Based on liquid co for preventing nozzle frosting 2 Rapid cooling device for flash spray

Abstract

The invention discloses a nozzle frosting prevention based rapid cooling device for liquid CO2 flash mist spray. The device comprises a high-pressure nitrogen gas cylinder, a high-pressure carbon dioxide storing tank, a cooling circulating system, a solenoid valve and a nozzle, wherein an outlet of the high-pressure nitrogen gas cylinder is connected to an inlet of the carbon dioxide storing tank;the outlet of the carbon dioxide storing tank is connected to one end of a high-pressure hose; a middle section of the pass of the high-pressure hose is connected to tube side inlet of a sleeve typeheat exchanger; a tube side outlet of the sleeve type heat exchanger is connected to the high-pressure hose; the other end of the high-pressure hose is connected to the solenoid valve; a stainless straight-tube type double-liquid nozzle provided with a heat insulated vacuum layer is mounted at the output end of the solenoid valve. The device can be matched with a laser probe of any laser to use, and the purpose of efficiently and selectively cooling normal epidermal tissue of a patient in a vascular and pigmented skin diseases laser operation can be achieved; the heat loss of epidermis is prevented, and the treatment effect is improved.

Description

technical field

[0001] The invention belongs to the technical field of cooling devices, in particular to a rapid cooling device for epidermis in laser skin hyperthermia surgery. Background technique

[0002] Port wine stain is a congenital, low-flow intradermal vascular malformation, with an incidence of about 0.3% in newborns, located at a subcutaneous depth of about 200-550 μm (Schneider BV , Mistuhashi Y, Schnyder UW .Ultrastructural observations in port wine stains. Ach Dermatol Res, 1998, 280(6):338-345). And with age, the color of the spots will gradually deepen, showing a pink-red-purple trend, and even scabs and develop into hemangiomas. Because port-wine stains are often located on exposed parts such as the face or neck of the human body, and seldom disappear spontaneously, it brings huge damage to the appearance of the patient and seriously affects the quality of life of the patient.

[0003] At present, laser has become the first choice for the treatment of port...

Examples

Embodiment Construction

[0036] The present invention is described in detail below in conjunction with accompanying drawing:

[0037] see figure 1 As shown, the present invention is a liquid CO based on the prevention of nozzle frosting 2 Rapid cooling device for flash spray, including high-pressure nitrogen cylinder 1, pressure reducing valve 2, high-pressure hose 3, pressure gauge 4, carbon dioxide storage tank 5, high-pressure hose 6, casing heat exchanger 7, throttle valve 8 , condenser 9, frequency conversion compressor 10, gas-liquid separator 11, carbon dioxide bubble detector 12, solenoid valve 13, stainless steel straight tube type double-fluid nozzle with adiabatic vacuum layer 14, automatic control device 15, external laser circuit 16 , Refrigeration cycle device 17, nitrogen nozzle 18, pressure gauge 19, temperature detection device 20, single-chip microcomputer controller 21 and solenoid valve 22.

[0038] The top outlet of the high-pressure nitrogen cylinder 1 is connected to the top o...

technical field

[0001] The invention belongs to the technical field of cooling devices, in particular to a rapid cooling device for epidermis in laser skin hyperthermia surgery. Background technique

[0002] Port wine stain is a congenital, low-flow intradermal vascular malformation, with an incidence of about 0.3% in newborns, located at a subcutaneous depth of about 200-550 μm (Schneider BV , Mistuhashi Y, Schnyder UW .Ultrastructural observations in port wine stains. Ach Dermatol Res, 1998, 280(6):338-345). And with age, the color of the spots will gradually deepen, showing a pink-red-purple trend, and even scabs and develop into hemangiomas. Because port-wine stains are often located on exposed parts such as the face or neck of the human body, and seldom disappear spontaneously, it brings huge damage to the appearance of the patient and seriously affects the quality of life of the patient.

[0003] At present, laser has become the first choice for the treatment of port...

Examples

Embodiment Construction

[0036] The present invention is described in detail below in conjunction with accompanying drawing:

[0037] see figure 1 As shown, the present invention is a liquid CO based on the prevention of nozzle frosting 2 Rapid cooling device for flash spray, including high-pressure nitrogen cylinder 1, pressure reducing valve 2, high-pressure hose 3, pressure gauge 4, carbon dioxide storage tank 5, high-pressure hose 6, casing heat exchanger 7, throttle valve 8 , condenser 9, frequency conversion compressor 10, gas-liquid separator 11, carbon dioxide bubble detector 12, solenoid valve 13, stainless steel straight tube type double-fluid nozzle with adiabatic vacuum layer 14, automatic control device 15, external laser circuit 16 , Refrigeration cycle device 17, nitrogen nozzle 18, pressure gauge 19, temperature detection device 20, single-chip microcomputer controller 21 and solenoid valve 22.

[0038] The top outlet of the high-pressure nitrogen cylinder 1 is connected to the top o...

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