CN117426815A - Cardiac intervention suturing device with puncture part fixing structure - Google Patents

Abstract

Embodiments of the present application provide a cardiac interventional suturing device with a puncture part fixation structure. The puncture part is fixed through a first fixation part, the rotation of the first fixation part is controlled through the suturing part to expand the puncture part, and the first retraction is controlled through a driving mechanism. The second fixing part is arranged on the second fixing part to close the unfolded first fixing part to close the puncture part; the second fixing part is arranged on the second fixing part to close the deployed second fixing part. The puncture part is fixed after the tissue near the site is to be sutured; the second fixed part is provided with a pulling part connected to the driving mechanism, and the pulling part is controlled by the driving mechanism to drive the second fixing part to expand to perform the puncture after penetrating the tissue near the site to be sutured. The sutures on the back of the tissue near the site to be sutured are knotted to complete the suture. The suture device of this application has no remaining implants in the patient's body, no inherent risk of septal occlusion, no embolism caused by the implant, and no implants. There is no risk of thrombosis or late erosion caused by intrusion, and there is no risk of arrhythmias, etc.

Description

A cardiac interventional suturing device with a puncture part fixation structure

Technical field

Each embodiment of the present application belongs to the field of clinical surgical instruments, and more specifically, relates to a cardiac interventional suturing device with a puncture part fixation structure.

Background technique

Congenital heart disease refers to abnormalities in the physical structure or function of the heart or large blood vessels in the chest due to formation disorders or abnormal development of the heart and great blood vessels during embryonic development, or failure to close channels that should be automatically closed after birth. These include ventricular septal defect, atrial septal defect, patent foramen ovale, etc.

Currently, with the development of science and technology, these unclosed channels can be blocked and closed through interventional blocking surgery.

The occluder has been used clinically for more than 20 years and is a very mature medical device. However, because the occluder is an implanted foreign body relative to the human body, there is a risk of causing embolism and arrhythmia. Most importantly, the patient needs to take anticoagulant drugs, and the use of a metal occluder will reduce important surgical access. blocked.

Even though degradable occluders are currently available, so that the surgical access is not blocked, degradable occluders are still implants and need to be degraded and metabolized in the patient's body, which may still cause the risk of embolism, and they are better than ordinary metal seals. Blockers are more expensive.

Therefore, surgical methods that reduce the risk of embolism, reduce patient implants, and reduce patient treatment costs are urgently needed in clinical practice.

Contents of the invention

In order to solve the above-mentioned technical problems existing in the existing occluder when blocking unclosed channels, embodiments of the present application provide a cardiac interventional suturing device with a puncture part fixation structure, including: a puncture part, a gathering part , the first fixing part, the second fixing part, the suturing part and the driving mechanism;

The gathering part includes a first gathering part and a second gathering part. The first end of the first gathering part is connected to the first fixing part. The second end of the first gathering part is connected to the driving mechanism. Through the The driving mechanism controls the first gathering part to gather the unfolded first fixing part; the second gathering part is provided on the second fixing part and is used to gather the unfolded second fixing part. The second fixing part The part is used to fix the puncture part after penetrating the tissue near the site to be sutured;

The suture portion is surrounded by a first tube, the first fixing portion is rotatably connected to the first end of the first tube, and the second end of the first tube is connected to the driving mechanism. Driving the first tube to drive the puncture part to move toward or away from the second fixed part;

The first end of the suturing part passes through the first fixing part and is connected to the puncture part, the second end of the suturing part is connected to the third fixing part, and the puncture part is arranged on the first fixing part On the other hand, the suturing part is used to control the rotation of the first fixing part to expand the puncture part;

The second fixed part is rotatably arranged on the first tube, and a push-pull part connected to the driving mechanism is provided on the second fixed part. The push-pull part is controlled by the driving mechanism to drive the second fixed part to expand to penetrate the target. The punctured part is fixed after suturing the tissue near the site.

As a preferred embodiment of the present application, the first fixing part and the second fixing part are arranged oppositely.

As a preferred embodiment of the present application, the first tube is surrounded by a second tube, the push-pull part is provided between the first tube and the second tube, and one end of the push-pull part away from the driving mechanism passes through the second tube. The tube is connected to the second fixing part.

As a preferred embodiment of the present application, a fourth fixing part and a fifth fixing part are provided on the periphery of the first tube, the fourth fixing part is arranged on the first end of the first tube, and the fifth fixing part is arranged on The first end of the second tube, the first fixing part is rotationally connected to the first tube or the fourth fixing part, the second fixing part is rotationally connected to the first tube or the fifth fixing part, the The second end of the first tube is connected to the driving mechanism, and the second end of the second tube is connected to the holding member.

As a preferred embodiment of the present application, the fourth fixing part is provided with a first through hole, and the suturing part passes through the first through hole and is connected to the puncture part.

As a preferred embodiment of the present application, the first tube, puncture part, second fixing part and fifth fixing part are distributed on the same side of the first fixing part.

As a preferred embodiment of the present application, a first rotating part is provided on the first tube or the fourth fixed part, and the first fixed part is rotationally connected to the first rotating part.

As a preferred embodiment of the present application, the first fixing part includes a plurality of first fixing parts distributed at intervals, and each first fixing part is provided with a second through hole and a third through hole, and the tail part of the puncture part It is arranged in the second through hole, and the first end of the first gathering part is fixed in the third through hole.

As a preferred embodiment of the present application, the second fixing part includes a plurality of second fixing pieces and fixing sleeves arranged in one-to-one correspondence. The fixing sleeve is rotationally connected to the second fixing piece. The second fixing piece Rotally connected to the first tube, the first end of the push-pull member is connected to the second fixing member, and the second end of the push-pull member is connected to the driving mechanism.

As a preferred embodiment of the present application, the fifth fixing part is provided with a second rotating part, the second fixing part is provided with a third rotating part, and the second fixing part is connected to the second rotating part through the second rotating part. The fifth fixing part is rotatably connected, and the fixing sleeve is rotatably connected to the second fixing part through the third rotating part.

As a preferred embodiment of the present application, the length of the second fixing part is the same as that of the first fixing part.

As a preferred embodiment of the present application, a plurality of the first fixing members, the second fixing members and the fixing sleeves are all distributed around the periphery of the first tube in the folded state or the unfolded state.

As a preferred embodiment of the present application, each fixed sleeve is provided with a fourth through hole, and the second gathering member passes through the fourth through hole to string together all the fixed sleeves.

As a preferred embodiment of the present application, the second gathering part is an elastic member.

As a preferred embodiment of the present application, the fixing sleeve is further provided with at least one fifth through hole, and the fifth through hole is provided with a buckle. The buckle is used to fix the thread after penetrating the tissue of the site to be sutured. Puncture part.

As a preferred embodiment of the present application, a guide portion is provided at an end of the fixing sleeve away from the second fixing component.

As a preferred embodiment of the present application, the outer hole diameter of the guide part is larger than the hole diameter of the fixed sleeve body.

As a preferred embodiment of the present application, the piercing part includes a plurality of piercing parts, and the piercing parts are respectively arranged in one-to-one correspondence with the first fixing part and the second fixing part.

As a preferred embodiment of the present application, the piercing piece includes a piercing piece body and a tip portion that are connected to each other. The piercing piece body is a hollow columnar structure, and the suture portion passes through the piercing piece body and is connected to the tip portion.

As a preferred embodiment of the present application, the push-pull part includes a plurality of push-pull parts, the push-pull parts are arranged in one-to-one correspondence with the second fixing part, the second fixing part is provided with a sixth through hole, and the One end of the push-pull component is fixed in the sixth through hole, and the other end is connected to the driving mechanism.

As a preferred embodiment of the present application, a third tube is provided on the periphery of the first tube, and the fifth fixing part is limited on the periphery of the third tube.

As a preferred embodiment of the present application, the center of the third tube is provided with a seventh through hole in the axial direction, the side wall of the third tube is provided with a plurality of eighth through holes in the axial direction, and the inner wall of the fifth fixing part is connected to the inner wall of the fifth fixing part. The eighth through hole is connected to the external network card.

As a preferred embodiment of the present application, the first gathering part has a plurality of gathering pieces, and the gathering pieces are arranged in the eighth through hole and are arranged in one-to-one correspondence with the eighth through hole.

As a preferred embodiment of the present application, the driving mechanism includes a first driving mechanism, a second driving mechanism and a third driving mechanism. The first driving mechanism is connected to the first tube and is used to drive the first tube to drive puncture. The second driving mechanism is connected with the first gathering part and is used to drive the first gathering part to gather the first fixed part. The third driving mechanism is connected with the push-pull part. The push-pull part is connected to the second fixed part for driving the push-pull part to unfold the second fixing part.

As a preferred embodiment of the present application, the first driving mechanism includes a screw and a nut, the screw and the nut are threadedly connected, the screw is connected to the first pipe, and one end of the screw away from the first pipe is connected to the third pipe. Three fixed parts are connected, and the second driving mechanism and the third driving mechanism are buttons.

As a preferred embodiment of the present application, the first driving mechanism, the second driving mechanism and the third driving mechanism are all provided on the holding member _.

Compared with the prior art, embodiments of the present application provide a suturing device with a puncture part fixing structure. The embodiment of the present application fixes the puncture part through a first fixing part, and controls the rotation of the first fixing part through the suturing part. The puncture part is expanded, and the first gathering part is controlled by the driving mechanism to gather the unfolded first fixing part; the second gathering part is provided on the second fixing part, and is used to tighten the unfolded second fixing part. When folded, the second fixing part is used to fix the puncture part that penetrates the tissue near the site to be sutured; the second fixing part is provided with a push-pull part connected to the driving mechanism, and the push-pull part is controlled by the driving mechanism to drive the third part. The two fixing parts are deployed to fix the puncture part that has penetrated the tissue near the site to be sutured. When the puncture part penetrates the tissue near the site to be sutured and is fixed by the second fixing part, the sutures on the tissue near the site to be sutured are fixed. Tie the knot to complete the stitching. By suturing the site to be sutured with the suturing device provided in the embodiment of the present application, there is no remaining implant in the patient's body, no inherent risk of septal occlusion, no embolism caused by the implant, and no risk of arrhythmia, etc.

Description of the drawings

The drawings described here are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. Some specific embodiments of the present application will be described in detail below by way of illustration and not limitation with reference to the accompanying drawings. In the drawings, like reference numerals designate the same or similar components or portions. It will be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the drawings:

Figure 1 is a schematic diagram of the overall side structure of the suturing device provided by the embodiment of the present application;

Figure 2 is a schematic structural diagram of the front end of the suturing device provided by the embodiment of the present application;

Figure 3 is a schematic three-dimensional structural diagram of the fixed sleeve provided by the embodiment of the present application;

Figure 4 is a schematic cross-sectional structural diagram of a deep fixation sleeve between punctures provided by an embodiment of the present application;

Figure 5 is a schematic diagram of the third pipe and the cross-sectional structure of the third pipe provided by the embodiment of the present application;

Figure 6 is a schematic diagram of the usage principle of the suturing device provided by the embodiment of the present application;

Figures 7 to 12 are state diagrams showing changes in the use process of the suturing device provided by the embodiment of the present application;

Figure 13 is a schematic diagram of the sutures on the room partition provided by the embodiment of the present application.

Detailed ways

Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field of this application; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only. , are not intended to limit the application; the terms "including" and "having" and any variations thereof in the description and claims of the application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific sequence.

In order to enable those in the technical field to better understand the solution of the present application, the technical solution in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings in the embodiment of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of this application.

In the embodiment of the present application, the parts to be sutured may be the cardiac foramen ovale, atrial septal defect, structural channels caused by surgery, etc.

As shown in Figures 1, 2 and 5, the suturing device provided by the embodiment of the present application includes: a puncture part 103, a first fixing part 102, a second fixing part 104, a gathering part, a suturing part 101 and a driving mechanism;

In this embodiment of the present application, the suture part 101 includes a plurality of suture lines, and the suture lines are made of degradable materials or metal. All suture parts 101 are movably arranged in the first tube 113. The first tube 113 is sleeved around the periphery of the suture part 101. The first fixed part 102 is rotatably connected to the first end of the first tube 113. The second end of a tube 113 is connected to the driving mechanism, the first end of the suture part 101 passes through the first fixing part 102 and is connected to the puncture part 103, and the second end of the suture part 101 penetrates the entire first The tube 113 is connected to the third fixing part 110, which is used to fix the second end of the suture part 101, and the puncture part 103 is provided on the first fixing part 102. The first fixing part 102 is rotatably arranged on the first tube 113. By rotating the first fixing part 102 around the first tube 113, the puncture part 103 set on the first fixing part 102 can rotate with the first fixing part 102 and can be pulled by the operator. The suturing part 101 causes the first fixing part 102 connected with the suturing part 101 to rotate around the first tube 113, so that the first fixing part 102 and the puncture part 103 change from the folded state to the unfolded state. The expansion of the first fixing part 102 will drive The puncture part 103 is subsequently deployed.

The gathering part includes a first gathering part 225 and a second gathering part 115. The first end of the first gathering part 225 is connected to the first fixing part 102, and the second end of the first gathering part 225 is connected to the driving mechanism. connection, the first gathering part 225 is controlled by the driving mechanism to gather the unfolded first fixing part 102; the second gathering part 115 is provided on the second fixing part 104 for fixing the unfolded second fixing part 102. The second fixing part 104 is used to fix the puncture part 103 that penetrates the tissue near the site to be sutured.

The second fixed part 104 is rotatably arranged on the first tube 113. The second fixed part 104 is provided with a push-pull part 112 connected to the driving mechanism. The push-pull part 112 is controlled by the driving mechanism to drive the second fixed part 104. Expand to fix the puncture part 103 after penetrating the tissue of the site to be sutured. The second fixing part 104 and the first fixing part 102 are arranged oppositely. The push-pull part 112 includes a plurality of push-pull members, and the push-pull members are a plurality of elastic members. The push-pull part is pulled by the driving mechanism to unfold the second fixing part 104 so as to fix the puncture part 103 behind the tissue near the site to be sutured. The end of the push-pull part 112 away from the driving mechanism passes through the second tube 105 and the second The fixing part 104 is connected.

As another embodiment of the present application, the driving mechanism can be controlled separately to achieve control accuracy. The driving mechanism includes a first driving mechanism 107, a second driving mechanism 106 and a third driving mechanism 108. The first driving mechanism 107 is connected to the first tube 113 and is used to drive the first tube 113 to drive the puncture part 103 to move toward or away from the second fixing part 104. The second driving mechanism 106 is connected to the first gathering part 225 for The first gathering part 225 is driven to gather the first fixing part 102. After the first fixing part 102 is driven and unfolded by the suturing part 101, and after the puncture part 103 completes the puncture, the first fixing part 102 needs to be folded to facilitate the first The fixing part 102 passes through the channel of the site to be sutured, and the first fixing part 102 can be gathered through the first gathering part 225. The third driving mechanism 108 is connected to the push-pull part 112 for driving the push-pull part 112 The second fixing part 104 is deployed to fix the puncture part 103 after penetrating the tissue near the site to be sutured.

Wherein, the first driving mechanism 107 includes a screw rod 109 and a nut 107. The screw rod 109 and the nut 107 are threadedly connected. The screw rod 109 is connected to the first tube 113. The third fixing part 110 is provided on the The end of the screw 109 is away from the first tube 113. The second driving mechanism 106 and the third driving mechanism 108 are buttons. If the first tube 113 needs to be driven to move, the control nut 107 drives the screw 109 to move. If it is necessary to close the first fixed part 102, it is controlled by the second driving mechanism 106, and if the second fixing part 104 needs to be deployed, it is controlled by the third driving mechanism 108.

The second tube 105 is sleeved around the periphery of the first tube 113, the push-pull part 112 is provided between the first tube 113 and the second tube 105, the first driving mechanism 107, the second driving mechanism 106 and the third The driving mechanisms 108 are all arranged on the holding part 111, which is connected to the second tube 105. The holding part 111 facilitates the operator to operate the suturing device.

A fourth fixing part 117 and a fifth fixing part 224 are provided on the periphery of the first tube 113. The fifth fixing part 224 is disposed between the fourth fixing part 117 and the third fixing part 110. The fifth fixing part 117 224 is connected to an end of the second tube 105 away from the holding member 111, the fourth fixing part 117 is connected to an end of the first tube 113 away from the holding part 111, and the first fixing part 102 is connected to the fourth fixing part 117. The fixing part 117 is rotationally connected, and the second fixing part 104 and the fifth fixing part 224 are rotationally connected. In order to allow the suturing part 101 to pass through the fourth fixing part 117, a first through hole is provided on the fourth fixing part 117. The suturing part 101 passes through the first through hole and is connected to the puncture part 103. Through the operator The suturing part 101 is driven to rotate and expand the first fixing part 102 around the first tube 113, which makes it easier for the puncture part 103 to puncture the tissue near the site to be sutured.

The first tube 11 , the puncture part 103 and the fifth fixing part 224 are distributed on the same side of the first fixing part 102 .

In order to realize the rotation of the first fixed part 102 around the first tube 113, a first rotating part is provided on the first tube 113 or the fourth fixed part 117, and the first fixed part 102 is rotationally connected with the first rotating part. , the first rotating member has a columnar structure, the first fixed part 102 is provided with a mounting hole that passes through the first rotating member, and the first fixed part 102 rotates around the first rotating member.

The first fixing part 102 includes a plurality of first fixing parts distributed at intervals. In the embodiment of the present application, there are four first fixing parts, and the four first fixing parts are spaced 90 degrees apart from each other. Each of the first fixing parts is The first fixing member is provided with a second through hole and a third through hole, the tail of the puncture part 103 is provided in the second through hole, and the first end of the first gathering part 225 is fixed in the third through hole, so The first fixing piece is a long plate-shaped structure.

The puncture part 103 includes a plurality of puncture parts. The puncture part includes an integrally formed puncture part body 103-1 and a tip part 103-2. The puncture part body 103-1 is a hollow columnar structure, and the suturing part 101 The piercing piece body 103-1 is connected to the tip portion 103-2, and each piercing piece is arranged in one-to-one correspondence with the first fixing piece. The tail of the piercing piece is arranged in the second through hole and is connected with the suture. The operator pulls the suturing part 101 to expand the first fixing part and then drives the puncture part 103 to expand.

As shown in Figure 3, the second fixing part 104 includes a plurality of second fixing parts 104-3 and fixing sleeves 104-2 arranged in one-to-one correspondence. The fixing sleeve 104-2 and the second fixing part 104 -3 rotational connection, the second fixing part 104-3 is rotationally connected to the fifth fixing part 224. In the embodiment of the present application, there are four second fixing parts 104-3 and four fixing sleeves 104-2. And after the first fixing part and the second fixing part 104-3 are deployed, each puncture part corresponds to the position of the fixing sleeve 104-2 so that the puncture part can be inserted into the fixing sleeve 104-2 for fixation, and each puncture part is connected to the fixing sleeve 104-2. The second fixing member 104-3 and the fixing sleeve 104-2 are arranged in one-to-one correspondence. After the puncture member passes through the tissue near the site to be sutured, the tip portion 103-2 extends into the fixing sleeve 104-2 for fixation. The push-pull The portion 112 passes through the second tube 105 and is connected to the second fixing member 104-3.

When the second fixing part 104 is unfolded, the fixing sleeve 104-2 is arranged vertically with the second fixing member 104-3. The fixing sleeve 104-2 has a hollow columnar structure, and the inner diameter of the fixing sleeve 104-2 is larger than the puncture The inner diameter of the part 103, wherein the fixing sleeve 104-2 is a cylindrical structure, the second fixing part 104-3 is a long plate-shaped structure, and the length of the second fixing part 104-3 is consistent with the first fixing part Similarly, this can facilitate the puncture part 103 to enter the fixed sleeve 104-2 for fixation.

In order to achieve the stability of fixing the puncture part 103 after the puncture part 103 passes through the tissue near the site to be sutured, the plurality of first fixing parts, the second fixing part 104-3 and the fixing sleeve 104-2 are deployed Or in the folded state, they are all distributed around the periphery of the first tube 113 .

As shown in Figure 3, each fixed sleeve 104-2 is provided with a fourth through hole 104-21, and the second gathering portion 115 passes through the fourth through hole 104-21 to connect all the fixed sleeves 104-2. 2 are strung together, and the second gathering part 115 is an elastic member. When the force on the push-pull part 112 is canceled, the second gathering part 115 gathers the fixing sleeve 104-2 and distributes it around the periphery of the first tube 113. The two gathering parts 115 are elongated structures and are arranged around the circumference of the fixed sleeve 104-2.

As shown in Figure 4, in order to fix the puncture part 103 after penetrating the tissue of the site to be sutured, the fixing sleeve 104-2 is also provided with at least one fifth through hole 104-22. The fifth through hole 104-22 is provided with a buckle, which is used to fix the puncture part 103 after penetrating the tissue near the site to be sutured. When the puncture part 103 penetrates into the fixation sleeve 104-2, the puncture part 103 will not Disengage the fixed sleeve 104-2.

The fixing sleeve 104-2 is provided with a guide portion 104-1 at one end away from the second fixing member 104-3. The fixed sleeve 104-2 is rotationally connected to the second fixing member 104-3. Both the fixed sleeve 104-2 and the guide part 104-1 are hollow columnar structures. The outer aperture of the guide part 104-1 is is larger than the aperture of the fixed sleeve 104-2, and the aperture of the guide portion 104-1 gradually decreases from the end far away from the fixed sleeve 104-2 to the end close to the fixed sleeve 104-2 body. The guide portion 104-1 and the fixed sleeve 104-2 The aperture of the connection is consistent with the aperture of the fixed sleeve 104-2. The guide portion 104-1 can facilitate the penetration of the puncture part when extending into the fixed sleeve 104-2. Even if the position of the puncture part is deviated, it will not affect the insertion and fixation of the puncture part 103. Fix it in sleeve 104-2.

In order to realize the rotation of the second fixing part 104-3 around the fifth fixing part 224, the fixing sleeve 104-2 rotates around the second fixing part 104-3. The fifth fixing part 224 is provided with a second rotating part, and the fifth fixing part 224 is provided with a second rotating part. The second fixed part 104-3 is provided with a third rotating part. The second fixed part 104-3 is rotationally connected to the fifth fixing part 224 through the second rotating part. The fixed sleeve 104-2 is rotated through the third rotating part. The second fixed member 104-3 is rotatably connected to the second fixed member 104-3. The second rotating member and the third rotating member are columnar structures. The second fixed member 104-3 is provided with a mounting hole that passes through the second rotating member. The second fixed part 104-3 rotates around the second rotating part. The fixed sleeve 104-2 is provided with a mounting hole 104-23 that passes through the third rotating member, and the fixed sleeve 104-2 rotates around the third rotating member.

The push-pull member and the second fixing member 104-3 are arranged in one-to-one correspondence. The second fixing member 104-3 is provided with a sixth through hole. One end of the push-pull member is fixed in the sixth through hole, and the other end of the push-pull member is fixed in the sixth through hole. One end is connected to a driving mechanism, and the third driving mechanism 108 is connected to the pushing member for driving the pushing member to deploy the second fixing member 104-3 to penetrate the tissue near the site to be sutured through the fixing sleeve 104-2. The rear puncture part 103 is fixed.

As shown in FIG. 5 , a third tube 114 is provided on the periphery of the first tube 113 , the fifth fixing part 224 is limitedly provided on the periphery of the third tube 114 , and the third tube 114 is provided in the center axial direction. There is a seventh through hole 114-2, and a plurality of eighth through holes 114-1 are provided in the axial direction of the side wall of the third tube 114. The outer wall of the third tube 114 is connected to the fifth fixing part. 224 snap connection, the embodiment of the present application can limit the position of the fifth fixing part 224 by setting the third tube 114, so that the second fixing part 104-3 expands according to the preset angle, so that the fixing sleeve 104-2 can be aligned with the position of the puncture part. Correspondingly, it is convenient for the puncture member to extend into the fixed sleeve 104-2 and be fixed. That is to say, the third tube 114 limits the rotation of the fifth fixing part 224 in the circumferential direction.

In the embodiment of the present application, the first gathering part 225 includes a plurality of gathering parts. The gathering parts are a plurality of long strip structures. The gathering parts are arranged in the eighth through hole 114-1 and connected with the eighth through hole 114-1. The eighth through holes 114-1 are arranged in one-to-one correspondence, that is to say, the gathering member is limited in the eighth through hole 114-1 and can move in the eighth through hole 114-1.

The following is a detailed introduction to the suturing device provided by the embodiment of the present application through the process of suturing the cardiac foramen ovale using the cardiac interventional suturing device with a puncture part fixing structure provided by the embodiment of the present application.

As shown in Figures 6 and 7, when performing foramen ovale suturing, the guide wire 119 and the sheath 114 are delivered to the foramen ovale 118, and when the guide wire 119 and the sheath 114 are deployed from the right atrium 221 to the left atrium 220 , remove the guide wire 119, and then transport the suturing device along the sheath 114 to the foramen ovale 118 position and to the left atrium 220, and then withdraw the sheath 114 so that the puncture part 103 and the first fixation part 102 are on the left Atrium 220, the remaining part is located in the right atrium 221, and the puncture part 103 is in a contracted state at this time.

As shown in FIG. 8 , the operator controls the suturing part 101 to drive the first fixing part 102 to unfold the puncturing part 103 so that the puncturing part 103 moves toward the second fixing part 104 to perform the puncturing operation.

As shown in FIG. 9 , the first tube 113 is controlled by the driving mechanism to move in a direction close to the driving mechanism to drive the puncture member to penetrate the secondary septum 222 and the primary septum 223 in the tissue of the site to be sutured, and then the second fixing part is driven by the push-pull part 112 104 unfold the second fixing part 104 to fix the puncture part 103 that passes through the tissue near the site to be sutured.

As shown in FIG. 10 , by controlling the driving mechanism, the first tube 113 is continuously driven to move in a direction away from the driving mechanism so that the puncture part 103 is separated from the first fixing part 102 .

