Novel remaining needle

Abstract

The utility model discloses a novel indwelling needle which comprises an infusion inner tube, an infusion sleeve and a buffering and limiting structure, the infusion inner tube is movably inserted into the inner side of the infusion sleeve, and the buffering and limiting structure is installed between the infusion inner tube and the infusion sleeve. The utility model relates to the technical field of medical instruments, in particular to a bionic structure composite flexible material which is inspired and designed by a cobweb structure, has excellent buffering performance and can dissipate as high as 70% of dynamic impact energy in the air. The impact force is dispersed and absorbed in multiple directions due to the interaction of the complex weaving mode and the fibers, and the single-direction impact pressure on the wrist of a user is effectively reduced; the sleeve wrist guard provides preliminary buffering, so that the wrist of a user is protected from discomfort in the infusion process; the plastic pipe on the inner side of the cobweb rubber ring is used for secondary buffering, and vibration and impact in the infusion process are further reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a novel indwelling needle. Background Technology

[0002] With the continuous advancement of intravenous therapy concepts, the application of indwelling needles in clinical practice has become increasingly widespread. Using indwelling needles not only significantly reduces the physical and psychological pain and fear of injections caused by frequent intravenous punctures, but also effectively alleviates patient anxiety, greatly facilitating clinical medication use. It plays a crucial role, especially in the emergency treatment of critically ill patients, while also reducing the workload of medical staff and minimizing patient pain. Although indwelling needle technology has become increasingly mature, a common problem remains to be solved: the puncture site is easily eroded by moisture when patients bathe or wash themselves, increasing the risk of infection.

[0003] Currently, the common clinical practice is to simply wrap the indwelling needle with plastic wrap; however, this method does not provide sufficient protection. Patients inevitably bump into the indwelling needle area during bathing, which can not only cause the needle to shift, affecting subsequent use, but may also force the patient to undergo painful re-puncture. This not only adds unnecessary trouble but also affects the patient's comfort and quality of life, preventing them from enjoying daily activities such as bathing without worry.

[0004] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model is implemented through the following technical solution:

[0006] A novel indwelling needle includes: an infusion inner tube, an infusion cannula, and a buffer limiting structure, wherein the infusion inner tube is movably inserted into the inner side of the infusion cannula, and the buffer limiting structure is installed between the infusion inner tube and the infusion cannula;

[0007] The buffer limiting structure includes: several spider web rubber rings, a wristband, several plastic tubes, saline solution, several heat dissipation strips, a positioning sleeve, and auxiliary components;

[0008] Several spider web-shaped rubber rings are evenly installed on the outside of the infusion inner tube, and several spider web-shaped rubber rings are evenly installed on the inside of the infusion cannula. The wristband is fitted onto the infusion cannula through the positioning sleeve. Several plastic tubes are evenly inserted into the inside of several spider web-shaped rubber rings. The saline solution is placed inside the inside of several plastic tubes. Several heat dissipation strips are evenly inserted into several plastic tubes. The auxiliary components are installed on the infusion inner tube. The infusion cannula has an L-shaped rotating port.

[0009] Preferably, the auxiliary components include: a three-way valve, a flow stop clamp, an indwelling needle tube, a puncture needle hub, and a puncture needle;

[0010] The puncture needle hub is connected to the infusion inner tube and is connected to the inner side of the spider web rubber ring. The three-way tube is installed on the infusion inner tube. The indwelling needle tube is connected to the puncture needle hub. The puncture needle is movably inserted into the puncture needle hub. The flow stop clamp is fitted on the infusion inner tube. The three-way tube is installed on the infusion inner tube.

[0011] Preferably, the infusion cannula is provided with a pair of circular rubber rings.

[0012] Preferably, the wristband set is equipped with a universal adhesive patch.

[0013] Preferably, the infusion cannula is provided with a flexible metal mesh.

[0014] Preferably, the inner side of the infusion tube is provided with an anticoagulant coating.

