Anastomat capable of being operated by one hand and easy to steer

Abstract

The invention relates to the technical field of endoscope linear type cutting anastomats, in particular to an anastomat capable of being operated by one hand and easy to turn, the anastomat comprises an anastomat body, the front side of the anastomat body is provided with a nail bin and a nail anvil; the anastomat further comprises a rotating cylinder rotationally connected to the front side of the anastomat body, a first driving assembly used for driving the rotating cylinder to rotate is arranged on the anastomat body, a mounting disc is arranged on the front side of the rotating cylinder, and a steering mechanism used for driving the mounting disc to steer is arranged between the rotating cylinder and the mounting disc. According to the anastomat, the second driving assembly can be controlled through the control knob, the steering mechanism is driven through the second driving assembly, the use angle of the nail bin and the use angle of the nail anvil can be rapidly adjusted, in the adjusting process, the anastomat does not shake, and the anastomat is convenient to use. And the head of the anastomat is not easy to damage human tissues, so that the anastomat is suitable for one-hand operation and use.

Description

Technical Field

[0001] The present invention relates to the technical field of laparoscopic linear cutting staplers, and in particular to a stapler which can be operated with one hand and is easy to turn. Background Art

[0002] Stapler, also known as stapler in medicine, is a medical device used to replace traditional manual suturing. Its working principle is similar to that of a stapler, and it mainly uses titanium nails or stainless steel nails to separate or staple tissues. According to different application scopes, staplers can be divided into many types, such as skin staplers, digestive tract (including esophagus, gastrointestinal, etc.) circular staplers, rectal staplers, circular hemorrhoid staplers, circumcision staplers, vascular staplers, hernia staplers, lung cutting staplers, etc.

[0003] Laparoscopic linear cutting stapler is a medical device frequently used in surgical operations on physiological tissues such as the digestive tract. When performing transverse anastomosis and resection of stomach, lung and intestinal tissues, linear wounds will be produced, and a cutting stapler is required in conjunction with staplers for linear anastomosis. When performing linear anastomosis, it is necessary to adjust the use angle of the stapler magazine and the anvil on the stapler, that is, to adjust the angle of the stapler head. There are usually two existing angle adjustment methods: the first adjustment method requires two hands to adjust, one hand to hold the stapler steady, and the other hand to pull the adjustment mechanism to achieve the adjustment. During the adjustment process, the stapler may cause the entire stapler to shake due to excessive force during the pulling process. The shaking of the stapler may cause damage to the patient. In addition, this method can only be limited to a few specific angles when adjusting the stapler head. This type of stapler generally has only 3. -4 gears, each gear is about 5°-10°, and the adjustment accuracy is relatively low; the second adjustment method is to turn on the adjustment switch on the stapler and press the head of the stapler against the human tissue for adjustment. This adjustment method is also easy to cause harm to the human body. During the adjustment process, a large space is required around the head of the stapler. For some patients with smaller intracavity sizes, it is not convenient to use. In addition, the adjustment accuracy of this adjustment method depends entirely on the operator's positioning of the head, which has high requirements on the operator and the adjustment accuracy is not high enough. For this reason, we propose a stapler that can be operated with one hand and is easy to turn. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a single-handed, easy-to-steer stapler.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stapler that can be operated with one hand and is easy to turn, a stapler body, a stapler magazine and a staple anvil are arranged on the front side of the stapler body;

[0007] Also includes:

[0008] A rotating cylinder rotatably connected to the front side of the stapler body, a first driving assembly for driving the rotating cylinder to rotate is arranged on the stapler body, a mounting disk is arranged on the front side of the rotating cylinder, a steering mechanism for driving the mounting disk to turn is arranged between the rotating cylinder and the mounting disk, the nail magazine and the nail anvil are both located on the front side of the mounting disk, the nail anvil is rotatably connected to the mounting disk, a second driving assembly for driving the steering mechanism to operate is arranged on the stapler body, a control button and a control knob are also arranged on the stapler body, the control button is electrically connected to the first driving assembly, and the control knob is electrically connected to the second driving assembly.

[0009] Preferably, the steering mechanism includes a mounting cylinder, a first rotating shaft, a first gear, a rack, a driving tube and a driving plate. Both sides of the mounting cylinder are rotatably connected to the rotating cylinder through the first rotating shaft. A first gear is mounted on one of the first rotating shafts, and the first gear is meshed with the rack. The driving tube is mounted inside the stapler body, and one end of the driving tube extends to the outside of the rotating cylinder. The driving tube can move along the axis of the rotating cylinder. A driving plate is mounted on the end of the driving tube, and the end of the rack is fixedly connected to the driving plate. The driving tube and the driving plate are driven to move through the second driving assembly.

