Liposuction apparatus with pressurized liquid spray and liposuction method using the apparatus
First Claim
1. A liposuction apparatus having a tubular cannula, an injection source for injecting liquid, a suction source, and a hand piece, wherein:
- the hand piece (2) is sterile, disposable and delivers at least one jet (4) of working liquid under pressure;
the tubular cannula (3) being removable from the hand piece (2) to facilitate resterilization and reuse thereof, the tubular cannula has a first distal extremity (18) with at least one suction orifice (24) and at least one ejection orifice (23) spaced from the at least one suction orifice (24) for ejecting sterile working liquid under pressure and a second proximate extremity (19) which facilitates releasable attachment of the tubular cannula (3) to the hand piece (2),a side surface of the tubular cannula (3) comprises an area (27), extending on an angular sector of about 90°
, without any suction orifice;
the suction source (14) communicates via a sterile disposable tube of the hand piece (2) with the suction orifice (24) at the first distal extremity (18);
the injection source has a generator which generates pressurized sterile working liquid connected via a sterile disposable tube of the sterile disposable hand piece (2) with the ejection orifice (23) of the first distal extremity (18);
a disposable reserve of the sterile working liquid supplies the generator with the working liquid;
a device for measuring a quantity of the pressurized sterile working liquid injected and a quantity suctioned; and
regulating means for regulating the temperature of the pressurized sterile working liquid so that the temperature of the pressurized sterile working liquid is approximately equal to that of the human body.
2 Assignments
0 Petitions
Accused Products
Abstract
The liposuction apparatus (1) comprises in combination a tubular canula (3) having at its distal extremity (18) one or more suction orifices (24) and connected at its proximate extremity (19) to a suction source (14) in communication with these orifices, and a hand piece (2) delivering a spray of working liquid (4) under pressure. The hand piece delivers the spray of liquid under pressure using a conduit opening into an ejection orifice which, when the canula is attached to the hand piece, is located opposite an ejection orifice in the canula located at its distal extremity. A liposuction method using the apparatus is also taught. This invention is of interest to manufacturers and users of surgical equipment.
38 Citations
26 Claims
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1. A liposuction apparatus having a tubular cannula, an injection source for injecting liquid, a suction source, and a hand piece, wherein:
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the hand piece (2) is sterile, disposable and delivers at least one jet (4) of working liquid under pressure; the tubular cannula (3) being removable from the hand piece (2) to facilitate resterilization and reuse thereof, the tubular cannula has a first distal extremity (18) with at least one suction orifice (24) and at least one ejection orifice (23) spaced from the at least one suction orifice (24) for ejecting sterile working liquid under pressure and a second proximate extremity (19) which facilitates releasable attachment of the tubular cannula (3) to the hand piece (2), a side surface of the tubular cannula (3) comprises an area (27), extending on an angular sector of about 90°
, without any suction orifice;the suction source (14) communicates via a sterile disposable tube of the hand piece (2) with the suction orifice (24) at the first distal extremity (18); the injection source has a generator which generates pressurized sterile working liquid connected via a sterile disposable tube of the sterile disposable hand piece (2) with the ejection orifice (23) of the first distal extremity (18); a disposable reserve of the sterile working liquid supplies the generator with the working liquid; a device for measuring a quantity of the pressurized sterile working liquid injected and a quantity suctioned; and regulating means for regulating the temperature of the pressurized sterile working liquid so that the temperature of the pressurized sterile working liquid is approximately equal to that of the human body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 26)
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21. A liposuction apparatus having a tubular cannula, an injection source for injecting liquid, a suction source, and a hand piece, wherein the hand piece (2) is sterile, disposable and delivers at least one jet (4) of working liquid under pressure;
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the tubular cannula (3) being removable from the hand piece (2) to facilitate resterilization and reuse thereof, the tubular cannula has a first distal extremity (18) with at least one suction orifice (24) and at least one ejection orifice (23), spaced from the at least one suction orifice (24), for ejecting working liquid under pressure, and a second proximate extremity (19) which facilitates releasable attachment of the tubular cannula to the hand piece (2); the suction source (14) communicates, via a sterile disposable tube of the hand piece (2), with the suction orifice (24) at the first distal extremity (18); the injection source has a generator which generates pressurized sterile working liquid connected via a sterile disposable tube of the sterile disposable hand piece (2), with the ejection orifice (23) of the first distal extremity (18); a disposable reserve of the sterile working liquid supplies the generator with the working liquid; a device for measuring a quantity of the pressurized sterile working liquid injected and a quantity suctioned; regulating means for regulating the temperature of the pressurized sterile working liquid so that the temperature of the pressurized sterile working liquid is equal or nearly equal to that of the human body; and the tubular cannula (3) has at least first, second and third suction orifices (24), the first and second suction orifices are located laterally at a same level on either side of the tubular cannula, and the third suction orifice is located at a lower portion of the tubular cannula, offset from the first and second suction orifices toward the proximate extremity (19) of the tubular cannula.
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22. A liposuction method using a liposuction apparatus having a hand piece (2) which delivers at least one jet (4) of working liquid under pressure;
- a cannula (3) which is removable from the hand piece (2), via a proximate extremity (19) of the cannula, to facilitate resterilization and reuse thereof, the cannula has a distal extremity (18) with at least one suction orifice (24), for removing fatty tissue, and at least one ejection orifice (23), spaced from the at least one suction orifice (24), for ejecting working liquid under pressure;
a suction source (14) communicating with the suction orifice (24); and
an injection source generating a pressurized sterile working liquid and communicating with the ejection orifice (23);
the method comprising the following steps;making at least one incision in a patient'"'"'s epidermis; introducing the distal extremity (18) of the cannula (3) into the incision and injecting a predetermined volume of the working liquid containing a tumescent solution by one of a continuous and a pulsated jet of pressurized liquid; activating suction after waiting for a time required for the tumescent solution to act; and moving the cannula (3) in a back and forth motion while suctioning fat that has been emulsified by the working liquid through the at least one suction orifice (24) in the cannula. - View Dependent Claims (23, 24, 25)
- a cannula (3) which is removable from the hand piece (2), via a proximate extremity (19) of the cannula, to facilitate resterilization and reuse thereof, the cannula has a distal extremity (18) with at least one suction orifice (24), for removing fatty tissue, and at least one ejection orifice (23), spaced from the at least one suction orifice (24), for ejecting working liquid under pressure;
Specification