Liquid nitrogen cryotherapy pen

Abstract

The utility model discloses a liquid nitrogen cryotherapy pen which comprises a pen container and a pen point, one end of the pen container is connected with a wooden plug in a clamping mode, the pen point and the wooden plug are installed at the two ends of the pen container, and therefore a sealed space capable of storing liquid nitrogen is formed in the pen container. During use, the rotating bead on the pen point is in contact with the skin of a patient, then the pen container is pressed, the main body structure moves in the connecting cylinder in the opposite direction, the limiting plate is separated from the fixing plate, the through hole is opened, and liquid nitrogen stored in the pen container can enter the main body structure along the through hole and flow out from the position of the rotating bead; when the pressure is reduced, the supporting spring drives the limiting plate to make contact with the fixing plate through the connecting rod, the through hole is closed, liquid nitrogen is prevented from flowing out, compared with a traditional cotton swab dipping method, a large amount of time can be saved, meanwhile, the flow of the liquid nitrogen can be autonomously controlled, and the operation efficiency is improved. The liquid nitrogen cryotherapy pen is convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of frozen therapy, concretely is liquid nitrogen frozen therapy pen. BACKGROUND

[0002] Freezing therapy is a kind of treatment method that low temperature is applied to pathological tissue to make it necrosis or induce biological effect to achieve the treatment purpose.It is widely used in dermatology because of its convenience.

[0003] The liquid nitrogen therapy widely used at present has two kinds: 1.cotton swab method.This method needs to prepare cotton swab, dips liquid nitrogen, places quickly on skin lesion and applies certain pressure.Because only the liquid nitrogen amount that cotton swab tip can absorb can be dipped at a time, so only 1-4 freeze-thaw operations can be carried out at a time, and for dozens or even hundreds of skin lesions, liquid nitrogen needs to be dipped from time to time, which is time-consuming and laborious;2.spraying method.This method uses liquid nitrogen in a sealed container to generate pressure due to evaporation, which can be directly sprayed on skin lesion through nozzle on the container to carry out freezing therapy.Because the liquid nitrogen sprayed each time will be affected by pressure and sprayed in fan shape, normal skin outside skin lesion is often frozen, and misinjury, large wound healing and other situations occur. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of liquid nitrogen frozen therapy pen, liquid nitrogen pen can store appropriate amount of liquid nitrogen at a time, save the efficacy of repeated dipping;Rolling type liquid nitrogen of bead flows out, can accurately control treatment area according to the size of pen head, it is convenient to operate, to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: liquid nitrogen frozen therapy pen, including the pen barrel for storing liquid nitrogen and the pen head for operation, one end of the pen barrel is connected with stopper, the pen head is installed at the end of the pen barrel away from the stopper, the pen head includes hollow main body structure and connecting barrel, the end of the main body structure is movably embedded with rotating bead, the inner cavity of the connecting barrel is fixed with fixed plate, the end of the main body structure away from the rotating bead is fixed with connecting rod, the end of the connecting rod away from the main body structure penetrates fixed plate and is fixed with limiting plate, the outer side of the connecting rod is equipped with supporting spring, one end of the supporting spring is fixed on the outer side of the main body structure, the other end of the supporting spring is fixed on the surface of the fixed plate, the surface of the fixed plate and the main body structure is equipped with through hole.

[0006] Preferably, the outer side of the connecting barrel is equipped with first screw thread, one end of the inner cavity of the pen barrel is equipped with second screw thread for being threadedly connected with the first screw thread, the outer side of the connecting barrel is equipped with first screw thread, one end of the inner cavity of the pen barrel is equipped with second screw thread for being threadedly connected with the first screw thread.

[0007] Preferably, a groove is formed on the outer side of the main body structure penetrating to one end of the connecting cylinder, and a sealing rubber ring is embedded in the inner cavity of the groove.

