CN116983026B - Interventional suture device - Google Patents
Interventional suture device Download PDFInfo
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- CN116983026B CN116983026B CN202311253790.XA CN202311253790A CN116983026B CN 116983026 B CN116983026 B CN 116983026B CN 202311253790 A CN202311253790 A CN 202311253790A CN 116983026 B CN116983026 B CN 116983026B
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- puncture
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- 229910052751 metal Inorganic materials 0.000 description 8
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- 208000008883 Patent Foramen Ovale Diseases 0.000 description 7
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 210000005246 left atrium Anatomy 0.000 description 2
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- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical compound [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0491—Sewing machines for surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00632—Occluding a cavity, i.e. closing a blind opening
Abstract
The application provides an interventional suture device, which comprises an extension piece, a first tube body and a second tube body; the extension piece is detachably arranged at the end part of the first pipe body through the first connecting structure, the second pipe body is movably arranged in the first pipe body, the second pipe body is provided with a movable elastic piece, the elastic piece is in a contracted state and an expanded state, the elastic piece extends out of the second pipe body, and the extension piece is positioned between the elastic piece and the first pipe body when the elastic piece is in the expanded state; at least two movable puncture parts are arranged in the first tube body, a suture is arranged in the puncture parts, at least two through holes are formed in the tube wall of the first tube body, the puncture parts face the through holes, and the puncture parts are used for moving and extending out of the through holes and penetrate through the elastic parts in an unfolding state. The application closes the PFO by adopting a suturing mode, and the application can adjust the suturing position and the suturing distance according to different conditions and complexity of patients so as to adapt the interventional suturing device to the patients.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to an interventional suture device.
Background
Patent Foramen Ovale (PFO), which has been considered to be benign and harmless in many cases, has been a common cause for experts in recent clinical studies, and is one of causes of cerebral apoplexy, migraine, contradictory embolism, etc. which are unknown causes. Thus, PFO occlusion or closure is required.
At present, the plugging and closing treatment is carried out by adopting a plugging device in clinical intervention plugging operation, the plugging device comprises a metal plugging device and a degradable plugging device, and the metal plugging device and the degradable plugging device belong to implantable foreign matters relative to a human body, have risks of embolism, arrhythmia and the like, and enable patients to take anticoagulant drugs. And the use of metal occluders also results in significant surgical access being blocked, while the use of degradable occluders does not block surgical access, but is far more expensive than metal occluders.
Disclosure of Invention
In order to overcome the above-described drawbacks of the prior art, the present application provides an interventional suturing device.
The specific technical scheme is as follows:
an interventional suturing device comprising an extension, a first tube and a second tube;
the extension piece is detachably arranged at the end part of the first pipe body through a first connecting structure, the second pipe body is movably arranged in the first pipe body, a movable elastic piece is arranged on the second pipe body, the elastic piece is in a contracted state and an expanded state, the elastic piece extends out of the second pipe body, and the extension piece is positioned between the elastic piece and the first pipe body when the elastic piece is in the expanded state;
the novel disposable medical tube is characterized in that at least two movable puncture parts are arranged in the first tube body, suture lines are arranged in the puncture parts, at least two through holes are formed in the tube wall of the first tube body, the puncture parts face the through holes, and the puncture parts are used for moving and extending out of the through holes and penetrate through the elastic parts in an unfolding state.
In one embodiment, the extension piece comprises a main body part and at least one bending part arranged on the main body part, wherein the main body part is detachably arranged at the end part of the first pipe body through the first connecting structure, the bending part has a bending state and a straightening state, and the bending part is used for being switched from the bending state to the straightening state under the action of external force.
In one embodiment, the interventional suturing device further comprises a first adjustment device comprising a housing and a pusher movably disposed within the housing, and at least a portion of the pusher extending out of the housing;
one end of the first pipe body, which is far away from the extension piece, penetrates through the shell and the pushing piece, the pushing piece is connected with the puncture piece, and the pushing piece is used for moving in the shell under the action of external force and driving the puncture piece to move.
