JPH03237984A - Transfusion line connector - Google Patents

Abstract

PURPOSE:To assist connection and to easily achieve perfect connection by providing a plurality of guide projections outwardly protruding in a radius direction between the screw connection part of the second connection member having the outwardly protruding screw connection part threaded with the screw connection part of the first connection member and the base part thereof. CONSTITUTION:In an intermediate connector 2 having the first connection part 4 including a screw connection part 7 having a female screw therein and the second connection part 5 protruding at one end thereof including a screw connection part B having the male screw threaded with the female screw and/or a tube connector 13, a plurality of guide projections 10 integrated with the connection member 5 and protruding outwardly in a radius direction are provided to the second connection member 5 in the vicinity of the base part 9 different from the screw connection part of the member 5. These guide projections 10 may be formed in a spot-like or linear state and may be parallel, vertical or oblique with respect to an axial direction.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a medical infusion line connector.

More specifically, the present invention relates to an infusion line with improved connection maintainability and oil lubricity.

(Prior art 1) The problem to be solved by the present invention is a drip or infusion system for treating chestnuts, blood, cleaning fluid, etc., which is generally widely used in various medical institutions. Connecting drug lines and adjusting the amount of infusion: J: There are many opportunities to use connectors to connect 4-section devices.

However, the connection fittings for the a liquid line that are currently in use are
It is made of plastic with a type IIm screw connection bit, but the connection is complicated and it is difficult to ensure completeness by 1m.If the operator is busy, the connection of this fitting may be insufficient.
It may remain incomplete and may be used or separated during use.
In addition, there were many cases of infusion leakage.

The connection is easy, but the connection GL (connection is reliable).

The development of inexpensive connections that can prevent inadvertent connections and that can easily obtain liquid 15 properties has been of great interest to users for a long time.
It was in demand among medical institutions.

The present inventor focused on this point and made extensive studies and speculations, and as a result, completed the following invention.

(Means for solving the problem) Near the base 11F of the second connecting member of the Ta fitting, there is a part with a certain space where conventional threaded joints are missing, and this part has a threaded joint. Facilitation of connections and connections O) Helps with imperfections, and also completes ta conjunctions '9? t/l;'s (i?
It was interfering with the licensure.

Therefore, in the space where the screws t without the first and second members "shaking",
The metal was deposited smoothly, thereby helping the threaded joint to join and making it easy to achieve perfect connectivity.

This guide protrusion must not exceed the gap between the first and second (7) members to be joined, and must not interfere with the screw connection.

Furthermore, it must have the effect of promoting the screw connection between the first and second members and clearing the F-LJ, so any protrusion with a rounded tip with little undulation is sufficient. It may be either the new/autumn season or a combination thereof, but it is necessary to install a plurality of at least two or more Tsukuda arranged at diametrically opposed positions. However, if there are too many screws, the penetration of the threaded portion and its F'1 lubricity will be lost, so the shape, location and number of screws must be carefully considered in advance.

In addition, although the screw connection completes the tenacity to a certain extent, in case of an emergency or to achieve perfection,
It is preferable to use a flexible ring with elasticity for sealing at the base. If this flexible ring is made of 'rQi material such as natural or synthetic rubber, soft vinyl chloride, polyurethane, silicone, etc. Any material may be used, and it is preferable that it has an outer diameter equal to or larger than the inner diameter of the first bonded gIS material to be coated and has a size that does not overlap with the guide protrusion. .

In order to understand the content of the present invention more clearly, the present invention will be described in detail based on the following embodiments and accompanying drawings.

(Example) Fig. 1 shows a cannula (1) having a needle at one end and/or an intermediate connector (2) having a communicating part (1) A threaded joint having an internal thread to cover the connecting part. (7) a first joint part (0) and a second joint part (intermediate joint having a threaded joint g3 (8) with one end protruding) having a male thread that engages with this female thread (g3); (2) and/or a cross-sectional view of the tube connector (3) is shown.

The threaded joint (7) of the first joint part (4) is the barbed part (9)
Second joint part (5) which is screwed only in the vicinity and with this
The threaded joint (8) has a threaded portion only at the end (6),
The rest of each part has a tubular shape without threads, and has a space with a height corresponding to the difference between the crests and troughs of the threads.

In the connecting device according to the present invention, this second connecting member (5)
This joint gl (
A plurality of guide protrusions (10) which are integrated with the material (5) and protrude outward in the radial direction are attached.
I) may be point-shaped or linear, and may be pressed flat, perpendicular, or inclined in the axial direction; Part (6)
o) The axes of the first member (4) and the second member (5) to be joined must match.

This guide projection (Ii
l) must not be in a position where it contacts or interferes with the threaded joint (7) of the first joint member (0), and must not be in a position where it interferes with the threaded joint (7) of the first joint member (5), and the base gl (9) of the second joint member (5) ) Nearby is a flexible ring (11) for sealing to complete the airtightness of the joint.
It is preferable to space them so that they do not overlap, and furthermore,
This guide protrusion (1 [υ is.

Not only the second joining member (5-inch) but also the first joining member (0-inch
In this case, the second joint member (5-inch threaded joint (S)) may be attached to the inner surface of the holder.

and must be in a shape and/or position that does not interfere with the liquid tightness.Finally, the base of the second joint member (5) (
9) Attach an elastic flexible ring (11) near the end 81S (11) of the first joint member (4) and the base (9) of the second joint GLS material (5>). This flexible ring (11) can be made of any flexible material with "elasticity Q" that does not contaminate or dissolve toilet medicines, blood, cleaning fluids, etc. , preferably one or more of natural or synthetic rubber, soft vinyl chloride, polyurethane, silicone rubber.

Further, this visibility ring (11) is attached to the first joining member (
4) end (6) and second joining member (5) (1) Group Δ
1i01), any shape may be used as long as it does not create a gap between the first joint member (4) and the first joint member (4). Helps liquid tightness,
Preferably, it does not overlap with the guide protrusion (10).

The embodiment disclosed herein merely shows a part of the structure based on the present invention, and the present invention is not limited to this embodiment, and modifications of each building that can be easily carried out by those skilled in the art are possible. and modifications are intended to be within the scope of this invention.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a conventionally used infusion line VI fitting. FIG. 2 is a sectional view showing the state of the infusion line connector according to the present invention before connection. FIG. 3 is a sectional view showing a completed state of connection of the @liquid line connector according to the present invention. In the attached drawings, 1... cannula, 2... intermediate connector, 3... tube connector, 4... first connecting member, 5...
Second connecting member, 6... end, 7.8... threaded connection part, 9... base, 10... guide projection,! 1...Flexible ring. Procedural amendment (method) June 11, 1990

Claims (3)

[Claims] (1) A first joint part having one end having a threaded joint part that is threadedly engaged with the inside thereof, and a threaded joint part protruding outward that is threadedly engaged with the threaded joint part of the first joint member near the tip of the one end. An infusion line connector comprising a second connecting member having a second connecting member having a plurality of guide protrusions projecting radially outward between the threaded joint portion and the base of the second connecting member. Connector. (2) In the connector according to claim 1,
A connector characterized in that the guide protrusion has a height that is the same as or less than that of the protruding threaded joint. (3) In the connector according to claim 1 or 2, a flexible ring that receives the tip of the joint of the first joint member at the base of the threaded joint of the second joint member. A connector characterized by comprising: