Hydrotherapy needle liquid injection head and hydrotherapy needle infusion device

Abstract

The utility model discloses a hydrotherapy needle liquid injection head and a hydrotherapy needle infusion device, and relates to the technical field of medical instruments. The hydro-optical needle liquid injection head comprises a shell, a needle head and a driving mechanism, and the shell is provided with a containing cavity and a liquid inlet channel communicated with the containing cavity; the needle head movably penetrates through the outer wall of the shell, and a liquid outlet channel is formed in the needle head; a liquid passing channel is arranged in the driving mechanism and is communicated with the liquid inlet channel and the liquid outlet channel; the output end of the driving mechanism is detachably connected with the needle head and can drive the needle head to linearly move relative to the shell. The liquid inlet channel, the liquid passing channel and the liquid outlet channel are arranged in the liquid injection head of the hydro-optical needle, through sequential communication of the three channels, liquid enters the shell from the liquid inlet channel, passes through the liquid passing channel to the liquid outlet channel and is conveyed to the needle head, the liquid injection function of the liquid injection head of the hydro-optical needle is completed, and continuity from liquid inlet to liquid outlet is ensured; the needle head is detachably connected with the driving mechanism, so that the needle head is more convenient to replace, equipment is more convenient to maintain, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a liquid injection head for a hydrodermabrasion needle and a liquid infusion device for a hydrodermabrasion needle. Background Art

[0002] Hydrodermabrasion needles are widely used in the medical beauty industry. A hydrodermabrasion needle is an injection-based skin care therapy, usually used together with a hydrodermabrasion syringe to inject the required beauty injection agent into the dermal layer close to the epidermis. Therefore, the solution needs to be injected into the syringe before each injection.

[0003] In the prior art, a hydrodermabrasion needle usually includes a syringe barrel, a hydrodermabrasion needle head and a hose. Before use, it is necessary to connect the hose between the infusion syringe barrel and the hydrodermabrasion needle head, and the injection liquid can be accurately transported to the designated position under the skin through the hose. However, when loading the liquid into the syringe barrel, the hose needs to be pulled out from the syringe barrel so that the liquid can be sucked into the syringe barrel; at the same time, when replacing the hydrodermabrasion needle, that is, when replacing needles of different lengths or types, the hose also needs to be pulled out to install a new hydrodermabrasion needle head. In both of the above situations, the hose needs to be pulled out, and the disassembly and replacement of the hydrodermabrasion needle head are inconvenient. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a liquid injection head for a hydrodermabrasion needle and a liquid infusion device for a hydrodermabrasion needle, aiming to solve the technical problems of inconvenient disassembly during the disassembly and assembly process of the hose and easy leakage and waste of liquid injection agents when the hydrodermabrasion needle head is connected to the syringe barrel with a hose.

[0005] To achieve the above purpose, a liquid injection head for a hydrodermabrasion needle proposed by the utility model includes:

[0006] A housing, which is provided with a cavity and a liquid inlet channel communicating with the cavity;

[0007] A needle head, which movably penetrates through the outer wall of the housing, and an outlet channel is provided inside the needle head; and

[0008] A driving mechanism, which is provided with a liquid passing channel inside, and the liquid passing channel communicates with the liquid inlet channel and the outlet channel; the output end of the driving mechanism is detachably connected to the needle head and can drive the needle head to linearly move relative to the housing.

[0009] In an embodiment, the driving mechanism includes a bracket and a moving sub-push rod. The bracket is arranged inside the cavity. The bracket sleeves the moving sub-push rod. The moving sub-push rod is internally provided with the liquid passing channel. A magnetic ring is sleeved on the moving sub-push rod, and a coil is sleeved on the bracket. The needle head is clamped to the moving sub-push rod; the coil can drive the magnetic ring to drive the moving sub-push rod and the needle head to linearly move relative to the housing when being electrified.

