Jaw clamping and closing device of endoscope anastomat

Abstract

The embodiment of the utility model provides a jaw clamping and closing device of an endoscope anastomat, and relates to the field of medical instruments. The jaw clamping and closing device of the endoscope anastomat comprises a jaw assembly, a transmission assembly, a power piece and an adjusting knob, the transmission assembly is connected with the jaw assembly, the power piece is connected with the transmission assembly, the adjusting knob is connected with the power piece, and the adjusting knob is used for adjusting driving force output by the power piece, so that the moving distance of the transmission assembly is adjusted; and further, the clamping force of the jaw assembly is adjusted. When the jaw clamping and closing device of the endoscope anastomat is used, the transmission assembly is connected with the jaw assembly, the power piece is connected with the transmission assembly, the adjusting knob is connected with the power piece, the power piece can drive the transmission assembly to move, and the adjusting knob can adjust driving force output by the power piece, so that the moving distance of the transmission assembly is adjusted; and the clamping force of the jaw assembly is adjusted, so that the endoscope anastomat can clamp tissues with different resistances, and the endoscope anastomat is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a jaw clamping device for a laparoscope stapler. Background Art

[0002] Laparoscopic staplers are mainly used in the field of minimally invasive surgery. According to the different power transmission methods, they are divided into manual laparoscopic staplers and electric laparoscopic staplers. The advantages of electric laparoscopic staplers are simple operation, labor-saving and efficient operation, and smooth and stable cutting process.

[0003] The laparoscopic stapler in the prior art has a technical problem that the clamping force cannot be adjusted because the clamping force is fixed. Utility Model Content

[0004] The utility model provides a laparoscopic stapler jaw clamping device, which can adjust the clamping force of the laparoscopic stapler, so that the laparoscopic stapler can adapt to more different application scenarios and is more convenient to use.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] The embodiment of the utility model provides a laparoscopic stapler jaw clamping device, which comprises:

[0007] Jaw assembly;

[0008] A transmission assembly, the transmission assembly is connected to the jaw assembly;

[0009] A power member, the power member is connected to the transmission assembly;

[0010] An adjusting knob is connected to the power member, and the adjusting knob is used to adjust the driving force output by the power member, thereby adjusting the moving distance of the transmission assembly, and further adjusting the clamping force of the jaw assembly.

[0011] Optionally, the power component includes a stepper motor and a cam, the cam is connected to the transmission assembly, the cam is connected to the stepper motor, the stepper motor is connected to the adjusting knob, and the adjusting knob is used to adjust the number of steps of the stepper motor, thereby adjusting the rotation angle of the cam, and then adjusting the moving distance of the transmission assembly.

[0012] Optionally, the cam is an irregular circular structure.

[0013] Optionally, the adjusting knob includes a button and a control module, the button is connected to the control module, and the control module is connected to the stepping motor.

[0014] Optionally, the transmission assembly includes a sleeve and an elastic member, wherein the elastic member is arranged on the sleeve, one end of the sleeve is slidably connected to the jaw assembly, and the other end of the sleeve is connected to the cam, and when the cam follows the rotation of the stepper motor, the cam drives the sleeve to move, so that the sleeve slides along the jaw assembly, thereby changing the clamping force of the jaw assembly.

[0015] Optionally, the elastic member is a spring, the spring is sleeved on the sleeve, and the spring is used to drive the sleeve to reset.

[0016] Optionally, the transmission assembly further comprises a sleeve fixing seat, the sleeve fixing seat is arranged at an end of the sleeve close to the power member, and the sleeve fixing seat is connected to the power member.

[0017] Optionally, the jaw assembly includes a dowel seat and a connecting portion, the connecting portion is connected to the transmission assembly, and the dowel seat is connected to the connecting portion.

[0018] Optionally, the connecting portion includes a connecting plate and a steering sleeve, the connecting plate is connected to the transmission assembly, the connecting plate is connected to the steering sleeve, the steering sleeve and the pin seat are slidably connected, and the steering sleeve is used to slide along the pin seat driven by the sleeve, thereby adjusting the clamping force.

