System for delivering medical device to heart of patient

Abstract

The utility model provides a system for delivering a medical device to the heart of a patient. The system comprises a conveying system and a stabilizer. The conveying system comprises a first conveyor and a second conveyor. The stabilizer comprises a guide rail, a first supporting seat and a second supporting seat. The guide rail has a first translation track. The first supporting seat translates on the first translation track and comprises a first base, an extension rod and a first bearing piece arranged on the first base. The second supporting seat is arranged on the extension rod and comprises a second bearing piece. When the first conveyor is carried on the first bearing part and the second conveyor is carried on the second bearing part, the first conveyor and the second conveyor can be constructed to form a central axis, and the central axis extends in the extending direction parallel to the first translation track. And the first conveyor and the second conveyor can synchronously translate along the central axis under the translation of the first supporting seat. The system is convenient to operate, the synchronous stability and accuracy of an operation are guaranteed, and the overall effect of the operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a system for delivering a medical device to a patient's heart. Background Art

[0002] In the field of interventional medical surgery, accurate and stable positioning of interventional instruments is crucial to ensure the safety and smoothness of the surgical process. Usually, such interventional instruments need to be firmly placed near the patient's body or at the surgical site to assist the smooth progress of the surgery. For this purpose, auxiliary brackets are designed to support interventional instruments. When the interventional instrument is supported on the auxiliary bracket, multiple handles of the interventional instrument can move on the auxiliary bracket to achieve interventional operation of the interventional instrument.

[0003] During the operation, there is a need for at least two handles to move synchronously to accommodate interventional operations. Although the existing auxiliary bracket can assist in adjusting the movement of interventional instruments, during the operation, the doctor is usually required to use both hands to operate at least two adjustment units on the auxiliary bracket at the same time to control the at least two handles of the interventional instrument respectively, thereby achieving the synchronous movement of the at least two handles. However, this operation method not only increases the complexity of the operation and reduces the convenience of operation, but also has the problem of poor synchronization and inaccuracy of control due to uneven force application of both hands, so the synchronization stability and accuracy of the operation cannot be guaranteed. Utility Model Content

[0004] The purpose of the utility model is to provide a system for delivering a medical device to a patient's heart, which not only simplifies complex surgical operations, improves the convenience of operation and surgical efficiency, but also further ensures the synchronous stability and accuracy of the operation, thereby improving the overall effect of the operation.

[0005] In order to achieve the above object, the utility model provides a system for delivering a medical device to a patient's heart, the system comprising:

[0006] A conveying system, comprising:

[0007] a first delivery device having a first sheath and a first handle; and

[0008] a second conveyor having a second sheath and a second handle;

[0009] wherein the second sheath extends through the first sheath and the first handle, and the second handle is located at the proximal side of the first handle; and

[0010] A stabilizer, comprising:

[0011] A guide rail, the guide rail having a first translation track;

[0012] a first support base movable and translatable on the first translation track, the first support base comprising a first base, an extension rod extending from the first base toward the proximal end, and a first bearing member disposed on the first base and extending in a direction away from the guide rail; and

[0013] A second support base disposed on the extension rod, the second support base comprising a second bearing member, and the second bearing member extends in a direction away from the extension rod;

[0014] When the first handle is carried on the first supporting member and the second handle is carried on the second supporting member, the first handle and the second handle can be constructed to form a central axis, and the central axis extends in a direction parallel to the extension direction of the first translation track. The first conveyor and the second conveyor can be synchronously translated along the central axis through the translation of the first support seat.

[0015] The system provided by the utility model only drives the first handle and the second handle to move synchronously through the translation of the first support seat, so as to realize the synchronous interventional control of the first conveyor and the second conveyor during the operation, so the operation is convenient and the synchronization is stable. At the same time, the central axis formed by the first handle and the second handle is parallel to the extension direction of the first translation track, which ensures that the movement of the stabilizer corresponds to the movement of the conveying system, and then accurately and error-freely transmits the operator's operation of the stabilizer to the conveying system, so as to realize the precise control of the conveying system by the stabilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 An overall schematic diagram of the structure of a system for delivering a medical device to a patient's heart in some embodiments is shown.

[0018] Figure 2 Shows Figure 1 Schematic diagram of the structure of the stabilizer.

[0019] Figure 3 A three-dimensional schematic diagram of the first support base in some embodiments is shown.

[0020] Figure 4A schematic diagram of a space avoidance design between a first support seat and a second support seat in some embodiments is shown.

[0021] Figure 5 Shows Figure 4 Side view and top view of the first support seat without the first driving gear.

[0022] Figure 6 An overall schematic diagram of a first support base and a second support base of a stabilizer in some embodiments is shown.

[0023] Figure 7 Shows Figure 6 A partially exploded schematic diagram of the first support seat.

[0024] Figure 8 Shows Figure 6 Schematic diagram of the three-dimensional structure of the second support seat.

