Implant and implant system

Abstract

An implant and an implant system. The implant is used for being implanted into a target part in a living body. The implant comprises a stent (100). The stent (100) is used for being provided at the target part to ameliorate physiological functions of the living body, the stent (100) comprises a cylindrical main body (110) made of a metal material, an opening (130) is provided on the peripheral surface of the cylindrical main body (110), and the opening (130) extends over at least a portion of the length of the cylindrical main body (110). The implant facilitates smooth transmission of wireless signals.

Description

Implants and implant systems Technical Field

[0001] The present disclosure relates to the field of medical devices, and in particular, to an implant and an implant system. Background Art

[0002] Heart failure is a clinical syndrome caused by abnormal ventricular filling and ejection function. The main manifestations of heart failure include dyspnea, fatigue, and fluid retention (pulmonary congestion, systemic congestion, and peripheral edema). Heart failure can be divided into three categories: heart failure with reduced ejection fraction, heart failure with mildly reduced ejection fraction, and heart failure with preserved ejection fraction. In patients with chronic heart failure with preserved ejection fraction and reduced ejection fraction, persistently elevated left atrial pressure is the main cause of pulmonary congestion, and 90% of heart failure patients are hospitalized for this reason.

[0003] Atrial shunt surgery is a means of improving left atrial hypertension. It diverts blood flow from the left atrium to the right atrium by creating a hole in the atrial septum, thereby reducing the load on the left atrium. Atrial shunt surgery is divided into implant shunts and non-implant shunts. Implant shunts require the implant to be fixed in the artificially formed atrial septum hole to keep the hole open. Currently, atrial septal hole creation and implant fixation are generally performed through vascular intervention. The specific process is to accommodate the device or shunt in a catheter, and then deliver the device or shunt through the human artery or vein to the site of heart disease for operation. Due to the limited diameter of the blood vessel, the corresponding catheter diameter is also limited. Therefore, the shunt needs to be kept in a compressed state in the catheter first, and then automatically or passively expand to the predetermined size after being removed from the catheter when it reaches the target site.

[0004] In addition to the aforementioned shunts suitable for heart failure patients, other stent-like implants suitable for placement within the heart or blood vessels are available for cardiovascular disease patients. For example, some patients require occluders in their hearts or blood vessels to improve cardiovascular function, and patients with vascular stenosis may require vascular stent implants. However, in addition to treating related symptoms with implants, patients may also need to implant other components that require wireless communication with the outside world. For example, wireless monitoring devices to monitor the patient's cardiovascular hemodynamic parameters. For heart failure patients, in addition to surgical treatment, atrial pressure monitoring is also an important health management method. Therefore, under certain conditions, wireless pressure monitoring devices are installed on the atrial septum. However, because stents are typically mesh structures made of woven metal wires or cut from tubing, the mesh structure can interfere with or even shield the wireless signal transmission of wireless communication components. On the other hand, if the pressure monitoring device is placed axially at the proximal or distal end of the stent, it increases the overall structural length, hinders normal blood flow, affects the size of the stent port, and creates the risk of long-term stenosis.

[0005] Summary of the Invention

[0006] In view of this, the present disclosure provides an implant and an implant system for solving at least part of the aforementioned problems.

[0007] In a first aspect, an implant is provided for implantation into a target site within a living organism. The implant includes a stent. The stent is positioned at the target site to improve physiological function within the living organism. The stent comprises a cylindrical body made of a metal material. The cylindrical body has openings disposed on its circumference, the openings extending over at least a portion of the length of the cylindrical body.

[0008] In a possible implementation manner, the opening has at least a first open end.

[0009] In combination with the above possible implementations, in one possible implementation, the openings are distributed over the entire length of the cylindrical body and further have a second open end.

[0010] In combination with the above possible implementations, in one possible implementation, the opening extends in a spiral, straight, or wavy form on the circumference of the cylindrical body.

[0011] In combination with the above possible implementations, in one possible implementation, when the opening extends in a spiral form on the circumference of the cylindrical body, it extends at least twice on the circumference of the cylindrical body.

[0012] In combination with the above possible implementations, in one possible implementation, the cylindrical body is formed by spirally winding an elastic curved segment, and the gap between two adjacent turns of the elastic curved segment forms an opening.

[0013] In combination with the above possible implementation manners, in a possible implementation manner, the elastic curve segment is a metal wire or a metal strip cut from a metal piece.

[0014] In combination with the above possible implementations, in one possible implementation, the elastic curve segment extends circumferentially from the starting position in a ring form for one circle, then extends upward in a spiral form for one or more circles, and then extends again in a ring form for one circle, thereby forming the cylindrical body.

[0015] In combination with the foregoing possible implementations, in a possible implementation, the elastic curve segment is a wavy metal segment.

[0016] In combination with the above possible implementations, in one possible implementation, the opening divides the cylindrical body into an open-loop structure having a C-shaped axial profile projection surface, and the open-loop structure has a first end and a second end opposite to each other.

[0017] In combination with the above possible implementations, in one possible implementation, the first end portion and the second end portion are not in contact with each other, or are staggered in the circumferential direction or radial direction.

[0018] In combination with the above possible implementations, in a possible implementation, the cylindrical body has a mesh structure, and the mesh structure is woven from metal wires or cut from metal parts.

[0019] In combination with the above possible implementations, in one possible implementation, when the open-loop structure is compressed, a stacked structure having a spiral axial profile projection surface is formed, and the first end is wound from the inner side of the second end toward the center.

[0020] In combination with the above possible implementation methods, in one possible implementation method, a wireless sensor is also included, which includes a detection element and a wireless signal transmission element. The detection element is used to obtain target physiological parameters, and the wireless signal transmission element is used to transmit the target physiological parameters obtained by the detection element to the outside of the organism.

[0021] In combination with the above possible implementations, in one possible implementation, in a working state, the wireless sensors are located outside the cylindrical body; when the cylindrical body is compressed, the wireless sensors are located side by side outside the cylindrical body.

[0022] In combination with the above possible implementations, in one possible implementation, in a working state, the wireless sensor is located inside the cylindrical body; when the cylindrical body is compressed, the wireless sensor is located inside the cylindrical body.

[0023] In combination with the above possible implementations, in a possible implementation, the wireless sensor further includes a housing, and the detection element is located at one end of the housing and protrudes a predetermined distance relative to the cylindrical body along the length direction of the housing.

[0024] In combination with the above possible implementation methods, in one possible implementation method, the bracket also includes a clamping arm group, the clamping arm group includes at least a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are distributed on the outer periphery of the cylindrical body at intervals along the axial direction of the cylindrical body, and the first clamping arm and the second clamping arm each form a cantilever protruding from the outer periphery of the cylindrical body.

