A handheld trigger anastomosis ring vascular anastomosis device and method

Abstract

The present invention discloses a handheld trigger anastomosis ring blood vessel anastomosis device and method. The handle assembly includes a trigger handle hinged with a fixed handle, and a toggle piece is fixed on the trigger handle; the toggle piece is connected to a movable rod, and the movable rod is connected to two anastomosis-promoting inclined plates, one end of the two anastomosis-promoting inclined plates is close to each other, and the other end is far away, and the movable rod can repeatedly move linearly relative to the fixed rod sleeve; the execution assembly includes anastomosis rings respectively connected to the fixed blocks, and a fixed block and a torsion spring are sleeved on the mounting shaft, and the two ends of the torsion spring are respectively abutted on the fixed block, and the mounting shaft is connected to the fixed rod sleeve. The trigger handle rotates around the fixed handle to drive the toggle piece to move, and the toggle piece drives the movable rod to move linearly, and the movable rod drives the anastomosis-promoting inclined plate to extend forward, and the anastomosis-promoting inclined plate overcomes the elastic force of the torsion spring to make a pair of anastomosis rings fit together. The device can be operated with one hand, is simple and labor-saving, and the anastomosis ring is subjected to a large force to ensure the fit of the anastomosis blood vessels and the blood vessel anastomosis effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and particularly to a handheld trigger anastomosis ring blood vessel anastomosis device and method. Background Art

[0002] Vascular anastomosis technology is a surgical technique for connecting two blood vessels into one. This technology has been widely used in various surgical operations. For example, in surgeries in many fields such as plastic surgery, hepatobiliary surgery, cardiothoracic surgery, urology, and obstetrics and gynecology, vascular anastomosis technology is required. As one of the most important steps in the above surgeries, the success or failure of vascular anastomosis technology directly affects whether the tissues in the surgery can survive after the operation.

[0003] Currently, the vascular anastomoses used clinically include suture anastomosis and mechanical staple ring anastomosis. Among them, vascular suture anastomosis, which uses sutures to butt-join the ends of blood vessels, is the currently recognized standard method for vascular anastomosis and is also the most commonly used vascular anastomosis method in clinical practice. Vascular mechanical staple ring anastomosis is to respectively insert and evert the two ends of the blood vessels and fix them on an independent anastomosis ring, and rely on the tight alignment of the anastomosis ring to achieve the anastomosis of the blood vessel ends. Although the application of vascular mechanical staple ring anastomosis can greatly simplify the surgical operation steps and shorten the surgical operation time, in actual surgery, a clamping member is required to clamp the anastomosis ring for anastomosis. For example, Patent CN202875417U sets an anastomosis device pushing handle, including a cap, a fixing plate, a push rod, a handle body, a guiding head, etc. to clamp and push the anastomosis ring for related operations. Specifically, the cap on the anastomosis device pushing handle is fully rotated clockwise to close the needle ring A and the needle ring B until the front end plate edges of the guiding plate A and the guiding plate B respectively contact the needle ring clamping pliers A and the needle ring clamping pliers B of the needle ring, so that the needle ring clamping pliers A and the needle ring clamping pliers B approach each other, and the needle ring A on the needle ring clamping pliers A and the needle ring B on the needle ring clamping pliers B are connected and fixed together. This method requires two-handed operation, and the circular motion is converted into a linear motion through rotational operation. During the process, it is not only laborious and easy to make the doctor fatigued, but also the force on the anastomosis ring for fitting is small, making it difficult to ensure the fitting degree of the anastomosed blood vessels, thereby affecting the blood vessel anastomosis effect. At the same time, when applying force with both hands, the force is relatively large and easy to shake, greatly reducing the stability during the surgical anastomosis process and easily causing anastomosis failure. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide a handheld trigger anastomosis ring blood vessel anastomosis device and method that can be operated with one hand, is flexible and labor-saving to use, and has stable fitting.

[0005] To achieve the above object, on the one hand, the present invention provides a handheld trigger anastomosis ring blood vessel anastomosis device, including a handle assembly and an execution assembly connected by a connection component.

[0006] The handle assembly includes a trigger handle hinged to a fixed handle, and the trigger handle is connected to a toggling member;

[0007] The connection assembly includes a movable rod that can move linearly back and forth relative to a fixed rod sleeve. The fixed rod sleeve is connected to the fixed handle. One end of the movable rod is connected to the toggling member, and the other end of the movable rod is connected to two anastomosis-promoting inclined plates. One ends of the two anastomosis-promoting inclined plates are close to each other and the other ends are far from each other;

[0008] The execution assembly includes a pair of anastomosis rings respectively connected to a fixed block. The fixed blocks are respectively sleeved on a mounting shaft. A torsion spring is sleeved on the mounting shaft, and two ends of the torsion spring respectively abut against the fixed blocks. The mounting shaft is connected to the fixed rod sleeve.

[0009] With the above technical solution, hold the fixed handle with one hand, press the trigger handle to rotate it around the fixed handle to drive the toggling member to move. The toggling member drives the movable rod to move linearly. The movable rod drives the anastomosis-promoting inclined plates to extend forward. The anastomosis-promoting inclined plates overcome the elastic force of the torsion spring to make a pair of anastomosis rings fit. This setting can be operated with one hand, and by pressing the trigger handle hinged to the fixed handle, the backward movement of the trigger handle is converted into the forward extension of the movable rod and the anastomosis-promoting inclined plates. The operation is simple and labor-saving, and the force on the fitting of the anastomosis rings is large enough to ensure the fitting degree of the anastomosed blood vessels, making it fit precisely and ensuring the blood vessel anastomosis effect.

