Catheter system for introducing an expandable heart valve stent into the body of a patient, insertion system with a catheter system and medical device for treatment of a heart valve defect
A technology of heart valves and catheters, applied in the field of catheter systems, can solve problems such as increasing the risk of mortality
Inactive Publication Date: 2014-11-19
JENAVALVE TECH INC
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Problems solved by technology
In such cases, it is no longer possible to remove (move out) or reposition the heart valve stent with the heart valve prosthesis even if only the corresponding distal support arches or positioning arches of the stent are in their expanded state, and There is an increased risk of mortality for specific patients
Method used
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Embodiment Construction
[0200] Figure 11 An example of how trans-arterial or trans-femoral access to a patient's heart may be obtained is exemplarily shown. in accordance with Figure 11 In the illustration in , the heart valve stent 150 is advanced to the aortic valve via the femoral artery with the help of the insertion system 100-2. Embodiments of the insertion system 100-2 adapted for transarterial or transfemoral access are described below.
[0201] According to a preferred embodiment, the insertion system 100-2 has a catheter system 1 and a handle 70-2 connected to the proximal section of the catheter system 1 . As depicted, for example, in figure 1 Among them, the catheter system 1 of the preferred embodiment comprises a catheter tip 10-2 having a seat for receiving a stent inserted in its collapsed state, and a stent retainer for releasably securing the stent. Device 15. The catheter system 1 also includes a catheter shaft 30-2 for connecting the catheter tip 10-2 to the handle 70-2 of ...
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The invention relates to catheter system for introducing an expandable heart valve stent (150) into the body of a patient, the catheter system comprising : a catheter tip (10) having a seat portion for accommodating the stent (150) in its collapsed state and a stent holder (15) for releasably fixing the stent (150), wherein the seat portion is constituted by a first sleeve-shaped member (11) and a second sleeve-shaped member (21), said sleeve-shaped members (11, 21) being moveable relative to each other and relative to the stent holder (15), and a catheter shaft (30) for connecting the catheter tip (10) to a handle (70). The catheter shaft (30) comprising : first force transmitting means (31) connected to the first sleeve-shaped member (11), second force transmitting means (41) connected to the second sleeve-shaped member (21) and a distal end section connectable to second operating means (81) of the handle (70), and guiding means (51) having a passageway extending there between, wherein the first and second force transmitting means (31, 41) are at least partly received within the passageway such as to be moveable relative to the guiding means (51), and wherein the proximal end of the guiding means (51) terminates distal to the catheter tip (10).
Description
technical field [0001] The present disclosure relates to a catheter system for introducing an expandable heart valve stent into a patient. The present disclosure also relates to an insertion system comprising a catheter system and a handle for inserting an expandable heart valve stent into a patient, and a method for treating a heart valve defect, particularly heart valve failure or heart valve stenosis, in a patient The medical device of , wherein the medical device has an insertion system and an expandable heart valve stent received in a catheter tip of the insertion system. Background technique [0002] In medical technology there has long been an effort to end heart valve defects such as aortic insufficiency or aortic stenosis nonsurgically by means of transarterial access through a catheter, thus technically without surgery. Various insertion and stent systems have been proposed with different advantages and disadvantages, some of which can be introduced transarteriall...
Claims
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IPC IPC(8): A61F2/24
CPCA61F2/2418A61F2/2436A61F2002/9517A61F2/9517
Inventor H.施特劳宾格M.利岑布格尔T.特尔纳
Owner JENAVALVE TECH INC