WO2022200929A1 - Disposable cartridge holder for a device for cosmetic treatments - Google Patents

Disposable cartridge holder for a device for cosmetic treatments Download PDF

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Publication number
WO2022200929A1
WO2022200929A1 PCT/IB2022/052384 IB2022052384W WO2022200929A1 WO 2022200929 A1 WO2022200929 A1 WO 2022200929A1 IB 2022052384 W IB2022052384 W IB 2022052384W WO 2022200929 A1 WO2022200929 A1 WO 2022200929A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
needle
electrodes
pair
holding cartridge
Prior art date
Application number
PCT/IB2022/052384
Other languages
French (fr)
Inventor
Mats Andreasson
Original Assignee
Campomats S.R.L. Unipersonale
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Campomats S.R.L. Unipersonale filed Critical Campomats S.R.L. Unipersonale
Publication of WO2022200929A1 publication Critical patent/WO2022200929A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1402—Probes for open surgery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0023—Surgical instruments, devices or methods, e.g. tourniquets disposable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00477—Coupling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/0016—Energy applicators arranged in a two- or three dimensional array
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00172—Connectors and adapters therefor
    • A61B2018/00178—Electrical connectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00452—Skin
    • A61B2018/0047—Upper parts of the skin, e.g. skin peeling or treatment of wrinkles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091—Handpieces of the surgical instrument or device
    • A61B2018/00916—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00994—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combining two or more different kinds of non-mechanical energy or combining one or more non-mechanical energies with ultrasound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1495—Electrodes being detachable from a support structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
    • A61M2037/0023—Drug applicators using microneedles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
    • A61M2037/0061—Methods for using microneedles

Definitions

  • the invention relates to a needle-holding cartridge, in particular a disposable needle-holding cartridge usable with devices for cosmetic treatments, in particular devices for microdermoabrasion treatments and micro-needling treatments, or micro-pricking treatments intended, for example, to smooth wrinkles, or remove scars or increase skin tone in a treatment zone by stimulating the production of collagen.
  • Needle-holding cartridges comprise a casing, inside which a needle holding unit is arranged consisting of a support element to which a single needle or a plurality of needles can be fixed.
  • the needle-holding unit can slide inside the casing of the cartridge so that the ends of the needles can exit the cartridge and the body of the device. Sliding of the needle holding unit being controlled by a drive device fitted inside the body of a so-called handpiece and driven by an electric motor.
  • the type of needle to be used depends on the type of treatment to be performed. For example, for microdermoabrasion, micro-needling or micro-pricking treatments cartridges with a high number of needles are used, up to several dozen together.
  • the depth of penetration of the needle, or of the needles, in the skin depends on the treatment to be administered and can vary from a few tenths of a millimetre to a few millimetres, for example from 0.15 mm to 2.5 mm.
  • a needle-holding cartridge that comprises a battery, which supplies an oscillating circuit configured to generate the radio frequency energy which is sent to the needles of the cartridge to be applied during a micro-needling treatment.
  • US9629991 The cartridge disclosed in US9629991 is complex and expensive to be made and does not moreover enable treatment to be performed with radio frequency electric energy independently of microdermoabrasion treatment.
  • US 10220195 a device is known for microdermoabrasion treatments, combined with applying radio frequency electric energy, in the treatment zone.
  • the device comprises a body, or handpiece, to which a disposable needle-holding cartridge of the type mentioned at the beginning can be fitted.
  • - a connecting mechanism that connects the electric motor to the needle-holding unit of the needle-holding cartridge fitted to the handpiece and transforms the rotation motion of the electric motor in a reciprocal motion of the needle -holding unit;
  • a generator generating radio frequency electric energy, which is sent to the needles of the needle-holding cartridge; the generator is also supplied by the battery.
  • the device disclosed in US 10220195 in addition to being complex and expensive to be made, does not allow a treatment with radio frequency electric energy to be made independently of a micro-needling treatment.
  • IT 102015000009009 discloses a head for an automatic device for the microdermoabrasion of the skin.
  • the head comprises: a tubular element of cylindrical shape, inside which a piston is slidable that comprises, at the distal end thereof, a support element that supports a plurality of perforating elements intended to perforate the skin of a patient.
  • the head is used by fitting it to an automatic device for the microdermoabrasion of the skin that comprises a grip or handpiece, to which the head is fitted.
  • the means for driving the piston is arranged inside the grip.
