A device capable of accurately anastomosing tissue tube walls end-to-end

Abstract

The present invention discloses an instrument that can be used for end-to-end precise anastomosis of tissue tube walls, which includes two clamps, each of which is provided with a structure for maintaining the clamping state after clamping, and is used to enable the clamps to clamp and fix the two ends of the tissue tube wall to be sutured in a clamping state through the clamping maintaining structure; a hard rod body connecting the two clamps, and adjusting the distance between the two clamps by adjusting the distance between the hard rod body; a distance adjustment and locking structure, which is used to adjust and lock the positional relationship between the hard rod body and the two clamps after adjustment. The clamps include a clamp tube, a moving rod in the clamp tube, and a rotating opening and closing structure is provided at the rear end of the moving rod to control the opening and closing of each clamp head by rotation. The above arrangement can achieve rapid fixing of the two clamp tubes to the ends of the tissue tube wall, and rapid distance adjustment, and maintain the clamping and anastomosis state after operation, without the need for additional manual operation, and convenient suturing of the anastomosed tissue tube wall.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular is an auxiliary docking device for assisting in completing the suturing of a small human cavity, and specifically is a device that can be used for end-to-end precise anastomosis of tissue tube walls. Background Art

[0002] For the end-to-end suturing of the walls of small tissue tubes such as the trachea and blood vessels, four threads are currently set, two on each side, and the ends of the tissue tube walls are maintained in a specific position by suspension to achieve end-to-end anastomosis. After the anastomosis, the suturing is completed with suture threads. However, the operation of setting the suture threads to the ends of the tissue tube walls accurately and effectively is highly complex and difficult to operate. In addition, because the threads are fixed at the ends, it is particularly easy to damage the tube walls and also easy to cause traction injuries during the traction process.

[0003] Therefore, a new end-to-end effective anastomosis of tissue vessel walls is needed to effectively complete the suturing of the instrument.

[0004] In view of the above technical problems, the present invention provides a device that can be used for end-to-end precise anastomosis of tissue vessel walls. Summary of the invention

[0005] In view of the problem that the above-mentioned suture suspension is easy to cause damage to the end of the tissue wall, it is thought that if a double clamp is used for clamping operation, the end of the tube wall can be anastomosed by bringing the two clamps close together. This method can avoid the problem that the suture is easy to cause damage to the tissue tube wall, but why this method is not used clinically is that the surgical incision for end-to-end suturing of smaller tube walls is generally small, and the incision length is controlled within the range of less than 5 cm. In this way, if there is a dedicated operator standing in the operating position to maintain the clamping and position stability of the current clamp, the suture operator will have no effective standing operating space due to the position of the clamping operator, resulting in the impracticability of the currently commonly used two clamps to directly clamp the end of the tissue tube wall.

[0006] After the clamping forceps clamp the end, because it clamps the cross section, the damage to the tube wall is small and the recoverability is strong. In addition, the clamping operation is simple and fast. What needs to be solved now is the problem that the operation using the clamping forceps requires special manpower. How to ensure that manpower operation is only required during the clamping process and position adjustment process, and that the two clamps can stably maintain the clamped state and the close anastomotic state after clamping and anastomosis is the key problem that needs to be solved.

[0007] The present invention uses a tubular clamp for minimally invasive surgery, in which a moving rod for controlling the opening and closing of the clamp head is arranged; this is a common technology in the prior art, and currently the movement of the moving rod is usually controlled by opening and closing the clamp arm to control the opening and closing of the clamp head, but this time only the front end part of the tubular clamp except the clamp arm is selected, and the tubular clamp is improved; a clamping clamp head is arranged at the first end of the clamp tube, a moving rod is arranged inside the clamp tube, and a rotating opening and closing structure for controlling the moving rod to move forward and backward by rotating action is arranged at the second end of the clamp tube; two tubular clamps are arranged, and an adjustment and locking device that can adjust and lock the distance between the two is arranged in the middle of the tubular clamp tube. The structure includes an adjustment and locking structure including at least one adjustment rod and a locking structure for ensuring the position of the adjustment rod. When the tissue tube wall clamped by the two sets of clamp tubes reaches the anastomosis position, the position relationship of the two sets of clamp tubes is locked. When in use, the two clamp tubes are first set to the surgical site in sequence, and the clamp head is adjusted to clamp the end of the tissue tube wall by rotating the rotary opening and closing structure. When there is no external force to rotate, the clamp head maintains a clamping state. At this time, the distance between the two clamp tubes is relatively large. Afterwards, the position adjustment and locking structure are combined between the two clamp tubes to adjust the distance between the two clamp tubes. The distance between the two clamp tubes is adjusted, and the distance between the two clamp tubes corresponds to the distance between the two clamp tubes. In this way, the two clamp tubes can be quickly fixed to the ends of the tissue tube wall and the distance can be quickly adjusted. After the operation, the instrument maintains a clamping and anastomosis state without additional manual operation. At this time, the operator can very conveniently complete the end-to-end suturing operation of the anastomosed tissue tube wall.

