公开(公告)号：US20240325617A1

公开(公告)日：2024-10-03

申请号：US18739456

申请日：2024-06-11

申请人： University of Maryland, Baltimore

发明人： Zhongjun WU ,  Bartley P. GRIFFITH ,  Keshava RAJAGOPAL

IPC分类号： A61M1/36 ,  A61B17/00 ,  A61B17/34 ,  A61M60/148 ,  A61M60/178 ,  A61M60/38 ,  A61M60/857 ,  A61M60/861

CPC分类号： A61M1/3659 ,  A61B17/3417 ,  A61B17/3421 ,  A61B17/3439 ,  A61M60/178 ,  A61M60/38 ,  A61M60/857 ,  A61M60/861 ,  A61B2017/00247 ,  A61B2017/3419 ,  A61B2017/3425 ,  A61M60/148

摘要： The present invention discloses a self-sealing cannula and methods of its use. The self-sealing cannula can be minimally invasively placed into the heart for drawing and/or returning blood with a self-sealing function at the interface of the blood access site. The disclosed cannula can be implemented as a single lumen cannula or a double lumen cannula, which can be used with ventricular assist devices for heart support or pump-oxygenators for ECMO and respiratory support. Through a self-sealing mechanism fixed on the ventricular wall or atrial wall, a cannula body is attached to the self-sealing fixture and blood is drawn into the lumen via an external pump and returned to the circulation system through a separate cannula. In the case of the double lumen cannula embodiment, the blood will be drawn into the drainage lumen of the double lumen cannula and returned through an infusion lumen at the desired location. The present invention achieves minimally invasive insertion without surgical sutures to the heart, and allows for optimal drainage of the blood from the heart. With use of the double lumen cannula, it prevents need for multiple cannulation sites, and greatly reduces the blood recirculation. Removal of the cannula is simplified without need for suturing or insertion of a plugging member.

公开(公告)号：US20240325051A1

公开(公告)日：2024-10-03

申请号：US18615229

申请日：2024-03-25

申请人： Boston Scientific Scimed, Inc.

发明人： Spencer Fodness-Bondhus ,  Edward Louis Gonda

IPC分类号： A61B17/34 ,  A61B17/00

CPC分类号： A61B17/3496 ,  A61B17/00234 ,  A61B2017/00247 ,  A61B2017/00292 ,  A61B2017/00367 ,  A61B2017/00862

摘要： A safety lancet transseptal access system is disclosed. The system includes a housing having a proximal end and a distal end, the proximal end having an opening with a plunger and the distal end terminating in a housing wall, a housing lumen extending through the housing and a release mechanism coupled to the housing. The system further includes a puncture device spring connected to the plunger and a disk. The system further includes a puncture device connected to the disk. When the plunger is pushed towards the distal end of the housing, the puncture device spring compresses triggering the release mechanism which then causes the puncture device to be deployed past the housing wall. Additionally, once deployed, tension from the puncture device spring pulls the disk and the puncture device back into the housing to a neutral position.

公开(公告)号：US12090284B2

公开(公告)日：2024-09-17

申请号：US17545395

申请日：2021-12-08

申请人： Boston Scientific Scimed, Inc.

发明人： Lance A. Freeseman ,  James P. Rohl ,  Joel T. Eggert ,  Eric M. Petersen ,  Craig M. Wilson ,  Douglas D. Pagoria ,  Todd College

IPC分类号： A61B17/34 ,  A61M25/00 ,  A61B17/00 ,  A61M25/09

CPC分类号： A61M25/0084 ,  A61B17/3478 ,  A61B17/3496 ,  A61M25/0074 ,  A61B2017/00247 ,  A61B2017/00367 ,  A61B2017/3425 ,  A61M25/0068 ,  A61M2025/0089 ,  A61M2025/0095 ,  A61M25/09

摘要： Tissue puncture devices, and systems and methods for accessing tissue (e.g., cardiovascular tissue) according to the present disclosure may include a tubular sheath extending along a longitudinal axis, the tubular sheath having a proximal end and a distal end, a needle disposed coaxially in the sheath, the needle having a proximal end and a distal end and being movable along the longitudinal axis of sheath, and a needle control mechanism disposed at the proximal end of the needle, the needle control mechanism being configured to lock the distal end of the needle in a first position retracted within the distal end of the sheath, and release the needle to an unlocked second position such that the distal end of the needle is extendable beyond the distal end of the sheath.

公开(公告)号：US20240268860A1

公开(公告)日：2024-08-15

申请号：US18618918

申请日：2024-03-27

申请人： Deke Medtech (hangzhou) Inc.

