Intravenous anesthesia indwelling needle

Abstract

The utility model discloses an intravenous anesthesia indwelling needle, which belongs to the technical field of medical consumables, and comprises a needle cylinder, the front end of the needle cylinder is fixedly connected with a needle head, according to the intravenous anesthesia indwelling needle, after a needle sleeve is pulled out, the needle head is punctured into a subcutaneous blood vessel, and a fixed wing is unfolded and pasted on the skin; then the mounting base is attached to the back of the hand through waterproof adhesive tape for pasting, the positive pressure connector and the connecting pipe are reversely buckled on a positioning clamping base of the mounting base for positioning and clamping, at the moment, the clamping plates are located on the two sides of the positive pressure connector, and the two clamping plates can be driven by the moving mechanism to move to limit and fix the positive pressure connector; compared with the mode that the positive pressure connector and the connecting pipe are directly attached to the hand back, the mounting base is attached to the hand back of the human body, the mounting base is not prone to moving along with pulling of hand muscles, and the positive pressure connector and the connecting pipe can be limited by fixing the positive pressure connector and the connecting pipe to the mounting base in a limited mode.

Description

Technical Field

[0001] The utility model relates to the technical field of medical consumables, and more specifically, to an intravenous anesthesia indwelling needle. Background Art

[0002] The use of indwelling needles can reduce the pain caused by repeated intravenous punctures in children and their fear of injections, relieve the anxiety of parents, facilitate clinical medication, rescue medication for critically ill patients, reduce the workload of nurses, and reduce the pain of children. Therefore, intravenous indwelling needles are widely used in clinics.

[0003] The current intravenous anesthesia indwelling needle, such as "An Intravenous Anesthesia Indwelling Needle" with the patent number 202223430045.1, includes a needle body fixing tube. The left end of the needle body fixing tube is fixedly connected with a soft needle, the outer surface of the soft needle is inserted and connected with a needle sleeve, the inner surface of the right part of the needle body fixing tube is inserted and connected with a fixing seat, the left end of the fixing seat is fixedly connected with a steel needle, both the front right side and the rear right side of the outer surface of the needle body fixing tube are fixedly connected with fixing wings, the left side of the rear part of the outer surface of the needle body fixing tube is fixedly connected with an extension tube, the outer surface of the extension tube is inserted and connected with a clamping buckle, and the extension tube includes a connecting tube. In the intravenous anesthesia indwelling needle of the utility model, by arranging two fixing wings on the outer surface of the needle body fixing tube, when the indwelling needle penetrates the skin and the steel needle is pulled out, the fixing wings still remain on the needle body fixing tube for fixing the soft needle. Fixing with the two fixing wings can prevent the indwelling needle from slipping during use.

[0004] The existing intravenous anesthesia indwelling needle fixes the needle head on the back of the hand through fixing wings, and at the same time pastes the positive pressure connector and the connecting tube with a heparin cap on the back of the hand with adhesive tape. Although it can play a role in limiting and fixing the indwelling needle, in the actual use process, the positive pressure connector and the connecting tube are directly pasted with adhesive tape, and the human hand is relatively flexible, which easily causes the positive pressure connector and the connecting tube to be pulled, so that the needle head receives a dragging force, which to a certain extent affects the use effect of the indwelling needle. Therefore, it is urgent to improve the technology of the structure of the intravenous anesthesia indwelling needle to improve this device. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] In view of the problems existing in the prior art, the purpose of the present utility model is to provide an intravenous anesthesia indwelling needle, which can realize that when using the intravenous anesthesia indwelling needle, after removing the needle sleeve, the needle tip is inserted into the subcutaneous blood vessel, the fixing wing is unfolded and pasted on the skin, and then the mounting seat is attached to the back of the hand with waterproof adhesive tape for pasting, and the positive pressure connector and the connecting tube are reversely buckled on the positioning card seat of the mounting seat for positioning and clamping. At this time, the clamping plates are located on both sides of the positive pressure connector, and the two clamping plates can be driven to move by the moving mechanism to limit and fix the positive pressure connector. Compared with the method of directly attaching the positive pressure connector and the connecting tube to the back of the hand, the mounting seat fits well with the back of the human hand and is not easily moved by the pulling of the hand muscles. By limiting and fixing the positive pressure connector and the connecting tube on the mounting seat, the limitation of the positive pressure connector and the connecting tube can be realized.