[0008] The specific technical solution is: a device capable of end-to-end precise anastomosis of tissue tube walls, comprising:

[0009] Two clamps, each of which is provided with a structure for maintaining the clamped state after clamping; the clamps are used to clamp and fix the two ends of the tissue tube wall to be sutured in a clamped state through the clamping maintaining structure;

[0010] The hard rod connects the two clamps, and the distance between the two clamps can be adjusted by adjusting the distance between the hard rod;

[0011] The distance adjustment and locking structure is used to adjust and lock the adjusted positional relationship between the hard rod and the two clamps. The corresponding operation process is that when the two sections of tissue tube walls driven by the clamps are anastomosed to a suitable suture position, the adjusted positional relationship between the hard rod and the two clamps is locked by the locking structure.

[0012] Further, the clamp is a tubular clamp, and the tubular clamp includes:

[0013] Clamp pipe;

[0014] A clamping tongs head is arranged at the first end of the clamp tube;

[0015] A moving rod is arranged in the clamp tube. The moving rod is arranged in the clamp tube. The forward and backward movement of the moving rod in the clamp tube drives the opening and closing of the clamp arm and the clamp head.

[0016] The rotary opening and closing structure is arranged at the second end of the clamp tube, and the moving rod can be moved forward and backward in the clamp tube by rotating the rotary opening and closing structure in different directions.

[0017] Furthermore, the rotary opening and closing structure includes a structure with a threaded channel section that rotates relative to the clamp pipe but does not undergo displacement changes, and a threaded section corresponding to the threaded pipe section is arranged on the corresponding moving rod; the threaded section is driven to move forward and backward by the rotation of the threaded pipe section.

[0018] Furthermore, a moving groove is arranged inside the clamp tube, and an anti-rotation block moving in the moving groove is arranged on the moving rod; this arrangement can ensure that the rotation of the rotating opening and closing structure drives the moving rod to move forward and backward.

[0019] Furthermore, the rotating opening and closing structure also includes a coupling tube coupled to the clamp tube, an annular coupling groove is provided on the coupling tube, and a coupling ring extends from the clamp tube and coupled to the coupling groove. The cooperation between the coupling groove and the coupling ring ensures that the rotating opening and closing structure and the clamp tube only rotate relative to each other but do not move relative to each other.

[0020] Furthermore, the two clamp tubes are respectively a first clamp tube and a second clamp tube, the first end of the hard rod body is arranged on the first clamp tube, and a channel providing structure is arranged on the second clamp tube, the channel providing structure constructs a moving channel for the hard rod body to move, and the distance adjustment and locking structure includes a matching structure 1 arranged on the hard rod body and a matching structure 2 arranged on the side wall of the moving channel; when the matching structure 1 of the hard rod body matches with the matching structure 2, the distance adjustment and locking are achieved.

[0021] Furthermore, the first end of the hard rod body is rotatably arranged on the outside of the first clamp tube, and the combination and separation of the two clamps are achieved by rotating the angle of the hard rod body. The hard rod body is combined with the distance adjustment and locking structure on the second clamp tube, and the distance is adjusted and locked after the combination. Before the combination, each clamp is operated separately. This arrangement can ensure that the two clamps are operated separately before the combination, which can greatly reduce the difficulty of operating the two clamps at the same time. After entering, you only need to rotate the angle of the hard rod body so that the hard rod body is combined with the distance adjustment and locking structure, and the distance can be adjusted after the combination.

[0022] Furthermore, when the first clamp tube and the second clamp tube are in the combined state, the matching structure is arranged on a hard rod body near the first clamp tube and in the outer area of ​​the first clamp tube; this arrangement can ensure adjustment and locking in the final close state without locking at a long distance.

