CN113476179B - Adjustable atrioventricular valve opening plasty ring - Google Patents
Adjustable atrioventricular valve opening plasty ring Download PDFInfo
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- CN113476179B CN113476179B CN202110561888.6A CN202110561888A CN113476179B CN 113476179 B CN113476179 B CN 113476179B CN 202110561888 A CN202110561888 A CN 202110561888A CN 113476179 B CN113476179 B CN 113476179B
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- elastic support
- ring body
- rotating shaft
- atrioventricular valve
- shaft
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- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract 24
- 238000013016 damping Methods 0.000 claims description 19
- -1 polypropylene Polymers 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000002861 polymer material Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
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- 229910000531 Co alloy Inorganic materials 0.000 claims description 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 238000004904 shortening Methods 0.000 claims 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims 1
- 230000004217 heart function Effects 0.000 abstract description 2
- 206010067171 Regurgitation Diseases 0.000 abstract 1
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 7
- 210000004115 mitral valve Anatomy 0.000 description 7
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 210000002837 heart atrium Anatomy 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 238000009958 sewing Methods 0.000 description 4
- 210000000591 tricuspid valve Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 210000005246 left atrium Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000005245 right atrium Anatomy 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010008479 Chest Pain Diseases 0.000 description 1
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- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 206010037423 Pulmonary oedema Diseases 0.000 description 1
- 201000001943 Tricuspid Valve Insufficiency Diseases 0.000 description 1
- 238000002399 angioplasty Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 210000005240 left ventricle Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- A61F2/2445—Annuloplasty rings in direct contact with the valve annulus
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
一种可调节式房室瓣开口成形环，涉及医疗器械领域，包括成形环环体、弹性支撑器、调节丝、调节器、固定座。当所述调节器驱动转轴实现顺时针或逆时针转动时，带动所述调节丝的收短或延长，所述弹性支撑器会跟随所述调节丝的变化进行收缩或拉伸，实现所述成形环环体形态和长度的微调，所述调节器具有自锁结构，可保持调节后的状态。将其应用于房室瓣成形环手术，可实现术中或术后的房室瓣开口成形环尺寸多次调整，有效解决了房室瓣关闭不全和返流复发问题，同时伸缩性弹性支撑器可适应房室瓣的运动规律，从而降低对心脏功能的影响。
An adjustable atrioventricular valve opening shaping ring relates to the field of medical devices, and includes a shaping ring body, an elastic support, an adjusting wire, an adjuster, and a fixing seat. When the adjuster drives the rotating shaft to rotate clockwise or counterclockwise, it drives the adjusting wire to shorten or lengthen, and the elastic support will contract or stretch following the change of the adjusting wire to achieve fine adjustment of the shape and length of the shaping ring body. The adjuster has a self-locking structure and can maintain the adjusted state. Applying it to atrioventricular valve shaping ring surgery can achieve multiple adjustments to the size of the atrioventricular valve opening shaping ring during or after the operation, effectively solving the problems of atrioventricular valve insufficiency and regurgitation recurrence. At the same time, the retractable elastic support can adapt to the movement law of the atrioventricular valve, thereby reducing the impact on heart function.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an adjustable atrioventricular valve opening forming ring.
Background
The atrioventricular valve is connective tissue located between the atrium and the ventricle and normally opens only towards the ventricle, preventing backflow of blood from the ventricle back to the atrium, i.e. preventing backflow of blood, when the ventricle contracts and the pressure increases. The left and right atrioventricular valves are respectively named as mitral valve, and are used for separating left atrium from left ventricle to prevent blood flowing back to left atrium when systole occurs, and the right atrioventricular valve is used for separating right atrium from right ventricle to prevent blood flowing back to right atrium when systole occurs. Mitral valve and tricuspid valve insufficiency are one of the most common atrioventricular valve diseases, and when the mitral valve or tricuspid valve is not closed, blood in an atrium cannot enter a ventricle through valve leaflets, or flows back to an atrium, the pressure of the atrium rises, pulmonary edema is caused, symptoms such as shortness of breath, tiredness, dizziness, chest pain and the like are manifested, heart failure is possibly caused when serious, and the heart failure is particularly common in the elderly.
There have been two long-felt surgical approaches to atrioventricular valve insufficiency, one being annuloplasty and the other valve replacement. Most, if not all, of the cases of atrioventricular valve insufficiency are likely to be repaired by atrioventricular valve angioplasty. The artificial mitral valve is placed into the valve annulus, the enlarged valve annulus can be corrected, the normal shape and the size of the atrioventricular valve annulus can be restored and remodelled, the involution area of the valve leaflet can be increased, and the reflux can be reduced to the greatest extent.
