Pen for the treatment of dermatological disorders and method for use thereof
AssigneeOystershell NV
InventorBart Rossel
Life of this patent
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Abstract
The present invention relates to a pen for the treatment of dermatological disorders, such as warts and the like, by means of a coolant. The pen includes a distal part having a holder for the storage of a coolant and a proximal part with an applicator for the administration of the coolant to the dermatological surface for treatment. These parts extend axially and are in coolant communication by means of a coolant passage in the proximal part, in which a valve body is provided for closing off and/or opening the passage. The passage is provided with at least one bypass for the coolant. In addition, the invention relates to a method for the administration of the pen.
Claims26
A pen for the treatment of dermatological disorders by means of a coolant, the pen comprising:
- a distal part comprising a holder for storage of the coolant;
- and a proximal part axially aligned with the distal part and comprising:
- an applicator for the administration of the coolant to a dermatological surface;
- and an applicator holder to which the applicator is mounted;
- a coolant passage extending axially through portions of the distal and proximal parts to communicate the coolant from the holder to the applicator;
- a ball biased against a distal end of the applicator holder and occluding the coolant passage when the pen is in a rest position and an activated position;
- and a bypass comprising a radially extending channel defined in the distal end of the applicator holder and in fluid communication with the coolant passage, wherein the coolant is prevented from flowing through the coolant passage to the applicator when the pen is in the rest position, wherein the coolant is allowed to flow through the coolant passage to the applicator via the bypass when the pen is moved to the activated position, and wherein the applicator comprises an administration surface, and an average pore size of the applicator decreases in the axial direction towards the administration surface.
A pen for the treatment of dermatological disorders by means of a coolant, the pen comprising:
- a distal part comprising a holder for storage of the coolant;
- and a proximal part axially aligned with the distal part and comprising:
- an applicator for the administration of the coolant to a dermatological surface;
- and an applicator holder to which the applicator is mounted;
- a coolant passage extending axially through portions of the distal and proximal parts to communicate the coolant from the holder to the applicator;
- a ball biased against a distal end of the applicator holder and occluding the coolant passage when the pen is in a rest position and an activated position;
- and a bypass comprising a radially extending channel defined in the distal end of the applicator holder and in fluid communication with the coolant passage, wherein the coolant is prevented from flowing through the coolant passage to the applicator when the pen is in the rest position, wherein the coolant is allowed to flow through the coolant passage to the applicator via the bypass when the pen is moved to the activated position, wherein the applicator comprises a transformable foam, wherein said foam is a polyurethane foam with an average pore size of 400 μm to 700 μm.
Dependencies are inferred from the claim text.