CN116531148B - A lockwire system for valve repair operation - Google Patents
A lockwire system for valve repair operation Download PDFInfo
- Publication number
- CN116531148B CN116531148B CN202310814394.3A CN202310814394A CN116531148B CN 116531148 B CN116531148 B CN 116531148B CN 202310814394 A CN202310814394 A CN 202310814394A CN 116531148 B CN116531148 B CN 116531148B
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- wire
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- wire clamping
- clamping
- locking
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- 230000008439 repair process Effects 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 128
- 238000001356 surgical procedure Methods 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000009958 sewing Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000003430 Mitral Valve Prolapse Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000007675 cardiac surgery Methods 0.000 description 1
- 210000003698 chordae tendineae Anatomy 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 210000003709 heart valve Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 201000011112 tricuspid valve prolapse Diseases 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00243—Type of minimally invasive operation cardiac
-
- 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
- A61B2017/00592—Elastic or resilient implements
-
- 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
- A61B2017/00646—Type of implements
- A61B2017/00668—Type of implements the implement being a tack or a staple
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Transplantation (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a locking wire system for valve repair operation, and relates to the technical field of medical appliances. The wire locking system comprises a rotary wire collecting mechanism, a wire clamping mechanism, a rotary operating mechanism and a wire clamping operating mechanism. When the wire locking operation is carried out, the rotary wire collecting mechanism is driven to rotate through the rotary operation mechanism, so that the locking wire is wound on the rotary wire collecting mechanism, the distance between two ends of the locking wire is shortened, the locking wire between two anchors is shortened, and the wire collecting operation is completed. And then the wire clamping mechanism is positioned at a second position through the wire clamping operation mechanism, so that wire locking is completed. The whole process is simple to operate, does not need to perform line cutting operation, shortens operation time and reduces damage to patients.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a locking wire system for valve repair operation.
Background
Valve annulus repair surgery is a common cardiac surgery used to treat patients with mitral or tricuspid valve prolapse or dysfunction. Valve annulus repair surgery requires suturing the annulus around the valve to support and strengthen the valve to restore its normal function.
In valve repair procedures, anchors are used to secure the valve annulus to restore normal function of the valve. During surgery, the physician would implant anchors into the valve annulus and connect them together with a locking wire. The locking wires are then tightened by the locking wire structure, so that the valve annulus is contracted and deformed, and the valve can be more tightly closed, thereby restoring the normal function of the valve.
However, the applicant finds in practical application that after the existing locking wire structure finishes the locking wire operation, the extra part of the locking wire after tightening needs to be cut off and removed, so that the medical staff is also required to perform the wire cutting operation, and the cut locking wire is recovered, which clearly increases the workload of the medical staff, prolongs the operation time and causes more damage to the patient.
Disclosure of Invention
Embodiments of the present invention provide a lockwire system for valve repair surgery to address at least some of the above issues.
An embodiment of the present invention provides a sewing thread system for valve repair surgery, the sewing thread system comprising: the rotary wire-collecting mechanism is configured to pass through the locking wire; the wire clamping mechanism is sleeved on the rotary wire collecting mechanism and is configured to move from a first position to a second position on the rotary wire collecting mechanism, and at least one of two sides of the locking wire is clamped by the wire clamping mechanism in the second position; the rotary operation mechanism is connected with the rotary wire collecting mechanism and is used for driving the rotary wire collecting mechanism to rotate; and the wire clamping operation mechanism is connected with the wire clamping mechanism and is used for driving the wire clamping mechanism to move from the first position to the second position.
In some implementations of the embodiments of the invention, the rotary take-up mechanism includes a rotary member; the rotating piece comprises a first connecting part, a second connecting part and a third connecting part which are sequentially connected from the proximal end to the distal end; the first connecting portion is detachably connected with the rotary operation mechanism, the second connecting portion is connected with the wire clamping mechanism, and the third connecting portion is provided with a wire passing hole for the locking wire to pass through.
In some implementations of the embodiments of the invention, the radial dimension of the second connection is greater than the radial dimensions of the first connection and the second connection.
In some implementations of the invention, the first connection portion is threadably coupled to the rotary operating mechanism.