[0010] In one embodiment, the injection head of the hydrodermabrasion needle further includes a sealing sleeve. The sealing sleeve is sleeved on the outer wall of the mover push rod and is disposed close to the liquid inlet passage. One end of the sealing sleeve is connected to the bracket, and the other end of the sealing sleeve is connected to the mover push rod. A closed liquid passing cavity is formed by the inner wall of the sealing sleeve and the inner wall of the housing near one end of the liquid inlet passage, and the liquid passing cavity is communicated with the liquid inlet passage.

[0011] In one embodiment, the sealing sleeve has a telescopic section and two connecting sections. The telescopic section is respectively connected to one of the connecting sections. One of the connecting sections is connected to the bracket, and the other connecting section is connected to the mover push rod. A plurality of first grooves and a plurality of second grooves are formed in the telescopic section along the length direction of the telescopic section. The directions of each first groove and each second groove are opposite, and there is one second groove between any two adjacent first grooves.

[0012] In one embodiment, the liquid injection head of the hydrodermabrasion needle further includes a sealing valve. The sealing valve includes a valve body ring and a valve sheet which are connected to each other. The valve body ring is located in the liquid passing cavity, is disposed on the periphery of the sealing sleeve, and is connected to the inner wall of the housing. The valve body is provided with a valve port communicating the liquid inlet passage and the liquid passing cavity, and the valve sheet is disposed in the valve port and covers the liquid inlet passage.

[0013] In one embodiment, a limiting groove is formed at one end of the mover push rod facing the needle, and a connecting portion matching the limiting groove is formed at one end of the needle facing the mover push rod. The connecting portion is clamped in the limiting groove.

[0014] In one embodiment, the housing includes an upper shell and a lower shell. The upper shell is screwed to the lower shell. A limiting space is formed between the inner peripheral wall of the upper shell and the mover push rod, and the mover push rod makes a linear reciprocating motion in the limiting space.

[0015] In one embodiment, the driving mechanism further includes a shock absorber and a spring. The shock absorber is sleeved on one end of the mover push rod and is disposed close to the liquid outlet passage. The spring is sleeved on the end of the mover push rod away from the mover push rod and is disposed close to the liquid outlet passage.

[0016] In one embodiment, the liquid injection head of the hydrodermabrasion needle further includes an adjusting cover. The adjusting cover is covered on the outer wall of the needle and is screwed to the housing. The needle includes a wafer. The wafer is located at one end of the needle and communicates with the liquid outlet passage. The adjusting cover is provided with an opening for the wafer to be exposed.

[0017] The present utility model further provides a hydrodermabrasion needle infusion device, and the hydrodermabrasion needle infusion device includes:

[0018] A liquid injection head of the hydrodermabrasion needle;

[0019] The infusion main body of the hyaluronic acid injection needle is detachably connected to the injection liquid head of the hyaluronic acid injection needle.

[0020] The technical solution of the present utility model is provided with a liquid inlet channel, a liquid passing channel, and a liquid outlet channel in the injection liquid head of the hyaluronic acid injection needle. Through the sequential connection of the three channels, the liquid enters the shell from the liquid inlet channel, passes through the liquid passing channel, and is transmitted to the needle through the liquid outlet channel, completing the injection function of the injection liquid head of the hyaluronic acid injection needle and ensuring the continuity of liquid inlet to liquid outlet; while the detachable connection between the needle and the driving mechanism makes it more convenient to replace the needle and maintain the equipment, and the operation is more convenient. Description of the Drawings

[0021] 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 drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0022] Figure 1 It is a structural cross-sectional view of the injection liquid head of the hyaluronic acid injection needle provided by the present utility model;

[0023] Figure 2 For Figure 1 The partial enlarged view at A in

[0024] Figure 3 It is a structural cross-sectional view of the driving mechanism provided by the present utility model;

[0025] Figure 4 It is a structural cross-sectional view of the driving mechanism and the shell provided by the present utility model;

[0026] Figure 5 It is a schematic diagram of the liquid flow direction provided by the present utility model.

[0027] Explanation of the reference numerals in the drawings:

[0028] 100, injection liquid head of the hyaluronic acid injection needle; 1, shell; 11, upper shell; 12, lower shell; 13, adjusting cover; 14, limiting space; 2, needle; 21, chip; 3, driving mechanism; 31, sealing sleeve; 31a, telescopic section; 31b, connecting section; 31c, first groove; 31d, second groove; 32, moving push rod; 33, bracket; 34, sealing valve; 35, magnetic ring; 36, coil; 37, shock absorber; 38, spring; 39, liquid passing cavity; 41, liquid inlet channel; 42, liquid passing channel; 43, liquid outlet channel.

[0029] The realization of the purpose, functional characteristics, and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the drawings. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. 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 of the features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The present utility model provides a liquid injection head for a hydrodermabrasion needle.

[0034] Please refer to Figures 1 to 5 , in an embodiment of the present utility model, the liquid injection head for a hydrodermabrasion needle includes: a housing 1, a needle 2, and a driving mechanism 3. The housing 1 is provided with a cavity and a liquid inlet passage 41 communicating with the cavity; the needle 2 is movably inserted through the outer wall of the housing 1, and a liquid outlet passage 43 is provided in the needle 2; and a liquid passing passage 42 is provided in the driving mechanism 3, and the liquid passing passage 42 communicates with the liquid inlet passage 41 and the liquid outlet passage 43; the output end of the driving mechanism 3 is detachably connected to the needle 2 and can drive the needle 2 to linearly move relative to the housing 1.

[0035] In this embodiment, the injection head of the hydrodermabrasion needle is used to directly inject liquids such as various skin nutrient components into the dermis of the skin and is used together with the infusion head of the hydrodermabrasion. The housing 1 is used to carry the structure of the entire injection head of the hydrodermabrasion needle. The cavity is used to accommodate the needle 2 and the driving mechanism 3. The needle 2 is used to transport liquids such as various skin nutrient components including hyaluronic acid and vitamins. The driving mechanism 3 is used to drive the needle 2 to move to complete the transportation of liquids such as skin nutrient components. Correspondingly, the liquid inlet channel 41 is connected to the cavity of the housing 1, and the liquid enters the housing 1 from the liquid inlet channel 41. The liquid passing channel 42 is arranged between the liquid inlet channel 41 and the liquid outlet channel 43, and the liquid is injected out through the liquid outlet channel 43; combined with Figure 5 , Figure 5 is a schematic diagram of the flow direction of liquids such as skin nutrient components. The liquids such as skin nutrient components enter the housing 1 from the liquid inlet channel 41, pass through the liquid passing channel 42 to the liquid outlet channel 43, and are finally injected into the human skin through the needle 2.

[0036] The technical solution of the present utility model is provided with a liquid inlet channel 41, a liquid passing channel 42, and a liquid outlet channel 43 in the injection head of the hydrodermabrasion needle. Through the sequential connection of the three channels, the liquid enters the housing 1 from the liquid inlet channel 41, passes through the liquid passing channel 42 to the liquid outlet channel 43, and is transmitted to the needle 2, completing the injection function of the injection head of the hydrodermabrasion needle and ensuring the continuity from liquid inlet to liquid outlet; and the detachable connection between the needle 2 and the driving mechanism 3 makes it more convenient to replace the needle 2 and maintain the equipment, and the operation is more convenient.

[0037] In an embodiment of the present utility model, the driving mechanism 3 includes a bracket 33 and a mover push rod 32. The bracket 33 is arranged in the cavity. The bracket 33 sleeved with the mover push rod 32. The internal of the mover push rod 32 is provided with a liquid passing channel 42. A magnetic ring 35 is sleeved on the mover push rod 32. A coil 36 is sleeved on the bracket 33. The needle 2 is clamped to the mover push rod 32; the coil 36 can drive the magnetic ring 35 to drive the mover push rod 32 when powered on.

