Laser treatment hand tool

Abstract

The utility model relates to the technical field of laser treatment, and particularly discloses a laser treatment hand tool which comprises a shell, a needle body, an optical fiber and a negative pressure tube, the needle body is arranged at the far end of the shell, the far end of the optical fiber extends into the needle body, the far end of the shell is provided with a negative pressure cavity, and the negative pressure tube is arranged in the negative pressure cavity. The far end part of the needle body is positioned in the negative pressure cavity, the negative pressure tube is communicated with the negative pressure cavity, and the negative pressure tube is configured to suck the negative pressure cavity to a negative pressure state; according to the scheme, during laser treatment, the far end of the shell can be attached to the skin of a patient, the negative pressure cavity is sucked to be in the negative pressure state through the negative pressure pipe, under the negative pressure effect, the skin of the patient can be automatically attached to the tip end of the needle body, the needle body is made to penetrate into the skin, and therefore the convenience and stability of needle body imbedding can be improved; and the condition that the needle body is difficult to place can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laser treatment, in particular to a laser treatment hand tool. Background Art

[0002] Cosmetic laser therapy uses a laser device to emit a beam of light of a specific wavelength, which acts on the skin to improve skin problems and enhance skin quality. However, cosmetic laser therapy typically acts on the surface of the skin, where it is easily reflected and absorbed by the surface. This prevents the laser from absorbing the underlying tissue, thus weakening the therapeutic effect of the cosmetic laser therapy.

[0003] Laser acupuncture is a related technology. Through mechanical stimulation from microneedles and the action of laser energy, cosmetic laser acupuncture can destroy pigments, stimulate collagen regeneration, and dilate capillaries, thereby achieving cosmetic effects. However, these cosmetic laser acupuncture needles are typically inserted into the skin manually or electrically, which can lead to inadequate insertion or even difficulty. Utility Model Content

[0004] The utility model discloses a laser treatment hand tool, which is used to solve the technical problem of difficulty in inserting a laser needle into the skin in the related art.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] The present application provides a laser therapy handpiece, which includes a shell, a needle body, an optical fiber and a negative pressure tube, wherein the needle body is arranged at the distal end of the shell, the distal end of the optical fiber extends into the needle body, the distal end of the shell is provided with a negative pressure cavity, the distal end of the needle body is located in the negative pressure cavity, the negative pressure tube is connected to the negative pressure cavity, and the negative pressure tube is configured to suck the negative pressure cavity to a negative pressure state.

[0007] Furthermore, the shell is provided with a mounting portion protruding from the bottom wall of the negative pressure chamber in the negative pressure chamber. Along the axial direction of the shell, the thickness of the mounting portion is less than the depth of the negative pressure chamber. The mounting portion is provided with a mounting hole passing through the mounting portion, and the needle body is inserted into the mounting hole.

[0008] Furthermore, the mounting portion is provided in the middle of the negative pressure chamber, so that the negative pressure chamber forms a guide channel surrounding the mounting portion.

[0009] Furthermore, the shell includes a shell body and a needle seat, the needle seat is arranged at the distal end of the shell body, and the negative pressure chamber and the mounting portion are arranged on the needle seat.

[0010] Furthermore, the needle seat is embedded in the distal end of the shell body; or, the needle seat is glued to the distal end of the shell body; or, the needle seat is clamped to the distal end of the shell body.

[0011] Furthermore, the needle seat is provided with a radially outwardly protruding flange, and the needle seat is embedded in the distal end portion of the shell body through the flange.

[0012] Furthermore, the laser therapy handpiece further includes a driving unit, which is disposed in the housing and connected to the needle body to drive the needle body to move along its axial direction.

[0013] Furthermore, the laser therapy handpiece also includes an adapter, the proximal end of the adapter is connected to the drive unit, the needle body is arranged at the distal end of the adapter and is inserted into the mounting hole, and the adapter is provided with a avoidance opening for avoiding the optical fiber, and the optical fiber extends into the needle body through the avoidance opening.

