Skin protection type venous indwelling needle

Abstract

The utility model relates to the field of medical treatment, in particular to a skin protection type venous indwelling needle which comprises a heparin cap, an infusion tube, a transparent tee joint, a catheter, a puncture needle and a needle wing, one end of the infusion tube is connected with the heparin cap, the other end of the infusion tube is connected to the transparent tee joint, and the transparent tee joint is connected with the catheter and provided with the puncture needle. According to the skin protection type venous indwelling needle, the fixing band is arranged on the infusion tube, the whole indwelling needle is stably fixed to the wrist or the forearm of a patient, the situation that the whole indwelling needle directly presses the skin of the patient is avoided, in addition, the transparent tee joint and the heparin cap are wrapped with the transparent viscous dressing band and then fixed, and therefore the skin protection type venous indwelling needle is convenient to use. The pressure of a hard part on the skin is reduced, so that the skin of a puncture part of a patient is effectively protected from mechanical injury, the discomfort of the patient can be remarkably relieved, and the safety and the comfort degree in the treatment process can be improved.

Description

Technical Field

[0001] The utility model relates to the medical field, in particular to a skin-protective intravenous indwelling needle. Background Art

[0002] Intravenous catheters are a common clinical medical device, widely used in a variety of infusion treatments. Their main advantage is that they can reduce the pain caused by repeated intravenous punctures and the fear of injections in children. It also helps to reduce the anxiety of parents. For clinical medication, especially emergency medication for acute and critically ill patients, intravenous catheters provide great convenience and can significantly reduce the workload of nurses.

[0003] However, in actual application, intravenous catheters also face some challenges. In particular, after the existing intravenous catheter is punctured, the catheter is directly fixed to the patient's skin with medical tape. Although this fixation method is simple and effective, for patients with sensitive skin, especially infants and young children with delicate skin, the hard parts of the transparent tee and heparin cap made of hard plastic on the catheter are easy to compress the skin, making the skin at the compressed area prone to discomfort, erythema, indentation and other problems, and in severe cases may even cause skin damage.

[0004] In view of the above problems, a skin-protective intravenous catheter is proposed. Utility Model Content

[0005] In order to overcome the problem that infants and young children currently use medical tape to directly fix the intravenous catheter after puncture, which easily compresses the skin and causes skin discomfort, erythema, indentation and other problems, and even seriously leads to skin damage, the utility model provides a skin-protective intravenous catheter.

[0006] To solve the above problems, the present invention adopts the following technical solutions: a skin-protective intravenous catheter, comprising a heparin cap, an infusion tube, a transparent tee, a catheter, a puncture needle and a needle wing, one end of the infusion tube is connected to the heparin cap, and the other end is connected to the transparent tee, the transparent tee is connected to the catheter and is equipped with a puncture needle, and an integrated needle wing is provided on the outside of the puncture needle, and also comprises a sliding seat, a fixing belt and a transparent adhesive dressing belt, the sliding seat is slidably arranged on the infusion tube, a fixing belt is provided on the side of the sliding seat facing the skin, the two ends of the fixing belt are respectively provided with a hook surface and a corresponding hair surface, which can be bonded to each other, and a transparent adhesive dressing belt is wrapped around the sliding seat.

[0007] Furthermore, a protective cover is included, and a protective cover is provided at the interface of the heparin cap.

[0008] Furthermore, a needle cover is included, and the puncture needle is provided with a needle cover.

[0009] Furthermore, it also includes a knob, a threaded rod and a clamp. A clamp is provided on one end of the infusion tube close to the heparin cap. The clamp can clamp the infusion tube. A threaded hole is provided in the middle of the clamp, and a threaded rod is provided in the threaded hole. A knob is provided at one end of the threaded rod.

[0010] Furthermore, a circle of flow rate gear markings is engraved on the knob.

[0011] Furthermore, an anti-slip pad is included, and the outer surface of the knob is provided with an anti-slip pad.

[0012] Furthermore, it also includes a heater, a heating tube and a protective shell. The heater is installed on the heparin cap, and the heating tube is connected to the heater. The infusion tube at the lower end of the heparin cap is covered with a protective shell, and the heating tube is arranged in a serpentine shape inside the protective shell.

[0013] Compared with the existing technology, the utility model has the following technical effects: 1. The skin-protective intravenous catheter, by arranging a fixing belt on the infusion tube, stably fixes the entire catheter on the patient's wrist or forearm, thereby avoiding the entire catheter directly pressing on the patient's skin. In addition, by using a transparent adhesive dressing tape to wrap the outside of the transparent tee and the heparin cap and then fix them, the pressure of hard components on the skin is reduced, thereby effectively protecting the skin of the patient's puncture site from mechanical damage. This method can not only significantly reduce the patient's discomfort, but also improve the safety and comfort during the treatment process.

