CN219434322U - Pre-inspection device for observing open and close states of valve prosthesis - Google Patents
Pre-inspection device for observing open and close states of valve prosthesis Download PDFInfo
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- CN219434322U CN219434322U CN202320170604.5U CN202320170604U CN219434322U CN 219434322 U CN219434322 U CN 219434322U CN 202320170604 U CN202320170604 U CN 202320170604U CN 219434322 U CN219434322 U CN 219434322U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a pre-examination device for observing the open and close states of a valve prosthesis, which comprises an observation cavity, a loading cavity, a pressure supply piece and a connecting pipe, wherein the loading cavity is arranged on the observation cavity; the observation cavity is provided with a liquid inlet and a first mounting port, the loading cavity is provided with a second mounting port, the first mounting port is communicated with the second mounting port, so that the observation cavity is connected with the loading cavity, the second mounting port is used for directly or indirectly mounting the valve prosthesis, the liquid inlet end of the valve prosthesis is positioned in the loading cavity, and the liquid outlet end of the valve prosthesis is positioned in the observation cavity; the pressure supplying piece is communicated with the loading cavity and is used for supplying pressure to the detection liquid in the loading cavity so as to enable the detection liquid to flow into the observation cavity from the loading cavity through the valve prosthesis; the observation cavity is also communicated with the loading cavity through a connecting pipe, and the connecting pipe is used for enabling the detection liquid in the observation cavity to flow into the loading cavity. The utility model can conveniently and rapidly observe the opening and closing states of the valve leaves after sewing in the valve prosthesis so as to preliminarily verify the rationality and effectiveness of sewing of the valve She Caijian in the design process.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, and particularly relates to a pre-detection device for observing the open and close states of a valve prosthesis.
Background
With the prolongation of human life and the aggravation of population aging, heart valve disease is a common heart disease, the incidence rate of which is higher and higher, and artificial heart valve replacement surgery is gradually becoming an effective method for treating heart valve disease. Prosthetic heart valves are classified into mechanical valves and biological valves according to the materials used, the mechanical valves being made of metallic materials and synthetic materials, and the biological valves being made entirely or partially of biological tissue. Because the biological valve simulates the mechanical property of a natural valve, the biological valve has excellent blood flow performance, does not need to be anticoagulated for life, can avoid anticoagulation related complications, has strong anti-infective power, is not easy to cause infective endocarditis after operation, can improve the life quality of patients, and is widely used for patients needing valve replacement.
The biological valve comprises a valve support, a plurality of valve leaflets are arranged on the valve support, the valve leaflets of the biological valve are usually formed by cutting and sewing porcine aortic valves and bovine pericardium, and the opening and closing states of the valve leaflets of the biological valve have extremely important influence on the efficacy of the artificial heart valve. Before the biological valve is put into use, the opening and closing states of the valve leaves of the biological valve need to be detected and verified.
However, in the existing device for observing the open and close states of the valve prostheses, on one hand, a plurality of valve prostheses are required to be installed in one device, and the valve prostheses are required to be matched with each other so that liquid in the whole device can form one cycle and complete testing, so that the device has a complex structure and a complex detection process, and on the other hand, the installation procedure of each valve prosthesis in the device is complex and the installation is not simple. Therefore, there is a need for developing a pre-examination device that can easily install a valve prosthesis and facilitate observation of the open and closed state of the valve prosthesis.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model provides a pre-inspection device for observing the open/close state of a valve prosthesis, which can conveniently and rapidly observe the open/close state of a valve leaflet after sewing in the valve prosthesis, so as to primarily verify the rationality and effectiveness of sewing of the valve She Caijian in the design process.
