Interventional heart valve conveying system with positioning function

Abstract

The invention relates to the technical field of heart interventional operations, and discloses an interventional heart valve conveying system with a positioning function, which comprises a working assembly, a control assembly, a support assembly, a positioning assembly, a positioning assembly and a positioning assembly, the working assembly comprises a main sleeve and further comprises a positioning air bag fixedly connected to the main sleeve, a friction ring fixedly connected to the positioning air bag and an internal thread formed in the end of the main sleeve. The positioning air bag on the main sleeve is expanded and unfolded near the junction of the superior vena cava and the right atrium, coarse positioning of the main sleeve is completed, fine positioning is conducted through threaded connection of the internal thread on the main sleeve and the external thread on the adjusting end shell, the advancing process of the communication pipe is more accurate, the error possibility is reduced, and the communication pipe is more accurate in positioning. Meanwhile, clear image display is provided for the operation process through the general lens and the short-focus lens, the operation risk and the operation difficulty are further reduced, and the system is more beneficial to doctors lacking experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heart intervention surgery, and more particularly to an interventional heart valve delivery system with positioning function. BACKGROUND

[0002] An artificially made tricuspid valve needs to be transported to a target position through a vascular path by an interventional delivery system; the existing delivery device usually adopts a guide wire guided delivery sheath to cooperate with a self-expanding stent or a balloon expansion mechanism to push the valve stent to a predetermined position in the superior vena cava or inferior vena cava; the stent position is determined by relying on X-ray fluoroscopy images and electrocardiogram positioning signals during the delivery process, and the preliminary deployment is realized by the axial advancement and rotation operation of the sheath; although such a device can complete the basic delivery function, it lacks real-time feedback and dynamic adjustment capability for the three-dimensional spatial coordinates of the stent, and is prone to stent deviation or positioning deviation due to anatomical variations or operation errors.

[0003] The placement height of the stent in the prior art depends on the experience and technical level of the doctor, and the stent anchoring position needs to be judged by image markers and hand feeling under limited vision during the operation, which has extremely low fault tolerance and cannot realize sub-millimeter level accurate positioning; once the stent is released, it cannot be withdrawn or adjusted again, and if there is deviation in the initial position, repeated operation or long-term dysfunction risk needs to be accepted; in addition, complex anatomical structures (such as curved blood vessels or calcified lesions) will further increase the operation difficulty, increase the operation time and the probability of complications; therefore, it is urgent to develop a delivery system with real-time positioning monitoring and dynamic adjustment function, so that the stent can be multi-dimensionally calibrated before release, and in abnormal conditions, it can be withdrawn and reset to ensure clinical effect and safety.

[0004] A patent with the publication number CN108652791B discloses an interventional heart valve delivery device with repeatable positioning, the technical solution of which is as follows: a core tube is provided with a guide head and a fixed head, and an interventional heart valve mounting position is arranged between the guide head and the fixed head; an outer sheath pipe that can slide axially is arranged on the periphery of the interventional heart valve mounting position, and a floating limiting strip is also arranged, the proximal end of the floating limiting strip is fixedly arranged relative to the fixed head or the core tube as a starting end, and the dynamic limiting strip is floating between the interventional heart valve mounting position and the outer sheath pipe; a positioning part for cooperating with a connecting ear of the interventional heart valve is arranged on the outer wall of the fixed head, before the connecting ear is completely released out of the outer sheath pipe, the floating limiting strip is bound by the outer sheath pipe to keep the cooperation between the connecting ear and the positioning part; the outer sheath pipe comprises an inner layer, an intermediate layer and an outer layer from inside to outside in sequence, the intermediate layer comprises a first segment, a second segment and a third segment from the distal end to the proximal end in sequence, the first segment is a hollow structure, and the hollow structure comprises at least two hollow units.

[0005] The prior art reduces the contact area between the outer sheath and the interventional heart valve to some extent by using a floating limiting strip, also as a smooth track, reduces the relative friction when contacting each other, and reduces the direct force during the pushing and retracting of the outer sheath, so as to realize accurate control of the release and recovery of the valve stent, and further, the fixed guide strip can be combined with the outer sheath to bundle the valve stent before the operation, and the fixed guide strip is in close contact with the valve stent. In the subsequent release of the valve stent, the fixed guide strip provides a smooth track between the tubular shell of the outer sheath and the valve stent, reduces the contact friction, and facilitates the release and control of the valve stent; the structure of the whole device is too complex, the operation process is very cumbersome, and the skill of the doctor is required, so a structure with relatively simple structure, simple operation process and function of positioning and fine adjustment of the valve stent is required. SUMMARY

[0006] In order to overcome the above defects of the prior art, the present application provides an interventional heart valve delivery system with positioning function to solve the problems in the above background art.

