Disposable safe venous indwelling needle

Abstract

The utility model discloses a disposable safe venous indwelling needle which comprises an injection hose, a soft needle head and an adhesive patch, one end of the injection hose is communicated with the soft needle head, and the adhesive patch is arranged on the periphery of the soft needle head and the injection hose. According to the utility model, the protective shell, the sponge block, the placement cavity and the shielding belt are arranged on the adhesive patch, the protective shell between the breathable layer and the adhesive layer provides isolation protection for the mounting area of the soft needle head, and the sponge block and the placement cavity arranged on the concave surface of the protective shell provide buffering and accommodating space for the soft needle head; according to the soft needle head, the protection shell is arranged on the soft needle head, the multiple shielding belts are arranged, the protruding part of the needle head is isolated from the skin of a patient, when an external hard object touches the area where the soft needle head is located, the protection shell makes direct contact with the external hard object first, and the sponge block buffers impact generated by touch. The situation that the soft needle is directly contacted with external hard objects to increase pain of a patient is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to a disposable safe intravenous indwelling needle. Background Art

[0002] An intravenous catheter is composed of a stainless steel core, a soft outer sleeve and a plastic needle seat. During puncture, the outer sleeve and the needle core are inserted into the blood vessel together. After the sleeve is inserted into the blood vessel, the needle core is withdrawn, leaving only the soft outer sleeve in the blood vessel for infusion. The use of an intravenous catheter can relieve patients' pain, make them feel comfortable, and improve patient satisfaction and nursing quality. Intravenous catheters are mainly used in the medical field.

[0003] In the prior art, publication number CN214018774U discloses a disposable intravenous catheter with an anti-drop needle. The disposable intravenous catheter with an anti-drop needle connects a hard needle to a needle catheter, avoiding the nurse from connecting the hard needle to the needle catheter during use, saving workload, and facilitating the fixation of the intravenous catheter, preventing the intravenous needle from dropping off or becoming loose, thereby increasing safety.

[0004] However, since this type of intravenous needle does not have a protective structure for the needle, during actual use, the needle tip of the intravenous needle is prone to collision with hard objects, increasing the pain of the patient, so the safety factor of this type of intravenous needle still has room for improvement.

[0005] To this end, a disposable safety intravenous catheter is proposed, which has the advantage of preventing hard objects from touching the needle head, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a disposable safe intravenous indwelling needle.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a disposable safety intravenous catheter, comprising an injection hose, a soft needle and an adhesive patch, one end of the injection hose is connected to the soft needle, and the periphery of the soft needle and the injection hose is provided with an adhesive patch, the adhesive patch is formed by hot-pressing a breathable layer and an adhesive layer, and a protective shell is embedded in the middle of the breathable layer of the adhesive patch, both sides of the protective shell are provided with a frame, and the frame is buried between the breathable layer and the adhesive layer, a sponge block is embedded in the concave surface of the protective shell, and a placement cavity that is adapted to the contour of the soft needle and the injection hose is provided at the bottom of the sponge block, and parts of the soft needle and the injection hose are embedded in the placement cavity, the bottom surface of the adhesive layer is provided with two adhesive surfaces, and a number of shielding tapes are bonded between the two adhesive surfaces corresponding to the sponge blocks.

[0008] As a further description of the above technical solution: a plurality of air holes are evenly provided on the surface of the breathable layer of the adhesive patch, and the adhesive layer of the adhesive patch is made of a breathable patch material.

[0009] As a further description of the above technical solution: the surfaces of the breathable layer and the adhesive layer are both provided with U-shaped openings corresponding to the protective shell.

[0010] As a further description of the above technical solution: the cross-section of the protective shell is an arc-shaped structure, and the frames on both sides of the protective shell are strip-shaped structures.

[0011] As a further description of the above technical solution: several of the shielding strips are distributed below the protective shell, and the installation positions of the several shielding strips are respectively opposite to the raised parts of the soft needle and the injection hose.

[0012] As a further description of the above technical solution: a restraining tape is sewn onto the surface of the breathable layer of the adhesive patch, and an adhesive surface is provided on the side of the restraining tape facing the adhesive patch.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, a protective shell, a sponge block, a placement cavity and a shielding tape are provided on the adhesive dressing. The protective shell between the breathable layer and the adhesive layer provides isolation protection for the installation area of the soft needle, and the sponge block and the placement cavity provided on the concave surface of the protective shell provide a buffer and accommodation space for the soft needle. A plurality of shielding tapes are provided to isolate the raised part of the needle from the patient's skin. When an external hard object touches the area where the soft needle is located, the protective shell is the first to come into direct contact with the external hard object, and the sponge block cushions the impact caused by the contact. Compared with the existing technology, the direct contact between the soft needle and the external hard object is avoided, which increases the pain of the patient, thereby maximizing the safety factor of the intravenous catheter.

