Acupuncture bloodletting device

Abstract

The invention provides an acupuncture bloodletting device, and relates to the technical field of medical instruments. The positioning unit is detachably connected to the center of the top of the main body and comprises a laser emitting assembly capable of emitting a cross directrix laser beam and an infrared detection module arranged at the bottom of the laser emitting assembly and used for detecting hand acupuncture points of a patient; the needling unit is detachably connected to the bottom of the main body and comprises a liquid storage cavity and a needle head arranged in the center of the bottom of the liquid storage cavity; the negative pressure unit is arranged at the middle lower part in the main body and comprises a negative pressure pipeline, and the negative pressure pipeline can extend into the liquid storage cavity; the micro-current unit is detachably connected to the main body and comprises an electrode plate; and the control unit is arranged in the main body, and the positioning unit and the negative pressure unit are electrically connected with the control unit. According to the invention, exposure of the license can be avoided, and use is more convenient and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of medical appliances, in particular to an acupuncture bloodletting device. Background Art

[0002] The four-seam technique is one of the characteristic treatments of traditional Chinese medicine. The patient lies on his palm and extends his fingers. The central points of the first and second transverse lines on the second, third, fourth and fifth palm surfaces are locally disinfected, and then a three-edged needle is used to prick the area about 0.5mm-1mm below the skin to squeeze out blood (or yellow-white transparent mucus). Then the needle is wiped clean with a sterilized dry cotton ball and the needle hole is pressed to stop bleeding. This can achieve the effects of dredging meridians and activating collaterals, promoting blood circulation and removing blood stasis, and relieving limb pain in patients with erysipelas (lower limb lymphangitis), and it helps to control and improve the condition of the affected limbs of patients with erysipelas.

[0003] At present, the four-seam technique of bloodletting therapy uses a disposable three-edged needle or scalp needle tip to pierce the four-seam acupoint. After the needle tip is inserted into the acupoint, human assistance is required to squeeze out the blood, and the needle tip poses a risk of professional exposure safety, which is inconvenient for clinical use.

[0004] Therefore, there is an urgent need for a needle bloodletting device to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a needle-puncture bloodletting device to solve the technical problems that the current bloodletting therapy for picking four seams uses a disposable three-edged needle or a scalp needle tip to pierce the four seams acupoint, and after the needle tip is inserted into the acupoint, human assistance is required to squeeze out the blood, and the needle tip has a risk of exposure safety in practice, and the clinical application is not convenient. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the present invention are described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a bloodletting device comprising: main body; a positioning unit, detachably connected to the top center of the main body, comprising a laser emitting assembly capable of emitting a crosshair laser beam and an infrared detection module disposed at the bottom of the laser emitting assembly for detecting acupuncture points on the patient's hand; an acupuncture unit, detachably connected to the bottom of the main body, comprising a liquid storage chamber and a needle arranged at the center of the bottom of the liquid storage chamber; A negative pressure unit is disposed in the middle and lower part of the main body, and includes a negative pressure pipeline, and the negative pressure pipeline can extend into the liquid storage cavity; A microcurrent unit, detachably connected to the main body, comprising an electrode sheet; The control unit is arranged in the main body, and the positioning unit and the negative pressure unit are both electrically connected to the control unit.

[0007] Preferably, a pointed tip is provided at the end of the negative pressure pipeline, and a transparent protective film which can be pierced by the pointed tip is provided on the surface of the liquid storage cavity.

[0008] Preferably, the liquid storage chamber comprises: A first cavity, the top surface of which is provided with the protective film, and the side wall of which is provided with a threaded structure for connecting with the main body; A support structure, one end of which is connected to the first cavity, and the other end of which is inclined toward a side away from the first cavity and connected to the needle; The second cavity is made of silicone material and has a dovetail-shaped longitudinal section. The bottom end of the second cavity is flush with the bottom end of the needle.

[0009] Preferably, the acupuncture unit further comprises a protective cover, and the protective cover is snap-connected to the first cavity.

[0010] Preferably, the microcurrent unit includes a storage bin, the electrode sheet is arranged in the storage bin, a first magnetic module is arranged on the side wall of the storage bin, and a second magnetic module for connecting with the first magnetic module is arranged on the main body.

