A dura mater suture device integrated with multiple needles under spinal endoscope

Abstract

The present invention provides a dura mater suture device integrated with multiple needles under a spinal endoscope, comprising: at least two suture needles, with suture threads connected thereto, for suturing an incision; a tube portion, internally provided with linkage rods having the same number as that of the suture needles, and the suture needles are connected to the first ends of the linkage rods; a handle portion, internally provided with a driving mechanism connected to the second ends of the linkage rods to drive the linkage rods to enable the suture needles to extend out of or retract into the tube portion. By using this suture device, the operation of multi-needle suturing of the incision can be realized by putting it in once, effectively improving the suturing efficiency and reducing the operation duration. The suture device does not need to be put in and taken out multiple times, which can avoid causing damage to the patient; moreover, only one suture device is consumed to complete the suturing of the required number of needles, so the surgical material cost is lower than that of consuming one suture device for each suture, enabling more patients to afford the treatment.

Description

Technical Field

[0001] This invention application relates to the field of medical devices, and particularly relates to a dura mater suture device integrated with multiple needles under a spinal endoscope. Background Art

[0002] The last procedure of most surgeries is to suture the incision. Suturing the epidermis is relatively simple and can even be done manually; however, for incisions in deeper positions, such as incisions inside human tissues, a suture device, which is a medical device that replaces traditional manual suturing, is needed. For example, dura mater suturing under a spinal endoscope.

[0003] Currently, although the existing suture devices for dura mater suturing under a spinal endoscope can solve the drawbacks of manual suturing, there are still the following problems: 1. The suture device can only be paired with a single suture needle and can only perform one suture each time. If the incision requires multiple sutures, the suture device needs to be inserted and removed multiple times, resulting in low suture efficiency and easy damage to the patient; 2. The suture device and the suture needle are non-detachable, so one suture device is consumed each time a suture is performed, leading to expensive surgical material costs; 3. The suture device cannot be combined with other medical devices. When other medical devices need to enter the patient's body to assist in the operation, the surgical access needs to be enlarged for the other medical devices to enter, and the two medical devices are independent of each other without restraint, making the cooperative operation more difficult. The above problems also occur in other suture devices that require endoscopic suturing.

[0004] Therefore, it is very necessary to develop a dura mater suture device integrated with multiple needles under a spinal endoscope. Summary of the Invention

[0005] The purpose of this invention is to provide a dura mater suture device integrated with multiple needles under a spinal endoscope in view of the above existing problems and deficiencies, so as to effectively solve the problems of low efficiency of existing multiple-needle suturing, easy damage, inconvenient operation, and expensive surgical material costs.

[0006] The technical solution of this invention is realized as follows:

[0007] A dura mater suture device integrated with multiple needles under a spinal endoscope according to this invention is characterized by comprising: at least two suture needles, which are connected with suture threads for suturing an incision; a tube part, which internally contains linkage rods having the same number as the suture needles, and the suture needles are connected to the first ends of the linkage rods; a handle part, which internally contains a driving mechanism connected to the second ends of the linkage rods to drive the linkage rods to make the suture needles extend out of or retract into the tube part.

[0008] In some embodiments, the tube part is partitioned into multiple independent channels, and each channel contains one of the linkage rods.

[0009] In some embodiments, the driving mechanism includes a plurality of driving members, and each driving member drives one of the linkage rods independently; the driving member includes an operating portion disposed outside the handle portion for operation, and a connecting portion disposed inside the handle portion. One end of the connecting portion is connected to the operating portion, and the other end of the connecting portion is connected to the linkage rod.

[0010] Further, the operating portion is a knob or a toggle key. By rotating the knob or pushing the toggle key, the connecting portion is driven to move, and the connecting portion drives the linkage rod to drive the suture needle to extend or retract into the tube portion.

[0011] Furthermore, the toggle key and the connecting portion are connected by a screw. A guiding groove is provided on the housing of the handle portion corresponding to the position of each toggle key. Pushing the toggle key to move along the guiding direction of the guiding groove enables the suture needle to extend or retract into the tube portion.

[0012] In some embodiments, the guiding groove is an L-shaped groove composed of a long end groove and a short end groove that are perpendicular to each other. When the toggle key moves in the long end groove, the suture needle is driven to extend or retract into the tube portion. When the toggle key moves in the short end groove, the tip of the suture needle is driven to deviate from or retract to the center of the tube portion.

[0013] In some embodiments, the handle portion includes a left housing and a right housing. A supporting portion is provided inside the left housing or the right housing. Grooves are formed on the supporting portion corresponding to the positions of each linkage rod, and the linkage rods are placed in the grooves.

[0014] In some embodiments, the driving mechanism includes an operating portion and a switching portion. The switching portion has the same number of gears as the number of suture needles. When the switching portion is in different gears, it is connected to different linkage rods. When the switching portion switches to a certain gear, the operating portion can control the suture needle corresponding to this gear to extend or retract into the tube portion.

[0015] In some embodiments, a thread storage groove is provided at a position near the tip of the suture needle. The head end of the suture thread is fixed in the thread storage groove. The thread storage groove has an open end. By inserting a surgical forceps into the open end, the suture thread can be clamped out of the thread storage groove to separate the suture thread from the suture needle.

[0016] In some embodiments, the outer wall of the tube portion is recessed inward in the radial direction to form a medical device channel. An opening position for placing the medical device into the medical device channel is provided on the handle portion corresponding to the medical device channel.