[0007] The present application provides the following technical scheme: an interventional heart valve delivery system with positioning function, comprising a working assembly, further comprising a control assembly, a stent assembly being slidably connected in the working assembly, and a control assembly being slidably connected on the control assembly. The working assembly comprises a main sleeve, a positioning balloon fixedly connected to the main sleeve, a friction ring fixedly connected to the positioning balloon, a water droplet protrusion fixedly connected to the end of the main sleeve, a total view lens fixedly connected to the water droplet protrusion, a ring light source fixedly connected to the end of the main sleeve, an internal thread formed in the end of the main sleeve, and a positioning air pipe fixedly connected to the positioning balloon.

[0008] Preferably, the water droplet protrusions are equidistantly arranged on the outer side of the end of the main sleeve, and the number is several, and each water droplet protrusion has a total view lens, and the light emitted by the ring light source is directed forward along the axis of the main sleeve.

[0009] Preferably, the control assembly comprises an adjusting end shell rotatably connected to the main sleeve, an external thread formed in the adjusting end shell, a light table fixedly connected to the external thread, a short focus lens fixedly connected to the light table, a lamp bead fixedly connected to the light table, a communication pipe fixedly connected to the light table, and a push sleeve fixedly connected to the adjusting end shell.

[0010] Preferably, the control assembly comprises a limiting inclined plate fixedly connected to the communication pipe, an annular air bag rotatably connected to the communication pipe, and a hook plate fixedly connected to the annular air bag.

[0011] Preferably, the limiting inclined plates are evenly distributed along the circumference of the communicating pipe on both sides of the annular air bag, and the number of the limiting inclined plates is several; the hook plates are evenly distributed along the circumference of the annular air bag on one side of the annular air bag, and the number of the hook plates is several.

[0012] Preferably, the control assembly comprises a main air bag fixedly connected to the communicating pipe, a fine adjustment air bag fixedly connected to the communicating pipe, an inclined air bag fixedly connected to the end of the communicating pipe, a rotating ring fixedly connected to the communicating pipe, a wide-angle lens fixedly connected to the inclined air bag, and a scattered light source fixedly connected to the inclined air bag.

[0013] Preferably, one end of the inclined air bag is fixedly connected to the communicating pipe, and the other end is rotatably connected to the rotating ring on the side surface; after the inclined air bag is fully inflated, the plane where the wide-angle lens is located and the transverse section of the communicating pipe form a certain angle.

[0014] Preferably, the support assembly comprises a net rack sleeved on the main air bag, a prosthetic valve fixedly connected to the net rack, the net rack comprises a first rotating frame, a head rotating seat fixedly connected to the first rotating frame, a tail rotating seat fixedly connected to the first rotating frame, and an extended arm fixedly connected to the head rotating seat.

[0015] Preferably, the net rack comprises a second rotating frame, a head pin seat fixedly connected to the second rotating frame, a tail pin seat fixedly connected to the second rotating frame, and an extended gripper fixedly connected to the head pin seat; the net rack further comprises a pulling seat rotatably connected to the tail pin seat, a pulling ring fixedly connected to the pulling seat, and a vertical rod fixedly connected to the first rotating frame.

[0016] Preferably, the head rotating seat and the head pin seat are rotatably connected, the tail rotating seat and the tail pin seat are rotatably connected, one first rotating frame and one second rotating frame form a group, and a plurality of groups form a unit, which is evenly arranged at the circumferential position of the main air bag, and a plurality of units are arranged at equal distances in the axial direction.

[0017] Technical effects and advantages of the present application: 1. The positioning air bag on the main sleeve is inflated and expanded near the junction of the superior vena cava and the right atrium, thereby completing the rough positioning of the main sleeve; the inner thread on the main sleeve and the outer thread on the adjusting end shell are screwed, thereby achieving accurate positioning and making the advancing process of the communicating pipe more accurate and reducing the possibility of errors; the total view lens and the short focus lens are used to provide clear image display for the surgical process, thereby further reducing the risk and difficulty of the surgery and being more beneficial to inexperienced doctors.

