CN221105928U - Split type conveying actuator and conveying device - Google Patents

Abstract

The application relates to a split type conveying actuator, which comprises a clamp arm and a split type parallel opening and closing mechanism; the two clamp arms are pivotally connected with the split parallel opening and closing mechanism; the opposite-opening type parallel opening and closing mechanism comprises a pivot seat and a swinging arm; the pivot seat is arranged between the two clamp arms; the swing arm is pivotally connected with the pivot seat, and the swing arm can be symmetrically unfolded or folded around the center of the pivot seat; the distal end of the swinging arm is pivotally connected with the corresponding forceps arm, and the proximal end of the swinging arm is slidably connected with the corresponding forceps arm, so that the swinging arm can be symmetrically unfolded or folded around the center of the pivot seat, and the two forceps arms can be caused to be opened or closed in parallel and symmetrically. From this, the head end size of split type transport executor reduces, sends into the degree of difficulty and reduces, can adopt the mode of wicresoft, stretches into to the patient in, and the operation wound is less relatively, and the hemorrhage is few, resumes soon, does not need great operation space in the focus, reduces operation degree of difficulty and whole risk. A conveying device is also provided.

Description

Split type conveying actuator and conveying device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a split type conveying actuator and a conveying device.

Background

Atrial fibrillation is one of the most common arrhythmia clinically, and the stroke caused by atrial fibrillation has serious consequences, and the mortality and disability rate reach 70%. For patients with valvular atrial fibrillation, 57% of the atrial thrombus is derived from the left atrial appendage, and for patients with non-valvular atrial fibrillation, 90% of the left atrial thrombus is derived from the left atrial appendage. Even after restoration of sinus rhythm, left atrial appendage contraction is inhibited, and thrombus may still be formed.

At present, three methods for clinically preventing atrial fibrillation and ischemic cerebral apoplexy are mainly adopted. One method is to take anticoagulants such as warfarin, but warfarin has a certain bleeding risk, and frequent monitoring is needed, more contraindications are needed, and clinical application is difficult; in addition, warfarin has the potential to cause osteoporosis and soft tissue necrosis; the second method is that the left auricle is directly excised or ligated in the same period of cardiac surgery, the main disadvantage of the method is that the complete closure rate of the left auricle is low, and previous researches show that the success rate of completely resecting the left auricle is about 80% at most; the third method is to close the left auricle through an instrument, and percutaneous intervention is performed on the left auricle plugging operation product in the heart, but the existing instrument is complex in structure, high in risk and to be verified in safety and effectiveness.

The conveying executor of current auricle clamp is equipped with the frame that slightly takes the square in the front end generally to be convenient for bind in it with the auricle clamp, the auricle clamp includes two parallel arms, keeps the clamp of two arms with two spring portions at both ends, carries the frame of executor, and the arm of auricle clamp is held to the rope that utilizes the haulage, thereby can pull open the auricle clamp in order to take advantage of the rope that pulls in, thereby can drive the auricle clamp to send to focus department and carry out the outer closed operation of left auricle heart. However, the outer frame of the existing delivery actuator is larger, so that the difficulty of delivery is larger, and a larger operation space is required at the focus, which also makes the operation of the closed operation difficult and has higher risk.

Disclosure of utility model

The present utility model aims to provide a split type conveying actuator, which solves the above problems.

In order to achieve the above object of the present utility model, the following technical solutions are adopted:

In a first aspect, the application provides a split-type conveying actuator, comprising a clamp arm and a split-type parallel opening and closing mechanism;

the two clamp arms are pivotally connected with the split parallel opening and closing mechanism;

The split type parallel opening and closing mechanism comprises a pivot seat and a swinging arm;

the pin joint seat is arranged between the two clamp arms;

The swing arm is pivotally connected with the pivot seat, and can be symmetrically unfolded or folded around the center of the pivot seat;

The distal end of the swinging arm is pivotally connected with the corresponding forceps arm, and the proximal end of the swinging arm is slidably connected with the corresponding forceps arm, so that the swinging arm can be symmetrically unfolded or folded around the center of the pivot seat, and the two forceps arms can be caused to be opened or closed in parallel and symmetrically.

Further, a drive mechanism is included and is pivotally connected to the distal or proximal end of the swing arm.

Further, the swing arm comprises two arm bodies, the two arm bodies are arranged in an X shape, and the two arm bodies are pivotally connected with the pivot seat.

Further, a first accommodating space is arranged in the pivot seat;

The swing arm is arranged in the first accommodating space and is pivotally connected with the pivot seat;

The surfaces of the two clamp arms facing the pivot seat are respectively provided with a second accommodating space;

The distal end of the swing arm is disposed in the second accommodation space of the corresponding jawarm and is pivotally connected to the corresponding jawarm, and the proximal end of the swing arm is disposed in the second accommodation space of the corresponding jawarm and is slidably connected to the corresponding jawarm.

Further, every the tong arm all includes binding clip, transition seat and the connecting seat that connects gradually, the transition seat is followed the orientation the direction protrusion setting of pin joint seat forms the bulge, the bulge with the head between the connecting seat is used for holding the corresponding side of pin joint seat, be provided with in the connecting seat the second accommodation space.

Further, a sliding groove communicated with the second accommodating space is formed in the side wall of the connecting seat;

the proximal end of the swing arm is in sliding connection with the corresponding sliding groove on the forceps arm.

Further, the clamp head is provided with a pin joint seat, and the clamp head is provided with a protrusion part which is arranged on the surface of the pin joint seat, and the protrusion part is provided with a positioning groove;

The notch of the positioning groove of the two forceps heads is arranged oppositely to form a containing groove for containing the proximal end of the to-be-implanted object;

The support plate of the implant to be implanted and the clamp head are in arc transition.

Further, each of the forceps heads is provided with a threading hole on the surface facing away from the pivoting seat, each threading hole comprises a first threading hole and a second threading hole, the first threading holes penetrate through the forceps heads and penetrate out from the forceps heads towards the surface of the pivoting seat, and the second threading holes penetrate through the forceps heads and the support plate to be implanted in sequence and penetrate out from the support plate to be implanted towards the side wall of the first threading hole.

Further, each clamp head is provided with a wire leading groove on the surface deviating from the pivot seat, and the wire leading groove is communicated with the first threading hole and the second threading hole.

