CN114617593A - Rivet device and rivet conveyor - Google Patents

Abstract

The invention relates to the technical field of medical instruments, in particular to an anchor device, an anchor conveyor and a transmitter, wherein the anchor device comprises: the anchor rod comprises a nail body, a thread guide device which is sleeved on the nail body and rotates relative to the nail body, and an anchor seat which is connected to the nail body and can drive the nail body to rotate, wherein the anchor seat is provided with a connecting thread which is detachably connected with an anchor conveyer.

Description

Rivet device and rivet conveyer

Technical Field

The invention relates to the technical field of medical instruments, in particular to an anchor device and an anchor conveyor.

Background

Tricuspid insufficiency, or tricuspid regurgitation, is a disease of the structural heart valve type in which the tricuspid valve, located between the right atrium and right ventricle, does not close completely when the right ventricle contracts (systolic phase). Flowing blood back from the right ventricle to the right atrium increases the right atrial and right ventricular volumes and pressure, more likely if severe enough to increase the central venous volume and pressure. The etiology is divided into primary and secondary. Primary tricuspid insufficiency refers to a defect that exists only in the tricuspid valve, such as infectious endocarditis; secondary tricuspid insufficiency refers to a valve defect due to some other pathology, such as left ventricular failure or pulmonary hypertension.

The mechanism is that right ventricle expansion causes the valve base (annulus) to expand, causing the three leaflets to be too far apart to contact each other; or one or more of the three lobes is abnormal. A slight amount of tricuspid regurgitation may not affect the body. However, as the condition becomes more severe, the impact also increases. Moderate and severe tricuspid regurgitation can change the shape of the heart. This can lead to permanent heart damage, leading to heart failure and death.

Mitral insufficiency or regurgitation is a structural heart valvulopathy in which the mitral valve does not close properly when the heart pumps blood. I.e., an abnormality in which blood flows from the left ventricle back through the mitral valve into the left atrium when the left ventricle contracts. Mitral insufficiency is the most common form of valvular heart disease. The etiology is divided into primary and secondary. Caused by the mitral valve problem, is known as primary mitral insufficiency. Secondary mitral insufficiency is primarily due to stretching of the mitral annulus and displacement of the papillary muscles as a result of left ventricular dilation.

Currently mild mitral and tricuspid regurgitation is treated primarily with medications. Major surgical interventions are mainly replacement and repair, and surgical interventions are dominant. Although clinically effective, some limitations remain. The replacement resects the subvalvular device, which can cause contractile dysfunction; anticoagulation is required; there is always a risk of intima inflammation and thromboembolism in the artificial valve. The operation time of the repair operation is long; difficult to teach and learn.

Treatment of tricuspid insufficiency or tricuspid regurgitation, mitral insufficiency or mitral regurgitation is currently under vigorous development in the form of transcatheter interventional therapy, but the products are still not mature. Surgical replacement and repair procedures are difficult, failure rate is high, patient trauma is large, postoperative healing time is long, and often accompanied by posterior complications and the like. Some products appear on the market of transcatheter interventional replacement, but the nature of the replacement still replaces the functions of the human body, frequently causes complications along with the increase of time, and is not a long-term effective treatment mode. Transcatheter interventional prostheses present significant difficulties in securing and detaching instruments to and from lesions in the body, and currently there are few suitable products and techniques.

Disclosure of Invention

The invention provides an anchor device, an anchor conveyor and a transmitter which are beneficial to improving release stability.

In one aspect, the present application provides an anchor device comprising: the nail body, the thread guide which is sleeved on the nail body and can rotate relative to the nail body, and the anchor seat which is connected to the nail body and can drive the nail body to rotate; the anchor seat is provided with a connecting thread for connecting with the anchor conveyor.

Preferably, in the above-mentioned anchor device, a first accommodating cavity is formed in the anchor base from the proximal end thereof along the axial direction and toward the distal end, the connecting thread is disposed in the first accommodating cavity, and a second accommodating cavity for fixing the nail body is formed in the anchor base from the distal end thereof along the axial direction and toward the proximal end.