  • a sleeve that is fixed to the grip is arranged outside and coaxially to the head.
  • the sleeve can be made of an insulating material and can comprise two branches of an electric circuit, each of which comprises a respective first electric terminal, electrically connectable to a first generator of electric signals in the grip of the device for the microdermoabrasion.
  • the electric circuit further comprises a central portion embedded in the sleeve and at least one respective second electric terminal, arranged on a distal edge of the sleeve intended to be rested on the skin of a patient, so that the second electric terminal transmits a radio frequency current to the skin.
  • the two branches of the electric circuit are supplied by the generator inserted into the grip of the device for microdermoabrasion and the supply therefore requires electric contacts provided in the grip, in addition to mechanical means for fixing the sleeve to the grip.
  • the device described in IT 102015000009009 can enable treatment with radio frequency electric energy to be administered independently of a microdermoabrasion treatment.
  • the head disclosed in IT 102015000009009 has the drawback of being able to be used only by a specific type of handpiece, because the head has to be designed in such a manner that the electric contacts for supplying the two branches of the electric circuit mate and couple electrically with the contacts provided on the handpiece. This inevitably means that the head cannot be used with a generic handpiece and, in particular, with handpieces devoid of electric contacts to supply the head.
  • One object of the present invention is to eliminate the drawbacks of the needle holding cartridges, or heads, known from the prior art.
  • a further object is to provide a needle-holding cartridge that enables microdermoabrasion, micro-needling and micro-pricking treatments and treatments with radio frequency electric energy to be administered both simultaneously and separately and which can be fitted into any type of handpiece, even those devoid of electric supply means of the cartridge.
  • a head according to the invention has to meet is to be provided with mechanical coupling means that is compatible with the coupling means of the handpiece to which it has to be fitted.
  • the handpiece is provided with a threaded seat for receiving the head, the latter has to be provided with a thread that is suitable for coupling with the thread of the seat of the handpiece.
  • the needle-holding cartridge according to the invention it is possible to administer to a patient, simultaneously or separately, microdermoabrasion, micro-needling, or micro-pricking treatments and radio frequency electric energy applications.
  • the needle-holding cartridge according to the invention can be used with any type of handpiece, with the sole condition that the needle-holding cartridge and the handset are provided with mechanical coupling means that are compatible with one another, it not being necessary for the handpiece to be provided with electrical supply means of the needle-holding cartridge.
  • Figure 1 is an elevation view of an embodiment of a needle-holding cartridge according to the invention.
  • Figure 2 is a section of the cartridge of Figure 1, along line A- A in Figure 1;
  • Figure 3 is a perspective view of the cartridge of Figure 1;
  • Figure 4 is a detail of the cartridge of Figure 1 ;
  • Figure 5 shows a cartridge according to the invention, fitted into a device for cosmetic treatments and connected to electric supply means;
  • Figure 6 shows an adjusting device that is part of the electrical supply means of the needle-holding cartridge according to the invention.
  • FIG. 1 and 2 a needle-holding cartridge 1 according to the invention is illustrated, which is usable with a device 31 for cosmetic treatments ( Figure 5), a so-called handpiece, for example of the type disclosed in patent application No 102019000015560, filed in the name of the applicant of this application.
  • the needle-holding cartridge 1 comprises a casing 2, which can be transparent or semi-transparent or even opaque.
  • the casing 2 comprises a first part 2a, intended to be rested on a zone of the body of a patient on which a cosmetic treatment has to be performed, and a second part 2b intended to be inserted and locked into a seat obtained at one end 32 of the device 31.
  • a support element 3 Inside the first part 2a of the casing 2, a support element 3 is arranged, which can slide axially inside the casing 2. A plurality of needles 4 that can protrude from the casing 2 through an opening 5 placed at a first end 6 of the casing 2 is fixed to the support element 3.
  • the support element 3 is made so as to determine the maximum protrusion of the needles 4 from the hole 5, said protrusion being able to vary from about 0.3 mm to about 2.5 mm, depending on the type of treatment to be performed.
  • the support element 3 is provided with a rod-shaped appendage 7, which protrudes from the casing 2 through a hole 8 placed at a second end 9 of the casing 2, opposite the first end 6.
