referring now to fig1 to 7 , a hot medicinal compress apparatus which using electric power as a heat source is provided consistent with a first embodiment of the present invention . in this embodiment , the apparatus comprises a heater 2 and a medicine bag 3 , wherein the medicine bag 3 is constructed by a soft and tenacious liquid absorption material 7 which wraps up medicine powder 9 or a medicated cloth , in combination with a strong water absorption material 8 . the liquid absorption soft material 7 may be selected from cloth materials , the water absorption material 8 may be selected from cotton or cotton yarn ; and the medicine powder is putted over the cotton or cotton yarn , or as an alternative , a medicated cloth soaked with a medicinal liquid is putted over the cotton or cotton yarn , followed by wrapping them up in the liquid absorption material 7 ( e . g . cotton cloth ), with the cotton or cotton yarn as the lower face of the medicine bag . when wrapping the metal tube 17 with the medicine bag 3 , the metal tube is arranged to come contact with the lower face of the medicine bag in order to prevent the medicine power from being burnt caused by exposure of the medicine power to the heat source for long time , thereby reducing the potent of the medicine . in a more specific scheme , the cartridge comprises : the metal tube 17 ; a first layer of the liquid absorption soft material / cotton cloth 7 which wrapping up the strong water absorption material / cotton 9 , said first layer being wrapped around the outer wall surface of the metal tube 17 ; and a second layer of the liquid absorption soft material / cotton cloth 7 which wrapping up the medicine powder 8 in a manner that the medicine power leak would not take place , said second layer being wrapped around the outer surface of the first layer so that the strong water absorption material / cotton 9 is arranged between the medicine powder 8 and the metal tube 17 . an example of such a cartridge is made by a process comprising the steps of : putting the strong water absorption material / the cotton over the middle area of the front half section of a square cotton cloth and putting the medicine powder over the middle area of the rear half section of the cotton cloth ; folding up the left and right sides of the cotton cloth in light of the length of the metal tube so as to form a cloth strip in which the cotton and the medicine powder are wrapped , the width of said cloth strip being preferably equal to the length of the metal tube ; and wrapping the surface of the metal tube with the cloth strip from its front section to its rear section . the cotton layer is arranged between the medicine powder and the metal tube with the purpose of preventing the medicine power from being burnt caused by direct contact of the medicine power with the metal tube for long time , thereby reducing the potent of the medicine . the heater 2 comprises a handle 1 , a heating element 5 , a metal tube 17 , a heat conducting tube 4 having a plurality of axial protrusion ribs on the tube wall thereof , front and rear round step members 10 and 10 ′, a screw nut 12 , a stainless steel washer 11 , front and rear baffle rings 18 and 18 ′. the heating element 5 is an electrothermal tube and is mounted in the heat conducting tube 4 . the plurality of protrusion ribs are provided and evenly spaced along the circumference on the outer wall of the heat conducting tube 4 and the heat conducting tube is connected with the handle 1 via the rear round step member 10 ′ having a through hole along the central axis . the rear round step member 10 ′ is a cylindrical body having at least one round step at each of its two ends , one end of which has three steps 10 ′ a , 10 ′ b , 10 ′ c , and the outer most end is the round step 10 ′ c which has the minimum profile and is fixed in the mounting hole at the front end of the handle 1 . the step 10 ′ b adjacent to the step 10 ′ c is a square step on which a rear baffle ring 18 ′ having a foot rest is mounted ( see fig7 ). the rear baffle ring 18 ′ is an integrated body formed by a circular ring portion and a trapezoid portion wherein the trapezoid portion is the foot rest having a flat end 18 ′ a at its lower end , by which the foot rest can be placed firmly on the platform to support the heater . the step 10 ′ a has the same size and shape as the step 10 ′ b , on which a stainless steel washer 11 is mounted . the washer 11 has an outer diameter slightly larger than the maximum diameter portion 10 ′ d of the rear round step member 10 ′, serving as a position limiter to the metal tube 17 which is plugged on the maximum diameter portion of the step member to allow to leave a room between the metal tube 17 and the rear baffle ring 18 ′ in order to avoid generation of the friction when the metal tube 17 rotates . another end of the rear round step member ( i . e . the internal end ) has only one round step which is connected fixedly with the heat conducting tube 4 . the rear round step member 10 ′ has a through hole in communication with the through hole of the handle and with the inner cavity of the heat conducting tube 4 , in such a manner that the connection wire of the heating element 5 can pass through the central through holes in communication with each other . likewise , another end of the heat conducting tube ( i . e . the external end ) is also fixedly connected to the internal end step of the front round step member 10 which is symmetrically