Anchor release device

Abstract

The application relates to an anchor releasing device, which comprises a rotating part, a dispersing part, releasing pipes and anchors, the rotating part and the dispersing part are attached or have a preset interval, and through holes are arranged on the rotating part and the dispersing part; the releasing pipes are in a straight pipe shape, and the number of the releasing pipes is two or more; the distal end of each releasing pipe is sequentially arranged through the rotating part and the dispersing part, and the aperture of the dispersing part at least on the side close to the distal end of the releasing pipe is larger than the aperture of the rotating part; the anchors to be released are located in the releasing pipes, and the number of the anchors is the same as that of the releasing pipes; the rotating part is rotated, the releasing pipes can gradually disperse from the position of the dispersing part to the distal end or be folded to be parallel to each other, and the anchors can be released from the distal end of the releasing pipes to target tissues. By rotating the rotating part, the anchors can be collectively released to the target tissues in the human body, the operation efficiency is improved, and time is saved; before the anchors are fixed and released, the releasing mode can protect the blood vessels, tissues in the human body and the medical device itself from being damaged by the sharp ends of the spiral anchors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surgical medical instruments, and particularly relates to an anchor releasing device. BACKGROUND

[0002] Heart blood reflux is usually caused by heart valve insufficiency. Heart valve insufficiency includes tricuspid valve insufficiency and mitral valve insufficiency. Tricuspid valve insufficiency: tricuspid valve insufficiency or tricuspid valve reflux (TR) is a structural heart valve disease, in which the tricuspid valve between the right atrium and the right ventricle cannot completely close (systole) when the right ventricle contracts. Blood flows from the right ventricle to the right atrium, which increases the blood volume and pressure of the right atrium and the right ventricle, and if it is severe enough, it can increase the blood volume and pressure of the central vein. The causes are divided into primary and secondary. Primary tricuspid valve insufficiency refers to defects only in the tricuspid valve, such as infective endocarditis; secondary tricuspid valve insufficiency refers to defects in the valve caused by some other pathologies, such as left ventricular failure or pulmonary hypertension. The mechanism is that right ventricular dilation causes the valve base (annulus) to dilate, causing the three valve leaves to be too far apart to contact each other; or one or more of the three valve leaves is abnormal. A small amount of tricuspid valve reflux may not affect the body. However, as the disease becomes more severe, the impact will also increase. Moderate and severe tricuspid valve reflux will change the shape of the heart. This will cause permanent heart damage, leading to heart failure and death (especially in people over 70 years old).

[0003] Mitral regurgitation: Mitral regurgitation or mitral valve regurgitation is a structural heart valve disease, when the heart pumps blood, the mitral valve does not close properly. That is, when the left ventricle contracts, blood flows from the left ventricle through the mitral valve into the left atrium. Mitral regurgitation is the most common form of valvular heart disease. The cause is divided into primary and secondary. Caused by mitral valve problems, called primary mitral regurgitation. Secondary mitral regurgitation is mainly caused by left ventricular dilation, resulting in mitral annulus stretching and papillary muscle displacement. At present, mild mitral and tricuspid regurgitation mainly uses drug treatment. Severe mainly uses replacement and repair, and is mainly surgical. Although it has certain effect in clinic, but still has some limitations. Replacement surgery cuts off the subvalve device, which can cause systolic dysfunction; need anticoagulation; there is always a risk of artificial valve endocarditis and thromboembolism; mortality rate 2%~8%. Repair surgery has a long operation time; difficult to teach and learn; annual failure rate 1%~3%. At present, the interventional treatment form is being vigorously developed, but the product is still immature. Surgical replacement and repair are difficult, have high failure rate, cause great trauma to patients, have long postoperative healing time, and are often accompanied by postoperative complications. The replacement of transcatheter intervention has some products on the market, but the essence of replacement is to replace the function of the human body itself. With the increase of time, complications often occur, and it is not a long-term effective treatment. The repair of transcatheter intervention has great difficulty in fixing and detaching the device at the lesion in the body, and there are few suitable products and technologies at present.