[0017] The beneficial effects of the present invention are:

[0018] 1. The stapler of the present invention includes at least two suturing needles, so that after the stapler is placed once, multiple stitches can be made on the incision, effectively improving the suturing efficiency, reducing the operation time, and since the stapler does not need to be placed and removed multiple times, it can avoid damaging the patient.

[0019] 2. Since the stapler contains multiple suturing needles, by selecting a stapler with the corresponding number of needles according to the incision requirements, it is possible to complete the suturing of the required number of needles by consuming only one stapler. Therefore, compared with the surgical material cost of consuming one stapler for each stitch, it is lower and can benefit more patients.

[0020] 3. Since the suturing needle can extend or retract into the tube portion, during the suturing process, it can effectively prevent other used or unused suturing needles from interfering with the currently used suturing needle, ensuring a smooth and fast suturing process and convenient operation.

[0021] 4. The stapler of the present invention has strong versatility and is applicable not only to the suture of the dura mater under a spinal endoscope but also to the suture of other incisions inside human tissues.

[0022] 5. Also, since an instrument channel is recessed on the outer wall of the tube portion, other auxiliary medical instruments, such as surgical forceps, knot pusher, wire cutter, etc., can all enter the patient's body through this instrument channel. Therefore, there is no need to expand the surgical access, and the stapler is combined with this medical instrument, so that this medical instrument can quickly and accurately reach the incision for assisting operation, and during the process of putting in or taking out this medical instrument, because of the protection of the peripheral wall surface of the instrument channel, it will not cause damage to the patient.

[0023] The present invention will be further described below with reference to the accompanying drawings. Description of the Drawings

[0024] Figure 1 is a three-dimensional structural schematic diagram of the dura mater stapler with multiple needles integrated under a spinal endoscope of the present invention;

[0025] Figure 2 is an exploded structural schematic diagram of the dura mater stapler with multiple needles integrated under a spinal endoscope of the present invention;

[0026] Figure 3 is a cross-sectional structural schematic diagram of the tube portion in one embodiment;

[0027] Figure 4 is a cross-sectional structural schematic diagram of the tube portion in another embodiment;

[0028] Figure 5 is a three-dimensional structural schematic diagram of another embodiment of the dura mater stapler with multiple needles integrated under a spinal endoscope of the present invention.

[0029] Figure 6 isFigure 5 Schematic diagram of the three-dimensional structure of the suture device used in conjunction with surgical forceps.

[0030] Figure 7 A schematic diagram of the connection relationship between a suture needle and a suture thread in one embodiment;

[0031] Figure 8 A schematic diagram of the structure of the relative positions of the toggle key and the guide groove when the suture needle is in the retracted state;

[0032] Figure 9 It is a structural schematic diagram of the relative positions of the toggle key and the guide groove when the suture needle is in the extended state;

[0033] Figure 10 It is a structural schematic diagram of the relative positions of the toggle key and the guide groove when the suture needle is close to the tube;

[0034] Figure 11 is a schematic diagram of the structure of another suture needle in a state of being extended and used;

[0035] Reference numerals:

[0036] Tube 1;

[0037] Channel 11, equipment channel 12, partition 13;

[0038] handle part 2;

[0039] Guide groove 20, left housing 21, right housing 22, opening 23;

[0040] Linkage rod 3;

[0041] Suture needle 4;

[0042] Cable trough 41;

[0043] Suture 5;

[0044] Driving member 6;

[0045] Toggle key 61, connecting portion 62, screw 63;

[0046] Supporting part 7;

[0047] Groove 71;

[0048] Soft rubber cap 8;

[0049] Surgical forceps 9. DETAILED DESCRIPTION

[0050] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features, which are used to distinguish and describe the features, without order or importance.

[0052] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "cooperate", "be connected", "connect", "install" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The present invention will be described below with reference to the accompanying drawings, which is a spinal endoscope integrated multi-needle dura suture device of the present invention.

[0055] Such as Figure 1 and Figure 2As shown in the figure, the present invention relates to a dura mater suture device integrated with multiple needles under a spinal endoscope, which includes at least two suture needles 4, a tube part 1 and a handle part 2. A suture thread 5 is separately connected to each suture needle 4. A linkage rod 3 with the same number as the suture needles 4 is arranged in the tube part 1. The suture needle 4 is connected to the first end of the linkage rod 3, and the second end of the linkage rod 3 passes through the entire tube part 1 and enters the handle part 2. A driving mechanism is arranged in the handle part 2, and the driving mechanism is connected to the second end of the linkage rod 3. By operating the driving mechanism by a doctor, the linkage rod 3 can be driven to move, and the linkage rod 3 further drives the suture needle 4 connected thereto to extend out or retract into the tube part 1. When the suture needle 4 extends out of the tube part 1, the suture needle 4 can perform a suture operation on the incision; when the suture needle 4 retracts into the tube part 1, the suture needle 4 is hidden in the tube part 1, which can avoid interfering with the use of other suture needles 4, effectively ensuring that each suture process is smooth and fast, and improving the convenience of operation. The suture device of the present invention has strong versatility and is not only applicable to the dura mater suture under a spinal endoscope, but also applicable to the suture of incisions located inside other human tissues, such as suture inside a laparoscope, gastrointestinal suture, etc.