In one embodiment, the first adjusting device further comprises a stop block detachably provided at a portion of the pushing member extending out of the housing through a second connecting structure;
the number of the stop blocks is multiple, the stop blocks are sequentially arranged along the moving direction of the pushing piece, and the stop blocks cover the part of the pushing piece extending out of the shell.
In one embodiment, one of the shell and the pushing member is provided with a limiting groove, the other is provided with a limiting member, the limiting member is located in the limiting groove, and the limiting member and the limiting groove are arranged along the transferring direction of the pushing member.
In one embodiment, the interventional suture device further comprises a second adjusting device, the first tube body passes through the second adjusting device, the suture is connected with the second adjusting device, and the second adjusting device is used for driving the suture to move.
In one embodiment, one end of the pushing member away from the housing is connected to the second adjusting device, and the tail end of the piercing member is fixed on the second adjusting device, so as to realize connection of the pushing member and the piercing member.
In one embodiment, the interventional suturing device further comprises a fourth tube disposed over the second tube;
the fourth tube body comprises a tip portion and a main body portion, wherein the main body portion is located in the second tube body, and the tip portion is located outside the second tube body.
In one embodiment, the tip portion has a trapezoidal cross section.
In one embodiment, the first connection structure comprises an internal thread and an external thread, the extension is provided with an internal thread, the first tubular body is provided with an external thread, and the internal thread and the external thread are in threaded connection.
In one embodiment, the second connection structure includes a clamping block and a clamping groove, one of the stopping block and the pushing piece is provided with the clamping block, and the other is provided with the clamping groove, and the clamping block is in snap connection with the clamping groove.
The application has at least the following beneficial effects:
the application provides an interventional suture device, which comprises an extension piece, a first tube body and a second tube body; the extension piece is detachably arranged at the end part of the first pipe body through the first connecting structure, the second pipe body is movably arranged in the first pipe body, the second pipe body is provided with a movable elastic piece, the elastic piece is in a contracted state and an expanded state, the elastic piece extends out of the second pipe body, and the extension piece is positioned between the elastic piece and the first pipe body when the elastic piece is in the expanded state; at least two movable puncture parts are arranged in the first tube body, a suture is arranged in the puncture parts, at least two through holes are formed in the tube wall of the first tube body, the puncture parts face the through holes, and the puncture parts are used for moving and extending out of the through holes and penetrate through the elastic parts in an unfolding state.
According to the application, the extending piece is arranged, so that the distance between the elastic piece and the first pipe body when the elastic piece is in the unfolded state is increased, the length of the penetrating piece extending out of the through hole is increased, and the distance between the tips of the two opposite penetrating pieces is further increased. The application adopts a suturing mode to close the PFO, and can select extension pieces with different lengths according to different conditions and complicated degrees of clinical patients so as to adjust the suturing position and the suturing distance of the interventional suturing device, thereby leading the interventional suturing device to be matched with the clinical patients and having wide application range.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first schematic structural view of an interventional suture device according to embodiment 1;
FIG. 2 is a second schematic structural view of the interventional suture device according to embodiment 1;
FIG. 3 is a schematic view showing a third structure of the interventional suture device according to embodiment 1;
FIG. 4 is a fourth schematic structural view of the interventional suture device according to embodiment 1;
FIG. 5 is a fifth schematic structural view of the interventional suture device according to embodiment 1;
FIG. 6 is an enlarged view of a portion of area A of FIG. 5;
FIG. 7 is a schematic view showing a sixth structure of the interventional suture device according to embodiment 1;
fig. 8 is a schematic structural view of an interventional suture device according to embodiment 2.
