JPH0613749Y2 - Needle removal prevention tool - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention does not remove the connecting portion at the connecting portion between the infusion set and the catheter or the connecting portion between the side infusion line and the side infusion line in the middle of the line of the infusion set. The present invention relates to a fixture for fixing the above.

[Prior Art] When connecting an infusion set and a catheter, or connecting a side infusion line and a side infusion line in the middle of the line of an infusion set, a rubber puncture body of one infusion tube is used to inject the other injection needle. Puncture to connect the two lines and perform infusion. If the puncture needle is accidentally pulled out, the surroundings may be damaged by the needle tip, which poses a risk of infection. Further, if the operation is interrupted during the infusion, inconvenience may occur in infusion management, or if the needle is moved in the puncturing direction even before it is pulled out, contamination around the needle may occur.

However, conventionally, no particular consideration is given to fixing the connection part by the needle puncture so as not to come off, and an adhesive tape or a companion plaster is stuck between the two parts to be fixed or fixed, Or no fixing method was taken.

[Problems to be Solved by the Invention] In view of the fact that the connecting portions are connected in an unstable state and are placed in a dangerous state as described above, the inventor has made the coupling easy and stable. The present invention has been completed by conducting various studies on a needle pull-out prevention device that can fix the puncture base of the injection tube and the other needle base of the injection needle.

[Means and Actions for Solving the Problems] Thus, according to the present invention, the injection tube puncture portion tightening portion
(1), the corresponding side edges of the vertical halved cylindrical material forming the needle base tightening part (2) and the intermediate part (3) for the injection needle are connected by the hinge (6), and the side to each other side A needle pull-out prevention tool to which a rim coupling tool (7) is attached, and a puncture section tightening section (1) formed from a hard elastic material.
The puncture part base material (11) is installed horizontally on the bottom of the needle, and the needle base tightening part (2) The needle base part base material (12) is installed horizontally on the bottom bottom of the puncture part tightening part and the needle base tightening part. There is provided a needle pull-out prevention device characterized in that a puncture portion base material and a needle base material are joined so that the distance between them can be adjusted.

A first embodiment of the present invention is shown in the drawing. FIG. 1 is a front view of a needle pull-out prevention device, which is molded from elastic hard plastic and has a puncture portion fastening portion (1) and a needle base fastening portion ( 2) and the intermediate part (3) are formed from a vertically split cylinder, and the puncture part tightening part (1) and the needle base tightening part (2) have an inner diameter smaller than the outer diameter of the puncture part and the needle base, respectively. It is a vertical split cylinder, the corresponding side parts are joined by hinges (6), and the side edge fittings (7) forming a pair are attached to each other side, and the side edge fittings are engaged on one side. It is composed of a mating protrusion and an engaging hole on the other side, and is engaged with the engaging hole by utilizing the elasticity of the engaging protrusion. The same figures (B) and (C) are side views of the puncture part tightening part (1) and the needle base tightening part (2), respectively. It suffices to wrap it, close the cylinder, and tighten the side edge connector (7) to connect them.

Next, the length of the side-injection puncture portion, the end of the side-injection line, the needle base of the puncture needle, and the like are variously different. Although it is necessary to prepare several types of bases having different middle lengths, in the second aspect of the present invention, instead, the middle lengths can be freely adjusted according to the length of the mating partner. It is the one.

As the method, the puncture part tightening is formed by forming the insertion openings (4) and (5) in the tubular body having an inner diameter slightly smaller than the outer diameter of the puncture part of the injection tube and the needle base of the injection needle, respectively. The puncture part base material (11) and the needle base part base material (12) are laterally provided on the lower bottoms of the part (1) and the needle base tightening part (2), respectively, and the puncture part tightening part and the needle base tightening part are The puncture part base material and the needle base part base material are configured to be slidable and fixed at desired positions so that the puncture part base material and the needle base material are respectively located at the left and right ends.
The puncture part tightening part and the needle base tightening part can be pushed out of the needle base brim part and elastically tightened to firmly fix the puncture part and the needle base brim part.

Examples of the above method will be described below, but the present invention is not limited to these examples, and any method capable of appropriately adjusting the interval between the puncture part fastening part and the needle base fastening part may be used.

FIG. 2 (A) is a front view of the puncture part side and the needle base side of the first embodiment after being combined, and FIGS. 2 (B) and (C) are the puncture part side and the needle base side before combining, respectively. In each of the side views, a female screw (13) is provided in the lumen of the puncture base material (11), and a male screw (14) is provided on the rod of the needle base material (12). The needle base material (12) is screwed and rotated on the puncture base material (11) so that the attachment parts have a desired spacing.

