CN218045225U - Anchor device and anchor conveyor - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, concretely relates to anchor nail device and anchor nail conveyer. The anchoring device is characterized by comprising a nail body and an anchor seat which is connected to the nail body and can drive the nail body to rotate; the wire leading device is arranged on the nail body or the anchor seat and can rotate relative to the nail body, and the anchor seat is provided with an anchor seat connecting piece which is detachably connected with the anchor conveyor.

Description

Anchor device and anchor conveyor

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to anchor nail device and anchor nail conveyer.

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). Causing blood to flow back from the right ventricle to the right atrium increases the volume and pressure of the right atrium and right ventricle, and more likely the central vein if severe enough. 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 defect of the valve 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 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 mitral 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; the risk of intimal inflammation and thromboembolism of the artificial valve exists forever; the death rate is 2-8%. The operation time of the repair operation is long; difficult to teach and learn; the annual failure rate is 1-3%.

Treatment of tricuspid valve insufficiency or tricuspid regurgitation, mitral valve insufficiency or mitral valve regurgitation is currently under vigorous development in the form of transcatheter intervention, 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 the replacement through catheter intervention, but the essence of the replacement still replaces the functions of the human body, and the complications frequently appear along with the increase of time, so that the replacement 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.

SUMMERY OF THE UTILITY MODEL

To prior art's defect, the utility model provides an improve anchor nail device and anchor nail conveyer of anchor nail release convenience. Specifically, the method comprises the following steps:

in one aspect, the utility model provides an anchor device, wherein, include: the anchor block is connected to the nail body and can drive the nail body to rotate; the wire leading device is arranged on the nail body or the anchor seat and can rotate relative to the nail body, and the anchor seat is provided with an anchor seat connecting piece which is detachably connected with the anchor nail conveyor.

Preferably, an anchor device as described above, wherein includes:

the wire leading device is an annular wire leading cylinder provided with a wire leading hole, and the annular wire leading cylinder is sleeved on the near end of the nail body or the anchor seat; or,

the wire leading device is a ring body, the ring body is movably arranged on the end part of the anchor base, and the end part faces the nail body.

Preferably, an anchor device as described above, wherein includes: the nail body comprises an anchor body which is any one of a spiral anchor, a conical anchor, a hook-shaped anchor and a claw-shaped anchor.

On the other hand, the utility model provides an anchor nail conveyer, wherein, including the actuating rod body, the suit in the actuating rod body and in the actuating rod body drives rotatable transport casing down, it is equipped with and can dismantle the transport connecting portion of being connected for with the anchor nail device to carry the casing.

Preferably, the above-mentioned anchor conveyor further comprises an anchor device, the anchor device is provided with an anchor seat buckle for detachably connecting with the anchor conveyor, the conveying connecting part is a conveying clamping groove adapted to the anchor seat buckle, or,

the anchor device is provided with an anchor seat clamping groove used for being detachably connected with the anchor conveyor, and the conveying connecting part is a conveying buckle matched with the anchor seat clamping groove.

Preferably, in the above-mentioned anchor bolt conveyor, the anchor seat slot or the conveying slot includes a first track through slot, a second track through slot parallel to the first track through slot, and a third track through slot communicating the first track through slot with the second track through slot, and an opening end of the first track through slot forms an opening of the anchor seat slot or the conveying slot.

Preferably, the above-mentioned anchor transportation device further includes an abutting member abutting between the driving rod body and the anchor device.

Preferably, the anchor feeder comprises a driving fixer, the driving fixer is sleeved at the distal end of the driving rod body, and the distal end of the driving fixer is fixedly inserted into the feeding housing.

Preferably, the above-mentioned anchor conveyor includes a butt-connecting member, one end of the butt-connecting member is fixedly sleeved on the distal end of the driving fixer, and the other end of the butt-connecting member abuts against the anchor device.

Preferably, the above-mentioned anchor conveyor, wherein a stopper is provided on the driving fixer.

Preferably, the anchor feeder includes a feeding tube, the feeding tube includes an adjustable tube and a through tube fixedly connected to the adjustable tube, the adjustable tube combines with the through tube to form a containing cavity for containing the driving rod, the feeding shell and the anchor device, and the driving rod, the feeding shell and the anchor device are movable in the containing cavity.

Preferably, in the above-mentioned anchor conveyor, the through pipe is provided with a wire guiding opening adapted to the anchor device.