As shown in FIG. 11 , after the force on the push-pull part 112 is subsequently canceled, the fixing sleeve 104 - 2 is gathered through the second gathering part 115 to drive the second fixing part 104 - 3 to rotate and gather around the fifth fixing part 224 .

As shown in FIG. 12 , the first gathering part 223 is then controlled by the driving mechanism to gather the first fixing part 102 so that the first fixing part 102 can pass through the foramen ovale, and then the first tube 116 is driven by the driving mechanism to drive the first fixing part 102 Pass through the foramen ovale, retract the second puncture part 103 of the front head of the suturing device into the sheath 116, and then withdraw the entire suturing device from the body. At this time, as shown in Figure 13, between the secondary septum 222 and the original There will be sutures 226 on the septum 223. The sutures 226 are knotted in twos to complete the process of suturing the foramen ovale.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. scope.

Claims (26)

1. A cardiac interventional suturing device with a puncture part fixation structure, including: a puncture part, a gathering part, a first fixation part, a second fixation part, a suturing part and a driving mechanism; The gathering part includes a first gathering part and a second gathering part. The first end of the first gathering part is connected to the first fixing part. The second end of the first gathering part is connected to the driving mechanism. Through the The driving mechanism controls the first gathering part to gather the unfolded first fixing part; the second gathering part is provided on the second fixing part and is used to gather the unfolded second fixing part. The second fixing part The second fixing part is used to fix the puncture part after penetrating the tissue near the site to be sutured. The second fixing part is rotatably provided on the first tube. The second fixing part is provided with a push-pull part connected to the driving mechanism. , the push-pull part is controlled by the driving mechanism to drive the second fixing part to unfold to fix the puncture part after penetrating the tissue near the site to be sutured; The suture portion is surrounded by a first tube, the first fixing portion is rotatably connected to the first end of the first tube, and the second end of the first tube is connected to the driving mechanism. Driving the first tube to drive the puncture part to move toward or away from the second fixed part; The first end of the suturing part passes through the first fixing part and is connected to the puncture part, the second end of the suturing part is connected to the third fixing part, and the puncture part is arranged on the first fixing part On the suturing part, the first fixing part is controlled to rotate to expand the puncture part. 2. The cardiac interventional suturing device with a puncture part fixing structure according to claim 1, wherein the first fixing part and the second fixing part are arranged oppositely. 3. The suturing device with a puncture part fixing structure according to claim 1, wherein the first tube is surrounded by a second tube, and the push-pull part is provided between the first tube and the second tube. During this time, one end of the push-pull part away from the driving mechanism passes through the second tube and is connected to the second fixed part. 4. The cardiac interventional suturing device with a puncture part fixing structure according to claim 1, wherein a fourth fixing part and a fifth fixing part are provided on the periphery of the first tube, and the fourth fixing part is provided with At the first end of the first tube, the fifth fixing part is provided at the first end of the second tube, the first fixing part is rotationally connected to the first tube or the fourth fixing part, and the second fixing part The second end of the first tube is connected to the driving mechanism, and the second end of the second tube is connected to the holding member. 5. The cardiac interventional suturing device with a puncture part fixing structure according to claim 4, wherein the fourth fixing part is provided with a first through hole, and the suture part passes through the first through hole and the The puncture part is connected. 6. The cardiac interventional suturing device with a puncture part fixation structure according to claim 4, wherein the first tube, the puncture part, the second fixation part and the fifth fixation part are distributed at the same time as the first fixation part. side. 7. The cardiac interventional suturing device with a puncture part fixing structure according to claim 5, wherein a first rotating member is provided on the first tube or the fourth fixing part, and the first fixing part and The first rotating member is rotatably connected. 8. The cardiac interventional suturing device with a puncture part fixation structure according to claim 1, wherein the first fixation part includes a plurality of first fixation parts distributed at intervals, and each first fixation part has A second through hole and a third through hole are provided, the tail of the piercing part is arranged in the second through hole, and the first end of the first gathering part is fixed in the third through hole. 9. The cardiac interventional suturing device with a puncture part fixation structure according to claim 8, wherein the second fixation part includes a plurality of second fixation pieces and fixation sleeves arranged in one-to-one correspondence, and the fixation part The sleeve is rotatably connected to the second fixing part, the second fixing part is rotatably connected to the tube, the first end of the push-pull part is connected to the second fixing part, and the second end of the push-pull part is connected to the second fixing part. The drive mechanism is connected as described above. 