Disposable intravenous infusion needle convenient to wash
By designing the flushing needle and protective sleeve at specific angles, the problem of incomplete cleaning of the heparin cap during intravenous infusion needle flushing is solved, achieving thorough cleaning of the heparin cap, preventing bacterial growth and thrombosis, and improving operational safety and convenience.
Patent Information
- Application Number
- CN202423049973.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing intravenous infusion needles cannot effectively remove internal blood and medication when flushing the heparin cap, which can easily lead to problems such as bacterial growth, thrombosis, and catheter blockage.
A flushing needle was designed with the main body and tip set at a certain angle and equipped with a protective sleeve. It achieves thorough flushing of the heparin cap through multiple flushing holes and convective water flow. The structure is simple and easy to use.
It effectively removes blood and medication from the heparin cap, preventing bacterial growth and thrombosis, thus improving operational safety and ease of use.
Smart Images
Figure CN223874206U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to infusion needle assembly field, especially one -off use intravenous infusion needle convenient to flush. BACKGROUND
[0002] The indwelling needle and heparin cap are used simultaneously during intravenous infusion, in clinical use, the indwining needle is generally used for blood sampling, infusion component blood, parenteral nutrition, contrast agent or other viscous solution, and these blood and medicaments are often retained in the head end of heparin cap, if the blood and medicaments in the head end of heparin cap cannot be flushed clean, the following situations can occur: 1, easy to cause the bacteria breeding in the catheter, cause blood-borne infection;2, blood clotting after flushing can cause intravenous thrombosis;3, blood or drug solution coagulation can cause pipe blockage, cause unplanned extubation, increase the cost and pain of patient. SUMMARY
[0003] The utility model discloses a one -off use intravenous infusion needle convenient to flush, which can flush the blood or medicaments in the heparin cap clean through the flush needle head with a certain angle, and has simple structure and convenient use.
[0004] The technical scheme of the present application comprises an indwelling needle body, a heparin cap arranged at the liquid inlet end of the indwelling needle body, a flush needle head matched with the heparin cap, the flush needle head comprising a fixed head, the fixed head having a needle body at one end, the needle body having a sharp head part arranged at a certain angle with the needle body at the end of the needle body, and a plurality of flush holes uniformly arranged on the needle body.
[0005] In the one -off use intravenous infusion needle convenient to flush, a protective sleeve for protecting the flush needle head is arranged outside the flush needle head.
[0006] In the one -off use intravenous infusion needle convenient to flush, a first liquid flow channel is arranged in the fixed head, and a second liquid flow channel is arranged in the needle body and connected with the first liquid flow channel.
[0007] In the one -off use intravenous infusion needle convenient to flush, the angle between the sharp head part and the needle body ranges from 28 degrees to 32 degrees.
[0008] In the one -off use intravenous infusion needle convenient to flush, an internal thread part is arranged at the port of the first liquid flow channel.
[0009] The protective sleeve comprises a sleeve body, one end of the sleeve body is provided with a positioning portion, the fixing head is clamped in the positioning portion, and the needle body and the pointed head portion are arranged in the sleeve body.
[0010] The positioning portion is uniformly provided with a plurality of clamping grooves on the inner side, and the side portion of the fixing head is uniformly provided with a plurality of positioning strips matched with the clamping grooves.
[0011] The outer side of the sleeve body is provided with anti-skid protrusions.
[0012] The sleeve body is made of transparent material.
[0013] The lower end edge of the fixing head is provided with a transition arc.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] 1、The flushing needle is matched with the heparin cap, the heparin cap is connected to the liquid inlet end of the indwelling needle body, blood or liquid medicine is left in the heparin cap after the indwelling needle body is used, the flushing needle is taken out from the protective sleeve, the needle body of the flushing needle is inserted into the heparin cap, the fixing head is connected to the liquid source, the pointed head portion is arranged at a certain angle with the needle body, the flushing liquid flows out from the flushing hole and the pointed head portion, and the flushing liquid flowing out from the pointed head portion flushes the inner side of the heparin cap; the blood or liquid medicine in the heparin cap is flushed clean through the flushing needle arranged at a certain angle, and the structure is simple and convenient to use.
[0016] 2、The protective sleeve can avoid that the flushing needle pierces the package and can also protect the safety of medical staff during operation.
[0017] 3、The needle body is uniformly provided with a plurality of flushing holes, the water flow flushed out from the flushing holes flushes downward, the pointed head portion is arranged at a certain angle with the needle body, the water flow flushed out flushes upward after contacting the inner wall of the heparin cap, and the two water flows form a convection, so that the dirt in the heparin cap is flushed clean. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of the utility model;
[0019] Figure 2 It is a schematic view of the cooperation of the protective sleeve and the flushing needle;
[0020] Figure 3 It is a schematic view of the protective sleeve;
[0021] Figure 4 Figure 1 is a schematic view of the indwelling needle body.
[0022] The mark in the drawing is explained as follows: 1-indwelling needle body, 2-heparin cap, 3-irrigation needle head, 4-protection sleeve, 5-fixing head, 6-first liquid passage, 7-needle head body, 8-tipped part, 9-second liquid passage, 10-irrigation hole, 11-internal thread part, 41-sleeve body, 42-positioning part, 43-clamping groove, 51-positioning strip, 411-anti-skid convex, 52-transition arc. DETAILED DESCRIPTION
[0023] The utility model is further explained in combination with the drawings and examples below, but not as the basis for limiting the utility model.
