Puncture needle cartridge and puncture device using same

Patent metadata

Field	Value
Publication number	US-9649060-B2
Application number	US-201314406634-A
Country	US
Kind code	B2
Filing date	Jul 3, 2013
Priority date	Jul 31, 2012
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A puncture needle cartridge ( 1 ) includes: a lancet body ( 5 ) mounted with a puncture needle ( 3 ) on a front end side and having a mount ( 4 ) on a rear end side; and a plate-like first case ( 6 ) and second case ( 7 ) covering the lancet body ( 5 ) from above and below and arranged slidably back and forth along each other. The puncture needle cartridge ( 1 ) is configured such that the first case ( 6 ) is slid forward of the second case ( 7 ), and in this slid state, the first case ( 6 ) and the second case ( 7 ) are secured to each other when ejected from the puncture instrument ( 10 ). This can make the puncture needle cartridge ( 1 ) impossible to mount again on the puncture instrument ( 10 ).

First claim

The invention claimed is:

1. A puncture needle cartridge to be mounted on a puncture instrument, the puncture needle cartridge comprising:
a lancet body having a puncture needle on a front end side and having a mount on a rear end side;
a case including a first case and a second case, the first and second cases covering the lancet body from above and below, respectively, and the first and second cases are arranged slidably along each other;
a lock portion for securing the first and second cases to each other with one of the first and second cases being slid axially forward of the other; and
a protective cap provided with an operation part on a front end side of the case, the operation part being inserted into the case to cover the puncture needle.

2. The puncture needle cartridge according to claim 1 , wherein the first and second cases are secured to each other with one of the first and second cases being slid forward of the other when ejected from the puncture instrument.

3. The puncture needle cartridge according to claim 1 , wherein one of the first and second cases comprises an engagement portion, and the other of the first and second cases comprises:
a slide portion along which the engagement portion slides; and
the lock portion for locking the engagement portion with one of the first and second cases being slid forward of the other.

4. The puncture needle cartridge according to claim 3 , wherein the lock portion is formed with a recess.

5. The puncture needle cartridge according to claim 3 , wherein
the first case comprises:
a first engagement portion located on the front end side; and
a second engagement portion located on the rear end side, and

the second case comprises:
a first slide portion, located on the front end side, along which the first engagement portion slides; and
a second slide portion, located on the rear end side, along which the second engagement portion slides.

6. The puncture needle cartridge according to claim 5 , wherein
the first engagement portion is provided in the outer region on the front end side of the first case,
the second engagement portion is provided in the inner region on the rear end side of the first case, and
the second slide portion is formed with a slide slot passing through the second case.

7. The puncture needle cartridge according to claim 1 , wherein
the lancet body has an arm portion extending in a direction perpendicular to the lancet body, and
the second case has a protrusion, in front of the arm portion, for engagement with the arm portion.

8. The puncture needle cartridge according to claim 7 , having a configuration in which the first case slides forward of the second case toward the front end.

9. The puncture needle cartridge according to claim 1 , wherein the first and second cases are plate-like objects.

Assignees

• Panasonic Healthcare Holdings Co Ltd

Inventors

• Nagao Akio

Classifications

• A61B5/15113

  Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button · CPC title

• A61B5/15111

  Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user · CPC title

• A61B5/1513

  comprising linear sliding guides (comprising tooth-shaped elements A61B5/15132) · CPC title

• A61B5/150648

  fully automatically triggered, i.e. the triggering of the protective sleeve does not require a deliberate action by the user such as terminating the contact with the patient's skin · CPC title

• A61B5/150633 Primary

  Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves · CPC title