Suturing device and its usage

Abstract

The present invention relates to a suturing device and a method of using the same, and relates to the field of surgical technology, and is used to realize autonomous needle delivery and complete suturing operations at one time. The suturing device of the present invention includes a suturing device base and a needle insertion controller provided with a suturing needle and a suturing thread. The needle insertion controller can autonomously deliver the needle into the suturing device base so that the suturing needle can enter the spiral needle insertion track; and after the suturing needle is pushed from the starting position of the spiral needle insertion track to the ending position of the spiral needle insertion track, the suturing thread can be pulled to complete the suturing of the first target body and the second target body at one time, so the suturing speed is greatly improved, for example, a high-quality operation can be completed in such a short time as 5 minutes, thereby shortening the operation time and improving the success rate of the operation; and because the doctor no longer needs to suturing one stitch at a time, but can complete the suturing operation at one time, the doctor's labor intensity is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical operations, and in particular to a suturing device and a use method thereof. Background Art

[0002] In traditional heart and brain vascular bypass surgery, the suturing of the first target body and the second target body generally needs to be done manually by the doctor, generally by manually suturing the first target body to the second target body one stitch at a time. Therefore, not only is the doctor's labor intensity high, but the suturing speed is slow, resulting in a long operation time. Therefore, a device that can autonomously deliver needles and complete the suturing operation in one go is needed. Summary of the invention

[0003] The invention provides a suturing device and a use method thereof, which are used to realize autonomous needle feeding and complete the suturing operation at one time.

[0004] According to a first aspect of the present invention, the present invention provides a suturing device, comprising a suturing device base and a needle insertion controller provided with a suturing needle and a suture thread;

[0005] The suture device base positions the first target body to a predetermined position on the second target body, and the suture device base is provided with a spiral needle track for limiting the travel track of the suture needle;

[0006] The needle insertion controller is rotatably connected to the stapler base, and a needle insertion channel is provided in the needle insertion controller, and the needle insertion channel is connected to the spiral needle insertion track;

[0007] The needle insertion controller drives the suture needle to move toward the spiral needle insertion track in the needle insertion channel, so that the suture needle is pushed from the starting position of the spiral needle insertion track to the ending position of the spiral needle insertion track, and then the suture thread can be pulled to complete the suturing of the first target body and the second target body at one time.

[0008] In one embodiment, the spiral needle insertion track includes at least three arc-shaped channels, and the at least three arc-shaped channels are distributed in a spiral manner along the circumference of the first target body.

[0009] In one embodiment, adjacent arc-shaped channels correspond to the first target body and the second target body respectively, and the arc-shaped channels match the initial shape of the suture needle so that after the suture needle extends from any arc-shaped channel, it can pass through the first target body and the second target body in sequence and enter another arc-shaped channel adjacent to the arc-shaped channel.

[0010] In one embodiment, the first end of the stapler base is used to contact the second target body, and the stapler base is provided with a through hole extending from its first end to the second end, and the first end is opposite to the second end; the first target body passes through the through hole and contacts the second target body at the first end.

[0011] In one embodiment, the inlet end of each of the arc-shaped channels is arranged on the side wall of the through hole, and the outlet end of each of the arc-shaped channels is arranged on the second end; or

[0012] The outlet end of each arc-shaped channel is arranged on the side wall of the through hole, and the inlet end of each arc-shaped channel is arranged on the second end.

[0013] In one embodiment, the inlet end and the outlet end of each of the arc-shaped channels are not on the same longitudinal section, and the inlet end of each of the arc-shaped channels and the outlet end of another arc-shaped channel adjacent to the arc-shaped channel are on the same longitudinal section.

[0014] In one embodiment, the suture device base is further provided with an initial needle entry channel, the initial needle entry channel is connected to the starting position of the spiral needle entry track, and the suture needle enters the starting position of the spiral needle entry track through the initial needle entry channel;

[0015] The starting position of the spiral needle-entry track is located in the tangential direction of the first arc-shaped channel, so that the suture needle can enter the arc-shaped channel along the tangential direction of the arc-shaped channel.

[0016] In one embodiment, a needle exit channel is also provided on the suture device base, and the needle exit channel is connected to the terminal position of the spiral needle entry track. The terminal position of the spiral needle entry track is located in the tangential direction of the last arcuate channel, so that the suture needle can enter the needle exit channel from the last arcuate channel.

[0017] In one embodiment, a first negative pressure chamber and a second negative pressure chamber are also provided on the stapler base, wherein the first negative pressure chamber is circumferentially arranged around the through hole to fix the first target body in the through hole at a predetermined position on the second target body through negative pressure; and the second negative pressure chamber is arranged at the second end of the stapler base to fix one side of the second target body to facilitate suturing.

[0018] In one embodiment, the stapler base is also provided with a first negative pressure tube connected to the first negative pressure chamber and a second negative pressure tube connected to the second negative pressure chamber, and the first negative pressure tube and the second negative pressure tube are both connected to the vacuum source outside the stapler base.

[0019] In one embodiment, the stapler base is a split structure.

[0020] In one embodiment, the stapler base includes a first base and a second base, and the first base and the second base are connected into a whole through a locking device.

[0021] In one embodiment, the needle insertion controller comprises:

[0022] a spool on which a suture needle and suture thread are wound;

[0023] a rotating arm, which is rotatably connected to the stapler base; and

[0024] A needle inserter housing, the lower end of which is rotatably connected to the rotating arm, the upper end of which is connected to the thread shaft, and the needle insertion channel is respectively arranged in the rotating arm and the needle inserter housing;

[0025] The needle insertion drive unit is connected to the needle insertion device housing. When the suture needle moves in the needle insertion channel and passes over the needle insertion drive unit, the needle insertion drive unit drives the suture needle to enter the spiral needle insertion track, and the suture needle drives the suture thread to enter the spiral needle insertion track to complete the suturing operation.

[0026] In one embodiment, the needle insertion drive unit comprises:

[0027] A needle-feeding twisting wheel, at least a portion of which is arranged on the outside of the needle-feeding device housing to facilitate the operation of the needle-feeding twisting wheel;

[0028] A needle insertion driven wheel, which is arranged in the needle insertion device housing, wherein the axes of the needle insertion twisting wheel and the needle insertion driven wheel are parallel to each other and are respectively arranged on both sides of the needle insertion channel; and

[0029] A passive wheel compression spring, one end of which is connected to the inner wall of the needle inserter housing, and the other end of which is connected to the needle insertion passive wheel. When the passive wheel compression spring is in an extended state, the passive wheel compression spring is pressed toward the needle insertion twist wheel. When the suture needle enters between the needle insertion twist wheel and the needle insertion passive wheel, the passive wheel compression spring is compressed, thereby keeping the needle insertion passive wheel in contact with the suture needle.

[0030] In one embodiment, a needle insertion damping end cap is disposed at the upper end of the needle inserter housing, and the spool is connected to the needle insertion damping end cap, thereby providing a damping force during needle insertion.

[0031] In one embodiment, the rotating arm comprises:

[0032] A first rotating arm, a spherical groove is provided at a lower end thereof, and the spherical groove forms a spherical hinge with the stapler base; and

[0033] The lower part of the second rotating arm is rotatably connected to the upper part of the first rotating arm, and the upper part of the second rotating arm is rotatably connected to the needle inserter housing.

[0034] In one embodiment, a spherical joint is further provided on the upper side of the stapler base, and the spherical joint is disposed in the spherical groove.

[0035] In one embodiment, at least a portion of the lower portion of the second rotating arm overlaps with at least a portion of the upper portion of the first rotating arm, a first adjustment groove is provided at the upper portion of the first rotating arm, and a second adjustment groove corresponding to the first adjustment groove is provided at the lower portion of the second rotating arm, and the first adjustment groove and the second adjustment groove are connected by fasteners.

[0036] In one embodiment, at least a portion of the upper portion of the second rotating arm overlaps with at least a portion of the lower portion of the needle inserter housing, a third adjustment slot is provided at the upper portion of the second rotating arm, a fourth adjustment slot is provided at the lower portion of the needle inserter housing, and the third adjustment slot and the fourth adjustment slot are connected by fasteners.

[0037] In one embodiment, the first adjustment groove and the second adjustment groove are both configured as arc-shaped grooves symmetrically arranged with respect to the needle insertion channel.

[0038] In one embodiment, the third adjustment groove and the fourth adjustment groove are both constructed as arc-shaped grooves symmetrically arranged with respect to the needle insertion channel.

[0039] In one embodiment, a negative pressure channel is further provided in the needle advancement controller, and the negative pressure channel is used to supply vacuum to the stapler base.

[0040] In one embodiment, a conversion valve is further provided on the needle insertion controller, and the conversion valve is connected to the negative pressure channel.

[0041] According to a second aspect of the present invention, the present invention provides a method for using a suturing device, comprising the following steps:

[0042] S10: positioning the first target body at a predetermined position on the second target body through the negative pressure adsorption effect of the stapler base;

[0043] S20: adjusting the relative position between the stapler base and the needle controller for easy observation and operation;

[0044] S30: Pushing the suture needle into the initial needle insertion channel through the needle insertion controller;

[0045] S40: extending the suture needle from the initial needle insertion channel and entering the spiral needle insertion track from the starting position of the spiral needle insertion track;

[0046] S50: allowing the suture needle to pass through each arc-shaped channel of the spiral needle-entry track in sequence;

[0047] S60: making the suture needle enter the needle outlet channel from the end position of the spiral needle entry track;

[0048] S70: A portion of the suture needle extends out of the needle exit channel, and the suture needle is pulled so that the suture thread is pulled along the walking track of the suture needle to complete the suturing of the first target body and the second target body at one time.

[0049] In one embodiment, step S30 includes the following sub-steps:

[0050] S31: inserting the suture needle on the spool into the needle entry channel;

[0051] S32: When the suture needle passes over the needle insertion twist wheel, the needle insertion twist wheel is rotated to drive the needle insertion passive wheel to rotate in a direction opposite to its rotation direction, thereby causing the suture needle to enter the initial needle insertion channel.

[0052] Compared with the prior art, the advantages of the present invention are: the needle can be autonomously fed into the suture device base through the needle insertion controller so that the suture needle can enter the spiral needle insertion track; and after the suture needle is pushed from the starting position of the spiral needle insertion track to the ending position of the spiral needle insertion track, the suture thread can be pulled to complete the suturing of the first target body and the second target body at one time, so the suturing speed is greatly improved. For example, a high-quality operation can be completed in such a short time as 5 minutes, thereby shortening the operation time and improving the success rate of the operation; and because the doctor no longer needs to sew one stitch at a time, but can complete the suturing operation at one time, the doctor's labor intensity is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0054] Figure 1 is a schematic structural diagram of a suturing device in an embodiment of the present invention;

[0055] Figure 2 is an axial cross-sectional view of a stapler in an embodiment of the present invention;

[0056] Figure 3 A schematic diagram of the trajectory of the suture thread in an embodiment of the present invention;

[0057] Figure 4 Schematic diagram of the structure of the stapler control handle in the embodiment of the present invention.

