CN114795353A - High-efficient type operation anastomat for vascular surgery - Google Patents

Abstract

The invention relates to the technical field of vascular surgical instruments, in particular to a high-efficiency surgical anastomat for an extravascular department. Comprises a fixed column, a clamp body assembly and an anastomosis structure; a telescopic blocking piece is arranged on the fixing column; the first clamp body comprises two mechanical shear arms; the mechanical shearing arm comprises an anastomosis arm, a connecting arm and a driving arm; the two connecting arms are connected through the rotating piece and sleeved on the fixed column; the anastomosis arm is connected with the anastomosis structure through a connecting structure; the guide structure is configured into two anastomosis rings which are arranged up and down and can be aligned accurately; the fastening structure is configured in such a way that when the first forceps body moves to a preset position, the blocking piece completes locking of the first forceps body, and the driving arm of the first forceps body moves reversely, so that the anastomosis nail is extruded with the side wall of the fixing hole, and a reverse hook locking structure is formed between the anastomosis nail and the fixing hole. The blood vessel fixing device is convenient for clamping blood vessels on two sides and performing flanging and stapling operation, time and labor are saved, the operation is convenient and fast, and the anastomosis efficiency and the buckling effect of the blood vessel surgical operation are improved through the fixing structure.

Description

High-efficient type operation anastomat for vascular surgery

Technical Field

The invention relates to the technical field of vascular surgical instruments, in particular to a high-efficiency surgical anastomat for an extravascular department.

Background

The anastomat is the first stapler in the world. Generally, the anastomat is divided into a disposable anastomat or a multi-use anastomat, an imported anastomat or a domestic anastomat. The anastomat is equipment used for replacing traditional manual suturing in medicine, is reliable in quality due to development of modern science and technology and has the advantages of being fast in suturing, simple and convenient to operate, few in side effects and operation complications and the like. The prior art vascular anastomat still has the following technical problems:

1. most of the prior art surgical anastomosis devices for vascular surgery adopt the traditional method, namely a needle and thread suture anastomosis method, but the method has the problems of complex and time-consuming operation and large damage to the intima of blood vessels;

2. in the operation process of the operation anastomosis equipment for vascular surgery in the prior art, the diameter of a blood vessel still needs to be measured through a precision instrument, then the blood vessel is penetrated into a hole of an anastomat through auxiliary instruments such as tweezers, and then nails are used for nailing tightly, so that the operation is time-consuming and labor-consuming, is very difficult to thread a needle and lead, and the operation efficiency is seriously reduced;

3. the blood vessel anastomat of prior art is at the operation in-process, and when anastomat both sides tractive vascular wall, the effect of lock is not good, moreover, causes the anastomotic effect of blood vessel poor easily, and then appears the anastomotic phenomenon that appears gap or failure of blood vessel, has great potential safety hazard.

Disclosure of Invention

In order to solve the technical problems, the invention provides the efficient operation anastomat for the vascular surgery, through the split type structural design, the vessels on two sides are conveniently pulled and the flanging and nailing operations are conveniently carried out, time and labor are saved, and then the anastomosis nails are triggered to form the inverted hook structure through the fastening structure under the action of external force extrusion, so that the anastomosis efficiency and the buckling effect of the vascular surgery are improved.

The invention relates to a high-efficiency surgical anastomat for an extravascular department, which adopts the following technical scheme:

an efficient surgical anastomat for an extravascular department comprises a fixing column, a clamp body assembly and an anastomosis structure;

the fixing columns are distributed in the front and back direction, symmetrically distributed sliding chutes are further formed in the left side and the right side of each fixing column, and telescopic blocking pieces are further arranged on the fixing columns;

the clamp body assembly comprises a first clamp body and a second clamp body which have the same structure; the first clamp body is slidably sleeved on the fixed column; the second clamp body is fixedly sleeved on the fixing column; the first clamp body comprises two mechanical shearing arms which have the same structure and are symmetrically arranged; the mechanical shearing arm also comprises an anastomosis arm, a connecting arm and a driving arm; one end of the connecting arm is connected with the anastomosis arm, and the other end of the connecting arm is connected with the driving arm; the driving arm is used for the operation of a main doctor; the two connecting arms are connected through the rotating piece and sleeved on the fixed column, so that the two connecting arms can rotate relatively and cannot move relatively; the anastomosis arm is connected with the anastomosis structure through a connecting structure;

the anastomosis structure comprises an anastomosis ring, an anastomosis nail, a fixing hole, a guide structure and a fastening structure; the anastomosis ring is of a semicircular structure, and the two anastomosis rings which are arranged in the anastomosis arm up and down are of a closed circular structure; the anastomosis nails are uniformly distributed in an annular shape and are arranged on the side wall of the anastomosis ring, and each anastomosis nail comprises an anastomosis body and a needle part; the anastomotic body is vertically arranged on the side wall of the anastomotic ring, and the needle part is conical and is arranged at the front end of the anastomotic body; the fixing holes are uniformly distributed in an annular shape and penetrate through the anastomosis ring; the anastomosis nails at one side of the anastomosis ring are kept to be matched and installed with the fixing holes at one side of the anastomosis ring which is arranged oppositely; the guide structure is configured to enable the two anastomosis rings arranged up and down to be accurately aligned;

the fastening structure is configured in such a way that when the first forceps body moves to a preset position, the blocking piece completes locking of the first forceps body, and the driving arm of the first forceps body moves reversely, so that the anastomosis nail is extruded with the side wall of the fixing hole, and a reverse hook locking structure is formed between the anastomosis nail and the fixing hole.

As a preferred technical scheme: the fastening structure is arranged on the anastomosis nail and comprises a swing rod, a rotating shaft, an elastic pad, a trigger block and an elastic piece; the anastomosis nail is provided with a groove, and the rotating shaft is vertically arranged in the groove; the swing rod is rotatably sleeved on the rotating shaft; the elastic cushion is arranged in the groove and positioned on the inner side of the swing rod; the elastic piece is arranged below the groove; the trigger block is connected with one end of the elastic piece; in an initial state, the swing rod is vertical and is in friction contact with the trigger block, the elastic pad is compressed at the moment, and the elastic piece is in the original length.

Further preferred technical solution: when the anastomosis nail and the fixing hole are extruded and deformed, the trigger block is extruded to move inwards, and the unlocking of the swing rod is ejected out by the elastic pad to form a barb structure.

Further preferred technical solution: the fastening structure is arranged in two symmetrical anastomosis nails at the uppermost part and the lowermost part of the anastomosis ring at one side.

The preferable technical scheme is as follows: the guide structure comprises a guide block and a guide groove; the two guide blocks are respectively arranged at two ends of the anastomosis ring at one side; the two guide grooves are respectively arranged at two ends of the anastomosis ring at the other side of the same group of forceps bodies; the guide block is matched with the guide groove for installation.

As a preferred technical scheme: the connecting structure comprises a clamping groove, a clamping block and a positioning groove; the clamping groove is arc-shaped and is arranged on the anastomosis arm; the clamping block is arranged in the clamping groove; the positioning groove is arranged on the anastomosis ring; the anastomosis ring and the clamping groove are in interference fit; the positioning groove is matched with the clamping block to accurately position the anastomosis nails on the anastomosis rings on the front side and the rear side and the corresponding fixing holes.

As a preferred technical scheme: the blocking piece comprises a blocking plate, a blocking rod and a spring; the fixed column is also provided with an installation groove, and the center of the bottom end of the installation groove is also provided with a moving groove; the clamping plate is installed in the installation groove in a matched mode and can move up and down; one side surface of the clamping plate facing the first clamp body is an inclined surface; the clamping rod is arranged at the lower end of the clamping plate and is installed in the moving groove in a matching mode; the spring sleeve is arranged on the clamping rod.

As a preferred technical scheme: the rotating piece comprises a ring sleeve, a key groove and a short key; the two ring sleeves are respectively arranged on the two connecting arms; the key groove is annular and is arranged on one ring sleeve side wall; the short keys are L-shaped and are uniformly distributed in an annular mode, and the short keys can be slidably arranged in the key grooves.

Further preferred technical solution: two symmetrically arranged fixed blocks are further arranged on the inner side wall of one ring sleeve of the same group of pliers bodies, and the fixed blocks are installed in a matched mode with the sliding grooves; the first clamp body moves along the sliding groove through the matching of the ring sleeve and the fixed block; the ring sleeve of the second clamp body and the fixed column are kept rotatable and immovable relative to each other.

Further preferred technical solution: end covers are arranged at two ends of the fixing column.

The invention has the beneficial effects that: the device is designed into an up-down split structure by arranging the anastomosis rings, so that the tedious and difficult operation of 'perforating to draw blood vessels' during vascular anastomosis is avoided, an operation doctor directly presses the two anastomosis rings on the upper parts by the driving arms to lift the two anastomosis rings on the upper parts, so that the blood vessels on the two sides are conveniently drawn to the centers of the anastomosis rings, the driving arms are restored to the initial state, the fixation of the blood vessels on the two sides is completed, then a doctor of the doctor carries out flanging and nailing operations, time and labor are saved, and the operation work efficiency of vascular surgery on vascular anastomosis is greatly improved; further moving the first clamp body to gradually approach the second clamp body to gradually form vascular anastomosis fastening and form position positioning under the action of the blocking piece; and further through setting up the structure under the effect of external force extrusion actuating arm, make the actuating arm, fixed column and anastomosis ring, form lever structure, and increase the effect of setting up of anastomosis nail and fixed orifices on the anastomosis ring once more, the anastomosis nail is stainless steel, the anastomosis ring is made for the polylactic acid material, it is soluble, and the finished product has certain flexibility, make the anastomosis ring take place local deformation, make the structure of setting up of anastomosis nail trigger the unblock, the anastomosis nail is popped out and extrudes the extrusion fixed orifices inner wall and form the overhead kick structure, the lock effect of anastomosis ring of both sides has been improved greatly, and then also improved the anastomotic effect of vascular surgery, the security is improved, the recovery health after patient's blood vessel is coincide has also been accelerated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a perspective view of an anastomosis structure of the present invention;

FIG. 3 is a structural view of a second jaw body of the present invention;

FIG. 4 is a perspective view of a mechanical scissor arm of the present invention;

FIG. 5 is a perspective view of the fixing post of the present invention;

FIG. 6 is a diagram illustrating the first caliper body of the present invention moved to a predetermined position;

figure 7 is an initial state view of the fastening arrangement of the present invention;

figure 8 is a state diagram of the triggering of the fastening arrangement of the present invention;

figure 9 is a barbed state view of the fastening arrangement of the present invention;

FIG. 10 is a partial cross-sectional view of a rotating member of the present invention;

fig. 11 is a schematic structural diagram of a blocking member according to the present invention.

In the figure: 1. fixing a column; 11. a chute; 12. a stopper; 13. a fixed block; 14. an end cap; 2. a caliper body assembly; 21. a first caliper body; 22. a second caliper body; 23. a mechanical shear arm; 24. an anastomosis arm; 25. a connecting arm; 26. a drive arm; 27. a rotating member; 28. a connecting structure; 3. an anastomosis structure; 31. anastomosing the ring; 32. anastomosis nails; 33. a fixing hole; 34. a guide structure; 35. a fastening structure; 36. an anastomosis body; 37. a needle portion; 41. a swing rod; 42. a rotating shaft; 43. an elastic pad; 44. a trigger block; 45. an elastic member; 46. a groove; 51. a card slot; 52. a clamping block; 53. positioning a groove; 61. clamping a plate; 62. a clamping rod; 63. a spring; 64. mounting grooves; 65. a moving groove; 71. sleeving a ring; 72. a keyway; 73. a short bond; 81. a guide block; 82. a guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: as shown in fig. 1-11:

an efficient surgical anastomat for an extravascular department comprises a fixingcolumn 1, aclamp body assembly 2 and ananastomosis structure 3. The fixingcolumn 1 is distributed front and back, symmetrically distributed slidinggrooves 11 are further formed in the left side and the right side of the fixingcolumn 1, and atelescopic blocking piece 12 is further arranged on the fixingcolumn 1. So set up, be convenient for first pincers body remove, the lock operation, labour saving and time saving.

In this embodiment, as shown in fig. 11, the blockingmembers 12 are two sets that are disposed vertically symmetrically. Each set of the catchingmembers 12 includes a catchingplate 61, a catchinglever 62, and aspring 63. Still be equipped with mountinggroove 64 on the fixedcolumn 1, mountinggroove 64 bottom center department still is equipped with shiftingchute 65. The chuckingplate 61 is fitted in the mountinggroove 64 and kept movable up and down. One side surface of the clampingplate 61 facing thefirst caliper body 21 is an inclined surface. So as to press the clampingplate 61 until thering sleeve 71 of thefirst caliper body 21 completely passes through the clampingplate 61.

The clampingrod 62 is arranged at the lower end of the clampingplate 61 and is matched and installed in the movinggroove 65. Thespring 63 is sleeved on the clampingrod 62. So set up, be convenient for whenfirst pincers body 21 is whole to be removed along fixedcolumn 1 to the front side, extrudecardboard 61 forcardboard 61 andkelly 62 move as integrative inside shrink, and thefirst pincers body 21 of being convenient for passes through, thencardboard 61 rises once more and forms the card fender, is convenient for improve vascular anastomat's lock effect.