[0014] Furthermore, along the axial direction of the housing, the distal end of the adapter is in guide cooperation with the housing.

[0015] The technical solution adopted by the utility model can achieve the following beneficial effects:

[0016] The laser therapy handpiece of the present application can be placed on the patient's skin at the distal end during laser therapy, and the negative pressure chamber can be pumped to a negative pressure state through the negative pressure tube. The negative pressure state of the negative pressure chamber can exert a pulling effect on the patient's skin, so that the part of the patient's skin located in the negative pressure chamber can move and approach the tip of the needle body until the needle body penetrates the skin. This can avoid the situation where the needle body is not inserted into the right place or even has difficulty in insertion, and significantly improve the convenience and stability of the needle body penetrating the skin.

[0017] At the same time, through negative pressure suction, the skin automatically approaches the sharp tip of the needle under traction, making the insertion process of the sharp tip of the needle smoother and slower, reducing mechanical stimulation, improving the patient's comfort and alleviating discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a laser therapy handpiece according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the internal structure of the laser therapy handpiece according to an embodiment of the present application;

[0021] Figure 3 This is one of the structural diagrams of the needle seat in the embodiment of the present application;

[0022] Figure 4 This is the second structural diagram of the needle seat in the embodiment of the present application;

[0023] Figure 5 This is an exploded view of the laser therapy handpiece according to an embodiment of the present application.

[0024] In the picture:

[0025] 100. Shell; 110. Shell body; 120. Needle seat; 121. Negative pressure chamber; 122. Mounting portion; 1221. Mounting hole; 123. Flange; 124. Guide slot; 125. Negative pressure connector; 200. Needle body; 300. Optical fiber; 400. Negative pressure tube; 500. Drive unit; 600. Adapter; 610. Avoidance port. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0028] In the related art, laser therapy handpieces used for cosmetic laser treatments typically include a handpiece housing, a needle, and an optical fiber. The needle is located at the distal end of the handpiece housing and has a portion exposed outside the housing to facilitate insertion into the human skin. The distal end of the optical fiber extends into the needle. After the needle penetrates the skin, the laser beam transmitted by the optical fiber is collimated and emitted from the distal end of the optical fiber, passing through the distal orifice of the needle body and acting on the target to be treated (e.g., pigment particles) within the skin. However, during research, the inventors discovered that if the needle body is manually or electrically inserted into the skin, the portion of the needle body exposed outside the handpiece housing is relatively short (typically 2mm to 3mm), and the skin surface is prone to wrinkling and deformation when subjected to external forces, making it difficult for the needle body to effectively penetrate the patient's skin. This can result in the needle body not being able to penetrate properly or even being inserted with difficulty.

[0029] In view of this, the embodiment of the present application discloses a laser treatment hand tool. Figures 1 to 5 , the laser therapy handpiece provided in the embodiment of the present application is described in detail through specific embodiments and their application scenarios.

[0030] See Figures 1 to 5 The embodiment of the present application discloses a laser treatment handpiece, which is used for cosmetic laser treatment. The laser treatment handpiece can introduce laser light of a specific wavelength (for example, 632.8um or 670um) into the subcutaneous tissue of the human body and perform laser irradiation on the target to be treated in the human skin (for example, pigment particles, acne, etc.).

[0031] In the examples of this application, see Figure 5 The disclosed laser treatment handpiece includes a shell 100, a needle body 200, an optical fiber 300 and a negative pressure tube 400, wherein the shell 100 is the basic component of the laser treatment handpiece and can provide an installation base for the needle body 200, the optical fiber 300 and the negative pressure tube 400. Exemplarily, the shell 100 is a columnar structure as a whole, which has a storage space, and the needle body 200 is arranged at the distal end of the shell 100. Exemplarily, multiple needle bodies 200 can be arranged at the distal end of the shell 100 in an array. The optical fiber 300 extends into the needle body 200 through the storage space of the shell 100 and can be fixed to the needle body 200 by gluing. It can be understood that the distal end of the needle body 200 in the embodiment of the present application is a sharp tip. When performing laser treatment on the skin, the sharp tip has a good puncture effect and can easily penetrate the surface layer of the skin and enter the skin.

