Medical open linear anastomosis equipment welding tooling

Abstract

The present invention discloses a medical open linear anastomosis device welding tool, the nail magazine arm includes two side plates arranged in parallel and symmetrically and a top plate connected between the upper end surfaces of the two side plates, the tool includes a base plate and a support seat arranged on the upper surface of the base plate, the support seat is embedded between the two side plates of the nail magazine arm and contacts the lower surface of the top plate of the nail magazine arm, a pin slot part is welded and connected to the top plate of the nail magazine arm, so as to form the pin slot, the pin slot part includes an arc portion for forming a pin slot with the top plate of the nail magazine arm and a plane portion contacting the surface of the top plate of the nail magazine arm; a movable block is respectively arranged on both sides of the support seat, the middle part of the pin shaft is embedded in the arc portion of the pin slot part, and the two ends of the pin shaft are respectively in the grooves on the movable block. The medical open linear anastomosis device welding tool of the present invention realizes the clamping of the nail magazine arm and the pin slot part, and can also accurately position the pin slot part with a smaller size at a specific position of the nail magazine arm, which ensures the welding accuracy between the two while facilitating welding.

Description

Technical Field

[0001] The invention relates to a medical open linear anastomosis device welding tool, belonging to the technical field of medical device processing. Background Art

[0002] The cutting and stapler is a medical device widely used in surgical operations. It has two functions: suturing and cutting. It can cut off excess tissue while suturing the wound. The device is easy to operate, has good surgical effects, and can greatly reduce the pain caused to the surgical patient. Therefore, it has won the unanimous approval of the majority of surgeons.

[0003] In surgical operations, medical laparoscopic cutting staplers have become an indispensable auxiliary medical device in the process of suturing human tissues. With the development of medicine and product research and development, more and more multifunctional staple products are used in clinical practice, and their application scope has involved various fields such as gastrointestinal surgery, hepatobiliary surgery, thoracic surgery, urology, and gynecology, becoming one of the indispensable tools for doctors. The application of laparoscopic cutting staplers has many advantages such as less bleeding during surgery, shorter operation time, reduced manual operation errors, avoidance of infection, and rapid postoperative functional recovery.

[0004] The laparoscopic cutting stapler includes a stapler magazine assembly and a stapler suturing and cutting assembly, wherein the stapler magazine assembly includes a stapler magazine inner core upper cover, a stapler magazine inner core lower cover, a firing safety and a stapler magazine outer shell, wherein the stapler magazine inner core upper cover, the stapler magazine inner core lower cover, the firing safety and the stapler magazine outer shell provide a very critical role for the cutting, suturing and pre-firing protection of the stapler suturing and cutting assembly, the assembly cooperation of the stapler magazine inner core upper cover and the stapler magazine inner core lower cover provides a guiding role for the advancement and withdrawal of the cutting knife assembly, and the firing safety provides a protective role to prevent the cutting knife assembly from being accidentally fired before the stapler magazine assembly and the stapler suturing and cutting assembly are assembled in place. Summary of the invention

[0005] The purpose of the present invention is to provide a medical open linear anastomosis instrument welding tool, which realizes the clamping of the nail magazine arm and the pin groove part, and at the same time realizes the precise positioning of the smaller pin groove part at a specific position of the nail magazine arm, thereby facilitating welding and ensuring the welding accuracy between the two.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a medical open linear anastomosis device welding tool, the nail magazine arm of the linear anastomosis device includes two side plates arranged in parallel and symmetrically and a top plate connected between the upper end surfaces of the two side plates, the tool includes a base plate and a support seat arranged on the upper surface of the base plate, the support seat is embedded between the two side plates of the nail magazine arm and contacts the lower surface of the top plate of the nail magazine arm, a pin groove member is welded and connected to the top plate of the nail magazine arm to form the pin groove, and the pin groove member includes an arc portion for forming a pin groove with the top plate of the nail magazine arm and a plane portion contacting the surface of the top plate of the nail magazine arm;

[0007] A movable block is respectively arranged on both sides of the support seat, and the two movable blocks are arranged opposite to each other, and the inner end surface of the movable block close to the support seat is used to contact the side plate surface of the nail magazine arm installed on the support seat;

[0008] A groove for the pin to be inserted is formed on the top surface of each of the two movable blocks near one end of the support seat, the middle part of the pin is inserted into the arc-shaped part of the pin groove part, and the two ends of the pin are respectively inserted into the grooves on the movable block, so that the pin groove part is placed on the top plate of the nail magazine arm between the two movable blocks;

[0009] A movable plate with a pressure head at the lower end is arranged above the pin groove member and can move in the up and down direction. When the movable plate moves downward, the pressure head is pressed and contacted with the plane part of the pin groove member.

[0010] The lower end of the movable block has a strip track portion with an isosceles trapezoidal cross section, and the base plate is provided with a strip guide groove matched with the strip track portion, and the two strip guide grooves are arranged perpendicular to the support seat, and the strip track portion of the movable block is embedded in the strip guide groove and can slide in a direction perpendicular to the support seat;

[0011] An elastic member is connected between the end surface of the movable block at one end away from the support seat and a driving block, the lower part of the driving block away from the elastic member is connected to a two-way cylinder, a right-angle hook body is fixed to the upper part of the driving block, a groove body part for the right-angle hook body to be embedded in the movable block is formed on the movable block, and the hook body part of the right-angle hook body is embedded in the groove body part of the movable block and can move in the groove body part along a direction perpendicular to the support seat, and the end of the right-angle hook body opposite to the hook body part is connected to the driving block;

[0012] The two side plates at one end of the nail magazine arm are provided with a notch, and the base plate is provided with a latch that can be embedded in the notch of the nail magazine arm. A first limiting seat is provided on the outer side of one end of the nail magazine arm with the notch, and two first telescopic blocks corresponding to the two side plates of the nail magazine arm are installed in the first limiting seat at intervals, one end of the first telescopic block is embedded in the first limiting seat and connected to the first limiting seat through a first spring, and the other end of the first telescopic block extends from the first limiting seat and is pressed and contacted with the end surface of the side plate of the nail magazine arm;

[0013] Two second limit seats are installed at intervals on the base plate located on the same side of the support seat, and the two second limit seats are respectively located at two ends of the support seat, and at least two second telescopic blocks are installed at intervals in the second limit seat, one end of the second telescopic block is embedded in the second limit seat and connected to the second limit seat through a second spring, and the other end of the second telescopic block extends from the first limit seat and is pressed and contacted with the outer surface of the side plate of the nail magazine arm;

[0014] The movable block has an installation groove opened in the vertical direction at one end close to the support seat, and an elastic support block movable in the vertical direction is embedded in the installation groove. The top surface of the elastic support block is a concave arc surface that can cooperate with the pin shaft.

[0015] The further improved scheme in the above technical scheme is as follows:

[0016] 1. In the above solution, a third spring is connected between the bottom surface of the elastic support block and the mounting groove.

[0017] 2. In the above solution, the elastic support block and the movable block are connected through a strip-shaped through hole opened on the elastic support block and a support shaft passing through the strip-shaped through hole, and both ends of the support shaft are respectively embedded in the movable block.

[0018] 3. In the above solution, a stop bar for limiting the travel of the movable block is installed on the base plate located between the support seat and the movable block.

[0019] 4. In the above solution, one end of each of the first telescopic block and the second telescopic block located in the first limit seat and the second limit seat is connected by a connecting strip.

[0020] 5. In the above solution, a guide block is arranged between the two first telescopic blocks and the two second telescopic blocks which are arranged at intervals.

[0021] 6. In the above solution, a bidirectional cylinder is installed on the lower surface of the base plate, and the piston rod of the bidirectional cylinder is connected to the two movable blocks respectively, so as to drive the movable blocks to reciprocate in a direction perpendicular to the support seat.

[0022] 7. In the above scheme, a cylinder frame is installed on the side of the base plate, and a cylinder installed on the cylinder frame is connected to the movable plate to drive the movable plate to move up and down.

[0023] 8. In the above solution, the substrate is installed on a four-axis driving mechanism.

[0024] 9. In the above solution, the diameter of the pin shaft is slightly larger than the diameter of the arc-shaped portion of the pin groove member.

[0025] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0026] 1. The medical open linear anastomosis instrument welding tool of the present invention realizes the clamping of the nail magazine arm and the pin groove part, and at the same time realizes the precise positioning of the smaller pin groove part at the specific position of the nail magazine arm, which ensures the welding accuracy between the two while facilitating welding; in addition, the lower end of the movable block is provided with a strip track portion with an isosceles trapezoidal cross section, and the base plate is provided with a strip guide groove matched with the strip track portion, and the two strip guide grooves are arranged perpendicular to the support seat, and the strip track portion of the movable block is embedded in the strip guide groove and can slide in a direction perpendicular to the support seat, and the matching arrangement of the dovetail groove and the rail improves the linearity of the movable block, ensures that the movable block applies vertical force to the side plate of the nail magazine arm, and avoids the deviation of the welding position due to the inclination of the nail magazine arm. ; Furthermore, an elastic member is connected between the end surface of the movable block at one end away from the support seat and a driving block, and the lower part of the driving block away from the elastic member is connected to a two-way cylinder, and a right-angle hook body is fixed to the upper part of the driving block, and the movable block is provided with a groove body part for the right-angle hook body to be embedded in, and the hook body part of the right-angle hook body is embedded in the groove body part of the movable block and can move in the groove body part along a direction perpendicular to the support seat, and the end of the right-angle hook body opposite to the hook body part is connected to the driving block, and the elastic member cooperates with the right-angle hook body and the groove body part structure to effectively avoid the position deviation error during the installation of the cylinder from being transmitted to the movable block, thereby further ensuring the verticality of the force applied by the movable block to the nail magazine arm, so as to prevent the nail magazine arm from deviating and improve the position accuracy of welding.

[0027] 2. The medical open linear anastomosis instrument welding tool of the present invention has a first limit seat disposed on the outer side of one end of the nail magazine arm with a notch, and two first telescopic blocks corresponding to the two side plates of the nail magazine arm are installed in the first limit seat at intervals, one end of the first telescopic block is embedded in the first limit seat and is connected to the first limit seat through a first spring, and the other end of the first telescopic block extends from the first limit seat and is in compression contact with the end surface of the side plate of the nail magazine arm, and the nail magazine arm is limited in the horizontal direction through the cooperation of the telescopic block, the latch and the notch on the side plate of the nail magazine arm, thereby ensuring the consistency of the welding position in this direction and improving the welding accuracy; further, two second limit seats are installed at intervals on the base plate located on the same side of the support seat, and the two second limit seats are respectively located at the two ends of the support seat, and at least The two second telescopic blocks, one end of the second telescopic block is embedded in the second limit seat and is connected to the second limit seat through a second spring, and the other end of the second telescopic block extends from the first limit seat and is in extrusion contact with the outer surface of the side plate of the nail magazine arm. Through the two groups of telescopic blocks arranged at intervals, the elastic limitation of the nail magazine arm in the vertical direction is achieved without damaging the nail magazine arm, which can effectively avoid the deviation of the nail magazine arm due to uneven force on the nail magazine arm, thereby improving the welding position deviation; in addition, the two first telescopic blocks and the second telescopic blocks are respectively connected at one end located in the first limit seat and the second limit seat by a connecting strip, and a guide block is arranged between the two first telescopic blocks and the two second telescopic blocks arranged at intervals. The arrangement of the connecting strip and the guide block further ensures the straightness of the force exerted by the telescopic block on the side plate of the nail magazine arm, avoids the deviation of the nail magazine arm, and ensures the position accuracy of the welding.

[0028] 3. The medical open linear anastomosis instrument welding tool of the present invention has a mounting groove opened in the vertical direction at one end of the movable block close to the support seat, and an elastic support block that can move in the vertical direction is embedded in the mounting groove. The top surface of the elastic support block is a concave arc surface that can cooperate with the pin shaft. The concave arc surface on the elastic support block provides elastic support for the pin shaft installed with the pin groove part, which can not only prevent the pin groove part from being damaged by the excessive force of the pressure head, but also prevent the pin groove part from being offset due to instantaneous force, thereby further ensuring the accuracy of welding between the pin groove part and the nail magazine arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Attached Figure 1 It is a structural schematic diagram of the welding tooling of the medical open linear anastomosis device of the present invention;

[0030] Attached Figure 2 The partial structure diagram of the welding tooling of the medical open linear anastomosis device of the present invention is shown in FIG. Figure 1 ;

[0031] Attached Figure 3The partial structure diagram of the welding tooling of the medical open linear anastomosis device of the present invention is shown in FIG. Figure 2 ;

[0032] Attached Figure 4 The partial structure diagram of the welding tooling of the medical open linear anastomosis device of the present invention is shown in FIG. Figure 3 ;

[0033] Attached Figure 5 The partial structure diagram of the welding tooling of the medical open linear anastomosis device of the present invention is shown in FIG. Figure 4 ;

[0034] Attached Figure 6 The partial structure diagram of the welding tooling of the medical open linear anastomosis device of the present invention is shown in FIG. Figure 5 ;

[0035] Attached Figure 7 The partial structural section of the welding tool of the medical open linear anastomosis device of the present invention Figure 1 ;

[0036] Attached Figure 8 The partial structural section of the welding tool of the medical open linear anastomosis device of the present invention Figure 2 ;

[0037] Attached Fig. 9 The partial structural section of the welding tool of the medical open linear anastomosis device of the present invention Figure 3 .

[0038] In the above drawings: 1, side plate; 2, top plate; 3, pin groove member; 301, arc portion; 302, plane portion; 4, base plate; 5, support seat; 6, movable block; 7, pin shaft; 8, groove; 9, pressure head; 10, movable plate; 11, two-way cylinder; 12, cylinder frame; 13, cylinder; 14, strip track portion; 15, strip guide groove; 16, drive block; 17, elastic member; 18, right-angle hook body; 19, groove body portion; 20, latch; 21, first limit seat; 22, first telescopic block; 23, first spring; 24, connecting strip; 25, guide block; 26, second limit seat; 27, second telescopic block; 28, second spring; 29, stop strip; 30, mounting groove; 31, elastic support block; 32, third spring; 33, strip through hole; 34, support shaft. DETAILED DESCRIPTION

[0039] In the description of this patent, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0040] Embodiment 1: A welding tool for a medical open linear anastomosis device, wherein the nail magazine arm of the linear anastomosis device comprises two side plates 1 arranged in parallel and symmetrically and a top plate 2 connected between the upper end surfaces of the two side plates 1, the tool comprises a base plate 4 and a support seat 5 arranged on the upper surface of the base plate 4, the support seat 5 is embedded between the two side plates 1 of the nail magazine arm and contacts the lower surface of the top plate 2 of the nail magazine arm, a pin groove member 3 is welded and connected to the top plate 2 of the nail magazine arm, thereby forming the pin groove, the pin groove member 3 comprises an arc portion 301 for forming a pin groove with the top plate 2 of the nail magazine arm and a plane portion 302 contacting the surface of the top plate 2 of the nail magazine arm;

[0041] A movable block 6 is respectively disposed on both sides of the support seat 5, and the two movable blocks 6 are disposed opposite to each other, and the inner end surface of the movable block 6 close to the support seat 5 is used to contact the side plate 1 of the nail magazine arm installed on the support seat 5;

[0042] A groove 8 for the pin shaft 7 to be inserted is formed on the top surface of each of the two movable blocks 6 near one end of the support seat 5. The middle part of the pin shaft 7 is inserted into the arc-shaped part 301 of the pin groove member 3. Both ends of the pin shaft 7 are respectively inserted into the groove 8 on the movable block 6, so that the pin groove member 3 is placed on the nail magazine arm top plate 2 between the two movable blocks 6.

[0043] A movable plate 10 with a pressing head 9 at the lower end is disposed above the pin groove member 3 and can move in the up-down direction. When the movable plate 10 moves downward, the pressing head 9 is pressed and contacted with the flat surface 302 of the pin groove member 3.

[0044] The lower end of the movable block 6 has a strip track portion 14 with an isosceles trapezoidal cross section, and the base plate 4 is provided with a strip guide groove 15 that matches the strip track portion 14. Both strip guide grooves 15 are arranged perpendicular to the support seat 5. The strip track portion 14 of the movable block 6 is embedded in the strip guide groove 15 and can slide in a direction perpendicular to the support seat 5.