Thecaliper body assembly 2 comprises afirst caliper body 21 and asecond caliper body 22 which have the same structure. Thefirst caliper body 21 and thesecond caliper body 22 are both movable as a single unit. And one of themechanical scissor arms 23 can rotate to drive theanastomosis arm 24 to ascend and descend. Thefirst clamp body 21 is slidably sleeved on the fixedcolumn 1; thesecond clamp body 22 is fixedly sleeved on the fixingcolumn 1. The design structure that one side is fixed and the other side is moved is formed, so that the two sides of the anastomotic ring are close to and pulled after the blood vessel is tightly nailed, and the anastomotic effect is improved.

Thefirst caliper body 21 includes two symmetrically disposedmechanical shear arms 23 with the same structure, and themechanical shear arms 23 are similar to a scissors structure. Themechanical shear arm 23 further comprises ananastomosis arm 24, a connectingarm 25 and a drivingarm 26 which are sequentially arranged from left to right. The right end of the drivingarm 26 is further provided with an operating handle for facilitating the driving operation of the main physician. The length from the rightmost end of the drivingarm 26 to the fixedcolumn 1 is far longer than the length from the leftmost end of theanastomosis arm 24 to the fixedcolumn 1, so that external force is applied through a subsequent lever structure, and theanastomosis nail 32 is triggered to be unlocked to form a barb structure.

One end of the connectingarm 25 is connected with theanastomosis arm 24, and the other end is connected with the drivingarm 26; themechanical shear arm 23 is an integrally formed structure. Themechanical shearing arm 23 takes the fixedcolumn 1 as a fulcrum, and one of themechanical shearing arms 23 in the same group can rotate around the fixedcolumn 1; the othermechanical scissor arm 23 is not rotatable and the upper holdinganastomosis arm 24 is movable up and down. In the actual operation process, the lower anastomosis arm and the lower anastomosis ring are taken as a whole, the downward space is small, and the upper anastomosis arm and the upper anastomosis ring have enough lifting space, so that the blood vessels on two sides can be clamped and positioned conveniently.

In this embodiment, the connectingarms 25 of the twomechanical scissor arms 23 are connected by the rotatingmember 27 and sleeved on the fixedpost 1, so that the two connectingarms 25 in the same forceps body can rotate relatively and cannot move relatively. Therotatable member 27 includes acollar 71, akey slot 72 and ashort key 73. As shown in fig. 10, two of theloop sleeves 71 are respectively disposed on two of the connectingarms 25. Thering sleeve 71 is sleeved on the fixingcolumn 1, and a gap is reserved between the ring sleeve and the fixing column. Thekey groove 72 is annular and is arranged on the side wall of onering sleeve 71; theshort keys 73 are L-shaped and are uniformly distributed in a ring shape, theshort keys 73 are arranged on the side wall of theother ring sleeve 71, and theshort keys 73 are arranged opposite to thekey grooves 72. Theshort key 73 is slidably disposed in thekey groove 72. In this embodiment, theshort keys 73 are three and evenly distributed in an annular shape, and theshort keys 73 are arranged in an L-shaped structure, so that not only is the connection and support effect between the two ring sleeves ensured, but also the two ring sleeves are in surface contact with each other, the stability of the first caliper body moving as a whole is improved, and the effect of relative rotation of the two ring sleeves is realized.

In this embodiment, two fixingblocks 13 symmetrically arranged from left to right are further disposed on the inner side wall of one of thering sleeves 71 of the same pair of pliers, and the fixing blocks 13 are mounted in a matching manner with the slidinggrooves 11. Thefirst caliper body 21 moves along the slidinggroove 11 through the cooperation of thering sleeve 71 and the fixedblock 13. Thering sleeve 71 of thesecond clamp body 22 and the fixedcolumn 1 are kept rotatable and immovable relative to each other. According to the arrangement, a structure with one movable part and one fixed part is formed, so that the movement convenience and the guiding accuracy of the device for anastomosis in the operation process are improved. Meanwhile, deviation of the anastomotic ring after clamping when moving is prevented, and then the phenomenon that the malposition blood vessel is twisted or torn is avoided. End covers 14 are arranged at two ends of the fixingcolumn 1. With such an arrangement, thefirst clamp body 21 is prevented from moving and dislocating.