[0058] Reference numerals:

[0059] 100- suture device base; 200- spiral needle track; 300- first target body; 400- second target body; 500- suture needle;

[0060] 210-arc channel; 110-through hole; 120-initial needle entry channel; 130-needle exit channel; 140-first negative pressure chamber; 150-second negative pressure chamber; 160-spherical joint; 170-locking device; 180-first negative pressure tube; 190-second negative pressure tube;

[0061] 600-needle controller;

[0062] 610- bobbin; 611- needle damping end cap;

[0063] 620-rotating arm; 621-first rotating arm; 621a-spherical groove; 621b-first adjusting groove;

[0064] 622-second rotating arm; 622a-second adjusting slot; 622b-third adjusting slot; 623-fastener;

[0065] 630-needle inserter housing; 631-needle inserter channel; 632-fourth adjustment slot;

[0066] 640-needle feeding drive unit; 641-needle feeding twisting wheel; 642-needle feeding passive wheel; 643-passive wheel compression spring;

[0067] 650-negative pressure channel; 651-negative pressure main pipeline;

[0068] 660-Switchover valve. DETAILED DESCRIPTION

[0069] The present invention will be further described below in conjunction with the accompanying drawings.

[0070] like Figure 1-4 As shown, according to the first aspect of the present invention, the present invention provides a suturing device, for example, a suturing device used in a vascular bypass operation. The suturing device includes a suturing device base 100 and a needle controller 600. Specifically, the suturing device base 100 positions the first target body 300 to a predetermined position on the second target body 400 through negative pressure adsorption.

[0071] Among them, the first target body 300 can be, for example, an artificial blood vessel, and the second target body 400 can be, for example, a native blood vessel with a lesion, wherein the diameter of the native blood vessel can be 3-6 mm. Therefore, the suturing device of the present invention can complete the suturing of micro-vessels, which is impossible for the existing large blood vessel anastomosis device, and thus can meet the clinical needs of heart bypass and brain bypass. Therefore, the suturing device of the present invention can be suitable for the suturing operation of the second target body with a diameter of 3-6 mm, and therefore, compared with the existing vascular anastomosis device, the suturing device of the present invention has significant advantages in coronary artery bypass and cerebrovascular bypass surgery.

[0072] The two ends of the first target body 300 need to be sutured to the diseased part of the second target body 400 respectively, so as to play the role of an artificial blood vessel replacing the diseased part. Therefore, the axial direction of the first target body 300 is not parallel to the axial direction of the second target body 400. The end of the first target body 300 can be placed vertically on the side wall of the second target body 400, so that the end of the first target body 300 and the axial direction of the second target body 400 are perpendicular to each other.

[0073] The needle insertion controller 600 is rotatably connected to the suture device base 100, and a needle insertion channel 631 is provided in the needle insertion controller 600. A spiral needle insertion track 200 for limiting the movement track of the suture needle 500 is provided on the suture device base 100, and the needle insertion channel 631 is connected to the spiral needle insertion track 200. The needle insertion controller 600 drives the suture needle 500 to move toward the spiral needle insertion track 200 in the needle insertion channel 631, so that the suture needle 500 is pushed from the starting position of the spiral needle insertion track 200 to the end position of the spiral needle insertion track 200, and then the suture thread can be pulled to complete the suture of the first target body 300 and the second target body 400 at one time.

[0074] Furthermore, the spiral needle insertion track 200 can be used to allow the suture needle 500 used for suturing to be inserted in a spiral form in the circumferential direction of the first target body 300, so that after the suture needle 500 is pushed from the starting position of the spiral needle insertion track 200 to the ending position of the spiral needle insertion track 200, the suture thread can be pulled to complete the suturing of the first target body 300 and the second target body 400 at one time.

[0075] Figure 3The suture needle 500 shown is a schematic diagram in the initial needle insertion channel 120 described below. Since the initial needle insertion channel 120 is tubular, the suture needle 500 is elongated in the initial needle insertion channel 120, but since the suture needle 500 is made of memory alloy, high elastic stainless steel or other metal materials with strong recovery, after the suture needle 500 is pushed out of the initial needle insertion channel 120, the suture needle 500 can return to its initial shape. The suture needle 500 is wound on the needle roller in the initial state, so the initial state of the suture needle 500 can also be spiral.

[0076] Therefore, the present invention adopts the principle of spiral track, uses the pre-shaped suture needle 500 to move in the spiral track, simulates the needle distance and stitch shape of manual suture, drives the suture thread to suture the first target body 300 to the second target body 400, and can greatly improve the suture speed and reduce the doctor's labor intensity. The suture process completely simulates the process of manual suture, so no other materials and components are introduced, thereby reducing the probability of restenosis of the blood vessel.

[0077] like Figure 2 and 3 As shown, the spiral needle insertion track 200 of the present invention will first be described in detail.

[0078] The spiral needle insertion track 200 includes at least three arcuate channels 210, which are spirally distributed along the circumference of the first target body 300, and each arcuate channel 210 is evenly distributed on the circumference of the first target body 300, so that the suture needle 500 can be inserted evenly, and the suture needle distance and suture force can be kept consistent, so as to improve the success rate of the operation.

