Multi-channel marrow cavity infusion needle head and control system

Abstract

The invention discloses a multi-channel marrow cavity infusion needle and a control system. The multi-channel marrow cavity infusion needle comprises a needle body, a main infusion channel is arranged in the needle head body, and at least one auxiliary infusion channel is arranged in the main infusion channel. An external extension tube communicated with the main infusion channel is arranged on the needle head body, one end of the auxiliary infusion channel faces a needle opening of the needle head body, the other end of the auxiliary infusion channel penetrates out of the external extension tube, and a connector used for adding medicine is arranged at the other end of the auxiliary infusion channel; the main infusion channel and the connector are used for being externally connected with a first injector and a second injector respectively. By means of the auxiliary infusion channel, multi-medicine cooperative injection can be achieved, diversified infusion requirements are met, the medicine can be conveyed to the diseased region more accurately, the treatment efficiency is greatly improved, and the rescue time window is greatly shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multi-channel intramedullary infusion needle and a control system. Background Art

[0002] Traditional intraosseous infusion devices can only infuse one drug at a time. If multiple drugs are to be infused, the infusion channel needs to be changed frequently. This is not only time-consuming, but also increases the risk of infection, making it difficult to quickly achieve simultaneous infusion of multiple drugs in emergency situations. Frequent changes in infusion channels make it difficult to accurately deliver different drugs to the lesion site, greatly reducing treatment efficiency. Especially in scenarios such as emergency treatment, intraosseous infusion devices lengthen the rescue time window and cannot buy rescue time for patients. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a multi-channel intramedullary infusion needle and a control system to improve treatment efficiency and shorten the rescue time window.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A multi-channel intramedullary infusion needle, comprising a needle body;

[0006] A main infusion channel is provided in the needle body, and at least one auxiliary infusion channel is provided in the main infusion channel;

[0007] The needle body is provided with an external extension tube connected to the main infusion channel, one end of the auxiliary infusion channel is arranged toward the needle port of the needle body, the other end of the auxiliary infusion channel passes through the external extension tube, and the other end of the auxiliary infusion channel is provided with an interface for adding additional drugs;

[0008] The main infusion channel and the interface are used for externally connecting a first syringe and a second syringe respectively.

[0009] In order to solve the above technical problems, another technical solution adopted by the present invention is:

[0010] A multi-channel intramedullary infusion control system, comprising a main controller, a flow sensor, a pressure sensor and the above-mentioned multi-channel intramedullary infusion needle;

[0011] The flow sensor and the pressure sensor are both used to be arranged in the main infusion channel, and the main controller is electrically connected to the flow sensor and the pressure sensor respectively;

[0012] The main controller is used for communicating with the first syringe and the second syringe.

[0013] The beneficial effects of the present invention are as follows: It provides a multi-channel intramedullary infusion needle and control system. In the needle part, a multi-channel injection pipeline composed of a main infusion channel and at least one auxiliary infusion channel is adopted. While monitoring and controlling the pressure and flow rate of the main infusion channel, the auxiliary infusion channel can be used to achieve multi-drug synergistic injection, meeting diverse infusion needs, enabling drugs to be delivered more precisely to the lesion site, greatly improving the treatment efficiency, reducing the risk of complications, and achieving safe perfusion. It supports the combined use of multiple drugs and can quickly and precisely allocate and infuse drugs according to the specific condition and emergency needs of the patient. Through this multi-drug combination method, the rescue time window is greatly shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic structural diagram of a multi-channel intramedullary infusion needle of the present invention;

[0015] Figure 2 FIG. is a schematic structural diagram of a needle fixing piece of a multi-channel intramedullary infusion needle according to an embodiment of the present invention;

[0016] Figure 3 FIG. is a schematic installation diagram of a multi-channel intramedullary infusion needle according to an embodiment of the present invention on a first syringe;

[0017] Figure 4 FIG. is a system block diagram of a multi-channel intramedullary infusion control system of the present invention.

