CN114681128A - Annuloplasty ring delivery device and annuloplasty system - Google Patents

Abstract

The invention discloses an annuloplasty ring delivery device and an annuloplasty system. The annuloplasty ring delivery device includes a receiver and a lead assembly. The accommodating part is axially provided with an accommodating cavity for accommodating the annuloplasty ring, and two opposite sides of the accommodating part are axially provided with through grooves communicating with the accommodating grooves. The lead wire assembly includes a wire splitting piece and at least one conduit communicating with both ends. The wire splitting piece comprises a main cavity passing through in the axial direction and a plurality of wire branching holes communicating with the main cavity in a radial direction. The accommodating piece is detachably accommodated in the main cavity, and each conduit movably passes through the branching hole. In the annuloplasty ring delivery device provided by the embodiment of the present invention, the catheter is inserted into the shunting hole of the shunting member and simultaneously passes through the annuloplasty ring in the accommodating cavity through the through slot, and the suture that has been sewn into the original annulus is passed through The catheter, after withdrawing the catheter, can couple multiple sutures on the original valve annulus to the annuloplasty ring, and the operation is simple, convenient and fast. At the same time, the proper position of the suture thread on the annuloplasty ring can be ensured.

Description

Annuloplasty Ring Delivery Device and Annuloplasty System

technical field

The present invention relates to the technical field of medical devices, and in particular, to an annuloplasty ring delivery device and an annuloplasty system.

Background technique

Mitral valve insufficiency is one of the most common heart valve diseases today. The main causes are rheumatic heart disease, mitral valve myxoid degeneration, cardiac ischemic disease, cardiomyopathy, etc. The leaflets, chordae tendineae, and papillary muscles develop lesions that prevent the leaflets of the mitral valve from closing completely.

Mitral valve annulus reduction, also known as mitral valve annuloplasty, is one of the basic procedures for mitral valve surgical repair. Reduce mitral regurgitation while maintaining the physiological integrity of the mitral valve structure. For example, an artificial valve annulus is implanted on the valve annulus, and then discontinuous U-shaped sutures are made along the attachment portion of the valve leaflets with non-invasive sutures, and then the size of the valve annulus is adjusted by tightening the sutures to achieve the effect of shrinking the ring.

The prior art discloses an apparatus for the treatment of mitral regurgitation using interventional mitral annuloplasty, which utilizes the interventional instrument to apply a plurality of sutures to the annulus of the mitral valve, and then couple the plurality of sutures to the annulus of the mitral valve. On the annuloplasty ring, the annuloplasty ring is then slid down the suture through the channel to reach the mitral valve. At present, the sutures can be coupled to the annuloplasty ring one by one through a wire guide with a loop, but the operation is cumbersome and inconvenient, and doctors can only empirically determine the position where each suture is coupled to the annuloplasty ring. The position of the suture is appropriate.

SUMMARY OF THE INVENTION

In order to solve the technical problem of conveniently and quickly coupling multiple sutures to the annuloplasty ring, the present invention provides an annuloplasty ring delivery device and an annuloplasty system.

In a first aspect, the present invention provides an annuloplasty ring delivery device, comprising:

an accommodating piece, the accommodating piece is provided with an accommodating cavity in the axial direction, and the two opposite sides of the accommodating piece are provided with a through groove in the axial direction, the through groove communicates with the accommodating cavity, and the accommodating part a cavity for receiving the annuloplasty ring; and

A lead assembly, the lead assembly includes a branch piece and at least one conduit communicating with both ends, the branch piece includes a main cavity passing through in the axial direction and a plurality of branch holes communicating with the main cavity in a radial direction, the The accommodating part is detachably accommodated in the main cavity, and each of the conduits movably passes through the branching hole.

In a second aspect, the present invention provides an annuloplasty system, comprising an annuloplasty ring and the aforementioned annuloplasty ring delivery device, wherein the annuloplasty ring is accommodated in a accommodating cavity of the accommodating member.