[0056] The suture device of the present invention can be designed into different specifications, and the number of suture needles 4 in each specification is different. It can be a suture device with two suture needles 4, a suture device with three suture needles 4, or a suture device with four or even more suture needles 4. During use, a suture device with a suitable specification is selected according to the size of the patient's incision. Therefore, it can be realized that only one suture device is consumed to complete the suture of the required number of needles. Compared with the existing surgical materials that consume one suture device for each suture, the cost is lower, and more patients can afford treatment. Moreover, during the operation, it can be realized that after the suture device is placed only once, the incision can be sutured with multiple needles, effectively improving the suture efficiency, reducing the operation time, and the suture device does not need to be placed and taken out multiple times, which can avoid causing damage to the patient.

[0057] The multiple linkage rods 3 of the present invention are arranged in an orderly manner in the tube part 1. Therefore, when driving the movement of each linkage rod 3, there will be no movement interference between the linkage rods 3. A better choice is to divide the tube part 1 into multiple independent channels 11, and each channel 11 is for accommodating one linkage rod 3. In this way, each channel 11 is independent, so there will definitely be no mutual interference between the linkage rods 3. Further, support rib plates can be arranged in each channel 11, and the straightness of the movement of the linkage rod 3 in the channel 11 can be better ensured through the support rib plates. If the suture device includes two suture needles 4, then the tube part 1 is divided into left and right channels 11, as Figure 3 shown; if the suture device includes three suture needles 4, then the pipeline is divided into three channels 11, as Figure 4As shown. Each independent channel 11 of the tube part 1 is formed by arranging a partition 13 in the inner diameter of the tube. The partition 13 can be connected and assembled after the tube part 1 is processed and manufactured, or it can be a partition layer directly formed during the processing of the tube part 1.

[0058] During the operation, the tube part 1 of the present invention needs to be inserted into the patient's body. Therefore, the outer diameter of the tube part 1 should not be too large to avoid too large a surgical access. The preferred outer diameter range is 5 mm - 10 mm. On the premise that all the suture needles 4 can be retracted into the tube part 1, the smaller the outer diameter of the tube part 1, the better.

[0059] The driving mechanism of the present invention is mainly used to drive the suture needle 4 to extend or retract into the tube part 1, and can also realize the switching operation of each suture needle 4. Therefore, as long as a driving mechanism that can achieve this purpose can be applied to this stapler. For example, the driving mechanism is composed of a plurality of driving parts 6 with the same number as the number of linkage rods 3. Each driving part 6 drives a linkage rod 3 separately, so the operation will be more simple and clear; for another example, the driving mechanism includes an operation part and a switching part. The switching part has the same number of gears as the number of suture needles 4. By operating the switching part to shift gears, the switching is connected to different linkage rods 3. When the switching part is switched to a certain gear, at this time, the operation part can control the suture needle 4 corresponding to this gear to extend or retract into the tube part 1.

[0060] Specifically, when the driving mechanism is a plurality of driving parts 6, the driving part 6 includes an operation part arranged outside the handle part 2 for operation, and a connecting part 62 arranged inside the handle part 2. One end of the connecting part 62 is connected to the operation part, and the other end is connected to the linkage rod 3. Further, the operation part can be set as a knob or a toggle key 61. By rotating the knob or pushing the toggle key 61 to drive the connecting part 62 to move, the connecting part 62 further drives the linkage rod 3 to drive the suture needle 4 to extend or retract into the tube part 1. Among them, when the operation part is a knob, a gear can be arranged coaxially with the knob. The gear rotates synchronously with the rotation of the knob, and the end of the connecting part 62 connected to the knob is designed as a rack, and the rack meshes with the gear; the other end of the connecting part 62 is fixedly connected to the linkage rod 3. When the doctor rotates the knob, the gear rotates synchronously to drive the rack to move, and the movement of the rack synchronously drives the linkage rod 3 to move, and the linkage rod 3 drives the suture needle 4 to move. Therefore, by rotating the knob clockwise or counterclockwise, the suture needle 4 can be extended or retracted into the tube part 1. When the operation part is a toggle key 61, the toggle key 61 can be directly fixedly connected to the connecting part 62, and the linkage rod 3 is also fixedly connected to the connecting part 62. Then, by pushing the toggle key 61 to move, the connecting part 62 and the linkage rod 3 are driven to move together, so as to realize the movement of the suture needle 4. Therefore, by pushing the toggle key 61 forward or backward, the suture needle 4 can be extended or retracted into the tube part 1.

[0061] In some embodiments, the toggle key 61 and the connecting portion 62 can be connected by a screw 63, as Figure 2 shown; of course, it is also possible that the connecting end of the toggle key 61 is provided with a threaded post, and the connecting portion 62 is provided with a threaded hole, and the connection is realized by screw threading. Similarly, the fixed connection between the connecting portion 62 and the linkage rod 3 can be fixed by a snap connection between a snap and a snap hole, or by a screw threading connection, or the connecting portion 62 can be directly integrally formed with the linkage rod 3, etc.

