Acupuncture bloodletting pen and fingertip bloodletting device comprising same

Abstract

The utility model relates to the technical field of acupuncture physiotherapy tools, and particularly discloses an acupuncture bloodletting pen and a fingertip bloodletting device comprising the acupuncture bloodletting pen. The needling bloodletting pen comprises a guide sleeve, a needle body, a percussion device and a button. The fingertip bloodletting device comprising the needling bloodletting pen comprises a shell, a hand mold, a bloodletting pen positioning mechanism, an interlocking trigger device, a cover plate, a supporting plate, a linkage reset mechanism and the needling bloodletting pen. According to the needling bloodletting pen, the needle body can be rapidly ejected out in the mode that the driving hammer of the percussion device and the third spring accumulate force to strike the needle body, the puncturing speed is high when the needle head of the needle body punctures the skin of the human body, and the pain feeling of a patient can be reduced; the finger mold of the fingertip bloodletting device can fix a palm, so that pricked acupoints are more accurate, meanwhile, the linkage reset mechanism, the bloodletting pen positioning mechanism and the interlocking trigger device are arranged, five pricking bloodletting pens can be triggered at the same time to conduct pricking bloodletting on fingertips, and operation is easy and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to acupuncture physiotherapy appliance technical field, specifically disclose a needle blood-letting pen and contain the needle blood-letting pen fingertip blood-letting device. BACKGROUND

[0002] Acupuncture blood-letting as a common traditional Chinese medicine treatment method, has a history of thousands of years, according to the theory of traditional Chinese medicine, through the stimulation of specific acupoints in the human body plays the role of regulating body function, promoting health, rehabilitation and treatment.

[0003] The human hand is distributed with many acupoints, and the traditional Chinese medicine uses handheld needle instrument to carry out blood-letting when acupuncture treatment and blood-letting, and the accuracy of acupoint puncture is determined by the practical experience of doctors, and due to the slow action of hand insertion, the angle of handheld needle instrument insertion and other reasons, the depth and position of acupoint stimulation will be deviated, and the patient's pain is strong when puncturing.

[0004] The existing patent with the publication number "CN221578876U a blood-letting needle for acupuncture treatment" discloses a blood-letting needle including a needle cylinder, a limiting ring, a pressing rod and a blood-letting triangular needle structure, wherein the limiting structure and the pressing rod can limit the depth of acupuncture, but cannot guarantee the blood-letting of specific acupoints, and the speed of blood-letting triangular needle insertion into the skin depends on the pressing speed, if the insertion process is slow, the patient's pain will be strong, and the comfort is low. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a needle blood-letting pen and fingertip blood-letting device containing the needle blood-letting pen to solve the problems in the prior art.

[0006] The utility model is implemented by the following technical schemes: a needle blood-letting pen, including guide bush, needle body, firing device and button, the guide bush is hollow structure, the needle body is slidably nested in the inside of guide bush front end, the needle head of needle body is movably inserted into the front end of guide bush, the first spring is sleeved on the needle body, and the two ends of first spring are respectively abutted on needle body and guide bush, the firing device is abutted on the back of needle body in the guide bush, the button is arranged behind the firing device, and the second spring is arranged between the button and the firing device.

[0007] Further, the firing device comprises a sliding sleeve, a firing sleeve, a hammer, a sliding pin and a third spring, the sliding sleeve is a hollow structure, the front end of the sliding sleeve abuts with the inner wall of the guide sleeve and the tail of the needle body, two communicating horizontal grooves and vertical grooves are symmetrically formed in the side wall of the sliding sleeve, the firing sleeve is nested and engaged in the sliding sleeve, two parallelogram guide grooves are symmetrically formed in the side wall of the firing sleeve, the hammer is sleeved in the firing sleeve, the sliding pin is fixedly arranged on the hammer, the two ends of the sliding pin pass through the parallelogram guide grooves, and the sliding pin is arranged in the horizontal groove and the vertical groove of the sliding sleeve, the third spring is arranged between the tail of the hammer and the inner wall of the firing sleeve.

