Fishing ring delivery device

Abstract

The present invention discloses a fishing ring delivery device, comprising: an operating handle having a head end and a tail end, the operating handle having a delivery channel extending from the head end to the tail end; a pusher mounted in the delivery channel of the operating handle, the pusher being capable of being pulled and moved within the delivery channel; a distal release member mounted at the head end of the operating handle, the distal release member having a first clamping portion for clamping with a second clamping portion of the fishing ring to limit the fishing ring in the longitudinal extension direction and circumferential direction of the pusher; the distal release member having a first through hole, the fishing ring having a second through hole; when the first clamping portion is clamped with the second clamping portion, the first through hole corresponds to the second through hole, the pusher passes through the first through hole and the second through hole to limit the fishing ring in the longitudinal direction perpendicular to the pusher. The device can accurately and efficiently install the fishing ring and can improve the repeatability of the fishing ring installation.

Description

Technical Field

[0001] The present invention relates to the medical field, and further to a fishing ring delivery device. Background Art

[0002] Currently, in order to enhance the radial support force provided by the native leaflets to the valve stent and to firmly fix the valve stent to the leaflets, it is usually necessary to add a capture ring to the outside of the leaflet, which can embrace the leaflet and the stent together.

[0003] During the implantation of a capture ring, a capture ring delivery device is usually required. The traditional capture ring implantation process is relatively complicated, especially the process of fixing and releasing the capture ring, which is often unable to adapt to the repetitive operations that may occur during the surgery.

[0004] In summary, there is a need to improve the traditional fishing ring delivery device. Summary of the Invention

[0005] In view of the above technical problems, an object of the present invention is to provide a fishing ring delivery device, which can accurately and efficiently install the fishing ring and improve the repeatability of the fishing ring installation.

[0006] In order to achieve the above object, the present invention provides a fishing ring delivery device, characterized in that it includes:

[0007] an operating handle having a head end and a tail end, wherein the operating handle has a delivery channel extending from the head end to the tail end;

[0008] a pushing member, mounted on the delivery channel of the operating handle, and capable of being pulled to move within the delivery channel;

[0009] a distal release member mounted on the head end of the operating handle, the distal release member having a first clamping portion for clamping with the second clamping portion of the fishing ring to limit the fishing ring in the longitudinal extension direction and circumferential direction of the pushing member;

[0010] The distal release member has a first through hole, and the fishing ring has a second through hole. When the first clamping portion is engaged with the second clamping portion, the first through hole corresponds to the second through hole, and the pushing member can move forward along the delivery channel through the first through hole and the second through hole to limit the fishing ring in a length direction perpendicular to the pushing member.

[0011] In some preferred embodiments of the present invention, the distal release member includes a first base and a first card body, and the first card body and the first base are surrounded to form a first card slot; the fishing ring includes a second base and a second card body, and the second card body and the second base are surrounded to form a second card slot; the first card body is detachably mounted on the second card slot, and the second card body is detachably mounted on the first card slot, and the first card body is clamped to the second card body.

[0012] In some preferred embodiments of the present invention, a surface of the first card body facing the first substrate is an inclined surface, and a surface of the second card body facing the second substrate is also an inclined surface.

[0013] In some preferred embodiments of the present invention, the distal release member includes a first planar end located between the first base and the first card body; the fishing ring includes a second planar end located between the second base and the second card body; the top end of the first card body can contact the second planar end, and the top end of the second card body can contact the first planar end.

[0014] In some preferred embodiments of the present invention, the first card body of the distal release member has an embracing groove, and an inner core is provided between the second card body and the second base of the fishing ring, and the embracing groove surrounds the inner core so that the axis of the distal release member and the axis of the fishing ring are aligned.

[0015] In some preferred embodiments of the present invention, the operating handle includes a base, a tailstock, a fixing member, a limiting member and a fixing cap, the base has an installation cavity, and both ends of the base are open; the fixing member has a fixing channel, and the pushing member is installed in the fixing channel; the limiting member is installed in the installation cavity of the base, the tailstock is detachably installed on the limiting member, the fixing member is installed between the limiting member and the tailstock, and the pushing member extends outward through the limiting member; the fixing cap is detachably installed on the base, and one end of the fixing cap connected to the base contacts the limiting member to fix the limiting member to the base.

