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Micro-transfusion core made of plastics and transfusion tube for mounting said transfusion core

A drip, plastic technology used in flow control, non-electric variable control, devices introduced into the body, etc.

Inactive Publication Date: 2006-09-20
JMS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned micro-infusion wick, its flow rate can be micro-adjusted, but the interval between each drop is required to be uniform, therefore, the purpose of the present invention is to provide a micro-infusion wick and a drip tube for installing the micro-infusion wick, with a needle tube The micro-drip tip made of plastic at the top of the plastic shape solves the so-called problem of uniform spacing between each droplet

Method used

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  • Micro-transfusion core made of plastics and transfusion tube for mounting said transfusion core
  • Micro-transfusion core made of plastics and transfusion tube for mounting said transfusion core
  • Micro-transfusion core made of plastics and transfusion tube for mounting said transfusion core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1——The outside of the wall portion 25 of the drip core part is provided with several ribs C, and the shape is gradually reduced in diameter from top to bottom. Due to the formation of the aforementioned several ribs C, it should have a good separation from the molding die. come out as well. Furthermore, the shape of the wall surface of the inner cavity is to gradually expand the diameter at the upper and lower ends at the middle part E of the inner cavity. The inner diameter of the middle part E of the inner cavity is smaller than the inner diameter of other parts. The wall surface forms a curved portion with the middle part of the cavity as the top, and the radius R of the curved portion is about 560 to 840 mm, preferably about 700 mm. Furthermore, the shape of the outer wall surface 26 near the opening of the needle-tubular plastic top end B is based on figure 2 The vertical shape shown is as well. That is, until the opening of the needle-shaped plastic ...

Embodiment 2

[0026] One of the features of the present invention is the style of the inner cavity shape of the needle tubular plastic top part and the drip core part, for example image 3 Shown (a) ~ (d) form.

[0027] image 3 Among them, the middle part is indicated by a dotted line, the middle part of the lumen shown in (a) forms the R part, the inner cavity shown in (b) forms the R part upward from the middle part, and the inner cavity shown in (c) goes down from the middle part The R portion is formed, and the R portion is not formed in the middle portion of the lumen shown in (d).

[0028] Have again, the high smoothness of the wall of the inner cavity is better to achieve the purpose of the present invention, the smoothing of the wall of the inner cavity is when the drip core part A and the needle tubular plastic top part B are made, the wall of the inner cavity Grinding with abrasives, for example, grinding with 1000# abrasive cloth.

Embodiment

[0030] The present invention is specifically described below in conjunction with the examples.

[0031] Example 1

[0032] according to figure 2 As shown, the infusion wick of this embodiment is composed of an infusion wick part A and a needle-shaped plastic tip part B, and is formed of polyolefin resin. The length of the dripping part of the needle tubular plastic tip part B is 5.0mm, the inner diameter of the opening is 0.5mm, and the outer diameter of the opening is 0.9mm.

[0033] Further, the total length of the rib C formed at the drip core portion and the needle tubular plastic tip portion B was 11.5 mm. In this embodiment, four ribs C are provided, and the shape of the ribs is tapered from top to bottom.

[0034] In the inner cavity 27, the middle part E with the smallest inner diameter is formed at a position 5.24 mm away from the opening part B of the needle-shaped plastic top part. The inner diameter of the middle part E is 0.48 mm, and the diameter of the middl...

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PUM

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Abstract

The object of the present invention is to provide a dripping wick for microdose which is made of a plastic having a needle-like plastic tip and is fitted with the dripping wick for microdose to make dripping intervals further uniform, and to provide a dripping cylinder fitted with the dripping wick. The dripping wick made of the plastic is integrally molded with a dripping wick segment and a needle-like plastic tip segment, in which the shapes of the lumen wall surfaces of the needle-like plastic tip segment and the tip segment are configured to expand divergently to the upward and downward directions, respectively, from the intermediate portion of the lumen.

Description

technical field [0001] The present invention relates to a plastic infusion core and an infusion tube equipped with the infusion core. The plastic infusion core is integrally formed with the infusion core part and the needle tubular plastic top part, and the cover is integrally formed with the plastic infusion core. technical background [0002] For the drip tube, there are common 15-20 drop / ml drop tubes and 60 drop / ml micro-drop tubes for special purposes for children and dropping into micro-medicines. In the prior art, such as figure 1 As shown, the core tube 11 is connected to the upper part of the drip tube 13 through the cover 12, and the core tube 11 is connected with a needle-shaped drip core 14. [0003] Micro drip tube, in order to make the droplets of the above-mentioned commonly used drip tube tiny, a needle tube-shaped metal drip core with an inner diameter of 0.6 mm is used as the drip core. However, due to the recent waste problem, it is important to discard a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/14A61M5/168
Inventor 山本和宽土井隆司
Owner JMS CO LTD
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