A sustainably implantable tissue repair device

Abstract

The present application relates to the field of medical device technology, and in particular to a sustainably implantable tissue repair device, which includes a handle and a firing mechanism, wherein the firing mechanism is arranged in the handle, and the sliding handle can trigger the firing mechanism, and also includes a slide tube, a push rod and a magazine; the slide tube is connected to the handle, and a through groove for a fixture to be embedded is provided on the top of the slide tube, the push rod is inserted into the slide tube and is shorter than the slide tube, the push rod is connected to the firing mechanism, and the firing mechanism drives the push rod to slide, and the push rod is used to push the fixture out of the slide tube; the magazine is arranged on the slide tube, and multiple groups of fixtures can be placed in the magazine, and the magazine can sequentially deliver each group of fixtures into the slide tube. The present application has the advantages of being able to effectively solve the disadvantage that the existing meniscus suture device can only implant one group of fixtures at a time, so as to achieve the effect of continuous suturing.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a sustainably implantable tissue repair device. Background Art

[0002] The meniscus is composed of fibrous cartilage, one on the inside and one on the outside, located in the joint space of the knee joint and is an important component of the knee joint. The meniscus has important functions such as absorbing shock, transmitting load, nourishing articular cartilage lubrication, increasing joint contact area, and maintaining joint stability.

[0003] Meniscus injury is relatively common in clinical practice. Injuries to the non-vascularized area are often treated with meniscus resection or shaping, while injuries to the vascularized area are treated with meniscus suture as much as possible. There are two methods for meniscus suturing: outside-to-inside suturing and full-inside suturing. Suturing from outside to inside means that during surgery, a meniscus puncture needle is used to pass through the inner side of the meniscus tear. The suture passes from the outside of the joint through the skin, joint capsule, and anterior horn of the meniscus, and then through the inner edge of the meniscus tear. The suture is pulled into the joint, and then the suture is pulled outside the joint through another meniscus puncture needle. The suture is then tied and fixed. The surgical procedure is relatively complicated. Full-inside suturing means that two needles need to be punctured during the suturing process, and two suture anchors are placed at the outer edge of the meniscus. The thread is pulled and knotted to fix the torn meniscus.

[0004] Among the surgical methods for repairing the meniscus, the full internal suturing technique is widely popular due to its small surgical trauma, short operation time, and short patient recovery time. Currently, special instruments are usually used to perform full internal suturing of the meniscus for injuries to the posterior horn of the meniscus. However, most of the current meniscus sutures are disposable meniscus sutures, and can only push out a set of fixtures. When the patient's meniscus is too severely damaged, multiple sutures are required. The existing meniscus sutures can only be sutured once, so multiple meniscus sutures need to be used in one operation, resulting in waste. Summary of the invention

[0005] In order to effectively solve the drawback of the existing meniscus suture device that only one set of fixation objects can be implanted at a time, so as to achieve the purpose of continuous suturing, the present application provides a continuously implantable tissue repair device.

[0006] The present application provides a sustainable implantable tissue repair device that adopts the following technical solution:

[0007] A sustainably implantable tissue repair device comprises a handle and a firing mechanism, wherein the firing mechanism is arranged in the handle, and sliding the handle can trigger the firing mechanism, and is characterized in that: it also comprises a slide tube, a push rod and a magazine;

[0008] The slide tube is connected to the handle, a through groove is provided on the top of the slide tube for a fixed object to be inserted, the push rod is inserted into the slide tube and is shorter than the slide tube, the push rod is connected to the firing mechanism, the firing mechanism drives the push rod to slide, and the push rod is used to push the fixed object out of the slide tube (3);

[0009] The magazine is arranged on the slide tube, and a plurality of groups of fixing objects can be placed in the magazine, and the magazine can sequentially deliver each group of fixing objects into the slide tube.

[0010] By adopting the above technical solution, during the operation, first a group of fixtures are placed in the slide tube, the free end of the slide tube is inserted into the meniscus, the handle is slid, and the push rod is driven to slide in the slide tube through the firing mechanism, the push rod pushes the fixture out of the slide tube and implants it into the meniscus, and then the meniscus suture device is withdrawn from the joint, and then the magazine delivers the next group of fixtures to the specified position in the slide tube, the magazine is removed, the meniscus suture device is inserted into the joint again, and the fixtures are continuously implanted into the meniscus through the firing mechanism. According to the above operation, multiple groups of fixtures can be continuously implanted into the meniscus. In this way, after a group of fixtures are implanted, the magazine can continue to provide fixtures, and there is no need to replace the meniscus suture device, that is, the purpose of implanting multiple fixtures with one meniscus suture device is achieved, and the disadvantage that the existing meniscus suture device can only implant one group of fixtures at a time is effectively solved, and the purpose of continuous suturing is achieved.

