CN217366199U - Valve implantation positioning assembly and intervention system - Google Patents
Valve implantation positioning assembly and intervention system Download PDFInfo
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- CN217366199U CN217366199U CN202220816948.4U CN202220816948U CN217366199U CN 217366199 U CN217366199 U CN 217366199U CN 202220816948 U CN202220816948 U CN 202220816948U CN 217366199 U CN217366199 U CN 217366199U
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Abstract
The utility model relates to the technical field of medical equipment, concretely relates to valve implantation positioning assembly and intervention system. The valve implantation positioning assembly comprises: the first fixing anchor is suitable for being connected with the valve surface of the inflow end side of the native valve leaflet in the human body on one side, and is suitable for being connected with the proximal end of the artificial valve on the other side; the second fixed anchor is arranged on the outer layer of the first fixed anchor; the second fixing anchor is suitable for being connected with the valve surface at the outflow end side of the native valve leaflet in the human body; the first fixed anchor and the second fixed anchor are arranged correspondingly. The utility model provides a positioning component is implanted to valve, through first anchor with the second anchor is mutually supported and will be native valve leaflet centre gripping or block between the two in the positioning process, does not need calcification valve leaflet and the extrusion of valve frame to provide radial support power, just can block artificial valve firmly for a long time, thereby the reinforcing positioning component location and/or the stability of anchor are implanted to valve.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to valve implantation positioning assembly and intervention system.
Background
The transcatheter valve replacement operation is an effective method for solving the heart valve diseases, has small wound, weak invasiveness, short postoperative recovery time, quick operation and good treatment effect reflection, and is particularly suitable for patients who are older and are not suitable for surgical operation. The implanted artificial valve enters the native valve position of the heart through the routes of femoral artery or carotid artery or apical small incision and the like by a delivery system, and after being adjusted to a proper position, the artificial valve is released and plays a role to replace the original diseased position. The key to the ability of the prosthetic valve to replace the native valve is to be able to be released in a desired position and to be held stably in that position to function as a replacement for the native valve.
When the existing artificial valve which is on the market or in the clinical stage is used, a doctor observes the physiological structure of a patient through CT (computed tomography) before operation or proportional printing of a 3D (three-dimensional) silica gel model, judges that the artificial valve reaches a proper position according to experience of the doctor in the operation by combining means such as ultrasonic or DSA (digital signal amplification) and the like, depends on the image technology and the experience of the doctor, and is stabilized mainly by radial supporting force generated by extrusion of calcified valve leaflets and a valve frame. It is more advanced, adopted the location structure that the artificial valve matches, this location structure suits with the organizational structure of heart, can fix a position at the sinus bottom of native leaflet, and the valve location structure is released to the intraoperative priority, and the artificial valve just along location structure safety, effectual release to implant the position, but in case location structure release back, if appear the position unsatisfactory, can not retrieve and release again, will use with specific valve cooperation moreover, application scope is narrower.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the valve implantation instrument lacks positioning accuracy among the prior art to a positioning component and intervention system are implanted to valve that location is accurate is provided.
In order to solve the above technical problem, the utility model provides a positioning assembly is implanted to valve, include:
the first fixing anchor is suitable for being connected with the valve surface of the inflow end side of the native valve leaflet in the human body on one side, and is suitable for being connected with the proximal end of the artificial valve on the other side;
the second fixed anchor is arranged on the outer layer of the first fixed anchor; the second fixing anchor is suitable for being connected with the valve surface at the outflow end side of the native valve leaflet in the human body;
the first fixed anchor and the second fixed anchor are arranged correspondingly.
Optionally, the length of the second fixation anchor in the direction of intervention is less than the length of the first fixation anchor in the direction of intervention.
Optionally, the first anchor comprises a first anchor peak;
the second fixation anchor comprises a second anchor peak;
the first anchor peaks and the second anchor peaks are connected in a one-to-one correspondence manner.
