CN215503584U - Heart valve support and conveying device - Google Patents
Heart valve support and conveying device Download PDFInfo
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- CN215503584U CN215503584U CN202121838629.5U CN202121838629U CN215503584U CN 215503584 U CN215503584 U CN 215503584U CN 202121838629 U CN202121838629 U CN 202121838629U CN 215503584 U CN215503584 U CN 215503584U
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- heart valve
- inner tube
- valve stent
- balloon
- limiting ring
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Abstract
The utility model discloses a heart valve stent and a conveying device, wherein the heart valve stent comprises an annular valve frame, a limiting ring and a connecting piece, the limiting ring is positioned at the outer side of the annular valve frame, and the annular valve frame and the limiting ring are fixed through the connecting piece; the heart valve stent conveying device comprises a balloon, an outer tube, an inner tube, a shell and a movable handle, wherein the outer tube is sleeved on the surface of the inner tube, and the balloon is positioned at one end of the inner tube and is connected with the inner tube; the shell is of a hollow structure, the balloon is positioned at the inner side of the hollow structure of the shell, and the shell is fixedly connected with the outer pipe; the movable handle is positioned at the other end of the inner tube and is connected with the inner tube and the outer tube. The utility model enhances the overall stability by arranging the limiting ring on the surface of the annular valve frame, and provides the heart valve stent conveying device which conveys the annular valve frame to the target position of the heart and fixes the annular valve frame through the expansion of the saccule, so that the heart valve stent is fixed at a more stable position.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a heart valve stent and a conveying device.
Background
With the development of society and the improvement of the average life span of human beings, the cases of valvular heart diseases are also increasing year by year. Heart valve disease currently achieves proper functioning of the heart valve primarily by replacement of the diseased heart valve site with a prosthetic heart valve. However, in the prior art, the heart valve stent may be in a lower position after being implanted, which may result in poor stability of the heart valve stent and the occurrence of slipping into the ventricle.
It can be seen that the related art has a problem of poor stability of the heart valve stent.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a heart valve stent and a conveying device, which aim to solve the problem of poor stability of the heart valve stent in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a heart valve stent, including an annular valve stent, a limiting ring and a connecting member, wherein:
the spacing ring is located the outside of annular lamella frame, the connecting piece is located the spacing ring with between the annular lamella frame, the spacing ring with the lamella frame passes through the connecting piece is connected fixedly.
As an optional implementation manner, the annular flap frame is a net structure, the connecting member is an L-shaped structure, the annular flap frame is connected to a first side of the L-shaped structure, the limiting ring is connected to a second side of the L-shaped structure, and the first side and the second side of the L-shaped structure are perpendicular to each other.
As an optional implementation mode, the limiting ring is of a wave-shaped structure, and the wave-shaped number and the wave-shaped height of the limiting ring are matched with the size of the annular valve frame; the wave structure of the limiting ring does not exceed the edge of the valve frame.
As an alternative embodiment, the stop collar and the connector are of a shape memory material.
The embodiment of the utility model also provides a heart valve stent conveying device, which is used for conveying the heart valve stent, and comprises a balloon, an inner tube, an outer tube, a moving handle and a shell, wherein:
the outer pipe is movably sleeved on the surface of the inner pipe;
the balloon is positioned at one end of the inner tube, and the balloon is fixedly connected with the inner tube;
the shell is of a hollow structure, the balloon is positioned inside the hollow structure of the shell, and the shell is fixedly connected with the outer pipe;
the movable handle is located at one end, far away from the balloon, of the inner tube, the movable handle is connected with the inner tube, and the movable handle is further connected with the outer tube.
As an alternative embodiment, the moving handle comprises a knob and a handle, wherein,
the knob and the handle are movably connected;
one end of the outer tube is connected with the knob, and one end of the inner tube is connected with the handle.
As an optional implementation manner, the trial delivery device further comprises a stamping device, one end of the inner tube passes through the moving handle and is connected with the stamping device, and the other end of the inner tube is communicated with the balloon;
the punching device is used for injecting and extracting liquid in the balloon.
As an alternative embodiment, the inner tube and the outer tube are of deformable material.
As an alternative embodiment, a tip is provided at an end of the inner tube away from the moving handle, the tip is fixedly connected with the inner tube, and the size of the tip is matched with the size of the housing.
As an alternative embodiment, the heart valve stent comprises an annular valve stent, a limiting ring and a connecting piece, wherein:
the limiting ring is positioned on the outer side of the annular valve frame, the connecting piece is positioned between the limiting ring and the annular valve frame, and the limiting ring and the valve frame are fixedly connected through the connecting piece;
under the condition that the heart valve stent is conveyed by the heart valve stent conveying device, the annular valve frame is sleeved on the surface of the balloon, and the limiting ring is abutted against the inner side of the shell.