[0045] An elastic member 17 is connected between the end surface of the movable block 6 at one end away from the support seat 5 and a driving block 16. The lower part of the driving block 16 away from the elastic member 17 is connected to a two-way cylinder 11. A right-angle hook body 18 is fixed to the upper part of the driving block 16. The movable block 6 is provided with a groove body portion 19 for the right-angle hook body 18 to be embedded. The hook body portion of the right-angle hook body 18 is embedded in the groove body portion 19 of the movable block 6 and can move in the groove body portion 19 along a direction perpendicular to the support seat 5. The end of the right-angle hook body 18 opposite to the hook body portion is connected to the driving block 16.

[0046] The two side plates 1 at one end of the nail magazine arm are provided with a notch, and the base plate 4 is provided with a latch 20 that can be embedded in the notch of the nail magazine arm. A first limiting seat 21 is provided on the outer side of the one end of the nail magazine arm with the notch, and two first telescopic blocks 22 corresponding to the two side plates 1 of the nail magazine arm are installed in the first limiting seat 21 at intervals. One end of the first telescopic block 22 is embedded in the first limiting seat 21 and connected to the first limiting seat 21 through a first spring 23. The other end of the first telescopic block 22 extends from the first limiting seat 21 and is pressed and contacted with the end surface of the side plate 1 of the nail magazine arm;

[0047] Two second limit seats 26 are installed at intervals on the base plate 4 located on the same side of the support seat 5. The two second limit seats 26 are respectively located at the two ends of the support seat 5. At least two second telescopic blocks 27 are installed at intervals in the second limit seat 26. One end of the second telescopic block 27 is embedded in the second limit seat 26 and connected to the second limit seat 26 through a second spring 28. The other end of the second telescopic block 27 extends from the first limit seat 21 and is pressed and contacted with the outer surface of the nail magazine arm side plate 1.

[0048] The movable block 6 has a mounting groove 30 opened in the vertical direction at one end close to the support seat 5. An elastic support block 31 movable in the vertical direction is embedded in the mounting groove 30. The top surface of the elastic support block 31 is a concave arc surface that can cooperate with the pin shaft 7.

[0049] A third spring 32 is connected between the bottom surface of the elastic support block 31 and the mounting groove 30; the elastic support block 31 and the movable block 6 are connected through a strip-shaped through hole 33 provided on the elastic support block 31 and a support shaft 34 passing through the strip-shaped through hole 33, and both ends of the support shaft 34 are respectively embedded in the movable block 6;

[0050] A stop bar 29 for limiting the travel of the movable block 6 is installed on the base plate 4 located between the support seat 5 and the movable block 6; the two first telescopic blocks 22 and the second telescopic blocks 27 are respectively located in the first limit seat 21 and the second limit seat 26 at one end thereof and are connected by a connecting bar 24.

[0051] Embodiment 2: A welding tool for a medical open linear anastomosis device, wherein the nail magazine arm of the linear anastomosis device comprises two side plates 1 arranged in parallel and symmetrically and a top plate 2 connected between the upper end surfaces of the two side plates 1, the tool comprises a base plate 4 and a support seat 5 arranged on the upper surface of the base plate 4, the support seat 5 is embedded between the two side plates 1 of the nail magazine arm and contacts the lower surface of the top plate 2 of the nail magazine arm, a pin groove member 3 is welded and connected to the top plate 2 of the nail magazine arm, thereby forming the pin groove, the pin groove member 3 comprises an arc portion 301 for forming a pin groove with the top plate 2 of the nail magazine arm and a plane portion 302 contacting the surface of the top plate 2 of the nail magazine arm;

[0052] A movable block 6 is respectively disposed on both sides of the support seat 5, and the two movable blocks 6 are disposed opposite to each other, and the inner end surface of the movable block 6 close to the support seat 5 is used to contact the side plate 1 of the nail magazine arm installed on the support seat 5;

[0053] A groove 8 for the pin shaft 7 to be inserted is formed on the top surface of each of the two movable blocks 6 near one end of the support seat 5. The middle part of the pin shaft 7 is inserted into the arc-shaped part 301 of the pin groove member 3. Both ends of the pin shaft 7 are respectively inserted into the groove 8 on the movable block 6, so that the pin groove member 3 is placed on the nail magazine arm top plate 2 between the two movable blocks 6.