[0008] Preferably, a rubber sleeve is sleeved on the outer side of the pen barrel, and anti-skid rubber pads are arranged on the outer side of the rubber sleeve near the pen head.

[0009] Preferably, a clamping groove is formed on the outer side of the pen barrel near the cork end, and the clamping groove is used in cooperation with a bending forceps.

[0010] Preferably, an elastic clamp is fixed on the outer side of the pen barrel, and the elastic clamp is located on the outer side of the rubber sleeve.

[0011] Preferably, a safety buckle is clamped on the outer side of the main body structure, and the safety buckle is located between the main body structure and the connecting cylinder.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、The utility model discloses a pen barrel, a connecting cylinder and a main body structure are connected, the pen head and the cork are installed at both ends of the pen barrel, the pen barrel forms the sealed space that can store liquid nitrogen, when needing using the treatment pen to carry out the cryotherapy, the rotating bead on the pen head is contacted with the skin of the patient, then the pen barrel is pressed, makes the main body structure in the inside of the connecting cylinder opposite direction removal, makes the limiting plate and the fixed plate separation, and the through -hole is hit through, and the liquid nitrogen that the pen barrel stores can along the through -hole and enter the inside of the main body structure and flow from the rotating bead position, then the going of the treatment pen is controlled and the control range of cryotherapy is controlled, when the pressure reduces, the supporting spring is driven the limiting plate and the fixed plate contact through the connecting rod, and the through -hole is closed, prevents the flow of liquid nitrogen, and relative to the traditional cotton swab dipping method operation, can save a lot of time, and the flow of liquid nitrogen can be controlled by the self -determination, makes this liquid nitrogen cryotherapy pen convenient operation.

[0014] 2、The utility model discloses a safety buckle is set up, and the main body structure is positioned in the non -use time of the treatment pen, avoids the flow of liquid nitrogen because of the mistake and is hit through, and the low -temperature liquid nitrogen is easy to cause the organization cell necrosis. DRAWINGS

[0015] Fig. 1 It is the three -dimensional structure schematic diagram of the utility model;

[0016] Fig. 2 It is the local split three -dimensional structure schematic diagram of the utility model;

[0017] Fig. 3 It is the local split three -dimensional structure schematic diagram of the utility model;

[0018] Fig. 4 It is the split three -dimensional structure schematic diagram of the pen barrel and the rubber sleeve of the utility model;

[0019] Fig. 5 It is a sectional view of the main body structure.

[0020] In the figure, 1 is a pen barrel, 2 is a pen head, 21 is a main body structure, 22 is a connecting barrel, 23 is a rotating ball, 3 is a fixed plate, 4 is a connecting rod, 5 is a limiting plate, 6 is a supporting spring, 7 is a through hole, 8 is a first screw thread, 9 is a second screw thread, 10 is a sealing rubber ring, 11 is a rubber sleeve, 12 is an anti-skid rubber pad, 13 is a clamping groove, 14 is an elastic clamp, 15 is a safety buckle, and 16 is a wooden plug. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] The utility model provides a kind of liquid nitrogen refrigeration treatment pen as shown in Figs. 1-5 The utility model discloses a liquid nitrogen refrigeration treatment pen, which comprises a pen barrel 1 for storing liquid nitrogen and a pen head 2 for operation. The pen barrel 1 is connected with a wooden plug 16 at one end. The pen head 2 is installed at the end of the pen barrel 1 far away from the wooden plug 16. The pen head 2 comprises a hollow main body structure 21 and a connecting barrel 22. The end of the main body structure 21 is movably embedded with a rotating ball 23. The inner cavity of the connecting barrel 22 is fixedly connected with a fixed plate 3. The end of the main body structure 21 far away from the rotating ball 23 is fixedly connected with a connecting rod 4. The end of the connecting rod 4 far away from the main body structure 21 penetrates through the fixed plate 3 and is fixedly connected with a limiting plate 5. The outer side of the connecting rod 4 is sleeved with a supporting spring 6. One end of the supporting spring 6 is fixedly connected to the outer side of the main body structure 21. The other end of the supporting spring 6 is fixedly connected to the surface of the fixed plate 3. The surface of the fixed plate 3 and the surface of the main body structure 21 are both provided with a through hole 7.