[0010] Preferably, the second driving assembly includes a second motor, a screw nut pair and a push rod, the screw nut pair is installed inside the stapler body and arranged along the axis of the drive tube, the second motor is fixedly connected to the shell of the stapler body and is used to drive the screw nut pair to operate, and the screw nut pair drives the drive tube to move through the push rod.

[0011] Preferably, the first driving assembly includes an annular cover fixed to the front end of the stapler body, the interior of the annular cover is connected to a mounting ring via a guide assembly, the mounting ring is fixed to the outside of the rotating cylinder in a sleeved state, a gear ring is fixed to the front side of the mounting ring in a centered state, a mounting shaft is rotatably connected to the annular cover, a second gear is fixed to one end of the mounting shaft, the second gear and the gear ring are meshed with each other, and a second motor for driving the mounting shaft is installed on the outside of the annular cover.

[0012] Preferably, the guide assembly includes an annular groove opened on the inner side of the annular cover, the interior of the annular groove is rotatably connected with an annular plate, the annular plate is sleeved and fixed on the outer side of the mounting ring, and the cross-section of the annular groove and the annular plate is T-shaped.

[0013] Preferably, it also includes a third driving component for controlling the opening and closing of the anvil, the third driving component includes a driving rod, a piston, a connecting block, a baffle, an infusion tube, a first push block and a spring, the driving rod passes through the driving tube, the driving rod is rotatably connected to the connecting block, the connecting block is fixedly connected to one end of the piston, the piston forms a sealing surface with the inner wall of the mounting cylinder, the baffle is sealingly connected to the inner wall of the mounting cylinder, the area between the piston, the baffle and the mounting cylinder is filled with liquid, the liquid acts on the end face of the first push block through the infusion tube, the anvil is driven to close through the first push block, a spring is installed between the anvil and the inner wall of the mounting cylinder, and the anvil is controlled to reset through the spring.

[0014] Preferably, a driving handle is installed on the stapler body through a torsion shaft, and a push plate is fixed on one side of the driving handle located inside the stapler body, the push plate is adapted to the second push block, and the push plate pushes the driving rod to move through the second push block.

[0015] Preferably, a second push block limiting cylinder is installed inside the stapler body, so that the second push block moves along the axis of the driving rod. A guide wheel is installed on the driving rod, and the end of the guide wheel contacts the inner wall of the driving tube.

[0016] Preferably, scale lines are provided on the control knob.

[0017] The beneficial effects of the present invention are:

[0018] 1. The stapler proposed in the present invention can control the second drive component through the control knob, and the second drive component drives the steering mechanism to achieve rapid adjustment of the use angle of the stapler and the stapler anvil. During the adjustment process, the stapler will not shake, and the stapler head is not likely to cause damage to human tissue, so it is suitable for one-handed operation.

[0019] 2. The stapler proposed in the present invention has a scale on the control knob, through which the number of rotations of the second motor can be controlled, and the moving distance of the driving tube can be accurately controlled. In conjunction with the first gear and the rack, the steering angle of the staple magazine and the anvil can be accurately controlled, thereby effectively improving the adjustment accuracy of the staple magazine and the anvil.

[0020] 3. The stapler proposed in the present invention can control the first drive assembly through the control button to realize the rotation of the rotating cylinder, further simplifying the adjustment process of the stapler; the opening and closing of the anvil can be controlled through the third drive assembly to ensure the normal use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a stapler that can be operated with one hand and is easy to turn, as proposed by the present invention;

[0022] Figure 2This is a schematic diagram of the main cross-sectional structure of a stapler that can be operated with one hand and is easy to turn, as proposed by the present invention;

[0023] Figure 3 A schematic diagram of the three-dimensional structure of the front end of a stapler that can be operated with one hand and is easy to turn, as proposed by the present invention;

[0024] Figure 4 A schematic cross-sectional structural diagram of the front end of a stapler that can be operated with one hand and is easy to turn, as proposed by the present invention;

[0025] Figure 5 A schematic diagram of the three-dimensional structure of the rear end of a stapler that can be operated with one hand and is easy to turn, as proposed by the present invention;

[0026] Figure 6 A schematic structural diagram of a first drive assembly of a stapler that can be operated with one hand and is easy to turn, as proposed by the present invention;

[0027] Figure 7 This is a schematic cross-sectional structural diagram of the rear end of a stapler that can be operated with one hand and is easy to steer, as proposed by the present invention.

