Delivery apparatus and medical system

Abstract

This invention relates to the field of medical device technology and discloses a delivery device. The delivery device includes a base, a sheath assembly disposed on the base, the sheath assembly including an adjustable bending sheath, the proximal end of which is fixed to the base, and the distal end of which has a bendable portion. A bending control assembly is disposed on the base to control the bending of the bendable portion. An audible alarm assembly includes a oscillating element and a reducing element. When the bendable portion approaches a preset angle, the oscillating element contacts the reducing element to emit an alarm sound. This allows the operator to accurately judge the degree of bending of the bendable portion, ensuring the normal operation of the delivery device, improving its safety, and preventing medical accidents. This invention also discloses a medical system.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a delivery device and a medical system. Background Technology

[0002] Blood flows from the atria to the ventricles of the heart, with valves between the atria and ventricles preventing backflow. However, these valves can malfunction or deteriorate due to congenital or acquired factors. For example, the valve between the left atrium and left ventricle is called the mitral valve. When the mitral valve malfunctions, blood from the left ventricle flows back into the left atrium during systole, a condition known as mitral regurgitation. This condition is typically treated surgically, one procedure involving directly suturing the mitral valve leaflets to each other (called the "Alfieri suture"). This method is extremely difficult and prone to complications. Currently, minimally invasive interventional techniques and related devices have been developed to treat this condition. Specifically, the transseptal technique involves inserting a catheter into the right femoral vein, ascending along the inferior vena cava, and into the right atrium. The right atrial septum is then punctured to insert the catheter into the left atrium. This technique delivers leaflet clips to the heart, clamping them at the junction of the mitral valve leaflets and holding them together to mimic the "Alfieri suture."

[0003] Currently, such devices are becoming increasingly popular both domestically and internationally. The most typical product is the MitraClip (mitral valve clip), whose delivery system includes an adjustable bending sheath and a bending control device. By adjusting the different bending angles at the end of the adjustable bending sheath, the leaflet is clipped to the appropriate position in the heart.

[0004] However, during implantation surgery, the degree of bending at the end of the adjustable sheath in existing delivery systems needs to be determined using imaging methods such as ultrasound and X-rays. However, using imaging to determine whether the bending angle of the adjustable sheath has reached its limit is not precise or reliable enough. Therefore, the operator may apply excessive force when rotating the adjustment handle, potentially causing the sheath control wire to break and resulting in a medical accident. Summary of the Invention

[0005] The purpose of this invention is to provide a conveying device and a medical system that allows the operator to accurately judge the degree of bending of the flexible part, ensure the normal use of the conveying device, improve the safety of the conveying device, and prevent medical accidents.

[0006] To address the aforementioned technical problems, a first aspect of the present invention provides a conveying device, comprising:

[0007] A base; a sheath assembly disposed on the base, the sheath assembly including an adjustable bending sheath, the proximal end of the adjustable bending sheath being fixed to the base, and the distal end of the adjustable bending sheath having a bendable portion; a bending control assembly disposed on the base, the bending control assembly being used to control the bending of the bendable portion; and an audible alarm assembly, the audible alarm assembly including a waving element and a reducing element, wherein when the bendable portion approaches a preset angle, the waving element contacts the reducing element to emit an alarm sound.

[0008] The second light-emitting surface of the present invention provides a medical system, comprising:

[0009] An implantable prosthesis and a delivery device as described in the first aspect, wherein the implantable prosthesis is detachably connected to the flexible portion, or the implantable prosthesis is carried on the flexible portion.

[0010] A third aspect of the present invention provides a medical system comprising:

[0011] An actuator and a conveying device as described in the first aspect, wherein the actuator is connected to the flexible portion.

[0012] Compared with related technologies, the embodiments of the present invention include a base, a sheath assembly, a bending control assembly, and an audible alarm assembly disposed on the base. The sheath assembly includes an adjustable bending sheath, the proximal end of which is fixed to the base, and the distal end of which has a bendable portion. The bending control assembly is used to control the bending of the bendable portion. The audible alarm assembly includes a undulating element and a reducing element. When the bendable portion approaches a preset angle under the control of the bending control assembly, the undulating element contacts the reducing element to emit an alarm sound. In this way, the alarm sound emitted by the audible alarm assembly allows the operator to accurately judge the degree of bending of the bendable portion, ensuring the normal use of the conveying equipment, improving the safety of the conveying equipment, and preventing medical accidents.

[0013] Optionally, the bending control component, while controlling the bending of the bendable portion, also causes relative movement between the undulating member and the variable diameter member. When the bending control component controls the bending of the bendable portion, it also causes relative movement between the undulating member and the variable diameter member. This ensures a correlation between the stroke of the relative movement between the undulating member and the variable diameter member and the bending angle of the bendable portion, ensuring that when the bendable portion approaches a preset angle, an alarm sound emitted by the undulating member and the variable diameter member due to their relative movement alerts the operator.

[0014] Optionally, the oscillating component includes an oscillating column, and the variable diameter component includes a variable diameter section. When the bending angle of the bendable portion is not close to a preset angle, the oscillating column is adjacent to the variable diameter section; when the bendable portion approaches the preset angle, the oscillating column contacts the variable diameter section to emit an alarm sound. The oscillating component includes an oscillating column, and the variable diameter component includes a variable diameter section. When the bendable portion is not close to the preset angle, the oscillating column is adjacent to the variable diameter section; when the bendable portion approaches the preset angle, the oscillating column contacts the variable diameter section to emit an alarm sound. By providing a variable diameter section at a specific location on the variable diameter component, when the bendable portion bends to the preset angle, the oscillating column and the variable diameter section interact to emit an alarm sound; when the bendable portion does not reach the preset angle, the oscillating column will not interact with the variable diameter section, and no alarm sound will be emitted, thus avoiding interference with the operator.

[0015] Optionally, the variable diameter component preferably includes a smoothing portion for connecting the variable diameter component and adjacent to the wave column.

[0016] Optionally, the variable diameter section includes a first variable diameter section and a second variable diameter section, which are arranged at intervals. When the flexible section bends in a first direction and approaches a first preset angle, the oscillating column contacts the first variable diameter section. When the flexible section bends in a second direction and approaches a second preset angle, the oscillating column contacts the second variable diameter section. The first and second directions are opposite. The variable diameter section includes a first variable diameter section and a second variable diameter section arranged at intervals. When the flexible section bends in the first direction and approaches the first preset angle, the oscillating column contacts the first variable diameter section to emit a warning sound. When the flexible section bends in the second direction and approaches the second preset angle, the oscillating column contacts the second variable diameter section to emit a warning sound. In this way, when the flexible section bends in different directions, and when the flexible section approaches a preset angle in each bending direction, there is a corresponding variable diameter section that can interact with the oscillating column to emit a warning sound. This ensures that when the operator bends the flexible section in different directions, a warning sound will alert the operator, preventing the operator from using excessive force and causing the flexible section to break.

[0017] Optionally, the oscillating component further includes a resilient connecting portion. The variable diameter portion includes a body portion and protruding portions. There are multiple protruding portions, which are sequentially disposed on the body portion. The body portion is adjacent to the oscillating column, and the protruding portions abut against the oscillating column. When the oscillating column abuts against one of the protruding portions, as the oscillating component and the variable diameter component move relative to each other, the connecting portion deforms to allow the oscillating column to pass over the protruding portion. After the connecting portion returns to its shape, the oscillating column abuts against another of the protruding portions and emits an alarm sound. The oscillating component includes a flexible connecting part and a variable diameter part including a main body and protruding parts. The protruding parts are multiple and spaced apart on the main body. When the flexible part approaches a preset angle, the oscillating column abuts against one of the protruding parts. As the flexible part continues to bend, the oscillating column continues to move relative to the protruding parts. The connecting part is deformed by the action of the protruding parts so that the oscillating column passes over one protruding part. Afterward, the connecting part returns to its shape, the oscillating column abuts against another protruding part and emits an alarm sound. In this way, by utilizing the elasticity of the connecting part, the oscillating column abuts against another protruding part and emits an alarm sound every time it passes over a protruding part. The structure is simple and reliable.