Compared with the prior art, the above technical solutions provided by the embodiments of the present invention have at least the following advantages:

In the annuloplasty ring delivery device and the annuloplasty system provided by the embodiments of the present invention, the annuloplasty ring is accommodated in the accommodating cavity of the accommodating member, and the accommodating member is then accommodated in the main cavity of the wire splitter of the lead assembly , and then pass the catheter through the shunt hole of the shunt, and the catheter passes through the annuloplasty ring in the accommodating cavity through the through slot at the same time. When the operator passes the suture that has been sewn into the original valve ring through the catheter, withdraw After the catheter, the sutures can be threaded on the annuloplasty ring, so that multiple sutures on the original valve annulus can be coupled to the annuloplasty ring, and the operation is simple, convenient and quick. At the same time, since the suture is threaded on the annuloplasty ring through the shunt hole of the shunt, it can be ensured that the suture is threaded at a proper position on the annuloplasty ring and the distance between adjacent sutures is uniform.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. In other words, on the premise of no creative labor, other drawings can also be obtained from these drawings.

In the attached picture:

Fig. 1 is the structural schematic diagram of the annuloplasty ring delivery device provided by the embodiment of the present invention;

2 is another structural schematic diagram of the annuloplasty ring delivery device provided by an embodiment of the present invention;

3 is a schematic structural diagram of a container and a sheath provided in an embodiment of the present invention;

4 to 7 are schematic structural diagrams of lead assemblies provided by embodiments of the present invention;

8 is a schematic structural diagram of an annuloplasty ring in a natural state provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of the annuloplasty ring provided in an embodiment of the present invention placed in a accommodating member;

10 to 13 are schematic structural diagrams of a accommodating member provided by an embodiment of the present invention;

14 is a schematic structural diagram of the annuloplasty ring delivery device provided by an embodiment of the present invention;

15 is a cross-sectional view of the accommodating member and the pushing member provided by an embodiment of the present invention;

16 to 19 are schematic views of the operation of the annuloplasty ring delivery device provided by the embodiments of the present invention;

FIG. 20 is a schematic diagram of a native mitral valve annulus according to an embodiment of the present invention;

Fig. 21 is a schematic diagram of the locking of the interventional locking device provided by the embodiment of the present invention.

Detailed ways

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", "head", "tail", etc. is constructed and operated in a specific orientation based on the orientation or positional relationship shown in the drawings, It is only for the convenience of describing the technical solution, rather than indicating that the referred device or element must have a specific orientation, so it should not be construed as a limitation on the present invention.

It should also be noted that, unless otherwise expressly specified and limited, terms such as "installation", "connection", "connection", "fixation" and "setup" should be understood in a broad sense, for example, it may be a fixed connection, or a It can be a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element, or one or more intervening elements may also be present. The terms "first", "second", "third", etc. are only for the convenience of describing the technical solution, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features, thus, Features defined as "first", "second", "third" etc. may expressly or implicitly include one or more of that feature. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are set forth in order to provide a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

In the description of the present invention, it should be noted that, in the field of interventional medical devices, the proximal end refers to the end closer to the operator, while the distal end refers to the end farther away from the operator; the axial direction refers to the end parallel to the medical device. The direction of the line connecting the center of the distal end and the center of the proximal end of the instrument. The above definitions are only for the convenience of expression, and should not be construed as limiting the present invention.

Referring to FIGS. 1 to 21 , an annuloplasty system according to an embodiment of the present invention includes an annuloplasty ring 3 and an annuloplasty ring delivery device 1 . The annuloplasty ring delivery device 1 is used to couple a plurality of sutures 2 that have been sewn into the native annulus 4 of the heart to the annuloplasty ring 3, and to attach the annuloplasty ring along the plurality of sutures 2 through a minimally invasive interventional path. 3 is delivered to the atrium. The annuloplasty ring delivery device 1 can be used to deliver the annuloplasty ring 3 in mitral annuloplasty and tricuspid annuloplasty, with minimally invasive intervention, and the annuloplasty ring can be implanted without cardiac arrest 3 . The annuloplasty ring delivery device 1 includes a receiver 10 , a lead assembly 20 , a pusher 30 , a steering assembly 40 and a sheath 50 .

1 to 11 , the accommodating member 10 is provided with a accommodating cavity 11 in the axial direction, and the two opposite sides of the accommodating member 10 are provided with through grooves 12 in the axial direction. The through grooves 12 communicate with the accommodating cavity 11 and the accommodating cavity 11 is used to accommodate the annuloplasty ring 3 . The lead wire assembly 20 includes a branching member 21 and at least one conduit 22 communicating with both ends. The wire splitting member 21 includes a main cavity 214 passing through in the axial direction and a plurality of wire branching holes 213 communicating with the main cavity 214 in the radial direction. The accommodating member 10 is detachably accommodated in the main cavity 214 , and the conduit 22 movably passes through the branching hole 213 .