[0023] Furthermore, a guide section connected to the matching structure is provided to guide the two clamp tubes to approach each other in the combined state. During specific operation, when the distance between the two clamp tubes is large, the guide section is rotated to the position of the other clamp tube, and the two clamp tubes are combined through the guide section. After the combination, the two clamp tubes are guided to approach each other.

[0024] Furthermore, when the first clamp tube and the second clamp tube are combined, the two clamp tubes are parallel and the front and rear ends are in the same position, and the opening and closing paths of the two clamp heads are parallel. This arrangement can ensure that when they are combined and then moved in parallel, the clamped tissue tube walls can be effectively anastomosed together to ensure the suturing operation.

[0025] Furthermore, a setting platform is provided on the two clamp pipes, and it is easier to set up various structures on the platform. Furthermore, a rectangular block is provided on the outer side of the two clamp pipes, and the position of the rectangular block and the clamp pipes is fixed. The setting platform is a surface of the rectangular block.

[0026] Furthermore, two position adjustment and locking structures are provided, or one adjustment and locking structure and one guiding structure; the guiding structure includes a guiding hard rod rotatably provided on one clamp tube and an openable channel providing structure 2 provided on another clamp tube; the channel is opened, the guiding hard rod enters into the channel of the channel providing structure, and the channel is closed.

[0027] Technical Effects

[0028] By providing two clamps that can maintain a clamped state, a hard rod connecting the two clamps, and a distance adjustment and locking structure for adjusting and locking the hard rod between the two clamps, it is possible to ensure that the precise anastomosis instrument can reach the anastomotic position and maintain the anastomotic position by clamping the two ends of the tissue tube wall without the need for human assistance to maintain the state.

[0029] By arranging the clamp tube, the clamp head, the moving rod and the clamping clamp with a rotating opening and closing structure, the weight of the clamping clamp can be reduced to the greatest extent, and the position maintenance can be implemented more simply; avoiding the risk of imbalance caused by the clamp arm maintaining structure being a clamp arm with excessive gravity.

[0030] By arranging the hard rod body to be rotatable, the combination and separation of the two clamps can be achieved by rotation, which can ensure that the two clamps can perform clamping operations separately in a separated state, avoiding the difficulty of simultaneous operation.

[0031] When the first clamp tube and the second clamp tube are in a combined state, the two clamp tubes are parallel and the front and rear end positions are consistent, and the opening and closing paths of the two clamp heads are set in parallel, which can ensure that after the combination, the clamped tissue tube wall can be effectively anastomosed only by parallel movement, thereby ultimately ensuring the effectiveness of the suturing operation.

[0032] When the first clamp tube and the second clamp tube are in a combined state, a matching structure is arranged on a hard rod body near the first clamp tube and in the outer area of ​​the first clamp tube, and a guide section is arranged on the matching structure of the hard rod body. This can ensure that guidance is provided for parallel movement when the distance is large without direct adjustment, thereby reducing the difficulty of initial operation and ensuring precise adjustment after reaching the effective distance.

[0033] By providing two adjusting and locking structures or one set of adjusting and locking structures and one set of guiding structures, it can be ensured that the stability requirement of the entire structure can be maintained by providing a thinner rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the present invention in which the distance adjustment and locking structure is implemented as teeth and elastic sheets and the two clamp tubes are close to each other;

[0035] Figure 2 This is a schematic diagram of the structure in which the distance adjustment and locking structure of the present invention is implemented as teeth and elastic sheets and the two clamp tubes are away from each other;

[0036] Figure 3 It is a schematic diagram of the longitudinal cross-section structure of the rotary opening and closing structure of the present invention;

[0037] Figure 4 It is an implementation method of the distance adjustment and locking structure teeth and elastic sheet of the present invention and a partially enlarged structural schematic diagram of the blocking sheet in the blocking state;

[0038] Figure 5 It is an implementation method of the distance adjustment and locking structure teeth and elastic piece of the present invention and a partially enlarged structural schematic diagram of the blocking piece in an open state;

[0039] Figure 6 It is a schematic diagram of the overall structure of the two clamp tubes being away from each other in an embodiment of the present invention in which the distance adjustment and locking structure is a toothed piece and an elastic sheet and a spring is provided;

[0040] Figure 7 It is a partial enlarged structural schematic diagram of the state where the two clamp tubes are away from each other in an embodiment of the present invention in which the distance adjustment and locking structure is a toothed tooth and an elastic sheet and a spring is provided;

