BLOOD COLLECTION APPARATUS

• US 20160015300A1
• Filed: 07/18/2014
• Published: 01/21/2016
• Est. Priority Date: 07/18/2014
• Status: Active Grant

• Current Assignee: Hsien-Tsung Wang
• Original Assignee: Hsien-Tsung Wang
• Inventors: WANG, Hsien-Tsung
• Granted Patent: US 9,737,243 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/1427 Multiple blood sampling, e.g. at periodic or pre-established intervals
• CPC Class Codes: A61B 5/1433 provided with locking means details of syringes A61M5/315
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150221 Valves
• 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 5/150251 Collection chamber divided into at least two compartments, e.g. for division of samples injection syringes having more than one chamber A61M5/19; syringes for injection of two or more media A61M5/2448, A61M5/284; sample preparation for further analysis A61B5/150755
• 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 5/150671 comprising means to impede repositioning of protection sleeve from covering to uncovering position
• CPC Class Codes: A61B 5/15074 Needle sets comprising wings, e.g. butterfly type, for ease of handling
• CPC Class Codes: A61B 5/150992 Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings, valves tubing connectors and couplings A61M39/00
• CPC Class Codes: A61B 5/153 Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
• CPC Class Codes: A61M 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base

Abstract

A blood collection apparatus is provided with a blood collection assembly including blood collection tubes, adapter assemblies each including a first tube extending out of one end and a second tube extending out of the end to insert into one of the blood collection tubes, and a casing tube including a forward nose, connectors each connected to the first tube of each adapter assembly, and a rear flange having a flexible projection; a butterfly needle assembly mounted to the nose of the casing tube; and a plunger slidably disposed in the casing tube and including a forward plug and an elongated arm having cavities. A pulling of the plunger moves the plug rearward and pivots the projection to engage in one cavity so as to flow blood from the tube casing to one blood collection tube via one connector and one adapter assembly.

Claims

1. A blood collection apparatus comprising:

a blood collection assembly comprising a plurality of blood collection tubes, a plurality of adapter assemblies each including a first tube extending out of one end and a second tube extending out of an other end to insert into one of the blood collection tubes, and a casing tube including a forward nose, a plurality of connectors each connected to the first tube of each of the adapter assemblies, and a rear flange having a flexible projection;

a butterfly needle assembly mounted to the nose of the casing tube; and

a plunger slidably disposed in the casing tube and comprising a forward plug and an elongated arm including a plurality of cavities;

wherein in a blood collection operation a pulling of the plunger moves the plug rearward and pivots the projection to engage in one of the cavities so as to flow blood from the tube casing to one of the blood collection tubes via one of the connectors and one of the adapter assemblies.

2. The blood collection apparatus of claim 1, wherein the butterfly needle assembly comprises two wings and a tunnel interconnecting the wings.

3. The blood collection apparatus of claim 1, wherein the butterfly needle assembly further comprises a needle housing, a forward needle mounted to the needle housing, a tubing member having a forward end fastened in the needle housing, and a housing member mounted to a rear end of the tubing member.

4. The blood collection apparatus of claim 2, wherein the butterfly needle assembly further comprises a needle housing, a forward needle mounted to the needle housing, a tubing member having a forward end fastened in the needle housing, and a housing member mounted to a rear end of the tubing member.

5. The blood collection apparatus of claim 3, wherein the butterfly needle assembly further comprises a projecting pivot member formed on the needle housing, and a safety device includes an internally hollowed body having a through hole at one end, the through hole is pivotably put on the pivot member so that the safety device is configured to pivot about the pivot member.

6. The blood collection apparatus of claim 4, wherein the butterfly needle assembly further comprises a projecting pivot member formed on the needle housing, and a safety device includes an internally hollowed body having a through hole at one end, the through hole is pivotably put on the pivot member so that the safety device is configured to pivot about the pivot member.

7. The blood collection apparatus of claim 5, wherein the safety device further comprises an internal space defined by the internally hollowed body and open to one side, and at least one blocking member disposed in the internal space wherein after the blood collection operation, a pivotal movement of the safety device about the pivot member passes the needle through both one side of the internal spaced and the at least one blocking member to be lockingly concealed in the internal space.