Preferably, in an anchor device as described above, the anchor base is any one of a cylinder, a polygonal column or a special-shaped column.

Preferably, in the above-mentioned anchor device, the thread guide is a ring-shaped thread guide post having a thread guide hole, or the thread guide is a ring body having a thread guide hole.

In yet another aspect, the present application further provides an anchor feeder, comprising: the actuating lever, connect the actuating lever and in rotatable transport connecting piece under the actuating lever drives, transport connecting piece is equipped with and is used for dismantling the transport connecting portion of threaded connection with the anchor nail device.

Preferably, the anchor transporter is provided with a connecting groove at the proximal end thereof for connecting the driving rod, and a transporting connecting part at the distal end thereof for connecting the anchor device.

Preferably, the anchor conveyor includes a conveying pipe body for accommodating the driving rod and an anchor holder connected to the conveying pipe body; the anchor holder fixer comprises a near-end connecting port positioned at the near end of the anchor holder fixer and a far-end connecting port positioned at the far end of the anchor holder fixer, the diameter of the near-end connecting port is matched with that of the conveying connecting piece, and the far-end connecting port is matched with the anchor holder of the anchor device; the far end of the conveying pipe body is fixedly connected with the near end of the anchor seat fixer.

Preferably, the above-mentioned anchor feeder, wherein includes: the transmission tube body is provided with a through cavity for the rivet conveyor device to pass through.

Preferably, an anchor feeder as described above, wherein the delivery tube comprises:

a first pipe body;

a second tubular body sleeved to the first tubular body to form a through cavity housing an anchor device and an anchor feeder.

Preferably, the anchor feeder is one wherein the delivery tube is provided with a wire notch.

Compared with the prior art, the beneficial effects of the application include:

1. the application provides an anchor block of anchor device has the connecting thread that is used for being connected with the anchor conveyer, consequently can realize the threaded connection with the anchor conveyer, releases through the spiral mode after anchor device location, has improved the stability of release. In addition, the anchor device lead wire ware of this application can rotate around the nail body, consequently can reduce the winding interference risk of lead wire.

2. The utility model provides a pair of anchor conveyer includes the transport connecting piece of being connected with the actuating lever, and this transport connecting piece has the transport connecting portion with anchor device detachable threaded connection, consequently can realize with anchor device threaded connection, releases through the spiral mode after anchor device location, has improved the stability of release. In addition, the driving rod is connected with the anchor device through the conveying connecting piece, and the threads of the connecting part can be arranged on the conveying connecting piece, so that the universality of the anchor conveyor is favorably provided.

Drawings

Fig. 1 is a cross-sectional view of an anchor device provided in accordance with an embodiment of the present invention;

fig. 2 is a schematic structural view of an anchor device according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of an anchor base of an anchor assembly according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an anchor block of an anchor device according to an embodiment of the present invention;

FIG. 5 is a front view of an anchor block of an anchor device provided in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural view of an anchor device according to an embodiment of the present invention;

fig. 7 is a schematic structural view of an anchor device according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an anchor device according to an embodiment of the present invention;

FIG. 9 is a schematic view of a lead assembly of an anchor delivery device according to an embodiment of the present invention;

FIG. 10 is a schematic view of a configuration of a shank of an anchor transporter in accordance with an exemplary embodiment of the present disclosure;

FIG. 11 is a schematic structural view of a shank of an anchor transporter in accordance with an embodiment of the present invention;

FIG. 12 is a schematic view of a configuration of a shank of an anchor transporter in accordance with an exemplary embodiment of the present invention;

FIG. 13 is a schematic view of a configuration of a shank of an anchor transporter in accordance with an embodiment of the present invention;

FIG. 14 is a schematic structural view of an anchor transporter in accordance with an embodiment of the present invention;

FIG. 15 is a schematic view of a transfer connection in an anchor transporter in accordance with an embodiment of the present invention;

FIG. 16 is a schematic view of a transfer connector of an anchor transporter in accordance with an embodiment of the present invention;