[0019] Optionally, the laparoscopic stapler jaw clamping device further comprises a hand-held portion, and the hand-held portion is connected to the power member.

[0020] The beneficial effects of the laparoscopic stapler jaw clamping device of the utility model embodiment include, for example:

[0021] The jaw clamping device of the laparoscopic stapler includes a jaw assembly, a transmission assembly, a power piece, and an adjusting knob. The transmission assembly is connected to the jaw assembly, the power piece is connected to the transmission assembly, and the adjusting knob is connected to the power piece. The adjusting knob is used to adjust the driving force output by the power piece, thereby adjusting the moving distance of the transmission assembly, and further adjusting the clamping force of the jaw assembly. When the jaw clamping device of the laparoscopic stapler is in use, the transmission assembly is connected to the jaw assembly, the power piece is connected to the transmission assembly, and the adjusting knob is connected to the power piece. The power piece can drive the transmission assembly to move. Since the adjusting knob can adjust the driving force output by the power piece, thereby adjusting the moving distance of the transmission assembly, and further adjusting the clamping force of the jaw assembly, the laparoscopic stapler can clamp tissues with different resistances, which is more convenient to use and has a wider range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of the laparoscopic stapler jaw clamping device provided in this embodiment;

[0024] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0025] Figure 3 A schematic diagram of the structure of the power member provided in this embodiment;

[0026] Figure 4 for Figure 1 A partial enlarged view of area B.

[0027] Icons: 10-jaw assembly; 11-anvil; 12-connecting part; 121-connecting plate; 122-steering sleeve; 20-transmission assembly; 21-sleeve; 22-elastic member; 23-sleeve fixing seat; 30-power member; 31-stepping motor; 32-cam; 100-laparoscopic stapler jaw clamping device. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0032] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0033] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0034] Laparoscopic staplers are mainly used in the field of minimally invasive surgery. According to the different power transmission methods, they are divided into manual laparoscopic staplers and electric laparoscopic staplers. The advantages of electric laparoscopic staplers are simple operation, labor-saving and efficient operation, and smooth and stable cutting process.

[0035] The laparoscopic stapler in the related art has a technical problem that the clamping force cannot be adjusted because the clamping force is fixed.

[0036] Please refer to Figure 1-Figure 4 The present embodiment provides a laparoscopic stapler jaw clamping device 100, which can effectively improve the above-mentioned technical problems, and can adjust the clamping force of the laparoscopic stapler, so that the laparoscopic stapler can adapt to more different application scenarios and is more convenient to use.

[0037] Please refer to Figure 1-Figure 4 The laparoscopic stapler jaw clamping device 100 includes a jaw assembly 10, a transmission assembly 20, a power piece 30 and an adjusting knob. The transmission assembly 20 is connected to the jaw assembly 10, the power piece 30 is connected to the transmission assembly 20, and the adjusting knob is connected to the power piece 30. The adjusting knob is used to adjust the driving force output by the power piece 30, thereby adjusting the moving distance of the transmission assembly 20, and further adjusting the clamping force of the jaw assembly 10.

[0038] It should be noted that most of the electric laparoscopic staplers in the prior art can be divided into two types. One type of laparoscopic stapler achieves the purpose of locking the jaws by closing the trigger and the self-locking of the mechanical structure handle; the other type of laparoscopic stapler drives the cutting knife forward through the rack and presses the nail holder to achieve the closure of the jaws. When the laparoscopic stapler is anastomosing, the jaws will first be closed to pre-compress the tissue. The clamping force of the two types of laparoscopic staplers in the prior art is fixed, and the size of the clamping force cannot be adjusted. Since the tissue itself has resistance, the jaws are prone to jamming when encountering greater resistance. Therefore, the laparoscopic staplers in the prior art are difficult to meet the effect of fully squeezing different tissues. In order to solve this technical problem, when the laparoscopic stapler jaw clamping device 100 provided in this embodiment is in use, the transmission assembly 20 is connected to the jaw assembly 10, the power piece 30 is connected to the transmission assembly 20, and the adjustment knob is connected to the power piece 30. The power piece 30 can drive the transmission assembly 20 to move. Since the adjustment knob can adjust the driving force output by the power piece 30, the moving distance of the transmission assembly 20 is adjusted, and then the clamping force of the jaw assembly 10 is adjusted, so that the laparoscopic stapler can clamp tissues with different resistance sizes, thereby meeting the full squeezing of different tissues.