The present invention is exemplified by a hard, open-ended forming ring commonly used in clinic. One of the keys to success of a prosthetic atrioventricular valve is to properly estimate and control the morphology and length of the prosthetic atrioventricular valve annulus. The measurement of the valve annulus requires an open chest operation, fiber triangles are determined during the operation, and the size and shape of the valve annulus are compared by using a valve measuring device, so that the size of the artificial valve annulus is determined. The problems to be solved in the current operation are (1) the size of an artificial valve annulus is determined by comparing the distance between a valve measuring device and two fiber triangles, the model closest to the distance is the most suitable implanted forming ring, but the selected model has errors and is easy to cause unsatisfactory postoperative repair quality, (2) the current operation of an atrioventricular valve forming ring needs to be conducted in an extracorporeal circulation mode, the operation effect cannot be quite accurate in a non-physiological state, a long recovery period is needed after the operation, the repair quality of the mitral valve or the tricuspid valve can be evaluated through an ultrasonic technology only after the heart is recovered to beat, if the repair is unsatisfactory, only secondary operation can be started, thereby increasing operation risk and increasing patient trauma, (3) the operation is that the mitral valve or the tricuspid valve is required to be replaced after the operation, the operation is difficult to be adjusted on the existing forming ring, and the operation process is difficult, 4) the traditional hard ring has good fixing effect on the atrioventricular valve, the caliber of the atrioventricular valve ring is kept relatively fixed, the atrioventricular valve opening area is lost, and the atrioventricular valve annular state is damaged
Disclosure of Invention
The invention aims to provide an adjustable atrioventricular valve opening forming ring which is applied to mitral valve or tricuspid valve forming repair operation and can adjust the forming ring shape according to individual differences of patients so as to realize forming ring adjustment during operation or after operation.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an adjustable atrioventricular valve opening forming ring device which characterized in that, forming ring body is the stereoplasm forming ring that has two free ends, including forming ring body, A elastic support ware, B elastic support ware, A adjusting wire, B adjusting wire, regulator, A fixing base, B fixing base.
Further, the outside of the atrioventricular valve forming ring is entirely coated with biocompatible medical cloth, the thickness of the biocompatible medical cloth is 0.2-0.5mm, and the material is polyester, polyamide, polypropylene, polytetrafluoroethylene and the like.
The atrioventricular valve forming annular body is divided into a left annular body and a right annular body by the regulator, and buckling adjustment of the left annular body and the right annular body can be carried out by regulating the regulating wires.
Further, the diameter of the regulating wire is 0.3-0.8mm, and the regulating wire is made of medical nylon or carbon fiber and the like.
The A adjusting wire and the B adjusting wire are respectively distributed at two ends of the adjuster, the A fixing seat and the B fixing seat are respectively fixed at two free ends of the forming ring body, the fixed end of the A adjusting wire is fixed on the A fixing seat, the free end of the A adjusting wire is wound on the rotating shaft of the adjuster, the fixed end of the B adjusting wire is fixed on the B fixing seat, and the free end of the B adjusting wire is wound on the rotating shaft of the adjuster.
The elastic support A and the elastic support B are respectively distributed at two ends of the regulator, two ends of the elastic support A are respectively fixed, one end of the elastic support A is fixed at the left side of the regulator, one end of the elastic support A is fixed on the fixed seat A, two ends of the elastic support B are respectively fixed, one end of the elastic support B is fixed at the right side of the regulator, one end of the elastic support B is fixed on the fixed seat B, the inner through hole of the elastic support A penetrates through the regulating wire A, and the inner through hole of the elastic support B penetrates through the regulating wire B.
Further, the elastic support A and the elastic support B have telescopic functions, fine adjustment of the shape and the length can be performed according to the length of the adjusting wire, and the functions of the elastic supports can be achieved through various schemes.
Preferably, the elastic support is a uniformly compressible or uniformly stretchable spring, and an elastic sleeve is sleeved outside the spring. The elastic sleeve is provided with a certain telescopic elasticity and plays a supporting role on the forming ring body, and the surface of the elastic sleeve is provided with a hollow structure so as to realize bending of the elastic sleeve in a certain angle range.
