Atrial appendage clip conveyor

Abstract

The invention discloses an auricular appendage clip conveyor, and relates to the technical field of auricular appendage clip conveying devices. The device comprises a control handle; the clamp body mechanism comprises a pair of clamp arms which can be opened and closed by controlling handles; a cross arm for fixing an auricle clamp is arranged at the tail end of each clamp arm; and the lengths of the two cross arms are smaller than the orthographic projection length of the auricular appendage clip. The shape of the clamp body is more convenient for the auricular appendage clamp to pass through an operation window, the angle, the position and the opening and closing of the auricular appendage clamp in the thoracic cavity are also convenient to adjust, the use is convenient, and the operation time can be shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of auricle clamp delivery devices. BACKGROUND

[0002] An auricle clamp is a medical device used in cardiac intervention or surgery, and its core function is to handle the "auricle" structure of the heart through physical clamping. It is mainly used to prevent stroke (apoplexy) related to atrial fibrillation (atrial fibrillation), and can also assist in solving other clinical problems related to the auricle.

[0003] The existing auricle clamp delivery device mainly uses a thin wire to bundle and fix the auricle clamp in an L-shaped connection structure with a rectangular frame and a handle. Although a hinge is designed in the L-shaped structure to adjust the angle, the auricle clamp cannot adjust the angle of the hinge after entering the chest cavity after the surgical window. The angle of the auricle clamp placed in the surgical window does not match the angle of the auricle clamp installed, so it is very inconvenient to use and increases the operation time. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an auricle clamp delivery device which is more convenient for the auricle clamp to pass through the surgical window and adjust the angle, position, and opening and closing of the auricle clamp in the chest cavity, and can shorten the operation time.

[0005] The technical solution adopted by the present application is: an auricle clamp delivery device, comprising a control handle; a clamp body mechanism, the clamp body mechanism comprising a pair of clamp arms that can be opened and closed by the control handle; the end of each clamp arm is provided with a cross arm for fixing the auricle clamp; and the length of the two cross arms is less than the length of the orthographic projection of the auricle clamp.

[0006] Further optimization of the technical solution, an auricle clamp delivery device, further comprising: a support outer tube having a distal end and a proximal end, the clamp body mechanism being hinged to the distal end of the support outer tube; a connecting rod structure configured for the opening and closing transmission of the pair of clamp arms; a push rod slidably arranged in the internal cavity of the support outer tube; the control handle comprises an upper handle and a lower handle, the upper handle is fixedly connected to the proximal end of the support outer tube, the lower handle is connected to the proximal end of the push rod; The distal end of the push rod is hinged to the connecting rod structure of the forceps body mechanism; the lower handle is configured to be movable relative to the upper handle to drive the push rod to move along its axial direction; when the lower handle is pushed to the distal end to a first stroke, the push rod drives the connecting rod structure to open the forceps arms to the maximum state; when the lower handle is continuously pushed to the distal end to a second stroke, the connecting rod structure enters an over-center state, and the forceps body mechanism is locked by relying on the elastic deformation force of the auricle clamp, at this time, the opening distance of the forceps arms of the forceps body mechanism is adapted to the optimal opening distance of the auricle clamp; when the lower handle is pulled to the proximal end to the beginning of the first stroke, the push rod drives the connecting rod structure to close the forceps arms.

[0007] Further optimization of the technical solution, the middle part of the lower handle is a sleeve structure slidingly sleeved on the proximal end of the supporting outer tube, and the proximal end of the supporting outer tube is provided with a sliding groove; the lower handle is connected with the proximal end of the push rod through a connecting part penetrating through the sliding groove.

[0008] Further optimization of the technical solution, the distal end of the forceps arm is a T-shaped structure.

[0009] Further optimization of the technical solution, one side of each of the transverse arms in the length direction is provided with a guide groove, the guide groove is provided with two guide wires arranged in opposite directions, the other ends of the two guide wires are connected to a sliding sleeve in sequence through the outer side wall of the forceps arm and the supporting outer tube, and the sliding sleeve is in sliding connection with the supporting outer tube in the axial direction. At least two through holes perpendicular to the length direction of the transverse arm are arranged in the guide groove, and the auricle clamp is connected to the guide wire on the corresponding side through the connecting rope through the through hole; and when the guide wire is withdrawn, the auricle clamp is separated from the traction fixation of the transverse arm.

[0010] Further optimization of the technical solution, the transverse arm is provided with a limiting sliding way in the length direction, and the two guide wires penetrate out of the limiting sliding way from the end of the guide groove.