[0038] Combined with Figure 3, in this embodiment, the injection head of the hydrodermabrasion needle has a first motion state and a second motion state; in the first motion state, the mover push rod 32 is disengaged from the housing 1, the coil 36 is energized in the forward direction, and the magnetic field generated by the coil 36 interacts with the magnetic ring 35 to generate an attractive force, so that the mover push rod 32 moves and drives the needle 2 to move from the liquid inlet channel 41 direction to the liquid outlet channel 43 direction; in the second motion state, the mover push rod 32 abuts against the housing 1, the coil 36 is energized in the reverse direction, and the magnetic field generated by the coil 36 interacts with the magnetic ring 35 to generate a repulsive force, so that the mover push rod 32 moves and drives the needle 2 to move from the liquid outlet channel 43 direction to the liquid inlet channel 41 direction until it returns to the initial position. The mover push rod 32 is made of metal or other strong materials and has sufficient strength and rigidity. The magnetic ring 35 interacts with the coil 36 on the bracket 33 to achieve precise control of the mover push rod 32 through the electromagnetic principle. At the same time, the coil 36 has pins and leads as conductive paths, and the leads are welded to the pins, allowing current to pass through the coil 36 from the power supply to generate a magnetic field. The bracket 33 does not move with the movement of the mover push rod 32. By changing the energization state of the coil 36, it is controlled whether the interaction force between the magnetic field generated by the coil and the magnetic ring 35 is an attractive force or a repulsive force, thereby realizing the switching of the mover push rod 32 between the first motion state and the second motion state, that is, completing the movement from the liquid inlet channel 41 direction to the liquid outlet channel 43 direction and the movement from the liquid outlet channel 43 direction to the liquid inlet channel 41 direction. The clamping relationship between the needle 2 and the mover push rod 32 enables the movement of the mover push rod 32 to directly drive the needle 2 to move relative to the housing 1. The above setting method realizes precise control of the movement of the mover push rod 32 and the needle 2, improves the accuracy during the injection process, and also increases the flexibility of the mechanism.

[0039] In an embodiment of the present utility model, the injection head of the hydrodermabrasion needle further includes a sealing sleeve 31. The sealing sleeve 31 is sleeved on the outer wall of the mover push rod 32 and is disposed close to the liquid inlet channel 41. One end of the sealing sleeve 31 is connected to the bracket 33, and the other end of the sealing sleeve 31 is connected to the mover push rod 32. The sealing sleeve 31 and the inner wall of the housing 1 near one end of the liquid inlet channel 41 enclose a closed liquid passing cavity 39, and the liquid passing cavity 39 is communicated with the liquid inlet channel 41.

[0040] Combined with Figure 2, in this embodiment, the sealing sleeve 31 is made of silica gel and is in the form of a sealing cover. It firmly fixes and connects the support 33 and is sleeved on the outer wall of the mover push rod 32. The liquid passage cavity 39 is a closed space formed between the sealing cover 31 and the housing 1. The setting of the liquid passage cavity 39 ensures that the liquid will not leak outwards, guaranteeing its sealing performance. During the liquid injection process of the hydrodermoneedle injection head, one end of the sealing cover 31 connected to the mover push rod 32 folds and expands as the mover push rod 32 moves, while the end of the sealing cover 31 connected to the support 33 does not move with the mover push rod 32. The sealing sleeve 31 closely adheres to the outer wall of the mover push rod 32, effectively preventing the leakage of liquids such as skin nutrient components at the connection between the liquid passage 42 and the liquid inlet passage 41, ensuring the accuracy and integrity of the delivery of liquids such as skin nutrient components. At the same time, the presence of the sealing sleeve 31 reduces the possibility of external pollutants entering the liquid passage 42, improving the safety of liquid infusion. The sealing sleeve 31 being arranged close to the liquid inlet passage 41 helps to seal in the early stage when liquids such as skin nutrient components enter, reducing the leakage risk during the liquid delivery process.

[0041] In an embodiment of the present utility model, the sealing sleeve 31 has a telescopic section 31a and two connecting sections 31b. The telescopic section 31a is respectively connected to one connecting section 31b. One of the connecting sections 31b is connected to the support, and the other connecting section 31b is connected to the mover push rod 32. The telescopic section 31a is provided with a plurality of first grooves 31c and a plurality of second grooves 31d along the length direction of the telescopic section 31a. Each first groove 31c and each second groove 31d face in opposite directions, and there is a second groove 31d between any two adjacent first grooves 31c.