The technical scheme adopted for solving the technical problems is as follows:
a pre-inspection device for observing the open and close states of valve prostheses comprises an observation cavity, a loading cavity, a pressure supply piece and a connecting pipe;
the observation cavity is provided with a liquid inlet and a first mounting port, the loading cavity is provided with a second mounting port, the first mounting port is communicated with the second mounting port, so that the observation cavity is connected with the loading cavity, the second mounting port is used for directly or indirectly mounting a valve prosthesis, the liquid inlet end of the valve prosthesis is positioned in the loading cavity, and the liquid outlet end of the valve prosthesis is positioned in the observation cavity;
the pressure supplying piece is communicated with the loading cavity and is used for supplying pressure to the detection liquid in the loading cavity so as to enable the detection liquid to flow into the observation cavity from the loading cavity through the communication port of the first mounting port and the second mounting port;
the observation cavity is also communicated with the loading cavity through a connecting pipe, and the connecting pipe is used for enabling the detection liquid in the observation cavity to flow into the loading cavity.
Further, the pressure supply port, the second mounting port and the first mounting port of the pressure supply part are arranged along the same axial direction, so that the pressure supply direction of the pressure supply port and the liquid inlet end and the liquid outlet end of the valve prosthesis are coaxially arranged.
Further, an observation part is arranged on the observation cavity, the observation part is transparent, the observation part and the first mounting port are respectively positioned at two opposite sides of the observation cavity, and the observation part is used for observing the first mounting port;
or the observation cavity is arranged in a transparent way;
or, the observation cavity and the loading cavity are both transparent.
Further, the observation cavity is of a square structure, the loading cavity is of a hollow cylindrical structure, and the loading cavity is connected with the side face of the observation cavity along the axial direction of the cylindrical structure.
Further, the pre-inspection device for observing the open and close states of the valve prosthesis further comprises a fixing piece, the fixing piece is detachably arranged at the second mounting opening, the first mounting opening and the second mounting opening are circular openings, the fixing piece is of a circular ring structure, and the fixing piece is used for mounting the valve prosthesis.
Further, the top of the observation cavity is opened and a liquid inlet is formed, the loading cavity is provided with an outwardly extending pipeline on the other side wall opposite to the side wall where the second mounting opening is located, the first mounting opening, the second mounting opening and the pipeline are coaxially arranged, and the pressure supplying piece is communicated with the pipeline.
Further, the pressure supply part is a manual air bag, the manual air bag comprises a hand-held pressing part and a first air inlet pipe, and the first air inlet pipe is communicated with the pipeline;
or the pressure supply part is a pedal air bag, the pedal air bag comprises a pedal pressing part and a second air inlet pipe, and the second air inlet pipe is communicated with the pipeline;
or the pressure supply part is a diaphragm pump, the end part of a liquid inlet pipe of the diaphragm pump extends into the observation cavity from the liquid inlet, and a liquid discharge pipe of the diaphragm pump is communicated with the pipeline.
Further, one end of the connecting pipe is communicated with the lower part of the observation cavity, the other end of the connecting pipe is communicated with the bottom of the loading cavity, a lower luer connector is arranged on the connecting pipe, and an upper luer connector for exhausting is arranged at the upper end of the loading cavity.
Further, the loading cavity is in sealing connection with the observation cavity through an adjustable lock catch or threads.
Further, a groove is formed in the side surface, attached to the observation cavity, of the loading cavity around the second mounting opening in a circle, a sealing gasket is mounted in the groove, and the observation cavity is in sealing connection with the loading cavity through a plurality of adjustable locks.
Compared with the prior art, the utility model has the beneficial effects that:
according to the pre-detection device for observing the open and close states of the valve prosthesis, detection liquid in the observation cavity flows into the loading cavity through the connecting pipe, the lower luer connector is closed after the detection liquid fills the loading cavity, the pressure supply part is started, the detection liquid in the loading cavity flows into the observation cavity from the loading cavity under the pressure effect generated by the pressure supply part, namely after the valve prosthesis is installed, the detection liquid flows into the observation cavity through the liquid inlet end, the valve leaflet and the liquid outlet end of the valve prosthesis in sequence, so that the valve leaflet is opened, the detection liquid does not flow any more after the pressure supply part is closed, the lower luer connector is opened, and the detection liquid in the observation cavity flows into the loading cavity through the connecting pipe and waits for the next pressure supply. Therefore, the pre-inspection device can enable the detection liquid of the whole device to form a cycle through one valve prosthesis, is convenient to operate, and can more conveniently and rapidly observe the opening and closing states of the sewn valve leaves so as to preliminarily verify the rationality and effectiveness of the sewing of the valve She Caijian in the design process.