Compared with the prior art, the beneficial effect of this application lies in:

1. the utility model discloses anchor socket of anchor nail device is equipped with and is used for dismantling the anchor socket connecting piece of being connected with anchor nail conveyer, has consequently improved anchor nail device and anchor nail conveyer's installation and the convenience of anchor nail device release. Furthermore, the utility model discloses an anchor nail device have can for the rotatory thread guide of nail body, consequently reduced the risk that the lead wire twines and interferes.

2. The utility model discloses anchor nail conveyer's transport casing is equipped with and is used for dismantling the transport connecting portion of being connected with anchor nail device, has consequently improved anchor nail device and anchor nail conveyer's installation and anchor nail device release's convenience.

Drawings

Fig. 1 is a schematic cross-sectional structural view of an anchor device according to an embodiment of the present invention;

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

fig. 3 is a schematic structural view of a wire guide in an anchor device according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of an anchor device according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an anchor body in the anchor device according to an embodiment of the present invention;

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

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

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

fig. 9 is a cross-sectional view of a delivery housing in an anchor feeder according to one embodiment of the present invention;

fig. 10 is a schematic view of a feed housing of an anchor feeder according to an embodiment of the present invention;

fig. 11 is a schematic view of a track slot in an anchor feeder according to an embodiment of the present invention;

fig. 12 is a schematic view of an anchor feeder according to an embodiment of the present invention;

fig. 13 is a schematic structural view of an anchor conveyor according to an embodiment of the present invention;

fig. 14 is a schematic structural view of an anchor conveyor according to an embodiment of the present invention;

fig. 15 is a schematic structural view of an anchor conveyor according to an embodiment of the present invention;

fig. 16 is a schematic structural view of an anchor conveyor according to an embodiment of the present invention;

fig. 17 is a schematic structural view of a conveying pipe body according to an embodiment of the present invention;

fig. 18 is a schematic structural view of a conveying pipe body according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of a conveying system according to an embodiment of the present invention;

fig. 20 is a schematic diagram of the movement of the conveying system according to an embodiment of the present invention;

fig. 21 is a schematic diagram of the movement of a conveying system according to an embodiment of the present invention;

fig. 22 is a schematic diagram of the movement of the conveying system according to an embodiment of the present invention;

fig. 23 is a schematic diagram of the movement of the conveying system according to an embodiment of the present invention.

Detailed Description

The following description, with reference to the accompanying drawings, is provided for the purpose of providing a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. These embodiments include various specific details for ease of understanding, but these are to be considered exemplary only. Accordingly, those skilled in the art will appreciate that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention. In addition, for the purpose of brief and clear description of the present invention, descriptions of well-known functions and constructions will be omitted.

The terms and phrases used in the following specification and claims are not limited to the literal meaning but, rather, are used merely to enable a clear and consistent understanding of the invention. Accordingly, it will be appreciated by those skilled in the art that the descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in some embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 order to facilitate understanding of the embodiments of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiment of the utility model provides an in the near-end be for being close to operator's one end, the one end of distal end for keeping away from the operator. The target location, target area or target tissue in the embodiments may be understood to have the same meaning, e.g. in an annulus reduction procedure, the target location may be understood as any location on the annulus tissue, the target area may also be understood as any area in the annulus tissue, and the target tissue may be understood as the annulus tissue.

Example one

Fig. 1 is an exemplary block diagram of an anchor device provided in accordance with some embodiments of the present disclosure. In some embodiments, an anchor device, comprising: the nail body 1 and the anchor seat 2 are connected on the nail body 1 and can drive the nail body 1 to rotate; the wire leading device 3 is arranged on the nail body 1 or the anchor seat 2 and can rotate relative to the nail body 1, and the anchor seat 2 is provided with an anchor seat connecting piece 21 which is used for being detachably connected with the anchor nail conveyor.

Schematically, as shown in fig. 1, a connecting hole 22 adapted to the nail body 1 is formed in the anchor base 2, the connecting hole 22 may be a through hole or a blind hole, and the nail body 1 is inserted into the connecting hole 22 to realize static connection between the anchor base 2 and the nail body 1.