[0011] Optionally, the magazine includes a shell, a pressure plate, a spring top screw and a handle, a cavity for placing a fixed object is formed in the shell, the pressure plate and the spring top screw are both located in the cavity, the pressure plate slides in the cavity, the handle is connected to the pressure plate, and the shell is provided with a sliding groove for the handle to slide along the length direction of the shell, two spring top screws are provided, the two spring top screws are both arranged at the bottom of the shell and respectively located at two ends of the shell, and a fixed object is placed between the spring top screw and the pressure plate.

[0012] By adopting the above technical solution, multiple groups of fixings are placed in the cavity of the shell in sequence in advance. When in use, the grip is pressed down to drive the pressure plate to move downward, and the pressure plate presses the fixings downward. The fixings squeeze the spring top wires on both sides to move away from each other. When the fixings are no longer restricted by the spring top wires, the fixings can be removed from the magazine for use. By pressing the grip down multiple times, each fixing can be pressed out.

[0013] Optionally, the magazine further includes a tension spring, and two ends of the tension spring are respectively connected to the shell and the pressure plate.

[0014] By adopting the above technical solution, after pressing down the handle, under the action of the tension spring, the pressing plate can automatically reset to facilitate pressing down to push out the fixed object next time.

[0015] Optionally, the shell can slide along the length direction of the sliding tube, and a blocking piece is provided at the bottom of the shell. When the fixed object falls from the cavity into the sliding tube, sliding the shell can drive the fixed object to move together.

[0016] By adopting the above technical solution, after the fixed object is pressed out, the fixed object will enter the sliding tube through the through groove at the top of the sliding tube. At the same time, due to the existence of the push rod, the fixed object only partially enters the sliding tube. Under the action of the blocking piece, the sliding shell and the fixed object move together until it moves to the end of the push rod. At this time, the fixed object can completely enter the sliding tube.

[0017] Optionally, a groove is provided at the bottom of the shell, and the sliding tube can be embedded in the groove.

[0018] By adopting the above technical solution, the groove facilitates the positioning of the shell and also facilitates the sliding of the shell.

[0019] Optionally, two tension springs are provided, and the two tension springs are arranged in parallel.

[0020] By adopting the above technical solution, the stability when pressing down the handle can be improved.

[0021] Optionally, the cavity can accommodate at least two fixtures, and the fixtures are arranged in sequence.

[0022] By adopting the above technical solution, a corresponding number of fixtures can be placed according to the number of fixtures required in the operation.

[0023] Optionally, the sliding tube is detachably connected to the adjusting cylinder, and the push rod is detachably connected to the sliding block.

[0024] By adopting the above technical solution, different types of push rods or sliding tubes can be replaced according to actual needs to meet different surgical needs.

[0025] Optionally, the handle is processed with anti-slip patterns.

[0026] By adopting the above technical solution, the anti-slip pattern can increase the friction, increase the stability of the staff during operation, and reduce the possibility of errors.

[0027] Optionally, the internal structure of the sliding tube matches the outer shape of the fixed object.

[0028] By adopting the above technical solution, the sliding tube can limit the fixed object, ensuring that the fixed object can only move inside the sliding tube.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The present application provides a sustainably implantable tissue repair device, which includes a magazine capable of loading multiple groups of fixtures. A cavity is formed in the magazine, a pressure plate is arranged in the cavity, the pressure plate is connected to the top of the magazine through a spring, a spring top wire is arranged at the bottom of the magazine, multiple groups of fixtures are arranged between the spring top wire and the pressure plate, and the pressure plate is connected to a handle. When in use, the handle is pressed down to drive the pressure plate to move downward, and the pressure plate squeezes the fixture downward, and the fixture squeezes the spring top wires on both sides to move away from each other. When the fixture is no longer restricted by the spring top wire, the fixture can be removed from the magazine for use. When the handle is pressed down repeatedly, each fixture can be removed from the magazine in turn, that is, it can be reused. In this way, during surgery, after a group of fixtures are implanted, multiple groups of fixtures are continuously fired through the magazine, and the meniscus suture device can be reused to achieve the purpose of continuous suturing;

[0031] 2. In this application, a firing mechanism is provided, which is used to push the push rod to move, and the movement of the push rod drives the fixed object to move until the fixed object is implanted. The firing mechanism is fired by human control, with high firing accuracy, and can achieve precise control;