[0015] In the present invention, a double-layer adhesive dressing structure of an intravenous catheter is formed by a breathable layer and an adhesive layer. Since the adhesive layer is breathable and a plurality of breathable holes are evenly arranged on the surface of the breathable layer, the breathability requirements of the intravenous catheter during use can be met, which is conducive to improving the comfort of wearing the intravenous catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the disposable safety intravenous catheter of the utility model;

[0017] Figure 2 This is a back view of the disposable safety intravenous catheter of the utility model;

[0018] Figure 3 This is an adhesive application analysis diagram of the disposable safety intravenous catheter of the utility model.

[0019] Legend:

[0020] 1. Injection hose; 2. Soft needle; 3. Adhesive patch; 4. Protective shell; 5. Ventilation hole; 6. Adhesive surface; 7. Sponge block; 8. Placement cavity; 9. Frame; 10. Masking tape; 11. Breathable layer; 12. Adhesive layer; 13. Restraint tape. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] According to an embodiment of the utility model, a disposable safety intravenous catheter is provided.

[0023] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-3 As shown, the disposable safety intravenous catheter according to the embodiment of the present invention includes an injection hose 1, a soft needle 2 and an adhesive patch 3. One end of the injection hose 1 is connected to the soft needle 2, and the outer periphery of the soft needle 2 and the injection hose 1 is provided with an adhesive patch 3. The adhesive patch 3 is made of a breathable layer 11 and an adhesive layer 12 by hot pressing and compounding, and a protective shell 4 is embedded in the middle of the breathable layer 11 of the adhesive patch 3. Frames 9 are provided on both sides of the protective shell 4, and the frame 9 is buried between the breathable layer 11 and the adhesive layer 12. A sponge block 7 is embedded in the concave surface of the protective shell 4, and a placement cavity 8 is provided at the bottom of the sponge block 7 to match the contours of the soft needle 2 and the injection hose 1. Parts of the soft needle 2 and the injection hose 1 are embedded in the placement cavity 8, and the bottom surface of the adhesive layer 12 is provided with two parts of the adhesive surface 6, and the two parts of the adhesive surface 6, a plurality of shielding tapes 10 are bonded to the corresponding sponge blocks 7. The protective shell 4 between the breathable layer 11 and the adhesive layer 12 provides isolation protection for the installation area of the soft needle 2, and the sponge block 7 and the placement cavity 8 arranged on the concave surface of the protective shell 4 are used to provide a buffer and accommodation space for the soft needle 2. The setting of a plurality of shielding tapes 10 is used to isolate the raised part of the needle from the patient's skin. When an external hard object touches the area where the soft needle 2 is located, the protective shell 4 is the first to come into direct contact with the external hard object, and the sponge block 7 cushions the impact of the touch, avoiding the situation where the soft needle 2 is in direct contact with the external hard object and increasing the patient's pain, thereby improving the safety factor of the intravenous catheter. Among them, the sum of the thickness of the breathable layer 11 and the adhesive layer 12 is the same as the thickness of the traditional intravenous catheter patch to ensure the breathable effect;

[0024] In one embodiment, a plurality of air holes 5 are evenly provided on the surface of the breathable layer 11 of the adhesive dressing 3, and the adhesive layer 12 of the adhesive dressing 3 is made of a breathable dressing material. The breathable layer 11 and the adhesive layer 12 are used to form a double-layer adhesive dressing 3 structure for the intravenous catheter. Since the adhesive layer 12 is made of a breathable dressing and a plurality of air holes 5 are evenly provided on the surface of the breathable layer 11, the ventilation requirements of the intravenous catheter during use can be met, thereby increasing the comfort of wearing the intravenous catheter.

[0025] In one embodiment, the surfaces of the breathable layer 11 and the adhesive layer 12 are both provided with U-shaped openings corresponding to the protective shell 4 , so that the protective shell 4 can be installed easily.

[0026] In one embodiment, the cross-section of the protective shell 4 is an arc-shaped structure, and the frames 9 on both sides of the protective shell 4 are strip-shaped structures. Through the setting of the protective shell 4, a protective structure is provided for the puncture part of the soft needle 2.