In the above-mentioned annuloplasty ring delivery device 1, the annuloplasty ring 3 is accommodated in the accommodating cavity 11 of the accommodating member 10, and the accommodating member 10 is then accommodated in the main cavity 214 of the branching member 21 of the lead assembly 20, and then The catheter 22 is inserted into the shunt hole 213 of the shunt piece 21, and the catheter 22 passes through the annuloplasty ring 3 in the accommodating cavity 11 through the through slot 12 at the same time. 2. Passing through the catheter 22, after withdrawing the catheter 22, the sutures 2 can be threaded on the annuloplasty ring 3, thereby coupling the plurality of sutures 2 on the original annulus 4 to the annuloplasty ring 3, which is easy and convenient to operate fast. At the same time, since the suture 2 is threaded on the annuloplasty ring 3 through the shunt hole 213 of the wire divider 21 , it can be ensured that the suture 2 is threaded at a proper position on the annuloplasty ring 3 and the distance between adjacent sutures is uniform.

It will be appreciated that lead assembly 20 may include one conduit 22 or multiple conduits 22 . The catheter 22 can be movably passed through the shunt hole 213 of the shunt 21. Since the accommodating member 10 with the annuloplasty ring 3 built in is accommodated in the main cavity 214 of the shunt 21, the catheter 22 can pass through the shunt hole 213. One end of the accommodating member 10 is penetrated, and then penetrates into the accommodating cavity 11 from the through groove 12 on one side of the accommodating member 10, and passes through the annuloplasty ring 3 located in the accommodating cavity 11, and then passes through the annuloplasty ring 3 on the other side of the accommodating member 10. Pass through the through slot 12 , and finally pass out from the other end of the wire splitting hole 213 . The catheter 22 passes through the shunt hole 213 and passes through the annuloplasty ring 3 in the accommodating cavity 11 through the through slot 12 . Therefore, the operator passes the suture 2 that has been sewn into the native valve annulus 4 through the catheter 22 and then withdraws the catheter 22 to keep the suture 2 threaded on the annuloplasty ring 3 in the accommodating cavity 11 . Using the detachable catheter 22 to guide the suture 2 to penetrate the annuloplasty ring 3 is easy to operate, and can also shorten the operation time and improve the operation efficiency.

After the annuloplasty ring 3 is placed in the main cavity 214 of the shunt piece 21, the suture 2 is passed through the shunt hole 213 on the annuloplasty ring 3, and the position of the suture 2 on the annuloplasty ring 3 is determined by the shunt hole 213. The relative position to the annuloplasty ring 3 is determined. Due to the fixed positions of the plurality of shunt holes 213 on the shunt piece 21 , it can ensure that the suture 2 is passed through the proper position on the annuloplasty ring 3 and the distance between the adjacent sutures 2 is uniform, thereby ensuring that the annuloplasty ring 3 Uniform shrinkage after being stressed.

12 and 13 , the annuloplasty ring 3 is made of a shape memory material, and the annuloplasty ring 3 is in a C-shape in a natural state, that is, the annuloplasty ring 3 has a natural state and a delivery state, and its two ends in the natural state. Open and C-shaped; when accommodated in a conveying device, it is in a straight-shaped conveying state. The annuloplasty ring 3 has superelasticity, and specifically, an implantable material with suitable elastic properties such as silica gel and nickel-titanium alloy can be selected. As shown in FIG. 13 , the annuloplasty ring 3 can be accommodated in the accommodating member 10 in a flat state due to its superelasticity. Placing the annuloplasty ring 3 in the annuloplasty ring delivery device 1 in a straight state can minimize the external dimension of the annuloplasty ring delivery device 1, which is beneficial to reduce the wound, and thus can reduce the operation caused by the excessive wound. resulting risks. Of course, within an acceptable risk range, the annuloplasty ring 3 can also be provided in other shapes and accommodated in the annuloplasty ring delivery device 1, such as a helical shape. As shown in FIG. 12 , when the annuloplasty ring delivery device 1 reaches the atrium, the annuloplasty ring 3 can be pushed out from the accommodating member 10 to restore the annuloplasty ring 3 to its natural state, forming a C-shape. The shape and size of the annuloplasty ring 3 in the natural state is the same as or close to the shape and size of the original valve annulus 4. After the suture 2 is pierced on the original valve annulus 4 and the annuloplasty ring 3, the patient can be removed by locking and shrinking the ring. The abnormal native valve annulus 4 is restored to a normal state.

