An implantable multi-set fixator meniscus stapler

Abstract

The application relates to the field of meniscus repair surgery, in particular to a meniscus suture device capable of implanting multiple sets of fixers, a suture device body, the suture device body comprising a handle and a positioning tube assembly partially arranged in the handle; a puncture rod, the puncture rod being internally provided with multiple sets of implants, each set of the implants having two, and the puncture rod being internally provided with at least two sets of implants; an auxiliary puncture assembly, the auxiliary puncture assembly comprising a push rod partially arranged in the handle and a sliding rod slidingly arranged in the push rod; wherein the puncture rod is arranged in the sliding rod, and a guide wire for suturing a meniscus and fixing an implant is arranged in the puncture rod. The application has the effects of improving the operation efficiency and reducing the number of times of replacing the suture device.

Description

Technical Field

[0001] This application relates to the field of quality inspection of large pipelines, and in particular to a meniscus suture device that can be implanted with multiple sets of fixation devices. Background Technology

[0002] The meniscus is a crescent-shaped cartilage-like tissue located between the two main bones of the knee joint (femur and tibia). It acts as a cushion, preventing damage to the articular cartilage from impacts and playing a crucial role in maintaining normal knee joint function. With increasing emphasis on physical health and a growing enthusiasm for exercise, sports injuries are also on the rise, with meniscus injuries becoming more common. Currently, meniscus injuries are typically treated with arthroscopic surgery. For acute traumatic meniscus tears and tears in the body or posterior horn, total internal meniscus repair surgery using a total internal meniscus suture device is often employed.

[0003] Currently, traditional meniscus suture devices can only implant one set of implants to suture the meniscus injury. However, for surgeries with larger injuries, one set of implants is insufficient to meet the surgical needs, requiring the use of another set of products for implantation. This undoubtedly prolongs the surgical time, and the wound needs to undergo the implantation process again.

[0004] Regarding the aforementioned techniques, when the meniscus injury is severe, it is usually necessary to replace the second or even third set of sutures during surgery, which causes significant harm to the patient's body and has low surgical efficiency. Summary of the Invention

[0005] To improve surgical efficiency and reduce the number of times the suture device needs to be changed, this application provides a meniscus suture device that can be implanted with multiple sets of fixation devices.

[0006] This application provides a meniscus suture device capable of implanting multiple sets of fixation devices, which adopts the following technical solution: A meniscus suture device capable of implanting multiple sets of fixation devices, comprising: The suture body includes a handle and a positioning tube assembly partially passing through the handle; A puncture rod, wherein multiple sets of implants are disposed within the puncture rod, each set containing two implants, and at least two sets of implants are disposed within the puncture rod; An auxiliary puncture assembly includes a push rod partially disposed within a handle, and a slide rod slidably disposed within the push rod; The puncture rod is inserted inside the slide bar, and a guide wire for suturing the meniscus and fixing the implant is inserted inside the puncture rod.

[0007] By adopting the above technical solution, when suturing the meniscus, a large meniscus tear may be encountered. In this case, one set of implants cannot completely suture the meniscus, and it is necessary to change the suturer for secondary suturing. Changing the suturer will increase the surgical wound on the patient. When using a meniscus suturer that can implant multiple fixation devices, hold the handle, insert the puncture rod at the position to be sutured, push the auxiliary puncture component to fix one implant on the meniscus first, pull out the puncture rod, move the puncture rod to another position to be sutured, insert the puncture rod, and then insert another implant. Repeat the above actions until the meniscus is completely fixed, without the need to change the suturer multiple times, which is convenient and quick.

[0008] Preferably, the end of the puncture rod away from the handle is bent in an arc, and a placement groove is provided at the end of the puncture rod away from the handle, and at least two sets of the implants are placed in the placement groove.

[0009] By adopting the above technical solution, in order to adapt to the normal human body structure, the end of the puncture rod away from the handle is set with an arc. When the puncture rod with the arc is inserted into the meniscus, it is not easy to damage other skin tissue structures. Multiple implants are placed side by side in the placement slot. When in use, the implants are fixed on the meniscus in sequence. For meniscus with larger wounds, complete fixation can also be achieved.

