CN217286734U - A pressure-releasing and skin-friendly butterfly wing airtight peripheral vein indwelling needle for preventing acupuncture injury and its pressure-releasing skin-friendly structure - Google Patents

Abstract

The utility model discloses a pressure-releasing and skin-friendly butterfly wing airtight peripheral vein indwelling needle for preventing needle stick injuries and a pressure-releasing skin-friendly structure, belonging to the technical field of medical instruments and medical consumables. An airtight anti-needle puncture peripheral vein indwelling needle with a skin-friendly butterfly wing, which is provided with a needle part, a butterfly wing part, a tube part and an end interface connected in sequence; The lamination is fixed and connected to form a layered structure. The advantages of the utility model are as follows: the butterfly wing of the present utility model adds a pressure-relieving layer and a skin-friendly layer, which are integrated with the base layer, which can protect the local skin, absorb the sweat of the skin under the peripheral indwelling needle wing, and keep the local skin dry. When the skin at the puncture site is slightly swollen, it can act as a buffer to decompress the area and avoid pressure injuries related to medical devices. Simplify the operation of nurses, reduce local pollution, puncture and pressure prevention in one step, and improve the work efficiency of nurses' puncture.

Description

A pressure-releasing and skin-friendly butterfly wing airtight peripheral vein indwelling needle for preventing needlestick injury and its pressure-releasing and skin-friendly structure

technical field

The utility model relates to a pressure-releasing and skin-friendly butterfly wing airtight peripheral vein indwelling needle for preventing needle stick injuries and a pressure-releasing skin-friendly structure, belonging to the technical field of medical equipment and medical consumables.

Background technique

According to the 2014 version of the "Technical Operational Specification for Intravenous Treatment Nursing", the peripheral venous indwelling needle should be replaced every 72-96 hours. At present, the closed peripheral vein indwelling needles commonly used in clinical practice to prevent needle stick injuries are designed with anti-slip bumps on the needle wings to avoid slippage and displacement after fixation of the indwelling needle during puncture. But this design also has drawbacks.

With the aging of the society, the number of elderly patients gradually increases, the skin of elderly patients gradually degenerates, the peripheral function gradually deteriorates, the permeability of blood vessels is usually large, and local subcutaneous tissue circulation is prone to poor circulation after intravenous rehydration, resulting in non-extravasation. For edema, the indwelling needle under the transparent skin membrane for fixation is prone to local skin moisture due to sweating. In addition, due to the reduced sensory ability of elderly patients, the patient should not feel the edema under the needle wing, and the nurse is not easy to find it, which leads to an increase in the tension of the transparent skin membrane, which leads to the medical device-related pressure injury related to the needle wing of the peripheral vein indwelling needle.

Medical device related pressure injuries (MDRPI): refers to pressure injuries caused by the use of medical devices used for diagnosis or treatment, and the shape of the injured part is usually consistent with the shape of the medical device.

The treatment cost of pressure injury is high, and my country spends up to 550,000 yuan on pressure injury treatment every year. The high cost of treatment and stress injuries cause physical and psychological distress, prolonging the recovery period and length of hospital stay. The domestic and international pressure injury guidelines agree that prevention is better than cure, which requires us to use scientific and appropriate means to prevent pressure injury caused by indwelling needle wings. To avoid or reduce the risk factors for pressure injury: pressure, moisture, etc.

At present, the commonly used closed peripheral vein indwelling needles to prevent needle stick injuries are designed with anti-slip bumps on the needle wings to avoid slippage and displacement after fixation during the puncture of the indwelling needle. Identify different models. Existing technology cannot avoid pressure injuries.

Utility model content

The technical problem to be solved by the utility model is: to provide a closed peripheral venous indwelling needle for preventing needle puncture wounds with slow pressure and skin-friendly butterfly wings, and a slow-pressure skin-friendly structure of the butterfly wing of the venous indwelling needle.

In order to achieve the above purpose, the present utility model adopts the following technical solutions.

An airtight anti-needle puncture peripheral vein indwelling needle with a skin-friendly butterfly wing, which is provided with a needle part, a butterfly wing part, a tube part and an end interface connected in sequence; The lamination is fixed and connected to form a layered structure.

