阅读说明：本技术 一种具有安装安全保险装置的外科吻合器钉仓组件 (Surgical anastomat nail bin assembly with safety device ) 是由 王伟 江世华 王海龙 倪志甫 于 2019-11-14 设计创作，主要内容包括：本发明涉及的是一种具有安装安全保险装置的外科吻合器钉仓组件,是一种腔内组织上施加线性排的,并同时在此线性排吻合器间切割组织的外科吻合器配套装置,用于避免钉仓组件装配不到位,而导致无法使用。包括抵钉座、钉仓座、旋转头销、上转接头、下转接头、钉仓弹簧片、钉仓、推动块、推片、缝合钉、钉仓座销、上半壳体、下半壳体、H形块、防涨板、弧形卡扣、切割刀、驱动套、套管、转向拉钩和保护盖。所述的弧形卡扣内侧有一个限位块,尾端有两个卡脚,卡脚末端有一固定点。所述的下半壳体中间有一道切割刀导向槽,中后处有一弧形卡扣导向孔,末端有两个导向固定块,导向固定块前面有两个限位凹坑,所述切割刀组件末端有一限位口。(The invention relates to a nail bin assembly of a surgical anastomat with a safety device, which is a matched device of the surgical anastomat, wherein linear rows are applied to intracavity tissues, and the tissues are cut between the linear rows of the anastomats at the same time, and is used for avoiding the nail bin assembly from being assembled in place to cause the nail bin assembly to be unusable. The nail pushing device comprises a nail pushing seat, a nail bin seat, a rotating head pin, an upper rotating joint, a lower rotating joint, a nail bin spring piece, a nail bin, a pushing block, a pushing piece, a suturing nail, a nail bin seat pin, an upper half shell, a lower half shell, an H-shaped block, an anti-expansion plate, an arc-shaped buckle, a cutting knife, a driving sleeve, a steering drag hook and a protective cover. The inner side of the arc-shaped buckle is provided with a limiting block, the tail end of the arc-shaped buckle is provided with two clamping pins, and the tail ends of the clamping pins are provided with a fixed point. The middle of the lower half shell is provided with a cutting knife guide groove, an arc-shaped buckle guide hole is arranged at the middle and rear parts, the tail end of the lower half shell is provided with two guide fixing blocks, two limiting pits are arranged in front of the guide fixing blocks, and the tail end of the cutting knife component is provided with a limiting opening.)

1. A surgical anastomat nail bin assembly with a safety device is characterized by comprising a nail abutting seat, a nail bin seat, a rotating head pin, an upper rotating joint, a lower rotating joint, a nail bin spring piece, a nail bin, a pushing block, a pushing piece, a suturing nail, a nail bin seat pin, an upper half shell, a lower half shell, an H-shaped block, an anti-expansion plate, an arc-shaped buckle, a cutting knife, a driving sleeve, a steering drag hook and a protective cover;

the nail pushing seat is provided with six rows of a plurality of suturing nail guide grooves, the middle of the nail pushing seat is provided with a walking groove, the tail end of the nail pushing seat is provided with a protecting cover positioning hole, and the tail part of the nail pushing seat is provided with a positioning connecting hole;

the nail bin seat is of a U-shaped structure as a whole, a cutter trough is arranged in the middle, two positioning holes are formed in the tail end of the cutter trough, and a plurality of nail bin positioning holes are formed in the two sides of the cutter trough;

the nail bin is internally provided with a plurality of suture nail grooves, the middle of the nail bin is provided with a cutter trough, two sides of the nail bin are provided with a plurality of positioning clamping points, the lower end of the nail bin is provided with a pushing block positioning sliding groove, and the tail end of the nail bin is provided with two spring leaf holes;

a plurality of suturing nails and a corresponding number of pushing pieces are arranged in a plurality of suturing nail grooves arranged in the nail bin, a pushing block is arranged at the rear end of the nail bin in a pushing block positioning sliding groove, a nail bin positioning clamping point is arranged in a nail bin positioning hole of a nail bin seat, and a nail bin spring piece is arranged in a spring piece hole at the tail end of the nail bin;

a connecting piece connecting column is arranged in the middle of the upper rotating joint, two fixing through holes are arranged beside the upper rotating joint, and a cutting knife guide groove is arranged in the middle of the lower end of the upper rotating joint;

