JPH01212568A - Protector for needle pipe of needle pipe assembly - Google Patents

Abstract

PURPOSE:To make it easier to stow a needle after use by providing an introduction guide section in a tongue piece form extended outward to the axial core direction from the end face of an entrance to a protector. CONSTITUTION:An introduction guide surface 2a extended outward from the end face 1 of an entrance to a protector forms a slant parting from the axial core line as it is apart outward in the axial core direction. For example, the slant is composed of three triangular planes 21, 22 and 23 while being combined each other wherein both side planes 21 and 23 become wider in width, on the contrary the middle plane 22 becomes narrower as they come close to the entrance of the protector. When the tip end section of a needle pipe (n) is rested on the guide surface so as to be guided in such a way that the tip end direction of the needle pipe is aligned with the inside of the protector as shown by (n') thereafter, a needle point is guided by both of the planes 21 and 23 so as to be automatically centered. The needle can therefore be easily housed in the needle pipe assemblies after use without going crisscross with each other.

Description

Detailed Description of the Invention (1) Purpose of the Invention [Field of Industrial Application] The present invention is directed to a needle tube assembly for a needle tube assembly that facilitates the storage operation when storing the needle of the needle tube assembly after use. It concerns protectors.

[Prior Art] When holding the needle tube assembly after use in one hand and storing the needle in the protector held in the other hand, if there is a discrepancy,
The tip of the needle may sting the finger holding the protector.

This kind of thing must never happen to prevent infections such as AIDS and hepatitis.

Conventionally, as a needle protector for a needle tube assembly that facilitates the storage operation when storing the needle of the needle tube assembly after use, there is a patent publication of JP-A-58-89275.

According to this document, an example of an open end of the housing is provided with a notch with a width slightly larger than the needle diameter, and the deep end of the notch is semicircular, and after use, the tip of the needle cannot be cut. Once the needle has passed through the needle and abutted against the housing wall facing the notch, the needle tip can be moved in the accommodation direction.

[Problems to be Solved by the Invention] However, since such a U-shaped notch is large enough to allow only the needle tip to pass through, there is a risk that a new discrepancy will occur when the needle tip is passed through the notch.

Furthermore, if the needle diameter is large, the cut must also be made large, making it impossible to use the protector in common.

SUMMARY OF THE INVENTION An object of the present invention is to provide a protector for the needle of a needle tube assembly that is equipped with a tongue-shaped guide portion on which the needle of the needle tube assembly of the bee to be used is placed, and that allows the needle to be stored extremely easily. do.

(2) Structure of the Invention [Means for Solving the Problem] The object of the present invention is as shown in FIGS. 1(a) and (b) or 2(a) and (b), The needle tube protector A has an elongated hollow shape with an open end and a closed end, and is for accommodating and protecting the needle tube of the needle tube assembly. A needle tube protector for the needle tube assembly S is provided with a tongue-like guide portion 2 extending outward in the axial direction from an end surface 1 of the inlet portion of the protector, the guide guide portion 2 is provided with a guiding guide surface 2a' that extends outward from the inner peripheral edge of the inlet portion of the protector A and gradually moves away from the axis as it moves outward in the axial direction, so that the needle tube of the needle tube assembly is guided into the protector A. This is achieved by a needle tube protector of a needle tube assembly, characterized in that the needle tube is configured to be able to guide the needle tube to the inlet portion of the protector when the needle tube is stored in the needle tube assembly.

[Function] As shown in FIG. 3, hold the needle tube assembly S after use almost horizontally with one hand, hold the closed end side of the protector A of the present invention with the other hand, and hold the used needle tube assembly S in a tongue-like shape. The guide section 2 is placed on the lower side so that it is approximately horizontal or slightly inclined. Then, place the tip of the needle tube n of the needle tube assembly S on the guiding section 2 of the protector, and align the protector i axis parallel to the axis of the needle tube assembly S while sliding the needle tube n inward of the protector. Since the needle tip of the needle tube n can be made smooth without sticking to the inner surface of the protector, it is only necessary to fit the inner periphery of the inlet portion of the protector A and the hub h of the needle tube assembly S.

[Embodiments] There are two embodiments of the needle tube protector of the needle tube assembly of the present invention.