Optionally, the first fixation anchor further comprises a first anchor valley, the first anchor valley is inwardly warped in a closing direction of the native valve, and is adapted to be connected with a proximal end of a valve frame of the prosthetic valve.
Optionally, the second fixation anchor further comprises a second anchoring valley, which is outwardly warped in the opening direction of the native valve, and is adapted to be connected with a sinus-shaped root of a side leaflet of the native leaflet within the human body.
Optionally, the first fixation anchor comprises an anchor shaft and a valve anchor;
one end of the anchor rod along the intervention direction is suitable for being directly or indirectly connected with the second fixing anchor, and the other end of the anchor rod is fixedly connected with the valve anchor; the valve anchor is adapted to be coupled to a proximal end of a prosthetic valve.
Optionally, the valve implantation positioning assembly further comprises a connector, one end of the connector is suitable for being connected with the first anchor peak, the second anchor peak and/or the anchor rod, and the other end of the connector is suitable for being connected with the delivery unit.
Optionally, a coupling portion is provided on the connecting member, and the coupling portion is adapted to be selectively engaged with the conveying unit.
Optionally, the coupling portion comprises a connecting round hole and/or a connecting lug, and the connecting round hole and/or the connecting lug are/is suitable for being selectively clamped with the clamping portion of the conveying unit.
The utility model also provides an intervention system, include: a delivery unit and a control unit, and the valve implantation positioning assembly.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a valve implantation positioning component, which comprises a first fixing anchor and a second fixing anchor; one side of the first fixing anchor is suitable for being connected with the valve surface of the inflow end side of the native valve leaflet in the human body, and the other side of the first fixing anchor is suitable for being connected with the proximal end of the artificial valve; the second fixed anchor is arranged on the outer layer of the first fixed anchor; the second fixing anchor is suitable for being connected with the valve surface at the outflow end side of the native valve leaflet in the human body; the first fixed anchor and the second fixed anchor are arranged correspondingly; through setting up including first anchor and its correspond double-deck anchor structure including the second anchor makes first anchor with the second anchor is mutually supported and is held native leaflet centre gripping or the card and embrace in the positioning process first anchor with between the second anchor, improved positioning accuracy, do not need calcification leaflet and valve frame extrusion to provide radial support power, just can block the artificial valve steadily for a long time, thereby reinforcing positioning component location and/or the stability of anchor are implanted to the valve.
2. The utility model provides a positioning assembly for valve implantation, wherein the first fixing anchor also comprises a first anchor valley, the first anchor valley is warped inwards along the closing direction of the native valve and is suitable for being connected with the heart-proximal end of the valve frame of the artificial valve; the first anchor valley is arranged and is warped inwards along the closing direction of the native valve, so that the warping structure of the first anchor valley is clamped with the proximal end of the valve frame of the artificial valve, the artificial valve is prevented from migrating and sliding into a ventricle, the artificial valve is released quickly and stably in the operation process, and the risk of valve replacement operation is effectively reduced; simultaneously, the inward warpage structure that forms of first anchor millet along the closed direction of native valve is favorable to the prosthetic valve of adaptation different specification models, has strengthened the adaptation scope of positioning component is implanted to the valve.
3. The utility model provides a positioning assembly is implanted to valve, the second anchor still includes the second anchor millet, the outside warpage of second anchor millet along the open direction of native valve is suitable for being connected with the sinus root of the side valve leaf of the native valve leaf in the human body; the second anchoring valley is arranged and is warped outwards along the opening direction of the native valve, so that the warped structure of the second anchoring valley is clamped with the sinus root part of the side valve leaf of the native valve leaf, and the positioning and/or anchoring stability is enhanced; the inward buckling structures of the first anchoring valleys along the closing direction of the native valve and the outward buckling structures of the second anchoring valleys along the opening direction of the native valve are arranged in a one-to-one correspondence mode, so that the structures of the second fixing anchors are better matched with the native valve leaflets and surrounding tissue structures of the native valve leaflets, the positioning precision of the valve implantation positioning assembly is improved, and the valve implantation positioning assembly is more stable and reliable in the positioning and/or anchoring process.