[0004] In summary, at present, the repair of transcatheter intervention, most medical devices can only release one anchor to the target tissue in the human body at a time, and the anchor is in place. The next screw can be loaded again, the operation process is complicated, the operation time is long, and the operation efficiency is low. SUMMARY

[0005] Therefore, the application provides an anchor releasing device, which comprises a rotating part, a dispersing part and a releasing pipe.

[0006] In a possible implementation, the distance between the rotating part and the dispersing part is adjustable; when the rotating part rotates relative to the dispersing part along the circumferential direction of the releasing pipe, the rotating part can drive the releasing pipe to rotate, so that the angle between the dispersing hole of the releasing pipe to the distal end part of the dispersing part gradually increases or decreases.

[0007] In a possible implementation, the dispersing portion is provided with the dispersing through holes corresponding to the limiting through holes, and the dispersing through holes are variable-diameter holes or constant-diameter holes.

[0008] In a possible implementation, the rotating portion is provided with a guide wire hole at the center thereof, and the dispersing portion is provided with a guide wire hole at the center thereof.

[0009] In a possible implementation, the anchor is provided in two or more than two, and is arranged in two or more than two releasing tubes, and the anchor is arranged at the distal end of the releasing tube; and each releasing tube is adapted to place at least one anchor to be released.

[0010] In a possible implementation, the two or more than two anchors are connected by a wire to form an anchor group.

[0011] In a possible implementation, the dispersing through hole is a variable-diameter hole, and the diameter of the dispersing through hole gradually increases from the proximal end to the distal end.

[0012] In a possible implementation, the anchor push rod is arranged in the releasing tube, and the distal end of the anchor push rod is provided with a clamping groove on the side wall.

[0013] In a possible implementation, the dispersing portion and the rotating portion are both annular structures, and the rotating portion and the dispersing portion are coaxially arranged.

[0014] In a possible implementation, the distance from the center of the limiting through hole to the center of the rotating portion is equal to the distance from the center of the dispersing through hole to the center of the dispersing portion.

[0015] In a possible implementation, the two or more than two dispersing through holes are uniformly arranged along the center of the dispersing portion, and the dispersing through hole is a long hole near the distal end of the releasing tube, and the distal end of the releasing tube has a displacement in the tangential direction of the dispersing portion.

[0016] In a possible implementation, the proximal end of the dispersing through hole is a circular hole.

[0017] In a possible implementation, one end of the distal end of the dispersing through hole and the proximal end of the dispersing through hole are coincident in the axial projection of the dispersing portion.

[0018] In a possible implementation, the dispersing portion is provided with a dispersing portion push rod, the dispersing portion is a cylindrical annular structure, and the distal end of the dispersing portion push rod abuts against the dispersing portion through the rotating portion.

[0019] In a possible implementation, the rotating part push rod is in a cylindrical ring structure, symmetrically arranged on both sides of the rotating part, and the distal end of the rotating part push rod abuts against the rotating part.

[0020] In a possible implementation, the number of the rotating part push rod is more than two.

[0021] In a possible implementation, the number of the dispersing part push rod is more than two.

[0022] In a possible implementation, a side wall of the rotating part is provided with a slot matching the structure of the dispersing part push rod.

[0023] In a possible implementation, the maximum aperture of the dispersing through hole is smaller than the inner diameter of the dispersing part, and the aperture of the limiting through hole is smaller than the inner diameter of the rotating part.

[0024] In a possible implementation, the rotating part and the rotating part push rod are integrally formed.

[0025] In a possible implementation, a conveying outer tube is arranged outside the release tube, the rotating part and the dispersing part.

[0026] In a possible implementation, the proximal end of the dispersing through hole is a plurality of circular holes uniformly arranged along the annular core of the dispersing part, the distal end of the dispersing through hole is an annular hole, and the annular hole at the distal end of the dispersing through hole corresponds to the plurality of circular holes at the proximal end.

[0027] In a possible implementation, the number of the release tube is [8, 10].

[0028] In a possible implementation, the anchor has a single-layer tapered tip structure or a double-layer tapered tip structure.

[0029] In a possible implementation, a guide wire is arranged in the guide wire hole of the release tube, the guide wire hole of the rotating part and the guide wire hole of the dispersing part.

