Endoscope joint head linear cutting anastomat
Technical Field
The invention relates to the field of medical instruments, in particular to a linear cutting anastomat for an endoscopic joint head.
Background
The anastomat is the first stapler in the world, and the anastomat for linearly cutting the endoscope joint head consists of a firing rod, a closing rod, a handle, a nail anvil release button, a knife direction indicator, a safety device, a firing indication window, a joint knob, a rotating ring, a near-end black line, a nail bin seat, a nail bin clamping groove, a far-end black line, a nail anvil and a cutter head indicator.
The linear anastomat mainly comprises a nail abutting seat part and a moving body part, wherein the moving body part comprises a nail bin, an adjusting nut is rotated to enable the moving body to drive the nail bin to move towards the nail abutting seat, and after a certain area is reached, a percussion handle is tightly held to push the anastomosis nails out of the surface of the nail bin until the anastomosis nails are formed.
The existing straight line cutting anastomat has the following defects: the inconvenient control nail storehouse seat carries out rotation regulation, touches the rotatory ring easily at the device operation in-process, causes the nail storehouse seat rotatory, influences going on of operation to can not prescribe a limit to it after nail storehouse seat removes appointed angle, make its rigidity, sewing the in-process, can not take place the deflection.
Therefore, an endoscopic joint head linear cutting stapler is required to solve the above technical problems.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the endoscope joint head linear cutting anastomat which is inconvenient for controlling the nail bin seat to rotate and adjust, is easy to touch the rotating ring in the operation process of the anastomat, causes the nail bin seat to rotate, influences the operation, cannot limit the nail bin seat after the nail bin seat moves to a specified angle, enables the position of the nail bin seat to be fixed, and cannot deflect in the suturing process.
The technical scheme for solving the technical problems is as follows: the anastomat comprises an anastomat body, a handle, a closing rod and a firing rod are sequentially arranged below one end of the anastomat body, a rotating ring is movably connected to the other end of the anastomat body, an extension pipe is fixed to one end, far away from the anastomat body, of the rotating ring, a nail bin seat is installed on the extension pipe, a steering assembly is arranged between the anastomat body and the rotating ring, a limiting assembly is arranged on the side face of the anastomat body, and a traction assembly is arranged between the anastomat body and the closing rod.
Preferably, the endoscope joint head linear cutting anastomat comprises a steering assembly and a second connecting shaft, wherein the steering assembly comprises a first tooth block, a plurality of groups of first tooth blocks are fixed at one end, close to the rotating ring, of the anastomat body, a first connecting shaft and a second connecting shaft are arranged on the side face of the anastomat body side by side, a first gear and a second gear are fixed on the side face of the first connecting shaft and the side face of the second connecting shaft, and a groove is formed in the center of each group of second tooth blocks on the second gear.
Preferably, in the endoscope joint head linear cutting anastomat, the first tooth block is in meshed connection with the first gear, an included angle between the first tooth block and the first gear is 90 degrees, the first gear and the first connecting shaft are of an integrated structure, and one end of the first connecting shaft is fixed in a bearing arranged inside the anastomat body.
Preferably, in the endoscope joint head linear cutting anastomat, the second gear and the second connecting shaft are of an integrated structure, one end of the second connecting shaft is fixed in a bearing arranged inside the anastomat body, the second gear is in meshing connection with the first gear, and an included angle between the second gear and the first gear is 180 °.
Preferably, the endoscope joint head linear cutting anastomat comprises a limiting frame, a fixing block and a limiting groove, wherein two ends of the limiting frame are fixedly provided with a convex block, a connecting rod is movably mounted on the convex block, one end of the connecting rod is provided with a through hole, the fixing block is fixed on the side face of the anastomat body, one end of the connecting rod penetrates through the fixing block, a spring is arranged between the convex block and the fixing block, the spring is mounted on the outer side of the connecting rod, the limiting groove is formed in the middle position of the outer side of the first connecting shaft, and the limiting frame is located inside the limiting groove.