[0079] More specifically, for example, eight arc-shaped channels 210 may be provided, and the following description will be made by taking eight arc-shaped channels 210 as an example. It is understandable that the number of arc-shaped channels 210 may be selected according to the diameter of the second target body 400. For example, for a second target body 400 with a larger diameter, the number of arc-shaped channels 210 may be adaptively increased; for a second target body 400 with a smaller diameter, the number of arc-shaped channels 210 may be adaptively reduced, because the more arc-shaped channels 210 there are, the smaller the stitch length of the suture.

[0080] The adjacent arc-shaped channels 210 correspond to the first target body 300 and the second target body 400. Since the suture needle 500 needs to extend from one arc-shaped channel 210 and pass through the first target body 300 and the second target body 400 respectively, the corresponding part between the adjacent arc-shaped channels 210 is a part of the first target body 300 and the second target body 400.

[0081] The arcuate channel 210 matches the initial shape of the suture needle 500. For example, the shape of the arcuate channel 210 is the same as the shape of a portion of the suture needle 500, so that after the suture needle 500 extends from any arcuate channel 210, it can pass through the first target body 300 and the second target body 400 in sequence and enter another arcuate channel 210 adjacent to the arcuate channel 210.

[0082] Since the spiral needle track 200 has a stable structure, as long as the shape of the suture needle 500 is the same as the shape of the arc channel 210 in the spiral needle track 200, the suture needle 500 will pass through the spiral needle track 200 from the starting position to the ending position and complete a circle of suturing.

[0083] The first end (eg Figure 2 The lower end shown in FIG. 1 is used to contact the second target body 400, and the stapler base 100 is provided with a plurality of Figure 2 The through hole 110 extends from the upper end (as shown in FIG. 1 ), the first target 300 passes through the through hole 110 and contacts the second target 400 at the first end.

[0084] Since the suture needle 500 enters the arcuate channel 210 from the entrance end of one of the arcuate channels 210 and extends from the exit end thereof, the extended suture needle 500 passes through a portion of the first target body 300 and the second target body 400, and then enters the next arcuate channel 210 adjacent to the arcuate channel 210 (i.e., one of the needles used for suturing during artificial suturing), and the above process is repeated until the suture needle 500 has circled the circumference of the first target body 300 (e.g., Figure 2 , showing the walking track of the suture needle 500). Therefore, the inlet end of each arc-shaped channel 210 is arranged on the side wall of the through hole 110, and the outlet end of each arc-shaped channel 210 is arranged on the second end. It can be understood that the outlet end of each arc-shaped channel 210 can also be arranged on the side wall of the through hole 110, and the inlet end of each arc-shaped channel 210 is arranged on the second end.

[0085] And because the suture needle 500 entering the next arc channel 210 from the previous arc channel 210 can correspond to one of the stitches completed during manual suturing, then when the suture needle 500 passes through each arc channel 210 respectively, it can correspond to multiple stitches completed during manual suturing. Therefore, when the suture needle 500 extends from the last arc channel 210, that is, the end position of the spiral needle feed track 200, the suture thread can be dragged so that the suture thread passes through the track traveled by the suture needle 500, and the suture needle 500 can complete the suturing action at one time without the need to manually insert and pull out one needle at a time, thereby greatly improving the suturing speed and ensuring the suture quality (the distance, uniformity, and suture force of the suture needle 500 can be controlled to be uniform, and the blood vessels can be guaranteed to not bleed).

[0086] Furthermore, the inlet end and the outlet end of each arc channel 210 are not on the same longitudinal section, and the inlet end of each arc channel 210 and the outlet end of another arc channel 210 adjacent to the arc channel 210 are located on the same longitudinal section to form a spiral needle insertion track 200 that spirally moves in the circumferential direction of the first target body 300.

[0087] The suture device base 100 is also provided with an initial needle entry channel 120, which is connected to the starting position of the spiral needle entry track 200, and the starting position of the spiral needle entry track 200 is located in the tangential direction of the first arcuate channel 210, so that the suture needle 500 can enter the arcuate channel 210 along the tangential direction of the arcuate channel 210. In addition, the suture device base 100 is also provided with a needle exit channel 130, which is connected to the terminal position of the spiral needle entry track 200, and the terminal position of the spiral needle entry track 200 is located in the tangential direction of the last arcuate channel 210, so that the suture needle 500 can enter the needle exit channel 130 from the last arcuate channel 210.

[0088] It should be noted that due to Figure 2 This is an axial cross-sectional view, so only two arc-shaped channels 210 are shown. Figure 2 The trajectory of the suture needle 500 is considered to be the initial needle entry channel 120 entering Figure 2 After entering the arc channel 210 on the right side of the middle, the suture needle 500 immediately enters the needle exit channel 130. It should be understood that after entering the arc channel 210, the suture needle 500 is spirally inserted in the axial direction of the first target body 300, so that after a circumferential circle around the first target body 300, a suture needle 500 is formed. Figure 3 Only after following the walking track shown in the figure can the suture thread extend out from the last arc-shaped channel 210 and enter the needle outlet channel 130, thereby being able to pull the suture thread through the same walking track as the suture needle 500, and completing a circle of suture on the circumference of the first target body 300.