[0032] In the examples of this application, see Figure 1 and Figure 2The distal end of the housing 100 is provided with a negative pressure chamber 121 and an opening communicating with the negative pressure chamber 121. The distal end of the needle body 200 is located within the negative pressure chamber 121. It should be understood that during laser treatment, the distal end of the needle body 200 has a portion protruding from the bottom wall of the negative pressure chamber 121 to enable the operation of piercing the skin. The distal end of the negative pressure tube 400 is communicated with the negative pressure chamber 121, and the proximal portion of the negative pressure tube 400 is connected to a negative pressure source. For example, the negative pressure source can be a vacuum pump. When the negative pressure source is turned on, the negative pressure tube 400 can draw the negative pressure chamber 121 to a negative pressure state.

[0033] During laser treatment, the distal end of the shell 100 can be attached to the patient's skin. When the negative pressure source is turned on, the patient's skin blocks the opening of the negative pressure chamber 121. At this time, a vacuum negative pressure environment is formed between the patient's skin and the negative pressure chamber 121. When the negative pressure chamber 121 is in a negative pressure state, the vacuum negative pressure environment can pull the patient's skin, so that the part of the patient's skin located in the negative pressure chamber 121 can move and approach the sharp tip of the needle body 200 until the sharp tip of the needle body penetrates the skin. In this way, the negative pressure suction effect of the negative pressure tube 400 serves as a driving source to drive the skin to move toward the needle body 200, causing the skin to actively move and the needle body 200 to penetrate it, which can avoid the skin from wrinkling and deforming, making it difficult for the shorter needle body 200 to penetrate.

[0034] At the same time, based on the negative pressure suction effect of the negative pressure chamber 121, the skin automatically approaches the sharp tip of the needle body 200 under the pulling action, making the insertion process of the sharp tip of the needle body smoother and slower, reducing direct mechanical stimulation and reducing the patient's pain or discomfort.

[0035] In some embodiments of this application, see Figure 2 、 Figure 3 and Figure 5 The housing 100 is provided with a mounting portion 122 within the negative pressure chamber 121, protruding from the bottom wall of the negative pressure chamber 121. Along the axial direction of the housing 100, the thickness of the mounting portion 122 is less than the depth of the negative pressure chamber 121. In other words, the outer edge of the negative pressure chamber 121 is higher than the thickness of the mounting portion 122. The mounting portion 122 is provided with mounting holes 1221 extending therethrough. Exemplarily, a plurality of mounting holes 1221 are arranged in an array on the mounting portion 122, extending therethrough along the axial direction. The needles 200 are positioned within the mounting holes 1221. Because the mounting portion 122 protrudes from the bottom wall of the negative pressure chamber 121, after the needles 200 penetrate the patient's skin, the mounting portion 122 provides support for the patient's skin, thereby ensuring that the multiple needles 200 penetrate the skin to substantially the same depth, thus preventing the needles 200 in the middle from penetrating deeper and those at the edges from penetrating shallower.

[0036] In a further technical solution, the mounting portion 122 is provided in the middle of the negative pressure chamber 121, so that the negative pressure chamber 121 forms a guide channel surrounding the mounting portion 122. By providing the guide channel surrounding the mounting portion 122, the patient's skin can be subjected to the same or similar negative pressure in the local area corresponding to each needle body 200, thereby avoiding inconsistent penetration depth and effect of the needle body 200 due to uneven negative pressure; at the same time, based on the guide channel surrounding the mounting portion 122, in the process of the patient's skin probing into the negative pressure chamber 121 and gradually piercing the needle body 200, the portion of the guide channel below the mounting portion 122 can provide a certain amount of accommodation space for the skin in the surrounding area of ​​the to-be-treated area, thereby enabling the skin in the to-be-treated area to better support against the mounting portion 122, thereby further ensuring the consistency of the penetration depth of the needle body 200, and thus ensuring the consistency of the treatment effect.

