CN113180764A

CN113180764A - Endoscope closing anastomat provided with cutting knife

Info

Publication number: CN113180764A
Application number: CN202110613137.4A
Authority: CN
Inventors: 徐维华
Original assignee: Shanghai Boqia Medical Devices Co ltd
Current assignee: Shanghai Boqia Medical Devices Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-07-30

Abstract

An endoscope closing anastomat provided with a cutting knife is characterized in that a nail bin tissue contact surface of a nail bin and all nail storage holes in the nail bin are positioned on the same side of a nail bin cutter groove; the technical characteristic that all forming grooves on the nail anvil component are positioned on the same side of a nail anvil cutter groove of the nail anvil component is adopted; when a tissue is clamped between a nail bin tissue contact surface of the nail bin assembly and a nail anvil tissue contact surface of the nail anvil assembly, the driving piece pushes the inclined wedge to move forwards, the inclined wedge pushes the nail pushing block to move upwards in the nail storage hole, the nail pushing block pushes the anastomotic nail to pierce the tissue and press the tissue to be bent and formed on the forming groove to be anastomosed with the tissue, and the driving piece pushes the cutting knife to move forwards along the nail bin cutter groove and the nail anvil cutter groove to cut off redundant tissue on one side, which is not anastomosed with the anastomotic nail, of the nail bin cutter groove and the nail anvil cutter groove.

Description

Endoscope closing anastomat provided with cutting knife

Technical Field

The invention relates to various endoscope closing anastomats provided with cutting knives, in particular to an endoscope closing anastomat provided with cutting knives and used in an laparoscope, and in particular relates to an endoscope closing anastomat provided with cutting knives and used in a thoracoscope.

Background

In surgical operations, various manual, electric, and surgical robotically used endoscopic surgical staplers are commonly used for operations to form organ tissue passages and operations to close organ tissue incisions in the abdominal cavity and in the thoracic cavity; procedures used to close incisions in organ tissue in the excretory and reproductive systems; is particularly suitable for the anastomosis operation of organ tissues which are difficult to expose and operate, can reduce operation trauma, shorten operation time and improve operation quality.

The endoscopic closure stapler includes an actuation assembly, an extension assembly, and an operating assembly. The extension component connects the operation component and the execution component. The extension assembly may or may not have a joint assembly thereon. The actuating assembly of the endoscopic closure stapler may be a straight actuating assembly or an arcuate actuating assembly. The executing component is provided with a nail box component and a nail anvil component. A plurality of concave forming grooves are arranged on the tissue contact surface of the nail anvil component in a staggered way. A plurality of nail storing holes are arranged on the nail bin tissue contact surface of the nail bin assembly in a staggered mode. And an anastomosis nail and a nail pushing block are arranged in the nail storage hole. The anastomotic nail is arranged at the top of the nail pushing block. The operating assembly is provided with a driving piece and a cutting knife. When tissue is clamped between the nail bin assembly and the nail anvil assembly, the forming grooves on the nail anvil assembly correspond to the positions of the anastomotic nails in the nail bin assembly. The first dissatisfaction of this type of endoscopic surgical stapler is that the endoscopic cutting stapler and the endoscopic closing stapler without the cutting knife have similar shapes to the endoscopic closing stapler with the cutting knife, and once inserted into the abdominal cavity or the thoracic cavity, it is difficult to distinguish them, which is likely to cause operation errors. The second dissatisfaction of the endoscopic surgical stapler of this type is that when the nail cartridge assembly and the nail anvil assembly clamp and staple the tissue, some tissue may be extruded out of the nail cartridge assembly and the nail anvil assembly, resulting in incomplete anastomosis, requiring re-clamping of the tissue and anastomosis tissue, or requiring replacement of a larger size of the actuating assembly for re-clamping of the tissue and anastomosis tissue, increasing the operation time and operation cost, and reducing the operation quality.

Disclosure of Invention

The invention provides an endoscope closing anastomat provided with a cutting knife, which adopts the technical characteristics that a nail bin tissue contact surface of a nail bin and all nail storage holes in the nail bin are positioned on the same side of a nail bin cutter groove; the technical characteristic that all forming grooves on the nail anvil component are positioned on the same side of a nail anvil cutter groove of the nail anvil component is adopted; when a tissue is clamped between a nail bin tissue contact surface of the nail bin assembly and a nail anvil tissue contact surface of the nail anvil assembly, the driving piece pushes the inclined wedge to move forwards, the inclined wedge pushes the nail pushing block to move upwards in the nail storage hole, the nail pushing block pushes the anastomotic nail to pierce the tissue and press the tissue to be bent and formed on the forming groove to be anastomosed with the tissue, and the driving piece pushes the cutting knife to move forwards along the nail bin cutter groove and the nail anvil cutter groove to cut off redundant tissue on one side, which is not anastomosed with the anastomotic nail, of the nail bin cutter groove and the nail anvil cutter groove. Because the tissue contact surface of the nail bin and all the nail storage holes in the nail bin are positioned at the same side of the nail bin cutter groove, and all the forming grooves on the nail anvil component are positioned at the same side of the nail anvil cutter groove of the nail anvil component, not only the section of the executing component is obviously asymmetric, but also the sectional area of the executing component of the endoscope closing anastomat provided with the cutting knife is obviously smaller than the sectional areas of the executing component of the endoscope cutting anastomat and the executing component of the endoscope closing anastomat not provided with the cutting knife, therefore, the executing component of the endoscope closing anastomat provided with the cutting knife can conveniently enter a narrow operation area, and when the endoscope closing anastomat provided with the cutting knife is inserted into an abdominal cavity or a thoracic cavity, the position where the anastomotic tissue of the anastomotic nail is rapidly determined from the appearance of the endoscope closing anastomat provided with the cutting knife, and the endoscope closing anastomat not provided with the cutting knife are rapidly distinguished from the endoscope cutting anastomat provided with the symmetrical sectional shape of the executing component, the technical effects of expanding the operation range and reducing the operation time are achieved, and the technical effect of avoiding misusing the endoscope cutting anastomat or executing the operation of the endoscope closing anastomat provided with the cutting knife by using the endoscope closing anastomat without the cutting knife is achieved.

The invention provides a cavity mirror closing anastomat provided with a cutting knife, which adopts the technical characteristics that a guide block inserted into a nail bin chute in a nail bin frame is arranged on an inclined wedge; the technical characteristic that the driving piece pushes the guide block of the inclined wedge to move along the nail bin chute is realized. Because the guide block of the inclined wedge is inserted into the nail bin chute in the nail bin frame, when the driving piece pushes the guide block of the inclined wedge to move along the nail bin chute, the guide block of the inclined wedge can prevent the inclined wedge positioned on the same side of the nail bin chute from position deviation, so that the inclined wedge is prevented from pushing the nail pushing block to push the anastomotic nail to pierce the tissue to press the tissue on the forming groove to bend and form the anastomotic nail when the anastomotic nail is subjected to position deviation, and the technical effect of improving the operation quality is achieved.