In some implementations of the embodiments of the present invention, the rotary take-up mechanism further includes a limiting tab; the limiting piece is connected to one end, deviating from the second connecting portion, of the third connecting portion, and is used for limiting the locking wire wound on the third connecting portion.
In some implementations of the embodiments of the present invention, the wire clamping mechanism includes a wire clamping cylinder, the wire clamping cylinder is sleeved on the rotary wire receiving mechanism and configured to be movable from a first position to a second position on the rotary wire receiving mechanism; the proximal end of the wire clamping cylinder is detachably connected with the wire clamping operation mechanism, and the distal end of the wire clamping cylinder is provided with a wire clamping part for clamping at least one of two sides of the locking wire.
In some implementations of the embodiments of the present invention, the wire clamping portion is a plurality of wire clamping grooves circumferentially spaced along the distal end of the wire clamping barrel.
In some implementations of the embodiments of the present invention, the rotary take-up mechanism is provided with a first card hole having a proximal end portion and a distal end portion therethrough; the wire clamping mechanism further comprises a clamping pin inserted into the wire clamping barrel, wherein the clamping pin is clamped into the proximal end portion in the first position, and clamped into the distal end portion in the second position.
In some implementations of the embodiments of the present invention, the proximal portion is provided with a first limiting dome for limiting the bayonet, and the distal portion is provided with a second limiting dome for limiting the bayonet; the first position is moved to the second position, and the clamping pin drives the first limiting elastic piece and the second limiting elastic piece to deform in sequence.
In some implementations of the embodiments of the present invention, the rotating operation mechanism includes an operation cable, and the wire clamping operation mechanism includes an operation tube, and the operation cable passes through the operation tube.
According to the locking wire system for the valve repair operation, when the locking wire is operated, the rotary wire collecting mechanism is driven to rotate by the rotary operating mechanism, so that the locking wire is wound on the rotary wire collecting mechanism, the distance between two ends of the locking wire is shortened, the locking wire between two anchors is shortened, and the wire collecting operation is completed. And then the wire clamping mechanism is positioned at a second position through the wire clamping operation mechanism, so that wire locking is completed. The whole process is simple to operate, does not need to perform line cutting operation, shortens operation time and reduces damage to patients.
Drawings
Features, advantages, and technical effects of exemplary embodiments of the present invention will be described below by referring to the accompanying drawings.
FIG. 1 is a schematic diagram of a lockwire system for valve repair surgery according to an embodiment of the present invention;
FIG. 2 is an exploded view of a lockwire system for valve repair surgery provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the internal structure of a sewing thread system for valve repair surgery according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of the internal structure of a lockwire system for valve repair surgery provided in an unlocked state according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a schematic view showing an internal structure of a sewing thread system for valve repair operation according to an embodiment of the present invention in a locked state;
FIG. 7 is a sectional view B-B of FIG. 6;
FIG. 8 is a schematic diagram of a sewing system for valve repair surgery according to an embodiment of the present invention after sewing is completed;
fig. 9 is a schematic diagram of an application scenario for valve repair surgery according to an embodiment of the present invention.
Reference numerals:
1. a rotary wire-rewinding mechanism; 11. a rotating member; 111. a first connection portion; 112. a second connecting portion; 1121. a first clamping hole; 11211. a proximal portion; 11212. a distal portion; 11213. the first limiting elastic piece; 11214. the second limiting elastic piece; 113. a third connecting portion; 1131. a wire through hole; 12. a limiting piece; 2. a wire clamping mechanism; 21. a wire clamping cylinder; 211. a wire clamping part; 2111. wire clamping groove; 21111. a wire accommodating hole; 212. a slot; 213. a second clamping hole; 22. a bayonet lock; 3. a rotary operating mechanism; 31. an operation cable; 4. a wire clamping operation mechanism; 41. an operating tube; 411. a plug-in part; 100. locking the wire; 200. anchoring nails; 300. and (5) locking the wire piece.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described.
In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present invention and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the invention. In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Heart valve repair is a treatment for structural heart disease, and is largely divided into edge-to-edge repair, valve annulus repair, and chordae tendineae repair in terms of manner. In valve annulus repair, it is necessary to accurately and securely drive the anchors 200 (which may also be referred to as fasteners, implants, etc.) required to support the entire repair structure into the desired location, the anchors 200 being generally helical in shape, approximating a spring (see figures below).
