CN210612175U - Inclined wedge of endoscope cutting anastomat - Google Patents

Abstract

An inclined wedge of an endoscope cutting anastomat adopts the technical characteristics that an inclined wedge seat and an inclined wedge sheet are arranged in the inclined wedge; the technical characteristic that the inclined wedge piece is installed on the inclined wedge seat when the groove of the inclined wedge piece is inserted on the support piece of the inclined wedge seat is adopted; the technical scheme that when the inclined wedge is positioned in the inclined wedge sliding groove, the inclined wedge sliding groove blocks the inclined wedge sheet from separating from the support sheet of the inclined wedge seat; the technical scheme that when the driving piece pushes the inclined wedge seat to move forwards, the support piece of the inclined wedge seat pushes the inclined wedge piece to move forwards, the inclined wedge piece pushes the nail pushing block to move upwards, and the nail pushing block pushes the anastomosis nail to move upwards is realized; the inclined wedge sheet cut and manufactured by adopting the plastic sheet or the metal sheet with higher hardness can bend the U-shaped anastomosis nail into the B-shaped anastomosis nail under the condition that the inclined wedge sheet does not deform, so that the inclined wedge seat and the inclined wedge sheet can be manufactured by adopting different materials respectively, the inclined wedge seat and the inclined wedge sheet are more convenient to process, the processing quality is higher, and the processing cost is lower.

Description

Inclined wedge of endoscope cutting anastomat

Technical Field

The utility model relates to a carve to one side of chamber mirror cutting anastomat that uses in laparoscopic surgery, in particular to carve to one side of chamber mirror cutting anastomat that uses in laparoscopic surgery, also in particular to carve to one side of chamber mirror cutting anastomat that uses in thoracoscopic surgery.

Background

In laparoscopic and thoracoscopic surgery, various manual, electric and surgical robot-used endoscopic cutting staplers are generally used for cutting and anastomosis operations in the abdominal cavity and in the thoracic cavity, which can reduce surgical trauma, shorten the operation time, and improve the operation quality.

Various endoscopic cutting staplers are described in US20100200639a1, US20170095250a1 and US20180317917a1, having an actuating assembly and drive. The executing component is provided with a nail box component and a nail anvil component. The nail bin assembly is provided with U-shaped anastomosis nails, nail pushing blocks and inclined wedges. Nail storage holes are arranged on the nail box tissue contact surface of the nail box component. And an anastomosis nail and a nail pushing block are arranged in the nail storage hole. The anastomosis nail consists of a nail beam and two nail legs. The ends of the two nail legs are respectively provided with nail tips. The nail beam of the anastomotic nail is arranged on the end surface of the nail pushing block. The anvil tissue contact surface of the anvil component is provided with concave forming grooves. The forming groove on the tissue contact surface of the nail anvil corresponds to the nail storing hole on the tissue contact surface of the nail bin. The driving member moves back and forth in the actuating assembly. The driving piece pushes the inclined wedge arranged in the nail bin assembly to move forwards. The inclined wedge pushes the nail pushing block to move upwards. The nail pushing block pushes the anastomosis nails to move upwards. After the nail pushing block pushes the nail tip of the anastomotic nail to abut against the forming groove, the two nail legs of the anastomotic nail are bent along the forming groove respectively, so that the nail tip of the anastomotic nail moves towards the nail beam direction, and the U-shaped anastomotic nail is bent into the B-shaped anastomotic nail.