[0025] Fig. 9 A schematic structural diagram of a stabilizer having a second support base with another different structure in some other embodiments is shown.

[0026] Fig.10 Shows Fig. 9 Structural side view of the second support seat.

[0027] Fig.11 Shows Fig. 9 A three-dimensional structural diagram of the second support seat.

[0028] Figure 12-14 Schematic diagrams of states of the third support base of the system with different inclination angles in other embodiments are shown, wherein: Fig.12 The inclination angle of the third support seat is not adjustable. Figure 13-14 The inclination angle of the third support seat is adjustable.

[0029] Fig.15 A schematic structural diagram of the third support base is shown.

[0030] Fig.16 A schematic diagram of a structure in which a stabilizer has multiple scale markings is shown.

[0031] Fig.17 The stabilizer also includes a base plate and a spacer rod.

[0032] Fig.18 A schematic diagram of the structure in which the guide rail is inclined at an acute angle to the base plate is shown.

[0033] Figure 19-20 A schematic diagram of the structure in which the spacing rod can slide on the base plate is shown.

[0034] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In addition, the following descriptions of the embodiments are made with reference to the attached diagrams to illustrate specific embodiments in which the present invention can be implemented. Directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only with reference to the directions of the attached diagrams. Therefore, the directional terms used are for better and clearer description and understanding of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0037] It should be noted that, in order to more clearly describe the system for delivering a medical device to a patient's heart provided by the utility model, the limiting terms "proximal end" and "distal end" described in the specification of the utility model are all conventional terms in the field of interventional medicine. Specifically, "distal end" refers to the end away from the operator during the surgical operation, and "proximal end" refers to the end close to the operator during the surgical operation; the direction of the central axis of rotation of an object such as a cylinder or a tube is defined as the axial or longitudinal axis; the circumferential direction is the direction around the axis of an object such as a cylinder or a tube (perpendicular to the axis and perpendicular to the cross-sectional radius); the radial direction is the direction along the diameter or radius. It is worth noting that the "end" in the terms such as "proximal end", "distal end", "one end", "the other end", "first end", "second end", "initial end", "end", "two ends", "free end", "upper end" and "lower end" is not limited to the end, end point or end face, but also includes a portion extending from the end, end point or end face on the element to which the end, end point or end face belongs for an axial distance and / or radial distance. Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by technicians in the technical field of the present invention. The conventional terms used in the specification of the present invention are only for the purpose of describing specific embodiments and cannot be understood as limiting the present invention.

[0038] See also Figure 1-2As shown, the utility model provides a system 100 for delivering a medical device to a patient's heart, including a delivery system and a stabilizer 50. During the operation, the stabilizer 50 is used to support the delivery system and assist the delivery system in precise regulation, thereby delivering the medical device (not shown) to the target position of the patient's heart. Specifically, the delivery system includes a first conveyor 20 and a second conveyor 30. The first conveyor 20 has a first sheath 21 and a first handle 22, the first sheath 21 is an elongated hollow tube, and the first handle 22 is fixedly disposed at the proximal end of the first sheath 21. The second conveyor 30 has a second sheath 31 and a second handle 32, the second sheath 31 is an elongated hollow tube, and the second handle 32 is fixedly disposed at the proximal end of the second sheath 31. Among them, the second sheath 31 can extend through the first sheath 21 and the first handle 22, and the second handle 32 is positioned on the proximal side of the first handle 22.

[0039] Further, the stabilizer 50 includes a guide rail 51, a first support seat 52, and a second support seat 53. The guide rail 51 has a first translation track 510, and the first support seat 52 can move and translate on the first translation track 510. The first support seat 52 includes a first base 521, an extension rod 522 extending from the first base 521 to the proximal end, and a first bearing member 523 disposed on the first base 521 and extending in a direction away from the guide rail 51. The second support seat 53 is disposed on the extension rod 522, and the second support seat 53 includes a second bearing member 531, and the second bearing member 531 extends in a direction away from the extension rod 522.

[0040] Then, when the first handle 22 is carried on the first carrier 523 and the second handle 32 is carried on the second carrier 531, the first handle 22 and the second handle 32 can be constructed to form a central axis X. The central axis X extends in a direction parallel to the extension direction of the first translation track 510. Thus, the first conveyor 20 and the second conveyor 30 are synchronously translated along the central axis X through the translation of the first support seat 52, thereby realizing synchronous interventional manipulation of the first conveyor 20 and the second conveyor 30 during the operation.

