Modular acupuncture injection device

Abstract

The application relates to the technical field of medical devices and discloses a modular acupuncture injection device which comprises a needle body assembly and a medicine storage module detachably connected with the needle body assembly; the needle body assembly comprises a needle body, the inside of the needle body is provided with a medicine flow channel, and the tip of the needle body is provided with a medicine injection hole in communication with the medicine flow channel; the medicine storage module is an independent sealed unit pre-filled with medicine; the needle body assembly and the medicine storage module are detachably connected and separated through a docking interface, and the docking interface establishes a medicine passage when being connected. The acupuncture injection device can detachably connect an acupuncture needle with a medicine storage module, realizes aseptic sealed connection through a docking interface, can realize flexible treatment of 'one needle with multiple medicines' in the acupuncture process, and improves operation convenience and medicine safety.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a modular acupuncture injection device. Background Technology

[0002] Combining acupuncture with acupoint injection is an important approach in Traditional Chinese Medicine (TCM) treatment. Currently, acupuncture needles are solid needles and cannot be used for drug injection. If drug injection is required, it must either be administered before acupuncture or via a lateral insertion during the acupuncture session. This method allows for a single, large-volume injection of medication, and does not enable slow, prolonged drug injection during acupuncture.

[0003] Chinese invention patent application CN 106038280 A (publication date: October 26, 2016) discloses a drug-storage acupuncture needle, including a needle body and a sac-like portion for containing medicinal liquid. One end of the sac-like portion is provided with a vacuum suction cup for fixing the acupuncture needle, and the other end is connected to the needle body. The needle body is a hollow tube, and several openings for absorbing and releasing medicinal liquid are provided through the side wall of the needle body. Although the above patent can store medicine in the acupuncture needle by adding medicine, it only allows the medicine to be absorbed before acupuncture treatment, and cannot add or change medicine during acupuncture. Moreover, the sac-like portion and the needle body are an integral unit, and the entire sac-like portion must be discarded after a single use because it stores medicine, and it cannot be reused, resulting in high medical costs in the long term. Summary of the Invention

[0004] To address the shortcomings of the prior art, this invention provides a modular acupuncture injection device that facilitates drug injection and replacement during acupuncture, increasing operational flexibility.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A modular acupuncture injection device includes: a needle body assembly; and a drug storage module detachably connected to the needle body assembly; the needle body assembly includes a needle body, the needle body having a drug flow channel inside, and an injection hole communicating with the drug flow channel near the tip of the needle body; the drug storage module is an independent sealed unit pre-filled with drug; the needle body assembly and the drug storage module are detachably connected and separated through a docking interface, the docking interface establishing a drug pathway when connected.

[0006] As a preferred technical solution, the docking interface includes: a hollow puncture needle disposed on one of the needle body assembly or the drug storage module, and a self-sealing diaphragm disposed on the other component.

[0007] As a preferred technical solution, the interface end of the needle body assembly is provided with an interface groove, the puncture needle is located in the center of the interface groove, the interface end of the drug storage module is provided with a hollow connector adapted to the shape of the interface groove, and a self-sealing diaphragm is sealed inside the hollow connector.

[0008] As a preferred technical solution, the docking interface is also provided with a guide and limiting structure.

[0009] As a preferred technical solution, the guide limiting structure is a non-circular cross-section structure or a keyway fit structure that fits together.

[0010] As a preferred technical solution, the interface between the needle assembly and the drug storage module is also provided with a locking structure.

[0011] As a preferred technical solution, a one-way flow control component is provided in the drug flow channel of the needle assembly.

[0012] As a preferred technical solution, the one-way flow control component is a ball valve. The ball valve includes a valve seat located in the liquid flow channel. The valve seat has an upper and lower through valve channel. The middle of the valve channel has a valve cavity that accommodates and allows the ball to move. The bottom of the valve cavity is inverted cone shape and at least one drainage groove communicating with the valve channel is provided on the cone surface.

[0013] As a preferred technical solution, the injection hole is located on the side wall near the tip of the needle body. Multiple groups of injection holes are arranged along the axial direction of the needle body, and multiple injection holes in each group are arranged around the circumference of the needle body.

[0014] As a preferred technical solution, the drug storage module is a flexible drug capsule.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The modular acupuncture injection device of the present invention features a modular design for the needle assembly and the drug storage module, which are connected via a detachable docking interface. This allows for rapid replacement of the drug storage module and enables a single needle with multiple medications during acupuncture, improving the flexibility and ease of operation in clinical treatment. The drug storage module is a pre-filled, independently sealed unit, and the docking interface design ensures sterility during connection and separation, effectively avoiding the risk of cross-infection and contributing to medication safety.

