Ejection acupuncture catgut embedding device

The ejector acupuncture thread embedding device, with its mechanical ejection structure and multiple safety features, solves the problems of slow operation speed, difficulty in controlling depth, and safety hazards in traditional acupuncture thread embedding techniques. It achieves high-speed puncture, precise depth control, and painless operation, making it suitable for community healthcare and primary healthcare institutions.

CN121971291APending Publication Date: 2026-05-05何加根
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-05
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional acupuncture thread embedding techniques have low standardization, cause significant pain to patients, pose prominent safety risks, and existing improved devices lack precise depth control and safety features.

Method used

The ejector acupuncture thread embedding device, which adopts a mechanical ejection structure and multiple safety designs, includes a concealed needle body, a depth adjustment mechanism, and multiple safety mechanisms, to achieve high-speed puncture, precise depth control, and prevention of accidental triggering.

Benefits of technology

It significantly reduces patient pain, improves operational accuracy and safety, and achieves standardized, painless, precise, and safe procedures, making it suitable for promotion in community healthcare and primary healthcare institutions.

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Abstract

The invention discloses an ejection acupuncture catgut embedding device, relates to the technical field of acupuncture catgut embedding devices, and aims to solve the technical problems that a traditional acupuncture catgut embedding technology is low in operation standardization degree, the pain of a patient is obvious, and potential safety hazards are prominent, the ejection acupuncture catgut embedding device comprises a catgut embedding device shell, and one side of the catgut embedding device shell is sleeved with a pressing ring; and a push rod is slidably sleeved in the wire embedding device shell. The three core problems existing in traditional manual catgut embedding are effectively solved. Firstly, the problems that the operation speed is low, and pain is obvious are solved. 2, the problem that the needle inserting depth is difficult to accurately control is solved; 3, the problems of needle exposure risk and cross infection hidden danger are solved; high-speed puncture is achieved through a spring ejection mechanism, the needle inserting time is shortened to the millisecond level, and the pain feeling is remarkably reduced; the depth of the depth adjusting mechanism can be adjusted through a shooting depth groove in the lower sleeve; the hidden needle body design enables the patient not to see the needle tip in the whole course, and the infection risk is eliminated from the source.
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Description

Technical Field

[0001] This invention relates to the field of acupuncture thread embedding technology, and more specifically, to a catapult acupuncture thread embedding device. Background Technology

[0002] Acupuncture thread embedding is a traditional Chinese medicine therapy that involves implanting absorbable protein threads into acupoints to achieve therapeutic effects through continuous stimulation. It is widely used in areas such as chronic pain, obesity, and sub-health management. This technique combines the acupoint stimulation effect of traditional acupuncture with the sustained-release effect of modern biomaterials, offering advantages such as long-lasting efficacy and ease of operation, and has gained attention in clinical promotion in recent years. However, traditional thread embedding mainly relies on the operator holding the needles to puncture and embed the threads, requiring a high level of skill and presenting numerous technical limitations, which hinders the standardization and widespread adoption of this technique at the grassroots level.

[0003] Existing technologies suffer from the following core problems: First, the standardization of operation is low; the speed, depth, and angle of needle insertion depend on the operator's experience, leading to significant differences in therapeutic effects among different operators. Second, patients experience significant pain; manual needle insertion is slow, and the needle remains in the tissue for a long time, causing some patients to refuse treatment due to fear. Third, there are safety concerns; traditional needles have exposed tips, posing risks of occupational exposure and cross-infection. Fourth, existing improved devices are inadequate; while some ejector-type devices can increase needle insertion speed, they lack precise depth control mechanisms or have insufficient safety features, posing a risk of accidental triggering, and their complex structure leads to high costs and difficult maintenance. Therefore, we propose an ejector acupuncture thread embedding device. Summary of the Invention