In this embodiment, theanastomosis arm 24 is connected to theanastomosis structure 3 via a connectingstructure 28. As shown in fig. 3. The connectingstructure 28 includes aslot 51, alatch 52 and apositioning slot 53. The clampinggroove 51 is arc-shaped and is arranged on theanastomosis arm 24; thefixture block 52 is arranged in thefixture groove 51; thepositioning slot 53 is arranged on theanastomosis ring 31; and keeps theanastomosis ring 31 in interference fit with the clampingslot 51. So set up, be convenient for use the anastomotic ring of different diameters size at the vascular surgery operation in-process of different grade type, and then clamp the structure through convenient extrusion, improved the agility of anastomotic ring installation. Thepositioning grooves 53 are matched with the fixture blocks 52, so that thestaples 32 on the front and rear anastomosis rings 31 and the corresponding fixing holes 33 are accurately positioned. Since the structures and positions of the front andrear anastomosis arms 24 are the same, the matching action of the fixture blocks 52 and thepositioning slots 53 ensures the accuracy of the corresponding mounting positions of the anastomosis rings 31 on both sides, i.e. the anastomosis nails 32 of one side of theanastomosis ring 31 correspond to the fixing holes 33 of the other side of theanastomosis ring 31.

Theanastomosis structure 3 comprisesanastomosis ring 31,staples 32,fixation apertures 33,guide structure 34 andfastening structure 35. Theanastomosis ring 31 is a semi-circular ring structure, and two anastomosis rings 31 arranged up and down in theanastomosis arm 24 are closed circular structures. Thestaples 32 are uniformly distributed in an annular shape and are disposed on the side wall of theanastomosis ring 31. Each of thestaples 32 includes aanastomotic body 36 and aneedle portion 37; theanastomosis body 36 is vertically arranged on the side wall of theanastomosis ring 31, theneedle portion 37 is conical and is arranged at the front end of theanastomosis body 36, in this embodiment, theneedle portion 37 is in a conical or triangular pyramid structure, so that the blood vessel can be fixed by theanastomosis nail 32 after being flanged.

The fixing holes 33 are uniformly distributed in a ring shape and penetrate through theanastomosis ring 31;staples 32 and fixation holes 33 on asingle anastomosis ring 31 are spaced apart from one another so as not to interfere with one another. And keeps theanastomosis nail 32 of oneside anastomosis ring 31 and the fixinghole 33 of the oppositeside anastomosis ring 31 in matching installation; when the anastomosis rings 31 at the front side and the rear side are close to each other and in a buckling state, the anastomosis nails 32 and the fixing holes 33 are installed in a matching manner, so that the blood vessel anastomosis effect is improved, and theguide structure 34 is configured in such a way that the two anastomosis rings 31 arranged up and down can be accurately aligned when the blood vessel is clamped.

In this embodiment, theguide structure 34 includes aguide block 81 and aguide groove 82; the two guide blocks 81 are respectively arranged at two ends of theanastomosis ring 31 at one side; the twoguide grooves 82 are respectively arranged at two ends of theanastomosis ring 31 at the other side of the same group of forceps bodies; theguide block 81 is installed to match with theguide groove 82. So set up, be convenient for realize with the pincers body of group, accurate counterpoint is realized to two anastomotic rings that distribute from top to bottom to the blood vessel that needs the block, the reinforcing is set up the effect.

Thefastening structure 35 is configured such that when thefirst forceps body 21 is moved to the predetermined position, the blockingmember 12 completes the locking of thefirst forceps body 21, and the drivingarm 26, the fixingpost 1 and theanastomosis ring 31 form a lever structure by moving the drivingarm 26 of thefirst forceps body 21 in the opposite direction. That is, the two drivingarms 26 are pulled outwards, so that the twoanastomotic rings 31 on the two sides are squeezed and closer. Theanastomosis nail 32 and the side wall of the fixinghole 33 are extruded, the triggering and unlocking of theanastomosis nail 32 are completed, a reverse hook locking structure is formed between theanastomosis nail 32 and the fixing hole, and the anastomosis effect of the corresponding anastomosis rings 31 on the blood vessel on the front side and the rear side is improved.

In the present embodiment, thefastening structure 35 is disposed on thestaple 32 and includes aswing link 41, a rotatingshaft 42, anelastic pad 43, atrigger block 44, and anelastic member 45. The staple 32 is provided with agroove 46, and therotating shaft 42 is vertically arranged in thegroove 46; theswing rod 41 is rotatably sleeved on therotating shaft 42, and the lower end of the swing rod is of a structure with a pointed end and a corner cut; theelastic pad 43 is arranged in thegroove 46 and is positioned on the inner side of theswing rod 41; theelastic piece 45 is arranged below thegroove 46; thetrigger block 44 is connected with one end of theelastic element 45 and can move; theelastic member 45 is a compression spring. A stop table for preventing the dislocation of the trigger block is arranged below thegroove 46, in an initial state, theswing rod 41 is vertical and is in frictional contact with thetrigger block 44, friction surfaces are arranged between the swing rod and the trigger block, sufficient friction force is provided, theelastic pad 43 is compressed at the moment, and theelastic piece 45 is in the original length. With the arrangement, the integral flatness of theinitial anastomosis nail 32 is ensured when the initial anastomosis nail is not subjected to extrusion force. Theanastomosis ring 31 can conveniently clamp the blood vessel and then perform blood vessel flanging fixing operation.

