摘要:
Methods and devices that displace bone or other hard tissue to create a cavity in the tissue. Where such methods and devices rely on a driving mechanism for providing moving of the device to form a profile that improves displacement of the tissue. These methods and devices also allow for creating a path or cavity in bone for insertion of bone cement or other filler to treat a fracture or other condition in the bone. The features relating to the methods and devices described herein can be applied in any region of bone or hard tissue where the tissue or bone is displaced to define a bore or cavity instead of being extracted from the body such as during a drilling or ablation procedure.
摘要:
The present invention is related to a technique for simultaneously forming a plurality of paste filled tunnels. The plurality of paste filled tunnels are connected to a surgical tube directly or indirectly and emptied one after another, until a desired amount of the paste is injected into a bone cavity, organ or a tissue via the surgical tube. The paste may be a bone cement paste, a drug powder paste, viscous fluid or gel. The injected bone cement paste will set in the bone cavity to act as a medical implant. The tunnels (12) are parallel in a longitudinal body (11) and in order to fill them are placed in communication with an exit end of a filler reservoir (20) having a cross-sectional area less than about five times the total cross-sectional area of the tunnels.
摘要:
A method of positioning an arcuate catheter against an inner annular wall of the disc, and particularly on the posterior and postero-lateral portions of the inner annulus of the disc, by anthroscopy is presented. The arcuate catheter retains its predetermined arcuate shape when no pressure or force is applied to the catheter. This present device and method require no forward tip pressure on the inner annular wall of a mammalian intervertebral disc. An arcuate sheath having a cutter is used to remove tissue from the inner annulus of the disc. In another embodiment an arcuate sheath is used to progressively remove material from the interior of the mammalian intervertebral disc. In yet another embodiment, an arcuate sheath and catheter are used to remove the entire intervertebral disc and place supports to main a disc space.
摘要:
A bone cement comprises a first component and a second component. Contacting the first component and the second component produces a mixture which attains a high viscosity within a short initial period following initial contact of the first and second components. The viscosity remains relatively stable for a working time after the initial period.
摘要:
A bone cement comprises a first component and a second component. Contacting the first component and the second component produces a mixture which attains a high viscosity within a short initial period following initial contact of the first and second components. The viscosity remains relatively stable for a working time after the initial period.
摘要:
This invention provides devices and methods for mixing and extruding compositions which are medically and non-medically useful. The devices are particularly useful for mixing substances which are relatively inert when alone but become reactive when mixed. A common feature of all of the devices is that they allow the user to mix and ultimately extrude a composition from a single device which includes a single container or multiple interconnected containers.
摘要:
This is a new device for attaching to manual dosing devices for use in vertebroplasty, comprising a body (1) fitted with a coupling or connector (2) for connecting it to a manual dosing device, and two or more delivery tubes (3), each with an applicator needle, wherein said body (1) comprises a connection chamber (1.1) placing said connector (2) and said tubes (3) in communication via said body (1), and wherein a diverter or conveyor element (4), with passages (4.1), contained inside said chamber (1.1) in said body (1), and controllable from the outside of said body (1), places said connector (2) in communication with one or more of the delivery tubes (3), depending on the position in which said element is placed. The passages (4.1) through the diverter or conveyor element (4) are all in communication with one another.
摘要:
A system for treating bone having an interior volume comprising cancellous bone comprising at least one tool comprising a catheter tube (50) having a distal end, a bone cutting element (170), carried on the distal end of the catheter tube, sized and configured to establish a percutaneous access path into the bone, and a void forming structure (56) integrally carried on the catheter tube proximally of the bone cutting element and being sized and configured to be introduced through the percutaneous access path and form at least one void in cancellous bone of a desired shape and volume.
摘要:
This is a new device for attaching to manual dosing devices for use in vertebroplasty, comprising a body (1) fitted with a coupling or connector (2) for connecting it to a manual dosing device, and two or more delivery tubes (3), each with an applicator needle, wherein said body (1) comprises a connection chamber (1.1) placing said connector (2) and said tubes (3) in communication via said body (1), and wherein a diverter or conveyor element (4), with passages (4.1), contained inside said chamber (1.1) in said body (1), and controllable from the outside of said body (1), places said connector (2) in communication with one or more of the delivery tubes (3), depending on the position in which said element is placed. The passages (4.1) through the diverter or conveyor element (4) are all in communication with one another.