The third purpose of the invention is to provide a cavity mirror closing anastomat provided with a cutting knife, which adopts the technical characteristics that a blocking block is arranged in a front blocking mechanism and a positioning groove is arranged at the front part of a nail anvil component; the technical characteristics that a cutting groove or a knife anvil is arranged in the barrier block are adopted; when the nail bin component and the nail anvil component are closed, the blocking block swings upwards in the direction from the front part of the nail bin component to the front part of the nail anvil component, is inserted into the positioning groove in the front part of the nail anvil component and then is blocked between the front part of the nail bin component and the front part of the nail anvil component; when the nail bin component and the nail anvil component are opened, the blocking block swings downwards at the front part of the nail bin component towards the direction of separating from the positioning groove at the front part of the nail anvil component; when the cutting knife moves to the position of the stop block, the cutting knife is inserted into the cutting groove of the stop block or cut into the knife anvil of the stop block, and redundant tissues are cut off. Because the nail bin assembly and the nail anvil assembly clamp tissues and are anastomotic, the blocking block prevents the tissues from being extruded out of the anastomotic region of the nail bin assembly and the nail anvil assembly, the positions of the forming grooves on the nail anvil assembly and the anastomotic nails in the nail bin assembly can be ensured to correspond to each other by inserting the blocking block into the positioning groove in the front part of the nail anvil assembly, and the cutter can cut off redundant tissues by inserting the cutter into the cutting groove of the blocking block or cutting the cutter anvil of the blocking block, so that the complete anastomosis and the tissue cutting operation can be completed at one time, the quality of the anastomotic nail bending formation is improved, and the technical effects of reducing the operation time and improving the operation quality are achieved.

The fourth purpose of the invention is to provide a cavity mirror closing anastomat provided with a cutting knife, wherein an elastic hook and a restraint hook are arranged in a nail bin rear mounting hook, and the restraint hook is provided with the technical characteristics of a barrier wire; the technical characteristic that a rear mounting hook groove is arranged in the mounting hook groove and positioned at the rear part of the nail bin is adopted; the technical characteristics that a limiting groove on the inclined wedge and a blocking groove are arranged in the side surface of the nail bin cutter groove are adopted; the technical scheme that when the inclined wedge is installed in the nail bin cutter groove, the blocking wire of the installation hook bounces into the nail bin in the limiting groove on the inclined wedge to restrain the inclined wedge from moving back and forth in the nail bin cutter groove is achieved; when the driving piece moves forwards again after resetting, the blocking wire of the restraining hook spanning the blocking groove of the nail bin cutter groove and the rear mounting hook groove blocks the driving piece to move forwards after passing through the blocking wire of the restraining hook. The rear installation hook of the nail bin enables the nail bin to be obliquely wedged in the storage, transportation and use processes without position change, so that the nail bin cannot be reused after the nail bin is used, and the technical effect of ensuring the safe use of the endoscope closing anastomat provided with the cutting knife is achieved.

The fifth purpose of the invention is to provide a cavity mirror closing anastomat provided with a cutting knife, which adopts the technical characteristic that when an execution piece installation groove and an embedding groove are positioned at the mutually aligned positions, the embedding groove can be replaced; the technical characteristic that the replaceable mosaic block is formed when the execution piece mounting block and the mosaic block are positioned at the position aligned with each other is adopted; technical features are employed to form the replaceable mosaic connection when the replaceable mosaic tile is inserted into the replaceable mosaic slot. When the replaceable embedding groove is inserted into the replaceable embedding block to form replaceable embedding connection, the driving part moves forwards to prevent the execution part installation block from moving out of the execution part installation groove and prevent the embedding block from moving out of the embedding groove, and meanwhile, the execution part is installed on the execution part seat and the driving head is installed on the driving rod; the technical scheme is that after the driving piece moves backwards to align the position of the replaceable embedding groove with the position of the replaceable embedding block, the executing piece is moved out of the executing piece seat and the driving head is moved out of the driving rod; the technical effects that the nail bin assembly, the nail anvil assembly and the driving head with various specifications can be replaced, and other various endoscopic surgical executing pieces can be replaced are achieved; the technical effects of simple, convenient, quick and safe replacement process are achieved; the technical effects of greatly reducing the cost of the endoscopic surgery and meeting the requirements of various purposes of the endoscopic surgery are achieved.

The sixth purpose of the invention is to provide a cavity mirror closing anastomat provided with a cutting knife, which adopts the technical characteristics that an executing piece is provided with a nail bin mounting block, an open nail bin mounting groove and an open restraining groove; the technical characteristic that the rear part of the nail bin assembly is provided with a restraint block is adopted; the technical characteristics that a nail anvil component and a nail bin component are inserted into a nail bin mounting groove by a nail bin mounting block to form a rotary support of an executing piece are adopted; the lower beam of the driving head moves forwards at the opening of the restraint groove to block the nail bin mounting block and the restraint block from moving out of the opening of the nail bin mounting groove and the opening of the restraint groove, and the nail bin assembly is mounted on the executive part; the lower beam of the driving head moves backwards at the opening of the restraint slot of the executive component to open the opening of the restraint slot, the nail bin mounting block and the restraint block are moved out of the opening of the nail bin mounting slot and the opening of the restraint slot, and the nail bin assembly is moved out of the executive component; the technical effects of simple, convenient, quick and safe process for replacing the nail bin assemblies with various specifications are achieved.

The purpose of the invention is realized by the following technical scheme:

the endoscope closing anastomat provided with the cutting knife comprises an execution assembly, an extension assembly and an operation assembly. The extension component connects the operation component and the execution component. The extension assembly may or may not have a joint assembly thereon. The actuating assembly of the endoscopic closure stapler may be a straight actuating assembly or an arcuate actuating assembly. The executing component is provided with a nail box component and a nail anvil component. A plurality of concave forming grooves are arranged on the tissue contact surface of the nail anvil component in a staggered way. The nail bin assembly is provided with a nail bin and a nail bin frame. The nail bin is arranged on the nail bin frame. A plurality of nail storing holes are arranged on the nail bin tissue contact surface of the nail bin in a staggered way. And an anastomosis nail and a nail pushing block are arranged in the nail storage hole. The staples may be U-shaped staples or staples of other shapes. The anastomotic nail is arranged at the top of the nail pushing block. The operating assembly is provided with a driving piece and a cutting knife. The front part of the driving piece is provided with an upper beam and a lower beam. When tissue is clamped between the nail bin assembly and the nail anvil assembly, the forming grooves on the nail anvil assembly correspond to the positions of the anastomotic nails in the nail bin. The forming grooves and the staples are generally staggered into two adjacent rows or three adjacent rows, and can be arranged in a straight shape or an arc shape.

The nail bin assembly is provided with an inclined wedge and a nail bin cutter groove in the front-back direction. The nail bin frame is provided with a nail bin chute in the front-back direction. The tissue contact surface of the nail bin and all the nail storing holes in the nail bin are positioned on the same side of the nail bin cutter groove. The nail anvil component is provided with a nail anvil cutter groove and a nail anvil chute in the front and back directions. All the forming grooves on the nail anvil component are positioned on the same side of the nail anvil knife groove of the nail anvil component. When tissue is clamped between the nail bin assembly and the nail anvil assembly, the driving part moves forwards in the executing assembly, the upper beam of the driving part moves forwards along the nail anvil chute, and the lower beam of the driving part moves forwards along the nail bin chute; at the moment, the driving piece pushes the inclined wedge to move forwards, the inclined wedge pushes the nail pushing block to move upwards in the nail storage hole, the nail pushing block pushes the anastomotic nail to pierce through tissues and press the tissues to be anastomosed after being bent and formed on the forming groove, and the driving piece pushes the cutting knife to move forwards along the nail bin cutter groove and the nail anvil cutter groove to cut off redundant tissues on the side, which is not anastomosed by the anastomotic nail, of the nail bin cutter groove and the nail anvil cutter groove.

The inclined wedge can be provided with a guide block. The guide block is inserted into a nail bin chute in the nail bin frame. The driving piece pushes the guide block of the inclined wedge to move along the nail bin chute.