The pressure-releasing layer is an elastic medical polymer material layer; the skin-friendly layer is a medical polymer gel, and the base layer is a medical hard polymer material layer.

The medical polymer material is polyurethane foam; the medical polymer gel is sodium carboxymethyl cellulose gel; the medical hard polymer material is medical plastic. Both polyurethane foam and sodium carboxymethyl cellulose gel can absorb a small amount of exudation. Both sodium carboxymethyl cellulose gel and polyurethane foam dressing can prevent pressure injuries. Polyurethane foam and sodium carboxymethyl cellulose The gel can protect the skin, reduce the edema of the wound, reduce the irritation to the wound, and buffer the pressure.

The utility model preferably uses sodium carboxymethyl carboxymethyl cellulose gel material as the skin-friendly layer material: it can absorb a small amount of sweat under the needle wing, and at the same time, sodium carboxymethyl cellulose is used as a membrane material, which can be used for skin grinding surgical wounds and traumatic wounds. Animal model studies have shown that the membrane prevents wound infection, controls the exudation of tissue fluid on the wound surface, and has the effect of rapid wound healing. And have the effect of reducing edema and wound irritation.

In the present invention, polyurethane foam is preferably used as the pressure-relieving layer material: when the local area around the puncture point is slightly swollen, it can play a buffering effect and relieve the pressure effect of the needle wing on the skin. And a small amount of vertical absorption of sweat under the needle wing can keep the local skin under the needle wing dry. At the same time, the polyurethane foam layer can play a non-slip effect. Avoid holding the needle stably during operation.

The base layer, the skin-friendly layer and the pressure-releasing layer are fixedly connected with a medical grade adhesive.

Preferably, the skin-friendly layer is located in the middle of the base layer and the pressure-releasing layer. It can also be designed such that the pressure relief layer is located in the middle of the base layer and the skin-friendly layer.

The surface of one or more of the base layer, the skin-friendly layer, and the pressure-releasing layer is a plane or a curved surface. The curved surface can be composed of several convex and concave surfaces, which can increase friction, prevent slippage, and increase the surface area, which is more conducive to absorbing tissue fluid or local sweat on the patient's wound.

Several micropores are opened on the pressure-releasing layer and/or the skin-friendly layer. The micropores can act as a siphon and accelerate the absorption of tissue fluid from the patient's wound.

Preferably, the skin-friendly layer and the pressure-releasing layer are divided into at least two independent blocks, and the sum of the areas of each block is approximately equal to the area of the base layer. For example, independent blocks are used for the two wing parts of the butterfly wing, and independent blocks are used for the central position of the butterfly wing. Preferably, it is divided into wing-shaped blocks on both sides and a T-shaped block in the middle, and the shapes of each block are regular geometric figures and their combined figures. The design of the independent blocks is convenient for medical staff to hold the needle, without tearing the pressure-relief layer and the skin-friendly layer, and without affecting the needle holding. The gap between each block can also increase the absorption rate of the patient's wound tissue fluid. When using this integrated butterfly-shaped needle wing with a pressure-relieving layer, a skin-friendly layer, and a three-in-one base layer, it can be directly fixed after a successful puncture, reducing the pollution caused by the decompression pad after the puncture, and avoiding excessive complex procedures and increase the workload of nurses.

In the second aspect of the present utility model, the present utility model provides a pressure-releasing skin-friendly structure of the butterfly wing portion of the venous indwelling needle, which consists of a skin-friendly layer and a pressure-releasing layer that are fixedly connected to form a layered structure. The fixed connection method is medical adhesive bonding or other common fixed forms.

The pressure-releasing layer is an elastic medical polymer material layer; the skin-friendly layer is a medical polymer gel layer; preferably, the medical polymer material is polyurethane foam; the medical polymer gel is carboxylate Sodium methylcellulose gel; further preferably, the surface of the pressure-releasing layer and/or the skin-friendly layer is a plane or a curved surface; most preferably, there are several pressure-releasing layers and/or skin-friendly layers on the Microporous.