Preferably, the elastic support is a composite elbow capable of sliding without barriers, and the composite elbow is divided into an inner elbow and an outer elbow. The outer surface of the inner elbow is provided with a convex sliding block, and the inner surface of the outer elbow is provided with a concave sliding groove. The inner bent pipe and the outer bent pipe are connected and matched, accessible sliding can be realized while the adjusting wire is shortened and prolonged, and the shape and the length of the forming ring can be adjusted.
Further, the elastic support is made of medical polymer materials or metal materials, and polyester, polyamide, polypropylene, polytetrafluoroethylene and the like or titanium alloy, stainless steel, cobalt-based alloy and the like can be selected.
The adjuster comprises a shell, a rotating shaft used for winding the A adjusting wire and the B adjusting wire, a rotating shaft seat used for supporting the rotating shaft, a taper sleeve and a damping piece used for being matched to realize self-locking, and a protruding shaft used for driving the rotating shaft to rotate clockwise or anticlockwise.
Further, the rotating shaft is a multi-diameter step shaft, and one end of the rotating shaft is in contact connection with the damping piece.
Further, the rotating shaft seat and the damping piece radially fix the rotating shaft, and the rotating shaft seat is positioned in the middle of the forming ring and does not generate axial and radial displacement.
Further, the top of the taper sleeve is of a structure with a V-shaped groove and is matched with the convex shaft, and the taper sleeve is tightly matched with the rotating shaft in a matching mode including but not limited to spline connection, flat key connection, pin connection, interference connection or expansion connection.
Further, the contact surface at the bottom of the convex shaft is provided with a convex structure, and the V-shaped groove on the taper sleeve is matched with the convex on the convex shaft.
Further, a through hole is formed in the middle of the shell, so that the elastic support A and the elastic support B are conveniently connected with each other.
Further, when the protruding shaft does not rotate, the protruding shaft is pressed downwards by the shell, the shell is pushed upwards by the protruding shaft, friction force is formed at the contact position of the shell and the protruding shaft, and rotation of the rotating shaft is limited.
Further, when the protruding shaft is rotated, a part of axial thrust is formed at the V-shaped groove of the taper sleeve to drive the damping piece to compress, friction force between the protruding shaft and the shell disappears, and at the moment, the rotating shaft can rotate clockwise or anticlockwise according to requirements.
Further, when the protruding shaft is rotated, a part of radial thrust is formed at the V-shaped groove of the taper sleeve, and the part of radial thrust is held in the driving direction of the protruding shaft, so that an operator can easily drive the rotating shaft to rotate clockwise or anticlockwise.
Further, when the protruding shaft is loosened, the shape of the damping piece rebounds, friction is generated when the protruding shaft contacts with the shell, the rotation freedom degree of the rotating shaft is limited, and the motion self-locking of the regulator is achieved.
Further, the damping piece is a part made of elastic materials, deforms under the action of external force, and can recover after the external force is removed, and the damping piece is optionally provided with a compression spring or an elastic structural member with the same function and is made of medical metal materials.
The A regulating wire and the B regulating wire are respectively wound on the rotating shaft, and the winding directions are opposite. When the protruding shaft of the regulator rotates clockwise or anticlockwise, the A regulating wire and the B regulating wire are driven to be contracted or prolonged simultaneously, the A elastic support and the B elastic support are contracted or stretched simultaneously, the left ring body and the right ring body of the forming ring are compressed or stretched simultaneously, the protruding shaft position can be kept, and the shape and the length of the ring body of the forming ring are adjusted.
Compared with the prior art, the invention has the beneficial effects that:
1. The adjustable atrioventricular valve opening forming ring can select the atrioventricular valve forming rings with similar sizes according to individual differences of patients, and further can finely adjust the selected atrioventricular valve opening forming ring to adapt to the atrioventricular valve shape of the patients;
2. The adjustable atrioventricular valve opening forming ring is provided with the adjustable component, can be adjusted bidirectionally according to the operation effect, has the function of keeping the adjusted shape, and is convenient to operate;
3. The adjustable atrioventricular valve opening forming ring is characterized in that the ring body part is a telescopic elastic support, when the adjusting wire is shortened or lengthened, the forming ring can realize the adjustment of the shape and the length at the same time, and meanwhile, the telescopic elastic support can adapt to the movement rule of the atrioventricular valve, so that the influence on the heart function is reduced.
Drawings
Fig. 1 is a perspective view of an adjustable atrioventricular valve opening forming ring.
Fig. 2 is a schematic view of an adjustable atrioventricular valve opening forming ring structure.