[0062] Since the toggle key 61 must be exposed outside the handle portion 2 for the doctor to operate it, and the toggle key 61 needs to be pushable, a guiding groove 20 must be provided on the housing of the handle portion 2 corresponding to each toggle key 61. By pushing the toggle key 61 to move along the guiding direction of the guiding groove 20, the suture needle 4 can be extended or retracted into the tube portion 1. In some embodiments, the guiding groove 20 is a strip-shaped groove, and the length direction of the strip-shaped groove is consistent with the telescopic direction of the suture needle 4. Through the guiding groove 20, the toggle key 61 can be pushed to drive the suture needle 4 to linearly extend or retract into the tube portion 1. Since the tube portion 1 accommodates multiple suture needles 4, its diameter is relatively large compared to the suture needle 4 and is likely to block the suture needle 4 under the endoscope. Therefore, in order to more conveniently observe the suture needle 4 and facilitate operating the suture needle 4 for incision suture, in some other embodiments, the guiding groove 20 is designed as an L-shaped groove composed of a vertical long-end groove and a short-end groove. The length direction of the long-end groove is consistent with the telescopic direction of the suture needle 4, and the extending direction of the short-end groove is consistent with the orientation of the tip of the suture needle 4. The initial position of the toggle key 61 is located at the end of the long-end groove away from the short-end groove. When the toggle key 61 is in the initial position, the suture needle 4 is in the retracted state. Such a design can enable the toggle key 61 to drive the suture needle 4 to extend or retract into the tube portion 1 when moving in the long-end groove, and when the toggle key 61 moves in the short-end groove, it drives the tip of the suture needle 4 to deviate from or retract to the center of the tube portion 1. Of course, the guiding direction of the guiding groove 20 does not necessarily have to be consistent with the telescopic direction of the suture needle 4. It can intersect with the telescopic direction of the suture needle 4 at a certain angle, and then using the principle of cooperation with the hypotenuse of a triangle, it can also be achieved that when the toggle key 61 moves in the guiding direction of the guiding groove 20, it drives the suture needle 4 to telescope. Whether it is a strip-shaped groove or an L-shaped groove, in order to better ensure that when the suture needle 4 is extended for the user's suture operation, the suture needle 4 will not retract, an elastic catch can be provided inside the housing of the handle portion 2 corresponding to the terminal position of the guiding groove 20. Through this elastic catch, the connecting portion 62 moved to this position can be caught, so that the toggle key 61 and the connecting portion 62 will not easily automatically return to their original positions, thus ensuring the stability of the suture needle 4 during operation. When it is necessary to retract the suture needle 4, the doctor only needs to apply a certain backward pushing force to the toggle key 61, and the connecting portion 62 can overcome the elastic catch to release the connection, and return to the initial position of the guiding groove 20 normally. At this time, the suture needle 4 retracts into the tube portion 1.

[0063] When the driving mechanism includes an operating part and a switching part, the operating part can be a knob. The knob is arranged outside the housing of the handle part 2, and a main gear is coaxially connected to the inner side of the knob. The main gear extends into the handle part 2. The switching part can be a toggle lever. There is a main chute on the housing of the handle part 2, and sub-chutes corresponding to several gears branch out from one side or both sides of the main chute. When the toggle lever is moved to a certain sub-chute, it is correspondingly switched to a certain gear; a clutch gear is also connected to the inner side of the toggle lever. The clutch gear moves as the toggle lever is moved, and no matter which sub-chute the toggle lever is in, the clutch gear is always combined with the main gear. The second end of the linkage rod 3 is connected with a rack. When the switching part is switched to a certain gear (that is, the toggle lever is in the sub-chute corresponding to this gear), the clutch gear meshes with the rack of the linkage rod 3 at this gear. At this time, by rotating the knob, the rack can be driven to move, so as to drive the linkage rod 3 to move, and further drive the suture needle 4 to extend or retract into the tube part 1.

[0064] The connection between the linkage rod 3 and the suture needle 4 of the present invention can be realized by screwing a stud into a screw hole, or the linkage rod 3 and the suture needle 4 can be integrally formed directly, or they can be connected by riveting or welding, etc. In order to avoid a relatively large diameter of the tube part 1, the diameter of the linkage rod 3 should not be too large either, and it can be the same as the diameter of the suture needle 4. The arrangement of the linkage rod 3 in the tube part 1 can be a longitudinal arrangement, that is, taking the orientation of the entire stapler as a standard, the linkage rod 3 is arranged at intervals up and down in the tube part 1. In such an arrangement, after the suture needle 4 is connected to the linkage rod 3, the hooked part of the suture needle 4 is oriented left and right; the arrangement of the linkage rod 3 in the tube part 1 can also be a transverse arrangement, that is, taking the orientation of the entire stapler as a standard, the linkage rod 3 is arranged at intervals left and right in the tube part 1. In such an arrangement, after the suture needle 4 is connected to the linkage rod 3, the hooked part of the suture needle 4 is oriented up and down.

[0065] In order to facilitate the assembly of components such as the linkage rod 3 during the production and assembly stage, the handle part 2 of the present invention is composed of a left housing 21 and a right housing 22 butt-jointed; further considering that the diameter of the linkage rod 3 is small and the length is long, it is easy to bend and deform. Therefore, a supporting part 7 is provided inside the housing or the right housing 22. Grooves 71 are opened at positions corresponding to each linkage rod 3 on the supporting part 7. The linkage rod 3 is placed in the grooves 71, and is supported and positioned by the bottom of the grooves 71, so as to avoid that most of the linkage rod 3 is in a suspended state and is easy to bend; in addition, there are supporting rib plates in the channel 11 of the tube part 1. The two cooperate to ensure the straightness of the linkage rod 3 and also improve the strength of the suture needle 4.

