CN111772882A - Pulmonary artery support and pulmonary valve replacement device convenient to control - Google Patents

Pulmonary artery support and pulmonary valve replacement device convenient to control Download PDF

Info

Publication number
CN111772882A
CN111772882A CN202010827976.1A CN202010827976A CN111772882A CN 111772882 A CN111772882 A CN 111772882A CN 202010827976 A CN202010827976 A CN 202010827976A CN 111772882 A CN111772882 A CN 111772882A
Authority
CN
China
Prior art keywords
support
stent
outflow
control
pulmonary artery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010827976.1A
Other languages
Chinese (zh)
Other versions
CN111772882B (en
Inventor
王云兵
蔡伊凡
雷洋
杨立
陈宇
熊艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan University
Original Assignee
Sichuan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan University filed Critical Sichuan University
Priority to CN202010827976.1A priority Critical patent/CN111772882B/en
Publication of CN111772882A publication Critical patent/CN111772882A/en
Application granted granted Critical
Publication of CN111772882B publication Critical patent/CN111772882B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • A61F2/2412—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 with soft flexible valve members, e.g. tissue valves shaped like natural valves
    • A61F2/2418—Scaffolds therefor, e.g. support stents
    • 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
    • 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
    • A61F2/2463—Implants forming part of the valve leaflets

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial 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)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention discloses a pulmonary artery stent convenient to control, which comprises a tubular supporting net rack, a fixing piece, an outflow stent and at least two groups of aortic stents, wherein the supporting net rack consists of continuous regular hexagon rotating units, and vertexes of the rotating units, which are positioned at two ends of the supporting net rack, are connecting points; the aorta support includes support bar and four auxiliary strips, and the both ends of support bar are connected with two tie points at a distance from the farthest respectively, and four auxiliary strips are connected with four tie points one-to-one that are located the centre, and the auxiliary strip deviates from the one end and the support bar of tie point and connects in a point, and the mounting is located the junction of support bar and auxiliary strip, and the outflow support is located the other end of support rack. The connecting line between the rotating units in the pulmonary artery stent convenient to control is longer, the adjacent two rotating units rotate along the connecting line, the rotating direction is stable and reliable during rotation, and the occurrence of accidents in the installation process can be effectively avoided and reduced.