[0016] In some preferred embodiments of the present invention, the operating handle further includes an elastic member, which is mounted on the bottom wall of the tailstock, and the elastic member is located between the bottom wall of the tailstock and the fixing member, and is used to provide thrust to the fixing member to eliminate the length difference between the extension tube and the fixing member during use.

[0017] In some preferred embodiments of the present invention, the bottom wall of the tailstock has a fixing protrusion, and the elastic member is fixedly mounted on the fixing protrusion.

[0018] In some preferred embodiments of the present invention, the operating handle further includes a top seat, which is detachably mounted on an end of the base away from the tail stock; the operating handle further includes an extension tube mounted on the top seat, the pushing member extends outward through the extension tube, and the distal release member is mounted on an end of the extension tube away from the top seat.

[0019] In some preferred embodiments of the present invention, a storage cavity is provided between the top end of the limiting member of the operating handle and the inner wall boss of the base, and a preset position of the base has an opening communicating with the storage cavity.

[0020] The fishing ring delivery device provided by the present invention has at least one of the following beneficial effects:

[0021] 1. The distal release member of the fishing ring delivery device provided by the present invention can quickly engage with the fishing ring and effectively limit the position of the fishing ring, thereby enabling accurate and efficient installation of the fishing ring and improving the repeatability of the installation of the fishing ring.

[0022] 2. The catch ring delivery device provided by the present invention features a tailstock mounted outside the fixing member, preventing accidental contact with the fixing member during use and enhancing operational safety. An elastic member positioned between the tailstock and the fixing member provides thrust to the fixing member, eliminating any length discrepancies between the extension tube and the fixing member during use. This effectively enhances the stability of the connection between the distal release member and the catch ring.

[0023] 3. The inner wall of the base of the fishing ring delivery device provided by the present invention has an anti-rotation groove, and the outer side of the limiting member has an anti-rotation protrusion. When the limiting member is installed in the installation cavity of the base, the anti-rotation protrusion can be installed in the anti-rotation groove, thereby effectively preventing the limiting member from rotating in the installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0025] Figure 1 is a perspective view of a fishing ring delivery device according to a preferred embodiment of the present invention;

[0026] Figure 2 is an exploded view of a capture ring delivery device according to a preferred embodiment of the present invention;

[0027] Figure 3 is an AA cross-sectional view of a fishing ring delivery device according to a preferred embodiment of the present invention;

[0028] Figure 4Ais an enlarged view of point B of the fishing ring delivery device according to a preferred embodiment of the present invention;

[0029] Figure 4B is a perspective view of a base of a fishing ring delivery device according to a preferred embodiment of the present invention;

[0030] Figure 5 is a perspective view of a distal release member of a fishing ring delivery device according to a preferred embodiment of the present invention;

[0031] Figure 6 is a perspective view of a distal release member of a fishing ring delivery device according to a preferred embodiment of the present invention;

[0032] Figure 7 Schematic diagram of a state in which a distal release member of a fishing ring delivery device and a fishing ring are engaged with each other in a preferred embodiment of the present invention;

[0033] Figure 8 is a schematic diagram of a fishing ring delivery device according to a preferred embodiment of the present invention, in which a distal release member and the fishing ring are separated;

[0034] Figure 9 is a perspective view of a modified embodiment of a distal release member of a fishing ring delivery device according to a preferred embodiment of the present invention;

[0035] Figure 10 It is a perspective view of a modified embodiment of the distal end release member of the fishing ring delivery device of the preferred embodiment of the present invention.

[0036] Description of Figure Numbers:

[0037] 1 operating handle, 2 pushing member, 3 distal release member, 200 fishing ring, 11 head end, 12 tail end, 10 delivery channel, 13 fixing member, 14 base, 15 tail seat, 16 top seat, 17 elastic member, 18 limiting member, 19 fixing cap, 41 extension tube, 31 first through hole, 32 first clamping portion, 33 first clamping groove, 34 first base, 35 first card body, 36 first plane end, 201 second through hole, 202 second clamping portion, 203 second clamping groove, 204 second base, 205 second card body, 206 second plane end, 207 inner core, 130 fixing channel, 140 installation cavity, 151 fixing protrusion, 351 first inclined surface, 350 embracing groove, 2051 second inclined surface, 141 anti-rotation groove, 181 anti-rotation protrusion, 43 storage cavity, 44 opening, 45 first sealing ring, 46 second sealing ring, 47 protective cover. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0039] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0040] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0041] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0042] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Example

[0043] Reference Manual Figures 1 to 10 The present invention provides a capture ring delivery device for delivering a capture ring to a desired location, including but not limited to the leaflets of the mitral valve, and then releasing the capture ring so that it is precisely encircled outside the leaflets. The capture ring delivery device provides simple and efficient placement and release of the capture ring, offering simple operation and high repeatability.