The endoscopic cutting staplers described in US20100200639a1, US20170095250a1 and US20180317917a1 use wedges made in one piece. Because the diameter of an executing component of the endoscopic cutting anastomat is generally 12mm, the width of a wedge sliding chute in the nail bin component is only 0.6mm, and the thickness of a wedge sheet pushing a nail pushing block in a wedge is less than 0.6 mm. If the slanting wedge is manufactured by adopting a metal material, the slanting wedge sheet is required to be processed to reach the precision and the surface roughness of the technical requirement due to the complicated shape of the slanting wedge, the processing difficulty and the processing cost are very high, and therefore the slanting wedge of the existing endoscope cutting anastomat is processed into an injection molding by adopting a mold. The inclined wedge sheet with the thickness less than 0.6mm is processed into an injection molding part by adopting a mold from middle-hardness plastic under the influence of plastic fluidity during injection molding. When the inclined wedge sheet in the inclined wedge pushes the nail pushing block to bend the U-shaped anastomosis nail into the B-shaped anastomosis nail, the inclined wedge sheet is easy to bend and deform, so that the U-shaped anastomosis nail cannot be bent into a proper B-shaped anastomosis nail. According to the FDA official network message of the united states, there are 32000 more failures related to surgical staplers, including 9000 more serious injuries and 366 patients who died because of them, with more than 4 ten thousand adverse event reports received from 1/2011 to 3/31/2018. Such devices are claimed to cause deformity in wound anastomosis during operation, and to cause cracking in the wound site after anastomosis, often after staple use. This indicates that deflection of the wedge sheets in the wedges causes the staple to fail to bend into a proper B-shaped staple, and plays a significant role in these adverse events. After the endoscope cutting anastomat is used, the inclined wedge sheets in the bent and deformed inclined wedges are restored to a normal state and are not easy to find, so that the endoscope cutting anastomats of the U.S. Pat. Nos. 20120083836A1 and 20190105047A1 adopt a complex staple shape to make up for deformity of the staples after use. The unsatisfying point of the endoscope cutting anastomat is that under the condition that inclined wedge sheets in inclined wedges are easy to bend and deform, the complex shape of the anastomosis nail cannot compensate the deformity of the anastomosis nail after use, and the wound anastomosis deformity and the wound position after anastomosis are easy to crack are caused. On the other hand, in endoscopic surgery, U-shaped staples with different heights are required to be bent into B-shaped staples with different heights for tissues with different thicknesses. Commonly used U-shaped staples have a height of 2mm, 2.5mm, 3.5mm, 4mm, 4.5mm and 5.5mm and are bent into B-shaped staples having a height of 0.75mm, 1mm, 1.5mm, 1.8mm, 2mm and 2.5mm, respectively. In order to bend the U-shaped staples into the appropriate B-shaped staples, the higher the height of the U-shaped staples, the greater the stroke the wedges push the staple pusher upward. The existing endoscope cutting anastomat is unsatisfactory in that six wedges are needed for integrally processing and manufacturing the wedges if wedges with different strokes are adopted, so that the processing cost is high; if the inclined wedges with the same upward stroke are adopted, the inclination of the inclined wedges meets the requirement of the stroke of the highest U-shaped anastomosis nail for bending forming, namely the inclination of the inclined wedges is the largest, the resistance of the operation assembly for controlling the driving piece to move is also the largest, and the operation fatigue is easy to generate. Therefore, the inclined wedge of the endoscopic cutting anastomat needs to be further improved, so that the processing quality is better, the processing cost is lower, and the use is safer and more labor-saving.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an inclined wedge of a cavity mirror cutting anastomat, which adopts the technical characteristics that an inclined wedge seat and an inclined wedge sheet are arranged in the inclined wedge; the technical characteristic that the inclined wedge piece is installed on the inclined wedge seat when the groove of the inclined wedge piece is inserted on the support piece of the inclined wedge seat is adopted; the technical scheme that when the inclined wedge is positioned in the inclined wedge sliding groove, the inclined wedge sliding groove blocks the inclined wedge sheet from separating from the support sheet of the inclined wedge seat; the technical scheme that when the driving piece pushes the inclined wedge seat to move forwards, the support piece of the inclined wedge seat pushes the inclined wedge piece to move forwards, the inclined wedge piece pushes the nail pushing block to move upwards, and the nail pushing block pushes the anastomosis nail to move upwards is achieved. The oblique wedge of the endoscope cutting anastomat of the utility model adopts the plastic thin sheet with higher hardness or the oblique wedge sheet which is cut and manufactured by the metal thin sheet, so that the U-shaped anastomosis nail can be bent into the B-shaped anastomosis nail under the condition that the oblique wedge sheet does not deform, and the oblique wedge seat and the oblique wedge sheet can be manufactured by different materials respectively, thereby leading the processing of the oblique wedge seat and the oblique wedge sheet to be more convenient, leading the processing quality to be higher and leading the processing cost to be lower; the technical effect of installing inclined wedge sheets with different slopes on the U-shaped anastomosis nails with different heights is achieved; therefore, the inclined wedge of the endoscope cutting anastomat has the advantages of better processing quality, lower processing cost, safer use and more labor saving.

