Back to results
US 12,144,625 B2Granted
Puncture needle, puncture device, and blood sampling device
AssigneesThe School Corporation Kansai University, Aiki Riotech Corporation
InventorsSeiji Aoyagi, Hajime Matsumoto
Life of this patent
Estimating the term…
Abstract
Provided is a puncture needle that receives lower puncture resistance than conventional techniques. A puncture needle in accordance with an aspect of the present invention includes a needle body (10) that includes a main portion (12) and a distal portion (11) tapering from the main portion (12) and that is rotatable about a central axis (1) of the needle body (10), the needle body (10) including needle parts (15) separated by a boundary along the central axis, each of the needle parts (15) being independently translatable along the central axis (1).
Claims9
A puncture apparatus comprising:
- a puncture needle;
- and
- a driving section;
- wherein the puncture needle includes:
- a needle body that includes a main portion and a distal portion tapering from the main portion and that is rotatable about a central axis of the needle body,
- the needle body including needle parts which are separated by a boundary along the central axis,
- each of the needle parts being independently translatable along the central axis;
- and
- wherein the driving section includes:
- a rotation mechanism configured to cause the needle body to rotate;
- and
- a translation mechanism configured to translate each of the needle parts independently along the central axis, the translation mechanism being configured to cause at least one of the needle parts to advance such that the at least one of the needle parts projects forward relative to the other one or more of the needle parts;
- and
- wherein the driving section is configured to cause the needle body to carry out the following two types of motion modes:
- (a) first motion mode in which the needle body is caused to rotate and at least one of the needle parts is caused to advance such that the at least one of the needle parts projects forward relative to the other one or more of the needle parts;
- and
- (ii) second motion mode in which the needle body is caused to rotate or at least one of the needle parts is caused to advance such that the at least one of the needle parts projects forward relative to the other one or more of the needle parts.
14 more elements
A blood collecting apparatus comprising:
- a puncture needle;
- and
- a driving section;
- wherein the puncture needle includes:
- a needle body that includes a main portion and a distal portion tapering from the main portion and that is rotatable about a central axis of the needle body,
- the needle body including needle parts which are separated by a boundary along the central axis,
- each of the needle parts being independently translatable along the central axis;
- wherein the needle body has therein a flow passage which is in communication with an outside environment of the needle body and which allows a fluid to flow therein, each of the needle parts forms a part of the flow passage;
- and
- wherein the driving section includes:
- a rotation mechanism configured to cause the needle body to rotate;
- and
- a translation mechanism configured to translate each of the needle parts independently along the central axis,
- the translation mechanism being configured to cause at least one of the needle parts to advance such that the at least one of the needle parts projects forward relative to the other one or more of the needle parts;
- and
- wherein the driving section is configured to cause the needle body to carry out the following two types of motion modes:
- (a) first motion mode in which the needle body is caused to rotate and at least one of the needle parts is caused to advance such that the at least one of the needle parts projects forward relative to the other one or more of the needle parts;
- and
- (ii) second motion mode in which the needle body is caused to rotate or at least one of the needle parts is caused to advance such that the at least one of the needle parts projects forward relative to the other one or more of the needle parts.
16 more elements
Dependencies are inferred from the claim text.