Full-suture anchor implanter

Abstract

The utility model provides a full suture anchor implanter, relates to medical instrument technical field, the full suture anchor implanter mainly comprises handle mechanism and implant rod, handle mechanism comprises knob, limit cover and transmission component, knob is rotatingly connected with limit cover, one end of transmission component is provided on knob, the other end passes through limit cover, and the transmission component passes through the limit cover. According to the utility model, through the cooperation of the transmission assembly and the rotary handle, the rotary motion of the rotary handle is converted into the reciprocating motion of the transmission assembly along the axial direction of the limiting cover, so that a doctor only needs to rotate the rotary handle, and the operation is simple and convenient. Therefore, two operations of implanting the full-suture anchor by the implanting rod and pulling and deforming the full-suture anchor can be completed, the operation burden of a doctor is relieved, and meanwhile, the operation failure risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a full-suture anchor implanter. Background Art

[0002] At present, anchoring devices made of all sutures have appeared in orthopedic repair surgery. The flexible and deformable characteristics of sutures are used to reduce the size of the anchor during implantation. After implantation, the anchor body is deformed into a fixed shape by pulling, thereby solving the technical problems of secondary damage such as wiper effect and bungee effect caused by hard-hard contact between traditional hard anchors and bones. At the same time, since the all-suture anchors are flexible bodies with variable volume during implantation, compared with hard anchors, they do not require larger diameter bone channels, thereby reducing bone loss. Moreover, since the anchors are all sutures, the wear of the sutures by the hard anchors after surgery is avoided, thereby reducing the risk of surgery.

[0003] In view of the above reasons, full suture anchors are increasingly used in actual clinical operations. However, due to the flexible characteristics of flexible anchors, the structure and implantation force of traditional hard anchor implanters are no longer applicable. To this end, a new implant device has emerged in the prior art. The structure of the implant device is a tissue repair delivery system 1000 with an internal threaded shaft tensioning mechanism. A rotatable knob 1002 is mounted on the rear end or proximal end of the handle 1001. A threaded block 1004 is axially mounted along the handle 1001 and is threadedly connected to the inner cavity of the knob 1002. The knob 1002 includes an internal female thread for receiving the threaded block 1004. The suture strand or tensioning suture 220 is attached to the threaded block 1004. The rotation of the knob 1002 causes the threaded block 1004 to move axially proximally, thereby pulling the suture strand. This axial movement tensions the tensioning suture 220. The amount of travel may be limited by a stop or frangible portion (not shown) to provide the appropriate pulling distance and / or force on the tensioning suture and knot.

[0004] After the full suture anchor is implanted, it needs to be pulled in the opposite direction of the implantation, but the above-mentioned implant device only has a one-way implantation operation, and the pulling operation needs to be performed separately, which not only affects the doctor's surgical operation, but also increases the risk of surgical failure for the patient. Therefore, how to overcome the problem in the prior art that the implant device only has a one-way implantation operation after implantation and no reverse pulling has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a full suture anchor implanter to solve the technical problem that the implantation equipment used in the prior art has only a one-way implantation operation and the pulling operation needs to be performed separately, which increases the surgical burden of the doctor and increases the risk of surgical failure.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a full suture anchor implanter, including a handle mechanism and an implant rod, the handle mechanism including a rotary knob, a limit cover and a transmission assembly, the rotary knob is arranged at one end of the limit cover and is rotatably connected to the limit cover, one end of the transmission assembly is arranged on the rotary knob, and the other end of the transmission assembly passes through the limit cover, the implant rod is sleeved on the free end of the transmission assembly and is fixed on the limit cover at the same time, when the rotary knob rotates to drive the transmission assembly to make reciprocating motion in the limit cover, the anchor inside the implant rod is implanted and pulled.