[0030] The beneficial effects of the present application: by sequentially threading the distal end of the release pipe through the rotating part and the dispersion part, and the aperture near the distal end of the release pipe on the dispersion part is larger, when rotating the rotating part, the release pipe originally threaded in the rotating part and the dispersion part in a straight strip shape can change the orientation of the distal end of the release pipe at the position of the dispersion part due to the change of the position of the hole on it, so that the distal end of the release pipe can gradually disperse, or multiple release pipes can be folded to a parallel state. The dispersion of multiple release pipes facilitates the collective release of multiple anchors, and there is no need to transport the anchor to the target tissue in the human body one by one, and the anchor release device of the present application itself has a simple structure, only needs to rotate the rotating part, and can realize the collective release of anchors to the target tissue in the human body, greatly improves the operation efficiency, saves time, and before the anchor is fixed and released, this release method can protect the blood vessels, tissues in the human body and the medical device itself from the damage of the sharp end of the spiral anchor. After the release is completed, the rotating part is reset to the preset position, and the multiple release pipes can be folded to a parallel state, which is easy to recover the medical device from the human body.

[0031] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and serve to explain the principles of the present application.

[0033] Figure 1 A schematic view showing the dispersion state of the release type anchor fixing device according to an embodiment of the present application;

[0034] Figure 2 A schematic view showing the folding state of the release type anchor fixing device according to an embodiment of the present application;

[0035] Figure 3 A partial perspective view showing the folding state of the release pipe according to an embodiment of the present application;

[0036] Figure 4 A partial enlarged view showing the release pipe threaded at the position of the rotating part and the dispersion part according to an embodiment of the present application;

[0037] Figure 5 An assembly view of the rotating part and the dispersion part according to an embodiment of the present application;

[0038] Figure 6 A perspective view of the rotating part according to an embodiment of the present application;

[0039] Figure 7 A perspective view of the dispersion part according to an embodiment of the present application;

[0040] Figure 8 FIG. 9 shows a perspective view of a release tube in a released anchor state, according to an embodiment of the present application;

[0041] Figure 9 FIG. 10 shows a perspective view of an anchor push rod and anchor, according to an embodiment of the present application;

[0042] Figure 10 FIG. 11 shows a rear view of a dispersing portion, according to another embodiment of the present application;

[0043] Figure 11 FIG. 12 shows a partial enlarged view of a distal end of an anchor push rod, according to an embodiment of the present application;

[0044] Figure 12 FIG. 13 shows a rear view of a dispersing portion, according to another embodiment of the present application. DETAILED DESCRIPTION

[0045] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the accompanying drawings. The same reference numbers in different drawings represent the same or similar elements. Although various aspects of embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically noted.

[0046] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate relative or positional relationships based on the orientation or position shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0047] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

[0048] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0049] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0050] Figure 1 A schematic diagram showing the open state of a release anchor fixing device according to an embodiment of this application;

[0051] Figure 2 A schematic diagram showing the closed state of a release anchor fixing device according to an embodiment of this application; Figure 3 A partial perspective view showing the closed state of the release tube according to an embodiment of this application; Figure 4 A partially enlarged view shows a release tube passing through the rotating part and the dispersing part according to an embodiment of this application; Figure 5 An assembly diagram of the rotating part and the dispersing part according to an embodiment of this application is shown; Figure 6 A perspective view of the rotating part according to an embodiment of this application is shown; Figure 7 A perspective view of the dispersion section according to an embodiment of this application is shown; Figure 8 A perspective view of the release tube in the state of the anchor to be released according to an embodiment of this application is shown;

[0052] Figure 9 A perspective view of an anchor push rod and an anchor according to an embodiment of the present application is shown. Figure 10 A rear view of the distributed portion according to another embodiment of this application is shown; Figure 11 A partially enlarged view of the distal end of an anchor push rod according to an embodiment of this application is shown; Figure 12 A rear view of the distributed portion according to another embodiment of this application is shown.

