Disposable needle-holding cartridge for a device for cosmetic treatments
A needle-holding cartridge for cosmetic treatments includes a casing with a first part, intended to be rested on a zone of the body of a patient in which a cosmetic treatment has to be performed, and a second part intended to be inserted into and locked in an appropriate seat obtained at an end of a device for cosmetic treatments, inside the first part of the casing a support element being arranged that can slide inside the casing; to the support element a single needle or a plurality of needles is fixed that can protrude from the casing through an opening placed at a first end of the casing, the support element being provided with a rod-shaped appendage, a portion of which protrudes from the casing through a hole obtained at a second end of the casing, opposite the first end; the needle-holding cartridge further includes a first ring-shaped sealing element that surrounds the appendage and is inserted into a seat obtained at the second end of the casing, and a sheath-shaped second sealing element placed on said portion of the appendage.
1 . Needle-holding cartridge for cosmetic treatments including a casing, which includes a first part, intended to be rested on a zone of the body of a patient in which a cosmetic treatment has to be performed, and a second part intended to be inserted and locked in an appropriate seat obtained in an end of a device for cosmetic treatments, wherein inside the first part of the casing a support element is arranged, which can slide inside the casing; wherein onto the support element a plurality of needles is fixed that can protrude from the casing through an opening placed at a first end of the casing, wherein the support element is provided with a rod-shaped appendage, a portion of which protrudes from the casing through a hole obtained at a second end of the casing, opposite the first end, wherein it further includes a first ring-shaped sealing element that surrounds the appendage and is inserted into a seat obtained at said second end of the casing, wherein a sheath-shaped second sealing element is placed on said portion of the appendage.
2 . Needle-holding cartridge according to claim 1 , wherein the first sealing element is provided with a cylindrical protuberance that also surrounds the appendage and protrudes outside the cartridge-through the hole obtained at the second end of the casing.
3 . Needle-holding cartridge according to claim 2 , wherein the second sheath-shaped sealing element is fitted to the cylindrical protuberance of the first sealing element.
4 . Needle-holding cartridge according to claim 2 , wherein the cylindrical protuberance of the first sealing element is provided with a radial annular protrusion, shaped to be inserted into a corresponding groove of the second sealing element.
5 . Needle-holding cartridge according to claim 1 , wherein between the second sealing element and the portion of the appendage a closed space is defined.
6 . Needle-holding cartridge according to claim 1 , wherein the second sealing element is made of silicone.
7 . Needle-holding cartridge according to claim 1 , wherein on the rod-shaped appendage a coil spring is positioned that is arranged between a collar that is part of the appendage and a resting surface obtained in the casing.
8 . Needle-holding cartridge according to claim 1 , wherein a first pair of electrodes and a second pair of electrodes, that protrude from the first end of the first part are inserted into said first part of the casing.