[0044] Reference Manual Figure 1 and Figure 2 The fishing ring delivery device includes an operating handle 1, a pushing member 2 and a distal release member 3.

[0045] The operating handle 1 has a head end 11 and a tail end 12 , and a delivery channel 10 is defined inside the operating handle 1 . The delivery channel 10 extends from the head end 11 to the tail end 12 of the operating handle 1 .

[0046] The pushing member 2 is installed in the delivery channel 10 and is movable in the delivery channel 10 along the length extension direction of the delivery channel 10 .

[0047] The distal release member 3 is mounted on the head end 11 of the operating handle 1 and has a first through hole 31 corresponding to the delivery channel 10 , through which the pusher 2 can extend outward. The distal release member 3 also has a first engaging portion 32 .

[0048] Reference Manual Figure 5 and Figure 6 The fishing ring 200 has a second through-hole 201 and a second engaging portion 202. The second engaging portion 202 of the fishing ring 200 is adapted to mate with the first engaging portion 32 of the distal release member 3, and the first engaging portion 32 is adapted to engage with the second engaging portion 202. When the first engaging portion 32 engages with the second engaging portion 202, the second through-hole 201 aligns with the first through-hole 31, allowing the pushing member 2 to pass through the first through-hole 31 and move outward to the second through-hole 201, thereby securing the fishing ring 200 to the distal release member 3.

[0049] Specifically, when the first clamping portion 32 is clamped with the second clamping portion 202, the fishing ring 200 can be limited along the length extension direction of the pushing member 2. The pushing member 2 passes through the first through hole 31 and the second through hole 201 to limit the fishing ring 200 in a direction perpendicular to the length extension direction of the pushing member 2, thereby effectively fixing the fishing ring 200.

[0050] Reference Manual Figure 9 and Figure 10 The first clamping portion 32 of the distal release member 3 has a first clamping slot 33 , and the first clamping slot 33 is located on one side of the distal release member 3 .

[0051] The distal release member 3 includes a first base 34 and a first card body 35. The first card body 35 is mounted on the first base 34, and the gap between the first card body 35 and the first base 34 forms the first card slot 33. The first base 34 is mounted on the head end 11 of the operating handle 1. Preferably, the first card body 35 and the first base 34 are integrally formed.

[0052] The second clamping portion 202 of the fishing ring 200 has a second clamping groove 203 , and the second clamping groove 203 is located on one side of the fishing ring 200 .

[0053] The fishing ring 200 includes a second base 204 and a second card body 205. The second card body 205 is mounted on the second base 204, and the gap between the second card body 205 and the second base 204 forms the second card slot 203. Preferably, the second card body 205 and the second base 204 are integrally formed.

[0054] The first card body 35 of the distal release member 3 is suitable for being installed in the second card slot 203 of the fishing ring 200, and the second card body 205 of the fishing ring 200 is suitable for being installed in the first card slot 33 of the distal release member 3. The first card body 35 and the second card body 205 are fixed to each other to limit the fishing ring 200 in the length extension direction of the pushing member 2 to prevent the fishing ring 200 from being pulled outward.

[0055] Reference Manual Figure 7 and Figure 8 Preferably, the surface of the first clamping body 35 surrounding the first clamping slot 33 is an inclined surface. As the depth of the first clamping slot 33 decreases, the width of the first clamping slot 33 decreases. The surface of the second clamping body 205 surrounding the second clamping slot 203 is also an inclined surface. As the depth of the second clamping slot 203 decreases, the width of the second clamping slot 203 gradually decreases. The inclined design of the first and second clamping bodies 35, 205 facilitates the installation and release of the fishing ring 200.

[0056] Reference Manual Figure 7 and Figure 8 A first flat end 36 is formed between the first base 34 of the distal release member 3 and the first card body 35 . The first base 34 , the first card body 35 and the first flat end 36 of the distal release member 3 surround and form the first card slot 33 .