[0008] Further, the button is integrally formed with the firing sleeve.

[0009] Further, the needle body comprises a needle head, a needle seat, a sliding block and a tail cap, the needle seat is slidably arranged in the guide sleeve, two sliding blocks are symmetrically arranged on the outer wall of the needle seat, a sliding groove is arranged on the inner wall of the guide sleeve, the sliding block is slidably arranged in the sliding groove, the needle head is fixedly connected to the front end of the needle seat, and the tail cap is threadedly connected to the rear end of the needle seat.

[0010] Further, a top cap is further arranged, the top cap is threadedly connected to the rear end of the guide sleeve, the button passes through the opening in the middle of the top cap and is exposed to the guide sleeve, and the top cap is arranged in the inner end of the guide sleeve and abuts with the part of the button arranged in the guide sleeve.

[0011] Further, the blood-letting pen comprises an outer shell, a hand mold, a blood-letting pen positioning mechanism, an interlocking trigger device, a cover plate, a supporting plate, a linkage reset mechanism and the blood-letting pen of any one of claims 1-5, the hand mold is fixedly arranged on the top opening of the outer shell, the cover plate is arranged above the hand mold, the supporting plate is arranged on one side of the outer shell and located at the palm positioning cavity of the hand mold, one blood-letting pen is slidably arranged in each of the five finger positioning cavities of the hand mold, five blood-letting pen positioning mechanisms are fixedly arranged on the hand mold, the blood-letting pen is slidably arranged on the supporting arm of the blood-letting pen positioning mechanism, a reset spring is sleeved on the tail of the blood-letting pen, the two ends of the reset spring abut with the outer wall of the blood-letting pen and the supporting arm, the interlocking trigger device is arranged in the outer shell, the firing seat of the interlocking trigger device is fixedly arranged on the tail of the blood-letting pen, and the connecting rod of the interlocking trigger device abuts with the button of the blood-letting pen.

[0012] Further, the blood-letting pen positioning mechanism comprises a supporting arm, a positioning gear, a pawl, a tension spring and a guide part, the supporting arm is fixedly arranged at the end of the finger positioning cavity of the hand mold, the positioning gear is rotatably arranged on the supporting arm, a tooth groove engaged with the positioning gear is formed on the bottom of the blood-letting pen corresponding to the position of the positioning gear, the pawl is hingedly arranged on the supporting arm and slidably connected with the positioning gear, the two ends of the tension spring are hingedly connected with the pawl and the supporting arm, and the guide part is fixedly arranged at the bottom of the supporting arm.

[0013] Furthermore, the reset mechanism includes a pull rope, a bracket, a pull rod, a reset spring, and a handle. The bracket is fixedly installed on the inner wall of the outer shell, and the pull rod is slidably mounted on the bracket. A pull rope is fixedly installed at one end of the pull rod, and a handle is fixedly installed at the other end of the pull rod through the outer shell. Five guide grooves are provided on the bracket, and the pull rope is slidably placed in the guide grooves.

[0014] Furthermore, the interlocking triggering device includes a firing seat, a connecting rod, a linkage plate, a guide shaft, a floating spring, a pressure rod, and a pressure handle. The firing seat is hinged to the middle of the connecting rod. The upper end of the connecting rod abuts against the button of the needle pricking and bleeding pen. A linkage pin is fixedly installed at the lower end of the connecting rod. Several guide shafts are vertically fixed at the bottom inside the housing. A horizontally arranged linkage plate is slidably sleeved on the guide shaft. A floating spring is sleeved on the guide shaft. The two ends of the floating spring abut against the housing and the linkage plate, respectively. The lower end of the connecting rod passes through the linkage plate. The linkage pin is placed below the linkage plate and slides in contact with the bottom surface of the linkage plate. A pressure rod is fixedly installed on the top surface of the linkage plate. A pressure handle is installed on the pressure rod extending out of the top of the housing.

[0015] Furthermore, it also includes a fingertip pad, which is fixedly installed at the front end of the guide sleeve of the acupuncture and bloodletting pen, and has a through hole in the center of the fingertip pad.

