Anchor automatic implantation device

Abstract

The present invention discloses an automatic anchor implantation device, comprising: a gun body, a chuck provided at the head of the gun body and used to mount an anchor inserter, a knocking mechanism for knocking the guide rod of the anchor inserter to implant the anchor into the bone tunnel, a power mechanism for driving the knocking mechanism to move, and a control mechanism for controlling the movement of the power mechanism; a first slide groove for limiting the moving direction and distance of the knocking mechanism is provided in the gun body, the length direction of the first slide groove being provided along the length direction of the clamping surface of the chuck, and the knocking mechanism being movable along the length direction of the first slide groove. The automatic anchor implantation device provided by the present invention can provide knocking along a fixed direction to the guide rod of the anchor inserter during surgery, and the knocking force is uniform, so that the force of each wire anchor implanted into the bone remains highly consistent, reducing the experience threshold and surgical risks of surgical operations, and improving the consistency and safety of the surgery.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to an automatic anchor implantation device. Background Art

[0002] Soft tissue injuries are common in sports medicine. They generally refer to a broad category of traumatic syndromes caused by direct or indirect force, or long-term, chronic strain, to tendons, ligaments, and joint capsules. Common soft tissue injuries include rotator cuff tears, cruciate ligament ruptures, and Achilles tendon ruptures. Mild soft tissue injuries can resolve quickly with proper treatment by a professional. However, severe soft tissue injuries, such as tendon avulsions, ligament tears, or ruptures, are irreversible and require surgical treatment.

[0003] Clinically, different implantable devices are used for different soft tissue injuries. Wire anchors are a commonly used implantable device for soft tissue repair. Wire anchors are commonly used to repair conditions such as rotator cuff tears, knee collateral ligament injuries, and ankle and elbow soft tissue injuries.

[0004] The wire anchor is a very small implant. During the operation, a bone tunnel needs to be punched out in the bone with a punch, and the handle of the anchor inserter is struck with a hammer. The anchor is then implanted under the cortical bone through the anchor inserter to fix the suture to the bone. The suture is then used to firmly fix the avulsed or torn soft tissue to the bone surface, promoting the healing of the soft tissue and bone to achieve a repair effect.

[0005] Existing anchor inserters require knocking on the handle of the anchor inserter to implant the wire anchor. Excessive knocking force or incorrect direction will damage the bone or soft tissue, and too little force cannot complete the implantation. Therefore, a very experienced doctor is required to operate. During the operation, the direction and force of the wire anchor implanted in the bone are affected by the doctor's surgical experience, habits or fatigue level, and it is impossible to maintain high consistency, which increases the risk of the operation.

[0006] In summary, how to provide an automatic anchor implantation device that can reduce surgical risks is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide an automatic anchor implantation device, which can quantify the knocking force during the implantation of the anchor into the human body, reduce the technical requirements for the surgeon, and ensure that the implantation force of the automatic anchor implantation device is not affected by the surgeon's fatigue level, thereby reducing the surgical risk.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] An automatic anchor implantation device comprises: a gun body, a chuck provided at the head of the gun body and used to mount an anchor inserter, a knocking mechanism for knocking a guide rod of the anchor inserter to implant the anchor into a bone tunnel, a power mechanism for driving the knocking mechanism to move, and a control mechanism for controlling the movement of the power mechanism;

[0010] The gun body is provided with a first slide groove for limiting the moving direction and moving distance of the knocking mechanism, the length direction of the first slide groove is arranged along the length direction of the clamping surface of the chuck, and the knocking mechanism is movable along the length direction of the first slide groove;

[0011] The power mechanism and the control mechanism are both arranged in the gun body, and the power mechanism is connected to the control mechanism.

[0012] Preferably, the knocking mechanism is a push rod, which includes a rod structure for contacting the guide rod of the anchor inserter and a head structure for contacting the power mechanism, and the cross-sectional size of the head structure is larger than the cross-sectional size of the rod structure.

[0013] Preferably, a reset spring for resetting the push rod is sleeved on the outer periphery of the rod structure, one end of the reset spring abuts against the chuck, and the other end abuts against the inner side of the head structure.

[0014] Preferably, the power mechanism includes a drive motor for providing power and a transmission mechanism for converting the driving force of the drive motor into a thrust for driving the knocking mechanism to move;

[0015] The driving motor is connected to the control mechanism, and the transmission mechanism is connected to the output end of the driving motor.

