A disposable self-destructive sterile cannula acupuncture needle

Abstract

The present invention relates to the technical field of self-destructive acupuncture needles, and discloses a disposable self-destructive sterile cannula acupuncture needle, comprising a cannula body, and an acupuncture needle body movably installed inside the cannula body, a threaded rod rotatably installed inside the cannula body, the threaded rod is used for the acupuncture needle body to rotate and apply needles, a pressing cannula is slidably installed inside the cannula body, the pressing cannula is used to drive the acupuncture needle body to move downward, the pressing cannula is threadedly matched with the threaded rod, a pressing block is installed on the pressing cannula, the upper end of the acupuncture needle body is rotatably connected with the pressing block, the acupuncture needle body is slidably matched inside the threaded rod, and a pressing spring is installed between the pressing block and the threaded rod. The effect of automatic rotation of the acupuncture needle body during downward movement is achieved. In this solution, the rotation and descent of the acupuncture needle body can be completed by pressing the pressing cannula, and different movements can be achieved by a single press, which reduces the complexity of acupuncture and makes acupuncture treatment more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of self-destructive acupuncture needles, in particular to a disposable self-destructive sterile cannula acupuncture needle. Background Art

[0002] Acupuncture needles are long, thin metal needles used in traditional Chinese medicine acupuncture therapy. They are usually made of stainless steel with sharp tips and smooth bodies. They come in different lengths and diameters to suit different acupuncture needs and patient constitutions. Acupuncture needles are used to stimulate specific acupuncture points on the human body to regulate the flow of qi and blood, treat a variety of diseases and relieve pain.

[0003] Disposable self-destructive sterile cannula acupuncture needles are medical devices designed for single use, aiming to improve the safety and hygiene standards of acupuncture treatment. The technology integrates a self-destruct mechanism on acupuncture needles, which are usually made of polymer materials and stainless steel and are tightly packaged to maintain sterility. They are suitable for a variety of application scenarios such as hospitals, clinics and homes.

[0004] At present, during acupuncture treatment, acupuncturists usually use different needle insertion techniques according to the patient's specific situation and treatment needs. Rotational needle insertion is a common technique. By rotating the needle body during needle insertion, the pain of the patient can be relieved. However, the rotational needle insertion method is more challenging for the acupuncturist's technique, and deviations may occur during operation, affecting the efficacy. Therefore, we proposed a disposable self-destructive sterile cannula acupuncture needle. Summary of the invention

[0005] The present invention provides a disposable self-destructive sterile cannula acupuncture needle, which has the beneficial effect of facilitating acupuncture treatment, and solves the problem mentioned in the above background technology that during acupuncture treatment, acupuncturists usually adopt different needle insertion techniques according to the specific conditions and treatment needs of the patients. Rotating the needle is a common technique, and the pain of the patient can be relieved by rotating the needle body during needle insertion. However, the rotating needle method is more challenging for the acupuncturist's technique, and deviations may occur during operation, affecting the efficacy.

[0006] The present invention provides the following technical solution: a disposable self-destructive sterile cannula acupuncture needle, comprising a cannula body, and an acupuncture needle body movably installed inside the cannula body, a threaded rod rotatably installed inside the cannula body, the threaded rod is used for the acupuncture needle body to rotate and apply acupuncture, a pressing cannula is slidably installed inside the cannula body, the pressing cannula is used to drive the acupuncture needle body to move downward, the pressing cannula is threadedly engaged with the threaded rod, a pressing block is installed on the pressing cannula, the upper end of the acupuncture needle body is rotatably connected to the pressing block, the acupuncture needle body is slidably engaged inside the threaded rod, and a pressing spring is installed between the pressing block and the threaded rod.

[0007] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, the acupuncture needle body includes an initial state, a needle removal state and an end state. When the acupuncture needle body is in the initial state, the acupuncture needle body is located inside the cannula body. When the acupuncture needle body is in the needle removal state, the needle tip of the acupuncture needle body moves out of the cannula body. The end state of the acupuncture needle body is consistent with the initial state.