[0057] A second flat end 206 is provided between the second base 204 and the second clamping body 205 of the fishing ring 200. The second base 204, the second clamping body 205 and the second flat end 206 of the fishing ring 200 surround and form the second clamping groove 203.

[0058] When the second engaging portion 202 of the fishing ring 200 engages with the first engaging portion 32 of the distal release member 3, the first inclined surface 351 of the first engaging body 35 contacts the second inclined surface 2051 of the second engaging body 205, thereby limiting the position of the second engaging body 205 in the longitudinal direction of the pushing member 2 and preventing the fishing ring 200 from being pulled outward. The first flat end 36 contacts the second flat end 206 to prevent the fishing ring 200 from rotating relative to the distal release member 3.

[0059] Preferably, the height of the first card body 35 of the distal release member 3 is the same as the height of the second card body 205 of the fishing ring 200. When the first card body 35 is installed in the second card slot 203 and the second card body 205 is installed in the first card slot 33, the first through hole 31 can correspond to the second through hole 201 to facilitate the passage of the pushing member 2.

[0060] It should be noted that before using the fishing ring delivery device provided by the present invention to deliver the fishing ring 200, the first engaging portion 32 of the distal release member 3 is engaged with the second engaging portion 202 of the fishing ring 200, and the pushing member 2 is pushed outward, allowing the pushing member 2 to pass through the first through-hole 31 and the second through-hole 201. After the fishing ring 200 is delivered to a predetermined position on the human body, the pushing member 2 is pulled backward, allowing the pushing member 2 to exit the second through-hole 201, and the fishing ring 200 and the distal release member 3 are relatively moved in a direction perpendicular to the length of the pushing member 2, so that the fishing ring 200 is separated from the distal release member 3.

[0061] Reference Manual Figure 5 and Figure 6 In a modified embodiment of the distal release member, the distal release member 3 further comprises an embracing groove 350 formed in the first engaging body 35. The fishing ring 200 comprises an inner core 207. When the second engaging portion 202 of the fishing ring 200 engages with the first engaging groove 33 of the distal release member 3, the embracing groove 350 embraces the inner core 207, so that the axes of the distal release member 3 and the fishing ring 200 can correspond to each other. In other words, the first through hole 31 of the distal release member 3 can correspond to the second through hole 201 of the fishing ring 200, facilitating the passage of the pushing member 2.

[0062] Furthermore, the handle 1 further includes a fixing member 13 having a fixing channel 130, and the pushing member 2 can be fixedly mounted in the fixing channel 130 of the fixing member 13. The shape and size of the fixing member 13 are adapted to the shape and size of the delivery channel 10. The fixing member 13 is mounted in the delivery channel 10 and can slide within the delivery channel 10 to control the extension and retraction of the pushing member 2.

[0063] The operating handle 1 includes a base 14, a tailstock 15, a top seat 16, a stopper 18, and a fixing cap 19. The stopper 18 is installed in the installation cavity 140, and the fixing cap 19 is then installed at the tail end of the base 15. Preferably, in actual use, to prevent the doctor from making an operation error during the operation, the fixing cap 19 and the base 15 can be fixed with glue to make them non-removable. The tailstock 15 is then detachably installed in the stopper 18. The top seat 16 is installed at the front end of the base 14. It is also understandable that in actual use, to prevent the doctor from making an operation error during the operation, the top seat 16 and the base 14 can be fixed with glue to make them non-removable. In other embodiments, the base 14 and the top seat 16 are integrally formed. This design can not only prevent surgical risks caused by doctor's operation error, but also eliminate the need for a second sealing ring 46, saving costs and having a simpler structure. The base 14, the tailstock 15, and the top seat 16 together surround and form the delivery channel 10. The top seat 16 has an opening corresponding to the delivery channel 10 for the pushing member 2 to pass through.

[0064] Preferably, the outer wall of the tailstock 15 is connected to the inner wall of the stopper 18 by threads. Alternatively, the outer wall of the tailstock 15 can also be connected to the inner wall of the stopper 18 by an interference fit. It is understood that the specific connection method between the tailstock 15 and the stopper 18 should not constitute a limitation of the present invention.

[0065] Preferably, the top seat 16 is connected to the base 14 via a threaded connection. Alternatively, in other preferred embodiments, the top seat 16 and the base 14 can be detachably connected via an interference fit. It is understood that the specific connection method between the top seat 16 and the base 14 should not constitute a limitation of the present invention.

