CN2035621U - Portable temp. and time controlled freezing treatment appliance - Google Patents

Abstract

The utility model relates to a physical treatment appliance which can be used for freezing treatment in the department of ophthalmology, the department of dermatology, the department of stomatology, and the department of plastics. The utility model comprises a freezing knife, a freezing liquid storage box, and a box body; the freezing knife is provided with a temperature probe, a temperature-recovery appliance, and a timed trigger switch; the freezing liquid storage box is provided with an electromagnetic valve, a pressure booster, a low liquid level detector; the box body automatically controls the time, the temperature, and the temperature-recovery of the freezing treatment. The freezing treatment appliance has the functions of adjustable and controllable treatment temperature and time, automatic temperature-recovery, automatically displaying treatment temperature, automatic alarm for the over-low level of the storage box, and automatically hooting after the finish of the temperature-recovery. The utility model has the advantages of high automatization, convenient operation, small size, convenience for carrying, and safety.

Description

Portable temp. and time controlled freezing treatment appliance

This utility model relates to a kind of physical therapy appliance, can carry out cold therapy to ophthalmic diseases, also can carry out cold therapy to human body in department of dermatologry, the department of stomatology and face-lifting section.

At present in the treatment of ophthalmic diseases, existing freezing medical apparatus and instruments, generally can satisfy the disease treatment requirement, but this class apparatus is incomplete in the function of aspects such as the adjusting for the treatment of temperature and time and control, the numeral demonstration of temperature, automatic rewarming and low liquid level warning, make troubles to therapeutic process, even influence therapeutic effect.

The cryosurgical engineering of the purpose of this utility model when to be that design is a kind of can be in ophthalmology and department of dermatologry, the department of stomatology and face-lifting section carry out the portable controlled temperature control of cold therapy to human body makes it can satisfy following requirement:

1. the temperature ， And of adjustable cold therapy keeps the constant of this temperature in therapeutic process;

2. time of adjustable cold therapy, and rewarming automatically when ending, make apparatus hightail human body in treatment time;

3. the temperature of treatment can be shown ， And automatic newspaper sound when rewarming finishes;

Whole apparatus simple in structure, volume is little, in light weight, and be convenient for carrying;

5. the reliable operation of therapeutic apparatus, safety.

Cryosurgical engineering during portable controlled temperature control has three big parts, promptly freezing cutter, refrigerating fluid storage and induction system and control chamber.Existing division is as follows:

1. freezing cutter.It is to be directly used in the apparatus that human body is treated, and therefore has the shaft-like profile of being convenient to the operator gripping and treats required band refrigeration, the internal structure of rewarming device.Freezing knife structure can divide three parts, promptly freezing cutter head, freezing bar and front and back joint.

Freezing cutter head has profile and the size that is suitable for the human organ shape, and can disinfect easily, and there is the space for the refrigerating fluid gasification its inside.

Freezing bar has three concentric pipes, i.e. feed tube, muffler and trocar sheath.Feed tube one end connects with transfusion system, and the other end is connected with the refrigerating fluid gasification space in the freezing cutter head.Muffler one end is communicated with gasification space, and the other end communicates with atmosphere, can be the row of the gasification residual air in the freezing cutter head to atmosphere.Installed one on the trocar sheath operator is contained the part beyond the freezing cutter to the timing trigger switch ， And of the accurate timing of therapeutic process and it, made freezing cutter become a safe and reliable utensil that grips for operator.

Forward and backward joint is respectively applied for freezing cutter head and is tightly connected with the refrigerating fluid induction system with freezing bar, freezing bar.In addition, rewarming device and temperature sensor have been installed in front connector, on the joint of back, have had the clip of fixing cord.The rewarming device of drawing along trocar sheath, temperature sensor and regularly the lead of trigger switch can on this clip, make axial restraint, lead to control chamber then.

2. refrigerating fluid is stored and induction system.It has comprised refrigerating fluid storage box and infusion tube.

The refrigerating fluid storage box is the container of a band attemperator, and there is the lid of band sealing device its top, metal catheter, supercharger and low liquid level detector, pressure indicator has been installed on the lid, and has been prevented the safety that the storage box internal pressure is too high.

One end of metal catheter, supercharger and low liquid level detector all inserts in the interior refrigerating fluid of container, and the other end then stretches out box body.All there is lead to feed control chamber on supercharger, the low liquid level detector, gasifier and electromagnetic valve ， And has been installed on metal catheter had the joint that can be connected with infusion tube.

Infusion tube has enough length, and its end connects with the joint of metal catheter, and the other end connects with the back joint of freezing cutter.

