CN2461494Y - Tubular anastomat for surgery - Google Patents

Abstract

The utility model relates to a surgical tubular inosculation apparatus. A nail anvil is connected with a positioning rod of a nail-anvil pull rod in a rigid mode before the execution of inosculation operation and at the time of the execution. The nail anvil can rotate in one side-inclined mode after the inosculation operation is completed. The nail anvil after the side-inclined rotation can conveniently quit from the inosculation with a smaller caliber so as to avoid tearing inosculation mouths, wherein most of components are made of stamping components with simple structure and shape, injection molding components and circular tubes. The utility model is especially suitable for inosculating alimentary canal organs at the deep parts of human bodies or inosculating alimentary canal organs under endoscopes. The utility model is also especially suitable for producing disposable straight-neck type or curved-neck type surgical tubular inosculation apparatus with low cost on production lines on a large scale.

Description

Surgical tubular anastomosing device

This utility model relates to and is used for replacing surgical operation to adopt the surgical tubular anastomosing device of the free-hand identical operation of needlework, particularly relates to disposable cervical region and is surgical tubular anastomosing device straight shape or bending.

Various surgical tubular anastomosing devices just are being widely used in the tissue of coincideing in surgical operation, can reduce operating time, improve the operation quality.They are normally used for end such as esophagus in the digestive tract, stomach, duodenum, small intestinal, colon and rectum end, distolateral and side to side anastomosis operation, are specially adapted to appear and operations such as the esophagus end to end anastomosis at the stomach breast top of operating difficulties and low rectal carcinectomy postcolon rectum low level end to end anastomosis.

United States Patent (USP) 4319576,4603693,5193731 and 5350104 surgical tubular anastomosing devices of introducing, comprise that cervical region is anastomat body straight shape or bending, be installed in the fixed of anastomat body head or removably follow closely tube, be installed in the removably nail anvil of nail tube front end.Be installed in the anastomat lateral pivotable firing handle of portion after one's death, be installed in the other insurance institution of firing handle, be installed in the adjusting knob of anastomat body afterbody, be installed in anastomat nail anvil position indicating mechanism on one's body, be installed in anvil pull rod, ejector pin bar and other auxiliary spare part of anastomat body inside.In the nail tube, anastomosis staple, ejector pin head and endless knife are housed.Anastomosis staple is being followed closely tube circular front end portion along circumferential array.Nail anvil with nail tube opposing end faces on, be arranged with grooving accordingly with an anastomosis staple position in the nail tube, with the corresponding position, endless knife position in the nail tube cutter anvil is housed.Rotate adjusting knob, can move anvil pull rod, make nail anvil follow closely tube relatively and move forward and backward by screw mechanism.Open insurance institution, can clamp firing handle and promote the ejector pin bar forward, release by anastomosis staple and endless knife that the ejector pin head in the nail tube will be followed closely in the tube.Anastomosis staple adopts stainless steel silk, tantalum wire, titanium silk or other to have the tinsel manufacturing of similar performance.

When using surgical tubular anastomosing device, at first surgical tubular anastomosing device is inserted and wait the tissue that coincide, rotate adjusting knob then nail anvil is moved forward, so that the tissue of will waiting to coincide is tightened on the anvil pull rod between nail anvil and the nail tube.Rotate adjusting knob this moment more in the opposite direction, observes indicating mechanism simultaneously, makes between nail anvil and the nail tube to reach required grip thickness.Wait to organize and open insurance institution after clamped, can clamp anastomosis staple and endless knife in the firing handle push nail tube.After anastomosis staple is released in the nail tube, promptly penetrate the clamped identical tissue for the treatment of and direct reach the grooving on the nail anvil, make the anastomosis staple of U-shaped bend to B shape, reach the operation purpose that tissue is coincide.After endless knife is by release in the nail tube, directed reach on the cutter anvil in the nail anvil, excised the clamped redundance for the treatment of identical tissue.After finishing the operation that coincide, rotate adjusting knob nail anvil and nail tube spacing are increased, unclamp the tissue that coincide, so that withdraw from surgical tubular anastomosing device.

The surgical tubular anastomosing device of clinical use have that repeatability uses with disposable two kinds.The function of the surgical tubular anastomosing device that repeatability is used is few, needs dismounting at every turn after using, cleans, sterilizes and assembling again, has both influenced the performance of apparatus, easily causes cross infection again, and early eighties is eliminated abroad, and market at home also dwindles day by day.Because the development of plastics industry, the plastics that are fit to medical super quality and competitive price in a large number are developed, and have promoted that various disposable surgical instrumenties are flourish, and are extensive use of in clinical acquisition.Because the sickness rate of esophagus, harmonization of the stomach intestinal is very high, the craft of these tubular organ coincide difficult, the operation difficult quality guarantee, and therefore disposable surgical tubular anastomosing device is the disposable surgical instruments of present clinical use amount maximum.