[0032] 3. In the present application, a groove is provided at the bottom of the magazine, and the groove can cooperate with the slide tube to enable the magazine to slide on the slide tube. A baffle is also connected to the bottom of the magazine. When the handle is pressed down to press the fixed object, the fixed object will fall into the slide tube. At this time, the magazine is slid, and under the action of the baffle, the fixed object can move along with it until it reaches the designated position for the push rod to be ejected. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the structure of a sustainably implantable tissue repair device in the present application;

[0034] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0035] Figure 3 It is a schematic diagram of the structure of the magazine in this application;

[0036] Figure 4 It is a schematic diagram of the structure of the magazine in this application;

[0037] Figure 5 It is a cross-sectional view of the magazine in the present application.

[0038] Explanation of the reference numerals in the accompanying drawings: 1. handle; 2. firing mechanism; 3. slide tube; 4. push rod; 5. magazine; 51. housing; 52. pressure plate; 53. spring top screw; 54. grip; 55. cavity; 56. tension spring; 57. baffle; 6. through groove; 7. groove; 8. anti-slip pattern; 9. baffle; 10. slide groove. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-5 This application is described in further detail.

[0040] The present application discloses a sustainable implantable tissue repair device, referring to Figure 1 and Figure 2 The sustainably implantable tissue repair device comprises a handle 1, a firing mechanism 2, a slide tube 3, a push rod 4 and a magazine 5. The firing mechanism 2 is arranged in the handle 1, and the slide tube 3 is connected to the handle 1. The sliding handle 1 can fire the firing mechanism 2. A through groove 6 for a fixed object to be embedded is provided at the top of the slide tube 3. The push rod 4 is inserted into the slide tube 3 and is shorter than the slide tube 3. The push rod 4 is connected to the firing mechanism 2. The firing mechanism 2 drives the push rod 4 to slide. The push rod 4 is used to push the fixed object out of the slide tube 3. The magazine 5 is arranged on the slide tube 3. A plurality of fixed objects can be placed in the magazine 5. The magazine 5 can sequentially deliver each fixed object into the slide tube 3.

[0041] Before the operation, a group of fixtures is placed in a designated position in advance, and multiple groups of fixtures are placed in the magazine 5 in sequence. During the operation, the free end of the slide tube 3 is inserted into the meniscus, and the sliding handle 1 drives the push rod 4 to slide in the slide tube 3 through the firing mechanism 2. The push rod 4 pushes the fixture out of the slide tube 3 and implants it into the meniscus. Then, the meniscus suture device is withdrawn from the joint, and then the magazine 5 delivers the next group of fixtures to the designated position in the slide tube 3. The magazine 5 is removed, and the meniscus suture device is inserted into the joint again, and the fixtures are continuously implanted into the meniscus through the firing mechanism 2. In this way, a meniscus suture device can continuously implant multiple fixtures, effectively solving the disadvantage that the existing meniscus suture device can only implant one group of fixtures at a time, and achieving the purpose of continuous suturing.

[0042] Specifically, refer to Figure 3 and Figure 4The magazine 5 includes a shell 51, a pressure plate 52, a spring top wire 53 and a grip 54. A cavity 55 for placing a fixed object is formed in the shell 51. The bottom of the cavity 55 is through-connected to ensure that the fixed object slides out of the magazine 5. Two spring top wires 53 are provided. The pressure plate 52 and the two spring top wires 53 are both located in the cavity 55. The pressure plate 52 slides in the cavity 55. The grip 54 is connected to the pressure plate 52 and is passed through the shell 51. The shell 51 is provided with a slide groove 10 for the grip 54 to slide along the length direction of the shell 51. The two spring top wires 53 are both arranged at the bottom of the shell 51 and are respectively located at both ends of the shell 51. The two spring top wires 53 are arranged opposite to each other, and the fixed object is placed between the spring top wire 53 and the pressure plate 52.

[0043] A plurality of sets of fixtures with sutures are placed in the cavity 55 of the shell 51 in sequence. During the operation, the handle 54 is pressed down to drive the pressure plate 52 to move downward. The pressure plate 52 presses the fixture downward, and the fixture presses the two spring top wires 53 to move away from each other. When the fixture is no longer restricted by the spring top wires 53, the fixture can be removed from the magazine 5 and enter the slide tube 3. By pressing the handle 54 down multiple times, each fixture can be pressed out in sequence, thereby realizing continuous suturing.