[0053] like Figures 1-12 As shown, the anchor release device includes a rotating part 5, a dispersing part 6, a release tube 7, and an anchor 8. The rotating part 5 has two or more limiting through holes. The dispersing part 6 has dispersing through holes that correspond one-to-one with the limiting through holes. The diameter of the dispersing through holes is larger than the diameter of the rotating part 5, at least on the side closest to the distal end of the release tube. The release tube 7 is a straight tube, and there are two or more of them. The distal end of each release tube 7 passes through the limiting through hole and the dispersing through hole in sequence. Each release tube 7 is suitable for placing at least one anchor 8 to be released. When the rotating part 5 rotates relative to the dispersing part 6 in the circumference of the release tube 7, it can drive the release tube 7 to rotate, so that the angle between the release tube 7 and the dispersing part 6 from the dispersing through hole to the distal end gradually increases or decreases. At least two or more anchors 8 from different release tubes 7 can be collectively released from the distal end of the corresponding release tube 7 into the target tissue in the human body.

[0054] As Figure 1 , Figure 2 shown in this embodiment, by sequentially threading the distal end of the release tube 7 through the rotating part 5 and the dispersion part 6, and the aperture of the dispersion part 6 near the distal end of the release tube 7 is larger, when rotating the rotating part 5, the release tube 7 can be rotated, the release tube 7 originally threaded in a straight line on the rotating part 5 and the dispersion part 6, the angle between the dispersion hole to the distal end of the release tube 7 and the dispersion part 6 gradually expands or shrinks, that is, at the position of the dispersion part 6, the position of the hole changes, thereby changing the orientation of the distal end of the release tube 7, which can gradually disperse the distal end of the release tube 7, or multiple release tubes 7 can be folded to a state where multiple release tubes 7 are parallel to each other. The dispersion of multiple release tubes 7 facilitates the collective release of multiple anchors 8, and ultimately realizes that at least two or more anchors 8 from different release tubes 7 can be collectively released from the distal end of the corresponding release tube 7 into the target tissue in the human body. Without the need to transport anchors one by one to the target tissue in the human body, and the anchor release device itself has a simple structure, only by rotating the rotating part 5, the anchors 8 can be collectively released to the target tissue in the human body, greatly improving the efficiency of the operation, saving time, and protecting the blood vessels, tissues in the human body and the medical device itself from the sharp end of the spiral anchor before the anchor 8 is fixed and released. After the release is completed, the rotating part 5 is reset to the preset position, and the multiple release tubes 7 can be folded to a parallel state, which is easy to recover the medical device from the human body.

[0055] For the convenience of description, the distal end, the distal end of the release tube 7 and the like referred to herein are the end of the relevant components closest to the target tissue in the human body, and on the contrary, the proximal end is the end closest to the medical personnel in the field.

[0056] It also needs to be particularly pointed out that the "collective release" of the anchors 8 referred to herein can be the simultaneous release of the anchors 8 of different release tubes 7, or the one-by-one release of the anchors 8 in each release tube to the target tissue in the human body during the operation process or within a short period of time, so as to achieve the collective release of the anchors 8 and the accurate release position, without the need for single release of each anchor 8, to ensure that the medical personnel can operate simply and conveniently and complete the operation efficiently. The dispersion part 6 is provided with dispersion holes corresponding to the limiting holes one by one, and the one-to-one correspondence referred to herein includes not only the correspondence of the number of limiting holes and dispersion holes, but also the positional correspondence of the dispersion holes and limiting holes. At least it needs to ensure that each release tube 7 can be smoothly threaded into the limiting hole and the dispersion hole, so as to ensure that the release tube 7 can rotate with the rotating part 5, so that the subsequent step of dispersing the release tube 7. In addition, the center of the rotating part 5 and the dispersion part 6 is provided with a through hole for threading the guide wire.

[0057] In one specific embodiment, the distance between the rotating part 5 and the dispersion part 6 is adjustable.

[0058] Further, the dispersion part 6 and the rotating part 5 can be mutually attached or can have a preset interval therebetween. By controlling the interval between the dispersion part 6 and the rotating part 5, the hole positions on the dispersion part 6 and the rotating part 5 are changed, that is, the hole positions are dislocated to change the angle of the release pipe 7. The specific angle of the release pipe 7 scattered by the plurality of release pipes 7 can be determined according to the lesion position of the patient and the required fixed position in each operation, and further adjusted. It is only required to ensure that the interval between the dispersion part 6 and the rotating part 5 is less than 5 cm, so that the maximum scattering position of the release pipe 7 is suitable for releasing and fixing the anchor 8 at the atrium, ventricle or other positions.