3. control chamber.It is a casing that has control circuit, control circuit comprises: (1) amplifies the signal that temperature sensor in the freezing cutter records, and compare with the design temperature signal, with this difference control electrical switch, the temperature-adjusting circuit that makes electromagnetic valve and supercharger open or close, this circuit has temperature indicator; (2) when pressing regularly trigger switch, intervalometer can be by the time control electrical switch of setting, and makes electromagnetic valve, supercharger unlatching or circuit during the control of closing; (3) when freezing cutter process of refrigerastion is ended or finished, can connect rewarming Qi ， And automatic rewarming circuit of newspaper sound automatically when the rewarming temperature reaches setting value automatically; (4) the low liquid level automatic alarm circuit of mistake of the signal triggering alarming device that can record low liquid level detector in the refrigerating fluid storage box.On a side of control chamber, temperature setting device has been installed, temperature is set and the permutator of measuring, temperature indicator, setter regularly, and represents that with newspaper sound the sound-producing device that the rewarming process finishes, display lamp, the refrigerating fluid that the expression therapeutic process carries out cross low liquid level alarm, on and off switch.

Cryosurgical engineering during portable controlled temperature control has following advantage:

1. the cryogenic temperature ， And that can regulate freezing cutter in therapeutic process keeps the constant of this temperature;

2. can regulate the treatment time of freezing cutter, continuous cooling in treatment time, and treatment finishes or when ending, is thawed rapidly at the automatic rewarming of freezing cutter;

3. the automatic newspaper sound that whole therapeutic process has temperature to show, have interior low liquid level warning of refrigerating fluid storage box and rewarming to finish, therefore, the automaticity height, easy to operate;

The volume of cryosurgical engineering little, in light weight, be convenient to a people and carry and operate.

Below in conjunction with example ， And contrast accompanying drawing this utility model is further described below.Accompanying drawing thes contents are as follows:

The construction profile figure of the cryosurgical engineering when Fig. 1 is portable controlled temperature control;

The circuit block diagram of the cryosurgical engineering control chamber inner control element when Fig. 2 is portable controlled temperature control;

Fig. 3 is the positive view of freezing cutter;

Fig. 4 is the positive view of refrigerating fluid storage box.

Embodiment is refrigerating fluid with the liquid nitrogen.Can find out that liquid nitrogen storage box 1 is installed together with control chamber 3 from Fig. 1, freezing cutter 5 is connected with the metal catheter on the liquid nitrogen storage box 1 16 by infusion tube 2.

Find out from Fig. 1 and Fig. 4, be provided with the muff 18 that foam plastics is made in the box body 4 of liquid nitrogen storage box 1, placed the glass liner 17 of the liquid nitrogen of enough seance consumption in the muff.There are 14, four wing nuts of lid 15 of band sealing ring 23 that lid 14 is fastened on the box body 4 on the box body 4.Metal catheter 16, low liquid level detector 19, supercharger 20 and Pressure gauge 22, safety 13 on lid 14, have been fixed respectively.One end of metal catheter, low liquid level detector and supercharger all inserts in the interior low layer liquid nitrogen of glass liner, on the outer metal catheter of lid electromagnetic valve 12 has been installed, gasifier 11 And connect with infusion tube 2 by joint 24, lead hanging down on liquid level detector and supercharger, the electromagnetic valve all enters in the control chamber 3 by binding post 25.Gasifier 11 and supercharger 20 are heater, and gasifier is the finned heat exchanger that a heat that utilizes surrounding air makes the part liquid nitrogen gasification, and supercharger is made of the electric heater of closed structure heating wires.

Freezing as can be seen cutter 5 is round bar shape structures from Fig. 3, and its front portion is freezing cutter head 51, and there is the back joint 64 of a band conductor clamps at the rear portion, and this joint can connect with infusion tube 2.The gasification space 52 that liquid nitrogen is arrived in the freezing cutter head 51 through feed tube 53 by infusion tube 2, the nitrogen behind the liquid nitrogen gasification enters muffler 54.There is circle plug 63 at the muffler rear portion, and it to steam vent 62 radially, and has played fixation to the nitrogen retaining to the axial float of feed tube 53.

Rewarming device 55 is heater coils, and its synthermal pick off is installed in the front connector 56 together, and the front connector inside and outside wall all is threaded, and is connected with freezing cutter head 51 with muffler 54 respectively.

The trocar sheath 58 that grips for operator is held out against nut 61 and packing ring 60 and is fixed on the outermost layer of freezing cutter, its rear portion is bonding hood 59, the front portion installed one with plastic sheeting topped often open regularly trigger switch 65.Regularly the lead in trigger switch, rewarming device and the temperature sensor all arrives back joint 64 along outer sleeve inner wall, after fixing on the clip of back joint, introduces control chamber.