[0016] Preferably, the transmission mechanism includes a reduction mechanism, a swing bearing connected to the reduction mechanism, a slider driven to slide by the swing bearing, and a compression piston cylinder for contacting the knocking mechanism;

[0017] The speed reduction mechanism is connected to the driving motor, the swing bearing is connected to the speed reduction mechanism, and the slider is connected to the swing bearing;

[0018] A second sliding groove for installing the slider is provided in the gun body, and the slider moves toward the compression piston cylinder so that the compression piston cylinder drives the push rod to move toward the chuck; the slider moves toward the direction away from the compression piston cylinder so that the compression piston cylinder drives the push rod to move away from the chuck.

[0019] Preferably, the central axis of the slider is collinear with the central axis of the compression piston cylinder.

[0020] Preferably, a buffer spring for buffering is provided between the slider and the gun body, one end of the buffer spring abuts against the gun body, and the other end abuts against the slider.

[0021] Preferably, the slider is a hollow structure, and the outer periphery of the slider fits with the inner side surface of the second sliding groove.

[0022] Preferably, it also includes an energy component for providing electrical energy to the driving motor, and the energy component is arranged in the gun body.

[0023] Preferably, the gun body is an L-shaped structure, and a power switch for controlling the power output of the energy component is provided on the inner side of the connection between the horizontal part and the vertical part of the L-shaped structure.

[0024] The automatic anchor implantation device provided by the present invention comprises: a gun body, a chuck provided at the head of the gun body and used for mounting an anchor inserter, a knocking mechanism for knocking a guide rod of the anchor inserter to implant the anchor into a bone tunnel, a power mechanism for driving the knocking mechanism to move, and a control mechanism for controlling the action of the power mechanism; a first slide groove for limiting the moving direction and moving distance of the knocking mechanism is provided in the gun body, the length direction of the first slide groove being provided along the length direction of the clamping surface of the chuck, and the knocking mechanism being movable along the length direction of the first slide groove; the power mechanism and the control mechanism are both provided in the gun body, and the power mechanism is connected to the control mechanism.

[0025] During use, first connect the wire anchor to the guide rod of the anchor inserter and fix the anchor inserter in the chuck. Usually, the handle of the anchor inserter is set in the chuck, and the wire anchor is placed at the entrance of the bone tunnel. The direction of the wire anchor is adjusted so that the direction of the wire anchor is consistent with the direction of the bone tunnel. The power mechanism is controlled by the control mechanism to drive the knocking mechanism to move along the length direction of the first slide groove and knock the guide rod of the anchor inserter. The control mechanism can control the power mechanism to move back and forth so that the knocking mechanism continuously knocks the guide rod of the anchor inserter until the anchor is implanted in the bone tunnel.

[0026] Compared with the existing technology, the automatic anchor implantation device provided by the present invention can provide knocking in a fixed direction to the guide rod of the anchor inserter during the operation, and can make the knocking force uniform by controlling the action of the power mechanism, so that the force of each wire anchor implanted into the bone maintains a high degree of consistency, and does not change due to the doctor's experience, surgical habits or fatigue, thereby lowering the experience threshold of surgical operations, improving the consistency and safety of the operation, and thus reducing the risk of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0028] Figure 1 This is a cross-sectional schematic diagram of a specific embodiment of the automatic anchor implantation device provided by the present invention.

[0029] Figure 1 middle:

[0030] 1 is the anchor inserter, 11 is the guide rod, 12 is the handle of the anchor inserter, 2 is the chuck, 3 is the push rod, 4 is the compression piston cylinder, 5 is the slider, 6 is the swing bearing, 7 is the gun body, 8 is the drive motor, 9 is the energy component, 10 is the gun handle, 13 is the power switch, 14 is the buffer spring, and 15 is the return spring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] The core of the present invention is to provide an automatic anchor implantation device, which can provide a consistent and uniform percussion force for the anchor to be inserted into the bone tunnel, thereby reducing the risk of surgery.

[0033] Please refer to Figure 1 , Figure 1 This is a cross-sectional schematic diagram of a specific embodiment of the automatic anchor implantation device provided by the present invention.