4. The utility model provides a valve implantation positioning component, the first fixing anchor comprises an anchor rod and a valve anchor; one end of the anchor rod along the intervention direction is suitable for being directly or indirectly connected with the second fixing anchor, and the other end of the anchor rod is fixedly connected with the valve anchor; the valve anchor is adapted to connect with a proximal end of a prosthetic valve; the first fixing anchor of the anchor rod type structure comprising the anchor rod and the valve anchor is arranged to be matched with the second fixing anchor, so that the positioning and/or anchoring of the valve implantation positioning assembly at a native valve is realized, and on the basis of the first fixing anchor of the peak-valley type structure, the structural form of the valve implantation positioning assembly is expanded, so that the valve implantation positioning assembly can be matched with an existing artificial valve and/or an existing input system, and the adaptation range of the valve implantation positioning assembly is expanded.
5. The utility model provides a valve implantation positioning component, which also comprises a connecting piece, wherein one end of the connecting piece is suitable for being connected with the first anchor peak, the second anchor peak and/or the anchor rod, and the other end of the connecting piece is suitable for being connected with the conveying unit; the connecting piece is provided with a coupling part, and the coupling part comprises a connecting round hole and/or a connecting hanging lug; the valve implantation positioning assembly can be selectively clamped by the connecting round hole and any structural form of the connecting hanging lug and the clamping part of the conveying unit, so that the adaptation range of the valve implantation positioning assembly is expanded, and the applicability of the valve implantation positioning assembly is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the valve implantation positioning assembly with the first anchors of the peak-valley type of the present invention;
fig. 2 is a schematic view of the whole structure of the valve implantation positioning assembly with the anchor rod type first fixing anchor of the present invention;
FIG. 3 is a schematic view of the whole structure of the valve implantation positioning assembly with the coupling part being a connecting circular hole;
fig. 4 is a schematic view of the whole structure of the valve implantation positioning assembly of the present invention with the coupling part being the connection hangers;
FIG. 5 is a schematic view of the valve implantation positioning assembly of the present invention cooperating with a prosthetic valve;
fig. 6 is a schematic diagram of the overall structure of the interventional system of the invention;
FIG. 7 is a schematic view of the valve implant positioning assembly of the present invention in a released position at a native valve site of a human heart;
FIG. 8 is a schematic view of the valve implantation positioning assembly of the present invention in a released position in conjunction with a prosthetic valve at a native valve site;
FIG. 9 is a schematic view of a native valve;
fig. 10 is a schematic view of the positioning of the valve implantation positioning assembly of the present invention at the native aortic valve.
Description of reference numerals:
1. a first anchor; 111. a first anchor peak; 112. a first anchor valley; 121. an anchor rod; 122. a valve anchor;
2. a second anchor; 21. a second anchor peak; 22. a second anchor valley;
3. a connecting member; 30. a coupling portion; 31. the connecting circular hole; 32. connecting a hanging lug;
4. a prosthetic valve; 41. a valve skirt; 42. hanging a valve;
51. a conveying device; 52. implanting a sheath; 53. a coupling structure;
60. the vessel wall; 61. an aortic native valve; 62. a sinus root; 63. the outflow end of the native valve leaf is the valve leaf surface; 64. the native valve leaflets flow into the end side valve leaflet surfaces.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-10, the present embodiment provides a valve implantation positioning assembly, including:
a first fixing anchor 1, one side of the first fixing anchor 1 is suitable for being connected with the valve surface 64 at the inflow end of the native valve leaflet in the human body, and the other side of the first fixing anchor 1 is suitable for being connected with the proximal end of the artificial valve 4;
the second fixed anchor 2 is arranged on the outer layer of the first fixed anchor 1; the second fixation anchor 2 is adapted to be connected to a native valve leaflet outflow end side valve leaflet surface 63 in the human body;
the first fixed anchor 1 and the second fixed anchor 2 are arranged correspondingly.