[0016] Advantages of this utility model:

[0017] 1. The needle bloodletting pen uses a hammer and a third spring to strike the needle body, which can quickly eject the needle body. When the needle tip pierces the human skin, the puncture speed is relatively fast, which can reduce the patient's pain.

[0018] 2. The hand mold of the fingertip bloodletting device can fix the palm, making the acupuncture points more accurate. It is also equipped with a linkage reset mechanism and a bloodletting pen positioning mechanism, which allows the bloodletting pen to adjust its position according to different finger lengths. The interlocking triggering device can simultaneously trigger five bloodletting pens to perform acupuncture bloodletting on the fingertips. The operation is simple and efficient. Attached image description:

[0019] Figure 1 This is a cross-sectional view of the overall structure of the acupuncture and bloodletting pen.

[0020] Figure 2 This is a partial sectional view of the needle body.

[0021] Figure 3 This is a partial cross-sectional view of the firing mechanism.

[0022] Figure 4 This is a cross-sectional view of the overall structure of the fingertip bloodletting device.

[0023] Figure 5 This is a partial structural diagram of the positioning mechanism of the bloodletting pen.

[0024] Figure 6 Fig. 2 is a schematic view of a partial structure of the linkage reset mechanism.

[0025] Figure 7 Fig. 3 is a schematic view of a partial structure of the interlocking trigger device.

[0026] Figure 8 Fig. 4 is a schematic view of a partial structure of the fingertip pad position.

[0027] In the figure: guide sleeve 1, needle body 2, firing device 3, button 4, first spring 5, second spring 6, top cap 7, shell 8, hand mold 9, blood letting pen positioning mechanism 10, interlocking trigger device 11, cover plate 12, support plate 13, linkage reset mechanism 14, fingertip pad 15, sliding groove 101, needle 201, needle seat 202, sliding block 203, tail cap 204, sliding sleeve 301, firing sleeve 302, firing hammer 303, sliding pin 304, third spring 305, horizontal slot 306, vertical slot 307, guide slot 308, hand positioning cavity 901, palm positioning cavity 902, support arm 1001, positioning gear 1002, pawl 1003, tension spring 1004, guide portion 1005, firing seat 1101, connecting rod 1102, linkage plate 1103, guide shaft 1104, floating spring 1105, pressing rod 1106, pressing handle 1107, linkage pin 1108, pull rope 1401, bracket 1402, pull rod 1403, reset compression spring 1404, handle 1405, guide slot 1406. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] As Figure 1 , Figure 2The application discloses a needle blood-letting pen, which comprises a guide sleeve 1, a needle body 2, a firing device 3 and a button 4. The guide sleeve 1 is hollow, and the needle body 2 is slidably arranged in the guide sleeve 1. The needle body 2 comprises a needle head 201, a needle base 202, a sliding block 203 and a tail cap 204. The needle base 202 is slidably arranged in the guide sleeve 1, and two sliding blocks 203 are symmetrically arranged on the outer wall of the needle base 202. A sliding groove 101 is arranged on the inner wall of the guide sleeve 1, and the sliding block 203 is slidably arranged in the sliding groove 101, so that the needle body can only move along the length direction of the guide sleeve 1. The sliding block 203 and the sliding groove 101 limit the rotation of the needle base 202 around the axis. The needle head 201 is fixedly connected with the needle base 202 through interference fit. The needle head 201 is disposable, so it needs to be detachably replaced. The tail cap 204 is threadedly connected with the rear end of the needle base 202. The needle head 201 of the needle body 2 is movably arranged at the front end of the guide sleeve 1. The needle head 201 can be inserted into the skin to complete the blood-letting of a specific acupoint when the needle head 201 is extended out of the guide sleeve 1. A first spring 5 is arranged on the outer sleeve of the needle body 2. The two ends of the first spring 5 are respectively abutted against the needle body 2 and the guide sleeve 1. Specifically, the first spring 5 is abutted between the protrusion on the inner wall of the guide sleeve 1 and the tail cap 204 of the needle body 2. The firing device 3 is abutted against the rear end of the needle body 2 in the guide sleeve 1. The button 4 is arranged behind the firing device 3. The second spring 6 is arranged between the button 4 and the firing device 3. The button 4 can trigger the firing device 3 when being pressed. The hammer 303 in the firing device 3 hits the needle body 2 in front, so that the needle body 2 is quickly moved forward to extend out of the guide sleeve 1, and the action of rapid blood-letting is completed. The second spring 6 is used for resetting the button 4 to the original position after the button 4 is released.