The at present existing several styles of the nail anvil of surgical tubular anastomosing device and the draw bail of anvil pull rod.The surgical tubular anastomosing device of introducing in the United States Patent (USP) 4319576,4603693 and 4646745 adopts thread connection between nail anvil and the anvil pull rod.The dissatisfied place of making us of the draw bail of this style is, nail anvil must be screwed in could be with in the anastomat inserter tubing on the anvil pull rod, in case the damage of the screw thread on non-magnetic shim anvil pull bar organ-tissue, this just needs to open a bigger Kong Caineng on the sidewall of organ-tissue and stretches out nail anvil when end-to-side anastomosis; On the other hand, anastomat inserts behind the organ-tissue as need back out nail anvil the time, screws on to back out nail anvil and need bigger working place, and this is coincideing when being positioned at human body deep organ-tissue, or can bring very big inconvenience during operation under endoscope.Adopt plug-in to connect between the surgical tubular anastomosing device of introducing in the United States Patent (USP) 5158222, nail anvil and anvil pull rod, wherein anvil pull rod is made up of extension bar, pull bar and cantilever flexure strip.The head of extension bar is connected on the nail anvil, and the periphery of extension bar has the location spline.Pull bar can pass in the location splined hole in the nail tube.Extension bar and pull bar are by the removably draw bail between cantilever flexure strip composition nail anvil and the anvil pull rod.The dissatisfied place of making us of the draw bail of this style is the process and assemble more complicated of relevant parts.The dissatisfied place of making us of the draw bail of above-mentioned two kinds of styles is, adopt rigid attachment between the extension bar on nail anvil and the anvil pull rod, after finishing the operation that coincide, the bore of anastomotic stoma is less than the diameter of nail anvil, therefore when withdrawing from anastomat, just need carefully nail anvil to be stripped out from anastomotic stoma, the space that this action need is bigger, and also easily anastomotic stoma is torn.The surgical tubular anastomosing device of introducing in the United States Patent (USP) 4903697, nail anvil radially is divided into sheet, and it is identical with a diameter of following closely tin the nail anvil sheet to be strutted the diameter that makes nail anvil with the cutter anvil.After finishing the operation that coincide, endless knife is pulled out the cutter anvil, and the nail anvil sheet draws under the effect of elastic force own to reduce the external diameter of nail anvil.Be similar to the principle of opening and drawing in of umbrella.The dissatisfied place of making us of the draw bail of this style is, the anastomosis staple grooving rigidity that is divided into sheet is less, and the process and assemble of relevant parts is more complicated also, is difficult to the precision that reaches higher, directly has influence on identical quality.Adopt pivot to connect between the extension bar on the surgical tubular anastomosing device of introducing in the United States Patent (USP) 5758814, nail anvil and anvil pull rod, have a spring leaf to block extension bar in the nail anvil and make the nail anvil can not the rotation of solderless wrapped connection bar pivot axle.When carrying out identical operation, the throw-out collar of the endless knife inboard in the nail tube is pushed spring leaf open and is made between nail anvil and the extension bar and can rotate by pivot, and the interior spring of nail anvil promotes the nail anvil inclination and rotates, and the nail anvil of anastomat is withdrawed from from anastomotic stoma easily.The dissatisfied place of making us of the draw bail of this style is, the throw-out collar of the endless knife inboard in the nail tube is about to spring leaf when coincideing operation and pushes open and make between nail anvil and the extension bar and can rotate by pivot carrying out, this moment, anastomosis staple was not finished shaping as yet, and the spring in the nail anvil promotes nail anvil inclination rotation, anastomosis staple grooving on the nail anvil of anastomat and the position between the anastomosis staple in the nail tube are departed from, influence the correct shaping of anastomosis staple; On the other hand, a throw-out collar of following closely in the tube occupies certain space in the nail tube, has reduced to hold and has treated identical space of organizing stub, is only applicable to follow closely the bigger surgical tubular anastomosing device of a diameter; Also have on the one hand, the throw-out collar in spring leaf in the nail anvil and spring and the nail tube is exposed to holding treats identical organizing in the space of stub, waits to coincide and organizes stub may influence the correct operation of above-mentioned spring leaf, spring and throw-out collar.Therefore the nail anvil of surgical tubular anastomosing device and the draw bail of anvil pull rod also require further improvement.

The at present existing two kinds of styles of draw bail between the ejector pin head of surgical tubular anastomosing device, endless knife and the ejector pin bar.Two parts before and after the ejector pin head of the surgical tubular anastomosing device of introducing in the United States Patent (USP) 5685474 is divided into, the rear portion outward flanging of endless knife, again that the rear portion of ejector pin head is bonding with the front portion behind the front portion of endless knife insertion ejector pin head, endless knife and ejector pin head are fixedly connected.The dissatisfied place of making us of the draw bail of this style is that the processing of part and assembling are all relatively more negative assorted.The front portion of the ejector pin bar of the surgical tubular anastomosing device of above-mentioned patent is forked, withstands on the ejector pin head after insertion nail tube is interior again.The dissatisfied place of making us of the draw bail of this style is, when finish coincide after, the ejector pin bar retreats and can not drive the ejector pin head when resetting and retreat and reset, pushing slice of nail on the ejector pin head and endless knife are exposed to the outside, may damage surrounding tissue.The rear portion of the endless knife of the surgical tubular anastomosing device of introducing in the United States Patent (USP) 5205459 adopts the method for welding that ejector pin head and endless knife are fixedly connected to in-flanges; The rear portion of ejector pin head is forked, relies on elasticity to spring in the forward groove of ejector pin bar again after insertion nail tube is interior.The dissatisfied place of making us of the draw bail of this style is that the processing of part and assembling are all relatively more negative assorted.

The at present existing two kinds of styles of the anastomosis staple hole in the nail tube of surgical tubular anastomosing device and the shape of the pushing slice of nail on the ejector pin head.The surgical tubular anastomosing device of introducing in the United States Patent (USP) 5685474, the anastomosis staple hole in the nail tube and the shape of the pushing slice of nail on the ejector pin head are cuboid.The assume diamond in shape prism in cross section of the surgical tubular anastomosing device of introducing in the United States Patent (USP) 5205459, the anastomosis staple hole in the nail tube and the shape of the pushing slice of nail on the ejector pin head.The anastomosis staple hole in these two kinds nail tubes and the shape of the pushing slice of nail on the ejector pin head the dissatisfied place of making us be, the anastomosis staple hole of tens distributions and pushing slice of nail make the processing of mould of nail tube and ejector pin head relatively more negative assorted, positioning accuracy is difficult to assurance.