[0010] Further, the toggling member is a toggle piece. One end of the toggle piece is fixedly connected to the trigger handle, and the other end is fixedly connected to a first concave member. The first concave member is connected to the movable rod.

[0011] Further, the two anastomosis-promoting inclined plates are inserted into the movable rod and are fixed by a first positioning pin after insertion. The distance between the ends of the two anastomosis-promoting inclined plates away from the movable rod is large, and the distance between the ends close to the movable rod is small, so that when the two anastomosis-promoting inclined plates move forward, it is equivalent to the distance being tightened, promoting the anastomosis of the anastomosis rings.

[0012] Further, two movable rods are provided and are respectively inserted into one ends of the two anastomosis-promoting inclined plates to make the anastomosis-promoting inclined plates receive force evenly and stably. The end faces of the insertion ends of the two anastomosis-promoting inclined plates and the corresponding faces are respectively coplanar, ensuring that the two anastomosis-promoting inclined plates contact the fixed block simultaneously and ensuring that the two anastomosis-promoting inclined plates can displace the same amount to apply the same force to fit the anastomosis rings, making the fitting precise and the blood vessel anastomosis accurate.

[0013] Further, the two anastomosis-promoting inclined plates are connected by a connecting plate, and the connecting plate is inserted into the movable rod.

[0014] Further, a limiting groove is provided on the fixed rod sleeve, and the limiting groove is adapted to the movable rod. The limiting groove is used to limit the linear movement of the movable rod.

[0015] Further, second limiting columns are connected to one ends of the movable rods away from the anastomosis promoting inclined plates. The second limiting columns pass through the positioning grooves on the positioning ring and are connected to limiting caps. An anti - detachment ring is sleeved outside the positioning ring. A U - shaped member is provided outside the anti - detachment ring. The anti - detachment ring and the inside of the U - shaped member are in clearance fit. The outside of the U - shaped member is connected to the first concave member. The positioning ring and the positioning groove are used to limit the distance between the two movable rods. The limiting caps and the anti - detachment ring are used to prevent the second limiting columns from disengaging from the positioning grooves.

[0016] Adopting the above - mentioned technical solution, with the clearance fit between the inside of the U - shaped member and the anti - detachment ring, when the fixed rod sleeve rotates, the fixed rod sleeve drives the anastomosis ring and the movable rod to rotate, the movable rod drives the anastomosis promoting inclined plate to rotate, and the movable rod drives the positioning ring and the anti - detachment ring to rotate inside the U - shaped member. Therefore, the relative angle between the execution component and the handle component can be adjusted, so that the handle component and the execution component can both face upwards, with sufficient operating space and clear operating vision.

[0017] Furthermore, a rotating dial is provided outside the fixed rod sleeve. The rotating dial is used to rotate the fixed rod sleeve and the movable rod to adjust the relative angle between the execution component and the handle component.

[0018] Furthermore, the positioning ring is sleeved on the guiding column. One end of the guiding column is limited inside the second concave member, and the second concave member is fixed inside the fixed handle. The other end of the guiding column is fixed on the fixed rod sleeve through a second positioning pin. The guiding column is used to guide the linear movement of the positioning ring.

[0019] Further, a safety device is provided on the handle component to prevent the anastomosis ring from anastomosing caused by accidentally touching the trigger handle.

[0020] Furthermore, the safety device includes a control button, a control spring, a rotating ring, a rotating plate and a hook. The control button extends out of the fixed handle. The bottom of the control button is connected to one end of the control spring, and the other end of the control spring is connected to a reinforcing rib inside the fixed handle. One side of the control button is connected to the rotating ring, the rotating ring is connected to the hook through the rotating plate, and the hook is used to contact the anti - detachment ring to limit the linear movement of the anti - detachment ring and further limit the linear movement of the movable rod.

[0021] Furthermore, a second limiting groove is provided on the outer circumference of the anti-slip ring, and the second limiting groove is adapted to the hook for limiting the contact position between the hook and the anti-slip ring, and the hook is clamped in the second limiting groove for facilitating the inspection of the matching condition.

[0022] Furthermore, the fixed handle is provided with a first limiting column, and the trigger handle is provided with a first limiting groove, and the first limiting groove is matched with the first limiting column to limit the rotation angle of the trigger handle.

[0023] Furthermore, the first limiting column is clamped in the middle of the first limiting groove to facilitate the inspection of the matching condition.

[0024] Furthermore, the installation shaft is inserted into the connecting piece, and one end of the connecting piece away from the installation shaft is inserted into the fixing rod sleeve and the clamping cylinder in sequence, and the clamping cylinder is used to clamp the fixing rod sleeve and the connecting piece.

[0025] Furthermore, a clamping bevel is provided inside the clamping cylinder, one end of a clamping spring is fixed to the bottom of the clamping bevel, the other end of the clamping spring is fixed in the fixing rod sleeve, and a clamping bevel groove is provided on the connecting piece, and the clamping bevel groove is adapted to the clamping bevel.