[0018] 2. The present application provides air to the annular air bag, so that the hook plate hooks the pull ring, and then rotates the adjusting end shell to pull the pull ring to move along the communication pipe in the axial direction, the extended arm on the net rack and the clamping state of the extended gripper are released, the net rack loses support and starts to retract, and then the process of deploying the net rack is restarted, so that the process of deploying the net rack has certain fault tolerance, and avoids the increase of surgical risk caused by the non-uniformity of patient tissue and the technical problems of doctors. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2 It is a schematic diagram of the support assembly of the present application. Figure 3 It is a schematic diagram of the working assembly of the present application. Figure 4 It is a schematic diagram of the control assembly of the present application. Figure 5 It is another view of the adjusting end shell of the present application. Figure 6 It is a partial sectional view of the control assembly. Figure 7 It is a schematic diagram of the annular air bag of the present application. Figure 8 It is Figure 6 A portion of the enlargement of the present application. Figure 9 It is Figure 6 A portion of the enlargement of the present application. Figure 10 It is a schematic diagram of the support assembly of the present application. Figure 11 It is Figure 10 A portion of the enlargement of the present application.

[0020] The reference signs are: 1, working assembly; 11, main sleeve; 12, positioning air bag; 13, friction ring; 14, water drop protrusion; 15, general observation lens; 16, ring light source; 17, internal thread; 18, positioning air pipe; 2, control assembly; 21, adjusting end shell; 22, external thread; 23, light table; 24, short focus lens; 25, lamp bead; 26, communication pipe; 27, limiting inclined plate; 28, annular air bag; 29, hook plate; 210, main air bag; 211, fine adjustment air bag; 212, inclined air bag; 213, rotating ring; 214, wide-angle lens; 215, scattering light source; 216, propelling sleeve; 3, support assembly; 31, net rack; 32, artificial valve; 33, first rotating frame; 34, head rotating seat; 35, tail rotating seat; 36, extended arm; 37, second rotating frame; 38, head pin seat; 39, tail pin seat; 310, extended gripper; 311, pull seat; 312, pull ring; 313, vertical rod. DETAILED DESCRIPTION

[0021] The technical solutions in the present application will be described clearly and completely in combination with the drawings in the present application. In addition, the forms of the structures described in the following embodiments are only examples. The interventional heart valve delivery system with positioning function involved in the present application is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] With reference to Figures 1-3 The present application provides an interventional heart valve delivery system with positioning function, comprising a working assembly 1, a control assembly 2 slidably connected in the working assembly 1, a stent assembly 3 slidably connected on the control assembly 2. The working assembly 1 comprises a main sleeve 11, a positioning balloon 12 fixedly connected on the main sleeve 11, a friction ring 13 fixedly connected on the positioning balloon 12, a water-drop protrusion 14 fixedly connected on the end of the main sleeve 11, a general view lens 15 fixedly connected on the water-drop protrusion 14, a ring belt light source 16 fixedly connected on the end of the main sleeve 11, an internal thread 17 opened on the end of the main sleeve 11, and a positioning air pipe 18 fixedly connected on the positioning balloon 12.

[0023] The water-drop protrusions 14 are circumferentially equidistantly arranged on the outer side of the end of the main sleeve 11, and the number is several. Each water-drop protrusion 14 has one general view lens 15. The light emitted by the ring belt light source 16 is along the axis of the main sleeve 11.

[0024] Specifically, the conventional heart valve interventional surgery needs to first use a working guide wire to enter the heart from the radial artery, then use a working catheter to enter the tricuspid valve position along the working guide wire, and then extend the surgical instrument into the tricuspid valve position through the working catheter to work. When installing the stent, the stent is generally made of nickel-titanium alloy and can recover to the designed shape at a certain temperature. If the installation position of the stent is not accurate due to operation error, it will be very inconvenient to move the position or take out the stent.

[0025] The positioning balloon 12 is fixedly connected on the main sleeve 11. When the main sleeve 11 enters the vicinity of the junction of the superior vena cava and the right atrium along the guide wire, the positioning balloon 12 is inflated and unfolded through the positioning air pipe 18 on the positioning balloon 12. The friction ring 13 on the positioning balloon 12 can maintain a certain friction with the inner wall of the superior vena cava under the support of the positioning balloon 12 to complete the rough positioning.