The at present existing two kinds of styles of the firing handle of surgical tubular anastomosing device.The surgical tubular anastomosing device of introducing in the United States Patent (USP) 5685474, the metal chip of firing handle directly adopts the method for injection moulding and the handle casing of plastics to be fixed together.The dissatisfied place of making us of the firing handle of this style is that metal chip shortens the service life of injection mold greatly.The surgical tubular anastomosing device of introducing in the United States Patent (USP) 5205459, after the metal chip of firing handle adopts the method processing of bend forming, insert in the handle casing of plastics, again metal chip is strutted it is fixed in the handle casing, thereby make firing handle.The dissatisfied place of making us of the firing handle of this style is that the processing of part and assembling are all relatively more negative assorted.

At present, because that curved neck formula surgical tubular anastomosing device is treated the scope that the tissue that coincide need appear is little, reach suitable surgery location easily, can manipulate under endoscope again, therefore the application in clinical more and more widely.Yet, existing curved neck formula surgical tubular anastomosing device, as introducing in United States Patent (USP) 5193731 and 5350104, its curved cervical region adopts metal winding pipe to make, and the two ends of metal winding pipe are fixed by metal canula and nail tube and the roll extrusion of anastomat body respectively.The dissatisfied place of making us of the curved neck formula surgical tubular anastomosing device of this style is to adopt metal canula to make metal winding pipe and continuously connected fastener tube and the fixed difficulty of processing of anastomat body roll extrusion very big, thereby increased the producing cost of curved neck formula surgical tubular anastomosing device.In addition, metal winding pipe inside is difficult to be processed into complicated shape, the anvil pull rod of existing curved neck formula surgical tubular anastomosing device and ejector pin bar all stack installation in curved neck inside, and meeting phase mutual friction and extruding not only increase moving resistance but also reduce displacement accuracy during use.Therefore curved neck formula surgical tubular anastomosing device also need improve.

By above-mentioned obviously as can be seen, a large amount of not in specie surgical tubular anastomosing devices have been designed now, and the development work of new surgical tubular anastomosing device is still continuing, so that the surgical tubular anastomosing device that uses in a large number in the world every year is done further to improve, make that operation is more convenient, safety and correct, cost of use is lower.

The purpose of this utility model is to propose a kind of surgical tubular anastomosing device, and the nail anvil rotation controling mechanism is positioned at the inside and the surface of anvil pull rod, being implemented in before the operation that coincide finishes rigid attachment between the locating rod of nail anvil and anvil pull rod; After the operation that coincide is finished, but just inclination rotation of nail anvil, the nail anvil lateral cross is less than the nail anvil radial section, and the nail anvil of being convenient to after inclination is rotated withdraws from from more small-bore anastomotic stoma, to avoid tearing anastomotic stoma.Neither can influence the shaping of anastomosis staple, also can not causing waits to coincide organizes the obstruction of stub to the action of nail anvil rotation controling mechanism, and said mechanism is safer in use, action is more accurate thereby make.

Another purpose of the present utility model is to propose a kind of surgical tubular anastomosing device, realization ejector pin head, nail tube, endless knife, firing handle and anastomat status are not made by stamping parts, moulding and the pipe of structure and simple shape, thereby are more suitable for being used to make disposable surgical tubular anastomosing device.

At present, known surgical tubular anastomosing device comprises, cervical region is anastomat body straight shape or bending, be installed in the fixed of anastomat body head or removably follow closely tube, be installed in the removably nail anvil in nail tube the place ahead, be installed in ejector pin head and endless knife in the nail tube, be installed in nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of nail anvil and with the nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the nail anvil and the endless knife position corresponding cutter anvil interior with following closely tube, can in the anastomat body, move forward and backward, its head is equipped with the anvil pull rod of nail anvil, can in the anastomat body, move forward and backward, its head is equipped with the ejector pin bar of ejector pin head and endless knife, be installed in the pivotable firing handle of anastomat body portion, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on firing handle side, be installed in the indicating mechanism of anastomat body portion, anvil pull rod is moved forward and backward in the anastomat body regulating the nail anvil position adjusting mechanism of the distance between nail anvil and the nail tube, promote the ejector pin bar by firing handle and in the anastomat body, move forward with the firing lock of anastomosis staple in the push nail tube and endless knife and be installed in other auxiliary spare part of anastomat body inside.

Task of the present utility model is achieved through the following technical solutions:

But contain in the surgical tubular anastomosing device of the present utility model make nail anvil finish coincide before with the locating rod rigid attachment of anvil pull rod, finish the nail anvil rotation controling mechanism of inclination rotation after coincideing.The nail anvil rotation controling mechanism is made up of anvil pull rod, nail anvil, ejector pin head, lock dog and inclination spring.The front portion of anvil pull rod is made up of roll bar and locating rod.The front portion of roll bar is fixedly connected with nail anvil, the rear portion connects with the anterior pivot of locating rod.The periphery of locating rod have fixed-site positioning key and can be on locating rod before and after lock dog, the surface of moving have and be step-like chute.It is corresponding with the anastomosis staple position in the nail tube that the positioning key of locating rod can insert the anastomosis staple grooving that makes in the interior locating hole of nail tube on the nail anvil end face.The front end of the locating hole of the ejector pin head in the nail tube in the nail tube has the switching hole.The switching hole that anvil pull rod can be passed the ejector pin head moves forward and backward.The inclination spring is installed in the anvil pull rod eccentricly, and the one end acts on the roll bar, the other end acts on the locating rod.The inclination spring can be compression spring, extension spring or a torsionspring.There is annular cover, rear portion to have to be set in the elastic hook in the chute of locating rod surface the front portion of lock dog.Annular cover locks together roll bar and locating rod in case the non-magnetic shim anvil is operated the front side and verted moving finishing to coincide.Elastic hook in the chute of locating rod, extend to backward the location of locating rod strong near.The elastic hook of lock dog can be made the shape to the inclination of the inboard of locating rod in advance.When the annular cover locks together roll bar and locating rod, the last ladder of the stairstepping chute of locating rod can withstand the protrusion position of the elastic hook inboard of lock dog, with the inclination position of the elastic hook of lock dog outer side shifting, the elastic hook of lock dog is exposed slightly from the chute of locating rod to locating rod.Ejector pin head reach when carrying out identical operation in the nail tube, the switching hole of ejector pin head makes elastic hook be hooked in the rear in the switching hole on the ejector pin head to rebounding after the flexural deformation of locating rod axle center again, elastic hook clashes into the switching hole of ejector pin head simultaneously, and the identical operation of strike note prompting is finished.After the operation that coincide was finished, the ejector pin head in the nail tube oppositely moved relative to above-mentioned locating rod, and the switching hole of ejector pin head is moved after driving lock dog by elastic hook, made the annular cover on the lock dog break away from the position of pinning roll bar and locating rod.Simultaneously, spring into the downstairs of stairstepping chute behind the last ladder of the stairstepping chute of the protrusion position of the elastic hook inboard of lock dog disengaging locating rod, make the elastic hook of lock dog break away from the switching hole of following closely on the interior ejector pin head of tube.Operation nail anvil position adjusting mechanism separates nail anvil and nail tube, and nail anvil can vert moving at the effect downside of inclination spring.Also can be with sheath in the groove of the periphery of the elastic hook of lock dog.Before carrying out the operation that coincide, sheath can be protected the elastic hook of lock dog not deformed by unexpected effect or move.When carry out coincideing operation, push sheath open after elastic hook is depressed in the ejector pin head reach in the nail tube, make sheath no longer influence lock dog elastic hook distortion or move.

The periphery of the head of the anastomat body in the surgical tubular anastomosing device of the present utility model has L shaped locating slot and sour jujube tooth, nail tube locating convex block and sour jujube tooth arranged in interior week.When following closely the head of tube insertion anastomat body, all locating convex blocks enter the bottom of the straight trough of L shaped locating slot in the nail tube along the L shaped locating slot of anastomat body head.Be inserted in when nail tube rotate again on the head of anastomat body after, the locating convex block in week enters the bottom of the curved groove of L shaped locating slot in the nail tube along the L shaped locating slot of anastomat body head.The sour jujube tooth of the sour jujube tooth strain in week displacement back and the periphery of the head of anastomat body is meshing with each other in the nail tube simultaneously, the nail tube can be fixed on one's body the anastomat.

The front portion of the ejector pin head in the nail tube in the surgical tubular anastomosing device of the present utility model has pushing slice of nail, rear portion that the ejector pin seat is arranged; The ejector pin bar is made up of ejector pin extension bar and ejector pin slide bar.The front portion of ejector pin extension bar has to piece, postmedian has fork arm, afterbody to have axial groove and circumferential slot.The front portion of ejector pin slide bar has crotch.The pushing slice of nail of ejector pin extension bar is inserted in the anastomosis staple hole of nail tube, and the ejector pin seat that supports piece and ejector pin head of ejector pin extension bar is fixedly connected, and the fork arm of ejector pin extension bar is inserted in the inner support of nail tube.Crotch on the ejector pin slide bar inserts the axial groove of ejector pin extension bar earlier, enters the circumferential slot of ejector pin extension bar after rotating again, and the ejector pin head is moved forward and backward with the ejector pin bar.

Between ejector pin head in the nail tube in the surgical tubular anastomosing device of the present utility model and the endless knife circular gasket is arranged.There is aperture the side of endless knife.The side of ejector pin head has and the lateral aperture position corresponding groove of endless knife.Pad is put into the ejector pin head, again with the rearward end seat of endless knife on pad, the aperture that then locking plate is passed endless knife inserts in the groove of ejector pin head, and endless knife is fixed on the ejector pin head.Locking plate also can be made the crotch on the pad.

Three faces in the ejector pin hole in each the anastomosis staple hole in the nail tube front end face in the surgical tubular anastomosing device of the present utility model are three faces of cuboid, and another in each ejector pin hole is the concentric face of cylinder near the face of nail tube periphery.Three faces on procephalic each pushing slice of nail of ejector pin are three faces of cuboid, and another in each pushing slice of nail is the concentric face of cylinder near the face of nail tube periphery.Procephalic each pushing slice of nail of ejector pin is corresponding respectively with the position in forward each the ejector pin hole of nail tube, and can insert each ejector pin hole respectively, and the face of cylinder and the face of cylinder in the ejector pin hole on the pushing slice of nail is the concentric circular cylinder at this moment.The above-mentioned face of cylinder can be respectively as the ejector pin hole of tens distributions or the processing datum of pushing slice of nail, to guarantee that the ejector pin hole and the position of pushing slice of nail can be correct corresponding.

Anastomat body in the surgical tubular anastomosing device of the present utility model is made up of curved cervical region and body portion.Each is closed up curved cervical region and body portion by two slit bamboo or chopped woods shell made of plastic and forms after fixing.Inboard at the two slit bamboo or chopped wood shells of bending cervical region has dividing plate.Dividing plate is both as the reinforcement of the curved cervical region of anastomat body, again the guide plate that moves forward and backward in the anastomat body as anvil pull rod and ejector pin bar.Two slit bamboo or chopped wood shells of the curved cervical region of anastomat body close up fixing after, be with the nail tube in the front portion of curved cervical region, it is clamped to close up fixing back at the rear portion of curved cervical region by two slit bamboo or chopped wood shells of the body portion of anastomat body.

