Disposable self-destructing sterile sleeve acupuncture needle
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2026-08-13
Smart Images
Figure CN2025109549_13082026_PF_FP_ABST
Abstract
Description
A disposable, self-destructing sterile acupuncture cannula needle Technical Field
[0001] This invention relates to the field of self-destructing acupuncture needle technology, specifically a disposable self-destructing sterile cannula acupuncture needle. Background Technology
[0002] Acupuncture needles are slender metal needles used in Traditional Chinese Medicine acupuncture therapy. They are typically made of stainless steel, with sharp points and smooth surfaces. They come in different lengths and diameters to suit various acupuncture needs and patient constitutions. Acupuncture needles are used to stimulate specific acupoints on the body to regulate the flow of Qi and blood, treat various diseases, and relieve pain.
[0003] Single-use, self-destructing sterile acupuncture cannulas are medical devices designed for single use, aiming to improve the safety and hygiene standards of acupuncture treatment. This technology integrates a self-destruct mechanism into the acupuncture needle, typically made of polymer materials and stainless steel, and is tightly packaged to maintain sterility, making it suitable for various applications including hospitals, clinics, and homes.
[0004] Currently, during acupuncture treatment, acupuncturists typically employ different needle insertion techniques based on the patient's specific condition and treatment needs. Rotating the needle during insertion is a common technique, which can alleviate pain for patients. However, rotating the needle requires considerable skill from the acupuncturist, and deviations may occur during operation, affecting the therapeutic effect. Therefore, we propose a disposable, self-destructing sterile cannula acupuncture needle. Summary of the Invention
[0005] This invention provides a disposable, self-destructing sterile acupuncture cannula, which offers the advantage of convenient needle insertion. It addresses the issue mentioned in the background section where, during acupuncture treatment, acupuncturists typically employ different needle insertion techniques based on the patient's specific condition and treatment needs. Rotating the needle during insertion is a common technique, which can alleviate pain for patients. However, this method requires considerable skill from the acupuncturist, and deviations may occur during operation, affecting the therapeutic effect.
[0006] This invention provides the following technical solution: a disposable self-destructing sterile cannula acupuncture needle, comprising a cannula body and an acupuncture needle body movably installed inside the cannula body. A threaded rod is rotatably installed inside the cannula body for rotating the acupuncture needle body to apply the needle. A pressing sleeve is slidably installed inside the cannula body for driving the acupuncture needle body to move downward. The pressing sleeve is threadedly engaged with the threaded rod. A pressing block is installed on the pressing sleeve. 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. A pressing spring is installed between the pressing block and the threaded rod.
[0007] As an alternative solution for a disposable self-destructing sterile cannula acupuncture needle according to the present invention, the acupuncture needle body includes an initial state, a needle withdrawal state, and an end state. In the initial state, the acupuncture needle body is located inside the cannula body. In the needle withdrawal state, the needle tip of the acupuncture needle body moves out of the cannula body. In the end state, the acupuncture needle body is consistent with the initial state.
[0008] As an alternative solution for a disposable self-destructing sterile acupuncture cannula described in this invention, the following features are provided: symmetrical sliding grooves are provided inside the threaded rod; symmetrical protrusions are installed on the side of the acupuncture needle body; the protrusions engage with the sliding grooves and slide in cooperation with them; a sliding groove is provided on the side of the cannula body; a rib is installed on the side of the pressing cannula and slides in cooperation with the sliding groove; and a connecting block is installed on the bottom side of the threaded rod.
[0009] As an alternative solution for a disposable self-destructing sterile cannula acupuncture needle according to the present invention, wherein: an elastic sheet is installed on the inner wall of the cannula body, a locking block is installed on the side of the elastic sheet, and a plurality of locking slots are opened on the side of the pressing cannula, the plurality of locking slots are arranged in a linear array on the side of the pressing cannula, and the locking block and the locking slots are used to lock the distance of the acupuncture needle body downward movement;
[0010] When the pressing sleeve is pressed, the pressing sleeve descends, thus engaging the locking block with the locking groove.
[0011] As an alternative solution for a disposable self-destructing sterile cannula acupuncture needle according to the present invention, wherein: the inner wall of the cannula body is provided with a groove, the surface of the pressing cannula is provided with a perforation, the side of the threaded rod is provided with a docking hole, and the groove, perforation and docking hole are horizontally aligned in the initial state and the end state of the acupuncture needle body.
