Cold spraying prevention connecting piece, treatment handle and treatment equipment
By setting a first barrier structure of the anti-breathing cold connection in the refrigerant channel of the treatment handle, the refrigerant spraying is blocked, and the safety risk of refrigerant spraying is solved when the treatment handle is pulled out, achieving a safer use effect.
Patent Information
- Application Number
- CN202421447097.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-21
AI Technical Summary
When the existing treatment handle is pulled out from the host, refrigerant in the refrigerant pipeline will be sprayed out, which poses safety risks, such as frostbite in the skin.
A spray-proof cold connector is designed, including a first adapter and a second adapter, and a method of blocking the discharge of refrigerant in the refrigerant passage through a first barrier structure, slowing the refrigerant speed and reducing the amount of refrigerant ejected.
It effectively avoids the safety risk of refrigerant spraying at the moment of pulling out, and reduces the risk of frostbite of refrigerant to the skin.
Smart Images
Figure CN222917599U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an anti-spray cold connecting piece, a treatment handle and a treatment device. Background Art
[0002] The treatment device includes a main unit and a treatment handle. Usually, the overheated electrode in the treatment handle is spray-cooled. The refrigerant in the main unit flows through the pipeline to the treatment handle, and sprays cold on the electrode while performing radiofrequency treatment to relieve the pain generated during treatment.
[0003] The treatment handle and the main unit are connected in a pluggable manner. The treatment handle is plugged into the main unit. After plugging, the refrigerant pipeline in the treatment handle is communicated with the refrigerant pipeline in the main unit. When in use, different treatment handles can be replaced according to different treatment needs. When replacing different treatment handles, the handle end of the treatment handle is pulled out from the main unit. However, due to the certain pressure in the refrigerant pipeline of the treatment handle, the refrigerant in the pipeline will be ejected together, which may cause certain safety risks, such as spraying on the skin and frostbiting the skin. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide an anti-spray cold connecting piece, a treatment handle and a treatment device, aiming to solve the problem that when the existing treatment handle is pulled out from the main unit, the refrigerant in the pipeline of the treatment handle will be ejected together.
[0005] To achieve the above purpose, the utility model provides an anti-spray cold connecting piece, including: a first adapter, the first end of the first adapter is used to connect with an external main unit; a second adapter, the second end of the first adapter is connected with the first end of the second adapter, and the second end of the second adapter is used to connect with an external treatment handle, so that the pipelines between the main unit and the treatment handle are communicated; a first blocking structure, the first blocking structure is arranged in the refrigerant channel formed by the second adapter and the first adapter, and the first blocking structure is used to prevent the refrigerant from spraying out from the end of the first adapter far away from the second adapter.
[0006] In an embodiment, a plurality of through holes are formed on the surface of the first blocking structure, and the plurality of through holes are evenly distributed on the surface of the first blocking structure, and the through holes are used for the refrigerant to pass through.
[0007] In an embodiment, the axial direction of the through hole is arranged at an angle with the axial direction of the refrigerant channel.
[0008] In one embodiment, the first adapter has a first channel, and the second adapter has a second channel. The first channel communicates with the second channel to form the refrigerant channel. The first blocking structure is disposed in the first channel and is clamped and fixed by the wall surface of the first channel and the end face of the second adapter; or the first blocking structure is disposed in the second channel and is clamped and fixed by the wall surface of the second channel and the end face of the first adapter.
[0009] In one embodiment, the first channel includes an inlet section and an outlet section. The diameter of the outlet section is larger than that of the inlet section. The second adapter partially extends into the outlet section, and the second channel communicates with the outlet section. The first blocking structure is installed in the outlet section and is clamped and fixed by the end face of the outlet section and the end face of the second adapter.
[0010] In one embodiment, the anti-spray cooling connector further includes a second blocking structure. The second blocking structure is disposed in the refrigerant channel and is used to prevent the refrigerant from spraying out from one end of the first adapter away from the second adapter.
[0011] The present utility model also provides a treatment handle, which includes a handle assembly, a refrigerant pipe assembly, and the anti-spray cooling connector as described above. One end of the refrigerant pipe assembly is hermetically connected to the second adapter of the anti-spray cooling connector, and the other end of the refrigerant pipe assembly is hermetically connected to the handle assembly.