After the anchors 200 are implanted, two adjacent anchors 200 are connected by the locking wire 100, so that in order to shrink and deform the valve annulus, the valve can be more tightly closed, thereby restoring the normal function of the valve, the locking wire 100 needs to be locked, i.e. the distance between two ends of the locking wire 100 between two adjacent anchors 200 is shortened. Thus, in valve repair surgery, the lockwire operation is a very critical step, which can help restore normal function to the valve.
The existing locking wire operation is generally to tighten the locking wire 100 through a locking wire structure, then the redundant part of the locking wire 100 is cut by utilizing a cutting structure, the whole process is complicated, the operation time is greatly prolonged, and the patient is damaged more, so that the postoperative recovery of the patient is not facilitated.
In view of the above, the present embodiment provides a locking wire system for valve repair surgery, which aims to solve the above technical problems by omitting the step of cutting or trimming the wire by improving the structure thereof.
For a better understanding of the present invention, embodiments of the present invention are described below with reference to fig. 1 to 9.
FIG. 1 is a schematic diagram of a lockwire system for valve repair surgery according to an embodiment of the present invention; fig. 2 is an exploded view of a lockwire system for valve repair surgery provided in an embodiment of the present invention.
As shown in fig. 1 and 2, the structure of the locking wire system for valve repair operation provided in this embodiment includes a rotary wire collecting mechanism 1, a wire clamping mechanism 2, a rotary operating mechanism 3, a wire clamping operating mechanism 4 and other functional mechanisms. The locking wire system is mainly used for tightening the locking wire 100 between two anchors 200 in the drawing, each anchor 200 is connected with a locking wire piece 300, and two ends of one locking wire 100 are connected with the two locking wire pieces 300 in a one-to-one correspondence.
In the above functional mechanism, the rotary wire winding mechanism 1 of the present embodiment is configured to allow the locking wire 100 to pass through, typically, the locking wire 100 is inserted into the rotary wire winding mechanism 1 of the present embodiment in advance, and then two ends of the locking wire 100 are abutted against two locking wire pieces 300. When the rotary wire winding mechanism 1 of the present embodiment rotates around its own axis, the locking wire 100 may be wound around the rotary wire winding mechanism 1, thereby achieving tightening of the locking wire 100.
Among the above functional mechanisms, the wire clamping mechanism 2 of the present embodiment is sleeved on the rotary wire collecting mechanism 1. And is configured to be movable on the rotary wire takeup mechanism 1 from a first position to a second position in which the wire clamping mechanism 2 clamps at least one of the two sides of the locking wire 100, the wire clamping mechanism 2 in fig. 1 having been in the second position. The wire clamping mechanism 2 of the present embodiment is designed to realize wire clamping, which can prevent the rotary wire winding mechanism 1 from reversely rotating after tightening the locking wire 100, and prevent the tightening locking wire 100 from being released again.
Among the above functional mechanisms, the rotary operating mechanism 3 of the present embodiment is connected to the rotary wire takeup mechanism 1 and is used to drive the rotary wire takeup mechanism 1 to rotate. The wire clamping operation mechanism 4 of the embodiment is connected with the wire clamping mechanism 2 and is used for driving the wire clamping mechanism 2 to move from the first position to the second position.
In some examples, the rotary operating mechanism 3 of the present embodiment includes an operating cable 31 in the drawing and a rotary operating handle not shown in the drawing, and the operating cable 31 may be made of metal or alloy. The wire clamping operation mechanism 4 of the present embodiment includes an operation tube 41 in the drawing and a wire clamping operation handle not shown in the drawing. And, optionally, the present embodiment penetrats the operation cable 31 into the operation pipe 41 to optimize the structural space.
Fig. 3 is a schematic diagram of an internal structure of a sewing thread system for valve repair surgery according to an embodiment of the present invention.
As shown in fig. 2 and 3, the rotary wire winding mechanism 1 of the present embodiment includes a rotary member 11, and the rotary member 11 includes a first connecting portion 111, a second connecting portion 112, and a third connecting portion 113 that are sequentially connected from a proximal end to a distal end, and each of the first connecting portion 111, the second connecting portion 112, and the third connecting portion 113 of the present embodiment may have a cylindrical shape in the drawing.