When the anchor device is used, a flexible linear object penetrates through the thread guide 3, a first anchor device carries the flexible linear object and is driven by the conveyor to reach a target position or a target area, an acting force is applied to the anchor conveyor, the nail body 1 enters the target position or the target area under the action of the acting force and is firmly gripped and fixed, after one anchor device is fixed, the next anchor device penetrated with the flexible linear object is continuously conveyed until the conveying of the anchor device is completed, after the conveying of the anchor device is completed, the flexible linear object is tightened, the target tissue is reduced through the pulling force of the flexible linear object, the proximal end of the flexible linear object is locked when the target tissue is reduced to a desired state, for example, a column capable of being clamped is arranged at the distal end of the flexible linear object, and the column is clamped under the state that the flexible linear object needs to be fixed, so that a part of the flexible linear object penetrating into the column is statically connected with the column.

The annular ring repairing method comprises the steps of fixing a plurality of anchor devices penetrating the same flexible linear object at a target position or in a target area, tightening the flexible linear object to enable the flexible linear object to drive the target position or the target area to move, and locking the flexible linear object when target tissues are adjusted to the expected position to achieve the annular ring repairing purpose.

In some embodiments, the wire guide 3 is a ring-shaped wire guide cylinder with a wire guide hole 31, and the ring-shaped wire guide cylinder is sleeved on the proximal end of the nail body 1 or on the anchor base 2 and is arranged adjacent to the anchor base connecting piece 21; schematically, in some embodiments, as shown in fig. 2, the wire guider 3 is a ring-shaped wire guiding cylinder with a wire guiding hole 31, and the ring-shaped wire guiding cylinder is sleeved on the proximal end of the nail body 1. In some embodiments, the wire guide 3 is a ring-shaped wire guide cylinder with a wire guide hole 31, and the ring-shaped wire guide cylinder is sleeved on the anchor base 2, and further, the ring-shaped wire guide cylinder can be located on the proximal end of the anchor base 2 or on the distal end of the anchor base 2.

It should be noted that the wire guide 3 may also be located in other components, and is intended to make the annular wire guiding column axially rotate with respect to the fixed end of the anchor base 2 or the nail body 1, that is, after the flexible linear object passes through the wire guiding hole 31 of the wire guide 3, a force is applied to the flexible linear object, and the force can be transmitted to the anchoring device to drive the anchoring device to displace.

In some embodiments, the wire guide may be a ring body, and the ring body is movably disposed on the anchor base and faces the anchor device. Schematically, as shown in fig. 3, the ring body 3 is disposed on an end portion of the anchor base 2, and the end portion faces the nail body, specifically, the ring body includes a connection end 32 and the ring body, the connection end 32 is movably disposed on an end surface of the anchor base 2 facing the anchor device, the ring body 3 moves with the connection end 32 as a fulcrum, the ring body forms the lead hole 31, the flexible linear object passes through the lead hole 31, and the flexible linear object can slide in the lead hole 31, and pulling the flexible linear object can make the anchor devices approach each other, thereby causing the annulus 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, as shown in fig. 2, the nail body 1 includes an anchor body 11, and the anchor body 11 may be a spiral anchor, and the spiral anchor contacts and pierces 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. Furthermore, the nail body 1 further comprises a beam 12, and the annular lead post (lead device 3) is sleeved on the beam 12 and can axially rotate around the beam 12. Further, the cross beam 12 and the helical anchor may be integrally formed to form the nail body 1.

In some embodiments, as shown in fig. 4, the nail body 1 includes an anchor body 11, the anchor body 11 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 is disposed on the periphery of the conical support pillar in a spiral manner along the conical support pillar with a vertex of the conical support pillar as a starting point. 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 1 includes an anchor body 11, the anchor body 11 may be a hook anchor, the hook anchor may be formed of a memory alloy material, as shown in fig. 5, the hook anchor is linear when not penetrating into the target tissue, and is hook-shaped when contacting the temperature adapted by the memory temperature, as shown in fig. 6, the nail body 1 may include at least one hook anchor, and preferably, the nail body 1 includes two hook anchors, and the tip orientations of the two hook anchors are different.

In some embodiments, the nail body 1 includes an anchor body 11, as shown in fig. 7, the anchor body 11 may be a claw anchor, and the claw anchor may be formed of a memory alloy material, the claw anchor is linear when not penetrating into the target tissue, and the claw anchor is claw-shaped when penetrating into the target tissue and grabs the target tissue.

In some embodiments, other structures and shapes of the nail body 1 can be adopted, and the several structures of the nail body 1 provided by the present disclosure are only used as examples and do not limit the nail body 1 further.