A front blocking mechanism may be present in the actuator assembly of the present invention. The front blocking mechanism is provided with a blocking block and a deflector rod. The blocking block and the shifting rod are arranged in the nail bin assembly. The blocking block can swing up and down at the front part of the nail bin assembly. The swing mechanism is formed by inserting the front shifting block into the front shifting groove between the shifting rod and the blocking block. The front part of the deflector rod enables the blocking block to swing up and down at the front part of the nail bin assembly through a swing mechanism. When the nail bin assembly and the nail anvil assembly are closed, the front part of the shift lever pushes the blocking block to swing upwards in the direction from the front part of the nail bin assembly to the front part of the nail anvil assembly, so that the blocking block is blocked between the front part of the nail bin assembly and the front part of the nail anvil assembly. When the nail bin assembly and the nail anvil assembly are opened, the front part of the shift lever pushes the blocking block to swing downwards in the direction of separating from the nail anvil assembly.

The blocking piece may have a cut groove therein. When the cutting knife moves to the stop block, the cutting knife is inserted into the cutting groove of the stop block to cut off redundant tissues. An anvil may also be provided in the stop block. When the cutting knife moves to the position of the blocking block, the cutting knife cuts into the knife anvil of the blocking block to cut off redundant tissues.

The front part of the nail anvil component can be provided with a positioning groove. When the cartridge component and the nail anvil component are closed, the blocking block swings upwards in the direction from the front part of the nail cartridge component to the front part of the nail anvil component, so that the blocking block is inserted into the positioning groove in the front part of the nail anvil component and then is blocked between the front part of the nail cartridge component and the front part of the nail anvil component. When the nail bin component and the nail anvil component are opened, the blocking block swings downwards in the front part of the nail bin component towards the direction of separating from the positioning groove in the front part of the nail anvil component.

The deflector rod can move back and forth in the nail bin assembly. The side wing of the nail anvil component can be provided with a back cam groove. The rear part of the deflector rod can be provided with a rear deflector block. The rear shifting block of the shifting lever is inserted into the rear cam groove at the side wing of the nail anvil component to form a cam mechanism. The nail anvil component pushes the rear shifting block through a rear cam slot in the cam mechanism to enable the shifting rod to move back and forth in the nail bin component. When the nail bin assembly and the nail anvil assembly are closed, the nail anvil assembly pushes the rear shifting block through the rear cam groove in the cam mechanism to enable the shifting rod to move forwards in the nail bin assembly, the front part of the shifting rod enables the blocking block to swing upwards in the front part of the nail bin assembly towards the front part of the nail anvil assembly through the swinging mechanism, and the blocking block is inserted into the positioning groove in the front part of the nail anvil assembly and then is blocked between the front part of the nail bin assembly and the front part of the nail anvil assembly. When the nail bin assembly and the nail anvil assembly are opened, the nail anvil assembly pushes the rear shifting block through the rear cam groove in the cam mechanism to enable the shifting rod to move backwards in the nail bin assembly, and the front part of the shifting rod enables the blocking block to swing downwards in the front part of the nail bin assembly towards the direction of the positioning groove separated from the front part of the nail anvil assembly through the swinging mechanism.

The nail bin assembly can be provided with a hook after the nail bin is installed. The back of the nail bin is provided with an elastic hook and a restraining hook. The nail bin is provided with a rear mounting hook groove. The nail bin rear mounting hook is mounted in the rear mounting hook groove. The rear part of the nail bin frame is provided with a restriction hole. When the nail bin is arranged in the nail bin frame, the restraining hook of the rear nail bin mounting hook is hooked on the rear mounting hook groove of the nail bin, and the elastic hook of the rear nail bin mounting hook is elastically deformed in the rear mounting hook groove and then bounces into the restraining hole of the nail bin frame; at the moment, the constraint hole of the nail bin frame blocks the nail bin rear mounting hook to move upwards, so that the constraint hook of the nail bin rear mounting hook blocks the rear part of the nail bin to separate from the nail bin frame to move upwards.

A blocking groove may be provided in a side surface of the cartridge knife channel. The blocking groove is positioned opposite to the rear mounting hook groove. The inclined wedge is provided with a limiting groove. And a blocking wire is arranged on the restraining hook of the mounting hook behind the nail bin. The barrier wire is arranged in the rear mounting hook groove. The rear mounting hook groove blocks the blocking wire of the restraint hook from moving back and forth in the nail bin. The driving piece pushes the inclined wedge arranged in the nail bin to move in the nail bin cutter groove. When the inclined wedge is arranged in the nail bin cutter groove, the blocking wire of the restraining hook bounces into the limiting groove of the inclined wedge from the rear mounting hook groove, and the blocking wire of the restraining hook blocks the inclined wedge to move back and forth in the nail bin cutter groove. When the driving piece pushes the inclined wedge to move forwards, the blocking wire of the restraining hook is separated from the limiting groove of the inclined wedge, and the blocking wire of the restraining hook is blocked by the driving piece and bounces into the nail bin cutter groove from the rear mounting hook groove. When the driving piece is separated from the inclined wedge and moves backwards to reset, the blocking wire of the restraint hook is separated from the blocking of the driving piece and then bounced into the blocking groove from the rear mounting hook groove; thereafter, when the driver is moved forward again, the blocking wire of the restraining hook crossing over the blocking groove of the cartridge knife slot and the rear mounting hook slot blocks the driver from moving forward beyond the blocking wire of the restraining hook.

The execution assembly of the invention comprises an execution piece and an execution piece seat. The executive seat and the executive are connected in an embedded mode through the executive mounting groove formed by the executive mounting block inserted into the opening. The executing part is provided with a nail box component and a nail anvil component. The driving part is provided with a driving rod and a driving head. The drive rod and the drive head are inserted into the embedded groove by an embedded block to form embedded connection of the drive head. The actuating member seat is provided with a seat sliding groove in the front-back direction, and the driving rod is arranged in the seat sliding groove. The executing piece is provided with an executing piece sliding groove in the front-back direction. The driving head is arranged in the execution piece sliding groove. When the actuator mounting groove and the insert groove are positioned in alignment with each other, a replaceable insert groove is formed. The replaceable insert is formed when the actuator mounting block and the insert are positioned in alignment with each other. When the replaceable mosaic block is inserted into the replaceable mosaic groove, the replaceable mosaic connection is formed. In the process of simultaneously moving the actuating element out of the actuating element seat and the driving head out of the driving rod: the first step, the driving piece moves along the execution piece sliding groove and the seat sliding groove, and the position of the embedded connection of the execution piece is aligned with the position of the embedded connection of the driving head to form a position of replaceable embedded connection; secondly, the replaceable embedding block is moved out of the replaceable embedding groove from the replaceable embedding connection, namely, the executive component can be moved out of the executive component seat and the driving head can be moved out of the driving rod at the same time; at the moment, the nail bin assembly and the nail anvil assembly in the executive component and the driving head can be selected. In the process of simultaneously mounting the actuator on the actuator seat and the drive head on the drive rod: the method comprises the following steps that firstly, a replaceable embedding groove is inserted into a replaceable embedding block to form replaceable embedding connection, at the moment, an executive piece seat and an executive piece are inserted into an executive piece installing groove through an executive piece installing block to form executive piece embedding connection, and a driving rod and a driving head are inserted into the embedding groove through an embedding block to form driving head embedding connection; secondly, the driving piece moves along the seat sliding groove and the executing piece sliding groove, so that the driving piece blocks the executing piece mounting block from moving out of the executing piece mounting groove, and the executing piece is mounted on the executing piece seat; meanwhile, the execution piece sliding groove blocks the insert from moving out of the insert groove, and the driving head is installed on the driving rod.