The butterfly wing structure can be applied to the production and manufacture of existing indwelling needles, replaces the butterfly wings of the prior art, has the technical effects of relieving pressure, absorbing tissue fluid on the patient's wound surface, and avoiding or reducing the high-risk factor of pressure injury: pressure , moisture, etc., so as to solve the problem of pressure injury during infusion therapy.

The utility model relates to a peripheral vein indwelling needle which applies sodium carboxymethyl cellulose gel and polyurethane foam materials to a closed peripheral vein indwelling needle for preventing needle stick injuries, which is a butterfly needle wing three-in-one integrated needle wing. By absorbing the moisture and sweat under the patient's polyethylene needle wing, the skin-sticking surface keeps the skin dry under the needle wing of the peripheral indwelling needle, and protects and relieves the skin's skin-friendly effect through sodium carboxymethyl cellulose and foam dressing. , so as to disperse the pressure of the anti-skid bumps on the needle wing to prevent pressure damage of medical devices. It can greatly reduce the medical device pressure injury caused by the peripheral indwelling needle, avoid the additional medical expenses caused by the pressure injury, reduce the pain and discomfort caused by the pressure injury, and comprehensively improve the patient's physical and mental recovery and high-quality life. .

The use method of the utility model: in the operation process, the nurse selects the puncture point, pinch the needle wing by hand for puncture, send the peripheral indwelling needle into the blood vessel, withdraw the stainless steel needle core, and fix it with a transparent skin film without tension. Nurses should pay attention to the needle wing at any time. If there is any phenomenon of water absorption and swelling of the skin-friendly layer, it can be observed, and it can be detected and removed in time.

The advantages of the utility model are as follows: the butterfly wing part of the utility model adds a pressure-relieving layer and a skin-friendly layer, which are integrated with the base layer, which increases the skin-friendly property of the indwelling needle, can protect the local skin, and can absorb the lower part of the peripheral indwelling needle needle wing. Sweat from the skin keeps the skin dry locally. When the skin at the puncture site is slightly swollen, it can act as a buffer to decompress the area and avoid pressure injuries related to medical devices. The butterfly needle wing with the three-in-one pressure relief layer, skin-friendly layer and base layer can simplify the operation process of nurses, avoid the steps of protection and decompression such as putting pressure relief pads after nurses puncture, reduce local pollution, puncture and pressure prevention in one step, and improve nurses Puncture efficiency.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

The accompanying drawings described here are used to provide further understanding of the present invention and constitute a part of the present application. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

FIG. 1 shows a schematic diagram of the overall structure of Embodiment 1

FIG. 2 shows the A-A sectional view of FIG. 1

FIG. 3 shows a schematic diagram of the overall structure of Embodiment 2

FIG. 4 shows the A-A sectional view of FIG. 3

FIG. 5 shows a schematic diagram of the overall structure of Embodiment 3

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, It is constructed and operated in a particular orientation and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. "First", "second" and similar words used in the description of the patent application for this utility model and the claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, "a" or "an" and the like do not denote a quantitative limitation, but rather denote the presence of at least one.

Example 1

Referring to Fig. 1 and Fig. 2, an airtight anti-needle-stick indwelling needle for peripheral veins with skin-friendly butterfly wings has a needle portion, a butterfly wing portion, a tube portion and an end interface connected in sequence, and the butterfly wings of the indwelling needle are The part consists of a base layer 1, a skin-friendly layer 2 and a pressure-releasing layer 3 that are fixedly connected to form a layered structure.

The pressure-releasing layer 3 is an elastic medical polymer material layer; the skin-friendly layer 2 is a medical polymer gel, and the base layer is a medical hard polymer material layer. The medical polymer material is polyurethane foam; the medical polymer gel is sodium carboxymethyl cellulose gel; the medical hard polymer material is medical plastic.

The base layer 1 , the skin-friendly layer 2 and the pressure-relief layer 3 are fixedly connected with a medical grade adhesive.

The skin-friendly layer 2 is located in the middle of the base layer 1 and the pressure-releasing layer 3 . The pressure relief layer is in direct contact with the patient's skin surface.