[0018] Reference Numeral Explanation:

[0019] 1. Needle body; 2. Main infusion channel; 3. Auxiliary infusion channel; 4. External extension tube; 5. Interface; 6. Needle fixing piece; 7. Pull rod; 8. Magnesium alloy wire; 9. Opening; 10. Thickened arc edge; 11. Sampling chip; 12. Main controller; 13. Display screen; 14. Buzzer; 15. Control button; 16. Flow sensor; 17. Pressure sensor; 18. First syringe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To describe in detail the technical content, achieved objectives, and effects of the present invention, the following is described in conjunction with the embodiments and accompanied by the drawings.

[0021] Please refer to Figures 1 to 3 , a multi-channel intramedullary infusion needle, comprising a needle body 1;

[0022] The needle body 1 is provided with a main infusion channel 2, and at least one auxiliary infusion channel 3 is arranged in the main infusion channel 2;

[0023] An external extension tube 4 communicating with the main infusion channel 2 is provided on the needle body 1. One end of the secondary infusion channel 3 is arranged towards the needle orifice of the needle body 1, and the other end of the secondary infusion channel 3 penetrates through the external extension tube 4 and is provided with an interface 5 for adding drugs.

[0024] The main infusion channel 2 and the interface 5 are respectively used for externally connecting a first syringe 18 and a second syringe.

[0025] As can be seen from the above description, the beneficial effects of the present invention are as follows: A multi-channel injection pipeline composed of the main infusion channel 2 and at least one secondary infusion channel 3 is adopted in the needle part. The secondary infusion channel 3 can be used to realize multi-drug co-injection, meet diverse infusion requirements, enable drugs to be delivered to the lesion site more accurately, and greatly improve the treatment efficiency; it supports the combined use of multiple drugs, and can quickly and accurately allocate and infuse drugs according to the specific condition and first aid needs of the patient. Through this multi-drug combination method, the rescue time window is greatly shortened.

[0026] Furthermore, antibacterial and anticoagulant composite coatings are provided on the inner walls of both the main infusion channel 2 and the secondary infusion channel 3.

[0027] As can be seen from the above description, the antibacterial and anticoagulant composite coating can effectively inhibit the attachment and growth of bacteria on the inner wall of the pipeline, greatly reducing the risk of infection caused by bacterial contamination during the infusion process, and providing a more solid guarantee for the treatment safety of patients. Especially in the first aid scenario, the patient's immunity is often at a relatively low level. This antibacterial design can significantly reduce the occurrence of complications and avoid aggravating the patient's condition due to infection problems; at the same time, it can also prevent blood from coagulating in the pipeline, avoid affecting drug infusion due to blood blockage of the pipeline, and ensure the smoothness of the infusion process.

[0028] Furthermore, it further includes a driving device, a needle fixing piece 6, a pull rod 7, and a magnesium alloy wire 8;

[0029] At least two of the needle fixing pieces 6 are arranged around the circumferential side of the needle body 1, and each needle fixing piece 6 can rotate relative to the needle body 1;

[0030] Openings 9 corresponding to the needle fixing pieces 6 one by one are provided on the surface of the needle body 1. One end of the pull rod 7 is located in the main infusion channel 2. One end of the pull rod 7 is connected to one end of the magnesium alloy wire 8, and the other end of the magnesium alloy wire 8 passes through the opening 9 and is connected to the needle fixing piece 6, and the magnesium alloy wires 8 correspond to the needle fixing pieces 6 one by one.

[0031] As can be seen from the above description, after the needle penetrates into the internal position of the human tissue such as the heart, the driving device can be used to drive the pull rod 7, so that the pull rod 7 unfolds each needle fixing piece 6 through the magnesium alloy wire 8, making it contact the human tissue, so that the needle can be stably positioned in the human tissue without displacement and angle deviation, reducing the difficulty of injection operation.

[0032] Further, one side of the needle fixing piece 6 for contacting the human tissue is a thickened arc edge 10.

[0033] As can be seen from the above description, by designing one side of the needle fixing piece 6 for contacting the human tissue as the thickened arc edge 10, the contact area with the human tissue can be effectively increased, the pressure can be reduced, and the stability and safety of the contact between the needle fixing piece 6 and the human tissue can be improved.