[0041] Figure 8 It is a schematic diagram of the overall structure of the embodiment of the present invention in which the distance adjustment and locking structure is a toothed tooth and an elastic sheet, in which the two clamp tubes are close to each other and the hard rod body is rotated to the open state;

[0042] Fig. 9 It is a schematic diagram of a single clamp pipe structure of the present invention;

[0043] Fig.10It is a schematic diagram of the distance adjustment and locking structure on a single clamp pipe of the present invention;

[0044] Fig.11 It is a schematic diagram of the structure in which the distance adjustment and locking structure of the present invention is an implementation mode of the threaded section 2 and the rotation adjustment structure and the two clamp pipes are in a state of being away from each other;

[0045] Fig.12 It is a schematic diagram of the structure in which the distance adjustment and locking structure of the present invention is an implementation mode of the threaded section 2 and the rotation adjustment structure and the two clamp pipes are close to each other;

[0046] Fig.13 It is a partially enlarged structural schematic diagram of an implementation method of the distance adjustment and locking structure of the present invention as a thread segment 2 and a rotation adjustment structure;

[0047] Description of main reference numerals

[0048] 1. Hard rod body; 11. Extension section; 211. First clamp tube; 212. Second clamp tube; 22. Clamp head; 23. Moving rod; 231. Threaded section one; 241. Threaded channel section one; 242. Moving groove; 243. Anti-rotation block; 244. Combination tube; 245. Annular combining groove; 246. Combination ring; 3. Setting platform; 41. Teeth; 42. Elastic sheet; 43. Protruding column one; 44. Protruding column two; 441. Shaft hole; 442. Rotating shaft; 45. Sealing sheet; 46. Spring; 47. Protruding column three; 48. Protruding column four; 51. Threaded section two; 52. Rotation adjustment structure; 53. Fixed structure; 54. Guide hard rod; 55. Protruding column five. DETAILED DESCRIPTION

[0049] Example 1

[0050] refer to Figure 1-13 , a device capable of end-to-end precise anastomosis of tissue tube walls, comprising:

[0051] Two clamps, each of which is provided with a structure for maintaining the clamped state after clamping; the clamps are used to clamp and fix the two ends of the tissue tube wall to be sutured in a clamped state through the clamping maintaining structure;

[0052] The hard rod body 1 connects the two clamps, and the distance between the two clamps can be adjusted by adjusting the distance between the hard rod body 1;

[0053] The distance adjustment and locking structure is used to adjust and lock the adjusted positional relationship between the hard rod body 1 and the two clamps. The corresponding operation process is that when the two sections of tissue tube walls driven by the clamps are anastomosed to a suitable suture position, the adjusted positional relationship between the hard rod body 1 and the two clamps is locked by the locking structure.

[0054] The specific implementation of the clamping pliers is that the clamping pliers are tubular clamps, which include a clamp tube; a clamp head 22, which is arranged at the first end of the clamp tube; a moving rod 23, which is arranged in the clamp tube, and the moving rod 23 is arranged in the clamp tube, and the forward and backward movement of the moving rod 23 in the clamp tube drives the opening and closing movement of the clamp arm clamp head 22; and a rotating opening and closing structure, which is arranged at the second end of the clamp tube, and the forward and backward movement of the moving rod 23 in the clamp tube is achieved by rotating the rotating opening and closing structure in different directions. The clamping is maintained by rotating the rotating opening and closing structure to the clamping state and stopping, and the rotating opening and closing structure has the dual functions of adjusting the opening and closing and maintaining the clamping.

[0055] The rotating opening and closing structure includes a structure with a threaded channel section 241 that rotates relative to the clamp tube but does not change its displacement. A threaded section 231 corresponding to the threaded tube section is provided on the corresponding moving rod 23; the threaded section is driven to move forward and backward by the rotation of the threaded tube section. A moving groove 242 is provided inside the clamp tube, and an anti-rotation block 243 that moves in the moving groove 242 is provided on the moving rod 23; this arrangement can ensure that the rotation of the rotating opening and closing structure drives the moving rod 23 to move forward and backward. The rotating opening and closing structure also includes a coupling tube 244 coupled to the clamp tube, an annular coupling groove 245 is provided on the coupling tube 244, and a coupling ring 246 extends from the clamp tube to couple with the coupling groove. The cooperation between the coupling groove and the coupling ring 246 ensures that the rotating opening and closing structure and the clamp tube only rotate relative to each other without relative movement. When in use, the rotating opening and closing structure is rotated to make the threaded section 1 231 move forward and backward, and drive the clamp head 22 to open and close. When initially clamping the tissue tube wall, the clamp body is rotated to clamp and close. When the tissue tube wall is sutured, the clamp body is rotated in the opposite direction to open and separate from the tissue tube wall. The entire process is formed by the clamp head 22.