[0012] In one embodiment, the refrigerant pipe assembly further includes a screw. One end of the screw is sleeved outside the sleeve structure and abuts against the end face of the sleeve structure away from the connector structure. The screw is rotatably connected to the sleeve structure, and the other end of the screw extends into the second adapter and is threadedly connected to the second adapter.
[0013] The present utility model also provides a treatment device, which includes a host and the treatment handle as described above.
[0014] Compared with the prior art, the anti-spray cooling connector, the treatment handle, and the treatment device provided by the present utility model have the following beneficial effects:
[0015] The technical solution of the present utility model realizes the connection of the pipeline between the host and the treatment handle by providing an anti-spray cooling connector, which is used to connect between the host and the treatment handle, facilitating the transfer of the refrigerant from the host to the treatment handle through the pipeline and the anti-spray cooling connector; the first blocking structure is arranged in the refrigerant channel formed by the second adapter and the first adapter. Therefore, when the treatment handle is pulled out of the host, the first blocking structure can absorb the kinetic energy of the refrigerant medium, slow down the refrigerant speed, instantaneously reduce the pressure of the refrigerant passing through the first blocking structure, reduce the amount of refrigerant instantaneously ejected in the refrigerant pipeline of the treatment handle, avoid the instantaneous ejection of the refrigerant due to the pressure effect, and prevent the refrigerant from being sprayed onto the user's skin and causing frostbite, thus avoiding potential safety risks. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the handle joint of the present utility model;
[0018] Figure 2 It is a cross-sectional view of an embodiment of the handle joint of the present utility model;
[0019] Figure 3 It is a schematic diagram of the structure of an embodiment of the anti-spray cooling connector and the refrigerant pipe assembly of the present utility model;
[0020] Figure 4 It is a cross-sectional view of an embodiment of the anti-spray cooling connector and the refrigerant pipe assembly of the present utility model;
[0021] Figure 5 It is a partial cross-sectional view of an embodiment of the anti-spray cooling connector and the refrigerant pipe assembly of the present utility model.
[0022] Explanation of the reference numerals in the drawings:
[0023] 10. Anti-spray cooling connector; 11. First adapter; 111. First channel; 12. Second adapter; 121. Second channel; 122. Insertion part; 123. Abuttment part; 13. First blocking structure; 14. Sealing ring; 15. Refrigerant channel; 20. Refrigerant pipe assembly; 21. Refrigerant pipe structure; 22. Connector structure; 23. Sleeve structure; 24. Screw; 30. Handle joint.
[0024] The realization, functional features and advantages of the object of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation mode
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0027] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0028] Please refer to Figures 1 to 5 , the present utility model provides an anti-spray cold connection member 10, including: a first adapter 11, the first end of the first adapter 11 is used to connect with an external host; a second adapter 12, the second end of the first adapter 11 is connected to the first end of the second adapter 12, and the second end of the second adapter 12 is used to connect with an external treatment handle, so that the pipeline between the host and the treatment handle is communicated; a first blocking structure 13, the first blocking structure 13 is arranged in a refrigerant channel 15 formed by the second adapter 12 and the first adapter 11, and the first blocking structure 13 is used to prevent the refrigerant from spraying out from the end of the first adapter 11 far away from the second adapter 12.
[0029] Specifically, the anti-spray cold connection member 10 includes a first adapter 11 and a second adapter 12. It is connected to the host through the first adapter 11 and connected to the treatment handle through the second adapter 12. The first adapter 11 and the second adapter 12 form a refrigerant channel 15 for the refrigerant to pass through. The first blocking structure 13 is arranged in the refrigerant channel 15 and can be arranged in the first adapter 11 or the second adapter 12. The first blocking structure 13 is used to block and buffer the refrigerant.
[0030] The connection method between the first adapter 11 and the second adapter 12 can be set according to actual needs. A connector can be set between the first adapter 11 and the second adapter 12 for connection, or the first adapter 11 and the second adapter 12 can be fixed by means of socket connection. A refrigerant pipeline is arranged in the host, and a connection interface is arranged on the host pipeline. The first adapter 11 is adaptively connected to the connection interface of the host, and the second adapter 12 is adaptively connected to the pipeline in the treatment handle. Therefore, the host and the treatment handle are connected through the first adapter 11 and the second adapter 12.
