One-way valve and conveyor
By designing a one-way valve for the conveyor, one-way conduction is achieved using the opening and closing state of the incision, the problem of inconvenient exhaust operation of the conveyor is solved and the efficiency and safety of the surgery are improved.
Patent Information
- Application Number
- CN202311816591.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-06-27
AI Technical Summary
The conveyor is inconvenient to operate during the preoperative exhaust process, which is prone to misoperation, resulting in prolonged surgical time and increased patient's risk of surgery.
A one-way valve is designed, including a valve body, a gland and a flow guide. By setting a cutout on the body part of the flow guide, the cutout is in an open or closed state using external force, thereby realizing one-way conduction and simplifying exhaust operation.
Through the design of the check valve, the exhaust process of the conveyor is simplified, the possibility of misoperation is reduced, and the efficiency and safety of the surgery are improved.
Smart Images
Figure CN120204612A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of medical devices, and specifically relates to a one-way valve and a conveyor. Background Art
[0002] Vascular interventional surgery is a minimally invasive surgery performed using modern high-tech means. Under the guidance of medical imaging equipment, special catheters, guidewires and other precision instruments are introduced into the human body through blood vessels to diagnose and locally treat lesions in the body. It has small trauma, simple operation, less bleeding, and fast postoperative recovery, so that some patients who cannot tolerate major surgery and drug resistance can be treated. It is a new direction for the development of modern medicine.
[0003] Under normal conditions, vascular interventional surgery requires the use of a conveyor to deliver the instrument to the designated part of the body. One of the functions of the conveyor is to establish a vascular pathway from the outside to the inside. There is a gap between the lumens, and the air in the lumen gap needs to be discharged before surgery to avoid air embolism caused by too much gas entering the human blood circulation system. The current common practice is to connect a hose to the end of each lumen of the conveyor and connect a three-way valve for exhaust operation. When exhaust is required, unscrew the valve of the three-way valve, use a syringe to inject saline into the lumen from the Luer connector until the saline can be continuously discharged from the lumen outlet, then close the valve of the three-way valve and withdraw the syringe.
[0004] Since the three-way valve is usually small in size, it is not convenient to close and open the valve, and medical staff need to wear gloves to operate it in the operating room. At this time, the flexibility of the fingers will decrease, and the possibility of various misoperations will increase. For example, the valve is not turned on, or the valve is not completely closed after the exhaust is completed, or the gloves are scratched during this process. Misoperation will lead to prolonged surgery time, increased surgical risks for patients, and complaints from doctors. Summary of the invention
[0005] The purpose of the present application is to at least solve the problem of inconvenience in the operation of the conveyor during the preoperative exhaust process. This purpose is achieved by:
[0006] The present application proposes a one-way valve, the one-way valve comprising:
[0007] A valve body, wherein the valve body is provided with a liquid outlet;
[0008] A gland, the gland is connected to the valve body, the gland is provided with a liquid inlet, and a guide channel is formed between the liquid inlet and the liquid outlet;
[0009] A flow guide member, the flow guide member is arranged in the flow guide channel, the flow guide member comprises a main body and a cutout penetrating the main body along the axial direction of the flow guide channel, the cutout is used to communicate with the flow guide channel;
[0010] The guide member has a first state in which it abuts against a portion of the gland and places the incision in a closed state, and the guide member also has a second state in which it separates from a portion of the gland under the action of an external force and places the incision in an open state.
[0011] According to the one-way valve of the present application, by setting a cutout on the main body of the flow guide, when no liquid medium acts on the main body, or when the liquid medium acts on the main body along the direction of the liquid outlet toward the liquid inlet, the main body abuts against part of the gland and makes the cutout in a closed state, so that the flow guide channel is in a first state, preventing the liquid medium from flowing to the liquid inlet through the liquid outlet, and when the liquid medium acts on the main body along the direction of the liquid inlet toward the liquid outlet, the main body can be deformed and the cutout is in an open state, so that the liquid inlet and the liquid outlet are connected through the opened cutout to achieve the conduction of the flow guide channel, thereby achieving the one-way conduction effect of the one-way valve. When it is necessary to exhaust the inner cavity of the conveyor, the liquid outlet of the one-way valve can be connected to the inner cavity of the conveyor, and the liquid medium is input into the inner cavity of the conveyor through the liquid inlet, so that the gas in the inner cavity of the conveyor is discharged, until the liquid medium is continuously discharged from the inner cavity of the conveyor, indicating that the gas in the inner cavity of the conveyor is completely discharged, and then the interventional device can be transported through the conveyor.
[0012] In addition, the one-way valve according to the present application may also have the following additional technical features:
[0013] In some embodiments of the present application, a first groove is formed at one end of the main body facing the gland, and along the axial direction of the guide channel, the projection of the cutout is within the projection range of the first groove.
[0014] In some embodiments of the present application, a second groove is formed at one end of the main body away from the pressure cover, and along the axial direction of the guide channel, the projection of the incision is within the projection range of the second groove, and the projection area of the first groove is larger than the projection area of the second groove.