[0037] In some embodiments of this application, please continue to refer to Figure 5 The housing 100 includes a housing body 110 and a needle seat 120. The needle seat 120 is located at the distal end of the housing body 110. The aforementioned negative pressure chamber 121 is opened at the distal end of the needle seat 120, and the mounting portion 122 is provided on the needle seat 120. Based on this technical solution, the housing 100 is designed as a front-to-back split structure, which facilitates the assembly of the entire laser treatment handpiece.

[0038] In some embodiments of the present application, the needle seat 120 can be provided at the distal end of the housing body 110 by means of gluing, clamping, embedding, etc. For example, please continue to refer to Figure 5 The shell body 110 can be formed by snapping together two half shells. The distal end of the shell body 110 formed by snapping together is formed with an embedding groove, and the needle seat 120 is provided with a radially outward protruding flange 123. When assembling the shell 100, the flange 123 is embedded in the aforementioned embedding groove, so that the needle seat 120 is embedded in the distal end of the shell body 110.

[0039] In some embodiments of the present application, the laser therapy handpiece may further include a drive unit 500, which is disposed within the housing space of the housing 100 and is connected to the needle body 200 to drive the needle body 200 to move along its axial direction. For example, the drive unit 500 may be an electric push rod. By driving the needle body 200 to move along its axial direction, the length of the needle body 200 extending from the housing 100 can be adjusted. This allows the length of the laser needle to be adjusted based on the patient's specific condition and needs, increasing treatment flexibility and ensuring therapeutic effectiveness. Furthermore, by adjusting the length of the needle body 200 extending from the housing 100, excessive concentration or diffusion of the laser beam can be avoided, thereby reducing potential damage to surrounding tissue. It should be understood that the drive unit 500 can also drive the needle body 200 to be hidden within the mounting hole 1221, thereby reducing the risk of accidental punctures or scratches when laser treatment is not being performed.

[0040] In some embodiments of this application, please continue to refer to Figure 5 The laser therapy handpiece also includes an adapter 600, which is disposed within the housing 100. The drive unit 500 is connected to the needle body 200 via the adapter 600. Specifically, the proximal end of the adapter 600 is connected to the drive unit 500, while the distal end of the adapter 600 slidably engages with the needle holder 120. The needle body 200 is disposed at the distal end of the adapter 600 and inserted into the mounting hole 1221. The adapter 600 is provided with a clearance opening 610 for the optical fiber 300. The optical fiber 300 can extend distally through the clearance opening 610 and be positioned within the needle body 200. This arrangement allows the optical fiber 300 to be smoothly guided into the needle body 200, preventing excessive bending and damage to the optical fiber 300.

[0041] In the embodiment of the present application, along the axial direction of the housing 100, the distal end of the adapter 600 is guided and matched with the housing 100. For example, see Figure 4 The proximal end of the needle seat 120 has a guide slot 124, and the distal end of the adapter 600 slides into the guide slot 124, and the cross-sectional size of the distal end of the adapter 600 matches the cross-sectional shape of the guide slot 124. In this way, when the driving unit 500 drives the adapter 600 to move, the stability of the movement of the needle body 200 can be improved, and the shaking of the needle body 200 can be effectively prevented during laser treatment.

[0042] In a further technical solution, a negative pressure connector 125 is further provided at the proximal end of the needle hub 120, and the negative pressure tube 400 is connected to the negative pressure connector 125 to pump the negative pressure chamber 121 to a negative pressure state. For example, the distal end of the negative pressure tube 400 can be sleeved on the negative pressure connector 125.