[0041] In some embodiments, the first base 521 is roughly in the shape of a square, and the extension rod 522 extends from the upper half of the proximal surface of the first base 521 to the proximal end to form a long strip extension rod 522. Inevitably, the thickness of the long strip extension rod 522 is less than the thickness of the first base 521. In addition, the first carrier 523 is roughly in the shape of a Y, so as to carry the first handle 22 of the first conveyor 20. The upper part of the first carrier 523 has a clamping groove that is roughly in the shape of a V or U, so as to clamp and fix the first handle 22. The lower part of the first carrier 523 is roughly in the shape of a letter "1" for connecting to the first base 521, for example, by welding and fixing it to the surface of the first base 521 or a recessed receiving groove on the surface.

[0042] The present application only drives the first handle 22 and the second handle 32 to move together synchronously through the translation of the first support seat 52, so as to realize the synchronous interventional control of the first conveyor 20 and the second conveyor 30 during the operation, so the synchronization is stable. At the same time, the central axis X formed by the first handle 22 and the second handle 32 is parallel to the extension direction of the first translation track 510, which ensures that the movement of the stabilizer 50 corresponds to the movement of the conveying system, and then accurately and error-freely transmits the operator's operation of the stabilizer 50 to the conveying system, so as to realize the precise control of the conveying system by the stabilizer 50. That is, in the system 100 designed by the present application, the operator only needs to operate the stabilizer 50 with one hand to assist in completing the precise control of the conveying system, which not only solves the technical problem of complex auxiliary support control in the prior art, improves the convenience and efficiency of surgical operation, but also further ensures its synchronous stability and accuracy, thereby improving the overall effect of the operation.

[0043] In particular, in some embodiments, the medical device includes a valve clip 200, which is detachably connected to the distal end of the second sheath 31, and the second handle 32 can be manipulated to actuate the valve clip 200 to clamp. The first conveyor 20 is a bending device that can enter the vicinity of the mitral valve or tricuspid valve of the patient's heart through a transapical path or a tortuous transcatheter path. The second conveyor 30 is a valve clip control device that is used to control the valve clip 200 to clamp the valve leaflets at the target position of the mitral valve or tricuspid valve to repair mitral valve or tricuspid valve regurgitation. Please continue reading Figure 1 As shown, in order to be able to visualize the clamping angle of the heart valve clip 200 outside the patient's body, that is, at the proximal end of the second conveyor 30, a clamping observation window 321 and a clamping angle mark 322 are provided on the second handle 32, so that the clamping angle mark 322 corresponding to the valve clip 200 can be viewed through the clamping observation window 321, thereby increasing the controllability of the valve clamping.

[0044] Among them, the clamping angle mark 322 is set near the clamping observation window 321, such as being set around the clamping observation window 321. The clamping angle mark 322 can be a mark of multiple angles, such as marks of 0 degrees, 60 degrees, 120 degrees, etc., or a state mark of the opening angle of the valve clip 200, such as a valve clip mark of 0 degrees, a valve clip mark of 60 degrees, a valve clip mark of 120 degrees, etc., and of course, it can also be a combination of the above two marks. Then, when the second handle 32 is carried on the second carrier 531, in order to make it easy for the operator of the control system 100 to observe the clamping observation window 321 and the clamping angle mark 322, the clamping observation window 321 and the clamping angle mark 322 will be set toward the operator. In some embodiments, the clamping observation window 321 has two and is symmetrically arranged. Then, when the second handle 32 is carried on the second carrier 531, the two clamping observation windows 321 are symmetrically located on both sides of the central axis X and each faces the corresponding operator, so that the operator can observe from both sides of the system 100. In other words, when the operator is located at one side of the system 100 and operates the conveying system, the clamping observation window 321 and the clamping angle mark 322 will face the operator for easy observation by the operator.

[0045] For some applications, the second support base 53 is movably disposed on the extension rod 522 to achieve translation relative to the first support base 52. Figure 1-3 As shown, the extension rod 522 is provided with a second translation track 520, and the second translation track 520 is spaced apart from the first carrier 523. The extension direction of the second translation track 520 is parallel to the extension direction of the first translation track 510, and the second support seat 53 can be movable and translated on the second translation track 520. Therefore, the second conveyor 30 can be translated along the central axis X alone under the translation of the second support seat 53, so as to get closer to or away from the first conveyor 20, thereby realizing the independent interventional control of the second conveyor 30 during the operation. That is, this embodiment realizes the synchronous interventional control and independent interventional control of the conveying system by driving the translation of the first support seat 52 and the second support seat 53 respectively, thereby ensuring that the system 100 can adapt to the needs of various surgical scenarios, with good flexibility and stable synchronization.