Description

Pulmonary artery support and pulmonary valve replacement device convenient to control
Technical Field
The application relates to the field of medical equipment, in particular to a pulmonary artery stent and a pulmonary artery valve replacement device convenient to control.
Background
The pulmonary stenosis usually refers to the stenosis of the pulmonary valve or the stenosis of the pulmonary valve combined with the right ventricular outflow tract, which can exist alone or be one of the lesions of other complicated congenital heart diseases (such as the four-gang syndrome of Fale), and the incidence rate of the pulmonary stenosis accounts for 10 to 20 percent of the total number of the congenital heart diseases. According to the different locations of stenosis, it can be divided into stenosis of pulmonary valve, stenosis of infundibulum, and main and branch stenosis of pulmonary artery, among which the stenosis of pulmonary valve is the most common. The operation mode of the pulmonary artery stenosis is determined according to different lesions. The current procedure for treating a waste valve is mainly a valve replacement, i.e. a valve replacement with a prosthetic pulmonary valve.
In the prior art, the pulmonary artery valve stent generally comprises a compressible pulmonary artery stent and valve leaflets, wherein the pulmonary artery stent has good biocompatibility and can be safely, stably and reliably placed at the corresponding position of the pulmonary artery valve.
The pulmonary artery stent disclosed by the prior art has contractility, the contraction units are rhombic, and relative rotation between the contraction units can be controlled by using connection points between the contraction units, but the rotation direction of the contraction units cannot be accurately controlled, so that deviation of the contraction direction is easily caused in the operation process, and the injury is caused to a patient.
Disclosure of Invention
The present application discloses a pulmonary artery stent and a pulmonary valve replacement device that are convenient to control, in order to improve the above-mentioned problems.
The invention is particularly such that:
in view of the above object, the present invention discloses a pulmonary artery stent convenient to control, comprising:
the supporting net rack is tubular and consists of continuous rotating units, the adjacent rotating units are rotatably connected, the rotating units are in a regular hexagonal frame shape, and vertexes of the rotating units at two ends of the supporting net rack are connecting points;
the aortic support comprises at least two groups of aortic supports, each group of six connecting points is a group, two ends of each supporting strip are respectively connected with two connecting points which are farthest away, the four auxiliary strips are correspondingly connected with the four connecting points which are positioned in the middle in a one-to-one manner, one ends of the auxiliary strips departing from the connecting points are connected with the supporting strips, and one ends of the four auxiliary strips departing from the connecting points are connected with one point of the supporting strips;
the fixing piece is arranged on the supporting strip and is positioned at the connecting part of the supporting strip and the auxiliary strip; and
the outflow support, the outflow support with the support rack is connected, just the outflow support is located the support rack deviates from the one end of aortic support.
The connecting line between the rotating units in the pulmonary artery stent convenient to control is longer, the two adjacent rotating units rotate along the connecting line, the rotating direction is stable and reliable during rotation, and the occurrence of accidents in the installation process can be effectively avoided.
Aortic stent will support all tie points of the one end of rack and connect the cover, and the outflow support then will support all tie points of the other end of rack and connect the cover, isolated sharp-pointed point is avoided appearing, thereby avoid appearing in the condition of installation pulmonary artery support's in-process damage sheath pipe, furthermore, cooperation between support bar and the auxiliary strip, can let more firm of every group arterial stent, four auxiliary strips connect in a little, can be convenient for install the mounting, and simultaneously, the structure that does not guarantee aortic stent yet is succinct, be convenient for remove in the vascular wall.
In some embodiments of this embodiment: pulmonary artery support convenient to control still includes the control lever, the one end of control lever install in support the rack orientation the one end of aortic arch support, the other end of control lever with support the rack orientation the cooperation can be dismantled to the one end of outflow support.
When installing, the one end of control lever orientation outflow support loosens with supporting the rack, and the support rack can carry out arbitrary shrink so that install pulmonary artery support this moment, accomplishes the back when pulmonary artery support mounting, can be connected the one end of control lever orientation outflow support with supporting the rack, and the shape and the size of supporting the rack this moment are fixed, can't stretch out and draw back.
In some embodiments of this embodiment: one end of the support net rack, which faces the outflow support, is provided with a positioning block, and the control rod is provided with a positioning hole matched with the positioning block.
The cooperation simple structure of locating piece and locating piece, convenient operation sets up the locating piece on supporting the rack, and the locating piece is towards supporting the inside convex of rack, can avoid pulmonary artery support to cause the injury to human tissue when removing in the blood vessel.