[0026] Furthermore, an ejection channel is provided in the fixing rod sleeve, an ejection spring is fixedly provided at one end of the ejection channel, and the other end of the ejection channel accommodates the connecting member, and the connecting member makes the ejection spring in a compressed state.

[0027] Furthermore, the fixed block is provided with a torsion spring slot, an anti-expansion protrusion, and an anastomotic ring ejection slot, and the connecting piece is provided with a limit block. The two anastomotic-promoting inclined plates are connected by a connecting plate, and the connecting plate is plugged into the movable rod. An anastomotic ring ejection rod is connected to the connecting plate. Preferably, the connecting plate, the anastomotic ring ejection rod and the anastomotic-promoting inclined plate can be integrally formed, and the torsion spring slot is used to limit the abutment position of the torsion spring end and the fixed block, and the anti-expansion protrusion contacts the limit block to limit the spacing of the anastomotic ring, and the anastomotic ring ejection slot is adapted to the anastomotic ring ejection rod to be ejected and separated from the fixed block after the anastomosis of the anastomotic ring.

[0028] Furthermore, an anti-slip layer is provided on the outside of the fixed handle and the trigger handle.

[0029] Furthermore, the fixed handle is composed of a pair of shells clamped together, and the trigger handle is composed of a ring portion and a pressing portion, and the ring portion is connected to the toggle member.

[0030] Furthermore, reinforcing ribs are provided inside the shell.

[0031] To achieve the above object, the present invention further provides a method for anastomosing blood vessels by using the above-mentioned handheld trigger anastomosis ring device:

[0032] S1: Evert and fix the blood vessel on the anastomosis ring;

[0033] S2: Hold the fixed handle with one hand, and drive the toggle member to move by pressing the trigger handle to rotate it around the fixed handle. The toggle member drives the movable rod to move linearly, and the movable rod drives the anastomosis promoting inclined plate to extend forward. The anastomosis promoting inclined plate overcomes the elastic force of the torsion spring to make a pair of anastomosis rings fit together.

[0034] Preferably, when the device includes a first limit post clamped in the first limit groove, step S3A is executed after S2. The first limit post is first clamped in the middle of the first limit groove, and then the operator starts to check the anastomosis condition to confirm whether the anastomosis is good. Or:

[0035] A second limit groove is provided on the outer circumference of the anti-detachment ring in the device. Step S3B is executed after S2. The hook is first clamped in the second limit groove, and then the operator starts to check the anastomosis condition to confirm whether the anastomosis is good.

[0036] More preferably, when the device includes an anastomosis ring ejecting rod connected to the connecting plate and an anastomosis ring ejecting groove provided on the fixed block, S4 is executed after the operator checks that the anastomosis is good in S3A. Continue to pull the trigger handle in the direction close to the fixed handle to drive the anastomosis ring ejecting rod to pass through the anastomosis ring ejecting groove to eject the anastomosis ring to the fixed block, that is, continue to pull the trigger handle so that the first limit post is completely pressed to the inner bottom of the first limit groove. Or after the operator checks that the anastomosis is good in S3B, release the clamping in S3B and execute S4. Continue to pull the trigger handle to drive the anastomosis ring ejecting rod to pass through the anastomosis ring ejecting groove to eject the anastomosis ring to the fixed block.

[0037] Preferably, when the device includes a rotating dial, S0 is executed before S1. First, rotate the rotating dial to adjust the relative angle between the anastomosis ring and the handle assembly to ensure that the execution assembly faces upward, so that the operation vision is clear. When the operation space is limited when the handle assembly faces downward, make the handle assembly and the execution assembly face upward at the same time, with sufficient operation space and clear operation vision, and then execute S1.

[0038] More preferably, when the device includes a safety device, before executing S0, first ensure that the safety device is in the safety state to avoid accidentally touching the trigger handle to trigger the anastomosis ring to fit before blood vessel anastomosis, and then rotate the rotating dial.

[0039] Preferably, when the device includes a clamping cylinder, after the operator executes S4, S5 is executed to disconnect the execution assembly from the connection assembly, so that the connection assembly and the handle assembly can be recycled.

[0040] Compared with the prior art, the present invention has the following advantages and positive effects:

[0041] 1. The present invention provides a hand-held trigger anastomosis ring anastomosis blood vessel device, which can be held with one hand with a fixed handle, and the trigger handle can be pressed to rotate around the fixed handle to drive the toggle member to move, and the toggle member drives the movable rod to move linearly, and the movable rod drives the anastomosis-promoting inclined plate to extend forward, and the anastomosis-promoting inclined plate overcomes the elastic force of the torsion spring to make a pair of anastomosis rings fit. This setting can be operated with one hand, and by pressing the trigger handle hinged to the fixed handle, the backward movement of the trigger handle is converted into the forward extension of the movable rod and the anastomosis-promoting inclined plate. The operation is simple and labor-saving, which reduces the fatigue of the doctor and improves the stability of the operation. The anastomosis ring is subjected to a large force, which is sufficient to ensure the fit of the anastomotic blood vessels, so that it fits accurately and ensures the effect of vascular anastomosis.