[0011] Preferably, an inclined plate and a baffle are provided at the bottom of the storage bin, one end of the inclined plate is connected to the first side wall of the storage bin, and the other end of the inclined plate is connected to the baffle via an elastic member; A sliding groove and a push block are provided on the second side wall of the storage bin, and a push rod, a spring groove and a spring are provided inside the storage bin, wherein the push block can slide along the sliding groove, and the push block is fixedly connected to the push rod, one end of the spring is fixedly connected to the spring groove, and the other end of the spring is connected to the push rod, and the push rod abuts against the baffle.

[0012] Preferably, the electrode sheet comprises a silicone material, and a conductive gel layer is disposed on the inner side of the electrode sheet.

[0013] Preferably, a micro pressure sensor is disposed at the bottom of the main body, and the micro pressure sensor is electrically connected to the control unit.

[0014] Preferably, the needle is in the shape of a triangular pyramid and has a length of 0.5 mm to 2 mm; Alternatively, the needle is a fine needle with an inner diameter of 0.13mm-0.3mm and an outer diameter of 0.3mm-0.5mm.

[0015] Preferably, the acupuncture bloodletting device further comprises a mechanical arm, and the mechanical arm is connected to the main body.

[0016] The acupuncture bloodletting device provided by the present invention comprises a main body, a positioning unit, acupuncture unit, a negative pressure unit and a microcurrent unit, wherein the positioning unit is detachably connected to the top center of the main body, comprising a laser emitting assembly capable of emitting a crosshair laser beam and an infrared detection module arranged at the bottom of the laser emitting assembly for detecting acupuncture points on the patient's hand, accurately marking the acupuncture point positions on the skin surface, and providing assistance for subsequent operations; the acupuncture unit is detachably connected to the bottom of the main body, comprising a liquid storage chamber and a needle arranged at the bottom center of the liquid storage chamber; the negative pressure unit is arranged in the middle and lower part of the main body, comprising a negative pressure pipeline, which can extend into the liquid storage chamber. During the bloodletting process, after the needle tip pierces the acupuncture point, the blood is automatically attracted to the liquid storage chamber by the action of the negative pressure unit, and the blood after acupuncture is stored by the liquid storage chamber to avoid professional exposure; combined with the microcurrent unit, the blood circulation and tissue repair are promoted by electrical stimulation, and the therapeutic effect is further improved. All parts in the acupuncture bloodletting device are detachable modules. After each use, the acupuncture unit can be discarded, which is convenient for quick and safe disposal after the bloodletting is completed, which is more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0018] Figure 1 It is a schematic structural diagram of a first embodiment of the acupuncture bloodletting device of the present invention; Figure 2 yes Figure 1 Schematic diagram of the explosion structure; Figure 3 It is a schematic structural diagram of the main body of the acupuncture bloodletting device of the present invention; Figure 4 It is a schematic structural diagram of a positioning unit in the acupuncture bloodletting device of the present invention; Figure 5 It is a schematic structural diagram of the acupuncture unit in the acupuncture bloodletting device of the present invention; Figure 6 yes Figure 5 A schematic diagram of a top view structure; Figure 7 This is a schematic diagram of the structure of the micro-current unit in the acupuncture bloodletting device of the present invention. Figure 8 yes Figure 7 A schematic diagram of the enlarged structure at A in the middle; Fig. 9 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle; Fig.10 This is a control principle diagram of the acupuncture bloodletting device of the present invention; Fig.11 It is a schematic diagram of the structure of the suspension member in the acupuncture bloodletting device of the present invention; Fig.12 It is a structural schematic diagram of the second embodiment of the acupuncture bloodletting device of the present invention.

[0019] In the figure: 1, main body; 100, second magnetic attraction module; 2. Positioning unit; 21. Laser emission component; 22. Infrared detection module; 3. Acupuncture unit; 31. Liquid storage chamber; 32. Needle; 33. Protective cover; 311. First cavity; 3111. Protective film; 3112. Thread structure; 312. Support structure; 313. Second cavity; 4. Negative pressure unit; 40. Negative pressure pipeline; 401. Tip; 5. micro-current unit; 50. storage bin; 51. electrode sheet; 500. first magnetic module; 501. inclined plate; 502. baffle; 503. elastic member; 504. spring slot; 505. spring; 506. ejector rod; 510. first side wall; 520. second side wall; 521. slide slot; 522. push block; 6. Control unit; 7. Micro pressure sensor; 8. Suspension; 9. Robotic arm. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0021] In the description of the present invention, it is to be understood that the terms “center”, “lateral”, “length”, “width”, “height”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “side”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] Embodiment 1 Figure 1 is a schematic diagram of the structure of this embodiment, Figure 2 yes Figure 1 Schematic diagram of the explosion structure, such as Figure 1 and Figure 2 As shown, this embodiment provides an acupuncture bloodletting device, including a main body 1, a positioning unit 2, an acupuncture unit 3, a negative pressure unit 4, a microcurrent unit 5 and a control unit 6.