[0015] In some embodiments of the present application, the guide member is a rubber member or a silicone member.
[0016] In some embodiments of the present application, the gland includes a gland body and a stopper connected to each other, the stopper is disposed in the flow guide channel, and the flow guide is in contact with the stopper when in the first state.
[0017] In some embodiments of the present application, the stop member includes a stop block, the guide member abuts against the stop block when in the first state, and the stop block covers at least a portion of the incision.
[0018] In some embodiments of the present application, the stop member includes a first stop portion and a second stop portion, one end of the first stop portion and one end of the second stop portion are respectively connected to the pressure cover body, and when the guide member is in the first state, the other end of the first stop portion and the other end of the second stop portion are respectively abutted against partial structures of the main body located on both sides of the length direction of the incision.
[0019] In some embodiments of the present application, the first stop portion includes a first support plate, and the second stop portion includes a second support plate. The other end of the first support plate and the other end of the second support plate are respectively parallel to the length direction of the incision. Along the direction from the pressure cover toward the valve body, the spacing between the first support plate and the second support plate gradually decreases. The first support plate and the second support plate can be deformed and squeeze the main body under the action of external force, and the incision is in an open state.
[0020] In some embodiments of the present application, one end of the first stop portion and one end of the second stop portion are respectively connected to the pressure cover body in a rotatable manner, the other end of the first stop portion is provided with a first supporting surface for fitting with the main body, and the other end of the second stop portion is provided with a second supporting surface for fitting with the main body.
[0021] In some embodiments of the present application, the pressure cover body is provided with a first limiting protrusion and a second limiting protrusion. When the guide member is in the first state, the first limiting protrusion abuts against the surface of the first stop portion away from the guide member, and the second limiting protrusion abuts against the surface of the second stop portion away from the guide member.
[0022] In some embodiments of the present application, a first mounting groove and a second mounting groove are provided on the end surface of the pressure cover body facing the guide member, a first rotating shaft is provided at one end of the first stop portion, and the first rotating shaft is rotatably provided in the first mounting groove, a second rotating shaft is provided at one end of the second stop portion, and the second rotating shaft is rotatably provided in the second mounting groove, and the one-way valve is also provided with a fixing member, which is connected to the pressure cover body and is used to limit the first rotating shaft and the second rotating shaft along the axial direction of the guide channel.
[0023] The second aspect of the present application also proposes a conveyor, which includes the one-way valve described in any one of the above items, and the conveyor also includes a conveying member, a conveying cavity is formed inside the conveying member, the one-way valve is arranged on the outer wall of the conveying member, and the liquid outlet of the one-way valve is connected to the conveying cavity, wherein the one-way valve and the conveying member are split structures and are connected, or the one-way valve and the conveying member are integrated structures.
[0024] In some embodiments of the present application, the conveyor further includes a handle and an outer sheath tube. The proximal end of the outer sheath tube is connected to the handle. At least the distal end of the conveyor is disposed within the handle, and the distal end of the conveyor is connected to the proximal end of the outer sheath tube, such that the conveying cavity communicates with the inner cavity of the outer sheath tube.
[0025] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other objects, features, and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically exemplified below. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to denote the same components. Among them:
[0027] Figure 1 is a schematic structural diagram of a one-way valve according to an embodiment of the present application;
[0028] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the one-way valve along line A-A in ;
[0029] Figure 3 is Figure 2 a flow diagram of the internal medium of the one-way valve when the flow guide member is in the first state in ;
[0030] Figure 4 is Figure 2 a flow diagram of the internal medium of the one-way valve when the flow guide member is in the second state in ;
[0031] Figure 5 is Figure 1 an exploded structural diagram of the one-way valve in ;
[0032] Figure 6 is Figure 5 a schematic structural diagram of the flow guide member in ;
[0033] Figure 7 is Figure 6 a schematic cross-sectional structure diagram of the flow guide member along line B-B in ;
[0034] Figure 8 is Figure 5 a schematic structural diagram of the gland in ;
[0035] Figure 9Schematic diagram of the internal structure of the one-way valve when the flow guide is in the first state according to another embodiment of the present application;
[0036] Figure 10 It is Figure 9 Schematic diagram of the internal structure of the one-way valve when the flow guide is in the second state in
[0037] Figure 11 It is Figure 9 Exploded structure diagram of the one-way valve in
[0038] Figure 12 Schematic diagram of the internal structure of the one-way valve when the flow guide is in the first state according to yet another embodiment of the present application;
[0039] Figure 13 It is Figure 12 Schematic diagram of the internal structure of the one-way valve when the flow guide is in the second state in
[0040] Figure 14 It is Figure 12 Exploded structure diagram of the one-way valve in
[0041] Figure 15 It is Figure 14 Schematic diagram of the structure of the fixing member in
[0042] Figure 16 Schematic diagram of the structure of the conveying member according to an embodiment of the present application;
[0043] Figure 17 According to Figure 16 Exploded structure diagram of the conveying member in
[0044] Figure 18 It is Figure 16 Cross-sectional structure diagram of the conveying member in
[0045] Figure 19 Schematic diagram of the structure of the conveyor according to an embodiment of the present application. Detailed implementation manners
[0046] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be fully conveyed to those skilled in the art.