[0025] In combination with the above possible implementation methods, in one possible implementation method, the first clamping arm and / or the second clamping arm are formed by bending an elastic metal wire or a metal strip. The first clamping arm and / or the second clamping arm have a U-shaped or V-shaped structure formed by the elastic metal wire or the metal strip extending radially a predetermined distance and then folding back.

[0026] In combination with the above possible implementations, in a possible implementation, the first clamping arm and / or the second clamping arm are integrally formed with the cylindrical body.

[0027] In combination with the above possible implementations, in a possible implementation, the stent further includes a coating, which is applied on the inner side and / or outer side of the cylindrical body, and the coating is made of an insulating material.

[0028] In combination with the above possible implementations, in one possible implementation, the implant further includes a wireless sensor and a connector, the bracket and the wireless sensor are arranged in parallel, and the wireless sensor is connected to the coupling section of the bracket through the connector, and the coupling section is integrally formed with the cylindrical body.

[0029] In combination with the above possible implementation methods, in one possible implementation method, the joining section includes a first joining section and a second joining section, the connecting member includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the wireless sensor, and the second connecting portion includes a sheet portion, and the sheet portion is clamped by the first joining section and the second joining section.

[0030] In combination with the above possible implementations, in one possible implementation, the free ends of the first engaging segment and the second engaging segment point in opposite directions.

[0031] In a second aspect, an implant system is provided, comprising a delivery catheter and an implant, wherein the implant is any one of the implants described in the first aspect, and when the implant is disposed in the catheter, the implant is in a compressed state and can be extended from the catheter.

[0032] In a possible implementation, the cylindrical body is compressed into a structure whose axial profile projection surface is C-shaped, spiral-shaped, or a wavy closed loop.

[0033] In a possible implementation, when the cylindrical body is compressed into a C-shaped structure with an axial profile projection surface, the outer surface of the compressed cylindrical body at least partially surrounds the wireless sensor.

[0034] In a possible implementation, when the cylindrical body is compressed into a structure whose axial profile projection surface is a spiral line, the wireless sensors are located side by side outside the cylindrical body, or the wireless sensors are located inside the cylindrical body.

[0035] In a possible implementation, when the cylindrical body is compressed into a structure whose axial profile projection surface is a wavy closed loop, the wireless sensor is located inside the cylindrical body.

[0036] In combination with the above possible implementations, in a possible implementation, a signal receiving device is further included, and the signal receiving device is used to transmit signals to the wireless sensor in the implant.

[0037] The implant provided herein comprises a support comprising a cylindrical body made of a metal material. The opening provided on the circumference of the cylindrical body has at least a first open end. This first open end ensures that the physical structure enclosing the opening is free of circumferential closed loop structures within at least one axial region, thereby reducing interference with wireless signals caused by the metal cylindrical body. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments.

[0039] It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be considered limiting of the scope.

[0040] It should also be understood that the same or similar reference numerals are used in the drawings to identify the same or similar elements.

[0041] It should also be understood that the drawings are merely schematic and that the sizes and proportions of elements in the drawings are not necessarily accurate.

[0042] FIG1 is a schematic structural diagram of a target site m1 in a living body according to an embodiment of the present disclosure.

[0043] FIG2 is a schematic structural diagram of an implant according to an embodiment of the present disclosure.

[0044] FIG3 is a schematic structural diagram of the implant in FIG2 without the covering.

[0045] FIG. 4 is a schematic structural diagram of the elastic curve section of the cylindrical body of the implant in FIG. 2 .

[0046] FIG5 is a schematic structural diagram of the implant in FIG2 omitting the wireless sensor.

[0047] FIG6 is an enlarged schematic diagram of the junction between the upper and lower sections of the tubular body after omitting the wireless sensor.

[0048] FIG. 7 is a schematic diagram of a compressed state of the implant according to the aforementioned embodiment when located in a delivery tube.

[0049] FIG8 is a schematic diagram of the axial profile projection of the delivery tube and the implant in FIG7 .

[0050] FIG. 9 is a schematic diagram of a delivery tube containing an implant when it reaches the target site.

[0051] FIG10 is a schematic diagram of an implant extending one end from a delivery tube and a first clamping arm.

[0052] FIG. 11 is a schematic diagram illustrating the situation in which the delivery tube is retracted to allow the first clamping arm of the implant to reach the surface of the atrial septum.

[0053] FIG. 12 is a schematic diagram showing the implant being installed at the target site after the delivery tube has been removed.

[0054] FIG13 is a schematic structural diagram of an implant according to another embodiment of the present disclosure.

[0055] FIG14 is a schematic diagram of the axial profile projection structure of the implant in FIG13 located within the delivery tube.

[0056] FIG15 is a schematic structural diagram of an implant according to another embodiment of the present disclosure.

[0057] FIG16 is a schematic diagram of the axial profile projection structure of the implant in FIG15 located within the delivery tube.

[0058] FIG17 is a schematic structural diagram of an implant according to another embodiment of the present disclosure.

[0059] FIG. 18 is a schematic structural diagram of the stent of the implant in FIG. 17 omitting the wireless sensor.

[0060] FIG19 is a schematic diagram of the axial profile projection structure of the bracket in FIG18 in the first state.

[0061] FIG20 is a schematic diagram of the axial profile projection structure of the bracket in FIG18 in the second state.

[0062] FIG21 is a schematic diagram of the axial profile projection structure of the implant in FIG17 when it is located in the delivery tube.

[0063] FIG22 is a schematic diagram of the axial profile projection structure of the implant when it is located in the delivery tube in an optional embodiment.

[0064] FIG23 is a schematic structural diagram of a cylindrical body of an implant according to another embodiment of the present disclosure.

[0065] FIG24 a is a schematic diagram of the longitudinal profile projection shape of the cylindrical body in an optional embodiment.

[0066] FIG24 b is a schematic diagram of the longitudinal profile projection shape of the cylindrical body in another optional embodiment.

[0067] FIG24c is a schematic diagram of the longitudinal profile projection shape of the cylindrical body in another optional embodiment.

[0068] Figure 24d is a schematic diagram of the longitudinal profile projection shape of the cylindrical body in another optional embodiment.

[0069] Figure 24e is a schematic diagram of the longitudinal profile projection shape of the cylindrical body in another optional embodiment. DETAILED DESCRIPTION

[0070] The following is an exemplary description of the embodiments of the present disclosure in conjunction with the accompanying drawings. It should be understood that the present disclosure can be implemented in many ways and should not be construed as being limited to the embodiments described herein. The embodiments described herein are only for a more thorough and complete understanding of the present disclosure.