[0056] refer to Figure 1-2 ; 8-9; 10-11, the forceps head 22 has an arc-shaped structure at both ends, and each forceps head 22 has a certain curvature, which ensures the clamping operation and avoids damage to the tissue tube wall caused by excessive clamping during clamping due to a straight setting.

[0057] In a more specific embodiment, the setting position of the distance adjustment and locking structure is limited. The distance adjustment and locking structure is set in the middle of the clamp. In this way, the balance of the entire instrument can be ensured, or the distance adjustment and locking structure can also be set at the end of the clamp away from the clamp head 22. This setting can ensure that the specific adjustment and locking structure is set outside the body and the length of the entire clamp is the shortest. The position can be rotated according to the thickness from the body surface to the surgical site. When the thickness is thick, a longer clamp tube can be set, half of which is set inside the body and half is set outside the body. The balance is maintained by setting the distance adjustment and locking structure in the middle; when the thickness from the body surface to the surgical site is small, the distance adjustment and locking structure can be set at the end away from the clamp head 22. Because the distance is short, the distance change at the tail end will not be too large, and thus it will not cause too much position change to the clamped tissue tube wall, ensuring surgical safety.

[0058] In a more specific embodiment, the two clamp tubes are respectively a first clamp tube 211 and a second clamp tube 212, the first end of the hard rod body 1 is arranged on the first clamp tube 211, and a channel providing structure is arranged on the second clamp tube 212, the channel providing structure constructs a moving channel for the hard rod body 1 to move, and the distance adjustment and locking structure includes a matching structure 1 arranged on the hard rod body 1 and a matching structure 2 arranged on the side wall of the moving channel; when the matching structure 1 of the hard rod body 1 matches with the matching structure 2, the distance adjustment and locking are achieved. Among them, in the combined state, the hard rod body 1 and the channel providing structure are arranged on the same side of the first clamp tube 211 and the second clamp tube 212, and are placed on the same upper side or lower side in the plane state; this arrangement can ensure that the hard rod body 1 moves in the space where the first clamp tube 211 and the second clamp tube 212 are not located; the teeth 41 and the elastic sheet 42 that can be matched in the matching structure 1 and the matching structure 2 only allow the two clamp tubes to approach each other, and do not allow reverse movement, or the matching structure 1 is a threaded section 2 51, and the matching structure 2 is a structure with a threaded hole section 2 that can rotate without moving, and the distance is adjusted by rotation, and it can be locked after stopping. The above only discloses two implementation methods of the matching structure 1 and the matching structure 2, and other implementation methods can also be selected.

[0059] For more specific implementations, refer to Figure 4-13; The first end of the hard rod body 1 is rotatably arranged on the outside of the first clamp tube 211, and the combination and separation of the two clamps are achieved by rotating the angle of the hard rod body 1. The hard rod body 1 is combined with the distance adjustment and locking structure on the second clamp tube 212, and the distance is adjusted and locked after the combination. Before the combination, each clamp is operated separately; when in use, the two clamps are operated separately, and after the clamps are respectively put into the surgical position, the rotating opening and closing structure is rotated so that the clamps are clamped on the end of the tissue tube wall; after the two clamps are set, the angle of the hard rod body 1 is rotated so that the hard rod body 1 is combined with the distance adjustment and locking structure, and the distance is adjusted after the combination. When the matching structure 1 and the matching structure 2 are matched, the positional relationship of the two clamp tubes is locked after the adjustment reaches the anastomotic position; after the suturing operation is completed, the clamping state of the clamp is released by rotating the rotating opening and closing structure in the opposite direction, and the two clamps are withdrawn from the surgical site at the same time while maintaining the combined state.

[0060] A more preferred embodiment is that when the first clamp tube 211 and the second clamp tube 212 are in a combined state, a matching structure is arranged on a hard rod body 1 near the first clamp tube 211 and in the outer area of ​​the first clamp tube 211; this arrangement can ensure adjustment and locking in the final close state without having to lock at a long distance.

