Infusion needle for subcutaneous infusion

Abstract

The infusion needle comprises a needle seat and two outer fins which are integrally formed, the two outer fins are located on the two sides of the needle seat, and the two outer fins are switched between the transverse flattening state and the longitudinal erecting state relative to the needle seat; the two inner fins are fixedly arranged on the two sides of the bottom of the needle base, and when the two outer fins are transversely unfolded relative to the needle base, the two inner fins are embedded into the embedding openings formed in the two outer fins respectively; the L-shaped needle tube is fixedly arranged on the needle seat and comprises a tip part and a tail part, and the tip part is perpendicular to the bottom of the needle seat; and one end of the infusion tube is sleeved at the tail part of the L-shaped needle tube. According to the utility model, the two outer fins can be turned upwards to form an operating handle, so that the L-shaped needle tube can be conveniently clamped by fingers to pierce the skin, the operation is convenient and fast, and the fitting property is good; and integrated design is adopted, one-time injection molding can be achieved, structural components are reduced, the working procedure is simplified, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to subcutaneous infusion technical field, concretely is a kind of infusion needle for subcutaneous infusion. BACKGROUND

[0002] In clinical infusion field, liquid medicine infusion is often carried out using indwelling needle, and such indwelling needle is mostly steel needle. During indwelling process, the patient feels uncomfortable due to the hard material of steel needle. Meanwhile, the patient's slight movement is inevitable, such as the pulling action of skin or muscle in the area of indwelling needle, which may cause the steel needle to shift out or the moving needle tip to scratch the subcutaneous tissue or blood vessel. In order to avoid the above risks, a soft needle for infusion made of high polymer material is developed. In clinical use, the steel needle with the soft needle for infusion is inserted into the patient's subcutaneous tissue or blood vessel, and then the steel needle is removed, and the soft needle for infusion is left in the subcutaneous tissue or blood vessel, and the liquid medicine enters the human body through the soft needle via the infusion pipeline.

[0003] A utility model patent with patent number 201521133907.1 discloses a soft needle for infusion, which comprises a connecting cover, a silica gel plug, a needle tube fixing seat, a soft rubber sheet, a rivet and a soft needle tube. The utility model has the advantages of compact and stable structure, easy positioning during adhesive curing, convenient assembly, low production cost, high production efficiency and high yield. However, the components need to be assembled for use, which is troublesome to use, and the small components are inconvenient to operate. Therefore, we propose an infusion needle for subcutaneous infusion. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an infusion needle for subcutaneous infusion to solve the problems in the above background technology. To achieve the above purpose, the utility model provides the following technical scheme:

[0005] An infusion needle for subcutaneous infusion, characterized in that it comprises:

[0006] An integrally formed needle seat (1) and two outer flaps (2), the two outer flaps (2) are located on both sides of the needle seat (1), and the two outer flaps (2) are switched between the horizontal flat state and the vertical standing state relative to the needle seat (1);

[0007] Two inner flaps (9) fixedly arranged on both sides of the bottom of the needle seat (1), when the two outer flaps (2) are horizontally flattened relative to the needle seat (1), the two inner flaps (9) are respectively embedded in the embedding openings formed in the two outer flaps (2);

[0008] L-shaped needle tube (3) is fixedly arranged on the needle seat (1), the L-shaped needle tube (3) includes a tip (7) and a tail (8), the tip (7) is perpendicular to the bottom of the needle seat (1) or perpendicular to the horizontally flattened outer wing piece (2);

[0009] Infusion tube (4), one end of the infusion tube (4) is sleeved on the tail (8) of the L-shaped needle tube (3).

[0010] As a preferred technical solution: the bottom of the two inner wing pieces (9) and the bottom of the two outer wing pieces (2) when horizontally flattened are flush with the bottom of the needle seat (1).

[0011] As a preferred technical solution: the upper end of the connection between the two outer wing pieces (2) and the needle seat (1) is provided with a V-shaped groove (5).

[0012] As a preferred technical solution: the rear end of the needle seat (1) is laterally inwardly provided with a cylindrical groove (6), the tail (8) of the L-shaped needle tube (3) is located in the cylindrical groove (6), and the infusion tube (4) sleeved on the tail (8) of the L-shaped needle tube (3) is fixedly inserted into the cylindrical groove (6).

[0013] As a preferred technical solution: the connection between the tail (8) and the tip (7) of the L-shaped needle tube (3) is in a circular arc structure.

[0014] As a preferred technical solution: the end of the two outer wing pieces (2) is in a circular arc structure.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The two outer wing pieces can be turned up to form an operating handle, which is convenient for finger clamping to implement L-shaped needle tube piercing into the skin, and the integrated design can be one-time injection molding, the components are reduced, the process is simplified, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The overall structure schematic diagram of the infusion needle for subcutaneous infusion is provided.

[0018] Figure 2 The bottom structure schematic diagram of the infusion needle for subcutaneous infusion is provided.

[0019] Figure 3 For Figure 2 A-A sectional view.

[0020] Figure 4 The outer wing piece turning up structure schematic diagram of the infusion needle for subcutaneous infusion is provided.

[0021] Figures 5 to 8 The utility model provides a for subcutaneous infusion infusion needle use process change state's three -dimensional structure drawing.

[0022] In the drawing: 1 - needle holder, 2 - outer wing piece, 3 - L type needle tube, 4 - infusion tube, 5 - V-shaped groove, 6 - cylindrical groove, 7 - sharp part, 8 - tail part, 9 - inner wing piece. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range of protection of the utility model.

[0024] Please refer to Figures 1 to 8 The utility model provides a technical scheme: a kind of infusion needle for subcutaneous infusion, including needle holder 1, two outer wing pieces 2, two inner wing pieces 9, L type needle tube 3 and infusion tube 4.