The execution piece can be internally provided with a positioning elastic piece. The driving head is provided with a groove. When the drive head is mounted in the actuator, the positioning spring acts on the recess of the drive head to restrain the actuator and the drive head at the location of the replaceable insert connection.

The implement may have a cartridge mounting block, an open cartridge mounting slot, and an open restraint slot therein. The execution piece sliding groove is provided with a nail anvil sliding groove in the front-back direction and a nail bin sliding groove in the front-back direction. The drive head has an upper beam and a lower beam. The upper beam of the driving head is positioned at the upper plane of the executing part sliding groove. The lower beam of the driving head is positioned at the lower plane of the executing part sliding groove and the opening of the restraining groove. The rear part of the nail bin assembly is provided with a restraining block. The nail anvil component and the nail bin component are rotatably supported by the executive component formed by inserting the nail bin mounting block into the nail bin mounting groove. When the driving head moves forwards along the nail anvil sliding chute, the lower beam of the driving head is inserted into the lower plane of the nail bin sliding chute, and the upper beam and the lower beam of the driving head enable the nail anvil assembly and the nail bin assembly to rotate, support and close around the rotation of the executing piece. When the driving head moves backwards along the nail anvil sliding groove and the nail bin sliding groove, the lower beam of the driving head pushes the restraint block of the nail bin assembly, and the upper beam and the lower beam of the driving head enable the nail anvil assembly and the nail bin assembly to rotate around the rotating support of the executing piece to be opened. During installation of the cartridge assembly onto the effector: firstly, a lower beam of a driving head moves backwards at an opening of a restraint slot of an executing piece to open the opening of the restraint slot; secondly, inserting the nail bin mounting block into the nail bin mounting groove through an opening of the nail bin mounting groove, rotating the rotating support of the executing piece at the moment, and driving the restraining block of the nail bin assembly to be transferred into the restraining groove of the executing piece; and thirdly, the lower beam of the driving head moves forwards at the opening of the restraint groove to close the opening of the restraint groove of the executive component, so that the lower beam of the driving head blocks the nail bin mounting block and the restraint block from moving out of the opening of the nail bin mounting groove and the opening of the restraint groove, and the nail bin assembly is mounted on the executive component. During removal of the cartridge assembly from the effector: the lower beam of the driving head moves backwards at the opening of the restraint slot of the executive component to open the opening of the restraint slot, and the nail bin mounting block and the restraint block are removed from the opening of the nail bin mounting slot and the opening of the restraint slot, so that the nail bin assembly can be removed out of the executive component; the staple cartridge assembly can be selected for use at this time.

Drawings

FIG. 1 is a reduced external view of a laparoscopic closing stapler with a cutting blade according to the present invention;

FIG. 2 is an external view of the actuator assembly and actuator of FIG. 1 in an open position;

FIG. 3 is an external view of the actuator seat and the drive rod of the actuator assembly of FIG. 2 formed as a replaceable mosaic piece;

FIG. 4 is an exterior view of the actuator and drive head of the actuator assembly of FIG. 2 illustrating the formation of a replaceable insert pocket;

fig. 5 is an external view illustrating a replaceable mosaic piece of fig. 3 and 4 formed in a replaceable mosaic joint when inserted into a replaceable mosaic slot;

FIG. 6 is an external view of the actuator and drive head of the actuator assembly of FIG. 2;

FIG. 7 is an external view of the actuator seat and drive rod of the actuator assembly of FIG. 2;

FIG. 8 is an external view showing the driving member of FIG. 2;

FIG. 9 is a front view showing the drive rod in the drive member of FIG. 8;

fig. 10 is an external view showing a driving head in the driving member of fig. 8;

FIG. 11 is an external view showing the actuator seat of FIG. 2;

FIG. 12 is an external view of the anvil assembly of FIG. 2;

FIG. 13 is an exterior view showing another side of the anvil assembly of FIG. 12;

FIG. 14 is an external view showing the cartridge assembly of FIG. 2;

FIG. 15 is an external view showing another side of the cartridge assembly of FIG. 14;

FIG. 16 is an external view showing the magazine rack of FIG. 14;

FIG. 17 is an external view of the cartridge assembly of FIG. 14 with portions broken away;

FIG. 18 is an external view showing another surface of FIG. 17;

FIG. 19 is an external view showing the front blocking mechanism installed in the cartridge assembly of FIG. 14;

FIG. 20 is an enlarged external view showing a stopper in FIG. 19;

FIG. 21 is an enlarged external view showing a stopper bracket of FIG. 20;

FIG. 22 is an enlarged external view of the anvil of FIG. 20;

FIG. 23 is an external view showing the shift lever in FIG. 19;

FIG. 24 is an enlarged external view of the staple and staple pusher block of FIG. 14;

FIG. 25 is an enlarged external view showing the slanting wedge of FIG. 14;

FIG. 26 is an enlarged external view showing the rear mounting hook of the staple cartridge of FIG. 14;

FIG. 27 is an enlarged external view showing a resilient positioning member in the anvil assembly of FIG. 12;

FIG. 28 is a top view illustrating closure between the cartridge assembly and anvil assembly of FIG. 2;

FIG. 29 is a sectional view taken from 29 to 29 in FIG. 28;

FIG. 30 is a top view illustrating the completed firing between the staple cartridge assembly and anvil assembly of FIG. 2;

FIG. 31 is a sectional view showing 31-31 in FIG. 30;

FIG. 32 is an external view showing a part of FIG. 5 with parts removed;

FIG. 33 is an external view of FIG. 2 with parts removed;

FIG. 34 is an external view of FIG. 28 with parts removed;

FIG. 35 is an external view of FIG. 30 with parts removed;

FIG. 36 is an external view of the driving member of FIG. 30 after it has been displaced rearwardly to reset the wedges and removed portions of the drive member;

FIG. 37 is an enlarged front view of the B-shaped staple of FIG. 36;

fig. 38 is an enlarged external view showing another stopper.

Detailed Description

In the following, by way of example, a preferred embodiment of the endoscopic closing stapler with a cutting knife according to the invention is described with reference to the accompanying drawings. It is to be understood that some or all of the figures are diagrammatic illustrations for purposes of illustrating a preferred embodiment of the invention and do not depict the actual dimensions of the portions shown. The embodiments that achieve the above and other objects and advantages of the present invention will be more clearly understood by reference to the detailed description of the preferred embodiments. In the drawings and the following description, the term "posterior" refers to a position close to the operator of the endoscopic closing stapler where the cutting knife is mounted, while the term "anterior" refers to a position away from the operator of the endoscopic closing stapler where the cutting knife is mounted; the term "upper" refers to above the operator of the endoscopic closing stapler where the cutting knife is mounted, while the term "lower" refers to below the operator of the endoscopic closing stapler where the cutting knife is mounted; the term "left" refers to the left of the stapler operator to which the cutting knife is mounted, and the term "right" refers to the right of the stapler operator to which the cutting knife is mounted. Other positional and orientational terms may be understood in light of the drawings and the following description. In order to highlight the figures and the description of the endoscopic closing stapler with mounted cutting knife and the related components of the present invention, the other components are not described in detail in the attached drawings. The structure, installation, application and action process of various components of the endoscope closing anastomat provided with the cutting knife can refer to relevant documents, and also refer to Chinese invention patent 'multipurpose endoscope surgical instrument' (application number: 201911292988.2).

