Infusion harbor needle fixing device

Abstract

An infusion harbor needle fixing device comprises a base and a cover body. The base and the cover body together form an accommodating space for accommodating an infusion harbor needle; the base comprises a bottom sheet, a first annular connecting piece and a second annular connecting piece; a medical adhesive is formed on the lower side of the bottom sheet; the first annular connecting piece is integrally fixed on the upper side of the bottom piece; a first convex edge is formed on the periphery of the upper end of the first annular connecting piece; the periphery of the first annular connecting piece is sleeved with the second annular connecting piece; a second convex edge is formed on the inner circumference of the lower end of the second annular connecting piece; an internal thread is formed on the inner circumference of the upper part of the second annular connecting piece; the second convex edge is positioned below the first convex edge; the cover body comprises an annular peripheral wall and a top cover located at the upper end of the peripheral wall. An external thread is formed on the outer peripheral surface of the lower part of the peripheral wall; the internal thread of the second annular connecting piece is meshed with the external thread of the cover body; a notch is formed in the peripheral wall; a silica gel sheet is fixed on the notch; and a kerf is formed on the silica gel sheet, so that a catheter of the port infusion needle can extend to the outside conveniently.

Description

Technical Field

[0001] The present application relates to an infusion port, and more particularly to an infusion port needle fixing device. Background Art

[0002] A totally implantable venous access port (TIVAP) is a closed venous infusion system that is completely implanted subcutaneously and remains in the body for a long time.

[0003] The infusion port should be used in conjunction with the infusion port needle; the port needle punctures the skin and enters the port seat, thereby establishing a predetermined infusion pathway. During the patient's hospitalization, the port needle needs to remain on the port seat for a few days to facilitate infusion. The port needle is relatively protruding on the annular skin surface. Even if a film is applied on it, the patient will often rub the port needle indirectly during activities, causing the port needle to shake continuously. In this way, the needle tip of the port needle may fall out of the port seat and be located under the patient's skin, and the infusion pathway will no longer be unobstructed. Utility Model Content

[0004] In view of the above problems, the present application aims to propose an infusion port needle fixing device, which can enclose the infusion port needle therein to prevent it from being touched or rubbed, which is conducive to ensuring that the tip of the port needle remains in the port seat.

[0005] The infusion port needle fixing device of the present application comprises: a base and a cover; the base and the cover together form a receiving space for receiving the infusion port needle;

[0006] The base comprises: a bottom sheet, a first annular connecting member, and a second annular connecting member;

[0007] A medical adhesive is formed on the lower side of the bottom film;

[0008] The first annular connecting member is integrally fixed to the upper side of the bottom sheet; a first convex edge is formed on the outer periphery of the upper end of the first annular connecting member;

[0009] The second annular connecting member is sleeved on the outer circumference of the first annular connecting member; a second convex edge is formed on the inner circumference of the lower end of the second annular connecting member; an internal thread is formed on the inner circumference of the upper part of the second annular connecting member;

[0010] The second convex edge is located below the first convex edge; the first convex edge blocks the second convex edge to prevent the second annular connecting member from escaping from the first annular connecting member;

[0011] The cover body includes an annular peripheral wall and a top cover located at the upper end of the peripheral wall; an external thread is formed on the outer peripheral surface of the lower part of the peripheral wall; the cover body is used to be installed in the second annular connecting piece; the internal thread of the second annular connecting piece is meshed with the external thread of the cover body; a notch is formed on the peripheral wall, and the notch is connected to the lower edge of the peripheral wall; a silicone sheet is fixed on the notch, and the notch is covered by the silicone sheet; a slit is formed on the silicone sheet to facilitate the catheter of the infusion port needle in the accommodating space to extend to the outside through the slit.

[0012] Preferably, a pressing block is installed on the lower side of the top cover of the cover body; the pressing block is used to press on the upper side of the infusion port needle.

[0013] Preferably, a cross-shaped groove is formed on the lower side of the pressing block for accommodating the infusion port needle therein.

[0014] Preferably, an elastic member is formed between the pressing block and the lower side of the top cover.

[0015] Preferably, the elastic member is a silicone tube.

[0016] Preferably, the silicone tube is divided into two and is arranged in parallel along the length direction of the pressing block.

[0017] The infusion port needle fixing device of the present application encloses the infusion port needle in the accommodation space surrounded by the base and the cover body, so that the infusion port needle will not be touched or rubbed by external objects, and the Shudie infusion port needle is not easy to fall out of the port seat. The infusion port needle fixing device of the present application uses a pressing block on the upper side of the infusion port needle to press the infusion port needle, further ensuring that the infusion port needle is not easy to fall out of the port seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the infusion port needle fixing device of the present application;

[0019] Figure 2 It is a schematic cross-sectional structure diagram of the infusion port needle fixing device of the present application;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the base of the infusion port needle fixing device of the present application;

[0021] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of a base;

[0022] Figure 5 , 6 This is a schematic diagram of the three-dimensional structure of the cover of the infusion port needle fixing device of the present application;

[0023] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure of the cover body. DETAILED DESCRIPTION

[0024] Below, the infusion port needle fixing device of the present application is described in detail with reference to the accompanying drawings.

[0025] The infusion port needle fixing device of the present application comprises: a base 10 and a cover body 20; the base 10 and the cover body 20 together form a receiving space for receiving the infusion port needle.

[0026] The base 10 includes a bottom sheet 11 , a first annular connecting member 12 , and a second annular connecting member 13 .

[0027] The bottom film 11 can be a medical plastic film or non-woven fabric, with medical adhesive formed on the lower side for bonding to the skin corresponding to the infusion port. The upper side of the bottom film 11 can form a port needle puncture indication point.