FIG. 3 is a schematic view of the position of an adjustable atrioventricular valve opening forming ring suture tab.
Fig. 4 is a schematic view of an adjustable atrioventricular valve opening forming ring structure according to an embodiment.
Fig. 5 is a schematic view of an adjustable atrioventricular valve opening forming ring structure according to an embodiment.
FIG. 6 is a schematic view of an alternative elastomeric support unit configuration of an adjustable atrioventricular valve opening forming ring.
FIG. 7 is a schematic view of an alternative flexible support unit configuration of an adjustable atrioventricular valve opening forming ring.
FIG. 8 is a schematic view of an adjustable atrioventricular valve opening forming ring regulator. Wherein, FIG. 8-A is a schematic diagram of the structure of the regulator of the forming ring of the adjustable atrioventricular valve opening, FIG. 8-B is a schematic diagram of the concrete implementation of the rocker on the convex shaft of the regulator, FIG. 8-C is the analysis of the internal stress of the regulator when the convex shaft is rotated clockwise, and FIG. 8-D is the analysis of the internal stress of the regulator when the convex shaft is rotated anticlockwise.
Fig. 9 is a schematic view of a holder structure for an adjustable atrioventricular valve opening forming ring.
The reference numerals are 1, formed annular body, 2, elastic support, 3, adjusting wire, 4, adjuster, 5, fixing seat, 11, left annular body, 12, right annular body, 13, suture sheet, 21, A elastic support, 22, B elastic support, 23, elastic sleeve, 24, spring, 25, outer elbow, 26, inner elbow, 31, A adjusting wire, 32, B adjusting wire, 41, shell, 42, convex shaft, 43, taper sleeve, 44, rotary shaft, 45, damping piece, 46, rotary shaft seat, 51, A fixing seat, 52, B fixing seat, 53, fixing groove and 54, fixing hole
Detailed Description
For the purposes, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific examples, but the present invention is not limited by the examples.
Please refer to fig. 1 and 2, which are a perspective view and a schematic view of an adjustable atrioventricular valve opening forming ring. The embodiment provides an adjustable atrioventricular valve opening forming ring which comprises a forming ring body 1, an elastic support 2, an adjusting wire 3, an adjuster 4 and a fixing seat 5. The forming ring body 1 is a hard forming ring with two free ends, the regulator 4 is arranged in the middle of the forming ring body 1 and divides the forming ring body 1 into a left ring body 11 and a right ring body 12, two regulating wires 3 are respectively an A regulating wire and a B regulating wire which are symmetrically distributed at two ends of the regulator 4, two fixing seats 5 are respectively an A fixing seat and a B fixing seat which are symmetrically fixed at two free ends of the forming ring body 1, the fixed end of the A regulating wire 31 is fixed on the A fixing seat 51, the free end is wound on the regulator rotating shaft 44, the fixed end of the B regulating wire 32 is fixed on the B fixing seat 52, the free end is wound on the regulator rotating shaft 44, the A elastic support 21 and the B elastic support 22 are respectively distributed at two ends of the regulator 4, one end of the A elastic support 21 is fixed at the left side of the regulator 4, one end of the A elastic support 22 is fixed on the A fixing seat 51, one end of the B elastic support 22 is respectively fixed at two ends of the B elastic support 22, one end of the B elastic support 22 is respectively fixed at the two ends of the regulator 4, and one end of the B elastic support 22 penetrates through the inside of the regulator 31 and penetrates through the through hole 32.
Please refer to fig. 3. The adjustable atrioventricular valve opening forming ring 1 is divided into a left ring body 11 and a right ring body 12 by the regulator 4, and the left ring body and the right ring body can realize buckling adjustment. The outside is wholly coated with biocompatible medical cloth, the thickness of the biocompatible medical cloth is 0.2-0.5mm, and the biocompatible medical cloth is made of polyester, polyamide, polypropylene, polytetrafluoroethylene and the like. The formed ring body 1 is provided with 7 sewing pieces 13 which are distributed in an axisymmetric way, the sewing pieces 13 are distributed on the outer side of the formed ring body 1, and the sewing pieces 13 are preferably positioned on the inner side of the formed ring body 1. The sewing piece 13 is fixed on the medical cloth, and does not interfere with fine adjustment of the length and the shape of the formed ring body 1 when the formed ring body 1 is sewn. The suture sheet 13 is made of medical polymer material, and the suture sheet 13 is square, round, oval, fan-shaped or other polygonal shapes.