It should be noted that the closing direction of the native valve refers to the direction indicated by the arrow "P" in fig. 9; the opening direction of the native valve refers to the direction indicated by arrow "Q" in fig. 9; the intervention direction refers to the direction indicated by arrow "S" in fig. 5; the blood flow direction refers to the direction indicated by the arrow "T" in fig. 9; the inflow end refers to a blood inflow surface of a native valve (leaf) in a human body along the blood flow direction, and the outflow end refers to a blood outflow surface of the native valve (leaf) in the human body along the blood flow direction; the proximal end refers to one end of the artificial valve (leaf) close to the heart along the intervention direction, and the end of the artificial valve (leaf) far away from the heart along the intervention direction is a distal end; the artificial valve 4 has a preset relaxation state and a preset contraction state, when the external extrusion force is smaller than the critical deformation stress value, the artificial valve 4 is in the relaxation state, and when the external extrusion force is larger than the critical deformation stress value, the artificial valve 4 is in the contraction state; the valve implantation positioning component can be made of nickel-titanium alloy and other materials with shape memory effect, and can be manufactured by a certain heat setting treatment process after laser engraving; the first fixed anchor 1 and/or the second fixed anchor 2 have preset relaxation states and contraction states, when the external extrusion force is smaller than the critical deformation stress value, the first fixed anchor 1 and/or the second fixed anchor 2 are/is in the relaxation states, and when the external extrusion force is larger than the critical deformation stress value, the first fixed anchor 1 and/or the second fixed anchor 2 are/is in the contraction states; the connection between the first and second anchors 1, 2 includes, but is not limited to, mechanical connection, gluing or welding.
Optionally, the valve implant positioning assembly is released by the implant sheath 52; when the valve implant positioning assembly is released from the implant sheath 52, the first and/or second fixation anchors 1, 2 switch to the relaxed state.
Optionally, the outer side portion of the first fixation anchor 1 is adapted to be connected to a valve surface 64 on the inflow side of a native valve leaflet in a human body, and the inner side portion of the first fixation anchor 1 is adapted to be connected to the proximal end of the prosthetic valve 4.
Optionally, the second fixing anchor 2 is arranged at the outer layer of the first fixing anchor 1; one end of the second fixation anchor 2 in the direction of intervention is adapted to be connected to a valve surface 63 on the outflow end side of the native valve leaflet in the human body.
Optionally, the first and second anchors 1 and 2 are disposed correspondingly, and when the first and second anchors 1 and 2 are in the relaxed state, corresponding portions of the first and second anchors 1 and 2 in the intervention direction form a preset fit gap, so as to clamp or clasp a native leaflet between the first and second anchors 1 and 2 during the positioning of the valve implantation positioning assembly.
In this embodiment, the valve implantation positioning assembly comprises a first fixation anchor 1 and a second fixation anchor 2; one side of the first fixing anchor 1 is suitable for being connected with a valve leaf surface 64 at the inflow end of a native valve leaf in a human body, and the other side of the first fixing anchor is suitable for being connected with a valve leaf surface at the inflow end of the artificial valve 4; the second fixing anchor 2 is arranged on the outer layer of the first fixing anchor 1; the second fixation anchor 2 is adapted to be connected to a native valve leaflet outflow end side valve leaflet surface 63 in the human body; the first fixed anchor 1 and the second fixed anchor 2 are arranged correspondingly; through setting up including first anchor 1 and what correspond double-deck anchor structure including second anchor 2 makes first anchor 1 with second anchor 2 mutually supports in the positioning process and with native leaflet centre gripping or card embrace first anchor 1 with between the second anchor 2, improved positioning accuracy, do not need calcification leaflet and valve frame extrusion to provide radial holding power, just can block artificial valve steadily for a long time, thereby reinforcing positioning component location and/or anchored stability are implanted to the valve.
In particular, the length of the second fixation anchor 2 in the direction of intervention is smaller than the length of the first fixation anchor 1 in the direction of intervention.
