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 hand-held part, an outer sheath tube extending from the hand-held part, and an inner connecting tube penetrating through the outer sheath tube and capable of controlling release of the artificial valve prosthesis; the hand-held part comprises a main cylinder and a sliding block connected with the inner connecting tube and capable of sliding relative to the main cylinder; a sliding groove for the sliding block to slide is arranged on the main cylinder, and the sliding block is located in the sliding groove; a progress prompting mechanism is arranged between the sliding groove and the sliding block. In the scheme, an operator can know the current relative position of the sliding block through the progress prompting mechanism, and then can perform more accurate release operation on the artificial valve prosthesis through the inner connecting tube, so that the safety of the operation can be improved.

Description

Technical Field

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

[0002] Currently, artificial mitral valve replacement surgery typically employs two approaches: transapical and transfemoral vein. Regardless of the approach used, extreme caution and meticulousness are required during the procedure, especially at critical points during valve deployment. Inaccurate positioning or misoperation can lead to serious consequences, even death. Therefore, it is essential for the surgeon to monitor the delivery process of the prosthetic valve through the delivery system to determine its precise location. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide an artificial valve prosthesis delivery device that can indicate the delivery progress of the artificial valve prosthesis.

[0004] The technical means adopted to solve the above-mentioned technical problems are as follows:

[0005] An artificial valve prosthesis delivery device includes a handheld part, an outer sheath extending from the handheld part, and an inner connecting tube penetrating the outer sheath and capable of controlling the release of the artificial valve prosthesis.

[0006] The handheld part includes a main cylinder and a sliding block that is connected to the inner connecting pipe and can slide relative to the main cylinder; the main cylinder is provided with a sliding groove for the sliding block to slide in, and the sliding block is located in the sliding groove; a progress indicator mechanism is provided between the sliding groove and the sliding block.

[0007] In the above scheme, through the process prompting mechanism set in the handheld part, when the sliding block moves in the sliding groove, the operator can know the current relative position of the sliding block through the process prompting mechanism, and then perform a more precise release operation on the artificial valve prosthesis through the inner connecting tube, thereby improving the safety of the surgery.

[0008] Furthermore, the process prompting mechanism includes a first prompting part and a plurality of second prompting parts, the plurality of second prompting parts being arranged along the sliding direction of the sliding block; as the sliding block slides, the first prompting part and the second prompting parts abut against each other or disengage from each other.

[0009] In the above implementation process, a first prompting part and a second prompting part are provided. Through the tactile changes generated when the first prompting part and the second prompting part come into contact with each other and when they separate from each other, the operator can be given more obvious and clear progress prompts and feedback.

[0010] Furthermore, the first prompting part is disposed on the sliding block, and a plurality of second prompting parts are disposed on the groove wall of the slide groove;

[0011] Alternatively, the first prompting part may be disposed on the groove wall of the slide, and a plurality of the second prompting parts may be disposed on the sliding block.

[0012] Furthermore, both the first prompting part and the second prompting part are protrusions provided on the groove wall of the sliding block or the sliding groove.

[0013] Furthermore, the first prompting part is a ball-head plunger disposed on the wall of the sliding block or the groove, and the second prompting part is a groove disposed on the wall of the groove or the sliding block.

[0014] Furthermore, it includes a valve prosthesis release assembly, the valve prosthesis release assembly including a distal end, the distal end being connected to the sliding block via the internal connecting tube, the distal end moving synchronously with the sliding block.

[0015] In the above implementation process, the distal end and the sliding block are connected by the internal connecting tube, thereby motionally associating the distal end with the sliding block; at this time, the progress prompting mechanism set between the slide and the sliding block can provide progress prompts on the positional changes of the distal end during the procedure, thereby facilitating the reduction of procedure risks.

[0016] The process prompting structure is disposed on the sliding contact surface between the sliding block and the sliding groove.

[0017] Furthermore, the main cylinder is provided with an adjusting member for driving the sliding block to slide, and the adjusting member is connected to the sliding block in a transmission connection.

