An implant delivery assembly

Abstract

The utility model relates to an implant conveying assembly, include: push pipe, have push chamber, the one end through fixed part is located push pipe near one end of proximal end, the other end is equipped with elastic deformation part, the elastic deformation part is located in push chamber and is located near one end of distal end, the elastic deformation part is in contact with push chamber cavity wall, when conveying implant, through the cooperation of elastic deformation part and push chamber cavity wall to the connecting wire of implant is carried out clamping, through fixed part drive and drive the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silk of the silicone of the silicone of the silicone of the silicone of the silicone of the silicone of the silicone of

Description

Technical Field

[0001] This utility model relates to the field of aneurysm embolization device delivery technology, and in particular to an implant delivery assembly. Background Technology

[0002] Existing embolization devices used to treat aneurysms often have complex structures, which not only increases the difficulty of the surgical procedure but, more importantly, may lead to poor stability of the embolization device during the release process. Poor release stability may result in inaccurate positioning of the embolization material or postoperative displacement, thereby affecting the embolization effect and even causing new complications, posing a potential risk to the patient's treatment outcome and safety. Utility Model Content

[0003] In order to solve or at least partially solve the above-mentioned technical problems, the present invention provides an implant delivery assembly.

[0004] This invention provides an implant delivery assembly, which includes a push tube and a release wire. The push tube has a push cavity. One end of the release wire is fixed to the end of the push tube near the proximal end by a fixing member, and the other end of the release wire has an elastic deformation part. The elastic deformation part is located in the push cavity and is located near the distal end. The elastic deformation part abuts against the wall of the push cavity. During implant delivery, the connecting wire of the implant is clamped by the cooperation between the elastic deformation part and the wall of the push cavity. The fixing member drives the release wire to move proximally, and the elastic deformation part moves proximally accordingly, colliding with the anti-dislodgement ball of the implant and undergoing elastic deformation to release the elastic deformation part from the anti-dislodgement ball, thereby releasing the implant.

[0005] Optionally, when the elastic deformation portion has a ring-shaped structure, the anti-dislodgement ball of the implant is located at the end of the elastic deformation portion near the proximal end.

[0006] Optionally, the push cavity wall has an assembly groove; the assembly groove is located at the end of the push cavity near the distal end, and the assembly groove is located at the end of the elastic deformation portion near the proximal end.

[0007] Optionally, the wall of the pushing cavity has a positioning groove, which is arranged in a circle around the axis of the pushing cavity; the elastic deformation part is disposed in the positioning groove.

[0008] Optionally, the release wire has a helical flexible segment; the flexible segment is located at one end of the release wire near the elastic deformation portion.

[0009] Optionally, the release wire has a flexible segment in the shape of a variable diameter spiral; the flexible segment is located at one end of the release wire near the elastic deformation portion.

[0010] Optionally, from the direction of the distal end to the direction of the proximal end, the outer diameter of the flexible segment first gradually increases to 1 / 4 to 3 / 4 of the diameter of the pushing cavity, and then gradually decreases.

[0011] Optionally, when the elastic deformation portion has a spiral structure, the anti-dislodgement ball of the implant is located in the gap of the elastic deformation portion.

[0012] Optionally, when the elastic deformation part has a variable diameter spiral structure, the anti-dislodgement ball of the implant is located in the gap of the elastic deformation part.

[0013] Optionally, the outer diameter of the elastic deformation part gradually decreases from the direction of the distal end to the direction of the proximal end; the outer diameter of the end of the elastic deformation part near the distal end is the same as the diameter of the pushing cavity.

[0014] Compared to existing technologies, the technical solution of this embodiment involves providing an elastic deformation part at one end of the release wire, which is then placed within the delivery cavity of the delivery tube. The elastic deformation part, in conjunction with the cavity wall, limits the anti-dislodgement ball of the implant, facilitating implant delivery. This embodiment also facilitates implant dislodgement. When dislodgement is required, the release wire is simply pulled out; the elastic deformation part collides with the anti-dislodgement ball, causing elastic deformation and freeing the ball from its restraint. This embodiment further simplifies the structure, improving the stability of implant dislodgement and enhancing surgical success rate and safety. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model, the relevant drawings will be briefly described below. It should be understood that the drawings described below are only for illustrating some embodiments of this utility model, and those skilled in the art can obtain many other technical features and connections not mentioned herein based on these drawings.