[0071] It should be understood that the term "including" and its variations used in the present disclosure are open inclusions, that is, "including but not limited to." The term "according to" means "at least in part according to," and the term "plurality" means "two or more."

[0072] It should be understood that although the terms “first” or “second” etc. are used in the present disclosure to describe various elements, these elements are not limited by these terms, and these terms are only used to distinguish one element from another.

[0073] The present disclosure provides an implant for implantation into a target site in a living body to improve the physiological function of the living body and obtain target physiological parameters. The implant includes a stent, which can specifically be a mesh structure such as a shunt, an occluder or a vascular stent. The stent is used to be arranged at the target site. The stent includes a cylindrical body made of a metal material, and the circumference of the cylindrical body is provided with an opening, and the opening extends and is distributed over at least a part of the length of the cylindrical body and has at least a first open end. The opening provided on the circumference of the cylindrical body has at least a first open end, and the first open end makes the physical structure of the stent forming the opening have no metal closed-loop structure at any circumferential surface position, thereby reducing the interference of the cylindrical body made of metal material to the wireless signal.

[0074] FIG1 is a schematic structural diagram of a target site m1 in a living body according to an embodiment of the present disclosure. Specifically, the target site m1 is a hole located in the atrial septum m2 between the left atrium and the right atrium. The hole can be an unclosed foramen ovale or an artificial hole. For some patients with heart failure, the hole can reduce left atrial pressure and alleviate heart failure symptoms. The stent provided in the embodiment of the present disclosure is a shunt, which can be arranged in the hole to maintain the shape of the hole and guide blood flow from the left atrium to the right atrium.

[0075] In this embodiment, the implant may further include a wireless sensor comprising an electrically connected detection element and a wireless signal transmission element. The detection element is configured to obtain a target physiological parameter, and the wireless signal transmission element is configured to transmit the target physiological parameter obtained by the detection element to the outside of the biological body. At least a portion of the wireless sensor may be disposed within or outside the cylindrical body, and both may transmit wireless signals.

[0076] Preferably, the wireless sensor is positioned midway along the outer circumference of the shunt. Therefore, when the implant in this embodiment is positioned on the atrial septum m2, the wireless sensor and stent are positioned within and in contact with the target site m1. Furthermore, the wireless sensor can have two sensing elements at either end to simultaneously acquire pressure data from both the left and right atria, or it can have only one sensing element at one end to acquire pressure data from the left atria only.

[0077] Referring to Figures 2 to 5, Figures 2 to 5 are schematic diagrams of the structure of an implant according to an embodiment of the present disclosure. Specifically, Figure 2 is a schematic diagram of the structure of an implant according to an embodiment of the present disclosure. Figure 3 is a schematic diagram of the structure of the implant in Figure 2 omitting the covering 120. Figure 4 is a schematic diagram of the structure of the elastic curved section 101 of the tubular body 110 of the implant in Figure 2. Figure 5 is a schematic diagram of the structure of the implant in Figure 2 omitting the wireless sensor 200.

[0078] The implant includes a stent 100, a wireless sensor 200, and a connector 300. The stent 100 and the wireless sensor 200 are arranged side by side, and the connector 300 connects the two together. It should be understood that "side by side" in the present invention is not limited to a parallel arrangement. The stent 100 and the wireless sensor can also be positioned at a predetermined angle (but not perpendicularly). "Side by side" in the present invention is not limited to the outer surfaces of the two abutting against each other. The wireless sensor can also be arranged in the stent 100 with the outer surface of the wireless sensor abutting against the inner surface of the stent 100. Of course, preferably, the stent 100 and the wireless sensor 200 are arranged in parallel, and the wireless sensor 200 is connected to the stent's joint section via the connector. Preferably, the joint section is integrally formed with the elastic curved section. When the stent body has a cylindrical structure and the wireless sensor 200 also has a cylindrical structure, under the action of the connector and the stent's joint section, the wireless sensor 200 and the stent 100 present an circumscribed configuration. Such a design, compared with other methods of setting the sensor 200 outside the stent 100, can make the implant have a smaller radial size during the delivery process, so that it is easier to be pressed and gripped in the delivery device. Compared with the method of setting the sensor 200 inside the stent 100, it can avoid the sensor 200 interfering with the blood flow in the stent 100.

[0079] In this embodiment, the stent 100 includes a cylindrical body 110, a first clamping arm 112, a second clamping arm 113, and a coating 120. The cylindrical body 110 is a generally cylindrical structure formed by spirally winding an elastic curved segment 101. The elastic curved segment 101 is a metal wire. The elastic curved segment 101 is spirally wound multiple times to form a hollow cylindrical structure. In this embodiment, the elastic curved segment 101 is wound five times along a spiral winding path 160, forming a first coil 1011, a second coil 1012, a third coil 1013, a fourth coil 1014, and a fifth coil 1015. An opening 130 is formed between adjacent coils, radially connecting the interior and exterior of the cylindrical structure. In other words, the opening 130 is an irregular, strip-shaped hollow portion extending spirally along the circumference of the cylindrical structure. Along this direction of extension, the hollow portion has a first open end 131 and a second open end 132, respectively. In this way, the openings 130 are distributed throughout the entire length of the cylindrical body 110, and the ends of the openings 130 are not sealed, resulting in no closed metal ring structures within the entire cylindrical body. In some alternative embodiments, the openings 130 can be closed at one end, such as by the end of the metal wire at the first open end 131 contacting and enclosing the fifth coil 1015. Because the openings 130 eliminate any metal ring structures forming a closed loop within the entire cylindrical body, signal transmission from the wireless sensor 200 is not affected by the cylindrical body 110, regardless of whether the wireless sensor 200 is located inside or outside the cylindrical body 110. Compared to the prior art, when the wireless sensor 200 is located inside the cylindrical body 110, signal transmission performance can be significantly improved. When the wireless sensor 200 is located outside the cylindrical body 110, interference with signal transmission caused by the cylindrical body 110 can also be reduced.

[0080] The first clamping arm 112 and the second clamping arm 113 extend radially outward from the surface of the cylindrical body 110 to form a cantilever structure. The first clamping arm 112 and the second clamping arm 113 form at least one clamping arm set, which are arranged on both sides of the atrial septum m2 to clamp the atrial septum m2. Preferably, the cylindrical body 110, the first clamping arm 112, and the second clamping arm 113 are all formed by winding and bending the elastic curved segment 101.