[0089] In some embodiments, the stapler base 100 fixes the first target body 300 and the second target body 400 relatively by negative pressure. Specifically, the stapler base 100 is provided with a first negative pressure chamber 140 and a second negative pressure chamber 150. Figure 2 As shown, the first negative pressure chamber 140 is arranged around the circumference of the through hole 110 to fix the first target body 300 in the through hole 110 at a predetermined position on the second target body 400 by negative pressure; the second negative pressure chamber 150 is arranged at the second end of the stapler base 100 to fix one side of the second target body 400 to facilitate suturing. The second negative pressure chamber 150 can extend along the axial direction of the first target body 300 at the second end, that is, it is arranged in the form of a groove body.

[0090] Furthermore, the suture device base 100 is also provided with a first negative pressure tube 180 for connecting to the first negative pressure chamber 140 and a second negative pressure tube 190 for connecting to the second negative pressure chamber 150. The first negative pressure tube 180 and the second negative pressure tube 190 are respectively connected to a vacuum source to respectively provide vacuum to the first negative pressure chamber 140 and the second negative pressure chamber 150. Adsorption by negative pressure can ensure that the docking position of the first target body 300 and the second target body 400 is stable to ensure the suturing effect.

[0091] like Figure 2 As shown, the stapler base 100 is also provided with a ball joint 160 for rotationally connecting with the handle of the stapler, so that the angle can be adjusted to facilitate observation and operation of the surgical process.

[0092] The stapler base 100 is a split structure. Specifically, the stapler base 100 includes a first base and a second base, and the first base and the second base are connected into a whole through a locking device 170. The locking device 170 can be, for example, a locking mechanism such as a lock, a buckle, a hinge, etc., which will not be repeated here.

[0093] By setting the stapler base 100 as a split structure, when one end (such as Figure 2 After the suturing of the lower end of the first target body 300 and the second target body 400 is completed, the suturing device base 100 can be easily disassembled to facilitate the separation of the first target body 300 and the second target body 400. Then, the suturing device base 100 is assembled at another target position of the second target body 400, and the above suturing process is continued to complete the suturing of the other end of the first target body 300 and the second target body 400, thereby both ends of the first target body 300 can be sutured on the second target body 400.

[0094] In addition, the stapler base 100 may be a square or rectangular structure, which is not limited in the present invention.

[0095] Therefore, the suturing device of the present invention has an ingeniously designed spiral needle insertion track 200, so that the suturing needle 500 can be pulled to complete the suturing operation after it travels along the spiral needle insertion track 200 for one circle. The needle insertion operation is simple and easy, and can greatly shorten the suturing time, ensure the suturing effect and reduce bleeding.

[0096] like Figure 4 As shown, the needle insertion controller 600 of the present invention will be described in detail below.

[0097] The needle controller 600 is used to push the suture needle 500 and the suture thread to the suture base (not shown) of the suture device, and adjust the connection angle with the suture base to facilitate observation and operation during surgery. Specifically, the needle controller 600 is rotatably connected to the suture base 100, and a needle channel 631 is provided in the needle controller 600, and the needle channel 631 is connected to the spiral needle track 200. The needle controller 600 can automatically or semi-automatically push the suture needle 500 to the suture base 100 through the needle channel 631, and the suture needle 500 drives the suture thread into the spiral needle track 200 to complete the suturing operation.

[0098] The needle insertion controller 600 includes a spool 610, a rotating arm 620, a needle inserter housing 630, and a needle insertion drive unit 640. The spool 610 is wound with a suture needle 500 and a suture thread; the rotating arm 620 is rotatably connected to the suture device base; the lower end of the needle inserter housing 630 is rotatably connected to the rotating arm 620, and the upper end is connected to the spool 610; the needle insertion channel 631 is respectively arranged in the rotating arm 620 and the needle inserter housing 630; the needle insertion drive unit 640 is connected to the needle inserter housing 630, and when the suture needle 500 moves in the needle insertion channel 631 and passes over the needle insertion drive unit 640, the needle insertion drive unit 640 drives the suture needle 500 to continue to move forward.

[0099] The needle insertion drive unit 640 includes a needle insertion twist wheel 641, a needle insertion passive wheel 642 and a passive wheel compression spring 643. At least a part of the needle insertion twist wheel 641 is arranged on the outside of the needle insertion device housing 630, so as to facilitate manual operation of the needle insertion twist wheel 641. The needle insertion passive wheel 642 is arranged in the needle insertion device housing 630, and the axes of the needle insertion twist wheel 641 and the needle insertion passive wheel 642 are parallel to each other and are respectively arranged on both sides of the needle insertion channel. One end of the passive wheel compression spring 643 is connected to the inner wall of the needle insertion device housing 630, and the other end is connected to the needle insertion passive wheel 642. When the passive wheel compression spring 643 is in an extended state, the passive wheel compression spring 643 is pressed against the needle insertion twist wheel 641. When the suture needle 500 enters between the needle insertion twist wheel 641 and the needle insertion passive wheel 642, the passive wheel compression spring 643 is compressed, so that the needle insertion passive wheel 642 remains in contact with the suture needle 500.