[0042] Combined with Figure 2 , in this embodiment, the telescopic section 31a provides a basis for the sealing sleeve 31 to be telescopic, and the connecting sections 31b are used to connect the support 33 and the mover push rod 32 respectively. Correspondingly, the telescopic section 31a is used to provide a deformation margin for the sealing sleeve 31 when the mover push rod 32 moves from the liquid inlet direction to the liquid outlet direction, preventing sealing failure; the telescopic section 31a and one of the connecting sections 31b connected to the mover push rod fold and expand as the mover push rod 32 moves, while the other connecting section 31b connected to the support 33 does not change with the movement of the mover push rod 32. Further, combined with Figure 2 , the first groove 31c is a groove facing upwards, the second groove 31d is a groove facing downwards, the sealing sleeve 31 is made of silica gel, and the first groove 31c and the second groove 31d face in opposite directions, which can provide more deformation margin for the telescopic sealing sleeve 31. The above setting method helps to maintain the sealing effect of the sealing sleeve 31.

[0043] In one embodiment of the utility model, the hyaluronic acid injection head also includes a sealing valve 34, which includes a valve body ring and a valve sheet connected to each other. The valve body ring is located in the liquid passage cavity. The valve body ring is arranged on the periphery of the sealing sleeve 31 and is connected to the inner wall of the shell 1. The valve body ring is provided with a valve port connecting the liquid inlet channel 41 and the liquid passage cavity 39. The valve sheet is arranged in the valve port and covers the liquid inlet channel.

[0044] Combination Figure 2 In this embodiment, the valve body ring is the main part of the sealing valve 34, and the valve plate is used as a component for the sealing valve 34 to control the communication between the liquid passage 42 and the liquid inlet channel 41. Accordingly, the sealing valve 34 is made of silicone. The sealing valve 34 has two states, one is the valve plate is in an open state, and the other is the valve plate is in a closed state. In the closed state, the valve plate is tightly fitted with the valve body ring to form a sealing surface to prevent the leakage of liquid in the liquid passage 42. Further, when the movable push rod 32 moves from the direction of the liquid inlet channel 41 to the direction of the liquid outlet channel 43, the valve plate is in an open state with the movement of the movable push rod 32, and the liquid such as the skin nutrients enters the liquid passage 42 along the liquid inlet channel 41; when the movable push rod 32 moves from the direction of the liquid outlet channel 43 to the direction of the liquid inlet channel 41, the valve plate is in a closed state with the movement of the movable push rod 32, and the liquid such as the skin nutrients is blocked by the valve plate to prevent backflow. The above arrangement prevents the backflow of liquids such as skin nutrients during the infusion process, ensures that the liquids such as skin nutrients flow unidirectionally to the needle 2, and improves the safety of the infusion.

[0045] In one embodiment of the utility model, a limiting groove is formed at one end of the movable push rod 32 facing the needle 2, and a connecting portion matching the limiting groove is formed at one end of the needle 2 facing the movable push rod 32, and the connecting portion is clamped in the limiting groove.

[0046] Combination Figure 2 In this embodiment, the limit groove is used to provide positioning and guidance for the needle 2, ensuring that the needle 2 moves smoothly along the predetermined path, and the connection portion is set for the needle 2 to cooperate with the limit groove. The above-mentioned setting method ensures the precise matching and positioning between the needle 2 and the movable push rod 32, prevents the needle 2 from being offset or dislocated during the infusion process, simplifies the connection method between the needle 2 and the movable push rod 32, and facilitates assembly and maintenance.

[0047] In one embodiment of the utility model, the shell 1 includes an upper shell 11 and a lower shell 12. The upper shell 11 is screwed to the lower shell 12. A limiting space 14 is formed between the inner circumferential wall of the upper shell 11 and the movable push rod 32. The movable push rod 32 performs linear reciprocating motion in the limiting space 14.