The surfaces of the base layer 1 , the skin-friendly layer 2 and the pressure-releasing layer 3 are flat surfaces.

The skin-friendly layer 2 and the pressure-releasing layer 3 are divided into three independent blocks, specifically in this embodiment, including the wing-shaped block 4 on both sides and the T-shaped block 5 in the middle (the shape is matched with the corresponding area of the butterfly wing). That is), they are respectively bonded and fixedly connected with the base layer, the sum of the area of each block is approximately equal to the area of the base layer 1, and there is a gap between each block, which does not affect the needle-holding operation of medical staff.

The butterfly wing part of the utility model is provided with a pressure-relieving layer and a skin-friendly layer, which are integrated with the base layer, which increases the skin-friendly property of the indwelling needle, can protect the local skin, can absorb the sweat of the skin under the needle wing of the peripheral indwelling needle, and maintain the local skin. dry. When the skin at the puncture site is slightly swollen, it can act as a buffer to decompress the area and avoid pressure injuries related to medical devices. The butterfly needle wing with the three-in-one pressure relief layer, skin-friendly layer and base layer can simplify the operation process of nurses, avoid the steps of protection and decompression such as putting pressure relief pads after nurses puncture, reduce local pollution, puncture and pressure prevention in one step, and improve nurses Puncture efficiency.

Example 2

Referring to Figures 3 and 4, a closed needle-stick-resistant peripheral vein indwelling needle with a skin-friendly butterfly wing for slowing pressure has a needle portion, a butterfly wing portion, a tube portion and an end interface that are connected in sequence, and the butterfly wing of the indwelling needle is provided. The part consists of a base layer 1, a skin-friendly layer 2 and a pressure-releasing layer 3 that are fixedly connected to form a layered structure.

The pressure-releasing layer 3 is an elastic medical polymer material layer; the skin-friendly layer 2 is a medical polymer gel, and the base layer is a medical hard polymer material layer. The medical polymer material is polyurethane foam; the medical polymer gel is sodium carboxymethyl cellulose gel; the medical hard polymer material is medical plastic.

The base layer 1 , the skin-friendly layer 2 and the pressure-relief layer 3 are fixedly connected with a medical grade adhesive.

The skin-friendly layer 2 is located in the middle of the base layer 1 and the pressure-releasing layer 3 . The pressure relief layer is in direct contact with the patient's skin surface.

The surface of the pressure-relief layer 3 is a curved surface, and the curved surface is composed of multiple concave and convex surfaces, which can increase the surface area, increase the absorption of body fluids, and at the same time increase the anti-slip performance, which is convenient for the relative position of the indwelling needle to be fixed on the patient's body surface.

In this embodiment, the pressure-relief layer 3 is provided with a plurality of micropores 6, and the micropores can increase the permeability of the patient's body fluid and accelerate the absorption rate of the body fluid.

The skin-friendly layer 2 and the pressure-releasing layer 3 are divided into three independent blocks, specifically in this embodiment, including the wing-shaped block 4 on both sides and the T-shaped block 5 in the middle (the shape is matched with the corresponding area of the butterfly wing). That is), they are respectively bonded and fixedly connected with the base layer, the sum of the area of each block is approximately equal to the area of the base layer 1, and there is a gap between each block, which does not affect the needle-holding operation of medical staff.

The butterfly wing part of the utility model is provided with a pressure-relieving layer and a skin-friendly layer, which are integrated with the base layer, which increases the skin-friendly property of the indwelling needle, can protect the local skin, can absorb the sweat of the skin under the needle wing of the peripheral indwelling needle, and maintain the local skin. dry. When the skin at the puncture site is slightly swollen, it can act as a buffer to decompress the area and avoid pressure injuries related to medical devices. The butterfly needle wing with the three-in-one pressure relief layer, skin-friendly layer and base layer can simplify the operation process of nurses, avoid the steps of protection and decompression such as putting pressure relief pads after nurses puncture, reduce local pollution, puncture and pressure prevention in one step, and improve nurses Puncture efficiency.

