Lateral pressure sensing pointer

A lateral pressure sensing pointer, comprising:

• a housing, being a hollow structure that extends a length along an axial direction, wherein the housing has an end opening, a lateral opening, and an accommodation space, and the end opening and the lateral opening are respectively in communication with the accommodation space;
• a cartridge, disposed at the end opening;
• a lateral key, disposed at the lateral opening and having an inner surface and an outer surface that are opposite to each other, wherein the inner surface faces the accommodation space;
• a first elastic member, wherein one end of the first elastic member is combined with the inner surface of the lateral key, and the first elastic member can provide an elastic force along a radial direction perpendicular to the axial direction;
• a first pressure sensing element, disposed inside the accommodation space and opposite to the other end of the first elastic member, wherein the first pressure sensing element can sense a pressure applied along the radial direction;
• and
• a second elastic member, abutting against the inner surface of the lateral key and capable of providing an elastic force along the radial direction.