[0018] Optionally, the connecting part is horn-shaped, and the tip of the connecting part is connected to the wave column; or, the connecting part is straight, with one end connected to the wave column. This results in a simple and compact connecting part structure that is easily deformable.

[0019] Optionally, the connecting portion includes a connecting portion body and an extension portion, one end of the extension portion is connected to the connecting portion body and the other end is connected to the wave column, the extension portion at least partially surrounds the connecting portion body, and there is a gap between the connecting portion body and the extension portion, so that the extension portion can move relative to the connecting portion body to generate deformation.

[0020] Optionally, the protrusion is serrated to prevent the undulating member and the reducing member from moving relative to each other in opposite directions. The serrated protrusion ensures that when the undulating column passes a protrusion, the protrusion abuts against the undulating column, preventing it from moving in the opposite direction under force, thus ensuring that the bending of the flexible portion remains under control and avoiding accidents.

[0021] Optionally, multiple protruding portions are spaced apart on the main body. When the bending control component controls the bendable portion to rotate towards a preset angle, the oscillating member moves relative to the diameter-changing member in a preset direction, and the spacing between two adjacent protruding portions decreases along the preset direction. Thus, as the bendable portion approaches the preset angle, the frequency of interaction between the oscillating member and the protruding portions increases, resulting in a higher frequency of warning sounds, allowing the operator to clearly perceive that the bendable portion is approaching the preset angle.

[0022] Optionally, multiple protruding portions are spaced apart on the main body. When the bending control component controls the bendable portion to rotate towards a preset angle, the oscillating member moves relative to the diameter-changing member in a preset direction, and the height of the multiple protruding portions increases progressively along the preset direction. Thus, as the bendable portion approaches the preset angle, the deformation amplitude of the connecting portion gradually increases due to the increasing height of the protruding portions. When the oscillating column crosses one protruding portion, the alarm sound is louder when the oscillating column contacts another protruding portion, allowing the operator to clearly realize that the bendable portion is getting closer to the preset angle.

[0023] Optionally, the undulating member is configured to remain stationary relative to the base, and the variable diameter member is strip-shaped and configured to move relative to the base; the bending control assembly includes a rotating shaft and a gear sleeved on the rotating shaft, the rotating shaft being rotatably disposed on the base, the axis of the rotating shaft being perpendicular to the axis of the adjustable bending sheath, and the rotating shaft and the adjustable bending sheath being staggered; the variable diameter member is meshed with the gear to move under the drive of the gear; the variable diameter member and the gear are configured such that when the bendable portion approaches a preset angle under the control of the bending control assembly, the variable diameter member contacts the undulating member under the drive of the gear to emit an alarm sound.

[0024] Optionally, the oscillating component further includes an elastic connecting portion and a fixing portion, and is kept stationary with the base by means of the fixing portion; the variable diameter component includes a first variable diameter portion and a second variable diameter portion, the first variable diameter portion includes a first body portion and a first protruding portion, the second variable diameter portion includes a second body portion and a second protruding portion, the variable diameter component further includes a first smooth portion, the first smooth portion is connected to the first variable diameter portion and the second variable diameter portion respectively, and the first smooth portion forms a strip with the first body portion and the second body portion, the strip has rack teeth on the side where the first protruding portion and the second protruding portion are opposite, and forms the meshing connection with the gear through the rack teeth; the first body portion, the second body portion and the first smooth portion are all adjacent to the oscillating column, the first protruding portion and the second protruding portion abut against the oscillating column, when the oscillating column abuts against one of the protruding portions, as the relative movement between the oscillating component and the variable diameter component occurs, the connecting portion deforms so that the oscillating column passes over the protruding portion, when the connecting portion returns to its shape, the oscillating column abuts against the other protruding portion and emits an alarm sound.

[0025] Optionally, the variable diameter member is strip-shaped and configured to remain stationary relative to the base, while the undulating member is configured to move relative to the base. The bending control assembly includes a rotating shaft and a gear sleeved on the rotating shaft. The rotating shaft is rotatably disposed on the base, and the axis of the rotating shaft is perpendicular to the axis of the adjustable bending sheath, with the rotating shaft and the adjustable bending sheath being staggered. The undulating member and the gear are meshed together to move under the drive of the gear. The undulating member and the gear are configured such that when the bendable portion approaches a preset angle under the control of the bending control assembly, the undulating member contacts the variable diameter member under the drive of the gear to emit a warning sound.

[0026] Optionally, the oscillating component further includes a flexible connecting portion and a fixing portion. The fixing portion is strip-shaped and connected to the connecting portion on one side opposite to the variable diameter component. On the other side, it has rack teeth and forms a meshing connection with the gear through the rack teeth. The variable diameter component includes a first variable diameter portion and a second variable diameter portion, arranged sequentially along the direction of movement of the oscillating component. The first variable diameter portion includes a first body portion and a first protruding portion, and the second variable diameter portion includes a second body portion and a second protruding portion. The first body portion and the second body portion are adjacent to the oscillating column, and the first protruding portion and the second protruding portion abut against the oscillating column. When the oscillating column abuts against one of the protruding portions, as the oscillating component and the variable diameter component move relative to each other, the connecting portion deforms to allow the oscillating column to pass over the protruding portion. When the connecting portion returns to its shape, the oscillating column abuts against the other protruding portion and emits a warning sound.

[0027] Optionally, the variable diameter section is arc-shaped and configured to remain stationary with respect to the base, while the oscillating member can rotate relative to the variable diameter section. The bending control assembly includes a rotating shaft rotatably disposed on the base, with its axis perpendicular to the axis of the adjustable bending sheath and the rotating shaft and the adjustable bending sheath being staggered. The oscillating member also includes a fixing part sleeved on the rotating shaft, and the fixing part is connected to the oscillating column via the connecting part. When the bendable section approaches a preset angle under the control of the bending control assembly, the oscillating member contacts the oscillating member under the drive of the rotating shaft to emit an alarm sound.

[0028] Optionally, the undulating member includes a fixed part and remains stationary with the base through the fixed part; the variable diameter part is arc-shaped and can rotate relative to the undulating member; the bending control assembly includes a rotating shaft and a connecting member; the rotating shaft is rotatably disposed on the base, the axis of the rotating shaft is perpendicular to the axis of the adjustable bending sheath, and the rotating shaft and the adjustable bending sheath are staggered; the connecting member is used to connect the rotating shaft to the variable diameter part, driving the variable diameter part to rotate; when the bendable part approaches a preset angle under the control of the bending control assembly, the variable diameter part contacts the undulating member under the drive of the rotating shaft to emit an alarm sound.

[0029] Optionally, the conveying device further includes a housing for accommodating the audible alarm component, with the variable diameter component disposed on the inner wall of the housing. The conveying device also includes a housing for accommodating the audible alarm component, with the variable diameter component disposed on the inner wall of the housing. Thus, the cavity formed by the housing can amplify the alarm sound generated when the oscillating component and the variable diameter component interact, allowing the operator to hear the alarm sound more clearly.