Further, the driving mechanism comprises a control line and two driving arms, the two driving arms are arranged in the first accommodating space of the pivoting seat, the proximal ends of the two driving arms are pivotally connected with the distal ends of the two arm bodies, the distal ends of the two driving arms are overlapped and pivotally connected to form a closed end, and the closed end is slidably connected with the pivoting seat;

The control line is connected to the closed end.

Further, a boss is arranged on the inner wall of the first accommodating space of the pivot seat, the two arm bodies are connected with the boss in a pivotable manner, a certain distance is reserved between the boss and the far end of the pivot seat, so that a chute can be arranged on the inner wall of the first accommodating space of the pivot seat, and the chute is horizontally collinear with but not communicated with the boss;

the closing end is in sliding connection with the sliding groove.

Further, the driving mechanism comprises a push rod and two driving arms, the two driving arms are arranged in the first accommodating space of the pivoting seat, the distal ends of the two driving arms are pivotally connected with the proximal ends of the two arm bodies, the proximal ends of the two driving arms are overlapped and pivotally connected to form a closed end, and the closed end penetrates through the proximal end of the pivoting seat;

The pushrod is connected to the closed end.

Further, a boss is arranged on the inner wall of the first accommodating space of the pivot seat, and the two arm bodies are pivotally connected with the boss;

A chute is arranged on the boss;

the closing end is in sliding connection with the sliding groove.

Further, a boss is arranged on the inner wall of the first accommodating space of the pivot seat, and the two arm bodies are pivotally connected with the boss;

The connecting rod of the operating handle connected with the pivot seat is internally provided with a central limiting block, and the push rod is arranged in the pipe cavity and penetrates through the central limiting block to be connected to the closed end.

Further, the opposite surfaces of the two driving arms are respectively provided with a yielding groove, and the opposite surfaces of the two arm bodies are respectively provided with a yielding groove.

Further, a limiting rod is arranged on the boss.

Further, a through hole or a through groove is formed in the proximal end of the pivoting seat, and the through hole or the through groove is communicated with the first accommodating space.

Further, the surfaces of the two clamp arms facing away from each other are arc-shaped surfaces.

In a second aspect, the present application provides a conveying apparatus comprising an operating handle and a split conveying actuator as described above;

the split delivery actuator is used for connecting an implant to be implanted;

the operating handle comprises a connecting rod and a control mechanism, and the connecting rod is connected with the proximal end of the pivoting seat;

The control mechanism passes through the lumen of the linkage rod, and the control mechanism is operatively connected with the swing arm through a drive mechanism to operate the split delivery actuator.

By adopting the technical scheme, the utility model has the following beneficial effects:

When the split type conveying actuator is used for left auricle closing operation, the two clamp arms can be driven to be opened or closed in parallel and symmetrically through the split type parallel opening and closing mechanism, so that the size of the head end of the split type conveying actuator can be reduced as far as possible, the split type conveying actuator stretches into a patient body through a wound to perform closing operation, the feeding difficulty is reduced, the split type conveying actuator stretches into the patient body in a minimally invasive mode, the split type conveying actuator is relatively small in surgical wound, little in bleeding and quick in recovery, a large operation space is not needed at a focus, the operation difficulty of the closing operation is reduced, and finally the overall risk of the closing operation is reduced.

In addition, the split type conveying actuator removes the existing rectangular auricle clamp fixing outer frame, simplifies the structure, facilitates operation, has the characteristics of simple structure, convenient operation and stable operation because the swinging arms are symmetrically unfolded or folded around the center of the pivot seat, and ensures stable and reliable action process of the two clamp arms in the process of parallel and symmetrical opening or closing of the two clamp arms by symmetrically unfolding or folding the swinging arms around the center of the pivot seat.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first view of a split-type delivery actuator with two jawarms open in parallel and symmetrically;

FIG. 2 is a schematic view of a second perspective structure of a split-type delivery actuator with two jawarms open in parallel and symmetrically;

FIG. 3 is a schematic view of a third perspective of a split-type delivery actuator having two jawarms open in parallel and symmetrically;

FIG. 4 is a schematic view of a first view of a split-type delivery actuator with two jawarms closed in parallel and symmetrically;

FIG. 5 is a schematic view of a second perspective of a split-type delivery actuator having two jawarms that are parallel and symmetrically closed;

FIG. 6 is a schematic view of a third perspective of a split-type delivery actuator having two jawarms that are parallel and symmetrically closed;

fig. 7 is a schematic diagram of the positional relationship between the swing arm and the driving mechanism (the pivotal seat is not shown) of the split-type conveying actuator according to the first embodiment when the two clamp arms are in the parallel and symmetrical closed state;

Fig. 8 is a schematic diagram of the positional relationship between the swing arm and the driving mechanism (the pivotal seat is not shown) when the two clamp arms are opened in parallel and symmetrically in the split-type conveying actuator according to the first embodiment;

fig. 9 is a schematic structural view of a pivot seat according to the first embodiment;

FIG. 10 is a schematic view of the positional relationship between two arms and an implant to be implanted when the two arms are in a parallel and symmetrically opened state in a split-type delivery actuator according to the first embodiment;

FIG. 11 is a schematic illustration of the positional relationship between two jawarms and an implant to be implanted when the two jawarms are in a parallel and closed state in accordance with the first embodiment of the split-type delivery actuator;

FIG. 12 is a schematic diagram showing a connection relationship between a driving mechanism and a pivot base of a first structure of a split type conveying actuator according to the second embodiment; (the side of the pivot seat near the outer side is not shown);

fig. 13 is a schematic structural view of a pivot seat of a first structure of a split type conveying actuator according to the second embodiment;

FIG. 14 is a schematic diagram showing a connection relationship between a driving mechanism and a pivot base of a second structure of a split type conveying actuator according to the second embodiment (a side of the pivot base near the outer side is not shown);

FIG. 15 is a schematic view of a pivot seat of a second embodiment of a split-type delivery actuator;

Fig. 16 is a schematic diagram showing the connection relationship between the connecting rod of the operation handle and the pivot seat of the split type conveying actuator in the third embodiment.