[0018] In the above implementation process, the sliding movement of the sliding block can be driven and controlled by the adjustment component; at the same time, the tactile changes transmitted between the process prompting mechanisms can be transmitted to the operator's hand through the adjustment component.

[0019] Furthermore, the sliding block is embedded in the groove, and a threaded connection portion protrudes from the groove on the sliding block;

[0020] The adjusting member is rotatably mounted on the main cylinder, and the adjusting member has an internal thread. The adjusting member is threadedly connected to the sliding block.

[0021] In the above implementation process, the adjusting member and the sliding block are connected by a threaded transmission. Based on the characteristics of the threaded connection, the controllability of the sliding movement of the sliding block can be improved.

[0022] Furthermore, the sliding block has threaded connection portions protruding on both sides, and the threaded connection portions on both sides are threadedly connected to the adjusting member.

[0023] In the above implementation process, by providing threaded connection portions on both sides of the sliding block, the overall force on the sliding block can be more uniform when the adjusting member drives the sliding block to slide, and the coordination during the sliding movement can be better.

[0024] Furthermore, the second prompting section is provided in two locations. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a cross-sectional structural diagram of the artificial valve prosthesis delivery device for this applicant.

[0027] Figure 2 This is a schematic diagram of the external structure of the artificial valve prosthesis delivery device for this application.

[0028] Figure 3 This is a schematic diagram of the installation structure of each connecting pipe in this application.

[0029] Figure 4 This is a schematic cross-sectional view of the distal end of this application.

[0030] Figure 5 This is a front view structural diagram of the main cylinder of this application.

[0031] Figure 6 This is a top view of the main cylinder structure of this application.

[0032] Figure 7 This is a schematic diagram of the process prompting mechanism in one example of this application.

[0033] Figure 8 This is a schematic diagram of the process prompting mechanism in another instance of this application.

[0034] Marker explanation:

[0035] 1-Handheld part, 11-Main cylinder body, 111-Slide groove, 112-Groove, 12-Sliding block, 121-Protrusion, 122-Ball plunger, 123-Threaded connection part, 13-Adjusting part;

[0036] 2-Outer sheath, 3-Inner connecting tube;

[0037] 4-Valve prosthesis release assembly, 41-Distal end, 42-Valve carrier, 43-Proximal end;

[0038] 5-Middle connecting pipe, 6-Outer connecting pipe. Detailed Implementation

[0039] 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.

[0040] 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 to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] The terms "distal" and "proximal" are primarily used with reference to the operator. The end closer to the operator or further from the patient can be considered "proximal," while the end further from the operator or closer to the patient can be considered "distal."

[0042] like Figure 1-8As shown, this embodiment provides an artificial valve prosthesis delivery device, including a handheld part 1, an outer sheath 2, an inner connecting tube 3, and a valve prosthesis release assembly 4. One end of the outer sheath 2 is connected to the handheld part 1, and the other end extends from the distal end of the handheld part 1. The inner connecting tube 3 passes through the outer sheath 2, with its proximal end located within the handheld part 1. The valve prosthesis release assembly 4 is connected to the distal end of the inner connecting tube 3, and its operation is controlled via the inner connecting tube 3, thereby controlling the release of the artificial valve prosthesis. The valve prosthesis release assembly 4 is slidably disposed at the distal end of the outer sheath 2.

[0043] Furthermore, such as Figure 1 As shown, in this embodiment, the handheld part 1 includes a main cylinder 11, a sliding block 12, and an adjusting member 13. A groove 111 is provided on the main cylinder 11 for the sliding block 12 to slide within the groove 111 and to slide relative to the main cylinder 11. The proximal end of the inner connecting tube 3 is connected to the sliding block 12. The sliding of the sliding block 12 within the groove 111 synchronously drives the valve prosthesis release assembly 4 to move.