[0046] Furthermore, in order to avoid interference between the second support base 53 and the first support base 52 when the second support base 53 is close to the first support base 52 or interference when operating components on one of them, for example, Figure 4-5As shown, in order to prevent the first support seat 52 from interfering with the rotation of the second locking member 533 when the operator manipulates the second locking member 533 on the second support seat 53, and of course, to prevent the first handle 22 and the second handle 32 from interfering with each other, a limiting portion 5221 is provided at one end of the extension rod 522 close to the first base 521, and the limiting portion 5221 separates the second support seat 53 and the first base 521 to form a gap to avoid the second locking member 533, thereby preventing the two from interfering with each other and affecting the locking of the second support seat 53 by the second locking member 533 at a certain position of the second translation track 520, and finally ensuring the stability of the auxiliary control of the conveying system by the stabilizer 50. Specifically, the limiting portion 5221 includes a limiting protrusion 5222, which is arranged on the surface of the extension rod 522 away from the first translation track 510 and extends to form an axial length, and the second translation track 520 and the limiting protrusion 5222 are located on the same surface of the extension rod 522 and are connected by a reinforcing rib 5223. The design of the reinforcing rib 5223 not only increases the axial strength of the extension rod 522 , but also reduces the difficulty of processing the second translation track 520 , thereby ultimately reducing the overall manufacturing cost of the system 100 .

[0047] In some embodiments, the limiting protrusion 5222 is an inclined surface formed by the transition from the first base 521 to the extension rod 522 , and the reinforcing rib 5223 extends axially from the proximal end of the inclined surface to form a plane parallel to the second translation rail 520 and intersects with the second translation rail 520 .

[0048] Of course, in other embodiments, in order to avoid the defect that the second support seat 53 is separated from the first support seat 52 during the translation process, another limiting portion (not shown) is provided at the end of the extension rod 522 away from the first base 521. The other limiting portion includes a circumferential flange formed by the circumferential extension around the extension rod 522, and the circumferential flange is used to limit the second support seat 53 within the second translation track 520.

[0049] It is understandable that in order to ensure the accuracy of the translation stroke of the first support seat 52 on the first translation track 510, for some applications, such as Figure 6-7 As shown, the first support seat 52 further includes a first driving gear 524, and the first translation track 510 includes a first rack 5100 arranged in the axial direction. The first support seat 52 utilizes the first driving gear 524 to mesh with the first rack 5100 to translate relative to the guide rail 51, thereby achieving precise translation of the first support seat 52 along the first translation track 510. It can be understood that, given that the more teeth a gear has, the higher the transmission accuracy but the lower the transmission efficiency, the designer can set a suitable number of teeth according to requirements to achieve a balance between transmission efficiency and transmission accuracy.

[0050] The first base 521 of the first support seat 52 is provided with an axially penetrating first guide slot 5211, so that the guide rail 51 can axially penetrate and movably pass through the first guide slot 5211. The first guide slot 5211 is provided at the lower part of the first base 521 to be separated from the position where the extension rod 522 extends, thereby avoiding interference with the extension rod 522.

[0051] At the same time, a positioning hole 5212 is formed inwardly from the outer side surface of the first base 521, specifically, on the outer side surface perpendicular to the first guide slot 5211, and the positioning hole 5212 is connected to the first guide slot 5211 to position the first driving gear 524. The first driving gear 524 penetrates from the positioning hole 5212 into the first guide slot 5211 of the first base 521 to mesh with the guide rail 51 in the first guide slot 5211, specifically, mesh with the first rack 5100, thereby realizing the precise translation of the first support seat 52 on the guide rail 51.

[0052] Specifically, the first driving gear 524 includes a first knob 5241 and a first gear 5242 connected to the first knob 5241. The first knob 5241 is positioned on the outer side of the first base 521 and abuts against the side to facilitate the operator's control. After passing through the positioning hole 5212, the first gear 5242 is positioned in the first guide groove 5211 and meshes with the first rack 5100. A force is applied to the first knob 5241 to drive the first knob 5241 to rotate in the positioning hole 5212, and the first gear 5242 also rotates synchronously. Under the meshing of the first gear 5242 and the first rack 5100, the first support seat 52 is axially translated on the first translation track 510.

[0053] Of course, in order to prevent the first driving gear 524 from shaking or oscillating during the rotation process, in some embodiments, two symmetrical abutting tops 5243 are further provided on the first gear 5242, and the abutting tops 5243 are roughly disc-shaped. When the first driving gear 524 is mounted on the first base 521, the two abutting tops 5243 can abut against two opposite inner surfaces of the first guide groove 5211 to prevent the first driving gear 524 from shaking.

[0054] In some embodiments, in an extension direction parallel to the first carrier 523, a size of the first base 521 is slightly larger than or equal to the sum of a size of the extension rod 522 and a size of the guide rail 51, so that the first support seat 52 can achieve engagement with the guide rail 51 while also reducing the thickness of the first base 521 as a whole.

[0055] After the first support base 52 is translated to any position of the guide rail 51, in order to prevent the first support base 52 from shifting due to gravity or accidental touch, please continue to refer to Figure 6-7As shown, the first support seat 52 also includes a first locking member 525 and a first visual mark 526 provided on the first base 521. During operation, the first knob 5241 is rotated to adjust the translation of the first support seat 52 relative to the guide rail 51. When the first support seat 52 is translated to a suitable displacement, the first locking member 525 is rotated to lock the first support seat 52 to the guide rail 51, thereby completing a smooth locking. The first visual mark 526 is used for observation by the operator, so that the operator can quickly and accurately judge the state of the first support seat 52, effectively avoiding the risk of misoperation during the operation.