In some embodiments of this embodiment: every is located support the tip of rack the rotation unit has one the tie point, the rotation unit is followed support the upwards four angles of circumference of rack and be provided with the chamfer.
When the rotation connection connects gradually, the rotation unit on different circles staggers the setting, so adjacent two rotation unit between on the upper side or position on the lower side have other rotation unit, the setting of chamfer can avoid appearing the condition of three rotation unit interconnect to guarantee every rotation unit's flexibility.
In some embodiments of this embodiment: and a transition gap is formed between the two rotation units along the circumferential direction of the support net rack, and the sharp angle of each rotation unit is positioned in the transition gap.
The sharp corner of the sharp-pointed rotating element can be located exactly in the transition gap.
In some embodiments of this embodiment: the fixing piece is installed on each aortic stent, the length of the fixing piece on each aortic stent is different, and the control rod corresponds to the position of the shortest fixing piece.
When the pulmonary artery stent is installed, a plurality of fixing pieces can be sequentially arranged in place, wherein the fixing piece with the largest length is arranged in place firstly, and the fixing piece with the smallest length is arranged in place finally, so that the installation is more convenient and quicker.
In some embodiments of this embodiment: the aortic stents are arranged in four groups.
When setting up four groups aorta support, can set up four mountings, fix the pulmonary artery support that this moment can be fine, and install more fast this moment.
In some embodiments of this embodiment: the outflow support comprises a plurality of outflow units, each outflow unit is of a rhombic frame structure, the outflow units are connected to the connecting points, and two sides of each outflow unit are respectively overlapped with two adjacent sides of the rotating unit.
The diamond-shaped outflow cells may be expanded in a direction away from the support grid to form flares.
Based on the above purpose, the invention also discloses a pulmonary valve replacement device, which comprises the pulmonary artery stent convenient to control and the valve structure fixed in the support net rack.
When the support in the pulmonary valve replacing device disclosed by the invention is stretched, the rotating direction of the rotating unit is more stable, so that accidents can be reduced, and meanwhile, the rotating direction is stable, so that the support can be rapidly stretched to a specified shape, and the operation time is reduced.
In some embodiments of this embodiment: the valve structure is provided with a sliding groove, and the control rod is clamped in the sliding groove.
The cooperation of spout and control lever can let valve structure be installed fast on pulmonary artery support, and utilizes the mutual restriction between control lever and the spout, can avoid valve structure skew to appear and become flexible. In order to further improve the limiting force of the control rod on the valve structure, the sliding groove can be set to be a dovetail groove or a T-shaped groove, and of course, the shape of the control rod facing the valve structure needs to correspond to the shape of the sliding groove.
Compared with the prior art, the invention has the following beneficial effects:
the connecting line between the rotating units in the pulmonary artery stent convenient to control is longer, the two adjacent rotating units rotate along the connecting line, the rotating direction is stable and reliable during rotation, and the occurrence of accidents in the installation process can be effectively avoided.
Aortic stent will support all tie points of the one end of rack and connect the cover, and the outflow support then will support all tie points of the other end of rack and connect the cover, isolated sharp-pointed point is avoided appearing, thereby avoid appearing in the condition of installation pulmonary artery support's in-process damage sheath pipe, furthermore, cooperation between support bar and the auxiliary strip, can let more firm of every group arterial stent, four auxiliary strips connect in a little, can be convenient for install the mounting, and simultaneously, the structure that does not guarantee aortic stent yet is succinct, be convenient for remove in the vascular wall.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 shows a deployment view of a pulmonary artery stent partially facilitating control as disclosed in embodiment 1 of the present invention;
FIG. 2 is a schematic view showing the connection of the aortic stent and the supporting net rack disclosed in example 1 of the present invention;
fig. 3 is a schematic view of a supporting net frame disclosed in embodiment 1 of the present invention;
fig. 4 shows a schematic view of a turning unit disclosed in embodiment 1 of the present invention;
figure 5 shows a schematic view of an outflow stent as disclosed in example 1 of the present invention.
In the figure:
100-supporting a net rack; 110-a rotation unit; 111-attachment point; 112-chamfering; 120-a transition gap; 200-aortic stent; 210-a support strip; 220-an auxiliary bar; 300-a fixture; 400-flow out of the stent.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as disclosed in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 to 5, an embodiment of the present invention discloses a pulmonary artery stent convenient to control, which includes a tubular supporting net frame 100, a fixing member 300, an outflow stent 400, and at least two groups of aortic stents 200.