[0066] The operating handle 1 further includes an elastic member 17 mounted to the bottom of the cavity of the tailstock 15. When the tailstock 15 is mounted on the stopper 18, the elastic member 17 is positioned between the bottom wall of the cavity of the tailstock 15 and the bottom end of the fixing member 13, providing a thrust to the fixing member 13 to eliminate the length difference between the extension tube 41 and the fixing member 13 during use. Furthermore, when the tailstock 15 is mounted on the stopper 18, the fixing member 13 cannot be pulled outward, thereby preventing the fishing ring 200 from being removed from the distal release member 3, thereby improving safety during operation.

[0067] It should be noted that the extension tube 41 and the fixing member 13 produce different amounts of compression when bent. Before use, the extension tube 41 and the fixing member 13 have a first length difference in a straight axial direction. During delivery into the human body, the extension tube 41 and the fixing member 13 are both bent toward the external passage, resulting in a second length difference between the extension tube 41 and the fixing member 13. These first and second length differences are inconsistent. During installation of the elastic member 17, the elastic member 17 is pre-tightened, which eliminates the difference between the first and second length differences.

[0068] Preferably, the elastic member 17 is fixedly mounted on the bottom wall of the cavity of the tail stock 15 , and when the tail stock 15 is detached from the limiting member 18 , the elastic member 17 can move together with the tail stock 15 .

[0069] After the tailstock 15 is removed from the limiting member 18 , the user can operate the fixing member 13 to move backward, so that the pushing member 2 retracts into the second channel 201 of the fishing ring 200 , so that the fishing ring 200 can be removed from the distal release member 3 .

[0070] Preferably, the elastic member 17 is implemented as a spring. The bottom wall of the cavity of the tailstock 15 has a fixing protrusion 151. The elastic member 17 implemented as a spring is fixedly mounted on the fixing protrusion 151. The diameter of the fixing protrusion 151 is larger than the diameter of the spring, and the outer side of the fixing protrusion 151 has a thread, and the spring surrounds the outer side of the fixing protrusion 151 to fix the spring. Optionally, in other preferred embodiments of the present invention, the elastic member 17 can also be implemented as elastic rubber. It is understood that the specific type of the elastic member 17 should not constitute a limitation of the present invention.

[0071] Reference Manual Figure 4APreferably, the fixing protrusion 151 has an axial groove to form an inwardly compressible spring. When the spring is compressed, the spring can be pressed into the fixing protrusion 151. When the pressure is unloaded, the spring returns to normal, radially supporting the inner diameter of the spring, and the spring wire is stuck in the threaded groove of the fixing protrusion 151, thereby firmly fixing the spring to the protrusion 151. Optionally, the fixing protrusion 151 and the elastic member 17 implemented as a spring can also be fixed by an interference fit. The specific connection method between the fixing protrusion 151 and the elastic member 17 should not constitute a limitation of the present invention.

[0072] The limiting member 18 has a limiting hole, and the limiting member 18 is used to limit the fixing member 13 to control the range of movement of the fixing member 13 and improve the stability of the fixing member 13 .

[0073] When the fixing member 13 is installed on the delivery channel 10 and the tailstock 15 is installed on the limiting member 18, the fixing member 13 is located between the limiting member 18 and the elastic member 17, and the two ends of the fixing member 13 are in contact with the elastic member 17 and the limiting member 18 respectively, thereby improving the stability of the fixing member 13.

[0074] Reference Manual Figure 3 The base 14 has a mounting cavity 140 , and the position-limiting member 18 and the tailstock 15 are respectively mounted in the mounting cavity 140 of the base 14 . The tailstock 15 is threadedly connected to the position-limiting member 18 .

[0075] The operating handle 1 further includes a fixing cap 19. The fixing cap 19 is mounted on the base 14, and the end of the fixing cap 19 contacts the end of the limiting member 18 to limit the position of the limiting member 18. When the fixing cap 19 is mounted on the base 14, the limiting member 18 is located between the engaging portion of the fixing cap 19 and the base 14, thereby fixing the limiting member 18.

[0076] Preferably, the fixing cap 19 is mounted on the base 14 by threaded connection, and the fixing cap 19 has a passage for the tailstock 15 to pass through.

[0077] Reference Manual Figure 2 The operating handle 1 further includes an extension tube 41, which is mounted on the top seat 16 and extends outward from the top seat 16. The channel in the extension tube 41 corresponds to the delivery channel 10, and the pusher 2 extends outward after passing through the channel in the extension tube 41.