The appliance controling element that has circuit shown in Figure 2 in the control chamber 3 has been installed buzzer 31, temperature indicator 32, temperature and has been set the display lamp 38 that is carrying out with the demonstration permutator of measuring 33, on and off switch 34, timing setter 35, temperature setting knob 36, low liquid level warning red light 37 and expression process of refrigerastion on the operating surface of control chamber.

Cryosurgical engineering working condition during portable controlled temperature control is as follows:

(1) freezing cutter is disinfected;

(2) outward winding wing nut 15, open and cover 14, add the liquid nitrogen of enough seance consumptions in the glass liner 17, will cover 14 closed ， And then and tighten wing nut 15;

(3) temperature being set and measured permutator 33 turns to " setting " side ， And to turn on the power switch 34;

(4) the rotational temperature setting knob 36, make temperature indicator 32 demonstrate required treatment temperature, as-80 ℃.Supercharger 20 connection heating this moment, liquid nitrogen storage box internal pressure increases, electromagnetic valve 12 breakdowns, and liquid nitrogen enters metal catheter 16, arrives freezing cutter 5 by electromagnetic valve 12, gasifier 11 and infusion tube 2.Liquid nitrogen has a small amount of gasification when gasifier, nitrogen forms at the metal catheter inwall and is detained air film, makes metal catheter that certain heat insulating ability be arranged.The liquid nitrogen that enters freezing cutter arrives gasification space 52 from feed tube 53, makes freezing cutter head 51 refrigeration through gasification, and the nitrogen after the gasification is arranged in the atmosphere of freezing cutter afterbody by steam vent 62, the hood 59 at muffler 54 rear portions.In the process of refrigerastion, green indicating lamp 38 is shinny;

(5) temperature is set and measured permutator 33 and turn to " measurement " side, on temperature indicator, demonstrate freezing 51 temperature.Along with the carrying out of process of refrigerastion, approaching gradually-80 ℃ ， And are constant on-80 ℃ for this temperature;

(6) according to the clinical required time, stir regularly setter 35, ， And in 10 second shifts to therapentic part to freezing cutter 5 as " 10 " expression needs, and is contacted, and meanwhile presses the timing trigger switch 65 on the freezing cutter, and the treatment timing begins;

(7) arrive setting-up time during 10 seconds, control circuit cuts out electromagnetic valve 12 and supercharger 20 automatically, connects rewarming device 55 automatically, and at this moment green indicating lamp 38 extinguishes;

(8) when the rewarming temperature reached the setting value of adjusting inside as+10 ℃, buzzer 31 was rung, and represents that freezing cutter 5 has thawed;

(9) operator unclamps the timing trigger switch 65 on the freezing cutter 5, and buzzer 31 stops to ring, and electromagnetic valve 12 and supercharger 20 are connected automatically, has begun the next one refrigeration of freezing cutter 5---rewarming circulation, and indication green light 38 is shinny;

When (10) liquid nitrogen in glass liner 17 was very few, the red led 37 of low liquid level warning was shinny, and supercharger 20 quits work simultaneously, and electromagnetic valve 12 cuts out;

(11) finish several required refrigeration of therapeutic process---performing the operation after the rewarming circulation finishes powered-down switch 34.

Claims (1)

1, the cryosurgical engineering during a kind of portable controlled temperature control has following structure and forms:

(1) one includes freezing cutter head 51, feed tube 53, muffler 54, front connector 56, trocar sheath 58, hood 59, the packing ring 60 of being with steam vent 62 of being with gasification space 52, the freezing cutter 5 that holds out against nut 61, circle plug 63 and back joint 64;

(2) one include the refrigerating fluid storage box 1 of being with the muff 18 and the metal catheter 16 of lid 14, Pressure gauge 22, safety 13, charged magnet valve 12 and the gasifier 11 of the box body 4 that can adorn the glass liner of thermos 17 of refrigerating fluid 21, band sealing ring 23 and nut 15;

(3) flexible pipes 2 that energy couples together the metal catheter 16 on freezing cutter 5 and the refrigerating fluid storage box 1 by back joint 64;

Feature of the present utility model is:

(1) has rewarming device 55, temperature sensor 57, timing trigger switch 65 on the freezing cutter 5;

(2) have supercharger 20, electromagnetic valve 12, low liquid level detector 19 in the refrigerating fluid storage box 1;

(3) have one have can to the treatment temperature and time of freezing cutter carry out automatic control circuit, freezing cutter rewarming is carried out the circuit of automatic control and the control chamber 3 of circuit that low liquid level in the refrigerating fluid storage box is reported to the police automatically, on the side of control chamber, installed one and represented that with newspaper sound sound-producing device 31, temperature indicator 32, temperature that rewarming finishes set and measure permutator 33, on and off switch 34, regularly setter 35, temperature setting device 36, low liquid level alarm device 37 and the ongoing indicator 38 of expression process of refrigerastion.

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