[0008] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, wherein: sliding grooves are symmetrically opened inside the threaded rod, and protrusions are symmetrically installed on the side of the acupuncture needle body, the protrusions are engaged in the sliding grooves, and the protrusions are slidably matched with the sliding grooves, a sliding groove is opened on the side of the cannula body, a convex rib is installed on the side of the pressing cannula, and the convex rib is slidably engaged with the sliding groove, and a connecting block is installed on the bottom side of the threaded rod.

[0009] As an optional solution of a disposable self-destructive sterile cannula acupuncture needle described in the present invention, wherein: an elastic sheet is installed on the inner wall of the cannula body, a clamping block is installed on the side of the elastic sheet, a plurality of clamping slots are opened on the side of the pressing cannula, and a plurality of clamping slots are opened on the side of the pressing cannula in a linear array, and the clamping block and the clamping slot are used to lock the downward movement distance of the acupuncture needle body;

[0010] When the pressing sleeve is pressed, the pressing sleeve descends, so that the engaging block engages with the engaging groove.

[0011] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, the inner wall of the cannula body is provided with a groove, the surface of the pressing cannula is provided with a perforation, and the side of the threaded rod is provided with a docking hole. In the initial state and the final state of the acupuncture needle body, the groove, the perforation and the docking hole are horizontally aligned.

[0012] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, wherein: a resistance block is slidably installed inside the groove, a first spring is installed between the resistance block and the groove, the end of the resistance block is set as an arc surface, a sliding block is installed inside the perforation, and both ends of the sliding block are set as arc surfaces, and when the acupuncture needle body is in the initial state and the end state, the resistance block resists the sliding block, so one end of the sliding block is inserted into the docking hole.

[0013] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, wherein: a movable groove is opened on the inner wall of the perforation, and a reset spring is installed between the movable groove and the slider, and the reset spring is used to reset the slider.

[0014] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, a first guide block is installed on the inner wall of the cannula body, and a second guide block is installed on the side of the pressing cannula; when the acupuncture needle body is in an initial state and an end state, the first guide block and the second guide block are in contact with each other; when the acupuncture needle body is in a needle-out state, the first guide block and the second guide block are away from each other.

[0015] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, a pressing plate is integrally installed on the cannula body, and the pressing plate is used to facilitate holding the cannula body; a through-slot is provided on the threaded rod for the acupuncture needle body to pass through.

[0016] As an optional solution for a disposable self-destructive sterile cannula acupuncture needle described in the present invention, a push block is installed inside the pressing cannula, a retraction groove is provided inside the threaded rod, the retraction groove is communicated with the through-slot hole, a blade is installed inside the retraction groove, a connecting groove is provided on the inner wall of the retraction groove, the upper end of the blade is slidably matched with the connecting groove, and a second spring is installed between the blade and the connecting groove.

[0017] The present invention has the following beneficial effects:

[0018] 1. The disposable self-destructive sterile cannula acupuncture needle, through the cooperation of the threaded rod, the protrusion, the sliding groove and the pressing cannula, drives the acupuncture needle body to move downward and perform acupuncture while pressing the pressing cannula. Moreover, by utilizing the threaded connection between the threaded rod and the pressing cannula, the pressing cannula is lowered and the threaded rod is driven to rotate at the same time. Due to the cooperation of the protrusion and the sliding groove, the acupuncture needle body is driven to rotate while the threaded rod rotates, thereby achieving the effect of automatic rotation of the acupuncture needle body during the downward movement. In this solution, the rotation and descent of the acupuncture needle body can be completed by pressing the pressing cannula, and different movements can be achieved through a single press, thereby reducing the complexity of acupuncture and making acupuncture treatment more convenient.