[0028] In the figure: 101, stapler body; 102, staple cartridge; 103, staple anvil; 201, rotating cylinder; 301, mounting plate; 401, mounting cylinder; 402, first rotating shaft; 403, first gear; 404, rack; 405 driving tube; 406 driving plate; 501, driving rod; 502, guide wheel; 503, piston; 504, connecting block; 505, baffle; 506, infusion tube; 507, first push block; 508, spring; 601, annular cover; 602, mounting ring; 603, gear ring; 604, mounting shaft; 605, second gear; 606, first motor; 701, annular groove; 702, annular plate; 801, second motor; 802, lead screw nut pair; 803, push rod; 901, torque shaft; 902, driving handle; 903, push plate, 904 second push block, 905 second push block limit cylinder, 1001 control button, 1002 control knob. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-7 , a stapler that can be operated with one hand and is easy to turn, a stapler body 101, a stapler body 102 and a staple anvil 103 are arranged on the front side of the stapler body 101;

[0031] Also includes:

[0032] A rotating cylinder 201 is rotatably connected to the front side of the stapler body 101, a first driving assembly for driving the rotating cylinder 201 to rotate is arranged on the stapler body 101, a mounting disk 301 is arranged on the front side of the rotating cylinder 201, a steering mechanism for driving the mounting disk 3 to turn is arranged between the rotating cylinder 201 and the mounting disk 301, the nail magazine 102 and the nail anvil 103 are both located on the front side of the mounting disk 3, the nail anvil 103 is rotatably connected to the mounting disk 3, a second driving assembly for driving the steering mechanism to operate is arranged on the stapler body 101, a control button 1001 and a control knob 1002 are also arranged on the stapler body 101, the control button 1001 is electrically connected to the first driving assembly, and the control knob 1002 is electrically connected to the second driving assembly.

[0033] The steering mechanism includes a mounting cylinder 401, a first rotating shaft 402, a first gear 403, a rack 404, a driving tube 405 and a driving plate 406. Both sides of the mounting cylinder 401 are rotatably connected to the rotating cylinder 201 through the first rotating shaft 402. A first gear 403 is mounted on one of the first rotating shafts 402. The first gear 403 is meshed with the rack 404. The driving tube 405 is mounted inside the stapler body 101, and one end of the driving tube 405 extends to the outside of the rotating cylinder 201. The driving tube 405 can The drive tube 405 is able to move along the axis of the rotating cylinder 201. A drive plate 406 is installed at the end of the drive tube 405. The end of the rack 404 is fixedly connected to the drive plate 406. The drive tube 405 and the drive plate 406 are driven to move by the second drive assembly. After the drive plate 406 moves, the rack 404 follows the drive plate 406 to move, so that the first gear 403 rotates. After the first gear 403 rotates, the angle of the rotating cylinder 201 and the mounting disk 3 can be changed, thereby changing the angle of control of the nail magazine 103 and the nail anvil 102.

[0034] The second driving assembly includes a second motor 801, a screw nut pair 802 and a push rod 803. The screw nut pair 802 is installed inside the stapler body 101 and is arranged along the axis of the driving tube 405. The second motor 801 is fixedly connected to the shell of the stapler body 101 and is used to drive the screw nut pair 802 to operate. The screw nut pair 802 drives the driving tube 405 to move through the push rod 803. The control knob 1002 is provided with scale lines, and the number of rotations of the second motor 801 or the running distance of the screw nut pair 802 can be controlled through the scale, so as to accurately control the moving distance of the driving tube 405, and cooperate with the first gear 403 and the rack 404 to accurately control the steering angle of the nail magazine 103 and the nail anvil 102.

[0035] The first driving assembly includes an annular cover 601 fixed to the front end of the stapler body 101, the interior of the annular cover 601 is connected to a mounting ring 602 via a guide assembly, the mounting ring 602 is fixed to the outside of the rotating cylinder 2 in a sleeved state, a gear ring 603 is fixed to the front side of the mounting ring 602 in a centered state, a mounting shaft 604 is rotatably connected to the annular cover 601, a second gear 605 is fixed to one end of the mounting shaft 604, the second gear 605 and the gear ring 603 are meshed with each other, and a second motor 606 for driving the mounting shaft 604 is installed on the outside of the annular cover 601.

[0036] When the use angle of the nail magazine 102 and the nail anvil 103 needs to be steered and adjusted, the second motor 606 is used to drive the installation shaft 604 to rotate. During the rotation of the installation shaft 604, the second gear 605 is driven to rotate. During the rotation of the second gear 605, the mutual meshing transmission between the second gear 605 and the ring gear 603 drives the installation ring 602 to move. During the movement of the installation ring 602, the rotation guiding effect of the annular groove 701 and the annular plate 702 causes the installation ring 602 to rotate inside the annular cover 601 after being stressed. During the rotation of the installation ring 602, the rotating cylinder 201 is driven to rotate synchronously.

