Abstract: A delivery device, a cardiac pacing device and a fixation structure are disclosed. The fixation structure includes a casing, a driving member and an elastic member. The casing has a first internal cavity and a slot, and the driving member is partially received in the first internal cavity in such a manner that one end of the driving member protrudes out of the first internal cavity from a proximal end thereof and is detachably connected to the driving sheath. The elastic member is accommodated in the first internal cavity in such a manner that its one end is coupled to the driving member and the other end extends outwardly from the driving member and is inserted in the slot. The driving member is configured for fitted connection with the casing while being able to move in an axial direction of the casing to drive the elastic member to move in the slot, thereby causing the elastic member to protrude out of or move back into the slot.

Abstract: Disclosed in the present invention is a packaging composite material comprising polarizing films, the packaging composite material comprising: a polarizing layer, comprising two or more layers of polarizing film, wherein polarization directions of at least two layers of polarizing film have an included angle which is not 0°. The packaging composite material of the present invention has a simple structure, strong light-blocking properties, a high light-blocking rate, and a broad-spectrum light-blocking effect. Also disclosed in the present invention are the use of the packaging composite material in packaging, and the use of the packaging composite material in a label. When used as packaging or a label, the packaging composite material can extend the shelf life of products which need to be stored in the dark.

Abstract: A leadless pacemaker (100, 200, 300) and trailing (1, 3, 5) and leading (2, 4, 6) components thereof are disclosed. The trailing component (1, 3, 5) includes a first connecting member (12, 32) and a second connecting member (13), and the leading component (2, 4, 6) includes a third connecting member (23, 42, 62) and a fourth connecting member (24, 63). The first connecting member (12, 32) is configured to be detachably connected to the third connecting member (23, 42, 62) and the second connecting member (13) is configured to be detachably or non-detachably connected to the fourth connecting member (24, 63), thereby achieving interlocking between the trailing component (1, 3, 5) and the leading component (2, 4, 6). Additionally, both the first connecting member (12, 32) and the third connecting member (23, 42, 62) are non-biodegradable.

Abstract: A leadless pacemaker, a leading component, a trailing component and a delivery device are disclosed. The leading component (10) includes a leading end body (100), a first connection member (101) and a second connection member (102). The trailing component (20) includes a trailing end body (200), a third connection member (203) and a fourth connection member (204).

Abstract: A pacemaker fixation system, a leadless pacemaker system and a method of use thereof are disclosed. The leadless pacemaker system includes: a pacemaker fixation system including a leadless pacemaker and an elastic unfoldable element attached thereto, wherein in an unfolded configuration of the elastic unfoldable element, it fixes the leadless pacemaker at a target location in a blood vessel in communication with the heart; a delivery system for delivering the pacemaker fixation system to the target location; and a guide for guiding the delivery system into the blood vessel. According to the present invention, atrial pacing can be achieved by the leadless pacemaker through fixing the leadless pacemaker in the blood vessel in communication with the heart with the elastic unfoldable element.

Abstract: A leadless pacemaker and a leadless pacemaker system are disclosed. A housing of a pacemaker body of the leadless pacemaker is designed as a curved tubular structure and can be deployed at a site with a limited space in a curved configuration, which allows the curved surface structure to fit more closely myocardial or vascular tissue around the site, resulting in improved pacing or sensing performance and in applicability to a substantially enlarged scope of patients who may benefit from cardiac pacing.

Abstract: A medical apparatus and a fixation mechanism for a medical device thereof are disclosed. The fixation mechanism allows the medical device to be easily fixed at a target site in a patient's body. The medical device may be a leadless pacemaker, and with the present invention, it can provide more physiological cardiac pacing. The fixation mechanism includes a holder and a fixation member. The holder extends in parallelism with the intended object, and the fixation member is provided on an outer wall of the holder and extends around the holder. One end of the fixation member is connected to the outer wall of the holder, and the other end is spaced from the outer wall of the holder by a gap. The holder can be driven to rotate in the same direction as the extension of the fixation member, causing the fixation member to rotate in the same way.

Abstract: A cardiac pacing system and a pacemaker fixation device are disclosed. The pacemaker fixation device includes a ring-shaped stent and at least one contractible member. The ring-shaped stent is configured to load a leadless pacemaker and easily fix it at a target site in a patient's body reliably without dislodgement. A connecting element in the contractible member can be reliably connected to an external mechanism, thus facilitating retrieval and removal of the cardiac pacing system with an increased success rate. During implantation, the contractible member can be adapted by operating the external mechanism to adjust the pacing location for the leadless pacemaker, thus allowing the operator to easily determine the best pacing location that can result in enhanced pacing performance of the leadless pacemaker. Further, the leadless pacemaker may be fixed in the atrium in order to pace the atrium, thus reducing non-physiological pacing with atrioventricular desynchronization.

Abstract: A delivery device, a cardiac pacing device and a fixation structure are disclosed. The fixation structure includes a casing, a driving member and an elastic member. The casing has a first internal cavity and a slot, and the driving member is partially received in the first internal cavity in such a manner that one end of the driving member protrudes out of the first internal cavity from a proximal end thereof and is detachably connected to the driving sheath. The elastic member is accommodated in the first internal cavity in such a manner that its one end is coupled to the driving member and the other end extends outwardly from the driving member and is inserted in the slot. The driving member is configured for fitted connection with the casing while being able to move in an axial direction of the casing to drive the elastic member to move in the slot, thereby causing the elastic member to protrude out of or move back into the slot.

Abstract: An active cardiac electrical lead is disclosed, including a tip housing having a lumen, a soft tip plug and a marker band. The tip housing includes a body and an extension extending from a distal end of the body, and the body is of greater outer diameter than the extension. The soft tip plug fits over the extension and engaging the extension. The marker band is attached to an outer surface of the body or to an inner surface of the lumen.