[0056] The first visual mark 526 has a first locking mark 5261 and a first unlocking mark 5262. The first locking member 525 can move between a locking position and an unlocking position relative to the guide rail 51 under the guidance of the first locking mark 5261 and the first unlocking mark 5262. Specifically, the first locking member 525 is rotated to spirally advance or retract relative to the first base 521 to switch between abutting against the side surface of the guide rail 51 in the first guide groove 5211 and disengaging from the side surface, thereby completing the switching between the locking position and the unlocking position, thereby realizing the locking and disengagement of the first support seat 52 on the first translation track 510 by the first locking member 525.

[0057] In addition, in order to ensure the accuracy of the translation stroke of the second support seat 53 on the second translation track 520, for some applications, such as Figure 6 and Figure 8 As shown, the second support seat 53 also includes a second driving gear 532, and the second translation track 520 includes a second rack 5200 arranged axially. The second support seat 53 utilizes the second driving gear 532 to engage with the second rack 5200 to translate relative to the first support seat 52, thereby realizing precise translation of the second support seat 53 along the second translation track 520.

[0058] Meanwhile, the second support seat 53 further includes a second locking member 533 and a second visual mark 534. The second visual mark 534 has a second locking mark and a second unlocking mark (not numbered), and the second locking member 533 can move between a locking position and an unlocking position relative to the extension rod 522 under the guidance of the second locking mark and the second unlocking mark. During operation, the second driving gear 532 is rotated to adjust the translation of the second support seat 53 relative to the first support seat 52. When the second support seat 53 is translated to a suitable displacement, the second locking member 533 is rotated to lock the second support seat 53 to the extension rod 522, thereby completing a smooth locking.

[0059] In view of the fact that the specific structures of the second driving gear 532, the second locking member 533 and the second visual marker 534 are basically consistent with the corresponding structures and movement relationships of the first support base 52, the specific structures of the second driving gear 532, the second locking member 533 and the second visual marker 534 are not repeated here.

[0060] For further information, please refer to Figure 8 As shown, the second support seat 53 includes a second base 530, and the second bearing member 531 is arranged on the second base 530. For example, the second bearing member 531 is fixedly connected to the surface of the second base 530 or a receiving groove recessed on the surface by welding. The outer edge of the proximal portion of the second base 530 is formed with an arc-shaped outer edge 5301 to match the outer edge of the second driving gear 532. The outer edge of the distal portion of the second base 530 is formed with a clearance portion 5302 lower than the arc-shaped outer edge 5301 to support the second bearing member 531, thereby reducing the overall thickness of the second support seat 53. In some embodiments, in the extension direction parallel to the second bearing member 531, the size of the second base 530 is smaller than the size of the first base 521 to avoid the first bearing member 523 being too long in this direction and prone to fracture defects.

[0061] However, during the operation, the operator usually needs to push and pull the second handle 32 quickly, which can easily cause the gear rack structure of the second support seat 53 to wear out. In serious cases, there is even a risk that the second handle 32 will get stuck and cannot be pushed smoothly. At the same time, the above method of rotating the knob to achieve the forward and backward movement of the delivery system is not in line with the doctor's operating habits in actual surgery. Therefore, for other applications, such as Figure 9-11 As shown, the second support seat 53 includes a second base 530 and a second bearing member 531. The second base 530 is fixedly connected to the extension rod 522, and the second bearing member 531 is designed to be able to push and pull relative to the second base 530, so as to replace the gear rack meshing structure of the second support seat 53, and realize the rapid forward and backward movement of the second handle 22. That is, in this embodiment, the second support seat 53 does not have a second driving gear 532, and the first support seat 52 does not have a second translation track 520. In this embodiment, the sliding friction between the second base 530 and the second bearing member 531 is used to replace the gear rack meshing rolling between the second support seat 53 and the extension rod 522, which not only reduces the degree of wear between each other and prolongs the overall life of the stabilizer 50, but also, given that the sliding friction method has lower resistance than the rolling friction, the risk of the second handle 32 being stuck is further reduced. In addition, this design is more in line with the principle of ergonomics and more humane, thereby significantly improving the operator's operating comfort and surgical effect.

