CN103271751A - Straight line cutting stitching instrument under endoscope and safety device thereof - Google Patents

Abstract

The invention provides a safety device for a linear cutting stapler under an endoscope, which includes a fixed handle and a movable handle, and also includes a safety slider installed on the fixed handle, a safety spring connected with the safety slider, and a safety device. A handle spring on the movable handle and one end capable of abutting against the top end of the safety slider, a blocking member is arranged on the movable handle, and a safety button is arranged on the safety slider. The endoscopic linear cutting stapler provided by the present invention is equipped with a safety device, and the staff needs to open the safety button to use the device during operation, and it will automatically reset after use, avoiding false triggering of the suture assembly and improving the Utilization rate of suturing components of endoscopic linear cutting stapler.

Description

Laparoscopic linear cutting stapler and its safety device

technical field

The invention relates to the technical field of medical instruments, in particular to a safety device for a linear cutting stapler under an endoscope. The present invention also relates to an endoscopic linear cutting stapler comprising the safety device.

Background technique

During the operation of minimally invasive surgery, a surgical stapler is usually used to connect adjacent parts of the tissue. At present, the commonly used endoscopic linear cutting stapler is in the form of a cutting knife on the surgical fastening device. The staple cartridges move linearly, so as to achieve the purpose of cutting and sealing the sutured tissue when the surgical suturing device is sutured.

The handle of a typical endoscopic linear cutting stapler is divided into a movable handle and a fixed handle. By gripping the movable handle, the transmission part is moved to trigger the suturing assembly. Cause misfiring, cause the suture assembly to be scrapped before use, and the utilization rate of the suture assembly is low.

Therefore, how to improve the utilization rate of the suturing components of the linear cutting stapler under the endoscope is a technical problem to be solved by those skilled in the art.

Contents of the invention

The purpose of the present invention is to provide a safety device for a linear cutting stapler under an endoscope, and the utilization rate of the suturing components of the linear cutting stapler under an endoscope is relatively high. Another object of the present invention is to provide an endoscopic linear cutting stapler including the above-mentioned safety device.

In order to achieve the above object, the present invention provides a safety device for a linear cutting stapler under an endoscope, which includes a fixed handle and a movable handle, and also includes a safety slider installed on the fixed handle, connected with the safety slider The safety spring is installed on the movable handle and the handle spring is capable of abutting against the top end of the safety slider. The movable handle is provided with a blocking member, and the safety slider is provided with a safety button.

Preferably, the shape of the blocking member is square.

Preferably, the stopper is an arc-shaped stopper.

Preferably, the bottom surface of the arc-shaped blocking member is provided with a groove.

Preferably, the safety slider is provided with a handle spring slot.

Preferably, the bottom of the safety slider is provided with a protrusion, and the protrusion can be sleeved in the safety spring.

Preferably, the safety buttons are provided on both sides of the safety slider.

Preferably, the ends of the handle springs are rounded.

Preferably, the top of the safety slider is provided with a slope.

The present invention also provides an endoscopic linear cutting and suturing device, which includes a device body and a safety device installed on the device body, and the safety device is the safety device described in any one of the above.

The safety device of the endoscopic linear cutting and suturing device provided by the present invention includes a fixed handle, a movable handle, a safety slider, a safety spring and a handle spring, the safety slider is installed on the fixed handle, the safety spring is connected with the safety slider, and the handle The spring is installed on the movable handle and one end can be offset against the top of the safety slider, the movable handle is provided with a blocking piece, and the safety slider is provided with a safety button.

In the initial state of the linear cutting stapler under the endoscope, the blocking piece and the handle spring are respectively located on both sides of the safety slider. Moving downward, the handle spring rotates under its own action, and one end of the handle spring is offset against the top of the safety slider, thereby blocking the safety slider. When the slide block, the handle spring and the safety slide block break away from the moment, the lower surface of the stopper is offset against the safety slide block, so that the safety slide block cannot move upwards, and the movable handle can continue to rotate to the end to complete the percussion. Loosen the movable handle, and the movable handle will rebound under the action of the handle spring. When the safety slider is separated from the blocking part of the movable handle, the safety slider will bounce upward under the action of the safety spring, so that the blocking part and the handle spring respectively Located on both sides of the safety slider, so as to return to the initial state.