[0081] The cylindrical body 110 is divided into an upper tube 10 and a lower tube 20. The number of the first clamping arms 112 and the second clamping arms 113 are both three. The three first clamping arms 112 are evenly distributed on the surface of the upper tube 10. The three second clamping arms 113 are evenly distributed on the surface of the lower tube 20. A portion of the elastic curved segment 101 extends in a wave-like manner in the axial direction and at the same time spirals and extends as a whole in the circumferential direction to form a mesh cylinder; another portion of the elastic curved segment 101 extends radially outward from the surface of the mesh cylinder and then folds back to the surface of the cylinder to form a U-shaped clamping arm. Specifically, in the process of spirally extending in the circumferential direction to form the mesh cylinder, the elastic curved segment 101 also extends radially outward from the surface of the mesh cylinder and then folds back to the surface of the cylinder to form a roughly U-shaped clamping arm.

[0082] In other embodiments, the opening 130 may also exist only in a section of the cylindrical body, such as the upper section 10 of the cylindrical body, and the wireless sensor 200 is arranged inside or outside the upper section 10. The cylindrical body 110 may also include a plurality of elastic curved segments 101 that are not directly connected, and these elastic curved segments 101 can be kept in the same relative position by the coating 120 to achieve indirect connection. The cylindrical body 110 may also be cut from a metal part, and the elastic curved segment 101 and / or the clamping arm group are metal strips cut from a metal part, and the metal part may be a metal tube or a metal sheet; when the metal part is a metal sheet, the cylindrical body 110 is formed by cutting and winding the metal sheet, and the elastic curved segment and the clamping arm group are integrally formed.

[0083] Furthermore, the three first clamping arms 112 and the three second clamping arms 113 form three clamping arm groups. The first clamping arm 112 and the second clamping arm 113 of each clamping arm group are spaced apart in the axial direction. The first clamping arm 112 is spaced apart from the first end (upper end in FIG. 2 ) of the cylindrical body 110 by a first predetermined distance. The second clamping arm 113 is spaced apart from the second end (lower end in FIG. 2 ) of the cylindrical body 110 by a second predetermined distance. The free end of the first clamping arm 112 overlaps with the free end of the second clamping arm 113 in axial projection, while the fixed end of the first clamping arm 112 is staggered with the fixed end of the second clamping arm 113 in axial projection, thereby achieving a larger clamping area (the area of ​​the clamping area formed by the first clamping arm 112 and the second clamping arm 113 together) and obtaining a better clamping effect. The fixed end of the first clamping arm 112 and the fixed end of the second clamping arm 113 are the ends at which they are respectively connected to the cylindrical body 110. The upper tube 10 and the lower tube 20 are coaxially distributed and can be connected by a coating 120 and / or an elastic curved segment. The elastic curved segment of the lower tube 20 extends in a circular form in the circumferential direction for one circle at the starting position and then extends upward in a spiral form. The elastic curved segment of the upper tube 10 extends in a spiral form in the circumferential direction at the starting position and extends in a circular form for the last circle. In the above embodiment, the axial distance between the upper and lower clamping arms is 3 mm. The optional range of the axial distance is greater than 0 mm and less than or equal to 5 mm. In the above embodiment, the elastic metal wire constituting the clamping arm and the elastic curved segment of the cylinder to which the base of the clamping arm is attached are the same elastic metal wire or metal strip. In some optional embodiments, the clamping arm can be a separate U-shaped or V-shaped part, which is welded to the elastic curved segment of the cylinder by welding. The elastic curved segment of the upper tube 10 and the elastic curved segment of the lower tube 20 are continuous curved segments.

[0084] The clamping arm design in this embodiment is different from the waist-shaped or flange-shaped anchoring design in the prior art. It can effectively reduce the volume of the shunt device in the cavity and the contact area with the anchor point to avoid adverse effects on blood flow, and can firmly anchor the main body in the target area.

[0085] The coating 120 is applied to the inner surface of the tubular body 110. In this embodiment, the length of the coating 120 is equal to the sum of the lengths of the upper tube and the lower tube. Since the coating 120 is a tubular structure with a certain strength, it can also strengthen the strength of the tubular body 110 and the connection strength between the upper tube and the lower tube when applied to the inner / outer surface of the tubular body 110, while maintaining the preset shape of the elastic curve segment, thereby maintaining the shape of the tubular body 110. The coating 120 is usually made of a polymer material, which can make the inner cavity of the tubular body smooth, prevent the proliferation of atrial septal tissue from blocking the tubular cavity, and maintain the tubular cavity unobstructed. The material of the coating 120 can be a polymer material or a biomaterial, not limited to polyester, polytetrafluoroethylene, animal pericardium, etc. The surface of the coating 120 can be coated to improve the surface finish to improve the long-term patency rate. In some optional embodiments, the coating 120 can also be provided on the outer surface of the tubular body 110. In other optional embodiments, a coating 120 may be provided on both the inner and outer surfaces of the cylindrical body 110. Another beneficial effect of the coating 120 is that it provides insulation, which can isolate the cylindrical body 110 from the wireless sensor 200 to a certain extent, preventing signal interference. The coating 120 and the cylindrical body 110 can be connected by heat pressing or sewing. To more clearly distinguish the coating 120 from the cylindrical body 110, the thickness of the coating 120 is intentionally exaggerated in the figure and the coating 120 is depicted on the inner surface of the cylindrical body 110. The actual thickness is smaller than the illustrated size.

[0086] Those skilled in the art will appreciate that, although in this embodiment, the bracket 100 and the wireless sensor 200 are connected via the connector 300 , in other embodiments, the bracket 100 may also be used as an independent diverter.

[0087] In this embodiment, the joining section includes a first joining section and a second joining section, each integrally formed with a portion of the two elastic curved sections. In other words, the first joining section is formed by a natural extension of a portion of the elastic curved section, and the second joining section is formed by a natural extension of a portion of the other elastic curved section. Referring to Figure 6, an enlarged schematic diagram of the junction of the upper tube 10 and the lower tube 20 behind the sensor is omitted. In the middle of the cylindrical body 110, the initial section (upper section) of the elastic curved section of the lower tube 20 forms the first joining section 114, and the terminal section (lower section) of the elastic curved section of the upper tube 10 forms the second joining section 115.

