CN213189866U

CN213189866U - Electric pushing device for triggering anastomat

Info

Publication number: CN213189866U
Application number: CN202021824153.5U
Authority: CN
Inventors: 冯庆敏; 刘胜林; 王琮; 刘海洋
Original assignee: Wuhan Zhiling Medical Technology Co ltd
Current assignee: Wuhan Zhiling Medical Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-05-14
Anticipated expiration: 2030-08-27

Abstract

The utility model provides an electronic thrust device for percussion anastomat for electronic thrust device of percussion anastomat, including percussion push rod, percussion gear, drive gear, driving motor, a terminal surface of percussion gear is arranged around the cam groove of its axle center a week, the percussion push rod overlaps in the axostylus axostyle of anastomat, and its one end is installed with cam groove clearance fit's cotter, and this cotter inlays in the cam groove, driving motor drives drive gear and rotates and make the percussion gear rotatory, makes the percussion push rod along the percussion action of central siphon motion control nail storehouse subassembly, the utility model discloses a cam structure drives through the rotatory and longitudinal force that produces of cam structure the percussion subassembly.

Description

Electric pushing device for triggering anastomat

Technical Field

The utility model relates to the field of medical equipment, especially, relate to an electronic thrusting device for percussion anastomat.

Background

In some surgical procedures (e.g., colorectal, bariatric, thoracic, etc.), portions of the patient's gastrointestinal tract or esophagus are cut and removed, and the cut portions require surgical instruments of the anastomotic, stapling, and the like to be reattached by end-to-end, end-to-side, and side-to-side anastomosis. The surgical instrument is anastomosed by applying double rows of anastomotic nails which are arranged in a cross way, and an annular knife is used for cutting off redundant tissues at the anastomotic part in an annular array of the nails during anastomosis, so that an anastomotic stoma with consistent caliber size, neat involution of mucosa, reliable anastomosis firmness and good hemostasis and blood circulation is formed. The traditional anastomat is mechanical, and no electric shockable structure exists at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem provide the electronic trigger device that can fire nail storehouse subassembly, can accomplish the cutting of organizing and sew up this a series of percussion actions with the relative nail seat motion of supporting of same percussion dynamics and percussion distance drive nail storehouse subassembly.

The technical scheme of the utility model is that: the electric pushing device for triggering the anastomat comprises a triggering push rod, a triggering gear, a transmission gear and a driving motor, wherein a cam-shaped track surrounding the axis of the triggering gear in a circle is arranged on one end face of the triggering gear, the triggering push rod is sleeved in a shaft tube of the anastomat, a coupling piece matched with the cam-shaped track is installed at one end of the triggering push rod and can slide along the rotating cam-shaped track, the triggering push rod is pushed and pulled by the rotating cam-shaped track to move along the shaft tube to control the triggering action of the nail bin assembly, and the driving motor drives the transmission gear to rotate to enable the triggering gear to rotate.

Preferably, the cam track is a cam groove, and the coupling member is a pin inserted into the cam groove, and the cam groove is in clearance fit with the pin.

Preferably, the cam-shaped track is an annular boss with a cam-shaped cross section, the coupling piece is a U-shaped claw capable of clamping the annular boss, and the other end of the U-shaped claw is rotatably connected with the firing push rod.

According to the utility model discloses a structure, the movable handle of anastomat is manual to be gripped the percussion mode and has been changed into motor drive percussion mode, and the percussion distance is the major axis line length of cam groove, and percussion speed has the rotational speed decision of motor, and different people use the homoenergetic to reach same percussion dynamics to avoided anastomotic fistula or anastomotic hemorrhage, this device can make the percussion push rod withdrawal automatically and reset after accomplishing the percussion action.

Drawings

FIG. 1 is a schematic view of an electric stapler according to the present invention;

FIG. 2 is a schematic view of the internal structure of the handle assembly of the electric stapler of the present invention;

fig. 3 is a schematic structural view of a firing gear of the electric stapler according to embodiment 1 of the present invention;

FIG. 4 is a schematic view showing the state of the percussion process of the percussion assembly of the electric anastomat of the present invention;

fig. 5 is a schematic view of the assembled percussion gear of the electric anastomat of embodiment 2 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should be noted that throughout the specification, the term "distal" refers to a portion further from the user and "proximal" refers to a portion closer to the user.

