Thrombectomy systems and methods for same

1 . A thrombectomy system comprising:

a delivery catheter configured to support one or more thrombectomy instruments, the delivery catheter includes:

a delivery catheter hub; and

a collection catheter having a collection shaft with a collection lumen, the collection shaft is coupled with the delivery catheter hub;

an aspiration flush valve in communication with the collection lumen, the aspiration flush valve includes:

an aspiration port;

a flushing port;

an outlet port in communication with the collection lumen and in selective communication with the aspiration port and the flushing port; and

a valve operator movable relative to the aspiration, flushing and outlet ports, the valve operator includes flushing and aspiration configurations:

in the flushing configuration the outlet port is in communication with the flushing port; and

in the aspiration configuration the outlet port is in communication with the aspiration port through a valve operator aspiration lumen separate from the flushing lumen; and

wherein the delivery catheter hub includes a hemostasis valve, the hemostasis valve includes:

a valve diaphragm configured to seal the collection lumen;

a valve defeater having a spanning element movable relative to the valve diaphragm between interconnecting and arrested configurations:

in the interconnecting configuration the spanning element having a spanning lumen crosses the valve diaphragm and the spanning lumen extends through the valve diaphragm; and

in the arrested configuration the spanning element is retracted from the valve diaphragm.

2 . The thrombectomy system of claim 1 , wherein the valve operator includes an operator shaft, the operator shaft having:

a flush layer including a flush lumen;

an aspiration layer including an aspiration lumen, the flush and aspiration lumens are separate;

wherein in the flushing configuration the flush lumen interconnects the flushing port and the outlet port; and

wherein in the aspiration configuration the aspiration lumen interconnects the aspiration port and the outlet port.

3 . The thrombectomy system of claim 2 , wherein translation of the valve operator relative to the valve body is configured to selectively align the flush layer with the flushing port and the outlet port in the flushing configuration and align the aspiration layer with the aspiration port and the outlet port in the aspiration configuration.

4 . The thrombectomy system of claim 2 , wherein the valve operator includes a locked aspiration configuration:

in the aspiration configuration the valve operator is biased toward the flushing configuration with the outlet port in communication with the aspiration port; and

in the locked aspiration configuration the valve operator is secured with the outlet port in communication with the aspiration port.

5 . The thrombectomy system of claim 4 comprising a valve biasing element configured to bias the valve operator toward the flushing configuration.

6 . The thrombectomy system of claim 4 , wherein one or more of the valve body or the valve operator includes a lock mechanism configured to selectively maintain the valve operator in the locked aspiration configuration.

7 . The thrombectomy system of claim 1 , wherein the aspiration flush valve is proximate to the delivery catheter hub.

8 . The thrombectomy system of claim 1 comprising a thrombectomy catheter movably received within the collection lumen of the collection shaft.

9 . The thrombectomy system of claim 8 , wherein the thrombectomy catheter includes:

a filter shaft; and

one or more collection filters coupled with the filter shaft.

10 . The thrombectomy system of claim 9 , wherein the thrombectomy catheter includes a filter sheath movably coupled over the filter shaft and the one or more collection filters, and the filter sheath is configured to transition the one or more collection filters between compressed and deployed configurations.

11 . The thrombectomy system of claim 9 , wherein the collection shaft of the collection catheter is configured to transition the one or more collection filters between compressed and deployed configurations.

12 . The thrombectomy system of claim 11 comprising the thrombectomy catheter movably received within the collection lumen of the collection shaft, the thrombectomy catheter configured to extend through the collection funnel.

13 . The thrombectomy system of claim 1 , wherein delivery catheter includes:

a collection funnel coupled with the collection shaft; and

a sheath body movably coupled with the delivery catheter hub, the sheath body configured to selectively cover the collection funnel.

14 . The thrombectomy system of claim 1 , wherein the hemostasis valve includes a biasing element coupled with the valve defeater, and the biasing element is configured to bias the valve defeater toward the arrested configuration.