Reference numerals: 1-a clamp arm; 2-a parallel opening and closing mechanism; 21-a pivot seat; 22-swinging arms; 3-a driving mechanism; 221-arm body; 4-a first accommodation space; 5-connecting rods; 6-a second accommodation space; 11-clamp heads; 12-a transition seat; 13-connecting seats; 14-a projection; 7-a chute; 8-a sliding block; 9-a support plate for the implant; 10-positioning grooves; 15-threading holes; 151-a first threading aperture; 152-a second threading aperture; 16-a wire slot; 31-driving arm; 17-boss; 18-a yielding groove; 19-a limit rod; 211-through holes; 20-closed end; 32-pushing rod; 23-auricle clip; 231-clamp arms; 232-elastic clamps; 24-distal end; 25-proximal end; 26-connecting rod; 261-lumen; 27-a central limiting block; 212-through slots.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiment one:

as shown in fig. 1-11, the split type conveying actuator of the application comprises a clamp arm 1 split type parallel opening and closing mechanism 2;

the two clamp arms 1 are arranged in parallel, and the two clamp arms 1 are pivotally connected with the split parallel opening and closing mechanism 2;

the split parallel opening and closing mechanism 2 comprises a pivot seat 21 and a swinging arm 22;

The pivot seat 21 is arranged in parallel between the two clamp arms 1;

The swing arm 22 is pivotally connected to the pivot base 21, and the swing arm 22 can be symmetrically unfolded or folded around the center of the pivot base 21;

the distal end 24 of the swing arm 22 is pivotally connected to the corresponding jawarms 1, and the proximal end 25 of the swing arm 22 is slidably connected to the corresponding jawarms 1, such that the swing arm 22 is symmetrically unfolded or folded about the center of the pivot mount 21, enabling the two jawarms 1 to be opened or closed in parallel and symmetrically.

When the split type conveying actuator is used for left auricle closing operation, the two clamp arms 1 can be driven to be opened or closed in parallel and symmetrically through the split type parallel opening and closing mechanism 2, so that the size of the head end of the split type conveying actuator can be reduced as far as possible, the split type conveying actuator stretches into a patient through a wound to perform closing operation, the feeding difficulty is reduced, the split type conveying actuator stretches into the patient in a minimally invasive mode, the split type conveying actuator stretches into the patient, the operation wound is relatively small, bleeding is less, recovery is rapid, a large operation space is not needed at a focus, the operation difficulty of the closing operation is reduced, and finally the overall risk of the closing operation is reduced.

In addition, the split type conveying actuator of the application removes the existing rectangular auricle clip fixing outer frame, simplifies the structure, facilitates the operation, has the characteristics of simple structure, convenient operation and stable operation because the swing arm 22 is symmetrically unfolded or folded around the center of the pivot seat 21, and ensures stable and reliable action process of the two clamp arms 1 in the process of opening or closing the two clamp arms 1 in parallel and symmetrically by the symmetrical unfolding or folding of the swing arm 22 around the center of the pivot seat 21.

Specifically, a drive mechanism 3 is also included, the drive mechanism 3 being pivotally connected to the distal end 24 of the swing arm 22.

In practical use, in order to be able to more conveniently control the deployment or folding of the swing arm 22, the present application adds a drive mechanism 3 for controlling the deployment or folding of the swing arm 22.

Specifically, the swing arm 22 includes two arm bodies 221, the two arm bodies 221 are disposed in an X-shape, and the two arm bodies 221 are pivotably connected to the pivot base 21.

Specifically, a first accommodating space 4 is provided in the pivot seat 21, a swing arm 22 is provided in the first accommodating space 4, two arm bodies 221 of the swing arm 22 are pivotally connected with the pivot seat 21 through a connecting rod 5, and the surfaces of the two clamp arms 1 facing the pivot seat 21 are respectively provided with a second accommodating space 6;

Distal ends 24 of the two arm bodies 221 of the swing arm 22 are disposed in the second accommodation space 6 of the corresponding jawarm 1 and are pivotably connected to the jawarm 1, and preferably, distal ends 24 of the two arm bodies 221 are provided with connecting rods 5, which are pivotably connected to the corresponding jawarm 1 via the connecting rods 5, and proximal ends 25 of the two arm bodies 221 of the swing arm 22 are disposed in the second accommodation space 6 of the corresponding jawarm 1 and are slidably connected to the jawarm 1, and proximal ends 25 of the two arm bodies 221 are slidably movable along the length direction of the jawarm 1.

In order to further reduce the size of the head end of the split type conveying actuator (the head end can be understood as the far end 24 of the split type conveying actuator), a first accommodating space 4 is arranged in the pivot seat 21, a second accommodating space 6 is respectively arranged on the surfaces of the two clamp arms 1 facing the pivot seat 21, and a movement space is reserved for the swinging arm 22 through the cooperation of the first accommodating space 4 and the second accommodating space 6, namely, when the two clamp arms 1 are required to be opened in parallel and symmetrically, the first accommodating space 4 and the second accommodating space 6 are arranged to provide a movement space for the expansion of the X-shaped arm body 221; when two forceps arms 1 are required to be closed in parallel and symmetrically, the arrangement of the first accommodating space 4 and the second accommodating space 6 provides a movement space for folding the X-shaped arm body 221, and can also play a role in accommodating the X-shaped arm body 221.

The arrangement fully utilizes the space of the pivot seat 21 and the two clamp arms 1, and provides a structural basis for reducing the head end size of the split type conveying actuator.

Preferably, the length direction of the first accommodating space 4 is consistent with the length direction of the pivot seat 21, and the length direction of the second accommodating space 6 is consistent with the length direction of the clamp arm 1, so that the better matching with the two arm bodies 221 can be ensured, and the first accommodating space 4 and the second accommodating space 6 can not interfere with the movement of the two arm bodies 221.

Specifically, each jawarm 1 includes a jaw 11, a transition seat 12 and a connection seat 13 that connect gradually, the transition seat 12 deviates from the surface of the pivot seat 21, and the surface parallel and level that deviates from the pivot seat 21 with the connection seat 13 sets up, and the transition seat 12 bulges along the direction towards the pivot seat 21 and sets up and forms bulge 14, and the head between bulge 14 and the connection seat 13 is used for holding the corresponding side of pivot seat 21, is provided with second accommodation space 6 in the connection seat 13.

The drop between the protruding part 14 and the connecting seat 13 is used for accommodating the corresponding side of the pivot seat 21, so that the drop between the protruding part 14 and the connecting seat 13 is ensured, and interference is not caused to the corresponding side of the pivot seat 21; the drop between the protruding part 14 and the clamp head 11 is used for limiting the installation position of the to-be-implanted object on the clamp head 11, improving the accuracy of the installation position of the to-be-implanted object on the clamp head 11, preventing the installation positions of the to-be-implanted object on the two clamp arms 1 from being changed, affecting the subsequent operation, and improving the success rate of the operation.