In this embodiment, theanastomosis ring 31 has a certain flexibility and can be compressed when thestaples 32 and the fixing holes 33 are continuously close to each other and are compressed and deformed. Thetrigger block 44 is pressed inward by the deformed anastomotic ring at the fixinghole 33, and then theswing link 41 is not in contact with thetrigger block 44, i.e., there is no frictional resistance. Therefore, the unlocking of theswing rod 41 is pushed out by theelastic pad 43, and the side wall of the fixinghole 33 of theanastomosis ring 31 is actually pressed, namely, an inverted hook structure is formed, so that the fastening effect of the anastomosis rings 31 on the two sides is further improved, and the fastening effect of anastomosis on blood vessels is further improved. Saidfastening structure 35 is arranged in the two saidstaples 32 uppermost and lowermost and symmetrical to one of said anastomosis rings 31. The structure which is symmetrically fastened up and down is formed, and the balance of fastening force is ensured.

The working process is as follows:

in an initial state, as shown in fig. 7, theswing rod 41 is vertically located in thegroove 46 and is in frictional contact with thetrigger block 44 below, friction surfaces are formed between the swing rod and the trigger block, sufficient friction force exists, theelastic pad 43 is compressed at the moment, theelastic piece 45 is in an original length and is in a balanced state, and theanastomosis nail 31 serves as a flat nail and facilitates flanging fixation of blood vessels. At the moment, the upper and lower anastomotic rings in the same forceps body are in a closed state. At this time, thefirst caliper body 21 and thesecond caliper body 22 are in a separated state.

In the initial state, the rotatingmember 27 ensures the connection and support effect between the tworing sleeves 71 in the two pliers bodies of the same group, and the tworing sleeves 71 keep surface contact, so that the stability of the movement of thefirst pliers body 21 as a whole is improved, and the effect of relative rotation of the tworing sleeves 71 in the pliers bodies of the same group is realized. And according to the requirements of different types of operations of vascular surgery, selecting proper anastomosis rings 31, and respectively clamping and embedding the anastomosis rings 31 on theanastomosis arms 24 to realize connection and fastening.

In the course of the blood vessel anastomotic operation, the operating physician directly presses thefirst forceps body 21 drivingarm 26 and thesecond forceps body 22 drivingarm 26, so as to lift the two upper anastomotic rings 31, thereby forming an open-loop structure of theanastomotic ring 31, and the main physician can conveniently place the blood vessels on two sides to the center of the loweranastomotic ring 31 through other auxiliary instruments, thereby restoring the drivingarms 26 on the front side and the rear side to the initial state, and then theanastomotic ring 31 on the lifted upper side can fall back, under the auxiliary cooperation of theguide structure 34, realizing accurate clamping, namely, theanastomotic ring 31 completes the fixation of the blood vessels on two sides. Theanastomosis ring 31 is designed into an up-down split structure, so that the complex and difficult operation of 'puncturing and leading blood vessels' during the blood vessel anastomosis is avoided.

Then the main doctor can turn over the edges through surgical instruments such as forceps and the like, and tightly fix the vascular wall edge-turning nails on the anastomosis nails 32, so that time and labor are saved, and the operation efficiency of vascular surgery on vascular anastomosis is greatly improved. The physician then moves thefirst body 21 so that it gradually approaches thesecond body 22, gradually creating a tendency for the two side vessels to be secured together. The structure that one side of the forceps body can move and the other side of the forceps body can be fixed is formed, and the moving convenience and the guiding accuracy of the device for anastomosis in the operation process are improved.

Until thefirst pincer body 21 is close to the blockingpart 12, and the blockingplate 61 is gradually pressed, so that the blockingplate 61 is retracted and moved downwards, thefirst pincer body 21 can pass through the blockingplate 61, and after the blockingplate 61 loses the pressing effect, the first pincer body is restored to the initial state under the action of the spring, namely, the mountinggroove 64 is popped up, and the blocking of thefirst pincer body 21 is realized.