As shown in fig. 1, a laparoscopic closing stapler 1 with a cutting knife mounted thereto includes an actuating assembly 2, an extension assembly 3 and an operating assembly 4. The extension assembly 3 connects the operation assembly 4 and the execution assembly 2. The extension member 3 is provided with a joint member 5. In the operating assembly 4 there is a drive member 6 and a cutting blade 7 (see fig. 8). Within the actuation assembly 2 is a cartridge assembly 8 and an anvil assembly 9 (see FIG. 2). The anvil tissue contacting surface 10 of the anvil assembly 9 has three rows of concave forming grooves 11 (see fig. 13) staggered. The cartridge module 8 has a cartridge 12 and a cartridge holder 13 (see fig. 14). The cartridge 12 is mounted on a cartridge carrier 13. Three adjacent rows of staple storage apertures 15 are staggered on the staple cartridge tissue contacting surface 14 of the staple cartridge 12 (see FIGS. 17, 18 and 24). Staple storage holes 15 are provided with staples 16 and staple pusher blocks 17. Staple 16 is mounted on top of staple pusher 17. When clamping tissue between cartridge assembly 8 and anvil assembly 9 (see fig. 28 and 29), the formation slots 11 on anvil assembly 9 correspond in position with the U-shaped staples 16 in cartridge 12.

The cartridge assembly 8 includes wedges 18 and a forward and rearward cartridge knife slot 19 (see FIGS. 14 and 18). The magazine frame 13 has a magazine slide 20 (see fig. 16) extending in the front-rear direction. The wedges 18 have guide blocks 21 (see fig. 25). The guide block 21 is inserted into a magazine runner 20 in the magazine holder 13 (see fig. 15). The cartridge tissue contacting surface 14 of the cartridge 12 and all of the staple storage apertures 15 in the cartridge 12 are located on the same side of the cartridge knife channel 19 of the cartridge assembly 8 (see fig. 14). The anvil assembly 9 (see fig. 13) has an anvil slot 22 and an anvil chute 23 in the front-rear direction. All of the formed slots 11 on the anvil assembly 9 are located on the same side of the anvil pocket 22 of the anvil assembly 9. The front of the drive member 6 has an upper beam 24 and a lower beam 25 (see fig. 8).

28-31, 34, 35 and 37, when clamping tissue between the cartridge assembly 8 and the anvil assembly 9, the driver 6 moves forward in the implement assembly 2, the upper beam 24 of the driver 6 moves forward along the anvil runner 23, and the lower beam 25 of the driver 6 moves forward along the cartridge runner 20; at this time, the driving member 6 pushes the guide block 21 of the wedge 18 to move forward along the cartridge sliding slot 20, so that the wedge 18 pushes the nail pushing block 17 to move upward in the nail storage hole 15, the nail pushing block 17 pushes the staple-shaped staples 16 to pierce through the tissue and press against the forming slot 11 to bend into the B-shaped staples 26 to be anastomosed, and the driving member 6 pushes the cutting knife 7 to move forward along the cartridge knife slot 19 and the anvil knife slot 22 to cut off the excess tissue on the side of the cartridge knife slot 19 and the anvil knife slot 22 which is not anastomosed by the B-shaped staples 26.

Because the nail bin tissue contact surface 14 of the nail bin 12 and all the nail storage holes 15 in the nail bin 12 are positioned at the same side of the nail bin cutter groove 19, all the forming grooves 11 on the nail anvil component 9 are positioned at the same side of the nail anvil cutter groove 22 of the nail anvil component 9, the section of the executing component 2 is obviously asymmetric, the sectional area of the executing component 2 of the endoscope closing anastomat 1 provided with the cutting knife is obviously smaller than that of the executing components of the endoscope cutting anastomat and the endoscope closing anastomat not provided with the cutting knife, therefore, the executing component of the endoscope closing anastomat provided with the cutting knife can conveniently enter a narrow operation area, and when the endoscope closing anastomat 1 provided with the cutting knife is inserted into an abdominal cavity or a thoracic cavity, the position of anastomotic tissue of the anastomotic nail 16 can be conveniently and quickly determined from the appearance of the endoscope closing anastomat 1 provided with the cutting knife, and the endoscopic cutting anastomat phase area of the endoscope closing anastomat not provided with the cutting knife is quickly symmetric to the sectional shape of the executing component The technical effects of expanding the operation range and reducing the operation time are achieved, and the technical effect of avoiding the operation of executing the endoscope closing anastomat 1 provided with the cutting knife by using the endoscope cutting anastomat or the endoscope closing anastomat not provided with the cutting knife by mistake is achieved. Because the guide block 21 of the inclined wedge 18 is inserted into the cartridge sliding groove 20 in the cartridge frame 13, when the driving member 6 pushes the guide block 21 of the inclined wedge 18 to move along the cartridge sliding groove 20, the guide block 21 of the inclined wedge 18 can prevent the inclined wedge 18 positioned on the same side of the knife groove 19 of the cartridge 12 from deviating in position, so that the inclined wedge 18 can prevent the position of the staples 16 from deviating when the inclined wedge 18 pushes the staple pushing block 17 to push the staples 16 to pierce the tissue to press against the forming groove 11 to form the anastomotic tissue after bending, and the technical effect of improving the quality of the operation can be achieved.

As shown in fig. 2, 13, 14, 19 to 23, 28 to 31, the actuator assembly 2 includes a front blocking mechanism 27. The front blocking mechanism 27 has a blocking block 28 and a shift lever 29. The stop block 28 has therein a stop frame 30 and an anvil 31. The anvil 31 is mounted on the blocking frame 30. A stop 28 and a lever 29 are mounted within cartridge assembly 8. Stop 28 can swing up and down in front of cartridge assembly 8. The shift lever 29 can move back and forth within the cartridge assembly 8. The swing mechanism is formed by inserting the front shifting block 32 into the front shifting groove 33 between the shifting lever 29 and the stop block 28. The front portion of the lever 29 causes the stopper 28 to swing up and down at the front portion of the cartridge assembly 8 by means of a swing mechanism. The front part of the nail anvil component 9 is provided with a positioning groove 34. When the nail box component 8 and the nail anvil component 9 are closed, the front part of the shift lever 29 pushes the blocking block 28 to swing upwards in the direction from the front part of the nail box component 8 to the front part of the nail anvil component 9, so that the blocking block 28 is inserted into the positioning groove 34 in the front part of the nail anvil component 9 and is blocked between the front part of the nail box component 8 and the front part of the nail anvil component 9. When the cutting knife 7 moves to the stop block 28, the cutting knife 7 cuts into the anvil 31 of the stop block 28, cutting off the excess tissue. When the space between the nail box component 8 and the nail anvil component 9 is opened, the front part of the shifting lever 29 pushes the blocking block 28 to swing downwards at the front part of the nail box component 8 towards the direction of separating from the positioning groove 34 at the front part of the nail anvil component 9.

The side wings 35 of the anvil assembly 9 have rear cam slots 36 (see fig. 13). The rear portion of the lever 29 has a rear dial 37 (see fig. 19). The rear shift block 37 of the shift lever 29 is inserted into the rear cam slot 36 at the side wing 35 of the anvil assembly 9 to form a cam mechanism (see fig. 2). The anvil assembly 9 pushes the rear shift block 37 via the rear cam slot 36 of the cam mechanism to move the shift lever 29 back and forth within the cartridge assembly 8. When the nail bin assembly 8 and the nail anvil assembly 9 are closed, the nail anvil assembly 9 pushes the rear shifting block 37 through the rear cam slot 36 in the cam mechanism, so that the shifting rod 29 moves forwards in the nail bin assembly 8, the front part of the shifting rod 29 enables the blocking block 28 to swing upwards in the direction from the front part of the nail bin assembly 8 to the front part of the nail anvil assembly 9 through the swinging mechanism, and the blocking block 28 is inserted into the positioning slot 34 in the front part of the nail anvil assembly 9 and then is blocked between the front part of the nail bin assembly 8 and the front part of the nail anvil assembly 9. When the nail cartridge assembly 8 and the nail anvil assembly 9 are opened, the nail anvil assembly 9 pushes the rear shifting block 37 through the rear cam slot 36 in the cam mechanism, so that the shifting rod 29 moves backwards in the nail cartridge assembly 8, and the front part of the shifting rod 29 enables the blocking block 28 to swing downwards in the front part of the nail cartridge assembly 8 towards the direction of being separated from the positioning slot 34 in the front part of the nail anvil assembly 9 through the swinging mechanism.