[0088] Please refer to Figure 2. The wireless sensor 200 includes a detection element 210 and a wireless signal transmission element 220. The detection element 210 can be a pressure detection element that can measure, for example, the pressure of blood flow. The detection element 210 is arranged at one end of the wireless sensor 200 to monitor the pressure of the left atrium. The wireless signal transmission element 220 is used to transmit the signal collected by the detection element 210 to the outside of the human body in the form of electromagnetic waves. The detection element 210 and the wireless signal transmission element 220 are packaged as a whole by a sealing structure. In other embodiments, two detection elements 210 can also be arranged at the two ends of the wireless sensor 200 to detect the pressure of the left atrium and the right atrium, and the wireless signal transmission element 220 is arranged between the two detection elements 210. Preferably, the wireless sensor 200 also includes a shell, and the detection element 210 is located at one end of the shell and protrudes a predetermined distance relative to the cylindrical body 110 in the length direction of the shell. That is, at the end where the detection element 210 is located, the sensing surface of the wireless sensor 200 protrudes relative to the cylindrical body 110 to prevent intimal hyperplasia from occurring on the sensing surface of the detection element 210.

[0089] In this embodiment, the connector 300 is an annular sleeve. A portion of the annular sleeve slightly protrudes outward, forming a second connecting portion 320. The remaining portion, excluding the second connecting portion 320, constitutes the first connecting portion 310. The outward protrusion of the second connecting portion 320 may be formed by the pull of the bracket 100 and the wireless sensor 200 after the connector 300 connects them, or it may be a permanent protrusion applied during manufacturing. The first connecting portion 310 is disposed around the center of the wireless sensor 200. The second connecting portion 320 is an overall thin sheet structure, comprising a sheet portion 321. The sheet portion 321 is generally rectangular. The sheet portion 321 has two parallel edges: an upper edge and a lower edge, perpendicular to the axis of the annular sleeve. The upper edge and at least a portion of its adjacent area form one edge portion 322, while the lower edge and at least a portion of its adjacent area form another edge portion 322. The two edge portions 322 are intended to be clamped by the first and second engaging segments 114 and 115, forming the clamped portions.

[0090] In this embodiment, the width (axial dimension) of the annular sleeve is relatively small, while the first and second engaging segments 114, 115 are relatively long. Therefore, the first and second engaging segments 114, 115 each clamp two edge portions 322, that is, the first and second engaging segments 114, 115 clamp the entire axial area of ​​the sheet portion 321. In some alternative embodiments, the sheet portion 321 has a larger axial dimension and / or the first and / or second engaging segments 114, 115 are relatively short. The first engaging segment 114 may clamp only the edge portion 322 corresponding to the lower edge, while the second engaging segment 115 may clamp only the edge portion 322 corresponding to the upper edge. The protrusion height of the second connecting portion 320 is relatively small relative to the overall dimensions of the connector. In some alternative embodiments, the first connecting portion may be a complete cylindrical structure, and the second connecting portion 320 may be considered a structure configured to conform to the outer contour of the first connecting portion 310, so that the radial dimension of the portion where the second connecting portion 320 and the first connecting portion 310 conform to each other does not increase significantly. The so-called fitting here can be that the two adjacent surfaces are in contact with each other (but can be separated by external force, such as being separated by the insertion of the joining segment), or that the two adjacent surfaces have a small distance, thereby allowing the first joining segment to be inserted.

[0091] Through this connection method, the second connecting portion 320 of the connector 300 is clamped between the first and second connecting segments 114, 115, and the coating 120, effectively pressing the second connecting portion 320 against the surface of the cylindrical body 110. The stent 100 and the wireless sensor 200 are connected together in a parallel and circumferential manner. Furthermore, the first and second connecting segments 114, 115 are also clamped between the wireless sensor 200 and the second connecting portion 320. This connection is simple and reliable, facilitating the assembly and connection of small components such as shunts. Furthermore, the free ends of the first and second connecting segments 114, 115 point in opposite directions, further preventing the second connecting portion 320 from axially dislodging. This connection method, in which the connecting segments on the surface of the stent 100 clamp the sheet structure on the surface of the wireless sensor 200, results in a very small radial dimension, allowing for a tight connection between the wireless sensor 200 and the stent 100 without causing the overall radial dimensions of the implant to become excessively large.

[0092] The shape of the connector 300 is not limited to that described in the aforementioned embodiment, as long as the first connector 310 can be fixedly connected to the wireless sensor 200 and the second connector 320 connects the first connector to the joint section of the cylindrical body 110. Therefore, the first connector 310 can also be a ring-shaped structure with an opening to enclose the wireless sensor 200; or a closed or open box-shaped structure that matches the shape of the wireless sensor 200 and can accommodate the wireless sensor 200; or a structure that is adapted to fit the connected portion of the wireless sensor 200, such as a snap-fit, threaded, or adhesive surface structure (of course, the wireless sensor itself must be provided with a corresponding slot, threaded, or adhesive surface structure); and the second connector 320 can be an arched structure or a cantilever structure that can be clamped by the joint section.

[0093] Preferably, the connector 300 is a sleeve, a portion of which is the first connecting portion and the other portion is the second connecting portion. When the connector 300 and the wireless signal transmission element 220 at least partially overlap in the axial direction, the connector 300 is a non-metallic sleeve, and the cross-section of the non-metallic sleeve is a closed structure (for example, an O-shaped structure) or an open structure (for example, a C-shaped structure). In this way, the connector 300 itself can be prevented from affecting signal transmission; or the annular sleeve is a metal sleeve, and the cross-section of the metal sleeve is an open structure, which can also prevent the connector 300 itself from affecting signal transmission. When the connector 300 and the wireless signal transmission element 220 do not overlap at all in the axial direction, there is no restriction on the material of the connector 300.

[0094] Referring to FIG. 12 , the implant is shown when installed at the target site. The target site m1 is a hole connecting the left atrium and the right atrium. The implant is inserted into the hole as a whole and clamped to the atrial septum tissue by the first clamping arm 112 and the second clamping arm 113 to prevent the implant from axially dislodging from the target site m1. The detection element 210 is located in the left atrium and can detect the blood pressure in the left atrium. When the left atrium contracts, in addition to entering the left ventricle, a portion of the blood flow therein enters the right atrium through the lumen of the stent 100. Wireless sensor 200 is disposed side by side outside stent 100, thereby preventing obstruction of blood flow within the lumen or at either end of stent 100. Stent 100 lacks a physical structure surrounding wireless sensor 200, and the physical structure enclosing opening 130 lacks a circumferentially closed loop structure within at least one axial region, thus preventing obstruction of wireless signal transmission. Wireless sensor 200 can be installed side by side with stent 100 in the atrial septal foramen, eliminating the excessive atrial space occupied by conventional axial serial connections. Connector 300, tightly coupled to the joint section of stent 100, allows stent 100 and wireless sensor 200 to rest tightly against each other, enhancing the strength of their connection while reducing their radial dimensions, facilitating transvascular implantation.

