in the tank 11.

In the tank 11 is the heating device 10 to heat the usual means 13, filed in the tank 11 from the supply vessel 24. The heating device 10 is made from a wire with high resistance heated by applying to it the power conductor 15, which, in turn, is connected to the power source located in vitro (not shown). Of course, could be used in other types of heating devices, for example, the element of Pelti. The heating device equipped with lighting element 33, to facilitate locating therapeutic catheter 12 and its placement.

In the tank 11 is also a temperature sensor 16, which is functionally connected with the control device (not shown) located in vitro, and is designed to measure the temperature in the tank 11. Data about the temperature measurement received from the sensor 16, are used to control the power source and the line is mopey or an optical sensor.

Near the distal end of therapeutic catheter 12 is mounting the cartridge 22, which can be inflated in the usual manner through the channel (not shown) in therapeutic catheter 12.

As shown in the drawing (Fig.1) introducing a therapeutic catheter 12 to the operating position, place the mounting canister 22 in the bladder 21 and the tank 11 near the prostate gland 23. After placement of therapeutic catheter 12 in the working position extend mounting canister 22 to secure the catheter 12 in place. Then served an anaesthetic agent 13 in the tank 11 to expand into contact with the adjacent tissue of the prostate gland 23. In addition, an anaesthetic agent 13 passes through the permeable boundary wall 2 of the tank 11 for anesthesia adjacent tissue of the prostate. Then actuate the heating device 10 to heat the usual means 13 in the tank 11. Thus, heat is transferred to the adjacent tissue of the prostate gland through the boundary wall 2 of the tank 11 and then heated anesthetic, penetrating through the boundary wall 2.

After the heat treatment is cooled tank 11 to the body temperature and sisavang usual means as a conducting medium for thermal treatment of body tissue, which represents the portion of the channel body, achieves several advantages. First, heating of the tissue can occur by direct action of the heated usual means to the tissue of the body that provides improved efficiency of heating of body tissues. Secondly, the heating can be performed at a higher temperature (90(C) without ispitivanja sick excessive pain, that in the special case of thermal therapy of the prostate gland makes possible the vascularization of the tissue of the prostate gland, which becomes self-sustaining, thereby eliminating the need for stent or other support, as in the case of the medical device is known from published International patent application no WO 97/02794 (Lund Instrument AB). Finally, thirdly, the heating of the usual means, as I believe, enhances the analgesic effects of anesthetic tools.

As specialists in this field, the invention is not limited to its use for the treatment of prostate cancer, and equally applicable to other types of therapy, requiring heating of body tissues in the channel up to which are cancers of the esophagus, trachea, ureter and bowel and benign growth of the prostate tissue.

Claims

1. Medical device for thermal therapy and local supply of fluid drugs to the tissues of the human or animal containing catetory element, provided with an inflatable balloon having a boundary wall, which can swell to the tissues of the body, when catetory element is in a predetermined position, means for supplying to the local fluid supply drugs to the tissues of the body in a predetermined position, containing a feed channel for feeding a fluid medicinal product in the container, and the wall of the cartridge is made permeable to the fluid medicinal product, and the heating device to enable heating of the tissues of the body, when catetory element is in a predetermined position, this means filing made with the possibility of inflating the balloon fluid medicinal product.

2. Medical device under item 1, characterized in that the heating device includes a heating element configured to heat tcustomform means, supplied locally through the boundary wall of the canister, when catetory element is in a predetermined position.

3. Medical device under item 1 or 2, characterized in that it further comprises a source of fluid usual means to feed it into the input channel to local supply to body tissues through the boundary wall of the canister, when catetory element is in a predetermined position.

 

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