[0011] Further optimization of the technical solution, a C-shaped limiting sleeve is detachably connected to the upper part of the sliding sleeve, and the C-shaped limiting sleeve is used for locking the sliding sleeve at the lowest position.

[0012] In the technical solution disclosed by the application, the auricle clamp is fixed on the transverse arm, the included angle between the transverse arm and the forceps arm can be arranged to be between 80° and 90°, and the length of the transverse arm is less than the length of the orthographic projection of the auricle clamp, instead of the fixing mode of the rectangular frame in the prior art, so that the auricle clamp and the forceps body mechanism are more easily to enter the surgical windowing, and a larger operation space and angle in the chest cavity is obtained.

[0013] The forceps body mechanism can support the auricle clamp in the locked state, so that the surgeon does not have to hold the upper handle and the lower handle all the time to keep the auricle clamp in the supporting state. When it is needed to close the auricle clamp, the upper handle and the lower handle are held, so that when the lower handle passes the second stroke, the auricle clamp drives the forceps body mechanism to close under the action of the elastic force of the auricle clamp itself. The operation is simple and labor-saving, and is beneficial to improving the stability of the operation of the surgeon.

[0014] Other technical effects of the present application will be gradually clear in the development of the embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural schematic diagram of an embodiment 1 of the present application; Figure 2 A structural schematic diagram of an embodiment 1 of the present application; Figure 1 A structural schematic diagram of an embodiment 1 of the present application; Figure 3 A structural schematic diagram of an embodiment 2 of the present application; Figure 4 A structural schematic diagram of an embodiment 2 of the present application; Figure 5 A structural schematic diagram of an embodiment 2 of the present application; Figure 6 A structural schematic diagram of an embodiment 2 of the present application;

[0016] In the figure, 1, auricular clamp; 2, support outer tube; 2-1, sliding groove; 3, clamp body mechanism; 3-1, connecting rod structure; 3-1-1, connecting rod; 3-1-2, central interface; 3-2, clamp arm; 3-2-1, limiting sliding way; 4, cross arm; 4-1, guide groove; 4-2, through hole; 5, push rod; 6, upper handle; 7, lower handle; 7-1, connecting part; 8, guide wire; 9, sliding sleeve; 10, C-shaped limiting sleeve; 11, connecting rope; 12, operation handle DETAILED DESCRIPTION EMBODIMENT

[0017] As shown in the figure, an auricular clamp delivery device comprises: Figures 1-2 An operation handle 12; A clamp body mechanism 3, the clamp body mechanism 3 comprising a pair of clamp arms 3-2 which can be opened and closed by operating the handle 12; the end of each of the clamp arms 3-2 is provided with a cross arm 4 for fixing the auricular clamp 1; and the length of the two cross arms 4 is less than the length of the orthographic projection of the auricular clamp 1. The length of the cross arm 4 is less than the length of the orthographic projection of the auricular clamp 1, which is more flexible when the auricular clamp 1 is passing through the surgical window.

[0018] The operation handle is a general concept, comprising various structures which can realize the opening and closing of the clamp body mechanism,

[0019] and Figure 1 the operation handle shown in the figure is only the simplest example. Figure 2 EMBODIMENT

[0020] As shown in the figure, Figure 3 ​​Unlike Embodiment 1, the aortic clamp delivery device of this embodiment further includes: Supporting outer tube 2, which has a distal end and a proximal end; Linkage structure 3-1, wherein the link structure 3-1 is configured for the opening and closing transmission of the pair of clamp arms 3-2; The push rod 5 is slidably inserted into the internal cavity of the supporting outer tube 2; The control handle includes an upper handle 6 and a lower handle 7. The upper handle 6 is fixedly connected to the proximal end of the supporting outer tube 2, and the lower handle 7 is connected to the proximal end of the push rod 5. The distal end of the push rod 5 is hinged to the linkage structure 3-1 of the clamp mechanism 3. The lower handle 7 is configured to move relative to the upper handle 6 to drive the push rod 5 to move along its axial direction. When the lower handle 7 is pushed to the distal end to the first stroke, the push rod 5 drives the linkage structure 3-1 to open the clamp arm 3-2 to the maximum state. After the lower handle 7 is pushed to the distal end and reaches the second stroke, the linkage structure 3-1 enters the over-center state, and the clamp mechanism 3 maintains the lock by relying on the elastic deformation force of the heart ear clamp 1 itself. At this time, the opening distance of the clamp arm 3-2 of the clamp mechanism 3 is matched with the optimal opening distance of the heart ear clamp 1. When the lower handle 7 is pulled to the proximal end to the beginning of the first stroke, the push rod 5 drives the linkage structure 3-1 to close the clamp arm 3-2.

