A suture device

Abstract

This invention discloses a suture device, comprising a main shaft and several suture components. Each suture component includes a suture thread with suture needles at both ends. The main shaft has suture limiting members connected to both ends, each capable of sliding along the main shaft. The ends of two suture limiting members that are far apart from each other extend beyond the main shaft. Several guide channels for accommodating suture needles are arranged around the outer periphery of each suture limiting member. When the tip of the suture needle is engaged with a suture limiting member below a guide channel, the suture limiting member is restricted from moving. When the suture needle is pulled away from the outer end of the corresponding suture limiting member, the needle tip slides out of the suture limiting member. When the suture needle is pushed towards the outer end of the corresponding suture limiting member, the needle tip is pushed to the outlet of the guide channel. This invention has a simple structure and is more convenient for suturing tubular tissues.

Description

Technical Field

[0001] This invention relates to the field of tubular tissue suturing technology, and in particular to a suturing device for suturing tubular tissue. Background Technology

[0002] Suturing wounds with needles and sutures is a well-known medical technique. Medical-grade needles and sutures are well-suited for closing wounds or fixing adjacent tissues together. The suturing process requires multiple sutures between the opposing stumps. In cases involving small blood vessels, this can be a complex and time-consuming procedure. Moreover, when suturing severed small-diameter blood vessels using conventional methods, not only are there difficulties in securing the suture and the suturing itself becomes extremely challenging, but it can also further increase the risk of thrombosis and vascular blockage.

[0003] To address the difficulties in suturing using traditional techniques, instruments for suturing two tubular tissues or other organs are now frequently used. For example, the invention patent entitled "Device for Communicatively Coupled First and Second Organ Bodies," published under CN 107683115 A, describes an instrument for suturing two tubular organs. This instrument utilizes multiple sutures, each with needles at both ends, allowing multiple sutures to be quickly applied to very small tubular tissues, such as small-diameter blood vessels, to connect the pieces. However, its structure is complex and cumbersome, making it inconvenient to operate. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems of tubular tissue suturing mentioned above and / or in the prior art, the present invention is proposed.

[0006] The technical problem solved by this invention is that the structure is complex and cumbersome, making it inconvenient to operate.

[0007] Therefore, the purpose of this invention is to provide a suture device that is simple in structure and easy to operate.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a suture device, comprising a main shaft and a plurality of suture components, each suture component comprising a suture thread, with suture needles at both ends of the suture thread; suture limiting members that can slide along the main shaft are respectively connected to both ends of the main shaft; one end of each of the two suture limiting members extends out of the main shaft; a plurality of guide channels for accommodating suture needles are arranged around the outer periphery of the suture limiting members; when the tip of the suture needle is caught on the suture limiting member below the guide channel, the suture limiting member is restricted from moving; when the suture needle is pulled to move away from the outer end of the corresponding suture limiting member, the tip slides out of the suture limiting member; when the suture needle is pushed to move towards the outer end of the corresponding suture limiting member, the tip is pushed to the outlet of the guide channel.

[0009] In a preferred embodiment of the suture device of the present invention, the main shafts of the two suture limiting members are connected to sliding components that can slide along the axial direction of the main shafts. The sliding components can also rotate along the outer periphery of the suture limiting members. The outward-facing ends of the two sliding components are provided with a plurality of insertion interfaces corresponding one-to-one with the suture needles. The sliding components inside the insertion interfaces have push-pull rotation grooves. When the tip of the suture needle is caught on the suture limiting member below the guide channel, the end of the suture needle away from the tip is attached to the sliding component through the insertion interface. When the sliding component rotates along the outer periphery of the suture limiting member, the end of the suture needle away from the tip enters the push-pull rotation groove.

[0010] In a preferred embodiment of the suture device of the present invention, at least one connecting pin is inserted into the sliding assembly, and a first movable groove corresponding to the connecting pin is provided on the outer periphery of the suture limiting member connected to the main shaft. A rotating snap-fit ​​groove is opened on the suture limiting member at the end of the first movable groove away from the guide channel. The axial direction of the first movable groove is parallel to the axial direction of the suture limiting member. When the tip of the suture needle is stuck on the suture limiting member on the lower side of the guide channel, the inner end of the connecting pin is inserted into the end of the rotating snap-fit ​​groove away from the first movable groove.