Preferably, in the endoscope joint head linear cutting anastomat, circular holes with the same diameter are formed in the protruding block and the fixing block, the diameter of each circular hole is the same as that of the connecting rod, the cross section of the connecting rod is in a T shape, and the connecting rod and the fixing block form a sliding structure.
Preferably, in the endoscope joint head linear cutting stapler, a cross section of the limiting frame is semicircular, an inner side of the limiting frame is rough and uneven, a thickness of the limiting frame is the same as a width of the limiting groove, and an inner diameter of the limiting frame is the same as a diameter of the limiting groove.
Preferably, foretell chamber mirror joint head straight line cutting anastomat, wherein the subassembly that pulls includes first fixed pulley, first haulage rope and second haulage rope, first fixed pulley is fixed on the anastomat is one body, the one end of first haulage rope is passed the through-hole and is installed on the connecting rod, the below of first fixed pulley is provided with second fixed pulley and third fixed pulley, the second fixed pulley and the below of third fixed pulley is provided with the fourth fixed pulley, the second fixed pulley third fixed pulley and the fourth fixed pulley is fixed on the anastomat is one body.
Preferably, in the above endoscope joint head linear cutting stapler, one end of the second pulling rope passes through the through hole and is installed on another group of connecting rods, the first pulling rope passes through the first fixed pulley, the second fixed pulley, the third fixed pulley and the fourth fixed pulley and is installed inside the closing rod, and the second pulling rope passes through the second fixed pulley, the third fixed pulley and the fourth fixed pulley and is installed inside the closing rod.
Preferably, in the above endoscope joint head linear cutting stapler, the first pulling rope and the connecting rod are movably connected, and the second fixed pulley and the third fixed pulley are fixed on the stapler body side by side.
The invention has the beneficial effects that:
1. when adjusting nail storehouse seat angle, hand-held device, user's thumb can promote from top to bottom the second gear through the recess, and then with the help of the first tooth piece of first gear drive, make rotatory ring carry out the angular rotation, and then the angle that changes nail storehouse seat is when adjusting nail storehouse seat angle, hand-held device, user's thumb can promote from top to bottom the second gear through the recess, and then with the help of the first tooth piece of first gear drive, make rotatory ring carry out the angular rotation, in hand-held device, put the thumb on the recess, let the angle of control nail storehouse seat that the user can be more convenient.
2. The inner side of the limiting frame is attached to the limiting groove by moving the limiting frame, so that the friction force of the first connecting shaft is increased, the first connecting shaft is limited, the first connecting shaft cannot rotate easily, and the nail bin seat is prevented from moving and rotating at an angle when the nail anvil is closed, so that the patient is prevented from being damaged.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the first and second gears of the present invention with the first and second gears removed;
FIG. 3 is a schematic view of the structure of FIG. 2 according to another embodiment of the present invention;
FIG. 4 is a schematic view of a limiting assembly of the present invention;
FIG. 5 is a schematic view of the configuration of the first connecting shaft of the needle of the restricting assembly of the present invention in a use state;
FIG. 6 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a stapler body; 2. a handle; 3. a closing lever; 4. a firing bar; 5. a rotating ring; 6. an extension pipe; 7. a nail magazine base; 8. a steering assembly; 801. a first tooth block; 802. a first connecting shaft; 803. a first gear; 804. a second connecting shaft; 805. a second gear; 806. a groove; 9. defining an assembly; 901. a limiting frame; 902. a connecting rod; 903. a through hole; 904. a fixed block; 905. a spring; 906. a limiting groove; 10. a traction assembly; 1001. a first fixed pulley; 1002. a first pull cord; 1003. a second fixed pulley; 1004. a third fixed pulley; 1005. a second pull cord; 1006. and a fourth fixed pulley.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 6, a straight line cutting anastomat for an endoscope joint head comprises an anastomat body 1, a handle 2, a closing rod 3 and a firing rod 4 are sequentially arranged below one end of the anastomat body 1, a rotating ring 5 is movably connected to the other end of the anastomat body 1, an extension pipe 6 is fixed to one end of the rotating ring 5 far away from the anastomat body 1, a staple bin seat 7 is installed on the extension pipe 6, and a steering assembly 8 is arranged between the anastomat body 1 and the rotating ring 5.