[0021] like Figure 3 The image shows the open state of the aortic clamp 1. Holding the upper handle 6 and lower handle 7, the lower handle 7 pulls the push rod 5. The push rod 5 pulls the central connecting piece 3-1-2 of the connecting rod structure 3-1. Before the connecting rod 3-1-1 exceeds the equilibrium point, the two clamp arms 3-2 are in an open state. After the connecting rod 3-1-1 exceeds the equilibrium point, continuing to pull the push rod 5 causes the two connecting rods 3-1-1 to drive the two clamp arms 3-2 into a closed state, eventually closing completely. The equilibrium point here refers to the position where the two connecting rods 3-1-1 are collinear with the push rod 5. At this position, the two connecting rods 3-1-1 are perpendicular to the push rod 5, and the aortic clamp 1 opens to its maximum angle.

[0022] like Figure 4 The heart ear clamp 1 is shown in the closed state. At this time, the lower handle 7 is pushed in the opposite direction, causing the push rod 5 to push the central connecting piece 3-1-2. Before the connecting rod 3-1-1 exceeds the balance point, the two clamp arms 3-2 are in an open motion state. After exceeding the balance point, under the action of the rebound force of the heart ear clamp 1, the push rod 5 will be pulled down. After reaching the second stroke of the lower handle 7, the elastic locking is maintained. The lower handle 7 stops at the end of the second stroke. It can be limited by setting one or more limit points at the hinge of the lower handle 7 and the supporting outer tube 2, the hinge of the connecting rod structure 3-1, and the hinge of the clamp arm 3-2 and the supporting outer tube 2.

[0023] The ear clip 1 and the horizontal arm 4 can be fixed by binding with thin rope.

[0024] like Figure 6 As shown, in a further optimized embodiment, the middle part of the lower handle 7 is a sleeve structure that slides onto the proximal end of the supporting outer tube 2, and the proximal end of the supporting outer tube 2 is provided with a groove 2-1; the lower handle 7 is connected to the proximal end of the push rod 5 through a connecting part 7-1 that passes through the groove 2-1. The middle part of the lower handle 7 passes through the supporting outer tube 2 and is connected to the proximal end of the push rod 5. This structure is relatively simple, and the way of holding the upper handle 6 and the lower handle 7 can close the heart and ear clip 1, which is more in line with operating habits.

[0025] like Figure 5 As shown, this embodiment is further optimized by making the end of the clamp arm 3-2 a T-shaped structure. The T-shaped structure occupies less space for fixing the atrial appendage clamp 1, and the atrial appendage clamp 1 is subjected to symmetrical and balanced forces, making it more stable during operation. The atrial appendage clamp 1 is bound to the horizontal arm 4 of the T-shaped structure, so that the atrial appendage clamp 1 is rotated with the center of the length direction of the atrial appendage clamp 1 as the rotation point, which occupies the least space and makes it easier to make the atrial appendage clamp 1 fit into the atrial appendage at the optimal angle.

[0026] like Figure 5 As shown, this embodiment is further optimized. Each of the horizontal arms 4 is provided with a guide groove 4-1 on one side in the length direction. There are two guide wires 8 arranged in opposite directions in the guide groove 4-1. The other ends of the two guide wires 8 pass through the clamp arm 3-2 and the outer wall of the support outer tube 2 in sequence and are connected to a sliding sleeve 9. The sliding sleeve 9 is axially slidably connected to the support outer tube 2. The guide groove 4-1 has at least two through holes 4-2 perpendicular to the length of the cross arm 4. The aortic clip 1 is connected to the guide wire 8 on the corresponding side through the through holes 4-2 via the connecting rope 11. When the guide wire 8 is removed, the aortic clip 1 is released from the traction and fixation of the cross arm 4.

[0027] The optimization of this embodiment differs from the prior art. In the prior art, the thin rope used to bind the atrial appendage clip 1 is typically cut with surgical scissors after the atrial appendage clip 1 is released, and then removed. Since the atrial appendage clip 1 is already clamped on the atrial appendage, the exposed operating portion is very small, and the operating view inside the chest cavity is affected. Therefore, cutting and removing the binding rope is time-consuming and laborious. The optimized solution of this embodiment is to bind the connecting rope 11 to the guide wire 8 through the through hole 4-2. After the guide wire 8 is withdrawn, the connecting rope 11 will separate from the cross arm 4. In this way, after removing the entire atrial appendage clip delivery device, a larger operating space and field of vision will be exposed. When cutting and removing the connecting rope 11, since the guide wire 8 is withdrawn, the connecting rope 11 has extra circumference and is easier to capture and cut.