[0039] Specifically, the adjustment knob includes a button and a control module, the button is connected to the control module, and the control module is connected to the power member 30. After receiving the gear position signal of the button, the control module controls the power member 30 to move to the corresponding gear position, thereby driving the transmission assembly 20 to move to the distance of the corresponding gear position, and applying the clamping force of the corresponding gear position to the jaw assembly 10 through the transmission assembly 20.

[0040] In this embodiment, the power member 30 includes a stepper motor 31 and a cam 32. The cam 32 is connected to the transmission assembly 20, the cam 32 is connected to the stepper motor 31, and the stepper motor 31 is connected to the button. The stepper motor 31 is used to rotate under the adjustment of the adjustment knob, thereby driving the cam 32 to rotate. In different gears, the number of steps of the stepper motor 31 is different, so that the rotation angle of the cam 32 is different, and then the driving force applied by the transmission assembly 20 to the jaw assembly 10 is different, so as to adjust the clamping force of the jaw assembly 10.

[0041] It should be noted that the cam 32 is an irregular circular structure. In the present embodiment, the cam 32 is specifically an elliptical structure. When the straight line where the short axis of the cam 32 is located is consistent with the moving direction of the transmission assembly 20, the clamping force of the jaw assembly 10 is the smallest. During the process of the stepper motor 31 and the cam 32 rotating, the shaft diameter of the cam 32 gradually increases, thereby pushing the transmission assembly 20 forward and increasing the clamping force of the jaw assembly 10. When the straight line where the long axis of the cam 32 is located is consistent with the moving direction of the transmission assembly 20, the clamping force of the jaw assembly 10 is the largest.

[0042] In this embodiment, the adjustment knob has three gears, including the first gear, the second gear and the third gear, and the clamping forces corresponding to the first gear, the second gear and the third gear gradually increase. In other embodiments, the clamping forces corresponding to the first gear, the second gear and the third gear may gradually decrease, or the clamping forces corresponding to the first gear, the second gear and the third gear may be different in magnitude, which is not specifically limited here.

[0043] It should also be explained that the transmission assembly 20 includes a sleeve 21 and an elastic member 22. The elastic member 22 is disposed on the sleeve 21. One end of the sleeve 21 is slidably connected to the jaw assembly 10. The other end of the sleeve 21 is connected to the cam 32. When the cam 32 rotates following the stepping motor 31, the cam 32 drives the sleeve 21 to move, so that the sleeve 21 slides along the jaw assembly 10, thereby changing the clamping force of the jaw assembly 10. Among them, the end of the sleeve 21 is connected to the cam 32, and the cam 32 rotates under the drive of the stepping motor 31, thereby pushing the sleeve 21 forward to increase the clamping force.

[0044] In this embodiment, the sleeve 21 is a long bar. The elastic member 22 is a spring, which is sleeved on the end of the sleeve 21 near the cam 32. The sleeve 21 will squeeze the elastic member 22 during the process of moving forward. When the power member 30 stops, the sleeve 21 can be reset under the elastic force of the elastic member 22.

[0045] Furthermore, the transmission assembly 20 further includes a sleeve fixing seat 23 . The sleeve fixing seat 23 is disposed at the end of the sleeve 21 close to the power member 30 , and the sleeve fixing seat 23 is connected to the power member 30 .