[0007] Optionally, the transmission assembly includes a guide screw and a metal rod, the guide screw is placed on the handle and partially extends to the limit cover, one end of the metal rod is fixed to one end of the guide screw, and the other end of the metal rod is installed in the implant rod. When the handle rotates, the guide screw drives the guide screw to rotate horizontally, while the guide screw reciprocates longitudinally, linking the metal rod to reciprocate longitudinally.

[0008] Optionally, a track groove is provided on the circumference of the guide screw, the track groove is elliptical, a ball is slidably provided in the track groove, a ball hole is provided on the handle, the ball part is placed in the ball hole, and the rotation of the handle drives the ball to slide in the track groove.

[0009] Optionally, a limit baffle is provided in the track groove, and the limit baffle is arranged along the width direction of the track groove.

[0010] Optionally, a slide rail groove is provided on the outer wall of the guide rail screw, and the slide rail groove extends along the length direction of the guide rail screw, and a ridge adapted to the slide rail groove is provided on the inner wall of the limit cover.

[0011] Optionally, the slide rail grooves are arranged in pairs on opposite sides of the guide rail screw, and a wiring groove is provided adjacent to the slide rail groove, and the wiring groove is arranged between the slide rail grooves.

[0012] Optionally, the guide rail screw is provided with a threading hole at the end of the rotary handle, and the threading hole is connected to the wiring groove.

[0013] Optionally, the limit cover includes an upper limit cover and a lower limit cover, the upper limit cover and the lower limit cover are detachably connected, an upper ridge is provided on the inner wall of the upper limit cover, and a lower ridge is provided on the inner wall of the lower limit cover.

[0014] Optionally, an anti-reversal mechanism is provided between the rotary handle and the limiting cover.

[0015] Optionally, the anti-reversal mechanism includes a gear and a spring protrusion, the gear is arranged on the circumference of the end of the handle and is located inside the limit cover, and the spring protrusion is arranged on the side wall of the limit cover.

[0016] The full suture anchor implanter provided by the utility model has the following technical effects:

[0017] This full-suture anchor implanter is mainly composed of a handle mechanism and an implant rod, and the handle mechanism includes a rotary knob, a limit cover and a transmission assembly. The rotary knob is rotatably connected to the limit cover, one end of the transmission assembly is provided on the rotary knob, and the other end passes through the limit cover. The implant rod is sleeved on the free end of the transmission assembly and is fixed on the limit cover at the same time. The utility model converts the rotational motion of the rotary knob into reciprocating motion of the transmission assembly along the axial direction of the limit cover through the cooperation of the transmission assembly and the rotary knob. The doctor only needs to rotate the rotary knob to complete the two operations of implanting the full-suture anchor and pulling and deforming the full-suture anchor with the implant rod, which reduces the doctor's surgical burden and reduces the risk of surgical failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of the full-suture anchor implanter of the present invention;

[0020] Figure 2 yes Figure 1 Front view of the mid-line suture anchor implanter;

[0021] Figure 3 yes Figure 1 Schematic diagram of the internal three-dimensional structure of the full-length suture anchor implanter;

[0022] Figure 4 yes Figure 3 Front view of the mid-line suture anchor implanter;

[0023] Figure 5 yes Figure 4 Cross-sectional view of the mid-line suture anchor implanter along the AA axis;

[0024] Figure 6 yes Figure 1 Schematic diagram of the structure of the handle of the mid-length suture anchor implanter;

[0025] Figure 7 yes Figure 1 Schematic diagram of the structure of the upper limit cover of the mid-length suture anchor implanter;

[0026] Figure 8 yes Figure 1 Schematic diagram of the structure of the lower limit cover of the mid-length suture anchor implanter;

[0027] Figure 9 yes Figure 1 Schematic diagram of the structure of the transmission assembly of the full-length suture anchor implanter;

[0028] Figure 10 yes Figure 1 Schematic diagram of the structure of the implant rod of the full-length suture anchor implanter.