[0031] The specific structure of the first blocking structure 13 can be set according to actual needs. The first blocking structure 13 can be set as structures such as a filter screen or a filter element, or can also be set as a component including inclined holes or a grid, etc. As long as the first blocking structure 13 can allow the refrigerant medium to pass through, absorb the kinetic energy of the refrigerant, and reduce the speed of the refrigerant spraying outwards, as long as it can absorb the kinetic energy of the refrigerant, it belongs to the function of blocking. When the first blocking structure 13 selects a blocking structure with a filtering function, in addition to being able to absorb the kinetic energy of the refrigerant, it can also effectively filter fine particles in the channel to avoid blocking the refrigerant pipe structure 21 in the treatment handle as described below.
[0032] When the host is separated from the treatment handle, the first blocking structure 13 can limit the flow rate of the refrigerant medium, absorb the kinetic energy of the refrigerant medium, slow down the refrigerant speed, and avoid the refrigerant spraying out and freezing the user at the moment of separation.
[0033] The installation method of the first blocking structure 13 can be fixed on the inner wall of the refrigerant channel 15, or a notch can be opened on the inner wall of the adapter to place the first blocking structure 13 in the notch. The specific fixing method can be selected according to actual needs.
[0034] The technical solution of the utility model is to provide an anti-cold spraying connector 10 for connecting between the main unit and the treatment handle, so as to realize the pipeline connection between the main unit and the treatment handle, so as to facilitate the refrigerant to be transferred from the main unit to the treatment handle through the pipeline and the anti-cold spraying connector 10; the first blocking structure 13 is arranged in the refrigerant channel 15 formed by the second adapter 12 and the first adapter 11, so that when the treatment handle is pulled out of the main unit, the kinetic energy of the refrigerant medium can be absorbed by the first blocking structure 13, and the speed of the refrigerant is slowed down, so that the pressure of the refrigerant passing through the first blocking structure 13 is instantly reduced, so that the amount of refrigerant instantly sprayed out of the refrigerant pipeline of the treatment handle is reduced, so as to avoid the refrigerant being instantly sprayed out due to the pressure, and sprayed onto the user's skin to cause frostbite, etc., thereby avoiding safety risks.
[0035] In an embodiment of the utility model, a plurality of through holes (not shown) are provided on the surface of the first blocking structure 13, and the plurality of through holes are evenly distributed on the surface of the first blocking structure 13, and the through holes are used for the passage of refrigerant.
[0036] In detail, through holes are provided on the first blocking structure 13, through which the refrigerant can pass, limit the flow of the refrigerant, and absorb the kinetic energy of the refrigerant. The through holes can be formed in the first blocking structure 13 itself, or in the first blocking structure 13 at a later stage. The through holes can be in the form of oblique holes, elongated holes, or grid holes, etc.
[0037] In one embodiment, the first blocking structure 13 is set as a porous metal filter. That is, the first blocking structure 13 is made of porous metal, so that the first blocking structure 13 has a pore network structure inside, which can allow the refrigerant to pass through. The pore structure can increase the resistance when the refrigerant passes through, absorb the kinetic energy of the refrigerant, and achieve the effect of reducing the impact force of the refrigerant spraying when changing different treatment handles, protecting the user from frostbite. In addition, the porous metal filter can be sintered and formed by stainless steel powder. The metal material itself has high strength and toughness, so that the first blocking structure 13 can maintain structural stability even when it is subjected to the refrigerant pressure or the mechanical stress generated during the filtration process, and is not easy to deform or damage, thereby ensuring long-term buffering performance.
[0038] In the embodiment of the present invention, the axial direction of the through hole is arranged at an angle with the axial direction of the refrigerant channel 15 .
[0039] It should be noted that the axial direction of the through hole is set at an angle to the axial direction of the refrigerant channel 15, that is, the flow direction of the through hole is at an angle to the flow direction in the refrigerant channel 15. When the refrigerant flows through the through hole, due to the change in the flow direction, several through holes will form a more complex flow channel. When passing through the first blocking structure 13, the refrigerant will generate more friction and impact with the first blocking structure 13, which can disperse the direct impact force of the refrigerant, consume a part of the kinetic energy of the refrigerant, and slow down the flow rate of the refrigerant.
[0040] In an embodiment of the present invention, the first adapter 11 has a first channel 111, the second adapter 12 has a second channel, and the first channel 111 communicates with the second channel 121 to form the refrigerant channel 15; the first blocking structure 13 is disposed in the first channel 111 and is clamped and fixed by the wall surface of the first channel 111 and the end surface of the second adapter 12; or the first blocking structure 13 is disposed in the second channel 121 and is clamped and fixed by the wall surface of the second channel 121 and the end surface of the first adapter 11.