[0019] 2. The disposable self-destructive sterile cannula acupuncture needle cooperates with the elastic sheet, the slot and the engaging block. During the process of pressing the cannula down, several slots will correspond to the engaging block. When the acupuncture needle body descends to a suitable position, the pressing cannula stops running. At this time, the compressed elastic sheet unfolds, so that the engaging block engages with the slot, thereby locking the position of the pressing cannula and locking the length of the needle body. Since multiple slots are provided, when adjusting the needle length of the acupuncture needle body, different lengths of the needle body can be adapted. Moreover, through the positioning of the slot, the insertion depth of the acupuncture needle can be accurately controlled to avoid being too deep or too shallow, thereby ensuring the treatment effect.

[0020] 3. The disposable self-destructive sterile cannula acupuncture needle, through the cooperation of the slider, the resistance block, the perforation and the docking hole, after the pressing sleeve is reset, the perforation and the docking hole are aligned, and at the same time the first spring uses its own elastic force to push the resistance block, and makes the resistance block resist the slider, so that one end of the slider reaches the inside of the docking hole, thereby locking the pressing sleeve, the threaded rod and the sleeve body, after which the pressing sleeve is rotated to generate a torque between the threaded rod and the sleeve body, but the pressing sleeve continues to rotate due to the restriction of the slider, so the pressing sleeve generates a torque, which damages the threaded rod while rotating the pressing sleeve, and the pressing sleeve itself is damaged; this scheme, by rotating the pressing sleeve to self-destruct when generating torque, can effectively prevent the acupuncture needle from being reused after use, thereby improving the safety and hygiene standards of treatment.

[0021] 4. The disposable self-destructive sterile cannula acupuncture needle cooperates with the push block, the blade and the connecting groove. When the cannula is pressed and rotated, the push block follows the rotation and resists one end of the blade during the rotation, so the blade moves toward the inside of the connecting groove. Since the connecting groove is connected to the through-slot hole, the plastic needle is cut off during the movement. This solution realizes the automatic damage of the acupuncture needle body by pressing the rotation of the cannula, further reducing the reuse of the acupuncture needle after use, thereby avoiding cross infection and other hygiene problems and ensuring the safety of patients. Moreover, the acupuncture needle body is designed to be divided into two parts. When the metal needle and the plastic needle are separated, the metal needle part can be manually pulled out of the threaded rod, which is convenient for separating metal and plastic and convenient for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the half-cut structure of the sleeve body of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the acupuncture needle body of the present invention in the needle-out state.

[0025] Figure 4 For the present invention Figure 2 A in the figure is an enlarged structural diagram.

[0026] Figure 5 For the present invention Figure 2 The enlarged structural diagram at B in FIG.

[0027] Figure 6 For the present invention Figure 2 The enlarged structural diagram at C in the figure.

[0028] Figure 7 For the present invention Figure 2The enlarged structural diagram at D in the figure.

[0029] Figure 8 For the present invention Figure 3 The enlarged structural diagram at E in FIG.

[0030] Fig. 9 It is a schematic diagram of the matching structure of the push block and the blade of the present invention.

[0031] In the figure: 110, sleeve body; 111, acupuncture needle body; 112, threaded rod; 113, pressing sleeve; 114, pressing block; 115, pressing spring; 120, sliding groove; 121, protrusion; 130, elastic sheet; 131, engaging block; 132, slot; 140, groove; 141, perforation; 142, docking hole; 150, resistance block; 151, first spring; 152, slider; 160, movable groove; 161, return spring; 170, first guide block; 171, second guide block; 180, pressing plate; 181, through-slot; 190, sliding groove; 191, convex rib; 210, connecting block; 220, pushing block; 221, retraction groove; 222, blade; 223, connecting groove; 224, second spring; 230, plastic needle; 231, metal needle. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: This embodiment aims to solve the problem that during acupuncture treatment, acupuncturists usually use different needle insertion techniques according to the specific conditions and treatment needs of the patients. Rotating the needle is a common technique. Rotating the needle can relieve the pain of the patient. However, the rotating needle method is more challenging for the acupuncturist's technique, and deviations may occur during operation, affecting the efficacy. Figure 1 - Fig. 9A disposable self-destructive sterile cannula acupuncture needle comprises a cannula body 110, and an acupuncture needle body 111 movably mounted inside the cannula body 110, a threaded rod 112 is rotatably mounted inside the cannula body 110, the threaded rod 112 is used for the acupuncture needle body 111 to rotate and apply acupuncture, a pressing cannula 113 is slidably mounted inside the cannula body 110, the pressing cannula 113 is used for driving the acupuncture needle body 111 to move downward, the pressing cannula 113 is threadedly matched with the threaded rod 112, a pressing block 114 is mounted on the pressing cannula 113, the upper end of the acupuncture needle body 111 is rotatably connected with the pressing block 114, the acupuncture needle body 111 is slidably matched inside the threaded rod 112, and a pressing spring 115 is mounted between the pressing block 114 and the threaded rod 112.

