WO2023098321A1 - Pièce à main thérapeutique - Google Patents

Pièce à main thérapeutique Download PDF

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Publication number
WO2023098321A1
WO2023098321A1 PCT/CN2022/125879 CN2022125879W WO2023098321A1 WO 2023098321 A1 WO2023098321 A1 WO 2023098321A1 CN 2022125879 W CN2022125879 W CN 2022125879W WO 2023098321 A1 WO2023098321 A1 WO 2023098321A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
inlet
therapeutic
heat
bottom plate
Prior art date
Application number
PCT/CN2022/125879
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English (en)
Chinese (zh)
Inventor
姜明尧
Original Assignee
上海微创惟美医疗科技(集团)有限公司
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Publication date
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Publication of WO2023098321A1 publication Critical patent/WO2023098321A1/fr

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    • 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
    • A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present application relates to the technical field of medical devices, in particular to a therapeutic hand tool.
  • the traditional cryolipolysis technology refers to placing the treatment hand on the surface of the human skin to cool the local subcutaneous tissue to a lower target temperature. At the target temperature, the fat cells age in advance and undergo apoptosis successively, and are excreted to the body through metabolism. In vitro, so as to achieve the effect of weight loss.
  • the traditional therapeutic hand tool is generally shown in Figure 1, comprising a semiconductor cooling chip 10 for refrigeration, the semiconductor cooling chip 10 has a relative cold end and a hot end, and a device is provided to help the semiconductor cooling chip 10 dissipate heat corresponding to the hot end.
  • a cold conduction bottom plate 30 for transferring the cold generated by the peltier refrigerating sheet 10 is provided.
  • a therapeutic handpiece is provided.
  • a treatment hand comprising a semiconductor cooling sheet, a heat exchanger, and a cold conduction bottom plate, the heat exchanger is covered on one side of the semiconductor cooling sheet, and the cold conduction bottom plate is arranged on the other side of the semiconductor cooling sheet On the side, wherein, the heat exchanger has a hollow cavity, including an inlet and an outlet, the inlet and the outlet communicate to form a flow channel, and several protrusions arranged in a staggered manner are arranged in the flow channel.
  • the protrusion cooperates with the chamber wall of the heat exchanger to form a circuit.
  • the protrusions cooperate to form a loop.
  • the circuit includes at least one of a bifurcated circuit and a serpentine circuit.
  • the heat exchanger is provided with a slope structure, the slope structure is facing the inlet, and the angle between the slope structure and the axis of the inlet is about 25°-70° .
  • the projection in the axial direction of the inlet is located on the slope structure, and the area of the slope structure is about 1.44 times to 4 times the area of the inlet.
  • the distance from the inlet to the slope structure along its axis is about 1/3-1/2 of the distance from the inlet to the chamber wall of the heat exchanger along its axis.
  • the treatment handpiece further includes a heat-insulating connecting piece, and the heat exchanger is connected to the cold-conducting bottom plate through the heat-insulating connecting piece.
  • the treatment handpiece further includes a connecting piece and a thermal insulation pad
  • the heat exchanger is connected to the cold conducting bottom plate through the connecting piece
  • the connecting piece forms a connection portion with the cold conducting bottom plate
  • the heat insulating pad is arranged on the connection part.
  • the treatment hand tool further includes a thermal insulation receiving part, which connects the heat exchanger and the cold conduction bottom plate, and the thermal insulation receiving part is provided with a connecting structure for connecting other components .
  • the rotary connector includes a first leaflet and a second leaflet respectively arranged on adjacent cooling bottom plates, and a positioning pin, and an arc-shaped stroke limiter is provided on the first leaflet slot, and the positioning pin passes through the travel limiting slot and is fixed with the second hinge.
  • At least one heat exchanger is provided on each of the cold conduction bottom plates, and several heat exchangers communicate with each other.
  • Fig. 1 is the schematic diagram of treatment handpiece in the traditional technology
  • Fig. 2 is an exploded schematic diagram of the therapeutic handpiece of the present application in some embodiments
  • Fig. 3 is a schematic diagram of the heat exchanger of the therapeutic handpiece of the present application in some embodiments.
  • Fig. 4 is another schematic diagram of the heat exchanger of the therapeutic handpiece of the present application in some embodiments.
  • Fig. 5 is a schematic diagram when there are multiple cold-conducting bottom plates of the therapeutic handpiece of the present application in some embodiments;
  • Fig. 6 is a schematic diagram of the rotating connector of the therapeutic handpiece of the present application in some embodiments.
  • Fig. 7 is a schematic diagram of the configuration of the heat exchanger when there are multiple cold-conducting bottom plates of the therapeutic handpiece of the present application in some embodiments;
  • 10 is a semiconductor cooling plate
  • 20 is a heat exchanger