[0062] In some embodiments, the second base 530 is fixedly connected to the extension rod 522, for example, by welding to the surface of the extension rod 522, or the second base 530 is sleeved on the extension rod 522 and then fixedly connected to the outside of the extension rod 522 by laser welding. The second carrier 531 is movably arranged on the second base 530 and can translate relative to the second base 530 along the extension direction parallel to the first translation track 510. Thus, the second conveyor 30 can translate alone along the central axis X under the translation of the second carrier 531 to approach or move away from the first conveyor 20, thereby realizing the single interventional control of the second conveyor 30 during the operation. That is, the present embodiment realizes the synchronous interventional control and the single interventional control of the conveying system by driving the translation of the first support seat 52 and the second carrier 531 respectively, thereby ensuring that the system 100 can adapt to the needs of various surgical scenarios, with good flexibility and stable synchronization.

[0063] Specifically, one of the second base 530 and the second bearing member 531 is provided with a sliding channel 5300a parallel to the first translation track 510, and the other is provided with a sliding rod 5300b, and both ends of the sliding rod 5300b or the sliding channel 5300a are respectively provided with a limiting portion 5300c, and the sliding rod 5300b can slide in the sliding channel 5300a and can be limited in the sliding channel 5300a by the two limiting portions 5300c. Of course, in order to prevent the second bearing member 531 from shifting, the second support seat 53 also includes a third locking member 535 provided on the second base 530. After driving the second bearing member 531 to translate to a suitable displacement, the third locking member 535 is rotated to lock the second bearing member 531 to the second base 530, so as to achieve smooth locking.

[0064] For some applications, the system 100 for delivering a medical device to a patient's heart includes only two conveyors, that is, in order to coordinate the delivery of different medical devices, the delivery system only includes a first conveyor 20 and a second conveyor 30. For other applications, such as for delivering a valve clip 200, please refer again to Figure 1-2As shown, the conveying system also includes a third conveyor 40, and the third conveyor 40 has a third sheath 41 and a third handle 42. The first sheath 21 extends through the third sheath 41 and the third handle 42, and the first handle 22 is located at the proximal side of the third handle 42. The stabilizer 50 also includes a third support seat 54 arranged on the guide rail 51, and the first support seat 52 is located between the second support seat 53 and the third support seat 54. Among them, the third support seat 54 includes a third bearing member 541 extending in a direction away from the guide rail 51. In some embodiments, the third support seat 54 can be movably translated on the first translation track 510 of the guide rail 51 or movably translated on the third translation track (not shown) on the guide rail 51 that is different from the first translation track. In other embodiments, the third support seat 54 is fixedly arranged on the guide rail 51, such as welding.

[0065] Furthermore, in some embodiments, when the third handle 42 is supported on the third supporting member 541, the axial centerline X1 of the third handle 42 coincides with the central axis X, thereby achieving coaxial movement of the third handle 42 relative to the first handle 22 and the second handle 32, thereby completing the delivery of the medical device by the third conveyor 40, such as completing the delivery of the valve clip 200 under the transcatheter pathway.

[0066] In other embodiments, such as Fig.12 As shown, the axial centerline X1 of the third handle 42 is set at an acute angle to the central axis X, and the distal end of the third handle 42 is closer to the guide rail 51, so as to achieve non-coaxial movement of the third handle 42 relative to the first handle 22 and the second handle 32, thereby completing the delivery of the medical device by the third conveyor 40, such as completing the delivery of the valve clip 200 under the transapical path. Specifically, the third bearing seat 54 includes a third base 542, and the third bearing member 541 is fixedly inclined to the third base 542, such as being inclined at a small angle toward the distal end. However, the first bearing member 523 is vertically fixed to the first base 521, and the second bearing member 531 is also vertically fixed to the second base 530, so as to achieve different settings between different bearing members and different bases.

[0067] Of course, in order to ensure that the delivery system can adapt to different puncture hole positions and improve the accuracy and adaptability of the operation, in other embodiments, such as Figure 13-14 As shown, the third bearing seat 54 includes a third bearing member 541 and a third base 542. The third bearing member 541 can be rotatably arranged on the third base 542 to adjust the angle between the axial center line X1 of the third handle 42 and the central axis X, thereby achieving that the angle between the axial center line of the third handle 42 and the central axis X can be changed to a small angle. Fig.14As shown, the third carrier 541 is rotatably connected to the recessed receiving cavity on the third base 542 through a connecting shaft (not numbered), and the third carrier 541 is locked by a locking member 543. During operation, the rotating locking member 543 is spirally advanced or retracted relative to the third base 542 to switch between abutting against the side surface of the third carrier 541 in the receiving cavity of the third base 542 and disengaging from the side surface, thereby achieving locking and disengaging of the third carrier 541.

[0068] It can be understood that the angle adjustment function of the third supporting seat 54 can drive the third handle 42 to rotate flexibly, thereby meeting the needs of the delivery system at different angles, improving the adaptability of the operation, and ensuring that the delivery system can enter the puncture hole at the optimal angle, thereby improving the accuracy of the operation.