Reference numerals:
1-an extension; 2-a first tube; 3-a second tube; 4-fourth tube body; 5-an elastic member; 6-piercing member; 7-a first connection structure; 8-a first adjusting device; 10-a second adjusting device; 11-bending parts; 12-a main body; 21-a through hole; 41-tip part; 42-a body portion; 61-suture; 71-internal threads; 72-external threads; 81-a housing; 82-pushing member; 83-stop block; 91-clamping blocks; 92-clamping grooves; 811-a limit groove; 821-limit members; 831-stop; 832-an operation portion.
Detailed Description
Hereinafter, various embodiments of the present application will be described more fully. The application is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit the various embodiments of the application to the specific embodiments disclosed herein, but rather the application is to be understood to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the application.
Hereinafter, the terms "comprises" or "comprising" as may be used in various embodiments of the present application indicate the presence of the disclosed functions, operations or elements, and are not limiting of the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the application, the terms "comprises," "comprising," and their cognate terms are intended to refer to a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be interpreted as first excluding the existence of or increasing likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the application, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B or may include both a and B.
Expressions (such as "first", "second", etc.) used in the various embodiments of the application may modify various constituent elements in the various embodiments, but the respective constituent elements may not be limited. For example, the above description does not limit the order and/or importance of the elements. The above description is only intended to distinguish one element from another element. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present application.
It should be noted that: in the present application, unless explicitly specified and defined otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between the interiors of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, it should be understood by those of ordinary skill in the art that the terms indicating an orientation or a positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of description, not to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application.
The terminology used in the various embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the application. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the application belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the application.
The current clinically adopted occluder comprises a metal occluder and a degradable occluder, which both belong to implantable foreign matters relative to a human body, and risk of embolism, arrhythmia and the like exists, so that a patient needs to take anticoagulant drugs. And the use of metal occluders also results in significant surgical access being blocked, while the use of degradable occluders does not block surgical access, but is far more expensive than metal occluders.
Based on the above, the application provides an interventional suture device which adopts a suture mode to close the PFO, avoids implanting a plugging device, reduces the risks of embolism, arrhythmia and the like, and has high safety.
As shown in fig. 1 to 8, the present embodiment provides an interventional suture device including an extension member 1, a first tube body 2, and a second tube body 3;
the extension piece 1 is detachably arranged at the end part of the first pipe body 2 through a first connecting structure 7, the second pipe body 3 is movably arranged in the first pipe body 2, the second pipe body 3 is provided with a movable elastic piece 5, the elastic piece 5 is in a contracted state positioned in the second pipe body 3 and in an expanded state extending out of the second pipe body 3, and the extension piece 1 is positioned between the elastic piece 5 and the first pipe body 2 when the elastic piece 5 is in the expanded state;
at least two movable puncture members 6 are arranged in the first pipe body 2, a suture 61 is arranged in the puncture members 6, at least two through holes 21 are arranged on the pipe wall of the first pipe body 2, the puncture members 6 face the through holes 21, and the puncture members 6 are used for moving and extending out of the through holes and penetrating through the elastic members 5 in an unfolding state.
The PFO is closed by adopting a suturing mode, implantation of the plugging device is avoided, the risks of embolism, arrhythmia and the like are reduced, and the safety is high.
In this embodiment, the extension member 1 is detachably disposed on the first tube body 2 through the first connection structure 7, so that the distance between the elastic member 5 and the first tube body 2 when the elastic member 5 is in the unfolded state is increased, the length of the penetrating member 6 extending out of the through hole is increased, and then the distance between the tips of the two opposite penetrating members 6 is increased.
According to the embodiment, the extension pieces with different lengths can be selected according to different conditions and complicated degrees of clinical patients so as to adjust the suture position and suture distance of the interventional suture device, so that the interventional suture device is matched with the clinical patients, and the application range is wide.
Example 1
In one embodiment, the elastic member 5 is an elastic net body.
In one embodiment, the through-hole 21 is a beveled hole such that the piercing member 6 is beveled when protruding from the through-hole 21.
In one embodiment, the hardness of the extension 1 is between 20-95A.
