Infusion harbor needle fixing device

Abstract

The utility model relates to an infusion port needle fixing device which comprises a first application and a second application, a first bonding face is arranged on the first application, a center hole is formed in the center of the first application, an annular flange is arranged on the periphery of the center hole, a containing cavity used for containing a butterfly-shaped needle wing is formed in the annular flange, and the butterfly-shaped needle wing is arranged in the containing cavity. One end of the second patch is a fixed end fixed on the annular flange or the first patch, the other end of the second patch is a pasting end, an elastic pressing block is arranged between the pasting end and the fixed end, and the elastic pressing block is arranged corresponding to the containing cavity; the face, provided with the elastic pressing block, of the second patch is provided with a second bonding face used for bonding the second patch to the first patch or the annular flange. The elastic pressing block is arranged, so that the acting force borne by the second application can be buffered, then the acting force borne by the first application is relieved, the first application can be attached to the skin for a longer time, meanwhile, the butterfly-shaped needle wing is not prone to falling off, and the medical dressing has the advantage of being simple in structure.

Description

Technical Field

[0001] This utility model relates to a device for fixing infusion port needles. Background Technology

[0002] An infusion port, also known clinically as a PORT, is a specialized infusion device inserted into the body to reduce the irritation of blood vessels by medications. It consists of three parts: a non-traumatic needle, a catheter inserted into the vein, and an injection port implanted under the skin and connected to the infusion needle. The injection port is connected to the catheter inserted into a large vein to form a long-term vascular access, playing a role similar to a port, hence the name infusion port. To overcome the problem of traditional dressings being relatively easy to detach, a Chinese utility model patent, authorized publication number CN217219752U, entitled "A Split-Type Transparent Dressing Designed for a Safe Infusion Port Needle," discloses a transparent dressing comprising a first fixing dressing, a second fixing dressing, an infusion port seat, an annular retraction groove, and an infusion cavity. The infusion port seat is implanted subcutaneously in the patient's body. The annular retraction groove corresponds to the position of the infusion port seat and is placed outside the patient's body to fit against the patient's skin. A puncture needle is fixedly installed at the bottom of the infusion cavity, and an infusion catheter is fixedly connected to one end of the infusion cavity. Both sides of the infusion cavity are provided with butterfly-shaped needle wings.

[0003] While the first and second fixation dressings can improve the stability of the infusion port installation, there are also problems. When the first fixation dressing is in use, the body exerts an outward pulling force on the center of the first fixation dressing, causing the first fixation dressing to gradually detach from the center. After a long time, the first fixation dressing will still loosen, and the second fixation dressing attached to the first fixation dressing will also loosen along with the first fixation dressing.

[0004] Based on the above issues, the applicant conducted research, which led to this case. Utility Model Content

[0005] The purpose of this invention is to provide an infusion port needle fixation device that is easy to operate and does not easily come loose.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An infusion port fixation device includes a first dressing and a second dressing. The first dressing has a first adhesive surface and a central hole. An annular flange is provided around the central hole, and a receiving chamber for accommodating a butterfly-shaped needle wing is formed within the annular flange. One end of the second dressing is a fixed end fixed to the annular flange or the first dressing, and the other end is an adhesive end. An elastic pressure block is provided between the adhesive end and the fixed end, and the elastic pressure block is provided corresponding to the receiving chamber. The side of the second dressing with the elastic pressure block has a second adhesive surface for adhering the second dressing to the first dressing or the annular flange.

[0008] In a preferred embodiment of this invention, the second adhesive surface is disposed around the periphery of the elastic pressure block, and the area of ​​the outer periphery of the second adhesive surface is larger than the area of ​​the annular flange.

[0009] In a preferred embodiment of this utility model, the first adhesive surface is disposed on the side of the first patch that is opposite to the second patch, and a peelable first protective film is provided on the first adhesive surface.

[0010] As a preferred embodiment of this utility model, a peelable second protective film is provided on the second adhesive surface.