Please refer to fig. 4 and 5. The elastic support 21 and the elastic support 22 of the adjustable atrioventricular valve opening forming ring 1 have telescopic functions, the form and the length of the elastic support 2 can be finely adjusted according to the length of the adjusting wire 3, and the functions of the elastic support 2 can be realized by various schemes. With reference to fig. 6, the elastic support 2 is preferably a spring 24 that can be uniformly compressed or uniformly stretched, an elastic sleeve 23 is sleeved outside the spring 24, the elastic sleeve 23 has elasticity, and the surface of the elastic sleeve 23 has a hollow structure, so that the elastic sleeve 23 can be bent within a range of 30 °. Referring to fig. 7, the elastic support 2 is preferably a composite elbow capable of sliding without obstacle, the composite elbow is divided into an outer elbow 25 and an inner elbow 26, the inner surface of the outer elbow 25 is provided with concave sliding grooves, the number of the sliding grooves is 2-6, the outer surface of the inner elbow 26 is provided with convex sliding blocks, and the number of the sliding blocks is 2-6. The outer elbow pipe 25 and the inner elbow pipe 26 are connected and matched, so that the accessible sliding can be realized while the adjusting wire 3 is shortened and prolonged, and the shape and the length of the forming ring 1 can be adjusted.
The elastic support 2 of the adjustable atrioventricular valve opening forming ring 1 is made of medical polymer materials, and can be selected from polyester, polyamide, polypropylene, polytetrafluoroethylene and the like.
Please refer to fig. 8 and fig. 8-a. The adjuster 4 of the adjustable atrioventricular valve opening forming ring comprises a housing 41, a protruding shaft 42 for realizing clockwise or anticlockwise rotation of the rotating shaft, a taper sleeve 43 for realizing self-locking in a matching manner, a rotating shaft 44 for winding the A adjusting wire 31 and the B adjusting wire 32, a damping member 45 and a rotating shaft seat 46 for supporting the rotating shaft. The rotating shaft 44 is a multi-diameter stepped shaft, and one end of the shaft is in contact connection with the damping member 45. The rotating shaft seat 46 and the damping piece 45 radially fix the rotating shaft 44, and the rotating shaft seat 46 is positioned in the middle of the forming ring 1 and does not generate axial and radial displacement. The top of the taper sleeve 43 is in a structure with a V-shaped groove, and the taper sleeve 43 and the rotating shaft 44 are connected through a spline, and optional modes in implementation include but are not limited to spline connection, flat key connection, pin connection, interference connection or expansion connection. The bottom contact surface of the protruding shaft 42 has a protruding structure, and the V-shaped groove on the taper sleeve 43 is matched with the protruding on the protruding shaft 42. The middle part of the housing 41 is provided with a through hole, which is convenient for the connection of the A elastic support 21 and the B elastic support 22. The convex shaft 42 is rotated by a rocker, and alternative embodiments include, but are not limited to, rockers, hexagons, or other special embodiments, as shown in fig. 8-B.
Please refer to fig. 9. The a fixing base 51 and the B fixing base 52 have fixing grooves 53 for fixing the a elastic support 21 and the B elastic support 22, and fixing holes 54 for fixing the a adjusting wire 31 and the B adjusting wire 32, respectively.
Specifically, referring to fig. 8-C and 8-D, when the shaft 42 is rotated clockwise or counterclockwise, an axial thrust force F 1 or F 1 ',45 is formed at the V-groove of the cone sleeve 43 to compress, friction force between the shaft 42 and the housing 41 disappears, and the shaft 44 can rotate clockwise or counterclockwise, and when the shaft 42 is rotated clockwise or counterclockwise, a radial thrust force F 2 or F 2 ', a radial thrust force F 2 or F 2 ', is formed at the V-groove of the cone sleeve 43, and is held in the driving direction of the shaft 42, so that an operator can easily drive the shaft to rotate clockwise or counterclockwise, and when the shaft 42 is released, the damper 45 is rebound in shape, and the shaft 42 is tightly contacted with the housing 41 to generate friction, thereby restricting the rotational freedom degree of the shaft 44 and realizing motion self-locking of the regulator 4. The damping piece is a part made of elastic materials, deforms under the action of external force, and can be restored to the original state after the external force is removed, and the damping piece is optionally provided with a compression spring or an elastic structural member with the same function and is made of medical metal materials.
