JP3029518U - Indwelling needle for infection prevention - Google Patents

Abstract

(57) [Abstract] [Problem] To prevent the outflow of blood when indwelling in a vein,
It is an indwelling needle that can prevent contamination and infection of diseases that are difficult to treat. A thin tubular puncture needle having a sharp tip,
The puncture needle 2 is fitted and fixed, and the mounting member 3 having an inner cavity communicating with the inner cavity of the puncture needle 2 and the rear end of the mounting member 3 are fitted and fixed, and a liquid-impermeable reservoir is formed. An indwelling member comprising a puncture tool 1 including an internally provided proximal end member 4, an indwelling needle 11, a mounting member 12 for fitting and fixing the indwelling needle 11 and having an inner cavity communicating with the inner cavity of the indwelling needle 11 and the like. 10 is provided separately, and the puncture needle 2 is used by being inserted into the indwelling needle 11 and the inner cavity of the attachment member 12.

Description

[Detailed description of the device]

[0001]

TECHNICAL FIELD The present invention relates to an improvement of an indwelling needle capable of preventing blood from flowing out and preventing contamination and infection when it is placed in a vein.

[0002]

2. Description of the Related Art In medical treatment, a procedure of puncturing a vein and indwelling a needle is often performed. At that time, blood fluid of a subject (patient) flows out from the proximal end of the indwelling needle. It has been one of the causes of infection of difficult-to-treat diseases by contaminating the clothing of the practitioner / subject, the equipment used for medical treatment, and the treatment site. Conventional indwelling needles do not have a mechanism to prevent the outflow of blood, and at present the labor required to remove and maintain cleanliness of the outflowing blood is required at a minimum. It cannot be prevented.

[0003]

The object of the present invention is to prevent the outflow of blood fluid from the proximal end of the indwelling needle and prevent the infection of a difficult-to-treat disease through the blood of the subject. It is to provide an indwelling needle that can prevent so-called iatrogenic infection.

[0004]

In order to achieve the above object, in the present invention, a puncture device including a puncture needle that guides an indwelling needle and an indwelling member including the indwelling needle are separately formed, A reservoir for blood that flows out is provided at the proximal end of the puncture device to prevent the scattering of blood.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Since an indwelling needle is used for medical treatment such as administration of a drug by means such as drip, it is formed into a tubular shape having a necessary diameter according to its use. It is difficult to puncture the human body directly with the indwelling needle because it is not appropriate to sharpen the tip because it is necessary to be indwelled. Usually, the puncture needle that guides the indwelling needle is used to puncture the human body. Also in the present invention, the puncture needle is fitted in the inner cavity of the indwelling needle, and the human body is punctured with the tip of the puncture needle protruding from the tip of the indwelling needle. In addition, the puncture needle has a thin tubular shape with a sharp tip to facilitate puncture into the human body, and blood flowing out when puncturing a vein does not scatter out of the human body through the lumen of the puncture needle. As described above, a liquid-impermeable reservoir is provided for allowing air to pass through the inner cavity of the proximal end.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing an outline of the embodiment, FIG. 2 is a side view of a puncture device, and FIG. 3 is an explanatory view of an indwelling member. The puncture device (1) is made of a hard synthetic resin and has a thin tubular puncture needle (2) with a sharp tip, and the puncture needle (2) is fitted and fixed, and the puncture needle (2) is also attached. The fitting member (3) provided with an inner lumen communicating with the rear end of the mounting member (3) is fitted and fixed to the rear end of the mounting member (3), and air is passed through the rear end, but liquid is impermeable. For example, a base member (4) which is a transparent cylindrical body in which a reservoir (5) formed by sponge-like high-molecular polymer is installed is provided. The indwelling member (10) is fitted with a cylindrical indwelling needle (11), the indwelling needle (11) is fitted and fixed, and an attachment member is provided which has an inner cavity communicating with the inner cavity of the indwelling needle (11). 12), a branch pipe (13) branching from the vicinity of the rear end of the attachment member (12) and having an inner cavity communicating with the inner cavity of the attachment member (12), and the branch pipe (13). A lid (14) fitted to the end portion and a fitting portion having a bottom portion formed by using, for example, silicone rubber or rubber, the opening portion being formed to be fittable to the rear end portion of the mounting member (12). It is composed of a plug (15). It is convenient to fix the indwelling needle (11) to a human body with an adhesive tape or the like by fixing a fixing wing-shaped object as shown in the figure at an appropriate position of the attachment member (12).

[0007]

EFFECTS OF THE INVENTION The indwelling needle for infection prevention according to the present invention has a fitting plug (15) fitted to the rear end of the attachment member (12), and the bottom of the fitting plug (15) is The puncture needle (2) is used so that the tip of the puncture needle (2) passes through the lumen of the attachment member (12) and projects from the lumen of the indwelling needle (11). If the vein is percutaneously punctured in this state, the blood that has flowed into the lumen of the puncture needle (2) will flow into the proximal member (4) via the lumen of the attachment member (3), Since the base member (4) is transparent, the situation can be sufficiently observed. The blood fluid that has reached the proximal end member (4) is blocked by the reservoir (5) that is permeable to air but impermeable to liquid, and does not flow out to the outside. Even if you are sick, you can prevent the risk of other infections. When the vein can be punctured, the puncture needle (2) is removed and only the indwelling needle (11) is placed in the vein. For example, in the case of infusion, it can be done through the branch pipe (13), or the injection solution or the like can be administered through the fitting stopper (15).

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of an embodiment,

FIG. 2 is a side view of the puncture device.

FIG. 3 is an explanatory view of an indwelling member.

[Description of sign]

 1 ・ ・ Puncture tool 2 ・ ・ Puncture needle 3 ・ ・ Mounting member 4 ・ ・ Base end member 5 ・ ・ Reservoir 10 ・ ・ Indwelling member 11 ・ ・ Indwelling needle 12 ・ ・ Mounting member 13 ・ ・ Branch pipe 14 ・ ・ Lid 15 ... Mating plug 16 ... Wings for fixing

Claims (1)

[Scope of utility model registration request] 1. A thin tubular puncture needle (2) having a sharp tip, and a lumen for fitting and fixing the puncture needle (2) and communicating with the lumen of the puncture needle (2) are provided. Mounting member (3)
And a base end member (4) which is a transparent cylindrical body fitted and fixed to the rear end of the mounting member (3) and having a storage part (5) in which air is passed but a liquid is impermeable to the rear end. ), A cylindrical indwelling needle (11), and the indwelling needle (1)
1) Fitting and fixing 1), and a mounting member (12) provided with a lumen communicating with the lumen of the indwelling needle (11), branched from the vicinity of the rear end of the mounting member (12), ) Has a branch pipe (13) provided with a lumen communicating with the lumen, a lid (14) fitted to the end of the branch pipe (13) and a bottom part,
The indwelling member (10) has an opening portion formed of a fitting plug (15) formed so as to be fitted to the rear end portion of the attachment member (12), and the puncture needle (2) includes the indwelling needle (11). ) And an attachment member (12) having an outer diameter that can be fitted into the inner cavity of the attachment member (12).