Optionally, the length of second anchor 2 along the direction of interveneeing is less than first anchor 1 is along the length of interveneeing the direction to in the positioning and anchoring process, make first anchor 1 is connected with native leaflet inflow end side valve blade face 64 in the human body, makes simultaneously second anchor 2 is connected with native leaflet outflow end side valve blade face 63 in the human body, thereby makes positioning component and native valve in the human body and the tissue structure phase-match around it are implanted to the valve, and then make positioning component better satisfies ergonomic requirement.
In particular, the first fixation anchor 1 comprises a first anchor peak 111;
the second fixation anchor 2 comprises a second anchor peak 21;
the first anchor peak 111 and the second anchor peak 21 are connected in a one-to-one correspondence.
It should be noted that the native valve (leaflet) in this embodiment refers to an aortic valve in a human body, and the structure of the valve implantation positioning assembly provided in this embodiment is based on the structure of the aortic valve; the body tissue structure associated with the native aortic valve 61 in FIGS. 9 and 10 is the vessel wall 60; the native valve can also be a pulmonary valve, a mitral valve or a tricuspid valve, and the structures and numbers of the first anchor peak 111, the second anchor peak 21, the first anchor valley 112, the second anchor valley 22, the anchor rod 121 and the valve anchor 122 can be adjusted according to the actual structure of the native valve in the human body, which is not limited to the cases described in the embodiment; the valve implantation positioning component can be used for clamping and/or clamping a native valve (leaf) in a human body and is pressed with an implanted artificial valve through the valve implantation positioning component so as to keep the implanted artificial valve stable; the valve implantation positioning assembly can also be used to clamp and/or grip a prosthetic valve (leaflet) that has been implanted into the body and then compress against another new prosthetic valve implanted into the body, thereby holding the newly implanted valve stable.
In this embodiment, the first fixing anchor 1 is provided with three sets of the first anchor peaks 111; the second fixing anchor 2 is provided with three sets of the second anchor peaks 21; three sets of the first anchor peaks 111 are provided in one-to-one correspondence with three sets of the second anchor peaks 21.
In particular, the first fixation anchor 1 further comprises a first anchoring valley 112, the first anchoring valley 112 being inwardly warped in the closing direction of the native valve, adapted to be connected with the proximal end of the prosthetic valve 4.
It should be noted that the prosthetic valve 4 is released by the delivery unit in the inner layer of the valve implantation positioning assembly, the prosthetic valve 4 is switched to the relaxed state after being released and is in contact with the first fixing anchor 1, the double-layer structure of the valve implantation positioning assembly can give a certain compression to the prosthetic valve 4 along the closing direction of the native valve through the action of the input unit, so that the prosthetic valve 4 can generate an opposite radial supporting force, and at the moment, the radial supporting force should be controlled within a preset or reasonable range to prevent the native valve leaflet from being damaged by sudden change of shape or structure caused by exceeding the limit stress borne by the prosthetic valve 4.
Optionally, the first anchor valley 112 is of a rounded configuration to avoid damage to the native valve and/or the prosthetic valve 4 during positioning and/or implantation.
Optionally, a valve skirt 41 is arranged at the proximal end of the valve frame of the artificial valve 4.
Optionally, the first fixing anchor 1 is provided with three sets of the first anchor valleys 112, and the three sets of the first anchor valleys 112 are all warped inwards along the closing direction of the native valve, so as to be clamped with the valve skirt 41.
Optionally, the first fixing anchor 1 and the prosthetic valve 4 are arranged independently, and there is no coupling structure between the first fixing anchor 1 and the prosthetic valve 4; the first anchoring valley 112 forms a warping structure inwards along the closing direction of the native valve, so that the valve implanting and positioning assembly is beneficial to being adapted to artificial valves 4 with different specifications and models, and the adaptation range of the valve implanting and positioning assembly is enlarged.