[0004] The purpose of this invention is to provide a catapult acupuncture thread embedding device to solve the technical problems of low standardization of operation, significant pain for patients, and prominent safety risks in traditional acupuncture thread embedding techniques.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a catapult acupuncture thread embedding device, comprising a thread embedding device housing, a pressure ring sleeved on one side of the thread embedding device housing, a push rod slidably sleeved inside the thread embedding device housing, the push rod passing through the pressure ring, a first spring sleeved on the surface of the push rod, the first spring being located between a protrusion arranged on the surface of the push rod and the pressure ring, a handle sleeved on one end of the push rod, a lower sleeve sleeved at the output end of the thread embedding device housing, a firing depth groove formed on the surface of the lower sleeve, and a protrusion arranged on the surface of the output end of the thread embedding device housing slidably adapted to the inside of the firing depth groove; The push rod is internally fitted with a piston rod, and the protrusions arranged on the piston rod are slidably arranged inside the grooves arranged on the surface of the push rod to limit the sliding of the piston rod. The push rod is fitted with a piston spring inside, and the piston rod is elastically connected to the piston spring. The outer casing of the wire embedding device is fitted with a wire embedding outer needle at the end of the push rod away from the handle, and a wire embedding inner needle is sleeved at the end of the push rod away from the handle. The wire embedding inner needle is inserted into the outer needle. In this device, a thicker outer needle acts as a cannula, while a thinner inner needle slides within its internal channel, together forming the embedding needle assembly. Absorbable protein threads are pre-loaded into the cavity at the tip of the inner needle. At this point, the tip of the inner needle may be slightly retracted within or flush with the opening of the outer needle cannula, ensuring that the needle assembly is a single unit before puncture. The ejector acupuncture embedding device provided by this invention has successfully solved several key technical problems in traditional acupuncture embedding techniques. Specifically, through an innovative mechanical ejection structure and multiple safety designs, this device effectively overcomes three core problems inherent in traditional manual embedding: firstly, it solves the problems of slow operation speed and significant pain—a problem inherent in traditional manual methods. The invention addresses several issues: firstly, needle insertion relies heavily on operator experience, making speed difficult to control and causing intense pain for the patient; secondly, it solves the problem of precise needle depth control – manual operation can result in depth deviations of ±3mm, affecting the stability of therapeutic efficacy; and thirdly, it eliminates the risks of needle exposure and cross-infection – traditional needles expose the needle tip, posing occupational exposure and cross-infection risks. The spring-ejection mechanism of this invention enables high-speed puncture, reducing needle insertion time to milliseconds and significantly reducing pain. The depth adjustment mechanism, through the firing depth groove on the lower cannula, achieves an adjustable depth of 10-15mm with an accuracy of ±0.5mm. The concealed needle design ensures the patient cannot see the needle tip throughout the procedure, eliminating the risk of infection at its source.

[0006] Preferably, the housing of the wire embedder has a first slot, a second slot, a push hole, and a through-hole.

[0007] Preferably, a pin is fixedly connected to one side of the pressure ring, and the pin is inserted into the socket. The end of the pin is provided with an inclined surface, and a slot is provided on the pin.

[0008] Preferably, a sliding adapter pin is installed inside the first slot, and the pin slides inside the second slot via protrusions arranged on its surface. The movement range of the pin is limited. The bottom of the pin is fitted with the protrusions arranged on the surface of the push rod. The pin has an inclined hole. The end of the pin with a bevel is inserted into the inclined hole, and the bevel contacts the inner wall of the inclined hole. A spring-loaded plug is fitted inside the first slot, and the spring on the plug is elastically connected to the pin.

[0009] Preferably, the second slot is fitted with a spring-loaded safety button that slides inside the slot. The safety button has a perforation that fits into the slot. The spring in the safety button keeps it in a raised state when not pressed to prevent accidental activation.

[0010] Preferably, the press hole is slidably fitted with a spring-loaded squeeze button; The spring in the squeeze button allows it to automatically reset after being pressed.

[0011] Preferably, a spring plunger is installed in a hole arranged on the surface of the piston rod, and the end of the squeeze button is in movable contact with the spring plunger.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. The ejector acupuncture embedding device provided by this invention has successfully solved several key technical problems in traditional acupuncture embedding techniques. Specifically, this device, through its innovative mechanical ejection structure and multiple safety designs, effectively overcomes three major problems inherent in traditional manual embedding: First, it solves the problems of slow operation speed and significant pain – traditional manual needle insertion relies on the operator's experience, making speed difficult to control and causing intense pain for the patient; second, it solves the problem of difficulty in accurately controlling needle insertion depth – manual operation can result in a depth deviation of ±3mm, affecting the stability of therapeutic effects; third, it solves the problems of needle exposure risk and cross-infection hazard – traditional needles have exposed needle tips, posing occupational exposure and cross-infection risks. The spring ejection mechanism of this invention enables high-speed puncture, shortening the needle insertion time to the millisecond level and significantly reducing pain; the depth adjustment mechanism achieves an adjustable depth of 10-15mm through the firing depth groove on the lower sleeve, with an accuracy of ±0.5mm; the concealed needle design ensures that the patient cannot see the needle tip throughout the procedure, eliminating the risk of infection at the source.