[0027] In one embodiment, several shielding strips 10 are distributed under the protective shell 4, and the installation positions of the several shielding strips 10 are respectively opposite to the raised parts of the soft needle 2 and the injection hose 1. Through the setting of the several shielding strips 10, the raised part of the soft needle 2 is isolated from the patient's skin (the raised part is the connecting part of the soft needle 2 and the injection hose 1, or the hand-held part of the soft needle 2).

[0028] In one embodiment, a restraining tape 13 is sewn on the surface of the breathable layer 11 of the adhesive dressing 3, and an adhesive surface is provided on the side of the restraining tape 13 facing the adhesive dressing 3. The setting of the restraining tape 13 and the adhesive surface allows a part of the injection hose 1 to be bent and inserted into the restraining tape 13, and bonded and fixed to the adhesive surface, thereby increasing the storage effect of the injection hose 1 and preventing excess injection hose 1 from falling and causing blood to flow back or being entangled with external objects.

[0029] Working principle:

[0030] During use, the protective shell 4 between the breathable layer 11 and the adhesive layer 12 provides isolation protection for the installation area of the soft needle 2, and the sponge block 7 and the placement cavity 8 arranged on the concave surface of the protective shell 4 provide a buffer and accommodation space for the soft needle 2. A number of shielding belts 10 are set to isolate the raised part of the needle from the patient's skin. When an external hard object touches the area where the soft needle 2 is located, the protective shell 4 is the first to come into direct contact with the external hard object, and the sponge block 7 buffers the impact caused by the contact, avoiding the direct contact between the soft needle 2 and the external hard object to increase the patient's pain, thereby improving the safety factor of the intravenous needle. At the same time, the breathable layer 11 and the adhesive layer 12 are used to form a double-layer adhesive dressing 3 structure of the intravenous needle. Since the adhesive layer 12 is a breathable dressing and a number of air holes 5 are evenly opened on the surface of the breathable layer 11, it can meet the ventilation requirements of the intravenous needle during the use stage and increase the comfort of wearing the intravenous needle.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A disposable safety intravenous catheter, comprising an injection hose (1), a soft needle (2) and an adhesive patch (3), characterized in that: One end of the injection hose (1) is connected to a soft needle (2), and an adhesive patch (3) is provided on the periphery of the soft needle (2) and the injection hose (1), the adhesive patch (3) is formed by hot pressing a breathable layer (11) and an adhesive layer (12), and a protective shell (4) is embedded in the middle of the breathable layer (11) of the adhesive patch (3), and both sides of the protective shell (4) are provided with a frame (9), and the frame (9) is buried in the breathable layer (11) and the adhesive layer (12). 2), a sponge block (7) is embedded in the concave surface of the protective shell (4), and a placement cavity (8) adapted to the contours of the soft needle (2) and the injection hose (1) is provided at the bottom of the sponge block (7), and parts of the soft needle (2) and the injection hose (1) are embedded in the placement cavity (8), and the bottom surface of the adhesive layer (12) is provided with two adhesive surfaces (6), and a plurality of shielding strips (10) are bonded between the two adhesive surfaces (6) corresponding to the sponge block (7).

2. The disposable safety intravenous catheter according to claim 1, characterized in that: A plurality of air holes (5) are evenly arranged on the surface of the air permeable layer (11) of the adhesive patch (3), and the adhesive layer (12) of the adhesive patch (3) is made of an air permeable patch material.

3. The disposable safety intravenous catheter according to claim 1, characterized in that: The surfaces of the breathable layer (11) and the adhesive layer (12) are both provided with openings of a U-shaped structure corresponding to the protective shell (4).

4. The disposable safety intravenous catheter according to claim 1, characterized in that: The cross section of the protective shell (4) is an arc-shaped structure, and the frames (9) on both sides of the protective shell (4) are both strip-shaped structures.

5. The disposable safety intravenous catheter according to claim 1, characterized in that: The plurality of shielding strips (10) are distributed below the protective shell (4), and the installation positions of the plurality of shielding strips (10) are respectively opposite to the raised parts of the soft needle (2) and the injection hose (1).

6. The disposable safety intravenous catheter according to claim 1, characterized in that: A binding belt (13) is sewn onto the surface of the breathable layer (11) of the adhesive patch (3), and an adhesive surface is provided on the side of the binding belt (13) facing the adhesive patch (3).

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