发明人： Zhenjun Zi ,  Nan Shao ,  Jingjing Hu ,  Liwen Liu ,  Xiaotong Zeng ,  Ji Zheng

IPC分类号： A61B17/34 ,  A61B17/00 ,  A61M5/00 ,  A61M5/46 ,  A61M25/00

CPC分类号： A61B17/34 ,  A61B17/00234 ,  A61M5/00 ,  A61M5/46 ,  A61M25/0041 ,  A61M25/0084 ,  A61B2017/00243 ,  A61B2017/00247 ,  A61M2025/0089 ,  A61M2202/0007 ,  A61M2210/125

摘要： A therapeutic method for myocardial repair, includes providing a therapeutic needle, introducing the treatment needle to pierce from an epicardium into the myocardium without passing through an endocardium, and injecting therapeutant for myocardial repair through the treatment needle.

公开(公告)号：US20240225725A9

公开(公告)日：2024-07-11

申请号：US18277828

申请日：2022-02-01

申请人： KANEKA CORPORATION

发明人： Yuki MUKAI ,  Miho KOBAYASHI

IPC分类号： A61B18/14

CPC分类号： A61B18/1492 ,  A61B2017/00247

摘要： A puncturing device comprising: a resin tube having a distal end and a proximal end, and extending in a longitudinal direction; a metal tube disposed in a lumen of the resin tube; a metal member disposed at a distal end portion of the metal tube; and a metal tip disposed at a distal end portion of the metal member, wherein a flow path is present between an inner surface of the resin tube and an outer surface of the metal member and is in communication with a lumen of the metal tube, the resin tube further includes an opening portion through which the flow path and outside of the resin tube are in communication with each other, and the opening portion is present on a distal side relative to a distal end of the metal tube and on a proximal side relative to the proximal end of the metal tip.

公开(公告)号：US20240197365A1

公开(公告)日：2024-06-20

申请号：US18543567

申请日：2023-12-18

申请人： Indian Wells Medical, Inc.

发明人： Jay A. Lenker ,  Michael L. Jones ,  James A. Carroll

IPC分类号： A61B17/34 ,  A61B17/00 ,  A61B17/3205 ,  A61M25/06

CPC分类号： A61B17/3478 ,  A61B2017/00247 ,  A61B2017/00309 ,  A61B2017/00314 ,  A61B2017/00323 ,  A61B2017/00867 ,  A61B17/32053 ,  A61M25/0606 ,  A61M2025/0681

摘要： An endoluminal needle or punch is describes wherein the distal end of the endoluminal needle is able to articulate laterally out of the longitudinal axis of the steerable endoluminal needle. The endoluminal needle further comprise a blunted distal end configuration that is minimally traumatic. Under control by the user, at the proximal end of the endoluminal needle, a sharp stylet can be advanced to punch tissue and then be retracted to maximize safety. The endoluminal needle is configured for use within an introducer.

公开(公告)号：US12011151B2

公开(公告)日：2024-06-18

申请号：US17385230

申请日：2021-07-26

申请人： Muffin Incorporated ,  National Institutes of Health, an Agency of the Department of Health and Human Services

发明人： Shaun Davis Gittard ,  Gregory James Hardy ,  John C. Sigmon, Jr. ,  Jeremy T. Newkirk ,  William J. Havel ,  Neal E. Fearnot ,  Toby Rogers ,  Kanishka Ratnayaka ,  Robert L. Lederman

IPC分类号： A61B17/02 ,  A61B90/00 ,  A61M25/00 ,  A61M25/10 ,  A61B17/00 ,  A61B17/34 ,  A61M25/01 ,  A61M25/06

CPC分类号： A61B17/0218 ,  A61B90/39 ,  A61M25/0041 ,  A61M25/0045 ,  A61M25/10 ,  A61B2017/00247 ,  A61B2017/00557 ,  A61B2017/00845 ,  A61B2017/00955 ,  A61B2017/0225 ,  A61B2017/0237 ,  A61B2017/3486 ,  A61B2090/3925 ,  A61B2090/3966 ,  A61M2025/0047 ,  A61M25/0052 ,  A61M25/0054 ,  A61M25/0108 ,  A61M25/0662 ,  A61M2025/1079 ,  A61M2025/1093

摘要： Among other things, there is disclosed structure and methods for maintaining access to a location in the body while reducing or eliminating the potential for pulling an access device (e.g. a catheter) back through an opening. An introducer sheath includes a distal indented portion and a balloon, so that once placed in a desired location through tissue, the balloon can be inflated to anchor the sheath against retraction. In particular embodiments, structure and methods for accessing the pericardial cavity via the right atrial appendage are shown.