Firing handle in the surgical tubular anastomosing device of the present utility model is made up of two plate shapes identical metal handle chip and a plastic handle cover.The front upper part of handle chip has handle hole and driving lever, postmedian that elongate rod is arranged.The front upper part of taper knob has locking plate, posterior part to be furnished with slot.The driving lever of handle chip can promote the ejector pin bar and move.After the elongate rod of handle chip was inserted in the slot of taper knob, the locking plate of taper knob was positioned at the front portion of the handle hole of handle chip.Can be fixed together handle chip and taper knob insert the axle that connects with anastomat body pivot in handle hole after this moment.

Surgical tubular anastomosing device of the present utility model has following characteristics: the surgeon is when using surgical tubular anastomosing device of the present utility model, the digestive organ that the surgical tubular anastomosing device insertion is to be coincide, the spacing of rotating adjusting knob, selecting suitable nail anvil and following closely tube, the tissue of will waiting to coincide is tightened after on the anvil pull rod, again the backward rotation adjusting knob make wait to coincide clamp tissue between nail anvil and nail tube up to the grip thickness of the operation that is fit to coincide.In case the surgeon determines that each step operation is correct, can open insurance institution successively, clamps firing handle, finish the operation that coincide.After finishing the tissue that coincide, unclamp firing handle, the ejector pin bar drives ejector pin head and endless knife and withdraws the nail tube automatically preventing to damage surrounding tissue, and moves after can driving lock dog on the anvil pull rod.Rotating adjusting knob this moment unclamps by behind the tissue that coincide nail anvil, nail anvil can rotate in inclination, when surgical tubular anastomosing device of the present utility model being withdrawed from coincide organ, nail anvil withdraws from from anastomotic stoma with less lateral cross, occurs tearing the accident surgery of anastomotic stoma in the time of can preventing to withdraw from nail anvil.The nail anvil rotation controling mechanism neither can influence the shaping of anastomosis staple when action, also can not causing waits to coincide organizes stub to hinder the action of nail anvil rotation controling mechanism.Ejector pin head, nail tube, endless knife, firing handle and anastomat status are not made by stamping parts, moulding and the pipe of structure and simple shape.Compare with existing surgical tubular anastomosing device, more convenient, more accurate and cost of use is lower when surgical tubular anastomosing device of the present utility model uses, being suitable for especially coincide is positioned at the digestive organ in human body deep and the digestive organ of the human body that coincide under endoscope.Surgical tubular anastomosing device of the present utility model also suits to produce on a large scale disposable cheaply orthochoanitic or curved neck formula surgical tubular anastomosing device especially on streamline.

Use way of example below, state most preferred embodiment of the present utility model in conjunction with the accompanying drawings, scope of the present utility model will be pointed out in the claims.Will be appreciated that some or all accompanying drawing portion is for the explanation sketch drawing of most preferred embodiment of the present utility model is described, and the full-size(d) of parts shown in not depicting.With reference to being described in detail of most preferred embodiment, understand with will be more readily apparent from reach this utility model above-mentioned with other the purpose and the practical ways of advantage.

Fig. 1 is the outside drawing of expression curved neck formula surgical tubular anastomosing device of the present utility model;

Fig. 2 is the partial sectional view of surgical tubular anastomosing device anastomat head when grip tissue not of presentation graphs 1;

Fig. 3 is the partial sectional view of surgical tubular anastomosing device anastomat head when grip tissue of Fig. 1;

Fig. 4 is the partial sectional view of surgical tubular anastomosing device anastomat head when execution coincide of Fig. 1;

Fig. 5 is that the surgical tubular anastomosing device of Fig. 1 is finished the partial sectional view that anastomat head when being organized by coincideing is prepared to withdraw from the back that coincide;

Fig. 6 is the profile of the lock dog on the anvil pull rod in the surgical tubular anastomosing device of Fig. 1;

Fig. 7 is the profile of the forward ejector pin extension bar of ejector pin bar and ejector pin head in the surgical tubular anastomosing device of Fig. 1;

Fig. 8 is the local appearance figure when the nail tube does not insert anastomat body head in the surgical tubular anastomosing device of Fig. 1;

Fig. 9 be in the surgical tubular anastomosing device of Fig. 1 single anastomosis staple hole perpendicular to the partial sectional view of axis;

Figure 10 be in the surgical tubular anastomosing device of Fig. 1 single pushing slice of nail perpendicular to the cutaway view of axis.

Fig. 1 is the outside drawing of curved neck formula surgical tubular anastomosing device of the present utility model.The afterbody of anastomat body 1 is equipped with adjusting knob 2.The back upside of anastomat body 1 has indication window 3, and nail anvil position indicator pointer 4 is equipped with in indication window 3 belows.Anastomat body 1 back downside has lock 5 and the firing handle 6 that connects with anastomat body 1 pivot.Lock 5 is between anastomat body 1 and firing handle 6.The head of anastomat body 1 is equipped with nail tube 7.The front end of nail tube 7 has nail anvil 8.Nail anvil 8 links with the anvil pull rod 9 of stretching out from nail tube 7.

Below in conjunction with Fig. 1 to Figure 10 to surgical tubular anastomosing device of the present utility model in each operating procedure, the course of action of each mechanism is about parts and be coupled to each other and effect is described.