[0034] Further, the shape and size of the opening 9 are adapted to the needle fixing piece 6;

[0035] The needle fixing piece 6 can block the opening 9.

[0036] As can be seen from the above description, the shape and size of the opening 9 are adapted to the needle fixing piece 6, so that the needle fixing piece 6 can completely block the opening 9 in the storage state, avoiding increasing the resistance during the needle puncture process.

[0037] Further, a sampling chip 11 for collecting human physiological data is embedded in the needle fixing piece 6.

[0038] As can be seen from the above description, the sampling chip 11 can collect human physiological data in real time, such as key indicators such as tissue fluid composition, local pH value, and ion concentration. Medical staff can quickly judge the trend of the patient's condition change based on these immediate data, adjust the treatment plan in time, and achieve precise and personalized medical treatment. Especially in the emergency and intensive care scenarios, it can strive for more favorable treatment opportunities for patients.

[0039] Please refer to Figure 4 , a multi-channel intramedullary infusion control system, including a main controller 12, a flow sensor 16, a pressure sensor 17, and the above-mentioned multi-channel intramedullary infusion needle;

[0040] Both the flow sensor 16 and the pressure sensor 17 are arranged in the main infusion channel 2, and the main controller 12 is electrically connected to the flow sensor 16 and the pressure sensor 17 respectively;

[0041] The main controller 12 is used for communicating and connecting with the first syringe 18 and the second syringe.

[0042] As can be seen from the above description, the beneficial effects of the present invention are as follows: The injection pipeline of the multi-channel group composed of the main infusion channel 2 and at least one auxiliary infusion channel 3 is adopted in the needle part. While monitoring and controlling the pressure and flow rate of the main infusion channel 2, the auxiliary infusion channel 3 can be used to realize the co-injection of multiple drugs, meet the diversified infusion needs, enable the drugs to be delivered more accurately to the lesion site, greatly improve the treatment efficiency, and reduce the risk of complications, realizing safe perfusion; support the combined use of multiple drugs, and can quickly and accurately allocate and infuse drugs according to the specific condition and emergency needs of the patient. By this way of combining multiple drugs, the rescue time window is greatly shortened.

[0043] Further, the main controller 12 is electrically connected to the driving device.

[0044] As can be seen from the above description, the main controller 12 is electrically connected to the driving device to facilitate the automatic control of the unfolding and storage process of the needle fixing piece 6; and by controlling the output voltage of the driving device, the stroke of the pull rod 7 can be effectively adjusted, that is, the unfolding angle of the needle fixing piece 6 can be flexibly changed to meet the usage requirements in different scenarios.

[0045] Further, it further includes a display screen 13;

[0046] The main controller 12 is electrically connected to the display screen 13.

[0047] As can be seen from the above description, medical staff can directly view the real-time pressure and flow data in the main infusion channel 2, as well as key information such as the remaining amount of drugs and infusion rate of the first syringe 18 and the second syringe through the display screen 13, realizing the whole-process visual monitoring of the infusion process. The real-time presentation of data facilitates medical staff to quickly judge the infusion state. When abnormal situations such as abnormal pressure and flow rate fluctuations occur, they can adjust the treatment plan in time to avoid medical risks caused by information lag.

[0048] Further, it further includes an alarm;

[0049] The main controller 12 is electrically connected to the alarm.

[0050] As can be seen from the above description, when the main controller 12 receives abnormal data transmitted by the flow sensor 16 or the pressure sensor 17, such as a sudden increase in pressure, an abnormal decrease or interruption in flow rate due to blockage of the infusion channel, it will immediately trigger the alarm to give a warning to medical staff in the form of sound and light, etc., ensuring that they can detect the infusion abnormality in the first time, quickly investigate and handle the problem, and avoid delaying treatment or causing adverse reactions in patients due to infusion failures.

