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：US20180228502A1

公开(公告)日：2018-08-16

申请号：US15892732

申请日：2018-02-09

Applicant: Penumbra, Inc.

Inventor： Robyn Shaffer ,  Holly Sit

IPC: A61B17/22

CPC classification number: A61B17/22 ,  A61B2017/00309 ,  A61B2017/22038 ,  A61B2017/22039 ,  A61B2017/22079 ,  A61B2217/005 ,  A61M25/0053 ,  A61M25/0108 ,  A61M25/0138 ,  A61M2025/0008 ,  A61M2025/0183

Abstract: A catheter includes a shaft having a proximal end, a distal end, and a central lumen extending continuously from the proximal end to the distal end. A hypotube forms a proximal region of the shaft, and a polymer tube forms a distal region of the shaft. A periphery of the hypotube is cut in a pattern which provides a decreasing stiffness in a proximal-to-distal direction, and in some embodiments the polymer tube is reinforced by a wire embedded over at least a portion of the polymer tube's length. A guidewire lumen is disposed at or near the distal end of the catheter and extends for a portion of the catheter's length. The catheter may be used for aspiration, device delivery, or other purposes in a patient's vasculature.