[0041] Specifically, the connection manner between the first channel 111 and the second channel 121 may be that the first adapter 11 is inserted into the second adapter 12, or the second adapter 12 is inserted into the first adapter 11. Therefore, the first blocking structure 13 may be disposed in the first channel 111 and clamped and fixed by the wall surface in the first channel 111 and the end surface of the second adapter 12, or disposed in the second channel 121 and clamped and fixed by the wall surface of the second channel 121 and the end surface of the first adapter 11. The specific installation position can be selected according to actual needs.
[0042] In an embodiment of the present invention, the first channel 111 includes an inlet section (not marked in the figure) and an outlet section (not marked in the figure), and the diameter of the outlet section is larger than the diameter of the inlet section; the second adapter 12 has a second channel 121, and a part of the second adapter 12 extends into the outlet section, and the second channel 121 communicates with the outlet section; the first blocking structure 13 is installed in the outlet section and is clamped and fixed by the end surface of the outlet section and the end surface of the second adapter 12.
[0043] Specifically, by setting the diameter of the outlet section to be larger than the diameter of the inlet section, a holding step is formed in the first adapter 11, and then the second adapter 12 is extended into the outlet section so that the second channel 121 communicates with the outlet section. At the same time, the first blocking structure 13 is disposed between the outlet section and the second adapter 12 and clamped and fixed by the end surface of the outlet section and the end surface of the second adapter 12. This method enables the first blocking structure 13 to be stably installed between the first adapter 11 and the second adapter 12, absorb the kinetic energy of the refrigerant, slow down the flow rate of the refrigerant, and is convenient for disassembly and replacement of the first blocking structure 13.
[0044] In addition, a sealing ring 14 is provided at the joint of the first adapter 11 and the second adapter 12. The inner wall of the sealing ring 14 fits against the outer wall of the second adapter 12, and the outer wall of the sealing ring 14 abuts against the outer wall of the second adapter 12. By providing the sealing ring 14, the sealing performance between the first adapter 11 and the second adapter 12 can be enhanced, preventing the refrigerant medium from penetrating to the external environment from the joint of the first adapter 11 and the second adapter 12.
[0045] In an embodiment of the present utility model, the anti-spray cold connecting member 10 further includes a second blocking structure (not shown in the figure), the second blocking structure is disposed in the refrigerant passage 15, and the second blocking structure is used to prevent the refrigerant from spraying out from one end of the first adapter 11 away from the second adapter 12.
[0046] Specifically, the second blocking structure is also disposed in the refrigerant passage 15, and the second blocking structure is used to block and buffer the refrigerant.
[0047] The specific structure of the second blocking structure can be set according to actual needs. Similar to the above-mentioned first blocking structure 13, it can also be set as a filter screen, grid and other structures, which will not be elaborated here. As long as the kinetic energy of the refrigerant can be absorbed, the second blocking structure blocking the refrigerant spray belongs to the function of blocking. When the host is separated from the treatment handle, the second blocking structure can limit the flow rate of the refrigerant medium, absorb the kinetic energy of the refrigerant medium, slow down the refrigerant speed, and avoid the refrigerant spraying out and freezing the user at the moment of separation.
[0048] The second blocking structure cooperates with the first blocking structure 13. By absorbing the kinetic energy of the refrigerant medium through two layers of blocking structures and slowing down the refrigerant speed, it can better avoid the refrigerant spraying out and freezing the user at the moment of separation.
[0049] The installation positions of the second blocking structure and the first blocking structure 13 can be selected according to actual needs. In one embodiment, the first blocking structure 13 is installed at a position of the first adapter 11 close to the second adapter 12, and the second blocking structure is installed at a position of the first adapter 11 away from the second adapter 12. First, the first blocking structure 13 absorbs part of the kinetic energy of the refrigerant, and then the second blocking structure further absorbs part of the kinetic energy of the refrigerant, which can better slow down the refrigerant speed and reduce the instantaneous spraying pressure of the refrigerant.
[0050] The fixing method of the second blocking structure can be selected according to actual needs. It can be connected to the inner wall of the refrigerant passage 15 or placed in the middle of the refrigerant passage 15.