Of the above-described connection portions, the first connection portion 111 of the present embodiment is detachably connected to the rotary operation mechanism 3, and a specific connection manner may be that an internal thread (not shown) is provided on the first connection portion 111 and an external thread (not shown) is provided on the distal end of the operation cable 31 of the rotary operation mechanism 3. The second connecting portion 112 of the present embodiment is connected to the wire clamping mechanism 2 in a specific connection manner as will be described below. The third connecting portion 113 of the present embodiment is provided with a wire passing hole 1131 through which the locking wire 100 passes, so that the rotary wire winding mechanism 1 of the present embodiment performs a wire winding operation.
In addition, in order to enable the first connecting portion 111 of the present embodiment to wind the locking wire 100 a plurality of times, the present embodiment designs the radial dimension of the third connecting portion 113 to be much smaller than the radial dimension of the second connecting portion 112 so as to avoid affecting the movement of the wire clamping mechanism 2 to the second position after winding.
Further, the radial dimension of the first connecting portion 111 of the present embodiment is also designed to be smaller than the radial dimension of the second connecting portion 112, so that the first connecting portion 111 passes through the operation pipe 41 to dock the operation cable 31.
In addition, the rotary wire winding mechanism 1 of the present embodiment further includes a limiting plate 12. The limiting piece 12 is connected to one end of the third connecting portion 113 facing away from the second connecting portion 112, and is used for limiting the locking wire 100 wound on the third connecting portion 113, so as to prevent the locking wire 100 from being separated from the third connecting portion 113 after being wound on the third connecting portion 113. Namely, an annular groove structure for accommodating the locking wire 100 is formed by the limiting piece 12, the third connecting portion 113 and the second connecting portion 112.
Referring to fig. 2 and 3 again, the wire clamping mechanism 2 of the present embodiment includes a wire clamping cylinder 21, and the wire clamping cylinder 21 is sleeved on the rotary wire winding mechanism 1 of the present embodiment, specifically, is sleeved on the second connecting portion 112. The wire clamping cylinder 21 of the present embodiment is configured to be movable from the first position to the second position on the rotary wire winding mechanism 1.
The proximal end of the wire clamping cylinder 21 of the embodiment is detachably connected to the wire clamping operation mechanism 4, and the specific implementation of the wire clamping and dismounting connection can be plug-in fit, for example, a slot 212 is arranged at the proximal end of the wire clamping cylinder 21 in the illustration, and a plug-in part 411 is arranged at the distal end of the operation tube 41.
The distal end of the embodiment is provided with a wire clamping portion 211 for clamping at least one of two sides of the locking wire 100, and in some embodiments, the wire clamping portion 211 is a plurality of wire clamping grooves 2111 formed at intervals along the circumferential direction of the distal end of the wire clamping cylinder 21. The plurality of wire clamping grooves 2111 have an advantage in that wire clamping work can be performed at any circumferential position, and good wire clamping work can be performed on both sides of the lock wire 100.
Further, in the present embodiment, a guiding cambered surface (not shown) is provided on the distal end inner wall surface of the wire clamping groove 2111, so that the locking wire 100 can smoothly enter the wire clamping groove 2111. In addition, the proximal end of the wire clamping groove 2111 is further provided with a wire accommodating hole 21111 with a radial dimension larger than the width of the wire clamping groove 2111, so that the locking wire 100 after wire clamping is limited to a certain extent, and the locking wire 100 is prevented from being separated from the wire clamping groove 2111.
Referring to fig. 2 again, in order to realize that the wire clamping cylinder 21 of the present embodiment can be relatively fixed to the rotating member 11 in both the first position and the second position, in the present embodiment, the rotating member 11 of the wire winding mechanism 1 is provided with a first clamping hole 1121, specifically, the second connecting portion 112 is provided with the first clamping hole 1121, and the first clamping hole 1121 of the present embodiment penetrates through the second connecting portion 112 of the rotating member 11 along the radial direction of the rotating member 11. Also, the first card hole 1121 of the present embodiment has a proximal end portion 11211 and a distal end portion 11212 therethrough.