[0059] In summary, the specific working process of the anchor releasing device is as follows: the rotating part 5 and the dispersion part 6 are driven by pushing the dispersion part push rod 2 and the rotating part push rod 3, and finally the release pipe 7 is explored out of the delivery outer tube 1 to a suitable position. The rotating part 5 is rotated, the angle of the rotating part 5 and the dispersion part 6 is changed, and the distal end of the release pipe 7 is changed from flat to dispersed state. After adjusting the distal end of the release pipe 7 to reach the target tissue, the anchor releasing push rod 4 is pushed, the anchor 8 is driven into the target tissue, the release and fixation of the anchor 8 are completed, and after the release is completed, the rotating part 5 is reversely rotated, the plurality of release pipes 7 are folded to the parallel state, the dispersion part push rod 2 and / or the rotating part push rod 3 are pulled outward, the device is pulled out of the human body and the recovery is completed.

[0060] More specifically, the delivery outer tube 1 is a single-lumen delivery tube, which functions to deliver the entire internal instrument to the target tissue position. The release pipe 7 is pushed out of the delivery outer tube 1 by axially pushing the rotating part 5 and the dispersion part 6, and the release pipe 7 is exposed from the delivery outer tube 1 as a whole. The rotating part 5 is rotated clockwise, the rotating part 5 and the dispersion part 6 are radially relatively angularly displaced, and the release pipe 7 is circularly tangentially displaced along the special-shaped cavity of the dispersion part 6, so as to realize the dispersion function.

[0061] In one specific embodiment, two or more limiting through holes are formed on the rotating part 5, and two or more dispersion through holes are formed on the dispersion part 6, and the dispersion through holes are variable-diameter holes or equal-diameter holes.

[0062] In this embodiment, two or more limiting through holes are formed on the rotating part 5, which are usually consistent with the number of release pipes 7, and the hole diameter size of the limiting through holes is consistent with the outer pipe diameter size of the release pipe 7, so as to ensure that the release pipe 7 located at the limiting through hole can not shake and rotate with the rotating part 5 when the rotating part 5 is rotated, so as to change the position of the distal end of the release pipe 7.

[0063] As Figure 12As shown, in one of the specific embodiments, the proximal side of the dispersion through hole is a plurality of circular holes 61 uniformly arranged along the annular core of the dispersion part, and the distal side of the dispersion through hole is an annular hole 63, and the annular hole 63 on the distal side of the dispersion through hole corresponds to the plurality of circular holes 61 on the proximal side.

[0064] In this embodiment, the proximal side of the dispersion part 6 is a plurality of uniformly arranged circular holes 61, and the hole on the distal side of the dispersion part 6 is specifically in an annular structure, and the annular hole 63 on the distal side is in communication with each circular hole 61 on the proximal side.

[0065] In one of the specific embodiments, wires are connected between two or more anchor members 8 to form an anchor member group, and the anchor member group is used to collectively release to the target tissue.

[0066] In this embodiment, wires are connected between a plurality of anchor members 8, and the plurality of anchor members 8 connected by wires form an anchor member group, and the anchor member group connected by wires is convenient to complete the collective release together, and if the fixed position is offset or the fixed position of the anchor member 8 needs to be adjusted, it is also convenient to release the whole body again, without the need to adjust each anchor separately, which is beneficial to save operation time.

[0067] As shown in the specific embodiment, Figure 10 In one of the specific embodiments, when the dispersion through hole is a variable diameter hole, the hole diameter of the dispersion through hole gradually increases from the proximal end to the distal end of the release tube 7.

[0068] In this embodiment, when the dispersion through hole is a variable diameter hole, the hole diameter of the variable diameter hole on the proximal side of the release tube 7 is smaller than the hole diameter on the distal side of the release tube 7, and preferably, the hole shape near the proximal side of the release tube 7 is consistent with the shape of the limiting through hole.

[0069] As shown in the specific embodiment, Figure 8 , Figure 9 , Figure 11 As shown in one of the specific embodiments, it also includes an anchor member push rod 4, the anchor member push rod 4 is arranged inside the release tube 7, and a clamping groove 41 is arranged on the side wall of the distal end of the anchor member push rod 4, which is used to fix the anchor member 8 and connect the wires.