As shown in fig. 1 to 7, in one embodiment, the extension member 1 has a hollow structure, and the second tube body 3 moves under the force of external force and protrudes out of the extension member 1 through the hollow structure of the extension member.
As shown in fig. 1 to 7, in one embodiment, the first connection structure 7 includes an internal thread 71 and an external thread 72, the extension member 1 is provided with the internal thread 71, and the first pipe body 2 is provided with the external thread 72, and the internal thread 71 and the external thread 72 are screwed. The detachable connection of the extension piece 1 and the first pipe body 2 is realized through the matching of the internal thread 71 and the external thread 72, the structure is simple, the production cost is low, the assembly is convenient, and the time consumed by the installation and the disassembly is reduced.
In other embodiments, the first connection structure 7 may be a clip connection structure or a plug connection structure, but is not limited thereto.
As shown in fig. 1 to 7, in one embodiment, the second tube body 3 is provided with a developing material, and the position of the intervention suture device is accurately identified by the developing material, so that the suture operation is facilitated. Specifically, the developing material may be barium sulfate, platinum iridium, or a metal braid. Preferably, the second tube 3 is a composite tube with a braid.
As shown in fig. 1 to 7, in one embodiment, the interventional suture device further includes a fourth tube 4, the fourth tube 4 being disposed on the second tube 3; the fourth tube 4 includes a tip portion 41 and a main body portion 42, the main body portion 42 being located inside the second tube 3, the tip portion 41 being located outside the second tube 3. Specifically, the outer diameter of the tip portion 41 is smaller than the outer diameter of the body portion 42.
In this embodiment, the fourth tube 4 is provided, so that the cross-sectional area of the interventional suture device at the end of the human body is reduced, and the interventional suture device can conveniently pass through blood vessels and other tissues.
As shown in fig. 1-7, in one embodiment, the tip portion 41 is trapezoidal in cross-section. In this embodiment, the outer diameter of the tip 41 on the side close to the main body 42 is gradually reduced to the outer diameter of the tip on the side far from the main body 42, so that the outer diameter of the tip 41 is uniformly transited, and the interventional suture device is convenient to pass through blood vessels and other tissues.
As shown in fig. 1 to 7, in one embodiment, the interventional suture device further comprises a first adjusting device 8, the first adjusting device 8 comprising a housing 81 and a pushing member 82, the pushing member 82 being movably arranged within the housing 81, and at least a portion of the pushing member 82 protruding out of the housing 81. The end of the first tube body 2 far away from the extension piece 1 passes through the shell 81 and the pushing piece 82, the pushing piece 82 is connected with the puncture piece 6, and the pushing piece 82 is used for moving in the shell 81 under the action of external force and driving the puncture piece 6 to move.
Specifically, scale marks are arranged on the outer wall of the pushing piece 82, an operator applies force to the pushing piece 82, the pushing piece 82 drives the puncturing piece 6 to move, and the operator can judge the moving stroke of the puncturing piece 6 according to the scale marks.
In the prior art, the movement of the puncture member is generally realized by adopting a lead screw transmission mode, and the puncture member is realized by matching the shell 81 and the pushing member 82 in the embodiment; compared with the prior art, the mechanical propulsion mode of the embodiment can puncture tissues rapidly, and the puncture time is saved.
As shown in fig. 1 to 7, in one embodiment, the interventional suture device further comprises a second adjusting device 10, the first tube body 2 passes through the second adjusting device 10, the suture 61 is connected to the second adjusting device 10, and the second adjusting device 10 is used for moving the suture 61 such that the suture 61 protrudes out of the puncture element 6.
As shown in fig. 1 to 7, in one embodiment, an end of the pushing member 82 remote from the housing 81 is connected to the second adjusting device 10, and a tail end of the penetrating member 6 is fixed to the second adjusting device 10 to achieve connection of the pushing member 82 to the penetrating member 6. So that the connection structure of the pushing member 82 and the puncturing member 6 is simple and the production cost is low.