  • 21 is a thermal insulation receiving part
  • 23 is a thermal insulation connector
  • 24 is a thermal insulation pad
  • 201 is an upper shell
  • 202 is a lower shell
  • 203 is an inlet
  • 204 is an outlet
  • 205 is a slope structure
  • 206 is a protrusion
  • 208 is a circuit
  • 2081 is a bifurcated circuit
  • 2082 is a serpentine circuit
  • 30 is a cooling bottom plate
  • 40 is a shell
  • 50 is a rotating connector
  • 51 is a first hinge
  • 52 is the second loose-leaf
  • 53 is a positioning pin
  • 511 is a travel limit groove
  • 521 is a positioning hole.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • FIG. 2 shows an exploded schematic view of a treatment handpiece in an embodiment of the present application
  • the treatment handpiece includes a heat exchanger 20, a semiconductor refrigeration sheet 10, and a cold conduction bottom plate 30 stacked in sequence.
  • the heat exchanger 20 is connected and covered on one side of the semiconductor refrigerating sheet 10, and is used to take away the heat of the semiconductor refrigerating sheet 10.
  • the cooling effect of the semiconductor cooling chip 10 is transmitted to the outside.
  • the heat exchanger 20 is a hollow cavity as shown in FIG. 3, including an inlet 203 and an outlet 204.
  • the inlet 203 and the outlet 204 are connected to form a flow channel, and a plurality of staggered protrusions are arranged in the flow channel. from 206.
  • the treatment handpiece of the present application improves the heat exchanger 20 by setting dispersed staggered protrusions 206 in the flow channel. 206 blocking and shunting to both sides of the protrusions 206, and because several protrusions 206 are arranged in a staggered manner, the shunt flow formed by the coolant bypassing each protrusion 206 will interfere with each other, and will be separated by mutual impact. Therefore, the flow form of the cooling liquid is converted into turbulent flow, which promotes the cooling liquid to mix evenly and flow through the entire area of the flow channel at a uniform and stable flow rate. There is no flow dead zone, and local overheating of the heat exchanger 20 is avoided. Cold or localized overheating conditions.
  • the flow direction of the cooling liquid in the heat exchanger 20 will change continuously, for example, between the vertical direction and the horizontal direction. If the protrusion 206 is not provided, the cooling liquid will The flow rate of the flow rate will vary greatly due to the different use scenarios of the therapeutic handpiece, resulting in a significant difference in the time it takes for the cooling liquid to pass through the flow channel of the heat exchanger 20, and too long or too short a time is not conducive to the heat exchange of the heat exchanger 20.
  • the heat exchanger 20 of the therapeutic handpiece of the present application is provided with a plurality of staggered protrusions 206 in the flow channel, on the one hand, the flow distance of the cooling liquid in the heat exchanger 20 is significantly increased compared with the traditional technology, This makes even though the flow rate of the cooling liquid changes due to different use scenarios of the therapeutic handpiece, the passage time of the faster flow rate cooling liquid is not much different from the passage time of the slower flow rate cooling liquid after the flow distance is significantly increased; on the other hand , the setting of the protrusion 206 makes the cooling liquid have a suitable flow resistance during the flow process.
  • the flow resistance of the cooling liquid is positively related to the flow rate, so even if the flow rate of the cooling liquid increases due to different usage scenarios of the therapeutic handpiece, Since the flow resistance increases correspondingly, the flow rate of the cooling liquid will not be significantly different in fact, that is, the flow rate of the cooling liquid will not change significantly in the same time, and the flow rate of the cooling liquid in the heat exchanger 20 may be Control, and finally make the cooling liquid flow through the heat exchanger the same length of time.
  • the present application ensures a relatively stable cooling effect of the heat exchanger 20 by setting several staggered protrusions 206 in the flow channel of the heat exchanger, so that the treatment handpiece can be used in different usage scenarios. The effect tends to be consistent.
  • the protrusion 206 can be in various shapes. As shown in FIG. 3 , in some embodiments, the protrusion 206 may be a cylindrical protrusion. Or, in some embodiments as shown in FIG. 4 , the protrusion 206 cooperates with the cavity wall of the heat exchanger 20 or other protrusions 206 to form a loop 208, so that the original flow channel can be re-divided, so that The length of each new flow channel is appropriate, and the flow resistance meets the design requirements. Not only that, during the flow of the cooling liquid, it will generate a boundary layer near the wall of the flow channel, and the temperature of the boundary layer is higher than that of the liquid inside the boundary layer.
  • the boundary layer of the cooling liquid is constantly peeled off during the flow process, and the boundary layer of the cooling liquid is constantly mixed with the liquid inside, so as to fully exert the heat exchange capacity of the cooling liquid and prevent the liquid inside the cooling liquid from being depleted.
  • the low temperature is still maintained in contact with the heat source, resulting in insufficient heat exchange by the heat exchanger 20 .