[0023] By installing the pen head 2 and the wooden plug 16 at both ends of the pen barrel 1, the pen barrel 1 forms a sealed space that can store liquid nitrogen. When the cryogenic treatment pen is needed for use, the rotating ball 23 on the pen head 2 is brought into contact with the skin of the patient, and then the pen barrel 1 is pressed, so that the main body structure 21 moves in the opposite direction inside the connecting barrel 22, the limiting plate 5 is separated from the fixed plate 3, the through hole 7 is opened, and the liquid nitrogen stored in the pen barrel 1 can flow out from the rotating ball 23 position along the through hole 7 into the inside of the main body structure 21. Then, the direction of the cryogenic treatment pen is controlled to control the range of the cryogenic treatment. When the pressure decreases, the supporting spring 6 drives the limiting plate 5 to contact the fixed plate 3 through the connecting rod 4, the through hole 7 is closed, and the flow of liquid nitrogen is prevented. Compared with the traditional cotton swab dipping method, a lot of time can be saved, and the flow of liquid nitrogen can be controlled by the user. The liquid nitrogen cryogenic treatment pen is convenient to operate.

[0024] The outer side of the connecting barrel 22 is provided with a first screw thread 8, and one end of the inner cavity of the pen barrel 1 is provided with a second screw thread 9 connected with the first screw thread 8. The outer side of the connecting barrel 22 is provided with a first screw thread 8, and one end of the inner cavity of the pen barrel 1 is provided with a second screw thread 9 connected with the first screw thread 8. Through the cooperation of the first screw thread 8 and the second screw thread 9, the pen head 2 is conveniently connected with the pen barrel 1 through the connecting barrel 22.

[0025] The outer side of the connecting barrel 22 is provided with a first screw thread 8, and one end of the inner cavity of the pen barrel 1 is provided with a second screw thread 9 connected with the first screw thread 8. The outer side of the connecting barrel 22 is provided with a first screw thread 8, and one end of the inner cavity of the pen barrel 1 is provided with a second screw thread 9 connected with the first screw thread 8. Through the cooperation of the first screw thread 8 and the second screw thread 9, the pen head 2 is conveniently connected with the pen barrel 1 through the connecting barrel 22.

[0026] The outer side of the pen barrel 1 is provided with a rubber sleeve 11, and the outer side of the rubber sleeve 11 is provided with a non-slip rubber pad 12 near the pen head 2. Through the setting of the rubber sleeve 11, the comfort of using the treatment pen is improved, and the non-slip rubber pad 12 can increase the friction between the user and the pen barrel 1, preventing slipping during pressing operation.

[0027] The outer side of the pen barrel 1 near the wooden plug 16 is provided with a clamping groove 13, which cooperates with the bending tongs. Through the setting of the clamping groove 13, when adding liquid nitrogen, the pen barrel 1 is not directly held by fingers, but can be clamped by bending tongs cooperating with the clamping groove 13, so as to avoid splashing of liquid nitrogen to hands.

[0028] The outer side of the pen barrel 1 is fixed with an elastic clamp 14, which is located outside the rubber sleeve 11. Through the setting of the elastic clamp 14, the treatment pen can be clamped on clothes or other objects.

[0029] The outer side of the main body structure 21 is clamped with a safety buckle 15, which is located between the main body structure 21 and the connecting cylinder 22. Through the arrangement of the safety buckle 15, the main body structure 21 is limited by the safety buckle 15 in the non-use time of the treatment pen, so as to avoid the outflow of liquid nitrogen caused by accidental touch, which is easy to cause tissue cell necrosis.