8. The blood collection apparatus of claim 5, wherein the safety device further comprises an internal space defined by the internally hollowed body and open to a bottom, and at least one blocking member disposed in the internal space wherein after the blood collection operation, a pivotal movement of the safety device about the pivot member passes the needle through both the bottom of the internal spaced and the at least one blocking member to be lockingly concealed in the internal space.

9. The blood collection apparatus of claim 2, wherein the butterfly needle assembly further comprises a needle housing integrally formed with the tunnel.

10. The blood collection apparatus of claim 3, wherein the butterfly needle assembly further comprises a retaining ring securely put on the needle housing, and a projecting pivot member formed on the retaining ring wherein the through hole is pivotably put on the pivot member so that the safety device is configured to pivot about the pivot member.

11. The blood collection apparatus of claim 7, wherein the safety device further comprises spaced first and second protuberances formed proximate to the through hole, wherein the pivot member comprises a peg formed on an outer surface, and wherein before the blood collection operation, the peg engages the second protuberance, and after the blood collection operation, the peg is stopped by the first protuberance.

12. The blood collection apparatus of claim 8, wherein the safety device further comprises spaced first and second protuberances formed proximate to the through hole, wherein the pivot member comprises a peg formed on an outer surface, and wherein before the blood collection operation, the peg engages the second protuberance, and after the blood collection operation, the peg is stopped by the first protuberance.

13. The blood collection apparatus of claim 10, wherein the safety device further comprises spaced first and second protuberances formed proximate to the through hole, wherein the pivot member comprises a peg formed on an outer surface, and wherein before the blood collection operation, the peg engages the second protuberance, and after the blood collection operation, the peg is stopped by the first protuberance.

14. An arrangement for a blood collection apparatus comprising:

a butterfly needle assembly comprising a needle housing, a pivot member formed on an outer surface of the needle housing, and a forward needle mounted to the needle housing; and

a safety device comprising an internally hollowed body including a through hole at one end, the through hole being pivotably put on the pivot member so that the safety device is configured to pivot about the pivot member.

15. The arrangement for a blood collection apparatus of claim 14, wherein the butterfly needle assembly further comprises two wings and a tunnel interconnecting the wings, and wherein the needle housing is integrally formed with the tunnel.

16. The arrangement for a blood collection apparatus of claim 14, wherein the safety device further comprises an internal space defined by the internally hollowed body and open to a bottom, and at least one blocking member disposed in the internal space wherein after the blood collection operation, a pivotal movement of the safety device about the pivot member passes the needle through both the bottom of the internal spaced and the at least one blocking member to be lockingly concealed in the internal space.

17. An arrangement for a blood collection apparatus comprising:

a butterfly needle assembly comprising a needle housing, a forward needle mounted to the needle housing, a retaining ring securely put on the needle housing, and a projecting pivot member formed on the retaining ring;

a safety device comprising an internally hollowed body including a through hole at one end, the through hole being pivotably put on the pivot member so that the safety device is configured to pivot about the pivot member.

18. The arrangement for a blood collection apparatus of claim 17, wherein the safety device further comprises an internal space defined by the internally hollowed body and open to one side, and at least one blocking member disposed in the internal space wherein after the blood collection operation, a pivotal movement of the safety device about the pivot member passes the needle through both one side of the internal spaced and the at least one blocking member to be lockingly concealed in the internal space.

19. The arrangement for a blood collection apparatus of claim 17, wherein the safety device further comprises an internal space defined by the internally hollowed body and open to a bottom, and at least one blocking member disposed in the internal space wherein after the blood collection operation, a pivotal movement of the safety device about the pivot member passes the needle through both the bottom of the internal spaced and the at least one blocking member to be lockingly concealed in the internal space.

20. The arrangement for a blood collection apparatus of claim 19, wherein the safety device further comprises spaced first and second protuberances formed proximate to the through hole, wherein the pivot member comprises a peg formed on an outer surface, and wherein before the blood collection operation, the peg engages the second protuberance, and after the blood collection operation, the peg is stopped by the first protuberance.