公开(公告)号：US10588656B2

公开(公告)日：2020-03-17

申请号：US16006747

申请日：2018-06-12

Applicant: Penumbra, Inc.

Inventor： Nicole Trosper ,  Holly Sit ,  Kathleen Lockhart ,  Stephany Lai

IPC: A61B17/3207 ,  A61B17/00

Abstract: A target substance, such as a thrombus, is removed from a patient's body via minimally invasive technique. A catheter is maneuvered and positioned near the target substance. The catheter may have a soft, atraumatic tip constructed from a metallic backbone covered by a polymer. Target substances are drawn into the catheter via an aspiration source. Near the catheter's distal end, a blade and opposing surface are housed within the catheter, and the blade moves relative to the opposing surface within the catheter lumen in order to fragment the target substance. The substances are fragmented within the catheter into discreet and relatively uniform particles. The aspiration source, which helps ensnare target substances, also serves to evacuate the substance fragments from the patient's body.

公开(公告)号：US11497523B2

公开(公告)日：2022-11-15

申请号：US16783872

申请日：2020-02-06

Applicant: Penumbra, Inc.

Inventor： Nicole Trosper ,  Holly Sit ,  Kathleen Lockhart ,  Stephany Lai

IPC: A61B17/3207 ,  A61B17/00

Abstract: A target substance, such as a thrombus, is removed from a patient's body via minimally invasive technique. A catheter is maneuvered and positioned near the target substance. The catheter may have a soft, atraumatic tip constructed from a metallic backbone covered by a polymer. Target substances are drawn into the catheter via an aspiration source. Near the catheter's distal end, a blade and opposing surface are housed within the catheter, and the blade moves relative to the opposing surface within the catheter lumen in order to fragment the target substance. The substances are fragmented within the catheter into discreet and relatively uniform particles. The aspiration source, which helps ensnare target substances, also serves to evacuate the substance fragments from the patient's body.

公开(公告)号：US20190142452A1

公开(公告)日：2019-05-16

申请号：US16006747

申请日：2018-06-12

Applicant: Penumbra, Inc.

Inventor： Nicole Trosper ,  Holly Sit ,  Kathleen Lockhart ,  Stephany Lai

IPC: A61B17/3207

CPC classification number: A61B17/320758 ,  A61B17/320783 ,  A61B2017/00398 ,  A61B2017/00778 ,  A61B2217/005

Abstract: A target substance, such as a thrombus, is removed from a patient's body via minimally invasive technique. A catheter is maneuvered and positioned near the target substance. The catheter may have a soft, atraumatic tip constructed from a metallic backbone covered by a polymer. Target substances are drawn into the catheter via an aspiration source. Near the catheter's distal end, a blade and opposing surface are housed within the catheter, and the blade moves relative to the opposing surface within the catheter lumen in order to fragment the target substance. The substances are fragmented within the catheter into discreet and relatively uniform particles. The aspiration source, which helps ensnare target substances, also serves to evacuate the substance fragments from the patient's body.

公开(公告)号：US20200170666A1

公开(公告)日：2020-06-04

申请号：US16783872

申请日：2020-02-06

Applicant: Penumbra, Inc.

Inventor： Nicole Trosper ,  Holly Sit ,  Kathleen Lockhart ,  Stephany Lai

IPC: A61B17/3207

Abstract: A target substance, such as a thrombus, is removed from a patient's body via minimally invasive technique. A catheter is maneuvered and positioned near the target substance. The catheter may have a soft, atraumatic tip constructed from a metallic backbone covered by a polymer. Target substances are drawn into the catheter via an aspiration source. Near the catheter's distal end, a blade and opposing surface are housed within the catheter, and the blade moves relative to the opposing surface within the catheter lumen in order to fragment the target substance. The substances are fragmented within the catheter into discreet and relatively uniform particles. The aspiration source, which helps ensnare target substances, also serves to evacuate the substance fragments from the patient's body.

公开(公告)号：US20200376249A1

公开(公告)日：2020-12-03

申请号：US16424969

申请日：2019-05-29

Applicant: Penumbra, Inc.

Inventor： Kathleen Lockhart

IPC: A61M39/00 ,  A61M25/00

Abstract: The present invention relates to a flushing catheter device, flushing catheter components, and methods for making the same. A flushing catheter includes one or more flush segments comprised of one or more flush ports along a length of catheter body. A preferred method for making a flushing catheter incorporates a retrofit including one or more flush segments. Flushing catheters may be nested within each other's lumens to form a multi-catheter system. Flush segments may enable radial fluid communication between the many lumens and annular lumens of a multi-catheter system, e.g. intraluminal fluid communication. A multi-catheter system including flushing catheters may be entirely purged of air with a single step of fluid injection. A flushing catheter may include a tapered distal end to further enhance the ease of procedure with a multi-catheter system.