[0048] Combination Figure 4, in this embodiment, the limiting space 14 is used to limit the movement range of the mover push rod 32 to prevent it from exceeding the predetermined movement trajectory. The upper shell 11 is arranged close to the liquid outlet channel 43, and the lower shell 12 is arranged close to the liquid inlet channel 41. The two are connected by screwing, and the screwing here can be in the form of bolt connection or threaded connection, which is not limited; and the screwing method provides the structural stability and firmness, ensuring that when the mover push rod 32 moves, the housing 1 will not have relative displacement. When it is necessary to replace components or perform maintenance, it can be easily disassembled and assembled.

[0049] In an embodiment of the present utility model, the driving mechanism 3 further includes a shock absorber 37 and a spring 38. The shock absorber 37 is sleeved on one end of the mover push rod 32 and is arranged close to the liquid outlet channel 43, and the spring 38 is sleeved on the end of the mover push rod 32 far from the mover push rod 32 and is arranged close to the liquid outlet channel 43.

[0050] Combined with Figure 3 , in this embodiment, the shock absorber 37 usually contains damping materials. When the mover push rod 32 moves, the damping mechanism inside the shock absorber 37 can absorb and consume energy to reduce vibration. When the mover push rod 32 is subjected to an attractive force, the spring 38 can store energy and provide power for the mover push rod 32; when the mover push rod 32 is subjected to a repulsive force, the spring 38 can release energy and provide resistance for the mover push rod 32. The above setting method helps to absorb shock when the mover push rod 32 pushes the needle 2 for liquid injection. The use of the spring 38 can provide a buffering effect. When the mover push rod 32 moves quickly, the spring 38 can reduce the oscillation caused by inertia, improve the stability of the system, and at the same time provide a smoother and more accurate movement.

[0051] In an embodiment of the present utility model, the hydrodermabrasion injection head further includes an adjustment cap 13. The adjustment cap 13 covers the outer wall of the needle 2 and is screwed to the housing 1. The needle 2 includes a wafer 21. The wafer 21 is located at one end of the needle 2 and communicates with the liquid outlet channel 43. The adjustment cap 13 is provided with an opening for the wafer 21 to be exposed.

[0052] In this embodiment, the adjustment cap 13 is connected to the housing 1 by threads, which is convenient for quickly disassembling and replacing the needle 2. At the same time, the adjustment cap 13 is fixed to the housing 1 by screwing, and can accurately position the depth and angle of the needle 2 to ensure that the liquid is delivered to the predetermined skin layer. The wafer 21 is used to directly deliver liquids such as skin nutrient components in the infusion channel to the skin tissue. The wafer 21 usually has a plurality of micropores, and these micropores enable the liquids such as skin nutrient components to penetrate into the skin in the form of spray or microdroplets. Through the adjustment cap 13, the position, angle or the depth of contact with the skin of the wafer 21 can be adjusted. When not in use, the adjustment cap 13 covers and protects the wafer 21 to prevent it from being contaminated or accidentally damaged.

[0053] The present utility model further provides a hydrodermabrasion needle infusion device, which includes a hydrodermabrasion needle injection head and a hydrodermabrasion needle infusion main body. The specific structure of the hydrodermabrasion needle injection head refers to the above-mentioned embodiments. Since this hydrodermabrasion needle infusion device adopts all the technical solutions of 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 here one by one.

[0054] Among them, the hydrodermabrasion needle infusion main body is detachably connected to the hydrodermabrasion needle injection head. In this embodiment, the hydrodermabrasion needle infusion device is used in the field of medical aesthetics. The hydrodermabrasion needle infusion main body is used to store the liquid to be injected, such as nutritional components, etc. The hydrodermabrasion needle infusion main body can be an infusion pump, an infusion chamber, etc. here. One end of the hydrodermabrasion needle infusion main body is detachably connected to the liquid inlet channel 41 of the hydrodermabrasion needle injection head. The detachable connection methods here include but are not limited to snap connection, screw connection, etc. The hydrodermabrasion needle infusion main body transports the liquid to the hydrodermabrasion needle injection head, passes through the liquid inlet channel 41, the liquid passing channel 42 and the liquid outlet channel 43 of the hydrodermabrasion needle injection head, and finally is transported to the human skin through the wafer 21. The above setting method can accurately control the depth and amount of liquid delivery, and at the same time ensure the simplicity and safety of the operation. The detachable design also helps with the cleaning and maintenance of the device, as well as the quick replacement of the injection head in different treatments.