[0042] 2. The present invention provides a hand-held trigger anastomotic ring anastomotic blood vessel device, which is used to limit the rotation angle of the trigger handle by providing a first limiting column and a first limiting groove. The first limiting column is clamped with the middle of the first limiting groove to facilitate fixation after blood vessel anastomosis, which not only prolongs the blood vessel adhesion time, but also provides time for checking the anastomosis condition.

[0043] 3. The present invention provides a handheld trigger anastomotic ring vascular anastomotic device, which rotates the dial wheel and other components to rotate the fixed rod sleeve and the movable rod to adjust the relative angle between the anastomotic ring and the handle assembly, so that the handle assembly and the actuator assembly can be facing upward at the same time, with ample operating space and a clear operating field of view.

[0044] 4. The present invention provides a hand-held trigger anastomotic ring vascular anastomosis device. Through the arrangement of the anastomotic ring ejection rod on the connecting plate and the anastomotic ring ejection groove on the fixed block, the trigger is pulled again to cause the anastomotic ring ejection rod to pass through the anastomotic ring ejection groove to eject the anastomotic ring to the fixed block. The moving distance and force of the anastomotic ring ejection rod can be easily controlled by the trigger pulling distance and force, thereby avoiding dislocation of the anastomotic ring when it detaches from the fixed block after anastomosis.

[0045] 5. The hand-held trigger anastomosis ring anastomosis device provided by the present invention can avoid the accidental touching of the trigger handle to trigger the anastomosis ring before the vascular anastomosis by setting a safety device, thereby improving the operational stability and safety. In addition, by coordinating with the front end design, that is, the distance between the two anastomosis-promoting inclined plates is greater than the width of the fixed block plus the length of the anastomosis needle, it is convenient to continue to press the trigger handle to push out the ring after the anastomosis ring is completely anastomosed, thereby preventing the anastomosis needle from being tilted and causing anastomosis failure. In addition, a second limiting groove is provided on the outer circumference of the anti-slip ring, so that the hook can be clamped in the second limiting groove to facilitate the inspection of the anastomosis condition.

[0046] 6. The handheld trigger anastomosis ring vascular anastomosis device provided by the present invention enables the execution component to be clamped with the connection component through the setting of the clamping cylinder and the connecting piece. After vascular anastomosis, the execution component is discarded for medical use, while the connection component and the handle component are disinfected and recycled.

[0047] In addition, the method for using the vascular anastomosis device further provided by the present invention can completely solve the problem that it is difficult to ensure the fitting degree of vascular anastomosis and the vascular anastomosis effect, and improves the convenience, stability and safety of vascular anastomosis operation, with simple operation, reduced vascular anastomosis operation time and improved anastomosis effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is the schematic structural diagram of Embodiment 1 of the present invention;

[0049] Figure 2 is Figure 1 the enlarged view at A;

[0050] Figure 3 is the schematic structural diagram of Embodiment 2 of the present invention;

[0051] Figure 4 is the schematic structural diagram of Embodiment 3 of the present invention;

[0052] Figure 5 is the schematic structural diagram of Embodiment 4 of the present invention;

[0053] Figure 6 is the schematic structural diagram of Embodiment 5 of the present invention;

[0054] Figure 7 is the exploded view of the handle assembly of Embodiment 5;

[0055] Figure 8 is the enlarged view of the execution component of Embodiment 5;

[0056] Figure 9 is Figure 8 the exploded view of;

[0057] Figure 10 is the cross-sectional view of the connection component of Embodiment 5;

[0058] Figure 11 is the schematic structural diagram of the anti-detachment ring of Embodiment 6;

[0059] Figure 12 is the cross-sectional view of the handle assembly of Embodiment 6.

[0060] In the figure: 1. handle assembly; 101. fixed handle; 102. trigger handle; 103. toggle member; 104. first concave member; 105. first limiting column; 106. first limiting groove; 107. ring; 108. pressing portion; 109. shell; 110. reinforcing rib; 111. anti-slip layer; 112. snap-in hole; 113. snap-in column; 2. connecting assembly; 201. fixed rod sleeve; 202. movable rod; 203. anastomosis-promoting inclined plate; 204. second limiting column; 205. positioning ring; 206. positioning groove; 207. limiting cap; 208. anti-slip ring; 209. limiting groove; 210. guide column; 211. second concave member; 212. second positioning pin; 213. U-shaped member; 2 14. Rotate the dial wheel; 215. Connecting plate; 216. First positioning pin; 217. Third positioning pin; 218. Second limiting groove; 219. Snap-fit cylinder; 220. Snap-fit italic; 221. Snap-fit spring; 222. Snap-fit bevel groove; 223. Ejection channel; 224. Ejection spring; 225. Elastomeric ring ejector rod; 3. Actuator; 301. Elastomeric ring; 302. Fixing block; 303. Mounting shaft; 304. Torsion spring; 305. Torsion spring slot; 306. Anti-expansion protrusion; 308. Elastomeric ring ejector groove; 309. Connecting piece; 307. Limiting block; 4. Safety device; 401. Control button; 402. Control spring; 403. Swivel ring; 404. Rotating plate; 405. Hook. DETAILED DESCRIPTION

[0061] In order to better understand the present invention, the present invention is further described below in conjunction with specific embodiments and drawings.

