IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0119351
(2008-05-12)
|
등록번호 |
US-8366684
(2013-02-05)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Becton, Dickinson and Company
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
68 |
초록
▼
An apparatus to control blood flow through an intravenous catheter in accordance with the present invention may include a substantially resilient helical outer shell and an inner valve portion formed therein. The inner valve portion may be configured to open upon compressing the substantially resili
An apparatus to control blood flow through an intravenous catheter in accordance with the present invention may include a substantially resilient helical outer shell and an inner valve portion formed therein. The inner valve portion may be configured to open upon compressing the substantially resilient helical outer shell. In some embodiments, the inner valve portion may include mating portions that substantially align to provide fluid leakage therebetween. Compressing the substantially resilient helical outer shell by, for example, inserting a Luer device into a catheter adapter containing the substantially resilient outer shell, may cause the mating portions to misalign, thereby creating a fluid path.
대표청구항
▼
1. A septum to control blood flow through an intravenous catheter, the septum comprising: an outer shell having an inner surface, an outer surface, a first lateral edge, and a second lateral edge, the outer shell being wrapped in a substantially helical shape, the outer shell being movable between a
1. A septum to control blood flow through an intravenous catheter, the septum comprising: an outer shell having an inner surface, an outer surface, a first lateral edge, and a second lateral edge, the outer shell being wrapped in a substantially helical shape, the outer shell being movable between an uncompressed state in which the first lateral edge is positionally skewed from the second lateral edge and a compressed state in which the second lateral edge and the first lateral edge are aligned; andan inner valve coupled to the inner surface, the inner valve being closed when the outer shell is in the uncompressed shape, the inner valve being open when the outer shell is in the compressed state. 2. The septum of claim 1, wherein the outer shell comprises an substantially resilient elastomeric material. 3. The septum of claim 2, wherein the elastomeric material comprises silicone rubber. 4. The septum of claim 1, wherein the inner valve further comprises a first mating portion and a second mating portion that substantially align when the outer shell is in the uncompressed state. 5. The septum of claim 4, wherein a surface of the first mating portion is misaligned with a surface of the second mating portion when the outer shell is in the compressed state. 6. The septum of claim 4, wherein the first and second mating portions are configured to accommodate passage of a needle therebetween. 7. The septum of claim 1, wherein the outer shell is configured to be retained within a catheter adapter. 8. The septum of claim 7, wherein a position of the septum within the catheter adapter permits access to the outer shell via a Luer device inserted into an opening of the catheter adapter, wherein the Luer device compresses the outer shell from the uncompressed state to the compressed state. 9. The septum of claim 8, wherein in the compressed state a portion of the outer shell translates within the catheter adapter towards a catheter coupled to an end of the catheter adapter. 10. A method to control blood flow through an intravenous catheter, the method comprising: Providing an outer shell having an inner surface, an outer surface, a first lateral edge, and a second lateral edge, the outer shell being wrapped in a substantially helical shape, the outer shell being movable between an uncompressed state in which the first lateral edge is positionally skewed from the second lateral edge and a compressed state in which the second lateral edge and the first lateral edge are aligned;coupling an inner valve to the inner surface of the outer shell, the inner valve being closed when the outer shell is in the uncompressed shape, the inner valve being open when the outer shell is in the compressed state; andpositioning the outer shell within a catheter adapter such that a portion of the outer shell is accessible to a Luer device inserted into the catheter adapter, wherein the Luer device compresses the outer shell to substantially align the first and second lateral edges thereby opening a fluid pathway through the inner valve. 11. The method of claim 10, wherein the inner valve comprises a first mating portion and a second mating portion that substantially align when the outer shell is in the uncompressed state. 12. The method of claim 11, wherein when the outer shell is in the compressed state, the first and second mating portions misalign to create a fluid path. 13. The method of claim 11, wherein the first and second mating portions comprise a substantially resilient elastomeric material. 14. The method of claim 13, wherein the first and second mating portions are configured to selectively deform to permit passage of a needle therebetween. 15. The method of claim 10, wherein the outer shell comprises an elastomeric material. 16. The method of claim 10, further comprising inserting the Luer device into an opening of the catheter adapter to contact and compress the outer shell. 17. The method of claim 16, wherein upon compressing the outer shell with the inserted Luer device, at least a portion of the outer shell translates within the catheter adapter towards a catheter coupled to an end of the catheter adapter. 18. A septum to control blood flow through an intravenous catheter, the septum comprising: a outer shell having an inner surface and an outer surface, the outer shell being wrapped in a substantially helical shape, the outer shell being movable between an uncompressed state and a compressed state; andan inner valve coupled to the inner surface, the inner valve having a first mating portion and a second mating portion that are substantially aligned when the outer shell is in the uncompressed state and that are misaligned when the outer shell is in the compressed state. 19. The septum of claim 18, wherein the outer shell further has a first lateral edge and a second lateral edge, in the uncompressed state the first lateral edge is positionally skewed from the second lateral edge and in the compressed state the second lateral edge and the first lateral edge are aligned. 20. The septum of claim 18, wherein the outer shell is configured to be retained within a catheter adapter.
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