[0010] Preferably, the implant is disposed along the length direction of the placement groove. The implant includes an upper part and a lower part. The upper part is trapezoidal and the lower part is semi-cylinder. The long side of the trapezoid is fixed to the tangent in the length direction of the semi-cylinder. Chamfers are provided at the corners of the upper part and the lower part. An installation hole for sutures to pass through is provided in the length direction of the implant.

[0011] By adopting the above technical solution, when the implant is placed on the puncture rod, the lower semi-cylinder is adapted to the puncture rod, and the upper part is located outside the placement groove. The length of the placement groove determines the number of implants. During installation, the sutures need to be passed through the installation holes one by one, and then the implants are gradually placed into the puncture rod for easy use during surgery.

[0012] Preferably, the diameter of the lower semi-cylinder is the same as the inner diameter of the puncture rod, and a receiving groove is formed along the length of the lower part. The receiving groove is connected to the mounting hole. After the suture passes through one mounting hole, it passes through the receiving groove and exits from another mounting hole on the same implant.

[0013] By adopting the above technical solution, the lower semi-cylinder diameter is the same as the inner diameter of the puncture rod, so that the lower semi-cylinder can be perfectly embedded in the placement groove, preventing the implant from sliding out of the placement groove when it is placed in the placement groove. When installing each implant in the placement groove, the suture is passed through one installation hole and then through another installation hole. After passing through, the guide wire is placed in the receiving groove, and the implant is slid into the placement groove through the lower semi-cylinder. The above steps are repeated to install multiple implants into the placement groove in sequence.

[0014] Preferably, the end of the guidewire away from the implant is provided with a guidewire handle, a drive tooth is installed on the guidewire handle, the drive tooth is sleeved on the guidewire, and a spring is provided at the end of the drive tooth away from the guidewire handle.

[0015] By adopting the above technical solution, when in use, pushing the guide wire handle will push the drive teeth, thereby compressing the spring and achieving the transmission effect.

[0016] Preferably, the push rod is provided with a push rod core, and the guide wire is used in conjunction with the push rod core. The push rod core has multiple teeth at one end near the implant. When the push rod core is pushed, the teeth on the push rod core cannot engage with the drive teeth, which causes the guide wire handle to rotate and push the guide wire forward. Under the action of the spring, an implant is ejected.

[0017] By adopting the above technical solution, during the process of implanting the implant into the human body, the push rod is pushed. At this time, the push rod core inside the push rod is pushed. Since the push rod core also has multiple teeth at the end near the implant, the teeth on the push rod core and the drive teeth cannot be completely matched. The tooth tips will all move along the tooth slope, thereby causing the guide wire handle to rotate. The guide wire handle drives the guide wire forward and pops out the first implant in the installation slot.

[0018] Preferably, the slide rod is provided with a slide rail, and the slide rail is provided with a plurality of through grooves evenly distributed on it.

[0019] By adopting the above technical solution, the slide rail and slide groove not only serve as guides, but also limit the position of the puncture rod during the operation.

[0020] Preferably, a plurality of sliders are evenly arranged on the side wall of the inner core of the push rod near the drive tooth, and the number and position of the sliders correspond to the through groove, and all the sliders can slide in the through groove.

[0021] By adopting the above technical solution, when the slider is in the groove, the puncture rod is limited, making the meniscus suturer more stable. When the slider slides out of the groove, the puncture rod can be activated, allowing the next implant to be inserted.

[0022] Preferably, the slide rail end is provided with a plurality of drive grooves, the drive grooves including a first high point, a second high point, and a low point. The first high point and the second high point are located at the same height, and the second high point and the low point are located on a straight line in the same height direction. The first high point and the low point are connected by an arc surface, and the arc surface is provided with a slide groove along the length direction of the track.

[0023] By adopting the above technical solution, the push rod is pushed forward, and the upper end of the push rod core inside the push rod pushes the drive teeth to move upward. The drive teeth move along the slide rail inside the slide rod, starting from the lowest point of the drive groove and moving upward until they slide to the second highest point. At this time, the guide wire that moves synchronously will implant the implant at the front of the implant.