The steering assembly 8 comprises a first toothed block 801, a plurality of groups of first toothed blocks 801 are fixed at one end of the rotating ring 5 close to the anastomat body 1, a first connecting shaft 802 and a second connecting shaft 804 are arranged on the side surface of the anastomat body 1 side by side, a first gear 803 and a second gear 805 are fixed on the side surfaces of the first connecting shaft 802 and the second connecting shaft 804, and a groove 806 is formed in the center position of each group of second toothed blocks on the second gear 805. When the angle of the magazine base 7 is adjusted, the user can hold the device by thumb to push the second gear 805 up and down through the groove 806, and then the first gear block 801 is driven by the first gear 803, so that the rotating ring 5 rotates angularly, and further the angle of the magazine base 7 is changed.
The first gear block 801 is in meshed connection with the first gear 803, an included angle between the first gear block 801 and the first gear 803 is 90 degrees, the first gear 803 and the first connecting shaft 802 are of an integrated structure, one end of the first connecting shaft 802 is fixed in a bearing arranged inside the anastomat body 1, the first connecting shaft 802 is fixed by the bearing arranged inside the anastomat body 1, the first connecting shaft 802 can rotate on the side surface of the anastomat body 1 and cannot block the rotation of the first gear 803, the first gear 803 and the first gear block 801 are designed in positions, the first gear 803 drives the rotating ring 5 through the first gear block 801, meanwhile, the first gear 803 does not occupy a small space and cannot influence the operation device of a user.
The second gear 805 and the second connecting shaft 804 are in an integrated structure, one end of the second connecting shaft 804 is fixed in a bearing arranged in the anastomat body 1, the second gear 805 and the first gear 803 are in meshed connection, and an included angle between the second gear 805 and the first gear 803 is 180 degrees. The user can control the first gear 803 to rotate forward and backward by controlling the second gear 805 to rotate forward and backward, and the second gear 805 can be placed at a position close to the fingers of the user by using the first gear 803 as a transmission medium, so that the operation of the user is facilitated.
The side of the stapler body 1 is provided with a limiting member 9.
The limiting component 9 comprises a limiting frame 901, a fixing block 904 and a limiting groove 906, two ends of the limiting frame 901 are fixed with lugs, a connecting rod 902 is movably mounted on the lugs, a through hole 903 is formed in one end of the connecting rod 902, the fixing block 904 is fixed on the side face of the anastomat body 1, one end of the connecting rod 902 penetrates through the fixing block 904, a spring 905 is arranged between the lugs and the fixing block 904, the spring 905 is mounted on the outer side of the connecting rod 902, the limiting groove 906 is formed in the middle of the outer side, and the limiting frame 901 is located inside the limiting groove 906. By moving the limiting frame 901, the inner side of the limiting frame 901 is attached to the limiting groove 906, so that the friction force of the first connecting shaft 802 is increased, the first connecting shaft 802 is limited, the first connecting shaft 802 cannot easily rotate, and the problem that the angle of the nail bin base 7 can also move and rotate to damage a patient when the nail anvil is closed is avoided.
Round holes with the same diameter are formed in the convex block and the fixing block 904, the diameter of each round hole is the same as that of the connecting rod 902, the cross section of the connecting rod 902 is T-shaped, and the connecting rod 902 and the fixing block 904 form a sliding structure. The position of the limit frame 901 is set to be obliquely above the fixing block 904 by using the connecting rod 902, and the connecting rod 902 is pulled to pass through the round hole to drive the limit frame 901 to move directionally, so that the position of the limit frame 901 is changed.
