IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0407395
(2012-02-28)
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등록번호 |
US-8460247
(2013-06-11)
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발명자
/ 주소 |
- Woehr, Kevin
- Zerbes, Michael
|
출원인 / 주소 |
|
대리인 / 주소 |
Klein, O'Neill & Singh, LLP
|
인용정보 |
피인용 횟수 :
27 인용 특허 :
131 |
초록
▼
Catheter assemblies are generally discussed herein with particular discussions extended to catheter assemblies having a tip protector, a valve, a valve opener, and optionally a needle wiper. The valve opener is disposed inside a catheter hub and is configured to be pushed by an IV set luer connector
Catheter assemblies are generally discussed herein with particular discussions extended to catheter assemblies having a tip protector, a valve, a valve opener, and optionally a needle wiper. The valve opener is disposed inside a catheter hub and is configured to be pushed by an IV set luer connector to open a valve following successful catheterization to pass fluids or other solutions through the catheter. A tip protector is incorporated to block the needle tip and prevent the same from accidental needle stick. A wiper is optionally included to wipe blood deposits on the needle when the same is retracted from the catheter.
대표청구항
▼
1. A safety catheter assembly comprising: a catheter hub comprising an interior cavity, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end;a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle
1. A safety catheter assembly comprising: a catheter hub comprising an interior cavity, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end;a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle projecting through the catheter tube and comprising a needle tip;a valve configured to obstruct fluid flow comprising a wall comprising a slit positioned inside the interior cavity of the catheter hub; said valve remaining inside the interior cavity of the catheter hub when the needle is removed from the catheter tube and the catheter hub;a valve actuating element slidingly disposed in the catheter hub and configured to actuate the valve, the valve actuating element comprising a nose section having a tapered end configured to push the valve to open the slit, and an actuating end portion extending proximally of the nose section having a gap to permit fluid flow to flow therethrough and configured to transfer a distally directed force to the nose section to push the valve to open the slit;a needle protective device spaced from the needle tip in a ready position and movable relative to the needle tip to a protective position, at least in part, distally of the needle tip to prevent unintended needle sticks, said needle protective device comprising a third housing; andan arm extending distally of the third housing and removably contacts the catheter hub, said arm located at least in part in the catheter hub in the ready position to prevent premature activation of the needle protective device. 2. The safety catheter assembly of claim 1, wherein the arm is coupled to the third housing and is separate from the needle hub. 3. The safety catheter assembly of claim 1, wherein the valve comprises three slits that converge at a single point. 4. The safety catheter assembly of claim 1, wherein the protective device comprises a proximal wall and an arm extending distally of the proximal wall. 5. The safety catheter assembly of claim 1, wherein the actuating end portion comprises two leg elements defining the gap therebetween. 6. The safety catheter assembly of claim 1, wherein the valve actuating element further comprises a projection located proximally of the tapered nose section and projects radially outwardly of the nose section and engaging a shoulder of the catheter hub. 7. The safety catheter assembly of claim 2, wherein the third housing and the needle hub are movable relative to one another. 8. The safety catheter assembly of claim 1, wherein the needle shaft comprises a nominal diameter and wherein the needle shaft is without a change in the nominal diameter adjacent the needle tip. 9. The safety catheter assembly of claim 1, wherein the needle protective device comprises a resilient portion. 10. The safety catheter assembly of claim 9, wherein the resilient portion is a spring. 11. The safety catheter assembly of claim 1, wherein the valve actuating element remains engaged to the valve to open the slit for fluid flow through the catheter hub. 12. A safety catheter assembly comprising: a first hub comprising an interior cavity, an opening at a proximal end, and a catheter tube having a distal end opening extending distally of the first hub;a needle having a needle shaft defining a needle axis projecting distally of an end of a second hub, said needle projecting through the catheter tube and comprising a needle tip;a valve comprising a slit for obstructing fluid flow positioned inside the interior cavity of the first hub; said valve remaining inside the interior cavity when the needle is removed from the catheter tube and the first hub;a valve actuating element slidingly disposed in the first hub for actuating the valve, the valve actuating element comprising a nose section having a tapered end with an opening configured to push the valve to open the slit and at least two leg elements extending proximally of the nose section and having a gap therebetween; wherein the at least two leg elements with the gap therebetween are disposed distally of the opening at the proximal end of the first hub and are slidable distally by a male implement projecting into the opening of the first hub to transfer a distally directed force to the nose section to push the valve to open the slit;a needle protective device positioned proximally of the valve and at least in part around the needle and distal of a proximal end of the second hub in a ready position and configured to prevent unintended needle sticks in a protective position;wherein an arm extends distally of a third hub and is located at east in part in the first hub in a ready position; andwherein a portion of the needle protective device springs relative to the needle to move to the protective position. 