[0024] Preferably, the positioning tube assembly includes a positioning housing, a pressure block disposed inside the positioning housing and sleeved outside the puncture rod, and a positioning wrench that controls the pressure block to move toward and away from the puncture rod. The positioning wrench controls the pressure block to switch between two states: when the positioning wrench is switched to the open state, the pressure block is separated from the puncture rod; when the positioning wrench is switched to the closed state, the pressure block applies pressure to the puncture rod to fix the puncture rod.

[0025] By adopting the above technical solution, when in use, the positioning wrench controls the pressure block. When the pressure block applies pressure to the puncture rod, the puncture rod is fixed. When the pressure block is separated from the puncture rod, the puncture rod can be extended or retracted.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. When suturing the meniscus, there may be cases where the meniscus tear is large. In such cases, one set of implants may not be enough to completely suture the meniscus, requiring a change of suture device for secondary suturing. Changing suture devices increases the surgical wound on the patient. When using a meniscus suture device that can implant multiple fixation devices, hold the handle, insert the puncture rod at the location to be sutured, push the auxiliary puncture component to fix one implant on the meniscus, pull out the puncture rod, move the puncture rod to another location to be sutured, insert the puncture rod, and then insert another implant. Repeat the above actions until the meniscus is completely fixed. This eliminates the need for multiple suture device changes, making it convenient and quick.

[0027] 2. The lower semi-cylinder has the same diameter as the inner diameter of the puncture rod, which allows the lower semi-cylinder to fit perfectly into the placement groove, preventing the implant from slipping out of the placement groove when it is placed in. When installing each implant in the placement groove, pass the suture through one installation hole and then through the other installation hole. After passing through, place the guide wire into the receiving groove, and slide the threaded implant into the placement groove through the lower semi-cylinder. Repeat the above steps to install multiple implants into the placement groove in sequence.

[0028] 3. During the implantation process, the push rod is pushed, and the push rod core inside the push rod is pushed. Since the push rod core also has multiple teeth at the end near the implant, the teeth on the push rod core and the drive teeth cannot be completely matched. The tooth tips will move along the tooth slope, thereby causing the guide wire handle to rotate. The guide wire handle drives the guide wire forward and ejects the first implant in the installation slot. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a meniscus suture device capable of implanting multiple sets of fixation devices according to an embodiment of this application; Figure 2 This is a cross-sectional schematic diagram of this embodiment; Figure 3 This is an exploded diagram illustrating the structure of the suture device; Figure 4 This is a structural diagram showing the inner core of the push rod.

[0030] Explanation of reference numerals in the attached drawings: 1. Suture device body; 11. Handle; 12. Positioning tube assembly; 121. Positioning shell; 122. Positioning wrench; 2. Puncture rod; 21. Placement groove; 3. Auxiliary puncture assembly; 31. Push rod; 32. Slide rod; 33. Push rod inner core; 34. Through slide groove; 35. Drive groove; 351. First high point; 352. Second high point; 353. Low point; 4. Implant; 41. Upper part; 42. Lower part; 43. Mounting hole; 5. Guide wire; 51. Guide wire handle; 6. Drive tooth. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a meniscus suture device capable of implanting multiple sets of fixation devices. (Refer to...) Figure 1 and Figure 2A meniscus suture device capable of implanting multiple fixation devices includes a suture body 1, a puncture rod 2 inserted within the suture body 1, and an auxiliary puncture assembly 3 for assisting the puncture rod 2. The suture body 1 includes a handle 11 and a positioning tube assembly 12 partially disposed within the handle 11. In an optional embodiment, the handle 11 has anti-slip textures; in another optional embodiment, the handle 11 is fitted with an anti-slip pad. The positioning tube assembly 12 is movable along the length of the handle 11. In an optional embodiment, the positioning tube assembly 12 includes a positioning housing 121, a pressure block disposed within the positioning housing 121 and fitted outside the puncture rod 2, and a positioning wrench 122 that controls the pressure block to move towards and away from the puncture rod 2. The positioning wrench 122 controls the pressure block to switch between two states: when the positioning wrench 122 is in an open state, the pressure block is separated from the puncture rod 2; when the positioning wrench 122 is in a closed state, the pressure block applies pressure to the puncture rod 2, fixing the puncture rod 2. In use, the positioning wrench 122 controls the pressure block. When the pressure block applies pressure to the puncture rod 2, the puncture rod 2 is fixed. When the pressure block is separated from the puncture rod 2, the puncture rod 2 can be extended or retracted.