[0016] The modular acupuncture injection device of the present invention allows for the sterilization and reuse of the needle components, with only the disposable drug storage module serving as a consumable. Compared to a completely disposable device, this significantly reduces the overall medical cost over long-term use.

[0017] The modular acupuncture injection device of the present invention has a one-way flow control component installed in the needle body, which can effectively prevent the backflow of medicine or even tissue fluid, and at the same time control the problem of excessively rapid release of medicine. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of point A within the dashed box; Figure 3 yes Figure 1 Enlarged view of point B within the dashed box.

[0020] Reference numerals: 1-Needle body assembly, 2-Drug storage module, 11-Needle body, 12-Drug flow channel, 13-Injection port, 14-Puncture needle, 15-Interface groove, 16-One-way flow control assembly, 161-Valve seat, 162-Valve channel, 163-Valve cavity, 164-Ball, 165-Drainage groove, 21-Self-sealing diaphragm, 22-Hollow connector. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] A modular acupuncture injection device, such as Figures 1-3 As shown, it includes: a needle body assembly 1; and a drug storage module 2 detachably connected to the needle body assembly 1; The needle assembly 1 includes a needle body 11, which has a drug flow channel 12 inside. The needle body 11 has an injection hole 13 near its tip that communicates with the drug flow channel 12. The drug storage module 2 is an independent sealed unit pre-filled with drug. The needle assembly 1 and the drug storage module 2 are detachably connected and separated through a docking interface. The docking interface establishes a drug pathway when connected and can maintain a sterile state during connection and separation.

[0023] Preferably, the injection hole 13 is located on the side wall near the tip of the needle body 11. Multiple injection holes 13 are provided and arranged around the circumference of the needle body 11, which helps to form a better diffusion effect during injection and reduce the risk of blockage.

[0024] In one specific embodiment, such as Figure 2 As shown, the docking interface includes: a hollow puncture needle 14 disposed on one of the needle body assembly 1 or the drug storage module 2; and a self-sealing diaphragm 21 disposed on the other component. Figure 2 In the illustrated embodiment, the puncture needle 14 is disposed at the interface end of the needle body assembly 1, and the puncture needle 14 communicates with the drug flow channel 12. A self-sealing diaphragm 21 is disposed on the drug storage module 2. When the needle body assembly 1 and the drug storage module 2 are connected, the puncture needle 14 pierces the elastic self-sealing diaphragm 21, establishing a fluid pathway from the drug storage module 2 to the drug flow channel 12. When the two components need to be separated, as the puncture needle 14 is withdrawn, the self-sealing diaphragm 21, due to its own elastic recovery capability, can instantly and automatically seal the small hole formed by the puncture; this ensures both the sterility of the drug flow channel 12 during connection and prevents leakage of the remaining drug solution in the drug storage module 2 after separation. Preferably, the docking interfaces of the needle body assembly 1 and the drug storage module 2 are respectively provided with protective covers to ensure that the docking interfaces are not contaminated before use. The protective covers are removed before connection.

[0025] Preferably, the interface end of the needle assembly 1 is provided with an interface groove 15, and the puncture needle 14 is disposed in the center of the interface groove 15. The interface end of the drug storage module 2 is provided with a hollow connector 22 adapted to the shape of the interface groove 15, and a self-sealing diaphragm 21 is sealed inside the hollow connector 22; the needle assembly 1 and the drug storage module 2 are fitted together. More preferably, the docking interface is also provided with a guiding and limiting structure for guiding and ensuring correct connection. In one embodiment, the guiding and limiting structure is a non-circular cross-sectional structure that matches each other. For example, the interface groove 15 and the hollow connector 22 are square or irregular in shape, and can only be inserted when their positions match to achieve accurate positioning. In another embodiment, the guiding and limiting structure is a keyway mating structure. One of the outer peripheries of the interface groove 15 or the hollow connector 22 is provided with a protruding key, and the other outer periphery is provided with a corresponding groove. Positioning is achieved through the mating of the key and the groove. By guiding the hollow connector to be accurately inserted into the interface groove through the guide and limiting structure, the skill requirements for the operator can be reduced. By embedding the puncture needle in the interface groove, the operator can avoid accidental contact and injury.