Referring to FIGS. 4 to 7 , the lead assembly 20 includes a branching member 21 , a conduit 22 and a lead member 23 . The wire splitting member 21 includes a first cover body 211 and a second cover body 212 that are detachably matched. After the first cover body 211 and the second cover body 212 are closed together, a main cavity 214 which penetrates in the axial direction and a plurality of branch holes 213 which communicate with the main cavity 214 in the radial direction are formed. In this way, the first cover body 211 and the second cover body 212 , which are detachably matched, are convenient for the accommodating member 10 to be accommodated in the main cavity 214 of the wire splitting member 21 .

Referring to FIG. 4 , the wire splitting member 21 further includes a locking knob 215 , and locking holes 216 are respectively provided at positions corresponding to the first cover body 211 and the second cover body 212 . After the accommodating member 10 is accommodated in the main cavity 214 of the wire splitting member 21, the locking knob 215 can pass through the locking holes 216 on the first cover body 211 and the second cover body 212 in sequence, and the first cover body 211 and the The second cover body 212 is locked so as to fix the accommodating member 10 in the main cavity 214 of the wire splitting member 21 . In a specific embodiment, the first cover body 211 and the second cover body 212 are respectively provided with two locking holes 216 correspondingly. Taking the first cover 211 as an example, one of the two locking holes 216 is provided at the proximal end of the first cover 211, the other locking hole 216 is provided at the distal end of the first cover 211, and the two The locking holes 216 are respectively provided on both sides of the main cavity 214 in the axial direction. In this way, the stability of covering the first cover body 211 and the second cover body 212 can be improved, thereby improving the stability of the wire splitting member 21 and facilitating the operation. Of course, in another specific implementation manner, the first cover body 211 and the second cover body 212 can fix the accommodating member 10 in the main cavity 214 of the wire dividing member 21 by means of snap-fit.

Specifically, the number of the branching holes 213 is multiple, and they are arranged at intervals along the axial direction of the branching member 21 . In a specific embodiment, the number of the branching holes 213 is 16, which are evenly spaced along the axial direction of the branching member 21, so that the 16 sutures that have been sewn into the native valve annulus 4 can be respectively sutured through the 16 branching holes. The threads 2 are coupled to the annuloplasty ring 3 evenly spaced apart to ensure that the sutures 2 are passed in the proper position on the annuloplasty ring 3 . Of course, the lead assembly 20 can be configured with stubs 21 with different numbers of shunting holes 213 , and the splinter 21 with the same number of shunting holes 213 can be selected according to the number of sutures 2 sewn into the native valve annulus 4 .

When the annuloplasty ring 3 is made of a soft shape memory material such as silica gel, the annuloplasty ring 3 may not be provided with a threading hole. In a specific embodiment, the annuloplasty ring 3 is first accommodated in the accommodating cavity 11, then the first cover 211 and the second cover 212 are used to cover and fix the accommodating member 10, and then the catheter 22 is passed through the dividing cavity. In the wire hole 213 , the catheter 22 can penetrate through the annuloplasty ring 3 while passing through the branching hole 213 , and a threading hole is formed on the annuloplasty ring 3 . At this time, the suture 2 is passed through the catheter 22, and then the catheter 22 is withdrawn along the free end of the suture 2, so that the suture 2 can be coupled to the annuloplasty ring 3.

When the annuloplasty ring 3 is made of a shape memory material such as nickel-titanium alloy, the annuloplasty ring 3 can be provided with a plurality of threading holes corresponding to the plurality of branch holes 213 , and the accommodating member 10 is accommodated in the main cavity 214 of the wire branching member 21 . In the middle, the threading hole of the annuloplasty ring 3 is connected with the threading hole 213 one by one. In this case, the annuloplasty ring 3 is first accommodated in the accommodating cavity 11, and then a plurality of catheters 22 are respectively passed through the multiple threading holes of the annuloplasty ring 3, and then pass through the first cover 211 and The second cover 212 covers the fixed accommodating member 10 and the plurality of conduits 22 . At this time, the suture 2 is passed through the catheter 22, and then the catheter 22 is withdrawn along the free end of the suture 2, so that the suture 2 can be coupled to the annuloplasty ring 3.