[0051] In one embodiment, the second blocking structure protrudes from the inner wall of the first adapter 11 and is inclined towards the second adapter 12. Thus, the second blocking structure does not affect the flow of the refrigerant from the first adapter 11 to the second adapter 12 and can guide the gaseous refrigerant. However, when the treatment handle is pulled out from the main unit, the second blocking structure can absorb the kinetic energy of the outward ejection of the gaseous refrigerant, can slow down the flow rate of the refrigerant that will be ejected from the first adapter 11, and avoid the refrigerant from ejecting at the moment of detachment and freezing the user.
[0052] The present utility model also provides a treatment handle (not shown in the figure), and the treatment handle includes a handle assembly (not shown in the figure), a refrigerant pipe assembly 20, and the anti-spray cold connection member 10 as described above. One end of the refrigerant pipe assembly 20 is hermetically connected to the second adapter 12 of the anti-spray cold connection member 10, and the other end of the refrigerant pipe assembly 20 is hermetically connected to the handle assembly.
[0053] Specifically, the treatment handle includes a handle assembly, a refrigerant pipe assembly 20, and an anti-spray cold connection member 10. The anti-spray cold connection member 10 is connected to the handle assembly through the refrigerant pipe assembly 20. The refrigerant pipe assembly 20 extends from one end of the treatment handle near the main unit to the treatment end of the treatment handle to guide the refrigerant medium from the anti-spray cold connection member 10 to the treatment end for cooling the overheated electrode. As Figure 1 and Figure 2 , the handle assembly is provided with a handle joint 30. The refrigerant pipe assembly 20 and the anti-spray cold connection member 10 are both arranged on the handle joint 30. The handle joint 30 is used for plugging into the main unit so that the first adapter 11 is communicated with the refrigerant pipeline of the main unit, and the refrigerant pipeline in the main unit is communicated with the refrigerant pipeline in the treatment handle.
[0054] For the specific structure of the anti-spray cold connection member 10, refer to the above embodiment. Since the treatment handle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.
[0055] In the embodiment of the present utility model, the refrigerant pipe assembly 20 includes a refrigerant pipe structure 21, a connection head structure 22, and a sleeve structure 23. One end of the connection head structure 22 is hermetically connected to the refrigerant pipe structure 21, the other end of the connection head structure 22 is hermetically connected to the second adapter 12, the sleeve structure 23 is threadedly connected to the outside of the refrigerant pipe structure 21, and the outer wall of the other end of the connection head structure 22 abuts against the inner wall of the sleeve structure 23 and is fixedly connected to the sleeve structure 23.
[0056] Specifically, the refrigerant pipe assembly 20 is provided to include a refrigerant pipe structure 21, a connector structure 22, and a sleeve structure 23. The refrigerant pipe structure 21 is hermetically connected to the second adapter 12 through the connector structure 22. The connection between the connector structure 22 and the refrigerant pipe structure 21 is a riveting connection. One end of the connector structure 22 is inserted into the refrigerant pipe structure 21. The sleeve structure 23 is sleeved outside the refrigerant pipe structure 21. The connector structure 22 is axially extruded into the interior of the refrigerant pipe structure 21 by an external force. The inner wall of the sleeve structure 23 is provided with a clearance groove. The excess material deformed by the extrusion of the connector structure 22 and the refrigerant pipe structure 21 just fills the clearance groove on the inner wall of the sleeve, thus forming a riveting and sealing connection with axial limit. This sealing structure is more convenient and faster to install, and the sealing connection is more stable. In addition, the connector structure 22 is made of plastic material with good deformation recovery force, and can maintain good sealing performance even after long-term compression.
[0057] In an embodiment of the present invention, the refrigerant pipe assembly 20 further includes a screw 24. One end of the screw 24 is sleeved outside the sleeve structure 23 and abuts against the end face of the sleeve structure 23 away from the connector structure 22. The screw 24 is rotatably connected to the sleeve structure 23. The other end of the screw 24 extends into the second adapter 12 and is threadedly connected to the second adapter 12.