[0012] As an alternative solution for a disposable self-destructing sterile cannula acupuncture needle according to the present invention, wherein: an abutment block is slidably installed inside the groove, a first spring is installed between the abutment block and the groove, the end of the abutment block is set as an arc surface, a slider is installed inside the perforation, both ends of the slider are set as arc surfaces, and the acupuncture needle body is in the initial state and the end state, the abutment block abuts against the slider, so one end of the slider is inserted into the docking hole.
[0013] As an alternative solution for a disposable self-destructing sterile cannula acupuncture needle according to the present invention, wherein: a movable groove is provided on the inner wall of the perforation, and a return spring is installed between the movable groove and the slider, the return spring being used to reset the slider.
[0014] As an alternative solution for a disposable self-destructing sterile cannula acupuncture needle according to the present invention, wherein: a first guide block is installed on the inner wall of the cannula body, a second guide block is installed on the side of the pressing cannula, the first guide block and the second guide block are in contact with each other in the initial state and the end state of the acupuncture needle body, and the first guide block and the second guide block are far apart from each other in the needle withdrawal state of the acupuncture needle body.
[0015] As an alternative solution for a disposable self-destructing sterile cannula acupuncture needle according to the present invention, wherein: a pressing plate is integrally installed on the cannula body, the pressing plate being used to facilitate holding the cannula body; and a through slot is provided on the threaded rod for the acupuncture needle body to pass through.
[0016] As an alternative solution for a disposable self-destructing sterile acupuncture cannula described in this invention, wherein: a pushing block is installed inside the pressing cannula, a retraction groove is opened inside the threaded rod, the retraction groove communicates with the through slot, a blade is installed inside the retraction groove, a connecting groove is opened on the inner wall of the retraction groove, the upper end of the blade slides in conjunction 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. This disposable, self-destructing sterile acupuncture cannula utilizes a threaded rod, a protrusion, a sliding groove, and a pressing sleeve. Pressing the pressing sleeve simultaneously moves the acupuncture needle body downwards for needle insertion. Furthermore, the threaded connection between the threaded rod and the pressing sleeve allows the threaded rod to rotate as the pressing sleeve descends. Due to the engagement of the protrusion and the sliding groove, the rotation of the threaded rod simultaneously drives the rotation of the acupuncture needle body, achieving an automated rotational effect during the downward movement of the acupuncture needle body. This design allows for the rotation and descent of the acupuncture needle body simply by pressing the pressing sleeve, achieving different movements with a single press, reducing the complexity of acupuncture and making acupuncture treatment more convenient.
[0019] 2. This disposable self-destructing sterile acupuncture cannula utilizes an elastic plate, locking slots, and locking blocks. During the descent of the cannula, several slots align with the locking blocks. When the acupuncture needle reaches the appropriate position, the pressing action stops, the compressed elastic plate unfolds, and the locking blocks engage with the slots, locking the position of the pressing cannula and simultaneously locking the length of the acupuncture needle. Because of the multiple locking slots, the insertion and withdrawal lengths of the acupuncture needle can be adjusted to accommodate different insertion and withdrawal lengths. Furthermore, the positioning of the slots allows for precise control of the needle insertion depth, preventing it from being too deep or too shallow, thus ensuring therapeutic efficacy.
[0020] 3. This disposable self-destructing sterile acupuncture cannula utilizes a slider, abutment block, perforation, and docking hole. After the cannula is reset by pressing, the perforation and docking hole align. Simultaneously, the first spring pushes the abutment block with its own elasticity, causing the abutment block to contact the slider, bringing one end of the slider into the docking hole. This locks the cannula, threaded rod, and cannula body. Rotating the cannula then generates torque between the threaded rod and the cannula body. However, the slider restricts the rotation of the cannula. Continued rotation generates torque, damaging the threaded rod and causing the cannula to break. This design, by self-destructing when torque is generated during rotation, effectively prevents the acupuncture needle from being reused after use, improving treatment safety and hygiene standards.
[0021] 4. This disposable self-destructing sterile cannula acupuncture needle, through the cooperation of a push block, blade, and connecting groove, rotates as the cannula is pressed, causing the push block to rotate as well. During rotation, the push block abuts one end of the blade, causing the blade to move into the connecting groove. Since the connecting groove is connected to the through slot, it cuts the plastic needle during this movement. This solution achieves automatic damage to the acupuncture needle body by pressing the cannula to rotate, further reducing the need for reuse after use, thereby avoiding cross-infection and other hygiene problems, and ensuring patient safety. In addition, the acupuncture needle body is designed in two sections. When separating the metal needle and the plastic needle, the metal needle part can be manually pulled out of the threaded rod, facilitating the separation of metal and plastic and making recycling convenient. Attached Figure Description
[0022] Figure 1 is a three-dimensional structural diagram of the present invention.