a connecting piece connecting column is arranged in the middle of the lower rotary joint, two fixing through holes are arranged beside the lower rotary joint, a cutting knife guide groove is arranged in the middle of the lower end of the lower rotary joint, two fixing planes are arranged on two sides of the cutting knife guide groove, the right fixing plane is slightly lower than the left plane, two triangular blocks are arranged at the front end of the left fixing plane, the height of each triangular block is flush with the left plane, and nail abutting seat fixing holes are arranged on two sides of each triangular block;

the front end of the steering drag hook is provided with a fixing through hole, and the middle of the steering drag hook is provided with a rotary fixing hole;

the front end of the connecting sheet is provided with a fixing hole, and the rear end of the connecting sheet is I-shaped;

the upper rotating joint and the lower rotating joint are installed together, a steering drag hook is installed in a gap on the right side, and the rotating head pin is installed on the fixing through holes of the upper rotating joint, the lower rotating joint and the steering drag hook which are concentric;

the nail pushing seat and the nail bin seat are arranged on the lower adapter, a nail bin seat pin is arranged in a nail pushing seat fixing hole of the lower adapter, the nail pushing seat and the connecting piece are arranged on a connecting piece connecting column of the upper adapter, and the connecting piece is arranged on a connecting piece connecting column of the lower adapter; the tail ends of the two connecting sheets respectively fall in the connecting sheet mounting groove of the upper half shell and the connecting sheet mounting groove of the lower half shell;

a connecting piece mounting groove is formed in the upper portion of the front end of the upper half shell, an anti-expansion plate mounting groove is formed in the lower portion of the front end of the upper half shell, and a cutting knife guide groove is formed in the middle of the lower end of the upper half shell;

the lower part of the front end of the lower half shell is provided with a connecting piece mounting groove, the upper part of the front end is provided with an anti-expansion plate mounting groove, the side edge of the front end is provided with a sleeve fixing block, the middle of the upper part is provided with a cutting knife guide groove, the middle is provided with a rotating fixing point, the middle and the rear are provided with an arc-shaped buckle guide hole, the tail end is provided with two guide fixing blocks, and two arc-shaped buckle limiting pits are arranged in front of;

the cutting knife consists of a cutting knife head and 4 pushing plates; both sides of the tail end of the push plate are provided with convex surfaces, the convex surface at the lower side is provided with a limiting opening, and the inner side of the tail end of the push plate is provided with 4 claws;

the upper half shell is arranged on the lower half shell, the anti-expansion plate is arranged in an anti-expansion plate mounting groove of the upper half shell and an anti-expansion plate mounting groove of the lower half shell, an H-shaped block is arranged in the middle of the anti-expansion plate, a rotary fixing hole of the steering drag hook is arranged on a rotary fixing point of the lower half shell, the cutting knife is arranged in a cutting knife guide groove of the upper half shell and a cutting knife guide groove of the lower half shell, a limit opening of the cutting knife is right opposite to an arc-shaped buckle guide hole of the lower half shell, and a driving sleeve is arranged in 4 claws;

the inner side of the arc-shaped buckle is provided with a limiting block, the tail end of the arc-shaped buckle is provided with two clamping pins, and the tail ends of the clamping pins are provided with a fixed point;

the arc-shaped buckle is wrapped at the outer sides of the upper half shell and the lower half shell, and the limiting block is arranged in the arc-shaped buckle guide hole of the lower half shell;

the sleeve is tubular, and the front end of the sleeve is provided with a fixing hole;

the sleeve is sleeved on the upper half shell and the lower half shell, and a sleeve fixing block of the lower half shell is arranged in the fixing hole;

the protective cover is arc-shaped, and a positioning block is arranged in the middle of the protective cover;

the protective cover is wrapped outside the sleeve, and the positioning block is arranged in the protective cover positioning hole of the nail abutting seat.

2. The surgical stapler cartridge assembly with installed safety feature of claim 1, wherein: the nail bin, the pushing block, the pushing piece, the upper half shell, the lower half shell, the arc-shaped buckle and the protective cover are made of plastic materials.

3. The surgical stapler cartridge assembly with installed safety feature of claim 1, wherein: the nail pushing seat, the nail bin seat, the rotating head pin, the upper rotating joint, the lower rotating joint, the nail bin spring piece, the nail bin seat pin, the H-shaped block, the anti-expansion plate, the cutting knife, the driving sleeve, the sleeve and the steering drag hook are made of stainless steel.

4. The surgical stapler cartridge assembly with installed safety feature of claim 1, wherein: the stitching nail is made of TA1 material.