[0030] Optionally, the length of the fixing part and / or the oscillating column in the direction of the rotating shaft axis is greater than the length of the connecting part in the direction of the rotating shaft axis. Having the fixing part longer than the connecting part in the direction of the rotating shaft axis ensures a stable connection between the fixing part and the rotating shaft, preventing displacement or damage to the oscillating column when subjected to the force of the reducing component. Having the oscillating column longer than the connecting part in the direction of the rotating shaft axis ensures that the oscillating column can effectively interact with the reducing component when the bending control assembly drives the oscillating component to rotate, thereby emitting an alarm sound.

[0031] Optionally, the bending control assembly further includes a control wire and a winding wheel. The winding wheel is fixedly sleeved on the rotating shaft. One end of the control wire is fixedly connected to the bendable portion, and the other end of the control wire is wound around the winding wheel. The control wire and the winding wheel are configured such that when the winding wheel is rotated, the control wire causes the bendable portion to bend or return to its original position. The bending control assembly further includes a control wire and a winding wheel. The winding wheel is fixedly sleeved on the rotating shaft. One end of the control wire is fixedly connected to the bendable portion, and the other end of the control wire is wound around the winding wheel. When the winding wheel is rotated, the control wire causes the bendable portion to bend or return to its original position. In this way, when the bendable part bends, the bending angle of the bendable part is directly related to the stroke of the control wire, and the rotation stroke of the winding wheel is related to the formation of the control wire. The winding wheel is sleeved on the rotating shaft, so that the rotation stroke of the winding wheel is consistent with the rotation stroke of the oscillating component. Thus, a corresponding relationship is established between the bending angle of the bendable part and the rotation stroke of the oscillating component. The position of the diameter-changing part can be accurately set on the diameter-changing component, ensuring that when the bendable part approaches the preset angle, the oscillating component and the diameter-changing component interact to emit an alarm sound.

[0032] Optionally, the winding wheel has a receiving groove along its circumference, and the control wire wound on the winding wheel is located in the receiving groove. The receiving groove along the circumference of the winding wheel, with the control wire wound on the winding wheel located in the receiving groove, thus limits the control wire, preventing it from detaching from the winding wheel and causing the conveying equipment to malfunction.

[0033] Optionally, the control wire includes a first control wire and a second control wire. The first control wire controls the flexible portion to bend in a first direction, and the second control wire controls the flexible portion to bend in a second direction, the first direction being opposite to the second direction. The winding wheel includes a first winding wheel and a second winding wheel, which are arranged axially symmetrically about the axis of the adjustable curved sheath. The first control wire winds around the first winding wheel in a third direction, and the second control wire winds around the second winding wheel in a fourth direction, the third direction being opposite to the fourth direction. Furthermore, when the shaft rotates, the changes in the first and second control wires are equivalent. The control wire includes a first control wire and a second control wire. The first control wire controls the flexible portion to bend in the first direction, and the second control wire controls the flexible portion to bend in the second direction, the first direction being opposite to the second direction. The winding wheel includes a first winding wheel and a second winding wheel arranged axially symmetrically about the axis of the adjustable curved sheath. The first control wire winds around the first winding wheel in a third direction, and the second control wire winds around the second winding wheel in a fourth direction, the third direction being opposite to the fourth direction. In this way, when the shaft is rotated in the third direction, the first winding wheel rotates and tightens the first control wire, the second winding wheel releases the second control wire, and the bendable part bends in the first direction. When the shaft is rotated in the fourth direction, the first winding wheel tightens the first control wire, the second winding wheel releases the second control wire, and the bendable part bends in the second direction. The changes in the first and second control wires are equivalent, which can improve the control accuracy of the bending control assembly on the bending angle of the bendable part.

[0034] Optionally, it also includes a sheath mounting base, which is fixedly connected to the base, and the sheath is mounted on the sheath mounting base. Attached Figure Description

[0035] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0036] Figure 1 This is a cross-sectional view of the overall structure of the conveying device according to the first embodiment of the present invention;

[0037] Figure 2 yes Figure 1 An enlarged schematic diagram of the proximal end of the conveying equipment shown;

[0038] Figure 3 This is a schematic diagram of the interaction between the oscillating element and the variable diameter element in the sound alarm assembly when the bendable part is not bent in the first embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram of the cooperation between the oscillating column and the variable diameter component in the sound alarm assembly when the bendable part bends in the first embodiment of the present invention.

[0040] Figure 5 This is a schematic diagram of the structure of a wave element in the sound warning assembly according to the first embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of another type of oscillating element in the sound warning component of the first embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of the structure of another type of oscillating element in the sound warning assembly of the first embodiment of the present invention;

[0043] Figure 8 This is a schematic diagram of the structure of a variable diameter component in the sound warning assembly according to the first embodiment of the present invention;

[0044] Figure 9 This is a schematic diagram of another variable diameter section in the sound warning assembly according to the first embodiment of the present invention;

[0045] Figure 10 This is a schematic diagram of another variable diameter section in the sound warning assembly according to the first embodiment of the present invention;

[0046] Figure 11 This is a schematic diagram of the structure of the housing of the conveying device according to the first embodiment of the present invention;

[0047] Figure 12 This is a schematic diagram of the structure of the variable diameter component disposed on the housing in the sound alarm assembly of the first embodiment of the present invention;

[0048] Figure 13 This is a schematic diagram of another sound warning component and bending control component according to the first embodiment of the present invention;

[0049] Figure 14 yes Figure 13 A schematic diagram of the structure of the sound alarm component after its position has been changed;

[0050] Figure 15 This is a structural schematic diagram of another sound warning component and bending control component according to the first embodiment of the present invention;

[0051] Figure 16 yes Figure 15 A schematic diagram of the structure of the sound alarm component after its position has been changed;

[0052] Figure 17 This is a schematic diagram of a medical system according to the second embodiment of the present invention;

[0053] Figure 18 This is a schematic diagram of a medical system according to the third embodiment of the present invention. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of the present invention to enable the reader to better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0055] In embodiments of the present invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0056] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0057] Furthermore, the terms "installation," "setting," "equipped with," "opening," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0058] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0059] The implementation details of the conveying device according to the first embodiment of the present invention will be described in detail below. The following implementation details are provided for ease of understanding only and are not necessary for implementing this solution.

[0060] The conveying device provided in the first embodiment of the present invention, such as Figures 1 to 4 As shown, it includes: a base 100, a sheath assembly 200, a bending control assembly 300, and an audible alarm assembly 400 disposed on the base 100. The sheath assembly 200 includes an adjustable sheath 210, the proximal end of which is fixed to the base 100, and the distal end of which is provided with a bendable portion 211. The bending control assembly 300 is used to control the bending of the bendable portion 211. The audible alarm assembly 400 includes a waving member 410 and a reducing member 420. When the bendable portion 211 approaches a preset angle under the control of the bending control assembly 300, the waving member 410 contacts the reducing member 420 to emit an alarm sound.

[0061] Compared with related technologies, the first embodiment of the present invention utilizes the alarm sound emitted by the sound alarm component, enabling the operator to accurately determine the degree of bending of the flexible part 211 in the body without relying on diagnostic equipment such as CT or X-ray, ensuring the normal use of the delivery equipment, improving the safety of the delivery equipment, and preventing medical accidents.

[0062] This embodiment does not have any particular limitation on the "preset angle". It can be the maximum bending angle that the bendable part can reach when the bendable part is bent or the control wire is subjected to force to the physical limit, or the product of the maximum bending angle and the safety factor, which is the maximum safe angle, or the angle corresponding to the limit of surgical operation, or the angle corresponding to the specific purpose.