  • the appendage 7 interacts with drive means provided in the device 31, which exerts a thrust on the appendage 7, so as to move the support element 3 from an initial position shown in Figure 1 in which the needles 4 are retracted inside the casing 2 to a final position (not illustrated in Figures) in which the needles 4 protrude from the opening 5, with a set protrusion.
  • a coil spring 10 is positioned, arranged between a collar 11 that is part of the appendage 7 and a rest surface 12 obtained in the casing 2. [0041] The coil spring 10 is used to return the support element 3 to the initial position when the thrust ceases of the drive means on the appendage 7, so as to be able to perform a reciprocal movement of the support element 3.
  • a seat 13 is obtained into which a ring-shaped first seal element 14 is inserted, which surrounds the appendage 7.
  • the first seal element 14 is provided with a cylindrical protuberance 15 that also surrounds the appendage 7 and protrudes outside the cartridge 1 through the hole 8.
  • the first seal element 14 is used to hinder a leak of body fluids or liquids in general through the hole 8 of the cartridge 1.
  • a second seal element 16 is inserted that is in the shape of a sheath, fitted to the cylindrical protuberance 15 of the first seal element 14.
  • the second seal element 16 can be, for example, made of silicone.
  • the cylindrical protuberance 15 is provided with a radial annular protrusion 17, shaped so as to be inserted into a corresponding groove 18 of the second seal element 16, to lock the second seal element 16 in position on the cylindrical protrusion 15.
  • a closed space 19 is defined that is used to entrap possible fractions of body fluids or liquids in general that may leak between the first seal element 14 and the appendage 7, preventing leakage of the body fluids or liquids into the space outside the cartridge 1.
  • the combined action of the first seal element 14 and of the second seal element 16 ensures that not even the smallest quantity of body fluids or liquids in general can exit the cartridge 1 during use and contaminate the device 31 on which the cartridge 1 is installed.
  • first pair of electrodes 20 and a second pair of electrodes 21 are inserted, that protrude from the first end 6 of said first part 2a, as can be seen in Figures 1 and 2.
  • the electrodes 20 and 21 are used to apply a radio frequency alternating electric current to the skin of a patient during a cosmetic treatment, or, in general, radio frequency electric pulses. Radio frequency alternating electric current or electric pulses can be applied both simultaneously to treatment with the needles 4, and independently of treatment with the needles 4.
  • radio fre3quency electric current or electric pulses
  • the purpose of the application of radio fre3quency electric current, or electric pulses is to obtain a lifting effect due to the action of the electric current, or of the electric pulses, on the proteins of the collagen, with resulting distension of the skin.
  • the first pair of electrodes 20 is provided with a first electric contact element 22 and the second pair of electrodes 21 is provided with a second electric contact element 23.
  • the first electric contact element 22 and the second electric contact element 23 are inserted into a tubular protuberance 24 of the first part 2a of the casing 2.
  • the tubular protuberance 24 is provided with an opening 25 into which a plug 26 can be inserted, for example a jack, which is suitable for establishing an electric contact with the first electric contact element 20 and the second electric contact element 21.
  • the plug 26 is connected to a power cable 27 by which the electrodes 20 and 21 can be supplied with an electric current, or radio frequency electric pulses coming from a source of electric energy independent of the handpiece 31, which can be used also to supply the drive means of the handpiece 31 that moves the support element 3 by the appendage 7.
  • a remote control device 28 can be arranged, by which an operator can activate or deactivate the electric supply of the electrodes 20 and 21 and can adjust the frequency of the electric supply, i.e. of the alternating current, or of the electric pulses, to be sent to an area of the skin of a patient by the electrodes 20, 21.
  • the remote control device 28 can comprise, advantageously, a fixing element 29, by means of which the remote control device can be fixed removably to the handpiece 31, so as to enable an operator to adjust the electric supply of the electrodes 20, 21, whilst gripping the handset 31 with one hand, without removing his or her hand from the handpiece 31.
  • the fixing element 29 can comprise a strip 30 made of elastic material in which the body of the handpiece 31 can be inserted and retained, to fix thereupon the remote- control device 28.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Otolaryngology (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A needle-holding cartridge (1) for cosmetic treatments comprises a casing (2), which comprises a first part (2a), 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 (2b) intended to be inserted and locked on a seat obtained at one end (32) of a device (31) for cosmetic treatments, in which inside the first part (2a) of the casing (2) a support element (3) is arranged, which can slide inside the casing (2); in which a plurality of needles (4) is fixed to the support element (3) that can protrude from the casing (2) through an opening (5) placed at a first end (6) of the casing (2), in which the support element (3) is provided with a rod-shaped appendage (7), a portion (7a) of which protrudes from the casing (2) through a hole (8) obtained at a second end (9) of the casing (2), opposite the first end (6); into the first part (2a) of the casing (2) a first pair of electrodes (20) and a second pair of electrodes (21) are inserted, that protrude from the first end (6) of said first part (2), said first pair of electrodes (20) and said second pair of electrodes (21) are supplied by a power cable (27) connectable to a source of electric energy that is independent of said device (31).