[0024] Figure 3 It is a schematic diagram of the structure of the main body in this embodiment. Figure 3 As shown, the main body 1 in this embodiment is an elongated hollow cylindrical structure, made of medical stainless steel, with a length of 50mm-80mm, threaded structures at both ends, and a chamber for installing the control unit 6 and the negative pressure unit 4. The cross-sectional length of the chamber in this embodiment is set to be no greater than 80% of the cross-sectional radius of the main body 1, so that the positioning unit 2 can be positioned by the center of the main body 1 when in use.

[0025] In some embodiments, in order to facilitate the gripping of the main body 1 , anti-slip grooves may be provided on the outer surface of the main body 1 .

[0026] Figure 4 is a schematic diagram of the structure of the positioning unit in this embodiment, such as Figure 4 As shown, the positioning unit 2 in this embodiment is detachably connected to the top center of the main body 1 by means of threads, and includes a laser emitting assembly 21 capable of emitting a crosshair laser beam and an infrared detection module 22 arranged at the bottom of the laser emitting assembly for detecting acupuncture points on the patient's hand.

[0027] The laser emitting assembly 21 in this embodiment includes a laser emitter, which can emit a clear and bright crosshair laser beam, and its wavelength is usually selected in a frequency band that is sensitive to the human eye and harmless to the skin, such as around 650nm. The infrared detection module 22 includes an infrared depth sensor composed of an integrated infrared light emitting diode and a high-sensitivity receiver. It uses the reflection principle of infrared light to emit infrared light pulses modulated at a specific frequency to the hand, and quickly constructs the three-dimensional contour of the hand and the depth information of the acupoints by accurately measuring the phase change and time delay of the reflected light. The detection accuracy can reach within 0.5mm, and the scanning frequency is more than 30 times per second, ensuring that the dynamic changes of the hand can be tracked in real time.

[0028] By equipping the four-seam acupuncture bloodletting device with a dual positioning system of a laser emission component 21 and an infrared detection module 22, when in use, the laser first projects a crosshair to roughly mark the four-seam acupoint area, and then the infrared depth sensor accurately scans the hand contour and acupoint depth information, and calibrates the laser marking position in real time to ensure that the bloodletting needle is vertically and accurately inserted into the acupoint. Even if the user is not a professional medical staff, he can operate correctly under clear guidance, greatly improving the safety and effectiveness of the treatment. In particular, for the active characteristics of children, infrared motion tracking technology is used to continuously monitor the displacement of the hand during the bloodletting process. Once the acupoint deviates from the marked range, the laser point quickly and dynamically adjusts its position, and the treatment is resumed after the hand returns to a stable position, ensuring that the treatment is accurately focused on the acupoint throughout the process, avoiding the risk of misoperation caused by shaking.

[0029] Figure 5 is a schematic structural diagram of the acupuncture unit in this embodiment, Figure 6 yes Figure 5 The top view of the structure is as follows: Figure 5 and Figure 6 As shown, the acupuncture unit 3 in this embodiment is detachably connected to the bottom of the main body 1, and includes a liquid storage chamber 31 and a needle 32 arranged at the bottom center of the liquid storage chamber 31. The liquid storage chamber 31 is used for blood (or yellow-white transparent mucus) after acupuncture.

[0030] The acupuncture unit 3 in this embodiment is disposable. By setting the acupuncture unit 3 to be detachably connected to the bottom of the main body 1, it is convenient for quick and safe disposal after the bloodletting is completed. The connection between the acupuncture unit 3 and the main body 1 can be a snap-on or threaded connection. In order to improve the sealing of the overall structure and the convenience of operation, the acupuncture unit 3 in this embodiment is connected to the main body 1 by a threaded connection, that is, an external thread is set on the outer surface of the acupuncture unit 3, which is used to cooperate with the internal thread set on the main body 1.

