Microneedling device
The invention relates to cosmetic treatment devices, and discloses a microneedling device, which includes a handle with a liquid medicine cavity, a main cavity, a stamp assembly with a detachable bottom shell, a microneedle assembly with micro-needles with detachable bases and a telescopic control device. The control device uses a rotating sleeve to achieve precise extension and retraction of the microneedle, which can be adapted to skin drug delivery in multiple scenarios and improve flexibility of use.
1 . A microneedling device, comprising:
a handle ( 1 ), a liquid medicine cavity ( 101 ) being arranged inside the handle ( 1 ), a top portion of the handle ( 1 ) being provided with a liquid filling port communicated with the liquid medicine cavity ( 101 );
a stamp assembly ( 2 ), the stamp assembly ( 2 ) being connected with a bottom portion of the handle ( 1 ) and provided inside with a hollow cavity ( 201 ), the hollow cavity ( 201 ) being communicated with the liquid medicine cavity ( 101 ), a bottom portion of the stamp assembly ( 2 ) being provided with a needle hole ( 202 );
a microneedle assembly ( 3 ), the microneedle assembly ( 3 ) being arranged inside the hollow cavity ( 201 ), the microneedle assembly ( 3 ) comprising a fixing base ( 301 ) and a plurality of microneedles ( 302 ), each of the plurality of microneedle ( 302 ) corresponding to the needle hole ( 202 );
a telescopic control device ( 4 ), the telescopic control device ( 4 ) being arranged on the handle ( 1 ), the telescopic control device ( 4 ) being in transmission connection with the microneedle assembly ( 3 ) for controlling the microneedle ( 302 ) to extend or retract relative to the needle hole ( 202 ) of the stamp assembly ( 2 );
the stamp assembly ( 2 ) comprises a main cavity ( 203 ) and a bottom shell ( 204 ) detachably connected with a bottom portion of the main cavity ( 203 ), and the hollow cavity ( 201 ) is formed between the main cavity ( 203 ) and the bottom shell ( 204 );
the main cavity ( 203 ) is detachably connected with the bottom shell ( 204 ) by a buckle to achieve a detachable connection;
a top portion of the main cavity ( 203 ) extends upward to form a neck portion ( 203 a );
the telescopic control device ( 4 ) comprises a transmission member ( 401 ) and a rotating sleeve ( 402 );
the transmission member ( 401 ) is sleeved outside the neck portion ( 203 a );
the rotating sleeve ( 402 ) is sleeved outside the transmission member ( 401 ), an inner wall of the rotating sleeve ( 402 ) is provided with a ridge ( 402 a ), and an outer wall of the transmission member ( 401 ) is provided with a groove ( 401 a ) that matches the ridge ( 402 a ) so that the rotating sleeve ( 402 ) may drive the transmission member ( 401 ) to rotate synchronously;
an inner wall of the transmission member ( 401 ) is provided with an internal thread ( 401 b );
the microneedle assembly ( 3 ) further comprises a transmission column ( 303 ) extending upward into the neck portion ( 203 a ), and the transmission column ( 303 ) is provided with an external threaded portion ( 303 a );
the neck portion ( 203 a ) is provided with a guide groove ( 203 b ) extending along an axial direction thereof, and the external threaded portion ( 303 a ) of the transmission column ( 303 ) passes through the guide groove ( 203 b ) and is screwed together with the internal thread ( 401 b ) of the transmission member ( 401 );
by rotating the rotating sleeve ( 402 ), the transmission member ( 401 ) may be driven to rotate, and then the transmission column ( 303 ) is driven to move axially along the guide groove ( 203 b ) through the cooperation between the internal thread ( 401 b ) and the external threaded portion ( 303 a ), so as to achieve the extension or retraction of the microneedle ( 302 );
one end of the transmission member ( 401 ) and one end of the rotating sleeve ( 402 ) are in contact with one end of the main cavity ( 203 ) of the stamp assembly ( 2 ).
2 . The microneedling device according to claim 1 , wherein the fixing base ( 301 ) of the microneedle assembly ( 3 ) comprises a fixing base body ( 301 a ) and a needle base ( 301 b ) detachably connected with a bottom portion of the fixing base body ( 301 a ), and the transmission column ( 303 ) is integrally formed on a top portion of the fixing base body ( 301 a ).
3 . The microneedling device according to claim 2 , wherein the microneedle assembly ( 3 ) is provided with a plurality of longitudinal needle plates ( 304 ), the plurality of microneedles ( 302 ) are grouped and fixed on bottom edges of the plurality of longitudinal needle plates ( 304 ), and the longitudinal needle plates ( 304 ) are snap-fitted and fixed on the needle base ( 301 b ); the needle base ( 301 b ) is provided with a needle plate groove ( 301 b - 1 ) that matches the longitudinal needle plate ( 304 ).
4 . The microneedling device according to claim 2 , wherein a horizontal needle plate ( 305 ) is arranged, and the plurality of microneedles ( 302 ) are fixed as a whole on a bottom surface of the horizontal needle plate ( 305 ); the microneedle assembly ( 3 ) further comprises a needle pressing block ( 306 ), and the horizontal needle plate ( 305 ) is pressed and fixed on the needle base ( 301 b ) by the needle pressing block ( 306 ).
5 . The microneedling device according to claim 1 , wherein the bottom portion of the handle ( 1 ) is inserted into a top portion of the rotating sleeve ( 402 ).
6 . The microneedling device according to claim 5 , comprising a catheter ( 5 ), wherein one end of the catheter ( 5 ) is communicated with a bottom portion of the liquid medicine cavity ( 101 ), and the other end of the catheter extends into the hollow cavity ( 201 ) of the stamp assembly ( 2 ) and is communicated with the microneedle assembly ( 3 ) in the hollow cavity ( 201 ).
7 . The microneedling device according to claim 1 , wherein a sealing cover ( 6 ) is detachably connected at the liquid filling port.