[0023] Figure 2 is a schematic diagram of the half-section structure of the sleeve body of the present invention.
[0024] Figure 3 is a schematic diagram of the acupuncture needle body in the needle-out state of the present invention.
[0025] Figure 4 is an enlarged structural diagram of point A in Figure 2 of this invention.
[0026] Figure 5 is an enlarged structural diagram of point B in Figure 2 of this invention.
[0027] Figure 6 is an enlarged structural diagram of point C in Figure 2 of this invention.
[0028] Figure 7 is an enlarged structural diagram of point D in Figure 2 of this invention.
[0029] Figure 8 is an enlarged structural diagram of point E in Figure 3 of this invention.
[0030] Figure 9 is a schematic diagram of the structure of the push block and the blade of the present invention.
[0031] In the diagram: 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, locking block; 132, locking groove; 140, groove; 141, through hole; 142, mating hole; 150, abutting 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, protruding 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 Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] Example 1: This example aims to address the issue that during acupuncture treatment, acupuncturists often employ different needle insertion techniques based on the patient's specific condition and treatment needs. Rotating the needle during insertion is a common technique, which can alleviate the pain of patients. However, rotating the needle requires considerable skill from the acupuncturist, and deviations may occur during operation, affecting the therapeutic effect. Please refer to Figures 1-9. A disposable self-destructing sterile cannula acupuncture needle includes a cannula body 110 and an acupuncture needle body 111 movably installed inside the cannula body 110. A threaded rod 112 is rotatably installed inside the cannula body 110 for rotating the acupuncture needle body 111 to apply the needle. A pressing sleeve 113 is slidably installed inside the cannula body 110 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 installed 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 installed between the pressing block 114 and the threaded rod 112.
[0034] The acupuncture needle body 111 includes an initial state, a needle withdrawal state, and an end state. In the initial state, the acupuncture needle body 111 is located inside the cannula body 110. In the needle withdrawal state, the needle tip of the acupuncture needle body 111 moves out of the cannula body 110. In the end state, the acupuncture needle body 111 is the same as the initial state.
[0035] The threaded rod 112 has symmetrical sliding grooves 120 inside, and the acupuncture needle body 111 has symmetrical protrusions 121 on its side. The protrusions 121 are engaged inside the sliding grooves 120, and the protrusions 121 and the sliding grooves 120 slide in cooperation.
[0036] See Figures 1, 2 and 3. In practice, during the acupuncture procedure, the operator holds the cannula body 110 and presses the cannula 113. As a result, the cannula 113 moves downward inside the cannula body 110. During this movement, the acupuncture needle body 111 moves downward. During this downward movement, the acupuncture needle body 111 passes through the threaded rod 112 and reaches the outside of the cannula body 110 for acupuncture.
[0037] As shown in Figure 4, in addition, when the sleeve 113 is pressed, the threaded rod 112 connected by the thread will rotate. Due to the engagement between the protrusion 121 installed on the acupuncture needle body 111 and the sliding groove 120, the acupuncture needle body 111 rotates simultaneously with the threaded rod 112, 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 installed on the sleeve body 110. The pressing plate 180 is used to facilitate holding the sleeve body 110. A through slot 181 is opened on the threaded rod 112 for the acupuncture needle body 111 to pass through.
[0039] In this embodiment: through the cooperation of the threaded rod 112, the protrusion 121, the sliding groove 120, and the pressing sleeve 113, the acupuncture needle body 111 moves downward while the pressing sleeve 113 is pressed, and acupuncture is performed. Moreover, by utilizing the threaded connection between the threaded rod 112 and the pressing sleeve 113, the pressing sleeve 113 descends while driving the threaded rod 112 to rotate. Due to the cooperation between the protrusion 121 and the sliding groove 120, the acupuncture needle body 111 rotates while the threaded rod 112 rotates, thus achieving the effect of automated rotation during the downward movement of the acupuncture needle body 111. In this solution, the rotation and descent of the acupuncture needle body 111 can be completed by pressing the pressing sleeve 113. Different movements are achieved through a single press, reducing the complexity of acupuncture and making acupuncture treatment more convenient.