[0062] Example 1

[0063] A hand-held trigger anastomosis ring anastomosis device, such as Figure 1 As shown, it includes a handle assembly 1 and an actuator assembly 3 connected by a connecting assembly 2, the handle assembly 1 includes a fixed handle 101 and a trigger handle 102 hinged to the fixed handle 101, the trigger handle 102 is connected to a toggle member 103, and the toggle member 103 is a paddle;

[0064] Specifically, Figure 1 , 2 As shown, the connecting assembly 2 includes a fixed rod sleeve 201 and a movable rod 202, the fixed rod sleeve 201 is connected to the fixed handle 101, the movable rod 202 can repeatedly move linearly relative to the fixed rod sleeve 201, one end of the movable rod 202 is connected to the toggle member 103, and the other end of the movable rod 202 is connected to two anastomosis-promoting inclined plates 203, one end of the two anastomosis-promoting inclined plates 203 is close to each other and the other end is far away from each other;

[0065] Specifically, Figure 2As shown, the actuator 3 includes a pair of anastomotic rings 301, the anastomotic rings 301 are respectively connected to the fixing blocks 302, the fixing blocks 302 are respectively sleeved on the mounting shafts 303, the mounting shafts 303 are sleeved with torsion springs 304, the two ends of the torsion springs 304 are respectively abutted on the fixing blocks 302, and the mounting shafts 303 are connected to the fixing rod sleeve 201;

[0066] The trigger handle 102 rotates around the fixed handle 101 to drive the toggle member 103 to move, and the toggle member 103 drives the movable rod 202 to move forward linearly. The movable rod 202 drives the anastomosis-promoting inclined plate 203 to extend forward, and the anastomosis-promoting inclined plate 203 presses the fixed block 302 upward to overcome the elastic force of the torsion spring 304 to make a pair of anastomosis rings 301 fit together.

[0067] Example 2

[0068] A hand-held trigger anastomosis ring anastomosis device, such as Figure 3 As shown, the difference from Example 1 is that the toggle member 103 is a paddle, which is connected to the movable rod 202 through the first concave member 104. The first concave member 104 is used to increase the connection area between the toggle member 103 and the movable rod 202 and strengthen the connection. When the trigger handle 102 moves forward and backward, the movable rod 202 is driven to move forward and backward through the first concave member 104. The rest of the settings are the same as those of Example 1.

[0069] Example 3

[0070] A hand-held trigger anastomosis ring anastomosis device, such as Figure 4 As shown, the difference from Example 1 is that two movable rods 202 are provided, which are respectively plugged into one end of two anastomosis-promoting inclined plates 203, so as to make the anastomosis-promoting inclined plates 203 bear force evenly and stably, and the anastomosis-promoting inclined plates 203 are positioned by the first positioning pin 216 after being plugged into the movable rods 202, and the end faces of the plugging ends of the two anastomosis-promoting inclined plates 203 and the faces corresponding to the plugging ends are respectively coplanar. The rest of the configuration is the same as Example 1.

[0071] Example 4

[0072] A hand-held trigger anastomosis ring anastomosis device, such as Figure 5 As shown, the difference from Example 1 is that the two anastomosis-promoting inclined plates 203 are connected by a connecting plate 215, and the two anastomosis-promoting inclined plates 203 can be integrally formed with the connecting plate 215. The connecting plate 215 is plugged into the movable rod 202. After the connecting plate 215 and the movable rod 202 are plugged in, they are positioned by the first positioning pin 216. The rest of the settings are the same as Example 1.

[0073] Example 5

[0074] A hand-held trigger anastomosis ring anastomosis device, such as Figure 6 , 7As shown, the difference from Example 4 is that the toggle member 103 is a toggle, the fixed handle 101 is provided with a first limiting column 105, and the trigger handle 102 is provided with a first limiting groove 106, which is matched with the first limiting column 105 to limit the rotation angle of the trigger handle 102. The first limiting column 105 can be clamped in the middle of the first limiting groove 106, so that the anastomotic ring 301 is fixed after anastomosis, which is convenient for the operator to check the anastomosis. After confirming that the anastomosis is good, the trigger handle 103 can be pressed continuously to make the first limiting column 105 enter the bottom of the first limiting groove 106. More specifically, the trigger handle 102 is composed of a ring portion 107 and a pressing portion 108, a first limiting groove 106 is provided on the pressing portion 108, the ring portion 107 is connected to the toggle member 103, the toggle member 103 is connected to the first concave member 104, and the ring portion 107 facilitates opening the trigger and retracting the front end.

[0075] Specifically, Figure 7 As shown, the fixed handle 101 is composed of a pair of housings 109 that are clamped together. The housings 109 are provided with clamping holes 112 and clamping posts 113. The clamping holes 112 of one housing 109 are matched with the clamping posts 113 of the other housing 109. A reinforcing rib 110 is provided inside the fixed handle 101, and an anti-slip layer 111 is provided outside the fixed handle 101 and the trigger handle 102.