[0078] Preferably, the extension tube 41 is fixedly mounted to the top seat 16 by gluing. Alternatively, in other preferred embodiments of the present invention, the extension tube 41 can be fixedly connected to the top seat 16 by an interference fit. It is understood that the specific method of mounting the extension tube 41 to the top seat 16 should not constitute a limitation of the present invention.

[0079] The distal release member 3 is fixedly mounted on the extension tube 41. Preferably, the first base 34 of the distal release member 3 is fixedly mounted on the extension tube 41 by gluing.

[0080] Reference Manual Figure 3 A storage chamber 43 is defined between the top end of the stopper 18 and the protruding sidewall of the base 14. A predetermined position of the base 14 includes an opening 44 communicating with the storage chamber 43. During use, due to the gap between the outer wall of the pusher 2 and the inner wall of the extension tube 41, blood in the patient's body can enter the storage chamber 43 through the gap between the pusher 2 and the extension tube 41 and can be discharged through the opening 44 communicating with the storage chamber 43.

[0081] It should also be noted that before the capture ring 200 is placed, a disinfectant liquid, including but not limited to physiological saline, can be injected into the storage chamber 43 through the opening 44. The opening 44 can also be used to exhaust gas, such as air, from the operating handle 1. Optionally, the operating handle 1 further includes a vent pipe, a three-way valve body, and a three-way knob mounted on the opening 44.

[0082] Furthermore, the operating handle 1 further includes a first sealing ring 45 and a second sealing ring 46. The first sealing ring 45 surrounds the outer side of the limiter 18 and is located between the limiter 18 and the base 14. The second sealing ring 46 is installed at the connection between the top seat 16 and the base 14. The first sealing ring 45 and the second sealing ring 46 can seal the storage chamber 43 to a certain extent, preventing the liquid in the storage chamber 43 from flowing out of the gap between the sealing member 18 and the base 14, and the gap between the top seat 16 and the base 14.

[0083] Preferably, the outer wall of the limiting member 18 has a sealing groove for accommodating the first sealing ring 45 for installing the first sealing ring 45. It is understandable that in other preferred embodiments, a sealing groove is provided at a preset position on the inner wall of the base 14 for accommodating the first sealing ring.

[0084] The operating handle 1 further includes a protective cover 47. The protective cover 47 is sleeved on the outside of the top seat 16 of the operating handle 1 to provide protection for the top seat 16 of the operating handle 1. Preferably, the protective cover 47 is made of silicone.

[0085] Reference Manual Figure 4B The inner wall of the mounting cavity 140 of the base 14 has an anti-rotation groove 141, and the anti-rotation groove 141 extends from the opening of the mounting cavity 140 to the bottom of the mounting cavity 140. The outer side surface of the limiting member 18 has an anti-rotation protrusion 181. The shape and size of the anti-rotation protrusion 181 of the limiting member 18 are adapted to the shape and size of the anti-rotation groove 141. When the limiting member 18 is installed in the mounting cavity 140 of the base 14, the anti-rotation protrusion 181 is installed in the anti-rotation groove 141. The anti-rotation protrusion 181 cooperates with the anti-rotation groove 141 to prevent the limiting member 18 from rotating along with the tail stock 15 in the mounting cavity 140 of the base 14 when the tail stock 15 is unscrewed.

[0086] Preferably, the base 14 has two anti-rotation grooves 141, and the positions of the two anti-rotation grooves 141 are symmetrical with respect to the center of the mounting cavity 140. Accordingly, the base 14 also has two anti-rotation protrusions 181 on the outer side of the stopper 18, and the positions of the two anti-rotation protrusions 181 are symmetrical with respect to the central axis of the stopper 18. It is understood that in other embodiments, the number of the anti-rotation grooves 141 and the anti-rotation protrusions 181 can be three or more, and the specific number of the anti-rotation grooves 141 and the anti-rotation protrusions 181 should not constitute a limitation of the present invention.