[0051] Please refer to Figures 1 to 3 , Example 1 of the present invention is:

[0052] A multi-channel intramedullary infusion needle, comprising a needle body 1; a main infusion channel 2 is provided in the needle body 1, and at least one secondary infusion channel 3 is provided in the main infusion channel 2; an external extension tube 4 communicating with the main infusion channel 2 is provided on the needle body 1, one end of the secondary infusion channel 3 is arranged towards the needle opening of the needle body 1, the other end of the secondary infusion channel 3 passes through the external extension tube 4 and is provided with an interface 5 for adding drugs;

[0053] The main infusion channel 2 and the interface 5 are respectively used to connect an external first syringe 18 and a second syringe. Among them, the needle body 1 is made by using laser cutting technology; the inner diameter of the main infusion channel 2 is accurately designed to be 1.2 mm, and the inner diameter of the secondary infusion channel 3 is set to be 0.4 mm.

[0054] In this embodiment, antibacterial and anticoagulant composite coatings are provided on the inner walls of both the main infusion channel 2 and the secondary infusion channel 3; the composition of the antibacterial and anticoagulant composite coating is as follows:

[0055] Matrix material: Polyvinyl alcohol (PVA): concentration 5%-10% (w / v), which provides mechanical strength and adhesion as the coating skeleton, and its hydroxyl groups can enhance hydrophilicity and reduce protein adsorption.

[0056] Crosslinking agent: Add 0.1%-0.5% glutaraldehyde or boric acid to improve the water resistance and stability of the coating through chemical crosslinking.

[0057] Active ingredient: Heparin: concentration 0.5%-2% (w / v), which inhibits the activity of thrombin through sulfonic acid groups and blocks the coagulation cascade reaction.

[0058] Chlorhexidine: concentration 1%-3% (w / v), a broad-spectrum antibacterial agent, which achieves long-term antibacterial effect by destroying the bacterial cell membrane.

[0059] When coating, for the main body section of the needle body 1: a double-layer dip-coating structure of "inner anticoagulation + outer antibacterial" is adopted. The inner layer contains heparin (1.5%) and PVA (8%), and the outer layer contains chlorhexidine (2%) and PVA (8%). The two layers are crosslinked through PVA to form an integrated structure. For the tip region of the needle body 1: dip-coat a composite solution containing heparin (0.5%-1%) and chlorhexidine (1%-2%) to achieve the synergistic effect of antibacterial and anticoagulation, and reduce the risk of thrombosis and infection after tip puncture.

[0060] And, as Figure 1As shown, it further includes a driving device, a needle fixing piece 6, a pull rod 7, and a magnesium alloy wire 8; at least two needle fixing pieces 6 are arranged around the circumferential side of the needle body 1, and each needle fixing piece 6 can rotate relative to the needle body 1; openings 9 corresponding to the needle fixing pieces 6 one by one are provided on the surface of the needle body 1. One end of the pull rod 7 is located in the main infusion channel 2. One end of the pull rod 7 is connected to one end of the magnesium alloy wire 8, and the other end of the magnesium alloy wire 8 passes through the opening 9 and is connected to the needle fixing piece 6. The magnesium alloy wires 8 correspond to the needle fixing pieces 6 one by one.

[0061] The using process of a multi-channel intramedullary infusion needle is as follows:

[0062] After the needle body 1 penetrates the bone cortex, the driving device drives the pull rod 7, and the pull rod 7 pulls the needle fixing piece 6 through the magnesium alloy wire 8; specifically, the pull rod 7 pushes the magnesium alloy wire 8 forward; the magnesium alloy wire 8 is in a relaxed state; the needle fixing pieces 6 are all still closed; when the first syringe 18 starts perfusion in the main infusion channel 2, the needle fixing pieces 6 are pushed open by the pressure of the liquid medicine flowing in the main infusion channel 2. The opening angle of the needle fixing piece 6 can be selected from 30° to 60°, preferably 45°.

[0063] According to the treatment requirements, a second syringe is connected to the interface 5, and other liquid medicines are co-injected through the auxiliary infusion channel 3.

[0064] In this embodiment, the side of the needle fixing piece 6 for abutting against human tissue is a thickened arc edge 10. The shape and size of the opening 9 are adapted to the needle fixing piece 6; the needle fixing piece 6 can block the opening 9. As shown, the thickness of the needle fixing piece 6 thickens towards the inside of the tube of the main infusion channel 2, and the bottom is designed in an arc shape, so that when the needle fixing piece 6 is unfolded, the thickened part at its bottom just fits the human tissue, such as the heart wall, increasing the contact area with the heart wall. Under the action of the same pressure, the contact area increases, and the pressure borne decreases, thereby improving the stability and safety of the contact between the fixing piece and the heart wall.