[0095] Refer to Figures 7 and 8. Figure 7 is a schematic diagram of the implant according to the aforementioned embodiment, shown in a compressed state within a delivery tube. Figure 8 is a schematic diagram of the axial profile projection of the delivery tube and implant shown in Figure 7. The implant's stent 100 is formed from elastic curved segments, allowing it to deform under external compressive force and return to its original shape upon removal of the force. The implant and the delivery tube used in interventional surgery form an implant system.

[0096] In the implant, the elastic curved segment forms the main body of the stent 100, giving the stent 100 its overall elasticity. When the wireless sensor 200 applies pressure to the stent 100 along the line connecting their centers, the stent 100 is compressed. Specifically, the stent 100 is resiliently deformed in a first radial direction within the confined space (the radial dimension in the direction of the applied force decreases, while the radial dimension perpendicular to the direction of the applied force increases; the "first radial direction" herein refers to the radial direction aligned with the direction of the applied force). This allows the wireless sensor 200 to partially embed within the recessed area of ​​the stent 100. Once the external force is removed, the stent 100 returns to its original shape and resumes its positional relationship with the wireless sensor 200. During the placement of the implant into delivery tube 400, the tube wall exerts pressure on stent 100 and wireless sensor 200 both along the line connecting the centers of wireless sensor 200 and stent 100 and in a radial direction perpendicular thereto. This compresses stent 100 radially into a C-shaped projection of its axial profile, while wireless sensor 200 partially embeds within the recessed portion of stent 100. "Axial projection" refers to the profile image projected from the axial direction of an object. Furthermore, first clamping arm 112 and second clamping arm 113 are compressed along their longitudinal cross-section to align with the surface of stent 100, with the free ends of first clamping arm 112 and second clamping arm 113 converging toward the ends of stent 100. After placement into delivery tube 400, the implant's overall radial dimensions are compressed. This compression deformation occurs by flattening the cylindrical body, while maintaining its circumference. This radial dimension reduction, rather than through axial elongation, results in no significant change in the implant's axial dimensions. An implant with a shorter length is more conducive to the bending of the delivery tube 400 and is conducive to the convenience of the implantation process.

[0097] Referring to Figures 9 to 12 , the surgical procedure for implanting a shunt at a target site via an interventional catheter is illustrated. Figure 9 is a schematic diagram of a delivery tube 400 containing an implant reaching the target site m1. Figure 10 is a schematic diagram of an implant extending from one end of the delivery tube 400 and the first clamping arm 112. Figure 11 is a schematic diagram of the delivery tube 400 being withdrawn so that the first clamping arm 112 of the implant reaches the surface of the atrial septum m2. Figure 12 is a schematic diagram of the delivery tube 400 being removed so that the implant is installed at the target site m1.

[0098] One end of the delivery tube 400 containing the implant enters the right atrium through a larger blood vessel in the human body and enters the left atrium through an aperture in the atrial septum m2. At this point, the implant is protruded from the distal end of the delivery tube 400 by withdrawing the delivery tube or pushing the implant outward, allowing the first clamping arm 112 to expand into a cantilevered position. After the first clamping arm 112 is expanded, the implant's overall radial dimension is larger than the diameter of the aperture in the atrial septum m2. The delivery tube is then withdrawn, and the implant moves with the catheter until the first clamping arm 112 contacts the atrial septum m2. Further withdrawal of the delivery tube 400 will cause the implant to remain in this position due to obstruction by the atrial septum m2 and will not be withdrawn with the delivery tube 400. Once the implant is completely free of the delivery tube 400, the second clamping arm 113 will also expand. Together with the first clamping arm 112, the second clamping arm 113 and the first clamping arm 112 will secure the stent 100 and wireless sensor 200 within the aperture in the atrial septum m2. The stent 100 radially returns to its original shape, and its lumen allows blood flow from the left atrium to enter the right atrium. After the stent 100 is in place, the detection element 210 of the wireless sensor 200 can monitor the blood pressure of the left atrium in real time and transmit the relevant information to an external receiving device via the wireless signal transmission element 220.

[0099] Refer to Figures 13 and 14. Figure 13 is a schematic diagram of the structure of an implant according to another embodiment of the present disclosure. Figure 14 is a schematic diagram of the axial profile projection of the implant shown in Figure 13 within a delivery tube. In this embodiment, the cylindrical body 110a of the implant has the same structure as the cylindrical body 110 in the previous embodiment. The wireless sensor 200a is located within and inscribed within the cylindrical body 110a. When the implant is compressed within the delivery tube 400, a portion of the cylindrical body 110a completely encloses the wireless sensor 200a, while the remaining portion folds around the outside of the wireless sensor 200a.

[0100] It should be understood that although Figures 2 through 6 illustrate the wireless sensor 200 being disposed on the exterior of the cylindrical body 110, when the wireless sensor 200 is disposed within the cylindrical body 110, the connector and joint section shown in Figures 2 through 6 can also be used to secure the wireless sensor 200 to the cylindrical body 110. The covering 120 can be disposed on the exterior of the cylindrical body 110 or on both the interior and exterior of the cylindrical body 110. When a portion of the covering 120 is disposed on the interior of the cylindrical body 110, the joint section can pass through the covering 120 and connect to the connector.

[0101] Refer to Figures 15 and 16. Figure 15 is a schematic structural diagram of an implant according to another embodiment of the present disclosure. Figure 16 is a schematic structural diagram of the axial profile projection surface of the implant in Figure 15 located within the delivery tube. In this embodiment, the cylindrical body 110b of the implant has the same structure as the cylindrical body 110 in the aforementioned embodiment, and the wireless sensor 200b is located inside the cylindrical body 110b and is coaxially arranged with the cylindrical body 110b. The wireless sensor 200b is connected to the cylindrical body 110b by a plurality of limiting wires 300b. The limiting wires 300b can be made of metal or polymer material. The limiting wires 300b can be combined with the cylindrical body 110b by knotting, bonding or spot welding. The limiting wires 300b can also be combined with the pressure monitoring device 200b in the above manner, but the combination method is not limited to the above example. When the implant is compressed in the delivery tube 400 , the cylindrical body 110 b is squeezed between the delivery tube 400 and the wireless sensor 200 b to form a structure having a wavy annular axial profile projection surface.

[0102] Refer to Figures 17 to 21. Figure 17 is a schematic diagram of the structure of an implant according to another embodiment of the present disclosure. Figure 18 is a schematic diagram of the structure of the stent of the implant in Figure 17 omitting the wireless sensor. Figure 19 is a schematic diagram of the axial profile projection surface structure of the stent in Figure 17 in a first state. Figure 20 is a schematic diagram of the axial profile projection surface structure of the implant in Figure 17 in a second state. Figure 21 is a schematic diagram of the axial profile projection surface structure of the implant in Figure 17 when it is located in a delivery tube.