[0033] In an optional embodiment, the puncture rod 2 contains multiple sets of implants 4, with two implants in each set, and at least two sets of implants 4 are provided in the puncture rod 2. In a preferred embodiment, the end of the puncture rod 2 away from the handle 11 is bent into an arc, and a placement groove 21 is formed at the end of the puncture rod 2 away from the handle 11, in which at least two sets of implants 4 are placed. To adapt to normal human anatomy, the end of the puncture rod 2 away from the handle 11 is curved. When the puncture rod 2 is inserted into the meniscus, it is less likely to damage other skin tissue structures. Multiple sets of implants 4 are placed side by side in the placement groove 21. During use, the implants 4 are fixed to the meniscus in sequence, and even for meniscus wounds that are large, complete fixation can be achieved.

[0034] In an optional embodiment, the implant 4 is disposed along the length of the placement groove 21. The implant 4 includes an upper part 41 and a lower part 42. The upper part 41 is trapezoidal, and the lower part 42 is semi-cylinder. The long side of the trapezoid is fixed to the tangent in the length direction of the semi-cylinder. Chamfers are provided at the corners of the upper part 41 and the lower part 42. The implant 4 has mounting holes 43 for sutures to pass through in the length direction. When the implant 4 is placed on the puncture rod 2, the semi-cylinder of the lower part 42 is adapted to the puncture rod 2, and the upper part 41 is located outside the placement groove 21. The length of the placement groove 21 determines the number of implants 4. During installation, the sutures need to be passed through the mounting holes 43 one by one, and then the implants 4 are gradually placed into the puncture rod 2 for easy use during surgery.

[0035] In a preferred embodiment, the diameter of the semi-cylindrical part 42 is the same as the inner diameter of the puncture rod 2. A receiving groove is formed along the length of the lower part 42, communicating with the mounting hole 43. The suture passes through one mounting hole 43, then through the receiving groove, and exits through another mounting hole 43 on the same implant. The fact that the diameter of the semi-cylindrical part 42 is the same as the inner diameter of the puncture rod 2 ensures that the semi-cylindrical part 42 can be precisely embedded in the placement groove 21, preventing the implant 4 from slipping out of the placement groove 21 when placed. When installing each implant in the placement groove 21, the suture is passed through one mounting hole 43 and then exits through another mounting hole 43. After passing through, the guide wire 5 is placed into the receiving groove, and the implant is slidably installed into the placement groove 21 through the semi-cylindrical part 42. The above steps are repeated to install multiple implants into the placement groove 21 sequentially.

[0036] The auxiliary puncture assembly 3 includes a push rod 31 partially disposed within the handle 11, and a slide rod 32 slidably disposed within the push rod 31. In an optional embodiment, the push rod 31 contains a push rod core 33, which is used in conjunction with the guide wire 5. The push rod core 33 has multiple teeth at its end near the implant 4. When the push rod core 33 is pushed, the teeth on the push rod core 33 cannot engage with the drive teeth 6, causing the guide wire handle 51 to rotate and pushing the guide wire 5 forward. Under the action of the spring, an implant is ejected. During the implantation of the implant into the human body, the push rod 31 is pushed, and the push rod core 33 within the push rod 31 is pushed. Since the push rod core 33 also has multiple teeth at its end near the implant 4, the teeth on the push rod core 33 cannot fully engage with the drive teeth 6, and the tooth tips move along the tooth slope, thereby causing the guide wire handle 51 to rotate. The guide wire handle 51 drives the guide wire 5 forward and ejects the first implant from the mounting slot.