[0063] In some embodiments, the sheath assembly 200 includes a proximal end and a distal end, and an adjustable-bend sheath 210 extends from the proximal end of the sheath assembly 200 to the distal end of the sheath assembly 200, forming an adjustable-bend sheath axis. The proximal end of the adjustable-bend sheath 210 can be rigid to provide support, or it can be flexible to improve compliance, facilitating the insertion of the adjustable-bend sheath 210 into the target position of the human body along the natural cavities. The proximal end of the adjustable-bend sheath 210 can also be partially rigid and partially flexible along the axial direction, thus providing sufficient support while meeting the requirement of extending along the natural cavities of the human body.

[0064] Furthermore, the bendable portion 211 is disposed at the distal end of the adjustable bend sheath 210. The bendable portion 211 can deflect relative to the axis of the adjustable bend sheath, so as to allow for more precise movement or arrangement of the prosthesis or actuator detachably connected to or supported by the bendable portion 211. In this embodiment, there are no particular limitations on the specific structure of the bendable portion 211, as long as the bendable portion 211 can meet the actual needs. For example, the bendable portion 211 can be a tube made of elastic material; for example, the bendable portion 211 can be a mechanical structure with multiple degrees of bending freedom, such as a Hooke's hinge; for example, the bendable portion 211 can also be a bend with a hyaluronic acid tube structure, a corrugated tube structure, etc. In some embodiments, such as Figure 1 As shown, the flexible portion 211 can be bent upwards and / or downwards. In some other embodiments, the flexible portion 211 can be bent to the left and / or right (i.e., perpendicular to the horizontal). Figure 1 (Paper orientation). In some other embodiments, the flexible portion 211 can be bent in other directions.

[0065] Furthermore, the proximal end of the adjustable bend sheath 210 in the sheath assembly 200 is fixed to the base 100. Specifically, the base 100 has an axial through hole for accommodating the adjustable bend sheath 210, through which the adjustable bend sheath 210 passes and is fixedly connected to the base 100. Preferably, the sheath assembly 200 also includes a sheath mounting seat for connecting the adjustable bend sheath 210 and the base 100. The adjustable bend sheath 210 and the base 100 are generally fastened together with screws. The adjustable bend sheath 210 is made of a relatively soft material; without the sheath mounting seat, directly screwing the screws onto the adjustable bend sheath 210 would cause deformation of the adjustable bend sheath 210.

[0066] In this embodiment, the bending control component 300 is used to control the bending or resetting of the bendable portion 211.

[0067] In some embodiments, the bending control assembly 300 includes a rotating shaft 310 and a control wire 320. The rotating shaft 310 is rotatably mounted on the base 100, and its axis is perpendicular to the axis of the adjustable bending sheath 210, with the rotating shaft 310 and the adjustable bending sheath 210 arranged offset from each other. The distal end of the control wire 320 is connected to the bendable portion 211, and the proximal end of the control wire 320 is connected to the rotating shaft 310, for bending or resetting the bendable portion under the drive of the rotating shaft 310. Preferably, the axis of the rotating shaft 310 is parallel to or located in the plane defined by the bending of the bendable portion 211. For example... Figure 1 As shown, the plane formed by the bending of the bendable part 211 is coplanar with the paper surface, and the axis of the rotating shaft 310 is also located on the paper surface.

[0068] In other alternative embodiments, the bending control assembly 300 can also achieve bending or resetting of the bendable portion through other structures. For example, it can be achieved by a shaft 310 driving a gear set or a linkage structure (e.g., a parallelogram structure). These solutions are all within the scope of protection of this invention.

[0069] Please refer to the following for further details. Figure 2 The bending control assembly 300 also includes a winding wheel 330, which is fixedly sleeved on the rotating shaft 310. One end of the control wire 320 is fixedly connected to the bendable part 211, and the other end of the control wire 320 is wound around the winding wheel 330. When the winding wheel 330 is rotated, the control wire 320 causes the bendable part 211 to bend or return to its original position.

[0070] Preferably, the winding wheel 330 has a receiving groove along its circumference, and the control wire 320 wound on the winding wheel 330 is located in the receiving groove. In this way, the receiving groove plays a limiting role for the control wire 320, preventing the control wire 320 from detaching from the winding wheel 330 and causing the conveying equipment to fail.

[0071] Please refer to this again. Figure 2 Specifically, the control wire 320 includes a first control wire 321 and a second control wire 322. The first control wire 321 is used to control the flexible portion 211 to bend in a first direction, and the second control wire 322 is used to control the flexible portion 211 to bend in a second direction, the first direction being opposite to the second direction. Figure 2 In the first direction, the direction is upward, and the direction is downward. The winding wheel 330 includes a first winding wheel 331 and a second winding wheel 332 arranged axially symmetrically along the axis of the adjustable curved sheath 210. The first control wire 321 winds the first winding wheel 331 in a third direction, and the second control wire 322 winds the second winding wheel 332 in a fourth direction. The third direction and the fourth direction are opposite. Thus, when the shaft 310 is rotated in the third direction, the first winding wheel 331 rotates and tightens the first control wire 321, and the second winding wheel 332 releases the second control wire 322, causing the bendable portion 211 to bend in the first direction; when the shaft 310 is rotated in the fourth direction, the first winding wheel 331 tightens the first control wire 321, and the second winding wheel 332 releases the second control wire 322, causing the bendable portion 211 to bend in the second direction. Moreover, the amount of change of the first control wire 321 and the second control wire 322 is approximately equal, which can improve the control accuracy of the bending control assembly 300 in controlling the bending angle of the bendable portion 211.

[0072] It is understood that the first winding wheel 331 is provided with a first receiving groove 331a, and the first control wire 321 wound on the first winding wheel 331 is located in the first receiving groove 331a. The second winding wheel 332 is provided with a second receiving groove 332a, and the second control wire 322 wound on the second winding wheel 332 is located in the second receiving groove 332a.

[0073] Accordingly, the adjustable bendable sheath 210 is provided with a first control wire channel and a second control wire channel symmetrically arranged along the axial direction to accommodate the first control wire 321 and the second control wire 322, respectively. The proximal end of the adjustable bendable sheath 210 is provided with a first window and a second window. The distal end of the first control wire 321 extends proximally from the bendable portion 211 connected thereto, along the first control wire channel, and passes through the first window before winding onto the first winding wheel 331. Similarly, the distal end of the second control wire 322 extends proximally from the bendable portion 211 connected thereto, along the second control wire channel, and passes through the second window before winding onto the second winding wheel 332. Preferably, the first control wire channel and the second control wire channel are located in the plane defined by the bend of the bendable portion 211.

[0074] In this embodiment, while controlling the bending of the bendable portion 211, the bending control component 300 also drives relative movement between the oscillating member 410 and the diameter-changing member 420. This ensures that the movement between the oscillating member 410 and the diameter-changing member 420 is correlated with the bending of the bendable portion 211, ensuring that an alarm sound emitted by the oscillating member 410 and the diameter-changing member 420 alerts the operator when the bendable portion 211 approaches a preset angle. In some embodiments, the bending control component 300 drives the oscillating member 410 to move relative to the diameter-changing member 420. In other embodiments, the bending control component 300 drives the diameter-changing member 420 to move relative to the oscillating member 410.

[0075] Please refer to this as well. Figure 5-7 In some embodiments, the oscillating member 410 includes an oscillating column 411, and the variable diameter member 420 includes a variable diameter portion 421. The oscillating column 411 and the variable diameter portion 421 are configured such that when the bending angle of the bendable portion 211 is not close to a preset angle, the oscillating column 411 is adjacent to the variable diameter portion 421, and when the bendable portion 211 approaches the preset angle, the oscillating column 411 contacts the variable diameter portion 421 to emit an alarm sound.