Example 3

Referring to FIG. 5 , a pressure-releasing skin-friendly structure of the butterfly wing portion of the intravenous indwelling needle is composed of a skin-friendly layer 2 and a pressure-releasing layer 3 that are bonded and connected by medical glue to form a layered structure.

The pressure-releasing layer 3 is an elastic medical polymer material layer; the skin-friendly layer 2 is a medical polymer gel layer; the medical polymer material is polyurethane foam; the medical polymer gel is carboxymethyl Cellulose sodium gel.

The pressure-releasing skin-friendly structure can be cut into a suitable shape as required, and fixed on the surface of the butterfly wing of the intravenous indwelling needle through medical glue, so that the pressure-releasing layer 3 faces the side of the patient's skin.

Specifically in this embodiment, the pressure-releasing skin-friendly structure is cut into three parts, including the wing-shaped blocks on both sides and the T-shaped block in the middle, and they are respectively adhered to the base layer 1 of the butterfly wing of the intravenous indwelling needle. It can be fixed and connected, the sum of their areas is approximately equal to the area of the base layer 1, and there are gaps between each block, which does not affect the needle-holding operation of medical staff.

This embodiment can be cut into a suitable shape and then bonded and fixed on the butterfly wing of the existing vein indwelling needle to form a butterfly needle wing with a three-in-one pressure relief layer, a skin-friendly layer and a base layer of the butterfly wing, which can simplify the nurse. The operation process avoids the steps of protection and decompression such as putting a decompression pad after the nurse puncture, reducing local pollution, and preventing the puncture pressure in one step, improving the work efficiency of the nurse puncture.

The series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, they are not intended to limit the protection scope of the present invention, and those skilled in the art can design many other modifications and embodiments, such modifications and implementations are intended to fall within the scope and spirit of the principles disclosed herein. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the present disclosure, drawings and claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

In a word, the above are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.

Claims (5)

1. The utility model provides a needle is kept somewhere to airtight needle-prick prevention of gentle pressure close skin butterfly wing traumas peripheral vein, has the needle portion, butterfly wing portion, pipe portion and the terminal interface that connect gradually, its characterized in that: the butterfly wing part of the indwelling needle is fixedly connected with a layer structure by a basal layer, a skin-friendly layer and a pressure-release layer; the skin-friendly layer and the pressure-release layer are divided into wing-shaped blocks at two sides and a T-shaped block in the middle, and the sum of the areas of the blocks is smaller than or equal to the area of the substrate layer; the surface of one or more of the substrate layer, the skin-friendly layer and the slow-pressing layer is a curved surface; the slow pressing layer and/or the skin-friendly layer are/is provided with a plurality of micropores; the pressure-relieving layer is an elastic medical polymer material layer; the skin-friendly layer is medical polymer gel, and the basal layer is a medical hard polymer material layer.

2. The closed anti-needle-stick injury peripheral vein indwelling needle of the slow-pressing skin-friendly butterfly wing according to claim 1, is characterized in that: the medical high polymer material is polyurethane foam; the medical polymer gel is sodium carboxymethyl cellulose gel; the medical hard high polymer material is medical plastic.

3. The closed anti-needle-stick injury peripheral vein indwelling needle of the gentle-pressure skin-friendly butterfly wing according to claim 1 or 2, is characterized in that: the substrate layer, the skin-friendly layer and the slow-pressing layer are fixedly connected through medical adhesive.

4. The closed anti-needle-stick injury peripheral vein indwelling needle of the gentle-pressure skin-friendly butterfly wing, according to claim 3, is characterized in that: the skin-friendly layer is positioned between the basal layer and the slow-pressing layer.

5. The utility model provides a gentle pressure close skin structure of butterfly alar part of needle is kept somewhere to vein which characterized in that: the skin-friendly layer and the pressure-release layer are fixedly connected to form a layer structure; the pressure-relieving layer is an elastic medical polymer material layer; the skin-friendly layer is a medical polymer gel layer; the medical high polymer material is polyurethane foam; the medical polymer gel is sodium carboxymethyl cellulose gel; the surface of the slow-pressing layer and/or the skin-friendly layer is a plane or a curved surface; and a plurality of micropores are arranged on the slow-pressing layer and/or the skin-friendly layer.

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