摘要:
[Obj ect] Provided are a balloon coating method and a balloon coating apparatus by which the thickness and/or morphological form of a drug in a coating formed on a balloon can be appropriately set. [Solution] The balloon coating method and the balloon coating apparatus (50) are for forming a coating layer (32) on a surface of a balloon (30). The balloon coating method includes: a coating step of moving a coating section (94) for applying a coating liquid (R) containing a drug relative to the balloon (30) in the direction of an axis (X), while rotating the balloon (30) about the axis (X) of the balloon (30), thereby to apply the coating liquid (R) to an outer surface of the balloon (30); a detection step of detecting the distance (L) of a dried part (B) where the coating liquid (R) applied to the outer surface of the balloon (30) has been dried from the coating section (94); and a control step of controlling moving velocity (Sx) of the coating section (94) relative to the balloon (30) in such a manner that the distance (L) of the dried part (B) from the coating section (94) is maintained at a preliminarily set designated distance (L0).
摘要:
[Obj ect] Provided are a balloon coating method and a balloon coating apparatus by which the thickness and/or morphological form of a drug in a coating formed on a balloon can be appropriately set. [Solution] The balloon coating method and the balloon coating apparatus (50) are for forming a coating layer (32) on a surface of a balloon (30). The balloon coating method includes: a coating step of moving a coating section (94) for applying a coating liquid (R) containing a drug relative to the balloon (30) in the direction of an axis (X), while rotating the balloon (30) about the axis (X) of the balloon (30), thereby to apply the coating liquid (R) to an outer surface of the balloon (30); a detection step of detecting the distance (L) of a dried part (B) where the coating liquid (R) applied to the outer surface of the balloon (30) has been dried from the coating section (94); and a control step of controlling moving velocity (Sx) of the coating section (94) relative to the balloon (30) in such a manner that the distance (L) of the dried part (B) from the coating section (94) is maintained at a preliminarily set designated distance (L0).
摘要:
Provided is a balloon coating method and apparatus which can perform coating while freely controlling, for example, the thickness of a coating layer and/or the morphological form of a drug. The balloon coating method and the balloon coating apparatus (50) are for forming a coating layer (32) on a surface of a balloon (30). The balloon coating method includes: a pulling step of pulling the balloon (30) in the direction of an axis (X) of the balloon (30) to thereby straighten a bend of the balloon (30); and a coating step of rotating the balloon (30) about the axis (X) of the balloon (30), with the balloon (30) maintained in the bend-straightened state, and coating an outer surface of the balloon (30) with a coating liquid (R) containing a drug.
摘要:
A balloon coating method which makes it possible to suitably set the thickness and morphological form of a drug in a coating formed on a balloon is provided. The balloon coating method is for forming a coating layer (32) containing a water-insoluble drug on an outer surface of a balloon (30) of a balloon catheter (10). The balloon coating method includes an application step in which, where a flexible dispensing tube (94) for supplying a coating solution containing the water-insoluble drug and a solvent is formed at its end portion with an opening portion (95) for discharging the coating solution therethrough and when the opening portion-formed end portion side of the dispensing tube (94) is kept in contact with the outer surface of the balloon (30) in such a manner as to be oriented in a direction opposite to a rotating direction of the balloon (30) while the balloon (30) is rotated about an axis of the balloon (30), the coating solution is discharged through the opening portion (95) and applied to the outer surface of the balloon (30) while the dispensing tube (94) is moved relative to the balloon (30) in an axial direction X of the balloon (30).
摘要:
A balloon coating method which makes it possible to suitably set the thickness and morphological form of a drug in a coating formed on a balloon is provided. The balloon coating method is for forming a coating layer (32) containing a water-insoluble drug on an outer surface of a balloon (30) of a balloon catheter (10). The balloon coating method includes an application step in which, where a flexible dispensing tube (94) for supplying a coating solution containing the water-insoluble drug and a solvent is formed at its end portion with an opening portion (95) for discharging the coating solution therethrough and when the opening portion-formed end portion side of the dispensing tube (94) is kept in contact with the outer surface of the balloon (30) in such a manner as to be oriented in a direction opposite to a rotating direction of the balloon (30) while the balloon (30) is rotated about an axis of the balloon (30), the coating solution is discharged through the opening portion (95) and applied to the outer surface of the balloon (30) while the dispensing tube (94) is moved relative to the balloon (30) in an axial direction X of the balloon (30).
摘要:
Provided is a balloon coating method and apparatus which can perform coating while freely controlling, for example, the thickness of a coating layer and/or the morphological form of a drug. The balloon coating method and the balloon coating apparatus (50) are for forming a coating layer (32) on a surface of a balloon (30). The balloon coating method includes: a pulling step of pulling the balloon (30) in the direction of an axis (X) of the balloon (30) to thereby straighten a bend of the balloon (30); and a coating step of rotating the balloon (30) about the axis (X) of the balloon (30), with the balloon (30) maintained in the bend-straightened state, and coating an outer surface of the balloon (30) with a coating liquid (R) containing a drug.
摘要:
Provided is a positioning method for balloon coating by which the thickness, morphological form and the like of a drug in a coating formed on a balloon can be suitably set. This method is a positioning method for balloon coating for forming a coating layer (32) containing a water-insoluble drug on an outer surface of a balloon (30) of a balloon catheter (10). A plane which is perpendicular to an extending direction of a dispensing tube (94) for supplying a coating solution and which passes through the axis of the balloon (30) is defined as a reference plane (A). The positioning method includes a positioning step in which the dispensing tube (94) is positioned in such a manner that a virtual position (V) at which an opening portion (95) would be located if the dispensing tube (94) is assumed to be non-flexible is located within the range of 0 degrees to 40 degrees from the reference plane (A) toward the rotating direction side of the balloon (30), in a region extending from the reference plane (A) in a direction opposite to the discharge direction of the dispensing tube (94).
摘要:
There are provided a balloon coating method, a balloon rotating method, and a balloon coating device, which can properly apply a coating solution to an outer surface of a balloon, and which can properly set a morphological form of a drug used in coating the balloon. There is provided a balloon coating method for forming a coating layer (32) containing a water-insoluble drug on an outer surface of a balloon (30) of a balloon catheter (10). The method has a step of fitting a drive shaft (111) for rotating the balloon catheter (10) to an opening portion of a three-way stopcock (170) to be attached to a proximal portion of a hub (40) to fix the drive shaft (111) by using a frictional force, and a step of moving a dispensing tube (134) for supplying a coating solution containing the drug in an axial direction of the balloon (30) while causing the drive shaft (111) to rotate the balloon (30) around an axis (X) of the balloon (30), so as to apply the coating solution to the outer surface of the balloon (30).