The utility model aims at realizing through the following technical scheme:

the utility model discloses a chamber mirror cutting anastomat includes execute assembly and driving piece. The executing component is provided with a nail box component and a nail anvil component. The nail bin assembly is provided with U-shaped anastomotic nails, a nail pushing block, an inclined wedge and a nail bin tissue contact surface. Nail storage holes are arranged on the nail box tissue contact surface of the nail box component. And an anastomosis nail and a nail pushing block are arranged in the nail storage hole. The anastomosis nail consists of a nail beam and two nail legs. The ends of the two nail legs are respectively provided with nail tips. The nail beam of the anastomotic nail is arranged on the end surface of the nail pushing block. The anvil tissue contact surface of the anvil component is provided with concave forming grooves. The forming groove on the tissue contact surface of the nail anvil corresponds to the nail storing hole on the tissue contact surface of the nail bin. The driving member moves back and forth in the actuating assembly. The driving piece pushes the inclined wedge arranged in the nail bin assembly to move forwards. The inclined wedge pushes the nail pushing block to move upwards. The nail pushing block pushes the anastomosis nails to move upwards. After the nail pushing block pushes the nail tip of the anastomotic nail to abut against the forming groove, the two nail legs of the anastomotic nail are bent along the forming groove respectively, so that the nail tip of the anastomotic nail moves towards the nail beam direction, and the U-shaped anastomotic nail is bent into the B-shaped anastomotic nail.

The inclined wedge is provided with an inclined wedge seat and an inclined wedge sheet. The inclined wedge seat is provided with a support sheet. The inclined wedge sheet is provided with a groove. When the groove of the inclined wedge piece is inserted on the support piece of the inclined wedge seat, the inclined wedge piece is installed on the inclined wedge seat. When the driving piece pushes the inclined wedge seat to move forwards, the support piece of the inclined wedge seat pushes the inclined wedge piece to move forwards, the inclined wedge piece pushes the nail pushing block to move upwards, and the nail pushing block pushes the anastomosis nail to move upwards. The oblique wedge sheet manufactured by cutting the plastic sheet or the metal sheet with higher hardness than the plastic oblique wedge of the existing endoscope cutting anastomat can bend the U-shaped anastomosis nail into the proper B-shaped anastomosis nail under the condition that the oblique wedge sheet does not deform, so that the oblique wedge has better processing quality, lower processing cost and safer use. For a higher U-shaped anastomosis nail, when the U-shaped anastomosis nail is bent into a B-shaped anastomosis nail, the stroke of the nail pushing block pushed by the inclined wedge to move upwards is larger, an inclined wedge sheet with a larger inclination is required to be installed, and the moving resistance of the driving piece is larger at the moment. For a short U-shaped anastomosis nail, when the U-shaped anastomosis nail is bent into a B-shaped anastomosis nail, the stroke of pushing the nail pushing block to move upwards by the inclined wedge is small, only the inclined wedge sheet with small inclination needs to be installed, and at the moment, the moving resistance of the driving piece is small. The slanting wedge sheets with different slopes can be processed into different colors for distinguishing. In the endoscopic surgery, different operating forces can be adopted for tissues with different thicknesses, so that the operation fatigue is not easy to generate. According to the requirements of endoscopic surgery, inclined wedge sheets with different slopes can be arranged on the same inclined wedge seat and used for bending U-shaped anastomosis nails with different heights in the same nail bin assembly into proper B-shaped anastomosis nails.

The left and right sides of the inclined wedge seat of the endoscope cutting anastomat of the utility model are respectively provided with a support sheet. The left side and the right side of the inclined wedge seat can be respectively provided with two support pieces, also can be respectively provided with one support piece, and also can be provided with one support piece on one side and two support pieces on the other side.