5. The surgical stapler cartridge assembly with installed safety feature of claim 1, wherein: the front end of the arc-shaped buckle is arc-shaped, can be wrapped on the half shell and smoothly rotates, the inner wall is provided with a limiting block, the limiting block falls into a guide hole of the half shell, the limiting block protrudes out of the inner wall of the half shell and is just clamped in a limiting opening of the cutting knife assembly, the rear end of the clamping block is provided with two clamping feet, the width of the clamping block is slightly smaller than that of the half shell guide fixing block, and the tail end of the clamping foot is provided with a fixing point, can fall into a limiting pit of the half shell.

6. The surgical stapler cartridge assembly with installed safety feature of claim 1, wherein: before the nail bin assembly is matched with the surgical anastomat for use, the fixing points on the clamping feet of the arc-shaped buckles fall into the arc-shaped buckle limiting pits of the lower half shell, the arc-shaped buckle limiting blocks are positioned in the cutting knife limiting holes, and the cutting knife cannot be pushed forwards.

7. The surgical stapler cartridge assembly with installed safety feature of claim 1, wherein: when the nail bin assembly is matched with the anastomat for use, the arc-shaped buckle clamping pin slides into the connecting guide groove of the fixing rod along with the guide fixing block of the lower half shell of the nail bin assembly; the claw of the pushing plate of the cutting knife fixed on the driving sleeve is sleeved on the trigger push rod along the guide port of the trigger push rod, the nail cartridge assembly is rotated, the arc-shaped buckle cannot rotate due to limitation, so that the arc-shaped buckle limiting block slides out of the limit port of the cutting knife, the guide fixing block of the lower half shell is hung on the connecting fixing surface of the fixing rod at the moment, the cutting knife of the nail cartridge assembly can be pushed forward, and the instrument can be normally used.

Technical Field

The invention relates to a nail bin assembly of a surgical anastomat with a safety device, which is a matched device of the surgical anastomat, wherein linear rows are applied to intracavity tissues, and the tissues are cut between the linear rows of the anastomats at the same time, and is used for avoiding the condition that the nail bin assembly cannot be assembled in place to cause the condition of incapability of use.

Background

In the traditional or open process, a doctor directly contacts the surgical site, and the surgical incision has larger wound, so that the patient feels more painful and the postoperative recovery is slow. Whereas in minimally invasive surgery the patient is subjected to an abdominal or endoscopic procedure, the procedure being performed through a small incision or narrow cannula inserted through a wound in the patient. Minimally invasive surgery has advantages over open surgery due to its reduced patient trauma, shortened patient recovery periods and significantly reduced overall costs. To accommodate the specific needs of both endoscopic and abdominal approaches, endoscopic suturing devices have been developed to provide easier access to the surgical site for the surgeon. Typically, these stapling instruments include an articulatable tool component supported at the proximal end of the approximation stapling device. The tool assembly is selectively manipulable to enable a surgeon to manipulate the surgical device within a confined space. These instruments provide significant medical benefits to endoscopic procedures. Nevertheless, improvements in cost reduction and manufacturing complexity are desired.

The endoscope cutting anastomat used in the current market is complex in installation safety device, more in parts and low in reliability. Meanwhile, due to the fact that a plurality of complex parts are arranged, production cost is increased, medical cost of a patient is improved, and the medical surgical instrument is not beneficial to large-scale popularization and use.

Disclosure of Invention

The invention aims to provide a nail bin assembly of a surgical anastomat with a safety device for installation aiming at the defects.

A nail box assembly of a surgical anastomat with a safety device is realized by adopting the following technical scheme:

a surgical anastomat nail bin assembly with a safety device comprises a nail abutting seat, a nail bin seat, a rotating head pin, an upper rotating joint, a lower rotating joint, a nail bin spring piece, a nail bin, a pushing block, a pushing piece, suturing nails, a nail bin seat pin, an upper half shell, a lower half shell, an H-shaped block, an anti-expansion plate, an arc-shaped buckle, a cutting knife, a driving sleeve, a steering drag hook and a protective cover.

The nail pushing seat is provided with six rows of a plurality of suturing nail guide grooves, the middle of the nail pushing seat is provided with a walking groove, the tail end of the nail pushing seat is provided with a protecting cover positioning hole, and the tail part of the nail pushing seat is provided with a positioning connecting hole.

The nail bin seat is of a U-shaped structure as a whole, a cutter trough is arranged in the middle, two positioning holes are formed in the tail end of the nail bin seat, and a plurality of nail bin positioning holes are formed in the two sides of the nail bin seat.

The nail bin is internally provided with a plurality of suture nail grooves, the middle part of the nail bin is provided with a cutter trough, two sides of the nail bin are provided with a plurality of positioning clamping points, the lower end of the nail bin is provided with a pushing block positioning sliding groove, and the tail end of the nail bin is provided with two spring leaf holes.