[0076] Furthermore, combined Figure 8 The oscillating member 410 also includes a resilient connecting portion 412. The variable diameter portion 421 includes a body portion 421a and protruding portions 421b. Multiple protruding portions 421b are sequentially disposed on the body portion 421a, with the body portion 421a adjacent to the oscillating column 411, and the protruding portions 421b abutting against the oscillating column 411. When the oscillating column 411 abuts against one protruding portion 421b, with the relative movement between the oscillating member 410 and the variable diameter member 420, the connecting portion 412 deforms, causing the oscillating column 411 to pass over the protruding portion 421b. When the connecting portion 412 returns to its original shape, the oscillating column 411 also abuts against another protruding portion 421b and emits an alarm sound.

[0077] Please refer to this again. Figure 5 Optionally, the connecting part 412 is in the shape of a straight rod, so that the warning sound can be clearer during rotation.

[0078] Please refer to this again. Figure 6 Optionally, the connecting part 412 may also be horn-shaped, and its tip may be connected to the wave column 411.

[0079] Please refer to this again. Figure 7 In some other embodiments, the connecting portion 412 is configured in a shape similar to a disk, including a connecting portion body 412a and an extension portion 412b. One end of the extension portion 412b is connected to the connecting portion body 412a, and the other end is connected to the wave column 411. The extension portion 412b at least partially surrounds the connecting portion body 412a, and a gap exists between the connecting portion body 412a and the extension portion 412b. At least the extension portion 412b is made of an elastic material, so that the extension portion 412b can move towards the gap 412c under the action of an external force and return to its shape after the force is removed.

[0080] In some embodiments, the bending control assembly 300 drives the undulating member 410 and the diameter-changing member 420 to rotate relative to each other. At this time, the body portion 421a of the diameter-changing section 421 of the diameter-changing member 420 is arc-shaped. Thus, when the bending control assembly 300 drives the bendable portion 211 to bend, it directly drives the undulating member 410 and the diameter-changing member 420 to rotate relative to each other, simplifying the structure and more accurately reflecting the bending amplitude of the bendable portion 211.

[0081] Please refer to Figure 3-11 The bending control assembly 300 drives the undulating member 410 to rotate relative to the variable diameter member 420, while the variable diameter member 420 remains stationary relative to the base 100. This prevents the variable diameter member 420 from shifting due to force applied during its rotation, thus avoiding misalignment of the interaction between the undulating member 410 and the variable diameter member 420 and the bending angle of the flexible portion 211 when the bendable portion 211 approaches a preset angle. This misalignment would prevent accurate warnings to the operator.

[0082] Please refer to this again. Figure 5-7 The oscillating component 410 also includes a fixing part 413, which is fixedly sleeved on the rotating shaft 310. The connecting part 412 is connected to the fixing part 413. When the rotating shaft 310 rotates, it drives the fixing part 413 to rotate, thereby driving the connecting part 412 and the oscillating column 411 to move relative to the variable diameter part 421, and thus emitting an alarm sound.

[0083] Preferably, the length of the wave column 411 and / or the fixing part 413 on the axis of the rotating shaft 310 is greater than the length of the connecting part 412 on the axis of the rotating shaft 310, including: the length of the wave column 411 on the axis of the rotating shaft 310 is greater than the length of the connecting part 412 on the axis of the rotating shaft 310, or the length of the fixing part 413 on the axis of the rotating shaft 310 is greater than the length of the connecting part 412 on the axis of the rotating shaft 310, or the length of the wave column 411 and the fixing part 413 on the axis of the rotating shaft 310 is greater than the length of the connecting part 412 on the axis of the rotating shaft 310.

[0084] More preferably, the lengths of the wave column 411 and the fixing part 413 in the axial direction of the rotating shaft 310 are greater than the lengths of the connecting part 412 in the axial direction of the rotating shaft 310. This ensures that the wave column 411 is securely connected to the rotating shaft 310, and when the bending control assembly 300 drives the wave member 410 to rotate, it ensures that the fixing part 413 can effectively interact with the variable diameter part 421, thereby emitting a warning sound.

[0085] Please refer to this as well. Figure 8-11 In some embodiments, the reducing member 420 is arc-shaped, the undulating member 410 is located inside the reducing member 420, and the bending control assembly 300 drives the undulating member 410 to rotate relative to the reducing member 420. As mentioned above, the reducing portion 421 includes a body portion 421a and protruding portions 421b, with multiple protruding portions 421b sequentially disposed on the body portion 421a. Further, the reducing member 420 also includes a smoothing portion 422, with the body portion 421a connected to the smoothing portion 422. Both the body portion 421a and the smoothing portion 422 are arc-shaped, and the diameter of the body portion 421a is equal to the diameter of the smoothing portion 422. Thus, the reducing member is circular. The body portion 421a of the reducing portion 421 is adjacent to the undulating column 411, and the protruding portion 421b abuts against the undulating column 411. When the wave column 411 abuts against a protrusion 421b, as the wave member 410 rotates relative to the diameter change member 420, the connecting part 412 deforms so that the wave column 411 passes over the protrusion 421b. When the connecting part 412 returns to its shape, the wave column 411 also abuts against another protrusion 421b and emits a warning sound.

[0086] It is understood that in this embodiment, "adjacent" means that there is a gap between the wave column 413 and the body part 421a, or that the wave column 413 slightly contacts the body part 421a without emitting a sound that is perceived by the human ear. As the oscillating member 410 rotates relative to the diameter-changing member 420, the oscillating column 413 faces the smooth portion 422 and the diameter-changing portion 421. When the oscillating column 413 faces the smooth portion 422 (if any), since the oscillating column 413 is adjacent to the smooth portion 422, the two will not contact each other to emit a warning sound. When the oscillating column 413 faces the portion of the diameter-changing portion 421 that does not have a protrusion 421b (if any), since the oscillating column 413 is adjacent to the main body portion 421a, the two will not contact each other to emit a warning sound. When the oscillating column 413 faces the protrusion 421b, it first abuts against one protrusion 421b. As the relative movement between the oscillating member 410 and the diameter-changing member 420 occurs, the connecting portion 412 deforms so that the oscillating column 413 passes over the protrusion 421b. When the connecting portion 412 returns to its shape, the oscillating column 413 abuts against the other protrusion 421b and emits a warning sound.

[0087] Optionally, the protruding portion 421b is serrated. In this way, when the oscillating column 413 passes a protruding portion 421b, the protruding portion 421b abuts against the oscillating column 413, preventing the oscillating column 413 from moving in the opposite direction of the preset direction under force, i.e., preventing the oscillating member 410 from rotating, ensuring that the bending of the bendable portion 211 remains in a controllable state, and avoiding accidents. Preferably, the protruding portion 421b is set as isosceles serrations, so that the resistance to rotation and rotation of the oscillating member 410 is more moderate.

[0088] Please refer to this again. Figures 8 to 10 Furthermore, when the bendable portion 211 has multiple preset angles in different directions, the variable diameter portion 421 may include a first variable diameter portion 421c and a second variable diameter portion 421d, and the smoothing portion 422 may include a first smoothing portion 422a and a second smoothing portion 422b. The first variable diameter portion 421c, the first smoothing portion 422a, the second variable diameter portion 421d, and the second smoothing portion 422b are connected sequentially, and the first variable diameter portion 421c and the second variable diameter portion 421d are arranged opposite to each other. When the bendable portion 211 bends along a first direction and approaches a first preset angle, the wave column 413 contacts the protruding portion of the first variable diameter portion 421c to emit a warning sound; when the bendable portion 211 bends along a second direction and approaches a second preset angle, the wave column 413 contacts the protruding portion of the second variable diameter portion 421d to emit a warning sound. In this way, when the bendable part 211 bends in different directions and approaches the corresponding preset angle, there is a corresponding variable diameter part that can interact with the wave column 413 to emit an alarm sound, ensuring that when the operator bends the bendable part 211 in different directions, there will be an alarm sound to remind the operator to bend.

