CN111870293A

CN111870293A - Pneumatic endoscope anastomat

Info

Publication number: CN111870293A
Application number: CN202010826532.6A
Authority: CN
Inventors: 刘成
Original assignee: Jiangsu Yuezhong Medical Technology Co ltd
Current assignee: Jiangsu Yuezhong Medical Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2020-11-03

Abstract

The invention relates to a pneumatic endoscope anastomat, which comprises: an execution head for cutting and stapling soft tissue; a cylinder having a drive end coupled to the actuation head; a manual control valve connected to the cylinder for switching a flow direction of the air flow communicated into the cylinder; and the control wrench is arranged corresponding to the manual control valve and is used for controlling the manual control valve. Due to the fact that the actuating head, the air cylinder, the manual control valve and the control wrench are arranged, after the air cylinder is connected with the air source, the manual control valve can be triggered through the control wrench, the air source in the air cylinder can switch the flow direction, the driving end of the air cylinder is controlled to move forwards or backwards, the air cylinder acts and is transmitted to the actuating head, power is provided for cutting of the blade and discharging and sewing of the anastomosis nail, the air flow direction of the air cylinder can be switched after the actuating is finished, and the driving end of the air cylinder moves backwards. The structure is simple and easy to control.

Description

Pneumatic endoscope anastomat

Technical Field

The invention relates to an endoscope anastomat, in particular to a pneumatic endoscope anastomat.

Background

Endoscopic staplers, such as medical linear cutting staplers, are used for the cutting of soft tissue and the suturing of the edges of opposite sides of an incision in laparoscopic surgery. The executing head is provided with a nail bin, a nail anvil and a blade, most of the operations are manual operations, and the corresponding buttons or wrenches are pushed by hand of a surgeon to provide power for advancing the blade and advancing a nail bin seat for pushing out anastomotic nails.

If the auxiliary driving mechanism can provide power for cutting the blade and discharging the anastomosis nails, the labor force of a doctor can be reduced, and the operation time can be reduced and the operation quality can be improved. Chinese patent document "pneumatic surgical cutting and fastening instrument with electrical control and recording mechanism" such as publication number "CN 101313865A" discloses assisting power by a pneumatic drive member; chinese patent publication No. CN102665574A, "motor-driven surgical cutting instrument with electric actuator orientation control assembly", discloses that auxiliary power is provided by a motor, but the structure is somewhat complicated.

The invention aims to provide a pneumatic endoscope anastomat which is simple in structure and easy to control.

Disclosure of Invention

The invention aims to provide a pneumatic endoscope anastomat and provide another endoscope anastomat powered by pneumatic assistance.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides a pneumatic endoscope anastomat, which comprises:

an execution head for cutting and stapling soft tissue;

a cylinder having a drive end coupled to the actuation head;

a manual control valve connected to the cylinder for switching a flow direction of the air flow communicated into the cylinder;

and the control wrench is arranged corresponding to the manual control valve and is used for controlling the manual control valve.

Preferably, a switching button is provided on the manual control valve, and the control wrench corresponds to the switching button.

Further, the control wrench is connected to a transmission rod corresponding to the switching button.

Furthermore, the control wrench is rotatably connected with one end of the transmission rod, the switching button is rotatably arranged, and the transmission rod is slidably arranged.

Still further, be provided with on the transfer line and dial the board, dial and be provided with the inclined plane on the board, the inclined plane corresponds to switch button.

Furthermore, a return spring is connected to the control wrench or the transmission rod, and the driving force of the return spring causes the switching button not to be pressed.

Preferably, it comprises a closure wrench coupled to the actuation head for closing the jaws in the actuation head upon retraction, the control wrench being connected to the closure wrench.

Furthermore, a support rod is arranged on the closed wrench, and the control wrench is rotatably arranged at the far end of the support rod.

Furthermore, the supporting rod is rotatably provided with a safety button, the control wrench is provided with a supporting surface, and the supporting surface is used for supporting the swinging end of the safety button.

Still further, a recess is provided in the control wrench, the bearing surface being located in the recess, the recess being sufficient to receive at least a portion of the swing end.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

according to the pneumatic endoscope anastomat, due to the fact that the actuating head, the air cylinder, the manual control valve and the control wrench are arranged, after the air cylinder is connected with the air source, the manual control valve can be triggered through the control wrench, the air source in the air cylinder is enabled to switch the flow direction, the driving end of the air cylinder is controlled to move forwards or backwards, the air cylinder acts and is transmitted to the actuating head, power is provided for cutting of a blade and discharging of an anastomosis nail, the air flow direction of the air cylinder can be switched after the air cylinder is executed, and the driving end of the air. The structure is simple and easy to control.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural view of a pneumatic endoscopic stapler according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the right-hand portion of FIG. 1;

FIG. 3 is a schematic view of the control wrench or the like of FIG. 2 with parts removed;

FIG. 4 is a schematic view of the closure wrench, etc., of FIG. 2, with parts removed;