The nail bin is characterized in that a plurality of suturing nails and pushing pieces with corresponding quantity are arranged in a plurality of suturing nail grooves arranged in the nail bin, a pushing block is arranged at the rear end of the nail bin in a pushing block positioning sliding groove, a nail bin positioning clamping point is arranged in a nail bin positioning hole of a nail bin seat, and a nail bin spring piece is arranged in a spring piece hole at the tail end of the nail bin.

The middle of the upper rotary joint is provided with a connecting piece connecting column, two fixing through holes are arranged beside the upper rotary joint, and the middle of the lower end of the upper rotary joint is provided with a cutting knife guide groove.

There is a connecting piece spliced pole in the middle of the lower adapter, and there are two fixing hole by the side, has a cutting knife guide way in the middle of the lower extreme, and cutting knife guide way both sides are equipped with two fixed planes, and the right side fixed plane is less than the left side plane a little, and left side fixed plane front end is equipped with two triangle blocks, and the triangle block height flushes with the left side plane, and both sides are equipped with supports the nail seat fixed orifices.

The front end of the steering drag hook is provided with a fixing through hole, and the middle of the steering drag hook is provided with a rotary fixing hole.

The front end of the connecting sheet is provided with a fixing hole, and the rear end of the connecting sheet is I-shaped.

The upper rotary joint and the lower rotary joint are installed together, a steering drag hook is installed in a gap on the right side, and the upper rotary joint, the lower rotary joint and a fixing through hole of the steering drag hook are concentric and provided with a rotary head pin.

The nail pushing seat and the nail bin seat are arranged on the lower adapter, and the nail bin seat pin is arranged in the nail pushing seat fixing hole of the lower adapter. Meanwhile, the connecting piece connecting column of the upper rotating joint is provided with the nail abutting seat and the connecting piece, and the connecting piece connecting column of the lower rotating joint is provided with the connecting piece. The tail ends of the two connecting sheets respectively fall into the connecting sheet mounting groove of the upper half shell and the connecting sheet mounting groove of the lower half shell.

There is a connecting piece mounting groove on the upper portion of the front end of the upper half shell, an anti-expansion plate mounting groove is arranged on the lower portion of the front end, and a cutting knife guide groove is arranged in the middle of the lower end.

There is a connecting piece mounting groove lower part half front end of the body, and the front end upper portion is equipped with prevents the board mounting groove that rises, and the front end side limit is equipped with the sleeve pipe fixed block, is equipped with the cutting knife guide way in the middle of the upper portion, has a rotatory fixed point in the middle of, and well back department has an arc buckle guiding hole, and the end has two direction fixed blocks, and the direction fixed block is preceding to have the spacing pit of two arc buckles.

The cutting knife comprises a cutting knife head and 4 pushing plates. Both sides of the tail end of the pushing plate are provided with convex surfaces, the convex surfaces on the lower side are provided with a limiting opening, and the inner side of the tail end of the pushing plate is provided with 4 claws.

The upper half shell is arranged on the lower half shell, the anti-expansion plate is arranged in an anti-expansion plate mounting groove of the upper half shell and an anti-expansion plate mounting groove of the lower half shell, and an H-shaped block is arranged in the middle of the anti-expansion plate. The rotary fixing hole of the steering drag hook is arranged on the rotary fixing point of the lower half shell, and the cutting knife is arranged in the cutting knife guide groove of the upper half shell and the cutting knife guide groove of the lower half shell. The limiting opening of the cutting knife is right opposite to the arc-shaped buckle guide hole of the lower half shell, and the 4 claws are provided with driving sleeves.

The inner side of the arc-shaped buckle is provided with a limiting block, the tail end of the arc-shaped buckle is provided with two clamping pins, and the tail ends of the clamping pins are provided with a fixed point.

The arc buckle wraps the outer sides of the upper half shell and the lower half shell, and the limiting block is arranged in the arc buckle guide hole of the lower half shell.

The sleeve is tubular, and the front end of the sleeve is provided with a fixing hole.

The sleeve is sleeved outside the upper half shell and the lower half shell, and a sleeve fixing block of the lower half shell is arranged in the fixing hole.

The protective cover is arc-shaped, and a positioning block is arranged in the middle of the protective cover.

The protective cover is wrapped outside the sleeve, and the positioning block is arranged in the protective cover positioning hole of the nail abutting seat.