[0016] Figure 1 This is a cross-sectional structural schematic diagram of one embodiment of an implant delivery component according to the present invention; Figure 2 This is a partial schematic diagram of one embodiment of an implant delivery component according to the present invention. Figure 1 ; Figure 3 This is a partial cross-sectional schematic diagram of one embodiment of an implant delivery component according to the present invention; Figure 4 This is a schematic diagram of the structure of one embodiment of the release wire of an implant delivery assembly according to this utility model. Figure 1 ; Figure 5A schematic diagram of the structure of one embodiment of the release wire of the implant delivery assembly of this utility model. Figure 2 ; Figure 6 This is a partial schematic diagram of one embodiment of an implant delivery component according to the present invention. Figure 2 ; Figure 7 This is a partial schematic diagram of one embodiment of an implant delivery component according to the present invention. Figure 3 ; Figure 8 This is a partial schematic diagram of one embodiment of an implant delivery component according to the present invention. Figure 4 .

[0017] Explanation of reference numerals in the attached figures: 1. Push tube; 11. Push cavity; 12. Assembly groove; 13. Positioning groove; 2. Release wire; 21. Elastic deformation part; 22. Gap; 23. Slit; 24. Flexible section; 3. Fixing component; 31. Groove; 4. Implant; 41. Anti-ball detachment; 42. Connecting wire; 51. Snap-fit ​​protrusion; 52. Snap-fit ​​groove. Detailed Implementation

[0018] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0019] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0020] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0021] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0022] Unless otherwise stated, the term "multiple" means two or more, and "multiple groups" means two or more groups.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0024] In this invention, the distal end refers to the end that is far from the surgeon during surgery, and the proximal end refers to the end that is close to the surgeon during surgery.

[0025] The applicant found that the existing implant delivery devices have complex structures, and the complex structure can lead to poor stability of the implant during the release process, which may result in the risk of the implant failing to be accurately positioned or shifting after the operation.

[0026] In view of this, the inventor of this utility model provides an implant delivery assembly to solve the above-mentioned problems. Several specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] First Embodiment An implant delivery component mentioned in this embodiment, such as Figure 1 , Figure 2As shown, the implant delivery assembly includes a delivery tube 1, a release wire 2, and a fixation member 3. The internal space of the delivery tube 1 is a delivery cavity 11. One end of the fixation member 3 has a groove 31, and one end of the release wire 2 is disposed in the groove 31 of the fixation member 3. The other end of the release wire 2 is wound with an elastic deformation part 21 in a circular shape. The end of the release wire 2 with the elastic deformation part 21 passes through the delivery cavity 11 of the delivery tube 1, and the elastic deformation part 21 is located at the end of the delivery cavity 11 closer to the distal end. By placing the end of the delivery tube 1 closer to the proximal end in the groove 31 of the fixation member 3, the delivery tube 1 and the fixation member 3 are snap-fitted together. The outer diameter of the elastic deformation part 21 in a circular shape is equal to the diameter of the delivery cavity 11, that is, when the elastic deformation part 21 is disposed in the delivery cavity 11, the elastic deformation part 21 abuts against the cavity wall of the delivery cavity 11.

[0028] Optionally, the push tube 1 can be made of stainless steel.

[0029] Optionally, the release wire 2 may be made of stainless steel, or it may be made of platinum-tungsten alloy, or it may be made of platinum-iridium alloy.

[0030] Optionally, the diameter of the release wire 2 is 0.03mm to 0.1mm. This setting can ensure the structural strength of the release wire 2 so that the elastic deformation part 21 can limit the anti-dislodgement ball 41 of the implant 4.