Specifically, the side wall of the connecting seat 13 is provided with a sliding groove 7 communicated with the second accommodating space 6, and the proximal ends 25 of the two arm bodies 221 are provided with sliding blocks 8 matched with the sliding grooves 7 on the corresponding forceps arms 1.

Preferably, the sliding groove 7 coincides with the length direction of the second accommodation space 6, so that the proximal ends 25 of the two arms 221 can slide along the length direction of the jawarm 1.

Specifically, the clamp further comprises a support plate 9 to be implanted, wherein the support plate 9 to be implanted is respectively arranged on the surfaces of the two clamp heads 11 facing the pivot seat 21, and a positioning groove 10 is arranged between the protruding part 14 and the support plate 9 to be implanted;

the notches of the positioning slots 10 of the two binding clip 11 are arranged opposite each other, forming a receiving slot for receiving the proximal end 25 of the implant to be implanted.

According to the application, the bearing plates 9 to be implanted are respectively arranged on the surfaces of the two clamp heads 11 facing the pivot seat 21, the bearing plates 9 to be implanted on the two clamp heads 11 are matched for use, the bearing function of the to-be-implanted is realized, and the to-be-implanted is prevented from falling off from between the two clamp heads 11.

The above-mentioned drop between the protruding portion 14 and the clamp head 11 is used for limiting the mounting position of the implant to be implanted on the clamp head 11, and the proximal end 25 of the implant to be implanted in this structure can only perform a limiting but not have a fixing function, so on the basis of the above-mentioned structure, the positioning groove 10 is arranged between the drop between the protruding portion 14 and the clamp head 11 and the support plate 9 of the implant to be implanted, the notch of the positioning groove 10 of the two clamp heads 11 are oppositely arranged, so as to form a containing groove for containing the proximal end 25 of one end of the implant to be implanted, and the containing groove cooperates with the drop between the protruding portion 14 and the clamp head 11, so that the mounting position of the implant to be implanted on the clamp head 11 can be limited, and the fixing function can be performed on the implant to be implanted.

Preferably, the distal end 24 of the support plate 9 to be implanted is flush or non-flush with the distal end 24 of the binding clip 11. The present application uses the distal end 24 of the support plate 9 to be implanted to be flush with the distal end 24 of the binding clip 11.

Preferably, the arc transition arrangement is adopted between the support plate 9 of the to-be-implanted article and the clamp head 11, so that the to-be-implanted article can be prevented from being scratched to the greatest extent in the process of installing the to-be-implanted article between the two clamp arms 1, and the to-be-implanted article is required to be implanted into a human body, so that the overall structure of the to-be-implanted article is relatively precise, and any external scratch is likely to influence the structural strength of the to-be-implanted article.

Specifically, each of the forceps heads 11 is provided with a threading hole 15 on a surface facing away from the pivoting seat 21, the threading holes 15 are distributed along the length direction of the forceps head 11, the threading holes 15 each include a first threading hole 151 and a second threading hole 152, the first threading holes 151 penetrate the forceps heads 11 and penetrate out from the forceps heads 11 toward the surface of the pivoting seat 21, and the second threading holes 152 penetrate the forceps heads 11 and the support plate 9 to be implanted in sequence and penetrate out from the support plate 9 to be implanted toward the side wall of the first threading holes 151.

In order to facilitate the routing of binding wires (not shown) during the process of fixing the implant to the two binding heads 11, the application is provided with threading holes 15 on the surface of each binding head 11 facing away from the pivot seat 21, the threading holes 15 are distributed along the length direction of the binding heads 11, and the binding wires pass through the first threading holes 151 and the second threading holes 152 to bind the implant to the binding heads 11 on the corresponding sides, thereby realizing the binding connection of the implant to the two binding heads 11.

It should be noted that, the manner in which the implant is connected to the binding head 11 by the binding wire is the prior art, and will not be described here.

Specifically, a wire guiding groove 16 is provided on the surface of each clamp head 11 facing away from the pivot seat 21, the wire guiding groove 16 is provided along the length direction of the clamp head 11, and the wire guiding groove 16 is provided in communication with the first wire through hole 151 and the second wire through hole 152.

On the basis that the threading holes 15 include the first threading holes 151 and the second threading holes 152, in order to further facilitate the routing of the binding wires (not shown) and prevent the binding wires from being exposed, the application is provided with the threading grooves 16 on the surface of each binding clip 11 facing away from the pivoting seat 21, and the threading grooves 16 are communicated with the first threading holes 151 and the second threading holes 152 of each group of threading holes 15, so that the binding wires can be hidden in the threading grooves 16, and enter the binding clips 11 through the first threading holes 151 and the second threading holes 152 of each group of threading holes 15, thereby realizing the purpose of hiding the routing of the binding wires.

Specifically, the driving mechanism 3 includes a control line (not shown) and two driving arms 31, the two driving arms 31 are disposed in the first accommodation space 4 of the pivoting seat 21, the proximal ends 25 of the two driving arms 31 are pivotably connected to the distal ends 24 of the two arm bodies 221 through the connecting rod 5, the distal ends 24 of the two driving arms 31 overlap and are pivotably connected to form a closed end 20, the closed end 20 is slidably connected to the pivoting seat 21, the proximal end 25 of the pivoting seat 21 is provided with a through hole 211, and the through hole 211 is disposed in communication with the first accommodation space 4; the control line is connected to the closed end 20 through the through hole 211.

The through hole 211 has a function that, in addition to the function for the passage of the control wire as described above, the through hole 211 has a function that the binding wire of the operating handle is introduced into the wire guide groove 16 of each of the binding heads 11 from the 5 through hole 211 of the pivotal seat 21, and the binding wire (not shown) is respectively passed through the first and second wire guide holes 151 and 152 to bind the implant to be implanted to the corresponding binding heads 11.

Specifically, the inner wall of the first accommodating space 4 of the pivot seat 21 is provided with a boss 17, two arm bodies 221 of the swing arm 22 are pivotally connected with the boss 17 through the connecting rod 5, and a certain distance is provided between the boss 17 and the distal end 24 of the pivot seat 21, so that a chute 7 can be arranged on the inner wall of the first accommodating space 4 of the pivot seat 21, and the chute 7 is horizontally collinear with but not communicated with the boss 17; the closing end 20 is in sliding connection with the chute 7, and a sliding block 8 matched with the chute 7 is arranged on the closing end 20.