[0034] The automatic anchor implantation device provided in this specific embodiment includes: a gun body 7, a chuck 2 arranged at the head of the gun body 7 and used to install the anchor inserter 1, a knocking mechanism for knocking the guide rod 11 of the anchor inserter 1 to implant the anchor into the bone tunnel, a power mechanism for driving the knocking mechanism to move, and a control mechanism for controlling the action of the power mechanism; a first slide groove is provided in the gun body 7 for limiting the moving direction and moving distance of the knocking mechanism, the length direction of the first slide groove is arranged along the length direction of the clamping surface of the chuck 2, and the knocking mechanism is movably arranged along the length direction of the first slide groove; the power mechanism and the control mechanism are both arranged in the gun body 7, and the power mechanism is connected to the control mechanism.

[0035] During use, first connect the wire anchor to the guide rod 11 of the anchor inserter 1, and fix the anchor inserter 1 in the chuck 2. Normally, the handle 12 of the anchor inserter is set in the chuck 2, and the wire anchor is placed at the entrance of the bone tunnel. The direction of the wire anchor is adjusted so that the direction of the wire anchor is consistent with the direction of the bone tunnel. The power mechanism is controlled by the control mechanism to drive the knocking mechanism to move along the length direction of the first slide groove and knock the guide rod 11 of the anchor inserter 1. The control mechanism can control the power mechanism to move back and forth so that the knocking mechanism continuously knocks the guide rod 11 of the anchor inserter 1 until the anchor is implanted in the bone tunnel.

[0036] Preferably, the central axis of the chuck 2 , the central axis of the anchor inserter 1 and the central axis of the striking mechanism can be coaxially arranged, and the anchor inserter 1 is installed at the central axis of the chuck 2 .

[0037] It should be noted that the anchor inserter 1 includes a guide rod 11 and an anchor inserter handle 12. During the installation of the anchor inserter 1, the chuck 2 clamps the anchor inserter handle 12, and the guide rod 11 is arranged to pass through the anchor inserter handle 12 so that the knocking mechanism directly knocks the guide rod 11.

[0038] The length direction of the clamping surface of the chuck 2 is the length direction of the anchor inserter 1 after the chuck 2 clamps the anchor inserter 1. Preferably, the central axis of the first slide groove coincides with the central axis of the chuck 2, so that when the knocking mechanism moves along the length direction of the first slide groove, it can knock the guide rod 11 along the length direction of the guide rod 11 to avoid the guide rod 11 being deflected by force.

[0039] Compared with the existing technology, the automatic anchor implantation device provided by the present invention can provide knocking in a fixed direction to the guide rod 11 of the anchor inserter 1 during the operation, and can make the knocking force uniform by controlling the action of the power mechanism, so that the force of each wire anchor implanted into the bone maintains a high consistency, and does not change due to the doctor's experience, surgical habits or fatigue, thereby lowering the experience threshold of surgical operations, improving the consistency and safety of the operation, and thus reducing the risk of surgery.

[0040] Based on the above embodiment, the knocking mechanism can be set as a push rod 3, and the push rod 3 includes a rod structure for contacting the guide rod 11 of the anchor inserter 1 and a head structure for contacting the power mechanism, and the cross-sectional size of the head structure is larger than the cross-sectional size of the rod structure.

[0041] Preferably, the rod structure and the head structure are both cylindrical structures, and the first slide groove is a cylindrical slide groove, and the outer periphery of the head structure is fitted with the inner surface of the first slide groove to limit the moving direction of the push rod 3. Of course, a guide groove can also be provided on the inner wall of the first slide groove, and a guide protrusion that cooperates with the guide groove can be provided on the outer periphery of the push rod 3, or other guide structures that meet the requirements can be determined according to actual conditions and will not be elaborated here.

[0042] On the basis of the above embodiment, in order to enable the knocking mechanism to smoothly reset after knocking the guide rod 11, a reset spring 15 for resetting the push rod 3 can be sleeved on the outer periphery of the rod structure, and one end of the reset spring 15 abuts against the chuck 2, and the other end abuts against the inner side of the head structure.

[0043] When the push rod 3 moves toward the chuck 2, the power mechanism drives the push rod 3 to overcome the elastic force of the return spring 15 until it strikes the guide rod 11, and then the push rod 3 returns to its initial position under the elastic force of the return spring 15 or driven by the power mechanism.

[0044] The specific size, elastic coefficient and other parameters of the return spring 15 need to be determined according to actual conditions and will not be described in detail here.