[0044] Reference Figure 4 and Figure 5 The magazine 5 further includes a tension spring 56, and the two ends of the tension spring 56 are connected to the housing 51 and the pressure plate 52, respectively. When the grip 54 is pressed down, the pressure plate 52 can be automatically reset under the action of the tension spring 56, so that the fixed object can be pressed out the next time. At the same time, after the pressure plate 52 and the grip 54 are reset, the firing of the fixed object due to accidental touch is avoided, thereby improving safety. In order to ensure the stability of the connection, two tension springs 56 can be provided, and the two tension springs 56 are arranged in parallel.

[0045] Reference Figure 2 and Figure 3 The housing 51 can slide along the length direction of the slide tube 3. A baffle 57 is provided at the bottom of the housing 51. When the fixed object slides out of the cavity 55, the lowest position of the baffle 57 is lower than the highest position of the fixed object. When the fixed object slides out of the cavity 55, it enters the slide tube 3 through the through slot 6 at the top of the slide tube 3. Due to the existence of the push rod 4, the bottom of the fixed object abuts on the push rod 4, that is, only part of the fixed object enters the slide tube 3. The housing 51 slides on the slide tube 3. Under the action of the baffle 9, the housing 51 can drive the fixed object to move to the specified position together.

[0046] The specific surgical procedure is as follows: before the operation, a set of fixtures with sutures are placed in the designated position, and multiple sets of fixtures with sutures are placed in sequence between the spring top wire 53 and the pressure plate 52. During the operation, the end of the slide tube 3 away from the handle 1 is inserted into the meniscus, the handle 1 is slid, and the trigger mechanism 2 is used to move the push rod 4 toward the meniscus. As the push rod 4 moves, the fixture can be pushed to slide in the slide tube 3 until it slides out of the slide tube 3 and is implanted in the meniscus. After that, the meniscus suture device is withdrawn from the joint and the handle 1 is reset. At this time, the grip 54 is pressed down, and the pressure plate 52 moves in the direction close to the spring top screw 53. As the pressure continues to increase, the fixture pushes the two top screws to move away from each other, and then the fixture is released from the cavity 55 and falls between the magazine 5 and the push rod 4. At this time, the sliding magazine 5, under the action of the baffle 57, pushes the fixture to move until it is pushed to the specified position, and then the magazine 5 is removed, and the firing mechanism 2 can be used for firing again. By repeating the above operation, the various fixing positions in the magazine 5 can be implanted into the meniscus in turn, thereby achieving the purpose of continuous suturing.

[0047] The bottom of the housing 51 is provided with a groove 7, and the slide tube 3 can be embedded in the groove 7. The groove 7 facilitates the positioning and fixing of the housing 51, ensures the stability of the sliding process, and facilitates the sliding of the housing 51.

[0048] In this embodiment, the push rod 4 has a semicircular cross section. When the fixed object is pressed out of the magazine 5, it will fall onto the push rod 4. The push rod 4 with a semicircular cross section fits with the slide tube 3 on the one hand, and can just receive the fallen fixed object on the other hand, ensuring the accuracy of the fixed object's posture. The internal structure of the slide tube 3 fits the shape of the fixed object. The slide tube 3 can limit the fixed object, ensuring that the fixed object can only move in the slide tube 3, and ensuring that the fixed object is implanted in the meniscus with an accurate posture.

[0049] Reference Figure 1 and Figure 2 The handle 1 is processed with anti-skid patterns 8, which can increase friction, increase the stability of the staff during operation, and reduce the possibility of errors during operation. At the same time, the handle 1 is also integrally formed with a baffle 9 at one end close to the slide tube 3, which can play a blocking role and facilitate the operation of the staff.

[0050] It should be noted that each fixture needs to be pre-stitched with sutures, that is, a group of fixtures with sutures are placed at the designated position, and multiple groups of fixtures with sutures are placed in the magazine 5 in sequence. The designated position refers to the position of the slide tube 3 close to the push rod 4 when the end of the push rod 4 away from the firing mechanism 2 is closest to the handle 1. After the fixture is placed at this position, the handle 1 is slid, and the push rod 4 achieves the maximum sliding stroke, which can ensure that the fixture is accurately implanted in the meniscus.

[0051] Reference Figure 1 and Figure 2 The slide tube 3 is detachably connected to the handle 1, and the push rod 4 is detachably connected to the firing mechanism 2. In this way, it is convenient to replace the slide tube 3 and the push rod 4. When there is a problem with the slide tube 3 or the push rod 4, it can be quickly replaced in time to ensure the normal operation. Of course, according to actual needs, different models of push rods 4 or slide tubes 3 can be replaced to meet different surgical needs.