When using surgical tubular anastomosing device, at first the head with surgical tubular anastomosing device inserts digestive organ 10 to be coincide, rotate adjusting knob 2 then nail anvil 8 is moved forward, so that the tissue 10 of will waiting to coincide is tightened (see figure 2) on the anvil pull rod 9 between nail anvil 8 and the nail tube 7.This moment, rightabout rotated adjusting knob 2 again, observed the nail anvil position indicator pointer 4 in the indication window 3 simultaneously, made between nail anvil 8 and the nail tube 7 to reach required grip thickness (see figure 3).Wait to organize 10 to open lock 5 after clamped, can clamp anastomosis staple 11 and endless knife 12 (see figure 4)s in the firing handle 6 push nail tubes 7.After anastomosis staple 11 is released in nail tube 7, promptly penetrate clamped the waiting tissue 10 anastomosis staple groovings 13 that direct reach on the nail anvil 8 that coincide, make the anastomosis staple 11 of U-shaped bend to the B shape of appropriate level, reach the operation purposes that tissue 10 is identical, see Fig. 4.After endless knife 12 is by release in nail tube 7, directed reach on the cutter anvil 14 in the nail anvil 8, excised the clamped redundance (see figure 4) for the treatment of identical tissue 10.After finishing the operation that coincide, rotate adjusting knob 2 nail anvil 8 and nail tube 7 spacings are increased, unclamp by the tissue 10 that coincide, so that surgical tubular anastomosing device withdraws from (see figure 5) in digestive organ 10.

The front portion of anvil pull rod 9 is made up of roll bar 15 and locating rod 16.The front portion of roll bar 15 is fixedly connected with nail anvil 8, the rear portion connects with the anterior pivot of locating rod 16.The periphery of locating rod 16 has positioning key 17, the surface of fixed-site to have to be step-like chute 18.It is corresponding that the positioning key 17 of locating rod 16 can insert interior anastomosis staple 11 positions of the anastomosis staple grooving 13 that makes in the locating hole 19 in the nail tube 7 on nail anvil 8 end faces and nail tube 7.Inclination spring 20 is installed in the anvil pull rod 9 prejudicially, and the one end acts on the roll bar 15, the other end acts on the locating rod 16.There is annular cover 22, rear portion to have to be set in the elastic hook 23 in the locating rod 16 surperficial chutes 18 front portion of lock dog 21.Annular cover 22 locks together roll bar 15 and locating rod 16 in case non-magnetic shim anvil 8 verts moving finishing the operation front side that coincide.Elastic hook 23 extends rearward near the positioning key 17 of locating rod 16.The elastic hook 23 of lock dog 21 is made the shape to the inclination of the inboard of locating rod 16 in advance, sees Fig. 6.The front end of the locating hole 19 of the ejector pin head 24 in the nail tube 7 in nail tube 7 has the hole 25 of switching.The switching hole 25 that anvil pull rod 9 can be passed ejector pin head 24 moves forward and backward.When annular cover 22 locks together roll bar 15 and locating rod 16, the last ladder 26 of the stairstepping chute 18 of locating rod 16 can withstand the protrusion position 27 of the elastic hook 23 of lock dog 21, with the protrusion position 27 of the elastic hook 23 of lock dog 21 outer side shifting, elastic hook 23 is exposed slightly in the chute 18 of locating rod 16 to locating rod 16.

(see figure 4) when carrying out identical operation, the ejector pin head 24 in the nail tube 7 moves forward.Switching hole 25 on the ejector pin head 24 makes elastic hook 23 after the distortion of locating rod 16 center curvatures, and rebounding is hooked in the rear in the switching hole 25 on the ejector pin head 24 again.Sound on the switching hole 25 of the metal of bump ejector pin head 24 when metallic spring hook 23 rebounds, finish to the identical operation of surgeon prompting.(see figure 5) after the operation that coincide is finished, ejector pin head 24 in the nail tube 7 oppositely moves relative to above-mentioned locating rod 16, the switching hole 25 of ejector pin head 24 is moved after driving lock dog 21 by elastic hook 23, makes the annular cover 22 on the lock dog 21 break away from the position of pinning roll bar 15 and locating rod 16.Simultaneously, the protrusion position of elastic hook 23 inboards of lock dog 21 27 breaks away from the downstairs 28 that springs into stairstepping chute 18 behind the last ladder 26 of stairstepping chute 18 of locating rods 16, makes the switching hole 25 on the elastic hook 23 disengaging ejector pin heads 24 of lock dog 21.Rotate adjusting knob 2 nail anvil 8 and the spacing of nail tube 7 are increased, unclamp by the tissue 10 that coincide, nail anvil 8 can vert moving at the effect downside of inclination spring 20, so that surgical tubular anastomosing device withdraws from (see figure 5) from organizing in 10.Be with sheath 30 on the groove 29 of the periphery of the elastic hook 23 of lock dog 21.Sheath 30 can be protected the elastic hook 23 of lock dog 21 not deformed by unexpected effect or move before carrying out the operation that coincide.Push sheath 30 open after elastic hook 23 is depressed in ejector pin head 24 reaches when carry out coincideing operation in the nail tube 7, make sheath 30 no longer influence the distortion of elastic hook 23 of lock dog 21 or mobile.

Between ejector pin head 24 in the nail tube 7 and the endless knife 12 circular gasket 31 is arranged.Crotch 32 is arranged on the pad 31.There is aperture 33 side of endless knife 12.The side of ejector pin head 24 has and endless knife 12 lateral aperture 33 position corresponding groove 34.Pad 31 is put into ejector pin head 24, again with the rearward end seat of endless knife 12 on pad 31, the aperture 33 that then crotch on the pad 31 32 is passed endless knife 12 inserts in the groove 34 of ejector pin heads 24, and endless knife 12 is fixed on the ejector pin head 24.