[0025] Two the outer wing pieces 2 are arranged at the left and right sides of the bottom of needle holder 1;The root of two outer wing pieces 2 can be bent relative to needle holder 1, so that two outer wing pieces 2 can be switched between horizontal flattening (see Figure 5 ) and vertical standing (see Figure 8 ) two states during use.

[0026] Two inner wing pieces 9 are fixedly arranged at the left and right sides of the bottom of needle holder 1. Two outer wing pieces 2 are provided with embedding port 8 at the positions corresponding to two inner wing pieces 9, and the embedding port 8 is used for giving way to inner wing piece 9. When two outer wing pieces 2 are horizontally flattened relative to needle holder 1, two inner wing pieces 9 are respectively embedded in the embedding port 8 provided in two outer wing pieces 2.

[0027] L type needle tube 3 is fixedly arranged on needle holder 1, and L type needle tube 3 includes vertically arranged sharp part 7 and horizontally arranged tail part 8, and the sharp part 7 is perpendicular to the bottom of needle holder 1 or the horizontally flattened outer wing piece 2. One end of infusion tube 4 is sleeved on the tail part 8 of L type needle tube 3 and leads out the rear end of needle holder 1.

[0028] The infusion needle for subcutaneous infusion provided in the embodiment can turn up two outer wing pieces 2 upward to form operating handle, and it is convenient to clamp with fingers to implement that the sharp part 7 of L type needle tube 3 pierces into skin, and then liquid medicine infusion is carried out through infusion tube 4;The embodiment adopts integrated design, can be injection molded once, and the production cost is low, and the use is convenient.

[0029] As a preferred embodiment, the bottom of the two inner flaps 9 and the bottom of the two outer flaps 2 are flush with the bottom of the needle holder 1, and after the L-shaped needle tube 3 pierces the skin, the inner flaps 9 and the two outer flaps 2 are flat against the skin, so as to facilitate positioning and pasting the L-shaped needle tube 3 and prevent the L-shaped needle tube 3 from falling off.

[0030] As a preferred embodiment, the upper end of the connection between the outer flaps 2 and the needle holder 1 is provided with a V-shaped groove 5, which facilitates the upward turning of the two outer flaps 2.

[0031] As a preferred embodiment, a cylindrical groove 6 is formed in the rear end of the needle holder 1, the tail 8 of the L-shaped needle tube 3 is located in the cylindrical groove 6, and the infusion tube 4 sleeved on the tail 8 of the L-shaped needle tube 3 is fixedly inserted into the cylindrical groove 6, so that the infusion tube 4 is fixedly connected with the needle holder 1, thereby improving the stability of the connection between the infusion tube 4 and the L-shaped needle tube 3 and preventing them from being separated during infusion.

[0032] As a preferred embodiment, the connection between the tail 8 and the sharp end 7 of the L-shaped needle tube 3 is in a circular arc structure, so that the L-shaped needle tube 3 is not easy to be broken during re-bending.

[0033] As a preferred embodiment, the end of the outer flaps 2 is in a circular arc structure, which facilitates the pinching of the outer flaps 2 by fingers and also avoids scratching.

[0034] It should be noted that the relational terms herein such as first and second and the like are used only to differentiate one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In addition, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed or inherent to such a process, method, article or device.

[0035] Although the embodiments of the present application have been shown and described, it should be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An infusion needle for subcutaneous infusion, characterized in that, include: The needle base (1) and two outer wing pieces (2) are integrally formed. The two outer wing pieces (2) are located on both sides of the needle base (1), and the two outer wing pieces (2) switch between two states of horizontal flattening and vertical standing relative to the needle base (1). Two inner wing pieces (9) are fixedly set on the bottom sides of the needle seat (1). When the two outer wing pieces (2) are horizontally unfolded relative to the needle seat (1), the two inner wing pieces (9) are respectively fitted into the fitting openings opened on the two outer wing pieces (2). L-shaped needle tube (3), the L-shaped needle tube (3) is fixedly mounted on the needle seat (1), the L-shaped needle tube (3) includes a tip (7) and a tail (8), the tip (7) is perpendicular to the bottom of the needle seat (1) or perpendicular to the horizontally flattened outer wing (2). An infusion tube (4) is attached to the tail (8) of an L-shaped needle tube (3).

2. The infusion needle for subcutaneous infusion according to claim 1, characterized in that: The bottoms of the two inner flaps (9) and the two outer flaps (2) when horizontally unfolded are flush with the bottom of the needle seat (1).

3. An infusion needle for subcutaneous infusion according to claim 1, characterized in that: The upper end of the connection between the two outer winglets (2) and the needle seat (1) is provided with a V-shaped groove (5).

4. The infusion needle for subcutaneous infusion according to claim 1, characterized in that: The needle holder (1) has a cylindrical groove (6) extending laterally inward at its rear end. The tail (8) of the L-shaped needle tube (3) is located in the cylindrical groove (6), and the infusion tube (4) fitted onto the tail (8) of the L-shaped needle tube (3) is fixedly inserted into the cylindrical groove (6).

5. The infusion needle for subcutaneous infusion according to claim 1, characterized in that: The connection between the tail (8) and the tip (7) of the L-shaped needle (3) is an arc-shaped structure.

6. The infusion needle for subcutaneous infusion according to claim 1, characterized in that: The ends of the two outer winglets (2) are arc-shaped.

7. The infusion needle for subcutaneous infusion according to claim 1, characterized in that: The two inner flaps (9) are integrally formed on both sides of the bottom of the needle seat (1).

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