Plug and bodily fluid-collecting instrument set

Patent metadata

Field	Value
Publication number	US-10182967-B2
Application number	US-201113502479-A
Country	US
Kind code	B2
Filing date	Jan 27, 2011
Priority date	Feb 1, 2010
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A plug that allows the plug body to be easily and reliably pierced through by a hollow bodily fluid collection needle, makes the bodily fluid collection needle difficult to draw back out of the plug body owing to a resilience of a sheath after the start of bodily fluid collection, and enables easy and reliable collection of the bodily fluid. The plug 1 is a plug for closing an opening end of a bodily fluid-collecting container 14 which is to be inserted into a tubular holder 11 , and includes: a plug body 2 to be fixed to the opening end of the bodily fluid-collecting container 14 ; and a cover member 3 sheathed on the plug body 2 to cover an outer surface of the plug body 2 , wherein the cover member 3 includes a side part 3 c covering the outer surface of the plug body 2 , and an outer surface of the side part 3 c is provided with a protrusion 3 k which protrudes radially outward of the side part 3 c of the cover member 3 to come into contact with and give frictional resistance to an inner wall of the holder 11 upon insertion into the holder 11.

First claim

The invention claimed is:

1. A plug for closing, by being fitted to an opening of a tubular bodily fluid-collecting container which is to be inserted into a tubular holder, the opening, the plug comprising:
a plug body to be fixed to the opening of the bodily fluid-collecting container; and
a cover member with which the plug body is sheathed so that an outer surface of the plug body is covered,
wherein the cover member includes a side part covering at least the outer surface of the plug body, and an outer surface of the side part of the cover member is provided with a protrusion which protrudes radially outward of the side part of the cover member to come into contact with and give frictional resistance to an inner wall of the holder upon insertion into the holder and constitutes a maximum outside diameter portion to be pressed against the inside of the holder;
wherein the protrusion is formed of a strip extending circumferentially on the side part of the cover member;
wherein the strip has two planar walls that each extend from and intersect with the side part of the cover member, and an outer wall that connects the two planar walls, and more than 50% of the outer wall makes surface contact against an inner surface of the holder;
wherein a lower end of the side part of the cover member defines an opening in the plug through which a portion of the tubular bodily fluid-collecting container comprising the opening of the tubular bodily fluid-collecting container can be inserted; and
wherein the side part of the cover member is provided with a plurality of slits extending to the lower end of the side part.

2. The plug according to claim 1 , wherein the maximum outside diameter of the strip in a radial direction of the side part of the cover member is 17.0 to 18.5 mm.

3. The plug according to claim 1 , wherein the protrusion is provided at a position spaced apart from a plane corresponding to the lower end of the side part of the cover member.

4. The plug according to claim 1 , wherein the protrusion is provided at a position within 8 mm from the lower end of the side part of the cover member, and the protrusion thickness of the protrusion from the side part of the cover member is 0.25 to 1.5 mm.

5. The plug according to claim 4 , wherein the protrusion has a vertical length of 1 to 8 mm.

6. The plug according to claim 1 , wherein the protrusion is made of a material different from the cover member and fixed to the side part of the cover member.

7. The plug according to claim 1 , wherein the protrusion is made of the same material as the cover member, and the protrusion and the cover member are formed by integral molding.

8. The plug according to claim 1 , wherein the plug body is made of an elastic material capable of press fit into the opening of the bodily fluid-collecting container and includes a pierceable portion through which a bodily fluid collection needle is to be pierced, and the thickness of the pierceable portion is 1 mm to 4 mm.

9. The plug according to claim 1 , wherein the plug body is made of an elastic material capable of press fit into the opening of the bodily fluid-collecting container and includes a pierceable portion through which a bodily fluid collection needle is to be pierced, and the pierceable portion is formed by providing a recess in a top surface of the plug body so that the pierceable portion has a relatively small thickness compared to a portion surrounding the pierceable portion.

10. The plug according to claim 9 , wherein the depth of the recess is 4 mm to 8 mm.

11. A bodily fluid-collecting container having an opening at a top end thereof and being equipped at the opening with the plug according to claim 1 .

12. A bodily fluid-collecting instrument set comprising:
a holder including a tubular holder body having an opening at a lower end thereof and closed at an upper end thereof, a bodily fluid collection needle fixed to the holder body to penetrate the upper end of the holder body and extending at one end to the outside of the holder body and at the other end to the interior of the holder, and a sheath made of an elastic material and attached to the holder body or the bodily fluid collection needle to envelop the other end of the bodily fluid collection needle;
a bodily fluid-collecting container configured to be capable of being inserted into the holder through the opening at the lower end and having an opening at an upper end thereof; and the plug according to claim 1 and fixed to the opening of the bodily fluid-collecting container.

13. The plug according to claim 1 , wherein the slits extend to an inner region of the strip.

Assignees

• Niunoya Masatoshi
• Okamoto Ryusuke
• Sekisui Medical Co Ltd

Inventors

• Niunoya Masatoshi
• Okamoto Ryusuke

Classifications

• B65D51/002

  Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means · CPC title

• A61B5/154

  {Devices} using pre-evacuated means · CPC title

• A61J1/1406 Primary

  Septums, pierceable membranes · CPC title

• A61B5/150259

  Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape · CPC title

• A61B5/150473

  Double-ended needles, e.g. used with pre-evacuated sampling tubes (hollow piercing element tip design A61B5/150396) · CPC title