FIG. 17 is a schematic view of an anchor holder anchor in an anchor feeder according to an embodiment of the present invention;

FIG. 18 is a schematic structural view of an anchor transporter in accordance with an embodiment of the present invention;

FIG. 19 is a schematic view of an anchor holder anchor in an anchor delivery device according to an embodiment of the present invention;

FIG. 20 is a schematic view of an anchor feeder configuration provided by an embodiment of the present invention;

FIG. 21 is an enlarged schematic view of a portion of an anchor feeder structure provided in accordance with an embodiment of the present invention;

FIG. 22 is a diagrammatic illustration of anchor axial movement of an anchor feeder according to an embodiment of the present disclosure;

FIG. 23 is a schematic view of an anchor rotation movement process of an anchor transporter in accordance with an embodiment of the present invention;

FIG. 24 is a schematic view of an anchor release movement of an anchor transporter in accordance with an embodiment of the present invention;

fig. 25 is a schematic structural view of a transfer tube of an anchor feeder according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like 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, in the field of interventional medical devices, the proximal end refers to the end closer to the operator, and the distal end refers to the end farther from the operator; axial refers to a direction parallel to the line connecting the center of the distal end and the center of the proximal end of the medical device in its natural state. The above definitions are for convenience only and should not be construed as limiting the present invention.

In some embodiments, an anchor device, comprising: the anchor rod comprises a nail body, a thread guide device which is sleeved on the nail body and rotates relative to the nail body, and an anchor seat which is connected to the nail body and can drive the nail body to rotate, wherein the anchor seat is provided with a connecting thread which is detachably connected with an anchor conveyer.

Schematically, as shown in fig. 1 and 2, an anchor device 1000 is provided, wherein the nail body 12 is inserted into the second receiving cavity 112 to achieve static coupling between the anchor seat 11 and the nail body 12. When the anchoring device reaches the target region, the anchor seat 11 rotates according to a predetermined direction to drive the nail body 12 to anchor into the human tissue.

In use, a flexible elongate member is inserted into the thread guide 13 of the anchor device, a first anchor device carrying the flexible elongate member is driven by the anchor conveyor to reach a target position or a target area, a force is applied to the anchor conveyor, the nail body 12 penetrates into the target position or the target area under the action of the force and is firmly gripped, the anchor device with the flexible elongate member is continuously conveyed after the anchor device is completely fixed, the flexible elongate member is tightened after all the anchor devices are conveyed, the target tissue is reduced by the pulling force of the flexible elongate member, the proximal end of the flexible elongate member is locked when the target tissue is reduced to a desired state, for example, a clampable column body is arranged at the distal end of the flexible elongate member, and the column body is clamped under the state that the flexible elongate member needs to be fixed, so that a part of the flexible linear object inserted into the column body is located between the flexible linear object and the column body The static coupling serves the purpose of locking.

Where the flexible elongate member includes, but is not limited to, a wire, thread, rope, strip, band, etc., provided that the flexible elongate member is of sufficient length and material to be implanted in the body. Preferably, the flexible elongate member is a medical suture.

The annular ring repair method comprises the steps of fixing a plurality of anchoring devices penetrating into the same flexible linear object at a target position or in a target area under the action of an anchoring conveyer, tightening the flexible elongated members to enable the flexible elongated members to drive the target position or the target area to move, and locking the flexible elongated members when target tissues are adjusted to the expected position to achieve the annular ring repair purpose.

The application provides an anchor block of anchor device has the connecting thread that is used for being connected with the anchor conveyer, consequently can realize the threaded connection with the anchor conveyer, releases through the spiral mode after anchor device location, has improved the stability of release. In addition, the anchor device lead wire ware of this application can rotate around the nail body, consequently can reduce the winding interference risk of lead wire.