[0066] In some embodiments, to facilitate the surgical forceps 9 in clamping the suture 5 on the suture needle 4 and to ensure that when the suture needle 4 retracts to the side where it enters the incision, the suture 5 can remain on the other side of the incision, a suture groove 41 is provided at a position near the tip of the suture needle 4, and the head end of the suture 5 is fixed in the suture groove 41. Further, the suture groove 41 has an open end, so that the surgical forceps 9 can be inserted into the open end to clamp the suture 5 out of the suture groove 41, thereby detaching the suture 5 from the suture needle 4. To better ensure that the head end of the suture 5 is not easily detached from the suture groove 41, a soft rubber cap 8 can be connected to the head end of the suture 5. The size of the soft rubber cap 8 is slightly larger than the size of the suture groove 41, and the soft rubber cap 8 is inserted into the suture groove 41 by means of compression deformation, so that the head end of the suture 5 will not easily fall out of the suture groove 41. In addition to using the suture groove 41 to fix the head end of the suture 5, a tapered sleeve can also be connected to the head end of the suture 5. The tapered sleeve can pass through the needle tip of the suture needle 4 and be sleeved on the suture needle 4 near the needle tip, and the tapered sleeve fits closely with the suture needle 4.

[0067] In addition, to avoid unnecessary damage to the patient caused by the operation of repeatedly inserting or removing other auxiliary medical devices. In some embodiments, an instrument channel 1211 for other auxiliary medical devices to enter is further provided on the outer wall of the tube portion 1. The instrument channel 1211 is formed by inward depression from the outer wall of the tube in the radial direction, as Figure 4 shown in one of the embodiments, in this embodiment, a semi-closed arc groove is recessed in the radial direction on one side of the tube. The opening distance of the arc groove is less than the diameter distance of the arc groove, and the diameter of the arc groove is slightly larger than the outer diameter of other medical devices to facilitate the medical device to have a range of movement of deflecting in all directions within the instrument channel 1211. Since the stapler needs to cooperate with the surgical forceps 9 to clamp the end of the suture 5, during the operation, the surgical forceps 9 can be inserted into the patient's body through the instrument channel 1211, so there is no need to expand the surgical access. Moreover, the stapler is combined with the surgical forceps 9, so the surgical forceps 9 can quickly and accurately reach the incision for clamping the suture. And during the process of inserting or removing the surgical forceps 9, due to the protection of the peripheral wall surface of the instrument channel 1211, it will not cause damage to the patient, nor is there a concern that the medical device will accidentally poke or scrape other organs or tissues of the patient too quickly during the insertion or removal process, as Figure 6As shown in the figure, it is the state where the surgical forceps 9 are placed in the instrument channel 1211 for use in conjunction with the stapler. To ensure that medical instruments can be quickly and accurately placed into the instrument channel 1211 from the uppermost end of the instrument channel 1211, an opening 23 for placing the instrument into the instrument channel 1211 is provided at the position of the handle portion 2 corresponding to the instrument channel 1211. The size of the opening 23 is larger than that of the instrument channel 1211, so it is convenient for medical instruments to be smoothly placed into the instrument channel 1211.

[0068] The steps of using the stapler of the present invention during surgery are as follows:

[0069] 1. Select a stapler with an appropriate number of suture needles 4 according to the size of the patient's incision; 2. In the initial state, all the suture needles 4 on the stapler are in the retracted state in the tube portion 1. At this time, insert the tube portion 1 of the stapler into the patient's body and approach the incision position; 3. The doctor operates the driving mechanism to make one of the suture needles 4 extend from the tube portion 1, and then operates the stapler to insert the suture needle 4 from one side of the incision into the tissue and pass through the tissue from the other side of the incision; 4. The doctor inserts the surgical forceps 9 into the patient's body from the instrument channel 1211, and then uses the surgical forceps 9 to clamp the end of the suture thread 5 away from the suture needle 4; 5. The surgical forceps 9 clamp the suture thread 5 and withdraw from the instrument channel, thereby pulling out the head end of the suture thread 5; 6. The doctor operates the driving mechanism to retract the current suture needle 4 back to the insertion side of the incision and retract it into the tube portion 1; then continue to operate the driving mechanism to make one of the suture needles 4 extend from the tube portion 1; 7. Repeat the operations of passing the needle, clamping the end of the thread, and pulling out the head end of the suture thread 5 again; after several stitches are sewn, ensure that the last extended suture needle 4 is also retracted into the tube portion 1, and then remove the stapler from the patient's body; 8. Finally, tie a knot or perform other locking treatments on each suture thread 5 and cut off the excess suture thread 5 to complete the suture operation.

[0070] The following specifically describes specific embodiments. Embodiment 1

[0071] As Figures 1 to 3As shown, the driving mechanism of this embodiment adopts a toggle key 61. Since the suturing device of this embodiment includes three suturing needles 4, the corresponding linkage rod 3, connecting part 62, and toggle key 61 are also three. The handle portion 2 of this embodiment is roughly in the shape of a pistol, including a grip portion for the doctor to hold and a chamber portion located above the grip portion. The tube portion 1 is connected to the front end of the chamber portion, and the chamber portion allows the linkage rod 3 to enter the handle portion 2. In order to facilitate the doctor's operation of the toggle key 61, the three toggle keys 61 of this embodiment are all arranged at a position close to the grip portion. After the doctor holds the grip portion, he can extend his thumb to operate each toggle key 61. Therefore, after entering the chamber portion, the second end of the linkage rod 3 needs to be bent downward 90 degrees to reach the horizontal position where the toggle key 61 is located. The connecting portion 62 of this embodiment is integrally formed with the linkage rod 3, and the connecting portion 62 and the toggle key 61 are connected by a screw 63. Specifically, a screw hole is opened on the end face where the connecting portion 62 and the toggle key 61 are connected, and a stepped hole is opened in the middle of the toggle key 61. The screw 63 passes through the stepped hole and is screwed into the screw hole, thereby realizing a fixed connection between the toggle key 61 and the connecting portion 62. In order to facilitate production and installation, the handle part 2 is formed by connecting the left and right half shells, and a supporting part 7 is provided inside the right shell 22. The supporting part 7 is roughly rectangular, and three grooves 71 are correspondingly opened on the supporting part 7. The three linkage rods 3 are respectively placed in the three grooves 71, and are supported and positioned by the groove bottoms of the grooves 71, so that most of the linkage rods 3 are prevented from being in a suspended state and easily bent. The connection between the pipe part 1 and the handle part 2 can be fixed by bolt connection or clamping.