[0007] 2. Technical solution

[0008] To solve the above problems, the present utility model adopts the following technical solutions.

[0009] An intravenous anesthesia indwelling needle includes a syringe barrel, a needle tip is fixedly connected to the front end of the syringe barrel, a needle sleeve is sleeved outside the needle tip, a fixing wing is fixedly connected to the outer end of the syringe barrel, a viscous adhesive tape covers the bottom end of the fixing wing, an extension tube is communicated with the outer end of the syringe barrel, a clamping buckle is sleeved outside the extension tube, a mounting seat is arranged outside the extension tube, the extension tube penetrates through the mounting seat, a positive pressure connector is connected to the end of the extension tube, a connecting tube is communicated with the side end of the positive pressure connector, a heparin cap is threadedly connected to the port of the connecting tube, waterproof adhesive tapes are connected to both sides of the bottom end of the mounting seat, a positioning card seat is connected to the top end of the mounting seat, and two symmetrically arranged clamping plates are arranged on the top of the mounting seat. The two clamping plates are driven to move towards each other by a moving mechanism inside the mounting seat.

[0010] Further, the internal dimension of the positioning card seat is adapted to the external dimensions of the positive pressure connector and the connecting tube, and the positioning card seat is made of rubber material.

[0011] Further, a plurality of silica gel bumps are connected to the inner wall of the positioning card seat, and a frosted layer is provided on the surface of the bumps.

[0012] Further, a slider is fixedly connected to the bottom end of the clamping plate, a chute is opened at one end of the mounting seat corresponding to the slider, a threaded rod is rotatably connected inside the chute, and the threaded rod penetrates through the slider and forms a threaded connection with the slider.

[0013] Further, the cross sections of the slider and the chute are T-shaped, and a polished layer is provided at the contact part between the slider and the chute.

[0014] Further, two sections of threads are engraved on the outer end of the threaded rod, and the thread patterns of the two sections of threads on the outside of the threaded rod are arranged in opposite directions.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) In the present utility model, after removing the needle sleeve, the needle is inserted into the subcutaneous blood vessel, and the fixing wing is unfolded and pasted on the skin. Then, the mounting seat is attached to the back of the hand with waterproof tape for pasting, and the positive pressure connector and the connecting tube are reversely buckled on the positioning clamping seat of the mounting seat for positioning and clamping. At this time, the clamping plates are located on both sides of the positive pressure connector, and the two clamping plates can be driven to move by the moving mechanism to limit and fix the positive pressure connector. Compared with the method of directly attaching the positive pressure connector and the connecting tube to the back of the hand, the mounting seat fits well with the back of the human hand and is not easily displaced by the pulling of the hand muscles. By limiting and fixing the positive pressure connector and the connecting tube on the mounting seat, the limitation of the positive pressure connector and the connecting tube can be achieved.

[0018] (2) In the present utility model, when infusion is required, the threaded rod can be rotated reversely. The thread patterns of the outer end of the threaded rod are arranged in the opposite direction, so that the threaded rod drives the two clamping plates to move in opposite directions at the same time to release the locking of the positive pressure connector. Then, the positive pressure connector and the connecting tube can be broken off from the positioning clamping seat with force. The heparin cap is screwed spirally, and the clamping buckle is loosened, and then the drug can be injected. After the injection is completed, the clamping buckle is directly closed to prevent blood reflux, which is convenient for use. Description of the drawings

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the clamping structure of the positive pressure connector and the connecting tube of the present utility model;

[0021] Figure 3 is a schematic front sectional structural diagram of the mounting seat of the present utility model;

[0022] Figure 4 is the present utility model Figure 1 partial enlarged structural diagram at A in

[0023] Explanation of the reference numerals in the drawings:

[0024] 1. Syringe barrel; 2. Needle; 3. Needle sleeve; 4. Fixing wing; 5. Extension tube; 6. Clamping buckle; 7. Mounting seat; 8. Positive pressure connector; 9. Connecting tube; 10. Heparin cap; 11. Waterproof tape; 12. Positioning clamping seat; 13. Convex block; 14. Clamping plate; 15. Slide block; 16. Slide groove; 17. Threaded rod. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment:

[0027] Please refer to Figures 1-4 , a venous anesthesia indwelling needle, including a syringe barrel 1, a needle head 2 is fixedly connected to the front end of the syringe barrel 1, a needle sleeve 3 is sleeved outside the needle head 2, a fixing wing 4 is fixedly connected to the outer end of the syringe barrel 1, a sticky tape covers the bottom end of the fixing wing 4, an extension tube 5 is communicated with the outer end of the syringe barrel 1, a clamping buckle 6 is sleeved outside the extension tube 5, a mounting seat 7 is arranged outside the extension tube 5, the extension tube 5 penetrates through the mounting seat 7, the end of the extension tube 5 is connected with a positive pressure connector 8, a connecting tube 9 is communicated with the side end of the positive pressure connector 8, a heparin cap 10 is threadedly connected to the port of the connecting tube 9, waterproof tapes 11 are connected to both sides of the bottom end of the mounting seat 7, a positioning card seat 12 is connected to the top end of the mounting seat 7, two symmetrically arranged clamping plates 14 are arranged on the top of the mounting seat 7, and the two clamping plates 14 are driven to move towards each other through a moving mechanism inside the mounting seat 7.

[0028] After removing the needle sleeve 3, the needle head 2 is inserted into the subcutaneous blood vessel, and the fixing wing 4 is unfolded and pasted on the skin. Then, the mounting seat 7 is attached to the back of the hand through the waterproof tape 11 for pasting, and the positive pressure connector 8 and the connecting tube 9 are reversely buckled on the positioning card seat 12 of the mounting seat 7 for positioning and clamping. At this time, the clamping plates 14 are located on both sides of the positive pressure connector 8, and the two clamping plates 14 can be driven to move through the moving mechanism to limit and fix the positive pressure connector 8. Compared with the method of directly attaching the positive pressure connector 8 and the connecting tube 9 to the back of the hand, the mounting seat 7 fits well with the back of the human hand and is not easily displaced with the pulling of the hand muscles. By limiting and fixing the positive pressure connector 8 and the connecting tube 9 on the mounting seat 7, the limitation of the positive pressure connector 8 and the connecting tube 9 can be realized.

[0029] Please refer to Figure 1 and Figure 4 , the internal dimension of the positioning card seat 12 is adapted to the external dimensions of the positive pressure connector 8 and the connecting tube 9. The positioning card seat 12 is made of rubber, and a plurality of silica gel bumps 13 are connected to the inner wall of the positioning card seat 12. The surface of the bumps 13 is provided with a frosted layer. By connecting a plurality of silica gel bumps 13 to the inner wall of the positioning card seat 12, the friction between the positioning card seat 12 and the positive pressure connector 8 and the connecting tube 9 is increased, and the positive pressure connector 8 and the connecting tube 9 are prevented from being randomly displaced from the positioning card seat 12.

[0030] Please refer to Figures 2-3, a slider 15 is fixedly connected to the bottom end of the splint 14. A chute 16 is provided at one end of the mounting seat 7 corresponding to the slider 15. A threaded rod 17 is rotatably connected inside the chute 16. The threaded rod 17 penetrates through the slider 15 and forms a threaded connection with the slider 15.

[0031] Please refer to Figure 3 , the cross-sections of the slider 15 and the chute 16 are T-shaped. A polishing layer is provided at the contact portion between the slider 15 and the chute 16. Two sections of threads are engraved on the outer end of the threaded rod 17. The thread patterns of the two sections of threads on the outside of the threaded rod 17 are arranged in opposite directions. By rotating the threaded rod 17, by setting the thread patterns of the two sections of threads on the outside of the threaded rod 17 to be opposite, when the threaded rod 17 drives the slider 15 to move through the threaded connection formed with the slider 15, the two sliders 15 can be driven to move in the same or opposite directions at the same time, so as to realize the clamping and limiting or unlocking of the positive pressure joint 8.

