Anti-falling remaining needle
By adding a silicone anti-slip pad and a needle handle to the indwelling needle to increase stability, and by using a positive pressure head and a flow stop clamp to prevent blood backflow, the problems of easy dislodgement and embolism of the indwelling needle are solved, improving the safety and comfort of use.
Patent Information
- Application Number
- CN202422804422.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing indwelling needles are prone to dislodgement during use and can easily cause blood backflow leading to embolism, lacking effective protective measures.
An indwelling needle designed to prevent dislodgement uses a silicone anti-slip plate and a needle handle to increase stability, and a positive pressure head and a flow stop clamp to prevent blood backflow, combined with a heparin cap to prevent embolism.
It effectively prevents indwelling needle dislodgement, reduces patient discomfort, improves puncture success rate, and prevents blood backflow by pushing back residual medication, thus reducing the risk of embolism.
Smart Images
Figure CN223586335U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical devices, and specifically relates to a needle for indwelling that is prevented from falling off. BACKGROUND
[0002] In traditional intravenous infusion treatment, intravenous puncture operation is implemented each time infusion is performed. For chronic patients, critical patients and other people who need long-term infusion, frequent intravenous puncture not only causes great pain to the patients, but also can cause the blood vessels at the puncture site to be damaged. In clinical nursing work, frequent intravenous puncture operation consumes much time and energy of medical staff. In a relatively busy medical environment such as an emergency room or an intensive care unit, it is particularly important to improve nursing efficiency. From the perspective of the patients, reducing pain and improving comfort are important pursuit goals of medical services. Patients who receive infusion treatment for a long time, such as cancer chemotherapy, often need to undergo infusion for multiple courses. The use of the needle for indwelling can avoid pain and fear caused by multiple punctures, which is helpful to improve the compliance of the patients to the treatment.
[0003] The prior art also has the following disadvantages:
[0004] 1. The existing needle for indwelling lacks the function of preventing falling off in the use process. Since the needle for indwelling often needs to be indwelled in the blood vessel for a long time, the needle for indwelling can fall off when the patient moves or sleeps. If the needle for indwelling falls off, the patient needs to be punctured again, which increases the pain of the patient and the work burden of the medical staff.
[0005] 2. The existing needle for indwelling also lacks the function of preventing blood reflux in the use process. The blood reflux phenomenon is very common when the needle for indwelling is indwelled in the blood vessel for a long time. The blood that flows into the catheter and the hose coagulates, which can cause embolism. Even if heparin is injected, embolism cannot be completely avoided. Embolism can cause the needle for indwelling to be unusable, and the patient needs to be punctured again. UTILITY MODEL CONTENT
[0006] In order to overcome the above-mentioned defects, the utility model provides a needle for indwelling that is prevented from falling off, which solves the problems of easy falling off and easy embolism.
[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a needle for indwelling that is prevented from falling off, comprising a catheter seat, a catheter in communication with the lower part of the catheter seat, a silica gel anti-skid sheet fixedly connected to the two sides of the catheter seat, a hose in communication with one side of the catheter seat, and a positive pressure head in communication with one side of the hose.
[0008] As a further scheme of the utility model, a puncture needle is slidably connected to the inside of the catheter seat, and the catheter is sleeved on the outside of the puncture needle.
[0009] As a further scheme of the utility model: the top of the puncture needle is fixedly connected with a puncture needle seat, and the one side of the puncture needle seat is fixedly connected with a needle holding handle.
[0010] As a further scheme of the utility model: the outside of the hose is movably connected with a flow stopping clamp.
[0011] As a further scheme of the utility model: the upper part of the hose is communicatively provided with a heparin cap, and the one side of the hose is communicatively provided with a connector protection cap.