[0026] In the process of entering the superior vena cava along the working guide wire, the position of the main sleeve 11 can be judged in cooperation with X-ray and intragastric ultrasound, when entering the vicinity of the right atrium, after entering the blood-free environment, the total view lens 15 and the ring light source 16 in the water droplet convex 14 can be opened, and the right atrium and the tricuspid valve position can be directly displayed, compared with the traditional method of judging the operation condition only by X-ray and intragastric ultrasound, the total view lens 15 can be more intuitive and easy to use, and more friendly to inexperienced new doctors, and can also avoid potential surgical risks caused by tissue overlap or individual tissue differences.

[0027] Referring to Figures 4-9 The control assembly 2 comprises an adjusting end shell 21 rotatably connected in the main sleeve 11, an external thread 22 opened on the adjusting end shell 21, a light table 23 fixedly connected on the external thread 22, a short-focus lens 24 fixedly connected on the light table 23, a lamp bead 25 fixedly connected on the light table 23, a communication pipe 26 fixedly connected on the light table 23, and a push sleeve 216 fixedly connected on the adjusting end shell 21.

[0028] The control assembly 2 comprises a limiting inclined plate 27 fixedly connected on the communication pipe 26, an annular air bag 28 rotatably connected on the communication pipe 26, and a hook plate 29 fixedly connected on the annular air bag 28.

[0029] The limiting inclined plate 27 is distributed evenly along the circumference of the communication pipe 26 on both sides of the annular air bag 28, and the number is several, and the hook plate 29 is distributed evenly along the circumference of the annular air bag 28 on one side of the annular air bag 28, and the number is several.

[0030] The control assembly 2 comprises a main air bag 210 fixedly connected on the communication pipe 26, a fine adjustment air bag 211 fixedly connected on the communication pipe 26, an inclined air bag 212 fixedly connected on the end of the communication pipe 26, a rotating ring 213 fixedly connected on the communication pipe 26, a wide-angle lens 214 fixedly connected on the inclined air bag 212, and a scattering light source 215 fixedly connected on the inclined air bag 212.

[0031] One end of the inclined air bag 212 is fixedly connected on the communication pipe 26, and the other end is rotatably connected on the rotating ring 213, and when the inclined air bag 212 is fully inflated, the plane where the wide-angle lens 214 is located and the transverse section of the communication pipe 26 form a certain angle.

[0032] Specifically, after the main sleeve 11 enters the junction of the superior vena cava and the right atrium, the control assembly 2 is transported to the working position through the main sleeve 11 and the working guide wire; the main sleeve 11 is internally threaded only at a part of the end, so the adjustment end shell 21 with the communication tube 26 does not encounter resistance when it enters the main sleeve 11 in the early stage, and then when the external thread 22 starts to contact the internal thread 17, the adjustment end shell 21 is rotated by rotating the push sleeve 216 on the adjustment end shell 21 through the control handle knob outside the body, and the adjustment end shell 21 is screwed through the external thread 22 and the internal thread 17, so that the communication tube 26 enters the working position slowly and accurately, at this time, the fine positioning is started, and the process of installing the stent assembly 3 is more accurate in position and less likely to make mistakes through the coarse positioning of the positioning air bag 12 and the fine positioning of the external thread 22.

[0033] When the positioning process is completed, the short-focus lens 24 and the lamp bead 25 on the light table 23 are opened, and part of the control assembly 2 and the whole stent assembly 3 are exposed in the lens, at this time, under the real-time image transmission of the short-focus lens 24, the surgical process can be safer and more efficient, and the surgical process can be completely recorded for use as teaching materials.

[0034] Referring to Figures 10-11 , the stent assembly 3 comprises a net frame 31 sleeved on the main air bag 210, a prosthetic valve 32 fixedly connected to the net frame 31, the net frame 31 comprising a first rotating frame 33, a head rotating seat 34 fixedly connected to the first rotating frame 33, a tail rotating seat 35 fixedly connected to the first rotating frame 33, and an extension arm 36 fixedly connected to the head rotating seat 34.

[0035] The net frame 31 comprises a second rotating frame 37, a head pin seat 38 fixedly connected to the second rotating frame 37, a tail pin seat 39 fixedly connected to the second rotating frame 37, and an extension gripper 310 fixedly connected to the head pin seat 38; the net frame 31 further comprises a pull seat 311 rotationally connected to the tail pin seat 39, a pull ring 312 fixedly connected to the pull seat 311, and a vertical rod 313 fixedly connected to the first rotating frame 33.