By the arrangement of the chute 7, the closing ends 20 of the two driving arms 31 can be guided along the chute 7, so that the two driving arms 31 are symmetrically unfolded or folded, the two driving arms 31 which are symmetrically unfolded or folded, the two arm bodies 221 which are symmetrically unfolded or folded, and the two forceps arms 1 are parallel and symmetrically unfolded or closed.

Specifically, the opposing surfaces of the two driving arms 31 are respectively provided with the relief grooves 18, and the opposing surfaces of the two arm bodies 221 are respectively provided with the relief grooves 18.

By providing the relief grooves 18 on the opposite surfaces of the two drive arms 31, interference of the two drive arms 31 during relative rotation is prevented.

By providing the relief grooves 18 on the opposite surfaces of the two arms 221, the occurrence of interference of the two arms 221 during relative rotation is prevented.

Specifically, the boss 17 is provided with a stopper rod 19.

Preferably, the axial direction of the stopper rod 19 is perpendicular to the length direction of the boss 17.

In order to limit the opening angle of the two arm bodies 221 of the swing arm 22, the limiting rod 19 is arranged on the boss 17 of the pivot seat 21, when any arm body 221 touches the limiting rod 19, the two arm bodies 221 reach the maximum opening and closing angle, and at the moment, the two clamp arms 1 are in the limit positions of parallel and symmetrical opening states.

It should be noted that, by adjusting the mounting position of the limit lever 19 on the boss 17, the maximum opening and closing angle of the two arms 221 can be adjusted, so as to adjust the vertical distance when the two jawarms 1 are in the parallel and symmetrical open state.

Specifically, the surfaces of the two clamp arms 1 facing away from each other are arc-shaped surfaces, so that the external shape of the split type conveying actuator is smooth, the external shape of the split type conveying actuator is prevented from damaging organs of a human body in conveying operation, and meanwhile the split type conveying actuator is convenient to enter or leave the human body.

Referring to fig. 10 and 11, the implant to be implanted is an auricle clip 23, and the auricle clip 23 includes two clip arms 231 and elastic clips 232, the clip arms 231 are arranged in parallel, and two ends of the clip arms 231 are integrally connected through the elastic clips 232, respectively.

Still further, the resilient clamp 232 is a resilient clamp arm.

In use, the two clamping arms 231 of the auricle clamp 23 are supported by the corresponding implant-to-be-supported support plate 9, and the holding groove for holding the proximal end 25 of the implant to be implanted is formed by the positioning grooves 10 arranged opposite to the notch, so as to limit and fix one of the elastic clamping members 232.

The binding wire passes through the first threading hole 151 and the second threading hole 152 to bind the two clamping arms 231 of the auricle clamp 23 to the corresponding binding heads 11, respectively, thereby realizing the binding connection of the auricle clamp 23 and the binding heads 11.

The working process of the split type conveying actuator in the first embodiment is as follows:

The two clamping arms 231 of the auricle clamp 23 are supported by the support plate 9 of the implant, the proximal end 25 of the auricle clamp 23 is limited and fixed by the containing groove, the binding wire passes through the first threading hole 151 and the second threading hole 152, the two clamping arms 231 of the auricle clamp 23 are bound between the two clamping arms 1, and the two clamping arms 1 are in a closed state under the action of the closing force of the auricle clamp 23, and the split type conveying actuator removes the existing rectangular auricle clamp fixing outer frame, so that the split type conveying actuator can extend into a patient in a minimally invasive manner by means of a stamping card without using an open chest operation.

During the use, firstly, implant transport and stab the card and establish the passageway in the patient, then, the transport executor of facing away is in the patient of entering through transport stab the card, the pulling control line, the control line is acted on to closed end 20, the pulling force that the control line received directly is acted on the closed end 20 of two actuating arms 31, the control line makes closed end 20 along the spout 7 in the pin joint seat 21, towards the direction of being close to the proximal end 25 of swing arm 22, in this way, the contained angle between two actuating arms 31 is adjusted, make two actuating arms 31 progressively and symmetrically expand in from first accommodation space 4 and second accommodation space 6, two actuating arms 31 of progressively and symmetrically expand, the direction of leading proximal end 25 of two arm 221 to the distal end 24 of two arm 221 slides, make the distance between proximal end 25 of two arm 221 and the distal end 24 of two arm 221 shorten, thereby adjust the contained angle between two arm 221, and then realize the progressively and symmetrically expand of two arm 221, make two pincers 1 move towards each other direction, by this end, two pincers 1 draw-out from each other, two parallel ear 23 and two parallel ear 23 open, and open the two parallel ear 23, and open the two ear 23, the side of the clamp 23 after opening, the two ear 23.

After the auricle clamp 23 is released, the two forceps arms 1 are in a parallel free opening and closing state, and in the process that the split type conveying actuator is withdrawn from the patient, a reset spring can be installed between the two arms 221, therefore, after the auricle clamp 23 is released, the closing force of the reset spring directly acts on the closing ends 20 of the two driving arms 31 through the two arms 221, the closing ends 20 are enabled to slide along the sliding grooves 7 of the pivoting seat 21 towards the direction far away from the proximal ends 25 of the swinging arms 22, the included angle between the two driving arms 31 is adjusted, the two driving arms 31 are enabled to be gradually and symmetrically folded and are accommodated in the first accommodating space 4 and the second accommodating space 6, the two driving arms 31 which are gradually and symmetrically folded are enabled to slide towards the direction far away from the distal ends 24 of the two arms 221, the distance between the proximal ends 25 of the two arms 221 and the distal ends 24 of the two arms 221 is enabled to be prolonged, the included angle between the two arms 221 is enabled to be adjusted, and further the two arms 221 are enabled to be gradually and symmetrically folded, the two forceps arms 1 are accommodated in the first accommodating space 4 and the second accommodating space 6, the two forceps arms 1 are enabled to be gradually and symmetrically folded towards each other, and the patient is enabled to be conveniently withdrawn from the patient, and the two forceps arms 1 are enabled to move towards each other in parallel directions and are enabled to be mutually and symmetrically and to move towards each other.