[0054] A movable plate 10 with a pressing head 9 at the lower end is disposed above the pin groove member 3 and can move in the up-down direction. When the movable plate 10 moves downward, the pressing head 9 is pressed and contacted with the flat surface 302 of the pin groove member 3.

[0055] The lower end of the movable block 6 has a strip track portion 14 with an isosceles trapezoidal cross section, and the base plate 4 is provided with a strip guide groove 15 that matches the strip track portion 14. Both strip guide grooves 15 are arranged perpendicular to the support seat 5. The strip track portion 14 of the movable block 6 is embedded in the strip guide groove 15 and can slide in a direction perpendicular to the support seat 5.

[0056] An elastic member 17 is connected between the end surface of the movable block 6 at one end away from the support seat 5 and a driving block 16. The lower part of the driving block 16 away from the elastic member 17 is connected to a two-way cylinder 11. A right-angle hook body 18 is fixed to the upper part of the driving block 16. The movable block 6 is provided with a groove body portion 19 for the right-angle hook body 18 to be embedded. The hook body portion of the right-angle hook body 18 is embedded in the groove body portion 19 of the movable block 6 and can move in the groove body portion 19 along a direction perpendicular to the support seat 5. The end of the right-angle hook body 18 opposite to the hook body portion is connected to the driving block 16.

[0057] The two side plates 1 at one end of the nail magazine arm are provided with a notch, and the base plate 4 is provided with a latch 20 that can be embedded in the notch of the nail magazine arm. A first limiting seat 21 is provided on the outer side of the one end of the nail magazine arm with the notch, and two first telescopic blocks 22 corresponding to the two side plates 1 of the nail magazine arm are installed in the first limiting seat 21 at intervals. One end of the first telescopic block 22 is embedded in the first limiting seat 21 and connected to the first limiting seat 21 through a first spring 23. The other end of the first telescopic block 22 extends from the first limiting seat 21 and is pressed and contacted with the end surface of the side plate 1 of the nail magazine arm;

[0058] Two second limit seats 26 are installed at intervals on the base plate 4 located on the same side of the support seat 5. The two second limit seats 26 are respectively located at the two ends of the support seat 5. At least two second telescopic blocks 27 are installed at intervals in the second limit seat 26. One end of the second telescopic block 27 is embedded in the second limit seat 26 and connected to the second limit seat 26 through a second spring 28. The other end of the second telescopic block 27 extends from the first limit seat 21 and is pressed and contacted with the outer surface of the nail magazine arm side plate 1.

[0059] The movable block 6 has a mounting groove 30 opened in the vertical direction at one end close to the support seat 5. An elastic support block 31 movable in the vertical direction is embedded in the mounting groove 30. The top surface of the elastic support block 31 is a concave arc surface that can cooperate with the pin shaft 7.

[0060] A guide block 25 is provided between the two first telescopic blocks 22 and the two second telescopic blocks 27 which are arranged at intervals; a bidirectional cylinder 11 is installed on the lower surface of the above-mentioned base plate 4, and the piston rod of the bidirectional cylinder 11 is respectively connected to the two movable blocks 6, so as to drive the movable blocks 6 to reciprocate in a direction perpendicular to the support seat 5;

[0061] A cylinder frame 12 is installed on the side of the above-mentioned base plate 4, and a cylinder 13 installed on the above-mentioned cylinder frame 12 is connected to the movable plate 10 to drive the movable plate 10 to move up and down; the above-mentioned base plate 4 is installed on a four-axis driving mechanism; the diameter of the above-mentioned pin shaft 7 is slightly larger than the diameter of the arc portion 301 of the above-mentioned pin groove member 3.

[0062] Working principle: When in use, first install the nail magazine arm on the support seat, and then drive the two movable blocks to clamp and fix the nail magazine arm from both sides. At this time, put the pin shaft with the pin groove part installed in the middle into the groove on the two movable blocks, so that the pin groove part is located on the top plate of the nail magazine arm, and then drive the movable plate to move downward so that the pressure head presses the flat part of the pin groove part, thereby realizing the clamping of the nail magazine arm and the pin groove part, and then further weld the two by laser welding equipment.