Description

Disposable cartridge holder for a device for cosmetic treatments
[0001] The invention relates to a needle-holding cartridge, in particular a disposable needle-holding cartridge usable with devices for cosmetic treatments, in particular devices for microdermoabrasion treatments and micro-needling treatments, or micro-pricking treatments intended, for example, to smooth wrinkles, or remove scars or increase skin tone in a treatment zone by stimulating the production of collagen.
[0002] Needle-holding cartridges are known that comprise a casing, inside which a needle holding unit is arranged consisting of a support element to which a single needle or a plurality of needles can be fixed.
[0003] The needle-holding unit can slide inside the casing of the cartridge so that the ends of the needles can exit the cartridge and the body of the device. Sliding of the needle holding unit being controlled by a drive device fitted inside the body of a so-called handpiece and driven by an electric motor.
[0004] The type of needle to be used depends on the type of treatment to be performed. For example, for microdermoabrasion, micro-needling or micro-pricking treatments cartridges with a high number of needles are used, up to several dozen together.
[0005] Also, the depth of penetration of the needle, or of the needles, in the skin depends on the treatment to be administered and can vary from a few tenths of a millimetre to a few millimetres, for example from 0.15 mm to 2.5 mm.
[0006] It is known combining a microdermoabrasion, micro-needling or micro-pricking treatment with a treatment that involves applying radio frequency electric energy in the treatment area, for instance radio frequency alternate electric current, or, generally, radio frequency electric pulses. Applying radio frequency electric energy enables a lifting effect to be obtained due to the action of the current on the protein of the collagen, with subsequent relaxation of the skin.
[0007] From US9629991, a needle-holding cartridge is known that comprises a battery, which supplies an oscillating circuit configured to generate the radio frequency energy which is sent to the needles of the cartridge to be applied during a micro-needling treatment.
[0008] The cartridge disclosed in US9629991 is complex and expensive to be made and does not moreover enable treatment to be performed with radio frequency electric energy independently of microdermoabrasion treatment. [0009] From US 10220195, a device is known for microdermoabrasion treatments, combined with applying radio frequency electric energy, in the treatment zone.
[0010] The device comprises a body, or handpiece, to which a disposable needle-holding cartridge of the type mentioned at the beginning can be fitted.
[0011] Inside the body of the device there are arranged:
- a battery;
- an electric motor, supplied by the battery, which drives with oscillating motion the needle-holding unit of the needle-holding cartridge;
- a connecting mechanism that connects the electric motor to the needle-holding unit of the needle-holding cartridge fitted to the handpiece and transforms the rotation motion of the electric motor in a reciprocal motion of the needle -holding unit;
- a generator generating radio frequency electric energy, which is sent to the needles of the needle-holding cartridge; the generator is also supplied by the battery.
[0012] Also, the device disclosed in US 10220195, in addition to being complex and expensive to be made, does not allow a treatment with radio frequency electric energy to be made independently of a micro-needling treatment.
[0013] IT 102015000009009 discloses a head for an automatic device for the microdermoabrasion of the skin.
[0014] The head comprises: a tubular element of cylindrical shape, inside which a piston is slidable that comprises, at the distal end thereof, a support element that supports a plurality of perforating elements intended to perforate the skin of a patient.
[0015] The head is used by fitting it to an automatic device for the microdermoabrasion of the skin that comprises a grip or handpiece, to which the head is fitted. The means for driving the piston is arranged inside the grip.
[0016] A sleeve that is fixed to the grip is arranged outside and coaxially to the head. [0017] The sleeve can be made of an insulating material and can comprise two branches of an electric circuit, each of which comprises a respective first electric terminal, electrically connectable to a first generator of electric signals in the grip of the device for the microdermoabrasion. The electric circuit further comprises a central portion embedded in the sleeve and at least one respective second electric terminal, arranged on a distal edge of the sleeve intended to be rested on the skin of a patient, so that the second electric terminal transmits a radio frequency current to the skin. [0018] The two branches of the electric circuit are supplied by the generator inserted into the grip of the device for microdermoabrasion and the supply therefore requires electric contacts provided in the grip, in addition to mechanical means for fixing the sleeve to the grip.