[0061] A more preferred embodiment is to further provide a guide section for connecting the matching structure 1, the guide section is used to realize the combination of the two clamp tubes when the interval distance is large, and to realize the guiding effect of bringing the two clamp tubes closer to each other in the combined state.

[0062] A more preferred embodiment is to refer to Figure 1 and Figure 8 When the first clamp tube 211 and the second clamp tube 212 are combined, the two clamp tubes are parallel and the front and rear ends are in the same position. The symmetry plane of each clamp head 22 is consistent with the symmetry plane of each clamp tube. This arrangement can ensure that when the combination is performed and then moved in parallel, the clamped tissue tube walls can be effectively anastomosed together to ensure the suturing operation.

[0063] A more preferred embodiment is that a setting platform 3 is provided on the two clamp tubes, and it is easier to set up various structures on the platform. Furthermore, a rectangular block is provided on the two clamp tubes, and the position of the rectangular block and the clamp tubes is fixed. The setting platform 3 is a surface of the rectangular block.

[0064] A more preferred embodiment is to set up two distance adjustment and locking structures, or one distance adjustment and locking structure and a guide structure; the guide structure includes a guide hard rod 54 rotatably set on one clamp tube and an openable channel providing structure 2 set on another clamp tube; open the channel, guide the hard rod 54 to enter the channel of the channel providing structure, and close the channel.

[0065] Example 2

[0066] When the distance adjustment and locking structure selects a specific way in which the teeth 41 and the elastic sheet 42 cooperate with each other, the specific structural setting and selection under this way are set.

[0067] Specifically, refer to Figure 1-10 The matching structure 1 is a tooth 41 arranged on the side of the hard rod 1, and the channel providing structure is two protruding columns 43 extending from the second clamp tube 212. The space between the protruding columns 43 is the moving channel, and an elastic sheet 42 matching with the tooth 41 is arranged on the inner wall of one of the protruding columns 43; the hard rod 1 rotates from the top to enter the moving channel, and a channel blocking structure is also arranged on the protruding column 43, which is used to close the channel after the hard rod 1 falls into the moving channel. Through this arrangement, it is very simple and convenient to set the hard rod 1 in the moving channel to achieve assembly.

[0068] A more preferred implementation is to provide a rotating part on the clamp tube, combine the hard rod body 1 with the rotating part, and realize the rotation of the hard rod body 1; specifically, a protruding column 44 can be extended from the clamp tube, and there is a space between the protruding columns 44 to accommodate two hard rod bodies 1, and an axial hole 441 is provided on the protruding column 44, and a rotating shaft 442 connected to the hard rod body 1 is provided, and the rotating shaft 442 is provided in the axial hole 441 to realize the rotation of the hard rod body 1.

[0069] In a more preferred embodiment, the channel blocking structure is a rotatable blocking piece 45, and the blocking piece 45 is in close contact with the protruding column; this arrangement can facilitate the opening and closing of the mobile channel; and the close contact can prevent the blocking piece 45 from rotating on its own.

[0070] A more preferred implementation is to set up two sets of adjustment and locking structures, each clamp tube is provided with a rotating part and a channel providing structure and a corresponding matching structure 2, and other structures are set accordingly; through this arrangement, the positions of the two adjustment and locking structures can be ensured to be different, which can better ensure the balance of force and maintain the stability of the entire structure. In addition, the purpose of setting up two sets of adjustment and locking structures is to maintain the stability of the motion state, avoid deformation of the entire structure caused by unbalanced force, and reduce the size of the hard rod body 1 increased to maintain stability, so as to maintain two smaller-sized hard rod bodies 1 to maintain the stability of the structural operation.

[0071] A more preferred embodiment is to provide an elastic maintaining structure, specifically, a protruding column three 47 extends from one clamp tube, a spring 46 is provided on the protruding column three 47, and a protruding column four 48 extends from the other clamp tube to block the spring 46. The provision of the spring 46 can ensure that after the locking position relationship, the entire structure will not shrink in distance by itself or by accident, thereby maintaining the anastomotic state required for stable suturing.

[0072] Example 3

[0073] When the distance adjustment and locking structure selects the threaded section 2 51 and the rotation adjustment structure 52 with the threaded channel section 2, refer to Figure 11-13 ; In the specific mode, the specific structural setting and selection under this mode are set. The first matching structure is the second threaded section 51, and the second matching structure includes a rotation adjustment structure 52 with a second threaded channel section fixedly set on the second clamp tube 212; the second matching structure also includes a fixed structure 53 for fixing the rotation adjustment structure 52 to move but allowing it to rotate. The fixed structure 53 is set on both sides of the rotation adjustment structure 52, and a rotation groove is set therein. Rotation rings adapted to the rotation groove are set on both sides of the rotation adjustment structure 52.