[0012] As a further scheme of the utility model: the inside of the positive pressure head is slidably connected with a piston plate, the one side of the piston plate is rotatably connected with a threaded rod, the one end of the threaded rod is fixedly connected with a knob, and the side, close to the knob, of the positive pressure head is provided with a threaded hole, matched with the knob.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1. By setting silica gel antiskid sheet on both sides of the catheter seat, cooperating with the antiskid lines on the needle holding handle, the medical staff can hold the needle more stably, and the success rate of puncture is increased, after the puncture is completed, the silica gel antiskid sheet is pasted on the skin of the patient, and then the medical adhesive tape is used for fixing, so that the remaining needle is more stable and not easy to fall off, and meanwhile, the contact area of the medical adhesive tape and the skin is reduced, and the adhesive tape is not easy to leave adhesive on the skin.
[0015] 2. By setting the positive pressure head and cooperating with the flow stopping clamp, the residual liquid in the hose can be used to push the backflow blood back to the blood vessel, and the embolism caused by the backflow blood is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a structural schematic view of the utility model;
[0017] Fig. 2 It is a structural schematic view of the positive pressure head of the utility model;
[0018] Fig. 3 It is a structural schematic view of the needle head of the utility model.
[0019] In the drawing: 1, catheter seat; 2, catheter; 3, puncture needle; 4, silica gel antiskid sheet; 5, puncture needle seat; 6, needle holding handle; 7, hose; 8, flow stopping clamp; 9, heparin cap; 10, connector protection cap; 11, positive pressure head; 12, threaded rod; 13, knob; 14, piston plate. DETAILED DESCRIPTION
[0020] The technical scheme of the utility model will be further explained in detail in combination with the specific implementation.
[0021] For example, Figs. 1-3The utility model provides a technical scheme:
[0022] A kind of needle for indwelling of anti-shedding, including catheter seat 1, catheter seat 1 lower side is provided with catheter 2, the both sides of catheter seat 1 are fixedly connected with silica gel antiskid piece 4 respectively, catheter seat 1 one side is provided with hose 7, hose 7 one side is provided with positive pressure head 11, catheter seat 1 inside is slidably connected with puncture needle 3, catheter 2 is set on the outside of puncture needle 3, the top of puncture needle 3 is fixedly connected with puncture needle seat 5, the one side of puncture needle seat 5 is fixedly connected with needle holding handle 6;
[0023] Specifically, when intravenous injection is carried out on a patient, a medical staff places the thumb and the index finger on the two silica gel antiskid pieces 4 respectively, and then pinches towards the needle holding handle 6, so that the two silica gel antiskid pieces 4 wrap the needle holding handle 6, the surface of the silica gel antiskid piece 4 has silica gel antiskid lines, and the surface of the needle holding handle 6 also has antiskid lines, so that the medical staff holds the needle more stably and is not easy to slip, and at the same time, the relative positions of the catheter 2 and the puncture needle 3 are fixed, and the puncture effect is better, after puncture is completed, the liquid medicine flows into the catheter seat 1 through the hose 7 and then flows into the vein through the catheter seat 1, at this time, the medical staff releases the silica gel antiskid pieces 4, pinches the needle holding handle 6 again, and pulls out the puncture needle 3 and the puncture needle seat 5 in a direction away from the catheter 2, and then sticks the two silica gel antiskid pieces 4 on the skin of the patient, and then fixes them by using a medical adhesive tape;
[0024] The outside of the hose 7 is movably connected with a flow stop clamp 8, the upper side of the hose 7 is provided with a heparin cap 9, one side of the hose 7 is provided with a connector protection cap 10, the inside of the positive pressure head 11 is slidably connected with a piston plate 14, one side of the piston plate 14 is rotatably connected with a threaded rod 12, one end of the threaded rod 12 is fixedly connected with a knob 13, and the side, close to the knob 13, of the positive pressure head 11 is provided with a threaded hole matched with the knob 13;
[0025] Specifically, after infusion is completed, the connector protection cap 10 is sleeved on the connection, a small dose of heparin can be injected into the hose 7 from the heparin cap 9, so as to prevent blood from coagulating and causing embolism, in order to prevent blood from flowing back into the hose 7, the upper end of the hose 7 is clamped by the flow stop clamp 8, and then the knob 13 is rotated gently, the knob 13 drives the piston plate 14 to move downward through the threaded rod 12, and pushes the residual liquid medicine in the hose 7 to push the blood back into the blood vessel.