[0103] In this embodiment, the support of the implant includes a cylindrical body 110c, a first clamping arm 112c and a second clamping arm 113c. The cylindrical body 110c is an open-loop cylindrical structure having a C-shaped axial profile projection surface, which is formed by winding a mesh formed by weaving metal wire. The unfolded form of the mesh is rectangular, and its two opposite edge portions are the first end 133c and the second end 134c. The first end 133c and the second end 134c of the mesh are not joined, and an opening 130c is formed therebetween. The two ends of the opening 130c are a first open end 131c and a second open end 132c, that is, the opening 130c can be regarded as a straight-line gap that passes through the circumferential surface of the cylindrical body 110c in a direction parallel to the axial direction.

[0104] When the cylindrical body 110c is compressed, the first end 133c can be wound into the interior of the cylindrical body from the inside of the second end 134c, thereby reducing the compressed volume of the cylindrical body 110c. The diameter of the cylindrical body 110c in the working state can be adjusted according to the size of the target site m1. For example, taking the target site as the atrial septal foramen, when the aperture is small, the diameter of the cylindrical body 110c can be expanded or self-expanded to the aperture size, as shown in Figure 19. In this case, the first end 133c and the second end 134c are radially offset, and the second end 134c overlaps with the rest of the cylindrical body 110c. In this case, the coating 120 is disposed on the inside and outside of the cylindrical body 110c to insulate the second end 134c from the rest of the cylindrical body 110c. When the aperture is large, the diameter of the cylindrical body 110c can also be expanded or self-expanded to the aperture size, as shown in Figure 20. In this case, the first end 133c and the second end 134c are circumferentially offset to form a certain distance. When a balloon-expandable structure is used to implement this embodiment, the cylindrical body 110c and the tissue at the target site m1 can be expanded simultaneously to the desired diameter through balloon post-expansion. When a self-expandable structure is used to implement this embodiment, the tissue at the target site can be pre-expanded with a balloon, and then the cylindrical body 110c can be placed and expanded to the desired size.

[0105] As shown in Figure 21, during compression, the mesh can be rolled up and compressed in a reel-like manner. That is, the first end 133c of the mesh enters the cylindrical body from the inside of the second end 134c and is wound several times around the center. At this point, the wireless sensor 200c is located outside the rolled cylindrical body 110c, and the two are positioned side by side within the delivery tube 400.

[0106] Referring to Figure 22, Figure 22 is a schematic diagram of the axial profile projection structure of the implant when located within the delivery tube in an optional embodiment. In this embodiment, wireless sensor 200d is located within the interior of cylindrical body 110d in the stent, with the two being in an inscribed relationship. Cylindrical body 110d has the same structure as cylindrical body 110d shown in Figure 17. When compressing the implant, the mesh can be wound and compressed in a spooled manner, i.e., the first end 133d of the mesh enters the cylinder from the inside of the second end 134d and is wound several times around the center. Furthermore, wireless sensor 200d is wound within the cylinder, such that the wound cylinder and wireless sensor 200d are substantially coaxially arranged.

[0107] Referring to Figure 23, Figure 23 is a schematic diagram of the structure of the cylindrical body of an implant according to another embodiment of the present disclosure. In this embodiment, the cylindrical body 110e is a cylindrical body formed by winding a mesh formed by weaving metal wire. The cylindrical body is an open-loop cylindrical structure with a C-shaped axial profile projection surface. The first end 133e and the second end 134e of the mesh are not joined, and an opening 130e is formed between them. The edges of the first end 133e and the second end 134e are curved, so the opening 130e is a wave-shaped gap that axially penetrates the circumferential surface of the cylindrical body 110e.

[0108] It can be understood that in other embodiments, the opening 130c may not be parallel to the axial direction of the cylindrical body 110c. For example, the unfolded shape of the mesh is a parallelogram rather than a rectangle. In other embodiments, the cylindrical body 110c can be directly woven out of metal wire using a weaving process or directly cut out of a metal tube using a cutting process, and an opening is reserved. The opening extends along the cylindrical wall of the cylindrical body 110c but does not pass through the cylindrical body 110c. As long as the sensor is arranged in the area where the opening is located, the signal interference of the cylindrical body 110c to the sensor can also be reduced.

[0109] In the above embodiment, the cylindrical body has a cylindrical structure. In other embodiments, the cylindrical body may also have other structures. Referring to Figures 24a to 24e, the cylindrical body in this embodiment shows some optional implementations of the cylindrical body of the bracket.

[0110] Figure 24a is a schematic diagram of the longitudinal profile projection surface shape of the bracket in an optional embodiment. In this embodiment, the diameter of the middle part of the bracket is smaller than the diameter of the two ends, forming an X-shaped projection surface shape. Figure 24b is a schematic diagram of the longitudinal profile projection surface shape of the bracket in another optional embodiment. In this embodiment, the upper section of the bracket is trumpet-shaped, and the lower section is straight-cylinder-shaped, forming a Y-shaped projection surface shape. Figure 24c is a schematic diagram of the longitudinal profile projection surface shape of the bracket in another optional embodiment. In this embodiment, the diameter of one end of the bracket is larger than the diameter of the other end, and the diameter of the cylinder changes linearly in the axial direction, forming a V-shaped projection surface shape. Figure 24d is a schematic diagram of the longitudinal profile projection surface shape of the bracket in another optional embodiment. In this embodiment, the diameters of the two ends of the bracket are different from the diameter of the middle part, and the centers of the two ends are not coaxial with the center of the middle part, and the bracket has a K-shaped projection surface shape. Figure 24e is a schematic diagram of the longitudinal profile projection surface shape of the bracket in another optional embodiment. In this embodiment, the bracket as a whole is Z-shaped. "Longitudinal profile projection surface" refers to the contour image obtained by projecting from the longitudinal direction of the object.

[0111] It can be understood that in the above-mentioned embodiments, the stent can also be separated from the sensor as an independent implant. Since there is an opening in the stent itself, there is no closed-loop metal ring structure in at least a part of the area. Therefore, whether the sensor or other electronic device is implanted before the stent, after the stent, or at the same time as the stent near the area, the interference of the stent on the wireless signal can be avoided or reduced. In the preferred embodiment, the openings are distributed over the entire length of the tubular body, so as to further improve the flexibility of the relative position of the sensor or other electronic device and the stent and reduce the effect of signal interference. When the opening divides the tubular body into an open-loop structure with a C-shaped axial profile projection surface, the diameter of the tubular body can also be adaptively adjusted according to the aperture of the target part, thereby solving the problem in the prior art that the size of the shunt does not match the target part, resulting in complicated surgical operation or poor surgical effect.