[0037] Optionally, a slide rail is provided inside the slide rod 32, and multiple through grooves 34 are evenly arranged on the slide rail. The slide rail and the through grooves serve both as guides and as limits on the puncture rod 2 during the operation. Multiple sliders are evenly arranged on the side wall of the push rod core 33 near the drive tooth 6. The number and position of the sliders correspond to the through grooves 34, and all sliders can slide within the through grooves 34. When a slider is in the groove, the puncture rod 2 is limited, making the meniscus suturer more stable. When the slider slides out of the groove, the puncture rod 2 can be actuated, allowing the next implant to be inserted.

[0038] When suturing the meniscus, there may be cases where the meniscus tear is large. In such cases, one set of implants may not be enough to completely suture the meniscus, requiring a change of suture device for secondary suturing. Changing the suture device will increase the surgical wound on the patient. When using a meniscus suture device that can implant multiple fixation devices, hold the handle 11, insert the puncture rod 2 at the location to be sutured, push the auxiliary puncture component 3 to fix one implant 4 on the meniscus, pull out the puncture rod 2, move the puncture rod 2 to another location to be sutured, insert the puncture rod 2, and then insert another implant. Repeat the above actions until the meniscus is completely fixed. This eliminates the need to change the suture device multiple times, making it convenient and quick.

[0039] In an optional embodiment, a plurality of drive grooves 35 are evenly provided at the end of the slide rail. The drive grooves 35 include a first high point 351, a second high point 352, and a low point 353. The first high point 351 and the second high point 352 are at the same height, and the second high point 352 and the low point 353 are on a straight line in the same height direction. The first high point 351 and the low point 353 are connected by an arc surface, and the arc surface is provided with grooves along the length of the track. When pushed for the first time, the push rod 31 is pushed forward, and the upper end of the push rod core 33 inside the push rod 31 pushes the drive tooth 6 to move upward. The drive tooth 6 starts to move upward from the through groove 34. At this time, the foremost implant 4 is implanted, and the drive tooth 6 reaches the low point 353. The push rod 31 is pushed forward again, and the drive tooth 6 reaches the second high point 352. At this time, the second implant 4 is ejected.

[0040] The steps for using this meniscus suture gun are as follows: Step 1: Push the handle 11 at the lower end of the positioning tube assembly 12, as in the conventional design, until the positioning tube assembly 12 reaches the appropriate depth to complete the positioning; Step 2: Push the push rod 31 forward. The upper end of the push rod core 33 inside the push rod 31 pushes the drive tooth 6 to move upward. The drive tooth 6 starts to move upward from the through groove 34. At this time, the foremost implant 4 is implanted. Step 3: Push the push rod 31 again. The inner core 33 of the push rod continues to push the drive tooth 6 upward until the second high point 352. At this time, the guide wire 5, which moves synchronously, will implant the second implant 4. At this time, the first group of implants 4 is successfully implanted. At this time, under the elastic rebound of the spring, the guide wire handle 51 will move downward, and the drive tooth 6 and the guide wire 5 will move synchronously. The drive tooth 6 will move along the inner slide rail groove.

[0041] Step 4: Hold the handle 11 below the puncture rod 2 and press down. The inner side of the slide rod 32 is provided with a groove to facilitate the pressing process.

[0042] Step 5: Repeat steps 2 and 3 to implant the second group of implants 4 normally, completing the implantation process.