In this embodiment, the first fixation anchor 1 further comprises a first anchor valley 112, the first anchor valley 112 being inwardly warped in the closing direction of the native valve, adapted to be connected with the proximal end of the valve holder of the prosthetic valve 4; by arranging the first anchor valley 112 and enabling the first anchor valley 112 to warp inwards along the closing direction of the native valve, the warping structure of the first anchor valley 112 is clamped with the heart-proximal end of the valve frame of the artificial valve 4, so that the artificial valve 4 is prevented from migrating and sliding into the ventricle, the artificial valve 4 is released quickly and stably in the operation process, and the risk of valve replacement operation is effectively reduced; meanwhile, the inward warping structure of the first anchor valley 112 along the closing direction of the native valve is beneficial to adapting to the artificial valves 4 with different specifications and models, and the adaptation range of the valve implantation positioning assembly is enlarged.
In particular, the second fixation anchor 2 further comprises a second anchoring valley 22, the second anchoring valley 22 being outwardly warped in the opening direction of the native valve, adapted to be connected with a sinus root 62 of a side leaflet of a native leaflet within the human body.
Optionally, the first anchor 1 further includes a first anchor valley 112, the second anchor 2 further includes a second anchor valley 22, and the second anchor valley 22 and the first anchor valley 112 are disposed in a one-to-one correspondence.
In this embodiment, the first fixing anchor 1 is provided with three sets of the first anchor valleys 112; the second tie-down anchor 2 is provided with three sets of the second anchor valleys 22; three sets of the first anchor valleys 112 and three sets of the second anchor valleys 22 are disposed in one-to-one correspondence along the intervention direction.
Optionally, all three groups of the second anchoring valleys 22 are warped outwards along the opening direction of the native valve, so as to be clamped with the sinus roots 62 of the side leaflets of the native valve leaflets in the human body.
Optionally, the inward warped structure of the first anchor valley 112 along the closing direction of the native valve and the outward warped structure of the second anchor valley 22 along the opening direction of the native valve are arranged in a one-to-one correspondence; a preset fit clearance is formed between each pair of the first anchor valley 112 and the second anchor valley 22; the first anchoring valley 112 and the corresponding second anchoring valley 22 are adjusted and/or matched with each other, so that the inflow end side and the outflow end side of the native valve are clamped and/or positioned.
In this embodiment, the second fixation anchor 2 further comprises a second valley 22, the second valley 22 being outwardly warped in the opening direction of the native valve, adapted to connect with the sinus root 62 of the side leaflet of the native leaflet in the human body; the positioning and/or anchoring stability is enhanced by arranging the second anchoring valley 22 and warping the second anchoring valley 22 outwards along the opening direction of the native valve, so that the warped structure of the second anchoring valley 22 is clamped with the sinus root 62 of the side lobe of the native valve leaflet; the inward warping structure of the first anchoring valley 112 along the closing direction of the native valve and the outward warping structure of the second anchoring valley 22 along the opening direction of the native valve are arranged in a one-to-one correspondence manner, so that the structure of the second fixing anchor 2 is better matched with the native valve leaflet and the surrounding tissue structure thereof, the positioning precision of the valve implantation positioning assembly is improved, and the valve implantation positioning assembly is more stable and reliable in the positioning and/or anchoring process.
In particular, the first fixation anchor 1 comprises a shank 121 and a flap anchor 122;
one end of the anchor rod 121 in the direction of intervention is adapted to be directly or indirectly connected with the second fixation anchor 2, and the other end is fixedly connected with the valve anchor 122; the valve anchor 122 is adapted to be attached to the proximal end of the prosthetic valve 4.
It should be noted that the first anchor 1 includes at least two structural forms: one is a peak-valley structure including the first anchor peak 111 and the first anchor valley 112, and the other is an anchor-rod structure including the anchor rod 121 and the valve anchor 122; any one of the first fixing anchor 1 of the peak-valley type structure and the first fixing anchor 1 of the anchor rod type structure can be matched with the second fixing anchor 2 for use, and a preset function is realized; the axis of the anchor rod 121 is parallel to the insertion direction or at a predetermined angle.