[0040] Example 2: This example aims to address the problem that the required needle length varies depending on the severity of each patient's condition, and the conventional cannula acupuncture needle has a fixed insertion length, which limits the effectiveness of acupuncture treatment. This example is an improvement on Example 1. Specifically, please refer to Figures 1-9. An elastic sheet 130 is installed on the inner wall of the cannula body 110, and a locking block 131 is installed on the elastic sheet 130. Several locking grooves 132 are provided on the side of the pressing cannula 113, and the locking grooves 132 are arranged in a linear array on the side of the pressing cannula 113. The locking block 131 and the locking grooves 132 are used to lock the downward movement distance of the acupuncture needle body 111.
[0041] As shown in Figures 2, 3, 5, and 8, in specific implementation, when the pressing sleeve 113 is pressed, the pressing sleeve 113 causes the acupuncture needle body 111 to descend. During the descent of the pressing sleeve 113, the side wall of the pressing sleeve 113 will squeeze the elastic sheet 130, causing the end of the elastic sheet 130 to move closer to the side wall of the sleeve body 110. When the acupuncture needle body 111 descends to the appropriate position, the pressing of the pressing sleeve 113 is stopped. Due to the setting of the locking groove 132, the elastic sheet 130 is no longer restricted, so the elastic sheet 130 unfolds, causing the locking block 131 to engage with the locking groove 132, thereby locking the position of the pressing sleeve 113. Since multiple locking grooves 132 are set, the length of the acupuncture needle body 111 can be adjusted to suit different people and improve the adaptability of the acupuncture needle body 111.
[0042] It should be noted that the force of the engaging block 131 and the engaging slot 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 this embodiment: through the cooperation of the elastic sheet 130, the slot 132 and the locking block 131, during the descent of the pressing sleeve 113, several slots 132 will correspond to the locking blocks 131. When the acupuncture needle body 111 descends to the appropriate position, the pressing sleeve 113 stops operating. At this time, the compressed elastic sheet 130 unfolds, so that the locking block 131 engages with the slot 132, thereby locking the position of the pressing sleeve 113 and locking the length of the acupuncture needle body 111. Since multiple slots 132 are provided, when adjusting the needle insertion length of the acupuncture needle body 111, different insertion and insertion lengths of the acupuncture needle body 111 can be adapted. Moreover, through the positioning of the slots 132, the insertion depth of the acupuncture needle can be precisely controlled to avoid being too deep or too shallow, thus ensuring the treatment effect.
[0044] Example 3. This example aims to address the problem of infection caused by the reuse of the acupuncture needle body 111 after use. This example is an improvement on Example 2. Specifically, please refer to Figures 1-9. The inner wall of the sleeve body 110 has a groove 140, the surface of the pressing sleeve 113 has a through hole 141, and the side of the threaded rod 112 has a docking hole 142. In the initial and final states, the groove 140, the through hole 141, and the docking hole 142 of the acupuncture needle body 111 are horizontally aligned.
[0045] A contact block 150 is slidably installed inside the groove 140. A first spring 151 is installed between the contact block 150 and the groove 140. The end of the contact block 150 is set as an arc surface, and the two sides of the contact block 150 are set as flat surfaces. A slider 152 is installed inside the through hole 141. Both ends of the slider 152 are set as arc surfaces, and the two sides of the slider 152 are set as flat surfaces. In the initial and final states of the acupuncture needle body 111, the contact block 150 abuts against the slider 152, so one end of the slider 152 is inserted into the docking hole 142.
[0046] A movable groove 160 is provided on the inner wall of the perforation 141. A return spring 161 is installed between the movable groove 160 and the slider 152. The return spring 161 is used to reset the slider 152.
[0047] The sleeve body 110 has a sliding groove 190 on its side, and the pressing sleeve 113 has a raised rib 191 installed on its side. The raised rib 191 is slidably engaged with the sliding groove 190. When pressing the pressing block, the pressing sleeve will rotate as the threaded rod moves downward. The purpose of the raised rib and the sliding groove is to prevent the pressing sleeve from rotating as the threaded rod rotates. By limiting the movement of the pressing sleeve through the raised rib and the sliding groove, rotation during the descent of the pressing sleeve is avoided as much as possible.
[0048] It should be noted that during the rotation of the pressing sleeve 113, when a certain force is applied, the rib 191 and the groove 190 will disengage, thus not affecting the rotation of the pressing sleeve 113. A connecting block 210 is installed on the bottom side of the threaded rod 112. By setting 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 engagement between the rib and the groove is maintained in both the needle insertion state and the termination state. Only when the acupuncture needle body is damaged will the rib and the groove lose their engagement.