The utility model discloses a there is a brace one side of carving the seat to one side of chamber mirror cutting anastomat. One side of the inclined wedge seat can be provided with one supporting piece or two supporting pieces.

The utility model discloses a nail storehouse subassembly of chamber mirror cutting anastomat is interior to have carves the spout to one side. When the inclined wedge is positioned in the inclined wedge sliding groove, the inclined wedge sliding groove blocks the inclined wedge sheet to be separated from the support sheet of the inclined wedge seat.

Drawings

FIG. 1 is an external view showing the opening of the actuating assembly of the endoscopic cutting stapler of the present invention;

FIG. 2 is a bottom plan view showing the closing of the actuator assembly of FIG. 1;

FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;

FIG. 4 is an enlarged view showing the area A of FIG. 3;

FIG. 5 is an external view of the driver, wedges, staple pusher block and staples within the actuation assembly of FIG. 2;

fig. 6 is an enlarged view showing a region B of fig. 5;

FIG. 7 is a bottom view illustrating the firing of the implement assembly of FIG. 1;

FIG. 8 is a cross-sectional view taken at 8-8 of FIG. 7;

FIG. 9 is an enlarged view showing a region C of FIG. 8;

FIG. 10 is an external view showing the driver, wedges, staple pusher block and staples within the actuation assembly of FIG. 7;

FIG. 11 is an enlarged view showing a region D of FIG. 10;

FIG. 12 is an external view showing the anvil assembly of FIG. 1;

FIG. 13 is a top view illustrating the cartridge assembly of FIG. 1;

FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 13;

FIG. 15 is an enlarged external view of the pusher block and staple of FIG. 5;

FIG. 16 is an enlarged external view showing the staple pusher of FIG. 15;

FIG. 17 is an enlarged external view of the staple of FIG. 15;

FIG. 18 is an enlarged external view showing the slanting wedge of the first embodiment;

FIG. 19 is an enlarged external view showing the slanting wedge seat of FIG. 18;

FIG. 20 is an enlarged front view showing one side wedge plate of FIG. 18;

FIG. 21 is an enlarged front view showing the other side wedge piece of FIG. 18;

FIG. 22 is an enlarged front view showing another side wedge piece of the first embodiment;

FIG. 23 is an enlarged front view showing another side wedge piece of the first embodiment;

FIG. 24 is an enlarged external view showing another slanting wedge of the first embodiment;

FIG. 25 is an enlarged external view showing another staple pusher and staple of the first embodiment;

FIG. 26 is an enlarged external view showing the staple pusher of FIG. 25;

FIG. 27 is an enlarged external view of the staple of FIG. 25;

FIG. 28 is an external view of an alternative driver, ramp wedge, staple pusher and staple shown upon closure of the actuation assembly;

fig. 29 is an enlarged view showing an area E of fig. 28;

FIG. 30 is an external view of an alternative drive member, wedges, staple pusher blocks and staples as the implement assembly is fired;

fig. 31 is an enlarged view showing a region F of fig. 30;

FIG. 32 is an enlarged external view showing a slanting wedge of the second embodiment;

FIG. 33 is an enlarged external view showing the slanting wedge seat of FIG. 32;

FIG. 34 is an enlarged front view showing one side of the side wedge plate of FIG. 32;

FIG. 35 is an enlarged front view showing the other side wedge piece of FIG. 32;

FIG. 36 is an enlarged external view showing a slanting wedge of the third embodiment;

FIG. 37 is an enlarged external view showing the slanting wedge seat of FIG. 36;

FIG. 38 is an enlarged external view showing a slanting wedge of the fourth embodiment;

FIG. 39 is an enlarged external view showing the slanting wedge seat of FIG. 38;

FIG. 40 is an enlarged external view showing a slanting wedge of the fifth embodiment;

FIG. 41 is an enlarged external view showing the slanting wedge seat of FIG. 40;

FIG. 42 is an enlarged external view showing the wedges for fitting the slanting wedge pieces having different slopes.