The wire splitting member 21 can be made of polymer material or metal material. In order to facilitate the observation of the internal condition of the wire splitting member 21 , it is preferably a transparent polymer material, such as polymethyl methacrylate (PMMA for short), poly-carbonate (PC for short) and other polymer materials. The catheter 22 can be made of a polymer material with certain support, such as poly-ether-ether-ketone (PEEK for short), polyimide (PI for short) and other polymer materials.

Referring to FIG. 5 , the lead assembly 20 further includes a lead member 23 , and the lead member 23 is movable through the catheter 22 . The lead member 23 includes a rod-shaped portion 231 and an annular portion 232 provided at one end of the rod-shaped portion 231 . The suture 2 can pass through the annular portion 232 , and the rod-shaped portion 231 is used to drive the suture 2 through the catheter 22 . It can be understood that after the catheter 22 is passed through the shunt hole 213 and the annuloplasty ring 3 is passed through, the lead member 23 can be moved in the through catheter 22, and then the suture 2 can be passed through the annular portion 232 of the lead member 23 and pulled At the other end of the rod-shaped portion 231, the suture 2 is guided through the catheter 22, and then the catheter 22 is withdrawn along the free end of the suture 2, so that the suture 2 can be threaded on the annuloplasty ring 3, at this time Complete the lead of suture 2.

The annular portion 232 may be a metal ring, specifically, may be made of an elastic metal wire, preferably a nickel-titanium alloy wire with superelastic properties. The rod-shaped portion 231 may be a straight rod, and may be specifically made of 304 stainless steel or Nitinol.

Referring to FIGS. 8 to 11 , the accommodating member 10 includes a accommodating cavity 11 and a through groove 12 , the distal end of the accommodating member 10 is provided with an opening, and the opening connects the accommodating cavity 11 and the through groove 12 . In this way, after the plurality of sutures 2 are coupled to the annuloplasty ring 3, the annuloplasty ring 3 can be pushed out of the opening of the holder 10, and the sutures 2 can also be along with the annuloplasty ring 3 from the opening along the through slot 12. roll out. The accommodating member 10 is a cylindrical structure with an opening 10 a at the distal end and a connecting cavity at the proximal end for connecting the sheath tube 50 . Of course, the accommodating member 10 can also be a columnar structure of other shapes. The accommodating member 10 can be made of a metal material or a polymer material with strong rigidity, such as 304 stainless steel, polyether ether ketone and the like.

Referring to FIGS. 14 and 15 , the annuloplasty ring delivery device 1 further includes a pusher 30 , and the distal end of the pusher 30 is movably accommodated in the accommodating cavity 11 . In this way, after the plurality of sutures 2 are coupled to the annuloplasty ring 3 , the annuloplasty ring 3 can be pushed out of the accommodating cavity 11 through the pusher 30 .

Specifically, the push member 30 includes a push rod 31 and a push block 32 fixedly connected with the distal end of the push rod 31 . The push rod 31 is fixedly connected with the push block 32, and the fixed connection method includes connection methods such as welding, bonding or snapping. The push block 32 is movably accommodated in the accommodating cavity 11 , and the cross-sectional area of the push block 32 in the radial direction is larger than the cross-sectional area of the push rod 31 in the radial direction. In this way, the contact area between the pushing block 32 and the annuloplasty ring 3 can be increased, thereby improving the stability of pushing the annuloplasty ring 3 out of the accommodating cavity 11 . Further, the pushing block 32 and the pushing rod 31 can be integrally formed, so that the annuloplasty ring 3 can be pushed out of the accommodating cavity 11 more stably. The push rod 31 and the push block 32 can be made of metal material or polymer material with strong rigidity, such as 304 stainless steel, or polyether ether ketone.