From the above description, it can be seen that, compared with the background technology, the endoscopic linear cutting stapler provided by the present invention is equipped with a safety device. During operation, the staff needs to open the safety button to use the instrument, and it will automatically reset after use. Misfiring of the suturing components is avoided, and the utilization rate of the suturing components of the linear cutting stapler under the endoscope is improved.

Description of drawings

FIG. 1 is a schematic structural view of the initial state of the endoscopic linear cutting stapler provided by the embodiment of the present invention;

Fig. 2 is a schematic structural view of the unsafe state of the endoscopic linear cutting stapler provided by the embodiment of the present invention;

3 is a schematic structural view of the firing state of the endoscopic linear cutting stapler provided by the embodiment of the present invention;

Fig. 4 is a schematic structural diagram of the recovery state of the endoscopic linear cutting stapler provided by the embodiment of the present invention;

Fig. 5 is a structural schematic diagram of the movable handle of the endoscopic linear cutting stapler shown in Fig. 1;

Fig. 6 is a schematic structural view of the handle spring of the endoscopic linear cutting stapler shown in Fig. 1;

Fig. 7 is a structural schematic diagram of the safety slider of the endoscopic linear cutting stapler shown in Fig. 1;

Fig. 8 is a structural schematic diagram of the safety spring of the endoscopic linear cutting stapler shown in Fig. 1;

Fig. 9 is a schematic structural view of the safety button of the endoscopic linear cutting stapler provided by the present invention.

Detailed ways

The core of the present invention is to provide a safety device for an endoscopic linear cutting stapler, and the utilization rate of the suturing components of the endoscopic linear cutting stapler is relatively high. Another core of the present invention is to provide an endoscopic linear cutting stapler including the above-mentioned safety device.

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Fig. 1-Fig. 9, in a specific embodiment, the safety device of the endoscopic linear cutting stapler provided by the embodiment of the present invention includes a fixed handle 1, a movable handle 2, a safety slider 11, and a safety spring 12 And the handle spring 22, the safety slider 11 is installed on the fixed handle 1, the safety spring 12 is connected with the safety slider 11, the handle spring 22 is installed on the movable handle 2 and one end can be offset against the top of the safety slider 11, the movable handle 2 A blocking member 21 is arranged on the top, and a safety button 13 is arranged on the safety slider 11 .

In the initial state of the linear cutting stapler under the endoscope, the blocking member 21 and the handle spring 22 are respectively located on both sides of the safety slider 11, and the safety slider 11 is offset against the front end of the blocking member 21, so that the movable handle 2 cannot be closed. The button 13 makes the safety slider 11 move downward, the handle spring 22 rotates under its own action, and one end of the handle spring 22 is against the top of the safety slider 11, thereby blocking the safety slider 11. At this time, the movable handle 2 can Turn, hold the movable handle 2, the handle spring 22 rotates so as to break away from the safety slider 11, the moment the handle spring 22 and the safety slider 11 are separated, the lower surface of the blocking member 21 is offset against the safety slider 11, so that the safety slider 11 cannot go upward After moving, the movable handle 2 can continue to rotate to the end, and the linear cutting stapler under the endoscope is fired. Loosen the movable handle 2, the movable handle 2 rebounds under the action of the handle spring 22, when the safety slider 11 is separated from the stopper 21 of the movable handle 2, the safety slider 11 bounces upward under the action of the safety spring 12 , so that the blocking member 21 and the handle spring 22 are respectively located on both sides of the safety slider 11, thereby returning to the initial state. The endoscopic linear cutting stapler provided by the embodiment of the present invention is equipped with a safety device, and the staff needs to open the safety button 13 to use the device during operation, and it will automatically reset after use, avoiding false triggering of the suture assembly , improving the utilization rate of the suturing components of the linear cutting stapler under the endoscope. The above-mentioned blocking piece can be cylindrical, and the above-mentioned blocking piece can also be square.