As shown in fig. 1 and 2, in some embodiments, a first receiving cavity 111 is axially opened on the proximal end surface of the anchor seat 11, the connecting screw 1110 is disposed in the first receiving cavity, and a second receiving cavity 112 is axially opened on the distal end surface of the anchor seat 11 for fixing the nail body. In the state that the first accommodating cavity is provided with the connecting thread, the rivet conveyor rotationally connected with the first accommodating cavity is provided with an external thread corresponding to the connecting thread. When the anchor conveyor is rotatably connected inside the accommodating cavity through the external thread, the anchor seat is rigidly connected with the anchor conveyor to realize the connection of the anchor conveyor and the anchor device, and the force acting on the anchor conveyor can be stably transmitted to the anchor device to ensure that the anchor device stably and controllably penetrates into target tissue.

Further, in some embodiments, as shown in fig. 3, the first receiving cavity 111 and the second receiving cavity 112 are both circular, the first receiving cavity 111 may be communicated with the second receiving cavity 112, a diameter of the first receiving cavity 111 in the communicated state is not smaller than a diameter of the second receiving cavity 112, a step surface is formed between the first receiving cavity 111 and the second receiving cavity 112, and a maximum travel distance of the anchor conveyor relative to the first receiving cavity 111 is a distance from an end surface of the first receiving cavity 111 to the step surface in a state where the first receiving cavity is connected to the anchor conveyor. In some embodiments, as shown in fig. 4, the first receiving cavity 111 and the second receiving cavity 112 may be independent from each other. The diameter of the first receiving cavity 111 and the diameter of the second receiving cavity 112 may be set independently from each other in a state of being independent from each other.

In some embodiments, the anchor is a circular, polygonal cylinder, or other shaped cylinder. Such as the cylindrical shape shown in fig. 5, 6 and 7, the shape of the anchor seat is determined according to the actual application, for example, a non-circular body as shown in fig. 6 or 7 may be used to achieve the connection between the anchor seat and the anchor feeder.

In some embodiments, the wire guide 13 is a ring-shaped wire guide cylinder with a wire guide hole 131, and the ring-shaped wire guide cylinder is sleeved on the proximal end of the nail body 122 or the anchor seat 11; schematically, as shown in fig. 7 and 8, the wire guider 13 is a ring-shaped wire guiding cylinder with a wire guiding hole 131, and the ring-shaped wire guiding cylinder is sleeved on the proximal end of the nail body 122. Further schematically, as shown in fig. 4, the wire guide 13 is a ring-shaped wire guide cylinder with a wire guide hole 131, the ring-shaped wire guide cylinder is sleeved on the anchor seat 11, and further, the ring-shaped wire guide cylinder may be located on the proximal end of the anchor seat 11 or on the distal end of the anchor seat 11.

It should be noted that the thread guide 13 may be located in other components, and is intended to make the annular thread guiding column perform axial rotation movement relative to the anchor base 11 or the nail body 122 so as to make the thread guiding hole 131 fit to the force bearing point of the flexible elongated member, and after the thread guide 13 or the thread guiding hole 131 fits to the flexible elongated member, a force is applied to the flexible elongated member, and the force drives the anchoring device to displace the anchoring device to drive the target tissue to adjust to the desired position.

In some embodiments, the thread guide 13 is a ring body, as shown in fig. 9, the ring body is disposed on the end surface of the anchor seat 11 facing the nail body, and the ring body rotates around a connection end, specifically, the ring body includes a connection end 132 and a ring body, the connection end 132 is movably disposed on the end surface of the anchor seat 11 facing the nail body, the ring body forms the thread holes 131, the flexible elongated members pass through the thread holes 131, and the flexible elongated members can slide in the thread holes 131, and pulling the flexible elongated members can make the anchor devices approach each other, thereby causing the annular tissue to tighten. Because the volume of the ring body is relatively less, the ring body is fixed in the human body, so that the resistance to blood is relatively reduced, and the influence on the blood flow is reduced.

