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公开(公告)号：US20240325738A1
公开(公告)日：2024-10-03
申请号：US18740687
申请日：2024-06-12
申请人： Pacesetter, Inc.
发明人： Gene A. Bornzin , Devan Hughes , Keith Victorine , Zoltan Somogyi , Matthew Nojoomi , Ekaterina Tkatchouk , Xiaoyi Min
CPC分类号： A61N1/059 , A61B5/29 , A61N1/3956 , A61B5/686 , A61N1/0573 , A61N1/37
摘要： Disclosed herein is a screw-in lead implantable in the pericardium of a patient heart and a system for delivering such leads to an implantation location. The leads include a helical tip electrode and a curvate body including a defibrillator coil with improved contact between the defibrillator coil and the patient heart. The delivery system includes a delivery catheter and lead receiving sheath disposed within the catheter. A fixation tine is disposed on one of the delivery catheter and the lead receiving sheath such that the delivery system may be anchored into the pericardium during fixation of the screw-in lead. In certain implementations, an implantable sleeve receives the leads to bias the defibrillator coil against the patient heart.
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公开(公告)号：US20240325730A1
公开(公告)日：2024-10-03
申请号：US18742796
申请日：2024-06-13
申请人： Medtronic, Inc.
发明人： Vladimir Grubac , Matthew D. Bonner , Raymond W. Usher , Thomas A. Anderson , Arshad A. Alfoqaha
CPC分类号： A61N1/05 , A61N1/0573 , A61N1/37518 , A61N1/3756
摘要： Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.
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公开(公告)号：US12102821B2
公开(公告)日：2024-10-01
申请号：US16148357
申请日：2018-10-01
发明人： Ellis Garai , Aravind Swaminathan
IPC分类号： A61N1/05
CPC分类号： A61N1/057 , A61N1/0558 , A61N1/0573
摘要： A device for positioning an electrode in tissue includes: a lead body having a distal portion; an electrode array coupled to the lead distal portion; an anchoring element having an anchor tip and being operable in a first configuration in which the anchor tip is retracted within the lead and in a second configuration in which the anchor tip is extended outside the lead and configured to fixate within the tissue; and a displacement mechanism that is actuated to bias the electrode array or the anchoring element toward the tissue. A method for positioning an electrode in tissue includes: navigating, to the tissue, a lead with an electrode array, an anchoring element with a distal anchor tip, and a displacement mechanism; biasing the electrode array and anchoring element towards the tissue with the displacement mechanism; and deploying the anchoring element, and verifying fixation of the anchor tip within the tissue.
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公开(公告)号：US20240316347A1
公开(公告)日：2024-09-26
申请号：US18610143
申请日：2024-03-19
申请人： Pacesetter, Inc.
发明人： Gene A. Bornzin , Zoltan Somogyi
CPC分类号： A61N1/362 , A61N1/0573 , A61N1/37512 , A61N1/3756
摘要： A biostimulator and a biostimulator transport system for deep septal pacing. The biostimulator includes a housing having a longitudinal axis and containing pacing circuitry in an electronics compartment. A fixation element and a pacing element are connected to the housing. The pacing element is longitudinally movable relative to the fixation element. Other embodiments are also described and claimed.
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公开(公告)号：US12023488B2
公开(公告)日：2024-07-02
申请号：US17404252
申请日：2021-08-17
申请人： EBR Systems, Inc.
CPC分类号： A61N1/0573 , A61N1/3706 , A61N1/371 , A61N1/37205 , A61N1/3787 , A61N2001/058 , A61N2001/0582 , H02J50/15
摘要： The present technology is generally directed to medical implants, such as stimulation assemblies for stimulating heart tissue. In some embodiments, a stimulation assembly includes a body, circuitry positioned at least partially within the body, an electrode coupled to the body, and a hook mechanism coupled to the body. The stimulation assembly can be implanted at cardiac tissue of a patient such that the electrode electrically contacts the tissue. The circuitry can be configured to receive acoustic energy and convert the acoustic energy to electrical energy, and the electrode can deliver the electrical energy to the tissue to stimulate the tissue. The hook mechanism can be configured to engage the tissue to pull the tissue and the electrode toward and into engagement with one another.