14 and 15, the annuloplasty ring delivery device 1 further includes a sheath 50, which is a tubular structure with an inner lumen. The sheath 50 is used to receive the pusher 30 . The sheath tube 50 is fixedly connected to the proximal end of the accommodating member 10, specifically, the sheath tube 50 is fixedly connected to the connection cavity of the proximal end of the accommodating member 10 by welding, bonding or snapping. The inner cavity of the sheath tube 50 communicates with the accommodating cavity 11 , and the pushing member 30 is movably accommodated in the inner cavity of the sheath tube 50 and the accommodating cavity 11 . In this way, it is convenient to push the pushing member 30 relatively smoothly, so that the pushing member 30 pushes the annuloplasty ring 3 away from the accommodating member 10 . The sheath tube 50 can be made of a rigid metal material or a polymer material, such as 304 stainless steel or polyether ether ketone.

Continuing to refer to FIG. 14 , the annuloplasty ring delivery device 1 further includes a manipulation assembly 40 , and the manipulation assembly 40 includes a handle 42 and an operating member 41 disposed on the handle 42 . The handle 42 is fixedly connected to the proximal end of the sheath tube 50 , and the operating member 41 is connected to the proximal end of the pushing member 30 and is used to control the axial movement of the pushing member 30 . In this way, the pushing member 30 can be driven to move axially by manipulating the operating member 41 , so that the annuloplasty ring 3 can be pushed out of the accommodating member 10 .

Specifically, the operating member 41 includes a knob and a slider, the slider is located in the inner cavity of the handle 42 , and the knob and the handle 42 are coaxially arranged. The sliding block is fixedly connected with the proximal end of the pushing member 30 , that is, the sliding block is fixedly connected with the proximal end of the pushing rod 31 . The peripheral side of the slider is provided with external threads, and the knob is provided with internal threads matched with the external threads. The slider is driven to move in the axial direction by rotating the knob, so that the pushing member 30 is controlled to move in the axial direction through the rotation of the knob. Of course, the operating member 41 may also only include a knob, which is directly threadedly connected to the push rod 31 through the knob, and is rotated to drive the push rod 31 to move in the axial direction. The entire control assembly 40 may be made of high-strength polymer materials, such as acrylonitrile-butadiene-styrene plastic (ABS for short), polypropylene (PP for short).

Referring to FIG. 16 to FIG. 19 , the operation process of the annuloplasty ring delivery device 1 provided by the embodiment of the present invention is as follows.

First, the annuloplasty ring 3 is placed in the accommodating member 10 and the accommodating member is placed in the main cavity 214 of the wire dividing member 21 for fixation, and the catheter 22 is inserted through the dividing hole 213 of the wire dividing member 21 on the annuloplasty ring 3 .

Then, the free end of the suture thread 2 that has been sutured on the native valve annulus 4 is passed through the annular portion 232 of the lead piece 23, and the free end of the suture thread 2 is passed through the catheter 22 through the lead piece 23, thereby completing the suture thread 2 Perforated on the annuloplasty ring 3 .

Specifically, the threading of each suture thread 2 can be completed in sequence according to the serial number marked on the lead assembly 20 . Referring to FIG. 20 , the position of the first branching hole 213 at the distal end of the lead assembly 20 corresponds to the position of the right fiber triangle in the native valve annulus 4 . The order of the suture 2 on the annuloplasty ring 3 is right fibrous triangle, P3, P2, P1, and left fibrous triangle. In this way, the corresponding positions of the annuloplasty ring 3 and the positions of the native valve annulus 4 are in a one-to-one correspondence, so that the tissue of the native valve annulus 4 can be driven to perform the function of shrinking the ring. In Figure 20, AV represents aortic valve aortic valve, CS represents coronary sinus, ALC represents left fibrous triangle, PMC represents right fibrous triangle, A1/A2/A3, P1/P2/P3 respectively represent the upper valvuloplasty ring 3 s position. The native valve annulus 4 in the embodiment of the present invention is the native valve annulus of the mitral valve.

Finally, after a plurality of sutures 2 are passed through the annuloplasty ring, the catheter 22 is withdrawn, the first cover body 211 and the second cover body 212 of the wire splitter are unlocked, and the first cover body 211 and the second cover body 212 are removed. Separate and withdraw.

Referring to FIG. 16, it is shown the state after the lead assembly 20 is withdrawn, each suture 2 is passed through the annuloplasty ring 3 in the annuloplasty ring delivery device 1, and the other end of the suture 2 is sutured to the patient's native annulus. 4 on.