[0047] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.
[0048] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly dictates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.
[0049] For ease of description, in the context of this specification, when an element is referred to as being "on" another element, it may be directly on the other element or indirectly on the other element with one or more intervening elements therebetween. Also, in the context of this specification, when an element is referred to as "connected" or "coupled" or "attached" to another element, it may be directly connected or coupled or attached to the other element or indirectly connected, coupled, or attached to the other element with one or more intervening elements therebetween. Additionally, when an element is referred to as being "engaged" with another element, it may be directly engaged or in contact with the other element or indirectly engaged or in contact with the other element with one or more intervening elements therebetween.
[0050] Spatial relative relationship terms can also be used in the text to describe the relationship of one element or feature shown in the figure relative to another element or feature. These relative relationship terms are, for example, "inner", "outer", "inner side", "outer side", "below", "beneath", "above", "upper", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure is flipped, the element described as "below other element or feature" or "beneath other element or feature" will then be oriented as "above other element or feature" or "upper other element or feature". Therefore, the exemplary term "below" can include both upper and lower orientations.
[0051] To solve the problem of inconvenient operation of the conveyor during pre-operative exhaust, the present application proposes a one-way valve and a conveyor having the one-way valve. According to the one-way valve of the present application, when it is necessary to exhaust the inner cavity of the conveyor, the liquid outlet of the one-way valve can be connected to the inner cavity of the conveyor, and a liquid medium can be input into the inner cavity of the conveyor through the liquid inlet, so as to discharge the gas in the inner cavity of the conveyor. When continuous and uninterrupted liquid medium is discharged from the inner cavity of the conveyor, it indicates that all the gas in the inner cavity of the conveyor has been discharged, and then the interventional instrument can be conveyed through the conveyor.
[0052] Combined Figures 1 to 5 As shown, in some embodiments of the present application, the one-way valve 1 includes a valve body 10, a gland 20 and a flow guiding member 30. The valve body 10 is provided with a liquid outlet 141. The gland 20 is connected to the valve body 10. The gland 20 is provided with a liquid inlet 231. A flow guiding channel 40 is formed between the liquid inlet 231 and the liquid outlet 141. The flow guiding member 30 is disposed in the flow guiding channel 40. The flow guiding member 30 includes a body portion 31 and a notch 32 axially penetrating the body portion 31 along the flow guiding channel 40. The notch 32 is used to communicate with the flow guiding channel 40. Among them, the flow guiding member 30 has a first state in which it abuts against a part of the gland 20 and closes the notch 32, and the flow guiding member 30 further has a second state in which it separates from the gland 20 under the action of an external force and opens the notch 32.
[0053] Specifically, a first diversion channel 41 communicating with the liquid outlet 141 is provided inside the valve body 10, and a second diversion channel 42 communicating with the liquid inlet 231 is provided inside the gland 20. After the valve body 10 and the gland 20 are assembled into one body, the first diversion channel 41 and the second diversion channel 42 jointly form a diversion passage 40. A diversion member 30 is disposed in the diversion passage 40, and a cut 32 penetrating through the body portion 31 is formed on the diversion member 30. When the diversion member 30 is in the first state and the cut 32 is in the closed state, the first diversion channel 41 and the second diversion channel 42 are not communicated with each other. When the diversion member 30 is in the second state and the cut 32 is in the open state, the first diversion channel 41 and the second diversion channel 42 are communicated with each other. Herein, the cut refers to an opening formed by using cutting techniques such as laser cutting or knife cutting to penetrate through a component. The width dimension of the cut is very small compared to the length dimension. When no external force acts, the portions on both sides of the cut in the length direction are closely attached, and the cut is in the closed state. When an external force acts, the structures on both sides of the cut in the length direction are deformed, so that the cut is in the open state. The two sides in the length direction refer to the direction perpendicular to the length direction, rather than the length direction.
[0054] According to the one-way valve 1 of the present application, by providing the cut 32 on the body portion 31 of the diversion member 30, when no liquid medium acts on the body portion 31, or when the liquid medium acts on the body portion 31 in the direction from the liquid outlet 141 towards the liquid inlet 231, the body portion 31 abuts against a part of the gland 20 and makes the cut 32 in the closed state, so that the diversion passage 40 is in the disconnected state, preventing the liquid medium from flowing through the liquid outlet 141 to the liquid inlet 231, as Figure 3 shown. When the liquid medium acts on the body portion 31 in the direction from the liquid inlet 231 towards the liquid outlet 141, the body portion 31 can be deformed and the cut 32 is in the open state, so as to connect the liquid inlet 231 and the liquid outlet 141 through the opened cut 32, so as to realize the conduction of the diversion passage 40, and further realize the one-way conduction function of the one-way valve 1, as Figure 4 shown. When it is necessary to exhaust the inner cavity of the conveyor, the liquid outlet 141 of the one-way valve 1 can be communicated with the inner cavity of the conveyor, and a liquid medium is input into the inner cavity of the conveyor through the liquid inlet 231, so as to discharge the gas in the inner cavity of the conveyor. Until continuous and uninterrupted liquid medium is discharged from the inner cavity of the conveyor, it indicates that all the gas in the inner cavity of the conveyor has been discharged, and then the interventional instrument can be conveyed through the conveyor. Wherein, Figure 3 and Figure 4 the directions indicated by the thick black arrows in
[0055] Combined with Figures 1 to 5As shown, in some embodiments of the present application, the valve body 10 includes a valve main body 11. An installation cavity 12 is formed at one end of the valve main body 11 away from the liquid outlet 141. The flow guide member 30 is disposed in the installation cavity 12. When the valve body 10 is assembled with the gland 20, the flow guide member 30 is clamped between the valve body 10 and the gland 20, thereby reducing the displacement of the flow guide member 30 under the action of external force. Multiple connection methods such as clamping connection, threaded connection, or connection through a connecting member can be adopted between the valve body 10 and the gland 20. In some embodiments of the present application, a plugging protrusion 24 is provided at the end of the gland 20 facing the valve body 10. A positioning groove 13 corresponding to the plugging protrusion 24 is provided on the outer surface of the valve body 10. The plugging protrusion 24 is plugged into the positioning groove 13 and is clamped with the side wall of the positioning groove 13.
[0056] In some embodiments of the present application, a plugging end 14 is provided at one end of the valve main body 11 away from the gland 20. The liquid outlet 141 is provided at one end of the plugging end 14 away from the gland 20, so as to facilitate the connection with the conveyor through the plugging end 14 and make the liquid outlet 141 communicate with the inner cavity of the conveyor. A connection end 23 is provided at one end of the gland 20 away from the valve body 10. The liquid inlet 231 is provided at one end of the connection end 23 away from the valve body 10, so as to facilitate the connection with the external pipeline through the connection end 23 and input the liquid medium into the flow guide channel 40 through the liquid inlet 231. Wherein, a connection thread may also be provided on the outer surface of the connection end 23.
[0057] Combined with Figures 2 to 7 As shown, in some embodiments of the present application, the flow guide member 30 is a rubber member or a silica gel member. The rubber member or silica gel member is easy to deform under the action of external force and is easy to return to its original state when the external force is removed. When there is an external force acting on the flow guide member 30, especially on the partial structures on both sides in the length direction of the notch 32, the flow guide member 30 deforms under the action of the external force, so that the notch 32 is in an open state, and further the flow guide channel 40 is in a conducting state. When the external force acting on the flow guide member 30 is removed, the flow guide member 30 returns to its original state and abuts against a part of the gland 20, so that the notch 32 is in a closed state, and further the flow guide channel 40 is in a closed state.
[0058] Combined with Figures 2 to 7 As shown, in some embodiments of the present application, a first groove 33 is formed at one end of the main body portion 31 facing the gland 20. Along the axial direction of the flow guide channel 40, the projection of the notch 32 is within the projection range of the first groove 33.
[0059] By providing the first groove 33 and making the projection of the incision 32 fall within the projection range of the first groove 33, the thickness dimension of the body portion 31 near the incision 32 can be reduced, so that the body portion 31 near the incision 32 is more likely to deform under the action of an external force, thereby keeping the incision 32 in an open state. Herein, the body portion 31 can generally be in a cylindrical structure, and the first groove 33 can be a circular groove formed by the depression of the end face of the cylindrical structure.
[0060] Combined with Figures 2 to 7 As shown, in some embodiments of the present application, a second groove 34 is formed at one end of the body portion 31 away from the gland 20. Along the axial direction of the diversion channel 40, the projection of the incision 32 falls within the projection range of the second groove 34, and the projected area of the first groove 33 is larger than the projected area of the second groove 34.
[0061] By providing the second groove 34 and making the projection of the incision 32 fall within the projection range of the second groove 34, the thickness dimension of the body portion 31 near the incision 32 can be reduced, so that the body portion 31 near the incision 32 is more likely to deform under the action of an external force, thereby keeping the incision 32 in an open state. At the same time, by setting the projected area of the first groove 33 to be larger than the projected area of the second groove 34, under the action of an equal external force value, the external force in the direction from the liquid inlet 231 towards the liquid outlet 141 is more likely to deform the body portion 31 than the external force in the direction from the liquid outlet 141 towards the liquid inlet 231, thereby improving the one-way conductivity of the one-way valve 1. Herein, the second groove 34 can be a rectangular groove, and the length direction of the incision 32 is consistent with the length direction of the rectangular groove.
[0062] Combined with Figures 2 to 8 As shown, in some embodiments of the present application, the gland 20 includes a connected gland body 21 and a stopper 22, and the diversion member 30 abuts against the stopper 22 when in the first state.
[0063] Making the stopper 22 abut against the body portion 31 of the diversion member 30. Specifically, the stopper 22 abuts against the position where the incision 32 is located, or the stopper 22 abuts against the body portion 31 on both sides in the length direction of the incision 32. When an external force in the direction from the liquid outlet 141 towards the liquid inlet 231 acts on the body portion 31, the body portion 31 on both sides in the length direction of the incision 31 tends to bulge and deform towards the liquid inlet 231, but since the stopper 22 abuts against the body portion 31 on both sides in the length direction of the incision 32, the body portion 31 on both sides in the length direction of the incision 32 is prevented from deforming, ensuring that the incision 32 is in a closed state, and further improving the one-way conductivity of the one-way valve 1.
[0064] Combined with Figures 2 to 8As shown, in some embodiments of the present application, the stopper 22 includes a stopper block 222. The stopper block 222 is disposed in the diversion channel 40 and there is a conduction port 223 between the stopper block 222 and the gland body 21. When the diversion member 30 is in the first state, it abuts against the stopper block 222, and the stopper block 222 covers at least a part of the notch 32.
[0065] In some embodiments of the present application, the gland 20 includes a gland body 21. An annular groove 213 is provided on the end face of the gland body 21 facing the valve body 10. The annular groove 213 divides the end face of the gland body 21 into a first mounting portion 211 and a second mounting portion 212. When the valve body 10 and the gland 20 are assembled into the one-way valve 1, the end of the valve body 11 facing the gland 20 is inserted into the annular groove 213, thereby positioning the valve body 10 and the gland 20. Among them, the valve body 11 and the annular groove 213 can be snap-connected, or the end face between the valve body 11 and the gland body 21 can be adhesively bonded. When the valve body 11 and the gland body 21 are connected by adhesive bonding, an adhesive can be provided on the end faces opposite to each other, and an overflow groove 2111 is provided on the inner side surface of the first mounting portion 211. The excess adhesive is accommodated through the overflow groove 2111 to prevent the excess adhesive from entering the diversion channel 40 and interfering with the movement of the body portion 31 of the diversion member 30.
[0066] In some embodiments of the present application, a stopper block 222 may protrude from the center position of the second mounting portion 212 toward the valve body 10. By setting the position of the stopper block 222 opposite to the notch 32 and covering at least a part of the notch 32, when the liquid medium acts on the body portion 31 in the direction from the liquid outlet 141 to the liquid inlet 231, the deformation of the body portion 31 can be prevented, and further the opening of the notch 32 can be prevented. When the liquid medium acts on the body portion 31 in the direction from the liquid inlet 231 to the liquid outlet 141, the liquid medium can act on the body portion 31 through the conduction port 223, so that the body portion 31 bulges and deforms in the direction of the liquid outlet 141, and further the notch 32 is in an open state and the diversion channel 40 is in a connected state.
[0067] In some embodiments of the present application, the stopper 22 further includes a protrusion 221 disposed at the center position of the second mounting portion 212. A central opening communicating with the diversion channel 40 is provided at the center of the protrusion 221. The stopper block 222 is disposed at the central opening, and there is a conduction port 223 between the stopper block 222 and the inner wall surface of the central opening. The protrusion 221 can be inserted into the installation cavity 12, thereby being used to squeeze and fix the diversion member 30 and improving the positioning effect of the diversion member 30 in the installation cavity 12.
[0068] Combined with Figures 9 to 11As shown, in some embodiments of the present application, the stopper 22 includes a first stopper portion 224 and a second stopper portion 225. One end of the first stopper portion 224 and one end of the second stopper portion 225 are respectively connected to the gland body 21. When the deflector 30 is in the first state, the other end of the first stopper portion 224 and the other end of the second stopper portion 225 are respectively abutted against the partial structures of the body portion 31 on both sides in the length direction of the notch 32.
[0069] By respectively abutting the other end of the first stopper portion 224 and the other end of the second stopper portion 225 against the partial structures of the body portion 31 on both sides in the length direction of the notch 32, when a liquid medium acts on the body portion 31 in the direction from the liquid outlet 141 towards the liquid inlet 231, deformation of the body portion 31 on both sides in the length direction of the notch 32 can be prevented, thereby ensuring that the notch 32 is in a closed state. When a liquid medium acts on the body portion 31 in the direction from the liquid inlet 231 towards the liquid outlet 141, it can act on the body portion 31 through the conduction port 223, so that the body portion 31 on both sides in the length direction of the notch 32 deforms, and further the notch 32 is in an open state. When the intervention instrument 2 acts on the body portion 31 in the direction from the liquid inlet 231 towards the liquid outlet 141, deformation or displacement of the first stopper portion 224 and the second stopper portion 225 can be caused, so that the deformed or displaced first stopper portion 224 and second stopper portion 225 press the body portion 31 and the notch 32 is in an open state.