[0034] The acupuncture needle body 111 includes an initial state, a needle removal state and an end state. In the initial state, the acupuncture needle body 111 is located inside the sleeve body 110. In the needle removal state, the needle tip of the acupuncture needle body 111 moves out of the sleeve body 110. The end state of the acupuncture needle body 111 is consistent with the initial state.

[0035] The threaded rod 112 has a sliding groove 120 symmetrically formed therein, and the side of the acupuncture needle body 111 has a symmetrically mounted protrusion 121 , which is engaged in the sliding groove 120 and slidably cooperates with the sliding groove 120 .

[0036] See Figure 1 , Figure 2 and Figure 3 In the specific implementation, during the acupuncture process, the operator holds the sleeve body 110 and presses the pressing sleeve 113 at the same time, so that the pressing sleeve 113 moves downward inside the sleeve body 110, and drives the acupuncture needle body 111 to move downward during the movement. During the downward movement, the acupuncture needle body 111 passes through the threaded rod 112 and reaches the outside of the sleeve body 110 for acupuncture;

[0037] See Figure 4 Moreover, when the sleeve 113 is pressed, the threaded rod 112 connected in threaded connection is driven to rotate. Since the protrusion 121 installed on the acupuncture needle body 111 is engaged with the sliding groove 120, the acupuncture needle body 111 rotates simultaneously with the threaded rod 112, thereby realizing the rotation of the acupuncture needle body 111 during the downward movement. By automatically rotating the acupuncture needle body 111, the operator can perform the needle insertion operation more easily and reduce the fatigue of manual operation.

[0038] A pressing plate 180 is integrally mounted on the sleeve body 110 . The pressing plate 180 is used to facilitate holding the sleeve body 110 . A through-slot 181 for the acupuncture needle body 111 to pass through is provided on the threaded rod 112 .

[0039] In the present embodiment: through the cooperation of the threaded rod 112, the protrusion 121, the sliding groove 120 and the pressing sleeve 113, while pressing the pressing sleeve 113, the acupuncture needle body 111 is driven to move downward and acupuncture is performed. Moreover, by utilizing the threaded connection between the threaded rod 112 and the pressing sleeve 113, the pressing sleeve 113 is lowered and the threaded rod 112 is driven to rotate at the same time. Due to the cooperation of the protrusion 121 and the sliding groove 120, the acupuncture needle body 111 is driven to rotate while the threaded rod 112 rotates, thereby achieving the effect of automatic rotation of the acupuncture needle body 111 during the downward movement. In the present solution, the rotation and descent of the acupuncture needle body 111 can be completed by pressing the pressing sleeve 113, and different movements can be achieved through a single press, thereby reducing the complexity of acupuncture and making acupuncture treatment more convenient.