In some embodiments, the nail body 12 comprises a nail body connecting section 122 at the proximal end and an anchoring nail member 121 at the distal end, the nail body connecting section 122 is connected with the anchoring nail member 121, the nail body connecting section 122 penetrates into the second receiving cavity 112 to be connected with the anchoring base 11, the nail tip section of the anchoring nail member 121 is used for penetrating into the human body tissue under the action of external force, and the nail body spiral section is used for rotating into the human body tissue after the nail tip section penetrates into the human body tissue to fix the anchoring nail member 121 with the human body tissue.

In some embodiments, as shown in fig. 1, the nail body 10 includes an anchor body 121, and the anchor body 121 may be a spiral anchor, and the spiral anchor contacts and penetrates the target tissue under the action of the force in the rotational direction, and the contact area between the spiral anchor and the target tissue continuously increases with the continuous action of the force until the spiral anchor is fixed on the target tissue. Further, the nail body 12 further includes a nail body connecting section 122, and the annular lead cylinder (for example, the lead device 13 shown in fig. 2) is sleeved on the nail body connecting section 122 and performs axial rotation movement with the nail body connecting section 122 as an axis. Further, the shank attachment section 122 and the helical anchor may be integrally formed to form the shank 12.

In some embodiments, as shown in fig. 10, the nail body 12 includes an anchor body 121, the anchor body 121 may be a conical anchor, the conical anchor includes a conical support pillar, a spiral engaging piece is disposed on the periphery of the conical support pillar, and the spiral engaging piece extends spirally along the conical support pillar from the vertex of the conical support pillar. Under the effect of direction of rotation effort, the target tissue is pierced to the top of its circular cone type support column to toper anchor connector, and spiral card is organized contact target tissue afterwards to along with the continuous effect of effort, spiral card piece and target tissue area of contact increase.

In some embodiments, the nail body 12 includes an anchor body 121, the anchor body 121 may be a hook-shaped anchor, the hook-shaped anchor may be formed of a memory alloy material, as shown in fig. 11, the hook-shaped anchor is linear when not penetrating into the target tissue, and is hook-shaped when contacting a temperature adapted to the memory temperature, as shown in fig. 12, the nail body 12 may include at least one hook-shaped anchor, and preferably, the nail body 12 includes at least two hook-shaped anchors, and the tip orientations of the at least two hook-shaped anchors are different.

In some embodiments, the body 12 includes an anchor body 121, as shown in fig. 13, the anchor body 121 may be a claw anchor, and the claw anchor may be formed of a memory alloy material, the claw anchor may be linear when not penetrating the target tissue, and the claw anchor may be claw-shaped when penetrating the target tissue and grip the target tissue.

In some embodiments, other configurations and shapes of the shank 12 may be used, and the several configurations of the shank 12 provided by the present disclosure are merely illustrative and not further limiting of the shank 12.

Example two

As shown in fig. 14, the present application further provides an anchor feeder, comprising:

including actuating lever 4, connect actuating lever 4 and in rotatable conveying connecting piece 5 under actuating lever 4 drives, conveying connecting piece 5 is equipped with and is used for can dismantling threaded connection's conveying connecting portion 511 with the anchor device.

During the transportation process, the anchor conveyer and the anchor device penetrated with the flexible elongated member are fixedly connected through the transportation connecting part 511, when the anchor device is transported to the target position, a rotating force is applied to the driving rod 4, the nail body 12 of the anchor device enters the target position or the target area under the action of the rotating force and is firmly held, after the anchor device is fixed, an acting force is applied to the driving rod 4 to separate the anchor device from the transportation connecting part 5, and the release of the current anchor device is realized. And after one anchoring device is fixed, continuing to convey the next anchoring device penetrated with the flexible elongated member until the completion of the conveying of the anchoring device is completed, tightening the flexible elongated member after the completion of the conveying of the anchoring device, reducing the valve annulus tissue by the pulling force of the flexible elongated member, and fixing the proximal end of the flexible elongated member after the target tissue is reduced to a preset state.

The utility model provides a pair of anchor conveyer includes the transport connecting piece of being connected with the actuating lever, and this transport connecting piece has the transport connecting portion with anchor device detachable threaded connection, consequently can realize with anchor device threaded connection, releases through the spiral mode after anchor device location, has improved the stability of release. In addition, the driving rod is connected with the anchor device through the conveying connecting piece, and the threads of the connecting part can be arranged on the conveying connecting piece, so that the universality of the anchor conveyor is favorably provided.