[0055] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A water light needle injection head, characterized in that: The water-light injection head includes: A housing provided with a cavity and a liquid inlet channel communicating with the cavity; A needle movably penetrating through the outer wall of the housing, with a liquid outlet channel provided inside the needle; and A driving mechanism with a liquid passing channel inside, the liquid passing channel communicating with the liquid inlet channel and the liquid outlet channel; the output end of the driving mechanism is detachably connected to the needle and can drive the needle to linearly move relative to the housing.

2. The water-light injection head according to claim 1, characterized in that, The driving mechanism includes a bracket and a moving push rod. The bracket is arranged inside the cavity. The bracket sleeves the moving push rod. The liquid passing channel is provided inside the moving push rod. A magnetic ring is sleeved on the moving push rod, and a coil is sleeved on the bracket. The needle is clamped to the moving push rod; the coil can drive the magnetic ring to drive the moving push rod and the needle to linearly move relative to the housing when electrified.

3. The water-light injection head according to claim 2, wherein The water-light injection head further includes a sealing sleeve sleeved on the outer wall of the moving push rod and arranged close to the liquid inlet channel. One end of the sealing sleeve is connected to the bracket, and the other end of the sealing sleeve is connected to the moving push rod. A closed liquid passing cavity is formed by the enclosure of the sealing sleeve and the inner wall of the housing at one end close to the liquid inlet channel, and the liquid passing cavity communicates with the liquid inlet channel.

4. The water-light injection head according to claim 3, characterized in that, The sealing sleeve has a telescopic section and two connecting sections. The telescopic section is respectively connected to one of the connecting sections. One of the connecting sections is connected to the bracket, and the other connecting section is connected to the moving push rod. A plurality of first grooves and a plurality of second grooves are formed along the length direction of the telescopic section. Each of the first grooves and each of the second grooves face in opposite directions, and there is one second groove between any two adjacent first grooves.

5. The water-light injection head according to claim 4, wherein The water-light injection head further includes a sealing valve. The sealing valve includes a valve body ring and a valve plate connected to each other. The valve body ring is located inside the liquid passing cavity, arranged on the periphery of the sealing sleeve and connected to the inner wall of the housing; the valve body ring is provided with a valve port communicating the liquid inlet channel and the liquid passing cavity, and the valve plate is arranged inside the valve port and covers the liquid inlet channel.

6. The water-light injection head according to claim 5, wherein, One end of the moving push rod facing the needle forms a limiting groove, and one end of the needle facing the moving push rod forms a connecting portion matching the limiting groove. The connecting portion is clamped in the limiting groove.

7. The water-light injection head according to any one of claims 2 to 6, characterized in that The housing includes an upper shell and a lower shell. The upper shell is screwed to the lower shell. A limiting space is formed between the inner peripheral wall of the upper shell and the moving push rod, and the moving push rod makes a linear reciprocating motion inside the limiting space.

8. The water-light injection head according to claim 7, wherein The driving mechanism further includes a shock absorber and a spring. The shock absorber is sleeved on one end of the moving push rod and arranged close to the liquid outlet channel, and the spring is sleeved on the end of the moving push rod away from the moving push rod and arranged close to the liquid outlet channel.

9. The water-light injection head according to claim 1, characterized in that, The water-light injection head further includes an adjusting cover covering the outer wall of the needle and screwed to the housing. The needle includes a wafer located at one end of the needle and communicating with the liquid outlet channel. The adjusting cover is provided with an opening for the wafer to be exposed.

10. A water light needle infusion device, characterized in that: The water light needle infusion device comprises: The water light needle injection head according to any one of claims 1 to 9; The hyaluronic acid needle infusion body is detachably connected to the hyaluronic acid needle infusion head.

Images