[0045] Based on the above embodiment, the power mechanism may include a drive motor 8 for providing power and a transmission mechanism for converting the driving force of the drive motor 8 into a thrust for moving the striking mechanism; the drive motor 8 is connected to the control mechanism, and the transmission mechanism is connected to the output end of the drive motor 8.

[0046] During use, the drive motor 8 provides power for the movement of the transmission mechanism, and the transmission mechanism drives the knocking mechanism to move back and forth along the length direction of the first slide groove to achieve continuous knocking of the guide rod 11.

[0047] It should be noted that the transmission mechanism mentioned here can be any mechanical structure that can convert the rotational force of the drive motor 8 into a push-pull force along a linear motion. It can be a cam structure, or a crank-connecting rod structure, or a crank slider structure, etc. Of course, it can also be other structures that meet the requirements. The specific structure will be determined according to the actual situation and will not be elaborated here.

[0048] On the basis of the above embodiment, in order to make the structure of the transmission mechanism more simplified, the transmission mechanism can include a reduction mechanism, a swing bearing 6 connected to the reduction mechanism, a slider 5 driven to slide by the swing bearing 6, and a compression piston cylinder 4 for contacting the knocking mechanism; the reduction mechanism is connected to the drive motor 8, the swing bearing 6 is connected to the reduction mechanism, and the slider 5 is connected to the swing bearing 6; a second sliding groove for installing the slider 5 is provided in the gun body 7, and the slider 5 moves in a direction close to the compression piston cylinder 4 so that the compression piston cylinder 4 drives the push rod 3 to move in a direction close to the chuck 2; the slider 5 moves in a direction away from the compression piston cylinder 4 so that the compression piston cylinder 4 drives the push rod 3 to move in a direction away from the chuck 2.

[0049] During use, the reduction mechanism is connected to the output end of the drive motor 8, the swing bearing 6 is connected to the output end of the reduction mechanism, and the swing bearing 6 is connected to the slider 5. When the swing bearing 6 is driven to rotate by the reduction mechanism, it will drive the slider 5 to slide back and forth along the second slide groove. Figure 1 As shown, when the slider 5 moves toward the direction of the compression piston cylinder 4, it compresses the gas on the right side of the compression piston cylinder 4. Under the action of the compressed gas, the compression piston cylinder 4 moves downward. The downward movement here refers to the movement of the Figure 1 In the direction shown, the push rod 3 is driven to knock the guide rod 11; when the slider 5 moves in the direction away from the compression piston cylinder 4, the gas space on the right side of the compression piston cylinder 4 will increase. Under the action of the gas in the space on the left side of the compression piston cylinder 4, the compression piston cylinder 4 moves to the right, driving the push rod 3 away from the guide rod 11, or the push rod 3 returns to its initial position under the action of the return spring 15.

[0050] It should be noted that the reduction mechanism can be a gear set or other structures that meet the requirements. The specific structure is determined according to actual conditions and will not be elaborated here.

[0051] Preferably, in order to enable the slider 5 to better drive the compression piston cylinder 4 to move, the central axis of the slider 5 can be made collinear with the central axis of the compression piston cylinder 4.

[0052] In order to prevent the slider 5 from directly hitting the gun body 7 when moving away from the compression piston cylinder 4, a buffer spring 14 can be set between the slider 5 and the gun body 7 for buffering. One end of the buffer spring 14 abuts against the gun body 7 and the other end abuts against the slider 5.

[0053] When the slider 5 moves in a direction away from the compression piston cylinder 4, it acts on the buffer spring 14 to avoid direct impact on the gun body 7, making the anchor gun more stable during use.

[0054] Preferably, the slider 5 can be configured as a hollow structure, and the outer periphery of the slider 5 fits with the inner side surface of the second sliding groove.

[0055] On the basis of the above embodiment, in order to enable the drive motor 8 to work smoothly, it may also include an energy component 9 for providing electrical energy to the drive motor 8. The energy component 9 may be a rechargeable battery or a storage battery, which is determined according to actual conditions and will not be elaborated here. Of course, the power line of the drive motor 8 can also be directly led out to connect the power line of the drive motor 8 to an external power supply, which is determined according to actual conditions and will not be elaborated here.

[0056] Preferably, the energy component 9 is arranged at the gun handle 10 of the gun body 7.

[0057] On the basis of the above embodiment, the gun body 7 can be set to an L-shaped structure, specifically as follows Figure 1 As shown, a power switch 13 for controlling the power output of the energy component 9 is provided on the inner side of the connection between the horizontal part and the vertical part of the L-shaped structure.