[0031] Optionally, the needle 32 in this embodiment is in the shape of a triangular pyramid and has a length of 0.5mm-2mm; or, the needle 32 is a fine needle with an inner diameter of 0.13mm-0.3mm and an outer diameter of 0.3mm-0.5mm. Such an extremely fine design can minimize the pain of the patient and reduce the wound area.

[0032] Optionally, the liquid storage chamber 31 is made of transparent plastic material, so that medical staff can visually observe the amount of bloodletting. Preferably, the surface of the liquid storage chamber 31 is clearly marked with a scale with an accuracy of 0.1 ml for better use. Preferably, a one-way valve is provided at the connection between the needle and the liquid storage chamber 31 to prevent blood from flowing back.

[0033] Specifically, the liquid storage chamber in this embodiment includes a first cavity 311, a support structure 312 and a second cavity 313. A transparent protective film 3111 is provided on the top surface of the first cavity 311, and a threaded structure 3112 for connecting with the main body 1 is provided on the side wall. One end of the support structure 312 is connected to the first cavity 311, and the other end is inclined toward the side away from the first cavity 311 and connected to the needle 32. The second cavity 313 is made of silicone material, and the longitudinal section is dovetail-shaped. The bottom end of the second cavity 313 is flush with the bottom end of the needle 32.

[0034] With such a configuration, when not in use, the second cavity 313 covers the needle 32 to prevent accidental punctures. When bleeding, the needle 32 contacts the skin and penetrates the subcutaneous tissue, and the flexible second cavity 313 can retract. During bleeding, the blood is sucked into the liquid storage cavity 31 by the negative pressure unit 4, and the dovetail-shaped second cavity 313 can quickly guide the blood to flow into the dovetail cavity.

[0035] In order to improve the safety of the overall structure, the acupuncture unit 3 in this embodiment also includes a protective cover 33, which is snap-connected to the first cavity 311. On the one hand, the protective cover 33 plays a good protective role in the cleanliness and hygiene of the needle 32, and on the other hand, it prevents the needle 32 from causing harm to medical staff or patients. Through the snap-connection, the protective cover 33 can be easily and quickly installed on the acupuncture unit 3 or removed from the acupuncture unit 3.

[0036] The negative pressure unit 4 is arranged in the middle and lower part of the main body 1, including a negative pressure pipeline 40, which can extend into the liquid storage chamber 31; optionally, a tip 401 is provided at the end of the negative pressure pipeline 40 in this embodiment for puncturing the protective film 3111.

[0037] With such arrangement, when the liquid storage chamber 31 is installed on the main body 1, once it is installed in place, the tip of the negative pressure pipeline 40 can automatically pierce the protective film 3111, so that the negative pressure unit 4 is connected with the acupuncture unit 3. The operation is simple and convenient, and the sealing is good, which is easy to use.

[0038] Figure 7 Schematic diagram of the structure of the micro-current unit in this embodiment. Figure 7 As shown, the microcurrent unit 5 is detachably connected to the main body 1, and includes an electrode sheet 51. Optionally, the electrode sheet 51 in this embodiment includes a silicone material, a tiny chip embedded therein to control the current, and is connected in series through a flexible wire. It is soft and skin-friendly and can be used in contact with the skin. In some embodiments, the electrode sheet 51 can also be made of conductive rubber or other materials. When in use, the electrode sheet 51 is attached to the patient's acupuncture points. On the basis of acupuncture bloodletting, combined with the effect of low-intensity microcurrent, electrical stimulation is used to promote blood circulation and tissue repair, further improving the efficacy.

[0039] Specifically, the electrode sheet 51 in this embodiment can be set in a disc-shaped, petal-shaped, ring-shaped or other structures to ensure close fit with the acupuncture points and surrounding skin, reduce contact resistance, and ensure uniform and stable introduction of current. A conductive gel layer is set on the inner side of the electrode sheet 51, which not only enhances conductivity, but also reduces the risk of skin allergies to a certain extent. It is also easy to clean after use and can be reused many times, which is safer and more environmentally friendly.

[0040] like Figure 2 and Figure 7 As shown, the microcurrent unit 5 includes a storage bin 50, an electrode sheet 51 is arranged in the storage bin 50, a first magnetic module 500 is arranged on the side wall of the storage bin 50, and a second magnetic module 100 for connecting with the first magnetic module 500 is arranged on the main body 1. By setting the microcurrent unit 5 and the main body 1 to be detachably connected by magnetic attraction, in some usage scenarios, the microcurrent unit 5 is needed and adsorbed onto the main body 1. In other usage scenarios, when the microcurrent unit 5 is not needed, it can be quickly removed, which is more convenient and flexible, and avoids too many modules on the main body 1 to affect the operation.

