-
公开(公告)号：US11914005B2
公开(公告)日：2024-02-27
申请号：US18201361
申请日：2023-05-24
Applicant: PENUMBRA, INC.
Inventor： Cameron J. Mahon , Oded Y. Zur , Alejandro S. Diaz
IPC: G01R33/00
CPC classification number: G01R33/0017 , G01R33/0088
Abstract: A system and method that can automatically select a frequency of a magnetic field in a magnetic tracking system. A magnetic tracking system emits an alternating magnetic field using a set of three frequencies. In the present approach, a transmitter is capable of generating multiple sets of three frequencies. A processor selects a first set of frequencies to use and causes the receiver to measure the amplitude of the magnetic field at those frequencies. In one embodiment, the frequency set having the lowest energy is selected. The processor then compares an estimated jitter at those frequencies to the actual jitter experienced using the frequencies. If the actual jitter exceeds the estimated jitter by a predetermined amount, the processor switches to a different set of frequencies and causes the receiver to measure the magnetic field at the new set of frequencies. The process may repeat using the additional sets of frequencies.
-
公开(公告)号：US20230296697A1
公开(公告)日：2023-09-21
申请号：US18201361
申请日：2023-05-24
Applicant: PENUMBRA, INC.
Inventor： Cameron J. Mahon , Oded Y. Zur , Alejandro S. Diaz
IPC: G01R33/00
CPC classification number: G01R33/0017 , G01R33/0088
Abstract: A system and method that can automatically select a frequency of a magnetic field in a magnetic tracking system. A magnetic tracking system emits an alternating magnetic field using a set of three frequencies. In the present approach, a transmitter is capable of generating multiple sets of three frequencies. A processor selects a first set of frequencies to use and causes the receiver to measure the amplitude of the magnetic field at those frequencies. In one embodiment, the frequency set having the lowest energy is selected. The processor then compares an estimated jitter at those frequencies to the actual jitter experienced using the frequencies. If the actual jitter exceeds the estimated jitter by a predetermined amount, the processor switches to a different set of frequencies and causes the receiver to measure the magnetic field at the new set of frequencies. The process may repeat using the additional sets of frequencies.
-
公开(公告)号：US20230256224A1
公开(公告)日：2023-08-17
申请号：US18136410
申请日：2023-04-19
Applicant: Penumbra, Inc.
Inventor： Vinita Verma
CPC classification number: A61M39/0606 , A61F2/95 , A61F2/9517 , A61M2207/00
Abstract: A hemostasis valve for use with catheters in intravascular procedures. The hemostasis valve comprising a sealable fluid channel that bifurcates from a single distal lumen to two proximal lumens. An upper proximal lumen may include a funnel shaped opening to improve aspiration potential. Rotating locking mechanisms are attachable at the ends of the hemostasis valve to interlock coaxial devices or to form seals around coaxial devices. Injection molding may be used to manufacture a hemostasis valve and its components. A mold and core pins may impart external and internal shapes to a molten polymer. Once the polymer has cooled, the molded component is separated from any pins or molds and attached to other molded components to form an assembled hemostasis valve.
-
公开(公告)号：US11693063B2
公开(公告)日：2023-07-04
申请号：US17834184
申请日：2022-06-07
Applicant: PENUMBRA, INC.
Inventor： Cameron J. Mahon , Oded Y. Zur , Alejandro S. Diaz
IPC: G01R33/00
CPC classification number: G01R33/0017 , G01R33/0088
Abstract: A system and method that can automatically select a frequency of a magnetic field in a magnetic tracking system. A magnetic tracking system emits an alternating magnetic field using a set of three frequencies. In the present approach, a transmitter is capable of generating multiple sets of three frequencies. A processor selects a first set of frequencies to use and causes the receiver to measure the amplitude of the magnetic field at those frequencies. In one embodiment, the frequency set having the lowest energy is selected. The processor then compares an estimated jitter at those frequencies to the actual jitter experienced using the frequencies. If the actual jitter exceeds the estimated jitter by a predetermined amount, the processor switches to a different set of frequencies and causes the receiver to measure the magnetic field at the new set of frequencies. The process may repeat using the additional sets of frequencies.
-
105.发明申请公开(公告)号：US20230026412A1
公开(公告)日：2023-01-26
申请号：US17936685
申请日：2022-09-29
Applicant: Penumbra, Inc.
Inventor： Scott Teigen , Steven Loisel , Stephen Pons , Ben Tompkins
Abstract: An aspiration thrombectomy system including an aspiration catheter having a proximal portion, a distal end and a lumen extending through the catheter, a vacuum source fluidically coupled to the catheter, a vacuum valve connected between the vacuum source and the proximal portion of the catheter to control a vacuum flow in the catheter lumen, a vent valve fluidically coupled to the proximal portion of the catheter, the vent valve being configured to control a flow of a vent fluid in the catheter lumen, and a controller configured to open and close the vacuum valve and the vent valve in a predetermined cycle to change a level of vacuum at the distal end of the catheter and to control fluid flow in and out from the distal end of the catheter.