[0040] Embodiment 2: This embodiment is intended to promote the solution of the problem that the length of needles required for different groups of people is different due to the different severity of each person's illness, and the length of the conventional cannula acupuncture needle is fixed, which makes acupuncture treatment more limited. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 - Fig. 9 An elastic sheet 130 is installed on the inner wall of the sleeve body 110, and a clamping block 131 is installed on the elastic sheet 130. A plurality of clamping grooves 132 are opened on the side of the pressing sleeve 113. The plurality of clamping grooves 132 are opened in a linear array on the side of the pressing sleeve 113. The clamping block 131 and the clamping groove 132 are used to lock the downward movement distance of the acupuncture needle body 111;

[0041] See Figure 2 , Figure 3 , Figure 5 and Figure 8 In specific implementation, when pressing the pressing sleeve 113, the pressing sleeve 113 drives the acupuncture needle body 111 to descend. In the process of the pressing sleeve 113 descending, the side wall of the pressing sleeve 113 will squeeze the elastic sheet 130, so that the end of the elastic sheet 130 is close to the side wall of the sleeve body 110. When the acupuncture needle body 111 descends to a suitable position, the pressing of the pressing sleeve 113 is stopped. Due to the setting of the card slot 132, the elastic sheet 130 is no longer restricted, so the elastic sheet 130 is expanded, so that the locking block 131 is engaged with the card slot 132, thereby locking the position of the pressing sleeve 113. Due to the setting of multiple card slots 132, the length of the acupuncture needle body 111 can be adjusted to adapt to different people and improve the adaptability of the acupuncture needle body 111.

[0042] It should be noted that the force of the engagement between the engaging block 131 and the engaging groove 132 is greater than the force of the pressing spring 115 , so that the position of the pressing sleeve 113 can be fixed.

[0043] In the present embodiment: through the cooperation of the elastic sheet 130, the slot 132 and the engaging block 131, during the process of the pressing sleeve 113 descending, several slots 132 will correspond to the engaging block 131, and when the acupuncture needle body 111 descends to a suitable position, the pressing sleeve 113 stops running, at which time the compressed elastic sheet 130 unfolds, so that the engaging block 131 engages with the slot 132, thereby locking the position of the pressing sleeve 113 and locking the length of the needle out of the acupuncture needle body 111. Since a plurality of slots 132 are provided, when adjusting the needle length of the acupuncture needle body 111, different lengths of the needle out of the acupuncture needle body 111 can be adapted. Moreover, through the positioning of the slot 132, the insertion depth of the acupuncture needle can be accurately controlled to avoid being too deep or too shallow, thereby ensuring the treatment effect.

[0044] Embodiment 3: This embodiment is intended to promote the solution of the problem of infection caused by re-use of the acupuncture needle body 111 after the acupuncture needle body 111 is used. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1 - Fig. 9 A groove 140 is formed on the inner wall of the sleeve body 110, a through hole 141 is formed on the surface of the pressing sleeve 113, and a docking hole 142 is formed on the side of the threaded rod 112. In the initial state and the final state of the acupuncture needle body 111, the groove 140, the through hole 141 and the docking hole 142 are horizontally aligned.

[0045] A resistance block 150 is slidably installed inside the groove 140, and a first spring 151 is installed between the resistance block 150 and the groove 140. The end of the resistance block 150 is set as an arc surface, and the two sides of the resistance block 150 are set as planes. A slider 152 is installed inside the through hole 141, and both ends of the slider 152 are set as arc surfaces, and the two sides of the slider 152 are set as planes. In the initial state and the end state of the acupuncture needle body 111, the resistance block 150 resists the slider 152, so one end of the slider 152 is inserted into the docking hole 142.

[0046] A movable groove 160 is formed on the inner wall of the through hole 141 . A return spring 161 is installed between the movable groove 160 and the slider 152 . The return spring 161 is used for returning the slider 152 .

[0047] A slide groove 190 is provided on the side of the sleeve body 110, and a convex rib 191 is installed on the side of the pressing sleeve 113, and the convex rib 191 is slidably engaged with the slide groove 190; when the pressing block is pressed, the pressing sleeve will drive the threaded rod to rotate while sliding downward. The purpose of the convex rib and the slide groove is to prevent the possibility of the pressing sleeve being rotated while the threaded rod rotates. By limiting the convex rib and the slide groove, the rotation of the pressing sleeve during the descent process can be avoided as much as possible.