In the embodiment of the utility model, the overall stability is increased by arranging the limiting ring on the annular valve frame, the heart valve frame is conveyed to a target position by the heart valve frame conveying device matched with the annular valve frame conveying device, and the heart valve frame is fixed by expanding the saccule, so that the heart valve frame is fixed at a more stable position.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a heart valve stent according to an embodiment of the present invention;
FIG. 2 is a front view of a heart valve stent according to an embodiment of the present invention;
FIG. 3 is a schematic view of a heart valve stent provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a connector according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a heart valve stent delivery device according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of the deployment of the stop collar provided by an embodiment of the present invention;
FIG. 7 is a schematic view of a heart valve stent delivery device provided by an embodiment of the present invention for delivering a heart valve stent;
FIG. 8 is a schematic structural view of another delivery device for heart valve stents according to an embodiment of the present invention;
FIG. 9 is a schematic view of balloon inflation upon release of a heart valve stent provided in accordance with an embodiment of the present invention;
FIG. 10 is a schematic view of balloon deflation after release of a heart valve stent provided in accordance with an embodiment of the present invention;
FIG. 11 is a schematic view of balloon inflation upon release of another heart valve stent provided in accordance with an embodiment of the present invention;
FIG. 12 is a schematic view of balloon deflation after release of another heart valve stent provided in accordance with an embodiment of the present invention;
fig. 13 is a partial schematic view of a heart valve stent delivery device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present 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.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more.
As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a heart valve stent, which includes an annular valve stent 11, a limiting ring 12 and a connecting piece 13, wherein:
the spacing ring 12 is located the outside of annular lamella frame 11, and connecting piece 13 is located between spacing ring 12 and annular lamella frame 11, and spacing ring 12 is connected fixedly through connecting piece 13 with the lamella frame.
In this embodiment, the limiting ring 12 is sleeved on the surface of the annular valve frame 11, so that the cross-sectional area for fixing the heart valve stent is increased, and the heart valve stent can be more stable when being fixed. And because the whole body needs to be compressed before the heart valve support is released, the limit ring 12 and the annular valve support 11 need to be connected through the connecting piece 13, the connecting piece 13 can deform to withdraw the limit ring 12 during compression, and the limit ring 12 is bounced and fixed through the connecting piece 13 during release.
Specifically, in the process of releasing the heart valve stent, the annular valve frame 11 is expanded, the limiting ring 12 is firstly abutted against the inner wall of the blood vessel, and the annular valve frame 11 is then abutted against the inner wall of the blood vessel. Increase spacing ring 12 and increase overall structure's stability on the fixed basis of 11 butt of annular valve frame, reduced the risk of heart valve support entad indoor landing, also can effectively prevent that native leaflet from interfering the risk of coronary artery mouth.
As an alternative embodiment, as shown in fig. 3 and 4, the annular flap frame 11 is a net structure, the connecting member 13 is an L-shaped structure, the annular flap frame 11 is connected with a first side of the L-shaped structure, the spacing ring 12 is connected with a second side of the L-shaped structure, and the first side and the second side of the L-shaped structure are perpendicular.
In this embodiment, the heart valve stent needs to be compressed and delivered to the target treatment site. The annular valve frame 11 is formed into a mesh structure, so that the whole body can be compressed and can be released to return to an annular shape after being compressed. Meanwhile, the connecting piece 13 with an L-shaped structure can vertically connect the limiting ring 12 and the annular valve frame 11, and can maintain the shape of the limiting ring 12 when the heart valve frame is fixed, so that the limiting ring is stably fixed at a target treatment position.
Specifically, as shown in fig. 4, the first side and the second side of the L-shaped structure of the connecting member 13 are perpendicular, and the second side can be compressed along the first side when the heart valve stent needs to be compressed, so that the retainer ring 12 can change directions and be compressed; when the heart valve stent needs to be released, the first edge and the second edge can be restored to be vertical, so that the limiting ring 12 can be vertically sleeved on the surface of the annular valve frame 11.
As an optional embodiment, the stop collar 12 is a wave structure, and the wave number and the wave height of the stop collar 12 are adapted to the size of the annular valve frame 11; the wave-shaped structure of the limiting ring 12 does not exceed the edge of the valve frame.
In this embodiment, the stop ring 12 is set to have a wave-shaped structure, so that the heart valve stent is more stable in the blood flowing direction, and the wave-shaped structure is more convenient to be compressed and extended, thereby meeting the requirements of the compression and release processes of the heart valve stent. Wherein, according to the annular valve frame 11 size of difference, spacing ring 12 can be designed into 3 ~ 18 wave forms, and the difference in height design of crest and trough is in 3 ~ 10 mm.
