SET FOR DETERMINING BLOOD TYPE AND COVER BODY

• US 20110021890A1
• Filed: 02/26/2009
• Published: 01/27/2011
• Est. Priority Date: 03/21/2008
• Status: Active Grant

• Current Assignee: Terumo Kabushiki Kaisha (Terumo Corporation)
• Original Assignee: Terumo Kabushiki Kaisha (Terumo Corporation)
• Inventors: Nagata, Hideto, Nishizawa, Yuji
• Granted Patent: US 8,554,295 B2
• Time in Patent Office: Days
• US Class Current: 600/310
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150236 Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
• CPC Class Codes: A61B 5/150244 Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
• CPC Class Codes: A61B 5/150305 Packages specially adapted for piercing devices or blood sampling devices kits for diabetes A61M5/003; packaging in general B65D
• CPC Class Codes: A61B 5/150328 by aseptic fluid
• CPC Class Codes: A61B 5/150335 by radiation
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/150809 by audible feedback
• CPC Class Codes: A61B 5/150824 by visual feedback
• CPC Class Codes: A61B 5/15087 short range, e.g. between console and disposable using implanted devices A61B5/150877
• CPC Class Codes: A61B 5/153 Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
• CPC Class Codes: A61B 5/1535 comprising means for indicating vein or arterial entry A61B5/1545 takes precedence
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood
• CPC Class Codes: A61B 5/489 Blood vessels
• CPC Class Codes: G01N 2021/3144 for oxymetry
• CPC Class Codes: G01N 2021/3181 using LEDs
• CPC Class Codes: G01N 21/3151 using two sources of radiation of different wavelengths G01N21/33 - G01N21/39 take precedence
• CPC Class Codes: G01N 2201/0627 Use of several LED's for spectral resolution

Abstract

Disclosed is a set for determining whether blood obtained in puncture tools by puncturing a blood vessel is venous blood or arterial blood easily, and ensuring handling under a sterile state. A set for determining blood type has a cover body to be attached to a syringe set, and a blood type determination unit to be housed in the cover body. The blood type determination unit comprises a light projecting portion and a light receiving element, and a blue output LED and a red output LED showing a judgment result based on a signal obtained from the light receiving element. The cover body has a body and a lid that are combined with each other to cover the blood type determination unit, a partition for passing blood between the light projecting portion and the light receiving element, and a pair of measurement windows for transmitting light between the light projecting portion and the light receiving element through the partition.

Claims

1. A set for determining blood type, comprising:

a cover body to be attached to a puncture tool; and

a blood type determination unit to be housed in the cover body, wherein

the blood type determination unit includes

a light projecting section and a light receiving section which are located so as to face each other;

a judging section for determining whether blood between the light projecting section and the light receiving section is venous blood or arterial blood, based on a signal obtained from the light receiving section; and

an output section for outputting the result of judgment made by the judging section, and

the cover body has a measurement section to be attached to the puncture tool such that blood collected by the puncture tool flows into a space between the light projecting section and the light receiving section.

2. The set for determining blood type according to claim 1, wherein

the cover body has a first cover member having the measurement section and in which the blood type determination unit is mounted, and

a second cover member connected to the first cover member by a hinge.

3. The set for determining blood type according to claim 1, wherein

the measurement section has an attachment portion to be attached to the puncture tool, and

a measurement window provided on the attachment portion and through which light is transmitted between the light projecting section and the light receiving section.

4. The set for determining blood type according to claim 3, wherein

at least a periphery of the measurement window of the measurement section is lightproof.

5. The set for determining blood type according to claim 3, wherein

the puncture tool has a needle body and a syringe;

the attachment portion has a blood inflow portion which is disposed between the needle body and the syringe and into which blood is introduced; and

the needle body and the syringe are connected to the blood inflow portion.

6. The set for determining blood type according to claim 3, wherein

the puncture tool has a needle body and a syringe;

and

the attachment portion is attached to an outer cylinder of the syringe.

7. The set for determining blood type according to claim 3, wherein

the puncture tool has a needle body and a syringe;

and

the attachment portion is attached to a blood inflow portion which is formed at a hub of the needle body and into which blood is introduced.

8. The set for determining blood type according to any claim 1, wherein

the output section has a first lamp for emitting light when the result of judgment by the judging section is venous blood, and

a second lamp for emitting light when the result of judgment by the judging section is arterial blood.

9. The set for determining blood type according to claim 1, wherein

the blood type determination unit has a power switch;

and

the cover body has a switch operating section which, when the blood type determination unit is placed therein, abuts against the power switch to turn on a power supply for the blood type determination unit.

10. The set for determining blood type according to claim 1, wherein

the puncture tool has a needle body and a syringe, and

the cover body has a syringe holding member for holding the syringe.

11. A cover body which houses therein a blood type determination unit and which is attached to a puncture tool, the blood type determination unit including:

a light projecting section and a light receiving section that are located so as to face each other;

a judging section for determining whether blood between the light projecting section and the light receiving section is venous blood or arterial blood, based on a signal obtained from the light receiving section; and

an output section for outputting the result of judgment by the judging section,

wherein the cover body comprises a measurement section to be attached to the puncture tool such that blood collected by the puncture tool flows into a space between the light projecting section and the light receiving section.