The supporting net rack 100 is composed of continuous rotating units 110, the adjacent rotating units 110 are connected in a rotating way, the rotating units 110 are in a regular hexagon frame shape, and the vertexes of the rotating units 110 at the two ends of the supporting net rack 100 are connecting points 111; the aortic stent 200 comprises a support bar 210 and four auxiliary bars 220, wherein each six connecting points 111 form a group, two ends of the support bar 210 are respectively connected with two connecting points 111 which are farthest away, the four auxiliary bars 220 are correspondingly connected with the four connecting points 111 positioned in the middle one by one, one ends of the auxiliary bars 220 departing from the connecting points 111 are connected with the support bar 210, and one ends of the four auxiliary bars 220 departing from the connecting points 111 are connected with one point of the support bar 210; the fixing member 300 is installed on the supporting bar 210, and the fixing member 300 is located at the connection position of the supporting bar 210 and the auxiliary bar 220; an outflow stent 400 is attached to the support frame 100 and the outflow stent 400 is located at the end of the support frame 100 that faces away from the aortic stent 200.
The connecting wire between the rotation unit 110 in the pulmonary artery support convenient to control that this embodiment is disclosed is longer, two adjacent rotation units 110 rotate along its connecting wire, when rotating, its direction of rotation is reliable and stable, can effectively avoid reducing the unexpected condition of appearance in the installation, and simultaneously, this kind of pulmonary artery support convenient to control is because the uniqueness of the direction of rotation unit 110, consequently can adjust support rack 100 fast, let support rack 100 can be more quick by adjustment to appointed shape, if let support rack 100 open the shape to the installation of being convenient for fast, or let support rack 100 be fast by the shrink to the shape of being convenient for fixed, thereby reduce the time that the operation needs.
Aortic stent 200 will support all tie points 111 connection covers of rack 100's one end, and outflow support 400 then will support all tie points 111 connection covers of the other end of rack 100, isolated sharp point is avoided appearing, thereby avoid appearing in the condition of installation pulmonary artery support's in-process damage sheath pipe, in addition, cooperation between support bar 210 and the auxiliary strip 220, can let more firm of every group arterial stent, four auxiliary strips 220 connect in one point, can be convenient for install mounting 300, simultaneously, the structure that does not guarantee aortic stent 200 yet is succinct, be convenient for remove in the vascular wall.
In some embodiments of this embodiment, the pulmonary artery stent for easy control further comprises a control rod, one end of the control rod is installed at the end of the support net rack 100 facing the aortic stent 200, and the other end of the control rod is detachably engaged with the end of the support net rack 100 facing the outflow stent 400. When installing, the one end of control lever orientation outflow support 400 is loosened with support rack 100, and support rack 100 can carry out arbitrary shrink so that install pulmonary artery support this moment, accomplishes the back when pulmonary artery support mounting, can be connected the one end of control lever orientation outflow support 400 with support rack 100, and the shape and the size of support rack 100 are fixed this moment, can't stretch out and draw back.
In some embodiments of this embodiment, the support frame 100 is provided with a positioning block at one end facing the outflow housing 400, and the control rod is provided with a positioning hole for cooperating with the positioning block. The cooperation simple structure of locating piece and locating piece, convenient operation sets up the locating piece on supporting rack 100, and the locating piece is towards supporting rack 100 inside convex, can avoid pulmonary artery support to cause the injury to human tissue when removing in the blood vessel.
In some embodiments of the present embodiment, each of the rotation units 110 at the end of the support rack 100 has one connection point 111, and the rotation units 110 are provided with chamfers 112 along four corners in the circumferential direction of the support rack 100. When the rotary connection is sequentially connected, the rotary units 110 on different rings are arranged in a staggered manner, so that another rotary unit 110 is arranged at an upper position or a lower position between two adjacent rotary units 110, and the arrangement of the chamfer 112 can avoid the situation that the three rotary units 110 are connected with each other, thereby ensuring the flexibility of each rotary unit 110.
In some embodiments of the present embodiment, a transition gap 120 is formed between two rotation units 110 in the circumferential direction of the support frame 100, and the sharp corners of the rotation units 110 are located in the transition gap 120. The sharp tip of the turning element may be located exactly in the transition gap 120.
In some embodiments of the present embodiment, one fixture 300 is mounted on each aortic stent 200, and the length of the fixture 300 on each aortic stent 200 is different, and the control rod corresponds to the position of the shortest fixture 300. When the pulmonary artery stent is installed, a plurality of fixing pieces 300 can be sequentially arranged in place, wherein the fixing piece 300 with the largest length is arranged in place firstly, and the fixing piece 300 with the smallest length is arranged in place finally, so that the installation is more convenient and quicker.
In some embodiments of the present embodiment, the aortic stents 200 are provided in four sets. When four sets of aortic stents 200 are provided, four fixation members 300 may be provided, which may already be good at fixing the pulmonary stent and which is faster to install.
