KR102443152B1 - Cannula for fat inhalalation - Google Patents

Abstract

A medical cannula comprising: an insertion unit inserted into a body to suck fat from a fat layer in the body through one or more suction ports; a body in the form of an empty tubular body, in which the fat introduced through the insertion unit moves; and a fastening part connected to the main body and connected to a temperature controller having a cooling or heating function, wherein the fastening part, the main body and the insertion part are cooled or heated by the temperature controller. is provided

Description

CANNULA FOR FAT INHALALATION

The present invention relates to a cannula for medical use, and more particularly, to a cannula for liposuction that is inserted into a specific part of the body to suck or inject fat.

In recent years, the obese population has been steadily increasing due to lack of diet and exercise. In particular, obesity is one of the diseases, and it is also a cause of various adult diseases such as arteriosclerosis and diabetes.

In addition to the treatment of these obese patients, liposuction for cosmetic purposes is widely used as interest in body shape and appearance increases. Liposuction is a procedure that artificially removes excess fat from the body.

This liposuction is a method of suctioning and removing fat cells by generally inserting a cannula having a pipe shape into the fat layer in the body and moving it in the front and rear directions. On the other hand, liposuction is a procedure in which fat is injected into a part of the body that lacks fat.

A cannula is a tube inserted into the body mainly for these medical purposes, and is a kind of medical device for allowing liquid or air to pass through. A cannula is a thin tube-shaped tube that is inserted to inject drugs into the body or to withdraw body fluids. It is used to take out cold fluid from the chest or abdominal cavity, insert it into a blood vessel to collect blood, or insert it into the trachea for breathing during tracheotomy. is the instrument used.

In particular, in the fat grafting procedure, a thin metal cannula is used for fat collection or fat injection. Compared to general medical needles, the tip is blunt, minimizing damage to other tissues such as blood vessels, muscle layer, and skin layer, so there is no bruising.

However, in the case of liposuction using a conventional cannula, the operator inserts the cannula into the fat layer of the patient's body, and then the operator inserts the cannula into the fat layer of the patient in order to evenly suck the fat in the skin or along the fat area to be sucked in the skin. By moving the cannula back and forth or left and right, the fat cells are separated and destroyed, while the area where fat is accumulated is intensively treated.

Korean patent application (application number: 10-2013-0104582 (2013.09.02)) A cannula having a temperature sensor mounting hole includes a main body, a housing disposed on the rear end of the main body and forming a mounting groove on the upper side, the support block and An outer tube passing through the housing and provided with a tip for suction or liposuction at the front end, an inner tube inserted into the outer tube, and fluid or suctioned through the tip coupled to the rear end of the body and an insulator in which a contact pin for allowing fat to flow and having an interface structure with an external device is formed, and forming a forming groove in the longitudinal direction on an inner circumferential surface of the outer tube adjacent to the inner tube, It provides a cannula to which a temperature sensor is mounted, which is connected to the contact pin of the insulator by a harness in the mounting groove and includes a temperature sensor for measuring the temperature of the treatment site according to the generation of high frequency.

And the Korean patent application (application number 2010-0138482 (application date: December 30, 2010)) intelligent liposuction cannula is formed as a tube with an empty inside, and a plurality of suction ports are formed at the tip, and the fat is dissolved on the outer peripheral surface for suction. a cannula that generates a high frequency to facilitate this, and determines the treatment site by measuring the impedance through the high frequency; a temperature sensor installed inside the cannula to measure the temperature of the treatment site according to the generation of high frequency; and a handpiece to which the cannula is coupled. It relates to an intelligent liposuction cannula comprising a.

Korean Patent Application No. 10-2013-0104582 Korean Patent Application No. 10-2010-0138482

According to an embodiment of the present invention, it is an object to provide a cannula capable of temperature control. According to an embodiment of the present invention, when performing liposuction through a cannula tube, for example, the cannula is maintained at a low temperature or a temperature suitable for the procedure is to be set by the operator. In addition, it is intended to maximize the effect of treatment by controlling the temperature of the cannula.

Among the embodiments, there is provided a medical cannula, comprising: an insertion unit inserted into the body to suck fat from a fat layer in the body through one or more suction ports; a body in the form of an empty tubular body, in which the fat introduced through the insertion unit moves; and a fastening part connected to the main body and connected to a temperature controller having a cooling or heating function, wherein the fastening part, the main body and the insertion part are cooled or heated by the temperature controller. is provided

Here, the temperature controller further comprises a temperature setting unit receiving a user signal for setting the temperature of the insertion unit, wherein the temperature control unit cools or heats the insertion unit according to the temperature input to the temperature setting unit do.