[0089] Preferably, the first preset angle and the second preset angle are equal.

[0090] Please refer to this again. Figure 9 Taking the first variable diameter section 421c as an example, when the bending control component 300 controls the flexible section 211 to rotate to a preset angle, the wave column 413 moves relative to the first variable diameter section 421c in a preset direction, and the distance between two adjacent protrusions of the first variable diameter section 421c decreases in the preset direction. In this way, the closer the bending of the flexible section 211 is to the preset angle, the higher the frequency of interaction between the wave column 413 and the protrusions of the first variable diameter section 421c, and the higher the frequency of the alarm sound, so that the operator can clearly realize that the flexible section 211 is getting closer and closer to the preset angle.

[0091] Please refer to this again. Figure 10 Furthermore, when the bending control component 300 controls the flexible part 211 to rotate to a preset angle, the wave column 413 moves relative to the first variable diameter part 421c in a preset direction, and the height of the multiple protrusions of the first variable diameter part 421c increases in a preset direction. Thus, as the flexible part 211 gets closer to the preset angle, the deformation amplitude of the connecting part 412 gradually increases due to the increasing height of the protrusions. When the wave column 413 crosses a protrusion, the collision between the wave column 413 and another protrusion becomes stronger, thereby gradually increasing the alarm sound, so that the operator can clearly realize that the flexible part 211 is getting closer and closer to the preset angle.

[0092] Please refer to this as well. Figure 11 The conveying equipment also includes a housing 500 for accommodating the audible alarm component 400. Preferably, see... Figure 12 The reducing element 420 is disposed on the inner wall of the housing 500. In this way, the cavity formed by the housing 500 can amplify the alarm sound generated when the oscillating element 410 and the reducing element 420 interact, so that the operator can hear the alarm sound more clearly.

[0093] It is understandable that the variable diameter component 420 can be integrally formed with the housing 500, or it can be separately prepared from the housing 500 and fixed by means of adhesive, welding or other methods.

[0094] Please refer to this again. Figure 11The conveying device also includes a handle 600, which is fixedly connected to the rotating shaft 310 and located outside the housing 500. This allows the operator to hold the housing 500 while using the conveying device and rotate the handle 600 to drive the first winding wheel 331 and the second winding wheel 332 to rotate. This, in turn, uses the first control wire 321 or the second control wire 322 to bend the flexible part 211 in a specific direction. Understandably, the handle 600 is generally designed to be relatively large. This allows the operator to apply a small force to the handle 600 to generate a large torque, causing the handle 600 to rotate, making operation more effortless.

[0095] In some other embodiments, the bending control assembly 300 drives the variable diameter member to rotate relative to the undulating member. Correspondingly, the undulating member remains stationary relative to the base 100. A further difference from the above embodiments is that the bending control assembly 300 also includes a connector for connecting the rotating shaft 310 to the variable diameter member. The undulating member is fixed to the base 100 or the housing 500 by a fixing part to remain stationary relative to the base 100. Thus, when the rotating shaft 310 rotates, the variable diameter member is driven to rotate via the connector. The undulating column, connecting part, and variable diameter member, which are similar to those in the above embodiments, will not be described again.

[0096] In some other embodiments, the bending control assembly 300 drives relative movement between the undulating member and the diameter-changing member. In this case, the main body of the diameter-changing section of the diameter-changing member is strip-shaped. The strip-shaped diameter-changing member reduces the processing difficulty of the diameter-changing member, thereby reducing the manufacturing difficulty of the conveying equipment.

[0097] Preferably, there are one or more variable diameter sections. When the bending angle of the flexible section 211 is not close to the preset angle, the wave column 413 is adjacent to the variable diameter section and does not make contact. When the flexible section 211 approaches the preset angle, the wave column 413 makes contact with the variable diameter section to emit an alarm sound. When there are multiple variable diameter sections, they are arranged at intervals.

[0098] More preferably, when the bending control assembly 300 controls the bendable portion 211 to rotate to a preset angle, the undulating member 410 moves relative to the diameter-changing member 420 in a preset direction, and the spacing between two adjacent protrusions 421a decreases in the preset direction. When the bending control assembly 300 controls the bendable portion 211 to rotate to a preset angle, the undulating member 410 moves relative to the diameter-changing member 420 in a preset direction, and the height of the plurality of protrusions 421a increases in the preset direction. Further details are omitted.

[0099] In some embodiments, the bending control component 300 can drive the variable diameter member 420 to move relative to the undulating member 410.

[0100] Please refer to this as well. Figures 13-14The difference from the above embodiment is that the undulating member 410 is configured to remain stationary with respect to the base 100 (e.g., fixed to the base 100 by the fixing part 413, or fixed to the housing 500), the variable diameter member 420 is configured to be movable relative to the base 100, and the bending control assembly 300 further includes a gear 340 sleeved on the rotating shaft 310. The variable diameter member 420 and the gear 340 are meshed to form a rack and pinion structure. The variable diameter member 420 and the gear 340 are configured such that when the bendable part 211 approaches a preset angle under the control of the bending control assembly 300, the variable diameter member 420 contacts the undulating member 410 under the drive of the gear 340 to emit an alarm sound. Similarities to the above embodiment will not be repeated.

[0101] For more details, please refer to [the relevant documents / references]. Figure 13 The moving direction of the variable diameter member 420 is perpendicular to the axis of the adjustable curved sheath 210. The variable diameter section 430 includes a first variable diameter section 421c, a second variable diameter section 421d, and a first smoothing section 422a. The first variable diameter section 421c and the second variable diameter section 421d are connected through the first smoothing section 422a, and the body portions of the first variable diameter section 421c and the second variable diameter section 421d, together with the first smoothing section 422a, form a strip-shaped member 432. A rack tooth 431 is provided on the opposite side of the strip-shaped member 432, opposite to the side with the protruding portion. The rack tooth 431 is used to form a meshing relationship with the gear 340. The wave member 410 is disposed at the distal end of the variable diameter member 420, and the wave post 411 is adjacent to the strip-shaped member 432 and contacts the protruding portion. Thus, while the rotating shaft 310 drives the flexible part 211 to bend, it drives the variable diameter member 420 to move relative to the wave member 410 through the meshing relationship between the gear 340 and the rack tooth 431. When the flexible part 211 approaches the preset angle, the variable diameter member 420 contacts the wave member 410 to emit a warning sound.

[0102] Alternatively, such as Figure 14 As shown, with Figure 13 The difference in the embodiment shown is that the moving direction of the variable diameter member 420 is along the axis of the adjustable curved sheath 210, the oscillating member 410 and the rotating shaft 310 are respectively located on one side of the variable diameter member 420, and the oscillating column 411 is adjacent to the fixed plate 432 and in contact with the protruding part.

[0103] In another embodiment, the bending control component 300 can drive the undulating member 410 to move relative to the variable diameter member.