[0046] It should also be explained that the jaw assembly 10 includes an anvil 11 and a connecting portion 12, the connecting portion 12 is connected to the transmission assembly 20, and the anvil 11 is connected to the connecting portion 12. A nail magazine base is provided on the anvil 11.

[0047] Specifically, the connecting portion 12 includes a connecting piece 121 and a steering sleeve 122, the connecting piece 121 is connected to the transmission assembly 20, the connecting piece 121 is connected to the steering sleeve 122, the steering sleeve 122 is slidably connected to the anvil 11, and the steering sleeve 122 is used to slide along the anvil 11 driven by the sleeve 21, so that the anvil 11 is clamped, thereby adjusting the clamping force. In the process of moving forward, the sleeve 21 will continue to squeeze the outside of the anvil 11, so that the anvil 11 continues to clamp, thereby increasing the clamping force.

[0048] Furthermore, the steering sleeve 122 and the anvil seat 11 are detachably connected, and specifically can be snap-connected.

[0049] Furthermore, the laparoscopic stapler jaw clamping device 100 further includes a handheld portion, which is connected to the power member 30. The handheld portion is a cylindrical structure, and the handheld portion and the sleeve 21 are vertically arranged, which is convenient for handholding, more convenient for operation, and more convenient for taking.

[0050] When working, first select the gear by adjusting the knob, and the control module drives the stepper motor 31 to step according to the selected gear, thereby driving the cam 32 to rotate to the angle of the corresponding gear. During the rotation of the cam 32, the sleeve fixing seat 23 will be pushed to compress the elastic member 22, and drive the sleeve 21 forward. During the forward movement, the sleeve 21 will continue to squeeze the outside of the dowel seat 11, so that the dowel seat 11 is clamped, thereby increasing the clamping force; when the clamping force is insufficient, select a gear with stronger clamping force by adjusting the knob, and the stepper motor 31 continues to step, thereby driving the cam 32 to continue to rotate, so that the sleeve 21 continues to move forward and squeeze the outside of the dowel seat 11, and the dowel seat 11 continues to clamp, thereby increasing the clamping force.

[0051] The laparoscopic stapler jaw clamping device 100 provided in this embodiment has at least the following advantages:

[0052] Most of the electric laparoscopic staplers in the prior art can be divided into two types. One type of laparoscopic stapler achieves the purpose of locking the jaws by closing the trigger and the self-locking of the mechanical structure handle; the other type of laparoscopic stapler drives the cutting knife forward through the rack and presses the nail holder to achieve the closing of the jaws. When the laparoscopic stapler is anastomosing, the jaws will first be closed to pre-compress the tissue. The clamping force of the two types of laparoscopic staplers in the prior art is fixed, and the magnitude of the clamping force cannot be adjusted. Since the tissue itself has resistance, the jaws are prone to jamming when encountering greater resistance. Therefore, the laparoscopic staplers in the prior art are difficult to meet the effect of fully squeezing different tissues. In order to solve this technical problem, when the laparoscopic stapler jaw clamping device 100 provided in this embodiment is in use, the transmission assembly 20 is connected to the jaw assembly 10, the power piece 30 is connected to the transmission assembly 20, and the adjustment knob is connected to the power piece 30. The power piece 30 can drive the transmission assembly 20 to move. Since the adjustment knob can adjust the driving force output by the power piece 30, the moving distance of the transmission assembly 20 is adjusted, and then the clamping force of the jaw assembly 10 is adjusted, so that the laparoscopic stapler can clamp tissues with different resistance sizes, thereby meeting the full squeezing of different tissues.