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公开(公告)号：US20240207624A1
公开(公告)日：2024-06-27
申请号：US18557809
申请日：2022-09-28
发明人： Wei HUA , Min GU , Hongxia NIU
CPC分类号： A61N1/3756 , A61N1/0565 , A61N1/0573 , A61N1/37512 , A61N1/37518
摘要： The present disclosure belongs to the technical field of artificial cardiac pacemakers, and particularly relates to a leadless left-bundle-branch pacemaker. The leadless left-bundle-branch pacemaker comprises a case and an implant core, wherein the implant core is coaxially arranged inside the case, and a head of the implant core can be rotated out from the inside of the case; the implant core has an implant end that can be rotated out from the inside of the case, and the length of the implant end rotated out from the inside of the case is greater than 10 mm; and an end of the case corresponding to the implant end is provided with a fixing end for fixing the pacemaker.
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公开(公告)号：US12017083B2
公开(公告)日：2024-06-25
申请号：US17070361
申请日：2020-10-14
申请人： Medtronic, Inc.
CPC分类号： A61N1/39622 , A61N1/0573 , A61N1/362
摘要： An implantable lead system may include an adjustable lead assembly. The lead assembly may include a fixation member and an implantable lead slidably coupled to and rotatable relative to the fixation member. The implantable lead system may include a telescoping delivery system. The delivery system may include an outer catheter and an inner catheter slidably coupled to and rotatable relative to the outer catheter. The lead assembly may be implanted in a cardiac septal wall through the delivery assembly.
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公开(公告)号：US20240181249A1
公开(公告)日：2024-06-06
申请号：US18440722
申请日：2024-02-13
申请人： Pacesetter, Inc.
发明人： Thomas B. Eby , Alex C. Soriano , Mark Carlson
CPC分类号： A61N1/0573 , A61N1/37512 , A61N1/3756 , A61N1/3787 , A61N2001/058
摘要： A biostimulator, such as a leadless cardiac pacemaker, including a fixation element and an electrode mounted on a resilient scaffold, is described. The fixation element and the resilient scaffold are coupled to a housing of the biostimulator. The resilient scaffold can support the electrode against a target tissue at a location that is radially offset from a location where the fixation element anchors the housing to the target tissue. A flexibility of the resilient scaffold allows the electrode to conform to a shape and movement of the target tissue when the housing is rigidly fixed to the target tissue by the fixation element. The resiliently supported electrode that is radially offset from the anchor point can reliably pace the target tissue without piercing the target tissue. Other embodiments are also described and claimed.
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公开(公告)号：US11992675B2
公开(公告)日：2024-05-28
申请号：US17109865
申请日：2020-12-02
申请人： Medtronic, Inc.
CPC分类号： A61N1/0573 , A61N1/37518 , A61N1/3754
摘要： An implantable medical device (IMD) including an elongated housing and a tine housing configured to attach to the elongated housing. The tine housing may support an extending plurality of tines and a distal-most electrode. An inner chamber is bounded at least in part by the elongated housing and the tine housing with an adhesive fill port in fluid communication with the inner chamber. A method of assembling the IMD includes forming the inner chamber and substantially filling the inner chamber with an adhesive through the adhesive fill port. The method may include curing the filling adhesive.
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公开(公告)号：US11986651B1
公开(公告)日：2024-05-21
申请号：US18201140
申请日：2023-05-23
IPC分类号： A61N1/05
CPC分类号： A61N1/0573 , A61N2001/0578
摘要： A medical lead includes a lead body, a connector pin proximate to a proximal end of the lead body, a helix extending from a distal end of the lead body, an electrode proximate to the distal end of the lead body, and a cable conductor within the lead body and including an electrode proximate a distal end of the cable conductor, the cable conductor being slideable within the lead body to extend and retract the electrode relative to the distal end of the lead body.
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