The needle tube protector of the needle tube assembly of the embodiment shown in FIGS. 1(a), 1(b) has a tongue-shaped guide portion 2 extending outward in the axial direction from the end surface l of the inlet portion of the protector. The guiding guide surface 2a is an inclined surface that extends from the inner peripheral edge of the inlet portion of the protector and gradually moves away from the axis as it moves outward in the axial direction, and the inclined surface has three triangular shapes. flat part 21 of
．． 22 and 23, and as you approach the inlet of the protector from the outside, the flat parts 21 on both sides
．． As the width of 23 widens, the width direction of the middle flat part 22 narrows, so that the tip of the needle tube n of the needle tube assembly is placed on it, and the direction of the tip of the needle tube is gradually aligned with the inside of the protector as shown in no. When sliding, flat part 2
1.23 is designed to produce a guiding action to center the needle tip.

The needle tube protector of the needle tube assembly of the embodiment shown in FIGS. 52(a) and 52(b) is as follows.

The guide guide surface 2a of the guide guide part 2 is a shoehorn-shaped three-dimensional curved surface that extends outward from the inner peripheral edge of the protector in the axial direction and gradually moves away from the axial center as it moves outward in the axial direction. Since the cross section is a convex curved surface, when you place the tip of the needle tube n of the needle tube assembly and slide it so that the needle tube tip direction is gradually aligned with the inside of the protector as shown in n, the needle tip will have a shoehorn-like three-dimensional curved surface. There is no risk of it getting stuck.

(3) Effects of the Invention As described above, the needle tube protector of the needle tube assembly of the present invention is an elongated hollow body with one end open and the other end closed. Since the configuration includes a tongue-like guide portion that has an overhanging starting end and a surface that gradually becomes farther away from the axis as it moves outward in the axial direction, the needle tube assembly after use can be moved to one side. Hold the protector horizontally with one hand, hold the closed end side of the protector of the present invention with the other hand, and hold the protector approximately horizontally or slightly inclined so that the tongue-shaped guiding portion is on the lower side. Then, place the tip of the needle tube of the needle tube assembly on the guiding part of the protector and slide the needle tube inward of the protector while aligning the protector axis parallel to the axis of the needle tube assembly. It can be done smoothly without sticking to the inner surface of the protector, and it is only necessary to fit the inner periphery of the inlet of the protector and the hub of the needle tube assembly, so that when the needle of the needle tube assembly is stored in the protector after use, both This can be easily done to avoid any discrepancies between the needles, and further prevents the needle tip from pricking the finger holding the protector.

Furthermore, since the protector according to the present invention is equipped with a tongue-shaped guiding portion, it can effectively perform the above-mentioned guiding function even if the needle diameter is different. As long as it can fit into the hub and the length of the needle, it can be used in common regardless of the difference in needle tube diameter.

[Brief explanation of the drawing]

FIG. 1(a) is a partially sectional front view of a first embodiment of the needle tube protector of the needle tube assembly of the present invention, and FIG. 1(b) is a front view showing Ib in FIG. 1(a). - Ib arrow view. FIG. 2(a) is a partially sectional front view of a second embodiment of the needle tube protector of the needle tube assembly of the present invention, and FIG. 2(b) is a It is a b-11b arrow directional view. FIG. 3 is a manual diagram for explaining the needle tube storage operation using the protector of the present invention. A...-needle tube protector, l...end face, la...inner periphery of the entrance portion, 2...tongue-shaped guide guide portion, 2a... guide guide surface.

Claims (3)

[Claims] (1) A needle tube protector that has an elongated hollow shape with one end open and the other end closed, and that accommodates and protects the needle tube of the needle tube assembly, and the inner periphery of the inlet portion is fitted into the hub of the needle tube assembly. A needle tube protector for a needle tube assembly, which can be used as a needle tube assembly, is provided with a tongue-like guide portion extending axially outward from an end face of an inlet portion of the protector, the guide guide portion The protector has a protruding starting end at the inner periphery of the inlet portion of the protector, and is provided with a guide surface that gradually moves away from the axis as it moves outward in the axial direction, and when the needle tube of the needle tube assembly is housed in the protector. A protector for a needle tube of a needle tube assembly, characterized in that the needle tube is configured to be able to guide the needle tube to an inlet portion of the protector. (2) The guide guide surface of the guide guide part is an inclined surface that starts extending from the inner circumferential edge of the inlet of the protector and gradually moves away from the axis as it moves outward in the axis direction,
In addition, the inclined surface is formed by combining three triangular flat portions, and the width of the flat portions on both sides increases as the entrance portion of the protector is approached from the outside, and the width of the flat portion in the middle increases. 2. A needle tube protector for a needle tube assembly according to claim 1, wherein the needle tube assembly is narrowed. (3) The guide guide surface of the guide guide section has a shoehorn-like three-dimensional curved surface that extends outward from the inner peripheral edge of the protector in the axial direction and gradually moves away from the axial center as it moves outward in the axial direction. Item 1. A needle tube protector for the needle tube assembly according to item 1.