[0048] It should be noted that, in the process of rotating the pressing sleeve 113, a certain force is applied, and the rib 191 and the slide groove 190 will be disengaged, so it will not affect the rotation of the pressing sleeve 113. A connecting block 210 is installed on the bottom side of the threaded rod 112. Through the setting of the connecting block 210, when the threaded rod is damaged, the connecting block 210 can be manually controlled during the rotation of the pressing sleeve 113 to prevent the threaded rod 112 from rotating. At the same time, the sliding cooperation of the rib and the slide groove is carried out regardless of whether it is in the needle removal state or the end state. It is just that the rib and the slide groove lose cooperation in the process of damaging the acupuncture needle body.

[0049] See Figure 6 and Figure 7 In specific implementation, after the acupuncture needle body 111 is finished using, the pressing sleeve 113 is manually pulled upward, and the upward pressing sleeve 113 compresses the elastic sheet 130, so that the card slot 132 and the card block 131 are disengaged, so the pressing sleeve 113 drives the acupuncture needle body 111 to reset. After the pressing sleeve 113 is reset, the through hole 141 and the docking hole 142 are horizontally aligned, so the resistance block 150 uses the elastic force of the first spring 151 to push the resistance block 150, so that the resistance block 150 resists the slider 152, so that one end of the slider 152 is inserted into the docking hole 142, so that the pressing sleeve 113, The threaded rod 112 and the sleeve body 110 are locked. At the same time, the operator rotates and presses the sleeve 113, so that the pressing sleeve 113 generates a torque between the threaded rod 112 and the sleeve body 110. However, due to the limitation of the slider 152, the pressing sleeve 113 encounters resistance while rotating. At the same time, the hardness of the slider 152 and the resistance block 150 is greater than that of the threaded rod 112 and the pressing sleeve 113. Therefore, when the pressing sleeve 113 is rotated, the threaded rod 112 is damaged and the sleeve itself is damaged. Moreover, through the elastic force of the pressing spring 115, the acupuncture needle body 111 is always in the sleeve body 110 and does not fall out.

[0050] It should be noted that the sleeve body 110 , the threaded rod 112 and the pressing sleeve 113 are all set as plastic rods, and the slider 152 and the resistance block 150 are set as hard plastic blocks, so that the hardness of the slider 152 and the resistance block 150 is greater than that of the threaded rod 112 and the pressing sleeve 113 .

[0051] See Figure 7In a specific implementation, a first guide block 170 is installed on the inner wall of the sleeve body 110, and a second guide block 171 is installed on the side of the pressing sleeve 113. When the acupuncture needle body 111 is in the initial state and the end state, the first guide block 170 and the second guide block 171 are in contact with each other. When the acupuncture needle body 111 is in the needle-out state, the first guide block 170 and the second guide block 171 are away from each other. The first guide block 170 and the second guide block 171 are provided to prompt the operator to pull the pressing sleeve 113 to a certain position.

[0052] In this embodiment, through the cooperation of the slider 152, the abutment block 150, the through hole 141 and the docking hole 142, after the pressing sleeve 113 is reset, the through hole 141 and the docking hole 142 are aligned, and at the same time, the first spring 151 uses its own elastic force to push the abutment block 150, and makes the abutment block 150 abut against the slider 152, so that one end of the slider 152 reaches the inside of the docking hole 142, thereby locking the pressing sleeve 113, the threaded rod 112 and the sleeve body 110, and then rotating the pressing sleeve 113. 13, so that the pressing sleeve 113 generates a torque between the threaded rod 112 and the sleeve body 110, but the slider 152 limits the rotation of the pressing sleeve 113, but it continues to rotate at this time, so the pressing sleeve 113 generates a torque, so that the threaded rod 112 is damaged while the pressing sleeve 113 is rotated, and the sleeve itself is damaged; in this solution, the pressing sleeve 113 self-destructs when the torque is generated, which can effectively prevent the acupuncture needle from being reused after use, thereby improving the safety and hygiene standards of treatment.