[0069] See also Fig.15 As shown, on the basis of the above multiple embodiments, when the third support seat 54 can be movably translated on the first translation track 510, the third support seat 54 further includes a third driving gear 544, a third locking member 545 and a third visual mark 546. The third visual mark 546 has a third locking mark and a third unlocking mark (not numbered), and the third locking member 545 can move between a locked position and an unlocked position relative to the guide rail 51 under the guidance of the third locking mark and the third unlocking mark. It can be understood that, given that the specific structures of the third driving gear 544, the third locking member 545 and the third visual mark 546 and the connection relationship and movement relationship between them are basically the same as those of the first driving gear 524, the first locking member 525 and the first visual mark 526, they will not be repeated here.

[0070] It can be understood that when the first support seat 52 and the third support seat 54 can be movably translated on the first translation track 510 of the guide rail 51, in order to visualize the travel of the first support seat 52 and the third support seat 54 on the guide rail 51, as shown in FIG. Fig.16 As shown, the side surface of the guide rail 51 is provided with a plurality of travel scale marks 511, so that the first support seat 52 and the third support seat 54 can be translated under the guidance of the travel scale marks 511, so as to intuitively judge the displacement distance of the movement. Specifically, the plurality of travel scale marks 511 are arranged at intervals on the side surface of the guide rail 51 along the direction of the first translation track 510, for example, by etching or laser marking.

[0071] Of course, in some embodiments, such as Figure 17-18As shown, the stabilizer 50 also includes a base plate 55 and at least one spacer rod 56, one end of the spacer rod 56 is slidably disposed on the base plate 55, and the other end of the spacer rod 56 carries the guide rail 51. The guide rail 51 and the base plate 55 can be completely separated by the spacer rod 56 to form an acute angle. In view of the complete separation between the guide rail 51 and the base plate 55, the guide rail 51 and the base plate 55 do not need any other separate connection structure, but only need to be separated by the spacer rod, so the structure is simple and the manufacturing cost is low. Then, when the delivery system is carried on the stabilizer 50, the design of the base plate 55 and the spacer rod 56 can position the delivery system at an appropriate approach angle so that the distal end of the delivery system enters the patient's body to promote the delivery of the medical device. The acute angle can be different according to the target site of the medical device, the point of entry into the patient and / or the specific anatomical structure of the patient, and can be an acute angle between 10 degrees and 40 degrees.

[0072] See also Figure 19-20 As shown, in order to ensure that multiple conveyors of the conveying system can move synchronously at the same time to meet the operation requirements during the operation, the guide rail 51 can slide relative to the base plate 55 to synchronously drive the first conveyor 20, the second conveyor 30 and the third conveyor 40 located on the stabilizer 50. Furthermore, the design that the guide rail 51 can slide relative to the base plate 55 can also make the conveying system adaptable to patients of different heights, thereby improving the adaptability of the operation. In other words, the operator can adjust the guide rail 51 according to the height of the patient to adjust the conveying system to the best position for treatment, thereby ensuring the smooth progress of the operation.

[0073] Among them, the spacing rod 56 includes at least two spacing rods arranged at intervals, and at least two sliding tracks 550 are correspondingly provided on the base plate 55, and one end of the at least two spacing rods 56 is respectively slidably arranged on the corresponding at least two sliding tracks 550. Specifically, the base plate 55 is generally a flat square structure. At least two extension blocks 551 are extended from the base 55 at intervals, and the at least two sliding tracks 550 are formed by the surfaces of the at least two extension blocks 551 being recessed inwardly. One end of the at least two spacing rods 56 can slide on the corresponding sliding track 550, and the spacing rod 56 is locked by at least one fastener 552. During operation, the rotating fastener 552 is spirally advanced or retracted relative to the extension block 551 to switch between abutting against the side surface of the spacing rod 56 in the corresponding sliding track 550 and disengaging from the side surface, thereby realizing the locking and disengaging of the spacing rod 56.

[0074] The above is an implementation method of the embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the embodiment of the utility model, several improvements and modifications can be made, and these improvements and modifications are also considered to be within the scope of protection of the utility model. The above is an implementation method of the embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the embodiment of the utility model, several improvements and modifications can be made, and these improvements and modifications are also considered to be within the scope of protection of the utility model.

Claims

1. A system for delivering a medical device to a patient's heart, characterized in that The system comprises: A conveying system, comprising: a first delivery device having a first sheath and a first handle; and a second conveyor having a second sheath and a second handle; wherein the second sheath extends through the first sheath and the first handle, and the second handle is located at the proximal side of the first handle; and A stabilizer, comprising: A guide rail, the guide rail having a first translation track; a first support base movable and translatable on the first translation track, the first support base comprising a first base, an extension rod extending from the first base toward the proximal end, and a first bearing member disposed on the first base and extending in a direction away from the guide rail; and A second support base disposed on the extension rod, the second support base comprising a second bearing member, and the second bearing member extends in a direction away from the extension rod; When the first handle is carried on the first supporting member and the second handle is carried on the second supporting member, the first handle and the second handle can be constructed to form a central axis, and the central axis extends in a direction parallel to the extension direction of the first translation track. The first conveyor and the second conveyor can be synchronously translated along the central axis through the translation of the first support seat.