The nail bin, the pushing block, the pushing piece, the upper half shell, the lower half shell, the arc-shaped buckle and the protective cover are made of plastic materials. The nail abutting seat, the nail bin seat, the rotating head pin, the upper rotating joint, the lower rotating joint, the nail bin spring piece, the nail bin seat pin, the H-shaped block, the anti-expansion plate, the cutting knife, the driving sleeve, the sleeve and the steering drag hook are made of stainless steel. The stitching nail is made of TA1 material.

The working principle is as follows:

a nail bin assembly of a surgical anastomat with a safety device is matched with an endoscopic cutting anastomat for use. Before the nail bin assembly is matched with the surgical anastomat for use, the fixing points on the clamping feet of the arc-shaped buckles fall into the arc-shaped buckle limiting pits of the lower half shell, the arc-shaped buckle limiting blocks are positioned in the cutting knife limiting holes, and the cutting knife cannot be pushed forwards.

When the nail bin assembly is matched with the anastomat for use, the arc-shaped buckle clamping pin slides into the connecting guide groove of the fixing rod along with the guide fixing block of the lower half shell of the nail bin assembly; meanwhile, the claw of the pushing plate of the cutting knife fixed on the driving sleeve is sleeved on the triggering push rod along the guide opening of the triggering push rod. Rotate the nail storehouse subassembly, the arc buckle is because of spacing unable rotation to arc buckle stopper roll-off cutting knife is spacing mouthful, and the direction fixed block of half lower casing is hung on the connection stationary plane of fixed rod at this moment. At the moment, the cutting knife of the nail bin assembly can be pushed forwards, and the instrument can be normally used.

A surgical stapler cartridge assembly with a safety guard installed has the advantages that:

the nail bin assembly of the surgical anastomat with the safety device is reasonable in design and compact in structure, and doctors can easily and surely install the nail bin assembly in place in the operation, so that the operation safety is guaranteed. The condition that other operations such as the assembly of the nail bin assembly is not in place, which causes the nail bin assembly to be unusable, is avoided. Meanwhile, the processing cost is greatly reduced due to the composition of few parts and the advanced design, so that the medical burden of a patient is relieved, and the popularization and the application in clinic are facilitated.

Drawings

The invention will be further explained with reference to the drawings, in which:

FIG. 1 is a schematic view of the present invention and a surgical stapler.

Fig. 2 is an overall schematic of the invention.

FIG. 3 is a schematic view of the inside (with the cannula removed) of the present invention prior to mating with a stapler.

Fig. 4 is an exploded view of the front end assembly of the present invention.

FIG. 5 is a schematic view of the staple cartridge assembly of the present invention.

Fig. 6 is a schematic view of the assembly of the lower half shell of the present invention.

Fig. 7 is an exploded view of the assembly of the upper and lower half shells of the present invention.

FIG. 8 is a schematic view of the nail seat structure of the present invention.

FIG. 9 is a schematic view of the cartridge seat structure of the present invention.

FIG. 10 is a front view of the staple cartridge of the present invention.

FIG. 11 is a schematic view of the backside of the staple cartridge of the present invention.

Fig. 12 is a schematic view of an upper adapter structure according to the present invention.

Fig. 13 is a schematic view of the front structure of the lower adapter of the present invention.

Fig. 14 is a schematic view of a back side construction of a down joint of the present invention.

Fig. 15 is a schematic view of the steering retractor of the present invention.

Fig. 16 is a schematic view of a connecting piece structure of the present invention.

FIG. 17 is a front view of the upper half shell of the present invention.

FIG. 18 is a schematic view of the back structure of the upper half shell according to the present invention.

Fig. 19 is a front view of the lower housing half of the present invention.

Fig. 20 is a back view of the lower housing half of the present invention.

Fig. 21 is a side view of the lower housing half of the present invention.

Fig. 22 is a schematic view of the structure of the cutting knife of the present invention.

FIG. 23 is a schematic view of an arc clip configuration of the present invention.

Fig. 24 is a schematic view of the construction of the bushing of the present invention.

FIG. 25 is a schematic view of the protective cover of the present invention.

FIG. 26 is a schematic view of a rod construction for a surgical stapler.

FIG. 27 is another directional view of a rod securing mechanism for a surgical stapler.

FIG. 28 is a front end portion of the firing push rod of the present invention.

Fig. 29 is a schematic view of the assembly position of the cutting knife and the arc-shaped buckle before the cutting knife is used together with the present invention.

FIG. 30 is a schematic view of the present invention in use with a surgical stapler.