-
Patent Agency Ranking
106.发明申请公开(公告)号：US20220404907A1
公开(公告)日：2022-12-22
申请号：US17844426
申请日：2022-06-20
Applicant: Penumbra, Inc.
Inventor： Amir Rubin , Joel Breton , Ariel Z. Rubin , Scott C. Duensing , Alejandro S. Diaz , William Herrera , Christian Laursen , Andrew Yumul Huertas , Danilo Moura Silva
Abstract: Real-time two-way communication between a user immersed in a virtual reality (VR) environment and another party who is not in the VR environment. The sequence of video frames being presented to the VR user on, e.g., a head mounted display, i.e., the VR user's “field of view” in the VR environment, is shown to a guest user on their computing device. Simultaneously, video from a camera in a guest user computing device is shown to the VR user in a window in the VR environment. Audio is also exchanged in real time between the VR user and guest user by use of a microphone and loudspeaker in both the VR system and the guest user computing device. The VR user's system can also support both rotational and translational user movement thus properly changing the VR user's apparent distance from objects displayed in the VR environment.
-
公开(公告)号：US11523830B2
公开(公告)日：2022-12-13
申请号：US16532742
申请日：2019-08-06
Applicant: Penumbra, Inc.
Inventor： Ben Tompkins , Arani Bose , Delilah Hui , David Barry , Stephen Pons , Aleksander Leynov
Abstract: Embolic coil implant systems and methods whereby coils are mechanically detachable are disclosed. The coils include a retention element that may be releasably retained within the distal end of an implant tool. The implant tool may include a fulcrum configured to engage a first filament and prevent the release of the coil when the first filament is engaged. Alternatively, an urging means and aperture may be disposed within the sidewall of the implant tool, and a first filament may, in conjunction with the aperture and sidewall, releasably retain the coil until the first filament is withdrawn. The implant tool may also include an alignment member for aligning the first filament.
-
公开(公告)号：US11432835B2
公开(公告)日：2022-09-06
申请号：US16000762
申请日：2018-06-05
Applicant: Penumbra, Inc.
Inventor： Robyn Shaffer , Stephen Pons , Kyle West , Alex Rabkin , Sharice Quan Handa , Robert A. Riccomini , Daniel K. Harden , Michael C. Makay , Cole J. Derby
IPC: A61B17/221 , A61B17/3203 , A61B17/3207 , A61M1/00 , A61B17/22
Abstract: A system for connection to a catheter to aspirate clot from the vasculature of a patient includes a vacuum console and a canister assembly which can be removably mounted in a mounting region of the vacuum console. The canister assembly includes a clear canister with an interior and an open top. A lid is removably attachable over the open top of the clear canister, and the clear canister has a vacuum port and a pressure sensing port each formed in a wall of the canister. The vacuum port aligns with a vacuum connector on the enclosure and the pressure sensing port aligns with a pressure sensing connector on the enclosure when the canister assembly is mounted on the mounting region of the vacuum console. The clear canister has a filter plate configured to be suspended in the interior of the clear canister at a location mid-way between the open top and a bottom to separate clot from blood as they are aspirated from the catheter.
-
109.发明授权公开(公告)号：US11096712B2
公开(公告)日：2021-08-24
申请号：US16988556
申请日：2020-08-07
Applicant: Penumbra, Inc.
Inventor： Scott Teigen , Steven Loisel , Stephen Pons , Ben Tompkins
Abstract: A vacuum aspiration control system for use with a vacuum source and an aspiration catheter includes a connecting tube configured to connect the vacuum source with a lumen of an aspiration catheter. An on-off valve is operatively coupled to the connecting tube, and a sensing unit is configured to detect flow within the connecting tube and provide a signal representative of flow. A controller receives the signal to decide whether to open or close the valve. The controller may automatically close the valve to stop flow when flow through the connecting tube is unrestricted, or according to a predetermined timing sequence. The controller can further periodically open a closed valve to determine whether flow has entered an acceptable range. The controller can still further engage pulsed aspiration with a pressure manipulation assembly when flow is restricted or occluded.
-
公开(公告)号：US10993731B2
公开(公告)日：2021-05-04
申请号：US15488349
申请日：2017-04-14
Applicant: Penumbra, Inc.
Inventor： Aleksandr Leynov , David Barry , Vikas Gupta , Arani Bose
IPC: A61B17/221 , A61B17/22 , A61B17/00 , A61F2/01 , A61M25/10
Abstract: A thromboembolic removal system for treating ischemic stroke, including a guide and occlusion catheter, a delivery and aspiration catheter, an aspiration pump, a thromboembolic receiver, and a thromboembolic separator.
-
-
-
-
-
-
-
-
-
Search Results
120
records
(took 0.013 seconds)