[0013] 2. In terms of clinical practical value, this invention demonstrates significant technical advantages. Its multiple safety mechanisms (safety buttons, locking pins, etc.) ensure operational safety and prevent accidental triggering. The standardized operating procedure reduces reliance on the operator's skills, enabling non-professionals to perform precise thread embedding. Test data shows that it meets clinical needs. These technological breakthroughs not only improve treatment efficiency and comfort but also achieve the operational goals of "painless, precise, and safe" operation, laying a solid foundation for the standardization and popularization of acupuncture thread embedding technology. It is particularly suitable for promotion and application in community healthcare, family health care, and primary healthcare institutions, and has significant clinical promotion value and social benefits. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the three-dimensional structure of the present invention; Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the wire embedding device housing of the present invention; Figure 4 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 5This is a three-dimensional exploded structural diagram of the present invention, illustrating the overall three-dimensional structure of the ejector acupuncture thread embedding device; Figure 6 This is a three-dimensional exploded structure diagram of the present invention.

[0015] The following are the labels in the diagram: 1. Wire embedding device housing; 11. First groove; 111. Locking pin; 112. Inclined hole; 113. Blocking piece; 12. Second groove; 121. Safety button; 122. Through hole; 13. Press hole; 131. Press button; 14. Insertion hole; 2. Pressure ring; 21. Pin; 211. Inclined surface; 212. Locking groove; 3. Push rod; 4. First spring; 5. Handle; 6. Lower sleeve; 61. Shooting depth groove; 7. Piston rod; 71. Spring plunger; 8. Piston spring; 9. Wire embedding outer needle; 10. Wire embedding inner needle. Detailed Implementation

[0016] like Figures 1-2 and Figures 3-6 As shown, the present invention relates to a catapult acupuncture thread embedding device, comprising a thread embedding device housing 1, a pressure ring 2 fitted on one side of the thread embedding device housing 1, a push rod 3 slidably fitted inside the thread embedding device housing 1, the push rod 3 passing through the pressure ring 2, a first spring 4 fitted on the surface of the push rod 3, the first spring 4 being located between a protrusion arranged on the surface of the push rod 3 and the pressure ring 2, a handle 5 fitted to one end of the push rod 3, a lower sleeve 6 fitted at the output end of the thread embedding device housing 1, a firing depth groove 61 formed on the surface of the lower sleeve 6, a protrusion arranged on the surface of the output end of the thread embedding device housing 1 slidably adapted to the firing depth groove 61, a piston rod 7 slidably adapted inside the push rod 3, and a protrusion arranged on the piston rod 7 slidably arranged within a groove arranged on the surface of the push rod 3. The piston rod 7 is limited in its sliding position. A piston spring 8 is sleeved inside the push rod 3, and the piston rod 7 is elastically connected to the piston spring 8. The outer needle 9 is slidably fitted inside the outer shell 1 of the suture embedding device at the end of the push rod 3 away from the handle 5. The inner needle 10 is sleeved at the end of the push rod 3 away from the handle 5 and is inserted into the outer needle 9. The thicker outer needle 9 serves as a sheath, while the thinner inner needle 10 is slidably fitted into its internal channel. Together, they form the suture embedding needle assembly. The absorbable protein thread is pre-loaded into the cavity at the front end of the inner needle 10. At this time, the tip of the inner needle may be slightly retracted into or flush with the opening of the outer needle tube to ensure that the needle assembly is a whole before puncture.

