Auto-injector apparatus and methods for sealing a vascular puncture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/08
A61B-017/03
A61M-031/00
출원번호
UP-0806934
(2004-03-22)
등록번호
US-7553319
(2009-07-09)
발명자
/ 주소
Bagaoisan, Celso J.
Domingo, Nicanor
Khosravi, Farhad
Pai, Suresh S.
출원인 / 주소
AccessClosure, Inc.
대리인 / 주소
English, William A.
인용정보
피인용 횟수 :
18인용 특허 :
113
초록▼
Apparatus for sealing a puncture communicating with a blood vessel includes a pair of syringe barrels having sealing components therein, and a plunger assembly biased to slide within the barrels from proximal to distal positions for injecting the components through outlets of the barrels. An auto-i
Apparatus for sealing a puncture communicating with a blood vessel includes a pair of syringe barrels having sealing components therein, and a plunger assembly biased to slide within the barrels from proximal to distal positions for injecting the components through outlets of the barrels. An auto-injector assembly is coupled to the plunger apparatus, and includes a spring mechanism locked in an inactive condition and an actuator activatable to release the spring mechanism, whereupon the spring mechanism automatically advances the plunger assembly towards the distal position to inject the components from the barrels. A valve coupled to the outlets and movable from a first position for mixing and/or reconstituting the sealing components from vials, a second position where the outlets communicate with a delivery line for delivering the sealing components into a puncture, and a third position for closing the outlets.
대표청구항▼
What is claimed is: 1. A method for delivering a sealing compound from a delivery device comprising a pair of barrels including outlets and a plunger assembly slidable within the barrels from a first position to a second position for injecting components out of the barrels through the outlets, the
What is claimed is: 1. A method for delivering a sealing compound from a delivery device comprising a pair of barrels including outlets and a plunger assembly slidable within the barrels from a first position to a second position for injecting components out of the barrels through the outlets, the method comprising: providing sealing components in the barrels with the plunger assembly in the first position; activating an actuator coupled to a spring mechanism to release the spring mechanism, whereupon the spring mechanism directs the plunger assembly towards the second position to inject the sealing components out of the barrels; introducing a delivery sheath into a puncture through tissue; and connecting the barrels to a lumen of the delivery sheath, wherein the actuator is activated after the delivery sheath is introduced into the puncture such that the sealing components are injected from the barrels through the lumen of the delivery sheath and into the puncture, and wherein a retraction assembly is coupled to the delivery sheath, and wherein the plunger assembly triggers a release of the retraction assembly as the plunger assembly slides towards the second position, whereupon the retraction assembly automatically withdraws the delivery sheath at least partially from the puncture to fill at least a portion of the puncture with the sealing components. 2. The method of claim 1, wherein the sealing components are provided in the barrels by: moving a valve coupled to the outlets of the barrels to a first position wherein the outlets communicate with containers comprising sealing components therein; advancing the plunger assembly into the barrels to inject the sealing components in the barrels into the containers to mix the sealing components in the barrels with the sealing components in the containers; and withdrawing the plunger assembly from the barrels to draw mixed sealing components from the containers into the barrels. 3. The method of claim 2, wherein the sealing components in the barrels comprise one or more buffer solutions, and wherein the sealing components in the containers comprise solid polymer precursor components. 4. The method of claim 3, further comprising shaking the containers to dissolve the polymer precursor components in the one or more buffer solutions. 5. The method of claim 1, wherein the barrels are connected to the delivery sheath via a "Y" fitting that mixes the sealing components in the barrels together. 6. The method of claim 1, further comprising: introducing an occlusion member into the puncture until an expandable member on the occlusion member is disposed within a body lumen communicating with the puncture; expanding the expandable member within the body lumen; and manipulating the expandable member to substantially seal the body lumen from the puncture before activating the actuator to inject the sealing components into the puncture. 