Example 1

Fig. 1 illustrates an exemplary powered stapler 10 that is used to provide end-to-end anastomosis between two segments of an anatomical lumen, such as a portion of a patient's digestive tract. The surgical instrument 10 of the present example includes a handle assembly 200, a shaft tube 300, and an end effector 400, wherein the end effector 400 includes an anvil 401 and a staple cartridge 402. A shaft tube 300 extends distally from the handle assembly 200, and an end effector 400 is coupled to a distal end of the shaft tube 300. Briefly, handle assembly 200 is operable to actuate end effector 400 to selectively open and close anvil 401 to clamp tissue between the anvil and the staple cartridge, and to drive a cutting blade and staples in staple cartridge 402, severing the tissue while the staples pass through the tissue against the recesses of the anvil to staple the tissue contained between the anvil and the staple cartridge.

Fig. 2 to 4 show an electric pushing device for firing a stapler, which includes a firing push rod 222, a firing gear 221, a transmission gear 244, and a driving motor 231, wherein a cam slot 2215 surrounding the axis of the firing gear 221 by one circle is disposed on one end surface of the firing gear 221, the firing push rod 222 is sleeved in the shaft tube of the stapler, a pin 2214 in clearance fit with the cam slot 2215 is mounted on one end of the firing push rod, the pin 2214 is embedded in the cam slot 2215, and the driving motor 231 drives the transmission gear 221 to rotate so as to rotate the firing gear 244, so that the firing push rod 222 moves along the shaft tube to control the firing action of the cartridge assembly.

Example 2

An electric pushing device for triggering an anastomat comprises a triggering push rod 222, a triggering gear 221, a transmission gear 244 and a driving motor, as shown in fig. 5, a cam-shaped track 2215 which surrounds the axis of the triggering gear 221 in a circle is arranged on one end face of the triggering gear 221, the cam-shaped track is an annular boss with a cam-shaped cross section, the triggering push rod is sleeved in a shaft tube of the anastomat, a U-shaped claw 2214 matched with the cam-shaped track is installed at one end of the triggering push rod, one end of the U-shaped claw clamps the annular boss, the other end of the U-shaped claw is rotatably connected with the triggering push rod, the U-shaped claw can slide along the rotating cam-shaped track to enable the triggering push rod to be pushed and pulled by the rotating cam-shaped track to move along the shaft.

It will be understood by those skilled in the art that the output shaft of the driving motor 231 can directly drive the transmission gear 244, and although the driving motor 231 is meshed with the transmission gear 244 through a gear set in fig. 2, the gear set is a conventional arrangement in the art, and it is possible to provide multiple sets of gears or no gear set.

Claims

1. The electric pushing device for the percussion anastomat comprises a percussion push rod, a percussion gear, a transmission gear and a driving motor and is characterized in that a cam-shaped track surrounding the axis of the percussion gear in a circle is arranged on one end face of the percussion gear, the percussion push rod is sleeved in a shaft tube of the anastomat, a coupling piece matched with the cam-shaped track is installed at one end of the percussion push rod, the coupling piece can slide along the rotating cam-shaped track, the percussion push rod is pushed and pulled by the cam-shaped track to move along the shaft tube to control the percussion action of a nail bin assembly, and the driving motor drives the transmission gear to rotate to enable the percussion gear to rotate.

2. The electric putting device for firing a stapler of claim 1, wherein the cam track is a cam groove, and the coupling is a pin inserted into the cam groove, the cam groove and the pin being in a clearance fit.

3. The electric pushing device for firing a stapler of claim 1, wherein the cam-shaped track is an annular boss with a cam-shaped cross section, the coupling member is a U-shaped claw capable of clamping the annular boss, and the other end of the U-shaped claw is rotatably connected with the firing push rod.