[0037] The guide assembly includes an annular groove 701 provided on the inner side of the annular cover 601 , an annular plate 702 is rotatably connected inside the annular groove 701 , and the annular plate 702 is sleeved and fixed on the outer side of the mounting ring 602 , and the cross-sections of the annular groove 701 and the annular plate 702 are T-shaped.

[0038] The third driving assembly for controlling the opening and closing of the nail anvil 103 is also included. The third driving assembly includes a driving rod 501, a piston 503, a connecting block 504, a baffle 505, an infusion tube 506, a first push block 507 and a spring 508. The driving rod 501 passes through the driving tube 405. The driving rod 501 is rotatably connected to the connecting block 504. The connecting block 504 is fixedly connected to one end of the piston 503. The piston 503 forms a sealing surface with the inner wall of the mounting cylinder 401. The baffle 505 is sealingly connected to the inner wall of the mounting cylinder 401. The area between the piston 503, the baffle 505 and the mounting cylinder 401 is filled with liquid. The liquid acts on the end surface of the first push block 507 through the infusion tube 506, and the nail anvil 103 is driven to close through the first push block 507. A spring 508 is installed between the nail anvil 103 and the inner wall of the mounting cylinder 401, and the nail anvil 103 is controlled to reset through the spring 508.

[0039] The stapler body 101 is equipped with a driving handle 902 via a torsion shaft 901 . A push plate 903 is fixed to one side of the driving handle 902 located inside the stapler body 101 . The push plate 903 is matched with a second push block 904 . The push plate 903 pushes the driving rod 501 to move via the second push block 904 .

[0040] After pressing the driving handle 902, the push plate 903 pushes the second push block 904 to move, and the second push block 904 pushes the driving rod 501 to move. After the driving rod 501 moves, it pushes the piston 503 to move. The piston squeezes the liquid between the piston 503, the baffle 505 and the installation cylinder 401, thereby pushing the first push block 507 to move. The first push block 507 pushes the anvil 103 to rotate. After releasing the driving handle 902, the spring 508 can push the anvil 103, so that the anvil 103 is reset.

[0041] The driving rod 501 and the connecting block 504 are rotationally connected via a rotating shaft, and the connecting block 504 is fixedly connected to one end of the piston 503. When the rotating cylinder 201 rotates, the piston 503 will rotate with the rotating cylinder 201. The rotational connection between the driving rod 501 and the connecting block 504 ensures that the driving rod 501 can push the piston 503 normally.

[0042] A second push block limiting cylinder 905 is installed inside the stapler body 101, so that the second push block 904 moves along the axis of the driving rod 501. A guide wheel 502 is installed on the driving rod 501, and the end of the guide wheel 502 contacts the inner wall of the driving tube 405. The setting of the second push block limiting cylinder 905 and the guide wheel 502 can make the driving rod 501 move along the axis of the rotating cylinder 201 as much as possible.

[0043] The stapler proposed in the present invention can control the second drive component by controlling the knob 1002, and drive the steering mechanism by the second drive component to achieve rapid adjustment of the use angle of the stapler 102 and the stapler anvil 103. During the adjustment process, the stapler will not shake, and the stapler head is not likely to cause damage to human tissue, so it is suitable for one-handed operation.

[0044] The stapler proposed in the present invention can control the first drive component through the control button 1001, and the control button 1001 is located on the drive handle 902 to realize the rotation of the rotating cylinder 201, further simplifying the adjustment process of the stapler; through the third drive component, the opening and closing of the anvil 103 can be controlled to ensure that the device can be used normally.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stapler that can be operated with one hand and is easy to turn, comprising a stapler body (101), wherein a stapler magazine (102) and a staple anvil (103) are arranged on the front side of the stapler body (101); It is characterized in that Also includes: A rotating cylinder (201) is rotatably connected to the front side of the stapler body (101); a first driving assembly for driving the rotating cylinder (201) to rotate is arranged on the stapler body (101); a mounting plate (301) is arranged on the front side of the rotating cylinder (201); a steering mechanism for driving the mounting plate (3) to turn is arranged between the rotating cylinder (201) and the mounting plate (301); the stapler magazine (102) and the nail anvil (103) are both located on the front side of the mounting plate (3); the nail anvil (103) is rotatably connected to the mounting plate (3); a second driving assembly for driving the steering mechanism to operate is arranged on the stapler body (101); a control button (1001) and a control knob (1002) are also arranged on the stapler body (101); the control button (1001) is electrically connected to the first driving assembly; and the control knob (1002) is electrically connected to the second driving assembly.