[0030] In specific use, the connecting cylinder 22 is threadedly connected to one end of the pen barrel 1, and then the clamp groove 13 on the pen barrel 1 is clamped by using a bending clamp. Liquid nitrogen is added from the other end of the pen barrel 1, and then the wood plug 16 is used for plugging. Before use, the safety buckle 15 needs to be removed. Then the user places the rotating bead 23 in the freezing area. By pressing the pen barrel 1, the pen barrel 1 and the pen head 2 are displaced. The main body structure 21 extrudes the supporting spring 6 upwards. Then the main body structure 21 drives the limiting plate 5 to separate from the fixed plate 3 through the connecting rod 4. The through hole 7 on the fixed plate 3 communicates the pen barrel 1 and the pen head 2. The liquid nitrogen in the pen barrel 1 flows into the main body structure 21 along the through hole 7, and then flows out from the rotating bead 23. By moving the treatment pen, the rotating bead 23 is rotated, which is matched with the outflow of the liquid nitrogen, so as to facilitate the smearing of the liquid nitrogen on the treatment area.

[0031] The size of the rotating bead 23 can be divided into two specifications of 0.1 cm and 0.5 cm, which can be suitable for most skin lesions. At the same time, the pen barrel 1 is made of a material with good low-temperature resistance and sealing performance, such as 304 stainless steel or titanium.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen cryotherapy pen, comprising a pen holder (1) for storing liquid nitrogen and a pen tip (2) for operation, characterized in that: One end of the pen holder (1) is fitted with a wooden plug (16), and the pen tip (2) is installed at the end of the pen holder (1) away from the wooden plug (16). The pen tip (2) includes a hollow main structure (21) and a connecting cylinder (22). A rotating bead (23) is movably embedded at the end of the main structure (21). A fixing plate (3) is fixed in the inner cavity of the connecting cylinder (22). A connecting rod (4) is fixed at the end of the main structure (21) away from the rotating bead (23). The end of the connecting rod (4) away from the main structure (21) passes through the fixing plate (3) and is fixed with a limit plate (5). A support spring (6) is sleeved on the outside of the connecting rod (4). One end of the support spring (6) is fixed on the outside of the main structure (21), and the other end of the support spring (6) is fixed on the surface of the fixing plate (3). Through holes (7) are opened on the surfaces of the fixing plate (3) and the main structure (21).

2. The liquid nitrogen cryotherapy pen according to claim 1, characterized in that: The outer side of the connecting cylinder (22) is provided with a first thread (8), and one end of the inner cavity of the pen holder (1) is provided with a second thread (9) that is threadedly connected to the first thread (8).

3. The liquid nitrogen cryotherapy pen according to claim 1, characterized in that: The main structure (21) extends through to the outer side of one end of the connecting cylinder (22) and has a groove, and a sealing ring (10) is embedded in the inner cavity of the groove. The outer side of the sealing ring (10) is attached to the inner wall of the connecting cylinder (22).

4. The liquid nitrogen cryotherapy pen according to claim 1, characterized in that: The pen holder (1) is fitted with a rubber sleeve (11) on the outside, and anti-slip rubber pads (12) are provided around the outside of the rubber sleeve (11) near the pen tip (2).

5. The liquid nitrogen cryotherapy pen according to claim 1, characterized in that: The pen holder (1) has a clamping groove (13) on the outer side near the end of the wooden plug (16), and the clamping groove (13) is used in conjunction with bending pliers.

6. The liquid nitrogen cryotherapy pen according to claim 1, characterized in that: An elastic clip (14) is fixed to the outside of the pen holder (1), and the elastic clip (14) is located outside the rubber sleeve (11).

7. The liquid nitrogen cryotherapy pen according to claim 1, characterized in that: A safety buckle (15) is attached to the outside of the main structure (21), and the safety buckle (15) is located between the main structure (21) and the connecting cylinder (22).

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