[0053] Embodiment 4: This embodiment is intended to promote the solution of the problem that after the acupuncture needle body is used, although the threaded rod and the pressing sleeve can be damaged, the acupuncture needle body is not damaged. This embodiment is an improvement made on the basis of embodiment 3. For details, please refer to Figure 1 - Fig. 9 A pushing block 220 is installed inside the pressing sleeve 113, a retraction groove 221 is opened inside the threaded rod 112, the retraction groove 221 is communicated with the through-slotting groove 181, a blade 222 is installed inside the retraction groove 221, a connecting groove 223 is opened on the inner wall of the retraction groove 221, the upper end of the blade 222 is slidably matched with the connecting groove 223, and a second spring 224 is installed between the blade 222 and the connecting groove 223.

[0054] See Fig. 9In a specific implementation, while rotating and pressing the sleeve 113, the pressing sleeve 113 will drive the pushing block 220 to rotate. During the rotation, the pushing block 220 contacts one end of the blade 222, causing the blade 222 to move toward the inside of the connecting groove 223, and contacts the plastic needle 230 during the movement, and cuts it off during the contact process, causing the acupuncture needle body 111 to be damaged. By rotating and pressing the sleeve 113, the acupuncture needle body 111 is automatically cut off, so that the acupuncture needle body is completely cut off after use as much as possible and cannot be used again.

[0055] In this embodiment: through the cooperation of the pushing block 220, the blade 222 and the connecting groove 223, during the rotation of the pressing sleeve 113, the pushing block 220 follows the rotation and resists one end of the blade 222 during the rotation, so the blade 222 moves toward the inside of the connecting groove 223. Since the connecting groove 223 is connected to the through-slot 181, the plastic needle 230 is cut off during the movement. This solution realizes the automatic damage of the acupuncture needle body 111 by pressing the rotation of the sleeve 113, further reducing the reuse of the acupuncture needle after use, thereby avoiding cross infection and other hygiene problems and ensuring the safety of the patient. Moreover, the acupuncture needle body 111 is designed to be divided into two parts. When the metal needle 231 and the plastic needle 230 are separated, the metal needle 231 can be manually pulled out of the threaded rod 112, which is convenient for separating metal and plastic and convenient for recycling.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A disposable self-destructive sterile cannula acupuncture needle, comprising a cannula body (110), and an acupuncture needle body (111) movably mounted inside the cannula body (110), characterized in that: The acupuncture needle body (111) comprises a plastic needle (230) and a metal needle (231); a threaded rod (112) is rotatably mounted inside the sleeve body (110); the threaded rod (112) is used for the acupuncture needle body (111) to rotate and apply acupuncture; a pressing sleeve (113) is slidably mounted inside the sleeve body (110); the pressing sleeve (113) is used for driving the acupuncture needle body (111) to move downward; the pressing sleeve (113) is threadedly engaged with the threaded rod (112); a pressing block (114) is mounted on the pressing sleeve (113); the upper end of the acupuncture needle body (111) is rotatably connected to the pressing block (114); the acupuncture needle body (111) is slidably engaged inside the threaded rod (112); a pressing spring (115) is mounted between the pressing block (114) and the threaded rod (112); The threaded rod (112) is symmetrically provided with a sliding groove (120) inside, the side of the acupuncture needle body (111) is symmetrically provided with a protrusion (121), the protrusion (121) is engaged inside the sliding groove (120), and the protrusion (121) and the sliding groove (120) are slidably matched, and the side of the sleeve body (110) is provided with a sliding groove (190); The inner wall of the sleeve body (110) is provided with a groove (140), the surface of the pressing sleeve (113) is provided with a through hole (141), and the side of the threaded rod (112) is provided with a docking hole (142); when the acupuncture needle body (111) is in an initial state and an end state, the groove (140), the through hole (141) and the docking hole (142) are horizontally aligned; A resisting block (150) is slidably installed inside the groove (140), a first spring (151) is installed between the resisting block (150) and the groove (140), an end of the resisting block (150) is arranged as an arc surface, a sliding block (152) is installed inside the through hole (141), both ends of the sliding block (152) are arranged as arc surfaces, when the acupuncture needle body (111) is in an initial state and an end state, the resisting block (150) resists the sliding block (152), so that one end of the sliding block (152) is inserted into the docking hole (142), and the pressing sleeve (113) is rotated. Due to the restriction of the sliding block (152), the pressing sleeve (113) is subjected to resistance while rotating, the hardness of the sliding block (152) and the resisting block (150) is greater than that of the threaded rod (112) and the pressing sleeve (113), and the threaded rod (112) is damaged while the pressing sleeve (113) is rotated.