[0065] Moreover, the needle fixing piece 6 adopts a polyvinylidene fluoride (PVDF)-based composite material with good biocompatibility and a bismuth telluride (Bi2Te3)-based alloy that has passed biosecurity testing, as flexible piezoelectric and thermoelectric materials respectively. The thickness of the PVDF material is 0.1 - 0.2 mm, and d33 reaches 30 - 40 pC / N, generating electricity by the mechanical energy of the heart beating; the room temperature ZT of the Bi2Te3 alloy is 0.8 - 1.0, generating electricity by the blood temperature difference. The electric energy generated by the two is stored in the micro lithium battery and processed to stably supply 3.3 V electricity to the sampling chip 11 to ensure the operation of the system.

[0066] The second embodiment of the present invention is:

[0067] A multi-channel intramedullary infusion needle. On the basis of the above-mentioned first embodiment, the dipping process of the needle body 1 is as follows:

[0068] First, perform pretreatment; the substrate of the needle body 1 (such as polyurethane, silica gel) is treated by oxygen plasma (power 50W, time 2min) to improve surface polarity and enhance coating adhesion.

[0069] Second, immerse the main infusion channel 2 and the auxiliary infusion channel 3 of the needle body 1 into the heparin-PVA mixed solution (temperature 25 - 30°C, dipping time 30 - 60s), and promote the penetration of the solution by ultrasonic assistance (frequency 40kHz).

[0070] Third: Immerse the needle body 1 into the chlorhexidine-PVA mixed solution (same conditions), and the interval between two coatings is 10 - 15min for preliminary gelation.

[0071] Then, only immerse the tip of the needle body 1 into the heparin / chlorhexidine / PVA composite solution (concentration gradient: heparin 1% + chlorhexidine 1.5% + PVA 8%), and control the immersion depth (5 - 10mm) by a precision fixture.

[0072] Finally: Adopt stepwise temperature rise drying: pre-dry at 50°C for 10min (to remove the solvent), and finally cure at 60°C for 30 - 60min to promote the formation of the PVA cross-linked network, avoid thermal decomposition of the active ingredients, the thickness of the cured coating is 10 - 20μm, and the surface roughness Ra ≤ 0.5μm to ensure that the flexibility of the main infusion channel 2 and the auxiliary infusion channel 3 is not affected.

[0073] After the above treatment, the performance verification of the needle body 1 is as follows:

[0074] Antibacterial property: The antibacterial rate against Staphylococcus aureus (ATCC 6538) and Escherichia coli (ATCC 25922) is ≥99% (24h contact). The chlorhexidine sustained release test shows that the release amount within 7 days maintains the effective antibacterial concentration (MIC90), and the coating has no cracking or peeling.

[0075] Anticoagulant property: The in vitro dynamic coagulation experiment shows that the coagulation time on the coating surface is extended to >60min (the control group is 15min), and the platelet adhesion experiment (SEM observation) shows that the adhesion amount is reduced by more than 80%, and there is no activated morphology (inhibition of pseudopod formation).

[0076] Mechanical stability: After 500 bending cycles (radius 5mm), the coating peeling rate <5%, and the friction coefficient remains ≤0.15.

[0077] Please refer to Figure 2 , Example 3 of the present invention is:

[0078] A multi-channel intramedullary infusion needle, on the basis of the above-mentioned second embodiment, a sampling chip 11 for collecting human physiological data is embedded on the needle fixing piece 6.

[0079] The arc-shaped conforming sampling chip 11 is embedded inside the thickened part of the needle fixing piece 6. The sampling chip 11 is encapsulated with poly(lactic-co-glycolic acid) (PLGA) with good biocompatibility and medical-grade silica gel. The sampling chip 11 has the function of collecting various physiological parameters such as blood flow velocity value, blood pressure value, blood oxygen saturation, and heart rate.

