Disposable remaining needle
By designing a protective device in the intravenous indwelling needle, the steel needle tip is wrapped with a silicone protective sleeve and a thermoset plastic baffle, the scratch problem caused by needle tip exposure is solved, and safe and convenient operation and low-cost production are achieved.
Patent Information
- Application Number
- CN202420350694.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-26
AI Technical Summary
The existing intravenous indwelling needles are exposed after puncture, which is prone to blood contamination and leads to scratches and infections among medical staff, and lacks effective protective devices.
A disposable indwelling needle is designed, using a protective device, including a silicone protective sleeve, a thermoset plastic baffle and a fixing plate. The steel needle insertion seat is equipped with a storage groove and a pressing plate. When the steel needle is pulled out, the protective sleeve is automatically wrapped. Needle tip to prevent damage.
It effectively avoids the harm caused by steel to medical staff, is simple to operate and easy to obtain materials, reduces production costs and is convenient to promote.
Smart Images
Figure CN222130700U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a disposable indwelling needle. Background Art
[0002] Intravenous indwelling needles are also called intravenous cannula needles, or indwelling needles for short. The use of intravenous indwelling needles can reduce the pain caused by repeated venous punctures and the fear of injections in patients. At present, indwelling needles are mainly used in pediatric patients. They can reduce the pain of children, relieve the anxiety of parents, facilitate clinical medication, rescue medication for acute and critical patients, and reduce the workload of nurses. Therefore, intravenous indwelling needles are widely used in clinical practice. The core components of the indwelling needle include a soft catheter that can be retained in the blood vessel, and a stainless steel puncture guide needle core. When used, the catheter and the needle core are punctured into the blood vessel together. When the catheter is fully entered into the blood vessel, the needle core is withdrawn, and only the soft catheter is retained in the blood vessel for infusion therapy. The existing intravenous indwelling needle will be exposed to the air after puncturing the patient. Since the needle tip after puncture will be contaminated with the patient's blood, medical staff are easily scratched and infected by the needle tip when recovering or taking and placing the needle tip. Utility Model Content
[0003] The utility model aims to provide a disposable indwelling needle in view of the problems existing in the background technology.
[0004] The technical solution of the utility model is as follows: a disposable indwelling needle comprises an indwelling needle body, the indwelling needle body comprises a hose and a steel needle, a hose seat is installed at the bottom of the hose, the steel needle is installed on the steel needle mounting seat, a steel needle insertion seat is installed in the hose seat, a protective device is arranged between the steel needle insertion seat and the steel needle mounting seat, the protective device comprises a protective sleeve inserted in the steel needle insertion seat, both sides of the protective sleeve are folded parts, the protective device also comprises a receiving groove provided in the steel needle mounting seat, the steel needle passes through the protective sleeve and enters into the hose, the protective sleeve comprises baffles on both sides, the baffle is installed with a fixing plate, the fixing plate is provided with a buckle groove, both sides of the receiving groove are provided with side grooves, one end of a pressing plate is fixed in the side groove, and a fixing buckle matched with the buckle groove is fixed on the pressing plate.
[0005] Preferably, the baffle is located outside the steel needle insertion seat, the baffle is arranged close to the surface of the steel needle insertion seat, the fixing plate is arranged close to both sides of the steel needle insertion seat, the protective cover is made of silicone material, and the baffle and the fixing plate are both made of thermosetting plastic material.
[0006] Preferably, the volume of the steel needle insertion seat after the protective cover is installed is adapted to the volume of the storage groove, the pressing plate is arranged at the end of the storage groove, the pressing plate is made of thermoplastic plastic, and the fixing buckle is made of thermosetting plastic.
[0007] Preferably, a mounting hole is provided in the steel needle insertion seat, and the protective cover is located in the mounting hole.
[0008] Preferably, a handle is fixedly mounted on the side of the steel needle mounting seat.
[0009] Compared with the existing technology, the beneficial effect of the utility model is: through the setting of the protective device, when the steel needle enters the hose and needs to be pulled out, the pressing plate can be pressed to make the fixing buckle enter the buckle groove, so that the pressing plate and the buckle groove are fixed, and then the steel needle mounting seat is pulled to make the steel needle come out, and the steel needle mounting seat will also bring out the protective cover through the pressing plate, and the brought out protective cover will wrap the steel needle, thereby preventing the steel needle from hurting medical staff, and this method is simple to operate, and the production materials are easy to obtain, so the manufacturing cost is low and it is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a structural schematic diagram of a disposable indwelling needle proposed by the utility model;
[0011] Figure 2 This is a structural schematic diagram of a disposable indwelling needle protection device proposed by the utility model;
[0012] Figure 3 This is a schematic structural diagram of a disposable protective cover for an indwelling needle proposed by the utility model;
[0013] Figure 4 It is a schematic diagram of the changing process of the protective cover during pulling.