Correspondingly, the wire clamping mechanism 2 of the present embodiment further comprises a clamping pin 22 inserted into the second clamping hole 213 of the wire clamping cylinder 21, and when in the first position, the clamping pin 22 of the present embodiment is clamped into the proximal end portion 11211. When in the second position, the bayonet 22 snaps into the distal portion 11212.
Further, in this embodiment, a first limiting spring 11213 for limiting the bayonet 22 is further provided at the proximal portion 11211, and a second limiting spring 11214 for limiting the bayonet 22 is provided at the distal portion 11212. When the wire clamping cylinder 21 of the embodiment moves from the first position to the second position, the clamping pin 22 drives the first limiting elastic piece 11213 and the second limiting elastic piece 11214 to deform in sequence, and finally is clamped into the distal end portion 11212 of the embodiment.
FIG. 4 is a schematic illustration of the internal structure of a lockwire system for valve repair surgery provided in an unlocked state according to an embodiment of the present invention; fig. 5 is a sectional view A-A of fig. 4.
Referring to fig. 4 and 5, when the locking wire system of the present embodiment is in an unlocked state (i.e. when the wire clamping mechanism 2 is in the first position), the clamping pin 22 on the wire clamping cylinder 21 is located in the proximal end portion 11211 of the first clamping hole 1121, and at this time, the third connecting portion 113 of the rotating member 11 extends out of the wire clamping cylinder 21, so that the rotating member 11 can be rotated by the operating cable 31 to wind the locking wire 100, thereby shortening the length of the locking wire 100 and realizing tightening of the locking wire 100.
FIG. 6 is a schematic view showing an internal structure of a sewing thread system for valve repair operation according to an embodiment of the present invention in a locked state; fig. 7 is a sectional view of B-B of fig. 6.
Referring to fig. 6 and 7, after the locking wire 100 is tightened, the wire clamping cylinder 21 of the present embodiment is driven by the operating tube 41 to move distally, so that the wire clamping mechanism 2 moves from the first position to the second position, at this time, the clamping pin 22 of the present embodiment drives the first limiting elastic piece 11213 and the second limiting elastic piece 11214 to deform in sequence, and finally the clamping pin 22 is located in the distal end portion 11212 of the first clamping hole 1121 and is limited by the second limiting elastic piece 11214. At the same time, both sides of the locking wire 100 enter the two wire clamping grooves 2111 of the wire clamping cylinder 21, respectively, thereby completing wire clamping.
Fig. 8 is a schematic structural view of a sewing system for valve repair surgery according to an embodiment of the present invention after sewing is completed.
As shown in fig. 8, after the wire clamping is completed, the operation wire 31 is reversely rotated to release the connection of the operation wire 31 and the first connection portion 111. And also requires insertion of the contact manipulation tube 41 into the proximal end of the wire clamping cylinder 21 of the present embodiment, which eventually results in the state shown in the drawings.
Fig. 9 is a schematic diagram of an application scenario for valve repair surgery according to an embodiment of the present invention.
It should be noted that, referring to fig. 9, the number of the rotating wire winding mechanism 1 and the wire clamping mechanism 2 of the wire locking system in the valve repair operation of the present embodiment may be determined according to the number of the anchors 200, the locking wire 100 between each two adjacent anchors 200 needs to be locked by the rotating wire winding mechanism 1 and the wire clamping mechanism 2, and the rotating wire winding mechanism 1 and the wire clamping mechanism 2 remain in the human body after operation, and the materials thereof should be selected as the implantable materials.
In the present embodiment, the number of the rotating operation mechanisms 3 and the wire clamping operation mechanisms 4 is designed to be detachably connected with the rotating winding mechanism 1 and the wire clamping mechanism 2 respectively, so that only one group of rotating operation mechanisms 3 and wire clamping operation mechanisms 4 can be used, and the wire locking can be realized by matching one group of rotating operation mechanisms 3 and wire clamping operation mechanisms 4 with a plurality of groups of rotating winding mechanisms 1 and wire clamping mechanisms 2.