[0074] An extension section 11 is provided on the threaded section 2 51. When the hard rod body 1 is rotated to the combined state, the central axis of the hard rod body 1 is consistent with the central axis of the rotation adjustment structure 52, and the hard rod body 1 is not in contact with the rotation adjustment structure 52; the two clamp tubes are gradually brought closer to each other, and the extension section 11 preferentially enters the threaded channel section 2; after the threaded section 1 231 contacts the threaded hole section 2, the rotation adjustment structure 52 is rotated, so that the two clamp tubes continue to approach each other, and the rotation is stopped after reaching the matching position and the positional relationship of the two clamp tubes is locked at the same time.

[0075] A more preferred embodiment is to provide a guiding structure, specifically including: providing a guiding hard rod 54, the guiding hard rod 54 is provided in parallel with the hard rod body 1, and the guiding hard rod 54 realizes the combination and separation of the two clamp tubes by rotating relative to the clamp tube; a rotating part of the guiding hard rod 54 is provided on one clamp tube; the rotating part of the hard rod body 1 and the rotating part of the guiding hard rod 54 are provided on different clamp tubes.

[0076] A more preferred embodiment is that two protruding columns 55 are extended from the other clamp tube without the rotating part of the guide hard rod 54; the protruding columns 55 are between the moving passages of the guide hard rod 54; a rotatable blocking piece 45 is arranged on the protruding columns 55; in this way, the guide hard rod 54 is confined in the closed moving passage constructed by the protruding columns 55 and the blocking piece 45. The arrangement of the guide hard rod 54 can ensure the stability of the operation of the entire device, ensure the stability of the position of the two relatively thin rods, and through the combination and separation of the rotation mode, it can still ensure the separate operation of each clamping forceps when clamping.

[0077] The technical solutions in the embodiments of the present invention are clearly and completely described above through specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A device capable of end-to-end precise anastomosis of tissue walls, characterized in that: These include, Two clamping pliers, each clamping plier is provided with a structure for maintaining the clamping state after clamping; Used to clamp and fix the two ends of the tissue tube wall to be sutured in a clamping state through the clamping maintenance structure; The hard rod connects the two clamps, and the distance between the two clamps can be adjusted by adjusting the distance between the hard rod; The distance adjustment and locking structure is used to adjust and lock the adjusted positional relationship between the hard rod body and the two clamping pliers; The clamping forceps are tubular clamps, which include: Clamp pipe; A clamping tongs head is arranged at the first end of the clamp tube; A moving rod is arranged in the clamp tube. The moving rod is arranged in the clamp tube. The forward and backward movement of the moving rod in the clamp tube drives the opening and closing of the clamp arm and the clamp head. The rotary opening and closing structure is arranged at the second end of the clamp tube, and the moving rod can be moved forward and backward in the clamp tube by rotating the rotary opening and closing structure in different directions.

2. The anastomotic device according to claim 1, characterized in that: The rotary opening and closing structure includes a structure with a threaded channel section that rotates relative to the clamp pipe but does not change its displacement. A threaded section corresponding to the threaded pipe section is arranged on the corresponding moving rod; the threaded section moves forward and backward by the rotation of the threaded pipe section. A moving groove is arranged inside the clamp pipe, and an anti-rotation block moving in the moving groove is arranged on the moving rod; The rotating opening and closing structure also includes a coupling tube coupled to the clamp tube, an annular coupling groove is arranged on the coupling tube, and a coupling ring coupled to the coupling groove extends from the clamp tube. The cooperation between the coupling groove and the coupling ring ensures that the rotating opening and closing structure and the clamp tube only rotate relative to each other but do not move relative to each other.

3. The anastomotic device according to claim 1, characterized in that: The two clamp tubes are respectively the first clamp tube and the second clamp tube, the first end of the hard rod body is arranged on the first clamp tube, and the second clamp tube is provided with a channel providing structure, the channel providing structure constructs a moving channel for the hard rod body to move, and the distance adjustment and locking structure includes a matching structure 1 arranged on the hard rod body and a matching structure 2 arranged on the side wall of the moving channel; when the matching structure 1 of the hard rod body cooperates with the matching structure 2, the distance adjustment and locking are realized; in the combined state, the hard rod body and the channel providing structure are arranged on the same side of the first clamp tube and the second clamp tube, and are placed on the same upper side or lower side in a plane state.