[0026] The working principle of the utility model is as follows:
[0027] When the patient is given intravenous injection, the medical staff places the thumb and index finger on the two pieces of silica gel anti-skid sheet 4, and then pinches the needle holder 6 to make the two pieces of silica gel anti-skid sheet 4 wrap the needle holder 6. The surface of the silica gel anti-skid sheet 4 has silica gel anti-skid lines, and the surface of the needle holder 6 also has anti-skid lines, so that the medical staff holds the needle more stably and is not easy to slip, and at the same time, the relative position of the catheter 2 and the puncture needle 3 is fixed, and the puncture effect is better. After puncture is completed, the liquid medicine flows into the catheter seat 1 through the hose 7 and then flows into the vein through the catheter seat 1. At this time, the medical staff releases the silica gel anti-skid sheet 4, pinches the needle holder 6 again, and pulls out the puncture needle 3 and the puncture needle seat 5 in the direction away from the catheter 2. Then the two pieces of silica gel anti-skid sheet 4 are attached to the patient's skin. Because the silica gel anti-skid sheet 4 is provided with anti-skid lines, the indwelling needle is not easy to slide, and the possibility of falling off is reduced. At the same time, the material of silica gel also reduces the pressure on the skin and reduces discomfort. Then use medical tape to fix it. When the infusion is completed, the joint protection cap 10 is sleeved on the connection, a small dose of heparin can be injected from the heparin cap 9 into the hose 7 to prevent blood coagulation and cause embolism. In order to prevent blood from flowing back into the hose 7, the upper end of the hose 7 is clamped by the stopper clamp 8, and then the knob 13 is gently rotated. The knob 13 drives the piston plate 14 to move downward through the threaded rod 12, pushes the residual liquid medicine in the hose 7, and pushes the blood back into the blood vessel.
[0028] The above describes the preferred embodiments of the present patent in detail, but the present patent is not limited to the above embodiments. Within the knowledge range of ordinary skilled persons in the art, various changes can be made without departing from the purpose of the present patent.
Claims
1. A needle for a catheter, comprising a catheter hub (1), characterized in that: The lower part of the catheter seat (1) is provided with a catheter (2), the two sides of the catheter seat (1) are respectively fixedly connected with silica gel anti-skid pieces (4), one side of the catheter seat (1) is provided with a hose (7), and one side of the hose (7) is provided with a positive pressure head (11).
2. The anti-extrication indwelling needle according to claim 1, characterized in that: The inside of the catheter seat (1) is slidably connected with a puncture needle (3), and the catheter (2) is sleeved on the outside of the puncture needle (3).
3. The anti-extrication indwelling needle according to claim 2, characterized in that: The top of the puncture needle (3) is fixedly connected with a puncture needle seat (5), and one side of the puncture needle seat (5) is fixedly connected with a needle holding handle (6).
4. The anti-extrication indwelling needle according to claim 3, characterized in that: The outside of the hose (7) is movably connected with a flow stopping clamp (8).
5. The anti-dislodgement indwelling needle of claim 4, wherein: The upper part of the hose (7) is provided with a heparin cap (9), and one side of the hose (7) is provided with a connector protection cap (10).
6. The anti-dislodgement indwelling needle of claim 5, wherein: The inside of the positive pressure head (11) is slidably connected with a piston plate (14), one side of the piston plate (14) is rotatably connected with a threaded rod (12), one end of the threaded rod (12) is fixedly connected with a knob (13), and the positive pressure head (11) is provided with a threaded hole matched with the knob (13) on the side close to the knob (13).