[0058] It should be noted that when the screw 24 is screwed into the second adapter 12, since the screw 24 is rotatably connected to the sleeve structure 23, the rotation of the screw 24 will not drive the sleeve structure 23 to rotate, nor will it drive the refrigerant pipe structure 21 to rotate synchronously, avoiding the twisting and breaking of the pipeline. As Figure 5 , the inner end face of the screw 24 abuts against the outer end face of the sleeve structure 23. Therefore, when the screw 24 is gradually screwed into the second adapter 12, the other end of the connector structure 22 can be driven to gradually extend into the second adapter 12 and be hermetically connected to the second adapter 12. This installation method is more convenient, has a good sealing effect, and will not cause the pipeline structure to break.
[0059] The present invention also provides a treatment device (not shown in the figure), including a main body (not shown in the figure) and the treatment handle as described above.
[0060] Specifically, a refrigerant pipeline is provided in the main body. A connection interface communicating with the refrigerant pipeline is opened on the main body. The treatment handle is plugged into the connection interface of the main body through the anti-spray cold connector 10, so that the refrigerant pipeline in the main body is communicated with the anti-spray cold connector 10 and the refrigerant pipe assembly 20. The refrigerant medium flows from the main body to the treatment handle to cool the electrodes of the treatment handle.
[0061] The specific structure of the treatment handle refers to the above-mentioned embodiments. Since the treatment device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.
[0062] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the technical concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.
Claims
1. A cold spray-proof connector, characterized in that: include: A first adapter, wherein a first end of the first adapter is used to connect to an external host; a second adapter, wherein the second end of the first adapter is connected to the first end of the second adapter, and the second end of the second adapter is used to be connected to an external treatment handle so that the pipeline between the main unit and the treatment handle is in communication; The first blocking structure is arranged in the refrigerant channel formed by the second adapter and the first adapter, and the first blocking structure is used to prevent the refrigerant from spraying out from one end of the first adapter away from the second adapter.
2. The anti-cold spraying connector according to claim 1, characterized in that: A plurality of through holes are formed on the surface of the first blocking structure, and the plurality of through holes are evenly distributed on the surface of the first blocking structure, and the through holes are used for refrigerant to pass through.
3. The anti-cold spraying connector according to claim 2, characterized in that: The axial direction of the through hole is arranged at an angle with the axial direction of the refrigerant channel.
4. The anti-cold spraying connector according to claim 1, characterized in that: The first adapter has a first channel, the second adapter has a second channel, the first channel is connected to the second channel to form the refrigerant channel; The first blocking structure is disposed in the first channel and is clamped and fixed by the wall of the first channel and the end surface of the second adapter; or the first blocking structure is disposed in the second channel and is clamped and fixed by the wall of the second channel and the end surface of the first adapter.
5. The anti-cold spraying connection piece according to claim 4, characterized in that: The first channel includes an inlet section and an outlet section, the diameter of the outlet section is larger than the diameter of the inlet section, the second adapter partly extends into the outlet section, and the second channel is connected to the outlet section; The first blocking structure is installed in the outlet section and is clamped and fixed by the end surface of the outlet section and the end surface of the second adapter.
6. The anti-cold spraying connector according to claim 1, characterized in that: The anti-cold spraying connecting piece also includes a second blocking structure, which is arranged in the refrigerant channel and is used to prevent the refrigerant from spraying out from an end of the first adapter away from the second adapter.
7. A treatment handle, characterized in that: The treatment handle includes a handle assembly, a refrigerant tube assembly, and an anti-blowout cold connection piece as described in any one of claims 1 to 6, one end of the refrigerant tube assembly is sealedly connected to the second adapter of the anti-blowout cold connection piece, and the other end of the refrigerant tube assembly is sealedly connected to the handle assembly.
8. The treatment handle according to claim 7, characterized in that: The refrigerant pipe assembly includes a refrigerant pipe structure, a connector structure and a sleeve structure, one end of the connector structure is sealed and connected to the refrigerant pipe structure, the other end of the connector structure is sealed and connected to the second adapter, the sleeve structure is threadedly connected to the outside of the refrigerant pipe structure, and the outer wall of the other end of the connector structure is abutted against the inner wall of the sleeve structure and fixedly connected to the sleeve structure.
9. The treatment handle according to claim 8, characterized in that: The refrigerant pipe assembly also includes a screw, one end of which is sleeved on the outside of the sleeve structure and abuts against the end surface of the sleeve structure away from the connector structure, the screw is rotatably connected to the sleeve structure, and the other end of the screw extends into the second adapter and is threadedly connected to the second adapter.
10. A therapeutic device, characterized in that: The device comprises a host and a treatment handle as claimed in any one of claims 7 to 9.