In the utility model, when the valve prosthesis is required to be installed, the valve prosthesis is firstly installed on the fixing piece, and then the fixing piece is installed at the second installation opening, so that the valve prosthesis in the pre-inspection device is easy, convenient and quick to install.
According to the utility model, as the pressure supply port of the pressure supply part, the second mounting port and the first mounting port are arranged along the same axial direction and the cylindrical structure of the loading cavity is arranged, the acting force of the detection liquid on the valve leaflet in the valve prosthesis is uniformly distributed under the action of the pressure supply part, and meanwhile, the arrangement of the cylindrical structure of the loading cavity simulates the structural arrangement of the heart part, so that the detection accuracy is improved; the square structure of the observation cavity is arranged, and the observation part can be arranged on the side face of the observation cavity, so that the open and close states of the valve leaflets in the valve prosthesis can be observed conveniently.
Drawings
Fig. 1 is a schematic perspective view of a pre-examination device for observing the open/close state of a valve prosthesis according to the first embodiment;
FIG. 2 is an enlarged schematic view of the adjustable lock of FIG. 1;
FIG. 3 is a schematic perspective view of a cross-section of the pre-inspection apparatus of FIG. 1;
FIG. 4 is a schematic perspective view of the pre-inspection device of FIG. 1 after installation of a valve prosthesis;
fig. 5 is a schematic perspective view of a pre-examination device for inspecting the open/close state of a valve prosthesis according to the second embodiment;
fig. 6 is a schematic perspective view of a pre-examination device for observing the open/close state of a valve prosthesis according to the third embodiment.
The reference numerals in the drawings illustrate: 1. the observation cavity, 101, the liquid inlet, 102, the first mounting port, 2, the loading cavity, 201, the second mounting port, 3, the valve prosthesis, 4, the connecting pipe, 5, the sealing gasket, 601, the first base, 602, the second base, 603, the mounting plate, 604, the rotating shaft, 605, the rotating handle, 606, the first connecting rod, 607, the second connecting rod, 7, the fixing piece, 8, the lower luer connector, 9, the upper luer connector, 10, the pipeline, 11, the manual air bag, 1101, the first air inlet pipe, 1102, the hand holding pressing part, 12, the pedal air bag, 1201, the second air inlet pipe, 1202, the pedal pressing part, 13, the diaphragm pump, 1301, the liquid inlet pipe, 1302 and the liquid drain pipe.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to be limiting.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1 to 6, a pre-examination device for observing the open and close states of a valve prosthesis comprises an observation cavity 1, a loading cavity 2, a pressure supply piece and a connecting pipe 4; the observation cavity 1 is provided with a liquid inlet 101 and a first mounting port 102, the loading cavity 2 is provided with a second mounting port 201, the first mounting port 102 is communicated with the second mounting port 201, so that the observation cavity 1 is connected with the loading cavity 2, the second mounting port 201 is used for directly or indirectly mounting the valve prosthesis 3, the liquid inlet end of the valve prosthesis 3 is positioned in the loading cavity 2, and the liquid outlet end of the valve prosthesis 3 is positioned in the observation cavity 1; the pressure supplying piece is communicated with the loading cavity 2 and is used for supplying pressure to the detection liquid in the loading cavity 2 so as to enable the detection liquid to flow into the observation cavity 1 from the loading cavity 2 through the valve prosthesis 3; the observation cavity 1 is also communicated with the loading cavity 2 through a connecting pipe 4, preferably, a lower luer connector 8 is arranged on the connecting pipe 4, the connecting pipe 4 is used for enabling the detection liquid in the observation cavity 1 to flow into the loading cavity 2, and preferably, an upper luer connector 9 for exhausting is arranged at the upper end of the loading cavity 2.