Optionally, the first fixing anchor 1 includes three sets of the anchor rods 121, and the three sets of the anchor rods 121 and the three sets of the second anchor peaks 21 are arranged in a one-to-one correspondence.
Optionally, each pair of corresponding anchor rods 121 is fixedly connected with the second anchor peak 21.
Optionally, the valve anchor 122 is disposed at a proximal end of the anchor rod 121 along the intervention direction, and the anchor rod 121 and the valve anchor 122 form a chevron structure; the valve anchor 122 is adapted to snap-fit with the proximal end of the prosthetic valve 4.
In the present embodiment, the first fixation anchor 1 includes a stock 121 and a valve anchor 122; one end of the anchor rod 121 in the direction of intervention is adapted to be directly or indirectly connected with the second fixation anchor 2, and the other end is fixedly connected with the valve anchor 122; the valve anchor 122 is adapted to be connected to the proximal end of the prosthetic valve 4; the first fixing anchor 1 of the anchor rod type structure including the anchor rod 121 and the valve anchor 122 is arranged to be matched with the second fixing anchor 2, so that the positioning and/or anchoring of the valve implantation positioning assembly at the native valve is realized, and on the basis of the first fixing anchor 1 of the peak-valley type structure, the structural form of the valve implantation positioning assembly is expanded, so that the valve implantation positioning assembly can be matched with the existing artificial valve and/or the existing input system, and the adaptation range of the valve implantation positioning assembly is expanded.
Specifically, the valve implantation positioning assembly further comprises a connecting element 3, wherein one end of the connecting element 3 is suitable for being connected with the first anchor peak 111, the second anchor peak 21 and/or the anchor rod 121, and the other end of the connecting element 3 is suitable for being connected with the delivery unit.
It should be noted that, when the first anchor 1 of the peak-valley structure is matched with the second anchor 2, the connecting element 3 is suitable for connecting with the first anchor peak 111 and the second anchor peak 21; the connecting element 3 is adapted to be connected with the anchor rod 121 and the second anchor peak 21 when the first anchor 1 of the anchor rod type structure is matched with the second anchor 2; the coupling portion 30 includes two structural forms, namely the connecting round hole 31 and the connecting hanging lug 32, and any one structural form of the connecting round hole 31 and the connecting hanging lug 32 can realize selective clamping with the conveying unit.
Optionally, the valve implantation positioning assembly is provided with three sets of the connecting pieces 3; the three groups of connecting pieces 3 are arranged in one-to-one correspondence with the three groups of second anchor peaks 21.
In particular, the connector 3 is provided with a coupling portion 30, the coupling portion 30 being adapted to be selectively engaged with a conveying unit.
Optionally, the delivery unit comprises a delivery device 51, an implantation sheath 52 and a coupling structure 53; the implantation sheath 52 is adapted to release the valve implantation positioning assembly and/or prosthetic valve 4; the coupling structure 53 is adapted to selectively snap into engagement with the valve hanger 42 and/or the coupling 30.
Optionally, the coupling portion 30 is selectively snapped with the coupling structure 53; before the valve implantation positioning assembly is released, the coupling part 30 and the coupling structure 53 are kept in a clamping state; when the valve implantation positioning assembly is released through the implantation sheath 52, the coupling portion 30 is out of engagement with the coupling structure 53.
In particular, the coupling portion 30 comprises a connecting circular hole 31 and/or a connecting lug 32, and the connecting circular hole 31 and/or the connecting lug 32 are suitable for being selectively clamped with the clamping portion of the conveying unit.
Optionally, the valve implantation positioning assembly is selectively clamped with the coupling structure 53 through any one of the connection round hole 31 and the connection hanging lug 32.