In some embodiments, the length of the driving rod 4 may be determined according to the actual application, and in some embodiments, the length of the driving rod 4 may be set to be a short-distance rod when the distance between the operation member (for example, the operation member may be an operation handle) of the anchor conveyor and the target to be conveyed is short, and the driving rod may be set to be a long-distance rod. In addition, the driving rod can be a flexible rod or a rigid rod. The driving rod can be selected according to the actual application, and is not limited in particular.

The proximal end of the conveying connecting piece 5 is provided with a connecting groove 52 connected with the driving rod 4, and the driving rod 4 is inserted into the connecting groove 52 so that the driving rod 4 is rigidly connected with the conveying connecting piece 5.

In some embodiments, as shown in fig. 15 and 16, the delivery connector 5 includes a first cylindrical body 510 and a delivery connector 511 connected to the first cylindrical body 510, and the distal end of the delivery connector 5 is provided with the delivery connector 511 for connecting an anchor device, which may be a cylindrical threaded connector. The delivery connection portion 511 is adapted to be detachably connected to the anchoring device or anchor base, for example, the delivery connection portion 511 is adapted to be screwed into a connection thread 1110 of the anchoring device, and the delivery connection member 5 is adapted to be rotated in a first predetermined direction under the action of the driving rod 4 to rotate the anchoring device, so as to penetrate and grip the target tissue. The delivery connection portion 511 is disengaged from the connection thread 1110 of the anchor device, and the delivery connection member 5 is rotated in the second predetermined direction by the driving rod 4 to disengage the delivery connection member from the anchor device. The first predetermined direction is opposite to the second predetermined direction, for example, the second predetermined manner is a counterclockwise direction in a state that the first predetermined direction is a clockwise direction.

In some embodiments, an anchor delivery device 2000 includes a delivery tube body 7 housing a drive rod 4 and an anchor holder 6 coupled to the delivery tube body 7, as shown in fig. 17, the anchor holder 6 including a proximal connection port 61 at a proximal end thereof and a distal connection port 62 at a distal end thereof. The conveying connecting piece 5 is connected with the anchor seat fixer through the near-end connecting port, and the anchor device is detachably clamped and connected with the anchor seat fixer through the far-end connecting port 62; the far end of the conveying pipe body 7 is fixedly connected with the near end of the anchor seat fixer 6.

In particular, as shown in fig. 18, the proximal connection port 61 is adapted in diameter to the delivery link 5, which is rotatably movable within the anchor holder (i.e., within the proximal connection port 61). When the delivery connection portion 511 of the delivery connection member 5 is rotatably connected to the connection thread of the anchor device through the proximal opening 61, a rigid connection between the delivery connection member 5 and the anchor device is achieved.

In some embodiments, the anchor holder 6 defines a distal connection port 62 adapted to receive the anchor device, and in particular, in some embodiments, the distal connection port 62 is configured to connect to an anchor seat of an anchor device, illustratively, in a state where an end surface of the anchor seat of the anchor device is rounded, the distal end connection port 62 of the anchor holder 6 is a circular cavity adapted to the anchor holder, and in a state where the anchor holder of the anchor device is a polygonal cylinder, the distal end connection port 62 of the anchor holder 6 is set to be a polygonal cavity, to facilitate insertion of the anchor block of the anchor device into the anchor block anchor 6, for example when the anchor device is of the configuration shown in figure 6, the end face of the connector is hexagonal, the distal connection port 62 has the structure shown in fig. 17, the anchor seat of the anchor device is inserted into the distal connection port 62 of the anchor seat holder 6. For example, when the anchor device is configured as shown in fig. 7 with the end face of the connector being a profiled structure, the distal connection port 62 is configured as shown in fig. 19, and the anchor seat of the anchor device is inserted into the distal connection port 62 of the anchor holder 6. The distal connection port 62 is intended to fit the anchor socket of the anchor device such that the anchor socket of the anchor device is received within the anchor socket fixture.

