Medical Device And Method For Facilitating Selection Of An Annuloplasty Implant
A medical device and method for facilitating selection of a shape and/or size of an annuloplasty implant for a patient comprises a catheter with a proximal end and a distal end, and an extension member at least partly arranged inside the catheter with an operator end and a measurement end. The measurement end is extendable relative from the distal end of the catheter for apposition with at least one commissure of a cardiac valve. The measurement end of the extension member comprises means for guiding the annuloplasty implant at at least one commissure.
1 . A medical device for facilitating selection of a shape and/or size of an annuloplasty implant for a patient, said medical device comprising:
a catheter with a proximal end and a distal end and
an extension member at least partly arranged inside the catheter with an operator end and a measurement end,
wherein the measurement end of the extension member is extendable relative from the distal end of the catheter for apposition with at least one commissure of a cardiac valve, such as a mitral valve of the patient,
wherein a measure related to the selection of the annuloplasty implant's shape and/or size is based on at least an extended length of the measurement end of the extension member from the distal end of the catheter, positioned at the cardiac valve, to the at least one commissure, and
wherein the measurement end of the extension member comprises means for guiding the annuloplasty implant at at least one commissure.
2 . The medical device according to claim 1 , wherein the means for guiding is loop-shaped or c-shaped.
3 . The medical device according to claim 1 , wherein the measure related to the annuloplasty implant's shape and/or size is indicated at the operator end of the extension member.
4 . The medical device according to claim 1 , wherein the measurement end of the extension member comprises two sections separable towards each of the mitral valve's commissures.
5 . The medical device according to claim 4 , wherein the two separable sections are upon extension from the catheter aligned in a plane extending along a direction of the proximal end of the catheter.
6 . The medical device according to claim 4 , wherein the two separable sections separate with an opposite inclined separation angle.
7 . The medical device according to claim 4 , wherein the two separable sections are an integral continuation of the extension member.
8 . The medical device according to claim 4 , wherein the two separable sections are joined to the measurement end of the extension member.
9 . The medical device according to claim 1 , further comprising a force detection unit connected to the extension member for detection of a manoeuvre force applied to the extension member.
10 . The medical device according to claim 1 , wherein the extension member is rotationally arranged in the catheter for apposition with the at least one commissure.
11 . The medical device according to claim 1 , wherein the measurement end of the extension member comprises anchoring means for attaching anchors at at least one commissure for the annuloplasty implant.
12 . The medical device according to claim 11 , wherein the anchors comprise at least one guiding unit or ring.
13 . The medical device according to claim 1 , further comprising a leaflet limiter arranged at the extension member.
14 . The medical device according to claim 13 , wherein the leaflet limiter is self-expandable from a delivery mode to an expanded mode.
15 . The medical device according to claim 1 , wherein the extension member is formed as a continuous single or one-piece loop.
16 . The medical device according to claim 15 , wherein the extension member comprises a continuous loop having a distal portion being curved outwardly in a direction from the distal end of the catheter.