The positioning of the position of thefirst caliper body 21 is established by thecatch 12. At this time, thefirst forceps body 21 and thesecond forceps body 22 approach each other, the anastomosis rings 31 corresponding to the two sides approach each other, theanastomosis nail 32 and the fixinghole 33 corresponding to one side are installed correspondingly, so as to achieve the approach and anastomosis of the blood vessels on the two sides, and at this time, the anastomosis rings 31 on the two sides form a primary buckling.

The drivingarms 26 are further pressed by external force through thefastening structures 35, namely, the drivingarms 26 on the front side and the rear side are respectively moved to be reversely expanded outwards, and the drivingarm 26 on the front side forms a fulcrum due to the cooperation of thering sleeve 71 and theend cover 14; therear drive arm 26 has the blocking action of thecatch 12. This in turn causes theactuating arm 26, the anchoringpost 1 and theanastomosis ring 31 in the same jaw set to form a lever structure. At this time, the drivingarms 26 on the front and rear sides are respectively moved to be reversely expanded, so that the anastomotic rings 31 on the front and rear sides tend to be continuously close to and squeezed. I.e., the tightening and squeezing effect ofstaples 32 and fixation holes 33 onanastomosis ring 31 will be increased again. As shown in fig. 8.

Theanastomosis nail 32 is made of stainless steel, theanastomosis ring 31 is made of polylactic acid, and the polylactic acid is soluble and has certain flexibility. The fixinghole 33 of theanastomosis ring 31 is locally deformed when being extruded, so that thetrigger block 44 of theanastomosis nail 32 is extruded, thetrigger block 44 moves inwards to extrude theelastic piece 45, thetrigger block 44 is dislocated with theswing rod 41, and the frictional resistance between thetrigger block 44 and theswing rod 41 disappears; theswing link 41 is ejected out of the inner wall of thepressing fixing hole 33 and forms a barb structure under the action of the energy released by theelastic pad 43, as shown in fig. 9. The anastomotic rings 31 on both sides form a snap-fit of the reinforcement plate. Greatly improving the buckling effect of the anastomosis rings 31 on both sides, and further improving the anastomosis effect of the vascular surgery.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a high-efficient type operation anastomat for vascular surgery which characterized in that: comprises a fixed column (1), a clamp body component (2) and an anastomosis structure (3);

the fixing column (1) is distributed in the front and back, symmetrically distributed sliding chutes (11) are further formed in the left side and the right side of the fixing column, and a telescopic blocking piece (12) is further arranged on the fixing column (1);

the clamp body assembly (2) comprises a first clamp body (21) and a second clamp body (22) which have the same structure; the first clamp body (21) is slidably sleeved and mounted on the fixed column (1); the second clamp body (22) is fixedly sleeved on the fixed column (1); the first clamp body (21) comprises two mechanical shear arms (23) which are identical in structure and symmetrically arranged; the mechanical shear arm (23) further comprises an anastomosis arm (24), a connecting arm (25) and a driving arm (26); one end of the connecting arm (25) is connected with the anastomosis arm (24), and the other end is connected with the driving arm (26); the two connecting arms (25) are connected through a rotating piece (27) and sleeved on the fixed column (1) so that the two connecting arms (25) can rotate relatively and cannot move relatively; the anastomosis arm (24) is connected with the anastomosis structure (3) through a connecting structure (28);

the anastomosis structure (3) comprises an anastomosis ring (31), anastomosis nails (32), fixing holes (33), a guide structure (34) and a fastening structure (35); the anastomosis ring (31) is of a semicircular structure, and the two anastomosis rings (31) which are arranged in the anastomosis arm (24) up and down are of a closed circular structure; the staples (32) are uniformly distributed in an annular shape and are arranged on the side wall of the anastomosis ring (31), and each staple (32) comprises an anastomosis body (36) and a needle part (37); the anastomosis body (36) is vertically arranged on the side wall of the anastomosis ring (31), and the needle part (37) is conical and is arranged at the front end of the anastomosis body (36); the fixing holes (33) are uniformly distributed in a ring shape and penetrate through the anastomosis ring (31); and keeping the anastomosis nails (32) at one side of the anastomosis ring (31) and the fixing holes (33) at one side of the anastomosis ring (31) to be installed in a matching way; the guide structure (34) is configured to enable the two anastomosis rings (31) which are arranged up and down to be accurately aligned;

the fastening structure (35) is configured in such a way that when the first clamp body (21) moves to a preset position, the blocking piece (12) completes the locking of the first clamp body (21), and by moving the driving arm (26) of the first clamp body (21) reversely, the anastomosis nail (32) is pressed against the side wall of the fixing hole (33), and the formation of the undercut locking structure between the anastomosis nail and the fixing hole is completed.