[0036] The head rotating seat 34 and the head pin seat 38 are rotationally connected, the tail rotating seat 35 and the tail pin seat 39 are rotationally connected, one first rotating frame 33 and one second rotating frame 37 form a group, and a plurality of groups form a unit, which are uniformly arranged at the circumferential position of the main air bag 210, and a plurality of units are arranged equidistantly in the axial direction.

[0037] Specifically, after the positioning is completed, if the installation position of the net frame 31 is determined, the net frame 31 is deployed; the communication tube 26 is a hollow structure, and a plurality of gas pipelines are arranged therein to control the annular air bag 28, the fine adjustment air bag 211, and the inclined air bag 212. Figure 8 and Figure 9As shown, the gas pipeline is existing technology and will not be described in detail here; the structure of the inclined airbag 212 is as follows. Figure 9 As shown, one side of the oblique airbag 212 is fixedly connected to the outer wall of the communication tube 26, and the other side is fixedly connected to the wide-angle lens 214 or the diffused light source 215. The middle position can expand when inflated. During the deployment of the mesh frame 31, the artificial valve 32 on the mesh frame 31 is first passed through the tricuspid valve, and then air is supplied to the oblique airbag 212. After the oblique airbag 212 opens, the wide-angle lens 214 and the diffused light source 215 rotate around the rotating ring 213 under the push of the oblique airbag 212. Finally, after the oblique airbag 212 is fully inflated, the angle between the plane where the wide-angle lens 214 is located and the cross section of the communication tube 26 is 18 degrees. At this time, under the illumination of the diffused light source 215, the wide-angle lens 214 can synchronously transmit the image data of the installation process of the support assembly 3. Then the main airbag 210 is inflated. The main airbag 210 is inflated, which in turn inflates the space frame 31. The space frame 31 is made of nickel-titanium alloy and has high elasticity. During the opening of the main airbag 210, the first rotating frame 33 and the second rotating frame 37 are rotatably connected through the head rotating seat 34 and the head pin seat 38, and also through the tail rotating seat 35 and the tail pin seat 39. Each unit has six sets, and the entire space frame 31 has six units. Each unit is connected by the longitudinal rod 313. Therefore, during the expansion of the space frame 31, the angle between the first rotating frame 33 and the second rotating frame 37 gradually increases, and the axial length of the six units gradually decreases. Finally, after the extendable arm 36 enters the extendable gripper 310, the snap-fit ​​is completed, and the expansion process of the space frame 31 ends, completing the deployment of the artificial valve 32 and the installation of the space frame 31.

[0038] If the position of the space frame 31 is found to be inaccurate during installation, posing a risk of medical malpractice, air can be supplied to the annular airbag 28. The annular airbag 28 is rotatably connected to the communication pipe 26, specifically by slidingly engaging the annular airbag 28 with the communication pipe 26, allowing for small relative displacements between them, including axial or circumferential relative displacements. The gas pipeline is located inside the annular airbag 28, which will not be elaborated here. The axial expansion of the annular airbag 28 is constrained by the limiting inclined plate 27, which is fixedly connected to the communication pipe 26. The limiting inclined plate 27 is slidably connected to the side wall of the annular airbag 28. During the expansion of the annular airbag 28, its side wall is constrained by the limiting inclined plate 27, ensuring that the annular airbag 28 can only expand radially. After the annular airbag 28 expands, it drives the hook plate 29 to move, ultimately causing the hook plate 29 to extend into the space frame. In the gap between the first rotating frame 33 and the second rotating frame 37 at the end of 31, the pull ring 312 is hooked. Since the pull seat 311 is rotatably connected to the tail pin seat 39, rotating the adjusting end shell 21 will pull the pull ring 312 to move axially along the communication pipe 26. Since the annular airbag 28 is rotatably connected to the communication pipe 26, the hook plate 29 pulls the pull ring 312 under the push of the limiting inclined plate 27. Since the first rotating frame 33 and the second rotating frame 37 are a linkage mechanism, after the pull ring 312 is pulled, the force applied to the pull seat 311 decreases the angle between the first rotating frame 33 and the second rotating frame 37. The extension arm 36 on the grid frame 31 disengages from the extension gripper 310. At this time, the engagement state between the extension arm 36 and the extension gripper 310 is released, and the grid frame 31 loses support and begins to retract. Then, the position adjustment of the grid frame 31 is carried out. After the position of the grid frame 31 is determined, the above deployment process of the grid frame 31 is repeated.