FIG. 3 (A) is a front view of the puncture portion side and the needle base side after coupling in the second embodiment, and FIGS. 3 (B) and (C) show the puncture portion side and the needle base side before coupling, respectively. In each side view, the puncture base material (11) and the needle base material
A large number of circular holes (15) are provided at equal intervals in common with the vertical plate of (12),
The puncture part tightening part and the needle base tightening part are overlapped with each other at a desired interval, and the shaft of the disc with shaft (16) is inserted into the overlapped circular holes and elastically fitted, or A female screw is cut in each circular hole, a male screw is cut in the shaft of a disk with a shaft, and the screw of the screwed shaft is rotated to tighten and fix.

FIG. 4 (A) is a front view of the third embodiment after the puncture part side and the needle base side are combined, and FIGS. 4 (B) and (C) are respectively the puncture part side and the needle base side before connection. In each of the side views, a convex ring (17) having a sawtooth-shaped cross section is provided at the tip of the inner surface of the tube of the puncture base (11), and the needle base base (12) is fitted to the base (11). And, it is a round bar provided with a continuous annular part (18) with continuous peaks and valleys that slips easily on one side and does not slip in the opposite direction, and tightens the puncture part using the elasticity of the tube of the puncture part base material (11). The needle base material (12) is pushed in and fixed so that the portion and the needle base tightening portion have a desired interval.

FIG. 5 (A) is a front view of the puncture part side and the needle base side of the fourth embodiment after being combined, and FIGS. 5 (B) and (C) are the puncture part side and the needle base side before combining, respectively. In each of the side views, the needle base material (12) is a rectangular rod-shaped body provided with a saw blade portion (19) on the lower surface that is easy to slide in one direction and does not slide in the opposite direction, and the puncture portion base material (11) is A rectangular tubular body, elastic deformation easily occurs at the end of the lower bottom surface thereof, and a meshing protrusion (20) provided to mesh with the valley portion of the sawtooth portion is provided, and the base material (12) is placed in the base material (11). It is pushed firmly and fixed until it becomes a predetermined interval.

FIG. 6 (A) is a front view of the fifth embodiment after the puncture part side and the needle base side are combined, and FIGS. 6 (B) and (C) are the puncture part side and the needle base side before connection, respectively. In each side view of the puncture part base material (11) and the needle base part base material (12), respectively, corrugated plate parts (21), (21) which are mutually coded.
And the corrugated plate portions are overlapped so that the puncture portion tightening portion and the needle base tightening portion have a desired spacing, and a sleeve having a U-shaped cross section is formed.
(22) is fitted and both are pressed and fixed.

[Advantage of the Invention] By using the needle dropout prevention device according to the present invention, the injection tube puncture body part and the needle base of the line can be easily and firmly connected to prevent the risk of needle dropout or movement. It is possible and easy to remove when separating. Further, the one in which the length of the intermediate portion can be freely adjusted according to the length of the mating partner has an advantage that only one kind of the needle pull-out prevention device is sufficient.

[Brief description of drawings]

FIG. 1 (A) is a front view of the first needle drop prevention device of the present invention, (B) and (C) are side views of the puncture part tightening part and the needle base tightening part, and FIG. 2 (A). ), (B), (C) to FIGS. 6 (A), (B), (C) are respectively the second
FIG. 3 is a front view of the needle drop-out prevention device of the present invention, and a side view of the puncture portion fastening portion and the needle base fastening portion. (1) …… puncture part tightening part, (2) …… needle base tightening part, (3) …… intermediate part, (4), (5) …… insertion opening, (6) …… hinge ， (7)…
… Side edge fitting, (8) …… injection tube, (9) …… injection needle, (11)…
… Puncture base material, (12) …… Needle base material.

Claims (2)

[Scope of utility model registration request] 1. A vertical bisecting cylindrical material forming a puncture part tightening part (1) for an injection tube, a needle base tightening part (2) for an injection needle and an intermediate part (3) has a hinge ( 6) Joined with side edge fittings on each other side
Needle dropout prevention device with (7) attached. 2. A puncture base (11) which is made of a hard elastic material and is provided on the lower bottom of the puncture clamp (1) for an injection tube. The needle base material (12) is installed sideways on the lower bottom, and the puncture base material and the needle base material are connected so that the distance between the puncture portion tightening portion and the needle base tightening portion can be adjusted. Needle dropout prevention tool.