As shown in fig. 1 to 7, in one embodiment, the first adjusting device 8 further includes a stopper 83, and the stopper 83 is detachably provided at a portion of the pushing member 82 protruding from the housing 81 by the second coupling structure. The stopper 83 pushes the member 82 to be combined to form an outer diameter larger than an inner diameter of the housing 81.
The stop 83 is used to limit the relative position between the pusher 82 and the housing 81 to avoid excessive movement of the pusher 82, resulting in excessive penetration of the penetrating member 6. By arranging the stop block 83, the risk of excessive puncture of the interventional suture device is reduced, the safety of the interventional suture device is increased, and the interventional suture device is reliable and reliable.
The number of the stopper pieces 83 is plural, the plural stopper pieces 83 are disposed in order along the moving direction of the pushing piece 82, and the plural stopper pieces 83 cover the portion of the pushing piece 82 protruding from the housing 81. The stop blocks 83 have preset thickness, so that a user can detach the corresponding number of stop blocks 83 according to the travel of the puncture member 6, and push the pushing member 82 to drive the puncture member 6 to puncture, thereby simplifying the puncture step and the caution matters in the puncture process, and enabling the puncture process to be simple and convenient.
Specifically, the portion of the pushing member 82 protruding from the housing 81 is between 5mm and 100mm, and the thickness of the stopper 83 is between 0.5 and 10 mm.
As shown in fig. 1 to 7, in one embodiment, the second connection structure includes a latch 91 and a latch groove 92, one of the stopper 83 and the pusher 82 is provided with the latch 91, and the other is provided with the latch groove 92, and the latch 91 is snap-coupled with the latch groove 92. In this embodiment, through the cooperation of the clamping block 91 and the clamping groove 92, the detachable connection between the stop block 83 and the pushing member 82 is realized, and the structure is simple and the assembly is convenient.
As shown in fig. 1 to 7, in one embodiment, the stopper 83 has a stopper portion 831 and an operation portion 832.
The stop portion 831 is C-shaped and winds the periphery of the pushing member 82, and both ends of the stop portion 831 are provided with clamping grooves 92, clamping blocks 91 are correspondingly arranged on the pushing member 82, and the clamping blocks 91 are in buckling connection with the clamping grooves 92 so as to fix the stop portion 831 on the pushing member 82. The stopper 83 of the present embodiment is firmly connected to the pushing member 82; even if the housing 81 is impacted, the stopper 83 and the pushing member 82 cannot be separated, further increasing the safety of the interventional suture device.
The operation portion 832 is connected with the stop portion 831, and is configured to drive the stop portion 831 to move under the action of an external force, so that the clamping groove 92 is separated from the clamping block 91, and the stop block 83 is detached from the pushing member 82, so that the detachment process of the stop block 83 is easy.
As shown in fig. 1 to 7, in one embodiment, one of the housing 81 and the pushing member 82 is provided with a stopper 811, the other is provided with a stopper 821, the stopper 821 is located in the stopper 811, and the stopper 821 and the stopper 811 are provided along the transfer direction of the pushing member 82. Through the cooperation of the limit groove 811 and the limit piece 821, the moving path of the pushing piece 82 is limited, so that the pushing piece 82 moves along a preset path, and the safety of the interventional suture device is improved.
As shown in fig. 1-7, in one embodiment, the pusher 82 is a pusher bar, so that friction is low, facilitating pushing. Meanwhile, the pushing piece 82 can only move and cannot rotate under the action of external force through the cooperation of the limit groove 811 and the limit piece 821.
Example 2
As shown in fig. 8, in the present embodiment, the extension member 1 includes a main body portion 12 and at least one bending portion 11 provided on the main body portion 12, the main body portion 12 is detachably provided at an end portion of the first pipe body 2 by a first connection structure, the bending portion 11 has a bent state and a straightened state, and the bending portion 11 is configured to be switched from the bent state to the straightened state by an external force.
