Cartridge detachable non-focused handpiece and non-focused ultrasound medical device including the same

1 . A cartridge detachable non-focused handpiece comprising:

a handpiece-shaped housing; and

a cartridge that is detachably attached to the housing,

wherein the housing includes:

a coupling groove formed on one surface thereof into which a part of the cartridge is inserted and attached;

an output switch formed on an upper surface thereof and configured to manipulate an ultrasound wave output;

attachment/detachment buttons formed on both side surfaces thereof and configured to control attachment and detachment of side surface of the cartridge; and

a power supply part configured to supply a power to the cartridge, wherein the cartridge includes:

a contact part formed at one end thereof, the contact part having an ultrasound generation module embedded therein and being configured to contact a skin of a subject;

an insertion part formed at the other end thereof, the insertion part being protruded in a shape corresponding to an inner shape of the coupling groove and having an attachment/detachment part which is formed at side surfaces of the insertion part to be inserted into the coupling groove and is engageable by pressing the detachment buttons; and

a substrate electrically connected to the power supply part to drive the ultrasound generation module,

wherein in the cartridge, the insertion part is inserted into and fixedly attached to the coupling groove, and the ultrasound generation module is configured to generate non-focused ultrasound waves using the power supply part,

wherein the ultrasound generation module includes:

a transducer configured to generate ultrasound waves; and

a cooling block configured to absorb heat from the transducer,

a water block to be in contact with an upper surface of the cooling block and through which cooling water moves, and a pair of nipples formed on an upper surface of the water block and through which cooling water is introduced and discharged are formed at the cartridge,

cooling water supply holes into which the nipples are inserted to provide cooling water to the water block are formed at the housing, and

when the cartridge is coupled with the housing, the cooling water provided from the cooling water supply holes circulates through the water block and absorbs heat from the transducer, and

wherein the cooling water supply holes have therein check valves so that the nipples are sealed when the nipples are separated from the cooling water supply holes, and the cooling water supply holes are opened when the nipples are inserted into the cooling water supply holes to provide and discharge the cooling water from the handpiece.

2 . The cartridge detachable non-focused handpiece of claim 1 , wherein the insertion part has a pressure sensor embedded in a contact surface to be in contact with the power supply part, and

the pressure sensor is configured to detect whether or not the cartridge and the housing are coupled, and the ultrasound generation module is configured to be driven only when the coupling of the cartridge and the housing is detected.

3 . The cartridge detachable non-focused handpiece of claim 1 , wherein a coupling protrusion protrudes from an outer surface of the insertion part,

a coupling rail to be engaged with the coupling protrusion is formed on an inner surface of the coupling groove, and

the coupling protrusion slides along the coupling rail when the insertion part is inserted into the coupling groove.

4 . The cartridge detachable non-focused handpiece of claim 1 , wherein the cartridge further includes:

a skin cooling part configured to cool the skin of the subject, wherein the skin cooling part includes:

a cooling surface formed along an edge of the contact part to cool the skin of the subject; and

a thermoelectric element configured to absorb heat from the cooling surface;

wherein the cooling surface forms a cooling wall configured to cool the skin layer of the subject around the ultrasound waves transmitted from the ultrasound generation module to the skin of the subject.

5 . The cartridge detachable non-focused handpiece of claim 1 , wherein the cartridge further includes:

a skin stimulation part configured to stimulate the skin of the subject,

wherein the skin stimulation part includes:

an EMS pad that is provided at the contact part and provide electrical stimulation to a treatment portion of the subject; and

an EMS control module configured to drive and control the EMS pad, and

wherein an EMS driving switch configured to control driving of the EMS control module is formed on an outer surface of the housing.

6 . A non-focused ultrasound medical device including the cartridge detachable non-focused handpiece described in claim 1 .