10 results about "Joint spacer" patented technology

The application relates to the technical field of medical devices, in particular to a hip joint spacer. The hip joint spacer comprises a spacer head, a femoral stem connected with the spacer head, Kirschner wires arranged in the spacer head and the femoral stem, an inner layer of the spacer head, an outer layer wrapped outside the inner layer, a through hole arranged on the outer layer to form a reserved channel, and the outer layer is communicated with the inner layer through the reserved channel. Compared with the prior art, the hip joint spacer has the advantages that the spacer head has an inner layer and an outer layer, the inner layer and the outer layer are made of different materials, the release time of antibiotics can be prolonged, the hip joint can maintain a high concentration of antibiotics, Kirschner wires are arranged in the spacer head and the femoral stem, the hip joint spacer has better mechanical strength than the prior art, can bear the weight of a patient, and can support the walking ability of the patient.

A method of seating a surgically implantable spacer including an upper and lower saddle member. The upper and lower saddles each having a first end and a second end. First and second expansion forces are applied to the first and second ends respectively causing equal separation until the first end encounters a resistive force, wherein a rate of separation between the first ends is reduced compared to rate of separation of the second ends. Vertebral contacting surfaces of the upper and lower saddle member can be arched, textured, or include any other feature to enhance an interface between the contacting surfaces and the vertebra.

In some examples, a method for preparing one or more bones involves inserting a spacer into a space defined between a first bone and a second bone, such as a joint space between a first metatarsal and medial cuneiform. A bone preparation guide can be aligned with opposed ends of the first bone and the second bone using the spacer as an alignment reference. For example, the bone preparation guide may include an opening such that the guide can be installed across the joint space with the spacer received in the opening. A clinician may use the bone preparation guide to guide a tissue removing instrument to cut or otherwise prepare the ends of the first bone portion and second bone portion.

To provide a bone preparation guide.SOLUTION: In some examples, a method for preparing one or more bones involves inserting a spacer into a space defined between a first bone and a second bone, such as a joint space between a first metatarsal and medial cuneiform. A bone preparation guide can be aligned with opposed ends of the first bone and the second bone using the spacer as an alignment reference. For example, the bone preparation guide may include an opening such that the guide can be installed across the joint space with the spacer received in the opening. A clinician may use the bone preparation guide to guide a tissue removing instrument to cut or otherwise prepare the ends of the first bone portion and second bone portion.SELECTED DRAWING: Figure 1

The invention relates to a casting mold for producing a hip joint spacer, which comprises a head element comprising an upper shell and a lower shell, optionally a neck element, and a stem element, which comprises an upper shell and a lower shell, wherein the casting mold has a latching element, and an upper shell and a lower shell of the head element and / or of the stem element can be connected to one another by means of the latching element.

The present invention provides a device, system, and method for manufacturing a joint spacer for determining the required distance between the head region and the shaft region of a joint spacer. [Solution] A device for determining the required distance between the shaft region 3 and the head region 2 of a joint spacer 1 comprises a head and a shaft that can be positioned at different distances from each other, and the device further comprises a fixing device for fixing the distance between the head and the shaft. The device makes it possible to determine the required shape of the hip joint spacer intraoperatively by adjusting the distance from the shaft to the head relative to the patient's specific anatomical structure.

A device for determining the required distance between a head region and a shaft region of a joint spacer, to a system, to a method for producing a joint spacer, and to a use. A device for determining the required distance between a head region and a shaft region of a joint spacer includes a head and a shaft, which can be positioned at different distances from one another, wherein the device further includes a fixing apparatus for fixing a distance between the head and the shaft. The device allows the required shape of a hip joint spacer to be determined intraoperatively by adjusting the distance of the head from the shaft to the specific anatomy of the patient.

Joint spacers are disclosed. In an embodiment, the joint spacers are biostable and have a first side (3) comprising a convex portion (5) and a peripheral portion (6) surrounding the convex portion. The convex portion comprises a foam (1) and the foam has a porosity in the peripheral portion that is less than the porosity at the thickest point of the convex portion.

The present invention relates to an apparatus, a system, a method for manufacturing a joint spacer and use for determining a desired distance between a head region and a shaft region of a joint spacer. A device (10) for determining a desired distance between a head region (2) and a shaft region (3) of a joint spacer (1) comprises a head (11) and a shaft (13) which can be positioned at different distances relative to one another, where the device (10) further comprises a fixing device (15) for fixing the distance between the head (11) and the shaft (13). The device allows for intraoperatively determining the desired shape of the hip spacer by adjusting the distance of the head from the shaft for a particular anatomy of the patient.

A balloon implantation kit includes an inflatable biodegradable balloon configured to be implanted in a human body and a hydrogel composition. In some cases, the hydrogel composition is provided in a container configured to be introduced into the biodegradable balloon. For some applications, the biodegradable balloon includes a joint spacer for treatment of a joint of a human subject, such as a subacromial spacer, a glenohumeral spacer, or a spacer for another joint, such as a knee, hip, ankle, or hand (e.g., CMC1) joint. In these applications, the biodegradable balloon is configured to be inserted into a space of a joint of the human body, and is shaped to provide mechanical support to the joint until the biodegradable balloon resorbs into the human body. For other applications, the biodegradable balloon includes a soft tissue spacer.