The cross section of the limiting frame 901 is semicircular, the inner side of the limiting frame 901 is rough and uneven, the thickness of the limiting frame 901 is the same as the width of the limiting groove 906, and the diameter of the inner side of the limiting frame 901 is the same as the diameter of the limiting groove 906. The limiting frame 901 is moved to make the inner side of the limiting frame 901 fit with the limiting groove 906, so that the limiting frame 901 is in contact with the first connecting shaft 802, the outer side of the first connecting shaft 802 is stressed, the friction force of the rotation of the first connecting shaft 802 is increased, the first connecting shaft 802 cannot rotate easily, and the rotation of the first gear 803 rotation control rotating ring 5 is avoided.
A drawing assembly 10 is arranged between the stapler body 1 and the closing rod 3.
The traction assembly 10 comprises a first fixed pulley 1001, a first traction rope 1002 and a second traction rope 1005, the first fixed pulley 1001 is fixed on the stapler body 1, one end of the first traction rope 1002 is installed on the connecting rod 902 through the through hole 903, a second fixed pulley 1003 and a third fixed pulley 1004 are provided below the first fixed pulley 1001, a fourth fixed pulley 1006 is provided below the second fixed pulley 1003 and the third fixed pulley 1004, the second fixed pulley 1003, the third fixed pulley 1004 and the fourth fixed pulley 1006 are fixed on the stapler body 1, one end of the second traction rope 1005 is installed on the other set of connecting rod 902 through the through hole 903, the first traction rope 1002 is installed inside the rod 3 through the first fixed pulley 1001, the second fixed pulley 1003, the third fixed pulley 1004 and the fourth fixed pulley 1006, the second traction rope 1005 is installed inside the closing rod 3 through the second fixed pulley 1003, the third fixed pulley 1004 and the fourth fixed pulley 1006, the first traction rope 1002 is movably connected with the connecting rod 902, and the second fixed pulley 1003 and the third fixed pulley 1004 are fixed on the anastomat body 1 side by side. One end of a first traction rope 1002 penetrates through the through hole 903 to be knotted, so that the first traction rope 1002 is connected with the connecting rod 902, then the first traction rope 1002 is installed on the first fixed pulley 1001, the second fixed pulley 1003, the third fixed pulley 1004 and the fourth fixed pulley 1006, the force bearing direction of the first traction rope 1002 is changed, the first traction rope 1002 penetrates through the closing rod 3 to be knotted and fixed, similarly, the second traction rope 1005 penetrates through the closing rod 3 to be knotted and fixed, the nail anvil is closed by closing the closing rod 3, at the moment, the closing rod 3 drives the first traction rope 1002 and the second traction rope 1005 to be stretched, and the limiting assembly 9 is started to avoid the change of the angle of the nail bin base 7.
The working principle is as follows: after the nail anvil is arranged in the nail bin base 7, the nail bin base 7 is in a closed state by pressing the closing rod 3, when one end of the device is applied to the body of a patient, the closing rod 3 is unfolded by pressing the reset button, when the affected part of the patient is treated, according to the position of the affected part, a user can push the second gear 805 up and down through the groove 806 to control the second gear 805 to rotate, the first gear 803 is driven by the first gear 803 to drive the rotating ring 5 to rotate, the angle of the nail bin base 7 is changed through the extension pipe 6 to enable the nail bin base 7 to aim at the part to be treated by the patient, after alignment is completed, the closing rod 3 is pressed to pull the first traction rope 1002 and the second traction rope 1005 when the closing rod 3 rotates, one end of the connecting rod 902 is pulled by the first traction rope 1002 and the second traction rope 1005 to enable the limiting frame 901 to move the compression spring 905, the inner side of the limiting frame 901 is attached to a limiting groove 906 formed in the first connecting shaft 802 by controlling the limiting frame 901 to move directionally through a round hole formed in the fixing block 904, the friction force of the first connecting shaft 802 is increased by the inner side of the limiting frame 901, the first connecting shaft 802 cannot move easily, the purpose of limiting rotation of the rotating ring 5 is achieved, and when a wound is sutured, the wound is sutured through continuously pressing the firing rod 4 and utilizing anastomotic nails inside the staple bin base 7.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.