Piercing tool

• US 7,988,667 B2
• Filed: 04/16/2008
• Issued: 08/02/2011
• Est. Priority Date: 04/27/2007
• Status: Active Grant

• Current Assignee: Terumo Kabushiki Kaisha
• Original Assignee: Terumo Kabushiki Kaisha
• Inventors: Imai, Masaomi
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): VU, QUYNH-NHU HOANG
• Application Number:
  US12/597,685
• Publication Number:
  US 20100137799A1
• Time in Patent Office: 1,203 Days
• Field of Search: 604/93.01, 604115-117, 604/164.01, 604/164.04, 604/164.12, 604263-264, 604/272, 604/174, 604179-180, 600/573, 600/576, 600/578, 606/167, 606/181, 606184-185, 606/186, 128/99.1, 128/900.1, 128/101.1, 128/102.1, 128/876, 128878-879
• US Class Current: 604/115
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/3271 with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
• CPC Class Codes: A61M 5/3287 Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take precedence
• CPC Class Codes: A61M 5/425 Protruding skin to facilitate piercing, e.g. vacuum cylinders, vein immobilising means
• CPC Class Codes: A61M 5/46 having means for controlling depth of insertion

Abstract

A piercing tool (1) can safely and reliably pierce a piercing needle (411) into a skin layer. The piercing tool (1) comprises a belt-like flexible fixing member (2) having an opening (3) formed for raising skin, and a piercing needle moving means (4) mounted on the belt-like fixing member (2) for movably holding the piercing needle (411). By moving the piercing needle moving means (4), the piercing needle (411) is moved so as to be pierced into the skin raised from the opening (3).

Claims

1. A piercing tool for piercing a piercing needle into a skin, comprising:

a belt-like flexible fixing member having an opening formed for raising the skin;

a piercing needle; and

a piercing needle moving means mounted on the belt-like fixing member for moving the piercing needle toward a side surface of the skin raised from the opening, wherein, by moving the piercing needle moving means toward the side surface of the skin raised from the opening, the piercing needle is moved so as to pierce the skin raised from the opening through the side surface of the raised skin;

wherein the piercing needle moving means comprises a movable housing holding the piercing needle movably and a guide portion guiding the housing, and by moving the piercing needle moving means first and then the piercing needle toward the side surface of the skin raised from the opening, the piercing needle is moved so as to pierce the skin raised from the opening.

2. The piercing tool according to claim 1, wherein the belt-like fixing member is provided with an adjusting means for adjusting the fixing position of the piercing tool when attaching the piercing tool to a body.

3. The piercing tool according to claim 1, wherein the opening of the belt-like fixing member is provided with a regulating member for regulating the condition of the skin raised from the opening.

4. The piercing tool according to claim 1, wherein the piercing needle moving means is moved in a direction perpendicular to the longitudinal direction of the belt-like fixing member.

5. The piercing tool according to claim 2, wherein the opening of the belt-like fixing member is provided with a regulating member for regulating the condition of the skin raised from the opening.

6. The piercing tool according to claim 1, wherein the housing comprises an outer tube guided by the guide portion and an inner tube having the piercing needle.

7. The piercing tool according to claim 1, wherein the regulating member comprises a top plate provided above the opening so as to face the opening, and the height of the skin raised from the opening is regulated to a predetermined height by the top plate.

8. A piercing tool for piercing a piercing needle into a skin, comprising;

a belt-like flexible fixing member having an opening formed for raising the skin;

a piercing needle; and

a piercing needle moving means mounted on the belt-like fixing member for moving the piercing needle;

wherein, by moving the piercing needle moving means, the piercing needle is moved so as to pierce the skin raised from the opening in parallel with a portion of the belt-like fixing member where the opening is formed;

wherein the piercing needle moving means comprises a movable housing holding the piercing needle movably and a guide portion guiding the housing, and by moving the piercing needle moving means first and then the piercing needle toward the side surface of the skin raised from the opening, the piercing needle is moved so as to pierce the skin raised from the opening.