Novel infusion harbor needle auxiliary positioning puncture device
The design of the conical positioning ring and positioning disc solves the problem of inaccurate port-to-port puncture, achieving precise positioning of the puncture hole and uniform distribution of the puncture point, thereby improving the service life of the port-to-port and patient comfort.
Patent Information
- Application Number
- CN202422021978.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Inaccurate positioning of the infusion port during puncture can lead to port displacement and slippage, extravasation of medication, uneven puncture sites causing premature damage to the silicone membrane, repeated punctures increasing the risk of infection, and affecting the lifespan of the infusion port.
It adopts a conical positioning ring and positioning disk structure. The positioning disk is equipped with positioning puncture holes and needle holes. Combined with the orientation mark and convex ridge design, the puncture point can be changed by rotating the positioning disk to ensure accurate positioning and uniform distribution of needle holes and prevent repeated puncture damage.
It achieves precise positioning of the infusion port needle, improves the puncture success rate, reduces the risk of drug extravasation and infection, and extends the service life of the infusion port.
Smart Images
Figure CN223529803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a novel auxiliary positioning and puncture device for infusion port needles. Background Technology
[0002] An infusion port is a long-term indwelling intravenous infusion device, clinically used for patients requiring long-term infusions and chemotherapy. It has advantages such as a small port size, being implanted subcutaneously, not affecting daily life, and allowing for showering and swimming. In particular, the silicone membrane of the port can be repeatedly punctured more than 1000 times, with continuous use up to 19 years. However, the port needle (butterfly needle) has several drawbacks during puncture and injection, including inaccurate positioning leading to the needle failing to enter the port cavity; non-perpendicular insertion causing the needle to slip out and lead to drug extravasation; uneven puncture sites causing premature damage to the silicone membrane; and repeated punctures increasing the risk of infection. All of these issues affect the overall lifespan of the infusion port. Utility Model Content
[0003] The purpose of this invention is to provide a novel auxiliary positioning and puncture device for infusion ports, which can not only solve the technical problems of auxiliary positioning and puncture for infusion ports, but also solve the problem of extending the service life of infusion ports.
[0004] To solve the above problems, the technical solution of this utility model is as follows:
[0005] A novel auxiliary positioning and puncture device for infusion port needles includes a conical positioning ring and a positioning disk. The positioning disk is rotatably connected to the thinner end of the conical positioning ring. A positioning puncture hole is provided on the positioning disk. The positioning puncture hole includes a central hole on the positioning disk and multiple puncture holes around the central hole. The central hole and each puncture hole are connected through a connecting hole.
[0006] Multiple ear plates are fixedly connected to the thicker end of the positioning ring. Each ear plate is evenly distributed around the positioning axis and has a directional mark.
[0007] The positioning ring has four ear plates, each marked with a directional indicator: "up", "down", "left", and "right".
[0008] Multiple raised ridges are provided on the arc surface of the positioning disk, and each raised ridge is evenly distributed around the axis of the positioning disk.
[0009] The lengths of the various connecting holes are not the same.
[0010] A first opening is provided on the outer wall of the positioning ring, and a second opening corresponding to the first opening is provided on the positioning plate. One end of the positioning puncture hole is connected to the second opening.
[0011] The beneficial effects of this invention are as follows: The positioning ring ensures that the positioning disc fully conforms to the surface of the subcutaneous infusion port, allowing for precise positioning of the puncture hole to the silicone membrane of the infusion port. Simply insert the butterfly needle into the puncture hole to accurately puncture the infusion port's injection seat. This effectively prevents puncture hole deviation, improves puncture accuracy and success rate, and simplifies operation. Furthermore, rotating the positioning disc moves the puncture hole, changing the puncture point on the silicone membrane of the infusion port, preventing repeated punctures at the same point and thus reducing puncture-related complications, significantly extending the service life of the infusion port. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings:
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is a top view of the structure of this utility model.
[0015] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure at point AA.
[0016] In the diagram: 1. Positioning disc; 3. Positioning ring; 2. Protruding ridge; 4. First opening; 5. Ear plate; 6. Orientation mark; 7. Second opening; 8. Needle hole; 9. Center hole; 10. Connecting hole; 11. Concave-convex groove. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] A novel auxiliary positioning and puncture device for subcutaneous infusion port includes a conical positioning ring 3 and a positioning plate 1. The positioning plate 1 is fully fitted to the plane of the subcutaneous infusion port seat. The positioning plate 1 is rotatably connected to the narrower end of the conical positioning ring 3 through a groove 11. The positioning plate 1 and the positioning ring 3 together are 1 cm high. A positioning puncture hole is provided on the positioning plate 1. The positioning puncture hole includes a central hole 9 on the positioning plate 1. Four needle puncture holes 8 are provided around the central hole 9. The central hole 9 and each needle puncture hole 8 are connected through a connecting hole 10.