[0100] When inserting the needle, the operator can manually extend the suture needle 500 on the spool 610 into the needle insertion channel 631. It can be understood that the spool 610 can also be driven by a motor to rotate, so as to automatically send the needle into the needle insertion channel 631. When the suture needle 500 passes over the needle insertion twist wheel 641, the operator manually rotates or the motor drives the needle insertion twist wheel 641 to rotate. Since the needle insertion twist wheel 641 contacts the suture needle 500 in the needle insertion channel 631, and the needle insertion passive wheel 642 also contacts the suture needle 500 due to the push of the passive wheel compression spring 643, when the needle insertion twist wheel 641 rotates, the suture needle 500 is continuously advanced through the static friction between it and the suture needle 500, and the static friction between the suture needle 500 and the needle insertion passive wheel 642. The rotation direction of the needle insertion twist wheel 641 is opposite to the rotation direction of the needle insertion passive wheel 642. For example, the needle insertion twist wheel 641 rotates clockwise and the needle insertion passive wheel 642 rotates counterclockwise, thereby driving the suture needle 500 forward.

[0101] A needle insertion damping end cap 611 is disposed at the upper end of the needle inserter housing 630, and the bobbin 610 is connected to the needle insertion damping end cap 611, thereby providing a damping force when the needle is inserted.

[0102] In some embodiments, the rotating arm 620 includes a first rotating arm 621 and a second rotating arm 622. A spherical groove 621a is provided at the lower end of the first rotating arm 621, and a spherical joint 160 is further provided on the upper side of the stapler base 100. The spherical joint 160 is arranged in the spherical groove 621a, so that the rotating arm 620 (first rotating arm 621) and the stapler base 100 form a spherical hinge, so that the first rotating arm 621 and the stapler base 100 can achieve universal rotation adjustment.

[0103] The lower portion of the second rotating arm 622 is rotatably connected to the upper portion of the first rotating arm 621, and the upper portion of the second rotating arm 622 is rotatably connected to the needle inserter housing 630. Specifically, at least a portion of the lower portion of the second rotating arm 622 overlaps at least a portion of the upper portion of the first rotating arm 621, the upper portion of the first rotating arm 621 is provided with a first adjustment slot 621b, the lower portion of the second rotating arm 622 is provided with a second adjustment slot 622a corresponding to the first adjustment slot 621b, and the first adjustment slot 621b and the second adjustment slot 622a are connected by a fastener 623.

[0104] Since both ends of the first rotating arm 621 and both ends of the second rotating arm 622 are circular, the first adjusting groove 621b and the second adjusting groove 622a can be configured as arc grooves 623 symmetrically arranged about the needle insertion channel 631. It can be understood that the first adjusting groove 621b and the second adjusting groove 622a can also be configured as other structural forms.

[0105] In an initial state, the first adjustment groove 621 b and the second adjustment groove 622 a completely overlap.

[0106] By loosening the fastener 623 and rotating the second rotating arm 622 to adjust the overlapped portion between the second rotating arm 622 and the first rotating arm 621, the first adjusting groove 621b and the second adjusting groove 622a are adjusted from the initial fully overlapping state to partially overlapping, thereby adjusting the angle between the second rotating arm 622 and the first rotating arm 621. After adjusting to the required angle, tighten the fastener 623 to fix the second rotating arm 622 and the first rotating arm 621 at the required position.

[0107] Similarly, at least a portion of the upper portion of the second rotating arm 622 overlaps with at least a portion of the lower portion of the needle inserter housing 630, a third adjusting slot 622b is provided at the upper portion of the second rotating arm 622, a fourth adjusting slot 632 is provided at the lower portion of the needle inserter housing 630, and the third adjusting slot 622b and the fourth adjusting slot 632 are connected via a fastener 623. The third adjusting slot 622b and the fourth adjusting slot 632 are both constructed as arc grooves 623 symmetrically arranged about the needle insertion channel 631.

[0108] In the initial state, the third adjustment groove 622b and the fourth adjustment groove 632 completely overlap.

[0109] By loosening the fastener 623 and rotating the needle inserter housing 630 to adjust the overlapped portion between it and the second rotating arm 622, the third adjustment slot 622b and the fourth adjustment slot 632 are adjusted from the initial fully overlapping state to partially overlapping, thereby adjusting the angle between the needle inserter housing 630 and the second rotating arm 622. After adjusting to the required angle, tighten the fastener 623 to fix the needle inserter housing 630 and the second rotating arm 622 at the desired position.

[0110] The fastener 623 may be a rivet, a screw, or the like.

[0111] In addition, a negative pressure channel 650 is also provided in the needle insertion controller 600 , and the negative pressure channel 650 is used to supply vacuum to the stapler base. The negative pressure channel 650 can be provided in parallel with the needle insertion channel 631 .

[0112] The needle insertion controller 600 is also provided with a conversion valve 660, which is connected to the negative pressure channel 650. The conversion valve 660 can be provided on one side of the needle insertion device housing 630, and can be constructed as a three-way valve to be respectively connected to the two negative pressure channels 650 and the negative pressure main pipeline 651, and the negative pressure main pipeline 651 is connected to the negative pressure source.

[0113] According to a second aspect of the present invention, the present invention provides a method for using a suturing device, and the specific operations are as follows.

[0114] In the first step, the first target body 300 is positioned at a predetermined position on the second target body 400 by the negative pressure adsorption effect of the stapler base 100. Specifically, for the first target body 300, its entire circumference needs to be positioned; for the second target body 400, only one side needs to be positioned. Therefore, the first target body 300 can be positioned by the first negative pressure chamber 140 described above, and the second target body can be positioned by the second negative pressure chamber 150.