[0026] Preferably, the interface between the needle assembly 1 and the drug storage module 2 is further provided with a locking structure to ensure the stability of the connection and prevent the drug storage module 2 from falling off during acupuncture injection. In one embodiment, the interface groove 15 of the needle assembly 1 is provided with a buckle on its outer periphery, and the hollow connector 22 of the drug storage module 2 is provided with a slot on its outer periphery. The buckle and the slot cooperate to lock the two together. The locking structure can also be a threaded structure, for example, an internal thread is provided on the inner wall of the interface groove 15 of the needle assembly, and an external thread is provided on the outer wall of the hollow connector 22 of the drug storage module. The two are locked by rotation.

[0027] Furthermore, a one-way flow control component 16 is provided within the drug flow channel 12 of the needle assembly 1 to prevent the drug solution, or even tissue fluid and blood, from flowing back into the drug flow channel. The one-way flow control component 16 can be a ball valve, such as... Figure 3 As shown, the ball valve includes a valve seat 161 located in the liquid flow channel 12. The valve seat 161 has a vertically penetrating valve channel 162. A valve cavity 163 is located in the middle of the valve channel 162, accommodating and allowing the movement of the ball 164. The bottom of the valve cavity is inverted conical, and at least one drainage groove 165 communicating with the valve channel 162 is provided on the conical surface. When a forward injection pressure is applied, the liquid pushes the ball 164 downwards, and the ball 164 abuts against the conical surface at the bottom of the valve cavity 163. Due to the presence of the drainage groove 165, the ball 164 will not completely block the lower valve channel 162, forming a passage and achieving a slow-release effect. When reverse pressure occurs, the backflowing liquid or back pressure pushes the ball 164 towards the upper part of the valve cavity 163, blocking the valve channel and thus tightly sealing the liquid flow channel. Of course, the one-way flow control component 16 can also be other one-way valves in the prior art.

[0028] In a preferred embodiment, the drug storage module 2 is a flexible drug capsule made of a soft, compressible composite membrane material, which can be used to dispense the liquid medicine by directly squeezing the capsule by hand. Alternatively, the drug storage module 2 can also be an injection cylinder structure with a movable piston.

[0029] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A modular acupuncture injection device, comprising: The needle assembly is characterized in that it further includes a drug storage module detachably connected to the needle assembly; the needle assembly includes a needle body, the needle body has a drug flow channel inside, and a drug injection hole communicating with the drug flow channel is provided near the tip of the needle body; the drug storage module is an independent sealed unit pre-filled with drug; the needle assembly and the drug storage module are detachably connected and separated through a docking interface, and the docking interface establishes a drug pathway when connected.

2. The modular acupuncture injection device according to claim 1, characterized in that: The docking interface includes: a hollow puncture needle disposed on one of the needle body assembly or the drug storage module, and a self-sealing diaphragm disposed on the other.

3. The modular acupuncture injection device according to claim 2, characterized in that: The interface end of the needle assembly is provided with an interface groove, and the puncture needle is located in the center of the interface groove. The interface end of the drug storage module is provided with a hollow connector that matches the shape of the interface groove, and a self-sealing diaphragm is sealed inside the hollow connector.

4. The modular acupuncture injection device according to claim 3, characterized in that: The docking interface is also equipped with a guide and limit structure.

5. The modular acupuncture injection device according to claim 4, characterized in that: The guiding and limiting structure is a non-circular cross-section structure or a keyway fit structure that fits together.

6. The modular acupuncture injection device according to claim 2, characterized in that: The interface between the needle assembly and the drug storage module is also equipped with a locking structure.

7. The modular acupuncture injection device according to claim 1, characterized in that: A one-way flow control component is provided in the drug flow channel of the needle assembly.

8. The modular acupuncture injection device according to claim 7, characterized in that: The one-way flow control component is a ball valve, which includes a valve seat located in the liquid flow channel. The valve seat has an upper and lower through valve channel. The middle of the valve channel has a valve cavity that accommodates and allows the ball to move. The bottom of the valve cavity is inverted cone shape and the cone surface has at least one drainage groove that communicates with the valve channel.

9. The modular acupuncture injection device according to claim 1, characterized in that: The injection holes are located on the side wall near the tip of the needle body. Multiple groups of injection holes are arranged along the axial direction of the needle body, and multiple injection holes in each group are arranged around the circumference of the needle body.

10. The modular acupuncture injection device according to claim 1, characterized in that: The drug storage module is a flexible drug capsule.

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