[0011] In a preferred embodiment of the suture device of the present invention, a fixed component is connected to the main shaft between the two sliding components. At least one limiting rod is fixed to one end of the sliding component relative to the fixed component. The fixed component has sliding grooves that correspond one-to-one with the limiting rods. When the tip of the suture needle is stuck on the suture limiting member on the lower side of the guide channel, the limiting rod and the sliding groove are staggered. When the sliding component is rotated to make the connecting pin rotate along the rotating locking groove into the second moving groove, the circumferential area of ​​the sliding groove covers the corresponding limiting rod.

[0012] In a preferred embodiment of the suture device of the present invention, the sliding component is detachably connected to the main shaft.

[0013] In a preferred embodiment of the suture device of the present invention, the sliding assembly includes a first sliding member and a second sliding member, the inner sides of the first sliding member and the second sliding member can be fitted onto the outer sides of the main shaft and the suture limiting member, and the first sliding member is inserted into the second sliding member.

[0014] As a preferred embodiment of the suture device in this invention, at least one sliding keyway is provided on the outer periphery of each end of the main shaft in the axial direction, and a movable key corresponding to the sliding keyway is connected to the suture limiting member, and the movable key can slide along the axial direction of the sliding keyway; when the connecting pin is in the rotating locking groove, the side of the limiting rod away from the corresponding sliding component is attached to the fixed component.

[0015] In a preferred embodiment of the suture device of the present invention, a handle for easy operation is also connected to the outer side of the sliding component.

[0016] As a preferred embodiment of the suture device in this invention, the fixing member is connected to a clamp for easy operation.

[0017] Compared with the prior art, the present invention offers the following advantages: In the initial state, the needle tip of the suture needle is inside the suture limiting member on the inside of the guide channel. During suturing, the two tubular tissues are first fitted onto the outer ends of the two suture limiting members (at least covering the exit of the guide channel). Simply rotate the sliding component to allow the end of the suture needle away from the needle tip to enter the push-pull rotating groove. After the sliding groove covers the limiting rod, pull the sliding component to make it slide in the direction of the fixed component, driving the suture needle to move. The needle tip slides out of the suture limiting member, and the suture needle is completely in the guide channel. Then, move the sliding component in the opposite direction to move it in the direction of the tubular tissue. The needle tip is pushed to the exit of the guide channel, just piercing the tubular tissue. At this point, simply use other tools to grasp the needle tip, pull the needle through the tube wall, and pull the suture between the paired suture needles. Then remove the suture device. Finally, suture the two ends of the severed blood vessel accordingly. Using the present invention, suturing tubular tissues is convenient and quick, especially suitable for the rapid suturing of small-diameter blood vessels. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 The three-dimensional structure of the present invention Figure 1 .

[0020] Figure 2 for Figure 1A magnified view of a portion of point A in the middle.

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention after a second sliding rod has been hidden.

[0022] Figure 4 for Figure 3 A magnified view of a section at point B.

[0023] Figure 5 The three-dimensional structure of the present invention Figure 2 .

[0024] Figure 6 for Figure 5 A magnified view of a section at point C.

[0025] Figure 7 This is a partial structural diagram of the suture needle tip inside the suture stopper in the initial state.

[0026] Figure 8 The three-dimensional structure of the present invention Figure 3 .

[0027] In the diagram, 100 is the sliding component, 101 is the second sliding member, 102 is the first sliding member, 102a is the first connecting countersunk hole, 102b is the first insertion rod, 102c is the limiting rod, 200 is the suture needle, 300 is the suture limiting member, 301 is the guide channel, 302 is the second moving countersunk groove, 303 is the intermediate transition countersunk groove, 304 is the rotating snap-fit ​​countersunk groove, 305 is the first moving countersunk groove, 400 is the connecting pin, 500 is the handle, 600 is the spindle, 601 is the sliding keyway, 700 is the fixing component, 701 is the first fixing member, 702 is the second fixing member, 800 is the clamp, 900 is the moving key, X is the insertion interface, S is the push-pull rotating countersunk groove, J is the through opening, P is the sliding groove, and K is the guide countersunk groove. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2 This embodiment provides a suture device with a simple structure. When suturing two tubular tissues using this invention, the operation is simple and quick.

[0033] A suture device includes a main shaft 600 and a plurality of suture components. Each suture component includes a suture thread with suture needles 200 at both ends. The main shaft 600 has suture limiting members 300 connected to both ends, which can slide along the main shaft 600. The ends of the two suture limiting members 300 that are far apart from each other extend out of the main shaft 600. The outer periphery of the suture limiting members 300 has a plurality of guide channels 301 for accommodating the suture needles 200. When the tip of the suture needle 200 is caught on the suture limiting member 300 on the lower side of the guide channel 301, the suture limiting member 300 is restricted from moving. When the suture needle 200 is pulled to move away from the outer end of the corresponding suture limiting member 300, the tip slides out of the suture limiting member 300. When the suture needle 200 is pushed to move towards the outer end of the corresponding suture limiting member 300, the tip is pushed to the outlet of the guide channel 301.