10. The cardiac interventional suturing device with a puncture part fixing structure as claimed in claim 4, wherein the fifth fixing part is provided with a second rotating part, and the second fixing part is provided with a third rotating part. , the second fixing part is rotationally connected to the fifth fixing part through a second rotating part, and the fixing sleeve is rotationally connected to the second fixing part through a third rotating part. 11. The cardiac interventional suturing device with a puncture part fixing structure according to claim 9, wherein the length of the second fixing part is the same as that of the first fixing part. 12. The cardiac interventional suturing device with a puncture part fixing structure as claimed in claim 9, wherein a plurality of the first fixing parts, the second fixing parts and the fixing sleeves are evenly distributed in the folded state or the unfolded state. outside the first tube. 13. The cardiac interventional suturing device with a puncture part fixation structure as claimed in claim 9, wherein each fixation sleeve is provided with a fourth through hole, and the second gathering member passes through the third through hole. The four-way holes connect all the fixing sleeves together. 14. The cardiac interventional suturing device with a puncture part fixing structure according to claim 1 or 13, wherein the second gathering part is an elastic member. 15. The cardiac interventional suturing device with a puncture part fixing structure as claimed in claim 9, wherein the fixing sleeve is further provided with at least one fifth through hole, and the fifth through hole is provided with a clip. The buckle is used to fix the puncture part after penetrating the tissue of the site to be sutured. 16. The cardiac interventional suturing device with a puncture part fixation structure according to claim 9, wherein the fixation sleeve is provided with a guide part at one end away from the second fixation component. 17. The cardiac interventional suturing device with a puncture part fixation structure as claimed in claim 16, wherein the outer aperture of the guide part is larger than the aperture of the fixed sleeve body. 18. The cardiac interventional suturing device with a puncture part fixation structure according to claim 9, wherein the puncture part includes a plurality of puncture parts, and the puncture parts are respectively connected with the first fixation part and the second fixation part. The fixings are set in one-to-one correspondence. 19. The cardiac interventional suturing device with a puncture part fixation structure as claimed in claim 18, wherein the puncture part includes a puncture part body and a tip part connected to each other, and the puncture part body is a hollow columnar structure, The suture part passes through the piercing part body and is connected to the tip part. 20. The cardiac interventional suturing device with a puncture part fixation structure according to claim 9, wherein the push-pull part includes a plurality of push-pull parts, and the push-pull parts are arranged in one-to-one correspondence with the second fixation part. , the second fixing member is provided with a sixth through hole, one end of the push-pull member is fixed in the sixth through hole, and the other end is connected to the driving mechanism. 21. The cardiac interventional suturing device with a puncture part fixation structure as claimed in claim 4, wherein a third tube is provided on the periphery of the first tube, and the fifth fixation part limiter is provided on the third tube. Three tube periphery. 22. The cardiac interventional suturing device with a puncture part fixation structure as claimed in claim 21, wherein a seventh through hole is axially disposed in the center of the third tube, and a seventh through hole is axially disposed on the side wall of the third tube. There are a plurality of eighth through holes, and the inner wall of the fifth fixing part is snap-connected with the outer mesh of the eighth through hole. 23. The cardiac interventional suturing device with a puncture part fixation structure according to claim 22, wherein the first gathering part includes a plurality of gathering parts, and the gathering parts are arranged in the eighth through hole. And are arranged in one-to-one correspondence with the eighth through hole. 24. The cardiac interventional suturing device with a puncture part fixation structure according to claim 1, wherein the driving mechanism includes a first driving mechanism, a second driving mechanism and a third driving mechanism, and the first driving mechanism The mechanism is connected to the first tube and is used to drive the first tube to drive the puncture part to move toward or away from the second fixed part. The second driving mechanism is connected to the first gathering part and is used to drive the first gathering part. The third driving mechanism is connected to the push-pull part and used to drive the push-pull part to expand the second fixing part. 25. The cardiac interventional suturing device with a puncture part fixation structure according to claim 24, wherein the first driving mechanism includes a screw rod and a nut, the screw rod and the nut are threadedly connected, and the screw rod is connected to the The first pipe is connected, the end of the screw rod away from the first pipe is connected to the third fixing part, and the second driving mechanism and the third driving mechanism are buttons. 26. The cardiac interventional suturing device with a puncture part fixation structure according to claim 24, wherein the first driving mechanism, the second driving mechanism and the third driving mechanism are all arranged on the holding member.