In summary, according to the locking system for valve repair operation provided by the embodiment of the invention, when the locking operation is performed, the rotating operation mechanism 3 drives the rotating wire collecting mechanism 1 to rotate, so that the locking wire 100 is wound on the rotating wire collecting mechanism 1, the distance between two ends of the locking wire 100 is shortened, and the locking wire 100 between two anchors 200 is shortened, thereby completing the wire collecting operation. Then the wire clamping mechanism 2 is positioned at the second position through the wire clamping operation mechanism 4, and wire locking is completed. The whole process is simple to operate, does not need to perform line cutting operation, shortens operation time and reduces damage to patients.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (7)
1. A lockwire system for valve repair surgery, comprising:
a rotary wire-rewinding mechanism (1) configured to be penetrated by a locking wire (100); the rotary wire winding mechanism (1) is provided with a first clamping hole (1121), and the first clamping hole (1121) is provided with a through proximal end part (11211) and a through distal end part (11212);
the wire clamping mechanism (2) comprises a wire clamping cylinder (21), the wire clamping cylinder (21) is sleeved on the rotary wire collecting mechanism (1) and is configured to move from a first position to a second position on the rotary wire collecting mechanism (1), and at least one of two sides of the locking wire (100) is clamped by the wire clamping mechanism (2) in the second position; the wire clamping mechanism (2) further comprises a clamping pin (22) inserted into the wire clamping cylinder (21), wherein the clamping pin (22) is clamped into the proximal end part (11211) when the wire clamping mechanism is in the first position, and the clamping pin (22) is clamped into the distal end part (11212) when the wire clamping mechanism is in the second position; the proximal end part (11211) is provided with a first limiting elastic piece (11213) for limiting the bayonet (22), and the distal end part (11212) is provided with a second limiting elastic piece (11214) for limiting the bayonet (22);
when the first position is moved to the second position, the bayonet (22) drives the first limit elastic piece (11213) and the second limit elastic piece (11214) to deform in sequence;
the rotary operating mechanism (3) is connected with the rotary wire collecting mechanism (1) and is used for driving the rotary wire collecting mechanism (1) to rotate; and
the wire clamping operation mechanism (4) is connected with the wire clamping mechanism (2) and is used for driving the wire clamping mechanism (2) to move from the first position to the second position;
the proximal end of the wire clamping cylinder (21) is detachably connected with the wire clamping operation mechanism (4), and the distal end of the wire clamping cylinder is provided with a wire clamping part (211) for clamping at least one of two sides of the locking wire (100).
2. The lockwire system for valve repair surgery of claim 1, wherein:
the rotary wire winding mechanism (1) comprises a rotary piece (11);
the rotating piece (11) comprises a first connecting part (111), a second connecting part (112) and a third connecting part (113) which are sequentially connected from the proximal end to the distal end;
the first connecting part (111) is detachably connected with the rotary operating mechanism (3), the second connecting part (112) is connected with the wire clamping mechanism (2), and the third connecting part (113) is provided with a wire passing hole (1131) for the locking wire (100) to pass through.
3. The lockwire system for valve repair surgery of claim 2, wherein:
the radial dimension of the second connecting portion (112) is larger than the radial dimension of the first connecting portion (111) and the third connecting portion (113).
4. The lockwire system for valve repair surgery of claim 2, wherein:
the first connecting part (111) is in threaded connection with the rotary operating mechanism (3).
5. The lockwire system for valve repair surgery of claim 2, wherein:
the rotary wire-rewinding mechanism (1) further comprises a limiting piece (12);
the limiting piece (12) is connected to one end, away from the second connecting portion (112), of the third connecting portion (113), and is used for limiting the locking wire (100) wound on the third connecting portion (113).
6. The lockwire system for valve repair surgery of claim 1, wherein:
the wire clamping part (211) is provided with a plurality of wire clamping grooves (2111) which are formed along the circumferential direction of the far end of the wire clamping cylinder (21) at intervals.
7. The lockwire system for valve repair surgery of any one of claims 1-5, wherein:
the rotary operating mechanism (3) comprises an operating cable (31), the wire clamping operating mechanism (4) comprises an operating tube (41), and the operating cable (31) penetrates through the operating tube (41).
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| CN202310814394.3A CN116531148B (en) | 2023-07-05 | 2023-07-05 | A lockwire system for valve repair operation |
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| CN202310814394.3A CN116531148B (en) | 2023-07-05 | 2023-07-05 | A lockwire system for valve repair operation |
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| CN116531148A (en) | 2023-08-04 |
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