[0072] The three linkage rods 3 of this embodiment are arranged transversely, and the corresponding pipe portion 1 is also divided into three channels 11. Figure 3 As shown, the three linkage rods 3 are respectively located in the three channels 11. Figure 2As shown, the guiding groove 20 of this embodiment is an L-shaped groove, where the short-end groove is located at the front end of the long-end groove, and the extending direction of the short-end groove is upward. In order to better ensure that when the suture needle 4 is extended during the user's suturing operation, the suture needle 4 will not retract, this embodiment is provided with an elastic clamping position (not shown in the figure) at the end position of the short-end groove (i.e., the terminal position of the guiding groove 20). The connecting portion 62 moved to this position can be clamped by this elastic clamping position, so that the toggle key 61 and the connecting portion 62 will not easily return automatically, ensuring the stability of the suture needle 4 during the suturing operation. In order to avoid mutual interference during operation, the second ends of the three linkage rods 3 are offset front and back, and the positions of the three guiding grooves 20 are also offset up and down. The second end of the linkage rod 3 located on the leftmost side is in the foremost position, and it is aligned with the guiding groove 20 in the uppermost position, that is, the toggle key 61 at the uppermost end can control the telescopic movement of the suture needle 4 on the leftmost side; the second end of the linkage rod 3 in the middle position is in the middle position, and it is aligned with the guiding groove 20 in the middle position, that is, the toggle key 61 in the middle position can control the telescopic movement of the suture needle 4 in the middle; the second end of the linkage rod 3 located on the rightmost side is in the rearmost position, and it is aligned with the guiding groove 20 in the lowermost position, that is, the toggle key 61 at the lowermost end can control the telescopic movement of the suture needle 4 on the rightmost side.

[0073] The suture needle 4 and the linkage rod 3 of this embodiment are integrally formed. A thread storage groove 41 is provided at a position near the tip of the suture needle 4, as Figure 7 shown. The thread storage groove 41 is provided with an open end, so that the surgical forceps 9 can extend into the open end. In this embodiment, a soft rubber cap 8 is connected to the head end of the suture 5. The size of the soft rubber cap 8 is slightly larger than the size of the thread storage groove 41. The soft rubber cap 8 is inserted into the thread storage groove 41 by means of compression deformation, so that the head end of the suture 5 will not easily fall out of the thread storage groove 41. After the surgical forceps 9 enter the open end, the soft rubber cap 8 can be clamped, and by pulling out the soft rubber cap 8, the suture 5 can be clamped out of the thread storage groove 41 to realize the separation of the suture 5 from the suture needle 4.

[0074] When performing a suturing operation, first ensure that all the suture needles 4 on the suturing device are in the state of being retracted into the tube portion 1, as Figure 8 shown. At this time, the tube portion 1 of the suturing device can be slowly inserted into the patient's body until it is close to the incision position; then the doctor's thumb pushes the toggle key 61 in the middle position to move forward along the long-end groove of the guiding groove 20 (specifically, it is okay to push any toggle key 61 first, and there is no need to set a specific order), so that the middle linkage rod 3 drives the middle suture needle 4 to extend from the tube portion 1, as Figure 9As shown; after pushing to the front end of the long end slot, then push the toggle key 61 upwards into the short end slot until it reaches the end of the short end slot, so that the elastic clamping position clamps the connecting part 62. At this time, the needle tip of the suture needle 4 deviates from the center of the tube part 1 and radially extends above the tube part 1, facilitating the doctor to observe the suture needle 4 through the endoscope. As Figure 10 shown; then operate the stapler to insert the suture needle 4 into the tissue from one side of the incision and penetrate out of the tissue from the other side of the incision; then use the surgical forceps 9 to hold the soft rubber cap 8 and pull it out of the hidden wire groove 41 to separate the suture thread 5 from the suture needle 4. Then the surgical forceps 9 remain in the clamping state, and the head end of the suture thread 5 is led out of the patient's body; then the suture needle 4 is withdrawn from the side where it was originally inserted, and then the middle toggle key 61 is retracted to the rear position of the long end slot (i.e., the starting position of the guiding slot 20). At this time, the middle suture needle 4 retracts back into the tube part 1 again; next, change to another toggle key 61 (it can be the upper toggle key 61 or the lower toggle key 61). As Figure 11 shown, it is to push the lower toggle key 61. Similarly, push it to the end position of the short end slot and clamp it. At this time, the suture needle 4 on the left side in the figure extends out and deviates upwards; use this suture needle 4 to perform needle threading again, and then use the surgical forceps 9 to pull the thread end of the suture thread 5 on this suture needle 4 out of the patient's body, and then retract this suture needle 4 and retract it into the tube part 1; then push to the last toggle key 61 (the upper toggle key 61) to achieve the third suture; after all three stitches are sewn, ensure that the last extended suture needle 4 also retracts into the tube part 1, and then take out the stapler from the patient's body; finally, tie a knot or perform other locking treatments on each suture thread 5 and cut off the excess suture thread 5 to complete the suture operation.