[0043] The implementation principle of this application embodiment is as follows: When suturing the meniscus, there may be a situation where the meniscus tear is large. In this case, one set of implants cannot completely suture the meniscus. It is necessary to change the suture device for secondary suturing. Changing the suture device will increase the surgical wound on the patient. When using a meniscus suture device that can implant multiple sets of fixation devices, hold the handle 11, insert the puncture rod 2 at the position to be sutured, push the auxiliary puncture component 3 to fix one implant 4 on the meniscus first, pull out the puncture rod 2, move the puncture rod 2 to another position to be sutured, insert the puncture rod 2, and then insert another implant. Repeat the above actions until the meniscus is completely fixed. There is no need to change the suture device multiple times, which is convenient and quick.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An implantable multi-set fastener meniscal stitcher characterized by, include: The suture device body (1) includes a handle (11) and a positioning tube assembly (12) partially inserted inside the handle (11); a puncture rod (2) is provided with multiple sets of implants (4), each set of implants (4) has two pieces, and the puncture rod (2) is provided with at least two sets of implants (4); an auxiliary puncture assembly (3) includes a push rod (31) partially disposed inside the handle (11) and a slide rod (32) slidably disposed inside the push rod (31); wherein the puncture rod (2) is inserted inside the slide rod (32), and a guide wire (5) for suturing the meniscus and fixing the implants is inserted inside the puncture rod (2); The guidewire (5) is provided with a guidewire handle (51) at one end away from the implant. A drive tooth (6) is installed on the guidewire handle (51). The drive tooth (6) is sleeved on the guidewire (5). A spring is provided at one end of the drive tooth (6) away from the guidewire handle (51). The push rod (31) is provided with a push rod core (33). The guide wire (5) is used in conjunction with the push rod core (33). The push rod core (33) has multiple teeth at one end near the implant (4). When the push rod core (33) is pushed, the teeth on the push rod core (33) cannot be matched with the drive teeth (6), which will cause the guide wire handle (51) to rotate and push the guide wire (5) forward. Under the action of the spring, an implant will pop out.

2. The meniscus suture device capable of implanting multiple sets of fixation devices according to claim 1, characterized in that: The end of the puncture rod (2) away from the handle (11) is bent in an arc, and a placement groove (21) is provided at the end of the puncture rod (2) away from the handle (11), and at least two sets of implants (4) are placed in the placement groove (21).

3. The meniscus suture device capable of implanting multiple sets of fixation devices according to claim 2, characterized in that: The implant (4) is arranged along the length direction of the placement groove (21). The implant (4) includes an upper part (41) and a lower part (42). The upper part (41) is trapezoidal and the lower part (42) is semi-cylinder. The long side of the trapezoid is fixed to the tangent in the length direction of the semi-cylinder. Chamfers are provided at the corners of the upper part (41) and the lower part (42). The implant (4) has an installation hole (43) in the length direction for the suture to pass through.

4. The meniscus suture device capable of implanting multiple sets of fixation devices according to claim 3, characterized in that: The diameter of the semi-cylindrical part (42) is the same as the inner diameter of the puncture rod (2). The lower part (42) has a receiving groove along its length. The receiving groove is connected to the mounting hole (43). After the suture passes through one mounting hole (43), it passes through the receiving groove and then exits through another mounting hole (43) on the same implant.

5. The meniscus suture device capable of implanting multiple sets of fixation devices according to claim 1, characterized in that: The slide bar (32) is provided with a slide rail, and a plurality of through grooves (34) are evenly provided on the slide rail.

6. The meniscus suture device capable of implanting multiple sets of fixation devices according to claim 5, characterized in that: Multiple sliders are evenly arranged on the side wall of the inner core (33) of the push rod near the drive tooth (6). The number and position of the sliders correspond to the through groove (34), and all sliders can slide in the through groove (34).

7. The meniscus suture device capable of implanting multiple sets of fixation devices according to claim 5, characterized in that: The slide rail end is uniformly provided with a plurality of drive grooves (35). The drive grooves (35) include a first high point (351), a second high point (352), and a low point (353). The first high point (351) and the second high point (352) are located at the same height. The second high point (352) and the low point (353) are located on a straight line in the same height direction. The first high point (351) and the low point (353) are connected by an arc surface. Slide grooves are provided on the arc surface along the length direction of the slide rail.

8. The meniscus suture device capable of implanting multiple sets of fixation devices according to claim 1, characterized in that: The positioning tube assembly (12) includes a positioning shell (121), a pressure block disposed inside the positioning shell (121) and sleeved outside the puncture rod (2), and a positioning wrench (122) that controls the pressure block to move toward and away from the puncture rod (2). The positioning wrench (122) controls the pressure block to switch between two states: when the positioning wrench (122) is in the open state, the pressure block is separated from the puncture rod (2); when the positioning wrench (122) is in the closed state, the pressure block applies pressure to the puncture rod (2) to fix the puncture rod (2).

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