Abstract:
마이크로니들이형성된풍선도관제작방법이개시된다. 본발명의실시예에따른마이크로니들이형성된풍선도관제작방법은, a) 열적트랜스퍼드로잉(thermal transfer drawing)에의해풍선도관표면에적용된후 풍선도관표면과일체화되어고정될수 있는고분자재료를기판에코팅하는단계; b) 소정의온도로가열된마이크로필러(micro pillar)를이용하여기판표면의고분자재료를액적모양으로채취하는단계; c) 풍선도관의표면을섭씨 40 내지 300 도의온도로가열하는단계; d) 고분자재료를채취한마이크로필러를이용하여, 고분자재료를풍선도관외부표면에접촉시킨후, 풍선도관외부표면으로부터마이크로필러를이격시킴으로써마이크로니들을형성하는단계; e) 풍선도관을냉각시키는단계;를포함하는것을구성의요지로한다.
Abstract:
The present invention relates to a method for making a silicon balloon catheter in which a first tube having its outer diameter slightly smaller than that of a desired catheter is formed by an extruding method, mold lubricant is coated at a portion of a balloon injection opening, a thin film type second tube is formed at the coated outer surface of the first tube by a second extruding, and then the catheter is vulcanized and cut. As a result, when liquid is injected to an expansion tube, the second tube is separated from the first tube, thereby performing a function as a balloon. The method for making a balloon catheter using silicon rubber includes the steps of: forming a first tube by extruding firstly, the tube having its outer diameter slightly smaller than that of a desired catheter, then vulcanizing and cutting the first tube; punching two balloon injection openings having small diameter at a portion for expanding into balloon in the first tube after inserting a support rod into a discharge tube path; coating mold lubricant at a portion of the balloon injection opening; connecting the first tubes coated the mold lubricant by using a connection unit after removing the support rod, and thereafter forming a second tube at the coated outside surface of the first tube by extruding secondly, performing a vulcanizing process and cutting again; forming a tip at the tip portion of the first and second tubes; and punching a urine discharge opening at the first tube.
Abstract:
PURPOSE: A method for manufacturing a balloon catheter is provided to considerably reduce the pain generated during the insertion of the catheter, and to improve the productivity thereof. CONSTITUTION: The method for manufacturing a balloon catheter using silicone rubber comprises the steps of; extruding a first tube having an outer diameter smaller than an outer diameter of a desired catheter(step(S11)); cutting the first tube after applying vulcanized oil to the first tube(step(S12)); punching a balloon injecting opening and a urine discharge opening after inserting a support rod into a withdrawal pipe line provided in the expandable region of the first tube(step(S13)); applying release agent to an inlet part of the balloon(step(S14)); connecting the first tubes after removing the support rod(step(S15)); extruding a second tube(step(S16)); cutting the second tube after applying vulcanized oil to the second tube(step(S17)); molding a tip end part(step(S18)); and punching the urine discharge opening(step(S19)).
Abstract:
Die Anmeldung betrifft einen medizinischer Katheter zur hypothermischen Behandlung mit einem Katheterschlauch (10), der wenigstens einen Durchgangskanal (11) und wenigstens zwei Temperierkanäle (12, 13) aufweist, und mit wenigstens einem Wärmetauscherelement (14), insbesondere einem expandierbaren Ballon, das in einem distalen Katheterabschnitt (15) des Katheterschlauchs (10) angeordnet und mit den Temperierkanälen (12, 13) fluidverbunden ist derart, dass ein Temperierkreislauf gebildet ist. Die Anmeldung zeichnet sich dadurch aus, dass der Katheterschlauch (10) im distalen Katheterabschnitt (16) einen kleineren Außendurchmesser als in einem proximalen Katheterabschnitt (15) aufweist.
Abstract:
A peelable protective sheath and related assemblies/systems and methods are disclosed. The protective sheath may be used on a balloon catheter to protect the balloon and any coating thereon. The protective sheath may be peelable to make removal of the protective sheath easier. The peelable protective sheath may be inserted into a hemostatic valve and introducer while still disposed over the balloon of a balloon catheter to protect the balloon and any bioactive coating thereon from damage during insertion. The peelable protective sheath may be peeled from a proximal end to initiate removal. Alternatively, the peelable protective sheath may be peeled from a distal end of the peelable protective sheath as the balloon catheter is inserted through a hemostatic valve and introducer.