Single insertion delivery system for treating embolism and associated systems and methods

Patent metadata

Field	Value
Publication number	US-12239333-B2
Application number	US-202318497249-A
Country	US
Kind code	B2
Filing date	Oct 30, 2023
Priority date	Jan 26, 2018
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, engaging an interventional device of a catheter system with clot material in a blood vessel and withdrawing the interventional device and the portion of the clot material through a guide catheter. In some embodiments, the catheter system can include an attachment/valve member coupled to a proximal portion of the guide catheter, and the method can include unsealing the attachment/valve member to facilitate withdrawing the interventional device through the attachment/valve member without significant retention of clot material within the attachment/valve member. The method can further include resealing and aspirating the guide catheter before advancing another interventional device to the clot material to again engage and remove clot material from the blood vessel.

First claim

We claim:

1. A clot collection reservoir, comprising:
a housing defining a sealed chamber and having a first housing end portion and a second housing end portion opposite the first housing end portion;
a first port configured to be fluidly coupled to an aspiration catheter, wherein the first port is positioned proximate to the first housing end portion and provides a first fluid path to the chamber;
a second port configured to be fluidly coupled to an aspiration source, wherein the second port provides a second fluid path from the chamber; and
a filter removably positioned within the chamber, wherein the filter has a substantially cylindrical shape extending from a first filter end portion to a second filter end portion, and wherein the filter extends continuously about the first filter end portion such that the filter encloses an interior region around the second port;
wherein the aspiration source is configured to generate negative pressure in the chamber via the second port to (a) draw blood and clot material from the aspiration catheter through the first port into the chamber and (b) draw blood through the filter into the interior region and through the second port;
wherein the filter is configured to inhibit the clot material from passing through the filter into the interior region and through the second port; and
wherein the housing is at least partially transparent to permit visualization of the clot material in the chamber outside the interior region.

2. The clot collection reservoir of claim 1 wherein the second port is positioned proximate to the second housing end portion.

3. The clot collection reservoir of claim 1 , further comprising a cap configured to be releasably coupled to the second housing end portion, wherein the cap is removable from the housing to provide access to the filter.

4. The clot collection reservoir of claim 1 wherein the first filter end portion is curved.

5. The clot collection reservoir of claim 1 wherein the source of aspiration is configured to generate the negative pressure in the chamber via the second port to draw the clot material against the first filter end portion.

6. The clot collection reservoir of claim 1 wherein the housing is entirely transparent, and wherein the first port is integrally formed with the housing.

7. The clot collection reservoir of claim 1 wherein the first filter end portion is positioned closer to the first housing end portion than the second filter end portion, and wherein the second filter end portion is positioned closer to the second housing end portion than the first filter end portion.

8. A clot collection reservoir, comprising:
a housing defining a sealed chamber and having a first housing end portion and a second housing end portion opposite the first housing end portion;
a first port configured to be fluidly coupled to an aspiration catheter, wherein the first port is positioned proximate to the first housing end portion and provides a first fluid path to the chamber;
a second port configured to be fluidly coupled to an aspiration source, wherein the second port provides a second fluid path from the chamber;
a cap configured to be releasably coupled to the second housing end portion; and
a filter coupled to the cap and configured to be positioned when the chamber when the cap is releasably coupled to the second housing end portion, wherein the filter has a substantially cylindrical shape extending from a first filter end portion to a second filter end portion, and wherein the filter extends continuously about the first filter end portion such that the filter encloses an interior region around the second port;
wherein the aspiration source is configured to generate negative pressure in the chamber via the second port to (a) draw blood and clot material from the aspiration catheter through the first port into the chamber and (b) draw blood through the filter into the interior region and through the second port;
wherein the filter is configured to inhibit the clot material from passing through the filter into the interior region and through the second port;
wherein the housing is at least partially transparent to permit visualization of the clot material in the chamber outside the interior region; and
wherein the cap is removable from the housing to provide access to the filter.

9. A clot collection reservoir, comprising:
a housing defining a sealed chamber and having a first housing end portion and a second housing end portion opposite the first housing end portion;
a first port configured to be fluidly coupled to an aspiration catheter, wherein the first port is positioned proximate to the first housing end portion and provides a first fluid path to the chamber;
a second port configured to be fluidly coupled to an aspiration source, wherein the second port provides a second fluid path from the chamber;
a cap configured to be releasably coupled to the second housing end portion; and
a filter positioned within the chamber, wherein the filter has a substantially cylindrical shape extending from a first filter end portion to a second filter end portion, and wherein the filter extends continuously about the first filter end portion such that the filter encloses an interior region around the second port;
wherein the aspiration source is configured to generate negative pressure in the chamber via the second port to (a) draw blood and clot material from the aspiration catheter through the first port into the chamber and (b) draw blood through the filter into the interior region and through the second port;
wherein the filter is configured to inhibit the clot material from passing through the filter into the interior region and through the second port;
wherein the housing is at least partially transparent to permit visualization of the clot material in the chamber outside the interior region; and
wherein the cap and the filter are removable from the housing to provide access to the clot material within the chamber.

10. A clot treatment system, comprising:
an aspiration catheter configured to be intravascularly positioned proximate to clot material within a blood vessel of a patient;
an aspiration source; and
a clot collection reservoir, comprising—
a housing defining a sealed chamber and having a first housing end portion and a second housing end portion opposite the first housing end portion;
a first port configured to be fluidly coupled to the aspiration catheter, wherein the first port is positioned proximate to the first housing end portion and provides a first fluid path to the chamber;
a second port configured to be fluidly coupled to the aspiration source, wherein the second port provides a second fluid path to the chamber; and
a filter positioned within the chamber, wherein the filter has a substantially cylindrical shape extending from a first filter end portion to a second filter end portion, and wherein the filter extends continuously about the first filter end portion such that the filter encloses an interior region around the second port;

wherein the aspiration source is configured to generate negative pressure in the chamber via the second port to (a) draw blood and clot material from the aspiration catheter through the first port into the chamber and (b) draw blood through the filter into the interior region and through the second port;
wherein the filter is configured to inhibit the clot material from passing through the filter into the interior region and through the second port; and
wherein the filter is removably positioned within the chamber to provide access to the clot material within the chamber.

11. The clot treatment system of claim 10 wherein the housing is at

Assignees

• Inari Medical Inc

Inventors

• Quick Richard
• Merritt Benjamin Edward
• Thress John Coleman
• Lubock Paul
• Tu Thomas M

Classifications

• A61B17/221

  Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} · CPC title

• A61M39/06

  Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof · CPC title

• A61B2217/005

  with suction drainage system · CPC title

• A61B2017/00907

  for light · CPC title

• A61B17/22 Primary

  Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for · CPC title