[0014] Figure numerals: 1. indwelling needle body; 2. hose; 3. hose seat; 4. steel needle insertion seat; 5. steel needle; 6. steel needle mounting seat; 7. handle; 8. protective device; 81. mounting hole; 82. protective cover; 83. baffle; 84. fixing plate; 85. buckle groove; 86. side groove; 87. pressing plate; 88. fixing buckle; 89. storage groove; 90. folding part. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0016] Embodiment 1
[0017] Refer to the attached Figure 1-4 A disposable indwelling needle comprises an indwelling needle body 1, the indwelling needle body 1 comprises a hose 2 and a steel needle 5, a hose seat 3 is installed at the bottom of the hose 2, the steel needle 5 is installed on a steel needle mounting seat 6, a steel needle insertion seat 4 is installed in the hose seat 3, a protective device 8 is provided between the steel needle insertion seat 4 and the steel needle mounting seat 6, the protective device 8 comprises a protective cover 82 inserted in the steel needle insertion seat 4, and both sides of the protective cover 82 are folding parts 90, such as Figure 3 and 4 As shown, the protective sleeve 82 is shortest when it is completely inside the steel needle insertion seat 4. As the protective sleeve 82 continues to expand from the steel needle insertion seat 4 to the outside folding portion 90, the protective sleeve 82 gradually becomes longer. The protective device 8 also includes a storage groove 89 opened in the steel needle mounting seat 6. The steel needle 5 passes through the protective sleeve 82 and enters the hose 2. The protective sleeve 82 includes baffles 83 on both sides. The baffle 83 is installed with a fixing plate 84. The fixing plate 84 is provided with a buckle groove 85. Side grooves 86 are opened on both sides of the storage groove 89. One end of a pressing plate 87 is fixed in the side groove 86. A fixing buckle 88 matched with the buckle groove 85 is fixed on the pressing plate 87. The baffle 83 is located outside the steel needle insertion seat 4. The baffle 83 is arranged close to the surface of the steel needle insertion seat 4. The fixing plate 84 is arranged close to both sides of the steel needle insertion seat 4. The protective sleeve 82 is made of silicone material, and the baffle 83 and the fixing plate 84 are both made of thermosetting plastic material, such as Figure 2 and 4 As shown, when the protective sleeve 82 is completely located in the steel needle insertion seat 4, because the silicone material has a certain elasticity, the protective sleeve 82 will fill the steel needle insertion seat 4, ensuring that the protective sleeve 82 will not come out of the steel needle insertion seat 4. The volume of the steel needle insertion seat 4 after the protective sleeve 82 is installed is adapted to the volume of the storage groove 89. The pressing plate 87 is set at the end of the storage groove 89. The pressing plate 87 is made of thermoplastic plastic, and the fixing buckle 88 is made of thermosetting plastic. Figure 2 As shown, such a configuration ensures that when the steel needle 5 is moved by pushing the steel needle mounting seat 6, the baffles 83 and the fixing plates 84 on both sides of the steel needle insertion seat 4 and the protective sleeve 82 will completely enter the storage groove 89, and then the pressing plate 87 is facing the fixing plate 84, so that pressing the pressing plate 87 can make the fixing buckle 88 enter the buckle groove 85, so that the pressing plate 87 and the buckle groove 85 are fixed, so that there will be no error, and the pressing plate 87 is made of thermoplastic plastic to give it a certain bending ability, and the fixing plate 84 and the fixing buckle 88 are made of thermosetting plastic, which ensures that after the fixing buckle 88 enters the buckle groove 85, because it has a strong hardness, the fixing buckle 88 can be well fixed in the buckle groove 85, the steel needle insertion seat 4 is provided with a mounting hole 81, the protective sleeve 82 is located in the mounting hole 81, and the handle 7 is fixedly installed on the side of the steel needle mounting seat 6;