2. The high efficiency surgical stapler for extravascular surgery of claim 1, wherein: the fastening structure (35) is arranged on the anastomosis nail (32) and comprises a swing rod (41), a rotating shaft (42), an elastic pad (43), a trigger block (44) and an elastic piece (45); the anastomosis nail (32) is provided with a groove (46), and the rotating shaft (42) is vertically arranged in the groove (46); the swing rod (41) is rotatably sleeved on the rotating shaft (42); the elastic pad (43) is arranged in the groove (46) and is positioned on the inner side of the swing rod (41); the elastic piece (45) is arranged below the groove (46); the trigger block (44) is connected with one end of the elastic piece (45); in the initial state, the swing rod (41) is vertical and is in friction contact with the trigger block (44), at the moment, the elastic pad (43) is compressed, and the elastic piece (45) is in the original length.

3. The high efficiency surgical stapler for extravascular surgery of claim 2, wherein: when the anastomosis nail (32) and the fixing hole (33) are extruded and deformed, the trigger block (44) is extruded to move inwards, the swing rod (41) is unlocked and is ejected by the elastic pad (43) to form a barb structure.

4. A high efficiency surgical stapler for extravascular surgery according to claim 3, wherein: the fastening structures (35) are arranged in two symmetrical staples (32) which are arranged on the uppermost part and the lowermost part of the anastomosis ring (31) on one side.

5. The high efficiency surgical stapler for extravascular surgery of claim 1, wherein: the guide structure (34) comprises a guide block (81) and a guide groove (82); the two guide blocks (81) are respectively arranged at two ends of the anastomosis ring (31) at one side; the two guide grooves (82) are respectively arranged at two ends of the anastomosis ring (31) at the other side of the same group of forceps bodies; the guide block (81) is matched with the guide groove (82) for installation.

6. The high efficiency surgical stapler for extravascular surgery of claim 1, wherein: the connecting structure (28) comprises a clamping groove (51), a clamping block (52) and a positioning groove (53); the clamping groove (51) is arc-shaped and is arranged on the anastomosis arm (24); the clamping block (52) is arranged in the clamping groove (51); the positioning groove (53) is arranged on the anastomosis ring (31); the anastomosis ring (31) and the clamping groove (51) are kept in interference fit; the positioning groove (53) and the clamping block (52) are installed in a matched mode, so that the anastomosis nails (32) on the front side and the rear side of the anastomosis ring (31) and the corresponding fixing holes (33) are accurately positioned.

7. The high efficiency surgical stapler for extravascular surgery of claim 1, wherein: the blocking piece (12) comprises a blocking plate (61), a blocking rod (62) and a spring (63); an installation groove (64) is further formed in the fixed column (1), and a moving groove (65) is further formed in the center of the bottom end of the installation groove (64); the clamping plate (61) is installed in the installation groove (64) in a matching mode and can move up and down; one side surface of the clamping plate (61) facing the first clamp body (21) is an inclined surface; the clamping rod (62) is arranged at the lower end of the clamping plate (61) and is installed in the moving groove (65) in a matching mode; the spring (63) is sleeved on the clamping rod (62).

8. The high efficiency surgical stapler for extravascular surgery of claim 1, wherein: the rotating piece (27) comprises a ring sleeve (71), a key groove (72) and a short key (73); the two ring sleeves (71) are respectively arranged on the two connecting arms (25); the key groove (72) is annular and is arranged on the side wall of one ring sleeve (71); the short keys (73) are L-shaped and are uniformly distributed in a ring shape, and the short keys (73) are arranged on the side wall of the ring sleeve (71) which is oppositely arranged; the short key (73) is slidably disposed in the key groove (72).

9. The high efficiency surgical stapler for extravascular surgery of claim 8, wherein: two symmetrically arranged fixed blocks (13) are further arranged on the inner side wall of one ring sleeve (71) of the same group of pliers, and the fixed blocks (13) are installed in a matched mode with the sliding grooves (11); the first clamp body (21) moves along the sliding groove (11) through the matching of the ring sleeve (71) and the fixed block (13); the ring sleeve (71) of the second clamp body (22) and the fixed column (1) are kept rotatable and immovable relative to each other.

10. The high efficiency surgical stapler for extravascular surgery of claim 9, wherein: end covers (14) are arranged at two ends of the fixing column (1).

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