[0031] Figure 3The firing device 3 comprises a sliding sleeve 301, a firing sleeve 302, a hammer 303, a sliding pin 304 and a third spring 305. The sliding sleeve 301 is a hollow structure, and the front end of the sliding sleeve 301 abuts against the inner wall of the guide sleeve 1 and the tail of the needle body 2. Specifically, the sliding sleeve 301 simultaneously abuts against the inner wall of the guide sleeve 1 and the tail of the needle body 2, and the sliding sleeve 301 is compressed in the guide sleeve 1 by the second spring 6. Two axially symmetrical transverse grooves 306 and vertical grooves 307 are formed in the side wall of the sliding sleeve 301. The transverse grooves 306 and the vertical grooves 307 penetrate the sliding sleeve 301 and are connected to form an L-shaped notch. The firing sleeve 302 is engaged and nested in the sliding sleeve 301. Specifically, as shown in the figure, two planes are symmetrically arranged on the side surface of the firing sleeve 302 and match the two planes in the sliding sleeve 301. After the firing sleeve 302 is embedded in the sliding sleeve 301, the firing sleeve 302 can only slide along the length direction of the sliding sleeve 301, and the two will rotate together when axially rotating. In addition to the engagement and nesting mode shown in the figure, the two can be engaged and nested in other modes, such as that a tooth key is arranged on the outer wall of the firing sleeve 302 and a tooth groove matched with the tooth key is formed in the sliding sleeve 301. Two parallelogram-shaped guide grooves 308 are axially symmetrically formed in the side wall of the firing sleeve 302. The hammer 303 is slidingly nested in the firing sleeve 302. The sliding pin 304 is fixedly arranged on the hammer 303 and penetrates the parallelogram-shaped guide grooves 308, the transverse grooves 306 and the vertical grooves 307 in the sliding sleeve 301. The third spring 305 is arranged between the tail of the hammer 303 and the inner wall of the firing sleeve 302. The button 4 is integrally formed with the firing sleeve 302. When the button 4 is not pressed, the second spring 6 pushes the button 4 backward, and the button 4 drives the firing sleeve 302 to the retracted position. At this time, the sliding pin 304 is located at the front end of the two parallelogram-shaped guide grooves 308 of the firing sleeve 302. The front end of the guide groove 308 is a slope, the sliding pin 304 slides along the slope and falls into the vertical groove 307 of the sliding sleeve 301. At this time, the hammer 303 is in the retracted position, the third spring 305 abutting against the rear of the hammer 303 is in the elongated state and does not apply pressure to the needle body 2 in front, and the needle body 2 in front is in the retracted state under the action of the first spring 5. When needle puncture is needed, the button 4 is pressed, the button 4 drives the firing sleeve 302 to move forward, and the third spring 305 is compressed. However, the sliding pin 304 is clamped in the vertical groove 307, and the hammer 303 does not move forward. When the firing sleeve 302 gradually moves forward, the elastic potential energy of the third spring 305 is gradually accumulated. When the rear end slope of the parallelogram-shaped guide groove 308 of the firing sleeve 302 contacts the sliding pin 304, the sliding pin 304 is pressed upward by the slope and slides into the transverse groove 306 until the direction of the elastic force of the third spring 305 is parallel to the transverse groove 306. The hammer 303 is quickly released and moves forward quickly, and at the same time, the needle body 2 in front is pushed out of the guide sleeve 1 to complete the needle puncture action.When the needle is inserted, the button 4 is released, the second spring 6 pushes the button 4 back, the firing sleeve 302 is reset, the sliding pin 304 is reset to the vertical slot 307, and the hammer 303 is also retracted. The needle body 2 is retracted into the guide sleeve 1 under the action of the first spring 5.