[0019] Multiple ear plates 5 are fixedly connected to the outer wall of the thicker end of the positioning ring 3. Each ear plate 5 is evenly distributed around the positioning axis, and a directional mark 6 is provided on the ear plate 5.
[0020] Four ear plates 5 are provided on the positioning ring 3, and the four ear plates 5 are marked with four directional marks 6: "up", "down", "left" and "right". The directional marks 6 are used to adjust the position of the puncture device.
[0021] Multiple raised ridges 2 are provided on the arc surface of the positioning disk 1, and each raised ridge 2 is evenly distributed around the axis of the positioning disk 1. The raised ridges 2 facilitate the rotation of the positioning disk 1.
[0022] The lengths of the connecting holes 10 are different. Because the lengths of the connecting holes 10 are different, when the positioning plate 1 is rotated, the four needle holes 8 can form four circles of needle puncture trajectory, thereby providing more puncture points, preventing the silicone membrane from being repeatedly punctured at the same point and causing damage, reducing puncture-related complications, and greatly extending the service life of the infusion port.
[0023] A first opening 4 with a width of 1 mm is provided on the outer wall of the positioning ring 3, and a second opening 7 corresponding to the first opening 4 is provided on the positioning plate 1. The first opening 4 and the second opening 7 with a width of 1 mm can pass through the butterfly needle body. The positioning plate 1 can be rotated to align the first opening 4 and the second opening 7. After the positioning needle is successfully inserted, it is easy to remove the positioning puncture device.
[0024] In addition, this positioning puncture kit is made of plastic and is designed as a disposable sterile package, which can be packaged together with the accompanying infusion port needle.
[0025] The working principle of this embodiment: This utility model is applicable to the positioning and puncture of the ureteral needle in subcutaneous infusion ports. In use, first, the positioning and puncture device is placed over the patient's skin over the infusion port, ensuring the positioning ring 3 is in contact with the patient's skin. Based on the patient's head-to-toe orientation, the "up," "down," "left," and "right" positions of the device are adjusted using the four directional markers 6. Then, the puncture hole of the positioning disc 1 is rotated to the required puncture position for precise puncture. Successful puncture on the first attempt prevents the ureteral needle from shifting during injection, improving accuracy and success rate. After puncture, the needle tip is less likely to dislodge, preventing extravasation of medication.
[0026] The rotating positioning disc 1 allows for easy repositioning of the puncture site each time the port-a-cath is changed, ensuring even distribution of puncture points, reducing damage to the silicone membrane, and extending the lifespan of the port-a-cath. Successful insertion on the first attempt reduces the risk of infection from repeated punctures, minimizes puncture-related complications, and improves patient comfort and satisfaction. After successful insertion, the auxiliary positioning device is removed, and the needle is then advanced to the base of the port-a-cath. This device is made of inexpensive materials, is easy to operate, and facilitates clinical use and widespread adoption.
[0027] The embodiments described in this specification are merely examples of implementations of the inventive concept. The scope of protection of this utility model should not be considered as limited to the specific forms described in the embodiments. The scope of protection of this utility model also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.
Claims
1. A novel auxiliary positioning and puncture device for infusion port needles, characterized in that: It includes a positioning ring (3) and a positioning disk (1). The positioning disk (1) is rotatably connected to one end of the positioning ring (3). A positioning puncture hole is provided on the positioning disk (1). The positioning puncture hole includes a central hole (9) on the positioning disk (1). Multiple needle holes (8) are provided around the central hole (9). The central hole (9) and each needle hole (8) are connected through a connecting hole (10).
2. The novel infusion port-aided positioning and puncture device according to claim 1, characterized in that: Multiple ear plates (5) are fixedly connected to the other end of the positioning ring (3). Each ear plate (5) is evenly distributed around the positioning axis, and a directional mark (6) is provided on the ear plate (5).
3. The novel infusion port-mounted needle auxiliary positioning puncture device according to claim 2, characterized in that: Four ear plates (5) are provided on the positioning ring (3), and the four ear plates (5) are marked with four directional marks (6) namely "up", "down", "left" and "right".
4. A novel auxiliary positioning and puncture device for infusion port needles according to any one of claims 1 to 3, characterized in that: Multiple protruding ridges (2) are provided on the arc surface of the positioning disk (1), and each protruding ridge (2) is evenly distributed around the axis of the positioning disk (1).
5. A novel auxiliary positioning and puncture device for infusion port needles according to any one of claims 1 to 3, characterized in that: The lengths of the various connecting holes (10) are not the same.
6. A novel auxiliary positioning and puncture device for infusion port needles according to any one of claims 1 to 3, characterized in that: A first opening (4) is provided on the outer wall of the positioning ring (3), and a second opening (7) corresponding to the first opening (4) is provided on the positioning plate (1). One end of the positioning puncture hole is connected to the second opening (7).