As an alternative embodiment, the stop collar 12 and the attachment member 13 are of a material with shape memory properties.
In the embodiment, since the heart valve stent needs to be compressed and delivered and keeps an expanded state after being released, the limiting ring 12 and the connecting piece 13 are made of materials with shape memory property, so that the requirements of compression and release can be met. Wherein, the shape memory material can be nickel-titanium alloy material.
As shown in fig. 5, the present invention further provides a heart valve stent delivery device for delivering a heart valve stent, the heart valve stent delivery device comprising a balloon 21, an inner tube 22, an outer tube 23, a moving handle 24 and a housing 25, wherein:
the outer tube 23 is movably sleeved on the surface of the inner tube 22;
the balloon 21 is positioned at one end of the inner tube 22, and the balloon 21 and the inner tube 22 are fixedly connected;
the shell 25 is a hollow structure, the balloon 21 is positioned inside the hollow structure of the shell 25, and the shell 25 is fixedly connected with the outer tube 23;
a moving handle 24 is located at an end of the inner tube 22 remote from the balloon 21, the moving handle 24 being connected to the inner tube 22, and the moving handle 24 also being connected to the outer tube 23.
In the present embodiment, in order to deliver the heart valve stent, a heart valve delivery device is provided, which can compress the heart valve stent and deliver the heart valve stent to a target treatment position for release, wherein the housing 25 can compress the heart valve stent and the balloon 21 can release the heart valve stent.
Specifically, when the operator uses the heart valve stent delivery device, the balloon 21 moves out of the housing 25 and releases the heart valve stent to the target treatment position by controlling the moving handle 24, the outer tube 23 and the inner tube 22 to move relatively, and then the balloon 21 is retracted into the housing 25 and the heart valve stent delivery device is removed.
As an alternative embodiment, the moving handle 24 includes a knob 241 and a handle 242, wherein,
one end of the outer tube 23 is connected to a knob 241 and one end of the inner tube 22 is connected to a handle 242.
In this embodiment, the knob 241 and the handle 242 control the relative movement of the inner tube 22 and the outer tube 23 to move the balloon 21 out of the housing 25 in preparation for releasing the heart valve stent.
Specifically, as shown in fig. 6 and 7, the operator operates the knob 241 and the handle 242 to control the relative movement of the inner tube 22 and the outer tube 23, after the cardiac valve stent delivery device is moved to the target treatment position, the handle 242 controls the outer tube to retreat, the balloon 21 in the housing 25 is exposed, and the balloon 21 releases the cardiac valve stent; after the release is completed, the balloon 21 is deflated and the operator then transfers the heart valve stent delivery device out of the body.
As an alternative embodiment, as shown in fig. 8, the heart valve stent delivery device further includes a punch 26, one end of the inner tube 22 passes through the moving handle 24 and is connected with the punch 26, and the other end of the inner tube 22 is communicated with the balloon 21;
the ram 26 is used to inject and withdraw fluid from the balloon 21.
In the present embodiment, the liquid is injected into the balloon 21 and extracted from the balloon 21 by the punching device 26 to expand and contract the balloon 21, thereby realizing the release process of the heart valve stent.
Specifically, as shown in fig. 9 and 10, when the heart valve stent delivery device reaches the target treatment position, the shell 25 moves the balloon 21 backward to be exposed, and at this time, the liquid is injected into the balloon 21 through the punching device 26, and the balloon 21 is inflated to fix the heart valve stent. After the fixation is completed, the liquid in the balloon 21 is extracted, the balloon 21 and the heart valve stent are classified, and the heart valve stent delivery device is removed from the body.
As shown in fig. 11 and 12, when the housing 25 is retracted during the process of releasing the cardiac valve stent, the cardiac valve stent is exposed, and the compressed retainer ring 12 is restored to the state before being compressed, at this time, the retaining effect of the retainer ring 12 can be utilized to improve the stability of the valve implantation, and especially for patients with severe calcification, the retainer ring 12 can be anchored on the calcified valve leaflets first, which can increase the stability of the cardiac valve stent during the release process.
The liquid injected into the balloon 21 is usually a mixed solution of physiological saline and contrast agent, so that the operator can conveniently determine the accurate position of the heart valve support.
As an alternative embodiment, the inner tube 22 and the outer tube 23 are of deformable material.
In this embodiment, the delivery device needs to move along the blood vessel during the delivery process, and the inner tube 22 and the outer tube 23 are designed to be deformable materials, so that the delivery device can deform along the blood vessel during the delivery process, and the blood vessel is prevented from being scratched by the delivery device.
As an alternative embodiment, as shown in fig. 13, the end of the inner tube 22 far from the moving handle 24 is provided with a tip 27, the tip 27 is fixedly connected with the inner tube 22, and the size of the tip 27 is matched with the size of the shell 25.