The front portion of the ejector pin head 24 in the nail tube 7 has pushing slice of nail 35, rear portion to have ejector pin seat 36, inside that ejector pin extension bar 38 is arranged; There is ejector pin slide bar 39 front portion of ejector pin bar 37.The front portion of ejector pin extension bar 38 has to piece 40, postmedian has fork arm 41, afterbody to have axial groove 42 and circumferential slot 43 (see figure 7)s.The front portion of ejector pin slide bar 39 has crotch 44.Pushing slice of nail 35 on the ejector pin head 24 can be inserted in the anastomosis staple hole 45 of nail tube 7.Circlip 46 is fixedly connected the ejector pin seat 36 that supports piece 40 and ejector pin head 24 of ejector pin extension bar 38.The fork arm 41 of ejector pin extension bar 38 is inserted in the inner support 47 of nail tube 7.Crotch 44 on the ejector pin slide bar 39 inserts the axial groove 42 of ejector pin extension bars 38 earlier, enters the circumferential slot 43 of ejector pin extension bar 38 after rotating again, and ejector pin head 24 is moved forward and backward with ejector pin bar 37.

As shown in Figure 8, the periphery of anastomat body 1 head has L shaped locating slot 48 and sour jujube tooth 49, nail tube 7 locating convex block 50 and sour jujube tooth 51 arranged in interior week.When nail tube 7 inserted anastomat body 1 head, the locating convex block 50 in week entered the bottom 52 of the straight trough of L shaped locating slot 48 in the nail tube 7 along the L shaped locating slot 48 of anastomat body 1 head.Be inserted in when nail tube 7 rotate again on the head of anastomat body 1 after, the locating convex blocks 50 in week enter the bottom 53 of the curved groove of L shaped locating slot 48 in the nail tube 7 along the L shaped locating slot 48 of anastomat body 1 head.The sour jujube tooth 51 strains displacement back in 7 interior weeks of nail tube is meshing with each other with the sour jujube tooth 49 of the periphery of anastomat body 1 head simultaneously, can be fixed on the anastomat body 1 following closely tube 7.

As shown in Figure 1, anastomat body 1 is made up of curved cervical region 54 and body portion 55.Each is closed up curved cervical region 54 and body portion 55 by two slit bamboo or chopped woods shell 56-59 made of plastic and forms after fixing.Have dividing plate 60 at two slit bamboo or chopped wood shells 56 of curved cervical region 54 and 57 inboard.Dividing plate 60 is both as the reinforcement of the curved cervical region 54 of anastomat body 1, again the guide plate that moves forward and backward in anastomat body 1 as anvil pull rod 9 and ejector pin bar 37.The two slit bamboo or chopped wood shells 56 and 57 of the curved cervical region 54 of anastomat body 1 close up fixing after, be with nail tube 7 (see figure 8)s in the front portion of curved cervical region 54, it is clamped to close up fixing back at the rear portion of curved cervical region 54 by the two slit bamboo or chopped wood shells 58 and 59 of the body portion 55 of anastomat body 1.

As shown in Figure 1, firing handle 6 is made up of two plate shapes identical metal handle chip 61 and a plastic handle cover 62.The front upper part of handle chip 61 has handle hole 63 and driving lever 64, postmedian that elongate rod 65 is arranged.The front upper part of taper knob 62 has locking plate 66, posterior part to be furnished with slot 67.The driving lever 64 of handle chip 61 can promote ejector pin bar 37 and move.After the elongate rod 65 of handle chip 61 was inserted in the slot 67 of taper knobs 62, the locking plate 66 of taper knob 62 was positioned at the front portion of the handle hole 63 of handle chip 61.Can be fixed together handle chip 61 and taper knob 62 insert the axle 68 that connects with anastomat body 1 pivot in handle hole 63 after this moment.

Three face 70-72 in the ejector pin hole 69 in each the anastomosis staple hole 45 in nail tube 7 front end face are three faces of cuboid, and another in each ejector pin hole 69 is concentric face of cylinder (see figure 9) near the face 73 of nail tube 7 peripheries.Three face 74-76 on ejector pin head 24 forward each pushing slice of nail 35 are three faces of cuboid, and another in each pushing slice of nail 35 is concentric face of cylinder (see figure 10) near the face 77 of ejector pin head 24 peripheries.The above-mentioned face of cylinder 73 and 77 can be respectively as the ejector pin hole 69 of tens distributions and the processing datum of pushing slice of nail 35.Ejector pin head 24 forward each pushing slice of nail 35 are corresponding respectively with the position in nail tube 7 forward each ejector pin hole 69, and can insert each ejector pin hole 69 respectively, and the face of cylinder 77 on the pushing slice of nail 35 and the face of cylinder 73 in the ejector pin hole 69 are the concentric circular cylinder at this moment.