Abstract: A pacemaker fixation system, a leadless pacemaker system and a method of use thereof are disclosed. The leadless pacemaker system includes: a pacemaker fixation system including a leadless pacemaker and an elastic unfoldable element attached thereto, wherein in an unfolded configuration of the elastic unfoldable element, it fixes the leadless pacemaker at a target location in a blood vessel in communication with the heart; a delivery system for delivering the pacemaker fixation system to the target location; and a guide for guiding the delivery system into the blood vessel. According to the present invention, atrial pacing can be achieved by the leadless pacemaker through fixing the leadless pacemaker in the blood vessel in communication with the heart with the elastic unfoldable element.

Abstract: Disclosed in the present invention is a packaging composite material comprising polarizing films, the packaging composite material comprising: a polarizing layer, comprising two or more layers of polarizing film, wherein polarization directions of at least two layers of polarizing film have an included angle which is not 0°. The packaging composite material of the present invention has a simple structure, strong light-blocking properties, a high light-blocking rate, and a broad-spectrum light-blocking effect. Also disclosed in the present invention are the use of the packaging composite material in packaging, and the use of the packaging composite material in a label. When used as packaging or a label, the packaging composite material can extend the shelf life of products which need to be stored in the dark.

Abstract: An active bipolar cardiac electrical lead includes a distal electrode (108), an intermediate connection mount (109), a ring electrode (103), and a tip housing (110). The intermediate connection mount (109) defines a proximal fitting (370) and a distal fitting (374). The ring electrode (103) has an exposed section (356) that sleeves over and engages the proximal fitting (370) of the intermediate connection mount (109) with a snap-fit connection. The intermediate connection mount (109) may connect the ring electrode (103) to the tip housing (110) and provide electrical insulation between the ring electrode (103) and the distal electrode (108).

Abstract: An active cardiac electrical lead is disclosed, including a tip housing having a lumen, a soft tip plug and a marker band. The tip housing includes a body and an extension extending from a distal end of the body, and the body is of greater outer diameter than the extension. The soft tip plug fits over the extension and engaging the extension. The marker band is attached to an outer surface of the body or to an inner surface of the lumen.

Abstract: An active bipolar cardiac electrical lead includes a distal electrode (108), an intermediate connection mount (109), a ring electrode (103), and a tip housing (110). The intermediate connection mount (109) defines a proximal fitting (370) and a distal fitting (374). The ring electrode (103) has an exposed section (356) that sleeves over and engages the proximal fitting (370) of the intermediate connection mount (109) with a snap-fit connection. The intermediate connection mount (109) may connect the ring electrode (103) to the tip housing (110) and provide electrical insulation between the ring electrode (103) and the distal electrode (108).

Abstract: An active bipolar cardiac electrical lead includes a distal electrode (108), an intermediate connection mount (109), a ring electrode (103), and a tip housing (110). The intermediate connection mount (109) defines a proximal fitting (370) and a distal fitting (374). The ring electrode (103) has an exposed section (356) that sleeves over and engages the proximal fitting (370) of the intermediate connection mount (109) with a snap-fit connection. The intermediate connection mount (109) may connect the ring electrode (103) to the tip housing (110) and provide electrical insulation between the ring electrode (103) and the distal electrode (108).

Abstract: An active bipolar cardiac electrical is assembled by coupling an inner conductor coil to a connector pin to form an inner conductor assembly. The inner conductor assembly is threaded through a connector insulator. An insulating tubing is placed over the inner coil. A proximal end of the insulating tubing is sleeved over the distal extension of the connector insulator. An outer conductor coil is coupled to a ring connector to form an outer conductor assembly. The inner conductor assembly is threaded through the outer conductor assembly. The ring connector is sleeved on the distal extension of the connector insulator and over the insulator tubing. A proximal seal is sleeved over a socket end of the connector pin. The proximal seal is seated on the proximal extension of the connector insulator.

Abstract: A passive cardiac electrical lead is assembled by coupling an inner conductor coil to a connector pin to form an inner conductor assembly. The inner conductor assembly is threaded through a connector insulator. An insulator tubing is placed over the inner coil. A proximal end of the insulator tubing is sleeved over the distal extension of the connector insulator. An outer conductor coil is coupled to a ring connector to form an outer conductor assembly. The inner conductor assembly is threaded through the outer conductor assembly. The ring connector is sleeved on the distal extension of the connector insulator and over the insulator tubing. A proximal seal is sleeved over a socket end of the connector pin. A portion of the proximal seal is seated on the proximal extension of the connector insulator.

Abstract: An active bipolar cardiac electrical lead includes a distal electrode (108), an intermediate connection mount (109), a ring electrode (103), and a tip housing (110). The intermediate connection mount (109) defines a proximal fitting (370) and a distal fitting (374). The ring electrode (103) has an exposed section (356) that sleeves over and engages the proximal fitting (370) of the intermediate connection mount (109) with a snap-fit connection. The intermediate connection mount (109) may connect the ring electrode (103) to the tip housing (110) and provide electrical insulation between the ring electrode (103) and the distal electrode (108).

Abstract: An active bipolar cardiac electrical is assembled by coupling an inner conductor coil to a connector pin to form an inner conductor assembly. The inner conductor assembly is threaded through a connector insulator. An insulating tubing is placed over the inner coil. A proximal end of the insulating tubing is sleeved over the distal extension of the connector insulator. An outer conductor coil is coupled to a ring connector to form an outer conductor assembly. The inner conductor assembly is threaded through the outer conductor assembly. The ring connector is sleeved on the distal extension of the connector insulator and over the insulator tubing. A proximal seal is sleeved over a socket end of the connector pin. The proximal seal is seated on the proximal extension of the connector insulator.