In addition, the temperature controller may be connected to the fastening part to control the temperature of the fastening part, the main body, and the insertion part.

In addition, the fastening part is coupled to a fixed handpiece to be gripped by the operator during liposuction, and the temperature controller may be included in the handpiece.

In addition, in an embodiment of the present invention, a cannula partially inserted into the body for liposuction; a handpiece coupled to the rear end of the cannula in contact with the cannula; and a temperature controller connected to the cannula to control the temperature of the cannula by heating or cooling the cannula.

Wherein the cannula is inserted into the body through one or more suction ports to suck the fat from the fat layer in the body; a body in the form of an empty tubular body, in which the fat introduced through the insertion unit moves; and a fastening part located at the rear end of the main body and connected to the temperature controller and the hand piece.

In addition, the temperature controller may further include a temperature setting unit receiving a user signal for setting the temperature of the insertion unit, and the temperature control unit may cool or heat the insertion unit according to the temperature input to the temperature setting unit.

In addition, the temperature controller may be mounted on the handpiece.

And the temperature setting unit may be mounted on the handpiece.

In addition, at least one of the handpiece or the temperature controller may further include a temperature display unit for displaying the temperature of the cannula.

The disclosed technology may have the following effects. However, this does not mean that a specific embodiment should include all of the following effects or only the following effects, so the scope of the disclosed technology should not be construed as being limited thereby.

According to an embodiment of the present invention, it is an object of the present invention to provide a cannula capable of temperature control. When performing liposuction through a cannula tube, for example, the cannula may be kept at a low temperature or a temperature suitable for the procedure may be set. In particular, when the cannula is maintained at a low temperature for treatment, the effect of cryotherapy or cryogenic treatment can be expected. In addition, it can be expected that the treatment effect will increase through the temperature control of the cannula.

1 is a view showing a cannula for liposuction according to an embodiment of the present invention.
Figure 2 is a view showing a cannula temperature control device according to an embodiment of the present invention.
Figure 3 is a view showing a cannula temperature control device according to an embodiment of the present invention.
4 is a view showing a liposuction procedure using a cannula temperature control device according to an embodiment of the present invention.

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment is capable of various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

On the other hand, the meaning of the terms described in the present application should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. On the other hand, other expressions describing the relationship between elements, that is, "between" and "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood to include the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the embodied feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

Identifiers (eg, a, b, c, etc.) in each step are used for convenience of description, and the identification code does not describe the order of each step, and each step clearly indicates a specific order in context. Unless otherwise specified, it may occur in a different order from the specified order. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

In addition, it will be appreciated that the application is not limited to the details of the construction and arrangement of components described in the following detailed description or shown in the drawings. The invention is capable of being embodied and practiced in other embodiments and of being carried out in various ways. Also, device or element orientation (eg, “front”, “back”, “up”, “down”, “top”, “bottom”) The expressions and predicates used herein with respect to terms such as ", "left", "right", "lateral", etc. are used merely to simplify the description of the invention, and the associated apparatus Or it will be appreciated that it does not simply indicate or imply that an element must have a particular orientation. Also, terms such as “first,” “second,” and “third” are used in this application and the appended claims for purposes of explanation and are intended to indicate or imply relative importance or spirit. not intended

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Terms defined in the dictionary should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present application.

A cannula according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .

1 is a view showing a cannula for liposuction according to an embodiment of the present invention. 2 and 3 are views showing a liposuction device according to an embodiment of the present invention. The cannula 100 for liposuction according to an embodiment of the present invention may be used in connection with a liposuction device 10 as shown in FIG. 2 and the like. 4 is a view showing a cannula temperature control device according to another embodiment of the present invention.

The liposuction device 10 according to the embodiment of the present invention includes a cannula 100 according to an embodiment of the present invention, a handpiece 110 capable of handling a surgical site in which an operator holds and a cannula is inserted, and a handpiece ( 110), the tube 120 is mounted on the rear end and communicates with the fat, and is a passage for the fat sucked from the body to move to the collection space, and the suction power is provided to collect the fat separated from the body 130 includes

In addition, the cannula 100 according to the embodiment of the present invention is inserted into the body and provided with one or more suction ports through which fat is sucked from the fat layer 20 in the body. It may include a fastening part 230 coupled to the moving body 220 and the handpiece 110 to physically connect the cannula 100 to the inhaler 130 through this.