[0032] It should be noted that the elastic coefficient of the third spring 305 is much larger than that of the first spring 5, which ensures that the hammer 303 can overcome the reset elastic force of the first spring 5 and quickly push the needle body 2. The speed of the needle body 2 during the insertion process is relatively fast, which can reduce the pain during the needle insertion.

[0033] In addition, it also includes a top cap 7, which is threadedly connected to the rear end of the guide sleeve 1. The button 4 passes through the opening in the middle of the top cap 7 and is exposed to the guide sleeve 1. The top cap 7 is placed at the end inside the guide sleeve 1 and abuts with the part of the button 4 placed inside the guide sleeve 1. The function of the top cap 7 is to block the opening at the rear of the guide sleeve 1 during the overall assembly of the blood-letting pen. Due to the above structure, it needs to be assembled from the tail opening of the guide sleeve 1. After the assembly is completed, the top cap 7 is threadedly connected to realize the actual application of the above structure.

[0034] As shown in FIG. 6, the blood-letting pen is assembled and the top cap 7 is threadedly connected to the rear end of the guide sleeve 1. Figure 4As shown: a fingertip blood-letting device comprising a needle blood-letting pen, including a shell 8, a hand mold 9, a blood-letting pen positioning mechanism 10, an interlocking trigger device 11, a cover plate 12, a supporting plate 13, a linkage reset mechanism 14, and the needle blood-letting pen of any one of claims 1-5, which can simultaneously perform needle blood-letting on the five fingers of a hand; the hand mold 9 is fixedly installed at the top opening of the shell 8, and the cover plate 12 is installed above the hand mold 9, with one side end of the cover plate 12 hinged to the shell 8; when in use, the cover plate 12 needs to be lifted to put the hand into the hand mold 9, which is used to fix the hand and includes hand positioning cavities 901 and palm positioning cavities 902, and the positioning of the hand mold 9 can ensure the accuracy of the acupuncture points; the supporting plate 13 is installed on the shell 8 at one side of the palm positioning cavities 902 of the hand mold 9, and is used to support the wrist of the human body; one needle blood-letting pen is slidably arranged in each of the five hand positioning cavities 901 of the hand mold 9, and five sets of blood-letting pen positioning mechanisms 10 are fixedly installed on the hand mold 9; the position of the needle blood-letting pen in the hand positioning cavity 901 can be adjusted through the blood-letting pen positioning mechanism 10, so as to adapt to fingers of different sizes and lengths; the tail of the needle blood-letting pen is slidably sleeved on the supporting arm 1001 of the blood-letting pen positioning mechanism 10, and a reset spring 1002 is sleeved on the tail of the needle blood-letting pen; the two ends of the reset spring 1002 abut against the outer wall of the needle blood-letting pen and the supporting arm 1001; when adjusting the position of the needle blood-letting pen, the blood-letting pen positioning mechanism 10 needs to be released, so that the needle blood-letting pen can slide along the hand positioning cavity 901; the finger is inserted into the hand positioning cavity 901 to press the needle blood-letting pen, the reset spring 1002 is compressed to make the needle blood-letting pen press against the hand of the patient, and the position of the needle blood-letting pen is locked by controlling the blood-letting pen positioning mechanism 10, so as to complete the adjustment; the interlocking trigger device 11 is installed in the shell 8, the firing seat 1101 of the interlocking trigger device 11 is fixedly installed on the tail of the needle blood-letting pen, the connecting rod 1102 of the interlocking trigger device 11 abuts against the button 4 of the needle blood-letting pen, and the interlocking trigger device 11 can simultaneously press down the buttons 4 of the five needle blood-letting pens, thereby achieving the function of synchronous firing.

