Methods and systems for simulating a stent in a coronary artery lumen structure are disclosed. A method of simulating a stent in a coronary artery lumen structure, the method comprises: reconstructing a three-dimensional coronary artery tree from segmented coronary lumen contours; replacing part of the three-dimensional artery tree with a candidate stent structure; and simulating pressure distribution through the coronary artery tree to determine a non-invasive fractional flow reserve through the candidate stent structure.

A hearing prosthesis, comprising: a microphone; a sound processor; an external transmitter unit including a coil; an internal receiver unit including a coil; a stimulator unit, wherein the stimulator unit includes a control circuit, a voltage measurement component, a resistor and a signal generator, wherein the measurement circuit is configured to output a signal indicative of the voltage across the resistor; and a stimulating lead assembly array, wherein at least a portion of the hearing prosthesis is configured to apply an electrical signal to tissue inside a cochlea of a recipient, and at least a portion of the hearing prosthesis is configured to sense an electrical property inside of the cochlea that results from the applied electrical signal and the interaction of the applied electrical signal to the tissue.

An implantable prosthesis for mending anatomical defects, including a groin hernia. The prosthesis includes a prosthetic repair patch that may be implanted in different tissue planes to mend a defect. The patch may include a medial portion configured to be positioned in a first tissue plane and a lateral portion configured to be positioned in a second tissue plane offset from the first tissue plane. The patch may include a transition region configured to extend through tissue and/or muscle, such as fascia, separating the tissue planes and transition the patch from one tissue plane to the other tissue plane. The transition region may be configured to inhibit buckling and/or bunching of the patch when implanted through the fascia. The lateral portion of the patch may have a level of stiffness that facilitates implantation of the patch in different tissue planes while inhibiting patient sensation to the implanted patch.

An aortic graft occluder for intraoperative leak testing of a tubular aortic graft attached to an aortic root. The aortic graft occluder includes a plug adapted for sealingly closing an opening of the aortic graft. The plug includes a first pathway adapted for connecting a lumen of the aortic graft with a feed line.

The present invention relates to devices and methods for measuring physiological parameters, such as flow, pressure, temperature, electric conductivity and/or visual indication of thrombus formation or deposits accumulations, prior to, during and/or after prosthetic heart valve implantation procedures.

The present invention provides a package comprising an aortoiliac artery graft and a record of a measured pressurized diameter of the aortoiliac artery graft, which measurement has been determined ex vivo under a pressure. A method of processing an aortoiliac artery graft is also provided. The processing method comprises subjecting an aortoiliac artery to a pressure ex vivo, and determining a measured pressurized diameter of the aortoiliac artery under the pressure. A method of treating abdominal aortic aneurysm, infected aortoiliac endograft or a traumatically damaged abdominal aorta or an iliac artery in a patient is further provided. The treatment method comprises anastomosing a processed aortoiliac artery graft with an aorta of the patient on the proximal end and the iliac or femoral arteries on the distal end, wherein a measured pressurized diameter of the processed aortoiliac artery graft has been determined ex vivo under a pressure.

An improved medical device reduces the loss of longitudinal length during expansion of a stent-graft from a compressed state to an expanded state. For example, the stent-graft is placed over a cover that provides resistance to expansion of the balloon during inflation, which reduces longitudinal compressing forces exerted on the stent-graft.

An implantable medical device obtained by means of two-photon laser polymerisation of a resin to form a three-dimensional matrix, wherein: said three-dimensional matrix comprises a number of levels distributed in height; and said three-dimensional matrix comprises reference means designed to uniquely identify the height of each level from a pre-set reference, by means of a multi-photon fluorescence-excitation microscope; said implantable medical device being characterised in that said reference means comprise a solid having a cross section that varies with height.

The present invention provides a package comprising an aortoiliac artery graft and a record of a measured pressurized diameter of the aortoiliac artery graft, which measurement has been determined ex vivo under a pressure. A method of processing an aortoiliac artery graft is also provided. The processing method comprises subjecting an aortoiliac artery to a pressure ex vivo, and determining a measured pressurized diameter of the aortoiliac artery under the pressure. A method of treating abdominal aortic aneurysm, infected aortoiliac endograft or a traumatically damaged abdominal aorta or an iliac artery in a patient is further provided. The treatment method comprises anastomosing a processed aortoiliac artery graft with an aorta of the patient on the proximal end and the iliac or femoral arteries on the distal end, wherein a measured pressurized diameter of the processed aortoiliac artery graft has been determined ex vivo under a pressure.

Methods of selecting and implanting prosthetic devices for use as a replacement meniscus are disclosed. The selection methods include a pre-implantation selection method and a during-implantation selection method. The pre-implantation selection method includes a direct geometrical matching process, a correlation parameters-based matching process, and a finite element-based matching process. The implant identified by the pre-implantation selection method is then confirmed to be a suitable implant in the during-implantation selection method. Methods of implanting meniscus prosthetic devices are also disclosed.