Method of making catheter assembly with seal member
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-025/00
A61M-025/06
A61M-025/01
출원번호
US-0190017
(2016-06-22)
등록번호
US-10080867
(2018-09-25)
발명자
/ 주소
Goral, David J.
Roehl, Christopher D.
Muskatello, James M.
Munavalli, Mahesh
Michaud, Jocelyn C.
출원인 / 주소
SMITHS MEDICAL ASD, INC.
대리인 / 주소
Snell & Wilmer L.L.P.
인용정보
피인용 횟수 :
0인용 특허 :
62
초록▼
A catheter assembly includes a catheter hub defining an interior cavity and a catheter tube extending distally thereof. A rigid actuator is positioned to extend proximally in the interior cavity and support a seal member positioned thereon in the interior cavity. The seal member includes a central m
A catheter assembly includes a catheter hub defining an interior cavity and a catheter tube extending distally thereof. A rigid actuator is positioned to extend proximally in the interior cavity and support a seal member positioned thereon in the interior cavity. The seal member includes a central membrane, a distal portion, and a proximal portion. An hourglass shaped actuator cavity is formed in the distal portion and receives a barbed end of the actuator. The outer surface of the seal member is in partial circumferential engagement with the catheter hub to define an air path that allows fluid communication between areas of the interior cavity distal and proximal of the seal member. The seal member may be configured for multi-use and include a biasing member that moves the seal member to force the membrane back over the actuator to close the membrane.
대표청구항▼
1. A catheter assembly comprising: a catheter hub having a proximal end and a distal end defining an interior cavity therebetween, with a catheter tube extending distally from the catheter hub distal end; anda rigid actuator secured to the catheter hub distal end and extending proximally in the inte
1. A catheter assembly comprising: a catheter hub having a proximal end and a distal end defining an interior cavity therebetween, with a catheter tube extending distally from the catheter hub distal end; anda rigid actuator secured to the catheter hub distal end and extending proximally in the interior cavity of the catheter hub from the catheter hub distal end, disposed in the interior cavity of the catheter hub and having a free end, the actuator having a barb at the free end. 2. The catheter assembly of claim 1, the barb of the actuator being completely contained within the actuator cavity and having an outer cross dimension larger than a cross dimension of the sealing outlet bore. 3. The catheter assembly of claim 1, wherein the actuator comprises a shaft extending between the distal end of the catheter hub and the barb, the shaft including an eyelet portion at one end thereof adapted to secure the catheter tube to the catheter hub. 4. The catheter assembly of claim 1, wherein the actuator further comprises a surface feature to enhance securement of the actuator to the catheter hub. 5. A catheter assembly comprising: a catheter hub having a proximal end and a distal end, with an inner surface extending therebetween and defining an interior cavity of the catheter hub, and a catheter tube extending distal to the catheter hub distal end;an actuator disposed in the interior cavity of the catheter hub and having a free end, the catheter tube being assembled between the actuator and the catheter hub; anda seal member disposed in the interior cavity of the catheter hub and supported on the actuator, the seal member having a membrane and a distal portion extending distally from the membrane to a sealing outlet bore, the distal portion having an actuator cavity therein between the membrane and the sealing outlet bore, the actuator extending through the sealing outlet bore into the actuator cavity, andthe seal member further having an outer surface in partial circumferential engagement with the catheter hub inner surface such that an air path is maintained between areas of the interior cavity distal and proximal of the seal member. 6. The catheter assembly of claim 5, the seal member including at least one groove axially extending along the seal member outer surface, the seal member outer surface in circumferential engagement with the catheter hub inner surface except in an area of the groove, the groove defining at least a portion of the air path. 7. The catheter assembly of claim 5, a portion of the seal member outer surface being spaced from a confronting portion of the catheter hub inner surface to define at least a portion of the air path. 8. The catheter assembly of claim 5, wherein the membrane is normally closed to seal the actuator cavity, the seal member being axially slidable along the actuator to force the membrane over the free end of the actuator and open the membrane. 9. The catheter assembly of claim 8, wherein the proximal flange of the actuator is completely contained with the actuator cavity and having an outer cross dimension larger than a cross dimension of the sealing outlet bore. 10. The catheter assembly of claim 8, wherein the membrane is slit to define slit flaps adapted to distend as the membrane is forced over the free end of the actuator. 11. The catheter assembly of claim 5, wherein the actuator comprises a shaft sized to fit sealingly within the sealing outlet bore. 12. The catheter assembly of claim 5, wherein the seal member comprises a proximal portion extending proximally from the membrane and sized to present an impact surface to a free end of a luer taper, such that insertion of the luer taper into the catheter hub interior cavity impacts the impact surface of the seal member causing the seal member to slide axially along the actuator. 13. An actuator for a catheter assembly comprising: a cylindrical shaft between a proximal free end and a distal end, the cylindrical shaft having a first cross dimension, an eyelet portion at the distal end of the cylindrical shaft having an eyelet shaft of a second cross dimension, and a barb at the proximal free end of the cylindrical shaft, the barb including an enlarged flange folding back over a portion of the cylindrical shaft and diverging in a distal direction to define a frustoconical outer surface being radially outward of the cylindrical shaft and defining a third cross dimension, the third cross dimension being larger than the first and second cross dimensions and smaller than an inner diameter of an inner wall of a catheter hub of said catheter assembly, and being configured to extend through a normally-closed slit in a seal membrane provided within said catheter hub, the second cross dimension being closely sized to and less than a diameter of a needle cannula to be used with said catheter assembly and to secure the eyelet portion to said catheter hub. 14. The actuator of claim 13, wherein the second cross dimension is smaller than the first cross dimension. 15. The actuator of claim 13, further comprising a surface feature. 16. The actuator of claim 15, wherein the surface feature comprises at least one of an annular rib, a dimple, an annular groove, and an axial groove. 17. The actuator of claim 13, wherein the eyelet portion comprises a head that merges into the cylindrical shaft distal end. 18. The actuator of claim 13, wherein at least one of the cylindrical shaft, the eyelet portion, and the barb comprises metal.
Weisberg Warren (2406 Grant Evanston IL 60201), Method of making a tear line-forming perforation in a sealed marginal portion of a bag and a sealed bag formed thereby.
Newgard Kent W. (1931 Beverly Glen Dr. Santa Ana CA 92705) Gordon Mark G. (13591 Malena Dr. Tustin CA 92680), Self-occluding intravascular cannula assembly.
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