Embodiment two:

The split type conveying actuator according to the second embodiment of the present application is different from the first embodiment in that the connection relationship between the driving mechanism 3 and the pivot seat 21 is different from that of the first embodiment, and the connection relationship between the driving mechanism 3 and the pivot seat 21 in the second embodiment has two structures, the first structure is shown in fig. 12 and 13, and the second structure is shown in fig. 14 and 15.

The first configuration is described below, and as shown in fig. 12 and 13, the split type conveying actuator of the second embodiment: the driving mechanism 3 comprises a push rod 32 and two driving arms 31, the two driving arms 31 are arranged in the first accommodating space 4 of the pivot seat 21, the distal ends 24 of the two driving arms 31 are pivotally connected with the proximal ends 25 of the two arm bodies 221 through the connecting rod 5, the proximal ends 25 of the two driving arms 31 are overlapped and pivotally connected to form a closed end 20, the proximal ends 25 of the pivot seat 21 are provided with through grooves 212 communicated with the first accommodating space 4, and the closed end 20 penetrates through the proximal ends 25 of the pivot seat 21 through the through grooves 212; a pushrod 32 is connected to the closed end 20.

The through groove 212 has a function that, in addition to the function for the closing end 20 to be penetrated out as described above, the through groove 212 has a function that the binding wire of the operating handle is introduced into the lead groove 16 of each of the jaws 11 from the through groove 212 of the pivotal seat 21, and the binding wire (not shown) is respectively passed through the first and second threading holes 151 and 152 to bind the implant to be implanted to the corresponding jaw 11.

Specifically, the inner wall of the first accommodation space 4 of the pivot seat 21 is provided with a boss 17, and two arm bodies 221 of the swing arm 22 are pivotably connected with the boss 17 through the connecting rod 5;

The boss 17 is provided with a chute 7;

The closing end 20 is in sliding connection with the chute 7, and a sliding block 8 matched with the chute 7 is arranged on the closing end 20.

By means of the sliding groove 7, the closing ends 20 of the two driving arms 31 can be guided along the sliding groove 7, the two driving arms 31 are enabled to be symmetrically unfolded or folded, the two driving arms 31 which are symmetrically unfolded or folded enable the two arm bodies 221 to be symmetrically unfolded or folded, and the two arm bodies 221 which are symmetrically unfolded or folded enable the two forceps arms 1 to be kept in a parallel and symmetrical state when being unfolded or closed.

The working process of the split type conveying actuator adopting the first structure is as follows:

The two clamping arms 231 of the auricle clamp 23 are supported by the support plate 9 of the implant, the proximal end 25 of the auricle clamp 23 is limited and fixed by the containing groove, the binding wire passes through the first threading hole 151 and the second threading hole 152, the two clamping arms 231 of the auricle clamp 23 are bound between the two clamping arms 1, and the two clamping arms 1 are in a closed state under the action of the closing force of the auricle clamp 23, and the split type conveying actuator removes the existing rectangular auricle clamp fixing outer frame, so that the split type conveying actuator can extend into a patient in a minimally invasive manner by means of a stamping card without using an open chest operation.

During the use, firstly, implant transport and stab the card in the patient and establish the passageway, then, the transport executor of opposite opening is in the patient of entering through transport stab the card, promote push rod 32, the push rod 32 receives the thrust direct action to the closed end 20 of two actuating arms 31, push rod 32 makes the closed end 20 along the spout 7 in the pin joint seat 21, slide towards the direction near the distal end 24 of swing arm 22, with this adjustment contained angle between two actuating arms 31, make two actuating arms 31 from first accommodation space 4 and second accommodation space 6 in the gradual symmetrical expansion, two actuating arms 31 of gradual symmetrical expansion, make the proximal end 25 of two arm 221 slide towards the direction of the distal end 24 of two arm 221, make the distance between proximal end 25 of two arm 221 and the distal end 24 of two arm 221 shorten, thereby adjust the contained angle between two arm 221, and then realize the gradual symmetrical expansion of two arm 221, through the gradual symmetrical expansion of two arm 221, can make two tong arms 1 move towards each other direction that keeps away from each other, by this, and by this, two parallel ear pair of 23 open, and open the two ear pair of parallel clip 23, open the clip 23, open after the two ear pair of parallel clip 23 is opened, open, the clip 23 is opened, open, and the clip 23 is left to open.

After the auricle clamp 23 is released, the two forceps arms 1 are in a parallel free opening and closing state, during the process that the split type conveying actuator is withdrawn from the patient, the push rod 32 is pulled reversely, the pulling force born by the push rod 32 directly acts on the closed ends 20 of the two driving arms 31 through the two arm bodies 221, the closed ends 20 are caused to slide along the sliding grooves 7 in the pivoting seat 21 towards the direction away from the distal ends 24 of the swinging arms 22, so that the included angle between the two driving arms 31 is adjusted, the two driving arms 31 are gradually and symmetrically folded and are accommodated in the first accommodating space 4 and the second accommodating space 6, the two driving arms 31 which are gradually and symmetrically folded are caused to slide towards the direction away from the distal ends 24 of the two arm bodies 221, the distance between the proximal ends 25 of the two arm bodies 221 and the distal ends 24 of the two arm bodies 221 is prolonged, the included angle between the two arm bodies 221 is adjusted, the two gradually and symmetrically folded arm bodies 221 are further realized and are accommodated in the first accommodating space 4 and the second accommodating space 6, and the two forceps arms 1 which are gradually and symmetrically folded are caused to move towards each other in a direction away from the distal ends 24 of the two arms 221, so that the two forceps arms 1 are conveniently withdrawn from the patient in parallel.

In addition to the above-described sliding engagement of the closing end 20 with the chute 7, a second construction is also possible, which is described below, as shown in fig. 14 and 15, in which the first receiving space 4 of the pivoting seat 21 is provided with a boss 17 on its inner wall, and the two arms 221 of the swing arm 22 are pivotally connected to the boss 17 by means of the connecting rod 5;

A central limiting block 27 is arranged in a tube cavity 261 of a connecting rod 26 of an operating handle connected with the pivot seat 21, a push rod 32 passes through the central limiting block 27 and is connected to the closed end 20, and the closed end 20 is connected with the push rod 32 through the connecting rod 5.