Detailed Description

The following description will be made, by way of example, with reference to the accompanying drawings, of a preferred embodiment of the wedge of the endoscopic cutting stapler according to the present invention. The scope of the invention is indicated in the claims. 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 actual manner in which the above-recited and other objects and advantages of the invention are obtained 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 location close to the operator of the endoscopic cutting stapler, while the term "anterior" refers to a location remote from the operator of the endoscopic cutting stapler. The term "upper" refers to the position of the anvil assembly, while the term "lower" refers to the position of the cartridge assembly.

In order to highlight the figures and the description of the wedge and the related parts of the endoscopic cutting stapler of the present invention, other parts are not described in detail in the attached drawings. Reference is made to the various patents and other documents cited in this specification in connection with the construction, installation, use and course of action of the components of various endoscopic cutting staplers.

As shown in fig. 1, an endoscopic cutting stapler (not shown) has an actuating assembly 1 and a driving member 2. The executing component 1 is provided with a cartridge component 3 and an anvil component 4. Cartridge assembly 3 includes staples 5, a staple pusher 6, and wedges 7 (see fig. 2-6). The anvil tissue contacting surface 8 of the anvil assembly 4 has a concave shaped slot 9 (see fig. 12) arranged therein. The cartridge tissue contacting surface 10 of the cartridge module 3 is provided with staple storage holes 11 (see fig. 13). Staples 5 and staple pusher blocks 6 are installed in the staple storage holes 11 (see fig. 3 and 4). The staple 5 consists of a staple beam 12 and two staple legs 13 and 14 (see fig. 17). The ends of the two legs 13 and 14 have spikes 15 and 16, respectively. The staple beam 12 of the staple 5 is mounted on the end face of the staple pusher 6 (see fig. 15 to 17). The forming groove 9 on the tissue contact surface 8 of the anvil and the staple storing hole 11 on the tissue contact surface 10 of the staple cartridge are positioned correspondingly (see fig. 3 and 4). The driver 2 moves back and forth within the actuator assembly 1. The driver 2 pushes forward a ramp wedge 7 mounted in the cartridge assembly 3. The inclined wedge 7 pushes the nail pushing block 6 to move upwards. The staple pushing block 6 pushes the staples 5 to move upwards. After the pusher block 6 pushes the tips 15 and 16 of the staples 5 against the forming groove 9, the two legs 13 and 14 of the staples 5 are bent along the forming groove 9, respectively, so that the tips 15 and 16 of the staples 5 are moved towards the staple beam 12, bending the U-shaped staples 5 into B-shaped staples 17 (see fig. 2 to 9).

As shown in fig. 18 to 21, the wedges 7 of the first embodiment of the endoscopic cutting stapler of the present invention have a wedge seat 18 and wedge sheets 19 and 20. The slanting wedge seat 18 has two supporting pieces 21 and 22 on the left and right sides thereof, respectively. The inclined wedge pieces 19 and 20 have grooves 23 and 24, respectively. The cam plates 19 and 20 are mounted on the cam seat 18 when the grooves 23 and 24 of the cam plates 19 and 20 are inserted in the legs 21 and 22 of the cam seat 18, respectively.

A sloped wedge chute 25 (see FIG. 14) is provided in cartridge assembly 3. When the wedges 7 are located in the wedge chute 25, the wedge chute 25 blocks the wedge pieces 19 and 20 from disengaging from the legs 21 and 22 of the wedge socket 18. When the driving member 2 pushes the slanting wedge seat 18 to move forward, the support pieces 21 and 22 of the slanting wedge seat 18 push the slanting wedge pieces 19 and 20 to move forward, respectively, and the slanting wedge pieces 19 and 20 push the nailing block 6 to move upward (see fig. 2 to 9). The utility model discloses a carve 7 to one side of chamber mirror cutting anastomat adopts and carves the plastic sheet or the foil of higher hardness to one side than the plastics of current chamber mirror cutting anastomat and cuts the piece 19 and 20 of carving to one side of making and can be carved the staple 17 of suitable B shape with U-shaped anastomotic nail 5 bending under the condition that carves piece 19 and 20 not produce the deformation to one side. Thereby preventing the phenomena of deformity after the anastomosis nail 5 is used, deformity of wound anastomosis and cracking of wound position after the anastomosis. The precision and surface roughness of the wedge pieces 19 and 20 produced by cutting are high, but the processing cost is low. The shape of the inclined wedge seat 18 is simpler than that of an inclined wedge of the existing endoscope cutting anastomat, the support pieces 21 and 22 of the inclined wedge seat 18 are only used for respectively pushing the inclined wedge pieces 19 and 20 to move, the technical requirements on precision and surface roughness are not high, and the processing cost is low.