4. The anastomotic device according to claim 3, characterized in that: The first end of the hard rod body is rotatably arranged on the outside of the first clamp tube. The combination and separation of the two clamps are achieved by rotating the angle of the hard rod body. The hard rod body is combined with the distance adjustment and locking structure on the second clamp tube. After the combination, the distance is adjusted and locked. Before the combination, each clamp is operated separately.

5. The anastomotic device according to claim 4, characterized in that: When the first clamp tube and the second clamp tube are in a combined state, the matching structure 1 is arranged on the hard rod body near the first clamp tube and in the outer area of ​​the first clamp tube; A guide section of the connecting matching structure 1 is provided to guide the two clamp pipes to approach each other in the combined state.

6. The anastomotic device according to claim 4, characterized in that: When the first clamp tube and the second clamp tube are in a combined state, the two clamp tubes are parallel and the front and rear ends are in the same position, and the opening and closing paths of the two clamp heads are parallel; A setting platform is arranged on the two clamp pipes, a rectangular block is arranged on the two clamp pipes, the rectangular block and the clamp pipes are fixed in position, and the setting platform is a surface of the rectangular block.

7. The anastomotic device according to claim 1, characterized in that: Two distance adjustment and locking structures are provided, or one distance adjustment and locking structure and one guide structure are provided; the guide structure includes a guide hard rod rotatably provided on one clamp tube and an openable channel providing structure 2 provided on the other clamp tube; Open the channel, guide the hard rod into the channel of the channel providing structure, and close the channel.

8. The anastomotic device according to claim 4, characterized in that: The matching structure 1 is a section of teeth arranged on the side of the hard rod body, and the channel providing structure is two protruding columns 1 extending from the second clamp tube. The space between the protruding columns is the moving channel, and an elastic sheet matching with the teeth is arranged on the inner side wall of one of the protruding columns 1; the hard rod body rotates from the top to enter the moving channel, and a channel blocking structure is also arranged on the protruding column 1, which is used to close the channel after the hard rod body falls into the moving channel; A rotating part is arranged on the first clamp tube, and the hard rod body is combined with the rotating part to realize the rotation of the hard rod body; specifically, two protruding columns are extended from the clamp tube, and a space for accommodating the hard rod body is provided between the two protruding columns, and an axial hole is arranged on the two protruding columns, and a rotating shaft connected to the hard rod body is arranged, and the rotating shaft is arranged in the axial hole to realize the rotation of the hard rod body; The channel blocking structure is a rotatable blocking piece, which is in close contact with the protruding column; A protruding column three is extended from one of the clamp tubes, a spring is arranged on the protruding column three, and a protruding column four is extended from the other clamp tube for blocking the spring.

9. The anastomotic device according to claim 4, characterized in that: The first matching structure is the second threaded section, and the second matching structure includes a rotation adjustment structure with a second threaded channel section fixedly arranged on the second clamp pipe; the second matching structure also includes a fixing structure for fixing the rotation adjustment structure to move but allowing it to rotate, the fixing structure is arranged on both sides of the rotation adjustment structure, a rotation groove is arranged therein, and a rotation ring adapted to the rotation groove is arranged on both sides of the rotation adjustment structure; An extension section is arranged on the second threaded section. When the hard rod body rotates to the combined state, the central axis of the hard rod body is consistent with the central axis of the rotation adjustment structure, and the hard rod body and the rotation adjustment structure are not in contact. The two clamp pipes are gradually brought closer to each other, and the extension section preferentially enters the second threaded hole section. When the first threaded section contacts the second threaded hole section, the rotation adjustment structure is rotated so that the two clamp pipes continue to approach each other. A guiding hard rod is provided, which is arranged parallel to the hard rod body, and the guiding hard rod realizes the combination and separation of the two clamp tubes by rotating relative to the clamp tube; a rotating part of the guiding hard rod is provided on one clamp tube; the rotating part of the hard rod body and the rotating part of the guiding hard rod are provided on different clamp tubes; two protruding columns five are extended from the other clamp tube where the guiding hard rod rotating part is not provided; a moving channel for the guiding hard rod is provided between the protruding columns five; a rotatable blocking piece is provided on the protruding column five.

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