[0028] The first annular connector 12 can be made of hard plastic and fixed integrally to the upper side of the bottom sheet 11. A first flange 12b is formed on the outer periphery of the upper end of the first annular connector 12. A third flange 12a is formed on the outer periphery of the lower end of the first annular connector 12, and the first annular connector 12 is integrally fixed to the bottom sheet 11 through the third flange, for example, by bonding or thermal welding.

[0029] The second annular connector 13 can be made of hard plastic and is sleeved on the outer circumference of the first annular connector 12; a second convex edge 13a is formed on the inner circumference of the lower end of the second annular connector 13; an internal thread is formed on the inner circumference of the upper part of the second annular connector 13.

[0030] The second protruding edge 13 a is located below the first protruding edge 12 b ; the first protruding edge 12 b blocks the second protruding edge 13 a to prevent the second annular connecting member 13 from escaping from the first annular connecting member 12 .

[0031] The cover body 20 can be made of transparent hard plastic, including an annular peripheral wall and a top cover located at the upper end of the peripheral wall. An external thread is formed on the outer peripheral surface of the lower part of the peripheral wall. The cover body 20 is used to be installed in the second annular connector 13, and the lower edge of the peripheral wall of the cover body 20 abuts against the upper side of the first convex edge 12b of the first connector 12. The internal thread of the second annular connector 13 is meshed with the external thread of the cover body 20. A notch 24 is formed on the peripheral wall, and the notch 24 is connected to the lower edge of the peripheral wall; a silicone sheet 25 is fixed on the notch 24, and the notch 24 is covered by the silicone sheet 25; a slit 25a is formed on the silicone sheet 25 to facilitate the catheter of the infusion port needle in the accommodating space to extend to the outside through the slit 25a.

[0032] A pressing block 22 is installed on the lower side of the top cover of the cover body 20; the pressing block 22 is used to press on the upper side of the infusion port needle to prevent the infusion port needle from falling out.

[0033] A cross-shaped groove 22a corresponding to the top view shape of the infusion port needle is formed on the lower side of the pressing block 22 for accommodating the infusion port needle therein.

[0034] An elastic member 23 is formed between the pressing block 22 and the lower side of the top cover. The elastic member 23 is a silicone tube.

[0035] The silicone tube is divided into two and is arranged in parallel along the length direction of the pressing block 22. The elastic member 23 provides elastic pressing force for the pressing block 22 to press the infusion port needle.

[0036] When in use, the base and the cover are disassembled; the base is bonded to the skin position just above the infusion port seat through the adhesive on the lower side of the bottom film; then the infusion port needle is inserted into the infusion port seat after vertically piercing the bottom film; the cover is buckled on the base, and the lower edge of the cover is tightly in contact with the upper side of the first convex edge of the first annular connector, so that the infusion port needle is accommodated in the cross-shaped groove of the pressing block, and the catheter of the infusion port needle extends from the slit of the silicone film of the cover to the outside; the slit tightly clamps the catheter, so that the slit is closed and not connected to the outside; the second annular connector is operated so that the second annular connector is connected to the lower part of the cover by threading until the second convex edge is meshed with the first convex edge, and the cover is tightly fixed on the base. In this way, the infusion port needle is accommodated in the accommodation space surrounded by the base and the cover, and is not easily touched by external objects, so it is not easy to shake, and it is not easy to fall out of the infusion port seat.

Claims

1. An infusion port needle fixing device, characterized in that include: Base, cover; The base and the cover together form a receiving space for receiving the infusion port needle; The base comprises: a bottom sheet, a first annular connecting member, and a second annular connecting member; A medical adhesive is formed on the lower side of the bottom film; The first annular connecting member is integrally fixed to the upper side of the bottom sheet; a first convex edge is formed on the outer periphery of the upper end of the first annular connecting member; The second annular connecting member is sleeved on the outer circumference of the first annular connecting member; a second convex edge is formed on the inner circumference of the lower end of the second annular connecting member; an internal thread is formed on the inner circumference of the upper part of the second annular connecting member; The second convex edge is located below the first convex edge; the first convex edge blocks the second convex edge to prevent the second annular connecting member from escaping from the first annular connecting member; The cover body includes an annular peripheral wall and a top cover located at the upper end of the peripheral wall; an external thread is formed on the outer peripheral surface of the lower part of the peripheral wall; the cover body is used to be installed in the second annular connecting piece; the internal thread of the second annular connecting piece is meshed with the external thread of the cover body; a notch is formed on the peripheral wall, and the notch is connected to the lower edge of the peripheral wall; a silicone sheet is fixed on the notch, and the notch is covered by the silicone sheet; a slit is formed on the silicone sheet to facilitate the catheter of the infusion port needle in the accommodating space to extend to the outside through the slit.

2. The infusion port needle fixing device according to claim 1, characterized in that: A pressing block is installed on the lower side of the top cover of the cover body; the pressing block is used to press on the upper side of the infusion port needle.

3. The infusion port needle fixing device according to claim 2, characterized in that: A cross-shaped groove is formed on the lower side of the pressing block for accommodating the infusion port needle therein.

4. The infusion port needle fixing device according to claim 3, characterized in that: An elastic piece is formed between the pressing block and the lower side surface of the top cover.

5. The infusion port needle fixing device according to claim 4, characterized in that: The elastic member is a silicone tube.

6. The infusion port needle fixing device according to claim 5, characterized in that: The silicone tube is divided into two and is arranged in parallel along the length direction of the pressing block.

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