By the arrangement of the central limiting block 27, the push rod 32 can guide along the axial direction of the connecting rod 26, the push rod 32 enables the closed ends 20 of the two driving arms 31 to guide along the axial direction of the connecting rod 26, the two driving arms 31 are enabled to be symmetrically unfolded or folded, the two arm bodies 221 are enabled to be symmetrically unfolded or folded, and the two forceps arms 1 are enabled to be parallel and symmetrically unfolded or closed.

The difference between the mode of the second structure in which the central stopper 27 is matched with the push rod 32 and the mode of the first structure in which the closed end 20 is slidably matched with the chute 7 is that the guiding modes are different, the second structure is that the central stopper 27 guides the movement direction of the push rod 32, the push rod 32 guides the movement direction of the closed end 20, and under the action of the push rod 32, the two driving arms 31 are driven to be symmetrically unfolded or folded.

The first structure is that the closing ends 20 of the two driving arms 31 are matched with the sliding groove 7 to guide the movement direction of the closing ends 20, and the two driving arms 31 are driven to be symmetrically unfolded or folded under the action of the sliding groove 7.

Both of the above-mentioned guiding methods are aimed at ensuring the symmetrical unfolding or folding of the two driving arms 31, and only the two driving arms 31 can be unfolded or folded symmetrically to promote the symmetrical unfolding or folding of the two arms 221, and only the symmetrical unfolding or folding of the two arms 221 can promote the two jawarms 1 to be unfolded or closed in parallel and symmetrically.

The working process of the split type conveying actuator adopting the second structure is as follows:

The two clamping arms 231 of the auricle clamp 23 are supported by the support plate 9 of the implant, the proximal end 25 of the auricle clamp 23 is limited and fixed by the containing groove, the binding wire passes through the first threading hole 151 and the second threading hole 152, the two clamping arms 231 of the auricle clamp 23 are bound between the two clamping arms 1, and the two clamping arms 1 are in a closed state under the action of the closing force of the auricle clamp 23, and the split type conveying actuator removes the existing rectangular auricle clamp fixing outer frame, so that the split type conveying actuator can extend into a patient in a minimally invasive manner by means of a stamping card without using an open chest operation.

During the use, firstly, implant transport and stab the card in the patient and establish the passageway, then, the transport executor of facing away is in the patient of entering through transport stab the card, promote push rod 32, push rod 32 receives the thrust direct action to the closed end 20 of two arm bodies 31, because push rod 32 is limited by central stopper 27, push rod 32 can only be along the axis direction of connecting rod 26, push rod 32 makes closed end 20 to be moved towards the direction that is close to distal end 24 of swing arm 22, thereby the contained angle between two actuating arms 31 is adjusted, make two actuating arms 31 progressively symmetrical expansion in from first accommodation space 4 and second accommodation space 6, two actuating arms 31 of progressively symmetrical expansion, the proximal end 25 of two arm bodies 221 slides towards the direction of distal end 24 of two arm bodies 221, make the distance between the proximal end 25 of two arm bodies 221 and the distal end 24 of two arm bodies 221 shorten, thereby the contained angle between the two arm bodies 221 is adjusted, and then the progressively symmetrical expansion of realizing the two arm bodies 221, can make two pincers 1 face each other root and move towards two ears 23, two parallel to each other, two opposite ears 23 draw out from each other, two opposite ears 23 open the two parallel to each other, and open the two parallel clamp 23 after carrying out the two parallel clamp 23, open the two clamp 23, open the opposite ears 23, open and open the two clamp 23 symmetrically.

After the auricle clamp 23 is released, the two forceps arms 1 are in a parallel free opening and closing state, in the process that the split type conveying actuator withdraws from the patient, the push rod 32 is pulled reversely, the pulling force born by the push rod 32 directly acts on the closed ends 20 of the two driving arms 31 through the two arms 221, the closed ends 20 are promoted to move towards the direction away from the distal ends 24 of the swinging arms 22, the included angle between the two driving arms 31 is adjusted, the two driving arms 31 are gradually and symmetrically folded and are accommodated in the first accommodating space 4 and the second accommodating space 6, the two driving arms 31 which are gradually and symmetrically folded are promoted to slide towards the direction away from the distal ends 24 of the two arms 221, the distance between the proximal ends 25 of the two arms 221 and the distal ends 24 of the two arms 221 is prolonged, the included angle between the two arms 221 is adjusted, the two arms 221 are gradually and symmetrically folded, and are accommodated in the first accommodating space 4 and the second accommodating space 6, the two forceps arms 1 are gradually and symmetrically folded, the two forceps arms 1 are enabled to move towards each other, and are promoted to be withdrawn from the patient in parallel, and the patient is promoted to withdraw from the body through the symmetrical forceps body.

In the first or second structure described above, referring to the first embodiment, the boss 17 is provided with the stopper rod 19, and the maximum opening/closing angle of the two arms 221 is limited by the stopper rod 19.

Embodiment III:

The third embodiment provides a conveying device, which comprises an operating handle and the split conveying actuator in the embodiment;

the split delivery actuator is used for connecting an implant to be implanted;

The operating handle comprises a connecting rod 26 and a control mechanism (not shown), wherein the connecting rod 26 is connected with the proximal end of the pivot seat 21;

The control mechanism passes through the lumen 261 (lumen 261 is shown in fig. 14) of the link 26 and is operatively connected with the swing arm 22 by a drive mechanism to operate the split delivery actuator, i.e., the control mechanism provides a power source for the drive mechanism 3, which enables the swing arm 22 to be symmetrically unfolded or folded about the center of the pivot mount 21 by the drive mechanism 3, which enables the two jawarms 1 to be opened or closed in parallel and symmetrically.

It is noted that the present disclosure relates only to the construction of split-type delivery actuators that can be used in conjunction with prior art control mechanisms, and therefore, in the following description, only the specific construction of the split-type delivery actuator will be described, while the construction of the other parts of the operating handle can be referred to as corresponding parts in the prior art.

In particular, according to the first embodiment of the present application, the control mechanism (not shown) is operatively connected to the two arm bodies 221 of the swing arm 22 through the control line (not shown) of the driving mechanism 3 and the two driving arms 31, so as to drive the swing arm 22 to be symmetrically unfolded or folded around the center of the pivot seat 21, and enable the two jawarms 1 to be opened or closed in parallel and symmetrically.