[0017] The ejector acupuncture thread embedding device provided by this invention has successfully solved several key technical problems in traditional acupuncture thread embedding techniques. Specifically, through an innovative mechanical ejection structure and multiple safety designs, this device effectively overcomes three major problems inherent in traditional manual thread embedding: First, it solves the problems of slow operation speed and significant pain – traditional manual needle insertion relies on the operator's experience, making speed difficult to control and causing intense pain for the patient; second, it solves the problem of difficulty in accurately controlling the needle insertion depth – manual operation depth deviation can reach ±3mm, affecting the stability of therapeutic effects; third, it solves the problems of needle exposure risk and cross-infection hazard – traditional needles have exposed needle tips, posing occupational exposure and cross-infection risks. The spring ejection mechanism of this invention achieves a high-speed puncture of 1.4m / s, shortening the needle insertion time to the millisecond level and significantly reducing pain; the depth adjustment mechanism achieves an adjustable depth of 10-15mm through the firing depth groove 61 on the lower sleeve 6, with an accuracy of ±0.5mm; the concealed needle design ensures that the patient cannot see the needle tip throughout the procedure, eliminating the risk of infection at the source.

[0018] like Figures 3-6 As shown, the housing 1 of the wire embedder in this embodiment is provided with a first slot 11, a second slot 12 and a push hole 13, as well as a through insertion hole 14. A pin 21 is fixedly connected to one side of the pressure ring 2 and the pin 21 is inserted into the insertion hole 14. The end of the pin 21 is provided with a bevel 211 and a slot 212 is provided on the pin 21.

[0019] Combination Figures 4-6 As shown, in this embodiment, a sliding adapter pin 111 is fitted inside the first slot 11. The pin 111 slides inside the second slot 12 through protrusions arranged on its surface, limiting the range of movement of the pin 111. The bottom of the pin 111 fits into the protrusions arranged on the surface of the push rod 3. An inclined hole 112 is arranged on the pin 111. The end of the pin 21 with a bevel 211 is inserted into the inclined hole 112, and the bevel 211 contacts the inner wall of the inclined hole 112. A spring-loaded plug 113 is sleeved inside the first slot 11, and the spring on the plug 113 is elastically connected to the pin 111. The spring of the plug 113 provides a restoring force for the pin 111, ensuring that the pin 111 remains locked when not subjected to external force.

[0020] Combination Figures 4-6 As shown, in this embodiment, a safety button 121 with a spring is slidably fitted inside the second slot 12. The safety button 121 has a through hole 122, and the through hole 122 fits into the slot 212. The spring of the safety button 121 keeps it in a raised state when not pressed to prevent accidental activation.

[0021] Combination Figures 4-6As shown, in this embodiment, a spring-loaded squeeze button 131 is slidably fitted inside the press hole 13, and the spring of the squeeze button 131 enables it to automatically reset after being pressed.

[0022] Combination Figures 4-5 As shown, in this embodiment, a spring plunger 71 is installed in the hole arranged on the surface of the piston rod 7, and the end of the squeeze button 131 is in active contact with the spring plunger 71. The spring plunger 71 is used to lock the compression state of the piston rod 7. When the squeeze button 131 is pressed, the spring plunger 71 is pushed away from the locked position, releasing the energy of the piston spring 8.

[0023] In terms of clinical practical value, this invention demonstrates significant technical advantages of the ejector thread embedding device. Its multiple safety mechanisms (safety button 121, locking pin 111, etc.) ensure operational safety and prevent accidental triggering. The standardized operating procedure reduces reliance on the operator's skills, enabling non-professionals to perform precise thread embedding. Test data shows that it meets clinical needs. These technological breakthroughs not only improve treatment efficiency and comfort but also achieve the operational goals of "painless, precise, and safe" operation, laying a solid foundation for the standardization and popularization of acupuncture thread embedding technology. It is particularly suitable for promotion and application in community healthcare, family health care, and primary healthcare institutions, and has significant clinical promotion value and social benefits.

[0024] Working principle: This embodiment provides a catapult acupuncture thread embedding device. First, the push rod 3 is pulled backward by the handle 5, so that the protrusion on the surface of the push rod 3 is locked by the locking pin 111, completing the compression and energy storage of the first spring 4. Then, the thread embedding needle assembly (composed of the outer thread embedding needle 9 and the inner thread embedding needle 10) pre-loaded with absorbable protein thread is screwed into the internal thread of the piston rod 7, and the piston rod 7 is pushed by a special tool to compress the piston spring 8, and the energy storage state is locked by the spring plunger 71. When in use, the position of the shooting depth groove 61 on the lower sleeve 6 is adjusted according to the required puncture depth. After the device is close to the skin, the safety button 121 is pressed to release the safety, and then the pressure ring 2 is pressed down. The locking pin 111 is pushed away from the push rod 3 by the inclined surface 211 of the pin 21. The first spring releases energy to drive the push rod 3 to drive the thread embedding needle assembly to be ejected at high speed to penetrate the skin. After the puncture is completed, the piston spring 8 is released by pressing the squeeze button 131, which pushes the inner thread embedding needle to implant the protein thread under the skin. At the same time, the outer thread embedding needle 9 is slowly pulled out to complete the thread embedding operation.