2. The one-hand-operable and easy-to-steer stapler according to claim 1, characterized in that: The steering mechanism comprises a mounting tube (401), a first rotating shaft (402), a first gear (403), a rack (404), a driving tube (405) and a driving plate (406). Both sides of the mounting tube (401) are rotatably connected to the rotating tube (201) via the first rotating shaft (402). A first gear (403) is mounted on one of the first rotating shafts (402). The first gear (403) is meshed with the rack (404). The driving tube (405) is mounted inside the stapler body (101), and one end of the driving tube (405) extends to the outside of the rotating tube (201). The driving tube (405) can move along the axis of the rotating tube (201). A driving plate (406) is mounted at the end of the driving tube (405). The end of the rack (404) is fixedly connected to the driving plate (406). The driving tube (405) and the driving plate (406) are driven to move via a second driving assembly.

3. The one-hand-operable and easy-to-steer stapler according to claim 2, characterized in that: The second driving assembly comprises a second motor (801), a screw nut pair (802) and a push rod (803); the screw nut pair (802) is installed inside the stapler body (101) and is arranged along the axis of the driving tube (405); the second motor (801) is fixedly connected to the shell of the stapler body (101) and is used to drive the screw nut pair (802) to operate; the screw nut pair (802) drives the driving tube (405) to move via the push rod (803).

4. The one-hand operable and easily steerable stapler according to claim 3, characterized in that: The first driving assembly comprises an annular cover (601) fixed to the front end of the stapler body (101); the interior of the annular cover (601) is connected to a mounting ring (602) via a guide assembly; the mounting ring (602) is fixed to the outside of the rotating cylinder (2) in a sleeved state; a gear ring (603) is fixed to the front side of the mounting ring (602) in a centered state; a mounting shaft (604) is rotatably connected to the annular cover (601); a second gear (605) is fixed to one end of the mounting shaft (604); the second gear (605) and the gear ring (603) are meshed with each other; a second motor (606) for driving the mounting shaft (604) is installed on the outside of the annular cover (601).

5. The one-hand-operable and easily-steerable stapler according to claim 4, characterized in that: The guide assembly comprises an annular groove (701) provided on the inner side of the annular cover (601), an annular plate (702) being rotatably connected inside the annular groove (701), the annular plate (702) being sleeved and fixed on the outer side of the mounting ring (602), and the cross-sections of the annular groove (701) and the annular plate (702) being T-shaped.

6. The one-hand-operable and easily-steerable stapler according to claim 5, characterized in that: The device also includes a third driving assembly for controlling the opening and closing of the nail anvil (103), the third driving assembly including a driving rod (501), a piston (503), a connecting block (504), a baffle (505), an infusion tube (506), a first push block (507) and a spring (508), the driving rod (501) passes through the driving tube (405), the driving rod (501) is rotatably connected to the connecting block (504), the connecting block (504) is fixedly connected to one end of the piston (503), and the piston (503) is connected to the mounting cylinder (406). 1) forms a sealing surface, the baffle (505) is sealedly connected to the inner wall of the mounting cylinder (401), the area between the piston (503), the baffle (505) and the mounting cylinder (401) is filled with liquid, the liquid acts on the end surface of the first push block (507) through the infusion tube (506), and the nail anvil (103) is driven to close through the first push block (507), and a spring (508) is installed between the nail anvil (103) and the inner wall of the mounting cylinder (401), and the nail anvil (103) is controlled to reset through the spring (508).

7. The one-hand operable and easily steerable stapler according to claim 6, characterized in that: The stapler body (101) is equipped with a driving handle (902) via a torque shaft (901); a push plate (903) is fixed to one side of the driving handle (902) located inside the stapler body (101); the push plate (903) is matched with the second push block (904); the push plate (903) pushes the driving rod (501) to move via the second push block (904).

8. The one-hand operable and easily steerable stapler according to claim 7, characterized in that: A second push block limiting cylinder (905) is installed inside the stapler body (101), so that the second push block (904) moves along the axis of the driving rod (501). A guide wheel (502) is installed on the driving rod (501), and the end of the guide wheel (502) contacts the inner wall of the driving tube (405).

9. A single-hand operable and easily steerable stapler according to any one of claims 1 to 8, characterized in that: The control knob (1002) is provided with scale lines.

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