[0035] As Figure 5As shown in the figure: blood-letting pen positioning mechanism 10 includes a support arm 1001, a positioning gear 1002, a pawl 1003, a tension spring 1004 and a guide 1005, the support arm 1001 is fixedly installed at the end of the designated positioning cavity 901 of the hand mold 9, a positioning gear 1002 is rotatably installed on the support arm 1001, a tooth groove corresponding to the positioning gear 1002 is formed at the bottom of the needle blood-letting pen, the pawl 1003 is hingedly connected to the support arm 1001, the pawl 1003 is slidably connected to the positioning gear 1002, the tension spring 1004 has two ends respectively hingedly connected to the pawl 1003 and the support arm 1001, and the guide 1005 is fixedly installed at the bottom of the support arm 1001. The pull rope 1401 of the linkage reset mechanism 14 passes through the guide 1005 and is fixed to the pawl 1003. When the needle blood-letting pen needs to be released, the pull rope 1401 pulls the pawl 1003 downward, the pawl 1003 is separated from the positioning gear 1002, the positioning gear 1002 can rotate freely, and the needle blood-letting pen can slide freely. When the adjustment is in place, release the pull rope 1401, the pawl 1003 is reset under the tension of the tension spring 1004 and is connected to the positioning gear 1002, at this time the positioning gear 1002 cannot continue to rotate, the tooth groove of the needle blood-letting pen is engaged with the positioning gear 1002, and the position of the needle blood-letting pen is locked.

[0036] As shown in the figure: Figure 6 The linkage reset mechanism 14 includes a pull rope 1401, a bracket 1402, a pull rod 1403, a reset compression spring 1404 and a handle 1405. The bracket 1402 is fixedly installed on the inner wall of the shell 8. The pull rod 1403 is slidably arranged on the bracket 1402, one end of the pull rod 1403 is fixedly installed with the pull rope 1401, the other end of the pull rod 1403 passes through the shell 8 and is fixedly installed with the handle 1405. Five guide grooves 1406 are formed in the bracket 1402, the pull rope 1401 is slidably arranged in the guide groove 1406, the handle 1405 is pulled, the pull rod 1403 drives the pull rope 1401, the pull rope 1401 is pulled, and the pawl 1003 of the five blood-letting pen positioning mechanisms 10 is pulled. When the handle 1405 is released, the reset compression spring 1404 and the pawl 1003 of each blood-letting pen positioning mechanism 10 reversely pull the pull rod 1403 to reset to the original position.

[0037] As shown in the figure: Figure 7As shown: interlocking trigger device 11 includes firing seat 1101, connecting rod 1102, linkage plate 1103, guide shaft 1104, floating spring 1105, pressure rod 1106 and pressure handle 1107, the firing seat 1101 and connecting rod 1102 middle hinge, connecting rod 1102 upper end and button 4 of needle blood-letting pen abut, the lower end of connecting rod 1102 is fixedly installed with linkage pin 1108, a plurality of guide shafts 1104 are vertically fixedly arranged on the bottom of shell 8, linkage plate 1103 is arranged horizontally and is sleeved on the guide shaft 1104, floating spring 1105 is sleeved on the guide shaft 1104, the two ends of floating spring 1105 respectively abut with shell 8 and linkage plate 1103, linkage plate 1103 can keep horizontal state and move up and down, connecting rod 1102 lower end passes through linkage plate 1103, linkage pin 1108 is placed below linkage plate 1103, linkage pin 1108 and the bottom surface of linkage plate 1103 slide contact, pressure rod 1106 is fixedly installed on the top surface of linkage plate 1103, and pressure rod 1106 passes through the top end of shell 8 and is installed with pressure handle 1107, when pressure handle 1107 is pressed, linkage plate 1103 is pressed down linkage pin 1108, linkage pin 1108 moves downward, and connecting rod 1102 is swung around the hinge point in the middle, and the opposite connecting rod 1102 upper end swings in the opposite direction and presses button 4, so that five needle blood-letting pens are simultaneously fired to the fingertips of the fingers, linkage plate 1103 is reversely lifted by floating spring 1105, that is, button 4 can be released, and reset is completed.