[0011] In a preferred embodiment of this invention, both the first and second dressings are transparent dressings.

[0012] As a preferred embodiment of this utility model, the elastic pressure block is provided with an observation hole at its center.

[0013] In a preferred embodiment of this invention, the elastic pressure block is a cotton layer.

[0014] In a preferred embodiment of this invention, the annular flange is a plastic flange.

[0015] As a preferred embodiment of the present invention, the annular flange is provided with a guide groove for accommodating the drainage tube.

[0016] As a preferred embodiment of this utility model, both the first protective film and the second protective film are anti-stick paper.

[0017] By employing the technical solution of this utility model, a second dressing is provided, on which an elastic pressure block is set. In use, the butterfly-shaped needle wings are inserted through the annular flange, and the second dressing is placed against the annular flange or the first dressing. The elastic pressure block is embedded in the receiving cavity of the annular flange, pressing down on the butterfly-shaped needle wings. The annular flange can limit the excessive movement of the butterfly-shaped needle wings in the circumferential direction, and the elastic pressure block can buffer the upward movement of the butterfly-shaped needle wings. Even if the butterfly-shaped needle wings move upward a short distance, they will be restricted by the second dressing and will not be able to continue moving upward. By setting the elastic pressure block, the force on the second dressing can be buffered, thereby alleviating the force on the first dressing, allowing the first dressing to adhere to the skin for a longer time. At the same time, the butterfly-shaped needle wings are not easy to fall off. This utility model has the advantage of simple structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the present invention with a butterfly-shaped needle wing.

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure after the second adhesive is applied in this utility model.

[0022] In the picture:

[0023] First application 10 First adhesive surface 11

[0024] First protective film 12, central hole 13

[0025] Second application 20 Second adhesive surface 21

[0026] Elastic pressure block 22 Observation hole 23

[0027] Second protective film 24

[0028] Annular flange 30 accommodating chamber 31

[0029] Guide groove 32, butterfly-shaped needle wing 43

[0030] 50 drainage tube Detailed Implementation

[0031] To better understand the technical solution of this utility model, the following description is provided in more detail with reference to the embodiments.

[0032] Reference Figures 1 to 4The infusion port fixation device includes a first dressing 10 and a second dressing 20. The first dressing 10 is described in terms of its orientation as it is attached to the skin. The first dressing 10 is located above the skin and has a first adhesive surface 11. The first dressing 10 has a central hole 13 at its center, which extends from the upper surface to the lower surface of the first dressing 10. The central hole 13 has an annular flange 30 around its periphery, which extends upward. The annular flange 30 forms a receiving chamber 31 for accommodating a butterfly-shaped needle wing 43. In the embodiment, the receiving chamber 31 is slightly larger than the butterfly-shaped needle wing 43. One end of the second patch 20 is a fixed end fixed to the annular flange 30 or the first patch 10 (in this embodiment, the fixed end is fixed to the first patch 10), and the other end is an adhesive end. An elastic pressure block 22 is provided between the adhesive end and the fixed end. The elastic pressure block 22 is fixed to the second patch 20, for example, by adhesive bonding. The elastic pressure block 22 is provided corresponding to the receiving chamber 31. In this embodiment, the receiving chamber 31 has a rectangular cross-section, and the elastic pressure block 22 is a flat cuboid. In use, the elastic pressure block 22 is embedded in the receiving chamber 31 and presses against the butterfly-shaped needle wing 40. The side of the second patch 20 where the elastic pressure block 22 is provided has a second adhesive surface 21 for bonding the second patch 20 to the first patch 10 or the annular flange 30. That is, in use, the second patch 20 can be bonded to the annular flange 30 or to the first patch 10. In a preferred embodiment of this invention, the second adhesive surface 21 is disposed around the periphery of the elastic pressure block 22, and the area of ​​the outer periphery of the second adhesive surface 21 is larger than the area of ​​the annular flange 30. During use, the second adhesive surface 21 is adhered to the second patch 20 to enhance its adhesive strength. To ensure better adhesion of the second patch 20 to the first patch 10, the upper surface of the first patch 10 is provided with a relatively rough friction surface.

