Medicine injection tip, hand piece, and skin treatment device
AssigneeJeisys Medical Inc.
InventorsJong Seung Park, Kyoung Ho An, Min Young Kim, Won Ju Yi, Dong Hwan Kang
Life of this patent
Estimating the term…
Abstract
A medicine injection tip includes: a cylinder; a shaft in the cylinder and movable closer to or spaced apart from skin; a needle unit between the shaft and the skin; and a locking unit between the shaft and the needle unit to lock or unlock the shaft as the shaft is moved. A hook recess may be provided in any one of the shaft and the locking unit, and a hook locked to or unlocked from the hook recess is provided in the other of the shaft and the locking unit. The medicine injection tip may be mounted on a hand piece, which may be part of a skin treatment device.
Claims15
A medicine injection tip comprising:
- a cylinder;
- a shaft provided in the cylinder and movable in a direction toward or away from skin;
- a needle unit disposed between the shaft and the skin;
- a locking unit provided between the shaft and the needle unit and configured to lock or unlock the shaft as the shaft is moved,
- wherein a hook recess is provided in any one of the shaft or the locking unit, and
- wherein a hook operable to be locked to or unlocked from the hook recess is provided in the other of the shaft or the locking unit, and the hook unlocks from the hook recess to unlock the shaft in response to the shaft moving away from the skin;
- and
- a driving module configured to move the shaft, wherein:
- moving the shaft toward the skin causes (1a) the hook to be locked to the hook recess at a top region of the locking unit, and (1b) the shaft to be moved to a bottom region of the locking unit when locked, and
- moving the shaft away from the skin causes (2a) the hook to be unlocked from the hook recess at the top region of the locking unit, and (2b) the shaft to be moved to an initial position when unlocked.
A medicine injection tip comprising:
- a cylinder;
- a shaft positioned in the cylinder and movable in a first direction toward an extended position and a second direction toward a retracted position;
- a needle unit;
- a locking unit positioned between the shaft and the needle unit and operable to lock or unlock the needle unit and the shaft, the locking unit and the shaft defining a coupling including a hook recess and a hook provided on one or the other of the shaft or the locking unit, respectively, such that the hook unlocks from the hook recess to unlock the shaft in response to the shaft moving in the second direction toward the retracted position;
- and
- a driving module configured to move the shaft in the first and second directions, wherein moving the shaft in the first direction causes the hook to be locked to the hook recess at a top region of the locking unit and the shaft to be moved to a bottom region of the locking unit, and moving the shaft in the second direction causes the hook to be unlocked from the hook recess at the top region of the locking unit and the shaft to be moved to an initial position.
Dependencies are inferred from the claim text.