[0075] Using this stapler for multi-needle suturing does not require frequent insertion and removal of the stapler. After the stapler is inserted once, the operation of multi-needle suturing can be completed, and the operation is also convenient and clear, so the suture efficiency is effectively improved and the operation time is reduced; moreover, only one stapler is consumed to complete the suturing of the required number of needles, so the surgical material cost is lower than that of consuming one stapler for each suture, enabling more patients to afford treatment. Embodiment 2

[0076] As Figure 4 and Figure 6 shown, for the spinal endoscope integrated multi-needle dura mater stapler in this embodiment, the shape of its handle part 2 is the same as that in Embodiment 1. The differences are as follows:

[0077] In this embodiment, a semi-enclosed arc groove equipment channel 1211 is recessed in the radial direction on one side of the tube 1. The opening distance of the arc groove is smaller than the diameter distance of the arc groove, and the diameter of the arc groove is slightly larger than the outer diameter of other medical equipment, so that the medical equipment can have a range of movement to deflect in all directions in the equipment channel 1211. The handle part 2 is provided with an opening position 23 for the equipment to be placed in the equipment channel 1211 at the position corresponding to the medical equipment channel 1211. The size of the opening position 23 is larger than the equipment channel 1211, so it is convenient for the medical equipment to be smoothly placed in the equipment channel 1211. Therefore, the surgical forceps 9 can be conveniently placed in or taken out of the patient's body through the equipment channel 1211. Since the peripheral wall surface of the equipment channel 1211 is used as protection, the surgical forceps 9 can be quickly placed in or taken out, and can accurately reach the incision to perform the clamping operation, without worrying that the medical equipment will accidentally poke or scrape other organs or tissues of the patient during the placement or removal process too fast.

[0078] like Figure 4 As shown, the tube 1 of this embodiment is divided into two channels 11, that is, the suturing device of this embodiment is provided with two suturing needles 4. Of course, the pipeline can also be divided into three channels 11, such as Figures 8 to 11 The embodiment shown; it is also possible to have four channels 11 of the pipeline, or even more channels 11, as long as there is enough space.

[0079] The driving mechanism of this embodiment can be the same as that of the first embodiment, that is, the toggle key 61 is used to cooperate with the guide groove 20 on the housing of the handle part 2 to realize the extension and retraction of the suture needle 4; or the driving mechanism can be designed to include an operating part and a switching part, the operating part is a knob (not shown in the figure), the knob is arranged outside the housing of the handle part 2, the inner side of the knob is coaxially connected to a main gear (not shown in the figure), and the main gear extends into the handle part 2. The switching part can be a toggle lever (not shown in the figure), the housing of the handle part 2 is provided with a main slide groove (not shown in the figure), one side or both sides of the main slide groove fork out sub-slide grooves corresponding to two gears (not shown in the figure), when the toggle lever is toggled to the first sub-slide groove, it is switched to the first gear position accordingly; the inner side of the toggle lever is also connected to a clutch gear (not shown in the figure), the clutch gear moves with the toggle lever, and no matter which sub-slide groove the toggle lever is in, the clutch gear is always combined with the main gear. The second end of the linkage rod 3 is connected to a rack (not shown in the figure). When the switching part is switched to a certain gear position (that is, the toggle rod is in the sub-slot corresponding to the gear position), the clutch gear is meshed with the rack of the linkage rod 3 corresponding to the gear position. At this time, by turning the knob, the rack can be driven to move, thereby moving the linkage rod 3, and then driving the suture needle 4 to extend or retract into the tube 1.

[0080] When the switching part is switched to the first gear position (i.e., the toggle lever is in the first sub-sliding groove corresponding to this gear position), the clutch gear meshes with the rack of the middle linkage rod 3 corresponding to this gear position. At this time, by rotating the knob, the rack can be driven to move, so that the middle linkage rod 3 moves, and then drives the middle sewing needle 4 to extend or retract into the tube part 1; when the switching part is switched to the second gear position, at this time, by rotating the knob, the adjacent linkage rod 3 can be moved, and then drives the adjacent sewing needle 4 to extend or retract into the tube part 1.

[0081] When performing a suture operation, first ensure that all the sewing needles 4 on the suture device are in the state of being retracted into the tube part 1. At this time, the tube part 1 of the suture device can be slowly inserted into the patient's body until it is close to the incision position; then the doctor switches the switching part to the first gear position (i.e., pushes the toggle lever to make it in the first sub-sliding groove), and then rotates the knob clockwise, so that the middle linkage rod 3 moves, and then drives the middle sewing needle 4 to extend out of the tube part 1; then operate the suture device to insert the sewing needle 4 into the tissue from one side of the incision and penetrate through the tissue from the other side of the incision; then put the surgical forceps 9 into the instrument channel 1211 from the open end of the handle part 2, and then extend it into the patient's body along the instrument channel 1211, and then use the surgical forceps 9 to clip the thread end of the suture 5 or the soft rubber cap 8 away from the sewing needle 4; keep the surgical forceps 9 in the clamping state, and quickly withdraw the surgical forceps 9 from the instrument pipeline, so as to pull the head end of the suture 5 out of the patient's body; then withdraw the sewing needle 4 from the side where it was originally inserted, and then rotate the knob counterclockwise to drive the middle sewing needle 4 to retract back into the tube part 1 again; next, push the switching part to switch it to the second gear position (i.e., push the toggle lever to make it in the second sub-sliding groove), and then rotate the knob clockwise in the same way to make the sewing needle 4 on the left side as shown in Figure 5 shown extend out of the tube part 1; use this sewing needle 4 to perform needle threading again, and then insert the surgical forceps 9 into the instrument pipeline again to pull the thread end of the suture 5 on this sewing needle 4 out of the patient's body, and then withdraw this sewing needle 4 and retract it into the tube part 1; after both needles are sewn, ensure that the last extended sewing needle 4 also retracts into the tube part 1, and then take out the suture device from the patient's body; finally, tie a knot or perform other locking treatments on each suture 5, and cut off the excess suture 5 to complete the suture operation.