[0033] As a preferred embodiment of the present invention, the first adhesive surface 11 is disposed on the side of the first patch 10 facing away from the second patch 20, and a peelable first protective film 12 is provided on the first adhesive surface 11.

[0034] In a preferred embodiment of this invention, the second adhesive surface 21 is provided with a peelable second protective film 24. In an embodiment, as a preferred embodiment of this invention, both the first protective film 12 and the second protective film 24 are release liner sheets; by peeling off the first protective film 12 and the second protective film 24, the first adhesive surface 11 and the second adhesive surface 21 can be adhered to their respective positions.

[0035] As a preferred embodiment of this utility model, both the first dressing 10 and the second dressing 20 are transparent dressings, and can be sterile adhesives commonly used in the medical field.

[0036] As a preferred embodiment of this utility model, the center of the elastic pressure block 22 is provided with an observation hole 23 to facilitate observation of the state of the butterfly-shaped needle wing 43.

[0037] In a preferred embodiment of this invention, the elastic pressure block 22 is a cotton layer or a sterile foam layer that meets hygiene standards. In a preferred embodiment of this invention, the annular flange 30 is a plastic flange, and the plastic is sterile plastic. In a preferred embodiment of this invention, the annular flange 30 is provided with a guide groove 32 for accommodating the drainage tube 50. The guide groove 32 extends from the inner side to the outer side of the annular flange 30. After the butterfly-shaped needle wing 43 is inserted into the accommodating chamber 31, the drainage tube connected to the butterfly-shaped needle wing 43 rests against the guide groove 32, allowing the second dressing 20 to adhere more smoothly to the first dressing 10.

[0038] The scope of protection of this utility model is not limited to this embodiment. Any similar modifications made to it are considered to be within the scope of protection of this utility model.

Claims

1. An infusion port fixation device, comprising a first dressing and a second dressing, wherein the first dressing has a first adhesive surface, characterized in that: The first patch has a central hole at its center, and an annular flange is provided around the central hole. An accommodating chamber for accommodating the butterfly-shaped needle wings is formed inside the annular flange. One end of the second patch is a fixed end that is fixed to the annular flange or the first patch, and the other end is an adhesive end. An elastic pressure block is provided between the adhesive end and the fixed end. The elastic pressure block is provided corresponding to the accommodating chamber. The side of the second patch with the elastic pressure block has a second adhesive surface for adhering the second patch to the first patch or the annular flange.

2. The infusion port fixation device as described in claim 1, characterized in that: The second adhesive surface is disposed around the periphery of the elastic pressure block, and the area of ​​the outer periphery of the second adhesive surface is larger than the area of ​​the annular flange.

3. The infusion port fixation device as described in claim 2, characterized in that: The first adhesive surface is disposed on the side of the first patch that is opposite to the second patch, and a peelable first protective film is provided on the first adhesive surface.

4. The infusion port fixation device as described in claim 3, characterized in that: The second adhesive surface is provided with a peelable second protective film.

5. The infusion port fixation device as described in claim 4, characterized in that: Both the first and second dressings are transparent.

6. The infusion port fixation device as described in claim 5, characterized in that: The elastic block has an observation hole at its center.

7. The infusion port fixation device as described in claim 6, characterized in that: The elastic pressure block is a cotton layer.

8. The infusion port fixation device as described in claim 7, characterized in that: The annular flange is a plastic flange.

9. The infusion port fixation device as described in claim 8, characterized in that: The annular flange is provided with a guide groove for accommodating the drainage tube.

10. The infusion port fixation device as described in claim 4, characterized in that: Both the first protective film and the second protective film are release paper.

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