For the U-shaped staples 5 with higher height, when the U-shaped staples 5 are bent into B-shaped staples 17, the stroke of the inclined wedges 7 for pushing the staple pushing block 6 to move upwards is larger, inclined wedge sheets 19 and 20 with larger inclination need to be installed, and the resistance to the movement of the driving piece 2 is larger at the moment. For shorter staples 26, the stroke of wedges 27 pushing staple pusher 38 upward when bending staple 26 into a B-shaped staple 28 is smaller, and only the smaller slope of wedge sheets 29 and 30 need be installed, with less resistance to movement of driver 2 (see fig. 22-31).

The wedges 27 have wedge seats 18 and wedge sheets 29 and 30 (see fig. 22-24). The inclined wedge pieces 29 and 30 have grooves 31 and 32, respectively. The cam sheets 29 and 30 are mounted on the cam seat 18 when the grooves 31 and 32 of the cam sheets 29 and 30 are inserted into the legs 21 and 22 of the cam seat 18, respectively. Staple 26 is comprised of a staple beam 33 and two staple legs 34 and 35. The ends of the two legs 34 and 35 have spikes 36 and 37, respectively. The staple beams 33 of staples 26 are mounted on the end faces of staple pusher blocks 38 (see fig. 25-27). When the driving member 2 pushes the slanting wedge seat 18 to move forward, the support pieces 21 and 22 of the slanting wedge seat 18 push the slanting wedge pieces 29 and 30, respectively, to move forward, and the slanting wedge pieces 29 and 30 push the nail pushing block 38 to move upward. Staple pusher 38 pushes staples 26 upward (see fig. 28-31).

The slanting wedge sheets with different slopes can be processed into different colors for distinguishing. In the endoscopic surgery, different operating forces can be adopted for tissues with different thicknesses, so that the operation fatigue is not easy to generate. Wedges 80 (see FIG. 42) having different slopes of wedge sheets 19, 20, 29 and 30 mounted on the same wedge mount 18 may also be used to bend staples of different heights in the same cartridge assembly into the appropriate B-shaped staples as desired for laparoscopic surgery.

As shown in fig. 32 to 35, the slanting wedge 40 of the second embodiment of the endoscopic cutting stapler of the present invention has a slanting wedge seat 41 and slanting wedge pieces 42 and 43. The slanting wedge seat 41 has a support piece 44 and a support piece 45 on the left and right sides, respectively. The inclined wedge pieces 42 and 43 have grooves 46 and 47, respectively. The slanting wedge pieces 42 and 43 are mounted on the slanting wedge seat 41 when the grooves 46 and 47 of the slanting wedge pieces 42 and 43 are inserted in the legs 44 and 45 of the slanting wedge seat 41, respectively. When the driving member 2 pushes the slanting wedge seat 41 to move forward, the support pieces 44 and 45 of the slanting wedge seat 41 push the slanting wedge pieces 42 and 43, respectively, to move forward.

The utility model discloses a carving 40 to one side of the second embodiment of chamber mirror cutting anastomat also can realize the utility model discloses a carve 7 to one side in the first embodiment, carve 27 to one side and carve other each item technical characteristic, technical scheme and the technological effect in 80 to one side.