In addition, the blocking piece 21 of the safety device is an arc-shaped blocking piece. The movable handle 2 moves in a circular arc around the linear cutting stapler under the endoscope, and the arc-shaped blocking member can ensure that it is tangent to the safety slider 11, and ensures that the force of the safety slider 11 is stable, so that the linear cutting stapler under the endoscope can It is more stable in use.

In addition, grooves are provided on the bottom surface of the arc-shaped blocking member. The groove provided on the bottom surface of the arc-shaped stopper can make the contact area between the bottom surface of the arc-shaped stopper and the safety slider 11 smaller, reduce the wear of the arc-shaped stopper, and prolong the life of the arc-shaped stopper.

Further, the safety slider 11 is provided with a handle spring slot 112 . The handle spring slot 112 can ensure that the handle spring 22 remains stable when moving relative to the safety slider 11 , preventing the handle spring 22 from slipping off the safety slider 11 laterally.

Furthermore, the bottom of the safety slider 11 is provided with a protrusion 111 , and the protrusion 111 can be sleeved in the safety spring 12 . The safety spring 12 is installed on the protrusion 111, so that the safety spring 12 is not easy to be skewed, and the movement of the safety spring 12 is relatively stable.

Preferably, safety buttons 13 are provided on both sides of the safety slider 11 . When the safety button 13 is pulled, since the safety buttons 13 are arranged on both sides of the safety slider 11 , the force of the safety slider 11 is balanced, and the safety slider 11 is not easy to be damaged.

More preferably, the end of the handle spring 22 is rounded. After opening the safety button 13, one end of the handle spring 22 is against the top of the safety slider 11, and then the movable handle 2 is rotated, and the handle spring 22 moves away from the top of the safety slider 11. When the end of the handle spring 22 is rounded, the end of the handle spring 22 is smoother, and the handle spring 22 is easier to remove the safety slider 11 .

In addition, a slope 113 is provided on the top of the safety slider 11 . The slope 113 provided on the top of the safety slider 11 makes the area of the top of the safety slider 11 smaller, so that the safety slider 11 is more likely to block the stopper 21 when the linear cutting stapler under the endoscope is in the recovery state.

The endoscopic linear cutting and suturing device provided by the embodiment of the present invention includes a device body and the above-mentioned safety device installed on the device body. The structure of other parts can refer to the existing technology, and will not be repeated here.

The linear cutting stapler under the endoscope provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

1. A safety device for a linear cutting stapler under an endoscope, comprising a fixed handle (1) and a movable handle (2), characterized in that it also includes a safety slider (11) mounted on the fixed handle (1) ), the safety spring (12) connected with the safety slider (11) and the handle spring (22) which is installed on the movable handle (2) and one end can be against the top of the safety slider (11) , the movable handle (2) is provided with a blocking piece (21), and the safety slider (11) is provided with a safety button (13). 2. The safety device according to claim 1, characterized in that, the shape of the blocking member (21) is square. 3. The safety device according to claim 1, characterized in that, the stopper (21) is an arc-shaped stopper. 4. The safety device according to claim 3, wherein a groove is provided on the bottom surface of the arc-shaped blocking member. 5. The safety device according to claim 1, characterized in that, the safety slider (11) is provided with a handle spring locking slot (112). 6. The safety device according to claim 1, characterized in that, the bottom of the safety slider (11) is provided with a protrusion (111), and the protrusion (111) can be sleeved on the safety spring ( 12) inside. 7. The safety device according to claim 1, characterized in that, the safety buttons (13) are provided on both sides of the safety slider (11). 8. The safety device according to claim 1, characterized in that, the end of the handle spring (22) is rounded. 9. The safety device according to any one of claims 1-8, characterized in that, the top of the safety slider (11) is provided with a slope (113). 10. An endoscopic linear cutting stapler, comprising a body and a safety device mounted on the body, characterized in that the safety device is the safety device described in any one of 1-9.

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