[0024] Example: the disposable intravenous infusion needle convenient for irrigation, including indwelling needle body 1, the liquid inlet end of indwelling needle body 1 is connected with heparin cap 2, as shown in the attached Figure 4 It also includes the irrigation needle head 3 matched with the heparin cap 2, and the irrigation needle head is matched with the indwelling needle body and the heparin cap, and the three components are placed in one package. The irrigation needle head 3 has a protection sleeve 4 outside for protecting the irrigation needle head 3, as shown in the attached Figure 2 It also includes the irrigation needle head 3 matched with the heparin cap 2, and the irrigation needle head is matched with the indwelling needle body and the heparin cap, and the three components are placed in one package. The irrigation needle head 3 has a protection sleeve 4 outside for protecting the irrigation needle head 3, as shown in the attached Figure 1 The fixing head 5 has a needle head body 7 at one end, and the end of the needle head body 7 has a tipped part 8 arranged at a certain angle with the needle head body 7, and the angle between the tipped part 8 and the needle head body 7 ranges between 28 degrees and 32 degrees. The structure inside the heparin cap is complex, and there is an irrigation dead angle. The inclined structure ensures the irrigation effect, and the needle head body 7 has a second liquid passage 9 connected with the first liquid passage 6. The needle head body 7 has a plurality of irrigation holes 10 evenly arranged thereon. The fixing head is connected with the irrigation source, liquid enters the second liquid passage from the first liquid passage, and finally flows out from the irrigation holes and the tipped part. The water flow from the irrigation holes washes downward, and the water flow from the tipped part washes upward, and the two water flows interact to form convection, so that the dirt inside the heparin cap is washed clean. The protection sleeve 4 includes a sleeve body 41, as shown in the attached Figure 3As shown, one end of the sleeve body 41 has a positioning portion 42, the fixing head 5 is clamped in the positioning portion 42, the needle head body 7 and the sharp head portion 8 are arranged in the sleeve body 41, the protective sleeve can better protect the flushing needle, and the flushing needle can avoid piercing the package, and the safety of medical staff during operation can be protected. The inside of the positioning portion 42 is uniformly provided with a plurality of clamping grooves 43; the side of the fixing head 5 is uniformly provided with a plurality of positioning strips 51 matched with the clamping grooves 43, the flushing needle is fixed in the protective sleeve through the clamping structure, the sharp head portion is protected, and damage of the sharp head portion is avoided. The lower end edge of the fixing head 5 has a transition arc 52, the fixing head can be smoothly embedded into the positioning portion by arranging the transition arc. The outside of the sleeve body 41 has an anti-skid protrusion 411, the flushing needle is clamped in the protective sleeve, the flushing needle needs to be pulled out during use, the friction force can be improved through the anti-skid protrusion, and the sleeve body 41 is made of transparent material, so that the condition of the sharp head portion can be clearly observed.
[0025] The working principle of the utility model is: the flushing needle is matched with the heparin cap, the heparin cap is connected on the liquid inlet end of the indwelling needle body, blood or liquid medicine is left in the heparin cap after the indwelling needle body is used, the flushing needle is taken out from the protective sleeve, the needle head body of the flushing needle is inserted into the heparin cap, the fixing head is connected with the liquid source, the sharp head portion is arranged at a certain angle with the needle head body, the flushing liquid flows out from the flushing hole and the sharp head portion, and the flushing liquid flowing out from the sharp head portion flushes the inside of the heparin cap; the flushing needle arranged at a certain angle can flush the blood or the medicine in the heparin cap, and the structure is simple and convenient to use.
Claims
1. A disposable venous infusion needle for easy rinsing, comprising a retention needle body (1), the liquid inlet end of the retention needle body (1) is provided with a heparin cap (2); characterized in that: The application further discloses a flushing needle (3) matched with the heparin cap (2), the flushing needle (3) comprises a fixed head (5), one end of the fixed head (5) is provided with a needle body (7), and the end of the needle body (7) is provided with a sharp head (8) which is arranged at an angle with the needle body (7); and a plurality of flushing holes (10) are uniformly arranged on the needle body (7).
2. The flushable, single-use intravenous infusion needle of claim 1, wherein: The flushing needle (3) is externally provided with a protective sleeve (4) for protecting the flushing needle (3).
3. The flushable, single-use intravenous infusion needle of claim 1, wherein: The fixed head (5) is internally provided with a first liquid flow channel (6), and the needle body (7) is internally provided with a second liquid flow channel (9) which is communicated with the first liquid flow channel (6).
4. The flushable, single-use intravenous infusion needle of claim 1, wherein: The angle between the sharp head (8) and the needle body (7) ranges from 28 degrees to 32 degrees.
5. The flushable, single-use intravenous infusion needle of claim 3, wherein: An inner thread part (11) is arranged at the port of the first liquid flow channel (6).
6. The flushable, single-use intravenous infusion needle of claim 2, wherein: The protective sleeve (4) comprises a sleeve body (41), one end of the sleeve body (41) is provided with a positioning part (42), the fixed head (5) is clamped in the positioning part (42), and the needle body (7) and the sharp head (8) are arranged in the sleeve body (41).
7. The flushable, single-use intravenous infusion needle of claim 6, wherein: A plurality of clamping grooves (43) are uniformly arranged on the inner side of the positioning part (42); and a plurality of positioning strips (51) which are matched with the clamping grooves (43) are uniformly arranged on the side of the fixed head (5).
8. The flushable, single-use intravenous infusion needle of claim 6, wherein: The outer side of the sleeve body (41) is provided with anti-skid protrusions (411).
9. The flushable, single-use intravenous infusion needle of claim 8, wherein: The sleeve body (41) is made of transparent material.
10. The flushable, single-use intravenous infusion needle of claim 1, wherein: The lower end edge of the fixed head (5) is provided with a transition arc (52).