Prosthetic valve prosthesis delivery device

Abstract

The application belongs to the technical field of interventional medical instruments, and provides an artificial valve prosthesis conveying device, which comprises a handle part, a valve prosthesis containing assembly, a first pipe body in sealed connection with the valve prosthesis containing assembly, a second pipe body extending in the first pipe body and penetrating through the first pipe body, and a third pipe body extending in the second pipe body and penetrating through the second pipe body; a first sealing piece for preventing the distal end of the first pipe body from taking in air is arranged in the valve prosthesis containing assembly, a second sealing piece for preventing the proximal end of the second pipe body from taking in air is arranged between the second pipe body and the handle part, and a third sealing piece for preventing the proximal end of the third pipe body from taking in air is arranged in the handle part. According to the scheme, the emptying operation of the artificial valve prosthesis conveying device can be simpler and more reliable, and the operation safety can be improved.

Description

Technical Field

[0001] This application belongs to the field of interventional medical device technology, and specifically relates to an artificial valve prosthesis delivery device. Background Technology

[0002] The heart is a vital organ that powers blood circulation. It is divided into two parts, left and right, each containing a ventricle and an atrium. The ventricles and atria are separated by the interventricular septum and interatrial septum. There are valves between the atria, ventricles, and arteries to prevent backflow of blood. The valve located between the left atrium and left ventricle is the mitral valve. Any change in any normal structure of the mitral valve can cause valvular disease.

[0003] Mitral regurgitation is the most common type of mitral valve disease. An artificial mitral valve can be introduced into the patient via catheter, a minimally invasive interventional procedure. This surgery does not require open-chest surgery, resulting in minimal trauma and rapid recovery. During the implantation of an artificial heart valve, a specific interventional delivery device is typically used to deliver the valve to the designated site for release. When using this delivery device, it is crucial to purge air from the device and prevent external air from entering the body through any gaps. Therefore, ensuring proper evacuation and sealing of the delivery device are critical issues that interventional valve transplantation systems must address. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide an artificial valve prosthesis delivery device that can improve the sealing performance.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] An artificial valve prosthesis delivery device includes a handle, a valve prosthesis receiving assembly, a first tube body sealed and connected to the valve prosthesis receiving assembly, a second tube body extending into and penetrating the first tube body, and a third tube body extending into and penetrating the second tube body.

[0007] The valve prosthesis receiving assembly is provided with a first seal to prevent air from entering the distal end of the first tube, a second seal to prevent air from entering the proximal end of the second tube between the second tube and the handle, and a third seal to prevent air from entering the proximal end of the third tube inside the handle.

[0008] In this design, a first seal is provided within the valve prosthesis receiving assembly to prevent air from entering the distal end of the first tube, thus preventing air from entering the valve prosthesis receiving assembly from between the first and second tubes. A second seal is provided at the proximal end of the second tube, and a third seal is provided at the proximal end of the third tube, thereby preventing gas from entering the valve prosthesis receiving assembly from between the second and third tubes, or from the interior of the third tube. During use, liquid is simply injected into the proximal end of the third tube; the evacuation operation is completed when the liquid overflows from the valve prosthesis receiving assembly, making the evacuation operation simpler, more reliable, and improving surgical safety.

[0009] Furthermore, the valve prosthesis receiving assembly includes a distal end, a proximal end, and a valve carrier, wherein the distal end and the proximal end are joined together to form a receiving cavity, and the valve carrier is disposed within the receiving cavity;

[0010] The distal end of the first tube is connected to the proximal end, the distal end of the second tube is connected to the valve carrier, and the distal end of the third tube is connected to the distal end.

[0011] In the above implementation process, the formed receiving cavity facilitates the placement of the valve carrier and provides a certain degree of protection for the artificial valve prosthesis mounted on the valve carrier.

[0012] Furthermore, the second tube and / or the third tube located within the receiving cavity are provided with a plurality of perforated holes.

[0013] In the above implementation process, the hollowed-out holes can further facilitate the emptying operation of the receiving cavity.

[0014] Furthermore, the distal end is provided with a first overflow port that communicates with the outside, and the first overflow port is connected to the third pipe body.

[0015] In the above implementation process, the first overflow port is designed to facilitate the overflow of liquid from the distal end of the third tube during the dredging operation.

[0016] Furthermore, an overflow hole is provided at the proximal end.

[0017] In the above implementation process, the overflow hole can facilitate the emptying operation of the internal space of the proximal end.

[0018] Furthermore, a first fastener is provided on the proximal end, and the relative position between the first fastener and the proximal end is adjustable;

[0019] The first seal is sandwiched between the first fastener and the proximal end.

[0020] In the above implementation process, the first sealing element can form a sealed connection between the first tube and the second tube, preventing external gas from entering the valve prosthesis receiving assembly from between the first tube and the second tube.

[0021] Furthermore, an inner cylinder is provided inside the handle portion, the proximal end of the second tube is sealed to the inner cylinder, and the second sealing element is disposed inside the inner cylinder;

[0022] The inner cylinder is also provided with a second fastener, the relative position between the second fastener and the inner cylinder is adjustable, and the second sealing element is clamped between the second fastener and the inner cylinder.

[0023] In the above implementation process, by setting the second fastener, the installation and use status of the second seal can be made more stable, avoiding the impact of pressure and other unexpected situations on the second seal.

[0024] Furthermore, a second connecting block is also provided inside the inner cylinder, the proximal end of the third tube is sealed to the second connecting block, and the third sealing element is provided inside the second connecting block;

[0025] The second connecting block is also provided with a third fastener, the relative position between the third fastener and the second connecting block is adjustable, and the third sealing element is clamped between the third fastener and the second connecting block.

[0026] In the above implementation process, by setting the third fastener, the installation and use of the third seal can be made more stable, avoiding the impact of pressure and other unexpected situations on the third seal.

[0027] Furthermore, it includes an external access pipe, which passes through the third seal and is connected to the third pipe body;

[0028] The external access pipe is sealed to the third sealing element.

[0029] In the above implementation process, the external access pipe is provided to facilitate the injection of liquid during the evacuation operation.

[0030] Furthermore, an outer tube extends from the handle portion, and the valve prosthesis receiving assembly is slidably partially inserted into the outer tube;

[0031] A fourth seal is provided between the valve prosthesis receiving assembly and the outer tube.

[0032] In the above implementation process, the fourth sealing element can achieve a sliding seal between the valve prosthesis receiving assembly and the outer tube, preventing external gas from entering the patient's body through the gap between the valve prosthesis receiving assembly and the outer tube. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a cross-sectional structural diagram of the artificial valve prosthesis delivery device for this applicant.

[0035] Figure 2 This is a schematic diagram showing the release states of the artificial valve prosthesis delivery device applied for by this applicant.

[0036] Figure 3 This is a schematic diagram of the installation structure of each pipe body in this application.

[0037] Figure 4 for Figure 1 A magnified structural diagram of point A in the middle.

[0038] Figure 5 for Figure 1 A magnified structural diagram at point B in the middle.

[0039] Figure 6 for Figure 1 A magnified structural diagram at point C.

[0040] Figure 7 for Figure 1 A magnified structural diagram at point D.

[0041] Figure 8 This is a schematic diagram of the structure of the distal end of this application.

[0042] Figure 9 This is a schematic diagram of the inner cylinder of this application.

[0043] Marker explanation:

[0044] 1-Handle part, 11-Inner cylinder, 111-Slide groove, 12-First connecting block, 121-First adjusting member, 122-Protrusion, 13-Second connecting block, 131-Second adjusting member, 132-Third fastener, 14-Outer cylinder, 15-Rotating member, 16-Second fastener;

[0045] 2-Valve prosthesis receiving assembly, 20-Receiving cavity, 21-Distal end, 211-First overflow port, 22-Proximal end, 221-First fastener, 222-Overflow hole, 23-Valve carrier, 24-Perforated hole;

[0046] 3-first pipe body, 31-first seal;

[0047] 4-second pipe body, 41-second seal;

[0048] 5-third pipe body, 51-third seal;

[0049] 6-Outer tube, 61-Fourth seal;

[0050] 7-External access pipe. Detailed Implementation

[0051] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0052] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. Similar reference numerals and letters denote similar items in the following figures; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. The terms "distal" and "proximal" are primarily used with reference to the operator; that is, the end closer to the practitioner or farther from the patient can be considered "proximal," while the end farther from the practitioner or closer to the patient can be considered "distal."

[0053] like Figure 1-9 As shown, this embodiment provides an artificial valve prosthesis delivery device, including a handle part 1, a valve prosthesis receiving assembly 2, a first tube 3, a second tube 4, a third tube 5, and an outer tube 6.

[0054] As one example of its application, such as Figure 1As shown, the handle portion 1 includes an inner cylinder 11, a first connecting block 12, a second connecting block 13, a first adjusting member 121, and a second adjusting member 131. In this embodiment, the first connecting block 12 and the second connecting block 13 are both mounted on the inner cylinder 11, and the first connecting block 12 can slide relative to the inner cylinder 11, and the second connecting block 13 can slide relative to the inner cylinder 11.

[0055] like Figure 2 As shown, both the first adjusting member 121 and the second adjusting member 131 are rotatably mounted on the inner cylinder 11 relative to the inner cylinder 11. The first adjusting member 121 is tractively connected to the first connecting block 12, so that rotating the first adjusting member 121 drives the first connecting block 12 to slide within the inner cylinder 11. Similarly, the second adjusting member 131 is tractively connected to the second connecting block 13, so that rotating the second adjusting member 131 drives the second connecting block 13 to slide within the inner cylinder 11.

[0056] As a preferred option, such as Figure 9 As shown, both the first connecting block 12 and the second connecting block 13 are provided with a plurality of protrusions 122. In this embodiment, the protrusions 122 are symmetrically arranged on both sides of the first connecting block 12 or the second connecting block 13, and a threaded structure is provided on the protrusions 122. In addition, a plurality of sliding grooves 111 for providing sliding space are provided on the inner cylinder 11. The first connecting block 12 and the second connecting block 13 are respectively installed on different sliding grooves 111, and the protrusions 122 protrude from the sliding grooves 111. Threaded structures are also provided on the inner sides of the first adjusting member 121 and the second adjusting member 131. The first adjusting member 121 is threadedly connected to the first connecting block 12, and the second adjusting member 131 is also threadedly connected to the second connecting block 13.

[0057] Furthermore, such as Figure 5 As shown, a large-distance adjustment assembly is also provided at the distal end of the inner cylinder 11. The large-distance adjustment assembly includes an outer cylinder 14 and a rotating component 15, which is rotatably mounted on the outer cylinder 14. The inner cylinder 11 extends into the outer cylinder 14 and has a threaded structure on its outer surface. The rotating component 15 also has a threaded structure on its inner surface. The rotating component 15 and the inner cylinder 11 are connected by a threaded drive. By rotating the rotating component 15, the relative positional distance between the inner cylinder 11 and the outer cylinder 14 can be adjusted.

[0058] like Figure 2 , Figure 8 As shown, the valve prosthesis receiving assembly 2 includes a distal end 21, a proximal end 22, and a valve carrier 23. The distal end 21 and the proximal end 22 are joined together to form a receiving cavity 20, and the valve carrier 23 is disposed in the receiving cavity 20. The receiving cavity 20 facilitates the placement of the valve carrier 23 and provides a certain degree of protection for the artificial valve prosthesis mounted on the valve carrier 23.

[0059] like Figure 5 As shown, in this embodiment, the proximal end of the first tube 3 is connected to the first connecting block 12, and the distal end of the first tube 3 is sealed to the proximal end 22, so that when the first connecting block 12 slides, the proximal end 22 can be moved in position synchronously.

[0060] The second tube 4 is disposed through the first tube 3, and both ends of the second tube 4 extend from both ends of the first tube 3. In this embodiment, a first sealing element 31 is provided between the far end of the first tube 3 and the second tube 4. Here, the first sealing element 31 is in the form of a sealing ring.

[0061] As a preferred embodiment, a first fastener 221 is detachably provided on the proximal end 22. In this embodiment, the first fastener 221 is threadedly provided on the proximal end 22 so that the relative position between the first fastener 221 and the proximal end 22 can be adjusted. The distal end of the first tube 3 is connected to the first fastener 221.

[0062] The first sealing element 31 is sandwiched between the first fastener 221 and the proximal end 22, such as Figure 4 As shown, the first sealing element 31 can form a sealed connection between the first tube 3 and the second tube 4, preventing external gas from entering the valve prosthesis receiving assembly 2 from between the first tube 3 and the second tube 4.

[0063] Furthermore, such as Figure 6 As shown, the proximal end of the second tube 4 is sealed within the inner cylinder 11 and located between the first connecting block 12 and the second connecting block 13. The inner cylinder 11 is provided with a second sealing element 41 to prevent air from entering the proximal end of the second tube 4. In this embodiment, the second sealing element 41 is a gasket structure.

[0064] As a preferred embodiment, a second fastener 16 is further provided inside the inner cylinder 11. For example, the second fastener 16 is threadedly disposed inside the inner cylinder 11, so that the relative position between the second fastener 16 and the inner cylinder 11 is also adjustable. The second seal 41 is then clamped between the second fastener 16 and the inner cylinder 11. The provision of the second fastener 16 allows for a more stable installation and use of the second seal 41, preventing pressure and other unexpected situations from affecting the second seal 41.

[0065] like Figure 8 As shown, the distal end of the second tube 4 extends into the receiving cavity 20, and the valve carrier 23 is located at the distal end of the second tube 4. As a preferred embodiment, a plurality of perforated holes 24 are formed on the side wall of the second tube 4 within the receiving cavity 20, which facilitates the rapid drainage of liquid from the second tube 4.

[0066] Furthermore, the third tube 5 is disposed through the second tube 4, and both ends of the third tube 5 extend toward the two ends of the second tube 4; in this embodiment, the proximal end of the third tube 5 protrudes from the second sealing member 41, and the third tube 5 and the second sealing member 41 are sealed together.

[0067] like Figure 7 As shown, the proximal end of the third tube 5 is sealed to the second connecting block 13, and the second connecting block 13 is provided with a third sealing element 51 to prevent air from entering the proximal end of the third tube 5. In this embodiment, the third sealing element 51 is a gasket structure.

[0068] As a preferred embodiment, a third fastener 132 is also provided within the second connecting block 13. For example, the third fastener 132 is threadedly disposed within the second connecting block 13, so that the relative position between the third fastener 132 and the second connecting block 13 is also adjustable. The third seal 51 is then sandwiched between the third fastener 132 and the second connecting block 13. The provision of the third fastener 132 allows for a more stable installation and use of the third seal 51, preventing pressure and other unexpected situations from affecting the third seal 51.

[0069] As a preferred embodiment, this embodiment also includes an external access pipe 7. As one application example, the external access pipe 7 is a luer connector. In use, the connector end of the luer connector is located outside the conveying device to facilitate the injection of liquid for venting. The other end of the luer connector passes through the third sealing member 51 and is inserted into the third pipe body 5. At this time, the third sealing member 51 and the luer connector are also sealed together.

[0070] The distal end of the third tube 5 is connected to the distal end 21, so that when the second connecting block 13 slides, it can drive the distal end 21 to move in position.

[0071] As a preferred embodiment, in this embodiment, a first overflow port 211 is provided in a hollow manner on the distal end 21. The first overflow port 211 connects the third tube 5 with the outside, so that when the venting operation is performed, the liquid inside the third tube 5 can easily overflow from the first overflow port 211.

[0072] As a preferred embodiment, the third tube 5 located in the receiving cavity 20 is also provided with a plurality of the hollow holes 24. Through the hollow holes 24, the interior of the third tube 5 and the second tube 4 can be directly connected to the receiving cavity 20, so that when the emptying operation is performed, the liquid can first fill the receiving cavity.

[0073] Furthermore, in this embodiment, when the length of the proximal end portion 22 is relatively long, a plurality of overflow holes 222 can be provided on the proximal end portion 22 at the end away from the distal end portion 21, such as... Figure 4 As shown, this facilitates the emptying operation of the internal space of the proximal end 22, at which time liquid can overflow from the overflow hole 222.

[0074] The proximal end of the outer tube 6 is connected to the handle portion 1, and the distal end of the outer tube 6 is extended. The valve prosthesis receiving assembly 2 is slidably inserted into the outer tube 6. When the rotating member 15 is rotated so that the inner cylinder 11 slides relative to the outer cylinder 14, the inner cylinder 11 simultaneously drives the first connecting block 12 and the second connecting block 13 to move relative to each other. The first tube 3, the second tube 4, and the third tube 5 also move relative to each other synchronously. At this time, the entire valve prosthesis receiving assembly 2 can be slid relative to each other within the outer tube 6, thereby achieving rapid position adjustment.

[0075] As a preferred embodiment, a fourth sealing element 61 is provided between the proximal end 22 and the outer tube 6. The fourth sealing element can be in the form of a sealing ring. By providing the fourth sealing element 61, a sliding seal can be achieved between the proximal end 22 and the outer tube 6, preventing external gas from entering the patient's body through the gap between the valve prosthesis receiving assembly 2 and the outer tube 6.

[0076] In use, this solution only requires injecting liquid, such as saline solution, into the proximal end of the external access tube 7. At this time, the external access tube 7 is sealed with the third sealing member 51, the proximal end of the third tube body 5 is also sealed through the third sealing member 51, the third tube body 5 is sealed with the second sealing member 41, the proximal end of the second tube body 4 is also sealed through the second sealing member 41, and the first tube body 3 and the second tube body 4 are sealed through the first sealing member 31. Furthermore, the first tube body 3 and the proximal end 22 are sealed together, so that the injected liquid can quickly fill the sealed space formed by each sealing member, then concentrate in the receiving cavity 20, and overflow from the overflow hole 222, the junction between the proximal end 22 and the distal end 21, and the first drain port 211. At this time, the emptying operation can be completed, making the emptying operation simpler and more reliable, thereby improving the safety of the procedure.

[0077] The above description is merely a specific embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should also be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0078] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An artificial valve prosthesis delivery device, characterized in that, It includes a handle portion, a valve prosthesis receiving assembly, a first tube body that is sealed and connected to the valve prosthesis receiving assembly, a second tube body that extends into and penetrates the first tube body, and a third tube body that extends into and penetrates the second tube body. The valve prosthesis receiving assembly is provided with a first seal to prevent air from entering the distal end of the first tube, a second seal to prevent air from entering the proximal end of the second tube between the second tube and the handle, and a third seal to prevent air from entering the proximal end of the third tube in the handle. The valve prosthesis receiving assembly includes a distal end, a proximal end, and a valve carrier. The distal end and the proximal end are joined together to form a receiving cavity, and the valve carrier is disposed within the receiving cavity. The distal end of the first tube is connected to the proximal end, the distal end of the second tube is connected to the valve carrier, and the distal end of the third tube is connected to the distal end. The second tube and / or the third tube located within the receiving cavity are provided with a plurality of perforated holes; the distal end is provided with a first overflow port communicating with the outside, and the first overflow port is connected to the third tube.

2. The artificial valve prosthesis delivery device according to claim 1, characterized in that, An overflow hole is provided at the proximal end.

3. The artificial valve prosthesis delivery device according to claim 1 or 2, characterized in that, A first fastener is provided on the proximal end, and the relative position between the first fastener and the proximal end is adjustable; The first seal is sandwiched between the first fastener and the proximal end.

4. The artificial valve prosthesis delivery device according to claim 3, characterized in that, The handle portion is provided with an inner cylinder, the proximal end of the second tube is sealed to the inner cylinder, and the second sealing element is disposed in the inner cylinder; The inner cylinder is also provided with a second fastener, the relative position between the second fastener and the inner cylinder is adjustable, and the second sealing element is clamped between the second fastener and the inner cylinder.

5. The artificial valve prosthesis delivery device according to claim 4, characterized in that, The inner cylinder is also provided with a second connecting block, the proximal end of the third tube is sealed to the second connecting block, and the third sealing element is provided inside the second connecting block; The second connecting block is also provided with a third fastener, the relative position between the third fastener and the second connecting block is adjustable, and the third sealing element is clamped between the third fastener and the second connecting block.

6. The artificial valve prosthesis delivery device according to claim 5, characterized in that, Includes an external access pipe, which passes through the third seal and is connected to the third pipe body; The external access pipe is sealed to the third sealing element.

7. The artificial valve prosthesis delivery device according to claim 1 or 6, characterized in that, An outer tube extends from the handle portion, and the valve prosthesis receiving assembly is slidably partially inserted into the outer tube; A fourth seal is provided between the valve prosthesis receiving assembly and the outer tube.

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