FIG. 5 is a schematic view of the control wrench in connection with the closure wrench;

FIG. 6 is a schematic view of the safety button in operation, shown in a locked position, and FIG. 5 is a corresponding unlocked position of the safety button;

FIG. 7 is a schematic diagram of a manual control valve;

wherein the reference numerals are as follows:

1. an execution head;

2. a cylinder;

3. a manual control valve; 301. a switch button;

4. controlling the wrench; 401. a support surface; 402. a groove;

5. a transmission rod;

6. dialing a plate; 601. a bevel;

7. a return spring;

8. closing the wrench;

9. a support bar;

10. an insurance button;

11. a handle;

12. and an air source interface.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, the pneumatic endoscopic stapler comprises an execution head 1, a cylinder 2, a manual control valve 3 and a control wrench 4. The execution head 1 comprises a blade, a nail bin and other components and is used for cutting and sewing two opposite side edges of an incision. A cylinder 2 is coupled to the actuation head 1 for pushing the blade and pushing the cartridge seat (for expelling the staples). The manual control valve 3 is used to switch the flow direction of the air flow communicated into the cylinder 2, and the control wrench 4 is used to control the manual control valve 3.

As shown in fig. 2, the manual control valve 3 is provided in the handle 11, and the cylinder 2 is provided in a housing at an upper end of the handle 11.

Fig. 3 is a schematic view of fig. 2 with relevant parts such as the control wrench 4 removed.

As shown in fig. 3, the manual control valve 3 is a two-position five-way valve, wherein the manual control valve 3 has five ports, A, B, C and two ports connected to atmosphere. The schematic diagram is shown in fig. 7.

Fig. 3, wherein the a port is externally connected with a gas source through a gas source port 12, such as a high-pressure gas port in an operating room. B. One of the C interfaces is a high-pressure air outlet, and the B, C interfaces are respectively connected with the front end and the rear end of the cylinder 2.

The interface B is connected with the front end of the cylinder 2, and the interface C is connected with the rear end of the cylinder 2. The manual control valve 3 is provided with a switching button 301. When the switching button 301 is not pressed, high-pressure gas is discharged from the interface B to push the piston in the cylinder 2 to retreat; when the switching button 301 is pressed, the interface B is switched with the interface C, high-pressure gas is discharged from the interface C to push the piston in the cylinder 2 to advance, and the driving end of the cylinder 2 indirectly acts on the actuator 1.

A pressure reducing valve (not shown) may be further disposed in the pipeline connecting the air source interface 12 to the air source to adjust the air source pressure, so as to adjust the driving speed of the air cylinder 2 and achieve the adjustable propelling speed.

The cylinder 2 can also be arranged detachably, so that the cylinders 2 with different pushing strokes can be replaced, and customization of different operations is realized.

As shown in fig. 3, a closing wrench 8 is used to control the opening and closing of the actuating head 1. When the closing wrench 8 is retracted (state in fig. 3), the execution head 1 is closed; when the closure key 8 is reset (clockwise rotation of the state in fig. 3), the actuation head 1 is opened.

As shown in fig. 4 (with respect to fig. 2, parts such as the closing wrench 8 have been removed), in order to press the switching button 301, the control wrench 4 and the corresponding transmission parts are provided.

As shown in fig. 4, the control wrench 4 can rotate around point D. The upper end of the control wrench 4 is hinged to a drive rod 5 at E. The transmission rod 5 is arranged in a left-right sliding manner. The lower edge of the right end of the transmission rod 5 is provided with a dial plate 6, the dial plate 6 is provided with an inclined surface 601, and the inclined surface 601 is arranged corresponding to the switching button 301. The provision of the ramp 601 facilitates the translation of the horizontal movement of the dial 6 into a downward depression of the toggle button 301. The arrangement of the transmission rod 5 is advantageous for transmitting the action of the control wrench 4 to the shifting plate 6 at a relatively long distance.

When the lower end of the control wrench 4 is pressed by a hand, the upper end of the control wrench 4 rotates to the left, and the transmission rod 5 is driven to move to the left, so that the switching button 301 is pressed by the shifting plate 6. When the switching button 301 is pressed, the outlet of the high-pressure air is switched from the interface B to the interface C, so that the piston in the cylinder 2 is driven to move leftwards, and the blade cutting and cartridge seat pushing staples in the execution head 1 are indirectly driven, as shown in fig. 3. When the shifting plate 6 repeals the pressing of the switching button 301, the switching button 301 naturally resets upwards, the outlet of high-pressure air is switched from the interface C to the interface B, the piston of the driving cylinder 2 moves rightwards, and the blade and the nail bin seat in the execution head 1 are indirectly driven to withdraw.

Although the manual control valve 3 of the present example employs a two-position five-way valve, in other embodiments, a two-position three-way valve may be employed, which is reset by means of a spring provided in the cylinder 2 (in this case, a single-acting cylinder).