[0104] Please refer to this as well. Figure 15-16As shown, the difference from the above embodiment is that the oscillating member 410 is configured to move relative to the base 100, while the variable diameter member 420 is configured to remain stationary relative to the base 100. The bending control assembly 300 also includes a gear 340 sleeved on the rotating shaft 310. The oscillating member 410 and the gear 340 are meshed to form a rack and pinion structure. The oscillating member 410 and the gear 340 are configured such that when the bendable portion 211 approaches a preset angle under the control of the bending control assembly 300, the oscillating member 410 contacts the variable diameter member 420 under the drive of the gear 340 to emit an alarm sound. Similarities to the above embodiment will not be repeated.

[0105] For details, please continue to refer to [the website / information]. Figure 15 The oscillating member 410 moves perpendicular to the axis of the adjustable curved sheath 210. The fixing portion 413 of the oscillating member 410 is strip-shaped, and a rack tooth 431 is provided on the opposite side of the side connected to the connecting portion 412 for meshing with the gear 340. The variable diameter member 420 is arranged perpendicular to the axis of the adjustable curved sheath 210 and includes a first variable diameter portion 421c and a second variable diameter portion 421d, which extend coaxially. Preferably, the first variable diameter portion 421c and the second variable diameter portion 421d are connected by a first smoothing portion 422a. The variable diameter member 420 is located at the distal end of the oscillating member 410, and the oscillating column 411 is adjacent to the main body and contacts the protruding portion. Thus, while the rotating shaft 310 drives the flexible part 211 to bend, it drives the oscillating member 410 to move relative to the variable diameter member 420 through the meshing relationship between the gear 340 and the rack tooth 431. When the flexible part 211 approaches the preset angle, the oscillating member 410 contacts the variable diameter member 420 to emit a warning sound.

[0106] like Figure 16 As shown, with Figure 15 The difference in the illustrated embodiment is that the oscillating member 410 moves along the axis of the adjustable curved sheath 210, and the variable diameter member 420 is also arranged along the axis of the adjustable curved sheath 210, and is located on one side of the oscillating member 410, respectively, and the oscillating column 411 is adjacent to the fixed plate 432 and in contact with the protruding part. It can be understood that the positions of the oscillating member 410 and the variable diameter member 420 relative to the gear 340 can also be adaptively adjusted. Therefore, the positions of the oscillating member 410 and the variable diameter member 420 are not specifically limited, as long as rotating the rotating shaft 310 can cause the gear 340 to drive the oscillating member 410 to move relative to the variable diameter member 420 and emit an alarm sound.

[0107] A second embodiment of the present invention provides a medical system, such as Figure 17As shown, the device includes an implantable prosthesis 700 and the delivery device of the first embodiment described above. The implantable prosthesis 700 is detachably connected to the flexible portion 211, or the implantable prosthesis 700 is supported on the flexible portion 211.

[0108] Compared to existing technologies, the second embodiment of the present invention utilizes the delivery device provided in the first embodiment to detachably connect to or carry the implanted prosthesis 700. When the rotating handle 600 delivers the implanted prosthesis 700 to the expected position, if the flexible portion 211 approaches a preset angle, the audible alarm component 400 emits an alarm sound to alert the operator. This allows the operator to accurately determine the degree of bending of the flexible portion 211 without relying on diagnostic equipment such as CT scans or X-rays, ensuring the delivery device is used within its normal range, improving the safety of the delivery device, and preventing medical accidents.

[0109] It is understood that this embodiment does not specifically limit the type of implantable prosthesis 700. For example, the implantable prosthesis 700 may be a valve clip for treating valvular regurgitation, a vascular stent for treating vascular stenosis, etc.

[0110] The method of using the medical system provided in this embodiment is as follows:

[0111] Taking the mitral valve clip as an example, the operator detachably connects the mitral valve clip to the flexible part 211, then holds the housing 500 and moves the mitral valve clip toward the desired position. When the mitral valve clip reaches near the atrioventricular orifice, the operator rotates the handle 600. At this time, the winding wheel rotates, and the undulating member 410 also rotates relative to the diameter-changing member 420. For example, the first winding wheel 331 tightens the first control wire 321, and the second winding wheel 332 releases the second control wire 322. At this time, the flexible part 211 bends in the first direction. Under the bending of the flexible part 211, the mitral valve clip is moved to the desired position. During the process of the mitral valve clip reaching the desired position, if the bending angle of the flexible part 211 is close to the preset angle, the undulating member 410 contacts the diameter-changing member 420 and emits an alarm sound. In this way, the operator can determine that the bending angle of the flexible part 211 is close to the preset angle by the alarm sound, and at the same time stop rotating the handle 600, adjust the posture of the conveying equipment in time, and re-control the bending of the flexible part 211 to prevent the flexible part 211 and the control wire from breaking, avoid damage to the conveying equipment, improve the safety of the conveying equipment, and prevent medical accidents.

[0112] A third embodiment of the present invention provides a medical system, such as Figure 18 As shown, the device includes an actuator 800 and the conveying device of the first embodiment described above, with the actuator 800 connected to the flexible portion 211.

[0113] The beneficial effects of the embodiments of the present invention have been demonstrated in the first and second embodiments described above, and will not be repeated here.

[0114] It is understood that this embodiment does not specifically limit the type of actuator. For example, the actuator may be surgical forceps, stapler, surgical scissors, or electrosurgical unit.

[0115] The above provides a detailed description of the delivery equipment and medical system provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the idea of ​​the present invention. There may be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A delivery apparatus, characterized by, include: Base; A sheath assembly disposed on the base, the sheath assembly including an adjustable bendable sheath, the proximal end of the adjustable bendable sheath being fixed to the base, and the distal end of the adjustable bendable sheath having a bendable portion; A bending control component is disposed on the base, and the bending control component is used to control the bending of the bendable part. as well as A sound alarm component, comprising a waving element and a variable diameter element, wherein when the bendable portion approaches a preset angle, the waving element contacts the variable diameter element to emit an alarm sound; The bending control component controls the bending of the bendable part while causing the undulating member and the variable diameter member to move relative to each other. The oscillating component includes an oscillating column, and the variable diameter component includes a variable diameter section; When the bending angle of the flexible part is not close to the preset angle, the wave column is adjacent to the variable diameter part; when the flexible part is close to the preset angle, the wave column contacts the variable diameter part to emit a warning sound. Wherein: the variable diameter section includes a first variable diameter section and a second variable diameter section, the first variable diameter section and the second variable diameter section are arranged at intervals; when the flexible section bends toward a first direction and approaches a first preset angle, the oscillating column contacts the first variable diameter section; when the flexible section bends toward a second direction and approaches a second preset angle, the oscillating column contacts the second variable diameter section; the first direction and the second direction are opposite; and / or, the oscillating member further includes an elastic connecting portion; the variable diameter section includes a body portion and a protruding portion; there are multiple protruding portions, which are sequentially arranged on the body portion, and the body portion is adjacent to the oscillating column; the protruding portions abut against the oscillating column; when the oscillating column abuts against one of the protruding portions, as the oscillating member and the variable diameter member move relative to each other, the connecting portion deforms so that the oscillating column passes over the protruding portion; when the connecting portion returns to its shape, the oscillating column abuts against another of the protruding portions and emits an alarm sound.

2. The delivery apparatus of claim 1, wherein, The variable diameter component also includes a smoothing portion, which is used to connect the variable diameter component and is adjacent to the wave column.

3. The conveying equipment according to claim 1, characterized in that, The connecting part is horn-shaped, and the tip of the connecting part is connected to the wave column; or, the connecting part is straight rod-shaped, with one end connected to the wave column.