[0112] The present disclosure also provides an implant system. The implant system includes a delivery catheter and an implant. The delivery catheter is used to accommodate the compressed implant and deliver the implant to the target site via an artificial or natural chamber / duct. The implant may include a stent and a wireless sensor. The stent may be a shunt such as the one used for atrial shunt surgery in the aforementioned embodiment, or an occluder or a vascular stent. The implant is in a compressed state within the delivery catheter. For the specific compression state, please refer to the illustrations and descriptions of the implant in the delivery tube in the aforementioned embodiment. When the delivery catheter delivers the implant to the target site, the implant can be pushed out of the catheter through the inner catheter.

[0113] In some optional embodiments, the implant system further includes a signal receiving device for receiving signals from wireless sensors in the implant, so as to allow medical personnel to track changes in physiological parameters of the organism in real time.

[0114] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. An implant for implantation into a target site in a living body, characterized in that: include: The stent is used to be arranged at the target site to improve the physiological function of the organism. The stent includes a cylindrical body made of metal material. The circumference of the cylindrical body is provided with openings, and the openings extend and are distributed over at least a part of the length of the cylindrical body.

2. The implant according to claim 1, characterized in that The opening has at least a first open end.

3. The implant according to claim 2, characterized in that The openings are distributed throughout the entire length of the cylindrical body and also have a second open end.

4. The implant according to any one of claims 1 to 3, characterized in that The opening extends on the circumferential surface of the cylindrical body in a spiral, straight or wavy form.

5. The implant according to claim 4, characterized in that When the opening extends in a spiral form on the circumference of the cylindrical body, it extends at least twice around the circumference of the cylindrical body.

6. The implant according to claim 5, characterized in that The cylindrical body is formed by spirally winding an elastic curved segment, and the gap between two adjacent turns of the elastic curved segment forms the opening.

7. The implant according to claim 6, characterized in that The elastic curved section is a metal wire or a metal strip cut from a metal piece.

8. The implant according to claim 6 or 7, characterized in that The elastic curve section extends from a starting position in a circular form in the circumferential direction for one circle, then extends upward in a spiral form for one or more circles, and then extends in a circular form for another circle, thereby forming the cylindrical body.

9. The implant according to claim 8, characterized in that The elastic curve section is wavy.

10. The implant according to claim 4, characterized in that The opening divides the cylindrical body into an open-loop structure having a C-shaped axial profile projection surface, and the open-loop structure has a first end and a second end opposite to each other.

11. The implant according to claim 10, characterized in that In a working state, the first end portion and the second end portion are not in contact with each other, or are offset in a circumferential direction or a radial direction.

12. The implant according to claim 11, characterized in that The cylindrical body has a mesh structure, which is woven from metal wires or cut from metal pieces.

13. The implant according to any one of claims 10 to 12, characterized in that When the open-loop structure is compressed, a stacked structure having a spiral axial profile projection surface is formed, and the first end portion is wound from the inner side of the second end portion toward the center.

14. The implant according to any one of claims 1 to 13, characterized in that It also includes a wireless sensor, which includes a detection element and a wireless signal transmission element. The detection element is used to obtain target physiological parameters, and the wireless signal transmission element is used to transmit the target physiological parameters obtained by the detection element to the outside of the biological body.

15. The implant according to claim 14, characterized in that In a working state, the wireless sensors are located outside the cylindrical body, and when the cylindrical body is compressed, the wireless sensors are located side by side outside the cylindrical body.

16. The implant according to claim 14, characterized in that In a working state, the wireless sensor is located inside the cylindrical body, and when the cylindrical body is compressed, the wireless sensor is located inside the cylindrical body.

17. The implant according to any one of claims 14 to 16, characterized in that The wireless sensor further comprises a shell, wherein the detection element is located at one end of the shell and protrudes a predetermined distance relative to the cylindrical body along the length direction of the shell.

18. The implant according to any one of claims 1 to 17, characterized in that The bracket also includes a clamping arm group, which includes at least a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are distributed on the outer periphery of the cylindrical body at intervals along the axial direction of the cylindrical body, and the first clamping arm and the second clamping arm each form a cantilever protruding from the outer periphery of the cylindrical body.

19. The implant according to claim 18, characterized in that The first clamping arm and / or the second clamping arm are formed by bending an elastic metal wire or a metal strip.

20. The implant according to claim 18 or 19, characterized in that The first clamping arm and / or the second clamping arm has a U-shaped or V-shaped structure formed by an elastic metal wire or metal strip extending radially for a predetermined distance and then folding back.

21. The implant according to any one of claims 18 to 20, characterized in that The first clamping arm and / or the second clamping arm are integrally formed with the cylindrical body.

22. The implant according to any one of claims 1 to 21, characterized in that The support further comprises a coating, which is applied on the inner side and / or the outer side of the cylindrical body and is made of an insulating material.

23. An implant according to any one of claims 1 to 21, characterized in that The implant further comprises a wireless sensor and a connector. The bracket and the wireless sensor are arranged in parallel, and the wireless sensor is connected to the joint section of the bracket through the connector. The joint section is integrally formed with the cylindrical body.

24. The implant according to claim 23, characterized in that The joining section includes a first joining section and a second joining section, the connecting member includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the wireless sensor, and the second connecting portion includes a sheet portion, and the sheet portion is clamped by the first joining section and the second joining section.

25. The implant according to claim 24, characterized in that The free ends of the first engaging section and the second engaging section point in opposite directions.

26. An implant system, comprising a delivery catheter and an implant, characterized in that: The implant is the implant according to any one of claims 1 to 25, and is in a compressed state when disposed in the catheter, and the implant can be extended from the catheter.

27. The implant system according to claim 26, characterized in that The cylindrical body is compressed into a structure whose axial profile projection surface is C-shaped, spiral-shaped or wavy-line closed loop.

28. The implant system of claim 27, wherein: When the cylindrical body is compressed into a C-shaped structure with an axial profile projection surface, the outer surface of the compressed cylindrical body at least partially surrounds the wireless sensor.

29. The implant system of claim 27, wherein: When the cylindrical body is compressed into a structure whose axial profile projection surface is in a spiral shape, the wireless sensors are located side by side outside the cylindrical body, or the wireless sensors are located inside the cylindrical body.

30. The implant system of claim 27, wherein: When the cylindrical body is compressed into a structure whose axial profile projection surface is a wavy closed loop, the wireless sensor is located inside the cylindrical body.

31. An implant system according to any one of claims 26 to 30, characterized in that It also includes a signal receiving device, which is used to transmit signals to the wireless sensor in the implant.

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