In this example, as shown in fig. 4, a return spring 7 is connected to the right end of the transmission lever 5 to facilitate the return of the dial 6. When the lower end of the control wrench 4 is released from being pressed by the hand, the return spring 7 pulls the transmission rod 5 back to the right, so that the shifting plate 6 releases the pressing of the switching button 301, that is, the driving force of the return spring 7 causes the switching button 301 not to be pressed. Of course, the return spring 7 can also be connected to the shifting plate 6 or to the control wrench 4.

As shown in fig. 5, the control wrench 4 is connected to the closing wrench 8, specifically to the closing wrench 8 via a support bar 9. The rear end of the supporting rod 9 is fixed with the closing wrench 8, and the front end of the supporting rod 9 is hinged with the approximate middle position of the control wrench 4. The support bar 9 allows the control key 4 to be spaced from the closing key 8 to provide space for the rotation of the control key 4. Although the closing wrench 8 is rotatably arranged, the position of the control wrench 4 is not significantly affected by the rotation of the closing wrench 8, i.e. the switching button 301 (see fig. 4) is not triggered by the rotation of the closing wrench 8.

Referring to fig. 5, the supporting rod 9 is rotatably provided with a safety button 10, the control wrench 4 is provided with a groove 402, and the groove 402 is provided with a supporting surface 401. The support surface 401 serves to support the swing end of the safety button 10.

As shown in fig. 6, the swing end (lower end) of the safety button 10 is swung forward, so that the swing end (lower end) of the safety button 10 is placed on the supporting surface 401, and the control wrench 4, the supporting rod 9 and the safety button 10 form a stable state similar to a triangle, thereby limiting the control wrench 4 from being pushed to rotate, i.e., locking the control wrench 4.

In this case, the recess 402 provided in the control wrench 4 advantageously accommodates at least a portion of the swing end of the safety button 10, so that the swing end of the lower end of the safety button 10 can stably rest on the control wrench 4, thereby stabilizing the safety state. In other embodiments, the recess 402 may be omitted, such as by supporting the swing end of the safety button 10 with the rear side surface of the control knob 4.

In conclusion, the air cylinder 2 is used for assisting in pushing the blade and the nail bin seat in the execution head 1, so that the labor of an operator is reduced, and the operation is more efficient and high-quality. In addition, the control wrench 4 can be locked by the safety button 10, so that the air cylinder 2 does not start to advance due to misoperation. In addition, the external air source in the operating room can be used for air supply. And such pneumatic chamber mirror anastomat is changeed the assembly when producing the assembly to production efficiency has been improved.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. A pneumatic endoscope anastomat is characterized by comprising:

an execution head (1), wherein the execution head (1) is used for cutting and suturing soft tissue;

a cylinder (2), the driving end of the cylinder (2) being coupled to the actuator head (1);

a manual control valve (3), said manual control valve (3) being connected to said cylinder (2) for switching the flow direction of the air flow communicated into said cylinder (2);

the control wrench (4) is arranged corresponding to the manual control valve (3) and used for controlling the manual control valve (3).

2. The pneumatic endoscopic stapler of claim 1, wherein: a switching button (301) is arranged on the manual control valve (3), and the control wrench (4) corresponds to the switching button (301).

3. The pneumatic endoscopic stapler of claim 2, wherein: the control wrench (4) is connected to a transmission rod (5), and the transmission rod (5) corresponds to the switching button (301).

4. The pneumatic endoscopic stapler of claim 3, wherein: the control wrench (4) is rotationally connected with one end of the transmission rod (5), the switching button (301) is rotationally arranged, and the transmission rod (5) is slidably arranged.

5. The pneumatic endoscopic stapler of claim 4, wherein: the transmission rod (5) is provided with a shifting plate (6), the shifting plate (6) is provided with an inclined surface (601), and the inclined surface (601) corresponds to the switching button (301).

6. The pneumatic endoscopic stapler of claim 3, wherein: a return spring (7) is connected to the control wrench (4) or the transmission rod (5), and the driving force of the return spring (7) urges the switching button (301) not to be pressed.

7. The pneumatic endoscopic stapler of claim 1, wherein: it comprises a closing wrench (8), the closing wrench (8) being coupled to the actuation head (1) for closing the jaws in the actuation head (1) when retracted, the control wrench (4) being connected to the closing wrench (8).

8. The pneumatic endoscopic stapler of claim 7, wherein: the closing wrench (8) is provided with a support rod (9), and the control wrench (4) is rotatably arranged at the far end of the support rod (9).

9. The pneumatic endoscopic stapler of claim 8, wherein: the supporting rod (9) is provided with an insurance button (10) in a rotating mode, the control wrench (4) is provided with a supporting surface (401), and the supporting surface (401) is used for supporting the swinging end of the insurance button (10).

10. The pneumatic endoscopic stapler of claim 9, wherein: a recess (402) is provided in the control key (4), the support surface (401) being located in the recess (402), the recess (402) being sufficient to accommodate at least a part of the swinging end.