Because the nail bin assembly 8 and the nail anvil assembly 9 are clamping the tissue and when inosculating the tissue, the stop block 28 avoids the tissue from being squeezed out of the inosculating area of the nail bin assembly 8 and the nail anvil assembly 9, and because the stop block 28 is inserted into the positioning groove 34 in the front part of the nail anvil assembly 9, the forming groove 11 on the nail anvil assembly 9 can be ensured to correspond to the position of the inosculating nail 16 in the nail bin assembly 8, and because the cutting knife 7 is cut into the knife anvil 31 of the stop block 28 to cut off redundant tissue, the operation of complete inosculation and cutting of tissue can be realized at one time, the quality of the curved forming of the inosculating nail is improved, thereby achieving the technical effects of reducing the operation time and improving the operation quality.

As seen in fig. 14 and 26, after the cartridge is installed in cartridge assembly 8, hook 38 is installed. The cartridge rear mounting hook 35 has a resilient hook 39 and a restraining hook 40. The magazine 12 has a rear mounting hook slot 41 therein. Cartridge rear mounting hook 38 is mounted within rear mounting hook slot 41. The rear part of the magazine frame 13 is provided with a restriction hole 42. When the nail bin 12 is installed in the nail bin frame 13, the restraining hook 40 of the nail bin rear installing hook 38 is hooked on the rear installing hook groove 41 of the nail bin 12, and the elastic hook 39 of the nail bin rear installing hook 38 elastically deforms in the rear installing hook groove 41 and then springs into the restraining hole 42 of the nail bin frame 13; at this time, the constraining hole 42 of the magazine frame 13 blocks the rear magazine mounting hook 38 from moving upward, so that the constraining hook 40 of the rear magazine mounting hook 38 blocks the rear portion of the magazine 12 from moving upward off the magazine frame 13.

As shown in fig. 14, 16 and 32 to 36, the cartridge knife channel 19 has a blocking groove 44 in the side surface thereof. The blocking groove 44 is located opposite to the rear mounting hook groove 41. The wedges 18 have a retaining slot 45. A restraining hook 40 of the post cartridge mounting hook 38 has a stop wire 46 thereon. The blocking wire 46 is installed in the rear installation hooking groove 41. The rear mounting hook slot 41 blocks the blocking wire 46 of the restraining hook 40 from moving back and forth within the staple cartridge 12. The driver 6 pushes a wedge 18 mounted in the cartridge 12 to move in the cartridge knife channel 19. When the cam 18 is installed in the magazine pocket 19, the stop wire 46 of the restraining hook 40 springs from the rear installation hook slot 41 into the retention slot 45 of the cam 18, and the stop wire 46 of the restraining hook 40 blocks the cam 18 from moving back and forth in the magazine pocket 19. When the driving member 6 pushes the wedges 18 to move forward, the blocking wire 46 of the restraining hook 40 is separated from the limiting groove 45 of the wedges 18, and the driving member 6 blocks the blocking wire 46 of the restraining hook 40 from springing into the magazine slot 19 from the rear mounting hook groove 41. When the driving member 6 is separated from the inclined wedge 18 and moved backwards to be reset, the blocking wire 46 of the restraining hook 40 is separated from the blocking of the driving member 6 and then bounced into the blocking groove 44 from the rear mounting hook groove 41; thereafter, when the driver 6 moves forward again, the blocking wire 46 of the restraining hook 40, which straddles the blocking groove 44 of the cartridge knife slot 19 and the rear mounting hook groove 41, blocks the driver 6 from moving forward beyond the blocking wire 46 of the restraining hook 40. The rear nail bin mounting hook 38 enables the inclined wedge 18 not to be changed in position in the processes of storage, transportation and use, enables the nail bin 12 not to be reused after the nail bin 12 is used, and achieves the technical effect of guaranteeing safe use of the endoscope closing anastomat 1 provided with the cutting knife.

The actuator assembly 2 has an actuator 47 and an actuator seat 48 (see fig. 2). The actuator seat 48 and the actuator 47 are connected by inserting the actuator mounting block 49 into the open actuator mounting groove 50 to form an actuator insert (see fig. 5). Within implement 47 are cartridge assembly 8 and anvil assembly 9 (see FIG. 4). The driving member 6 has a driving rod 51 and a driving head 52 (see fig. 8 to 10). The drive rod 51 and the drive head 52 are inserted into the embedding slot 54 by the embedding block 53 to form the drive head embedding connection. The actuator seat 48 has a seat slide slot 55 (see fig. 11) in the forward-rearward direction, and the drive rod 51 is mounted in the seat slide slot 55 (see fig. 3). The actuator 47 has an actuator slide slot 56 (see fig. 7) in the front-rear direction. The drive head 52 is mounted within the actuator slide slot 56. When the implement mounting groove 50 and the insert groove 54 are located at positions aligned with each other, a replaceable insert groove 57 is formed (see fig. 4). When the actuator mounting block 49 and the insert 53 are positioned in alignment with each other, a replaceable insert 58 (see fig. 3) is formed. When the replaceable mosaic piece 58 is inserted into the replaceable mosaic slot 57, a replaceable mosaic connection is formed (see fig. 5). During the simultaneous removal of the actuator 47 from the actuator seat 48 and of the drive head 52 from the drive rod 51: firstly, the driving piece 6 moves along the execution piece sliding groove 56 and the seat sliding groove 55, and the position of the execution piece embedded connection is aligned with the position of the driving head embedded connection to form a position of replaceable embedded connection (see fig. 3-5); secondly, the replaceable insert block 58 is removed from the replaceable insert slot 57 in the replaceable insert connection, i.e. the actuator 47 can be simultaneously removed from the actuator seat 48 and the driving head 52 can be simultaneously removed from the driving rod 51; the nail box component 8, the nail anvil component 9 and the optional driving head 52 in the executive component 47 can be selected; the technical effects that the nail bin assembly 8, the nail anvil assembly 9 and the driving head 52 with various specifications can be replaced, and other various endoscopic surgical executing pieces can be replaced are achieved; the technical effects of simple, convenient, quick and safe replacement process are achieved; the technical effects of greatly reducing the cost of the endoscopic surgery and meeting the requirements of various purposes of the endoscopic surgery are achieved. During the simultaneous mounting of the actuator 47 on the actuator seat 48 and of the drive head 52 on the drive rod 51: firstly, inserting the replaceable insert slot 57 into the replaceable insert block 58 to form a replaceable insert connection (see fig. 3 to 5), wherein at this time, the actuator seat 48 and the actuator 47 are inserted into the actuator mounting slot 50 through the actuator mounting block 49 to form an actuator insert connection, and the driving rod 51 and the driving head 52 are inserted into the insert slot 54 through the insert block 53 to form a driving head insert connection; secondly, the driving piece 6 moves along the seat sliding groove 55 and the actuating piece sliding groove 56, so that the driving piece 6 blocks the actuating piece mounting block 49 from moving out of the actuating piece mounting groove 50, and the actuating piece 47 is mounted on the actuating piece seat 48; at the same time, the actuator slide 56 blocks the insert 53 from being removed from the insert groove 54, and the driving head 52 is mounted on the driving rod 51 (see fig. 2, 6, and 7).