13. The safety catheter assembly of claim 12, wherein the third hub comprises a generally cylindrical cylinder. 14. The safety catheter assembly of claim 12, wherein the valve comprises three slits that converge at a single point. 15. The safety catheter assembly of claim 12, wherein the protective device comprises a proximal wall and an arm extending distally of the proximal wall. 16. The safety catheter assembly of claim 12, wherein the second hub comprises a blood flash back chamber and the third hub is devoid of a blood flash back chamber. 17. The safety catheter assembly of claim 12, wherein the valve actuating element further comprises a projection located proximally of the tapered nose section and projects radially outwardly of the nose section and engaging a shoulder of the first hub. 18. The safety catheter assembly of claim 12, wherein valve comprises one or more ridges along an outer surface to permit venting around the outer surface of the valve. 19. The safety catheter assembly of claim 12, wherein the needle shaft comprises a nominal diameter and wherein the needle shaft is without a change in the nominal diameter adjacent the needle tip. 20. The safety catheter assembly of claim 12, wherein the needle protective device comprises a resilient portion. 21. The safety catheter assembly of claim 20, wherein the resilient portion is a spring. 22. The safety catheter assembly of claim 21, wherein the valve actuating element remains engaged to the valve to open the slit for fluid flow through the first hub. 23. A safety catheter assembly comprising: a catheter hub comprising an interior cavity comprising a shoulder, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end;a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle projecting through the catheter tube and comprising a needle tip;a valve comprising a plurality of slits configured to obstruct fluid flow positioned inside the interior cavity of the catheter hub; said valve remaining inside the interior cavity of the catheter hub when the needle is removed from the catheter tube and the catheter hub;a valve actuating element slidingly disposed in the catheter hub configured to spread the plurality of slits to open the valve, the valve actuating element comprising a nose section having a tapered end, a projection located proximally of the tapered nose section engaging the shoulder of the catheter hub, and an actuating end portion having one or more gaps configured to permit fluid flow to flow therebetween;a needle protective device positioned proximally of the valve and at least in part around the needle and distal of the proximal end of the needle hub in a ready position and configured to prevent unintended needle sticks in a protective position; andwherein an arm coupled to a third hub extends distally of the third hub and into the catheter hub in a ready position and wherein a portion of the protective device springs relative to the needle to move to the protective position. 24. The safety catheter assembly of claim 23, wherein the third hub comprises a generally cylindrical cylinder. 25. The safety catheter assembly of claim 23, wherein the plurality of slits of the valve comprise three slits that converge at a single point. 26. The safety catheter assembly of claim 23, wherein the third hub and the needle hub are movable relative to one another. 27. The safety catheter assembly of claim 23, wherein the needle hub comprises a blood flash back chamber and the third hub is devoid of a blood flash back chamber. 28. The safety catheter assembly of claim 23, wherein valve comprises one or more ridges along an outer surface to permit venting around the outer surface of the valve. 29. The safety catheter assembly of claim 23, wherein the actuating end portion comprises two leg elements defining the one or more gaps therebetween. 30. A safety catheter assembly comprising: a catheter hub comprising an interior cavity comprising a shoulder, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end;a needle having a needle shaft without a change in profile; said needle shaft defining a needle axis projecting distally of an end of a needle hub and through the catheter tube and comprising a needle tip;a valve comprising a plurality of slits configured to obstruct fluid flow positioned inside the interior cavity of the catheter hub; said valve remaining inside the interior cavity of the catheter hub when the needle is removed from the catheter tube and the catheter hub;a valve actuating element slidingly disposed in the catheter hub configured to spread the plurality of slits to open the valve and to remain engaged to the valve, the valve actuating element comprising a nose section having a tapered end, a projection located proximally of the tapered nose section engaging the shoulder of the catheter hub, and at least two spaced apart legs having one or more gaps configured to permit fluid flow to flow therebetween; said at least two spaced apart legs structured to slide distally to transfer a distally directed force to the nose section to open the valve;a needle protective device positioned proximally of the valve and at least in part around the needle and distal of the proximal end of the needle hub in a ready position; said needle protective device is movable relative to the needle tip to a protective position to prevent unintended needle sticks; andwherein an arm coupled to a third hub extends distally of the third hub and into the catheter hub in a ready position and wherein a portion of the protective device springs relative to the needle to move to the protective position.
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