[0043] In a further technical solution, the distance between the distal end of the needle body 200 and the distal end of the shell 100 is 1mm~2mm, that is, the sharp tip of the needle body 200 is recessed 1mm~2mm in the opening of the negative pressure chamber 121. On the one hand, the negative pressure chamber 121 can be attached to the patient's skin through the opening, avoiding scratches or direct penetration of the skin by the needle body 200 during the attachment process, thereby ensuring the normal application of the negative pressure function. On the other hand, the recessed distance of 1mm~2mm is conducive to the stable penetration of the needle body 200 into the patient's skin, avoiding the recessed distance being too large, which makes it difficult for the needle body 200 to penetrate the skin after the skin is deformed into the negative pressure chamber 121.

[0044] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0045] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser treatment handpiece, characterized in that: include: A housing (100), a needle body (200), an optical fiber (300) and a negative pressure tube (400); wherein: The needle body (200) is arranged at the distal end of the housing (100), and the distal end of the optical fiber (300) extends into the needle body (200); The distal end of the shell (100) is provided with a negative pressure chamber (121), the distal end of the needle body (200) is located in the negative pressure chamber (121), the negative pressure tube (400) is connected to the negative pressure chamber (121), and the negative pressure tube (400) is configured to draw the negative pressure chamber (121) to a negative pressure state.

2. The laser therapy handpiece according to claim 1, characterized in that: The shell (100) is provided with a mounting portion (122) protruding from the bottom wall of the negative pressure chamber (121) in the negative pressure chamber (121); along the axial direction of the shell (100), the thickness of the mounting portion (122) is less than the depth of the negative pressure chamber (121); the mounting portion (122) is provided with a mounting hole (1221) passing through the mounting portion (122); the needle body (200) is inserted into the mounting hole (1221).

3. The laser therapy handpiece according to claim 2, characterized in that: The mounting portion (122) is arranged in the middle of the negative pressure chamber (121), so that the negative pressure chamber (121) forms a flow guide channel surrounding the mounting portion (122).

4. The laser therapy handpiece according to claim 2, characterized in that: The shell (100) comprises a shell body (110) and a needle seat (120), wherein the needle seat (120) is arranged at the distal end of the shell body (110), and the negative pressure chamber (121) and the mounting portion (122) are arranged on the needle seat (120).

5. The laser therapy handpiece according to claim 4, characterized in that: The needle seat (120) is embedded in the distal end of the shell body (110); or, the needle seat (120) is glued to the distal end of the shell body (110); or, the needle seat (120) is snap-fitted to the distal end of the shell body (110).

6. The laser therapy handpiece according to claim 5, characterized in that: The needle seat (120) is provided with a radially outwardly protruding flange (123), and the needle seat (120) is embedded in the distal end of the shell body (110) through the flange (123).

7. The laser therapy handpiece according to claim 2, characterized in that: It also includes a driving unit (500), which is disposed in the housing (100) and connected to the needle body (200) to drive the needle body (200) to move along its axial direction.

8. The laser therapy handpiece according to claim 7, characterized in that: The adapter (600) is further comprised, wherein the proximal end of the adapter (600) is connected to the driving unit (500), the needle body (200) is arranged at the distal end of the adapter (600) and is passed through the mounting hole (1221), and a relief opening (610) for avoiding the optical fiber (300) is provided on the adapter (600), and the optical fiber (300) extends into the needle body (200) through the relief opening (610).

9. The laser therapy handpiece according to claim 8, characterized in that: Along the axial direction of the housing (100), the distal end portion of the adapter (600) is guided and matched with the housing (100).

10. The laser therapy handpiece according to claim 1, characterized in that: The distance between the distal end of the needle body (200) and the distal end of the housing (100) is 1 mm to 2 mm.

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