[0034] Specifically, the two suture limiting members 300 are connected to the main shaft 600, and the sliding components 100 can slide along the axial direction of the main shaft 600. The sliding components 100 can also rotate along the outer periphery of the suture limiting members 300. The two sliding components 100 have several insertion interfaces X corresponding to the suture needles 200 on their outward-facing ends. The sliding components 100 inside the insertion interfaces X have push-pull rotation grooves S. When the needle tip of the suture needle 200 is stuck on the suture limiting member 300 on the lower side of the guide channel 301, the end of the suture needle 200 away from the needle tip is attached to the sliding component 100 through the insertion interface X. When the sliding component 100 rotates along the outer periphery of the suture limiting member 300, the end of the suture needle 200 away from the needle tip enters the push-pull rotation groove S.

[0035] In the initial state, the tip of the suture needle 200 is inside the suture limiting member 300 on the inside of the guide channel 301. During suturing, first, the two tubular tissues are respectively fitted onto the outer ends of the two suture limiting members 300 (at least covering the exit of the guide channel 301). Simply rotate the sliding component 100 to make the end of the suture needle 200 away from the needle tip enter the push-pull rotating groove S. Pull the sliding component 100 to make it slide in the direction of the fixed component 700, which will drive the suture needle 200 to move. The needle tip slides out of the suture limiting member 300 and the suture needle 200 is completely in the guide channel 301. Then, move the sliding component 100 in the opposite direction to make it move in the direction of the tubular tissue. The needle tip is pushed to the exit of the guide channel 301 and just pierces the tubular tissue. At this time, simply use other tools to grab the needle tip and pull the needle through the tube wall to pull the suture between the pair of suture needles 200.

[0036] Specifically, the sliding assembly 100 is detachably connected to the spindle 600. The sliding assembly 100 includes a first sliding member 102 and a second sliding member 101. A connecting pin 400 is inserted into the first sliding member 102 and the second sliding member 101 respectively. The inner sides of the first sliding member 102 and the second sliding member 101 can fit perfectly on the outside of the spindle 600 and the sewing limit member 300. The first sliding member 102 is inserted into the second sliding member 101. The first sliding member 102 has a first connecting countersunk hole 102a and a first insertion rod 102b connected to it on both sides of one end opposite to the second sliding member 101. The second sliding member 101 has a second insertion rod that can be inserted into the first connecting countersunk hole 102a and a second connecting countersunk hole that allows the first insertion rod 102b to be inserted on both sides of one end opposite to the first sliding member 102.

[0037] First, remove the first sliding member 102 and the second sliding member 101, then push the suture limiting member 300 so that the two suture limiting members 300 move towards each other and away from the tubular tissue. Remove the main shaft 600 to remove the suture device. Finally, suture the two ends of the broken blood vessel accordingly.

[0038] Example 2

[0039] Reference Figure 3 , Figure 4 and Figure 7 This embodiment provides a suture device, which is based on the previous embodiment and can further realize the puncture action of the suture needle 200.

[0040] Specifically, the first sliding member 102 and the second sliding member 101 are each connected to a connecting pin 400. The sewing limiting member 300 connected to the main shaft 600 has a first movable groove 305 on its outer periphery that corresponds one-to-one with the connecting pin 400. An intermediate transition groove 303 is formed on the sewing limiting member 300 at the end of the first movable groove 305 away from the guide channel 301. A second movable groove 302 is formed on the sewing limiting member 300 at the end of the intermediate transition groove 303 away from the first movable groove 305. The second movable sinker 302 has a bent rotating snap sinker 304 on the suture limiting member 300 at the end away from the intermediate transition sinker 303. The axial directions of the second movable sinker 302 and the first movable sinker 305 are parallel to the axial direction of the suture limiting member 300. When the tip of the suture needle 200 is stuck on the suture limiting member 300 on the lower side of the guide channel 301, the inner end of the connecting pin 400 is inserted into the end of the rotating snap sinker 304 away from the first movable sinker 305, and cannot move axially.