shaped with the rear step member 10 ′. the metal tube 17 has a length adapted for the distance between the two ends of the heat conducting tube 4 plus the combined length of the maximum diameter portions of the front and rear round step members , and it is respectfully plugged on the maximum diameter portions 10 d , 10 ′ d of the front and rear round step members . their dimensions are devised to be spatially matched with each other to allow the rotation of the metal tube . the front round step member 10 acts also as a stopper for the external end ( cover ) of the metal tube . similar to the rear round step member 10 ′, another end of the front round step member 10 ( i . e . the external end ) has three steps 10 a , 10 b , 10 c from in to out , these steps 10 a , 10 b , 10 c is respectively provided with the stainless steel washer 11 , the front baffle ring 18 having a foot rest and a screw thread connection ( i . e . the screw nut 12 ) which is used for fastening the baffle ring by connection with the screws of the smallest step . in this way , the front baffle ring 18 , the neighboring stainless steel washer 11 and the metal tube 17 may be easily removed . the front and rear baffle rings , each of which has a foot rest , allow the hot medicinal compress apparatus of the invention to be placed on a table . the screw nut has an air ventilation hole 16 in communication with the through hole of the front round step member for solving the problem of expanding with heat and contracting with cold in the heat conducting tube . the cartridge is made by wrapping the outer surface of the metal tube 17 of the heater with the medicine bag . the invention is preferably used in combination with a bottled medicine liquid which is a effective cure for the conditions or symptoms , in order to promote the potent of the medicine powder . preferably , the handle 1 is made of plastic material , on which there is a power supply switch 13 . the electric wire of the heating element 5 is connected with the switch 13 via the through holes of the rear round step member 10 ′ and the handle 1 . preferably , the front and rear step members 10 , 10 ′ are made of plastic materials with resistance to high temperature , for the purpose of enhancing electricity insulation and heat insulation as well as supporting the cartridge to allow the free rotation of the cartridge on the heat conducting tube . the demountable washer , baffle ring and screw nut are provided to allow the cartridge to rotate on the support of the round step members so as not to come out . due to the rolling of the medicinal liquid during the operation , there is a possibility that the medicinal liquid may overflow and permeates into the heater thereby to form a short circuit . in order to avoid this , the sealing ring 20 is arranged between the baffle ring and the stainless steel washer to prevent the medicinal liquid from permeating into the handle though the gaping . the present invention is advantageously used in combination with a bottled medicine liquid to facilitate the potent of the medicine . in fig8 - 9 , a hot medicinal compress apparatus is provided consistent with a second embodiment of the present invention . this embodiment provides the apparatus significantly differing in that combustion gas energy is used as a heat source . in this embodiment , the heating element is a combustion gas type heating element 6 ; a combustion gas storage container is arranged in the through hole of the handle , and a rear cover 19 is also provided on the handle ; the combustion gas heating element 6 is mounted in the heat conducting tube 4 , the fittings of the heating element 6 are connected with the gas storage container of the handle and the combustion gas switch and electronic igniter by passing through the though hole of the rear round step member . after the combustion gas switch and electronic igniter 14 is switched on , the combustion gas burns the heat conducting tube to heat the cartridge 3 . the air ventilation hole 16 in the center of the screw nut is provided to keep communication with the through hole of the front round step member for supplementing with air the heating element in the heat conducting tube 4 during the combustion . it is understood that many other embodiments of the present invention are also possible , and many corresponding modifications as well as variations can be made by those skills in the art as according to the disclosure of the present invention and without departing from the spirits and essentials thereof , while such modifications and variations fall into the scope of the claims of the present invention .
the hot medicinal compress apparatus is a therapeutic and hearth care medical device which has heating , medicament and rolling functions . it includes a heater and a cartridge carrying a medicinal compress layer . the heater includes a heating element and a heat conducting tube in which the heating element is mounted and at both ends of which a front round step member and a rear round step member having a through hole are respectively arranged ; at another end of the front round step member , a washer and a demountable baffle ring are provided and fixed by a screw nut , while at another end of the rear round step member , a handle is arranged , in which a through hole is provided and on which a control switch is mounted . the cartridge is comprised of a metal tube and a medicinal compress layer which is wrapped around the metal tube .