[0019] The device described in IT 102015000009009 can enable treatment with radio frequency electric energy to be administered independently of a microdermoabrasion treatment.
[0020] Nevertheless, the head disclosed in IT 102015000009009 has the drawback of being able to be used only by a specific type of handpiece, because the head has to be designed in such a manner that the electric contacts for supplying the two branches of the electric circuit mate and couple electrically with the contacts provided on the handpiece. This inevitably means that the head cannot be used with a generic handpiece and, in particular, with handpieces devoid of electric contacts to supply the head.
[0021] One object of the present invention is to eliminate the drawbacks of the needle holding cartridges, or heads, known from the prior art.
[0022] A further object is to provide a needle-holding cartridge that enables microdermoabrasion, micro-needling and micro-pricking treatments and treatments with radio frequency electric energy to be administered both simultaneously and separately and which can be fitted into any type of handpiece, even those devoid of electric supply means of the cartridge.
[0023] The only condition that a head according to the invention has to meet is to be provided with mechanical coupling means that is compatible with the coupling means of the handpiece to which it has to be fitted. For example, if the handpiece is provided with a threaded seat for receiving the head, the latter has to be provided with a thread that is suitable for coupling with the thread of the seat of the handpiece.
[0024] The objects of the invention are achieved with a needle -holding cartridge according to claim 1.
[0025] With the needle-holding cartridge according to the invention, it is possible to administer to a patient, simultaneously or separately, microdermoabrasion, micro-needling, or micro-pricking treatments and radio frequency electric energy applications.
[0026] Further, the needle-holding cartridge according to the invention can be used with any type of handpiece, with the sole condition that the needle-holding cartridge and the handset are provided with mechanical coupling means that are compatible with one another, it not being necessary for the handpiece to be provided with electrical supply means of the needle-holding cartridge.
[0027] Further features and advantages of the invention will be clear from the following description, with reference to the attached drawings, in which:
[0028] Figure 1 is an elevation view of an embodiment of a needle-holding cartridge according to the invention;
[0029] Figure 2 is a section of the cartridge of Figure 1, along line A- A in Figure 1;
[0030] Figure 3 is a perspective view of the cartridge of Figure 1;
[0031] Figure 4 is a detail of the cartridge of Figure 1 ;
[0032] Figure 5 shows a cartridge according to the invention, fitted into a device for cosmetic treatments and connected to electric supply means;
[0033] Figure 6 shows an adjusting device that is part of the electrical supply means of the needle-holding cartridge according to the invention.
[0034] In Figures 1 and 2, a needle-holding cartridge 1 according to the invention is illustrated, which is usable with a device 31 for cosmetic treatments (Figure 5), a so-called handpiece, for example of the type disclosed in patent application No 102019000015560, filed in the name of the applicant of this application.
[0035] The needle-holding cartridge 1 comprises a casing 2, which can be transparent or semi-transparent or even opaque.
[0036] The casing 2 comprises a first part 2a, intended to be rested on a zone of the body of a patient on which a cosmetic treatment has to be performed, and a second part 2b intended to be inserted and locked into a seat obtained at one end 32 of the device 31.
[0037] Inside the first part 2a of the casing 2, a support element 3 is arranged, which can slide axially inside the casing 2. A plurality of needles 4 that can protrude from the casing 2 through an opening 5 placed at a first end 6 of the casing 2 is fixed to the support element 3. The support element 3 is made so as to determine the maximum protrusion of the needles 4 from the hole 5, said protrusion being able to vary from about 0.3 mm to about 2.5 mm, depending on the type of treatment to be performed.
[0038] The support element 3 is provided with a rod-shaped appendage 7, which protrudes from the casing 2 through a hole 8 placed at a second end 9 of the casing 2, opposite the first end 6.
[0039] When the cartridge 1 is inserted into the device 31, the appendage 7 interacts with drive means provided in the device 31, which exerts a thrust on the appendage 7, so as to move the support element 3 from an initial position shown in Figure 1 in which the needles 4 are retracted inside the casing 2 to a final position (not illustrated in Figures) in which the needles 4 protrude from the opening 5, with a set protrusion.
