A cardiac intervention suturing device with a puncture portion retracting structure

Abstract

The embodiment of the present application provides a heart intervention suturing device with a puncture part folding structure, which comprises a puncture part, a suturing part, a folding part and a first fixing part; the puncture part is rotated to unfold the puncture part by operating the suturing member arranged in the first tube, the puncture part is rotatably arranged on the first tube, one end of the folding part is connected with the puncture part, and the other end is connected with the driving mechanism, the unfolded puncture part is folded by the folding member controlled by the driving mechanism; the first tube is peripherally sleeved with a second tube, the first fixing member is arranged on the second tube, the first fixing member is used for fixing the puncture part through the tissue near the to-be-sutured part, and then the suturing member passing through the tissue near the to-be-sutured part is knotted to be sutured. By using the suturing device provided by the embodiment of the present application, the to-be-sutured part is sutured, there is no residual implant in the patient's body, there is no inherent risk of septum occlusion, there is no embolism caused by the implant, and there is no risk of arrhythmia and the like.

Description

Technical Field

[0001] The embodiments of this application belong to the field of clinical surgical instruments, and more specifically, relate to a cardiac interventional suturing device with a puncture section retraction structure. Background Technology

[0002] Congenital heart disease refers to abnormalities in the physical structure or function of the heart or major blood vessels in the chest cavity caused by formation disorders or developmental abnormalities of the heart and major blood vessels during embryonic development, or by the failure of channels that should close automatically after birth to close. These include ventricular septal defects, atrial septal defects, patent foramen ovale, etc.

[0003] With the development of science and technology, these unclosed channels can now be closed through interventional surgical procedures.

[0004] Occluders have been used clinically for over twenty years and are very mature medical devices. However, because occluders are implanted foreign bodies in the human body, there are risks of causing embolism and arrhythmias. Most importantly, patients need to take anticoagulants, and the use of metal occluders can block important surgical pathways.

[0005] Even though biodegradable occluders have emerged to allow unobstructed surgical access, they are still implants that need to be degraded and metabolized within the patient's body, and may still pose a risk of embolism. Moreover, they are more expensive than ordinary metal occluders.

[0006] Therefore, surgical methods that reduce the risk of embolism, reduce the number of implants required by patients, and lower treatment costs are urgently needed in clinical practice. Summary of the Invention

[0007] To address the technical problems existing in the closure of unclosed channels using the aforementioned occluders, this application provides a cardiac interventional suturing device with a puncture section retraction structure, comprising: a puncture section, a suturing section, a retraction section, and a first fixation section;

[0008] The suture part is surrounded by a first tube. The first end of the suture part is connected to the puncture part, and the second end of the suture part is connected to the second fixing part. The puncture part is rotatably mounted on the first tube. The first end of the first tube is connected to the puncture part, and the second end of the first tube is connected to the driving mechanism. The puncture part is rotated by operating the suture part to unfold the puncture part.

[0009] The first end of the retracting part is connected to the puncture part, and the second end of the retracting part is connected to the driving mechanism. The driving mechanism controls the retracting part to retract and unfold the puncture part.

[0010] The first tube is surrounded by a second tube, and the first fixing part is disposed on the second tube. The first fixing part is used to fix the puncture part that penetrates the tissue near the site to be sutured.

[0011] In a preferred embodiment of this application, the first tube includes a first tube body and a third fixing part, the third fixing part is provided with a first through hole, and the first end of the suture part passes through the first through hole and is connected to the puncture part.

[0012] In a preferred embodiment of this application, a rotating member is provided on the first tube body or the third fixing part, and the puncture part is rotatably connected to the rotating member.

[0013] In a preferred embodiment of this application, a groove is provided on the outer side of the third fixing part, and the suture part is connected to the puncture part by being limited by the groove.

[0014] In a preferred embodiment of this application, the puncture portion includes a plurality of puncture elements, each of which includes a puncture element body and a tip. The puncture element body is a hollow columnar structure, and the suture portion passes through the puncture portion body and connects to the tip portion.

[0015] In a preferred embodiment of this application, the puncture body and the tip can be separated.

[0016] In a preferred embodiment of this application, the gathering part includes a plurality of gathering members, and the gathering members are configured in a one-to-one correspondence with the piercing members.

[0017] In a preferred embodiment of this application, a second through hole is provided on the puncture member body, and one end of the gathering member is fixed in the second through hole.

[0018] In a preferred embodiment of this application, a plurality of the gathering members are disposed inside a first tube, and the first tube is provided with a plurality of third through holes, through which the gathering members are connected to the puncture member body.

[0019] In a preferred embodiment of this application, the first fixing part is a hollow columnar structure arranged along the axial direction of the second tube, and the position of the first fixing part corresponds to the position of the puncture member penetrating the tissue near the site to be sutured so that the puncture member can extend into the corresponding first fixing part.

[0020] In a preferred embodiment of this application, the first fixing part is provided with a fixing member, which is used to fix the puncture member.

[0021] In a preferred embodiment of this application, the fastener is a snap-on fastener and / or a magnetic fastener.

[0022] In a preferred embodiment of this application, the end of the second tube away from the puncture part is connected to the third tube, and the end of the third tube away from the second tube is connected to the gripper. The gripper is provided with a first driving mechanism and a second driving mechanism. The first driving mechanism is connected to the first tube and is used to drive the first tube to move the puncture part toward or away from the first fixing part. The second driving mechanism is connected to the closing part and is used to drive the closing part to close the unfolded puncture part.

[0023] Compared with the prior art, this application provides a suturing device with a puncture section retraction structure. The device includes a puncture section, a suture section, a retraction section, and a first fixing section. The puncture section is rotated and unfolded by operating the suture section disposed in a first tube. The first end of the retraction section is connected to the puncture section, and the second end of the retraction section is connected to a driving mechanism. The driving mechanism controls the retraction section to retract the unfolded puncture section. A second tube is sleeved around the first tube, and a first fixing member is disposed on the second tube. The first fixing member is used to fix the puncture section that penetrates the tissue near the site to be sutured. Finally, the first and second ends of the suture section that have penetrated the tissue near the site to be sutured are tied together to suture the site. Using the suturing device provided in this application, there is no residual implant in the patient's body, no inherent risk of diaphragmatic occlusion, no implant-induced embolism, and no risk of arrhythmia, etc. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Some specific embodiments of this application will be described in detail below with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings designate the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of the suturing device provided in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the front end structure of the suture device provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the unfolded structure of the puncture site provided in an embodiment of this application;

[0028] Figure 4 This is a schematic diagram illustrating the working principle of the suturing device provided in the embodiments of this application;

[0029] Figures 5 to 10 A diagram illustrating the changing states of the suture device during use, as provided in the embodiments of this application.

[0030] Figure 11 This is a schematic diagram of the seam on the room partition provided in an embodiment of this application. Detailed Implementation

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0033] In the embodiments of this application, the site to be sutured can be the foramen ovale of the heart, atrial septal defect, structural channels caused by surgery, etc.

[0034] like Figure 1-3 As shown, this application provides a suturing device with a puncture portion gathering structure, including: a puncture portion 102, a suturing portion 101, a gathering portion 117 and a first fixing portion 106;

[0035] The suture part 101 is surrounded by a first tube 109, which is a hollow columnar structure that runs through the entire suture device. The suture part 101 is movably disposed in the first tube 109. The first end of the suture part 101 is connected to the puncture part 102, and the second end of the suture part 101 is connected to the second fixing part (not shown). The puncture part 102 is rotatably disposed on the first tube 109. The first end of the first tube 109 is connected to the puncture part 102, and the second end of the first tube 109 is connected to the driving mechanism. The puncture part 102 is rotated by operating the suture part 101 to unfold the puncture part 102.

[0036] The first end of the retracting part 117 is connected to the puncture part 102, and the second end of the retracting part 117 is connected to the driving mechanism. The driving mechanism controls the retracting part 117 to retract the unfolded puncture part 102.

[0037] The first tube 109 is surrounded by a second tube 108, and the first fixing part 106 is disposed on the second tube 108. The first fixing part 106 is used to fix the puncture part 102 that penetrates the tissue near the site to be sutured.

[0038] The first tube 109 includes a first tube body 109-1 and a third fixing part 109-2. In order to allow the suture part 101 to pass through the third fixing part 109-2, the third fixing part 109-2 is provided with a first through hole. The first end of the suture part 101 passes through the first through hole and connects to the puncture part 102. An installation hole can also be provided on the puncture part 102 to install the suture part 101. Providing the third fixing part 109-2 is more conducive to fixing the position of the puncture part 102 so that the position after passing through the tissue near the site to be sutured corresponds to the position of the first fixing part 106.

[0039] To enable the puncture portion 102 to rotate around the first tube body 109-1 and the third fixing portion 109-2, a rotating member is provided on the first tube body or the third fixing portion 109-2. The puncture portion 102 is rotatably connected to the rotating member. Mounting holes are provided on the first tube body 109-1 and the third fixing portion 109-2 so that the rotating member can be mounted on them. The rotating member has a columnar structure, allowing the puncture portion 102 to rotate around it.

[0040] The third fixing part 109-2 is provided with a groove 109-21 on the outside. The suture part 101 is limited and connected to the puncture part 102 through the groove 109-21. With the setting of the groove 109-21, the suture part 101 can be limited in the groove 109-21, which makes it convenient for the suture part 101 to unfold the puncture part 102.

[0041] The puncture section 102 includes multiple puncture elements, each of which includes a puncture element body 102-1 and a tip 102-2. The puncture element body 102-1 is a hollow columnar structure. The suture section 101 passes through the puncture section body 102-1 and connects to the tip 102-2. The puncture element body 102-2 is mounted on the third fixing member 109-2 or the first tube body 109-1 via a rotating member. In this embodiment, the suture section includes multiple sutures, each of which is connected to one puncture element. That is, the sutures are arranged in a one-to-one correspondence with the puncture elements. The sutures are made of biodegradable materials or metal. In this embodiment, the puncture body 102-1 and the tip 102-2 can be separated. In other embodiments, the puncture body 102-1 and the tip 102-2 can also be integrally formed. The following description takes the separation of the puncture body 102-1 and the tip 102-2 as an example. After the tip 102-2 is inserted into the first fixing part 106 and fixed, the first tube 109 is pushed by the driving mechanism to move away from the driving mechanism so as to separate the puncture body 102-1 from the tip 102-2. After the puncture body 102-2 is gathered by the gathering part 117, the first tube body 109-1 is driven by the driving mechanism to pass through the channel of the part to be sutured. The puncture body 102-2 and the third fixing part 109-2 will also pass through the channel of the part to be sutured along with the first tube body 109-1.

[0042] The gathering part 117 includes a plurality of gathering components, each corresponding to one of the puncture components. In this embodiment, there are four gathering components, four puncture components, and four sutures.

[0043] To secure the gathering component and the piercing component, a second through hole is provided on the piercing component. One end of the gathering component is fixed in the second through hole. Multiple gathering components are disposed inside the first tube body 109-1. The first tube body 109-1 has multiple third through holes 109-11, through which the gathering components are connected to the piercing component body 102-1.

[0044] The first fixing part 106 is a hollow columnar structure arranged along the axial direction of the second tube 108. After the puncture member passes through the tissue to be sutured, it is fixed in the hollow columnar structure. The position of the first fixing part 106 corresponds to the position of the puncture member after passing through the tissue to be sutured so that the puncture member can extend into the first fixing part 106.

[0045] The first fixing part 106 is provided with a fixing member 106-1, which is used to fix the puncture member. In this application embodiment, the fixing member 106-1 is a buckle and / or a magnetic member, or it can be other fixing structures. As long as it can fix the puncture member, it is within the scope of protection of this application embodiment.

[0046] The end of the second tube 108 away from the puncture part is connected to the third tube 103. The end of the third tube 103 away from the second tube 108 is connected to the gripping member 105. The gripping member 105 is provided with a first driving mechanism 104 and a second driving mechanism 118. The first driving mechanism 104 is connected to the first tube 09 and is used to drive the first tube 109 to move the puncture part toward or away from the first fixing part 107. The second driving mechanism 118 is connected to the closing part 117 and is used to drive the closing part 117 to close the unfolded puncture part 102.

[0047] In this embodiment, the first drive mechanism 104 and the second drive mechanism 118 are buttons, and the first tube 109 and the retracting part 117 are moved by sliding the button.

[0048] The following describes in detail the suturing process of the foramen ovale of the heart using a cardiac interventional suturing device with a puncture section retraction structure provided in the embodiments of this application.

[0049] like Figure 4 and Figure 5 As shown, during foramen ovale closure, a strong guidewire 113 and a sheath 110 are delivered to the foramen ovale 112. When the guidewire 113 and the sheath 110 are deployed from the right atrium 111 to the left atrium 114, the guidewire 113 is removed. The suturing device is then delivered along the sheath 110 to the position of the foramen ovale 112 and reaches the left atrium 114. The sheath 110 is then withdrawn to the right atrium 111, and the third tube 108 is withdrawn to the right atrium 111 via the gripper 105. At this time, the puncture part 102 and the first fixation part 107 are in the left atrium 114, and the rest are in the right atrium 111. At this time, the puncture part 102 is in a retracted state.

[0050] like Figure 6 As shown, the operator pulls the suture section 101 to unfold the puncture section 102 so that the puncture section 102 moves toward the first fixing section 106 to perform the puncture action.

[0051] like Figure 7 As shown, the first tube 109 is driven to move in the direction of the driving mechanism by the driving mechanism so that the puncture part 102 can penetrate the secondary septum 115 and the primary septum 116 of the tissue to be sutured.

[0052] like Figure 8As shown, the second tube 108 is driven by the driving mechanism to move the first fixing part 106 toward the puncture part, and the first fixing part 106 on the second tube 108 fixes the puncture part 102 that penetrates the secondary septum 115 and primary septum 116 of the tissue to be sutured.

[0053] like Figure 9 As shown, the first tube 109 is driven by the control drive mechanism to move the puncture body 102-1 away from the right atrium 111 so that the puncture body 102-1 is separated from the tip 102-2. The puncture body 102-1 is then gathered by the gathering part 117 so that the puncture body 102-1 and the third fixing part 109-2 can pass through the foramen ovale.

[0054] like Figure 10 As shown, the first tube 109 is driven towards the right atrium 111 by controlling the drive mechanism so that the puncture body 102-1 and the third fixation part 109-2 can pass through the foramen ovale to the right atrium 111. The third tube 103 is driven to move along the axial direction by the gripping member 105 until the second tube 108 covers the puncture part 102 and the third fixation part 109-1. Then, the suturing device is retracted into the sheath 110 and withdrawn from the body. At this time, as Figure 11 As shown, there will be sutures 107 on the secondary septum 115 and the primary septum 116. The sutures 107 are tied in pairs to complete the process of suturing the foramen ovale.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cardiac interventional suturing device with a puncture section retraction structure, characterized in that, include: Puncture section, suture section, gathering section and first fixation section; The suture part is surrounded by a first tube. The first end of the suture part is connected to the puncture part, and the second end of the suture part is connected to the second fixing part. The puncture part is rotatably mounted on the first tube. The first end of the first tube is connected to the puncture part, and the second end of the first tube is connected to the driving mechanism. The puncture part is rotated by operating the suture part to unfold the puncture part. The first end of the retracting part is connected to the puncture part, and the second end of the retracting part is connected to the driving mechanism. The driving mechanism controls the retracting part to retract and unfold the puncture part. The first tube is surrounded by a second tube, and the first fixing part is disposed on the second tube. The first fixing part is used to fix the puncture part that penetrates the tissue near the site to be sutured. The first tube includes a first tube body and a third fixing part. The third fixing part is provided with a first through hole, and the first end of the suture part passes through the first through hole and is connected to the puncture part. The outer side of the third fixing part is provided with a groove, and the suture part is limited and connected to the puncture part through the groove; The puncture section includes multiple puncture components, each of which includes a puncture component body and a tip. The puncture component body is a hollow columnar structure, and the suture section passes through the puncture section body and connects to the tip. The puncture device body and the tip can be separated; The gathering part includes multiple gathering components, and the gathering components are arranged in a one-to-one correspondence with the piercing components; The puncture component body is provided with a second through hole, and one end of the gathering component is fixed in the second through hole; a plurality of gathering components are disposed inside the first tube, and the first tube is provided with a plurality of third through holes, and the gathering components are connected to the puncture component body through the third through holes.

2. The cardiac interventional suturing device with a puncture section retraction structure as described in claim 1, characterized in that, A rotating component is provided on the first tube body or the third fixing part, and the puncture part is rotatably connected to the rotating component.

3. The cardiac interventional suturing device with a puncture section retraction structure as described in claim 1, characterized in that, The first fixing part is a hollow columnar structure arranged along the axial direction of the second tube, and the position of the first fixing part corresponds to the position of the puncture member penetrating the tissue near the site to be sutured, so that the puncture member can extend into the corresponding first fixing part.

4. The cardiac interventional suturing device with a puncture section retraction structure as described in claim 3, characterized in that, The first fixing part is provided with a fixing member, which is used to fix the puncture member.

5. A cardiac interventional suturing device with a puncture section retraction structure as described in claim 4, characterized in that, The fastener is a snap-on fastener and / or a magnetic fastener.

6. A cardiac interventional suturing device with a puncture portion retraction structure as described in any one of claims 1, 4, or 5, characterized in that, The end of the second tube away from the puncture part is connected to the third tube, and the end of the third tube away from the second tube is connected to the gripper. The gripper is provided with a first driving mechanism and a second driving mechanism. The first driving mechanism is connected to the first tube and is used to drive the first tube to move the puncture part toward or away from the first fixing part. The second driving mechanism is connected to the closing part and is used to drive the closing part to close the unfolded puncture part.

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