[0070] In this embodiment, the anchor member push rod 4 is arranged inside the release tube 7, and the distal end of the anchor member push rod 4 is provided with a clamping groove 41, and the clamping groove 41 is symmetrically arranged on the distal end of each release tube 7, and the clamping groove 41 is used to clamp and fix the anchor member 8, and the clamping groove 41 can be in communication with the fixing through hole arranged on the anchor member 8, and the wires connecting the anchor members 8 pass through the fixing through hole of the anchor member 8 to form an anchor member group, and the wires also pass through the clamping groove 41, which is convenient for connecting adjacent anchor members 8.

[0071] In one specific embodiment, both the dispersing part 6 and the rotating part 5 have annular structures, and the rotating part 5 and the dispersing part 6 are coaxially arranged.

[0072] In this embodiment, the ring-shaped dispersing part 6 and rotating part 5 facilitate the insertion of guide wires at the center of the ring, making it easy to achieve coaxial arrangement of the dispersing part 6 and rotating part 5.

[0073] In one specific embodiment, the distance from the center of the limiting through hole to the annular center of the rotating part 5 is equal to the distance from the center of the dispersing through hole to the annular center of the dispersing part 6. The dispersing through hole is at least close to the far end of the release tube 7 and is shaped as an elongated hole 62. The elongated hole 62 can be a hole with arc-shaped ends and a straight middle section connected to the two ends.

[0074] In this embodiment, the proximal side hole of the dispersion through hole is a round hole 61 with a diameter equal to that of the limiting through hole, both smaller than the distal side hole of the dispersion through hole. The shape of the distal side hole of the dispersion through hole is: a long strip hole 62 that extends tangentially from the center of the dispersion through hole to both outer ends at a certain distance and is connected by an arc at both ends.

[0075] In one specific embodiment, the orifice shape of the dispersion through hole near the proximal end of the release tube 7 is a round hole 61, and the orifice shape of the dispersion through hole near the distal end of the release tube 7 is an elongated hole 62. One end of the orifice on the distal end of the dispersion through hole coincides with the axial projection of the orifice on the proximal end of the dispersion through hole in the dispersion part 6. The two ends of the orifice on the distal end of the dispersion through hole are arc-shaped, and the middle section is straight and connected to the two ends.

[0076] like Figure 10 As shown, preferably, the shape of the dispersion through-hole near the proximal end is a circular hole 61, and the shape of the dispersion through-hole near the distal end is an elongated hole 62. One side of the elongated hole 62 coincides with the axial projection of the circular hole 61 onto the dispersion portion 6. The elongated hole 62 is a hole with semicircular ends and a straight line connecting the middle section. Compared to... Figure 12 The proposed solution Figure 10 The dispersed through-hole design of this type can be understood as dividing a complete annular hole 63 into multiple straight or elongated holes 62, with each elongated hole 62 corresponding to a circular hole 61. The release tube 7 can only move from the side overlapping with the circular hole 61 to the extension side of the elongated hole 62 within the elongated hole 62, and disperse, so as to restrict the movement track of the release tube 7, thereby restricting the dispersion and convergence trajectory of multiple release tubes 7, and further enhancing the overall controllability of the device.

[0077] It should also be noted that when the dispersing through hole is a hole of equal diameter, the diameter of the dispersing through hole is larger than the diameter of the limiting through hole, which can effectively make the release tube 7 gradually disperse.

[0078] like Figure 4 , Figure 5As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2.

[0079] As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2. Figure 6 、 Figure 7 As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2.

[0080] As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2. Figure 4 、 Figure 5 As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2.

[0081] As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2.

[0082] As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2. Figure 3 、 As shown in one of the specific embodiments, the dispersing part push rod 2 is further included, the dispersing part 6 is in a cylindrical ring structure, the distal end of the dispersing part push rod 2 penetrates through the rotating part 5 and abuts against the dispersing part 6, and the side wall of the rotating part 5 is provided with a displacement slot matching the structure of the dispersing part push rod 2.