In some embodiments of the present embodiment, the outflow bracket 400 includes a plurality of outflow units, each of the outflow units has a diamond-shaped frame structure, adjacent outflow units are connected to the connection point 111, and two sides of each of the outflow units coincide with two sides of the adjacent rotation unit 110. The diamond-shaped outflow cells may be flared in a direction away from the support screen 100.
The embodiment of the invention also discloses a pulmonary valve replacement device, which comprises the pulmonary artery stent convenient to control and a valve structure fixed in the supporting net rack 100.
When the stent in the pulmonary valve replacement device disclosed by the invention is stretched, the rotation direction of the rotation unit 110 is more stable, so that accidents can be reduced, and meanwhile, the rotation direction is stable, so that the stent can be rapidly stretched to a specified shape, and the operation time is reduced.
In some embodiments of this embodiment, the valve structure is provided with a sliding slot, and the control rod is snapped into the sliding slot.
The cooperation of spout and control lever can let valve structure be installed fast on pulmonary artery support, and utilizes the mutual restriction between control lever and the spout, can avoid valve structure skew to appear and become flexible. In order to further improve the limiting force of the control rod on the valve structure, the sliding groove can be set to be a dovetail groove or a T-shaped groove, and of course, the shape of the control rod facing the valve structure needs to correspond to the shape of the sliding groove.
The control rods can be arranged to be a plurality of, the control rods are arranged along the circumferential interval of the support net rack 100, correspondingly, the sliding grooves in the valve structure are also arranged to be a plurality of, and the sliding grooves and the control rods are arranged in a one-to-one correspondence mode.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A pulmonary artery stent for easy control, comprising:
the supporting net rack is tubular and consists of continuous rotating units, the adjacent rotating units are rotatably connected, the rotating units are in a regular hexagonal frame shape, and vertexes of the rotating units at two ends of the supporting net rack are connecting points;
the aortic support comprises at least two groups of aortic supports, each group of six connecting points is a group, two ends of each supporting strip are respectively connected with two connecting points which are farthest away, the four auxiliary strips are correspondingly connected with the four connecting points which are positioned in the middle in a one-to-one manner, one ends of the auxiliary strips departing from the connecting points are connected with the supporting strips, and one ends of the four auxiliary strips departing from the connecting points are connected with one point of the supporting strips;
the fixing piece is arranged on the supporting strip and is positioned at the connecting part of the supporting strip and the auxiliary strip; and
the outflow support, the outflow support with the support rack is connected, just the outflow support is located the support rack deviates from the one end of aortic support.
2. The pulmonary artery stent convenient to control of claim 1, further comprising a control rod, wherein one end of the control rod is installed at one end of the support net rack facing the aortic stent, and the other end of the control rod is detachably matched with one end of the support net rack facing the outflow stent.
3. The pulmonary artery stent convenient to control as claimed in claim 2, wherein a positioning block is arranged on one end of the support net frame facing the outflow stent, and a positioning hole for matching with the positioning block is arranged on the control rod.
4. The pulmonary artery stent convenient to control as claimed in claim 2, wherein each of the rotation units at the end of the support net rack has one of the connection points, and the rotation units are provided with chamfers along four corners in the circumferential direction of the support net rack.
5. The pulmonary artery stent convenient to control of claim 4, wherein a transition gap is formed between two of the rotation units in the circumferential direction of the support net frame, and the sharp corners of the rotation units are located in the transition gap.
6. The pulmonary artery stent convenient to control of claim 2, wherein one of the fixing members is installed on each aortic stent, the length of the fixing member on each aortic stent is different, and the control rod corresponds to the position of the shortest fixing member.
7. The pulmonary artery stent convenient to control of claim 2, wherein the aortic stent is provided in four groups.
8. The pulmonary artery stent convenient to control as claimed in claim 2, wherein the outflow stent comprises a plurality of outflow units, the outflow units are of diamond frame structures, adjacent outflow units are connected to the connection points, and two sides of the outflow units are respectively overlapped with two sides of adjacent rotation units.
9. A pulmonary valve replacement device comprising a pulmonary artery stent for facilitating control as claimed in any one of claims 2 to 8 and a valve structure secured within the support frame.
10. The pulmonary valve replacement device of claim 9, wherein the valve structure is provided with a sliding slot, and the control rod is snapped into the sliding slot.
CN202010827976.1A 2020-08-17 2020-08-17 Pulmonary artery support and pulmonary valve replacement device convenient to control Active CN111772882B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010827976.1A CN111772882B (en) 2020-08-17 2020-08-17 Pulmonary artery support and pulmonary valve replacement device convenient to control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010827976.1A CN111772882B (en) 2020-08-17 2020-08-17 Pulmonary artery support and pulmonary valve replacement device convenient to control