In this embodiment, the tip 27 can first touch the blood vessel and deflect along the blood vessel during delivery of the delivery device, allowing the delivery device to move along the blood vessel to the target treatment location.
As an alternative embodiment, the heart valve stent comprises an annular valve stent 11, a stop ring 12 and a connecting piece 13, wherein:
the limiting ring 12 is positioned on the outer side of the annular valve frame 11, the connecting piece 13 is positioned between the limiting ring 12 and the annular valve frame 11, and the limiting ring 12 and the valve frame are fixedly connected through the connecting piece 13;
under the condition that the heart valve stent is conveyed by the heart valve stent conveying device, the annular valve frame 11 is sleeved on the surface of the balloon 21, and the limiting ring 12 is abutted against the inner side of the shell 25.
In this embodiment, when the heart valve stent needs to be compressed and transported, the annular valve frame 11 is sleeved on the balloon 21 and compressed, and the limiting ring 12 is compressed and then abuts against the housing 25, so that the heart valve stent can be stably fixed in the housing 25 in a compressed state.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. A heart valve support, which is characterized by comprising an annular valve support, a limiting ring and a connecting piece, wherein:
the spacing ring is located the outside of annular lamella frame, the connecting piece is located the spacing ring with between the annular lamella frame, the spacing ring with the lamella frame passes through the connecting piece is connected fixedly.
2. The heart valve stent of claim 1, wherein the annular valve frame is a mesh structure, the connecting member is an L-shaped structure, the annular valve frame is connected with a first side of the L-shaped structure, the limiting ring is connected with a second side of the L-shaped structure, and the first side and the second side of the L-shaped structure are perpendicular.
3. The heart valve stent of claim 1, wherein the limiting ring is of a wave-shaped structure, and the wave-shaped number and the wave-shaped height of the limiting ring are matched with the size of the annular valve frame; the wave structure of the limiting ring does not exceed the edge of the valve frame.
4. The heart valve stent of claim 1, wherein the stop collar and the connector are of a material having shape memory properties.
5. A heart valve stent delivery device for delivering a heart valve stent, the delivery device comprising a balloon, an inner tube, an outer tube, a travel handle, and a housing, wherein:
the outer pipe is movably sleeved on the surface of the inner pipe;
the balloon is positioned at one end of the inner tube, and the balloon is fixedly connected with the inner tube;
the shell is of a hollow structure, the balloon is positioned inside the hollow structure of the shell, and the shell is fixedly connected with the outer pipe;
the movable handle is located at one end, far away from the balloon, of the inner tube, the movable handle is connected with the inner tube, and the movable handle is further connected with the outer tube.
6. The heart valve stent delivery device of claim 5, wherein the translation handle comprises a knob and a handle, wherein,
the knob and the handle are movably connected;
one end of the outer tube is connected with the knob, and one end of the inner tube is connected with the handle.
7. The heart valve stent delivery device of claim 5, further comprising a punch, one end of the inner tube passing through the travel handle and connected to the punch, the other end of the inner tube communicating with the balloon;
the punching device is used for injecting and extracting liquid in the balloon.
8. The heart valve stent delivery device of claim 5, wherein the inner tube and the outer tube are of a deformable material.
9. The heart valve stent delivery device of claim 5, wherein the end of the inner tube remote from the moving handle is provided with a tip, the tip is fixedly connected with the inner tube, and the size of the tip is matched with that of the shell.
10. The heart valve stent delivery device of claim 5, wherein the heart valve stent comprises an annular valve frame, a stop ring, and a connector, wherein:
the limiting ring is positioned on the outer side of the annular valve frame, the connecting piece is positioned between the limiting ring and the annular valve frame, and the limiting ring and the valve frame are fixedly connected through the connecting piece;
under the condition that the heart valve stent is conveyed by the heart valve stent conveying device, the annular valve frame is sleeved on the surface of the balloon, and the limiting ring is abutted against the inner side of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121838629.5U CN215503584U (en) | 2021-08-06 | 2021-08-06 | Heart valve support and conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121838629.5U CN215503584U (en) | 2021-08-06 | 2021-08-06 | Heart valve support and conveying device |
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| CN215503584U true CN215503584U (en) | 2022-01-14 |
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| CN202121838629.5U Active CN215503584U (en) | 2021-08-06 | 2021-08-06 | Heart valve support and conveying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456300A (en) * | 2021-08-06 | 2021-10-01 | 康迪泰科(北京)医疗科技有限公司 | Heart valve support and conveying device |
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2021
- 2021-08-06 CN CN202121838629.5U patent/CN215503584U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456300A (en) * | 2021-08-06 | 2021-10-01 | 康迪泰科(北京)医疗科技有限公司 | Heart valve support and conveying device |
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