FIG. 31 is a schematic view of the cutting blade and firing rod assembly used in conjunction with the present invention.

Figure 32 is a schematic view of the assembled and fixed rod position of the present invention.

Figure 33 is an enlarged view of the connection to the fixation rod location of the invention of figure 32 after assembly.

FIG. 34 is a schematic view of a fully assembled cartridge assembly of the present invention.

FIG. 35 is a schematic view of the position of the cutting blade and the arcuate snap fit after assembly of the present invention.

FIG. 36 is a schematic view of the cutting blade attached to the firing rod after assembly of the present invention.

Wherein the reference numbers indicate: 1. a nail bin assembly 2 and a anastomat;

1-1 part of nail abutting seat, 1-2 parts of nail bin seat, 1-3 parts of nail bin, 1-4 parts of push piece, 1-5 parts of titanium nail, 1-6 parts of push block, 1-7 parts of nail bin spring piece, 1-8 parts of lower rotary joint, 1-9 parts of upper rotary joint, 1-10 parts of rotary head pin, 1-11 parts of nail bin seat pin, 1-12 parts of connecting piece, 1-13 parts of upper half shell, 1-14 parts of lower half shell, 1-15 parts of arc buckle, 1-16 parts of expansion-proof plate, 1-17 parts of H-shaped block, 1-18 parts of cutting knife, 1-19 parts of driving sleeve, 1-20 parts of steering drag hook, 1-21 parts of sleeve, 1-22 parts of protective cover;

2-1 parts of a fixed rod, 2-2 parts of a connecting rod sleeve, 2-3 parts of a rotary fixed handle, 2-4 parts of a retreat button, 2-5 parts of a rotary handle, 2-6 parts of a fixed handle, 2-7 parts of a reset handle, 2-8 parts of a movable handle, 2-9 parts of a firing push rod;

1-1-1, a suturing nail guide groove 1-1-2, a cutter moving groove 1-1-3, a protective cover positioning hole 1-1-4 and a positioning connecting hole;

1-2-1 parts of a cutter trough, 1-2-2 parts of a positioning hole, 1-2-3 parts of a nail bin positioning hole;

1-3-1 parts of a suture nail groove, 1-3-2 parts of a cutter groove, 1-3-3 parts of a positioning clamping point, 1-3-4 parts of a pushing block positioning sliding groove, 1-3-5 parts of a spring piece hole;

1-8-1 parts of connecting piece connecting column, 1-8-2 parts of two fixing through holes, 1-8-3 parts of cutting knife guide groove;

1-9-1 parts of connecting piece connecting column, 1-9-2 parts of fixing through hole, 1-9-3 parts of cutting knife guide groove, 1-9-4 parts of fixing plane, 1-9-5 parts of triangular block, 1-9-6 parts of nail abutting seat fixing hole;

1-12-1 and a fixing hole.

1-13-1 parts of connecting sheet mounting groove, 1-13-2 parts of expansion-proof plate mounting groove, 1-13-3 parts of cutting knife guide groove.

1-14-1 parts of connecting sheet mounting groove, 1-14-2 parts of expansion-proof plate mounting groove, 1-14-3 parts of sleeve fixing block, 1-14-4 parts of cutting knife guide groove, 1-14-5 parts of rotating fixing point, 1-14-6 parts of arc buckle guide hole, 1-14-7 parts of guide fixing block, 1-14-8 parts of arc buckle limiting pit

1-15-1 parts of limiting block, 1-15-2 parts of clamping foot, 1-15-3 parts of fixing point

1-18-1, a cutter head 1-18-2, a push plate 1-18-2-1, a convex surface 1-18-2-2, a limiting opening 1-18-2-3 and a claw;

1-20-1 parts of fixing through holes, 1-20-2 parts of rotating fixing holes;

1-21-1, fixing holes;

1-22-1, a positioning block;

2-1-1, connecting a guide groove, 2-1-2 and connecting a fixing surface;

2-9-1 and a guide port.

Detailed Description

A surgical anastomat nail bin assembly with a safety device comprises a nail pushing seat 1-1, a nail bin seat 1-2, a nail bin 1-3, a push piece 1-4, titanium nails 1-5, a push block 1-6, a nail bin spring piece 1-7, a lower adapter 1-8, an upper adapter 1-9, a rotating head pin 1-10, a nail bin seat pin 1-11, a connecting piece 1-12, an upper half shell 1-13, a lower half shell 1-14, an arc-shaped buckle 1-15, an anti-expansion plate 1-16, an H-shaped block 1-17, a cutting knife 1-18, a driving sleeve 1-19, a steering drag hook 1-20, a sleeve 1-21 and a protective cover 1-22.