[0038] In addition, as Figure 8 As shown: it further includes fingertip pad 15, which is fixedly installed at the front end of needle blood-letting pen guide sleeve 1, a through hole is formed at the center position of fingertip pad 15, the through hole is used for the needle head 201 of needle body 2 to pass through, and fingertip pad 15 is made of soft materials such as latex, which is pasted at the front end of needle blood-letting pen guide sleeve 1 by using pressure-sensitive adhesive, so as to improve the comfort of the patient's finger when pressing, and at the same time, the skin near the needle puncture is kept tensioned, so as to reduce the pain of needle puncture.

Claims

1. A lancet lancing pen, characterized in that, It includes guide sleeve (1), needle body (2), firing device (3) and button (4), guide sleeve (1) is hollow structure, needle body (2) is slidably nested in the inside of guide sleeve (1) front end, needle head (201) of needle body (2) is movably penetrated through the front end of guide sleeve (1), first spring (5) is provided on the outer sleeve of needle body (2), the two ends of first spring (5) are respectively abutted on needle body (2) and guide sleeve (1), firing device (3) is abutted on the rear of needle body (2) in guide sleeve (1), button (4) is provided behind firing device (3), second spring (6) is abutted between button (4) and firing device (3).

2. A lancet pen according to claim 1, characterized in that The firing device (3) comprises: a sliding sleeve (301), a firing sleeve (302), a hammer (303), a sliding pin (304) and a third spring (305), the sliding sleeve (301) is a hollow structure, the front end of the sliding sleeve (301) is abutted on the inner wall of the guide sleeve (1) and the tail of the needle body (2), two axially symmetrically arranged transverse grooves (306) and vertical grooves (307) are formed in the side wall of the sliding sleeve (301), the firing sleeve (302) is nested in the sliding sleeve (301), two parallelogram guide grooves (308) are formed in the side wall of the firing sleeve (302), the hammer (303) is slidably sleeved in the firing sleeve (302), the sliding pin (304) is fixedly penetrated on the hammer (303), the two ends of the sliding pin (304) are respectively penetrated through the parallelogram guide grooves (308), and the sliding pin (304) is slidably arranged in the transverse grooves (306) and the vertical grooves (307) of the sliding sleeve (301), the third spring (305) is abutted between the tail of the hammer (303) and the inner wall of the firing sleeve (302).

3. A lancet pen according to claim 2, wherein, The button (4) is integrally formed with the firing sleeve (302).

4. A lancet pen according to claim 3, wherein, The needle body (2) comprises: a needle head (201), a needle seat (202), a sliding block (203) and a tail cap (204), the needle seat (202) is slidably arranged in the guide sleeve (1), two sliding blocks (203) are symmetrically arranged on the outer wall of the needle seat (202), a sliding groove (101) is formed in the inner wall of the guide sleeve (1), the sliding block (203) is slidably arranged in the sliding groove (101), the needle head (201) is inserted and fixed on the front end of the needle seat (202), and the tail cap (204) is threadedly connected to the rear end of the needle seat (202).

5. A lancet blood sampling pen according to claim 4, wherein, It also comprises a top cap (7), the top cap (7) is threadedly connected to the rear end of the guide sleeve (1), the button (4) is exposed from the guide sleeve (1) through the aperture in the middle of the top cap (7), and the top cap (7) is abutted on the part of the button (4) arranged in the guide sleeve (1).