Publications (2)

Publication Number Publication Date
CN111772882A true CN111772882A (en) 2020-10-16
CN111772882B CN111772882B (en) 2021-07-13

Family

ID=72762197

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010827976.1A Active CN111772882B (en) 2020-08-17 2020-08-17 Pulmonary artery support and pulmonary valve replacement device convenient to control

Country Status (1)

Country Link
CN (1) CN111772882B (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2633330Y (en) * 2003-06-27 2004-08-18 胡晓旻 Medical pulmonary artery constrictive rack
US20050075720A1 (en) * 2003-10-06 2005-04-07 Nguyen Tuoc Tan Minimally invasive valve replacement system
CN101961273A (en) * 2010-04-19 2011-02-02 杭州启明医疗器械有限公司 Valvular prosthetic replacement device with buffer action and stent
EP2982336A1 (en) * 2014-08-04 2016-02-10 Alvimedica Tibb Ürünler San. Ve Dis Tic. A.S. Mitral valve prosthesis, particularly suitable for transcatheter implantation
CN106618798A (en) * 2016-10-24 2017-05-10 宁波健世生物科技有限公司 Heart valve prosthesis fixed through interventricular septum and conveying and releasing method thereof
CN107252363A (en) * 2015-03-26 2017-10-17 杭州启明医疗器械有限公司 Reduce the valve bracket of reduction length and the valve replacement device with the valve bracket
CN107735050A (en) * 2015-05-25 2018-02-23 杭州启明医疗器械有限公司 Through conduit cage shape pulmonary valve membrane module
US10052202B2 (en) * 2015-05-25 2018-08-21 Venus Medtech (Hangzhou) Inc Transcatheter pulmonary ball valve assembly
CN108784896A (en) * 2017-10-31 2018-11-13 杭州诺生医疗科技有限公司 Atrial septum ostomy appliance, atrial septum stoma system and its operating method
CN109549754A (en) * 2017-09-25 2019-04-02 先健科技(深圳)有限公司 Heart valve
US20200138573A1 (en) * 2018-11-01 2020-05-07 Edwards Lifesciences Corporation Transcatheter pulmonic regenerative valve
CN210541935U (en) * 2019-04-08 2020-05-19 北京佰仁医疗科技股份有限公司 Support for intervening valve in valve
CN210541936U (en) * 2019-04-08 2020-05-19 北京佰仁医疗科技股份有限公司 Connecting structure of stent and valve leaflet, and interventional pulmonary valve and interventional aortic valve applying connecting structure