[0044] As a preferred option, such as Figure 3 As shown, in this embodiment, it also includes a middle connecting pipe 5 and an outer connecting pipe 6. The outer connecting pipe 6, the middle connecting pipe 5, and the inner connecting pipe 3 are arranged coaxially. The two ends of the middle connecting pipe 5 extend from the two ends of the outer connecting pipe 6, and the two ends of the inner connecting pipe 3 extend from the two ends of the middle connecting pipe 5.

[0045] The valve prosthesis release assembly 4 includes a distal end portion 41, a valve carrier 42, and a proximal end portion 43. The distal end of the inner connecting tube 3 is connected to the distal end portion 41; the proximal end of the middle connecting tube 5 is connected to the main body 11, and the distal end of the middle connecting tube 5 is connected to the valve carrier 42; the proximal end of the outer connecting tube 6 is connected to another sliding block, and the distal end of the outer connecting tube 6 is connected to the proximal end portion 43. In one application, by driving the sliding block 12 located on the proximal side of the main body 11 to slide, the distal end portion 41 can be moved towards the distal end, thereby disengaging from the valve carrier 42 to expose the valve carrier 42, thus facilitating the release of the artificial valve prosthesis.

[0046] In particular, in this embodiment, a process prompting mechanism is provided between the slide groove 111 and the sliding block 12, and the process prompting structure is provided on the sliding contact surface between the sliding block 12 and the slide groove 111.

[0047] The progress indication mechanism includes a first indication part and several second indication parts. The second indication parts are arranged along the sliding direction of the sliding block 12. As the sliding block 12 slides, the first and second indication parts abut or disengage from each other. Through the tactile changes generated when the first and second indication parts abut and disengage, the positional changes of the distal end 41 during surgery can be indicated, providing the operator with more obvious and clear progress feedback, thereby reducing surgical risks. This progress indication mechanism is particularly suitable for confirming the critical position of the prosthesis. For example, with the assistance of medical imaging equipment, the valve prosthesis release assembly 4 has largely reached the predetermined position, the proximal end 43 has moved proximally, and the proximal end of the prosthesis has been released. At this time, the distal end of the prosthesis is still contained within the distal end 41. Once the surgeon moves the distal end 41 distally using the handle, the prosthesis will be completely released. Once the prosthesis is completely released, it is difficult to retrieve. Therefore, the operator needs to be prompted before operating on the distal end 41 so that the operator can clearly perceive that the critical position has been reached and needs to carefully confirm whether the precise release position has been reached.

[0048] As a preferred embodiment, the first prompting part is disposed on the sliding block 12, and a plurality of the second prompting parts are disposed on the groove wall of the slide 111; in other application examples, the first prompting part may also be disposed on the groove wall of the slide 111, and a plurality of the second prompting parts may be disposed on the sliding block 12, without specific limitation here.

[0049] As one example of its application, such as Figure 7 As shown, the first prompting part is a protrusion 121 provided on the sliding block 12, and the second prompting part is a protrusion 121 provided on the groove wall of the slide groove 111; wherein, there are two protrusions 121 provided on the groove wall of the slide groove 111. The progress of the sliding block 12 is prompted and fed back through the mutual contact between the protrusions 121.

[0050] As one example of its application, such as Figure 8 As shown, the first prompting part is a ball-head plunger 122 disposed on the sliding block 12, and the second prompting part is a groove 112 disposed on the groove wall of the slide groove 111; wherein, there are two grooves 112. The progress of the sliding block 12 is prompted and fed back through the mutual contact or disengagement between the ball-head plunger 122 and the groove 112.

[0051] As one application example, the second prompt is set in two places, so that after the first prompt feedback, the operator can know that the current distal end 41 is in a relatively important position, and the process control needs to be more careful at this time; when the second prompt feedback is encountered, it means that the distal end 41 is in a limit position, and the movement of the distal end 41 to the distal end should no longer be controlled.

[0052] It is worth noting that, based on the same prompting and feedback principle, the number of the second prompting section can also be set to no less than two.

[0053] Furthermore, in this embodiment, the sliding block 12 is embedded in the slide groove 111 and has a portion protruding from the slide groove 111; wherein, the sliding block 12 protruding from the slide groove 111 is provided with a threaded connection portion 123.

[0054] As a preferred embodiment, threaded connection portions 123 protrude from both sides of the sliding block 12, such as... Figure 6 As shown.

[0055] The adjusting member 13 is rotatably mounted on the main cylinder 11. The adjusting member 13 is connected to the sliding block 12 for driving the sliding block 12 to slide. The adjusting member 13 can drive and control the sliding movement of the sliding block 12; at the same time, the tactile changes transmitted between the process indicator mechanisms can be transmitted to the operator's hand through the adjusting member 13.

[0056] As a preferred embodiment, in this embodiment, an internal thread is provided in the adjusting member 13, and the adjusting member 13 and the sliding block 12 are connected by the threaded connection part 123 and the internal thread to achieve threaded transmission connection.

[0057] As a preferred embodiment, in this embodiment, the adjusting member 13 is a cylindrical structure. In the installed state, the threaded connection portions 123 on both sides of the sliding block 12 are threadedly connected to the adjusting member 13, so that when the adjusting member 13 drives the sliding block 12 to slide, the overall force on the sliding block 12 can be more uniform, and the coordination during the sliding movement can be better.

[0058] In this embodiment, the adjusting member 13 and the sliding block 12 are connected by a threaded transmission. Based on the characteristics of the threaded connection, which is suitable for fine adjustment and has a certain self-locking function, the controllability of the sliding movement of the sliding block 12 can be improved.

[0059] 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.

[0060] 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 hand-held part, an outer sheath extending from the hand-held part, and an inner connecting tube that passes through the outer sheath and can control the release of the artificial valve prosthesis; The handheld part includes a main cylinder and a sliding block that is connected to the inner connecting pipe and can slide relative to the main cylinder; the main cylinder is provided with a sliding groove for the sliding block to slide in, and the sliding block is located in the sliding groove; a progress indicator mechanism is provided between the sliding groove and the sliding block. The process prompting mechanism includes a first prompting part and a plurality of second prompting parts, the plurality of second prompting parts being arranged along the sliding direction of the sliding block; as the sliding block slides, the first prompting part and the second prompting parts abut against each other or disengage from each other; The first prompting part is disposed on the sliding block, and a plurality of second prompting parts are disposed on the groove wall of the slide groove; Alternatively, the first prompting part is disposed on the groove wall of the slide, and a plurality of the second prompting parts are disposed on the sliding block; Both the first and second prompting parts are protrusions provided on the groove wall of the sliding block or the sliding groove; or, The first prompting part is a ball-head plunger provided on the groove wall of the sliding block or the sliding groove, and the second prompting part is a groove provided on the groove wall of the sliding groove or the sliding block; The main cylinder is provided with an adjusting component for driving the sliding block to slide, and the adjusting component is connected to the sliding block in a transmission connection.

2. The artificial valve prosthesis delivery device according to claim 1, characterized in that, The device includes a valve prosthesis release assembly, which includes a distal end portion connected to the sliding block via an internal connecting tube. The distal end portion moves synchronously with the sliding block.

3. The artificial valve prosthesis delivery device according to claim 1, characterized in that, The sliding block is embedded in the slide groove, and a threaded connection portion protruding from the slide groove is provided on the sliding block; The adjusting member is rotatably mounted on the main cylinder, and the adjusting member has an internal thread. The adjusting member is threadedly connected to the sliding block.

4. The artificial valve prosthesis delivery device according to claim 3, characterized in that, The sliding block has threaded connection portions protruding on both sides, and the threaded connection portions on both sides are threadedly connected to the adjusting component.

5. The artificial valve prosthesis delivery device according to claim 1 or 4, characterized in that, The second prompt section is provided in two locations.

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