公开(公告)号：US12005177B2

公开(公告)日：2024-06-11

申请号：US16891655

申请日：2020-06-03

申请人： University of Maryland, Baltimore

发明人： Zhongjun Wu ,  Bartley P. Griffith ,  Keshava Rajagopal

IPC分类号： A61M1/36 ,  A61B17/00 ,  A61B17/34 ,  A61M60/178 ,  A61M60/38 ,  A61M60/857 ,  A61M60/861 ,  A61M60/148

CPC分类号： A61M1/3659 ,  A61B17/3417 ,  A61B17/3421 ,  A61B17/3439 ,  A61M60/178 ,  A61M60/38 ,  A61M60/857 ,  A61M60/861 ,  A61B2017/00247 ,  A61B2017/3419 ,  A61B2017/3425 ,  A61M60/148

摘要： The present invention discloses a self-sealing cannula and methods of its use. The self-sealing cannula can be minimally invasively placed into the heart for drawing and/or returning blood with a self-sealing function at the interface of the blood access site. The disclosed cannula can be implemented as a single lumen cannula or a double lumen cannula, which can be used with ventricular assist devices for heart support or pump-oxygenators for ECMO and respiratory support. Through a self-sealing mechanism fixed on the ventricular wall or atrial wall, a cannula body is attached to the self-sealing fixture and blood is drawn into the lumen via an external pump and returned to the circulation system through a separate cannula. In the case of the double lumen cannula embodiment, the blood will be drawn into the drainage lumen of the double lumen cannula and returned through an infusion lumen at the desired location. The present invention achieves minimally invasive insertion without surgical sutures to the heart, and allows for optimal drainage of the blood from the heart. With use of the double lumen cannula, it prevents need for multiple cannulation sites, and greatly reduces the blood recirculation. Removal of the cannula is simplified without need for suturing or insertion of a plugging member.

公开(公告)号：US20240180540A1

公开(公告)日：2024-06-06

申请号：US18436107

申请日：2024-02-08

申请人： TRANSSEPTAL SOLUTIONS LTD.

发明人： Elad SAPIR

IPC分类号： A61B17/00 ,  A61B5/00 ,  A61B5/02 ,  A61B5/107 ,  A61B17/12 ,  A61B17/34 ,  A61B90/00

CPC分类号： A61B17/0057 ,  A61B5/0044 ,  A61B5/02028 ,  A61B5/1076 ,  A61B5/1079 ,  A61B5/6856 ,  A61B17/3478 ,  A61B2017/00243 ,  A61B2017/00247 ,  A61B2017/00632 ,  A61B17/12122 ,  A61B2090/061 ,  A61B2090/3966 ,  A61B2576/023

摘要： A method is provided that includes inserting a catheter into an atrium of a subject, and deploying at least one loop from a wall of the catheter, such that a distal end of the loop is distal to a distal end of the catheter. The method further includes inserting the loop partially into an appendage of the atrium, and, while inserting the loop, atraumatically contacting a portion of a perimeter of an opening of the appendage with a portion of the loop. Thereafter, the loop is further inserted into the appendage. Thereafter, a size of the opening of the appendage is measured using the loop. Other applications are also described.

公开(公告)号：US11998238B2

公开(公告)日：2024-06-04

申请号：US17474415

申请日：2021-09-14

申请人： Boston Scientific Medical Device Limited

发明人： Gareth Davies ,  John Paul Urbanski ,  Ferryl Alley ,  Bogdan Beca

IPC分类号： A61B18/14 ,  A61B17/34 ,  A61B90/00 ,  A61B17/00 ,  A61B17/22 ,  A61B18/00

CPC分类号： A61B17/3478 ,  A61B18/1492 ,  A61B90/39 ,  A61B2017/00247 ,  A61B2017/003 ,  A61B2017/22042 ,  A61B2017/3488 ,  A61B2018/00351 ,  A61B2090/3966

摘要： Novel and unique medical devices and associated methods are disclosed, for a medical device for puncturing tissue at a tissue site. The medical device is an elongate member having a proximal section, a distal section, and a rail section therebetween. The medical device includes an active tip at a distal end of the distal section and is operable to deliver energy to create a puncture through the tissue. The rail section is configured to both act as a rail for supporting installation of one or more tubular members thereupon, as well as be maneuverable for enabling access to the tissue site.