[0115] The second step is to adjust the relative position between the stapler base 100 and the needle insertion controller 600 for easy observation and operation. For example, the first rotating arm 621 can be rotated to adjust the angle between it and the stapler base 100. The angle between the second rotating arm 622 and the first rotating arm 621 and the second rotating arm 622 and the needle insertion housing 630 can also be adjusted to adjust the needle insertion controller 600 to a suitable position that does not interfere with the field of view and operation of the surgical operation.

[0116] In the third step, the suture needle 500 is pushed into the initial needle insertion channel 120 through the needle insertion controller 600 .

[0117] Specifically, first, the suture needle 500 on the spool 610 is inserted into the needle channel 631. As described above, the suture needle 500 on the spool 610 can be manually inserted into the needle channel 631 by the operator. It can be understood that the spool 610 can also be driven by a motor to rotate, thereby automatically feeding the needle into the needle channel 631.

[0118] Secondly, when the suture needle 500 passes over the needle insertion twist wheel 641, the needle insertion twist wheel 641 is rotated to drive the needle insertion passive wheel 642 to rotate in the direction opposite to its rotation direction, thereby causing the suture needle 500 to enter the initial needle insertion channel 120. As described above, when the suture needle 500 passes over the needle insertion twist wheel 641, the needle insertion twist wheel 641 is rotated manually by the operator or driven by a motor. Since the needle insertion twist wheel 641 contacts the suture needle 500 in the needle insertion channel 631, and the needle insertion passive wheel 642 also contacts the suture needle 500 due to the push of the passive wheel compression spring 643, when the needle insertion twist wheel 641 rotates, the suture needle 500 is continuously advanced through the static friction between the needle insertion twist wheel 641 and the suture needle 500, and the static friction between the suture needle 500 and the needle insertion passive wheel 642. The rotation direction of the needle insertion twist wheel 641 is opposite to the rotation direction of the needle insertion passive wheel 642. For example, the needle insertion twist wheel 641 rotates clockwise and the needle insertion passive wheel 642 rotates counterclockwise, thereby driving the suture needle 500 forward.

[0119] In the fourth step, the suture needle 500 extends from the initial needle entry channel 120 and enters the spiral needle entry track 210 from the starting position of the spiral needle entry track. The starting position of the spiral needle entry track can be located in the tangential direction of one of the arc-shaped channels 210, so that the suture needle 500 can enter the spiral needle entry track 200 from the needle entry channel 120 along the tangential direction of the arc-shaped channel 210.

[0120] The fifth step is to make the suture needle 500 pass through each arc channel 210 of the spiral needle track 200 in sequence. As described above, after the suture needle 500 extends from one of the arc channels 210, it passes through the first target body 300 and the second target body 400 in sequence and enters the next arc channel 210. The above process is repeated to make the suture needle 500 pass through each arc channel 210 of the spiral needle track 200 in sequence.

[0121] The sixth step is to make the suture needle 500 enter the needle exit channel 130 from the terminal position of the spiral needle entry track. The terminal position of the spiral needle entry track can be located in the tangent direction of the last arc channel 210.

[0122] Step 7: After a portion of the suture needle 500 extends out of the needle channel 130, the suture needle 500 is pulled so that the suture thread is pulled along the path (such as the path) that the suture needle 500 has walked. Figure 2 As shown) the suturing of the first target body and the second target body is completed at one time.

[0123] In the eighth step, the suture thread is knotted and the excess suture thread is cut off to complete the suture operation.

[0124] It should be noted that the “upper”, “lower”, “top” and “bottom” mentioned in the present invention are relative to the position of the stapler control handle when it is working, which is only for the convenience of description and should not limit the present invention.

[0125] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A suturing device, characterized in that: It includes a suture device base and a needle insertion controller provided with a suture needle and a suture thread; The suture device base positions the first target body to a predetermined position on the second target body, and the suture device base is provided with a spiral needle track for limiting the travel track of the suture needle; The needle insertion controller is rotatably connected to the stapler base, and a needle insertion channel is provided in the needle insertion controller, and the needle insertion channel is connected to the spiral needle insertion track; The needle insertion controller drives the suturing needle to move toward the spiral needle insertion track in the needle insertion channel, so that the suturing needle is pushed from the starting position of the spiral needle insertion track to the ending position of the spiral needle insertion track and then pulls the suture thread to complete the suturing of the first target body and the second target body at one time; The needle insertion controller comprises: a spool on which a suture needle and suture thread are wound; a rotating arm, which is rotatably connected to the stapler base; and A needle inserter housing, the lower end of which is rotatably connected to the rotating arm, the upper end of which is connected to the thread shaft, and the needle insertion channel is respectively arranged in the rotating arm and the needle inserter housing; The needle insertion drive unit is connected to the needle insertion device housing. When the suture needle moves in the needle insertion channel and passes over the needle insertion drive unit, the needle insertion drive unit drives the suture needle to enter the spiral needle insertion track, and the suture needle drives the suture thread to enter the spiral needle insertion track to complete the suturing operation.

2. The suturing device according to claim 1, characterized in that: The spiral needle insertion track includes at least three arc-shaped channels, and the at least three arc-shaped channels are distributed in a spiral manner along the circumference of the first target body.

3. The suturing device according to claim 2, characterized in that: The adjacent arc-shaped channels correspond to the first target body and the second target body respectively, and the arc-shaped channels match the initial shape of the suture needle so that after the suture needle extends out from any arc-shaped channel, it can pass through the first target body and the second target body in sequence and enter another arc-shaped channel adjacent to the arc-shaped channel.