Example two

As shown in fig. 8, the present invention further provides an anchor bolt conveying device, wherein, including the driving rod body 4, the sleeve is installed on the driving rod body 4 and in the driving rod body 4 drives the lower rotatable conveying shell 5, the conveying shell 5 is provided with a conveying connecting portion 511 for detachably connecting with the anchor bolt device.

In the conveying process, the anchor conveyer and the anchor device penetrated with the flexible linear object are fixedly connected through the conveying connecting part 511, when the anchor device is conveyed to a target position, a rotating force is applied to the driving rod body 4, the nail body 1 of the anchor device enters the target position or a target area under the action of the rotating force and is firmly grabbed and fixed, after the anchor device is fixed, an acting force is applied to the driving rod body 4 to separate the anchor device from the conveying shell 5, and the release of the current anchor device is realized. And after one anchor device is fixed, continuously conveying the next anchor device penetrated with the flexible linear object until the anchor device is conveyed completely, tightening the flexible linear object after the anchor device is conveyed completely, reducing the valve ring tissue by the pulling force of the flexible linear object, and fixing the proximal end of the flexible linear object when the target tissue is reduced to a preset state.

In some embodiments, the anchor device is provided with an anchor seat buckle for detachably connecting with the anchor feeder, and the delivery connection portion 511 is a delivery slot adapted to the anchor seat buckle. It should be noted that the anchor catch may be a form of the anchor connection member 21.

Schematically, as shown in fig. 9 to 10, the delivery connection portion 511 is a delivery slot adapted to the anchor holder buckle, the anchor device is provided with the anchor holder buckle for detachably connecting with the anchor conveyor, the anchor conveyor is connected with the anchor device in a state where the anchor holder buckle is located in the delivery slot, and conversely, the anchor conveyor is disconnected from the anchor device in a state where the anchor holder buckle is not located in the delivery slot.

In some embodiments, when the transportation card slot includes two track slots, illustratively, the anchor buckle includes a first connecting protrusion 211 and a second connecting protrusion 212 as shown in fig. 2, the first connecting protrusion 211 is movably disposed in the first track slot, and the second connecting protrusion 212 is movably disposed in the second track slot. The first connection projection 211 and the second connection projection 212 enable the anchor device to be snap-connected to the delivery housing 5 to form a connection or a disconnection between the anchor device and the delivery device.

In some embodiments, when the conveyor slot is provided with only one track groove, the anchor seat buckle is formed by only one connecting protrusion (such as the first connecting protrusion 211 or the second connecting protrusion 212), and one connecting protrusion is detachably arranged in the track groove to realize the connection or the detachment between the anchor device and the conveyor.

The purpose of connecting or disassembling the anchoring device and the conveyor can be achieved by adopting one track groove, or two track grooves, even a plurality of track grooves, and the stability of the two track grooves is superior to that of a single track groove.

It should be noted that the track grooves may be symmetrically or asymmetrically arranged, and the track grooves may be matched with the anchor block fastener, and when the anchor block fastener is mainly asymmetrically arranged by the plurality of connecting protrusions, the plurality of track grooves are asymmetrically arranged. The purpose of the track slot is to enable connection or disconnection between the anchor device and the carrier. Although the present disclosure only illustrates the embodiment with a single track groove and two track grooves, in the actual use process, a plurality of track grooves such as three, four, etc. may be provided.

In some embodiments, as shown in fig. 10, in some embodiments, the track groove includes a first track groove 51111, a second track groove 51112 parallel to the first track groove 51111, and a third track groove 51113 communicating the first track groove 51111 with the second track groove 51112, and an opening end of the first track groove 51111 forms an opening of the track groove. The first, second and third track through grooves 51111, 51112 and 51113 form a "J" shape.

During the transportation process of the anchor device, the first connecting protrusion 211 is located at the initial section (also understood as a closed section) of the first trajectory through groove 51111. And under the state that the anchoring device is positioned at the target position, the anchoring device rotates under the state that the external force in the rotating direction is applied, and the anchoring device in the rotating state pierces the myocardial tissue by means of the external force until the anchoring device stops applying the force in the rotating direction when the anchoring device is fixed. The axial force, the rotational force, and the axial force are sequentially applied to the conveying shell 5 to move the catch along the second tracking through groove 51112 → the third tracking through groove 51113 → the first tracking through groove 51111 until the catch is disengaged from the conveying shell 5.