[0028] like Figure 4As shown, in a further optimized embodiment, the clamp arm 3-2 is provided with a limiting slide 3-2-1 in the length direction, through which the two guide wires 8 pass from the end of the guide groove 4-1 and through the limiting slide 3-2-1. The limiting slide 3-2-1 can protect the guide wires 8 and reduce their exposure to accidental pulling that could cause the atrial appendage clamp 1 to fall off.

[0029] like Figure 3 As shown in the further optimization of this embodiment, a C-shaped limiting sleeve 10 is detachably connected to the upper part of the sliding sleeve 9 and the supporting outer tube 2. The C-shaped limiting sleeve 10 is used to lock the sliding sleeve 9 in the lowest position.

[0030] The function of the C-type limiting sleeve 10 is to temporarily lock the sliding sleeve 9 to prevent the sliding sleeve 9 from being accidentally pulled and causing the heart and ear clip 1 to fall off.

[0031] In this invention, the atrial appendage clip 1 can be fixed to the transverse arm 4 in a strapped state, and packaged as an integral device with the atrial appendage clip delivery device. During packaging, the atrial appendage clip 1 is kept in a closed state to prevent its elasticity from failing. This makes it more convenient to use as a complete consumable and saves surgical time.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

Claims

1. A cardiac auricle clamp delivery device, characterized in that, include Control handle; The clamping mechanism includes a pair of clamp arms that can be opened and closed by a control handle; each clamp arm has a horizontal arm at its end for securing the aortic clamp; and the length of the two horizontal arms is less than the projected length of the aortic clamp.

2. The aortic clip delivery device according to claim 1, characterized in that... Also includes: The outer support tube has a distal end and a proximal end; A linkage structure configured for the opening and closing transmission of the pair of clamp arms; The push rod is slidably inserted into the internal cavity of the supporting outer tube; The control handle includes an upper handle and a lower handle, with the upper handle fixedly connected to the proximal end of the supporting outer tube. The lower handle is connected to the proximal end of the push rod; The distal end of the push rod is hinged to the linkage structure of the clamp mechanism; the lower handle is configured to move relative to the upper handle to drive the push rod to move axially: when the lower handle is pushed distally to the first stroke, the push rod drives the linkage structure to open the clamp arms to the maximum state; after the lower handle is pushed distally to the second stroke, the linkage structure enters the over-center state, and the clamp mechanism maintains the lock by the elastic deformation force of the aorta clamp itself. At this time, the opening distance of the clamp arms of the clamp mechanism matches the optimal opening distance of the aorta clamp; when the lower handle is pulled proximally to the beginning of the first stroke, the push rod drives the linkage structure to close the clamp arms.

3. The aortic clip delivery device according to claim 2, characterized in that: The lower handle has a sleeve structure that slides onto the near end of the outer support tube, and the near end of the outer support tube has a groove. The lower handle is connected to the near end of the push rod through a connecting part that passes through the groove.

4. A cardiac auricle clamp delivery device according to any one of claims 1-3, characterized in that: The end of the clamp arm has a T-shaped structure.

5. A cardiac auricle clamp delivery device according to claim 2 or 3, characterized in that: Each of the aforementioned cross arms has a guide groove on one side along its length. The guide groove contains two guide wires arranged in opposite directions. The other ends of the two guide wires pass through the clamp arm and the outer wall of the support outer tube in sequence and are connected to a sliding sleeve. The sliding sleeve is axially slidably connected to the support outer tube. The guide groove has at least two through holes perpendicular to the length of the horizontal arm. The aortic clamp is connected to the guide wire on the corresponding side through the through holes by a connecting rope. When the guide wire is removed, the aortic clamp is released from the traction and fixation of the horizontal arm.

6. The aortic clip delivery device according to claim 5, characterized in that: The clamp arm is provided with a limiting slide in the length direction, and the two guide wires pass through the limiting slide from the end of the guide groove.

7. The aortic clip delivery device according to claim 5, characterized in that: The upper part of the sliding sleeve is detachably connected to a C-shaped limiting sleeve on the outer support tube. The C-shaped limiting sleeve is used to lock the sliding sleeve in the lowest position.

Images