[0015] Beneficial effects

[0016] This utility model provides a novel indwelling needle, which has the following beneficial effects:

[0017] This novel indwelling needle, inspired by the structure of a spider web, is made of a biomimetic composite flexible material with excellent cushioning performance, capable of dissipating up to 70% of dynamic impact energy in the air. The complex weaving method and the interaction between fibers disperse and absorb impact forces in multiple directions, effectively reducing unidirectional impact pressure on the user's wrist. A wrist brace provides initial cushioning, protecting the user's wrist from discomfort during infusion. A plastic tube inside the spider web-like rubber ring provides secondary cushioning, further reducing vibration and impact during infusion. A highly efficient heat dissipation system, utilizing saline solution and a heat sink, diverts heat from the infusion tubing to the saline solution inside the plastic tube. The saline solution acts as a heat transfer medium, dissipating heat... The fluid is drained through another heat dissipation strip to the infusion cannula, achieving rapid heat dissipation and maintaining comfort and safety during the infusion process. The three-way valve design allows for convenient fluid replenishment and drainage, improving the flexibility and efficiency of the infusion. The flow stop clamp can easily compress and seal the inner diameter of the tubing, controlling the infusion flow rate and stopping it, ensuring precise control of the infusion process. The indwelling needle design reduces the pain of repeated punctures for patients, improving patient comfort. The puncture needle seat limits the indwelling needle, ensuring the stability and safety of the infusion process. This design combines advanced technologies in bionics, materials science, and medicine, not only improving the comfort and safety of infusion but also reducing the risk of complications during the infusion process through intelligent heat dissipation and efficient buffering mechanisms. Attached Figure Description

[0018] Figure 1 This is a front sectional view of a novel indwelling needle according to the present invention.

[0019] Figure 2 This is a bottom view of the novel indwelling needle described in this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of a novel indwelling needle according to the present invention.

[0021] Figure 4 for Figure 3 A magnified view of the "A" in the middle.

[0022] In the diagram: 1. Infusion tubing; 2. Infusion cannula; 3. Spider web rubber ring; 4. Plastic tubing; 5. Normal saline; 6. Heat dissipation strip; 7. Positioning sleeve; 8. T-connector; 9. Drain clamp; 10. Indwelling needle tube; 11. Puncture needle hub; 12. Puncture needle. Detailed Implementation

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example

[0025] like Figure 1-4 As shown, the infusion inner tube 1 is movably inserted into the inner side of the infusion sleeve 2, and the buffer limiting structure is installed between the infusion inner tube 1 and the infusion sleeve 2.

[0026] Specifically, the buffer limiting structure includes: several spider web rubber rings 3, a wristband, several plastic tubes 4, saline solution 5, several heat dissipation strips 6, a positioning sleeve 7, and auxiliary components;

[0027] Specifically, several spider web rubber rings 3 are evenly installed on the outside of the infusion inner tube 1, and several spider web rubber rings 3 are evenly installed on the inside of the infusion sleeve 2. The wristband is fitted onto the infusion sleeve 2 through the positioning sleeve 7. Several plastic tubes 4 are evenly inserted into the inside of several spider web rubber rings 3. The saline solution 5 is placed inside the inside of several plastic tubes 4. Several heat dissipation strips 6 are evenly inserted into several plastic tubes 4. The auxiliary components are installed on the infusion inner tube 1. The infusion sleeve 2 has an L-shaped rotating port.

[0028] It should be noted that, as described above, the infusion inner tube 1 is actively connected to the infusion cannula 2 via several spider web-like rubber rings 3 on the inner side. Inspired by the spider web structure, researchers have developed a biomimetic composite flexible material with high buffering performance. Due to the highly efficient buffering performance of the spider web-like biomimetic material, the spider web structure can dissipate up to 70% of the dynamic impact energy in the air. This is due to its complex weaving method and the interaction between fibers. The multi-layered, multi-directional fiber structure of the spider web allows the impact force to be dispersed and absorbed in multiple directions, thereby effectively reducing the impact pressure in a single direction. By using a wristband, the user's wrist is cushioned, and secondary cushioning is provided by several plastic tubes 4 on the inner side of the spider web-like rubber rings 3. Simultaneously, the saline solution 5 and heat dissipation strips 6 dissipate heat from the infusion cannula 2 and the infusion inner tube 1. Several heat dissipation strips 6 guide the heat from the infusion inner tube 1 to the saline solution 5 inside the plastic tubes 4, and the saline solution 5 then guides the heat to the infusion cannula 2 through another heat dissipation strip 6, thereby driving rapid heat dissipation.