[0041] An inclined plate 501 and a baffle 502 are provided at the bottom of the storage bin 50 in the present embodiment. One end of the inclined plate 501 is connected to the first side wall 510 of the storage bin 50, and the other end of the inclined plate 501 is connected to the baffle 502 via an elastic member 503. With such a configuration, when an external force is applied to the other side of the baffle 502, the other side of the baffle 502 moves downward, and the electrode sheet 51 can be detached from the end of the baffle 502 along the inclined direction of the inclined plate 501. When the external force is removed, the baffle 502 can quickly return to its original position under the action of the elastic member to prevent the electrode sheet 51 from detaching again.

[0042] In actual production and use, the inclination angle of the inclined plate 501 and the magnitude of the force applied to the baffle 502 can be set according to the thickness of the electrode sheet 51 to ensure that one electrode sheet 51 is removed each time.

[0043] Specifically, Figure 8 yes Figure 7The enlarged structural diagram at A in the figure is as follows: Figure 8 As shown, a slide groove 521 and a push block 522 are provided on the second side wall 520 of the storage bin 50, and a push rod 506, a spring groove 504 and a spring 505 are provided inside the storage bin 50, wherein the push block 522 can slide along the slide groove 521, and the push block 522 is fixedly connected to the push rod 506, one end of the spring 505 is fixedly connected in the spring groove 504, and the other end of the spring 505 is connected to the push rod 506, and the push rod 506 abuts against the baffle 502.

[0044] When in use, the electrode sheet 51 can be flexibly taken out and attached to the patient's acupuncture points. On the basis of acupuncture and bloodletting, combined with the effect of low-intensity microcurrent, electrical stimulation is used to promote blood circulation and tissue repair, thereby further improving the therapeutic effect.

[0045] Fig. 9 yes Figure 3 The enlarged structural diagram at B is as follows: Fig. 9 As shown, a micro pressure sensor 7 is provided at the bottom of the main body 1, and the micro pressure sensor 7 is electrically connected to the control unit 6. By providing a micro pressure sensor 7 near the acupuncture unit 3 of the main body 1, when the needle tip contacts the skin and reaches a certain pressure threshold (such as 0.5N), the micro pressure sensor 7 sends a signal to the device control unit 6, triggering the bloodletting program to start, and the control unit 6 controls the negative pressure unit 4 to start, thereby realizing the automatic connection of the operation.

[0046] Fig.10 It is the control principle diagram of this embodiment, such as Fig.10 As shown, the control unit 6 in this embodiment is arranged in the main body 1, and the positioning unit 2 and the negative pressure unit 4 are electrically connected to the control unit 6. The control unit 6 in this embodiment includes a PLC. On the one hand, it receives the data collected by the infrared detection module 22, and uses a complex algorithm to analyze the precise coordinates of the hand acupuncture points in real time; on the other hand, it drives the laser emission component 21 to dynamically adjust the laser marking position according to these coordinate information to ensure that the entire treatment process is carried out accurately and orderly. In addition, the control unit 6 can also automatically turn on the negative pressure unit 4 according to the signal of the micro pressure sensor 7, making the entire bloodletting process more accurate and intelligent.

[0047] Optionally, Fig.11 Schematic diagram of the structure of the suspension member in this embodiment. Fig.11 As shown, in order to make the acupuncture bloodletting device more portable, an "L"-shaped hanging piece 8 is provided on the surface of the main body 1, so that the main body 1 is in the shape of a pen as a whole, so as to facilitate the medical staff to carry and use.

[0048] Embodiment 2 Fig.12 Schematic diagram of the structure of this embodiment. Fig.12As shown, this embodiment, based on the first embodiment, further includes a robotic arm 9, and the robotic arm 9 is connected to the main body 1.