[0025] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A catapult acupuncture thread embedding device, characterized in that, The device includes a wire embedding device housing (1), a pressure ring (2) is fitted on one side of the wire embedding device housing (1), a push rod (3) is slidably fitted inside the wire embedding device housing (1), and the push rod (3) passes through the pressure ring (2). A first spring (4) is fitted on the surface of the push rod (3), and the first spring (4) is located between the protrusion arranged on the surface of the push rod (3) and the pressure ring (2). A handle (5) is fitted on one end of the push rod (3). A lower sleeve (6) is fitted on the output end of the wire embedding device housing (1). A firing depth groove (61) is opened on the surface of the lower sleeve (6). The protrusion arranged on the surface of the output end of the wire embedding device housing (1) is slidably adapted to the inside of the firing depth groove (61). The push rod (3) is internally fitted with a piston rod (7), and the protrusions arranged on the piston rod (7) are slidably arranged inside the grooves arranged on the surface of the push rod (3) to limit the sliding of the piston rod (7); The push rod (3) is fitted with a piston spring (8), and the piston rod (7) is elastically connected to the piston spring (8); The outer casing (1) of the wire embedding device is fitted with a wire embedding outer needle (9) at the end of the push rod (3) away from the handle (5), and a wire embedding inner needle (10) is sleeved at the end of the push rod (3) away from the handle (5), and the wire embedding inner needle (10) is inserted into the wire embedding outer needle (9). Among them, the thicker outer needle (9) serves as a cannula, while the thinner inner needle (10) slides and adapts to its internal channel. Together, they form the thread embedding needle group. The absorbable protein thread is pre-loaded into the cavity at the front end of the inner needle (10). At this time, the tip of the inner needle may be slightly retracted into or flush with the opening of the outer needle tube, ensuring that the needle group is a whole before puncture.

2. The ejector acupuncture thread embedding device according to claim 1, characterized in that, The housing (1) of the buried wire device is provided with a first slot (11), a second slot (12) and a push hole (13), as well as a through-hole (14).

3. The ejector acupuncture thread embedding device according to claim 2, characterized in that, A pin (21) is fixedly connected to one side of the pressure ring (2), and the pin (21) is inserted into the socket (14). The end of the pin (21) is provided with a bevel (211), and a slot (212) is provided on the pin (21).

4. The ejector acupuncture thread embedding device according to claim 3, characterized in that, The first slot (11) is fitted with a sliding adapter pin (111). The pin (111) slides inside the second slot (12) through the protrusions arranged on its surface. The movement range of the pin (111) is limited. The bottom of the pin (111) is fitted with the protrusions arranged on the surface of the push rod (3). The pin (111) is provided with an inclined hole (112). The end of the pin (21) with the inclined surface (211) is inserted into the inclined hole (112), and the inclined surface (211) contacts the inner wall of the inclined hole (112). The first slot (11) is fitted with a spring-loaded plug (113), and the spring on the plug (113) is elastically connected to the pin (111).

5. The ejector acupuncture thread embedding device according to claim 4, characterized in that, The second slot (12) is fitted with a spring-loaded safety button (121) inside. The safety button (121) has a through hole (122) and the through hole (122) fits into the slot (212). The spring of the safety button (121) keeps it in a raised state when not pressed to prevent accidental activation.

6. The ejector acupuncture thread embedding device according to claim 5, characterized in that, The press hole (13) is fitted with a spring-loaded squeeze button (131) inside. The spring of the squeeze button (131) allows it to automatically reset after being pressed.

7. The ejector acupuncture thread embedding device according to claim 6, characterized in that, A spring plunger (71) is installed in a hole arranged on the surface of the piston rod (7), and the end of the squeeze button (131) is in contact with the spring plunger (71).