[0049] As shown in Figures 6 and 7, in specific implementation, after the acupuncture needle body 111 is no longer in use, the pressing sleeve 113 is manually pulled upwards. Simultaneously, the upward-moving pressing sleeve 113 compresses the elastic plate 130, causing the slot 132 to disengage from the engaging block 131. Therefore, the pressing sleeve 113 drives the acupuncture needle body 111 to reset. After the pressing sleeve 113 resets, the through hole 141 and the docking hole 142 are horizontally aligned. Therefore, the abutment block 150 is pushed by the elastic force of the first spring 151, causing the abutment block 150 to abut against the slider 152. Thus, one end of the slider 152 is inserted into the docking hole 142, thereby compressing the pressing sleeve 111. 13. The threaded rod 112 and the sleeve body 110 are locked together. At the same time, the operator rotates and presses the sleeve 113, which generates torque between the threaded rod 112 and the sleeve body 110. However, due to the restriction of the slider 152, the pressing sleeve 113 is resisted while rotating. At the same time, the hardness of the slider 152 and the abutment block 150 is greater than that of the threaded rod 112 and the pressing sleeve 113. Therefore, while rotating the pressing sleeve 113, the threaded rod 112 is damaged, and the pressing sleeve itself is also damaged. Moreover, the elastic force of the pressing spring 115 keeps the acupuncture needle body 111 inside the sleeve body 110 and prevents it from falling out.
[0050] It should be noted that the sleeve body 110, the threaded rod 112 and the pressing sleeve 113 are all made of plastic rods, while the slider 152 and the abutment block 150 are made of hard plastic blocks, so that the hardness of the slider 152 and the abutment block 150 is greater than that of the threaded rod 112 and the pressing sleeve 113.
[0051] As shown in Figure 7, in specific implementation, a first guide block 170 is installed on the inner wall of the cannula body 110, and a second guide block 171 is installed on the side of the pressing cannula 113. In the initial and final states of the acupuncture needle body 111, the first guide block 170 and the second guide block 171 are in contact. In the needle withdrawal state of the acupuncture needle body 111, the first guide block 170 and the second guide block 171 are far apart from each other. The purpose of setting the first guide block 170 and the second guide block 171 is to prompt the operator to pull the pressing cannula 113 to a certain position.
[0052] In this embodiment: through the cooperation of slider 152, abutment block 150, through hole 141 and mating hole 142, after the pressing sleeve 113 is reset, through hole 141 and mating hole 142 are aligned. At the same time, the first spring 151 uses its own elastic force to push the abutment block 150, causing the abutment block 150 to abut against slider 152, so that one end of slider 152 reaches the inside of mating hole 142. Therefore, pressing sleeve 113, threaded rod 112 and sleeve body 110 are locked. After this, rotating pressing sleeve 152... 13. This causes the pressing sleeve 113 to generate torque between the threaded rod 112 and the sleeve body 110. However, due to the restriction of the sliding block 152 on the rotation of the pressing sleeve 113, the rotation continues, thus generating torque in the pressing sleeve 113. This causes damage to the threaded rod 112 and the pressing sleeve itself while rotating the pressing sleeve 113. This solution, by causing the pressing sleeve 113 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.
[0053] Example 4: This example aims to address the problem that after the acupuncture needle body is used up, although the threaded rod and pressing sleeve may be damaged, the acupuncture needle body itself remains undamaged. This example is an improvement on Example 3. Specifically, please refer to Figures 1-9. A pushing block 220 is installed inside the pressing sleeve 113. A retraction groove 221 is opened inside the threaded rod 112, which communicates with the through slot 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 slides in conjunction with the connecting groove 223, and a second spring 224 is installed between the blade 222 and the connecting groove 223.
[0054] As shown in Figure 9, in specific implementation, while rotating the pressing sleeve 113, the pressing sleeve 113 will drive the pushing block 220 to rotate. During the rotation, the pushing block 220 will abut against one end of the blade 222, causing the blade 222 to move into the connecting groove 223. During the movement, it will abut against the plastic needle 230 and cut it, causing the acupuncture needle body 111 to break. By rotating the pressing sleeve 113, the acupuncture needle body 111 is automatically cut off, so that the acupuncture needle body is completely cut off after use and cannot be used again.