The detection liquid in the observation cavity 1 flows into the loading cavity 2 through the connecting pipe 4, the air in the loading cavity 2 is discharged outwards from the upper luer connector 9, the upper luer connector 9 is closed after the air in the loading cavity 2 is discharged, the lower luer connector 8 is closed after the loading cavity 2 is full of the detection liquid, the pressure supplying piece is started, the detection liquid in the loading cavity 2 flows into the observation cavity 1 through the valve leaves of the valve prosthesis 3 under the pressure generated by the pressure supplying piece, the valve leaves are further opened, the detection liquid does not flow any more after the pressure supplying piece is closed, the valve leaves are restored to be in a closed state, the lower luer connector 8 is opened, and the detection liquid in the observation cavity 1 flows into the loading cavity 2 through the connecting pipe 4 and waits for the next pressure supplying; therefore, the pre-inspection device can enable the detection liquid of the whole device to form a cycle through one valve prosthesis 3, is convenient to operate, and can more conveniently and rapidly observe the opening and closing states of the sewn valve leaves so as to preliminarily verify the rationality and effectiveness of the sewing of the valve She Caijian in the design process.
Preferably, as shown in fig. 3, the pressure supply port of the pressure supply member, the second mounting port 201 and the first mounting port 102 are disposed along the same axial direction, so that the pressure supply direction of the pressure supply port is coaxial with the liquid inlet end and the liquid outlet end of the valve prosthesis, which is convenient for hydraulic pressure to the valve She Shiya of the valve prosthesis 3, and further can intuitively understand the opening and closing change and the opening and closing state of the valve leaflet when receiving hydraulic pressure.
Preferably, an observation portion is provided on the observation cavity 1, the observation portion is provided in a transparent manner, the observation portion and the first mounting opening 102 are respectively located at two opposite sides of the observation cavity 1, and the observation portion is used for observing the first mounting opening 102 and further used for observing an opening and closing state of the valve leaflet in the valve prosthesis 3.
In other preferred embodiments, the observation cavity 1 is transparent, so that the open and close states of the valve leaflets in the valve prosthesis can be observed from multiple angles. In another preferred embodiment, the observation cavity 1 and the loading cavity 2 are both transparent, so that not only the condition of the whole valve prosthesis 3 but also the hydraulic impact condition of the detection liquid can be observed.
Preferably, as shown in fig. 1, 5 and 6, the observation cavity 1 has a square structure, the loading cavity 2 has a hollow cylindrical structure, and the loading cavity 2 is connected with the side surface of the observation cavity 1 along the axial direction of the cylindrical structure. The cylindrical structure of the loading cavity is arranged, so that under the action of pressure supplied by the pressure supply part, the acting force of the detection liquid on the valve leaflet in the valve prosthesis is uniformly distributed, and meanwhile, the cylindrical structure of the loading cavity simulates the structural arrangement of the heart part, so that the detection accuracy is improved; the square structure of the observation cavity is arranged, and the observation part can be arranged on the side face of the observation cavity, so that the open and close states of the valve leaflets in the valve prosthesis can be observed conveniently.