[0082] Using this stapler for multi-needle suturing, there is no need to frequently insert and remove the stapler. After the stapler is inserted once, the operation of multi-needle suturing can be completed. Also, since an instrument channel 1211 is recessed in the outer wall of the tube portion 1, other auxiliary medical instruments can enter the patient's body through this instrument channel 1211. Therefore, there is no need to expand the surgical access. Moreover, the stapler is combined with this medical instrument, so this medical instrument can quickly and accurately reach the incision site for assisting operations. At the same time, during the process of inserting or removing this medical instrument, due to the protection of the peripheral wall surface of the instrument channel 1211, it will not cause damage to the patient, and can be quickly inserted or removed, effectively improving the suturing efficiency and reducing the surgical duration. Also, only one stapler is consumed to complete the suturing of the required number of needles, so the surgical material cost is lower compared to consuming one stapler for each suture, enabling more patients to afford treatment.

[0083] In the description of this specification, the descriptions referring to terms such as "embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0084] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dura mater suture device integrated with multiple needles under spinal endoscopy, characterized in that Comprising: At least two suture needles, with suture threads connected thereto, for suturing an incision; A tube portion, internally provided with linkage rods having the same number as the suture needles, the linkage rods corresponding to the suture needles one by one, and each suture needle being connected to the first end of the corresponding linkage rod; A handle portion, internally provided with a driving mechanism connected to the second ends of the linkage rods to drive the linkage rods to cause the suture needles to extend or retract into the tube portion; The driving mechanism includes a plurality of driving members, each driving member individually driving one linkage rod; the driving member includes an operating portion provided outside the handle portion for operation, and a connecting portion provided inside the handle portion, one end of the connecting portion being connected to the operating portion, and the other end of the connecting portion being connected to the linkage rod.

2. The spinal endoscope integrated with multiple needles according to claim 1, wherein The operating portion is a knob or a toggle key, and by rotating the knob or by pushing the toggle key, the connecting portion is driven to move, and the connecting portion drives the linkage rod to drive the suture needle to extend or retract into the tube portion.

3. The spinal endoscope integrated multi-needle dura suture device according to claim 2, wherein, The toggle key is connected to the connecting portion by a screw, and a guiding groove is provided on the housing of the handle portion corresponding to the position of each toggle key, and by pushing the toggle key to move along the guiding direction of the guiding groove, the suture needle is caused to extend or retract into the tube portion.

4. The spinal endoscope integrated multi-needle dura suture device according to claim 3, wherein The guiding groove is an L-shaped groove composed of a long-end groove and a short-end groove that are perpendicular to each other. When the toggle key moves in the long-end groove, the suture needle is driven to extend or retract into the tube portion, and when the toggle key moves in the short-end groove, the tip of the suture needle is driven to deviate from or retract to the center of the tube portion.

5. A dura mater suture device integrated with multiple needles under spinal endoscopy, characterized in that, Comprising: At least two suture needles, with suture threads connected thereto, for suturing an incision; A tube portion, internally provided with linkage rods having the same number as the suture needles, the linkage rods corresponding to the suture needles one by one, and each suture needle being connected to the first end of the corresponding linkage rod; A handle portion, internally provided with a driving mechanism connected to the second ends of the linkage rods to drive the linkage rods to cause the suture needles to extend or retract into the tube portion; The driving mechanism includes an operating portion and a switching portion, the switching portion having the same number of gears as the suture needles, and when the switching portion is in different gears, it is connected to different linkage rods. When the switching portion switches to a certain gear, the operating portion can control the corresponding suture needle to extend or retract into the tube portion.

6. The spinal endoscope integrated multi-needle dura suture device according to claim 1 or 5, characterized in that, The tube portion is partitioned into a plurality of independent channels, and each channel houses one of the linkage rods.

7. The spinal endoscope integrated multi-needle dura suture device according to claim 1 or 5, characterized in that, The handle portion includes a left housing and a right housing, and a supporting portion is provided inside the left housing or the right housing. Grooves are formed on the supporting portion corresponding to the positions of each linkage rod, and the linkage rods are placed in the grooves.

8. The spinal endoscope integrated multi-needle dura suture device according to claim 1 or 5, characterized in that, The suture needle is provided with a suture-thread storage groove near the tip, the head end of the suture thread is fixed in the suture-thread storage groove, and the suture-thread storage groove is provided with an open end. By inserting a surgical forceps into the open end, the suture thread can be clamped out of the suture-thread storage groove to achieve the separation of the suture thread from the suture needle.

9. The spinal endoscope integrated multi-needle dura suture device according to claim 1 or 5, characterized in that, The outer wall of the tube portion is recessed inward in the radial direction to form an instrument channel, and an opening position for placing a medical instrument into the instrument channel is provided on the handle portion corresponding to the instrument channel.

Images