As shown in fig. 10, 12, 13, 27 and 32, a positioning elastic member 59 is installed in the actuator 47. The drive head 52 has a recess 64. When the drive head 52 is mounted in the actuator 47, the positioning spring 59 acts on the recess 64 of the drive head 52, constraining the actuator 47 and the drive head 52 at the position of the replaceable insert 57.

As seen in fig. 4, 7, and 12-18, operative member 47 includes a cartridge mounting block 60, an open cartridge mounting slot 61 and an open restraining slot 62. The executing member slide groove 56 has an anvil slide groove 23 and a magazine slide groove 20. The drive head 52 has an upper beam 24 and a lower beam 25. The upper beam 24 of the drive head 52 is located at the upper plane of the actuator chute 56. The lower beam 25 of the drive head 52 is located at the lower plane of the actuator chute 56 and at the opening of the restraint slot 62. The rear portion of cartridge assembly 8 has a restraint 63. The anvil assembly 9 and the cartridge assembly 8 are rotatably supported by inserting the cartridge mounting block 60 into the cartridge mounting groove 61. As the drive head 52 moves forward along the anvil chute 23, the lower beam 25 of the drive head 52 is inserted at the lower plane of the cartridge chute 20, and the upper and

lower beams

24 and 25 of the drive head 52 cause the pivotal closure between the anvil assembly 9 and the cartridge assembly 8 about the pivoting support of the actuator. As the drive head 52 moves rearwardly along the anvil chute 23 and the cartridge chute 20, the lower beam 25 of the drive head 52 pushes against the restraint 63 of the cartridge assembly 8, and the upper beam 24 and the lower beam 25 of the drive head 52 cause the pivotal support of the anvil assembly 9 and the cartridge assembly 8 about the effector to open. During mounting of cartridge assembly 8 onto effector 47: in a first step, the lower beam 25 of the driving head 52 moves backward at the opening of the restriction slot 62 of the actuator 47 to open the opening of the restriction slot 62; secondly, inserting the nail bin mounting block 60 into the nail bin mounting groove 61 through the opening of the nail bin mounting groove 61, at the moment, rotating the rotating support of the executive component to drive the constraint block 63 of the nail bin assembly 8 to rotate into the constraint groove 62 of the executive component 47; third, lower beam 25 of drive head 52 is moved forward at the opening of constraining slot 62 to close the opening of constraining slot 62 of implement 47 such that lower beam 25 of drive head 52 blocks cartridge mounting block 60 and constraining block 63 from moving out of the opening of cartridge mounting slot 61 and the opening of constraining slot 62, mounting cartridge assembly 8 on implement 47. During removal of cartridge assembly 8 from effector 47: the lower beam 25 of the driving head 52 moves backward at the opening of the restriction groove 62 of the actuating member 47 to open the opening of the restriction groove 62, and the cartridge mounting block 60 and the restriction block 63 are removed from the opening of the cartridge mounting groove 61 and the opening of the restriction groove 62, so that the cartridge assembly 8 can be removed from the actuating member 47; the nail bin assembly 8 can be selected at this time; the technical effects of simple, convenient, quick and safe process for replacing the nail bin assemblies 8 with various specifications are achieved.

The stop 28 may be replaced with a stop 70. The stop block 70 has a cut groove 71 therein (see fig. 38). When the cutting knife 7 moves to the position of the block 70, the cutting knife 7 is inserted into the cutting groove 71 of the block 70 to cut off the redundant tissues. Because the nail bin assembly 8 and the nail anvil assembly 9 are clamping tissues and anastomosing tissues, the blocking block 70 prevents the tissues from being extruded out of the anastomotic region of the nail bin assembly 8 and the nail anvil assembly 9, and because the blocking block 70 is inserted into the positioning groove 34 at the front part of the nail anvil assembly 9, the forming groove 11 on the nail anvil assembly 9 and the anastomotic nail 16 in the nail bin assembly 8 can be ensured to correspond to each other in position, and because the cutting knife 7 can cut off redundant tissues in the cutting groove 71 of the blocking block 70, the operation of complete anastomosis and tissue cutting can be completed at one time, the quality of anastomotic nail bending formation is improved, thereby achieving the technical effects of reducing the operation time and improving the operation quality.

Claims

1. An endoscope closing anastomat provided with a cutting knife comprises an execution assembly, an extension assembly and an operation assembly; the extension component is connected with the operation component and the execution component; the executing component is provided with a nail bin component and a nail anvil component; a plurality of concave forming grooves are arranged on the tissue contact surface of the nail anvil component in a staggered manner; the nail bin assembly is provided with a nail bin and a nail bin frame; the nail bin is arranged on the nail bin frame; a plurality of nail storage holes are arranged on a nail bin tissue contact surface of the nail bin in a staggered manner, and anastomotic nails and nail pushing blocks are installed in the nail storage holes; the anastomosis nail is arranged at the top of the nail pushing block; the operating assembly is internally provided with a driving piece and a cutting knife; the front part of the driving piece is provided with an upper beam and a lower beam; when tissue is clamped between the nail bin assembly and the nail anvil assembly, the forming grooves on the nail anvil assembly correspond to the positions of the anastomotic nails in the nail bin;

the method is characterized in that: the nail bin assembly is provided with an inclined wedge and a nail bin cutter groove in the front-back direction; a nail bin chute in the front-back direction is arranged in the nail bin frame; the staple cartridge tissue contact surface of the staple cartridge and all of the staple storage apertures in the staple cartridge are located on the same side of the staple cartridge knife channel; the nail anvil component is provided with a nail anvil cutter groove and a nail anvil chute in the front and back directions; all the forming grooves on the nail anvil component are positioned on the same side of the nail anvil knife groove of the nail anvil component;

when tissue is clamped between the nail bin assembly and the nail anvil assembly, the driving part moves forwards in the executing assembly, the upper beam of the driving part moves forwards along the nail anvil sliding groove, and the lower beam of the driving part moves forwards along the nail bin sliding groove; at the moment, the driving piece pushes the inclined wedge to move forwards, the inclined wedge pushes the nail pushing block to move upwards in the nail storage hole, the nail pushing block pushes the anastomosis nail to pierce the tissue to be pressed on the forming groove to be bent and formed so as to be anastomosed with the tissue, and the driving piece pushes the cutting knife to move forwards along the nail bin cutter groove and the nail anvil cutter groove to cut off redundant tissue on the side, which is not anastomosed by the anastomosis nail, of the nail bin cutter groove and the nail anvil cutter groove.

2. An endoscope closing anastomat provided with a cutting knife according to claim 1, wherein the inclined wedge is provided with a guide block; the guide block is inserted into the nail bin chute in the nail bin frame; the driving piece pushes the guide block of the inclined wedge to move along the nail bin chute.

3. A cutting blade mounted laparoscopic closing stapler as claimed in claim 1, wherein said actuating assembly includes a front stop mechanism; the front blocking mechanism is provided with a blocking block and a deflector rod; the blocking block and the driving lever are arranged in the nail bin assembly; the blocking block can swing up and down at the front part of the nail bin assembly; a front shifting block is inserted into the front shifting groove between the shifting rod and the blocking block to form a swing mechanism; the front part of the deflector rod enables the blocking block to swing up and down on the front part of the nail bin assembly through the swing mechanism; when the nail bin assembly and the nail anvil assembly are closed, the front part of the shift lever pushes the blocking block to swing upwards in the direction from the front part of the nail bin assembly to the front part of the nail anvil assembly, so that the blocking block is blocked between the front part of the nail bin assembly and the front part of the nail anvil assembly; when the nail bin assembly and the nail anvil assembly are opened, the front part of the shift lever pushes the blocking block to swing downwards in the direction of separating from the nail anvil assembly.