[0083] In this embodiment, the anchor releasing device of the embodiments of the present application further comprises a guide wire arranged inside the overall structure of the rotating part 5, the dispersing part 6 and the releasing tube 7, and a delivery outer tube 1 arranged outside the overall structure of the rotating part 5, the dispersing part 6 and the releasing tube 7, and the anchor 8 is specifically a single-layer or double-layer conical structure, and the double-layer conical structure is specifically a loose tower structure, and the two layers of the conical structure are stacked in the same direction and coaxially, so that the two layers of the conical structure can be fixed to the ventricle and the atrium respectively.

[0084] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of the technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. An anchor release device, characterized by, The rotating part, the dispersion part and the release pipe are included. Two or more than two limiting through holes are arranged on the rotating part, and a guide wire hole is arranged at the center of the rotating part. The dispersion part is provided with dispersion through holes corresponding to the limiting through holes, and the aperture of the dispersion through hole at least near the distal end of the release pipe is larger than the aperture of the limiting through hole. The dispersion through hole is a variable diameter hole, and the aperture of the dispersion through hole gradually increases from the proximal end to the distal end. The distance between the rotating part and the dispersion part is adjustable. When the rotating part rotates relative to the dispersion part along the circumferential direction of the release pipe, the rotating part can drive the release pipe to rotate, so that the angle between the release pipe and the dispersion part gradually expands or shrinks.

2. The anchor release device of claim 1, wherein, The distance between the dispersion part and the rotating part is less than 5 cm. The release pipe is in a straight pipe shape, and the number is two or more. The distal end of each release pipe is sequentially arranged through the limiting through hole and the dispersion through hole.

3. The anchor release device of claim 2, wherein, The dispersion through hole is evenly arranged along the ring core of the dispersion part, and the side of the dispersion through hole near the distal end of the release pipe is in the shape of a long hole.

4. The anchor release device of any one of claims 2 or 3, wherein, The distal end of the release pipe can have displacement in the tangential direction of the dispersion part.

5. The anchor release device of claim 1, wherein, The anchor is included.

6. The anchor release device of claim 1, wherein, The number of anchors is two or more, which are arranged in two or more release pipes.

7. The anchor release device of claim 1, wherein, Each release pipe is suitable for placing at least one anchor to be released.

8. The anchor release device of claim 7, wherein, The two or more anchors are connected by a wire to form an anchor group. The anchor push rod is arranged in the release pipe, and a clamping groove is arranged on the side wall of the distal end of the anchor push rod.

9. The anchor release device of claim 8, wherein, The structure of the dispersion part and the rotating part is in a ring shape, and the rotating part and the dispersion part are coaxially arranged.

10. The anchor release device of claim 9, wherein, The proximal end of the dispersion through hole is in the shape of a round hole.

11. The anchor release device of claim 9, wherein, One end of the distal end of the dispersion through hole and the proximal end of the dispersion through hole coincide in the axial projection of the dispersion part.

12. The anchor release device of claim 9, wherein, The dispersion part push rod is included.

13. The anchor release device of claim 1, wherein, The dispersion part is in a cylindrical ring shape, and the distal end of the dispersion part push rod abuts to the dispersion part through the rotating part.

14. The anchor release device of claim 9, wherein, The rotating part push rod is symmetrically arranged on both sides of the rotating part, and the distal end of the rotating part push rod abuts to the rotating part.

15. The anchor release device of claim 1, wherein, The number of rotating part push rods is two or more. The number of dispersion part push rods is two or more. The side wall of the rotating part is provided with a clearance groove matched with the structure of the dispersion part push rod. The maximum aperture of the dispersion through hole is smaller than the inner diameter of the dispersion part. The rotating part and the rotating part push rod are integrally formed. The conveying outer pipe is included. The delivery outer tube is sleeved outside the release tube, the rotating part and the dispersing part respectively.

16. The anchor release device of claim 1, wherein, The proximal end of the dispersing through hole is a plurality of circular holes uniformly arranged along the ring core of the dispersing part, and the distal end of the dispersing through hole is an annular hole corresponding to the plurality of circular holes at the proximal end.

17. The anchor release device of claim 1, wherein, The number of the release tubes is [8, 10].

18. The anchor release device of any one of claims 2 or 3, wherein, The anchor has a single-layer conical tip structure or a double-layer conical tip structure.

19. The anchor release device of claim 1, wherein, The guide wire is arranged in the plurality of release tubes, the guide wire hole of the rotating part and the guide wire hole of the dispersing part respectively.

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