[0039] After confirming that the space frame 31 is properly deployed, supply air to the fine-tuning airbag 211. The structure of the fine-tuning airbag 211 is as follows: Figure 9 As shown, the opening angle at the end of the mesh frame 31 and the position of the artificial valve 32 are adjusted using the fine-tuning airbag 211, and then the surgical instruments are gradually removed.

[0040] Reference Figures 1-11 The working principle of this invention is as follows: S1: First, the working guidewire is inserted into the heart through the radial artery. Then, the main cannula 11 is used to enter the area near the junction of the superior vena cava and the right atrium along the working guidewire. The positioning balloon 12 is inflated and deployed through the trachea on the positioning balloon 12. The friction ring 13 on the positioning balloon 12 can maintain a certain friction with the inner wall of the superior vena cava under the supporting action of the positioning balloon 12, thus completing the coarse positioning. Then, the overall view lens 15 and the ring light source 16 inside the water droplet protrusion 14 are opened to provide a direct image display of the position of the right atrium and tricuspid valve. S2: After the main cannula 11 enters the junction of the superior vena cava and the right atrium, the control component 2 is transported to the working position through the main cannula 11 and the working guide wire. The adjusting end shell 21, carrying the communication tube 26, does not encounter resistance when it enters the main cannula 11. Then, when the external thread 22 and the internal thread 17 begin to contact, the control handle knob of the adjusting end shell 21 is rotated. The adjusting end shell 21, through the screw connection of the external thread 22 and the internal thread 17, makes the process of the communication tube 26 entering the working position slow and precise, and the fine positioning begins. After the positioning process is completed, the short focal length lens 24 and the lamp bead 25 on the optical stage 23 are opened, exposing a part of the control component 2 and the entire support component 3 in the lens. S3: After positioning is completed, if the installation position of the mesh frame 31 is determined, first, the artificial valve 32 on the mesh frame 31 is passed through the tricuspid valve, and then air is supplied to the oblique airbag 212. After the oblique airbag 212 is opened, the wide-angle lens 214 and the diffused light source 215 rotate around the rotating ring 213 under the push of the oblique airbag 212. Finally, after the oblique airbag 212 is fully inflated, the angle between the plane where the wide-angle lens 214 is located and the cross-section of the communication tube 26 is 18 degrees. At this time, under the illumination of the diffused light source 215, the wide-angle lens 214 can synchronously transmit the image data of the installation process of the support assembly 3. Then the main airbag... 210 supplies air to inflate the main airbag 210, which in turn inflates the mesh frame 31. During the inflation of the main airbag 210, the first rotating frame 33 and the second rotating frame 37 are rotatably connected via the head rotating seat 34 and the head pin seat 38, and also rotatably connected via the tail rotating seat 35 and the tail pin seat 39. During the expansion of the mesh frame 31, the angle between the first rotating frame 33 and the second rotating frame 37 gradually increases, and the axial length of the six units gradually decreases. Finally, after the extension arm 36 enters the extension gripper 310, the snap-fit ​​is completed, and the expansion process of the mesh frame 31 ends, completing the deployment of the artificial valve 32 and the installation of the mesh frame 31. S4: If the position of the space frame 31 is found to be inaccurate during the installation process, by supplying air to the annular airbag 28, the annular airbag 28 expands and drives the hook plate 29 to move. Eventually, the hook plate 29 extends into the gap between the first rotating frame 33 and the second rotating frame 37 at the end of the space frame 31 and hooks the pull ring 312. At this time, when the adjusting end shell 21 is rotated, the pull ring 312 will be pulled to move axially along the communication pipe 26. Under the push of the limiting inclined plate 27, the hook plate 29 pulls the pull ring 312, which releases the engagement between the extended arm 36 on the space frame 31 and the extended gripper. The space frame 31 loses support and begins to retract. Then, the position of the space frame 31 is adjusted. After the position of the space frame 31 is determined, the above process of deploying the space frame 31 is repeated. S5: After the mesh frame 31 is deployed, air is supplied to the fine-tuning airbag 211. The fine-tuning airbag 211 is used to adjust the opening angle at the end of the mesh frame 31 and the position of the artificial valve 32. Then the surgical instruments are gradually removed.