Specifically, the bent portion 11 is made of a polymer material having an elastic function, such as plastic, synthetic rubber, and synthetic fiber, but is not limited thereto. Alternatively, the bent portion 11 may be formed of a flexible metal material by braiding or welding, but is not limited thereto.
Specifically, the angle between the bent portion 11 and the main body portion 12 is between 75 ° and 120 °.
In the embodiment, the outer diameter of the interventional suture device is increased through the bending part 11 so as to support heart tissue from the right atrium surface and prevent the subsequent part of the instrument from entering the left atrium; and simultaneously, the bending part 11 is matched with the elastic piece 5 to clamp heart tissue, so that the puncture piece 6 can puncture conveniently.
Meanwhile, in the present embodiment, when the interventional suture device is delivered, the bending portion 11 can be switched from the bending state to the straightening state (for example, by pushing the sheath tube sleeved on the outer side of the first tube body 2, the sheath tube is made to squeeze the bending portion 11, and the bending portion 11 is switched from the bending state to the straightening state), so as to reduce the outer diameter of the interventional suture device, and facilitate delivery.
As shown in fig. 8, in one embodiment, the main body 12 is provided with a plurality of bending portions 11, and the plurality of bending portions 11 are sequentially disposed along the circumferential direction of the first tube body 2, and the plurality of bending portions 11 are diverged when in a bent state, so that the outer diameter of the interventional suture device is increased.
Specifically, the bent portion 11 has an L-shape or a petal shape.
Other contents of this embodiment are the same as those of embodiment 1, and will not be described here again.
In summary, the interventional suture device provided by the application has at least the following beneficial effects:
1. the PFO is closed by adopting a suturing mode, so that the situation that the plugging device is implanted and risks such as embolism and arrhythmia are reduced is avoided, and the safety is high.
2. The distance between the elastic piece 5 and the first tube body 2 when the elastic piece 5 is in the unfolded state is increased, so that the distance between the tips of the two opposite puncture pieces 6 is increased, and the extension pieces with different lengths can be selected according to different conditions and complicated degrees of clinical patients, so that the suture position and the suture distance of the interventional suture device can be adjusted.
3. A bending part 11 is arranged on the extension piece 1, so that the outer diameter of the interventional suture device is increased to support heart tissue from the right atrium surface, and the subsequent part of the instrument is prevented from entering the left atrium; and meanwhile, the bending part of the extension piece 1 is matched with the elastic piece 5 to clamp heart tissue, so that the puncture piece 6 can puncture conveniently. And the bending part 11 can be switched from a bending state to a straightening state, so that the outer diameter of the interventional suture device can be reduced during conveying, and the interventional suture device is convenient to convey.
4. The fourth tube 4 with the tip 41 is provided to reduce the cross-sectional area of the interventional suturing device at the end of the human body, facilitating the passage of the interventional suturing device through blood vessels and other tissues.
5. The movement of the puncturing piece is realized in a mechanical pushing mode, so that compared with the prior art, the puncturing piece can puncture tissues rapidly, and the puncturing time is saved.
6. The stopper 83 is arranged to prevent the pushing member 82 from moving excessively, so that the puncture member 6 punctures excessively, the safety of the interventional suture device is improved, and the interventional suture device is reliable and reliable. And the corresponding number of stop blocks can be taken down according to the travel of the puncture piece 6 to puncture, so that the puncture steps and the notice in the puncture process are simplified, and the puncture process is simple and convenient.
Note that the above is only a preferred embodiment of the present application and the technical principle applied. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, while the application has been described in connection with the above embodiments, the application is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the application, which is set forth in the following claims.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the application are intended to be included within the scope of the application.