[0032] In the present utility model, when a person skilled in the relevant art uses the device, after removing the needle sleeve 3, the needle 2 is inserted into the subcutaneous blood vessel. The positive pressure valve in the positive pressure joint 8 closes, and the fixing wing 4 is unfolded and pasted on the skin. Then, the mounting seat 7 is attached to the back of the hand with waterproof tape 11 for pasting, and the positive pressure joint 8 and the connecting tube 9 are reversely buckled on the positioning card seat 12 of the mounting seat 7 for positioning and clamping. At this time, the splints 14 are located on both sides of the positive pressure joint 8. The moving mechanism can drive the two splints 14 to move to limit and fix the positive pressure joint 8. Compared with the method of directly attaching the positive pressure joint 8 and the connecting tube 9 to the back of the hand, the mounting seat 7 fits well with the back of the human hand and is not easily displaced with the pulling of the hand muscles;

[0033] When infusion is required, the threaded rod 17 can be rotated reversely. The thread patterns of the outer end of the threaded rod 17 are arranged in opposite directions, so that the threaded rod 17 drives the two splints 14 to move in opposite directions at the same time, unlocking the positive pressure joint 8. Then, the positive pressure joint 8 and the connecting tube 9 can be forcefully removed from the positioning card seat 12. The heparin cap 10 is screwed spirally, and the clip 6 is loosened, and then the drug can be injected. After the injection is completed, the clip 6 is directly closed to prevent blood backflow, which is convenient to use.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An intravenous anesthesia indwelling needle, comprising a syringe (1), characterized in that: The front end of the syringe (1) is fixedly connected to a needle (2), the outer sleeve of the needle (2) is provided with a needle sleeve (3), the outer end of the syringe (1) is fixedly connected to a fixing wing (4), the bottom end of the fixing wing (4) is covered with an adhesive tape, the outer end of the syringe (1) is connected to an extension tube (5), the outer portion of the extension tube (5) is sleeved with a clip buckle (6), the outer portion of the extension tube (5) is provided with a mounting seat (7), the extension tube (5) passes through the mounting seat (7), the extension tube (5) The end of the mounting seat (7) is connected to a positive pressure joint (8), the side end of the positive pressure joint (8) is connected to a connecting pipe (9), the port of the connecting pipe (9) is threadedly connected to a heparin cap (10), the bottom sides of the mounting seat (7) are connected to waterproof adhesive tapes (11), the top of the mounting seat (7) is connected to a positioning card seat (12), and the top of the mounting seat (7) is provided with two symmetrical clamping plates (14), and the two clamping plates (14) are driven to move towards each other by a moving mechanism in the mounting seat (7).

2. The intravenous anesthesia indwelling needle according to claim 1, characterized in that: The internal dimensions of the positioning card seat (12) are compatible with the external dimensions of the positive pressure joint (8) and the connecting pipe (9), and the positioning card seat (12) is made of rubber.

3. The intravenous anesthesia indwelling needle according to claim 1, characterized in that: A plurality of silicone protrusions (13) are connected to the inner wall of the positioning card seat (12), and a frosted layer is provided on the surface of the protrusions (13).

4. The intravenous anesthesia indwelling needle according to claim 1, characterized in that: The moving mechanism comprises a slider (15), a slide groove (16) and a threaded rod (17); the slider (15) is fixedly connected to the bottom end of the clamping plate (14); the slide groove (16) is provided at one end of the mounting seat (7) corresponding to the slider (15); the slide groove (16) is rotatably connected to the threaded rod (17) inside; the threaded rod (17) passes through the slider (15) and is threadedly connected to the slider (15).

5. The intravenous anesthesia indwelling needle according to claim 4, characterized in that: The cross-sections of the slider (15) and the slide groove (16) are T-shaped, and a polishing layer is provided at the contact point between the slider (15) and the slide groove (16).

6. The intravenous anesthesia indwelling needle according to claim 4, characterized in that: The outer end of the threaded rod (17) is engraved with two sections of threads, and the lines of the two sections of threads on the outside of the threaded rod (17) are arranged in opposite directions.

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