  • the circuit 208 includes a bifurcated circuit 2081 .
  • protrusions 206 are further set on the loops 208, so that each loop 208 is separated by the protrusions 206 again to form several sub-loops, and even the protrusions 206 can be further set in the sub-loops to separate the sub-loops.
  • the loop 208 may also include a serpentine loop 2082 , that is, part of the loop 208 is meandering to form a serpentine shape.
  • the specific positions of the inlet 203 and the outlet 204 of the heat exchanger 20 in the present application are not limited.
  • the heat exchanger 20 of the present application includes an upper shell 201 and a lower shell 202.
  • the inlet 203 is arranged vertically on the upper casing 201, and the outlet 204 is arranged horizontally. In this part of the embodiment, the distance between the inlet 203 and the cavity wall of the heat exchanger 20 facing it is too close, that is, the distance between the inlet 203 and the cavity wall of the lower housing 202 is too close.
  • a slope structure 205 is provided inside the heat exchanger 20, and the slope structure 205 faces the inlet 203.
  • the slope structure The included angle between the axis of 205 and the inlet 203 is 25-70°. In this way, after the cooling liquid enters the heat exchanger 20 from the inlet 203 , the cooling liquid will contact the slope structure 205 and turn around, thereby reducing its pressure loss.
  • the projection on the axial direction of the inlet 203 is located on the slope structure 205, and the area of the slope structure 205 is 1.44-4 times the area of the inlet 203.
  • the distance from the inlet 203 to the slope structure 205 along its axis is 1/3-1/3 of the distance from the inlet 203 to the cavity wall of the heat exchanger 20 along its axis. 2.
  • the slope structure 205 is concave arc-shaped. Compared with the straight line or upward convex arc slope structure 205 , this slope structure 205 can conveniently adjust the flow rate and pressure of the cooling liquid entering the heat exchanger 20 from the inlet 203 .
  • the heat exchanger 20 when the heat exchanger 20 is a cuboid with a length of 80mm-100mm, a width of 40mm-70mm, and a height of 8mm-15mm, the length and width of the protrusion 206 provided in the heat exchanger 20 1.5mm-3mm, the distance between adjacent protrusions 206 is 3mm-5mm, the inlet 203 of the heat exchanger 20 is arranged in the height direction of the heat exchanger 20, and the distance between it and the slope structure 205 When it is 3mm-7mm, if the flow rate of the coolant is 0.5L/min-1.5L/min, the pressure loss of the heat exchanger 20 is about 2kPa-5kPa.
  • the pressure loss of the heat exchanger 20 of the therapeutic handpiece of the present application is reduced by 10-30%; the difference between the maximum and minimum temperature on the surface of the heat exchanger 20 is reduced from 0.6-0.9°C to 0.2-0.4°C , help to improve the cooling effect of the cold end of the semiconductor refrigeration chip 10.
  • the treatment handpiece of the present application further includes a heat insulating connecting piece 23, the heat insulating connecting piece 23 has good heat insulation, and the heat exchanger 20 communicates with the cold conduction through the heat insulating connecting piece 23.
  • the bottom plate 30 is connected. In this way, the heat exchanger 20 and the cold conduction bottom plate 30 are indirectly connected through the heat-insulating connecting piece 23, so as to block the heat of the heat exchanger 20 from being transferred to the cold conduction bottom plate 30 as much as possible, so as to prevent the treatment of the treatment handpiece described in this application. The effect is adversely affected.
  • the heat insulating connecting member 23 has various implementation forms. As shown in FIG. 2 , in some embodiments, the heat insulating connecting member 23 may be a bolt made of heat insulating material. Since the heat exchanger 20 and the cold conduction bottom plate 30 are only connected by bolts, the heat transfer is basically blocked, so that the heat of the heat exchanger 20 and the cold conduction bottom plate 30 will not be transferred to each other. In some other embodiments, the heat-insulating connecting piece 23 may also be a clamping piece made of heat-insulating material, so that the heat exchanger 20 and the cold-conducting bottom plate 30 form a clamping connection.
  • the heat insulating connector 23 can also be in other forms, and those skilled in the art can choose the specific form of the heat insulating connector 23 according to actual needs, and details will not be repeated here. It can be understood that the thermal insulation material described in this application can be a common material with good thermal insulation and easy processing in the market, such as high-density polyethylene (HDPE) or polyoxymethylene (POM) or nylon (PA).
  • HDPE high-density polyethylene
  • POM polyoxymethylene
  • PA nylon
  • the therapeutic handpiece of the present application may also include a thermal insulation pad 24, and the heat exchanger 20 is connected to the cold-conducting bottom plate 30 through a conventional connecting piece, such as a metal bolt. connection, the heat insulating pad 24 is arranged at the mechanical connection part, such as the screw connection part. In this way, the heat insulating pad 24 blocks the heat transfer between the metal bolts and the cold conduction base plate 30, and also increases the resistance on the heat conduction path between the heat exchanger 20 and the cold conduction base plate 30, so as to ensure the temperature of the cold conduction base plate 30 as much as possible. relatively independent.