[0080] After the sampling chip 11 collects physiological data, it first performs preliminary processing on the data inside the chip. After the collected data is filtered and amplified inside the chip, the analog signal is converted into a digital signal. Then, through the miniature wireless transmission module integrated in the fixing piece, using low-power Bluetooth technology, the data is sent to the receiving device outside the body. At the same time, to ensure the security and stability of data transmission, the transmitted data is encrypted, and signal enhancement and anti-interference measures are taken to ensure that the data is accurately transmitted to the receiving end.

[0081] During the assembly process of the needle body 1, first install the needle fixing piece 6 integrated with the sampling chip 11 into the opening 9 on the circumferential side wall of the needle body 1 according to the design requirements; when the sampling chip 11 is encapsulated, first clean the chip and process a matching groove in the thickened area of the needle fixing piece 6; mix and heat the poly(lactic-co-glycolic acid) and medical silica gel, coat it in the groove, and then use a vacuum suction nozzle and visual positioning to embed the chip, and then fill the material and thermally cure it; finally, perform secondary curing in a constant temperature and humidity environment, and complete the encapsulation after appearance, bonding strength, and electrical performance detection.

[0082] The application scenarios of the needle fixing piece 6 of a multi-channel intramedullary infusion needle are as follows:

[0083] 1. Clinical surgical assistant monitoring: In cardiac surgery, such as coronary artery bypass grafting and valve replacement surgery, integrate the needle fixing piece 6 into the needle of the cardiac perfusion device. During the perfusion of the heart during the operation, collect physiological parameters such as the patient's blood flow velocity and blood pressure in real time to help doctors timely master the patient's cardiac function status and adjust the surgical strategy.

[0084] 2. Intensive care continuous monitoring: For critically ill heart patients admitted to the intensive care unit (ICU), when cardiac perfusion treatment is required to maintain cardiac function, the needle fixing and physiological data collection are synchronously achieved through this fixing piece. Medical staff can continuously monitor data such as the patient's heart rate and blood oxygen saturation through the external receiving device, and timely discover changes in the condition and take corresponding treatment measures.

[0085] 3. Medical research data collection: In medical research related to cardiovascular diseases, the needle fixing piece 6 is applied to the cardiac perfusion process of experimental animals or clinical research subjects, providing comprehensive and accurate cardiac physiological data for researchers and helping to explore the disease pathogenesis and evaluate the effectiveness of new treatment methods.

[0086] Please refer to Figure 4 , and the fourth embodiment of the present invention is:

[0087] A multi-channel intramedullary infusion control system, including a main controller 12, a display screen 13, a buzzer 14, control buttons 15, a flow sensor 16, a pressure sensor 17, and a multi-channel intramedullary infusion needle of Embodiment 1, 2 or 3;

[0088] The main controller 12 is electrically connected to the display screen 13, the buzzer 14, the control buttons 15, the flow sensor 16, and the pressure sensor 17 respectively; both the flow sensor 16 and the pressure sensor 17 are used to be arranged in the main infusion channel 2, and the main controller 12 is used to communicate with the first syringe 18 and the second syringe.

[0089] The control process of a multi-channel intramedullary infusion control system is as follows:

[0090] During perfusion, the main controller 12 monitors the change of the pressure value in the main infusion channel 2 in real time; when the pressure value exceeds the threshold, it triggers the alarm to sound, and at the same time controls the first syringe 18 to reduce the liquid flow rate in the main infusion channel 2 to reduce the potential harm that may be caused to the patient by the excessive pressure; among them, a motor-driven drainage blade can be arranged at a position where the first syringe 18 is communicated with the main infusion channel 2 of the needle body 1, and the liquid is pumped towards the needle by the drainage blade, and the liquid flow rate is changed by controlling the rotation speed of the drainage blade. At the same time, a hemostatic agent is added to the secondary infusion channel 3 to timely and effectively respond to the possible bleeding situation and ensure the patient's life safety to the greatest extent.

[0091] In addition, the main controller 12 is also communicatively connected to the sampling chip 11, and the display is used to display the human physiological data collected by the sampling chip 11 in real time; the display can also display data such as the change curve of the pressure value.