In this embodiment, the valve implantation positioning assembly further comprises a connecting member 3, wherein one end of the connecting member 3 is suitable for being connected with the first anchoring peak 111, the second anchoring peak 21 and/or the anchor rod 121, and the other end of the connecting member 3 is suitable for being connected with the delivery unit; a coupling part 30 is arranged on the connecting piece 3, and the coupling part 30 comprises a connecting round hole 31 and/or a connecting lug 32; the valve implantation positioning assembly can be selectively clamped with the clamping part of the conveying unit through any one of the structural forms of the connecting round hole 31 and the connecting hanging lug 32, so that the adaptation range of the valve implantation positioning assembly is expanded, and the applicability of the valve implantation positioning assembly is enhanced.
The utility model also provides an intervention system specifically is a valve intervention system, include: a delivery unit and a control unit, and the valve implantation positioning assembly.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A valve implantation positioning assembly, comprising:
the first fixing anchor (1), one side of the first fixing anchor (1) is suitable for being connected with a valve leaf surface (64) at the inflow end of the native valve leaf in the human body, and the other side of the first fixing anchor is suitable for being connected with the proximal end of the artificial valve (4);
the second fixed anchor (2) is arranged on the outer layer of the first fixed anchor (1); the second fixing anchor (2) is suitable for being connected with the valve leaf surface (63) at the outflow end of the native valve leaf in the human body;
the first fixing anchor (1) and the second fixing anchor (2) are arranged correspondingly.
2. The valve implantation positioning assembly of claim 1,
the length of the second anchor (2) in the direction of intervention is less than the length of the first anchor (1) in the direction of intervention.
3. The valve implantation positioning assembly of claim 1,
the first fixation anchor (1) comprises a first anchor peak (111);
the second fixation anchor (2) comprises a second anchor peak (21);
the first anchor peak (111) and the second anchor peak (21) are connected in a one-to-one correspondence manner.
4. The valve implantation positioning assembly of claim 1, wherein the first fixation anchor (1) further comprises a first anchor valley (112), the first anchor valley (112) being inwardly warped in the closing direction of the native valve, adapted to be connected with the valve frame proximal end of the prosthetic valve (4).
5. The valve implant positioning assembly according to claim 4, characterized in that said second fixation anchor (2) further comprises a second anchoring valley (22), said second anchoring valley (22) being outwardly warped in the opening direction of the native valve, adapted to be connected with a sinus root (62) of a side leaflet of a native leaflet in the human body.
6. The valve implantation positioning assembly of claim 1, wherein the first fixation anchor (1) comprises an anchor rod (121) and a valve anchor (122);
one end of the anchor rod (121) along the intervention direction is suitable for being directly or indirectly connected with the second fixing anchor (2), and the other end is fixedly connected with the valve anchor (122); the valve anchor (122) is adapted to be connected to a proximal end of a prosthetic valve (4).
7. The valve implantation positioning assembly of claim 1, further comprising a connector (3), wherein one end of the connector (3) is adapted to be connected to the first anchoring peak (111), the second anchoring peak (21) and/or the anchor rod (121), and the other end is adapted to be connected to a delivery unit.
8. The valve implantation positioning assembly of claim 7, wherein the connector (3) is provided with a coupling portion (30), the coupling portion (30) being adapted to selectively snap-fit with a delivery unit.
9. The valve implantation positioning assembly of claim 8, wherein the coupling portion (30) comprises a connection circular hole (31) and/or a connection lug (32), the connection circular hole (31) and/or the connection lug (32) being adapted to selectively snap-fit with a snap-fit portion of the delivery unit.
10. An interventional system, comprising: a delivery unit and a control unit, and the valve implantation positioning assembly of any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220816948.4U CN217366199U (en) | 2022-04-01 | 2022-04-01 | Valve implantation positioning assembly and intervention system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220816948.4U CN217366199U (en) | 2022-04-01 | 2022-04-01 | Valve implantation positioning assembly and intervention system |
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| CN217366199U true CN217366199U (en) | 2022-09-06 |
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| CN202220816948.4U Active CN217366199U (en) | 2022-04-01 | 2022-04-01 | Valve implantation positioning assembly and intervention system |
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| CN (1) | CN217366199U (en) |
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