  • the therapeutic handpiece of the present application may further include a heat-insulating receiving member 21 made of a heat-insulating material, and one end of the heat-insulating receiving member 21 is used to connect the heat exchanger 20 to the The cold-conducting bottom plate 30 is connected, and the other end thereof is used for connecting other components in the treatment handpiece.
  • a heat-insulating receiving member 21 made of a heat-insulating material
  • one end of the heat-insulating receiving member 21 is used to connect the heat exchanger 20 to the The cold-conducting bottom plate 30 is connected, and the other end thereof is used for connecting other components in the treatment handpiece.
  • one end of the heat-insulating receiving member 21 is provided with a thread
  • the other end is provided with a screw hole
  • the screw hole is used for threaded connection between other components and the heat-insulating receiving member 21 .
  • the further component can be, for example, the housing 40 of the treatment handpiece. In this way, the shell 40, the heat exchanger 20 and the cold conduction bottom plate 30 are
  • each cold-conducting bottom plate 30 of the therapeutic handpiece of the present application there may be more than one cold-conducting bottom plate 30 of the therapeutic handpiece of the present application, and several cold-conducting bottom plates 30 are connected to each other through a rotating joint 50, so that each cold-conducting base plate The bottom plate 30 can rotate relative to the adjacent cooling bottom plate 30 . In this way, the treatment range of the treatment handpiece will be expanded from the plane to the three-dimensional, and the three-dimensional structure such as the thigh can be treated.
  • the rotating connector 50 includes a first hinge 51 , a second hinge 52 and a positioning pin 53 installed on the adjacent cooling bottom plate 30 respectively.
  • a leaf 51 is provided with an arc-shaped stroke limiting groove 511 , and the positioning pin 53 passes through the stroke limiting groove 511 and is fixed to the second leaf 52 . It can be seen from the above description that the status of the first hinged leaf 51 and the second hinged leaf 52 are the same, and the installation positions of the first hinged leaf 51 and the second hinged leaf 52 can be exchanged without affecting the realization of the rotating function. 50 does not need to consider the corresponding installation position during installation, and the installation process is easier.
  • the positioning pin 53 can connect the first hinged leaf 51 and the second hinged leaf 52, and the relative rotation of the first hinged leaf 51 and the second hinged leaf 52 can be constrained by limiting the sliding range of the positioning pin 53 by the stroke limiting groove 511. angle.
  • the second hinge 52 is provided with a positioning hole 521, and the positioning hole 521 is provided with an internal thread, and the part of the positioning pin 53 corresponding to the stroke limiting groove 511 is The polished rod, the part of the positioning pin 53 corresponding to the positioning hole 521 is provided with an external thread, and the positioning pin 53 is threadedly connected with the positioning hole 521 of the second hinge 52 .
  • the aforementioned rotating connector 50 uses materials with good mechanical strength and good cold conductivity.
  • the rotating connector 50 is made of 304 stainless steel. Since the cold conduction bottom plate 30 is mostly made of aluminum and its alloys, which have good cold conduction properties, and although the cold conduction performance of 304 stainless steel is slightly worse than that of aluminum, its strength is significantly higher than that of aluminum and its alloys. 50 can ensure the uniformity of the cooling capacity of several cooling base plates 30 while taking into account the strength, so as to realize a uniform therapeutic effect.
  • each cold conduction bottom plate 30 is provided with at least one heat exchanger 20 .
  • several heat exchangers 20 can be connected with each other by using hoses, etc., so that the heat exchange efficiency of several heat exchangers 20 can be ensured to be close, so that each conduction The cooling capacity of the cold bottom plate 30 is close to each other, so as to achieve a uniform therapeutic effect.
  • the therapeutic hand tool of the present application by improving the heat exchanger 20, can fully take away the heat of the semiconductor cooling chip 10, thereby ensuring that the cooling bottom plate 30 has a good cooling effect, making the The treatment handpiece of the present application can achieve the target treatment effect.
  • the heat transfer between the heat exchanger 20 and the cold conduction bottom plate 30 is blocked by adding the heat insulating connector 23 , which further ensures that the cooling effect of the cold conduction bottom plate 30 will not be disturbed.
  • the connection strength of adjacent cold-conducting bottom plates 30 is improved, and a certain amount of heat transfer can be carried out between adjacent cold-conducting bottom plates 30.
  • the cold energy is transferred, so as to ensure that the cooling effects of the several cold-conducting bottom plates 30 of the treatment handpiece described in the present application are close to each other, so as to achieve a unified treatment effect.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Otolaryngology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Vascular Medicine (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