Claims (8)
1. An interventional suture device, comprising an extension piece, a first tube body and a second tube body;
the extension piece is detachably arranged at the end part of the first pipe body through a first connecting structure, the second pipe body is movably arranged in the first pipe body, a movable elastic piece is arranged on the second pipe body, the elastic piece is in a contracted state and an expanded state, the elastic piece extends out of the second pipe body, and the extension piece is positioned between the elastic piece and the first pipe body when the elastic piece is in the expanded state;
at least two movable puncture parts are arranged in the first pipe body, suture lines are arranged in the puncture parts, at least two through holes are formed in the pipe wall of the first pipe body, the puncture parts face the through holes, and the puncture parts are used for moving and extending out of the through holes and penetrate through the elastic parts in an unfolding state;
the extension piece comprises a main body part and at least one bending part arranged on the main body part, the main body part is detachably arranged at the end part of the first pipe body through the first connecting structure, the bending part is provided with a bending state and a straightening state, and the bending part is used for being switched from the bending state to the straightening state under the action of external force;
the interventional suture device further comprises a first adjusting device, wherein the first adjusting device comprises a shell and a pushing piece, the pushing piece is movably arranged in the shell, and at least a part of the pushing piece extends out of the shell; one end of the first pipe body, which is far away from the extension piece, penetrates through the shell and the pushing piece, the pushing piece is connected with the puncture piece, and the pushing piece is used for moving in the shell under the action of external force and driving the puncture piece to move.
2. The interventional suturing device of claim 1, wherein the first adjustment device further comprises a stop block detachably disposed to a portion of the pusher extending out of the housing by a second connection structure;
the number of the stop blocks is multiple, the stop blocks are sequentially arranged along the moving direction of the pushing piece, and the stop blocks cover the part of the pushing piece extending out of the shell.
3. The interventional suture device according to claim 1, wherein one of the housing and the pusher is provided with a stopper, the other is provided with a stopper, the stopper is located in the stopper, and the stopper are provided along a transfer direction of the pusher.
4. The interventional suturing device of claim 1, further comprising a second adjustment device through which the first tube passes, the suture being connected to the second adjustment device, the second adjustment device being configured to move the suture.
5. The interventional suturing device of claim 4, wherein an end of the pusher remote from the housing is coupled to the second adjustment device, and wherein a trailing end of the penetrating member is secured to the second adjustment device to effect coupling of the pusher to the penetrating member.
6. The interventional suturing device of claim 1, further comprising a fourth tube disposed on the second tube;
the fourth pipe body comprises a tip portion and a main body portion, the main body portion of the fourth pipe body is located in the second pipe body, and the tip portion is located outside the second pipe body.
7. The interventional suturing device of claim 6, wherein the tip portion has a trapezoidal cross section.
8. The interventional suture device of claim 1, wherein the first connection structure comprises internal threads and external threads, the extension is provided with internal threads, the first tube body is provided with external threads, and the internal threads and the external threads are threadably coupled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311253790.XA CN116983026B (en) | 2023-09-27 | 2023-09-27 | Interventional suture device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311253790.XA CN116983026B (en) | 2023-09-27 | 2023-09-27 | Interventional suture device |
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| CN116983026A CN116983026A (en) | 2023-11-03 |
| CN116983026B true CN116983026B (en) | 2023-12-01 |
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| WO2006037039A2 (en) * | 2004-09-27 | 2006-04-06 | Sutura, Inc. | Handle for suturing apparatus |
| US9597063B2 (en) * | 2006-06-28 | 2017-03-21 | Abbott Laboratories | Expandable introducer sheath to preserve guidewire access |
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| WO2005039419A1 (en) * | 2003-10-24 | 2005-05-06 | Ev3, Inc. | Patent foramen ovale closure system |
| CN112998772A (en) * | 2019-12-20 | 2021-06-22 | 杭州唯强医疗科技有限公司 | Interventional defect stitching instrument |
| CN111920468A (en) * | 2020-08-12 | 2020-11-13 | 复旦大学附属中山医院 | Trans-apical mitral valve stitching instrument |
| CN114469212A (en) * | 2020-11-12 | 2022-05-13 | 先健科技(深圳)有限公司 | Limiting device and suturing device |
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| CN116983026A (en) | 2023-11-03 |
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