[0070] Combined Figures 9 to 11 As shown, in some embodiments of the present application, the first stopper portion 224 includes a first support plate 2241, the second stopper portion 225 includes a second support plate 2251. The other end of the first support plate 2241 and the other end of the second support plate 2251 are respectively parallel to the length direction of the notch 32. Along the direction from the gland 20 towards the valve body 10, the distance dimension between the first support plate 2241 and the second support plate 2251 gradually decreases. The first support plate 2241 and the second support plate 2251 can deform under an external force and press the body portion 31, and make the notch 32 in an open state.
[0071] Specifically, one ends of the first support plate 2241 and the second support plate 2251 away from the flow guide member 30 are spaced apart, and a conduction port 223 communicating with the flow guide channel 40 is formed therebetween, so that the liquid medium flowing into the flow guide channel 40 from the liquid inlet 231 acts on the main body portion 31 through the conduction port 223. At the same time, along the direction of the gland 20 towards the valve body 10, the distance dimension between the first support plate 2241 and the second support plate 2251 gradually decreases, so as to facilitate the intervention instrument to enter the flow guide channel 40 through the liquid inlet 231, and squeeze the first support plate 2241 and the second support plate 2251 to deform, and then squeeze the main body portion 31 to make the incision 32 in an open state. By arranging the other ends of the first support plate 2241 and the second support plate 2251 respectively parallel to the length direction of the incision 32, the first support plate 2241 and the second support plate 2251 can effectively squeeze the main body portion 31 on both sides of the length direction of the incision 32, so as to prevent the main body portion 31 from deforming when the liquid medium acts on the main body portion 31 along the direction of the liquid outlet 141 towards the liquid inlet 231.
[0072] In this embodiment, both the first support plate 2241 and the second support plate 2251 have certain support performance, and the gland body 21, the first support plate 2241 and the second support plate 2251 can be integrally formed.
[0073] Combined Figures 12 to 14 As shown, in some embodiments of the present application, one ends of the first stop portion 224 and the second stop portion 225 are respectively rotatably connected to the gland body 21, and a first support surface 2242 for fitting with the main body portion 31 is provided at the other end of the first stop portion 224, and a second support surface 2252 for fitting with the main body portion 31 is provided at the other end of the second stop portion 225.
[0074] Specifically, by fitting the first support surface 2242 and the second support surface 2252 respectively with the main body 31 on both sides of the length direction of the cutout 32, a greater support force can be provided for the main body 31, compared with the end of the first support plate 2241 and the end of the second support plate 2251 respectively abutting against the main body 31 on both sides of the length direction of the cutout 32, thereby preventing the main body 31 from deforming when the liquid medium acts on the main body 31 along the direction from the liquid outlet 141 to the liquid inlet 231. When no external force acts on the first stopper 224 and the second stopper 225, the first support surface 2242 and the second support surface 2252 are respectively arranged parallel to the main body 31, but do not completely block the guide channel 40, and the first stopper 224 and the second stopper 225 are respectively provided with a conducting port 223 with the guide channel 40, so that the liquid medium flowing from the liquid inlet 231 into the guide channel 40 acts on the main body 31 through the conducting port 223. When an interventional instrument 2 enters the diversion channel 40 through the liquid inlet 231, the first stopper 224 and the second stopper 225 rotate under the push of the interventional instrument and push the main body 31 on both sides of the length direction of the incision 32 to deform, so that the incision 32 is in an open state.
[0075] Combination Figures 12 to 14 As shown, in some embodiments of the present application, the pressure cover body 21 is provided with a first limiting protrusion 251 and a second limiting protrusion 252. When the guide member 30 is in the first state, the first limiting protrusion 251 abuts against the surface of the first stop portion 224 away from the guide member 30, and the second limiting protrusion 252 abuts against the surface of the second stop portion 225 away from the guide member 30.
[0076] By bringing the first limiting protrusion 251 into contact with the surface of the first stop portion 224 facing away from the guide member 30, and bringing the second limiting protrusion 252 into contact with the surface of the second stop portion 225 facing away from the guide member 30, when liquid medium acts on the main body 31 along the direction of the liquid outlet 141 toward the liquid inlet 231, the first stop portion 224 and the second stop portion 225 can be prevented from rotating under the blocking action of the first limiting protrusion 251 and the second limiting protrusion 252, thereby ensuring that the incision 32 is in a closed state.
[0077] Combination Figures 12 to 15As shown, in some embodiments of the present application, the end face of the gland body 21 facing the flow guide member 30 is provided with a first installation groove 261 and a second installation groove 262. One end of the first stop portion 224 is provided with a first rotating shaft 2243, and the first rotating shaft 2243 is rotatably arranged in the first installation groove 261. One end of the second stop portion 225 is provided with a second rotating shaft 2253, and the second rotating shaft 2253 is rotatably arranged in the second installation groove 262. The one-way valve 1 is further provided with a fixing member 50, and the fixing member 50 is connected to the gland body 21 and is used to limit the first rotating shaft 2243 and the second rotating shaft 2253 axially along the flow guide channel 40.
[0078] Specifically, the end face of the fixing member 50 facing the gland body 21 is provided with a mounting post 51, and the end face of the gland body 21 facing the fixing member 50 is provided with a mounting hole. The mounting post 51 can be inserted into the mounting hole and clamped, so as to realize the fixed connection between the fixing member 50 and the gland body 21. At the same time, an installation opening 52 is provided at the central position of the fixing member 50, and the opening area of the installation opening 52 is larger than the sum of the areas of the first support surface 2242 and the second support surface 2252. The first stop portion 224 and the second stop portion 225 can pass through the installation opening 52 during the rotation process, so as to be used to squeeze the body portion 31 to deform.
[0079] In some embodiments of the present application, the end face of the fixing member 50 facing the gland body 21 is further provided with a positioning protrusion, and the first rotating shaft 2243 and the second rotating shaft 2253 are respectively abutted against the positioning protrusion, so as to limit the positions of the first rotating shaft 2243 and the second rotating shaft 2253 in the installation groove and prevent the first rotating shaft 2243 and the second rotating shaft 2253 from shaking in the installation groove. Specifically, along the direction perpendicular to the length direction of the cut 32, positioning protrusions are respectively provided on the opposite sides of the installation opening 52 on the fixing member 50, and the positioning protrusions on any one side respectively include a first positioning protrusion 531 and a second positioning protrusion 532. The first positioning protrusion 531 and the second positioning protrusion 532 on one side respectively abut against the outer circumferential surfaces of the two ends of the first rotating shaft 2243, and the first positioning protrusion 531 and the second positioning protrusion 532 on the other side respectively abut against the outer circumferential surfaces of the two ends of the second rotating shaft 2253.
[0080] Combined with Figures 16 to 19 As shown, in the second aspect of the present application, a conveyor 100 is further proposed. The conveyor 100 includes the one-way valve 1 in any of the above embodiments. The conveyor 100 further includes a conveying member 3. A conveying cavity 60 is formed inside the conveying member 3. The one-way valve 1 is arranged on the outer side wall of the conveying member 3, and the liquid outlet 141 of the one-way valve 1 is communicated with the conveying cavity 60. Among them, the one-way valve 1 and the conveying member 3 are of a split structure and are connected, or the one-way valve 1 and the conveying member 3 are of an integral structure.
[0081] In one embodiment, the delivery member 3 includes a connecting member 4 and a tube body 5. The one-way valve 1 is connected to the tube body 5 through the connecting member 4. The connecting member 4 can be integrally formed with the one-way valve 1 or formed separately and then connected together. The tube body 5 is disposed within the connecting member 4, and the tube body 5 communicates with the delivery cavity 60. The delivery member 3 further includes a sealing valve 6. The sealing valve 6 is located at the proximal end of the delivery member 3, specifically at the proximal end of the connecting member 4. The sealing valve 6 includes a knob 61 and a gasket 62. A thread 63 is provided at the proximal end of the connecting member 4. The knob 61 is connected in cooperation with the thread 63. The gasket 62 is disposed between the knob 61 and the proximal end of the connecting member 4. An opening (not shown in the figure) is provided on the gasket 62 to facilitate the intervention instrument 2 to extend out from the proximal end of the connecting member 4. It can be understood that, in one embodiment, the intervention instrument 2 can be inserted through the proximal end of the connecting member 4, and the one-way valve 1 can be used for the exhaust operation.
[0082] In one embodiment, the delivery device 100 further includes a handle 7 and an outer sheath 8. The proximal end of the outer sheath 8 is connected to the handle 7. At least the distal end of the delivery member 3 is disposed within the handle 6. The distal end of the delivery member 3 is connected to the proximal end of the outer sheath 8, so that the delivery cavity 60 communicates with the inner cavity of the outer sheath 8, thereby facilitating the sequential delivery of the liquid medium or the intervention instrument 2 through the liquid inlet 231, the diversion channel 40, the liquid outlet 141, the delivery cavity 60, and the inner cavity of the outer sheath 8. In this embodiment, at least the distal end of the delivery member 3 being disposed within the handle 6 can specifically mean that the distal end of the tube body 5 is disposed within the handle 6.
[0083] By connecting the liquid outlet 141 of the one-way valve 1 to the delivery cavity 60 within the delivery member 3, when it is necessary to deliver the intervention instrument 2 through the delivery member 3 into the human body, a liquid medium can be input into the delivery cavity 60 of the delivery member 3 through the liquid inlet 231, so as to discharge the gas in the delivery cavity 60 of the delivery member 3. When a continuous and uninterrupted liquid medium is discharged from the delivery cavity 60 of the delivery member 3, it indicates that all the gas in the delivery cavity 60 has been discharged, and then the intervention instrument 2 can be delivered through the delivery member 3. Among them, the intervention instrument 2 can be inserted into the delivery member 3 through the liquid inlet 231, or the intervention instrument 2 can be inserted into the delivery member 3 through the proximal end of the delivery member 3. The one-way valve 1 and the delivery member 3 being a split structure and connected means that the valve body 10 of the one-way valve 1 and the delivery member 3 are processed and formed separately. When it is necessary to connect the one-way valve 1 and the delivery member 3, the valve body 10 can be assembled onto the delivery member 3. The one-way valve 1 and the delivery member 3 being an integral structure means that the valve body 10 of the one-way valve 1 and the delivery member 3 are integrally processed and formed, and the diversion member 30 and the gland 20 are assembled onto the valve body 10.
[0084] As described above, it is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims
1. A check valve, characterized in that, include: A valve body, wherein the valve body is provided with a liquid outlet; A gland, the gland is connected to the valve body, the gland is provided with a liquid inlet, and a guide channel is formed between the liquid inlet and the liquid outlet; A flow guide member, the flow guide member is arranged in the flow guide channel, the flow guide member comprises a main body and a cutout penetrating the main body along the axial direction of the flow guide channel, the cutout is used to communicate with the flow guide channel; The guide member has a first state in which it abuts against a portion of the gland and places the incision in a closed state, and the guide member also has a second state in which it separates from a portion of the gland under the action of an external force and places the incision in an open state.
2. The one-way valve according to claim 1, wherein A first groove is formed at one end of the main body facing the gland, and along the axial direction of the guide channel, the projection of the cutout is within the projection range of the first groove.
3. The one-way valve according to claim 2, characterized in that, A second groove is formed at one end of the main body away from the gland, and along the axial direction of the guide channel, the projection of the cutout is within the projection range of the second groove, and the projection area of the first groove is greater than the projection area of the second groove.
4. The one-way valve according to claim 1, characterized in that, The flow guide member is a rubber member or a silicone member.
5. The one-way valve according to any one of claims 1 to 4, characterized in that The gland includes a gland body and a stopper connected to each other. The stopper is arranged in the flow guide channel. When the flow guide is in the first state, it abuts against the stopper.
6. The one-way valve according to claim 5, characterized in that, The stopper comprises a stop block, and the flow guide member abuts against the stop block when in the first state, and the stop block covers at least a portion of the incision.
7. The one-way valve according to claim 5, characterized in that, The stop member includes a first stop portion and a second stop portion, one end of the first stop portion and one end of the second stop portion are respectively connected to the pressure cover body, and when the guide member is in the first state, the other end of the first stop portion and the other end of the second stop portion are respectively abutted against partial structures of the main body located on both sides of the length direction of the incision.
8. The one-way valve according to claim 7, wherein The first stop portion includes a first support plate, and the second stop portion includes a second support plate. The other end of the first support plate and the other end of the second support plate are respectively parallel to the length direction of the incision. Along the direction from the pressure cover to the valve body, the spacing between the first support plate and the second support plate gradually decreases. The first support plate and the second support plate can be deformed and squeeze the main body under the action of external force, and the incision is in an open state.
9. The one-way valve according to claim 7, wherein One end of the first stop portion and one end of the second stop portion are respectively connected to the pressure cover body in a rotatable manner, the other end of the first stop portion is provided with a first supporting surface for fitting with the main body, and the other end of the second stop portion is provided with a second supporting surface for fitting with the main body.
10. The one-way valve according to claim 9, characterized in that, The pressure cover body is provided with a first limiting protrusion and a second limiting protrusion. When the guide member is in the first state, the first limiting protrusion abuts against the surface of the first stop portion away from the guide member, and the second limiting protrusion abuts against the surface of the second stop portion away from the guide member.
11. The one-way valve according to claim 9, characterized in that, The end face of the gland body facing the flow guide member is provided with a first installation groove and a second installation groove. One end of the first stop portion is provided with a first rotating shaft, and the first rotating shaft is rotatably arranged in the first installation groove. One end of the second stop portion is provided with a second rotating shaft, and the second rotating shaft is rotatably arranged in the second installation groove. The one-way valve further includes a fixing member, and the fixing member is connected to the gland body and is used for limiting the first rotating shaft and the second rotating shaft axially along the flow guide channel.
12. A conveyor, characterized in that, Comprising the one-way valve according to any one of claims 1 to 11, the conveyor further includes a conveying member, and a conveying cavity is formed inside the conveying member. The one-way valve is arranged on the outer side wall of the conveying member, and the liquid outlet of the one-way valve is communicated with the conveying cavity. Wherein, the one-way valve and the conveying member are of a split structure and are connected, or the one-way valve and the conveying member are of an integral structure.
13. The conveyor according to claim 12, wherein The conveyor further includes a handle and an outer sheath tube. The proximal end of the outer sheath tube is connected to the handle. At least the distal end of the conveying member is arranged inside the handle, and the distal end of the conveying member is connected to the proximal end of the outer sheath tube, so that the conveying cavity is communicated with the inner cavity of the outer sheath tube.