As shown in fig. 36 and 37, the slanting wedge 50 of the third embodiment of the endoscopic cutting stapler of the present invention has a slanting wedge seat 51 and slanting wedge pieces 42 and 43. The slanting wedge seat 51 has a support 54 on one side and two supports 55 on the other side. The cam plates 42 and 43 are mounted on the cam seat 51 when the grooves 46 and 47 of the cam plates 42 and 43 are inserted into the legs 54 and 55 of the cam seat 51, respectively. When the driver 2 pushes the slanting wedge seat 51 to move forward, the legs 54 and 55 of the slanting wedge seat 51 push the slanting wedge pieces 42 and 43 to move forward, respectively.

The utility model discloses a carve 50 to one side of cavity mirror cutting anastomat's third embodiment also can realize the utility model discloses a carve 7 to one side in the first embodiment, carve 27 to one side and carve other each item technical characteristic, technical scheme and the technological effect in 80 to one side.

As shown in fig. 38 and 39, the wedge 60 of the fourth embodiment of the endoscopic cutting stapler of the present invention has a wedge seat 61 and a wedge sheet 42. Two support pieces 63 are arranged on one side of the inclined wedge seat 61. The cam plate 42 is mounted on the cam seat 61 when the groove 46 of the cam plate 42 is inserted into the leg 63 of the cam seat 61. When the driving member 2 pushes the slanting wedge seat 61 to move forward, the support 63 of the slanting wedge seat 61 pushes the slanting wedge 42 to move forward.

The utility model discloses a carve 60 to one side of the fourth embodiment of chamber mirror cutting anastomat also can realize the utility model discloses a carve 7 to one side in the first embodiment, carve 27 to one side and carve other each item technical characteristic, technical scheme and the technological effect in 80 to one side.

As shown in fig. 40 and 41, the wedge 70 of the fifth embodiment of the endoscopic cutting stapler of the present invention has a wedge seat 71 and a wedge sheet 42. One side of the slanting wedge seat 71 has a support piece 73. The cam plate 42 is mounted on the cam seat 71 when the groove 46 of the cam plate 42 is inserted into the leg 73 of the cam seat 71. When the driver 2 pushes the slanting wedge seat 71 to move forward, the support piece 73 of the slanting wedge seat 71 pushes the slanting wedge piece 42 to move forward.

The utility model discloses a carve 70 to one side of the fifth embodiment of chamber mirror cutting anastomat also can realize the utility model discloses a carve 7 to one side in the first embodiment, carve 27 to one side and carve other each item technical characteristic, technical scheme and the technological effect in 80 to one side.

According to the above-mentioned detailed introduction can know, carve to one side with current various chamber mirror cutting anastomats and compare, the utility model discloses a chamber mirror cutting anastomat carves to one side has following technological effect:

the slanting wedge of the endoscope cutting anastomat adopts the technical characteristics that the slanting wedge is provided with a slanting wedge seat and a slanting wedge sheet; the technical characteristic that the inclined wedge piece is installed on the inclined wedge seat when the groove of the inclined wedge piece is inserted on the support piece of the inclined wedge seat is adopted; the technical scheme that when the inclined wedge is positioned in the inclined wedge sliding groove, the inclined wedge sliding groove blocks the inclined wedge sheet from separating from the support sheet of the inclined wedge seat; the technical scheme that when the driving piece pushes the inclined wedge seat to move forwards, the support piece of the inclined wedge seat pushes the inclined wedge piece to move forwards, the inclined wedge piece pushes the nail pushing block to move upwards, and the nail pushing block pushes the anastomosis nail to move upwards is achieved. The inclined wedge of the endoscope cutting anastomat of the utility model can achieve the technical effects that the inclined wedge seat and the inclined wedge sheet can be made of different materials, so that the inclined wedge seat and the inclined wedge sheet are more convenient to process, the processing quality is higher, and the processing cost is lower; the technical effect that the U-shaped anastomosis nail can be bent into the B-shaped anastomosis nail under the condition that the inclined wedge sheet can not deform by adopting the inclined wedge sheet which is cut and manufactured by the plastic sheet or the metal sheet with higher hardness than the plastic inclined wedge of the existing endoscope cutting anastomat is achieved; the technical effect of installing inclined wedge sheets with different slopes on the U-shaped anastomosis nails with different heights is achieved; therefore, the inclined wedge of the endoscope cutting anastomat is better in processing quality, lower in processing cost and safer and more labor-saving in use, and the phenomena of deformity after the anastomosis of the anastomosis nail, deformity after the anastomosis of the wound and cracking of the wound position after the anastomosis are prevented.