The cannula 100 penetrates the skin and is inserted into the skin. In particular, in the case of liposuction, it is inserted up to the fat layer 20 inside the skin and then moves back and forth or left and right to separate and destroy fat cells. . In addition, since repeated insertions are made during fat or filler transplantation, procedures such as liposuction may puncture blood vessels, causing bleeding and bruising, and may entail damage or rupture of skin tissue.

That is, in a state in which the operator inserts the cannula 100 into the skin, the fat dissolved by the drug is moved and separated by the handpiece 110, and then is sucked through the insertion part 210 of the cannula 100, and the fat is It is strongly sucked by the suction power provided by the inhaler 130 and moves through the tube 120 and is stored in a separate storage in the inhaler 130 .

Therefore, liposuction may be accompanied by bleeding, bruising, pain and inflammation in the patient's treatment area. Recently, cryogenic therapy has been used to inhibit inflammatory reaction-inducing enzymes, to reduce or block pain nerve transmission, to relieve scars after surgery, to relieve edema and blood flow, and the like. In addition to this, cryogenic treatment has advantages such as maximizing self-healing ability, relaxation or elongation of muscle fibers, promotion of blood flow or lymph circulation, recovery of joint flexion angle, and shortening of rehabilitation treatment time.

At this time, if the temperature of the cannula 100 is controlled, that is, when the cannula 100 is cooled to a low temperature or cryogenic temperature to perform liposuction, some of the effects of cooling treatment can be obtained, thereby reducing these side effects. For example, in the case of cryogenic treatment that has been recently carried out, cooling treatment is sometimes performed by injecting liquefied CO ₂ gas to the lesion site and inducing a cryogenic state of -78°C safely locally within a short period of time. In this case, the effect of inducing rapid self-healing and pain treatment can be obtained by promoting blood flow and lymphatic system circulation in the lesion site, discharging inflammatory substances, reducing swelling, and stabilizing the tissue.

Therefore, when liposuction is performed by cooling the cannula 100 to such a low temperature or cryogenic state at the treatment site through which the cannula 100 penetrates and liposuction is performed, some effects of cryogenic treatment or cooling treatment can be expected, and liposuction It can help to enhance the effect of the procedure and shorten the recovery period after the procedure.

Referring to FIG. 2 , there is a handpiece 110 connected to the cannula 100 , and a temperature controller 115 is connected to the cannula 100 or the handpiece 110 . The temperature controller 115 may have a cooling or heating function. According to an embodiment of the present invention, the temperature controller 115 may have a cryogenic or low temperature cooling function. In addition, the temperature controller 115 includes a temperature setting unit 117 according to an embodiment, so that the user can directly set the temperature of the cannula 100 .

According to the embodiment shown in FIG. 2 , the temperature controller 115 is connected to the cannula 100 by being connected to the fastening part 230 of the cannula 100 or the most front end of the handpiece 110 , the cannula 100 . can be cooled or heated. For example, when the temperature controller 115 cools the cannula 100, the cannula 100 may be cooled by a heat conduction phenomenon in the order of the fastening part 230 - the main body 220 - the insertion part 210, and the patient The portion of the cannula 100 in contact with the treatment site of the operator reaches the desired temperature.

The temperature controller 115 may be connected to the cannula as a separate device through a connection line as shown in FIG. 2 , or may be miniaturized and mounted on the handpiece 110 as in the embodiment shown in FIG. 3 . That is, the temperature controller 115, that is, a low-temperature treatment device or a cooler is installed at the most front end of the handpiece 110 in direct contact with the fastening part 230, so that the cannula 100 can be cooled.

The temperature controller 115 may cool the cannula 100 using a gas such as cooled liquid nitrogen or carbon dioxide. Alternatively, various materials such as liquid helium, prawn refrigerant, hydrocarbon, etc. may be used as the refrigerant.

At this time, the cooled cannula may have a temperature range of 0 degrees Celsius or less, -100 degrees Celsius or more, and preferably, it may have a temperature range of 0 degrees Celsius or less, minus 50 degrees Celsius or more. And in order to prevent frostbite caused by the cooled cannula coming into direct contact with the skin tissue of the human body, an insulator may be inserted prior to the cannula. Therefore, an embodiment of the present invention may further include an insulator in the form of roundly surrounding the cannula, and the temperature of the insulator is not cooled even by the cannula temperature control device according to the embodiment of the present invention. Since the insulator is in contact with the human skin and the cannula is inserted into the incision, the cryogenic cannula does not directly contact the skin, thereby preventing skin frostbite.