[0076] Specifically, Figure 7 As shown, there are two movable rods 202, and one end of each movable rod 202 away from the anastomosis-promoting inclined plate 203 is connected to a second limiting column 204. The second limiting columns 204 pass through the positioning groove 206 on the positioning ring 205 to connect to the limiting cap 207. The positioning ring 205 and the positioning groove 206 are used to limit the distance between the two movable rods 202. The limiting cap 207 is used to prevent the second limiting column 204 from falling out from the front end of the positioning groove 206. The outer sleeve of the positioning ring 205 is connected with an anti-slip ring 208, and the anti-slip ring 208 is used to prevent the second limiting column 204 from falling out from the side opening of the positioning groove 206.

[0077] Specifically, Figure 6 , 7 As shown, a limiting groove 209 is provided on the fixed rod sleeve 201 , and the limiting groove 209 is matched with the movable rod 202 . The limiting groove 209 is used to limit the linear movement of the movable rod 202 .

[0078] Specifically, Figure 6 , 7 As shown in Figure 10, the positioning ring 205 is sleeved on the guide column 210, one end of the guide column 210 is confined in the second concave member 211, the second concave member 211 passes through the reinforcing rib 110 and is fixed to the inner wall of the shell 109, and the other end of the guide column 210 is fixed to the fixed rod sleeve 201 through the second positioning pin 212. The guide column 210 is used to guide the linear movement of the positioning ring 205.

[0079] Specifically, as shown in Figure 6 , 7 , and Figure 10, a U-shaped member 213 is provided between the anti-loosening ring 208 and the first concave member 104. The inner part of the U-shaped member 213 is in clearance fit with the anti-loosening ring 208, and the outer part of the U-shaped member 213 is connected to the first concave member 104. The positioning ring 205 and the anti-loosening ring 208 are fixed by a third positioning pin 217, and the third positioning pin 217 is used to prevent relative rotation between the positioning ring 205 and the anti-loosening ring 208. The inner part of the U-shaped member 213 is in clearance fit with the anti-loosening ring 208. When the fixed rod sleeve 201 rotates, the fixed rod sleeve 201 drives the anastomosis ring 301, the movable rod 202, and the guide post 210 to rotate. The movable rod 202 drives the anastomosis inclined plate 203 to rotate, and the guide post 210 drives the positioning ring 205 and the anti-loosening ring 208 to rotate within the U-shaped member 213. Therefore, the relative angle between the anastomosis ring 301 and the handle assembly 1 can be adjusted, so that both the handle assembly 1 and the execution assembly 3 can face upward at the same time, with sufficient operating space and clear operating vision.

[0080] Specifically, as shown in Figure 6 , 7 , and Figure 10, a rotating dial 214 is provided on the outside of the fixed rod sleeve 201, and the rotating dial 214 is used to facilitate the rotation of the fixed rod sleeve 201 and the movable rod 202 to adjust the relative angle between the anastomosis ring 301 and the handle assembly 1.

[0081] Specifically, as shown in Figure 6 , 7 , and Figure 10, a safety device 4 is provided on the handle assembly 1 to prevent the anastomosis of the anastomosis ring 301 caused by accidentally touching the trigger handle 102. Specifically, the safety device 4 includes a control button 401, a control spring 402, a rotating ring 403, a rotating plate 404, and a hook 405. The control button 401 extends out of the housing 109. The bottom of the control button 401 is connected to one end of the control spring 402, and the other end of the control spring 402 is connected to the reinforcing rib 110. One side of the control button 401 is connected to the rotating ring 403, and the rotating ring 403 is connected to the hook 405 through the rotating plate 404. The hook 405 is used to contact the anti-loosening ring 208 to limit the linear movement of the anti-loosening ring 208 and thus limit the linear movement of the movable rod 202. By pressing the control button 401, the control spring 402 is compressed, and the rotating plate 404 drives the hook 405 to rotate upward around the rotating ring 403, and the hook 405 disengages from the anti-loosening ring 208. On the contrary, when the hook 405 contacts the anti-loosening ring 208, the safety device 4 is in the safety state.

[0082] Specifically, as shown in Figure 8 , 9As shown, the fixed block 302 is provided with a torsion spring slot 305, an anti-expansion protrusion 306, and an anastomosis ring ejection groove 308. The connecting member 309 is provided with a limiting block 307, and the connecting plate 215 is connected with an anastomosis ring ejection rod 225. The torsion spring slot 305 is used to define the abutting position of the end of the torsion spring 304 and the fixed block 302. The anti-expansion protrusion 306 contacts the limiting block 307 and is used to define the distance between the anastomosis rings 301.

[0083] Specifically, as Figure 8 , 9 , and as shown in FIG. 10, the mounting shaft 303 is inserted into the connecting member 309, and the connecting member 309 is clamped in the fixed rod sleeve 201 through the clamping cylinder 219. The arrangement of the connecting member 309 and the clamping cylinder 219 enables the detachable connection of the actuating assembly 3 and the connecting assembly 2, so that the connecting assembly 2 and the handle assembly 1 can be recycled.

[0084] Specifically, as Figure 9 , 10 , and as shown, one end of the connecting member 309 away from the mounting shaft 303 sequentially penetrates into the fixed rod sleeve 201 and the clamping cylinder 219. The clamping cylinder 219 is internally provided with a clamping inclined body 220. One end of a clamping spring 221 is fixed to the bottom of the clamping inclined body 220, and the other end of the clamping spring 221 is fixed in the fixed rod sleeve 201. The connecting member 309 is provided with a clamping inclined groove 222, and the clamping inclined groove 222 is adapted to the clamping inclined body 220. By pressing down the clamping cylinder 219, the clamping spring 221 is compressed, and the clamping inclined body 220 is disengaged from the clamping inclined groove 222, and the connecting member 309 can be pulled outwards to disengage it from the fixed rod sleeve 201.