15 . The thrombectomy system of claim 1 , wherein upon release the valve defeater the valve defeater is biased toward the arrested configuration and the valve diaphragm closes around an instrument spanning the valve diaphragm.

16 . The thrombectomy system of claim 1 , wherein in the interconnecting configuration the spanning element having the spanning lumen provides a continuous interface between collection lumen and the spanning lumen.

17 . The thrombectomy system of claim 1 , wherein the valve defeater includes a defeater operator, the spanning lumen extends through the defeater operator, and the valve defeater includes a depressible button biased toward the arrested configuration.

18 . The thrombectomy system of claim 1 , wherein in the interconnecting configuration the spanning lumen of the spanning element is aligned with the collection lumen of the collection catheter.

19 . An aspiration flush valve comprising:

a valve body including:

an aspiration port;

a flushing port; and

an outlet port in selective communication with the aspiration port and the flushing port;

a valve operator movably coupled with the valve body, the valve operator includes a flushing configuration and an aspiration configuration:

in the flushing configuration the outlet port is in communication with the flushing port through a valve operator flushing lumen; and

in the aspiration configuration the outlet port is in releasable communication with the aspiration port through a valve operator aspiration lumen separate from the flushing lumen.

20 . The aspiration flush valve of claim 19 , wherein the valve operator includes a depressible button.

21 . The aspiration flush valve of claim 20 , wherein the depressible button is manually depressed in the aspiration configuration and depressed and locked in the locked aspiration configuration.

22 . The aspiration flush valve of claim 19 , wherein one or more of the valve body or the valve operator includes a lock mechanism configured to selectively maintain the valve operator in the locked aspiration configuration.

23 . The aspiration flush valve of claim 22 , wherein the lock mechanism includes a bayonet channel in one of the valve operator or the valve body and a bayonet flange in the other of the valve body or the valve operator, and the bayonet flange is received in the bayonet channel in the locked aspiration configuration.

24 . The aspiration flush valve of claim 19 , wherein the valve operator includes an operator shaft, the operator shafting having:

a flush layer including a flush lumen;

an aspiration layer including an aspiration lumen;

wherein in the flushing configuration the flush lumen interconnects the flushing port and the outlet port;

wherein in the aspiration and the locked aspiration configurations the aspiration lumen interconnects the aspiration port and the outlet port.

25 . The aspiration flush valve of claim 24 , wherein translation of the valve operator relative to the valve body is configured to align the flush layer with the flushing port and the outlet port in the flushing configuration and align the aspiration layer with the aspiration port and the outlet port in the aspiration and locked aspiration configurations.

26 . The aspiration flush valve of claim 19 comprising a valve biasing element, and in the aspiration configuration the biasing element biases the valve operator toward the flushing configuration.

27 . The aspiration flush valve of claim 26 , wherein in the aspiration configuration ongoing depression of the valve operator overcomes the valve biasing element and maintains the valve operator in the aspiration configuration.

28 . The aspiration flush valve of claim 19 comprising a delivery catheter configured to support one or more thrombectomy instruments, the delivery catheter includes:

a delivery catheter hub coupled with the aspiration flush valve; and

a collection catheter having a collection shaft with a collection lumen, the collection shaft coupled with the delivery catheter hub.

29 . The aspiration flush valve of claim 28 , wherein the aspiration flush valve is proximate to the delivery catheter hub and in communication with the collection lumen.

30 . The aspiration flush valve of claim 28 , wherein the collection shaft is coupled with a collection funnel; and

wherein a sheath body is movably coupled with the delivery catheter hub, the sheath body is configured to selectively cover the collection funnel.

31 . The aspiration flush valve of claim 19 , wherein the valve operator includes a locked aspiration configuration:

in the locked aspiration configuration the valve operator is secured and the outlet port is in communication with the aspiration port.