It is to be noted that irregular figures or profiles may be understood as circles or other figures other than shapes close to circles. Only need guarantee the anchor socket with the anchor socket fixer can realize spacing purpose each other can. That is, in the process of anchoring or rotating the nail body 12, the anchor bed is subjected to rotation stopping treatment through the irregular figure or the irregular structure in the state of adopting the irregular figure or the irregular shaped anchor bed, so that the circumferential position of the anchor bed is limited.

In some embodiments, an anchor feeder 2000 further comprises a feeding tube body 7 housing a driving rod, the distal end of the feeding tube body 7 being fixedly connected to the proximal end of the anchor holder anchor 6 of the anchor feeder. When the anchor device reaches the target tissue, the delivery tube 7 drives the anchor holder 6 to rotate (for example, the delivery tube 7 drives the anchor holder 6 to rotate clockwise). By driving the rotary anchoring device in the anchor holder 6, the spike tip of the anchoring device in the rotary state penetrates into the target tissue and is fixed at the target tissue.

EXAMPLE III

An embodiment of the present invention provides an anchor feeder comprising: the transmission tube body and the handle component are arranged at the near end of the transmission tube body, and the transmission tube body is provided with a through cavity for the rivet conveyor device to pass through. As shown in fig. 20 and 21, the transfer tube 8 is provided with a through cavity for the passage of said anchoring means.

To facilitate operator transport of the anchor device through the anchor transport 2000, the anchor transport 2000 also includes a handle assembly 9 for manipulation. The proximal end of the delivery tube 8 is provided with the handle assembly.

In some embodiments, the anchor feeder 2000 is movable in the transmission tube 8, and further, the driving rod of the anchor feeder 2000 is disposed in the through cavity in the transmission tube 8 and extends out of the transmission tube, and the driving rod outside the transmission tube 8 can be used to form the operation portion of the transmission device. The transfer pipe body 8 may be formed by an adjustable elbow.

The working principle of the anchor conveyer is as follows:

the delivery tube 8, with the anchor device 1000 and anchor delivery device 2000 carried therein, is transvascularly advanced into a target area (e.g., heart tissue), and rotational force is applied by the handle assembly 9 to cause the handle assembly to displace the delivery tube 8 proximally, during which displacement of the delivery tube 8 the anchor device 1000 extends out of the delivery tube 8 until the anchor device 1000 is fully exposed (see fig. 22).

As shown in fig. 23, a rotational force is applied by the handle assembly 9 in a forward direction such that the handle assembly 9 rotates the driver rod clockwise, and the rotational force is then transmitted to the anchor device via the anchor holder 6 such that the spike of the anchor device pierces the target tissue in the body and is fixed.

As shown in fig. 24, the handle assembly 9 applies a reverse rotational force to rotate the driving rod counterclockwise, so that the delivering connector and the anchor device rotate relatively, and when the thread structure of the delivering connector is completely disengaged, the anchor device is separated from the delivering connector to realize the anchor releasing process.

In the operation process, before the anchoring device is released, the anchoring device is fixedly connected with the anchor seat fixer and is arranged in the conveying pipe body to be matched with the conveying of the conveying pipe body. When the releasing is carried out, the external acting force is required to be applied to the anchor device for releasing, the anchor device is prevented from falling off unintentionally, the anchor device is ensured to be in a controllable state all the time, the risk of the operation is reduced, and the safety of the operation is improved.

In the above embodiment, the anchoring device is located inside the delivery tube until the anchoring device reaches the target area, and the human tissue and the anchor feeder and the anchoring device are protected by the delivery tube, so that the human tissue is prevented from being punctured or scratched by the tip of the anchoring device. After the anchor device reaches the target area, the driving rod applies reverse rotating force to the first fixed anchor to separate the anchor device from the anchor conveyor, the auxiliary of an adjustable bent outer sheath tube is not needed, the participation of other auxiliary appliances in the operation process is reduced, and the operation space, time and the consumption of equipment in the operation process are saved.