In some embodiments, as shown in fig. 11, the track groove includes a first track through groove 51111, a second track through groove 51112 parallel to the first track through groove 51111, a third track through groove 51113 communicating a proximal end of the first track through groove 51111 and a proximal end of the second track through groove 51112, respectively, and a fourth track through groove 51114 connecting a distal end of the second track through groove 51112 and parallel to the third track through groove 51113, where a closed end of the fourth track through groove 51114 forms a closed opening of the track groove, and an open end of the first track through groove 51111 forms an opening of the predetermined track.

During transportation, when the anchor device buckle is located in the fourth tracking through groove 51114, and the anchor device reaches the target position, a rotational force, an axial force, a rotational force, and an axial force are sequentially applied to the delivery housing 5, such that the buckle moves along the fourth tracking through groove 51114 → the second tracking through groove 51112 → the third tracking through groove 51113 → the first tracking through groove 51111 until the buckle disengages from the delivery housing 5.

In some embodiments, the anchor device is provided with an anchor seat clamping groove for detachably connecting with the anchor conveyor, and the conveying connecting part is a conveying buckle matched with the anchor seat clamping groove. The conveying buckle is connected with the anchor seat clamping groove to realize the dismounting connection between the anchor conveyor and the anchor device, the working principle of the conveying buckle is the same as the matching mode of the anchor seat buckle and the conveying clamping groove, and the details are not repeated here.

In addition, the anchor seat connecting piece in the first embodiment can be an anchor seat buckle or an anchor seat clamping groove. The purpose of the anchor seat connection is to achieve a connection between the anchor device and the anchor feeder.

In some embodiments, as shown in fig. 12, an anchor feeder further includes a connecting piece 6 abutting between the driving rod 4 and the anchor device, in some embodiments, the connecting piece 6 is disposed in an inner cavity of the feeding shell 5, and the connecting piece 6 is disposed between the driving rod 4 and the anchor device in a state that one end of the feeding shell 5 is fixedly disposed with the driving rod 4 and the other end is detachably disposed with the anchor device. The abutting-connecting piece 6 respectively applies pressure to the driving rod body 4 and the anchoring device so as to ensure stable connection between the anchoring device and the conveying shell 5.

In some embodiments, the connecting member 6 may be formed by an elastic member (e.g. a spring) which is acted on by an external force at both ends, and when the external force is larger than the pushing force applied by the elastic member to the anchoring device and the driving rod 4, the elastic member makes a contraction motion in the conveying shell 5.

Example four

In a common embodiment, the anchor device is provided with an anchor seat clamping groove used for being detachably connected with the anchor conveyor, and the conveying connecting part is a conveying buckle. The anchor seat clamping groove is matched with the conveying buckle to achieve the purpose of disassembling the anchor seat device from the conveyor. The working principle is the same as that of the third embodiment, and the obtained effect is the same, which is not described herein.

EXAMPLE five

In some embodiments, as shown in fig. 13, the anchor feeder comprises a driving anchor 7, the driving anchor 7 is sleeved on the distal end of the driving rod body 4, and the distal end of the driving anchor 7 is fixedly inserted into the feeding shell 5.

In some embodiments, the delivery housing 5 is a straight tubular body with two open ends, and the driving anchor 7 is disposed at one end of the delivery housing 5 to close one opening of the delivery housing 5, wherein the other end of the delivery housing 5 is open for detachable connection with the anchor device.

In some embodiments, the driving holder 7 is a cylinder and is provided with a through hole for accommodating the driving rod 4, and in order to avoid the relative movement between the driving rod 4 and the driving holder 7, as shown in fig. 13, a stop protrusion may be sleeved on the proximal end of the driving rod 4, or as shown in fig. 14, the stop protrusion 71 is provided on the driving holder 7, and the stop protrusion is intended to limit the relative movement between the driving rod 4 and the driving holder 7, or may be understood as limiting the independent stroke of the driving rod 4 (the independent stroke may be understood as the stroke of independent displacement or movement), wherein the independent stroke of the driving rod 4 is fixed (it may also be understood that the stroke of the driving rod 4 is in a controllable state), and the driving rod 4 can stably transmit the acting force to the driving holder 7.

As shown in fig. 15, in some embodiments, the driving anchor 7 is a cylinder and is provided with a blind hole for accommodating the driving rod 4, and the independent stroke (independent stroke may be understood as the stroke of independent displacement or movement) of the driving rod 4 is fixed (it may also be understood that the stroke of the driving rod 4 is in a controllable state), so that the driving rod 4 can stably transmit the acting force to the driving anchor 7.