[0018] When using, Figure 4As shown, when inserting the steel needle 5 again, the medical staff holds it and pushes the handle 7 to move the steel needle mounting seat 6, so that the steel needle 5 will move, and the steel needle 5 will enter into the gap between the protective sleeves 82. As the steel needle 5 continues to enter, it will pass through the protective sleeve 82 into the hose 2, and then the needle insertion operation for the patient will be performed. After the needle is inserted, the hose 2 is retained in the patient's blood vessel. At this time, the steel needle insertion seat 4, the baffle 83 and the fixing plate 84 are all in the storage groove 89, and then the pressing plate 87 is pressed outside the steel needle mounting seat 6 to fix the fixing buckle 88 in the buckle groove 85. When the steel needle 5 is pulled out, as shown in FIG. Figure 4 As shown, when the steel needle 5 is not pulled out, the storage groove 89 of the protective cover 82 is folded. As the medical staff holds the handle 7 and moves it outward, the steel needle mounting seat 6 moves. The movement of the steel needle mounting seat 6 drives the fixing plate 84 to move through the fixing buckle 88, thereby driving the protective cover 82 to move outside the steel needle insertion seat 4. Figure 4 As shown, the folded portion 90 gradually opens when the steel needle 5 is being pulled. Figure 4 As shown, when the steel needle 5 is fully pulled out, the folding portion 90 is fully opened, so that the protective sleeve 82 will wrap the steel needle 5 outside the steel needle insertion seat 4, thereby preventing the steel needle 5 from hurting the medical staff. Through this arrangement, when the steel needle 5 enters the hose 2 and needs to be pulled out, pressing the pressing plate 87 can make the fixing buckle 88 enter the buckle groove 85, so that the pressing plate 87 and the buckle groove 85 are fixed, and then the steel needle mounting seat 6 is pulled to make the steel needle 5 come out. The steel needle mounting seat 6 will also bring out the protective sleeve 82 through the pressing plate 87, and the brought out protective sleeve 82 will wrap the steel needle 5, thereby preventing the steel needle 5 from hurting the medical staff. In addition, this method is simple to operate and the production materials are easy to obtain, so the manufacturing cost is low and it is easy to promote.
[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A disposable indwelling needle, comprising an indwelling needle body (1), wherein the indwelling needle body (1) comprises a hose (2) and a steel needle (5), a hose seat (3) is installed at the bottom of the hose (2), and the steel needle (5) is installed on the steel needle mounting seat (6), Features: A steel needle insertion seat (4) is installed in the hose seat (3), and a protective device (8) is provided between the steel needle insertion seat (4) and the steel needle mounting seat (6). The protective device (8) includes a protective sleeve (82) inserted in the steel needle insertion seat (4), and the two sides of the protective sleeve (82) are folded portions (90). The protective device (8) also includes a storage groove (89) provided in the steel needle mounting seat (6), and the steel needle (5) passes through the protective sleeve. The sleeve (82) enters into the hose (2), the protective sleeve (82) comprises baffles (83) on both sides, the baffles (83) are installed with fixing plates (84), the fixing plates (84) are provided with buckle grooves (85), both sides of the storage groove (89) are provided with side grooves (86), one end of a pressing plate (87) is fixed in the side groove (86), and a fixing buckle (88) matched with the buckle groove (85) is fixed on the pressing plate (87).
2. A disposable indwelling needle according to claim 1, It is characterized in that The baffle (83) is located outside the steel needle insertion seat (4), the baffle (83) is set closely to the surface of the steel needle insertion seat (4), the fixing plate (84) is set closely to both sides of the steel needle insertion seat (4), the protective cover (82) is made of silicone material, and the baffle (83) and the fixing plate (84) are both made of thermosetting plastic material.
3. A disposable indwelling needle according to claim 2, It is characterized in that The volume of the steel needle insertion seat (4) after the protective sleeve (82) is installed is adapted to the volume of the storage groove (89), the pressing plate (87) is arranged at the end of the storage groove (89), the pressing plate (87) is made of thermoplastic plastic, and the fixing buckle (88) is made of thermosetting plastic.
4. A disposable indwelling needle according to claim 1, It is characterized in that The steel needle insertion seat (4) is provided with a mounting hole (81), and the protective cover (82) is located in the mounting hole (81).
5. A disposable indwelling needle according to claim 1, It is characterized in that A handle (7) is fixedly mounted on the side of the steel needle mounting seat (6).