[0063] When the above-mentioned medical open linear anastomosis instrument welding tool is used, the clamping of the nail magazine arm and the pin slot part is realized, and the pin slot part with a smaller size is accurately positioned at a specific position of the nail magazine arm, which facilitates welding and ensures the welding accuracy between the two.

[0064] In addition, the dovetail groove and the rail are arranged in coordination to improve the linearity of the movable block, ensuring that the movable block applies vertical force to the side plate of the nail magazine arm, thereby avoiding the deviation of the welding position due to the inclination of the nail magazine arm; further, the elastic member is arranged in coordination with the right-angle hook body and the groove body structure, which can effectively avoid the position deviation error during the installation of the cylinder being transmitted to the movable block, further ensuring the verticality of the force applied by the movable block to the nail magazine arm, thereby preventing the deviation of the nail magazine arm and improving the position accuracy of the welding;

[0065] In addition, the telescopic block, the latch and the notch on the side plate of the nail magazine arm are used to limit the position of the nail magazine arm in the horizontal direction without damaging the nail magazine arm, thereby ensuring the consistency of the welding position in this direction and improving the welding accuracy.

[0066] In addition, two sets of telescopic blocks are arranged at intervals to realize elastic limitation of the nail magazine arm in the vertical direction without damaging the nail magazine arm, which can effectively avoid the deviation of the welding position caused by uneven force on the nail magazine arm, thereby improving the welding accuracy;

[0067] In addition, the setting of the connecting strip and the guide block further ensures the straightness of the force exerted by the telescopic block on the side plate of the nail magazine arm, avoids the deviation of the nail magazine arm, and ensures the position accuracy of the welding;

[0068] In addition, the concave arc surface on the elastic support block provides elastic support for the pin shaft on which the pin slot part is installed, which not only prevents the pin slot part from being damaged by excessive force from the pressure head, but also prevents the pin slot part from being offset due to instantaneous force, further ensuring the welding accuracy between the pin slot part and the nail magazine arm.