It should be noted that the drive holder 7 may be provided with a stop projection 71 in a state where a blind hole is formed. And is not particularly limited herein.

In the state where no driving anchor 7 is provided, the diameter of the driving rod 4 is adapted to the inner diameter of the conveying shell 5 so that the driving rod 4 and the conveying shell 5 are both in close contact and relatively stationary, it being understood that both the driving rod 4 and the conveying shell 5 are only in a static friction state.

In the state of being provided with the driving retainer 7, the driving rod 4 can be set to be a small diameter rod, i.e. the diameter of the driving rod 4 is much smaller than the inner diameter of the conveying shell 5, and the diameter of the driving retainer 7 is adapted to the inner diameter of the conveying shell 5, i.e. the driving retainer 7 and the conveying shell 5 are in close contact and relatively static. The distal end of the driving rod body 4 is inserted into the driving holder 7, i.e. the diameter of the driving rod is adapted to the inner diameter of the driving holder 7. The driving holder 7 is in close contact with the driving rod body 4 and is relatively static. With this arrangement, the force of the drive rod 4 can be transmitted to the feed housing 5. Because the diameter of the driving rod body 4 is far less than the inner diameter of the conveying shell body 5, the flexibility of the driving rod body 4 is greatly improved, the flexibility of the conveying pipe body outside can be adjusted through the driving rod body 4 with a small diameter, and particularly, under the condition of passing through complex tissues in vivo, the driving rod body 4 with the small diameter can adaptively adjust the state of the driving rod body 4 so as to adapt to the complex tissues until the anchor device is conveyed to a target position.

In some embodiments, the anchor delivery device further comprises a fixing sleeve at one end of the abutting member, which is fixed to the distal end of the driving fixer, and the other end of the abutting member abuts against the anchor device. With the drive in the secured state, the abutment member exerts a pressure on the anchor device to secure a stable connection between the anchor device and the delivery housing 5.

In some embodiments, a stopper 72 is disposed on the driving holder 7, and the stopper 72 is fixedly sleeved on the driving holder 7 and connected to the driving housing. Illustratively, the driving holder 7 is disposed on a stopper 72, and in a state where the driving holder 7 is inserted into the conveying housing 5, the stopper 72 is disposed adjacent to the opening of the conveying housing 5. The relative displacement between the delivery casing 5 and the drive holder 7 is limited by a stopper 72. Illustratively, the stopper 72 may be an annular protrusion, the annular protrusion is disposed on the driving holder 7 and adjacent to the proximal end of the conveying shell 5, the driving rod 4 receives an acting force towards the conveying shell 5, the driving rod 4 transmits the acting force to the driving holder 7, and the driving holder 7 is provided with the limiting annular protrusion, which limits the independent displacement of the driving holder 7, so that the driving holder 7 transmits the acting force to the conveying shell 5.

EXAMPLE six

The utility model provides an anchor conveyer again, schematically, wherein as shown in fig. 17-18, including a conveying pipe body, conveying pipe body is including transfer pipe 81, fixed connection in transfer pipe 81 link up pipe 82, transfer pipe 81 combines it forms one and is used for holding the drive rod body, carries the cavity that holds of casing, anchor device to run through pipe 82, it can for to run through pipe 82 carry casing, anchor device to move.

The conveying pipe body is internally provided with a driving rod body, a conveying shell body and an anchoring device which enter target tissues of a human body, the conveying shell body and/or the anchoring device can move relative to the conveying pipe body in the conveying pipe body, the driving rod body 4 is arranged in the adjusting pipe 81, and the conveying shell body and the driving rod body are positioned in the through pipe 82. The driving rod 4 is a flexible driving body, and the state of the flexible driving body is adaptively adjusted under the driving of the bend adjusting pipe 81 so as to adapt to the bend adjusting pipe 81.

In this application, dispose in the conveying pipe body and transfer the return bend 81, get into the target tissue at the flexible actuating rod body cooperation transfer return bend 81, need not dispose outside supplementary curved structure of transferring (for example realize transferring curved through the curved sheath pipe of adjustable) and can realize transferring curved purpose. In such an embodiment, the sheath adjusting aid of the conventional access surgery is omitted, and the surgery space (e.g., the occupied space of the sheath adjusting device) and the surgery cost (e.g., the cost of the sheath adjusting device) are saved.