Preferably, the pre-inspection device for observing the open and close states of the valve prosthesis further comprises a fixing piece 7, the fixing piece 7 is detachably arranged at the second mounting opening 201, the first mounting opening 102 and the second mounting opening 201 are circular openings, the fixing piece 7 is of a circular ring structure, and the fixing piece 7 is used for mounting the valve prosthesis 3. Specifically, as shown in fig. 3 and 4, the outer diameter of one side of the fixing member 7 is smaller than the outer diameter of the other side, the diameter of one side of the first mounting opening 102 away from the second mounting opening 201 is smaller than the diameter of one side of the second mounting opening 201, the diameter of one side of the second mounting opening 201 close to the first mounting opening 102 is larger than the diameter of one side away from the first mounting opening 102, the large outer diameter side of the fixing member 7 is clamped on the large diameter sides of the first mounting opening 102 and the second mounting opening 201, the small outer diameter side of the fixing member 7 is inserted on the small diameter side of the first mounting opening 102, and the inner side wall of the fixing member 7 is used for being fixedly connected with the outer side wall of the valve support of the valve prosthesis 3 in a sealing manner. Wherein the valve leaves of the valve prosthesis 3 are fixed at the inner side wall of the valve bracket, and the inner diameter of the liquid inlet end of the valve bracket is larger than the inner diameter of the liquid outlet end of the valve bracket.
When the valve prosthesis 3 is installed, the liquid inlet end side of the valve prosthesis 3 extends into the loading cavity 2 through the second installation opening 201, then the large outer diameter side of the fixing piece 7 is inserted into the large diameter side of the second installation opening 201, then the outer side wall of the valve support is fixedly connected with the inner side wall of the fixing piece 7 in a sealing mode, then the first installation opening 102 of the observation cavity 1 is aligned with the fixing piece 7, the small outer diameter side of the fixing piece 7 is inserted into the small diameter side of the first installation opening 102, then the large diameter side of the fixing piece 7 is clamped on the large diameter sides of the first installation opening 102 and the second installation opening 201, and then the observation cavity 1 and the loading cavity 2 are connected in a sealing mode through a plurality of adjustable locks.
Preferably, the top of the observation cavity 1 is opened and forms a liquid inlet 101, the loading cavity 2 is provided with an outwardly extending pipeline 10 on the other side wall opposite to the side wall where the second mounting port 201 is located, the first mounting port 102, the second mounting port 201 and the pipeline 10 are coaxially arranged, and the pressure supplying piece is communicated with the pipeline 10. When the valve prosthesis 3 is mounted, the first mounting opening 102, the second mounting opening 201, the valve holder of the valve prosthesis 3 and the conduit 10 are coaxially arranged.
Preferably, as shown in fig. 1, 3 and 5, one end of the connecting pipe 4 is communicated with the lower part of the observation cavity 1, and the other end of the connecting pipe 3 is communicated with the bottom of the loading cavity 2; when the liquid level of the detection liquid in the observation cavity 1 is higher than that of the detection liquid in the loading cavity 2, the detection liquid in the observation cavity 1 can automatically flow into the loading cavity 2 through the connecting pipe 4.
Preferably, the loading cavity 2 is in sealing connection with the observation cavity 1 through an adjustable lock catch or screw thread, and the adjustable lock catch or screw thread can conveniently and simply connect the observation cavity 1 with the loading cavity 2.
Preferably, as shown in fig. 3, a groove is formed around the second mounting opening 201 on the side surface of the loading cavity 2, which is attached to the observation cavity 1, and a sealing gasket 5 is mounted in the groove, and the observation cavity 1 is in sealing connection with the loading cavity 2 through a plurality of adjustable locks. Specifically, the loading cavity 2 is located on the right side of the observation cavity 1, two adjustable locks are arranged symmetrically front and back, as shown in fig. 2, the front adjustable lock comprises a first base 601 fixedly connected with the front end of the observation cavity 1, the front adjustable lock further comprises a second base 602 fixedly connected with the front end of the loading cavity 2, the first base 601 comprises a horizontal mounting plate 603, the mounting plate 603 is rotationally connected with the right part of the rotary handle 605 through a vertical rotating shaft 604, a vertical first connecting rod 606 is fixed at the middle part of the rotary handle 605, the left part of the rotary handle 605 is a holding part, the upper end of the first connecting rod 606 is located above the rotary handle 605 and the lower end of the first connecting rod 606 is located below the rotary handle 605, a second connecting rod 607 which is U-shaped and is opened leftwards is fixed on the first connecting rod 606, the left upper end of the second connecting rod 607 is fixedly connected with the upper end of the first connecting rod 606, the left lower end of the second connecting rod 607 is fixedly connected with the lower end of the first connecting rod 606, and the right end of the second connecting rod is clamped in a notch in the right part of the second base 602.
Thus, for the front side adjustable lock catch, the holding part is held by hand and pulled leftwards, so that the rotary handle 605 rotates clockwise relative to the mounting plate 603 through the rotating shaft 604, the rotary handle 605 drives the second connecting rod 607 to move leftwards through the first connecting rod 606, the right end of the second connecting rod 607 is clamped in a notch at the right part of the second base 602, and similarly, the rear side adjustable lock catch is operated in the same way, and thus the front and rear adjustable lock catches and the sealing gasket 5 are matched to enable the observation cavity 1 to be in sealing connection with the loading cavity 2, and accordingly detection liquid is prevented from flowing outwards from a gap between the observation cavity 1 and the loading cavity 2.
Example 1
As shown in fig. 1 and 3, the pressure supplying member is a manual air bag 11, and the manual air bag 11 includes a hand-held pressing portion 1102 and a first air intake pipe 1101, and the first air intake pipe 1101 communicates with the duct 10.
Like this hold through the extrusion and press the portion 1102 to provide high-pressure gas to loading chamber 2, make the interior detection liquid of loading chamber 2 flow into the observation intracavity 1 through the lamella under the pressure effect, and then make the lamella open, can observe the open and shut state of making back lamella in this in-process, press the portion 1102 through holding the extrusion frequency of holding through the change, press the portion 1102 through different rates to holding promptly and unclamp, make the detection liquid by loading chamber 2 to observing chamber 1 intermittent type nature flow, with the state of opening and shutting of lamella is observed dynamically. Through changing the extrusion rate of holding the pressing part 1102, namely through the extrusion of a certain rate holding the pressing part 1102, the detection liquid flows from the loading cavity 2 to the observing cavity 1 stably at a corresponding rate so as to observe the opening and closing state of the valve leaf stably, and the pressing part 1102 is held by extruding at another rate so as to observe the opening and closing state of the valve leaf stably.
Example 2
As shown in fig. 5, the pressure supplying member is a foot air bag 12, the foot air bag 12 includes a foot pressing portion 1202 and a second air inlet pipe 1201, and the second air inlet pipe 1201 communicates with the pipe 10.
Thus, the pedal pressing part 1202 is pressed to provide high-pressure gas for the loading cavity 2, so that the detection liquid in the loading cavity 2 flows into the observation cavity 1 through the valve leaf under the action of pressure, the valve leaf is opened, the opening and closing states of the valve leaf after sewing can be observed in the process, and the detection liquid intermittently flows from the loading cavity 2 to the observation cavity 1 by changing the pressing frequency of the pedal pressing part 1202, namely pressing and loosening the pedal pressing part 1202 at different speeds, so that the opening and closing states of the valve leaf are dynamically observed. By changing the extrusion rate of the pedal pressing portion 1202, namely extruding the pedal pressing portion 1202 at a certain rate, the detection liquid flows from the loading cavity 2 to the observation cavity 1 stably, so that the opening and closing states of the valve leaflets are observed stably, and similarly, the pedal pressing portion 1202 is extruded at another rate to observe the opening and closing states of the valve leaflets stably. Wherein the foot-operated air bag 12 frees the hands of the operator for the operation of the pre-examination apparatus and for the observation of the open and closed state of the valve leaflets.
Example 3
As shown in fig. 6, the pressure supply member is a diaphragm pump 13, the end of a liquid inlet pipe 1301 of the diaphragm pump 13 extends from the liquid inlet 101 into the observation cavity 1, and a liquid outlet pipe 1302 of the diaphragm pump 13 is communicated with the pipe 10.