[0040] On the rod- shaped appendage 7 a coil spring 10 is positioned, arranged between a collar 11 that is part of the appendage 7 and a rest surface 12 obtained in the casing 2. [0041] The coil spring 10 is used to return the support element 3 to the initial position when the thrust ceases of the drive means on the appendage 7, so as to be able to perform a reciprocal movement of the support element 3.
[0042] At the end 9 of the casing 2, a seat 13 is obtained into which a ring-shaped first seal element 14 is inserted, which surrounds the appendage 7. The first seal element 14 is provided with a cylindrical protuberance 15 that also surrounds the appendage 7 and protrudes outside the cartridge 1 through the hole 8. The first seal element 14 is used to hinder a leak of body fluids or liquids in general through the hole 8 of the cartridge 1.
[0043] On a portion 7a of the appendage 7, which protrudes outside the cartridge 1 through the hole 8, a second seal element 16 is inserted that is in the shape of a sheath, fitted to the cylindrical protuberance 15 of the first seal element 14. The second seal element 16 can be, for example, made of silicone. The cylindrical protuberance 15 is provided with a radial annular protrusion 17, shaped so as to be inserted into a corresponding groove 18 of the second seal element 16, to lock the second seal element 16 in position on the cylindrical protrusion 15.
[0044] Between the second seal element 16 and the portion 7a of the appendage 7, a closed space 19 is defined that is used to entrap possible fractions of body fluids or liquids in general that may leak between the first seal element 14 and the appendage 7, preventing leakage of the body fluids or liquids into the space outside the cartridge 1.
[0045] The combined action of the first seal element 14 and of the second seal element 16 ensures that not even the smallest quantity of body fluids or liquids in general can exit the cartridge 1 during use and contaminate the device 31 on which the cartridge 1 is installed.
[0046] In the first part 2a of the casing 2, a first pair of electrodes 20 and a second pair of electrodes 21 are inserted, that protrude from the first end 6 of said first part 2a, as can be seen in Figures 1 and 2.
[0047] The electrodes 20 and 21 are used to apply a radio frequency alternating electric current to the skin of a patient during a cosmetic treatment, or, in general, radio frequency electric pulses. Radio frequency alternating electric current or electric pulses can be applied both simultaneously to treatment with the needles 4, and independently of treatment with the needles 4.
[0048] The purpose of the application of radio fre3quency electric current, or electric pulses is to obtain a lifting effect due to the action of the electric current, or of the electric pulses, on the proteins of the collagen, with resulting distension of the skin.
[0049] The first pair of electrodes 20 is provided with a first electric contact element 22 and the second pair of electrodes 21 is provided with a second electric contact element 23. [0050] The first electric contact element 22 and the second electric contact element 23 are inserted into a tubular protuberance 24 of the first part 2a of the casing 2. The tubular protuberance 24 is provided with an opening 25 into which a plug 26 can be inserted, for example a jack, which is suitable for establishing an electric contact with the first electric contact element 20 and the second electric contact element 21.
[0051] The plug 26 is connected to a power cable 27 by which the electrodes 20 and 21 can be supplied with an electric current, or radio frequency electric pulses coming from a source of electric energy independent of the handpiece 31, which can be used also to supply the drive means of the handpiece 31 that moves the support element 3 by the appendage 7.
[0052] On the power cable 27, a remote control device 28 can be arranged, by which an operator can activate or deactivate the electric supply of the electrodes 20 and 21 and can adjust the frequency of the electric supply, i.e. of the alternating current, or of the electric pulses, to be sent to an area of the skin of a patient by the electrodes 20, 21.
[0053] The remote control device 28 can comprise, advantageously, a fixing element 29, by means of which the remote control device can be fixed removably to the handpiece 31, so as to enable an operator to adjust the electric supply of the electrodes 20, 21, whilst gripping the handset 31 with one hand, without removing his or her hand from the handpiece 31.
[0054] The fixing element 29 can comprise a strip 30 made of elastic material in which the body of the handpiece 31 can be inserted and retained, to fix thereupon the remote- control device 28.