[0055] In this embodiment: by cooperating with the push block 220, the blade 222 and the connecting groove 223, the push block 220 rotates along with the pressing sleeve 113 during rotation, and during the rotation, it abuts one end of the blade 222, so the blade 222 moves into the connecting groove 223. Since the connecting groove 223 is connected to the through slot 181, the plastic needle 230 is cut during the movement. This solution achieves automatic damage to the acupuncture needle body 111 by rotating the pressing sleeve 113, further reducing the reuse of acupuncture needles after use, thereby avoiding cross-infection and other hygiene problems, and ensuring patient safety. Moreover, the acupuncture needle body 111 is designed in two sections. When the metal needle 231 and the plastic needle 230 are separated, the metal needle 231 part can be manually pulled out of the threaded rod 112, which facilitates the separation of metal and plastic and makes recycling convenient.
[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A single-use, self-destructing, sterile, cannula acupuncture needle comprising a cannula body (110) and an acupuncture needle body (111) movably mounted inside said cannula body (110), characterized in that: The acupuncture needle body (111) includes a plastic needle (230) and a metal needle (231). A threaded rod (112) is rotatably installed inside the sleeve body (110). The threaded rod (112) is used for rotating the acupuncture needle body (111) to apply the needle. A pressing sleeve (113) is slidably installed inside the sleeve body (110). The pressing sleeve (113) is used to drive 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 installed 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 installed between the pressing block (114) and the threaded rod (112). The threaded rod (112) has symmetrical sliding grooves (120) inside. The acupuncture needle body (111) has symmetrical protrusions (121) on its side. The protrusions (121) are engaged in the sliding grooves (120) and slide in cooperation with the sliding grooves (120). The sleeve body (110) has a sliding groove (190) on its side.
2. The self-destructing, single-use, sterile, disposable acupuncture needle according to claim 1, wherein: The acupuncture needle body (111) includes an initial state, a needle withdrawal state, and an end state. In the initial state, the acupuncture needle body (111) is located inside the cannula body (110). In the needle withdrawal state, the needle tip of the acupuncture needle body (111) moves out of the cannula body (110).
3. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 1 wherein: The pressing sleeve (113) is equipped with a rib (191) on its side, the rib (191) is slidably engaged with the slide groove (190), and a connecting block (210) is installed on the bottom side of the threaded rod (112).
4. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 1 wherein: An elastic sheet (130) is installed on the inner wall of the sleeve body (110), and 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). The plurality of locking grooves (132) are arranged in a linear array on the side of the pressing sleeve (113). The locking block (131) and the locking grooves (132) are used to lock the distance of the acupuncture needle body (111) moving downward. When the pressing sleeve (113) is pressed, the pressing sleeve (113) descends, and thus the engaging block (131) engages with the slot (132).
5. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 1 wherein: 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), the side of the threaded rod (112) is provided with a docking hole (142), and the groove (140), through hole (141) and docking hole (142) of the acupuncture needle body (111) are horizontally aligned in the initial state and the end state.
6. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 5 wherein: A contact block (150) is slidably installed inside the groove (140). A first spring (151) is installed between the contact block (150) and the groove (140). The end of the contact block (150) is set as an arc surface. A slider (152) is installed inside the perforation (141). Both ends of the slider (152) are set as arc surfaces. In the initial and final states of the acupuncture needle body (111), the contact block (150) abuts against the slider (152), so one end of the slider (152) is inserted into the docking hole (142).
7. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 6 wherein: The inner wall of the perforation (141) is provided with a movable groove (160), and a return spring (161) is installed between the movable groove (160) and the slider (152). The return spring (161) is used to reset the slider (152).
8. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 1 wherein: 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). In the initial and final states of the acupuncture needle body (111), the first guide block (170) and the second guide block (171) are in contact. In the needle withdrawal state of the acupuncture needle body (111), the first guide block (170) and the second guide block (171) are far apart from each other.
9. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 1 wherein: A pressing plate (180) is integrally installed on the sleeve body (110), and the pressing plate (180) is used to facilitate holding the sleeve body (110); a through slot (181) is provided on the threaded rod (112) for the acupuncture needle body (111) to pass through.
10. The self-destructing, single-use, sterile, disposable acupuncture needle of claim 9 wherein: The pressing sleeve (113) is equipped with a push block (220), the threaded rod (112) is provided with a retraction groove (221), the retraction groove (221) is connected to the through slot (181), the retraction groove (221) is equipped with a blade (222), the inner wall of the retraction groove (221) is provided with a connecting groove (223), the upper end of the blade (222) is slidably engaged with the connecting groove (223), and a second spring (224) is installed between the blade (222) and the connecting groove (223).