[0029] in, Figures 1-10 :

[0030] 1. Rotating handle; 11. Gear; 12. Ball bearing hole;

[0031] 2. Limit cover; 21. Upper limit cover; 211. Raised ridge; 22. Lower limit cover; 221. Raised ridge; 222. Shrapnel protrusion;

[0032] 3. Implant rod; 31. Connecting block;

[0033] 4. Transmission assembly; 41. Guide rail screw; 411. Track groove; 412. Limit baffle; 42. Metal rod; 43. Ball bearing; 44. Slide rail groove; 45. Wire routing groove; 46. Threading hole;

[0034] 5. Sutures;

[0035] 6. Anchor nails. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0037] As described in the background art, the implantation device used in the prior art has only a one-way implantation operation, and the pulling operation needs to be performed separately, which not only affects the doctor's surgical operation, but also increases the risk of surgical failure for the patient.

[0038] Based on this, the present invention provides a full suture anchor implanter, which converts the rotational motion of the handle into reciprocating motion of the transmission assembly along the axial direction of the limit cover through the cooperation of the transmission assembly and the handle. The doctor only needs to rotate the handle to complete the two operations of implanting the full suture anchor with the implant rod and pulling and deforming the full suture anchor, which reduces the doctor's surgical burden and reduces the risk of surgical failure.

[0039] The following is combined with specific Figure 1-10 The structure of a preferred embodiment of the full suture anchor implanter of the present invention is described in detail.

[0040] like Figure 1-10 As shown, the full suture anchor implanter includes a handle mechanism and an implant rod 3, and the handle mechanism includes a rotary knob 1, a limiting cover 2 and a transmission assembly 4. The rotary knob 1 and the limiting cover 2 both have an accommodating cavity, and the transmission assembly 4 is installed in the accommodating cavity.

[0041] The structure of the rotary handle 1 is a rotating body structure, which is located at one end of the limit cover 2 and is rotatably connected to the limit cover 2, that is, the rotary handle 1 can rotate 360 ​​degrees against the limit cover 2. The limit cover 2 of this embodiment includes an upper limit cover 21 and a lower limit cover 22. A receiving cavity is formed between the upper limit cover 21 and the lower limit cover 22. The upper limit cover 21 and the lower limit cover 22 are connected by buckles and screws. The buckles and screws are located at the two ends of the upper fiber cover and the lower limit cover 22. Figure 7 and Figure 8 shown.

[0042] like Figure 3-5 Shown and Figure 10 As shown, the implant rod 3 is a columnar structure with a certain length. The implant rod 3 is provided with a connecting block 31, which is fixedly installed on the implant rod 3. There is a card slot adapted to the connecting block 31 between the upper limit cover 21 and the lower limit cover 22. The connecting block 31 is inserted into the card slot, thereby realizing the connection and fixation of the implant rod 3 with the upper limit cover 21 and the lower limit cover 22 at the same time.

[0043] The transmission assembly 4 of this embodiment includes a guide rail screw 41 and a metal rod 42. The structure of the guide rail screw 41 is as follows: Figure 3-5 and Figure 9 As shown, the guide screw 41 has a certain length and is installed in the handle 1 and the limit cover 2 at the same time, and slightly extends out of the outside of the handle 1. One end of the metal rod 42 is fixed to the end of the guide screw 41 installed in the upper limit cover 21 and the lower limit cover 22, and the other end of the metal rod 42 is free to extend to the outside of the upper limit cover 21 and the lower limit cover 22. The extended part of the metal rod 42 is installed in the implant rod 3. When the handle 1 rotates to drive the guide screw 41 to rotate horizontally, the guide screw 41 can also make reciprocating motion in the longitudinal direction, linking the metal rod 42 to reciprocate in the longitudinal direction.

[0044] Specifically, the rotation of the handle 1 in this embodiment realizes the longitudinal reciprocating motion of the guide screw 41 in the following manner:

[0045] like Figure 9 As shown, a track groove 41 is provided on the circumference of the guide screw 41, and the track groove 41 is preferably elliptical. The shape of the track groove 41 here is not limited to elliptical, and can also be other shapes. As long as the track groove 41 is located on the outer wall of the guide screw 41, has a closed loop, and extends along the length direction of the guide screw 41, it is within the protection scope of the present invention.

[0046] A ball 43 is provided in the track groove 41. The ball 43 can slide in the track groove 41 under the driving of an external force. A hole 12 for the ball 43 is provided on the handle 1. Figure 3-5 As shown, part of the ball 43 is placed in the ball hole 12, and the remaining part is placed in the track groove 41. When the handle 1 rotates relative to the upper limit cover 21 and the lower limit cover 22, it drives the ball 43 to slide in the track groove 41. The sliding of the ball 43 in the track groove 41 drives the guide screw 41 and the metal rod 42 to reciprocate.

[0047] By designing the slide rail track of the transmission mechanism as an elliptical track groove 41, the movement track of the ball 43 is simplified, so that the reciprocating motion of the implant rod 3 is smooth. In addition, the ridges 221, 211 of the upper limit cover 21 and the ridges 221, 211 of the lower limit cover 22 limit the guide rail screw 41, so that the reciprocating motion of the implant rod 3 is stable.

[0048] In this embodiment, the slide rail groove 44 is set to be elliptical, and its purpose is to convert the rotational motion into reciprocating linear motion. Compared with the cross rail spiral rail, the elliptical track groove 41 has a simpler structure and is easy to produce and process.

[0049] In addition, a limit baffle 412 is provided near the top position at one end of the track groove 41 , and the limit baffle 412 is arranged along the width direction of the track groove 41 . The limit baffle 412 enables the guide rail screw 41 to have a starting point and an end point when performing reciprocating motion.

[0050] Generally, the transmission structure using the track groove 41 and the ball 43 needs to add other mechanisms to control the end position, which makes the structure complicated, increases the number of parts, and increases the cost. The transmission stop of the present application only adds a limit baffle 412 to the slide groove, which not only achieves the stopping effect, but also simplifies the structure and increases the stability of the mechanism.

[0051] like Figure 9As shown, in order to enable relative sliding between the guide rail screw 41 and the upper limit cover 21 and the lower limit cover 22, a slide rail groove 44 is provided on the outer wall of the guide rail screw 41 in this embodiment. The slide rail groove 44 is arranged adjacent to the track groove 41 and extends along the distal direction of the guide rail screw 41, wherein the slide rail grooves 44 are arranged in pairs on opposite sides of the guide rail screw 41, and a wiring groove 45 is provided adjacent to the slide rail groove 44. The wiring groove 45 is located between the slide rail grooves 44, that is, the wiring grooves 45 are also arranged in pairs, and the wiring grooves 45 and the track groove 41 form a cross structure.

[0052] like Figure 7 and Figure 8 As shown, the inner walls of the upper limit cover 21 and the lower limit cover 22 are provided with ridges 221, 211, which extend along the length direction of the upper limit cover 21 and the lower limit cover 22. The ridges 221, 211 are adapted to the slide rail groove 44 on the guide rail screw 41. When the guide rail screw 41 makes reciprocating motion, the ridges 221, 211 slide in the slide rail groove 44, thereby further making the guide rail screw 41 perform stable linear motion relative to the upper limit cover 21 and the lower limit cover 22.

[0053] In order to facilitate the passage of suture 5, Figure 1 As shown, the guide screw 41 has a threading hole 46 at the end of the handle 1, and the threading hole 46 is connected to the wiring groove 45.

[0054] As a preferred embodiment, Figure 1-5 As shown, an anti-reversal mechanism is provided between the rotary handle 1 and the limiting cover 2 , and the anti-reversal mechanism is used to prevent the rotary handle 1 from reversing, thereby affecting the implantation and pulling of the anchor 6 .

[0055] The anti-reverse mechanism specifically includes a gear 11 and a spring protrusion 222. The gear 11 is arranged on the circumference of the end of the handle 1, that is, a circle at the end of the handle 1 has a gear 11 structure, and the spring protrusion 222 is located on the side wall of the lower limit cover 22. In this embodiment, all the convex teeth of the gear 11 structure are deflected in one direction, and the spring protrusion 222 is located between adjacent convex teeth. When the handle 1 is rotated, the gear 11 rotates accordingly, and the convex teeth slide between different adjacent convex teeth.

[0056] The specific process is:

[0057] Manually turn the handle 1, the handle 1 drives the ball 43 to slide in the track groove 41, and the guide screw 41 is linked to reciprocate, and the metal rod 42 is further linked to reciprocate in the implant rod 3. Since the metal rod 42 is connected to the anchor 6 through the suture 5, the anchor 6 installed in the implant rod 3 is implanted or pulled under the action of the suture 5 in the guide screw 41.

[0058] The implantation and pulling of the anchor 6 of the utility model can be performed continuously by directly rotating the handle 1, thus avoiding the need for a separate pulling operation.

[0059] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely for the convenience of describing the present invention and to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model depending on the specific circumstances.

[0061] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A full suture anchor implanter, comprising a handle mechanism and an implant rod, characterized in that: The handle mechanism includes a rotary handle, a limit cover and a transmission assembly. The rotary handle is provided at one end of the limit cover and is rotatably connected to the limit cover. One end of the transmission assembly is provided on the rotary handle, and the other end of the transmission assembly passes through the limit cover. The implant rod is sleeved on the free end of the transmission assembly and is fixed on the limit cover at the same time. When the rotary handle rotates to drive the transmission assembly to perform reciprocating motion in the limit cover, the anchor nail inside the implant rod is implanted and pulled.

2. The full suture anchor implanter according to claim 1, characterized in that: The transmission assembly includes a guide rail screw and a metal rod. The guide rail screw is placed on the handle and partially extends to the limit cover. One end of the metal rod is fixed to one end of the guide rail screw, and the other end of the metal rod is installed in the implant rod. When the handle rotates to drive the guide rail screw to rotate horizontally, the guide rail screw reciprocates longitudinally, which links the metal rod to reciprocate longitudinally.

3. The full suture anchor implanter according to claim 2, characterized in that: The guide rail screw is provided with a track groove in the circumference, the track groove is elliptical, a ball is slidably provided in the track groove, a ball hole is provided on the handle, the ball part is placed in the ball hole, and the rotation of the handle drives the ball to slide in the track groove.

4. The full suture anchor implanter according to claim 3, characterized in that: A limit baffle is provided in the track groove, and the limit baffle is arranged along the width direction of the track groove.

5. The full suture anchor implanter according to claim 2, characterized in that: A slide rail groove is provided on the outer wall of the guide rail screw, and the slide rail groove extends along the length direction of the guide rail screw. A ridge adapted to the slide rail groove is provided on the inner wall of the limit cover.

6. The full suture anchor implanter according to claim 5, characterized in that: The slide rail grooves are arranged in pairs on opposite sides of the guide rail screw, and a wiring groove is provided adjacent to the slide rail grooves, and the wiring groove is arranged between the slide rail grooves.

7. The full suture anchor implanter according to claim 6, characterized in that: The guide rail lead screw is provided with a threading hole at the end of the rotary handle, and the threading hole is communicated with the wiring groove.

8. The full suture anchor implanter according to claim 5, characterized in that: The limit cover comprises an upper limit cover and a lower limit cover, the upper limit cover and the lower limit cover are detachably connected, an upper ridge is provided on the inner wall of the upper limit cover, and a lower ridge is provided on the inner wall of the lower limit cover.

9. The full suture anchor implanter according to any one of claims 1 to 8, characterized in that: An anti-reversal mechanism is provided between the rotating handle and the limiting cover.

10. The full suture anchor implanter according to claim 9, characterized in that: The anti-reversal mechanism includes a gear and a spring protrusion. The gear is arranged on the circumference of the end of the handle and is located inside the limit cover. The spring protrusion is arranged on the side wall of the limit cover.

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