[0049] Among them, the positioning unit includes a laser emitting component that can emit a crosshair laser beam and an infrared detection module arranged at the bottom of the laser emitting component for detecting the acupuncture points on the patient's hand, accurately marking the acupuncture point position on the skin surface to provide assistance for subsequent operations; the acupuncture unit is detachably connected to the bottom of the main body, including a liquid storage chamber and a needle arranged at the center of the bottom of the liquid storage chamber; the negative pressure unit is arranged in the middle and lower part of the main body, including a negative pressure pipeline, which can extend into the liquid storage chamber. During the bloodletting process, after the needle tip pierces the acupuncture point, the blood is automatically attracted to the liquid storage chamber through the action of the negative pressure unit, and the blood after acupuncture is stored through the liquid storage chamber to avoid professional exposure; combined with the microcurrent unit, electrical stimulation is used to promote blood circulation and tissue repair, further improving the efficacy. All parts in the acupuncture bloodletting device are detachable modules. After each use, the acupuncture unit can be discarded, which is convenient for quick and safe disposal after the bloodletting is completed, which is more convenient and efficient.

[0050] In this embodiment, the intelligent four-seam bloodletting is realized through the cooperation of the mechanical arm 9 with the main body 1, the positioning unit 2, the acupuncture unit 3, the negative pressure unit 4, the microcurrent unit 5 and the control unit 6.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A needle bloodletting device, characterized in that: include: main body; a positioning unit, detachably connected to the top center of the main body, comprising a laser emitting assembly capable of emitting a crosshair laser beam and an infrared detection module disposed at the bottom of the laser emitting assembly for detecting acupuncture points on the patient's hand; an acupuncture unit, detachably connected to the bottom of the main body, comprising a liquid storage chamber and a needle arranged at the center of the bottom of the liquid storage chamber; A negative pressure unit is disposed in the middle and lower part of the main body, and includes a negative pressure pipeline, and the negative pressure pipeline can extend into the liquid storage cavity; A microcurrent unit, detachably connected to the main body, comprising an electrode sheet; The control unit is arranged in the main body, and the positioning unit and the negative pressure unit are both electrically connected to the control unit.

2. The acupuncture bloodletting device according to claim 1, characterized in that: A tip is arranged at the end of the negative pressure pipeline, and a transparent protective film which can be pierced by the tip is arranged on the surface of the liquid storage cavity.

3. The acupuncture bloodletting device according to claim 2, characterized in that: The liquid storage chamber comprises: A first cavity, the top surface of which is provided with the protective film, and the side wall of which is provided with a threaded structure for connecting with the main body; A support structure, one end of which is connected to the first cavity, and the other end of which is inclined toward a side away from the first cavity and connected to the needle; The second cavity is made of silicone material and has a dovetail-shaped longitudinal section. The bottom end of the second cavity is flush with the bottom end of the needle.

4. The acupuncture bloodletting device according to claim 3, characterized in that: The acupuncture unit further comprises a protective cover, and the protective cover is snap-connected with the first cavity.

5. A needle bloodletting device according to any one of claims 1 to 4, characterized in that: The microcurrent unit includes a storage bin, the electrode sheet is arranged in the storage bin, a first magnetic module is arranged on the side wall of the storage bin, and a second magnetic module for connecting with the first magnetic module is arranged on the main body.

6. The acupuncture bloodletting device according to claim 5, characterized in that: An inclined plate and a baffle are provided at the bottom of the storage bin, one end of the inclined plate is connected to the first side wall of the storage bin, and the other end of the inclined plate is connected to the baffle through an elastic member; A sliding groove and a push block are provided on the second side wall of the storage bin, and a push rod, a spring groove and a spring are provided inside the storage bin, wherein the push block can slide along the sliding groove, and the push block is fixedly connected to the push rod, one end of the spring is fixedly connected to the spring groove, and the other end of the spring is connected to the push rod, and the push rod abuts against the baffle.

7. The acupuncture bloodletting device according to claim 5, characterized in that: The electrode sheet comprises a silica gel material, and a conductive gel layer is arranged on the inner side of the electrode sheet.

8. The acupuncture bloodletting device according to any one of claims 1 to 4, characterized in that: A micro pressure sensor is arranged at the bottom of the main body, and the micro pressure sensor is electrically connected to the control unit.

9. The acupuncture bloodletting device according to any one of claims 1 to 4, characterized in that: The needle is in the shape of a triangular pyramid and has a length of 0.5 mm to 2 mm; Alternatively, the needle is a fine needle with an inner diameter of 0.13mm-0.3mm and an outer diameter of 0.3mm-0.5mm.

10. The acupuncture bloodletting device according to any one of claims 1 to 4, characterized in that: The acupuncture bloodletting device also includes a mechanical arm, which is connected to the main body.

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