[0041] Specifically, a fixed component 700 is connected to the main shaft 600 between the two sliding components 100. A limiting rod 102c is fixed to one end of the first sliding member 102 and the second sliding member 101 relative to the fixed component 700. The fixed component 700 has sliding grooves P that correspond one-to-one with the limiting rods 102c. When the tip of the suture needle 200 is engaged with the suture limiting member 300 on the lower side of the guide channel 301, the limiting rod 102c and the sliding groove P are offset, and the side of the limiting rod 102c away from the corresponding sliding component 100 is attached to the fixed component 700. When an external force is applied to rotate the sliding component 100 along the outer circumference of the suture limiting member 300, the connecting pin 400 disengages from the rotating engagement groove. When the axial position of 304 is fixed, the connecting pin 400 rotates to align with the position of the second movable groove 302, and the sliding groove P covers the corresponding limiting rod 102c; the outer periphery of both ends of the main shaft 600 in the axial direction has a sliding keyway 601, and the sewing limiting member 300 is connected to a movable key 900 that can slide along the sliding keyway 601. When the needle tip is inside the sewing limiting member 300, the movable key 900 abuts against the main shaft 600 at the end of the sliding keyway 601 away from the fixed component 700, and the movable key 900 can just slide along the axial direction of the sliding keyway 601; when the connecting pin 400 is in the rotating locking groove 304, the side of the limiting rod 102c away from the corresponding sliding component 100 is attached to the fixed component 700.

[0042] In the initial state, the connecting pin 400 is at the end of the rotating locking groove 304 away from the second moving groove 302, and the limiting rod 102c abuts against the fixed component 700. The sliding component 100 cannot move axially under the combined action of the connecting pin 400, the fixed component 700, and the moving key 900. When the sliding component 100 is rotated, the connecting pin 400 rotates a small section along the rotating locking groove 304 and moves into the second moving groove 302. At this time, the end of the suture needle 200 away from the needle tip enters the push-pull rotating groove S. Under the action of external force, the sliding component 100 moves in the direction of the fixed component 700. The sliding component 100 pulls the suture needle 200 to move, and the needle tip slides out of the suture limiting member 300 and slides into the guide channel 301. Then the sliding component 100 is rotated again. The moving component 100 and the connecting pin 400 rotate a short distance along the intermediate transition groove 303. The suture needle 200 further enters the push-pull rotation groove S. When the connecting pin 400 enters the first moving groove 305, the sliding component 100 moves towards the tubular tissue under the action of external force. The needle tip is pushed to the outlet of the guide channel 301 and just pierces the tubular tissue. Remove each connecting pin 400, remove the first sliding member 102 and the second sliding member 101, and push the suture limiting member 300 to move away from the tubular tissue. The moving key 900 slides along the sliding keyway 601. When the suture limiting member 300 leaves the tubular tissue, remove the suture limiting member 300 and the main shaft 600 connected together, thus removing the suture device.

[0043] Example 3

[0044] Reference Figure 5 This embodiment provides a suture device, which is based on the previous two embodiments and can be further simplified in operation.

[0045] Specifically, the outer periphery of the first slider 102 is also connected to a handle 500 for easy operation. The handle 500 can also be connected to the second slider 101. It can be set as needed and is not limited to a fixed method.

[0046] There are several ways to implement this. For example, an operating hole can be made on the first sliding member 102, and the handle 500 can be inserted into the operating hole. The operating hole can be a threaded hole or a smooth round hole. If the operating hole is a threaded hole, the handle 500 can be threadedly connected to the first sliding member 102 through the operating hole. Alternatively, the handle 500 can be fixed to the first sliding member 102 or the second sliding member 101 at the beginning. It can be an integrated set, or the handle 500 can be welded to the first sliding member 102.

[0047] The sliding component 100 can be rotated or moved axially by pushing or pulling the handle 500, making operation more convenient.

[0048] Example 4

[0049] Reference Figure 5 and Figure 6 This embodiment provides a suture device, which is based on the above three embodiments and can further facilitate the removal of the fixation component 700.

[0050] Specifically, the fixing component 700 includes a first fixing member 701 and a second fixing member 702. The first fixing member 701 and the second fixing member 702 can fit together and be sleeved on the spindle 600. The clamp 800 is used to clamp the first fixing member 701 and the second fixing member 702 to prevent them from moving.

[0051] After the needle tip pierces the tubular tissue, release the clamp 800 and remove the first fixation piece 701 and the second fixation piece 702.

[0052] In this application, the inner sides of the first fixing member 701, the second fixing member 702, the first sliding member 102 and the second sliding member 101 are each provided with a plurality of through openings J corresponding one-to-one with the guide channel 301, through which the suture thread passes.

[0053] Example 5

[0054] Reference Figure 8 This embodiment provides a suture device, based on the four embodiments mentioned above. Specifically, when the fixing component 700 is not a separate unit, it is an integrated unit.