7. A method for sealing a puncture through tissue using a delivery device comprising a plurality of barrels including outlets and a plunger assembly slidable within the barrels from a first position to a second position for injecting components out of the barrels through the outlets, the barrels including sealing components therein with the plunger assembly in the first position, the method comprising: introducing an occlusion member into the puncture until an expandable member on the occlusion member is disposed within a body lumen communicating with the puncture; expanding the expandable member within the body lumen; manipulating the expandable member to substantially seal the body lumen from the puncture; introducing a delivery sheath into a puncture through tissue; connecting the barrels to a lumen of the delivery sheath; and activating an actuator coupled to a spring mechanism to release the spring mechanism, whereupon the spring mechanism automatically directs the plunger assembly towards the second position to inject the sealing components out of the barrels into the puncture at a substantially continuous rate, wherein a retraction assembly is coupled to the delivery sheath and the occlusion member, and wherein the plunger assembly triggers a release of the retraction assembly as the plunger assembly slides towards the second position, whereupon the retraction assembly automatically withdraws the delivery sheath at least partially from the puncture to fill at least a portion of the puncture with the sealing components. 8. The method of claim 7, wherein the barrels are connected to the delivery sheath via a "Y" fitting that mixes the sealing components in the barrels together. 9. The method of claim 7, further comprising withdrawing the delivery sheath at least partially from the puncture to fill at least a portion of the puncture with the sealing components. 10. The method of claim 7, wherein the spring mechanism has a predetermined spring constant to ensure that the sealing compound is delivered in a desired time before the sealing components gel and cease to flow through the delivery sheath. 11. A method for sealing a puncture through tissue using a delivery device comprising a plurality of barrels including outlets and a plunger assembly slidable within the barrels from a first position to a second position for injecting components out of the barrels through the outlets, the method comprising: providing sealing components in the barrels with the plunger assembly in the first position; introducing a delivery sheath into a puncture through tissue; connecting the barrels to a lumen of the delivery sheath; and activating an actuator coupled to a spring mechanism to release the spring mechanism, whereupon the spring mechanism automatically directs the plunger assembly towards the second position to inject the sealing components out of the barrels into the puncture without pauses during delivery of the components out of the barrels and without requiring further activation of the actuator, wherein a retraction assembly is coupled to the delivery sheath, and wherein the plunger assembly triggers a release of the retraction assembly as the plunger assembly slides towards the second position, whereupon the retraction assembly automatically withdraws the delivery sheath at least partially from the puncture to fill at least a portion of the puncture with the sealing components. 12. The method of claim 11, further comprising: introducing an occlusion member into the puncture until an expandable member on the occlusion member is disposed within a body lumen communicating with the puncture; expanding the expandable member within the body lumen; and manipulating the expandable member to substantially seal the body lumen from the puncture before activating the actuator to inject the sealing components into the puncture. 13. The method of claim 11, wherein the barrels are connected to the delivery sheath via a "Y" fitting that mixes the sealing components in the barrels together. 14. The method of claim 11, further comprising withdrawing the delivery sheath at least partially from the puncture to fill at least a portion of the puncture with the sealing components. 15. The method of claim 11, wherein the spring mechanism has a predetermined spring constant to ensure that the sealing compound is delivered in a desired time before the sealing components gel and cease to flow through the delivery sheath. 16. A method for sealing a puncture through tissue using a delivery device comprising a plurality of barrels including outlets and a plunger assembly slidable within the barrels from a first position to a second position for injecting components out of the barrels through the outlets, the barrels including sealing components therein with the plunger assembly in the first position, the method comprising: introducing an occlusion member into the puncture until an expandable member on the occlusion member is disposed within a body lumen communicating with the puncture; expanding the expandable member within the body lumen; manipulating the expandable member to substantially seal the body lumen from the puncture; introducing a delivery sheath into a puncture through tissue; connecting the barrels to a lumen of the delivery sheath; and activating an actuator coupled to a spring mechanism to release the spring mechanism, whereupon the spring mechanism automatically directs the plunger assembly towards the second position to inject the sealing components out of the barrels into the puncture without pauses during delivery of the components out of the barrels; wherein a retraction assembly is coupled to the delivery sheath and the occlusion member, and wherein the plunger assembly triggers a release of the retraction assembly as the plunger assembly slides towards the second position, whereupon the retraction assembly automatically withdraws the delivery sheath at least partially from the puncture to fill at least a portion of the puncture with the sealing components.
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