Pressure vented fluid reservoir having a movable septum
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-037/00
A61M-005/142
A61M-039/12
A61M-005/162
A61M-039/00
A61M-039/26
A61M-039/24
A61M-039/10
출원번호
US-0399870
(2012-02-17)
등록번호
US-8864726
(2014-10-21)
발명자
/ 주소
Halili, Edgardo C.
Lorenzen, Eric M.
Yavorsky, Matthew William
출원인 / 주소
Medtronic MiniMed, Inc.
대리인 / 주소
Ingrassia Fisher & Lorenz, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
193
초록▼
Disclosed herein is a fluid infusion device of the type that delivers medication fluid to the body of a patient. The device includes or cooperates with a fluid reservoir, and the device has a sealing assembly to receive and form a fluid seal with the fluid reservoir. A retractable sealing element su
Disclosed herein is a fluid infusion device of the type that delivers medication fluid to the body of a patient. The device includes or cooperates with a fluid reservoir, and the device has a sealing assembly to receive and form a fluid seal with the fluid reservoir. A retractable sealing element surrounding a hollow fluid delivery needle may be used to seal a port of the fluid reservoir. The port may include a pressure vent that is sealed by the retractable sealing element. In one variation, the reservoir includes a moving valve sleeve that holds a septum. The septum moves to allow the reservoir to vent, and to form a seal with the port when the needle pierces the septum. In another variation, the device includes a needleless sealing assembly. In yet other variations, the device uses a needled fluid reservoir.
대표청구항▼
1. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising: a main body section that defines a fluid chamber for the medication fluid;a fluid delivery port coupled to and extending from the main body section, the fluid delivery port co
1. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising: a main body section that defines a fluid chamber for the medication fluid;a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening; anda septum movably coupled to the fluid delivery port, the septum being movable between a sealed position where the septum forms a circumferential seal around the port opening, and a vented position that permits fluid to flow out of the fluid delivery port via the port opening; anda valve sleeve movably coupled to the fluid delivery port, wherein the septum is coupled to the valve sleeve in a fixed position relative to the valve sleeve, and wherein the valve sleeve comprises: an attachment receptacle that receives the fluid delivery port, the attachment receptacle being sized to accommodate translational movement of the valve sleeve relative to the fluid delivery port; anda septum receptacle adjacent to the attachment receptacle, wherein the septum receptacle receives and holds the septum in the fixed position. 2. The fluid reservoir of claim 1, wherein the medication fluid comprises insulin. 3. The fluid reservoir of claim 1, further comprising a filling port in fluid communication with the fluid chamber to accommodate filling of the fluid chamber with the medication fluid. 4. The fluid reservoir of claim 1, wherein the valve sleeve further comprises a sleeve opening adjacent to the septum receptacle, and wherein at least a portion of the septum is accessible via the sleeve opening. 5. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising: a main body section that defines a fluid chamber for the medication fluid;a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening; anda septum movably coupled to the fluid delivery port, the septum being movable between a sealed position where the septum forms a circumferential seal around the port opening, and a vented position that permits fluid to flow out of the fluid delivery port via the port opening, wherein the septum is urged into the sealed position when the fluid reservoir is engaged with a fluid delivery needle of the fluid infusion device. 6. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising: a main body section that defines a fluid chamber for the medication fluid;a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening; anda septum movably coupled to the fluid delivery port, the septum being movable between a sealed position where the septum forms a circumferential seal around the port opening, and a vented position that permits fluid to flow out of the fluid delivery port via the port opening, wherein the septum moves into the vented position in response to a pressure differential condition where pressure in the fluid chamber exceeds ambient pressure. 7. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising: a main body section that defines a fluid chamber for the medication fluid;a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening;a valve sleeve movably coupled to the fluid delivery port, wherein the fluid delivery port and the valve sleeve cooperate to accommodate translational movement of the valve sleeve relative to the fluid delivery port; anda septum located within the valve sleeve and movable in concert with the valve sleeve between a sealed position and a vented position. 8. The fluid reservoir of claim 7, wherein the septum forms a circumferential seal around the port opening when the valve sleeve is in the sealed position. 9. The fluid reservoir of claim 7, wherein the septum permits fluid to flow out of the fluid delivery port via the port opening when the valve sleeve is in the vented position. 10. The fluid reservoir of claim 7, wherein the septum is coupled to the valve sleeve in a fixed position relative to the valve sleeve. 11. The fluid reservoir of claim 7, wherein the valve sleeve is urged into the sealed position when the septum is engaged with a fluid delivery needle of the fluid infusion device. 12. The fluid reservoir of claim 7, wherein the valve sleeve moves into the vented position in response to a pressure differential condition where pressure in the fluid chamber exceeds ambient pressure. 13. A fluid infusion device that delivers a medication fluid to a body, the fluid infusion device comprising: a base plate;a hollow fluid delivery needle coupled to the base plate to provide a fluid flow path for the medication fluid; anda fluid reservoir comprising: a main body section that defines a fluid chamber for the medication fluid;a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening;a valve sleeve movably coupled to the fluid delivery port, wherein the fluid delivery port and the valve sleeve cooperate to accommodate translational movement of the valve sleeve relative to the fluid delivery port; anda septum located within the valve sleeve and movable in concert with the valve sleeve between a sealed position and a vented position. 14. The fluid infusion device of claim 13, wherein the septum is coupled to the valve sleeve in a fixed position relative to the valve sleeve. 15. The fluid infusion device of claim 13, wherein the septum moves into the vented position in response to a pressure differential condition where pressure in the fluid chamber exceeds ambient pressure. 16. The fluid infusion device of claim 13, wherein the septum permits fluid to flow out of the fluid delivery port via the port opening when the septum is in the vented position.
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