[0029] like Figure 1-4 As shown, the auxiliary components include: a three-way tube 8, a flow stop clamp 9, an indwelling needle tube 10, a puncture needle seat 11, and a puncture needle 12;

[0030] Specifically, the puncture needle 12 seat 11 is connected to the infusion inner tube 1, and the puncture needle 12 seat 11 is connected to the inner side of the spider web rubber ring 3. The three-way tube 8 is installed on the infusion inner tube 1. The indwelling needle tube 10 is connected to the puncture needle 12 seat 11. The puncture needle 12 is movably inserted into the puncture needle 12 seat 11. The flow stop clamp 9 is fitted onto the infusion inner tube 1. The three-way tube 8 is installed on the infusion inner tube 1.

[0031] It should be noted that, in the above process, the fluid is drained through the three-way tube 8, and the inner diameter of the tube is squeezed and sealed by the flow stop clamp 9. The indwelling needle tube 10 is placed at the patient's wrist, the indwelling needle tube 10 is inserted and drained through the puncture needle 12, and the indwelling needle tube 10 is limited by the puncture needle 12 seat 11.

[0032] As a preferred option, the infusion cannula 2 is further provided with a pair of circular rubber rings. The circular rubber rings on the infusion cannula protect against friction during the movement of the inner infusion tube and prevent wear.

[0033] As a preferred option, the wristband set is further equipped with a universal adhesive strip to adjust the tightness of the wristband set.

[0034] As a preferred embodiment, the infusion sleeve 2 is further provided with a flexible metal mesh, which is used for flexible shaping by providing a flexible metal mesh on the inner side of the infusion sleeve.

[0035] As a preferred option, the inner side of the infusion inner tube 1 is provided with an anticoagulant coating to prevent the liquid from flowing into the gap between the infusion inner tube and the infusion sleeve and causing solidification and blockage after the arm comes into contact with the liquid in daily life.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel indwelling needle, comprising: An infusion inner tube, an infusion sleeve, and a buffer limiting structure are characterized in that the infusion inner tube is movably inserted into the inner side of the infusion sleeve, and the buffer limiting structure is installed between the infusion inner tube and the infusion sleeve. The buffer limiting structure includes: several spider web rubber rings, a wristband, several plastic tubes, saline solution, several heat dissipation strips, a positioning sleeve, and auxiliary components; Several spider web-shaped rubber rings are evenly installed on the outside of the infusion inner tube, and several spider web-shaped rubber rings are evenly installed on the inside of the infusion cannula. The wristband is fitted onto the infusion cannula through the positioning sleeve. Several plastic tubes are evenly inserted into the inside of several spider web-shaped rubber rings. The saline solution is placed inside the inside of several plastic tubes. Several heat dissipation strips are evenly inserted into several plastic tubes. The auxiliary components are installed on the infusion inner tube. The infusion cannula has an L-shaped rotating port.

2. A novel indwelling needle according to claim 1, characterized in that, The auxiliary components include: a three-way valve, a flow stop clamp, an indwelling needle tube, a puncture needle hub, and a puncture needle; The puncture needle hub is connected to the infusion inner tube and is connected to the inner side of the spider web rubber ring. The three-way tube is installed on the infusion inner tube. The indwelling needle tube is connected to the puncture needle hub. The puncture needle is movably inserted into the puncture needle hub. The flow stop clamp is fitted on the infusion inner tube. The three-way tube is installed on the infusion inner tube.

3. A novel indwelling needle according to claim 2, wherein The infusion cannula is equipped with a pair of circular rubber rings.

4. A novel indwelling needle according to claim 3, wherein The wristbands in the set are equipped with a universal adhesive patch.

5. A novel indwelling needle according to claim 4, wherein The infusion cannula is equipped with a flexible metal mesh.

6. A novel indwelling needle according to claim 5, wherein The inner side of the infusion tube is provided with an anticoagulant coating.

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