[0053] In summary, an embodiment of the utility model provides a laparoscopic stapler jaw clamping device 100, which includes a jaw assembly 10, a transmission assembly 20, a power piece 30 and an adjusting knob. The transmission assembly 20 is connected to the jaw assembly 10, the power piece 30 is connected to the transmission assembly 20, and the adjusting knob is connected to the power piece 30. The adjusting knob is used to adjust the driving force output by the power piece 30, thereby adjusting the moving distance of the transmission assembly 20, and then adjusting the clamping force of the jaw assembly 10. When the laparoscopic stapler jaw clamping device 100 is in use, the transmission assembly 20 is connected to the jaw assembly 10, the power piece 30 is connected to the transmission assembly 20, and the adjustment knob is connected to the power piece 30. The power piece 30 can drive the transmission assembly 20 to move. Since the adjustment knob can adjust the driving force output by the power piece 30, the moving distance of the transmission assembly 20 is adjusted, and then the clamping force of the jaw assembly 10 is adjusted, so that the laparoscopic stapler can clamp tissues with different resistance sizes, which is more convenient to use and has a wider range of application scenarios.

[0054] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A laparoscopic stapler jaw clamping device, characterized in that: include: Jaw assembly (10); A transmission assembly (20), wherein the transmission assembly (20) is connected to the jaw assembly (10); A power member (30), the power member (30) being connected to the transmission assembly (20); An adjusting knob is connected to the power member (30), and the adjusting knob is used to adjust the driving force output by the power member (30), thereby adjusting the moving distance of the transmission assembly (20), and further adjusting the clamping force of the jaw assembly (10).

2. The laparoscopic stapler jaw clamping device according to claim 1, characterized in that: The power member (30) comprises a stepper motor (31) and a cam (32); the cam (32) is connected to the transmission assembly (20); the cam (32) is connected to the stepper motor (31); the stepper motor (31) is connected to the adjusting knob; the adjusting knob is used to adjust the number of steps of the stepper motor (31), thereby adjusting the rotation angle of the cam (32), and further adjusting the moving distance of the transmission assembly (20).

3. The laparoscopic stapler jaw clamping device according to claim 2, characterized in that: The cam (32) is an irregular circular structure.

4. The laparoscopic stapler jaw clamping device according to claim 2, characterized in that: The adjusting knob comprises a button and a control module, the button is connected to the control module, and the control module is connected to the stepping motor (31).

5. The laparoscopic stapler jaw clamping device according to claim 4, characterized in that: The transmission assembly (20) comprises a sleeve (21) and an elastic member (22), wherein the elastic member (22) is arranged on the sleeve (21), one end of the sleeve (21) is slidably connected to the jaw assembly (10), and the other end of the sleeve (21) is connected to the cam (32), and when the cam (32) follows the rotation of the stepping motor (31), the cam (32) drives the sleeve (21) to move, so that the sleeve (21) slides along the jaw assembly (10), thereby changing the clamping force of the jaw assembly (10).

6. The laparoscopic stapler jaw clamping device according to claim 5, characterized in that: The elastic member (22) is a spring, the spring is sleeved on the sleeve (21), and the spring is used to drive the sleeve (21) to reset.

7. The laparoscopic stapler jaw clamping device according to claim 5, characterized in that: The transmission assembly (20) further comprises a sleeve fixing seat (23), wherein the sleeve fixing seat (23) is arranged at an end of the sleeve (21) close to the power member (30), and the sleeve fixing seat (23) is connected to the power member (30).

8. The laparoscopic stapler jaw clamping device according to claim 5, characterized in that: The jaw assembly (10) comprises a pintle seat (11) and a connecting portion (12), wherein the connecting portion (12) is connected to the transmission assembly (20), and the pintle seat (11) is connected to the connecting portion (12).

9. The laparoscopic stapler jaw clamping device according to claim 8, characterized in that: The connecting portion (12) comprises a connecting piece (121) and a steering sleeve (122), wherein the connecting piece (121) is connected to the transmission assembly (20), the connecting piece (121) is connected to the steering sleeve (122), the steering sleeve (122) is slidably connected to the anvil seat (11), and the steering sleeve (122) is used to slide along the anvil seat (11) driven by the sleeve (21), thereby adjusting the clamping force.

10. The laparoscopic stapler jaw clamping device according to claim 1, characterized in that: The laparoscope stapler jaw clamping device (100) further comprises a hand-held portion, wherein the hand-held portion is connected to the power member (30).

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