In some embodiments, the through tube 82 is opened with a wire guiding opening 820 adapted to the anchoring device, the wire guiding opening is matched with the wire guiding hole 31 of the anchoring device, and the flexible wire-like substance is prevented from being entangled with the nail body 1 of the anchoring device by the arrangement of the wire guiding opening 820, thereby reducing the complexity of the operation.

It should be noted that the tuning pipe 81 and the through pipe 82 may be made of hard metal or non-metal material that is biocompatible. The transfer tube may also be formed as a one-piece elbow 81 or as a protective sleeve.

To cite one embodiment, as shown in fig. 19, an anchor transporter includes: the device comprises an anchor device, a conveyor detachably connected with the anchor device, and a conveying pipe body which contains the anchor device and the anchor conveyor and can drive the anchor device and the anchor conveyor to move.

The anchoring device 1000 may be the anchoring device structure of the above-described embodiment, or may be other types of anchoring device structures. The technical purpose of the present application can be achieved by an assembly that is fixed to a target group location or target area.

A conveyor 2000 movably connected to the anchoring device; in some embodiments, the anchoring device may be the feeder structure of the above embodiments, or may be other forms of feeder structures.

The feeding tube 3000 is provided with a cavity for accommodating the anchor feeder and the anchor device. In some embodiments, the anchor feeder 2000 is movable in the conveying tube 3000, and further, the driving rod 4 of the anchor feeder 2000 is disposed in the cavity of the conveying tube 3000 and extends out of the conveying tube, and the driving rod 4 outside the conveying tube 3000 can be used for connecting with an operation portion.

The working principle of the anchor conveyer is as follows:

the delivery tube 3000 carrying the anchor device 1000 and the delivery device 2000 therein is transvascularly advanced into a target area (e.g., heart tissue), as shown in fig. 20, and an axial pushing force is applied to the driving rod of the delivery device 2000 to displace the delivery device 2000 relative to the delivery tube 3000, wherein the anchor device 1000 extends out of the delivery tube 3000 during displacement of the anchor delivery device 2000 until the anchor device 1000 is fully exposed. A first rotational driving force is applied to the driving rod 4 (the rotational direction of the first rotational driving force matches the screw direction of the anchor device) so that the anchor device 1000 is rotated, and the anchor device 1000 penetrates into a target tissue in a human body and is fixed. The driving rod is continuously pushed, two ends of the connecting piece 6 are in a pressed state, the connecting piece 6 moves along the axial direction and works in a contracted state, a second rotary driving force (the rotary direction of the first rotary driving force is opposite to the spiral direction of the anchor device) is continuously applied to the driving rod, the anchor device 1000 is separated from the conveyor 2000, and the anchor releasing process is achieved.

Specifically, after the to-be-anchored device is fixed, as shown in fig. 21, an axial force is continuously applied to the conveying housing 5 and the anchoring device 1000 of the conveyor 2000, the two ends of the abutting-connecting member 6 are stressed to be in a contracted state, under the action of the axial force (overcoming the resistance of the abutting-connecting member 6), the first connecting protrusion 211 is caused to take the initial section of the second track through groove 51112 as a displacement starting point, and to be positioned toward the third track through groove 51113 along the second track through groove 51112 until the first connecting protrusion 211 cannot be driven to displace by the axial force in the first axial direction, as shown in fig. 22, a rotational force is continuously applied to the conveying housing 5 to cause the conveying housing 5 to rotate, and correspondingly, the first connecting protrusion 211 is caused to be displaced toward the first track through groove 51111 along the third track through groove until the rotational force in the rotational direction cannot drive the first connecting protrusion 211 to displace, as shown in fig. 23, the first connecting protrusion 211 is caused to be disengaged from the conveying housing 211 at the opening of the first track through groove 51111. During operation, the anchoring device can be stably and firmly arranged in the delivery tube body before being released, and the anchoring device is matched with the delivery tube body for transmission. When the releasing is carried out, the external acting force is required to be applied to the releasing, the anchor device is prevented from falling off unintentionally, the anchor device is guaranteed 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 delivery tube protects the human tissue and the transporter and the anchoring device, thereby preventing the human tissue from being punctured or scratched by the tip of the anchoring device. After the anchor device reaches the target area, the driving rod body 4 is pressed to expose the anchor device, and the pressure is continuously applied to separate the anchor device from the conveyor or the conveying pipe body, so that the auxiliary of an adjustable bent outer sheath pipe is not needed, the participation of other auxiliary appliances in the operation process is reduced, and the operation space, time and equipment consumption in the operation process are saved.