In particular, in the second embodiment of the present application, the control mechanism (not shown) is operatively connected to the two arm bodies 221 of the swing arm 22 through the push rod 32 and the two driving arms 31 of the driving mechanism 3, so as to drive the swing arm 22 to be symmetrically unfolded or folded around the center of the pivot seat 21, and can cause the two jawarms 1 to be opened or closed in parallel and symmetrically.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (19)

1. The split type conveying actuator is characterized by comprising a clamp arm and a split type parallel opening and closing mechanism;

the two clamp arms are pivotally connected with the split parallel opening and closing mechanism;

The split type parallel opening and closing mechanism comprises a pivot seat and a swinging arm;

the pin joint seat is arranged between the two clamp arms;

The swing arm is pivotally connected with the pivot seat, and can be symmetrically unfolded or folded around the center of the pivot seat;

The distal end of the swinging arm is pivotally connected with the corresponding forceps arm, and the proximal end of the swinging arm is slidably connected with the corresponding forceps arm, so that the swinging arm can be symmetrically unfolded or folded around the center of the pivot seat, and the two forceps arms can be caused to be opened or closed in parallel and symmetrically.

2. The split delivery actuator of claim 1, further comprising a drive mechanism pivotally connected to the distal or proximal end of the swing arm.

3. The split delivery actuator of claim 2, wherein the swing arm comprises two arms, the two arms being disposed in an X-shape, the two arms being pivotally connected to the pivot mount.

4. A split delivery actuator as claimed in claim 3, wherein the pivot mount has a first receiving space disposed therein;

The swing arm is arranged in the first accommodating space and is pivotally connected with the pivot seat;

The surfaces of the two clamp arms facing the pivot seat are respectively provided with a second accommodating space;

The distal end of the swing arm is disposed in the second accommodation space of the corresponding jawarm and is pivotally connected to the corresponding jawarm, and the proximal end of the swing arm is disposed in the second accommodation space of the corresponding jawarm and is slidably connected to the corresponding jawarm.

5. The split type conveying actuator according to claim 4, wherein each clamp arm comprises a clamp head, a transition seat and a connecting seat which are sequentially connected, the transition seat is convexly arranged along the direction towards the pivoting seat to form a protruding portion, the fall between the protruding portion and the connecting seat is used for accommodating the corresponding side of the pivoting seat, and the second accommodating space is arranged in the connecting seat.

6. The split type conveying actuator as claimed in claim 5, wherein a chute which is communicated with the second accommodating space is arranged on the side wall of the connecting seat;

the proximal end of the swing arm is in sliding connection with the corresponding sliding groove on the forceps arm.

7. The split type delivery actuator of claim 5, further comprising a support plate to be implanted, wherein the support plate to be implanted is respectively installed on the surfaces of the two forceps heads facing the pivoting seat, and a positioning groove is arranged between the protruding part and the support plate to be implanted;

The notch of the positioning groove of the two forceps heads is arranged oppositely to form a containing groove for containing the proximal end of the to-be-implanted object;

The support plate of the implant to be implanted and the clamp head are in arc transition.

8. The split delivery actuator of claim 7, wherein each of the jaws is provided with a threading aperture on a surface facing away from the pivoting seat, the threading apertures each including a first threading aperture extending through the jaws and out from the jaws toward the surface of the pivoting seat, and a second threading aperture extending sequentially through the jaws and the support plate to be implanted and out from the support plate to be implanted toward a side wall of the first threading aperture.

9. The split delivery actuator of claim 8, wherein each of the jaws has a wire guide groove disposed on a surface thereof facing away from the pivot mount, the wire guide grooves being in communication with the first and second wire guide holes.

10. The split delivery actuator of claim 4, wherein the drive mechanism comprises a control wire and two drive arms disposed within the first receiving space of the pivot mount, the proximal ends of the two drive arms being pivotally connected to the distal ends of the two arms, the distal ends of the two drive arms overlapping and pivotally connected to form a closed end, the closed end being slidably connected to the pivot mount;

The control line is connected to the closed end.

11. The split type conveying actuator as claimed in claim 10, wherein a boss is provided on an inner wall of the first accommodation space of the pivoting seat, two of the arm bodies are pivotably connected to the boss, and a distance is provided between the boss and a distal end of the pivoting seat so that a chute can be provided on the inner wall of the first accommodation space of the pivoting seat, the chute being horizontally collinear with but not communicating with the boss;

the closing end is in sliding connection with the sliding groove.

12. The split delivery actuator of claim 4, wherein the drive mechanism comprises a push rod and two drive arms disposed within the first receiving space of the pivot mount, the distal ends of the two drive arms being pivotably connected to the proximal ends of the two arms, the proximal ends of the two drive arms overlapping and pivotably connected to form a closed end, the closed end extending through the proximal end of the pivot mount;

The pushrod is connected to the closed end.

13. The split type conveying actuator as claimed in claim 12, wherein a boss is provided on an inner wall of the first accommodation space of the pivot base, and two of the arm bodies are pivotably connected to the boss;

A chute is arranged on the boss;

the closing end is in sliding connection with the sliding groove.

14. The split type conveying actuator as claimed in claim 12, wherein a boss is provided on an inner wall of the first accommodation space of the pivot base, and two of the arm bodies are pivotably connected to the boss;

The connecting rod of the operating handle connected with the pivot seat is internally provided with a central limiting block, and the push rod is arranged in the pipe cavity and penetrates through the central limiting block to be connected to the closed end.

15. A split conveying actuator as claimed in claim 10 or 12, wherein the opposing surfaces of the two drive arms are provided with respective relief grooves, and the opposing surfaces of the two arms are provided with respective relief grooves.

16. The split delivery actuator of claim 11, 13 or 14, wherein the boss is provided with a stop bar.

17. The split delivery actuator as claimed in claim 11, 13 or 14, wherein the proximal end of the pivoting seat is provided with a through hole or a through slot, which is provided in communication with the first accommodation space.

18. The split delivery actuator of claim 1, wherein the surfaces of the two jawarms facing away from each other are arcuate surfaces.

19. A delivery device comprising an operating handle and the split delivery actuator of any one of claims 1-18;

the split delivery actuator is used for connecting an implant to be implanted;

the operating handle comprises a connecting rod and a control mechanism, and the connecting rod is connected with the proximal end of the pivoting seat;

The control mechanism passes through the lumen of the linkage rod, and the control mechanism is operatively connected with the swing arm through a drive mechanism to operate the split delivery actuator.