4. The conveying device according to claim 1, characterized in that, The connecting part includes a connecting part body and an extension part. One end of the extension part is connected to the connecting part body and the other end is connected to the wave column. The extension part at least partially surrounds the connecting part body, and there is a gap between the connecting part body and the extension part, so that the extension part can move relative to the connecting part body to generate deformation.

5. The conveying device according to claim 1, characterized in that, The protruding portion is serrated to prevent the undulating member and the variable diameter member from moving relative to each other in opposite directions.

6. The conveying device according to claim 1, characterized in that, Multiple protruding portions are spaced apart on the main body. When the bending control component controls the bendable portion to rotate to a preset angle, the undulating member moves relative to the variable diameter member in a preset direction, and the spacing between two adjacent protruding portions decreases in the preset direction.

7. The conveying device according to claim 1, characterized in that, When the bending control component controls the bendable part to rotate to a preset angle, the undulating member moves relative to the variable diameter member in a preset direction, and the height of the plurality of protruding parts is set to increase in a predetermined manner along the preset direction.

8. The conveying device according to claim 1, characterized in that, The undulating member is configured to remain stationary relative to the base, and the variable diameter member is strip-shaped and configured to move relative to the base; The bending control component includes a rotating shaft and a gear sleeved on the rotating shaft. The rotating shaft is rotatably mounted on the base. The axis of the rotating shaft is perpendicular to the axis of the adjustable bending sheath, and the rotating shaft and the adjustable bending sheath are staggered. The variable diameter component meshes with the gear to move under the drive of the gear; The variable diameter component and the gear are configured such that when the bendable portion approaches a preset angle under the control of the bending control assembly, the variable diameter component contacts the oscillating component under the drive of the gear to emit a warning sound.

9. The conveying device according to claim 8, characterized in that, The wave-like component also includes a flexible connecting part and a fixing part, and is kept stationary with the base by means of the fixing part; The variable diameter component includes a first variable diameter portion and a second variable diameter portion. The first variable diameter portion includes a first body portion and a first protruding portion. The second variable diameter portion includes a second body portion and a second protruding portion. The variable diameter component also includes a first smooth portion. The first smooth portion is connected to the first variable diameter portion and the second variable diameter portion respectively. The first smooth portion, the first body portion, and the second body portion form a strip. The strip has rack teeth on the side opposite to the first protruding portion and the second protruding portion, and forms the meshing connection with the gear through the rack teeth. The first body portion, the second body portion, and the first smooth portion are all adjacent to the wave column. The first protruding portion and the second protruding portion abut against the wave column. When the wave column abuts against one of the protruding portions, as the wave member and the diameter-changing member move relative to each other, the connecting portion deforms so that the wave column passes over the protruding portion. When the connecting portion returns to its shape, the wave column abuts against the other protruding portion and emits a warning sound.

10. The conveying device according to claim 1, characterized in that, The variable diameter member is strip-shaped and configured to remain stationary relative to the base, while the undulating member is configured to move relative to the base. The bending control component includes a rotating shaft and a gear sleeved on the rotating shaft. The rotating shaft is rotatably mounted on the base. The axis of the rotating shaft is perpendicular to the axis of the adjustable bending sheath, and the rotating shaft and the adjustable bending sheath are staggered. The oscillating element and the gear are meshed together to move under the drive of the gear; The oscillating element and the gear are configured such that when the bendable portion approaches a preset angle under the control of the bending control assembly, the oscillating element contacts the variable diameter element under the drive of the gear to emit a warning sound.

11. The conveying device according to claim 10, characterized in that, The oscillating component also includes a flexible connecting part and a fixing part. The fixing part is strip-shaped and is connected to the connecting part on one side opposite to the variable diameter component. On the other side, a rack tooth is provided, and the rack tooth forms the meshing connection with the gear. The variable diameter component includes a first variable diameter portion and a second variable diameter portion, which are arranged sequentially along the direction of movement of the wave component. The first variable diameter portion includes a first body portion and a first protruding portion, and the second variable diameter portion includes a second body portion and a second protruding portion. The first body portion and the second body portion are adjacent to the wave column, and the first protruding portion and the second protruding portion abut against the wave column. When the wave column abuts against one of the protruding portions, as the wave member and the diameter-changing member move relative to each other, the connecting portion deforms so that the wave column passes over the protruding portion. When the connecting portion returns to its shape, the wave column abuts against the other protruding portion and emits a warning sound.

12. The conveying device according to claim 1, characterized in that, The variable diameter section is arc-shaped and is configured to remain stationary with respect to the base, while the wave-like component can rotate relative to the variable diameter section. The bending control component includes a rotating shaft, which is rotatably mounted on the base. The axis of the rotating shaft is perpendicular to the axis of the adjustable bending sheath, and the rotating shaft and the adjustable bending sheath are staggered. The oscillating component also includes a fixing part, which is sleeved on the rotating shaft and connected to the oscillating column via the connecting part. When the bendable part approaches a preset angle under the control of the bending control component, the oscillating component contacts the oscillating component under the drive of the rotating shaft to emit an alarm sound.

13. The conveying device according to claim 1, characterized in that, The wave-like component includes a fixed part, which keeps it stationary with the base. The variable-diameter part is arc-shaped and can rotate relative to the wave-like component. The bending control component includes a rotating shaft and a connector. The rotating shaft is rotatably mounted on the base. The axis of the rotating shaft is perpendicular to the axis of the adjustable bending sheath, and the rotating shaft and the adjustable bending sheath are staggered. The connector is used to connect the rotating shaft to the variable diameter component, thereby driving the variable diameter component to rotate. When the bendable part approaches a preset angle under the control of the bending control component, the variable diameter component contacts the oscillating component under the drive of the rotating shaft to emit an alarm sound.

14. The conveying device according to any one of claims 10-12, characterized in that, The conveying device further includes a housing for accommodating the audible alarm component, and the variable diameter component is disposed on the inner wall of the housing.

15. The conveying device according to any one of claims 9, 11-13, characterized in that, The length of the fixing part and / or the wave column in the direction of the rotating shaft axis is greater than the length of the connecting part in the direction of the rotating shaft axis.

16. The conveying device according to any one of claims 9, 11-13, characterized in that, The bending control assembly also includes a control wire and a winding wheel. The winding wheel is fixedly sleeved on the rotating shaft. One end of the control wire is fixedly connected to the bendable part, and the other end of the control wire is wound around the winding wheel. The control wire and the winding wheel are configured such that when the winding wheel is rotated, the control wire causes the flexible portion to bend or return to its original position.

17. The conveying device according to claim 16, characterized in that, The winding wheel has a receiving groove along its circumference, and the control wire wound on the winding wheel is located in the receiving groove.

18. The conveying device according to claim 16, characterized in that, The control wire includes a first control wire and a second control wire. The first control wire is used to control the flexible part to bend in a first direction, and the second control wire is used to control the flexible part to bend in a second direction. The first direction is opposite to the second direction. The winding wheel includes a first winding wheel and a second winding wheel. The first winding wheel and the second winding wheel are arranged axially symmetrically about the axis of the adjustable curved sheath. The first control wire is wound around the first winding wheel in a third direction, and the second control wire is wound around the second winding wheel in a fourth direction. The third direction is opposite to the fourth direction, and when the shaft rotates, the change in the first control wire and the change in the second control wire are equivalent.

19. A medical system, characterized in that, Includes an implantable prosthesis and a delivery device as described in any one of claims 1-18, wherein the implantable prosthesis is detachably connected to the flexible portion, or the implantable prosthesis is carried on the flexible portion.

20. A medical system, characterized in that, It includes an actuator and a conveying device as described in any one of claims 1-18, wherein the actuator is connected to the flexible portion.

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