[0014] 2. The skin-protective intravenous catheter is equipped with a flow rate adjustment device consisting of a knob, a threaded rod, and a clamp. By rotating the knob forward or backward, the threaded rod can be moved forward or backward, thereby driving the clamp to loosen or clamp the infusion tube, thereby conveniently adjusting the flow rate of the catheter. This design allows medical staff to flexibly adjust the infusion speed according to the patient's actual situation, increasing the flexibility and controllability of treatment.

[0015] 3. A personal heating device is integrated through the heater, heating tube and protective shell to heat the liquid medicine flowing through the infusion tube. This helps to promote the absorption of the liquid medicine, reduce the cold stimulation of the liquid medicine on the blood vessels, and improve the patient's treatment experience. This function is especially suitable for those temperature-sensitive drugs or those that require infusion treatment in a cold environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 The figure is a schematic diagram of the three-dimensional structure of the heparin cap, protective cover and infusion tube of the utility model.

[0018] Figure 3 This is a three-dimensional cross-sectional view of the heater, heating tube and protective shell of the utility model.

[0019] Figure 4 This is a three-dimensional cross-sectional view of the knob, threaded rod and clamping barrel of the utility model.

[0020] Figure numbers: 1, heparin cap, 2, protective cover, 3, infusion tube, 4, transparent tee, 401, catheter, 5, puncture needle, 6, needle wing, 7, sliding seat, 8, fixing belt, 9, transparent adhesive dressing belt, 10, needle cover, 11, knob, 12, threaded rod, 13, clamping barrel, 14, anti-slip pad, 15, heater, 16, heating tube, 17, protective shell. DETAILED DESCRIPTION

[0021] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the present invention are shown. However, the present invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and will fully convey the scope of the invention to those skilled in the art.

[0022] Example 1: Please refer to Figure 1-Figure 3, a skin-protective intravenous catheter, including a heparin cap 1, a protective cover 2, an infusion tube 3, a transparent tee 4, a catheter 401, a puncture needle 5, a needle wing 6 and a needle cover 10. One end of the infusion tube 3 is connected to the heparin cap 1, and the other end is connected to the transparent tee 4. The transparent tee 4 is connected to the catheter 401 and is equipped with a puncture needle 5, and an integrated needle wing 6 is provided on the outside of the puncture needle 5 to facilitate medical staff to hold and perform accurate puncture. In addition, a protective cover 2 is provided at the interface of the heparin cap 1. The main function of the protective cover 2 is to close the interface of the heparin cap 1 when not in use to prevent pollutants such as dust and bacteria from entering, thereby ensuring the cleanliness of the infusion channel. The puncture needle 5 is provided with a needle cover 10. The design of the needle cover 10 is mainly used to protect the needle tip when the puncture needle 5 is not in use to prevent the needle tip from being contaminated. Or it may be damaged due to accidental collision. During actual application, medical staff will insert the catheter 401 together with the puncture needle 5 into the target blood vessel. Once the catheter 401 successfully enters the blood vessel, the puncture needle 5 can be withdrawn from the transparent tee 4, thereby realizing the safe implantation of the indwelling needle. It also includes a sliding seat 7, a fixing belt 8 and a transparent adhesive dressing belt 9. The sliding seat 7 is slidably set on the infusion tube 3, and the adjustment seat can slide freely along the infusion tube 3. The side of the sliding seat 7 facing the skin is provided with a fixing belt 8. The two ends of the fixing belt 8 are respectively provided with a hook surface and a corresponding hair surface, which can be bonded to each other. A transparent adhesive dressing belt 9 is wrapped around the sliding seat 7. The fixing belt 8 and the transparent adhesive dressing belt 9 are both made of anti-allergic polymer gel material, which can play a good protective role, reduce skin allergic reactions, and improve patient comfort.

[0023] In actual application, after the medical staff completes the puncture operation, they first use the fixing belt 8 to wrap around the patient's wrist or forearm for one week, and ensure that the two ends of the fixing belt 8 are firmly bonded together to stably fix the entire indwelling needle, while preventing the indwelling needle from directly pressing the patient's skin. Subsequently, the medical staff cuts a transparent adhesive dressing tape 9 of appropriate length, wraps it around the transparent tee 4 and the outer periphery of the heparin cap 1, and then fixes it on the skin to prevent these hard parts from directly pressing the skin, and provide additional protection and fixation, thereby reducing irritation or damage to the skin at the puncture site, thereby improving the comfort and safety during the treatment process.