[0069] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical open linear anastomosis device welding tool, the stapler arm of the linear anastomosis device comprises two side plates (1) arranged in parallel and symmetrically and a top plate (2) connected between the upper end surfaces of the two side plates (1), the tool comprises a base plate (4) and a support seat (5) arranged on the upper surface of the base plate (4), the support seat (5) is embedded between the two side plates (1) of the stapler arm and contacts with the lower surface of the top plate (2) of the stapler arm, characterized in that: A pin groove member (3) is welded to the top plate (2) of the nail magazine arm to form the pin groove, wherein the pin groove member (3) comprises an arc portion (301) for forming a pin groove with the top plate (2) of the nail magazine arm and a flat portion (302) in surface contact with the top plate (2) of the nail magazine arm; A movable block (6) is respectively arranged on both sides of the support seat (5), and the two movable blocks (6) are arranged opposite to each other, and the inner end surface of the movable block (6) close to the support seat (5) is used to contact the side plate (1) of the nail magazine arm installed on the support seat (5); A groove (8) for the pin shaft (7) to be inserted is formed on the top surface of each of the two movable blocks (6) close to one end of the support seat (5), the middle part of the pin shaft (7) is inserted into the arc-shaped part (301) of the pin groove member (3), and the two ends of the pin shaft (7) are respectively inserted into the grooves (8) on the movable block (6), so that the pin groove member (3) is placed on the nail magazine arm top plate (2) located between the two movable blocks (6); A movable plate (10) having a pressure head (9) at the lower end is arranged above the pin groove member (3) and is movable in an up-down direction. When the movable plate (10) moves downward, the pressure head (9) is pressed and contacted with the plane portion (302) of the pin groove member (3); The lower end of the movable block (6) has a strip track portion (14) with an isosceles trapezoidal cross section, and the base plate (4) is provided with a strip guide groove (15) that cooperates with the strip track portion (14), and the two strip guide grooves (15) are arranged perpendicular to the support seat (5), and the strip track portion (14) of the movable block (6) is embedded in the strip guide groove (15) and can slide in a direction perpendicular to the support seat (5); An elastic member (17) is connected between an end surface of the movable block (6) away from the support seat (5) and a driving block (16); a lower portion of the driving block (16) away from the elastic member (17) is connected to a bidirectional cylinder (11); a right-angle hook (18) is fixed to the upper portion of the driving block (16); a groove portion (19) is formed on the movable block (6) for the right-angle hook (18) to be embedded in; the hook portion of the right-angle hook (18) is embedded in the groove portion (19) of the movable block (6) and can move in the groove portion (19) in a direction perpendicular to the support seat (5); and an end of the right-angle hook (18) opposite to the hook portion is connected to the driving block (16); The two side plates (1) at one end of the nail magazine arm are provided with a notch, the base plate (4) is provided with a latch (20) which can be inserted into the notch of the nail magazine arm, a first limit seat (21) is provided on the outer side of the one end of the nail magazine arm with the notch, two first telescopic blocks (22) corresponding to the two side plates (1) of the nail magazine arm are installed in the first limit seat (21) at intervals, one end of the first telescopic block (22) is inserted into the first limit seat (21) and connected to the first limit seat (21) through a first spring (23), and the other end of the first telescopic block (22) extends from the first limit seat (21) and is pressed and contacted with the end surface of the side plate (1) of the nail magazine arm; Two second limit seats (26) are installed at intervals on the base plate (4) located on the same side of the support seat (5), and the two second limit seats (26) are respectively located at two ends of the support seat (5). At least two second telescopic blocks (27) are installed at intervals in the second limit seat (26), one end of the second telescopic block (27) is embedded in the second limit seat (26) and connected to the second limit seat (26) through a second spring (28), and the other end of the second telescopic block (27) extends from the first limit seat (21) and is in compression contact with the outer surface of the nail magazine arm side plate (1); The movable block (6) has a mounting groove (30) opened in the vertical direction at one end close to the support seat (5), and an elastic support block (31) movable in the vertical direction is embedded in the mounting groove (30). The elastic support block (31) and the movable block (6) are connected to each other through a strip-shaped through hole (33) opened on the elastic support block (31) and a support shaft (34) passing through the strip-shaped through hole (33). Both ends of the support shaft (34) are respectively embedded in the movable block (6), and the top surface of the elastic support block (31) is a concave arc surface that can cooperate with the pin shaft (7).

2. The medical open linear anastomosis device welding tool according to claim 1, characterized in that: A third spring (32) is connected between the bottom surface of the elastic support block (31) and the mounting groove (30).

3. The medical open linear anastomosis device welding tool according to claim 1, characterized in that: A stop bar (29) for limiting the travel of the movable block (6) is installed on the base plate (4) located between the support seat (5) and the movable block (6).

4. The medical open linear anastomosis device welding tool according to claim 1, characterized in that: One end of each of the two first telescopic blocks (22) and the second telescopic block (27) located in the first limiting seat (21) and the second limiting seat (26) is connected via a connecting strip (24).

5. The medical open linear anastomosis device welding tool according to claim 1 or 4, characterized in that: A guide block (25) is provided between two first telescopic blocks (22) and two second telescopic blocks (27) that are arranged at intervals.

6. The medical open linear anastomosis device welding tool according to claim 1, characterized in that: A bidirectional cylinder (11) is mounted on the lower surface of the base plate (4), and a piston rod of the bidirectional cylinder (11) is connected to two movable blocks (6) respectively, so as to drive the movable blocks (6) to reciprocate in a direction perpendicular to the support seat (5).

7. The medical open linear anastomosis device welding tool according to claim 1, characterized in that: A cylinder frame (12) is installed on the side of the base plate (4), and a cylinder (13) installed on the cylinder frame (12) is connected to the movable plate (10) and is used to drive the movable plate (10) to move up and down.

8. The medical open linear anastomosis device welding tool according to claim 1, characterized in that: The base plate (4) is mounted on a four-axis driving mechanism.

9. The medical open linear anastomosis device welding tool according to claim 1, characterized in that: The diameter of the pin shaft (7) is slightly larger than the diameter of the arc-shaped portion (301) of the pin groove member (3).

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