In some embodiments, the delivery tube body 3000 may be formed by a multi-section elbow 81 or a protective sheath, illustratively, the delivery tube body 3000 includes: a first tube, a second tube, the second tube connecting said first tube to form a through passage of the conveyor 2000 based on the anchor device 1000; the first tube and the second tube may be made of hard biocompatible metal or non-metal material. The conveying pipe 3000 may also be formed by a one-step adjustable pipe 81 or a protective sleeve, which is not limited herein.

It should be noted that the above description of the adjustable shunt device is merely for convenience of description and should not limit the present 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 or detail may be made in the various structures described or forming sub-structures in combination with other structures to carry out the functions of the apparatus and operations described above without departing from the principles of the present apparatus. For example, the adjustable shunt device may further comprise a self-locking device or the like. Such modifications are within the scope of the present invention.

To sum up, the utility model discloses a transmission system based on anchor nail device has solved the instrument of the valve ring repair art of interveneeing through the pipe and has fixed and the release problem in vivo, intervenes the valve ring repair operation for perfect pipe and provides technical possibility.

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

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 a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above disclosure of the preferred embodiments is not intended to limit the scope of the present invention, and all or part of the structure of the embodiments may be understood by those skilled in the art and the equivalents thereof may be made by those skilled in the art without departing from the scope of the present invention.

Claims (12)

1. An anchor device, comprising: the anchor rod comprises a nail body, an anchor seat which is connected to the nail body and can drive the nail body to rotate, and a wire leading device which is arranged on the nail body or the anchor seat and can rotate relative to the nail body, wherein the anchor seat is provided with an anchor seat connecting piece which is detachably connected with an anchor rod conveyor.

2. The anchor device of claim 1, comprising:

the wire leading device is an annular wire leading cylinder provided with a wire leading hole, and the annular wire leading cylinder is sleeved on the near end of the nail body or the anchor seat; or,

the wire leading device is a ring body, the ring body is movably arranged on the end part of the anchor seat, and the end part faces the nail body.

3. An anchor device according to claim 1, comprising: the nail body comprises an anchor body, and the anchor body is any one of a spiral anchor, a conical anchor, a hook-shaped anchor and a claw-shaped anchor.

4. An anchor feeder comprising a driving rod, a feeding housing rotatably fitted around the driving rod and driven by the driving rod, the feeding housing being provided with a feeding connecting portion for detachable connection to an anchor seat connecting member of an anchor device according to any one of claims 1 to 3.

5. The anchor feeder of claim 4, comprising an anchor device provided with an anchor block catch for detachable connection to the anchor feeder, the delivery connection portion being a delivery slot adapted to the anchor block catch, or,

the anchor device is provided with an anchor seat clamping groove used for being detachably connected with the anchor conveyor, and the conveying connecting part is a conveying buckle matched with the anchor seat clamping groove.

6. The anchor carrier of claim 5, wherein said anchor block slot or said feeder slot comprises a first trajectory channel, a second trajectory channel parallel to said first trajectory channel, and a third trajectory channel communicating said first trajectory channel with said second trajectory channel, an opening end of said first trajectory channel forming an opening of said anchor block slot or said feeder slot.

7. An anchor feeder according to claim 5, including an abutment member abutting between the drive rod body and the anchor device.

8. The anchor delivery system of claim 4, wherein the anchor delivery system includes a drive anchor, the drive anchor being mounted around a distal end of the drive rod body, the distal end of the drive anchor being fixedly inserted into the delivery housing.

9. The anchor feeder of claim 8, including an abutment member having one end fixedly secured to the distal end of the drive anchor and another end abutting the anchor device.

10. An anchor feeder according to claim 8 or 9, wherein the drive anchor is provided with a stop.

11. The anchor feeder of claim 5, including a feeder tube including an adjustable bend tube and a through tube fixedly connected to the adjustable bend tube, the adjustable bend tube in combination with the through tube forming a receiving cavity for receiving the drive rod, the feeder housing and the anchor device, the drive rod, the feeder housing and the anchor device being movable within the receiving cavity.

12. The anchor feeder of claim 11, wherein the through tube defines a wire guide opening adapted to the anchor device.

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