2. The system according to claim 1, characterized in that The first support seat also includes a first locking member and a first visual mark arranged on the first base, and the first visual mark has a first locking mark and a first unlocking mark; the first locking member can move between a locking position and an unlocking position relative to the guide rail under the guidance of the first locking mark and the first unlocking mark.

3. The system according to claim 1, characterized in that The extension rod is provided with a second translation track, and the extension direction of the second translation track is parallel to the extension direction of the first translation track; the second support seat can be movable and translated on the second translation track, and the second conveyor can be translated independently along the central axis through the translation of the second support seat.

4. The system according to claim 3, characterized in that A limiting portion is disposed at one end of the extension rod close to the first base, and the limiting portion separates the second support seat and the first base to form a gap.

5. The system according to claim 4, characterized in that The limiting portion includes a limiting protrusion, which is arranged on a surface of the extension rod away from the first translation track and extends to form an axial length. The second translation track and the limiting protrusion are located on the same surface of the extension rod and are connected by a reinforcing rib.

6. The system according to claim 3, characterized in that The second support seat also includes a second locking piece and a second visual mark, the second visual mark has a second locking mark and a second unlocking mark; the second locking piece can move between a locking position and an unlocking position relative to the extension rod under the guidance of the second locking mark and the second unlocking mark.

7. The system according to claim 3, characterized in that The first translation track includes a first rack arranged along the axial direction, and the first support seat utilizes a first driving gear to engage with the first rack so as to translate relative to the guide rail; the second translation track includes a second rack arranged along the axial direction, and the second support seat utilizes a second driving gear to engage with the second rack so as to translate relative to the first support seat.

8. The system according to claim 7, characterized in that In an extension direction parallel to the first supporting member, a size of the first base is slightly larger than or equal to the sum of a size of the extension rod and a size of the guide rail.

9. The system according to claim 1, characterized in that The second support seat includes a second base, the second bearing member is movably arranged on the second base, and can translate relative to the second base along an extension direction parallel to the first translation track, and the second conveyor can translate independently along the central axis through the translation of the second bearing member.

10. The system according to claim 9, characterized in that One of the second base and the second supporting member is provided with a sliding channel parallel to the first translation track, and the other is provided with a sliding rod. Both ends of the sliding rod or the sliding channel are respectively provided with a limiting portion. The sliding rod can slide in the sliding channel and can be restricted in the sliding channel by the two limiting portions.

11. The system according to any one of claims 1 to 10, characterized in that: The delivery system further includes a third delivery device having a third sheath and a third handle, the first sheath extending through the third sheath and the third handle, the first handle being located at a proximal side of the third handle; and The stabilizer further comprises a third support seat disposed on the guide rail, the first support seat is located between the second support seat and the third support seat, and the third support seat comprises a third bearing member extending in a direction away from the guide rail; When the third handle is supported on the third supporting member, the axial centerline of the third handle coincides with the central axis, or the axial centerline of the third handle forms an acute angle with the central axis and the distal end of the third handle is closer to the guide rail.

12. The system according to claim 11, characterized in that The third support seat can be movable and translated on the first translation track; the third support seat also includes a third locking piece and a third visual mark, and the third visual mark has a third locking mark and a third unlocking mark; the third locking piece can move between a locking position and an unlocking position relative to the guide rail under the guidance of the third locking mark and the third unlocking mark.

13. The system according to claim 11, characterized in that The third support seat is movable and translated on the first translation track; a plurality of travel scale marks are provided on the side surface of the guide rail so that the first support seat and the third support seat can translate under the guidance of the travel scale marks.

14. The system according to claim 11, characterized in that The third support seat includes a third base, and the third bearing member can be rotatably arranged on the third base to adjust the angle between the axial center line and the central axis.

15. The system of claim 11, wherein: The medical device includes a valve clip, which is detachably connected to the distal end of the second sheath. The second handle can be manipulated to actuate the clamping of the valve clip. The second handle is provided with a clamping observation window and a clamping angle mark to visually display the clamping angle of the valve clip. When the second handle is carried on the second carrier, the clamping observation window and the clamping angle mark face the operator operating the system.

16. The system of claim 15, wherein: The two clamping observation windows are provided. When the second handle is supported on the second supporting member, the two clamping observation windows are symmetrically arranged on both sides of the central axis and each faces the corresponding operator.

17. The system according to any one of claims 1 to 10, characterized in that: The stabilizer also includes a base plate and at least one spacing rod, one end of the spacing rod is slidably disposed on the base plate, and the other end of the spacing rod carries the guide rail; the guide rail and the base plate can be completely separated by the spacing rod and form an acute angle.

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