Sintered porous polymeric caps and vents for components of medical devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-039/16
A61M-039/20
A61L-002/20
A61L-031/14
A61L-031/04
A61L-002/18
A61M-005/31
A61M-005/32
A61M-005/14
A61M-039/00
출원번호
US-0141872
(2013-12-27)
등록번호
US-9533136
(2017-01-03)
발명자
/ 주소
Midgette, William G.
Mao, GuoQiang
Robbins, Avi
Chan, Jack
출원인 / 주소
Porex Corporation
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
0인용 특허 :
17
초록▼
The present application provides a device and methods of making and using these devices. The devices comprise porous caps and porous vents made from sintered porous polymeric media comprising plastic particles, elastomeric particles or a combination thereof. These devices are used with medical devic
The present application provides a device and methods of making and using these devices. The devices comprise porous caps and porous vents made from sintered porous polymeric media comprising plastic particles, elastomeric particles or a combination thereof. These devices are used with medical devices or components thereof to provide ease of use, resistance to infection, sterilization and venting.
대표청구항▼
1. A device for covering an opening of a medical device, the device comprising a sintered porous cap body comprising a device cooperating end integral with a porous closed end, the entirety of the sintered porous cap body comprising a combination of plastic particles and elastomeric particles produc
1. A device for covering an opening of a medical device, the device comprising a sintered porous cap body comprising a device cooperating end integral with a porous closed end, the entirety of the sintered porous cap body comprising a combination of plastic particles and elastomeric particles producing a substantially uniform mixture that is sintered in a mold in the shape of the cap body, the porous cap having a porosity of between 10% to about 90% after sintering such that sterilizing gas can pass through the porous cap, the porous closed end providing a physical cover over the opening of the medical device in use, the porous cap comprising a bacterial filtration efficiency of over 95% based on the ASTM 2101 test method and an air flow having a Gurley number less than 200 seconds measured using the TAPPI T460 method. 2. The device of claim 1, further comprising an antimicrobial additive, a color change indicator, an antiseptic, an absorbent material or a combination thereof. 3. The device of claim 1, wherein the sintered porous cap is configured to be screwed onto an access port, capped onto an access port by stretching, or plugged into an access port by a frictional fit. 4. The device of claim 1, wherein the sintered porous cap permits sterilizing gas to pass through the porous cap and contact the portion of the medical device. 5. The device of claim 1, wherein the medical device is a liquid access port. 6. The device of claim 5, wherein the liquid access port has a luer fitting or a connector. 7. The device of claim 5, wherein the liquid access port is connected to an intravascular line, a cerebrovascular line, a gastrointestinal line, a peripherally inserted central catheter, a urinary catheter, a drainage tube, a shunt, a PEG tube, a PEG-J tube, a nasogastric tube, or an endotracheal tube or another tube. 8. The device of claim 1, wherein the sintered porous cap prevents microbes from entering the medical device, thereby retarding or preventing microbial contamination of the medical device. 9. The device of claim 1, wherein the sintered porous cap comprises an average pore size ranging from about 1 μm to about 200 μm. 10. The device of claim 1, wherein the sintered porous cap comprises a density ranging from about 0.1 g/cm3 to about 1 g/cm3. 11. The device of claim 1, wherein the sintered porous cap comprises a polyolefin. 12. The device of claim 11, wherein the polyolefin comprises polyethylene, ultrahigh molecular weight polyethylene, or high density polyethylene. 13. The device of claim 1, wherein the medical device is a liquid access port, connector, line, catheter or tube selected from the group consisting of an intravascular line, a cerebroventricular line, a gastrointestinal line, a peripherally inserted central catheter, a urinary catheter, a drainage tube, a shunt, a PEG tube, a PEG-J tube, a nasogastric tube, and an endotracheal tube. 14. The device of claim 1, wherein the device cooperating end comprises an attachment feature for attachment of the sintered porous cap body to the opening of the medical device. 15. The device of claim 14, wherein the attachment feature comprises threads, a stretchable cap portion, a friction fit portion, or a snap fit and lock mechanism. 16. A device for covering an opening of a medical device, the device comprising a sintered porous cap body comprising a device cooperating end integral with a porous closed end, the entirety of the sintered porous cap body comprising a combination of plastic particles and elastomeric particles wherein the sintered porous cap comprises an average pore size ranging from about 1 μm to about 200 μm, the porous closed end providing a physical cover over the opening of the medical device in use, the porous cap comprising a bacterial filtration efficiency of over 95% based on the ASTM 2101 test method and an air flow having a Gurley number less than 200 seconds measured using the TAPPI T460 method. 17. A device for covering an opening and side portions of a medical device, the device comprising a sintered porous cap body comprising a device cooperating end integral with a porous closed end, the entirety of the sintered porous cap body comprising a combination of plastic particles and elastomeric particles, wherein the sintered porous cap comprises a porosity that permits sterilizing gas to pass through the porous cap and contact the opening and side portions of the medical device, the porous cap comprising a bacterial filtration efficiency of over 95% based on the ASTM 2101 test method and an air flow having a Gurley number less than 200 seconds measured using the TAPPI T460 method.
Morman Michael T. (Alpharetta GA) Greene Sharon L. (Alpharetta GA) Pazos Jose F. (Roswell GA) Rodriguez Augusto (Roswell GA), Meltblown superabsorbent thermoplastic compositions.
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