The nail pushing seat 1-1 is provided with six rows of a plurality of suturing nail guide grooves 1-1-1, a walking groove 1-1-2 is arranged in the middle, the tail end is provided with a protecting cover positioning hole 1-1-3, and the tail end is provided with a positioning connecting hole 1-1-4.

The nail bin seat 1-2 is of a U-shaped structure integrally, a cutter trough 1-2-1 is arranged in the middle, two positioning holes 1-2-2 are arranged at the tail end, and a plurality of nail bin positioning holes 1-2-3 are arranged at two sides.

The nail bin 1-3 is internally provided with a plurality of suture nail grooves 1-3-1, the middle is provided with a cutter trough 1-3-2, two sides are provided with a plurality of positioning clamping points 1-3-3, the lower end is provided with a pushing block positioning sliding groove 1-3-4, and the tail end is provided with two spring leaf holes 1-3-5.

A plurality of stitching nails 1-5 and a corresponding number of push pieces 1-4 are arranged in a plurality of stitching nail grooves 1-3-1 arranged in the nail bin 1-3, a push block 1-6 is arranged in a push block positioning sliding groove 1-3-4 at the rear end of the nail bin 1-3, a nail bin positioning clamping point 1-3-3 is arranged in a nail bin positioning hole 1-2-3 of the nail bin seat 1-2, and a nail bin spring leaf 1-7 is arranged in a spring leaf hole 1-3-5 at the tail end of the nail bin 1-3.

A connecting piece connecting column 1-8-1 is arranged in the middle of the upper joint 1-8, two fixing through holes 1-8-2 are arranged beside the upper joint, and a cutting knife guide groove 1-8-3 is arranged in the middle of the lower end of the upper joint.

The middle of the lower adapter 1-9 is provided with a connecting piece connecting column 1-9-1, the side of the lower adapter is provided with two fixing through holes 1-9-2, the middle of the lower end is provided with a cutting knife guide groove 1-9-3, two sides of the cutting knife guide groove 1-9-3 are provided with two fixing planes 1-9-4, the right fixing plane is slightly lower than the left fixing plane, the front end of the left fixing plane is provided with two triangular blocks 1-9-5, the height of the triangular block 1-9-5 is flush with the left fixing plane, and two sides of the triangular block are provided with nail-supporting seat fixing holes 1-9-6.

The front end of the steering drag hook 1-20 is provided with a fixed through hole 1-20-1, and the middle is provided with a rotary fixed hole 1-20-2.

The front end of the connecting sheet 1-12 is provided with a fixing hole 1-12-1, and the rear end is I-shaped.

The upper rotating joint 1-8 and the lower rotating joint 1-9 are installed together, the steering drag hook 1-20 is installed in a gap on the right side, the fixing through holes of the upper rotating joint 1-8, the lower rotating joint 1-9 and the steering drag hook 1-20 are concentric, and the rotating head pin 1-10 is installed.

The nail pushing seat 1-1 and the nail bin seat 1-2 are arranged on the lower adapter 1-9, and the nail bin seat pin 1-11 is arranged in the nail pushing seat fixing hole 1-9-6 of the lower adapter 1-9. Meanwhile, the connecting piece connecting column 1-8-1 of the upper adapter 1-8 is provided with a nail pushing seat 1-1 and a connecting piece 1-12, and the connecting piece connecting column 1-9-1 of the lower adapter 1-9 is provided with a connecting piece 1-12. The tail ends of the two connecting sheets 1-12 fall in the connecting sheet mounting grooves 1-13-1 of the upper half shell 1-13 and the connecting sheet mounting grooves 1-14-1 of the lower half shell 1-14 respectively.

The upper part of the front end of the upper half shell 1-13 is provided with a connecting sheet mounting groove 1-13-1, the lower part of the front end is provided with an anti-expansion plate mounting groove 1-13-2, and the middle of the lower end is provided with a cutting knife guide groove 1-13-3.

The lower part of the front end of the lower half shell 1-14 is provided with a connecting piece mounting groove 1-14-1, the upper part of the front end is provided with an anti-expansion plate mounting groove 1-14-2, the side edge of the front end is provided with a sleeve fixing block 1-14-3, the middle of the upper part is provided with a cutting knife guide groove 1-14-4, the middle is provided with a rotating fixing point 1-14-5, the middle and the rear part are provided with an arc-shaped buckle guide hole 1-14-6, the tail end is provided with two guide fixing blocks 1-14-7, and the front of the guide fixing blocks 1-14-7 is provided with two arc-shaped buckle.