[0058] It should be noted that the power switch 13 can be a button-type design, or a sliding or screw-type design, which is determined according to actual conditions and will not be elaborated here.

[0059] like Figure 1 As shown, the chuck 2 is arranged at the head of the horizontal part of the gun body 7, and the energy component 9 is arranged inside the vertical part of the cavity.

[0060] The first and second chutes mentioned in this application document are only used to distinguish the different positions and there is no order of precedence.

[0061] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. Any combination of all the embodiments provided by the present invention is within the scope of protection of this invention and will not be described in detail here.

[0062] The above is a detailed introduction to the automatic anchor implantation device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core ideas of the present invention. It should be pointed out that, for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic anchor implantation device, characterized in that: include: A gun body (7), a chuck (2) provided at the head of the gun body (7) and used for mounting an anchor inserter (1), a knocking mechanism for knocking a guide rod (11) of the anchor inserter (1) to implant the anchor into the bone tunnel, a power mechanism for driving the knocking mechanism to move, and a control mechanism for controlling the movement of the power mechanism; A first slide groove is provided in the gun body (7) for limiting the moving direction and moving distance of the knocking mechanism. The length direction of the first slide groove is arranged along the length direction of the clamping surface of the chuck (2). The knocking mechanism is movable along the length direction of the first slide groove. The power mechanism and the control mechanism are both arranged in the gun body (7), and the power mechanism is connected to the control mechanism; The power mechanism comprises a drive motor (8) for providing power and a transmission mechanism for converting the driving force of the drive motor (8) into a thrust for driving the striking mechanism to move; The drive motor (8) is connected to the control mechanism, and the transmission mechanism is connected to the output end of the drive motor (8); The transmission mechanism comprises a speed reduction mechanism, a swing bearing (6) connected to the speed reduction mechanism, a slider (5) driven to slide by the swing bearing (6), and a compression piston cylinder (4) for contacting the knocking mechanism; The speed reduction mechanism is connected to the drive motor (8), the swing bearing (6) is connected to the speed reduction mechanism, and the slider (5) is connected to the swing bearing (6); The knocking mechanism is a push rod (3), and a second slide groove for mounting the slider (5) is provided in the gun body (7). The slider (5) moves in a direction close to the compression piston cylinder (4), so that the compression piston cylinder (4) drives the push rod (3) to move in a direction close to the chuck (2); the slider (5) moves in a direction away from the compression piston cylinder (4), so that the compression piston cylinder (4) drives the push rod (3) to move in a direction away from the chuck (2); The central axis of the chuck (2), the central axis of the anchor inserter (1), and the central axis of the knocking mechanism are coaxially arranged, and the anchor inserter (1) is installed at the central axis of the chuck (2).

2. The automatic anchor implantation device according to claim 1, characterized in that: The push rod (3) comprises a rod structure for contacting the guide rod (11) of the anchor inserter (1) and a head structure for contacting the power mechanism, and the cross-sectional dimension of the head structure is larger than the cross-sectional dimension of the rod structure.

3. The automatic anchor implantation device according to claim 2, characterized in that: A return spring (15) for returning the push rod (3) is sleeved on the outer periphery of the rod structure, one end of the return spring (15) abuts against the chuck (2), and the other end abuts against the inner side of the head structure.

4. The automatic anchor implantation device according to claim 1, characterized in that: The central axis of the slider (5) is collinear with the central axis of the compression piston cylinder (4).

5. The automatic anchor implantation device according to claim 4, characterized in that: A buffer spring (14) for buffering is provided between the slider (5) and the gun body (7); one end of the buffer spring (14) abuts against the gun body (7), and the other end abuts against the slider (5).

6. The automatic anchor implantation device according to claim 1, characterized in that: The slider (5) is a hollow structure, and the outer periphery of the slider (5) fits with the inner side surface of the second sliding groove.

7. The automatic anchor implantation device according to any one of claims 1 to 6, characterized in that: It also includes an energy component (9) for providing electrical energy to the drive motor (8), and the energy component (9) is arranged in the gun body (7).

8. The automatic anchor implantation device according to claim 7, characterized in that: The gun body (7) is an L-shaped structure, and a power switch (13) for controlling the power output of the energy component (9) is provided on the inner side of the connection between the horizontal part and the vertical part of the L-shaped structure.

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