It will thus be seen that the objects set forth above, including those made apparent from the preceding description, are efficiently attained. What has been described is merely a typical preferred embodiment of the invention, and certain changes may be made in the above construction without departing from the spirit and scope of the invention. The invention is not limited or restricted to the specific details set forth herein but is intended to cover any improvements or modifications that are obvious to those of ordinary skill in the art.

Claims (8)

1. An inclined wedge of a cavity mirror cutting anastomat is provided with an executing assembly and a driving piece, wherein the executing assembly is internally provided with a nail bin assembly and a nail anvil assembly, the nail bin assembly is internally provided with a U-shaped anastomosis nail, a nail pushing block, the inclined wedge and a nail bin tissue contact surface, nail storage holes are arranged on the nail bin tissue contact surface of the nail bin assembly, the anastomosis nail and the nail pushing block are installed in the nail storage holes, the nail consists of a nail beam and two nail legs, the end parts of the two nail legs are respectively provided with nail tips, the nail beam of the anastomosis nail is installed on the end surface of the nail pushing block, inwards concave anastomosis grooves are arranged on the nail anvil tissue contact surface of the nail anvil assembly, and the positions between the forming grooves on the nail anvil tissue contact surface and the nail storage holes on the nail bin tissue contact surface are mutually corresponding; the driving piece moves back and forth in the execution assembly, the driving piece pushes the inclined wedge arranged in the nail bin assembly to move forward, the inclined wedge pushes the nail pushing block to move upwards, and the nail pushing block pushes the anastomosis nails to move; after the nail pushing block pushes the nail tip of the anastomosis nail to abut against the forming groove, the two nail legs of the anastomosis nail are bent along the forming groove respectively, so that the nail tip of the anastomosis nail moves towards the nail beam direction, and the U-shaped anastomosis nail is bent into a B-shaped anastomosis nail;

the method is characterized in that: the inclined wedge is provided with an inclined wedge seat and an inclined wedge sheet, the inclined wedge seat is provided with a support sheet, and the inclined wedge sheet is provided with a groove; when the groove of the inclined wedge piece is inserted on the support piece of the inclined wedge seat, the inclined wedge piece is installed on the inclined wedge seat; when the driving piece pushes the inclined wedge seat to move forwards, the support piece of the inclined wedge seat pushes the inclined wedge piece to move forwards, the inclined wedge piece further pushes the nail pushing block to move upwards, and the nail pushing block pushes the anastomosis nail to move upwards.

2. The wedges of the endoscopic cutting stapler according to claim 1, wherein the support pieces are respectively arranged at the left and right sides of the wedge seat, and the grooves of the wedge pieces are inserted on the support pieces of the wedge seat.

3. The wedges of the endoscopic cutting stapler according to claim 2, wherein the wedges seat has two supporting pieces on each of the left and right sides.

4. The wedges of the endoscopic cutting stapler of claim 2, wherein the wedges seat has one of the supporting pieces on each of the left and right sides.

5. The wedges of the endoscopic cutting stapler of claim 2, wherein the wedge base has one of the legs on one side and two legs on the other side.

6. The wedges of the endoscopic cutting stapler according to claim 1, wherein one side of the wedge seat has one of the support pieces, and the groove of the wedge piece is inserted into the support piece of the wedge seat.

7. The wedges of the endoscopic cutting stapler according to claim 1, wherein there are two said support pieces on one side of the wedge seat, and the said groove of the wedge piece is inserted on the support piece of the wedge seat.

8. The wedges of the endoscopic cutting stapler of claim 1, wherein the cartridge assembly has a wedge chute therein; when the inclined wedge is positioned in the inclined wedge sliding groove, the inclined wedge sliding groove blocks the inclined wedge sheet to be separated from the support sheet of the inclined wedge seat.

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