Abstract: Disclosed are steerable cannulas and hinged or steerable needles including access sets and methods thereof. A steerable cannula can include a compound tube, a cannula tip, a compound hub, and an articulation mechanism. A distal-end portion of the compound tube can include a flexible hinge for adjusting a cannula angle between proximal and distal portions of the compound tube adjacent the flexible hinge. A cannula tip coupled to a distal end of the compound tube can include a tip opening fluidly connected to a lumen of the compound tube. The compound hub is disposed about a proximal-end portion of the compound tube. The articulation mechanism is controlled by at least a rotatable element of the compound hub for adjusting the cannula angle. The articulation mechanism is configured to longitudinally move an inner tube of the compound tube relative to an outer tube to adjust the cannula angle.

Abstract: A sheath stabilizer can include a housing, a clamp in the housing, and an adhesive pad disposed on a base of the housing. The housing can include a sheath passageway longitudinally extending through the housing and the base oblique to the sheath passageway. The clamp can be located in a proximal-end portion of the housing around the sheath passageway. The adhesive pad can be disposed on the base and can be configured for adhering the sheath stabilizer to at least a patients skin. The sheath stabilizer can be part of a sheath-and-stabilizer assembly, which can include a sheath configured for percutaneous access. Methods for the sheath stabilizer are described.

Abstract: Disclosed is an articulated stiffening cannula (100, 200, 300, 400). The articulated stiffening cannula (100, 200, 300, 400) include a cannula tube (110, 210, 310, 410), a compound hub (130, 230, 330, 430) disposed about a proximal-end portion of the cannula tube (110, 210, 310, 410) and an articulation mechanism controlled by a rotatable element (132, 232, 332) of the compound hub (130, 230, 330, 430). The cannula tube (110, 210, 310, 410) can include a flexible hinge (114, 214, 314, 414) along a distal length of the cannula tube (110, 210, 310, 410), and can be configured to articulate at the flexible hinge (114, 214, 314, 414) for adjusting a cannula-tube angle between a distal-end portion of the cannula tube (110, 210, 310, 410) and a proximal length of the cannula tube (110, 210, 310, 410).

Abstract: A needle-tract assistants (100, 200) for establishing a needle tract of a predetermined length, including a needle thruster (110, 210) and a needle-in-catheter assembly (130, 230) removably loaded in the needle thruster (110, 210). The needle thruster (110, 210) can include a cradle (112, 212), a carriage(114, 214) within the cradle (112, 212), and a plunger (116, 216) coupled to the carriages (114, 214). The carriages (114, 214) can be configured to move between a proximal-end portion and a distal-end portion of the cradle(112, 212). The plungers (116, 216) can be configured to move the carriages (114, 214) within the cradle(112, 212). The plungers (116, 216) can also be configured to allow a user to set the predetermined length of the needle tract before establishing the needle tract.

Abstract: An intraluminal prosthesis (100) and methods thereof for treating at least portal hypertension. The intraluminal prosthesis (100) includes a mixed frame of a main frame (110) and a terminal frame (120), as well as a tubular graft (130) over at least the main frame (110). The main frame (110) includes a plurality of annular members (112). Each annular member (112) includes a plurality of diamond-shaped cells (114). The terminal frame (120) includes woven struts (122). The terminal frame (120) includes a coupled end (124) coupled to at least one of a first-end annular member (112a) or a second-end annular member (112b) respectively at a first end (110a) or a second end (110b) of the main frame (110). The tubular graft (130) extends from the first-end annular member (112a) to the second-end annular member (112b). The intraluminal prosthesis (100) includes an insertion state for inserting the intraluminal prosthesis (100) and an expanded state for use of the intraluminal prosthesis (100) is in use.

Abstract: An implant delivery device (100) includes a casing (110); and inner and outer tube driving members (150, 160), an inner tube (120), an intermediate tube (130), an outer tube (140) and an air-evacuation locking assembly (170), each at least partially accommodated in the casing (110). The three tubes are sequentially nested in one another, and first, second and third spaces are formed between neighbouring tubes. The inner tube driving member (150) has a proximal end that is sealingly fixed to a proximal end of the inner tube (120), and the outer tube driving member (160) is sealingly fixed to a proximal end of the outer tube (140). The intermediate tube (130) has a proximal end that is sealingly fixed to the inner tube driving member (150), and the intermediate tube extends through and is sealingly connected to the outer tube driving member (160). The air-evacuation locking assembly (170) is detachably coupled to the inner tube driving member (150).

Abstract: A drive handle and system for delivering an implant are disclosed. The drive handle includes a manual control unit, an electrical control unit and a transmission mechanism. The manual control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive a delivery catheter for delivering the implant. The electrical control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive the delivery catheter. The drive handle is switchable between a manual drive/control mode and an electrical drive/control mode to drive the delivery catheter to deliver the implant. The operation is simple, and the operating physician can take full advantage of the two modes to perform the surgical procedure based on his/her own operational preferences. This can result in higher surgical accuracy. Further, by providing these two modes, the apparatus has an increased the security and a reduced surgical risk.