In some embodiments, the transmission pipe body 8 may be formed by a multi-section tuning bend or a protective sheath, schematically, as shown in fig. 25, the transmission pipe body 8 includes: a first tube 81, a second tube 82, the second tube 82 is sleeved on the first tube 81 to form a through cavity for accommodating the anchoring device 1000 and the anchoring feeder 2000; the first and second tubes 81 and 82 may be made of a hard biocompatible metal or non-metal material. The transfer pipe 8 may also be formed as a one-piece elbow or a protective sleeve, which is not limited herein.

In some embodiments, the end of the transmission tube 8 where the anchor device is arranged is provided with a wire notch, and further, for example, the second tube 82 is provided with a wire notch 321 matching the wire notch 131. The wire leading notch 321 and the wire leading notch 131 are correspondingly arranged, and the wire leading notch 321 can enable the locking wires among the plurality of anchoring bolts to keep orderly and controllable in the human tissue and conveying system, so that the winding out of control is avoided.

It should be noted that the above description does not limit the invention to the scope of the illustrated embodiments. It will be understood by those skilled in the art that various modifications and changes in form and detail may be made in the various structures based on the principles of the present device, or in combination with other structures to carry out the functions of the device and operations described above, without departing from such principles. For example, the adjustable shunt device may further comprise a self-locking device or the like. Such variations are within the scope of the invention.

In conclusion, the anchor transporter of the invention solves the problems of fixing and releasing of instruments of transcatheter interventional annuloplasty in vivo, and provides technical possibility for perfect transcatheter interventional annuloplasty.

It is to be noted that the above-described embodiments are merely examples, and the present invention is not limited to such examples, but may be variously modified.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. An anchor device, comprising: the nail body, the thread guide which is sleeved on the nail body and can rotate relative to the nail body, and the anchor seat which is connected to the nail body and can drive the nail body to rotate; the anchor seat is provided with a connecting thread for connecting with the anchor conveyor.

2. The anchor device as claimed in claim 1, wherein the anchor block has a first receiving cavity axially and distally open from a proximal end thereof and the connecting thread is disposed in the first receiving cavity, and a second receiving cavity axially and proximally open from a distal end thereof for fixing the shank.

3. An anchor device according to claim 1, wherein said anchor base is any one of a cylinder, a polygonal post or a shaped post.

4. The anchor device of claim 1, wherein the thread guide is a ring-shaped thread guide post with a thread guide hole, or the thread guide is a ring body with a thread guide hole.

5. An anchor feeder, comprising: the actuating lever, connect the actuating lever and in rotatable transport connecting piece under the actuating lever drives, transport connecting piece is equipped with and is used for dismantling the transport connecting portion of threaded connection with the anchor nail device.

6. The anchor transportation device of claim 5, wherein the proximal end of the transportation connector is provided with a connection slot for connection to the drive rod, and the distal end of the transportation connector is provided with the transportation connection portion for connection to an anchor device.

7. The anchor feeder of claim 5, including a feeder tube housing the drive rod and an anchor mount anchor connected to the feeder tube; the anchor holder fixer comprises a near-end connecting port positioned at the near end of the anchor holder fixer and a far-end connecting port positioned at the far end of the anchor holder fixer, the diameter of the near-end connecting port is matched with that of the conveying connecting piece, and the far-end connecting port is matched with the anchor holder of the anchor device; the far end of the conveying pipe body is fixedly connected with the near end of the anchor seat fixer.

8. The anchor feeder of any one of claims 5 to 7, comprising

The transmission tube body and the handle assembly arranged at the near end of the transmission tube body are provided with a through cavity for the rivet device to pass through.

9. The anchor feeder of claim 8, wherein the transfer tube comprises:

a first pipe body;

the second pipe body is sleeved on the first pipe body to form the through cavity.

10. The anchor feeder of claim 9 wherein the transfer tube body is provided with a wire notch.

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