The cutting knife 1-18 consists of a cutting knife head 1-18-1 and 4 pushing plates 1-18-2. The two sides of the tail end of the push plate 1-18-2 are provided with convex surfaces 1-18-2-1, the convex surface at the lower side is provided with a limiting opening 1-18-2-2, and the inner side of the tail end of the push plate is provided with 4 claws 1-18-2-3.

The upper half shell 1-13 is arranged on the lower half shell 1-14, the anti-expansion plate 1-16 is arranged in the anti-expansion plate mounting groove 1-13-2 of the upper half shell 1-13 and the anti-expansion plate mounting groove 1-14-2 of the lower half shell 1-14, and the H-shaped block 1-17 is arranged in the middle of the anti-expansion plate 1-16. The rotary fixing holes 1-20-2 of the steering drag hook 1-20 are arranged on the rotary fixing points 1-14-5 of the lower half shell 1-14, and the cutting knives 1-18 are arranged in the cutting knife guide grooves 1-13-3 of the upper half shell 1-13 and the cutting knife guide grooves 1-14-4 of the lower half shell 1-14. The limiting opening 1-18-2-2 of the cutting knife 1-18 is right opposite to the arc-shaped buckle guide hole 1-14-8 of the lower half shell 1-14, and a driving sleeve 1-19 is arranged in 4 claws 1-18-2-3.

The inner side of the arc-shaped buckle 1-15 is provided with a limiting block 1-15-1, the tail end of the arc-shaped buckle is provided with two clamping feet 1-15-2, and the tail end of each clamping foot 1-15-2 is provided with a fixing point 1-15-3.

The arc-shaped buckle 1-15 is wrapped at the outer sides of the upper half shell 1-13 and the lower half shell 1-14, and the limiting block 1-15-1 is arranged in the arc-shaped buckle guide hole 1-14-8 of the lower half shell 1-14.

The sleeve 1-21 is tubular, and the front end of the sleeve is provided with a fixing hole 1-21-1.

The sleeve 1-21 is sleeved outside the upper half shell 1-13 and the lower half shell 1-14, and the sleeve fixing block 1-14-3 of the lower half shell 1-14 is arranged in the fixing hole 1-21-1.

The protective cover 1-22 is arc-shaped, and a positioning block 1-22-1 is arranged in the middle.

The protective cover 1-22 is wrapped outside the sleeve 1-21, and the positioning block 1-22-1 is arranged in the protective cover positioning hole 1-1-3 of the nail abutting seat 1-1.

The surgical anastomat matched with the nail bin assembly 1 of the surgical anastomat with the safety device comprises a fixing rod 2-1, a connecting rod sleeve 2-2, a rotary fixing handle 2-3, a withdrawing button 2-4, a rotary handle 2-5, a fixing handle 2-6, a resetting handle 2-7, a movable handle 2-8 and a triggering push rod 2-9.

Before the nail bin assembly 1 is matched with the surgical anastomat 2 for use, the fixing points 1-15-3 on the clamping feet 1-15-2 of the arc-shaped buckles 1-15 fall into the arc-shaped buckle limiting pits 1-14-8 of the lower half shells 1-14, at the moment, the arc-shaped buckles 1-15 limiting blocks 1-15-1 are positioned in the limiting openings 1-18-2-2 of the cutting knife 1-18, and the cutting knife 1-18 cannot be pushed forwards.

When the nail bin assembly 1 is matched with the anastomat 2 for use, the arc-shaped buckle 1-15 clamping feet 1-15-2 slide into the connecting guide groove 2-1-1 of the fixing rod 2-1 along with the guide fixing block 1-14-7 of the lower half shell 1-14 of the nail bin assembly 1; meanwhile, claws 1-18-2-3 of a pushing plate 1-18-2 of a cutting knife 1-18 of a fixed driving sleeve 1-19 are sleeved on a firing push rod 2-9 along a guide port 2-9-1 of the firing push rod 2-9. When the nail bin assembly 1 is rotated, the arc-shaped buckle 1-15 cannot rotate due to the limit, so that the limit block 1-15-1 of the arc-shaped buckle 1-15 slides out of the limit opening 1-18-2-3 of the cutting knife 1-18, and the guide fixing block 1-14-7 of the lower half shell 1-14 is hung on the connecting fixing surface 2-1-2 of the fixing rod 2-1. At the moment, the cutting knives 1-18 of the nail bin assembly 1 can be pushed forwards, and the instrument can be normally used.