4. The suturing device according to claim 2 or 3, characterized in that: The first end of the stapler base is used to contact the second target body. The stapler base is provided with a through hole extending from the first end to the second end, and the first end is opposite to the second end; the first target body passes through the through hole and contacts the second target body at the first end.

5. The suturing device according to claim 4, characterized in that: The inlet end of each of the arc-shaped channels is arranged on the side wall of the through hole, and the outlet end of each of the arc-shaped channels is arranged on the second end; or The outlet end of each arc-shaped channel is arranged on the side wall of the through hole, and the inlet end of each arc-shaped channel is arranged on the second end.

6. The suturing device according to claim 5, characterized in that: The inlet end and the outlet end of each arc-shaped channel are not on the same longitudinal section, and the inlet end of each arc-shaped channel and the outlet end of another arc-shaped channel adjacent to the arc-shaped channel are located on the same longitudinal section.

7. The suturing device according to claim 2 or 3, characterized in that: The suture device base is also provided with an initial needle insertion channel, which is connected to the starting position of the spiral needle insertion track, and the suture needle enters the starting position of the spiral needle insertion track through the initial needle insertion channel; The starting position of the spiral needle-entry track is located in the tangential direction of the first arc-shaped channel, so that the suture needle enters the arc-shaped channel along the tangential direction of the arc-shaped channel.

8. The suturing device according to claim 2 or 3, characterized in that: A needle exit channel is also provided on the suturing device base, and the needle exit channel is connected to the terminal position of the spiral needle entry track. The terminal position of the spiral needle entry track is located in the tangent direction of the last arcuate channel, so that the suturing needle enters the needle exit channel from the last arcuate channel.

9. The suturing device according to claim 4, characterized in that: The stapler base is also provided with a first negative pressure chamber and a second negative pressure chamber, wherein the first negative pressure chamber is arranged around the circumference of the through hole to fix the first target body in the through hole at a predetermined position on the second target body by negative pressure; the second negative pressure chamber is arranged at the second end of the stapler base to fix one side of the second target body to facilitate suturing; The stapler base is also provided with a first negative pressure tube connected to the first negative pressure chamber and a second negative pressure tube connected to the second negative pressure chamber. Both the first negative pressure tube and the second negative pressure tube are connected to a vacuum source outside the stapler base.

10. The suturing device according to any one of claims 1 to 3, characterized in that: The stapler base is a split structure; the stapler base comprises a first base and a second base, and the first base and the second base are connected into a whole through a locking device.

11. The suturing device according to claim 1, characterized in that: The needle driving unit comprises: A needle-feeding twisting wheel, at least a portion of which is arranged on the outside of the needle-feeding device housing to facilitate the operation of the needle-feeding twisting wheel; A needle insertion driven wheel, which is arranged in the needle insertion device housing, wherein the axes of the needle insertion twisting wheel and the needle insertion driven wheel are parallel to each other and are respectively arranged on both sides of the needle insertion channel; and A passive wheel compression spring, one end of which is connected to the inner wall of the needle inserter housing, and the other end of which is connected to the needle insertion passive wheel. When the passive wheel compression spring is in an extended state, the passive wheel compression spring is pressed toward the needle insertion twist wheel. When the suture needle enters between the needle insertion twist wheel and the needle insertion passive wheel, the passive wheel compression spring is compressed, thereby keeping the needle insertion passive wheel in contact with the suture needle.

12. The suturing device according to claim 11, characterized in that: The upper end of the needle inserter housing is provided with a needle insertion damping end cover, and the bobbin is connected to the needle insertion damping end cover, thereby providing a damping force when the needle is inserted.

13. The suturing device according to claim 11, characterized in that: The rotating arm comprises: A first rotating arm, a spherical groove is provided at a lower end thereof, and the spherical groove forms a spherical hinge with the stapler base; and The lower part of the second rotating arm is rotatably connected to the upper part of the first rotating arm, and the upper part of the second rotating arm is rotatably connected to the needle inserter housing.

14. The suturing device according to claim 13, characterized in that: A spherical joint is also provided on the upper side of the stapler base, and the spherical joint is arranged in the spherical groove.

15. The suturing device according to claim 13, characterized in that: At least a portion of the lower portion of the second rotating arm overlaps with at least a portion of the upper portion of the first rotating arm, the upper portion of the first rotating arm is provided with a first adjustment groove, and the lower portion of the second rotating arm is provided with a second adjustment groove corresponding to the first adjustment groove, and the first adjustment groove and the second adjustment groove are connected by fasteners.

16. The suturing device according to claim 15, characterized in that: At least a portion of the upper portion of the second rotating arm overlaps with at least a portion of the lower portion of the needle inserter housing, a third adjustment slot is provided at the upper portion of the second rotating arm, a fourth adjustment slot is provided at the lower portion of the needle inserter housing, and the third adjustment slot and the fourth adjustment slot are connected by fasteners.

17. The suturing device according to claim 16, characterized in that: The first adjustment groove and the second adjustment groove are both configured as arc-shaped grooves symmetrically arranged with respect to the needle insertion channel; The third adjustment groove and the fourth adjustment groove are both constructed as arc-shaped grooves symmetrically arranged with respect to the needle insertion channel.

18. The suturing device according to claim 1, characterized in that: The needle insertion controller is also provided with a negative pressure channel, and the negative pressure channel is used to supply vacuum to the stapler base.

19. The suturing device according to claim 18, characterized in that The needle insertion controller is also provided with a conversion valve, and the conversion valve is connected to the negative pressure channel.

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