[0055] It is fixedly connected to the main shaft 600. Several guide grooves K are arranged on the outer periphery of the fixed component 700 to guide the suture. After the suture passes through the through-hole J of a sliding component 100, it follows the corresponding guide groove K and then passes through the corresponding through-hole J in the next sliding component 100.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it.

[0057] Limited to the three structural forms given in this application, although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A suture device, characterized in that: The device includes a main shaft (600) and several sutures. Each suture includes a suture thread with suture needles (200) at both ends. The main shaft (600) has suture limiting members (300) connected to both ends, each capable of sliding along the main shaft (600). The ends of two suture limiting members (300) that are far apart from each other extend beyond the main shaft (600). The outer periphery of each suture limiting member (300) has several guide channels (301) for accommodating the suture needles (200). When the tip of the suture needle (200) is caught on a suture limiting member (300) below a guide channel (301), the suture limiting member (300) is restricted from moving. When the suture needle (200) is pulled away from the outer end of the corresponding suture stop (300), the needle tip slides out of the suture stop (300). When the suture needle (200) is pushed away from the outer end of the corresponding suture stop (300), the needle tip is pushed to the exit of the guide channel (301). A sliding assembly (100) that can slide along the axial direction of the main shaft (600) of the two suture stop (300) is connected to the main shaft (600). The sliding assembly (100) can also rotate along the outer periphery of the suture stop (300). Several suture needles (200) are arranged at the outward-facing end of the two sliding assemblies (100). 00) One-to-one corresponding insertion interface (X), the sliding component (100) inside the insertion interface (X) has a push-pull rotation groove (S); when the needle tip of the suture needle (200) is stuck on the suture limiting member (300) under the guide channel (301), the end of the suture needle (200) away from the needle tip is attached to the sliding component (100) through the insertion interface (X); when the sliding component (100) rotates along the outer periphery of the suture limiting member (300), the end of the suture needle (200) away from the needle tip enters the push-pull rotation groove (S); at least one connecting pin (400) is inserted into the sliding component (100) and connected to the main shaft ( The outer periphery of the suture limiting member (300) on the 600) is provided with a first movable groove (305) corresponding to the connecting pin (400). The suture limiting member (300) at the end of the first movable groove (305) away from the guide channel (301) has a rotating snap-fit ​​groove (304). The axial direction of the first movable groove (305) is parallel to the axial direction of the suture limiting member (300). When the needle tip of the suture needle (200) is stuck on the suture limiting member (300) on the lower side of the guide channel (301), the inner end of the connecting pin (400) is inserted into the end of the rotating snap-fit ​​groove (304) away from the first movable groove (305).

2. The suture device as claimed in claim 1, characterized in that: A fixed component (700) is connected to the main shaft (600) between the two sliding components (100). At least one limiting rod (102c) is fixed to one end of the sliding component (100) relative to the fixed component (700). The fixed component (700) has sliding grooves (P) that correspond one-to-one with the limiting rods (102c). When the tip of the suture needle (200) is stuck on the suture limiting member (300) on the lower side of the guide channel (301), the limiting rod (102c) and the sliding groove (P) are staggered. When the sliding component (100) is rotated so that the connecting pin (400) rotates along the rotating locking groove (304) into the second moving groove (302), the circumferential area of ​​the sliding groove (P) covers the corresponding limiting rod (102c).

3. The suture device as described in claim 1 or 2, characterized in that: The sliding assembly (100) is detachably connected to the spindle (600).

4. The suture device as described in claim 3, characterized in that: The sliding assembly (100) includes a first sliding member (102) and a second sliding member (101). The inner sides of the first sliding member (102) and the second sliding member (101) can be fitted onto the outer sides of the main shaft (600) and the sewing limit member (300). The first sliding member (102) is inserted into the second sliding member (101).

5. The suture device as described in claim 1 or 2, characterized in that: At least one sliding keyway (601) is provided on the outer periphery of each end of the main shaft (600) in the axial direction. The sewing limiter (300) is connected to a movable key (900) that corresponds one-to-one with the sliding keyway (601). The movable key (900) can slide along the axial direction of the sliding keyway (601). When the connecting pin (400) is in the rotating snap-fit ​​groove (304), the side of the limit rod (102c) away from the corresponding sliding component (100) is attached to the fixed component (700).

6. The suture device as described in claim 1 or 2, characterized in that: The outer side of the sliding component (100) is also connected to a handle (500) for easy operation.

7. The suture device as claimed in claim 2, characterized in that: The fixing component (700) is connected to a clamp for easy operation.

Images