[0031] Exemplary usage of the implant delivery assembly disclosed in this embodiment: To facilitate understanding of the technical solution of the implant delivery assembly disclosed in this embodiment, the implant 4 transported in this embodiment will be introduced. The implant 4 adopts an existing implant, for example, the implant 4 can adopt an existing embolized spring coil. The main body of the implant 4 is the embolized spring of the embolized spring coil. The tail end of the implant has a spherical structure. Therefore, the tail end with the spherical structure can be regarded as an anti-dislodgement ball 41. The anti-dislodgement ball 41 is connected to the main body of the implant 4 through a connecting wire 42.

[0032] like Figure 1 , Figure 2As shown, during implant delivery 4, the elastic deformation portion 21 of the release wire 2 is first placed inside the delivery cavity 11 of the delivery tube 1, with the elastic deformation portion 21 located at the distal end of the delivery cavity 11, and the annular elastic deformation portion 21 abutting against the cavity wall of the delivery cavity 11. Then, the proximal end of the delivery tube 1 is placed inside the groove 31 of the fixing member 3, thus achieving the snap-fit ​​fixation between the release wire 2 and the delivery tube 1. Next, the annular elastic deformation portion 21 is squeezed, causing it to elastically deform, forming a gap 22 between the elastic deformation portion 21 and the cavity wall of the delivery cavity 11. Then, the anti-dislodgement ball 41 of the implant 4 is placed inside the delivery cavity 11, with the anti-dislodgement ball 41 located at the distal end of the delivery cavity 11. Then, the anti-dislodgement ball 41 passes through the gap 22, with the anti-dislodgement ball 41 located at the proximal end of the elastic deformation portion 21. Finally, the pressure on the elastic deformation part 21 is released, and the elastic deformation part 21 returns to its original shape. The elastic deformation part 21, which has a circular structure, cooperates with the wall of the push cavity 11 to clamp the connecting wire 42 of the implant 4. The anti-dislodgement ball plays an anti-dislodgement role, thus achieving the fixation of the implant 4.

[0033] When the implant 4 is delivered into the aneurysm, the surgeon only needs to remove the fixation element 3 from the delivery tube 1. The fixation element 3 moves the release wire 2 proximally, and the elastic deformation part 21, which has a circular structure, moves proximally accordingly. When the elastic deformation part 21 collides with the anti-dislodgement ball 41, the elastic deformation part 21 undergoes elastic deformation, and a gap 22 is re-formed between the elastic deformation part 21 and the wall of the delivery cavity 11. During the movement of the elastic deformation part 21 proximally, the anti-dislodgement ball 41, located at the end of the elastic deformation part 21 near the proximal end, passes through the gap 22 to the end of the elastic deformation part 21 near the distal end. This releases the elastic deformation part 21 from the restriction of the anti-dislodgement ball 41, and the anti-dislodgement ball 41 of the implant 4 loses the restriction of the elastic deformation part 21, and the implant 4 begins to dislodge and deform.

[0034] Compared to existing technologies, the technical solution of this embodiment involves winding an elastic deformation portion 21 in a circular shape around one end of the release wire 2. This elastic deformation portion 21 is positioned within the push cavity 11 of the push tube 1. The elastic deformation portion 21, in conjunction with the cavity wall of the push cavity 11, limits the anti-detachment ball 41 of the implant 4, facilitating the delivery of the implant 4. This embodiment also facilitates the release of the implant 4. When the implant 4 needs to be released, simply pull out the release wire 2. The elastic deformation portion 21 collides with the anti-detachment ball 41, causing elastic deformation, thus freeing the anti-detachment ball 41 from the constraint of the elastic deformation portion 21, allowing for release. This embodiment further simplifies the structure, improving the stability of implant 4 release while simultaneously increasing the success rate and safety of the surgery.