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2633330Y (en) * 2003-06-27 2004-08-18 胡晓旻 Medical pulmonary artery constrictive rack
US20050075720A1 (en) * 2003-10-06 2005-04-07 Nguyen Tuoc Tan Minimally invasive valve replacement system
CN101961273A (en) * 2010-04-19 2011-02-02 杭州启明医疗器械有限公司 Valvular prosthetic replacement device with buffer action and stent
EP2982336A1 (en) * 2014-08-04 2016-02-10 Alvimedica Tibb Ürünler San. Ve Dis Tic. A.S. Mitral valve prosthesis, particularly suitable for transcatheter implantation
CN107252363A (en) * 2015-03-26 2017-10-17 杭州启明医疗器械有限公司 Reduce the valve bracket of reduction length and the valve replacement device with the valve bracket
CN107735050A (en) * 2015-05-25 2018-02-23 杭州启明医疗器械有限公司 Through conduit cage shape pulmonary valve membrane module
US10052202B2 (en) * 2015-05-25 2018-08-21 Venus Medtech (Hangzhou) Inc Transcatheter pulmonary ball valve assembly
CN106618798A (en) * 2016-10-24 2017-05-10 宁波健世生物科技有限公司 Heart valve prosthesis fixed through interventricular septum and conveying and releasing method thereof
CN109549754A (en) * 2017-09-25 2019-04-02 先健科技(深圳)有限公司 Heart valve
CN108784896A (en) * 2017-10-31 2018-11-13 杭州诺生医疗科技有限公司 Atrial septum ostomy appliance, atrial septum stoma system and its operating method
US20200138573A1 (en) * 2018-11-01 2020-05-07 Edwards Lifesciences Corporation Transcatheter pulmonic regenerative valve
CN210541935U (en) * 2019-04-08 2020-05-19 北京佰仁医疗科技股份有限公司 Support for intervening valve in valve
CN210541936U (en) * 2019-04-08 2020-05-19 北京佰仁医疗科技股份有限公司 Connecting structure of stent and valve leaflet, and interventional pulmonary valve and interventional aortic valve applying connecting structure

Also Published As

Publication number Publication date
CN111772882B (en) 2021-07-13

Similar Documents

Publication Publication Date Title
CN104720937B (en) Reduce the valve bracket of reduction length and the valve replacement device with the valve bracket
US10695163B2 (en) Stent-graft
WO2016149998A1 (en) Use of safe valve scaffold and valve replacement device with valve scaffold
US8257424B2 (en) Radially expandable vascular stent
US7070614B1 (en) Radially expandable vessel support
US8034097B2 (en) Radially expandable vessel support
CN1287478A (en) Stent having non-uniform structure
CN105342725B (en) Artificial biological heart valve support and artificial biological heart valve
CN204581598U (en) Reduce the valve bracket of reduction length and there is the valve replacement device of this support
WO1999012494A9 (en) Compliant intraluminal stents
CN109419566B (en) Covered stent
US20230240832A1 (en) Stent graft with variable coverage of wavy rings
CN218356470U (en) Lightweight heart valve stent
US7323007B2 (en) Soft stent with excellent follow-up capability to blood vessel
CN111772882B (en) Pulmonary artery support and pulmonary valve replacement device convenient to control
JP2002177400A (en) Low profile radio-opaque stent with increased longitudinal flexibility and radial rigidity
CN212415990U (en) Support and heart valve prosthesis
CN205494080U (en) Filter
CN2430175Y (en) Medical tubular rack
WO2019096159A1 (en) Peripheral endovascular stent
CN109549760A (en) A kind of valve bracket reducing reduction length
CN109199635A (en) A kind of overlay film frame
CN219332104U (en) Anti-reflux stent and prosthetic valve device convenient to position
CN218045473U (en) Bare stent and vascular stent comprising same
CN219332106U (en) Anti-regurgitation stent and prosthetic valve device suitable for annuloplasty

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant