최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0032858 (2013-09-20) |
등록번호 | US-9174019 (2015-11-03) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 7 인용 특허 : 472 |
A split-tip catheter for placement within the vasculature of a patient and for use in hemodialysis or other suitable procedures is disclosed. In one embodiment, the split-tip catheter includes a catheter body that defines a first lumen and a second lumen. The catheter body further comprises a split
A split-tip catheter for placement within the vasculature of a patient and for use in hemodialysis or other suitable procedures is disclosed. In one embodiment, the split-tip catheter includes a catheter body that defines a first lumen and a second lumen. The catheter body further comprises a split distal region, including a venous segment and an arterial segment. The venous segment includes a recess extending proximally of a nose portion; and a lateral opening in fluid communication with the first lumen. The arterial segment also includes a lateral opening, is separate from the venous segment, and is removably seatable in the recess provided by the venous segment. In one embodiment, the distal region is un-split, but includes symmetrically opposed lateral openings, as well as distal openings, in communication with the first and second lumens for providing a functional stagger for blood flow in both forward and reverse catheter flow directions.
1. A catheter for vascular insertion, comprising: a catheter body including an outer wall enclosing a first lumen and a second lumen, the first lumen separated from the second lumen by a septum;an atraumatic nose portion at a distal end of the catheter body, the atraumatic nose portion defining a fi
1. A catheter for vascular insertion, comprising: a catheter body including an outer wall enclosing a first lumen and a second lumen, the first lumen separated from the second lumen by a septum;an atraumatic nose portion at a distal end of the catheter body, the atraumatic nose portion defining a first distal opening in fluid communication with the first lumen and a second distal opening in fluid communication with the second lumen;a first lateral opening in fluid communication with the first lumen at the distal end of the catheter body proximal to the atraumatic nose portion, the first lateral opening defined by a skive cut through the outer wall of the catheter body, the skive cut defined by: a first cut at an angle relative to a longitudinal axis of the catheter body in a range from about 20 degrees to about 90 degrees; anda second cut at an angle relative to a plane through the septum of about 45 degrees or less;a second lateral opening in fluid communication with the second lumen at the distal end of the catheter body proximal to the atraumatic nose portion. 2. The catheter according to claim 1, wherein the first cut is about 30 degrees, and wherein the second cut is about 25 degrees. 3. The catheter according to claim 1, wherein the first cut is about 35 degrees, and wherein the second cut is about 25 degrees. 4. The catheter according to claim 1, wherein the first cut is about 30 degrees, and wherein the second cut is about 15 degrees. 5. The catheter according to claim 1, wherein the first cut is about 35 degrees, and wherein the second cut is about 15 degrees. 6. The catheter according to claim 1, wherein the second lateral opening is defined by a skive cut through the outer wall of the catheter body, the skive cut defined by: a third cut at an angle relative to a longitudinal axis of the catheter body in a range from about 20 degrees to about 90 degrees; anda fourth cut at an angle relative to a plane through the septum of about 45 degrees or less. 7. The catheter according to claim 6, wherein the second lateral opening is positioned at about a same longitudinal location at the distal end of the catheter body as the first lateral opening. 8. The catheter according to claim 7, wherein the first lateral opening and the second lateral opening are each sized to accommodate an entirety of fluid flow through the respective first lumen and second lumen. 9. The catheter according to claim 7, wherein the first lateral opening is positioned with respect to the second lateral opening such that fluid exiting the catheter body through the first lateral opening is imparted a flow direction that is substantially opposite in a radial direction and substantially similar in a longitudinal direction to fluid exiting the catheter body through the second lateral opening. 10. The catheter according to claim 1, wherein the second lateral opening is longitudinally staggered with respect to the first lateral opening. 11. The catheter according to claim 10, further including a side hole in fluid communication with the second lumen positioned distal of the second lateral opening. 12. The catheter according to claim 1, wherein a cross-sectional shape of one of the first lumen and the second lumen transitions at a transition region from a “D” shape to an oval shape. 13. The catheter according to claim 12, wherein the transition region is proximal to the first lateral opening and the second lateral opening.
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