L'invention concerne également une pièce à main thérapeutique, comprenant une feuille de réfrigération à semi-conducteur (10), un échangeur de chaleur (20) et une plaque inférieure de conduction à froid (30), l'échangeur de chaleur (20) recouvre un côté de la feuille de réfrigération à semi-conducteur (10), et la plaque inférieure de conduction à froid (30) est disposée sur l'autre côté de la feuille de réfrigération à semi-conducteur (10) ; et l'échangeur de chaleur (20) présente une chambre creuse et comprend une entrée (203) et une sortie (204), l'entrée (203) étant en communication avec la sortie (204) pour former un canal d'écoulement, dans lequel plusieurs saillies (206) sont disposées en quinconce.
PCT/CN2022/125879 2021-12-03 2022-10-18 Pièce à main thérapeutique WO2023098321A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111468608.3 2021-12-03
CN202111468608.3A CN116211439A (zh) 2021-12-03 2021-12-03 治疗手具

Publications (1)

Publication Number Publication Date
WO2023098321A1 true WO2023098321A1 (fr) 2023-06-08

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Application Number Title Priority Date Filing Date
PCT/CN2022/125879 WO2023098321A1 (fr) 2021-12-03 2022-10-18 Pièce à main thérapeutique

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CN (1) CN116211439A (fr)
WO (1) WO2023098321A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130245729A1 (en) * 2012-03-13 2013-09-19 Medical Technology Inc. Cold therapy systems and methods
CN203425031U (zh) * 2013-09-09 2014-02-12 北京宏强富瑞技术有限公司 冷冻溶脂术手具
US20160270951A1 (en) * 2015-03-17 2016-09-22 Cryotech Nordic Ou Handpiece assembly for an apparatus used in cosmetic treatment
CN206151666U (zh) * 2016-07-19 2017-05-10 南京艾威奇医疗器械有限公司 一种用于冷冻减肥的手柄及减肥仪器
CN206556305U (zh) * 2016-12-30 2017-10-13 上海法诺光电技术有限公司 一种手具制冷系统
CN112674926A (zh) * 2019-10-17 2021-04-20 微创医美科技(嘉兴)有限公司 一种冷冻溶脂施用器及包含该施用器的冷冻溶脂装置
CN112781270A (zh) * 2021-02-22 2021-05-11 广东美的环境电器制造有限公司 半导体换热器和制冷设备
CN217286033U (zh) * 2021-12-03 2022-08-26 上海微创惟美医疗科技(集团)有限公司 治疗手具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130245729A1 (en) * 2012-03-13 2013-09-19 Medical Technology Inc. Cold therapy systems and methods
CN203425031U (zh) * 2013-09-09 2014-02-12 北京宏强富瑞技术有限公司 冷冻溶脂术手具
US20160270951A1 (en) * 2015-03-17 2016-09-22 Cryotech Nordic Ou Handpiece assembly for an apparatus used in cosmetic treatment
CN206151666U (zh) * 2016-07-19 2017-05-10 南京艾威奇医疗器械有限公司 一种用于冷冻减肥的手柄及减肥仪器
CN206556305U (zh) * 2016-12-30 2017-10-13 上海法诺光电技术有限公司 一种手具制冷系统
CN112674926A (zh) * 2019-10-17 2021-04-20 微创医美科技(嘉兴)有限公司 一种冷冻溶脂施用器及包含该施用器的冷冻溶脂装置
CN112781270A (zh) * 2021-02-22 2021-05-11 广东美的环境电器制造有限公司 半导体换热器和制冷设备
CN217286033U (zh) * 2021-12-03 2022-08-26 上海微创惟美医疗科技(集团)有限公司 治疗手具

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