[0087] It should be noted that the assembly process of the fishing ring delivery device provided by the present invention is as follows:

[0088] Step 1: First, pass the pushing member 2 through the fixing channel 130 of the fixing member 13, and fix the pushing member 2 to the fixing channel 130 of the fixing member 13 by gluing;

[0089] Step 2: Align the anti-rotation protrusion 181 of the limiting member 18 with the anti-rotation groove 141 of the base 14 , and install the limiting member 18 in the installation cavity 140 of the base 14 ;

[0090] Step 3: Install the fixing member 13 in the channel of the limiting member 18;

[0091] Step 4: Connect the head end of the tailstock 15 to the limiting member 18;

[0092] Step 5: Install the fixing cap 19 on the tail end of the base 14;

[0093] Step 6: Install the top seat 16 on the head end of the base 14 .

[0094] It is understandable that the above assembly process is only an example. In a specific assembly process, the order of the above steps can be interchanged. For example, the fourth step and the fifth step can be interchanged, and the sixth step can be placed before the first step.

[0095] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fishing ring delivery device, characterized in that: include: an operating handle having a head end and a tail end, wherein the operating handle has a delivery channel extending from the head end to the tail end; a pushing member, mounted on the delivery channel of the operating handle, and capable of being pulled to move within the delivery channel; a distal release member mounted on the head end of the operating handle, the distal release member having a first clamping portion for clamping with the second clamping portion of the fishing ring to limit the fishing ring in the longitudinal extension direction and circumferential direction of the pushing member; The distal release member has a first through hole, and the fishing ring has a second through hole. When the first clamping portion is engaged with the second clamping portion, the first through hole corresponds to the second through hole, and the pushing member can move forward along the delivery channel through the first through hole and the second through hole to limit the fishing ring in a direction perpendicular to the length of the pushing member, thereby fixing the fishing ring to the distal release member. In which, the operating handle includes a base, a tail stock, a fixing part, an elastic part and a limit part, the base has a mounting cavity, and both ends of the base are open; the limit part is installed in the mounting cavity of the base; the tail stock is detachably mounted on the limit part, the fixing part is installed between the limit part and the tail stock, the fixing part has a fixed channel, the pushing part is installed in the fixed channel and extends outward through the limit part; the fixing part is installed in the delivery channel and can slide in the delivery channel to control the extension and retraction of the pushing part; the elastic part is installed on the bottom wall of the tail stock, the elastic part is located between the bottom wall of the tail stock and the fixing part, and is used to provide thrust to the fixing part, and when the tail stock is installed on the limit part, the fixing part cannot be pulled outward, so that the fishing ring cannot be removed from the distal release part.

2. The fishing ring delivery device according to claim 1, characterized in that The distal release member includes a first base and a first card body, and the first card body and the first base are surrounded to form a first card slot; the fishing ring includes a second base and a second card body, and the second card body and the second base are surrounded to form a second card slot; the first card body is detachably mounted on the second card slot, and the second card body is detachably mounted on the first card slot, and the first card body is clamped to the second card body.

3. The fishing ring delivery device according to claim 2, characterized in that The surface of the first card body facing the first substrate is an inclined surface, and the surface of the second card body facing the second substrate is also an inclined surface.

4. The fishing ring delivery device according to claim 2, characterized in that The distal release member includes a first planar end located between the first base and the first card body; the fishing ring includes a second planar end located between the second base and the second card body; the top end of the first card body can contact the second planar end, and the top end of the second card body can contact the first planar end.

5. The fishing ring delivery device according to claim 2, characterized in that The first card body of the distal release member has an embracing groove, and an inner core is provided between the second card body and the second base of the fishing ring. The embracing groove surrounds the inner core so that the axis of the distal release member and the axis of the fishing ring are aligned.

6. The fishing ring delivery device according to any one of claims 1 to 5, characterized in that: The operating handle further includes a fixing cap, which is detachably mounted on the base. One end of the fixing cap connected to the base contacts the limiting member to fix the limiting member to the base.

7. The fishing ring delivery device according to claim 6, characterized in that The bottom wall of the tailstock is provided with a fixing protrusion, and the elastic member is fixedly mounted on the fixing protrusion.

8. The fishing ring delivery device according to claim 6, characterized in that The operating handle further includes a top seat, which is detachably mounted on an end of the base away from the tail seat; the operating handle further includes an extension tube mounted on the top seat, the pushing member extends outward through the extension tube, and the distal release member is mounted on an end of the extension tube away from the top seat.

9. The fishing ring delivery device according to claim 8, characterized in that A storage cavity is provided between the top end of the limiting member of the operating handle and the inner wall boss of the base, and an opening communicating with the storage cavity is provided at a preset position of the base.

Images