The a adjusting wire 31 and the B adjusting wire 32 are wound around the rotating shaft 44, respectively, in opposite winding directions. When the protruding shaft 42 of the regulator 4 rotates clockwise or anticlockwise, the adjusting wire a 31 and the adjusting wire B32 are driven to be contracted or lengthened simultaneously, so that the elastic support a 21 and the elastic support B22 are contracted or stretched simultaneously, the left ring body 11 and the right ring body 12 of the forming ring are compressed or stretched simultaneously, the protruding shaft 42 can be kept in position, the shape and the length of the forming ring body 1 can be adjusted, namely, when the postoperative atrioventricular valve opening forming ring 1 does not completely solve the problem of atrioventricular valve backflow or atrioventricular valve incomplete recurrence, real-time fine adjustment can be performed on the atrioventricular valve opening forming ring 1, and the adjusting process is simple and easy to operate.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments, and those skilled in the art will appreciate that any equivalent replacement or modification may be made to the technical solution and technical content disclosed in the present invention without departing from the scope of the technical solution of the present invention, and the present invention is still within the scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110561888.6A CN113476179B (en) | 2021-05-23 | 2021-05-23 | Adjustable atrioventricular valve opening plasty ring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN114176841B (en) * | 2021-12-24 | 2023-07-07 | 上海御瓣医疗科技有限公司 | Heart valve forming ring |
| CN117598838A (en) * | 2022-11-22 | 2024-02-27 | 宁波健世科技股份有限公司 | A heart valve forming system |
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| CN102341063A (en) * | 2008-12-22 | 2012-02-01 | 瓦尔泰克卡迪欧有限公司 | Adjustable annuloplasty devices and adjustment mechanisms therefor |
| CN105326582A (en) * | 2008-12-22 | 2016-02-17 | 瓦尔泰克卡迪欧有限公司 | Adjustable cingulum shaping apparatus and adjusting mechanism therefor |
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| US6187040B1 (en) * | 1999-05-03 | 2001-02-13 | John T. M. Wright | Mitral and tricuspid annuloplasty rings |
| EP2136738A4 (en) * | 2007-03-30 | 2011-03-09 | Micardia Corp | Adjustable annuloplasty ring and activation system |
| US9107749B2 (en) * | 2010-02-03 | 2015-08-18 | Edwards Lifesciences Corporation | Methods for treating a heart |
| US9918840B2 (en) * | 2011-06-23 | 2018-03-20 | Valtech Cardio, Ltd. | Closed band for percutaneous annuloplasty |
| WO2014190329A1 (en) * | 2013-05-24 | 2014-11-27 | Valcare, Inc. | Heart and peripheral vascular valve replacement in conjunction with a support ring |
| CN103735337B (en) * | 2013-12-31 | 2016-08-17 | 金仕生物科技（常熟）有限公司 | Artificial heart valve forming ring |
| CN114515173B (en) * | 2015-04-30 | 2025-01-28 | 爱德华兹生命科学创新(以色列)有限公司 | Valvuloplasty techniques |
| CN105769388B (en) * | 2016-04-28 | 2017-09-19 | 上海纽脉医疗科技有限公司 | A kind of mitral valve forming ring |
| CN107753152A (en) * | 2016-08-22 | 2018-03-06 | 北京市普惠生物医学工程有限公司 | Valve forming ring |
| CN106264792A (en) * | 2016-09-26 | 2017-01-04 | 上海纽脉医疗科技有限公司 | A kind of artificial mitral valve forming ring |
| CN107049558B (en) * | 2017-01-18 | 2019-04-30 | 中国医学科学院阜外医院 | Adjustable Heart Valvuloplasty Device |
| CN106821549A (en) * | 2017-04-01 | 2017-06-13 | 上海纽脉医疗科技有限公司 | Adjustable mitral valve forming ring |
| CA3070111A1 (en) * | 2017-07-18 | 2019-01-24 | Kephalios S.A.S. | Adjustable percutaneous annuloplasty devices, delivery systems, a method for percutaneously deploying an annuloplasty device and a method performed by one or more processing devices |
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| CN102341063A (en) * | 2008-12-22 | 2012-02-01 | 瓦尔泰克卡迪欧有限公司 | Adjustable annuloplasty devices and adjustment mechanisms therefor |
| CN105326582A (en) * | 2008-12-22 | 2016-02-17 | 瓦尔泰克卡迪欧有限公司 | Adjustable cingulum shaping apparatus and adjusting mechanism therefor |
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