KR-102962610-B1 - Multi-chamber blood collection device and related system and method

Abstract

A blood collection device (10) may include a tubular container (12), which may include a closed end (14) and an open end (16) opposite the closed end. The blood collection device may include a plug (18) that seals the open end and a partition (20) inside the tubular container. The partition may separate the tubular container into a first chamber (22) and a second chamber (24). The first chamber and the second chamber may be emptied so that the pressure inside the first chamber and the pressure inside the second chamber are lower than the ambient pressure and equal to each other. In response to blood flowing into the first chamber, the pressure inside the first chamber may increase, and the partition may slide toward the closed end so that the size of the first chamber increases and the size of the second chamber decreases.

Inventors

• 하딩 웨스턴 에프.

Assignees

• 벡톤 디킨슨 앤드 컴퍼니

Dates

Publication Date

20260507

Application Date

20201007

Priority Date

20201005

Claims (20)

1. As a blood collection device, the blood collection device is: A tubular container comprising a closed end and an open end opposite the closed end; A plug that seals the above-mentioned open end; and Includes a partition inside the above-mentioned tubular container, A blood collection device wherein the above partition separates the above tubular container into a first chamber and a second chamber, the first chamber and the second chamber are evacuated such that the pressure inside the first chamber and the pressure inside the second chamber are lower than the surrounding pressure, and the size of the first chamber and the size of the second chamber are the same before blood collection.
2. In paragraph 1, A blood collection device in which the above partition is impermeable to air, and the first chamber and the second chamber are airtight.
3. In paragraph 2, A blood collection device, wherein the first chamber is close to the plug and the second chamber is close to the closed end.
4. In paragraph 2, A blood collection device in which the pressure inside the first chamber and the pressure inside the second chamber are the same.
5. delete
6. In paragraph 3, A blood collection device in which, in response to blood flowing into the first chamber, the pressure inside the first chamber increases, and the partition slides toward the closed end so that the size of the first chamber increases and the size of the second chamber decreases.
7. In paragraph 1, A blood collection device wherein the above partition includes a rubber plug, and the outer circumference of the rubber plug contacts the tubular container to form a seal.
8. In paragraph 1, A blood collection device comprising a body and an O-ring coupled to the outer circumference of the body, wherein the O-ring contacts the tubular container to form a seal.
9. In paragraph 1, A blood collection device further comprising a lubricant disposed between the above partition and the above tubular container.
10. In paragraph 1, A blood collection device comprising another partition and a third chamber, wherein the second chamber is disposed between the partition and the other partition, and the first chamber, the second chamber, and the third chamber are emptied such that the pressure inside the first chamber, the pressure inside the second chamber, and the pressure inside the third chamber are lower than the ambient pressure, and the partition and the other partition are impermeable to air, and the first chamber, the second chamber, and the third chamber are airtight.
11. In paragraph 1, A blood collection device comprising an inner portion and an outer portion surrounding the inner portion, wherein the inner portion has a first durometer and the outer portion has a second durometer, and the first durometer is larger than the second durometer.
12. delete
13. delete
14. delete
15. delete
16. delete
17. delete
18. delete
19. delete
20. delete

Description

Multi-chamber blood collection device and related system and method The present disclosure generally relates to a multi-chamber blood collection device, related systems, and methods. An evacuated blood collection tube includes a test tube with a rubber stopper at one end. In an evacuated blood collection tube, all or part of the air is removed from the test tube so that the pressure inside the evacuated blood collection tube is lower than the ambient pressure. These evacuated blood collection tubes are often referred to as internal vacuum or vacuum tubes. A commonly used evacuated blood collection tube is the VACUTAINER blood collection tube available from Becton Dickinson & Company. To collect a blood sample from a patient, the clinician first accesses the patient's vein using a needle or catheter. An adapter is attached to the needle or catheter. The adapter includes an additional needle that penetrates the rubber stopper of the empty blood collection tube. When the rubber stopper is penetrated, the pressure inside the vein becomes higher than the pressure inside the empty blood collection tube; this forces blood into the empty blood collection tube, thereby filling it with blood. As the empty blood collection tube fills until the pressure inside the tube equals the pressure inside the vein, the vacuum inside the tube decreases, and blood flow is stopped. When blood is drawn into the empty blood collection tube, red blood cells are under high shear stress and are susceptible to hemolysis. The subject matter claimed herein is not limited to embodiments that address any disadvantages or operate only in environments such as those described above. Rather, this background is provided to illustrate an exemplary technical area in which some of the embodiments described herein may be practiced. The present disclosure generally relates to a multi-chamber blood collection device, related systems and methods. In some embodiments, the blood collection device may include a tubular vessel, which may include a closed end and an open end opposite the closed end. In some embodiments, the blood collection device may include a plug sealing the open end and a partition inside the tubular vessel between the open end and the closed end. In some embodiments, the partition may separate the tubular vessel into a first chamber and a second chamber. In some embodiments, the first chamber and the second chamber may be emptied such that the pressure inside the first chamber and the pressure inside the second chamber are lower than the ambient pressure. In some embodiments, the partition may be impermeable to air, and the first chamber and the second chamber may be airtight. In some embodiments, the first chamber may be close to the plug, and the second chamber may be close to the closed end. In some embodiments, the pressure inside the first chamber and the pressure inside the second chamber may be the same. In some embodiments, the size of the first chamber and the size of the second chamber may be approximately the same. In some embodiments, the partition may generally be placed in the middle of the tubular container. In some embodiments, in response to blood flowing into the first chamber, the pressure inside the first chamber may increase, and the partition may slide toward the closed end so that the size of the first chamber increases and the size of the second chamber decreases. In some embodiments, the partition may include a plug. In some embodiments, the partition may be made of rubber or any suitable material. In some embodiments, the outer circumference of the body of the partition may contact the tubular container to form a seal. In other embodiments, the partition may include an O-ring which may be attached to the outer circumference of the body of the partition and may contact the tubular container to form a seal. In some embodiments, a lubricant may be disposed between the partition and the tubular container. In some embodiments, the partition may include an inner portion and an outer portion surrounding the inner portion. In some embodiments, the inner portion has a first durometer, and the outer portion has a second durometer. In some embodiments, the first durometer may be larger than the second durometer. In some embodiments, the blood collection device may include another partition and a third chamber. In some embodiments, the second chamber may be positioned between the partition and the other partition. In some embodiments, the third chamber may be emptied such that the pressure inside the third chamber is lower than the ambient pressure and equal to the pressure inside the first chamber and the pressure inside the second chamber. In some embodiments, the other partition may be impermeable to air, and the third chamber is airtight. In some embodiments, the blood collection method may include the step of inserting a needle of a blood collection set into the vascular system of a patient and the step of connecting