[0085] Specifically, as Figure 10 , and as shown, the fixed rod sleeve 201 is internally provided with an ejection channel 223. One end of the ejection channel 223 is fixedly provided with an ejection spring 224, and the other end of the ejection channel 223 accommodates the connecting member 309, and the connecting member 309 makes the ejection spring 224 in a compressed state. After pressing the clamping cylinder 219, the clamping inclined body 220 is disengaged from the clamping inclined groove 222, and the ejection spring 224 in the compressed state restores its deformation to generate an elastic force and pushes the connecting member 309 outwards to disengage it from the fixed rod sleeve 201.

[0086] Embodiment 6

[0087] A handheld trigger anastomosis ring blood vessel anastomosis device, as Figure 11 , 12 , and as shown, the difference from Embodiment 5 is that the limiting post 105 on the fixed handle 101 and the first limiting groove 106 on the trigger handle 102 are replaced by the following settings:

[0088] A second limiting groove 218 is provided on the outer circumference of the anti - detachment ring 208. The second limiting groove 218 is adapted to the hook 405 for defining the contact position between the hook 405 and the anti - detachment ring 208, and the hook 405 can be clamped in the second limiting groove 218 for facilitating the inspection of the anastomosis condition.

[0089] The remaining settings are the same as those in Embodiment 5.

[0090] The present invention further includes a method for anastomosing blood vessels by applying the above - mentioned handheld trigger anastomosis ring device:

[0091] S1: Evert and fix the blood vessel on the anastomosis ring 301;

[0092] S2: Hold the fixed handle 101 with one hand, and press the trigger handle 102 to make it rotate around the fixed handle 101 to drive the toggling member 103 to move. The toggling member 103 drives the movable rod 202 to move linearly, and the movable rod 202 drives the anastomosis - promoting inclined plate 203 to extend forward. The anastomosis - promoting inclined plate 203 overcomes the elastic force of the torsion spring 304 to make a pair of anastomosis rings 301 fit together.

[0093] Preferably, when the device includes the first limiting post 105 clamped in the first limiting groove 106, after S2, step S3A is executed. First, the first limiting post 105 is clamped in the middle of the first limiting groove 106, and then the operator starts to check the anastomosis condition to confirm whether the anastomosis is good. Or:

[0094] A second limiting groove 218 is provided on the outer circumference of the anti - detachment ring 208 in the device. After S2, step S3B is executed. The hook 405 is first clamped in the second limiting groove 218, and then the operator starts to check the anastomosis condition to confirm whether the anastomosis is good.

[0095] More preferably, when the device includes the anastomosis ring ejecting rod 225 connected to the connecting plate 215 and the anastomosis ring ejecting groove 308 is provided on the fixed block 302, after the operator checks that the anastomosis is good in S3A, S4 is executed. Continue to pull the trigger handle 102 in the direction close to the fixed handle 101 to drive the anastomosis ring ejecting rod 225 to pass through the anastomosis ring ejecting groove 308 to eject the anastomosis ring 301 to the fixed block 302, that is, continue to pull the trigger handle 102 to press the first limiting post 105 completely to the inner bottom of the first limiting groove 106. Or after the operator checks that the anastomosis is good in S3B, release the clamping in S3B and execute S4. Continue to pull the trigger handle 102 to drive the anastomosis ring ejecting rod 225 to pass through the anastomosis ring ejecting groove 308 to eject the anastomosis ring 301 to the fixed block 302.

[0096] Preferably, when the rotating dial 214 is included in the device, S0 is executed before S1. First, rotate the rotating dial 214 to adjust the relative angle between the anastomosis ring 301 and the handle assembly 1, ensuring that the execution assembly 3 faces upward, so as to ensure clear operation vision. When the operation space is limited when the handle assembly 1 faces downward, make the handle assembly 1 and the execution assembly 3 face upward at the same time, so that the operation space is sufficient and the operation vision is clear, and then execute S1.

[0097] More preferably, when the safety device 4 is included in the device, before executing S0, first determine that the safety device is in a safety state to avoid accidentally touching the trigger handle 102 before blood vessel anastomosis to trigger the fitting of the anastomosis ring 301, and then rotate the rotating dial 214.

[0098] Preferably, when the clamping cylinder 219 is included in the device, after the operator executes S4, execute S5 to disconnect the execution assembly 3 from the connection assembly 2, so that the connection assembly 2 and the handle assembly 1 can be recycled.

[0099] The embodiments of the present invention have been described in detail above, but the above content is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention should still fall within the scope covered by this patent.

