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Hole-forming pin for inserting indwelling needle and jig for installing the pin

A technology for installing tools and indwelling needles, which is applied in the directions of needles, guiding needles, and instruments introduced into the body, etc., which can solve the problems of difficult to see the direction of plug installation, not necessarily complete fixation, and falling plugs, etc. It is easy to achieve manual indwelling operations. , good operability

Inactive Publication Date: 2005-09-21
NIPRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in conventional indwelling needle insertion hole-forming plugs, the shape of the insertion prevention part is spherical, conical, oval, or flat with a small skin contact area, and the fixation during indwelling is not necessarily complete.
For example, in the worst case where the patient comes into contact with something and places an excessive burden on the human body (buttonhole), there may be a problem that the insertion part is fixed in a state where the direction of the insertion part is changed, and the buttonhole faces out of the blood vessel. The direction of the formation, or the hole formation plug falls off, and the hole cannot be formed
In addition, the insertion assisting tool used to hold the above-mentioned conventional indwelling needle insertion hole-forming plug has problems such as the direction in which the plug is installed is difficult to see, and after installation, it is difficult to separate the plug itself from the insertion assisting tool. time-consuming issues

Method used

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  • Hole-forming pin for inserting indwelling needle and jig for installing the pin
  • Hole-forming pin for inserting indwelling needle and jig for installing the pin
  • Hole-forming pin for inserting indwelling needle and jig for installing the pin

Examples

Experimental program
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Effect test

Embodiment 1

[0032] First, the operation of each component of the indwelling needle insertion hole-forming plug A of the present invention will be described.

[0033] figure 2 Showing an embodiment of the hole-forming plug for indwelling needle insertion of the present invention, an insertion prevention part 2 is provided at the base end of the cylindrical insertion part 1, and wings are connected to the left and right sides of the insertion prevention part 2 through elastic connecting parts 30. Part 4, the flexibility of the elastic connection part 30 part is greater than the insertion preventing part 2 of other parts in the hole forming plug, the wing part 4, etc., so, relative to the insertion preventing part 2, in the wing part 4, as shown in the figure , the part in the horizontal state is easy to bend, and can stand upright as shown by the dotted line in the figure, and can hold the wing 4 parts upright like this by fingers, and the indwelling needle of the present invention is inse...

Embodiment 2

[0040] pass below figure 1 , an example set as a preferred embodiment as described above will be specifically described. In addition, here, in this embodiment, low-density polyethylene is used and extrusion molding is performed.

[0041] exist figure 1 In the illustrated indwelling needle insertion hole forming plug, the columnar insertion portion 1 has a curved front end. Due to this shape, when the insertion portion 1 is inserted into the insertion portion 1 to form a buttonhole at a site punctured by an indwelling needle for dialysis or the like, the wall and other sites are not damaged. In order to form a hole to the extent that an indwelling needle with a blunt front end can be inserted, it is preferable that the outer diameter of the insertion part 1 is in the range of 0.5 to 3.0 mm. Well, the outer diameter is 1.0-2.0 mm. In addition, when the plug is formed in the hole for inserting the indwelling needle, in order to make the front end of the plug reach the blood v...

Embodiment 3

[0059] In addition, in the installation tool B used for the hole forming plug of the present invention, the third embodiment is shown. Figure 7 (Fig. 8), installation tool B comprises main body 6 and sliding body 7, and this sliding body 7 is assembled on this main body 6, slides along the length direction of this main body 6, and main body 6 is made of left and right side walls 65, bottom plate 66, top plate 67. The rear end wall 68 is formed in a cylindrical shape. Between the inside of the rear end wall 68 of the main body 6 and the rear end 74 of the slider 7, a coil spring 90 is fitted to bias the slider 7 forward. The top of the sliding body 7 forms a forward slope 73, and the rear slope 93 corresponding to the slope 73 is formed at the bottom of the finger holding part 92. The through hole 64 of the top plate protrudes upward toward the main body. In addition, when the finger grasping member 92 is pushed downward, the backward inclined surface 93 is pushed into the fo...

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PUM

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Abstract

A hole-forming pin for inserting a dwelling needle, with which pin load to a living body is minimized as much as possible, and an installation jig for installing the pin from a skin surface. A pin (A) for forming a hole for inserting a dwelling needle in a range from a skin surface to blood vessels is structured of a circular cylinder-like insertion portion (1) having a curved face on its tip, an insertion stop portion (2) provided at the base end of the insertion portion (1), and wing portions (4) connected to the insertion stop portion (2) through connection branches (3). In a jig for installing the hole-forming pin (A), a main body (6) of an installation jig (B) and a slide body (7) sliding in a length direction of the main body (6) are assembled together, and support means (10) for supporting the hole-forming pin for inserting a dwelling needle is provided on the tip portion of the slide body (7) and / or on the tip portion of the main body (6) of the installation jig. The hole-forming pin (A) for inserting a dwelling needle is installed from a skin surface by sliding the slide body (7).

Description

technical field [0001] The present invention relates to a plug for forming an insertion hole for inserting an indwelling needle from the skin surface of a human body to a blood vessel wall or to the nearest point thereof, and an installation tool for the plug. Background technique [0002] Hemodialysis patients generally have to perform hemodialysis at a frequency of 2 to 3 times a week, and every time the indwelling needle is inserted, it causes great pain to the patient. [0003] Then, in order to suppress the piercing pain to a minimum, the present applicant proposed a hole-forming plug for indwelling needle insertion (refer to Japanese Design Registration Nos. 1136452, 1137743, 1138667, and 1140738). These plugs are formed by a cylindrical insertion portion having a front end with a ball, and an insertion prevention portion provided at a base end of the insertion portion, and a holder for holding the plug by inserting the front end portion of an insertion assisting tool ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/06
CPCA61M25/0637
Inventor 新里彻当间茂树佐野嘉彦增田利明山口一原田和良高木信雄谷本真久
Owner NIPRO CORP