4. An endoscopic closing stapler with a cutting knife according to claim 3, characterized in that the front part of the nail anvil assembly is provided with a positioning groove; when the nail bin assembly and the nail anvil assembly are closed, the blocking block swings upwards in the direction from the front part of the nail bin assembly to the front part of the nail anvil assembly, so that the blocking block is inserted into the positioning groove in the front part of the nail anvil assembly and then is blocked between the front part of the nail bin assembly and the front part of the nail anvil assembly; when the nail bin component and the nail anvil component are opened, the blocking block swings downwards in the front part of the nail bin component towards the direction of separating from the positioning groove in the front part of the nail anvil component.

5. A laparoscopic closing stapler with a cutting knife according to claim 3, wherein said shifter is movable back and forth within said cartridge assembly; the side wing of the nail anvil component is provided with a rear cam groove; the rear part of the deflector rod is provided with a rear deflector block; the rear shifting block of the shifting lever is inserted into the rear cam groove at the side wing of the nail anvil assembly to form a cam mechanism; the nail anvil component pushes the rear shifting block through a rear cam groove in the cam mechanism to enable the shifting rod to move back and forth in the nail bin component; when the nail bin assembly and the nail anvil assembly are closed, the nail anvil assembly pushes the rear shifting block through a rear cam groove in the cam mechanism to enable the shifting rod to move forwards in the nail bin assembly, the front part of the shifting rod enables the blocking block to upwards swing in the direction from the front part of the nail bin assembly to the front part of the nail anvil assembly through the swinging mechanism, and the blocking block is inserted into the positioning groove in the front part of the nail anvil assembly and then is blocked between the front part of the nail bin assembly and the front part of the nail anvil assembly; when the nail bin assembly and the nail anvil assembly are opened, the nail anvil assembly pushes the rear shifting block through the rear cam groove in the cam mechanism to enable the shifting rod to move backwards in the nail bin assembly, and the front part of the shifting rod enables the blocking block to swing downwards in the front part of the nail bin assembly towards the direction of the positioning groove separated from the front part of the nail anvil assembly through the swinging mechanism.

6. The endoscopic closing stapler with the cutting knife according to claim 1, wherein a staple cartridge rear mounting hook is arranged in the staple cartridge assembly; an elastic hook and a constraint hook are arranged in the rear mounting hook of the nail bin; a rear mounting hook groove is formed in the nail bin; the nail bin rear mounting hook is mounted in the rear mounting hook groove; the rear part of the nail bin frame is provided with a restriction hole; when the nail bin is arranged in the nail bin frame, the restraining hook of the nail bin rear mounting hook is hooked on the rear mounting hook groove of the nail bin, and the elastic hook of the nail bin rear mounting hook is elastically deformed in the rear mounting hook groove and then bounces into the restraining hole of the nail bin frame; at the moment, the constraint hole of the nail bin frame blocks the nail bin rear mounting hook to move upwards, so that the constraint hook of the nail bin rear mounting hook blocks the rear part of the nail bin to separate from the nail bin frame to move upwards.

7. An endoscopic closing stapler with a cavity mounted cutting knife according to claim 6, characterized in that the side of the magazine knife slot has a blocking slot therein; the blocking groove is positioned opposite to the rear mounting hook groove; a limiting groove is formed in the inclined wedge; a blocking wire is arranged on the restraining hook of the nail bin rear mounting hook; the barrier wire is arranged in the rear mounting hook groove; the rear mounting hook groove blocks the blocking wire of the restraint hook from moving back and forth in the nail bin; the driving piece pushes a slant wedge arranged in the nail box component to move in the nail box cutter groove; when the inclined wedge is arranged in the nail bin cutter groove, the blocking wire of the restraining hook bounces into the limiting groove of the inclined wedge from the rear mounting hook groove, and the blocking wire of the restraining hook blocks the inclined wedge to move back and forth in the nail bin cutter groove; when the driving piece pushes the inclined wedge to move forwards, the blocking wire of the restraining hook is separated from the limiting groove of the inclined wedge, and the blocking wire of the restraining hook is blocked by the driving piece and bounces into the nail bin cutter groove from the rear mounting hook groove; when the driving piece is separated from the inclined wedge and moves backwards to reset, the blocking wire of the restraint hook is separated from the blocking of the driving piece and then bounced into the blocking groove from the rear mounting hook groove; thereafter, when the driver is moved forward again, the blocking wire of the restraining hook crossing over the blocking groove of the cartridge knife slot and the rear mounting hook slot blocks the driver from moving forward beyond the blocking wire of the restraining hook.

8. The laparoscopic closing stapler with a cutting burr of claim 1, wherein said actuating assembly has an actuating member and an actuating member seat; the executive component seat and the executive component are connected in an embedded manner by the executive component mounting groove of the executive component mounting block insertion opening; the executing part is provided with the nail box component and the nail anvil component; the driving part is internally provided with a driving rod and a driving head; the drive rod and the drive head are inserted into the embedding groove by an embedding block to form drive head embedding connection; the executing piece seat is provided with a seat sliding groove in the front-back direction; the driving rod is arranged in the seat sliding groove; the executing piece is provided with an executing piece sliding groove in the front-back direction; the driving head is arranged in the executing part sliding groove; when the execution piece mounting groove and the embedding groove are positioned at the position aligned with each other, a replaceable embedding groove is formed; forming a replaceable mosaic block when the executive mounting block and the mosaic block are positioned at the position aligned with each other; the replaceable mosaic connection is formed when the replaceable mosaic block is inserted into the replaceable mosaic slot.

9. A cutting knife mounted laparoscopic closing stapler as claimed in claim 8, wherein said actuating member is fitted with a positioning elastic member; the driving head is provided with a groove; when the driving head is installed in the actuating element, the positioning elastic element acts on the groove of the driving head to restrain the actuating element and the driving head at the position of the replaceable embedding connection.

10. The endoscopic closing stapler with a cutting knife according to claim 8, wherein the executing member has a cartridge mounting block, an open cartridge mounting slot and an open constraining slot; the executing part sliding groove is internally provided with a nail anvil sliding groove in the front-back direction and a nail bin sliding groove in the front-back direction; the driving head is provided with an upper beam and a lower beam; the upper beam of the driving head is positioned at the upper plane of the executing part sliding groove; the lower beam of the driving head is positioned at the lower plane of the executing part sliding groove and the opening of the restraining groove; the rear part of the nail bin assembly is provided with a restraining block; the nail anvil component and the nail bin component are rotatably supported by the executive component formed by inserting the nail bin mounting block into the nail bin mounting groove; when the driving head moves forwards along the nail anvil sliding chute, the lower beam of the driving head is inserted into the lower plane of the nail bin sliding chute, and the upper beam and the lower beam of the driving head enable the nail anvil assembly and the nail bin assembly to rotate around the rotating support of the executing piece to be closed; when the driving head moves backwards along the nail anvil sliding groove and the nail bin sliding groove, the lower beam of the driving head pushes the restraint block of the nail bin assembly, and the upper beam and the lower beam of the driving head enable the nail anvil assembly and the nail bin assembly to rotate around the rotating support of the executing piece to be opened.