Thus, the detection liquid in the observation cavity 1 flows into the loading cavity 2 through the connecting pipe 4, the air in the loading cavity 2 is discharged outwards from the upper luer connector 9, the upper luer connector 9 is closed after the air in the loading cavity 2 is discharged, the lower luer connector 8 is closed after the loading cavity 2 is filled with the detection liquid, after the diaphragm pump 13 is started, the detection liquid in the observation cavity 1 flows into the diaphragm pump 13 through the liquid inlet pipe 1301 of the diaphragm pump 13, flows into the loading cavity 2 through the liquid outlet pipe 1302 of the diaphragm pump 13 and returns to the observation cavity 1 through the valve leaf, the valve leaf is opened, the detection liquid does not flow any more after the diaphragm pump 13 is closed, the valve leaf is restored to a closed state, the lower luer connector 8 is opened, and the detection liquid in the observation cavity 1 flows into the loading cavity 2 through the connecting pipe 4 and waits for the next pressure supply.
The working principle of the pre-detection device for observing the open and close states of the valve prosthesis is as follows:
pouring detection liquid into the observation cavity 1 from the liquid inlet 101, opening the upper luer connector 9 and the lower luer connector 8, allowing the detection liquid to flow into the loading cavity 2 through the connecting pipe 4, discharging air in the loading cavity 2 from the upper luer connector 9 outwards, closing the upper luer connector 9 after the air in the loading cavity 2 is discharged, and closing the lower luer connector 8 after the detection liquid is filled into the loading cavity 2, wherein the liquid level in the observation cavity 1 is higher than the liquid level in the loading cavity 2, so that the detection liquid can be fully filled in the loading cavity 2, the valve leaflet can be completely immersed in the liquid environment, and the environment of the valve prosthesis 3 in a human body is simulated;
starting the pressure supplying part, and enabling the detection liquid in the loading cavity 2 to flow into the observation cavity 1 through the valve leaflet of the valve prosthesis 3 under the pressure effect generated by the pressure supplying part, so that the valve leaflet is opened;
the opening and closing states of the valve leaflets are observed through the observation cavity;
after closing the pressure supplying part, the detection liquid does not flow any more, and the valve leaves are restored to a closed state;
the lower luer fitting 8 is opened, and the detection liquid in the observation cavity 1 flows into the loading cavity 2 through the connecting pipe 4 and waits for the next pressure supply.
It should be understood that the open and close states of the valve leaflets are observed during the whole pressure supplying process. Wherein, because the detection liquid in the loading cavity 2 flows into the observation cavity 1 from the loading cavity 2 under the pressure of the pressure supplying part, the detection liquid in the observation cavity 1 flows into the loading cavity 2 through the connecting pipe 4 and the lower luer connector 8, thus realizing the circulating flow of the detection liquid so as to simulate the flow of liquid tissues in a human body.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (10)
1. A pre-examination device for observing the open and close states of a valve prosthesis, which is characterized in that: comprises an observation cavity (1), a loading cavity (2), a pressure supply piece and a connecting pipe (4);
the valve prosthesis comprises a valve prosthesis body, and is characterized in that a liquid inlet (101) and a first mounting opening (102) are formed in the observation cavity body (1), a second mounting opening (201) is formed in the loading cavity body (2), the first mounting opening (102) is communicated with the second mounting opening (201) so that the observation cavity body (1) is connected with the loading cavity body (2), the second mounting opening (201) is used for directly or indirectly mounting the valve prosthesis body (3), the liquid inlet end of the valve prosthesis body (3) is positioned in the loading cavity body (2), and the liquid outlet end of the valve prosthesis body is positioned in the observation cavity body (1);
the pressure supplying piece is communicated with the loading cavity (2) and is used for supplying pressure to the detection liquid in the loading cavity (2), so that the detection liquid flows into the observation cavity (1) from the loading cavity (2) through the communication port of the first mounting port (102) and the second mounting port (201);
the observation cavity (1) is also communicated with the loading cavity (2) through a connecting pipe (4), and the connecting pipe (4) is used for enabling the detection liquid in the observation cavity (1) to flow into the loading cavity (2).
2. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein: the pressure supply port of the pressure supply part, the second mounting port (201) and the first mounting port (102) are arranged along the same axial direction, so that the pressure supply direction of the pressure supply port and the liquid inlet end and the liquid outlet end of the valve prosthesis are coaxially arranged.
3. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein:
the observation cavity (1) is provided with an observation part which is transparent, the observation part and the first mounting opening (102) are respectively positioned at two opposite sides of the observation cavity (1), and the observation part is used for observing the first mounting opening (102);
or the observation cavity (1) is arranged in a transparent way;
or, the observation cavity (1) and the loading cavity (2) are both transparent.
4. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein: the observation cavity (1) is of a square structure, the loading cavity (2) is of a hollow cylindrical structure, and the loading cavity (2) is connected with the side face of the observation cavity (1) along the axial direction of the cylindrical structure.
5. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein: the pre-inspection device for observing the open and close states of the valve prosthesis further comprises a fixing piece (7), the fixing piece (7) is detachably arranged at the second mounting opening (201), the first mounting opening (102) and the second mounting opening (201) are circular openings, the fixing piece (7) is of a circular ring-shaped structure, and the fixing piece (7) is used for mounting the valve prosthesis (3).
6. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein: the observation cavity (1) is opened at the top and forms a liquid inlet (101), the loading cavity (2) is provided with an outwards extending pipeline (10) on the other side wall opposite to the side wall where the second mounting opening (201) is located, the first mounting opening (102), the second mounting opening (201) and the pipeline (10) are coaxially arranged, and the pressure supplying piece is communicated with the pipeline (10).
7. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein: the pressure supply part is a manual air bag (11), the manual air bag (11) comprises a hand-held pressing part (1102) and a first air inlet pipe (1101), and the first air inlet pipe (1101) is communicated with the pipeline (10);
or, the pressure supply part is a pedal air bag (12), the pedal air bag (12) comprises a pedal pressing part (1202) and a second air inlet pipe (1201), and the second air inlet pipe (1201) is communicated with the pipeline (10);
or the pressure supply part is a diaphragm pump (13), the end part of a liquid inlet pipe (1301) of the diaphragm pump (13) extends into the observation cavity (1) from the liquid inlet (101), and a liquid discharge pipe (1302) of the diaphragm pump (13) is communicated with the pipeline (10).
8. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein: one end of the connecting pipe (4) is communicated with the lower part of the observation cavity (1), the other end of the connecting pipe (4) is communicated with the bottom of the loading cavity (2), a lower luer connector (8) is arranged on the connecting pipe (4), and an upper luer connector (9) for exhausting is arranged at the upper end of the loading cavity (2).
9. A pre-examination apparatus for observing the open and closed state of a valve prosthesis according to claim 1, wherein: the loading cavity (2) is connected with the observation cavity (1) in a sealing way through an adjustable lock catch or threads.
10. The pre-examination apparatus for observing the open/close state of a valve prosthesis according to claim 9, wherein: the loading cavity (2) and the observing cavity (1) are attached to each other, a groove is formed in the side face of the loading cavity (2) and surrounds the second mounting opening (201) in a circle, a sealing gasket (5) is mounted in the groove, and the observing cavity (1) is in sealing connection with the loading cavity (2) through a plurality of adjustable locks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170604.5U CN219434322U (en) | 2023-01-20 | 2023-01-20 | Pre-inspection device for observing open and close states of valve prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170604.5U CN219434322U (en) | 2023-01-20 | 2023-01-20 | Pre-inspection device for observing open and close states of valve prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219434322U true CN219434322U (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320170604.5U Active CN219434322U (en) | 2023-01-20 | 2023-01-20 | Pre-inspection device for observing open and close states of valve prosthesis |
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| Country | Link |
|---|---|
| CN (1) | CN219434322U (en) |
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2023
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