[0052] Of course, in this embodiment, the firing mechanism 2 is no longer specifically described, and the firing mechanism 2 is a well-known content in the art. In addition, the handle 1 slides to fire the firing mechanism 2, which is also a well-known technology in the art, and is no longer described in this embodiment.

[0053] The implementation principle of a tissue repair device that can be continuously implanted in the embodiment of the present application is as follows: before the operation, a group of fixed objects with sutures are placed in advance at the designated position, and multiple groups of fixed objects with sutures are placed in sequence between the spring top wire 53 and the pressure plate 52. During the operation, the end of the slide tube 3 away from the handle 1 is inserted into the meniscus, and the slider 21 is slid to make the push rod 4 move in the direction close to the meniscus. With the movement of the push rod 4, the fixed object can be pushed to slide in the slide tube 3 until it slides out of the slide tube 3 and is implanted in the meniscus. After a group of fixed objects are implanted, the handle 54 is pressed down, and the pressure plate 52 moves in the direction close to the spring top wire 53. With the continuous increase of pressure, the fixed object pushes the two top wires to move in the direction away from each other, and then the fixed object is removed from the magazine 5 and falls between the magazine 5 and the push rod 4. At this time, the magazine 5 is slid, and the baffle 57 pushes the fixed object to move until the fixed object is pushed to the designated position, and it can be fired again. In this way, after a group of fixtures are implanted, the magazine 5 can continue to provide fixtures without the need to replace the meniscus suture device, thus achieving the purpose of implanting multiple fixtures with one meniscus suture device, effectively solving the problem that the existing meniscus suture device can only implant one group of fixtures at a time, and achieving the purpose of continuous suturing.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sustainably implantable tissue repair device, comprising a handle (1) and a firing mechanism (2), wherein the firing mechanism (2) is arranged in the handle (1), and sliding the handle (1) can trigger the firing mechanism (2), characterized in that: It also includes a slide tube (3), a push rod (4) and a magazine (5); The slide tube (3) is connected to the handle, a through groove (6) is provided on the top of the slide tube (3) for a fixed object to be embedded, the push rod (4) is inserted into the slide tube (3) and the push rod (4) is shorter than the slide tube (3), the push rod (4) is connected to the firing mechanism (2), the firing mechanism (2) drives the push rod (4) to slide, and the push rod (4) is used to push the fixed object out of the slide tube (3); The magazine (5) is arranged on the slide tube (3), and a plurality of groups of fixed objects can be placed in the magazine (5), and the magazine (5) can sequentially deliver each group of fixed objects into the slide tube (3); The magazine (5) comprises a shell (51), a pressure plate (52), a spring top wire (53) and a grip (54); a cavity (55) for placing a fixed object is formed in the shell (51); the pressure plate (52) and the spring top wire (53) are both located in the cavity (55); the pressure plate (52) slides in the cavity (55); the grip (54) is connected to the pressure plate (52); a slide groove (10) is provided on the shell (51) for the grip (54) to slide along the length direction of the shell (51); two spring top wires (53) are provided; the two spring top wires (53) are both provided at the bottom of the shell (51) and are respectively located at two ends of the shell (51); a fixed object is placed between the spring top wire (53) and the pressure plate (52).

2. The sustainably implantable tissue repair device according to claim 1, characterized in that: The magazine (5) further comprises a tension spring (56), and two ends of the tension spring (56) are respectively connected to the housing (51) and the pressure plate (52).

3. The sustainably implantable tissue repair device according to claim 2, characterized in that: The shell (51) can slide along the length direction of the slide tube (3), and a blocking piece (57) is provided at the bottom of the shell (51). When a fixed object falls from the cavity (55) into the slide tube (3), sliding the shell (51) can drive the fixed object to move together.

4. The sustainably implantable tissue repair device according to claim 3, characterized in that: The bottom of the housing (51) is provided with a groove (7), and the sliding tube (3) can be embedded in the groove (7).

5. The sustainably implantable tissue repair device according to claim 2, characterized in that: Two tension springs (56) are provided, and the two tension springs (56) are arranged in parallel.

6. The sustainably implantable tissue repair device according to claim 1, characterized in that: The cavity (55) can accommodate at least two fixtures, and the fixtures are arranged in sequence.

7. The sustainably implantable tissue repair device according to claim 1, characterized in that: The slide tube (3) is detachably connected to the handle (1), and the push rod (4) is detachably connected to the firing mechanism (2).

8. The sustainably implantable tissue repair device according to claim 1, characterized in that: The handle (1) is processed with anti-slip patterns (8).

9. The sustainably implantable tissue repair device according to claim 1, characterized in that: The internal structure of the sliding tube (3) matches the outer shape of the fixed object.

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