[0041] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An interventional cardiac valve delivery system with positioning function, comprising a working component (1), characterized in that: It also includes a control component (2), which is slidably connected within the working component (1); and a support component (3), which is slidably connected to the control component (2). The working component (1) includes a main sleeve (11), a positioning airbag (12) fixedly connected to the main sleeve (11), a friction ring (13) fixedly connected to the positioning airbag (12), a water droplet protrusion (14) fixedly connected to the end of the main sleeve (11), a panoramic lens (15) fixedly connected to the water droplet protrusion (14), a ring light source (16) fixedly connected to the end of the main sleeve (11), an internal thread (17) opened at the end of the main sleeve (11), and a positioning air tube (18) fixedly connected to the positioning airbag (12).

2. The interventional cardiac valve delivery system with positioning function according to claim 1, characterized in that: The water droplet protrusions (14) are circumferentially and equidistantly arranged on the outer side of the end of the main sleeve (11), and there are several of them. Each water droplet protrusion (14) has a panoramic lens (15), and the light emitted by the ring light source (16) is forward along the axis of the main sleeve (11).

3. The interventional cardiac valve delivery system with positioning function according to claim 2, characterized in that: The control assembly (2) includes an adjustment end shell (21) rotatably connected to the main sleeve (11), an external thread (22) opened on the adjustment end shell (21), an optical stage (23) fixedly connected to the external thread (22), a short focal length lens (24) fixedly connected to the optical stage (23), an LED bead (25) fixedly connected to the optical stage (23), a communication pipe (26) with a fixing member connected to the optical stage (23), and a propulsion sleeve (216) fixedly connected to the adjustment end shell (21).

4. The interventional cardiac valve delivery system with positioning function according to claim 3, characterized in that: The control component (2) includes a limiting inclined plate (27) fixedly connected to the communication pipe (26), an annular airbag (28) rotatably connected to the communication pipe (26), and a hook plate (29) fixedly connected to the annular airbag (28).

5. The interventional cardiac valve delivery system with positioning function according to claim 4, characterized in that: The limiting inclined plates (27) are evenly distributed on both sides of the annular airbag (28) along the circumference of the communication pipe (26), and there are several of them. The hook plates (29) are on one side of the annular airbag (28), and there are several of them, evenly distributed along the circumference of the annular airbag (28).

6. The interventional cardiac valve delivery system with positioning function according to claim 5, characterized in that: The control component (2) includes a main airbag (210) fixedly connected to the communication tube (26), a fine-tuning airbag (211) fixedly connected to the communication tube (26), an oblique airbag (212) fixedly connected to the end of the communication tube (26), a rotating ring (213) fixedly connected to the communication tube (26), a wide-angle lens (214) fixedly connected to the oblique airbag (212), and a diffused light source (215) fixedly connected to the oblique airbag (212).

7. The interventional cardiac valve delivery system with positioning function according to claim 6, characterized in that: One end of the oblique airbag (212) is fixedly connected to the communication tube (26), and the side of the other end is rotatably connected to the rotating ring (213). After the oblique airbag (212) is fully inflated, the plane where the wide-angle lens (214) is located has a certain angle with the cross section of the communication tube (26).

8. The interventional cardiac valve delivery system with positioning function according to claim 7, characterized in that: The support assembly (3) includes a mesh frame (31) sleeved on the main airbag (210), an artificial valve (32) fixedly connected to the mesh frame (31), the mesh frame (31) including a first rotating frame (33), a head rotating seat (34) fixedly connected to the first rotating frame (33), a tail rotating seat (35) fixedly connected to the first rotating frame (33), and an extension arm (36) fixedly connected to the head rotating seat (34).

9. An interventional cardiac valve delivery system with positioning function according to claim 8, characterized in that: The space frame (31) includes a second rotating frame (37), a head pin seat (38) fixedly connected to the second rotating frame (37), a tail pin seat (39) fixedly connected to the second rotating frame (37), and an extended gripper (310) fixedly connected to the head pin seat (38); the space frame (31) also includes a pull seat (311) rotatably connected to the tail pin seat (39), a pull ring (312) fixedly connected to the pull seat (311), and a longitudinal rod (313) fixedly connected to the first rotating frame (33).

10. An interventional cardiac valve delivery system with positioning function according to claim 9, characterized in that: The head swivel (34) and the head pin seat (38) are rotatably connected, and the tail swivel (35) and the tail pin seat (39) are rotatably connected. A first swivel frame (33) and a second swivel frame (37) form a group, and several groups form a unit, which are evenly arranged around the main airbag (210). Several units are axially equidistant.

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