2. A disposable self-destructive sterile cannula acupuncture needle according to claim 1, characterized in that: The acupuncture needle body (111) comprises an initial state, a needle removal state and an end state. When the acupuncture needle body (111) is in the initial state, the acupuncture needle body (111) is located inside the sleeve body (110). When the acupuncture needle body (111) is in the needle removal state, the needle tip of the acupuncture needle body (111) moves out of the sleeve body (110).

3. A disposable self-destructive sterile cannula acupuncture needle according to claim 1, characterized in that: A convex rib (191) is installed on the side of the pressing sleeve (113), and the convex rib (191) is slidably engaged with the sliding groove (190). A connecting block (210) is installed on the bottom side of the threaded rod (112).

4. A disposable self-destructive sterile cannula acupuncture needle according to claim 1, characterized in that: An elastic sheet (130) is installed on the inner wall of the sleeve body (110), a locking block (131) is installed on the side of the elastic sheet (130), a plurality of locking grooves (132) are opened on the side of the pressing sleeve (113), and the plurality of locking grooves (132) are opened in a linear array on the side of the pressing sleeve (113), and the locking block (131) and the locking groove (132) are used to lock the downward movement distance of the acupuncture needle body (111); When the pressing sleeve (113) is pressed, the pressing sleeve (113) descends, so that the engaging block (131) engages with the engaging groove (132).

5. A disposable self-destructive sterile cannula acupuncture needle according to claim 1, characterized in that: A movable groove (160) is formed on the inner wall of the through hole (141), and a return spring (161) is installed between the movable groove (160) and the slider (152), and the return spring (161) is used to return the slider (152).

6. A disposable self-destructive sterile cannula acupuncture needle according to claim 1, characterized in that: A first guide block (170) is installed on the inner wall of the sleeve body (110), and a second guide block (171) is installed on the side of the pressing sleeve (113); when the acupuncture needle body (111) is in an initial state and an end state, the first guide block (170) and the second guide block (171) are in contact with each other; when the acupuncture needle body (111) is in a needle-out state, the first guide block (170) and the second guide block (171) are away from each other.

7. A disposable self-destructive sterile cannula acupuncture needle according to claim 1, characterized in that: A pressing plate (180) is integrally mounted on the sleeve body (110), and the pressing plate (180) is used to facilitate holding the sleeve body (110); a through slot (181) for the acupuncture needle body (111) to pass through is provided on the threaded rod (112).

8. A disposable self-destructive sterile cannula acupuncture needle according to claim 7, characterized in that: A pushing block (220) is installed inside the pressing sleeve (113), a retraction groove (221) is provided inside the threaded rod (112), the retraction groove (221) is communicated with the through-slot hole (181), a blade (222) is installed inside the retraction groove (221), a connecting groove (223) is provided on the inner wall of the retraction groove (221), the upper end of the blade (222) is slidably matched with the connecting groove (223), and a second spring (224) is installed between the blade (222) and the connecting groove (223).

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