[0092] In summary, the multi-channel bone marrow cavity infusion needle and control system provided by the present invention adopts a multi-channel injection pipeline composed of a main infusion channel and at least one auxiliary infusion channel in the needle part. While monitoring and controlling the pressure and flow rate of the main infusion channel, the auxiliary infusion channel can be used to achieve multi-drug synergistic injection, meeting diverse infusion needs, enabling drugs to be delivered more precisely to the lesion site, greatly improving the treatment efficiency, reducing the risk of complications, and achieving safe perfusion; supporting the combined use of multiple drugs, capable of quickly and precisely dispensing and infusing drugs according to the specific condition and emergency needs of the patient. Through this multi-drug combination method, the rescue time window is greatly shortened; an antibacterial and anticoagulant composite coating is provided on the surface of the needle body, which can effectively inhibit the attachment and growth of bacteria on the inner wall of the pipeline, greatly reducing the risk of infection caused by bacterial contamination during infusion, providing a more solid guarantee for the treatment safety of patients; at the same time, it can also prevent blood from coagulating in the pipeline, avoiding the influence of blood blockage on drug infusion and ensuring the smoothness of the infusion process. The sampling chip on the needle fixing piece is used to collect human physiological data in real time, such as key indicators like tissue fluid composition, local pH value, ion concentration, etc. Medical staff can quickly judge the trend of the patient's condition change based on these real-time data, timely adjust the treatment plan, and achieve precise and personalized medical treatment. Especially in emergency and intensive care scenarios, it can strive for more favorable treatment opportunities for patients.

[0093] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A multi-channel intramedullary infusion needle, characterized in that, including a needle body; A main infusion channel is provided in the needle body, and at least one auxiliary infusion channel is provided in the main infusion channel; The needle body is provided with an external extension tube connected to the main infusion channel, one end of the auxiliary infusion channel is arranged toward the needle port of the needle body, the other end of the auxiliary infusion channel passes through the external extension tube, and the other end of the auxiliary infusion channel is provided with an interface for adding additional drugs; The main infusion channel and the interface are used for externally connecting a first syringe and a second syringe respectively.

2. The multi-channel intramedullary infusion needle according to claim 1, wherein, The inner wall of the main infusion channel and the inner wall of the auxiliary infusion channel are both provided with an antibacterial and anticoagulant composite coating.

3. The multi-channel intramedullary infusion needle according to claim 1, wherein It also includes a driving device, a needle fixing plate, a pull rod and a magnesium alloy wire; At least two needle fixing plates are arranged around the circumferential side of the needle body, and each of the needle fixing plates can rotate relative to the needle body; The surface of the needle body is provided with an opening corresponding to the needle fixing plate one by one, one end of the pull rod is located in the main infusion channel, one end of the pull rod is connected to one end of the magnesium alloy wire, and the other end of the magnesium alloy wire passes through the opening and is connected to the needle fixing plate, and the magnesium alloy wire corresponds to the needle fixing plate one by one.

4. The multi-channel intramedullary infusion needle according to claim 3, characterized in that, The side of the needle fixing plate used for contacting human tissue is a thickened arc-shaped side.

5. The multi-channel intramedullary infusion needle according to claim 3, wherein, The shape and size of the opening are adapted to the needle fixing sheet; The needle fixing sheet can cover the opening.

6. The multi-channel intramedullary infusion needle according to claim 3, wherein, A sampling chip for collecting human physiological data is embedded on the needle fixing plate.

7. A multi-channel bone marrow cavity infusion control system, characterized in that, It comprises a main controller, a flow sensor, a pressure sensor and a multi-channel intraosseous infusion needle according to any one of claims 1 to 6; The flow sensor and the pressure sensor are both used to be arranged in the main infusion channel, and the main controller is electrically connected to the flow sensor and the pressure sensor respectively; The main controller is used for communicating with the first syringe and the second syringe.

8. The multi-channel bone marrow cavity infusion control system according to claim 7, wherein The main controller is electrically connected to the driving device.

9. The multi-channel bone marrow cavity infusion control system according to claim 7, characterized in that Also includes display screen; The main controller is electrically connected to the display screen.

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