[0024] Example 2: Based on Example 1, please refer to Figure 3 and Figure 4, also includes a knob 11, a threaded rod 12, a clamp 13 and an anti-slip pad 14. A clamp 13 is provided on the end of the infusion tube 3 close to the heparin cap 1, and the clamp 13 can clamp the infusion tube 3. A threaded hole is provided in the middle of the clamp 13, and a threaded rod 12 is provided in the threaded hole. The left end of the threaded rod 12 is provided with a knob 11 with a flow rate gear mark. The gear mark can help medical staff intuitively understand the currently set infusion speed. The outer surface of the knob 11 is provided with an anti-slip pad 14 for increasing friction to ensure that medical staff can easily operate the knob 11 even when wearing gloves.

[0025] By rotating the knob 11 forward and backward, the threaded rod 12 can be moved in or out, thereby driving the clamp 13 to loosen or clamp the infusion tube 3. When the knob 11 is rotated in the reverse direction, the clamp 13 will apply pressure to the infusion tube 3, resulting in a reduction in the flow area in the infusion tube 3, thereby slowing down the flow of liquid. On the contrary, if the knob 11 is rotated forward, the pressure of the clamp 13 on the infusion tube 3 is reduced, and the infusion flow rate is accelerated, thereby realizing convenient adjustment of the flow rate of the indwelling needle.

[0026] See also Figure 3 , including a heater 15, a heating tube 16 and a protective shell 17. The heater 15 is installed on the heparin cap 1, and the heating tube 16 is connected to the heater 15. The infusion tube 3 at the lower end of the heparin cap 1 is covered with a protective shell 17. The heating tube 16 is arranged in a serpentine shape inside the protective shell 17 to ensure uniform heat distribution and prevent local overheating. At the same time, it increases the contact area with the infusion tube 3 and improves heating efficiency.

[0027] During infusion, the heater 15 is started, and the heat generated by the heater 15 is transferred to the infusion tube 3 through the heating tube 16, thereby heating the liquid medicine flowing through the infusion tube 3, promoting the absorption of the liquid medicine, and reducing the stimulation of the liquid medicine on the blood vessels, thereby improving the patient's treatment experience.

[0028] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A skin-protective intravenous catheter, comprising a heparin cap (1), an infusion tube (3), a transparent tee (4), a catheter (401), a puncture needle (5) and a needle wing (6), wherein one end of the infusion tube (3) is connected to the heparin cap (1), and the other end is connected to the transparent tee (4), the transparent tee (4) is connected to the catheter (401), and is equipped with a puncture needle (5), and an integrated needle wing (6) is provided on the outside of the puncture needle (5), characterized in that: It also includes a sliding seat (7), a fixing belt (8) and a transparent adhesive dressing belt (9), wherein the sliding seat (7) is slidably arranged on the infusion tube (3), and a fixing belt (8) is arranged on the side of the sliding seat (7) facing the skin, and the two ends of the fixing belt (8) are respectively provided with a hook surface and a corresponding hair surface, which can be bonded together, and a transparent adhesive dressing belt (9) is wound around the sliding seat (7).

2. A skin-protective intravenous catheter according to claim 1, characterized in that: It also includes a protective cover (2), and the protective cover (2) is provided at the interface of the heparin cap (1).

3. A skin-protective intravenous catheter according to claim 2, characterized in that: It also includes a needle cover (10), and the puncture needle (5) is provided with the needle cover (10).

4. A skin-protective intravenous catheter according to claim 3, characterized in that: It also includes a knob (11), a threaded rod (12) and a clamp (13). The clamp (13) is provided on one end of the infusion tube (3) close to the heparin cap (1). The clamp (13) can clamp the infusion tube (3). A threaded hole is provided in the middle of the clamp (13). The threaded hole is provided with a threaded rod (12). One end of the threaded rod (12) is provided with a knob (11).

5. The skin-protective intravenous catheter according to claim 4, characterized in that: The knob (11) is engraved with a circle of flow rate gear markings.

6. The skin-protective intravenous catheter according to claim 5, characterized in that: It also includes an anti-skid pad (14), and the outer surface of the knob (11) is provided with an anti-skid pad (14).

7. The skin-protective intravenous catheter according to claim 6, characterized in that: It also includes a heater (15), a heating tube (16) and a protective shell (17). The heater (15) is installed on the heparin cap (1), and the heating tube (16) is connected to the heater (15). The infusion tube (3) at the lower end of the heparin cap (1) is covered with a protective shell (17). The heating tube (16) is arranged in a serpentine shape and surrounded inside the protective shell (17).

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