Claims

1. Needle-holding cartridge (1) for cosmetic treatments comprising a casing (2) that comprises a first part (2a) intended to be rested on a zone of the body of a patient on which a cosmetic treatment has to be performed, and a second part (2b) intended to be inserted into and locked in a suitable seat obtained at one end (32) of a device (31) for cosmetic treatments, wherein inside the first part (2a) of the casing (2) a support element (3) is arranged that can slide inside the casing (2); wherein on the support element (3) a plurality of needles (4) is fixed that can protrude from the casing (2) through an opening (5) placed at a first end (6) of the casing (2), wherein the support element (3) is provided with a rod shaped appendage (7), a portion (7a) of which protrudes from the casing (2) through a hole (8) obtained at a second end (9) of the casing (2), opposite the first end (6), characterized in that into the first part (2a) of the casing (2) a first pair of electrodes (20) and a second pair of electrodes (21) are inserted that protrude from the first end (6) of said first part (2a), the electrodes of said first pair of electrodes (20) and said second pair of electrodes (21) are supplied by a power cable (27) that is connectable to a source of electric energy that is independent of said device (31).
2. Needle-holding cartridge (1), according to claim 1, wherein the first pair of electrodes (20) is provided with a first electric contact element (22) and the second pair of electrodes (21) is provided with a second electric contact element (23).
3. Needle-holding cartridge (1) according to claim 2, wherein the first electric contact element (22) and the second electric contact element (23) are inserted into a tubular protuberance (24) of the first part (2a) of the casing (2), in which the tubular protuberance (24) is provided with an opening (25) into which a plug (26) can be inserted that is suitable for establishing an electrical connection with the first electric contact element (22) and the second electric contact element (23), in which the plug (26) is connectable to the power cable (27).
4. Needle-holding cartridge (1) according to one of the preceding claims, wherein on the power cable (27) a remote control device (28) is arranged, by means of which the electric supply of the first pair of electrodes (20) and of the second pair of electrodes (21) can be deactivated and the frequency of the electric supply can be adjusted.
5. Needle-holding cartridge (1) according to claim 4, wherein the remote-control device (28) is provided with a fixing element (29), by means of which the remote-control device (28) can be fixed removably to the device (31) for cosmetic treatment.
6. Needle-holding cartridge (1) according to claim 5, wherein said fixing device (29) comprises a strip (30) made of elastic material.
7. Needle-holding cartridge (1) according to one of the preceding claims further comprising a ring-shaped first seal element (14) that surrounds the appendage (7) and is inserted into a seat (13) obtained in said second end (9) of the casing (2) and a sheath shaped seal element (16), inserted on said portion (7a) of the appendage (7).
8. Needle-holding cartridge (1) according to claim 7, wherein the first seal element (14) is provided with a cylindrical protuberance (15) that also surrounds the appendage (7) and protrudes outside the cartridge (1) through the hole (8) obtained at the second end (9) of the casing (2), wherein the sheath-shaped second seal element (16) is fitted on the cylindrical protuberance (15) of the first seal element (14).
9. Needle-holding cartridge (1) according to claim 8, wherein the cylindrical protuberance (15) of the first seal element (14) is provided with a radial annular protrusion (17), shaped so as to be inserted into a groove (18) of the second seal element (16).
10. Needle-holding cartridge (1) according to any one of claims 7 to 9, wherein between the second seal element (16) and the portion (7a) of the appendage (7) a closed space (19) is defined.
11. Needle-holding cartridge (1) according to one of the preceding claims, wherein on the rod-shaped appendage (7) a coil spring (10) is positioned, arranged between a collar (11) that is part of the appendage (7) and a rest surface (12) obtained in the casing (2).
PCT/IB2022/052384 2021-03-25 2022-03-16 Disposable cartridge holder for a device for cosmetic treatments WO2022200929A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000007376A IT202100007376A1 (en) 2021-03-25 2021-03-25 DISPOSABLE NEEDLE HOLDER CARTRIDGE FOR A DEVICE FOR COSMETIC TREATMENTS
IT102021000007376 2021-03-25

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WO2022200929A1 true WO2022200929A1 (en) 2022-09-29

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WO (1) WO2022200929A1 (en)

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US5304763A (en) * 1991-06-07 1994-04-19 Alan Ellman Finger switch for electrosurgical handpiece
US6325795B1 (en) * 1996-03-12 2001-12-04 Sherwood Services Ag Replaceable accessory cord and handswitch
US20090299361A1 (en) * 2007-12-05 2009-12-03 Lion Flyash Disposable electromagnetic energy applicator and method of using it
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