Abstract: An implant delivery device (100) includes a casing (110); and inner and outer tube driving members (150, 160), an inner tube (120), an intermediate tube (130), an outer tube (140) and an air-evacuation locking assembly (170), each at least partially accommodated in the casing (110). The three tubes are sequentially nested in one another, and first, second and third spaces are formed between neighbouring tubes. The inner tube driving member (150) has a proximal end that is sealingly fixed to a proximal end of the inner tube (120), and the outer tube driving member (160) is sealingly fixed to a proximal end of the outer tube (140). The intermediate tube (130) has a proximal end that is sealingly fixed to the inner tube driving member (150), and the intermediate tube extends through and is sealingly connected to the outer tube driving member (160). The air-evacuation locking assembly (170) is detachably coupled to the inner tube driving member (150).

Abstract: An implant capsule (10) and an implant delivery system are disclosed. The implant capsule (10) includes, sequentially from a proximal end to a distal end, a flexural section (102, 102a-102e), a reinforcement section (101, 101a-101e) and a radiopaque reinforcement ring (104a-104e). The reinforcement section (101, 101a-101e) has higher strength than the flexural section (102, 102a-102e). The implant delivery system includes the implant capsule (10). The implant capsule (10) can ensure the implant to be deployed in a coaxial condition and prevent over-expansion due to large expansion forces exerted by a stent of the implant.

Abstract: A device and method for loading an implant into a delivery system are disclose which are capable of simplifying operations required in interventional surgery using the implant. The device includes a guide cap (1), a guider (2) and a guiding tube (3). The guide cap (1) has a conical section (101) and a straight or conical tube (103) in communication with a small open end (102) of the conical section, and the conical section has a large open end (104) that flares outward, thereby forming a flange (105) facing the tube (103). The guider (2) has tapered sections (9, 10) that are tapered along an axis of the guider and thus form large and small open ends (8, 11). The small open end (11) has a diameter greater than a diameter of the small open end (102) of the conical section of the guide cap (1).

Abstract: An electric handle for delivering an implant is disclosed. The electric handle (1) includes an electric control unit (10), a power-driven transmission mechanism (20), a handle housing (30), an outer tube anchor (40) and an inner tube anchor (50), wherein: the electric control unit (10) is operatively coupled to the power-driven transmission mechanism (20) to actuate the power-driven transmission mechanism (20); the power-driven transmission mechanism (20) is supported within the handle housing (30) and moveable together with the outer tube anchor (40); the inner tube anchor (50) is disposed within the handle housing (30) and is configured to hold an inner tube (3) of a delivery system; and the outer tube anchor (40) is configured to hold an outer tube (2) of the delivery system and is fixed to an end of the outer tube (2). A delivery system used especially for delivery of prosthetic valves is also disclosed, including an outer tube (2), an inner tube (3), an expandable implant (4) and the electric handle (1).

Abstract: A drive handle and system for delivering an implant are disclosed. The drive handle includes a manual control unit, an electrical control unit and a transmission mechanism. The manual control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive a delivery catheter for delivering the implant. The electrical control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive the delivery catheter. The drive handle is switchable between a manual drive/control mode and an electrical drive/control mode to drive the delivery catheter to deliver the implant. The operation is simple, and the operating physician can take full advantage of the two modes to perform the surgical procedure based on his/her own operational preferences. This can result in higher surgical accuracy. Further, by providing these two modes, the apparatus has an increased the security and a reduced surgical risk.

Abstract: An implant capsule (10) and an implant delivery system are disclosed. The implant capsule (10) includes, sequentially from a proximal end to a distal end, a flexural section (102, 102a-102e), a reinforcement section (101, 101a-101e) and a radiopaque reinforcement ring (104a-104e). The reinforcement section (101, 101a-101e) has higher strength than the flexural section (102, 102a-102e). The implant delivery system includes the implant capsule (10). The implant capsule (10) can ensure the implant to be deployed in a coaxial condition and prevent over-expansion due to large expansion forces exerted by a stent of the implant.

Abstract: A device and method for loading an implant into a delivery system are disclose which are capable of simplifying operations required in interventional surgery using the implant. The device includes a guide cap (1), a guider (2) and a guiding tube (3). The guide cap (1) has a conical section (101) and a straight or conical tube (103) in communication with a small open end (102) of the conical section, and the conical section has a large open end (104) that flares outward, thereby forming a flange (105) facing the tube (103). The guider (2) has tapered sections (9, 10) that are tapered along an axis of the guider and thus form large and small open ends (8, 11). The small open end (11) has a diameter greater than a diameter of the small open end (102) of the conical section of the guide cap (1).

Abstract: An electric handle for delivering an implant is disclosed. The electric handle (1) includes an electric control unit (10), a power-driven transmission mechanism (20), a handle housing (30), an outer tube anchor (40) and an inner tube anchor (50), wherein: the electric control unit (10) is operatively coupled to the power-driven transmission mechanism (20) to actuate the power-driven transmission mechanism (20); the power-driven transmission mechanism (20) is supported within the handle housing (30) and moveable together with the outer tube anchor (40); the inner tube anchor (50) is disposed within the handle housing (30) and is configured to hold an inner tube (3) of a delivery system; and the outer tube anchor (40) is configured to hold an outer tube (2) of the delivery system and is fixed to an end of the outer tube (2). A delivery system used especially for delivery of prosthetic valves is also disclosed, including an outer tube (2), an inner tube (3), an expandable implant (4) and the electric handle (1).