6. A fingertip lancing device comprising a lancet lancing pen, characterized in that, The blood-letting pen comprises a shell (8), a hand mold (9), a blood-letting pen positioning mechanism (10), an interlocking trigger device (11), a cover plate (12), a supporting plate (13), a linkage reset mechanism (14), and the needle blood-letting pen of any one of claims 1-5. The hand mold (9) is fixedly installed at the top opening of the shell (8), the cover plate (12) is installed above the hand mold (9), the supporting plate (13) is installed on the shell (8) at one side of the palm positioning cavity (902) of the hand mold (9), one needle blood-letting pen is slidably arranged in each of the five hand positioning cavities (901) of the hand mold (9), five blood-letting pen positioning mechanisms (10) are fixedly installed on the hand mold (9), the tail of the needle blood-letting pen is slidably sleeved on the supporting arm (1001) of the blood-letting pen positioning mechanism (10), a reset spring (1002) is sleeved on the tail of the needle blood-letting pen, and the two ends of the reset spring (1002) abut against the outer wall of the needle blood-letting pen and the supporting arm (1001). The interlocking trigger device (11) is installed in the shell (8), the firing seat (1101) of the interlocking trigger device (11) is fixedly installed on the tail of the needle blood-letting pen, and the connecting rod (1102) of the interlocking trigger device (11) abuts against the button (4) of the needle blood-letting pen.

7. A fingertip lancing device comprising a lancing pen according to claim 6, characterized in that The blood-letting pen positioning mechanism (10) comprises a supporting arm (1001), a positioning gear (1002), a pawl (1003), a tension spring (1004), and a guide portion (1005). The supporting arm (1001) is fixedly installed at the end of the hand positioning cavity (901) of the hand mold (9), the positioning gear (1002) is rotatably installed on the supporting arm (1001), the tooth groove meshing with the positioning gear (1002) is formed at the position corresponding to the positioning gear (1002) at the bottom of the needle blood-letting pen, the pawl (1003) is hingedly connected to the positioning gear (1002) on the supporting arm (1001), the pawl (1003) is slidably connected to the positioning gear (1002), the two ends of the tension spring (1004) are hingedly connected to the pawl (1003) and the supporting arm (1001), respectively, the guide portion (1005) is fixedly installed at the bottom of the supporting arm (1001), and the pull rope (1401) of the linkage reset mechanism (14) passes through the guide portion (1005) and is fixed to the pawl (1003).

8. A fingertip lancing device comprising a lancing pen according to claim 7, characterized in that The reset mechanism (14) comprises a pull rope (1401), a bracket (1402), a pull rod (1403), a reset compression spring (1404), and a handle (1405). The bracket (1402) is fixedly installed on the inner wall of the shell (8), the pull rod (1403) is slidably arranged on the bracket (1402), one end of the pull rod (1403) is fixedly installed with the pull rope (1401), the other end of the pull rod (1403) passes out of the shell (8) and is fixedly installed with the handle (1405), five guide grooves (1406) are formed in the bracket (1402), and the pull rope (1401) is slidably arranged in the guide grooves (1406).

9. A fingertip lancing device comprising a lancing pen according to claim 8, characterized in that The interlocking trigger device (11) comprises a firing seat (1101), a connecting rod (1102), a linkage plate (1103), a guide shaft (1104), a floating spring (1105), a pressing rod (1106) and a pressing handle (1107), the firing seat (1101) is hinged with the middle part of the connecting rod (1102), the upper end of the connecting rod (1102) abuts against the button (4) of the needle blood-letting pen, the lower end of the connecting rod (1102) is fixedly installed with a linkage pin (1108), a plurality of guide shafts (1104) are vertically and fixedly arranged in the bottom of the shell (8), the linkage plate (1103) is horizontally arranged and is sleeved on the guide shaft (1104), the floating spring (1105) is sleeved on the guide shaft (1104), the two ends of the floating spring (1105) abut against the shell (8) and the linkage plate (1103) respectively, the lower end of the connecting rod (1102) penetrates through the linkage plate (1103), the linkage pin (1108) is arranged below the linkage plate (1103), the linkage pin (1108) is in sliding contact with the bottom surface of the linkage plate (1103), the pressing rod (1106) is fixedly installed on the top surface of the linkage plate (1103), and the pressing handle (1107) is installed on the top end of the shell (8) and penetrates out of the pressing rod (1106).

10. A fingertip lancing device comprising a lancing pen according to claim 9, characterized in that The fingertip pad (15) is fixedly installed at the front end of the needle blood-letting pen guide sleeve (1), and a through hole is formed at the center position of the fingertip pad (15).

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