Claims

1. A handheld trigger anastomotic ring vascular anastomosis device, comprising a handle assembly (1) and an actuator assembly (3) connected by a connecting assembly (2), characterized in that: The handle assembly (1) comprises a trigger handle (102) hinged to a fixed handle (101), wherein the trigger handle (102) is connected to a toggle member (103); The connecting assembly (2) comprises a movable rod (202) capable of repeated linear movement relative to a fixed rod sleeve (201), the fixed rod sleeve (201) being connected to the fixed handle (101), one end of the movable rod (202) being connected to the toggle member (103), and the other end of the movable rod (202) being connected to two anastomosis-promoting inclined plates (203), one end of the two anastomosis-promoting inclined plates (203) being close to each other and the other end being away from each other; The actuator assembly (3) comprises a pair of anastomotic rings (301) respectively connected to a fixing block (302), the fixing block (302) is respectively sleeved on a mounting shaft (303), a torsion spring (304) is sleeved on the mounting shaft (303), two ends of the torsion spring (304) are respectively abutted against the fixing block (302), and the mounting shaft (303) is connected to the fixing rod sleeve (201); The movable rod (202) is plugged into the two anastomosis-promoting inclined plates (203), and after being plugged in, they are fixed by a first positioning pin (216); The end of the movable rod (202) away from the anastomosis-promoting inclined plate (203) is connected to a second limiting column (204), and the second limiting column (204) passes through the positioning groove (206) on the positioning ring (205) to connect to the limiting cap (207), and the limiting cap (207) is used to prevent the second limiting column (204) from escaping from the positioning groove (206). The positioning ring (205) is outer-mounted with a U-shaped piece (213) connected to the trigger handle (102), and the positioning ring (205) is matched with the internal clearance of the U-shaped piece (213) to enable the positioning ring (205) to rotate around the U-shaped piece (213) to adjust the relative angle between the actuator assembly (3) and the handle assembly (1); The toggle member (103) is a paddle, one end of which is fixedly connected to the trigger handle (102), and the other end of which is fixedly connected to the first concave member (104), and the first concave member (104) is internally connected to the U-shaped member (213).

2. The handheld trigger anastomotic ring blood vessel anastomosis device according to claim 1, characterized in that, The fixed rod sleeve (201) is provided with a rotating dial (214) outside, and the rotating dial (214) is used to control the rotation of the fixed rod sleeve (201) and the movable rod (202) to adjust the relative angle between the actuator assembly (3) and the handle assembly (1).

3. The handheld trigger anastomosis ring vascular anastomosis device according to claim 1, characterized in that, The fixed rod sleeve (201) is provided with a limiting groove (209), the limiting groove (209) is adapted to the movable rod (202), and the limiting groove (209) is used to limit the linear movement of the movable rod (202); The positioning ring (205) is sleeved on the guide column (210), one end of the guide column (210) is confined in a second concave member (211), the second concave member (211) is fixed in the fixed handle (101), the other end of the guide column (210) is fixed to the fixed rod sleeve (201) via a second positioning pin (212), and the guide column (210) is used to guide the linear movement of the positioning ring (205).

4. The handheld trigger anastomotic ring vascular anastomosis device according to claim 2, characterized in that, The movable rods (202) are provided in pairs, the positioning ring (205) is externally connected with an anti-slip ring (208), the anti-slip ring (208) is externally provided with the U-shaped part (213), the anti-slip ring (208) is clearance-matched with the inside of the U-shaped part (213), and the anti-slip ring (208) is used to prevent the second limiting column (204) from slipping out of the positioning groove (206).

5. A handheld trigger anastomotic ring blood vessel anastomosis device according to claim 4, characterized in that, The handle assembly (1) is provided with a safety device (4) for preventing the anastomotic ring (301) from being anastomosed due to accidental contact with the trigger handle (102); the safety device (4) is connected to the anti-slip ring (208) to restrict the linear movement of the anti-slip ring (208) and thereby restrict the linear movement of the movable rod (202).

6. The handheld trigger anastomotic ring vascular anastomosis device according to claim 5, characterized in that, A second limiting groove (218) is provided on the outer circumference of the anti-slip ring (208), and the second limiting groove (218) is adapted to the safety device (4) and is used to limit the contact position between the safety device (4) and the anti-slip ring (208), and the safety device (4) is snap-fitted into the second limiting groove (218) to facilitate the inspection of the matching condition.

7. A handheld trigger anastomosis ring blood vessel anastomosis device according to claim 6, characterized in that, The installation shaft (303) is inserted into the connecting piece (309), and one end of the connecting piece (309) away from the installation shaft (303) is inserted into the fixing rod sleeve (201) and the clamping cylinder (219) in sequence, and the clamping cylinder (219) is used to clamp the fixing rod sleeve (201) and the connecting piece (309).

8. The handheld trigger anastomotic ring blood vessel anastomosis device according to claim 7, characterized in that, An ejection channel (223) is arranged inside the fixed rod sleeve (201), an ejection spring (224) is fixedly arranged at one end of the ejection channel (223), and the other end of the ejection channel (223) accommodates the connecting member (309), and the connecting member (309) makes the ejection spring (224) in a compressed state.

9. A method of applying a handheld trigger anastomotic ring vascular anastomosis device as described in any one of claims 1-8, characterized in that, The following steps are involved: The trigger handle (102) is pressed to rotate around the fixed handle (101) to drive the toggle member (103) to move, and the toggle member (103) drives the movable rod (202) to move linearly, and the movable rod (202) drives the anastomosis-promoting inclined plate (203) to extend forward, and the anastomosis-promoting inclined plate (203) overcomes the elastic force of the torsion spring (304) to make a pair of anastomosis rings (301) fit together.

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