Referring to FIGS. 17 and 18 , the distal end of the annuloplasty ring delivery device 1 enters a target location in the heart such as the left atrium through a minimally invasive heart along the suture 2 that has been pierced. After the annuloplasty ring delivery device 1 enters the target position, the annuloplasty ring 3 is pushed out by driving the operating member 41 . At this time, the annuloplasty ring 3 and the suture 2 will be pushed out from the annuloplasty ring delivery device 1 at the same time.

Referring to FIG. 19 , the annuloplasty ring 3 is completely pushed out of the accommodating cavity 11 of the annuloplasty ring delivery device 1 and released, and the annuloplasty ring 3 is restored to its natural state due to its shape memory function, and is aligned with the shape structure of the native valve annulus 4, that is, the valve. The annulus 3 is aligned with the positions P1, P2, and P3 of the native annulus 4.

20 and 21, through the intervention of the locking device 5, the annuloplasty ring 3 is attached to the native annulus 4 and the adjacent sutures 2 are locked in sequence, thereby completing the implantation of the annuloplasty ring 3 and achieving retraction. Ring effect. Since the interventional locking device 5 is relatively common in the field of interventional medicine, it will not be described in detail here.

It can be understood that the above examples only represent the preferred embodiments of the present invention, and their descriptions are more specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention; In other words, without departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some deformations and improvements can be made, and these all belong to the protection scope of the present invention; All equivalent transformations and modifications made shall fall within the scope of the claims of the present invention.

Claims (10)

1. An annuloplasty ring delivery device, characterized in that, comprising: an accommodating piece, the accommodating piece is provided with an accommodating cavity in the axial direction, and the two opposite sides of the accommodating piece are provided with a through groove in the axial direction, the through groove communicates with the accommodating cavity, and the accommodating part a cavity for receiving the annuloplasty ring; and A lead assembly, the lead assembly includes a branch piece and at least one conduit communicating with both ends, the branch piece includes a main cavity passing through in the axial direction and a plurality of branch holes communicating with the main cavity in a radial direction, the The accommodating part is detachably accommodated in the main cavity, and each of the conduits movably passes through the branching hole. 2 . The annuloplasty ring delivery device according to claim 1 , wherein the wire divider comprises a first cover body and a second cover body that are detachably engaged. 3 . 3 . The annuloplasty ring delivery device according to claim 2 , wherein the distal end of the accommodating member is provided with an opening, and the opening communicates with the accommodating cavity and the through groove. 4 . 4 . The annuloplasty ring delivery device according to claim 3 , wherein the annuloplasty ring delivery device further comprises a pusher, and the distal end of the pusher is movably accommodated in the accommodating cavity. 5 . . 5 . The annuloplasty ring delivery device according to claim 4 , wherein the pushing member comprises a pushing rod and a pushing block fixedly connected with the distal end of the pushing rod, the cross-sectional area of the pushing block along the radial direction. 6 . It is larger than the cross-sectional area of the push rod in the radial direction. 6 . The annuloplasty ring delivery device according to claim 5 , wherein the annuloplasty ring delivery device further comprises a sheath, the sheath is fixedly connected to the proximal end of the accommodating member, and the sheath The inner cavity of the tube communicates with the accommodating cavity, and the pushing member is movably accommodated in the inner cavity of the sheath tube and the accommodating cavity. 7 . The annuloplasty ring delivery device according to claim 6 , wherein the annuloplasty ring delivery device further comprises a manipulation assembly, the manipulation assembly comprising a handle and an operating member provided on the handle, the The handle is fixedly connected with the proximal end of the sheath tube, and the operating member is connected with the proximal end of the pushing member and used to control the axial movement of the pushing member. 8. The annuloplasty ring delivery device according to any one of claims 1-7, wherein the lead assembly further comprises a lead member movably extending through the catheter, the lead member comprising A rod-shaped portion and an annular portion provided at one end of the rod-shaped portion. 9. An annuloplasty system, characterized in that it comprises an annuloplasty ring and the annuloplasty ring delivery device according to any one of claims 1 to 8, wherein the annuloplasty ring is accommodated in the accommodating part. contained in the cavity. 10 . The annuloplasty system according to claim 9 , wherein the annuloplasty ring is made of a shape memory material, and the annuloplasty ring is C-shaped in a natural state. 11 .

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