[0035] Second Embodiment This embodiment also proposes an implant delivery assembly. The second embodiment is a further improvement based on the first embodiment, with the main improvements being: Optional, such as Figure 3 As shown, the wall of the push cavity 11 has a mounting groove 12, which is arranged in a ring around the axis of the push cavity 11. The mounting groove 12 is located at the distal end of the push cavity 11. When the release wire 2 is connected to the push tube 1, the elastic deformation part 21 is located inside the push cavity 11, and the elastic deformation part 21 is located at the distal end of the mounting groove 12. The anti-dislodgement ball 41 is located inside the mounting groove 12, and the anti-dislodgement ball 41 is located at the proximal end of the elastic deformation part 21. The elastic deformation part 21 cooperates with the wall of the push cavity 11 to clamp the connecting wire 42, thereby achieving the limiting and fixing of the implant 4. By setting the anti-dislodgement ball inside the mounting groove, the resistance of the elastic deformation part to elastic deformation due to collision with the anti-dislodgement ball can be reduced, making it easier to release the implant.

[0036] Optional, such as Figure 3 As shown, the wall of the push cavity 11 has a positioning groove 13, which is arranged in a circle around the axis of the push cavity 11. The positioning groove 13 is located at the distal end of the push cavity 11. When the release wire 2 is connected to the push tube 1, the elastic deformation part 21 is located inside the push cavity 11 and inside the positioning groove 13. When fixing the implant 4, the elastic deformation part 21 squeezes the connecting wire 42 into the positioning groove 13 and bends the connecting wire 42, which increases the stability of clamping and fixing the implant 4.

[0037] Alternatively, the two optional technical solutions mentioned above can be combined.

[0038] Third Embodiment This embodiment also proposes an implant delivery assembly. The third embodiment is a further improvement based on the first or second embodiment, with the main improvement being: Optional, such as Figure 4 As shown, the release wire 2 has a flexible segment 24 located at the distal end of the release wire 2 and at the proximal end of the elastic deformation portion 21. The flexible segment 24 has a helical structure. By providing the helical flexible segment 24 on the release wire 2, the flexibility of the release wire 2 can be increased, making it more suitable for tortuous blood vessels.

[0039] Optional, such as Figure 5As shown, the difference from the aforementioned optional technical solutions lies in that the flexible segment 24 has a variable-diameter spiral structure. From the distal end to the proximal end, the outer diameter of the flexible segment 24 gradually increases to 1 / 4 to 3 / 4 of the diameter of the push cavity 11, and then gradually decreases. By providing the flexible segment 24 with a variable-diameter spiral structure on the release wire 2, this arrangement makes the release wire 2 more suitable for tortuous blood vessels.

[0040] Either of the two technical solutions mentioned above can be chosen.

[0041] Fourth embodiment This embodiment also proposes an implant delivery assembly. The difference between the fourth embodiment and any of the first to third embodiments lies in the structure of the elastic deformation part 21, as detailed below: like Figure 1 , Figure 6 As shown, one end of the release wire 2 is disposed in the groove 31 of the fixing member 3, and the other end of the release wire 2 is wound with a spiral elastic deformation part 21. The outer diameter of the spiral elastic deformation part 21 is equal to the diameter of the pushing cavity 11, that is, when the elastic deformation part 21 is disposed in the pushing cavity 11, the elastic deformation part 21 abuts against the cavity wall of the pushing cavity 11. The spiral elastic deformation part 21 has a gap 23. One end of the release wire 2 with the elastic deformation part 21 passes through the pushing cavity 11 of the pushing tube 1, and the elastic deformation part 21 is located at the end of the pushing cavity 11 closer to the distal end. By disposing the end of the pushing tube 1 closer to the proximal end in the groove 31 of the fixing member 3, the snap-fit ​​connection between the pushing tube 1 and the fixing member 3 is achieved.

[0042] Exemplary usage of the implant delivery component disclosed in this technical solution: like Figure 1 , Figure 2 , Figure 6As shown, during implant delivery 4, the elastic deformation portion 21 of the release wire 2 is first placed inside the delivery cavity 11 of the delivery tube 1, with the elastic deformation portion 21 located at the distal end of the delivery cavity 11, and the spiral-shaped elastic deformation portion 21 abuts against the cavity wall of the delivery cavity 11. Then, the proximal end of the delivery tube 1 is placed inside the groove 31 of the fixing member 3, thus achieving the snap-fit ​​fixation between the release wire 2 and the delivery tube 1. Next, a portion of the elastic deformation portion 21 near the distal end is squeezed, causing elastic deformation of this portion, while the proximal portion of the elastic deformation portion 21 still abuts against the cavity wall of the delivery cavity 11. A gap 22 is formed between the elastically deformed portion of the elastic deformation portion 21 and the cavity wall of the delivery cavity 11. Finally, the anti-dislodgement ball 41 of the implant 4 is placed inside the delivery cavity 11, with the anti-dislodgement ball 41 located at the distal end of the delivery cavity 11. Then, the anti-detachment ball 41 passes through the gap 22, and is positioned within the gap 23 of the elastic deformation portion 21. Finally, the compression on the distal portion of the elastic deformation portion 21 is released, and the elastic deformation portion 21 returns to its original shape. The spiral-shaped elastic deformation portion 21, in conjunction with the wall of the push cavity 11, clamps the connecting wire 42 of the implant 4. The anti-detachment ball 41, positioned within the gap 23 of the elastic deformation portion 21, prevents detachment, resulting in better fixation of the implant 4.

[0043] When the implant 4 is delivered into the aneurysm, the surgeon only needs to remove the fixation element 3 from the push tube 1. The fixation element 3 moves the release wire 2 proximally, and the spiral-shaped elastic deformation part 21 moves accordingly. When the elastic deformation part 21 collides with the anti-dislodgement ball 41, the elastic deformation part 21, which moves with the release wire 2, undergoes elastic deformation. A gap 22 is re-formed between the part of the elastic deformation part 21 near the distal end and the wall of the push cavity 11. As the elastic deformation part 21 moves, the anti-dislodgement ball 41 located in the gap 23 of the elastic deformation part 21 passes through the gap 22 to the end of the elastic deformation part 21 near the distal end, and the elastic deformation part 21 releases the restriction of the anti-dislodgement ball 41. The anti-dislodgement ball 41 of the implant 4 loses the restriction of the elastic deformation part 21, and the implant 4 begins to dislodge and deform.

[0044] Compared to existing technologies, the technical solution of this embodiment involves winding a spiral-shaped elastic deformation part 21 around one end of the release wire 2. This elastic deformation part 21 is positioned within the push cavity 11 of the push tube 1. The cooperation between the elastic deformation part 21 and the wall of the push cavity 11 limits the anti-detachment ball 41 of the implant 4, facilitating the delivery of the implant 4. This embodiment also facilitates the release of the implant 4. When the implant 4 needs to be released, simply pull out the release wire 2. The elastic deformation part 21 collides with the anti-detachment ball 41 and undergoes elastic deformation, thus freeing the anti-detachment ball 41 from the constraint of the elastic deformation part 21, allowing it to be released. This embodiment further simplifies the structure, improving the stability of implant 4 release while simultaneously increasing the success rate and safety of the surgery.

[0045] Fifth Embodiment This embodiment also proposes an implant delivery component. The differences between the fifth embodiment and the fourth embodiment are as follows: like Figure 7 As shown, one end of the release wire 2 is disposed in the groove 31 of the fixing member 3, and the other end of the release wire 2 is wound with an elastic deformation part 21 with a variable diameter spiral structure. The outer diameter of the elastic deformation part 21 gradually decreases from the direction of the distal end to the direction of the proximal end. The outer diameter of the end of the elastic deformation part 21 near the distal end is the same as the diameter of the pushing cavity 11, that is, when the elastic deformation part 21 is disposed in the pushing cavity 11, the end of the elastic deformation part 21 near the distal end abuts against the cavity wall of the pushing cavity 11. The elastic deformation part 21 with a variable diameter spiral structure has a gap 23. The end of the release wire 2 with the elastic deformation part 21 passes through the pushing cavity 11, and the elastic deformation part 21 is located at the end of the pushing cavity 11 near the distal end. By disposing the end of the pushing tube 1 near the proximal end in the groove 31 of the fixing member 3, the snap-fit ​​connection between the pushing tube 1 and the fixing member 3 is achieved. During implant delivery, the anti-dislodgement ball 41 of the implant 4 is located in the gap 23 of the elastic deformation part 21. This not only clamps and fixes the implant, but also increases the passage of the release wire near the distal end, making it suitable for tortuous blood vessels.

[0046] Sixth Embodiment This embodiment also proposes an implant delivery assembly. The sixth embodiment is a further improvement based on any one of the first to fifth embodiments, as detailed below: like Figure 8As shown, the push tube 1 and the fixing member 3 are connected by a snap-fit ​​structure. Specifically, the outer wall of the push tube 1 has a snap-fit ​​protrusion 51, located at the proximal end of the push tube 1. The snap-fit ​​protrusion 51 is arranged in a circle around the axis of the push tube 1. Correspondingly, the groove 31 of the fixing member 3 has a snap-fit ​​groove 52 on its groove wall, which is adapted to the snap-fit ​​protrusion 51. The snap-fit ​​groove 52 is arranged in a circle around the axis of the fixing member 3. By placing the snap-fit ​​protrusion 51 within the snap-fit ​​groove 52, the snap-fit ​​connection between the push tube 1 and the fixing member 3 is achieved. This arrangement increases the stability of the connection between the fixing member 3 and the push tube 1.

[0047] Finally, it should be noted that those skilled in the art will understand that many technical details have been presented in the embodiments of this utility model to facilitate a better understanding of the present invention. However, even without these technical details and various changes and modifications based on the above embodiments, the technical solutions claimed in the claims of this utility model can be substantially achieved. Therefore, in practical applications, various changes can be made to the above embodiments in form and detail without departing from the spirit and scope of this utility model.

Claims

1. An implant delivery assembly, characterized in that, include: The push tube has a push cavity; The release wire has one end fixed to the proximal end of the push tube by a fixing member, and the other end has an elastic deformation part; the elastic deformation part is located in the push cavity and is located near the distal end; the elastic deformation part abuts against the wall of the push cavity; During implant delivery, the connecting wire of the implant is clamped by the cooperation between the elastic deformation part and the wall of the push cavity; the release wire is driven to move proximally by the fixing member, and the elastic deformation part moves proximally accordingly, colliding with the anti-dislodgement ball of the implant to undergo elastic deformation, thereby releasing the elastic deformation part from the anti-dislodgement ball and realizing the release of the implant.

2. The implant delivery assembly according to claim 1, characterized in that, When the elastic deformation part has a ring-shaped structure, the anti-dislodgement ball of the implant is located at the end of the elastic deformation part near the proximal end.

3. The implant delivery assembly according to claim 2, characterized in that, The push cavity wall has an assembly groove; the assembly groove is located at the end of the push cavity near the distal end, and the assembly groove is located at the end of the elastic deformation part near the proximal end.

4. The implant delivery assembly according to claim 2, characterized in that, The wall of the push cavity has a positioning groove, which is arranged in a circle around the axis of the push cavity; the elastic deformation part is disposed in the positioning groove.

5. The implant delivery assembly according to claim 2, characterized in that, The release wire has a spiral flexible segment; the flexible segment is located at one end of the release wire near the elastic deformation part.

6. The implant delivery assembly according to claim 2, characterized in that, The release wire has a flexible segment in a variable diameter spiral shape; the flexible segment is located at one end of the release wire near the elastic deformation part.

7. The implant delivery assembly according to claim 6, characterized in that, From the direction of the distal end to the direction of the proximal end, the outer diameter of the flexible segment first gradually increases to 1 / 4 to 3 / 4 of the diameter of the pushing cavity, and then gradually decreases.

8. The implant delivery assembly according to claim 1, characterized in that, When the elastic deformation part has a spiral structure, the anti-dislodgement ball of the implant is located in the gap of the elastic deformation part.

9. The implant delivery assembly according to claim 1, characterized in that, When the elastic deformation part has a variable diameter spiral structure, the anti-dislodgement ball of the implant is located in the gap of the elastic deformation part.

10. The implant delivery assembly according to claim 9, characterized in that, From the direction of the distal end to the direction of the proximal end, the outer diameter of the elastic deformation part gradually decreases; the outer diameter of the end of the elastic deformation part near the distal end is the same as the diameter of the pushing cavity.

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