Referring to FIG. 4 , the temperature controller 115 and the temperature display unit 119 mounted on the handpiece 110 are shown. The temperature display unit 119 may display the temperature set by the operator and/or the current temperature of the cannula 100 .

When the temperature of the cannula 100 is lowered by the temperature controller 115 in contact with the fastening part 230, the thermal conductivity or thermal conductivity of the cannula 100 together with the cooling performance of the temperature controller 115 is determined by the liposuction device. (10) can influence the therapeutic performance.

If Q is the energy transferred through the plate from the hot side to the cold side during time t, then the energy transferred per unit time is called thermal conductivity or simply conductivity.

The above definition can be simply expressed as an expression as follows.

[Equation 1]

P = Q/t = kA(T _H - T _C )/L

where P is the thermal conductivity, T _H is the temperature of the high-temperature storage, T _C is the temperature of the low-temperature storage, A is the area of the transferred plate, Q is the energy transferred in the form of heat, L is the thickness of the transferred plate, t is the time for heat transfer and k is the thermal conductivity. Thermal conductivity k is a constant as it has different properties for each material.

The thermal conductivity of the material varies within a certain range depending on the temperature, such as graphene 4800-5300, diamond 900-2300, silver 429, copper 400, gold 318, aluminium 237 iron 80, stainless steel 12-45, etc.

The larger the area of the transferred plate and the greater the difference between the temperature of the high-temperature heat storage and the low-temperature storage, the greater the thermal conductivity. On the other hand, the longer the thickness of the transferred plate, the smaller the thermal conductivity. k is a constant for a substance that indicates the degree of heat transfer.

Therefore, when a material that has high thermal conductivity, is suitable for medical use, and can be molded to a thin thickness, is used as the material of the cannula 100, an improvement in treatment performance through the temperature control cannula 100 can be expected.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be done.

10: liposuction device
100: cannula
110: handpiece
115: thermostat
120: tube
130: inhaler
210: insertion part
220: body
230: fastening part

Claims (9)

A medical cannula comprising:
an insertion unit inserted into the body to suck fat from the fat layer in the body through one or more suction ports;
a body in the form of an empty tubular body, in which the fat introduced through the insertion unit moves;
a fastening part connected to the main body; and
It is connected to the fastening part and includes a temperature controller having a cryogenic or low temperature cooling function to control the temperature of the fastening part, the main body and the insertion part,
the temperature controller
and a temperature setting unit receiving a user signal for setting the temperature of the insertion unit, and cooling the insertion unit according to the temperature input to the temperature setting unit,
A cannula for liposuction, characterized in that by using a cooled gas or refrigerant to cool the cannula to a temperature range of 0°C to -100°C to perform liposuction.
delete delete According to claim 1,
The fastening part is coupled to a fixed handpiece so that the operator can hold it during liposuction,
The temperature controller is a cannula for liposuction, characterized in that included in the handpiece. a cannula partly inserted into the body for liposuction;
a handpiece coupled to the rear end of the cannula in contact with the cannula; and
A temperature controller for controlling the temperature of the cannula by cooling the cannula to a temperature range of 0 degrees Celsius to -100 degrees Celsius using a cooled gas or refrigerant,
wherein the cannula is
an insertion unit inserted into the body to suck fat from the fat layer in the body through one or more suction ports;
a body in the form of an empty tubular body, in which the fat introduced through the insertion unit moves; and
It is located at the rear end of the main body and includes a fastening part connected to the temperature controller and the hand piece,
Cannula temperature control device, characterized in that the cooling by the heat conduction phenomenon in the order of the fastening portion, the main body and the insertion portion. 6. The method of claim 5,
The temperature controller further includes a temperature setting unit receiving a user signal for setting the temperature of the insertion unit,
The temperature controller cannula temperature control device, characterized in that for cooling the insert in accordance with the temperature input to the temperature setting unit. 6. The method of claim 5,
The temperature controller is a cannula temperature control device, characterized in that mounted on the handpiece. 7. The method of claim 6,
The temperature setting unit cannula temperature control device, characterized in that mounted on the handpiece. 6. The method of claim 5,
At least one of the handpiece or the temperature controller further comprises a temperature display unit for displaying the temperature of the cannula.

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