According to being described in detail as can be known of of the present utility model curved neck formula surgical tubular anastomosing device that Fig. 1 to Figure 10 introduced: the surgeon is when using surgical tubular anastomosing device of the present utility model, the digestive organ 10 that the surgical tubular anastomosing device insertion is to be coincide, the spacing of rotating adjusting knob 2, selecting suitable nail anvil 8 and following closely tube 7, the tissue 10 of will waiting to coincide is tightened after on the anvil pull rod 9, and backward rotation adjusting knob 2 makes the tissue 10 of waiting to coincide be clamped between nail anvil 8 and the nail tube 7 grip thickness up to the operation that is fit to coincide again.In case the surgeon determines that each step operation is correct, can open lock 5 successively, clamp firing handle 6.Finish when coincideing operation, can hear the metal strike note.After finishing the tissue that coincide, unclamp firing handle 6, ejector pin bar 37 drive ejector pin heads 24 and endless knife 12 automatically withdrawal nail tube 7 and move after can driving lock dog 21 on the anvil pull rod 9 with the antisitic defect surrounding tissue.Rotating adjusting knob 2 this moment unclamps by behind the tissue 10 that coincide nail anvil 8, nail anvil 8 can rotate in inclination, when surgical tubular anastomosing device of the present utility model being withdrawed from coincide organ 10, nail anvil 8 withdraws from from anastomotic stoma 78 with less lateral cross, occurs tearing the accident surgery of anastomotic stoma 78 when preventing to withdraw from nail anvil 8.The controlling organization that nail anvil 8 inclinations are rotated neither can influence the shaping of anastomosis staple 11 when action, also can not cause and wait to coincide the obstruction of tissue 10 stubs to the action of the controlling organization of nail anvil 8 inclinations rotation.Ejector pin head 24, nail tube 7, endless knife 12, firing handle 6 and anastomat body 1 are made by stamping parts, moulding and the pipe of structure and simple shape respectively, and are convenient to processing and assembling.Compare with existing surgical tubular anastomosing device, it is more convenient, rapider, more accurate and cost of use is lower when surgical tubular anastomosing device of the present utility model uses, being suitable for especially coincide is positioned at the digestive organ in human body deep or the digestive organ of the human body that coincide under endoscope, also suit to produce on a large scale on streamline disposable cheaply orthochoanitic or curved neck formula surgical tubular anastomosing device especially.

Claims (13)

1, a kind of surgical tubular anastomosing device, its ingredient comprises: cervical region is anastomat body straight shape or bending, be installed in the nail tube of above-mentioned anastomat body head, be installed in the nail anvil in above-mentioned nail tube the place ahead, be installed in ejector pin head and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of above-mentioned nail anvil and with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the above-mentioned nail anvil and with above-mentioned nail tube in the corresponding cutter anvil in endless knife position, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the anvil pull rod of above-mentioned nail anvil, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the ejector pin bar of above-mentioned ejector pin head and endless knife, be installed in the pivotable firing handle of above-mentioned anastomat body portion, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on above-mentioned firing handle side, be installed in the indicating mechanism of above-mentioned anastomat body portion, above-mentioned anvil pull rod is moved forward and backward in above-mentioned anastomat body to regulate the nail anvil position adjusting mechanism of the distance between above-mentioned nail anvil and the nail tube, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves forward in above-mentioned anastomat body to release the above-mentioned anastomosis staple in the above-mentioned nail tube and the firing lock of endless knife, make nail anvil finish coincide before and the anvil pull rod rigid attachment, but finish coincide after the nail anvil rotation controling mechanism that rotates of inclination, be installed in other auxiliary spare part of above-mentioned anastomat body inside;

It is characterized in that: above-mentioned nail anvil rotation controling mechanism is by above-mentioned anvil pull rod, above-mentioned nail anvil, above-mentioned ejector pin head and inclination spring are formed, the front portion of above-mentioned anvil pull rod is made up of roll bar and locating rod, the front portion and the nail anvil of above-mentioned roll bar are fixedly connected, the rear portion connects with the anterior pivot of locating rod, the periphery of above-mentioned locating rod have the location of fixed-site strong and can be on locating rod before and after the lock dog that moves, the anastomosis staple grooving that the positioning key of above-mentioned locating rod can insert on the end face that makes above-mentioned nail anvil in the locating hole in the above-mentioned nail tube is corresponding with the anastomosis staple position in the above-mentioned nail tube, and above-mentioned lock dog locks together above-mentioned roll bar and above-mentioned locating rod to prevent that above-mentioned nail anvil from verting moving finishing the identical front side of operating; After the operation that coincide is finished, ejector pin head in the above-mentioned nail tube can drive the position that above-mentioned lock dog release lock lives in to state roll bar and locating rod when moving relative to above-mentioned locating rod is reverse, operate above-mentioned nail anvil position adjusting mechanism above-mentioned nail anvil and above-mentioned nail tube are separated, above-mentioned nail anvil can vert moving at the effect downside of above-mentioned inclination spring.

2, surgical tubular anastomosing device according to claim 1, it is characterized in that, inclination spring in the above-mentioned nail anvil rotation controling mechanism is installed in the above-mentioned anvil pull rod, and an end of above-mentioned inclination spring acts on the above-mentioned roll bar, the other end acts on the above-mentioned locating rod.

3, nail anvil rotation controling mechanism according to claim 2 is characterized in that, above-mentioned inclination spring is mounted in the compression spring in the above-mentioned roll bar, and the eccentric axis of the above-mentioned relatively roll bar of the axis of above-mentioned compression spring is placed.

4, surgical tubular anastomosing device according to claim 1, it is characterized in that, in the above-mentioned nail anvil rotation controling mechanism, there is chute on the surface of above-mentioned locating rod, the front portion of above-mentioned lock dog has annular cover, rear portion to have can be set in the interior elastic hook of above-mentioned locating rod surface chute, above-mentioned annular cover locks together above-mentioned roll bar and above-mentioned locating rod to prevent that above-mentioned nail anvil from operating the front side and vert movingly finishing to coincide, and above-mentioned elastic hook extends near the positioning key of above-mentioned locating rod in the chute of above-mentioned locating rod backward; When carrying out identical operation, the ejector pin head reach in the above-mentioned nail tube is rebounded above-mentioned elastic hook again after the axle center flexural deformation of above-mentioned locating rod; After the operation that coincide is finished, ejector pin head in the above-mentioned nail tube oppositely moves relative to above-mentioned locating rod, above-mentioned ejector pin head moves after driving above-mentioned lock dog by above-mentioned elastic hook, make the annular on the above-mentioned lock dog overlap the position that release lock lives in to state roll bar and locating rod, above-mentioned nail anvil can vert moving at the effect downside of above-mentioned inclination spring.

5, nail anvil rotation controling mechanism according to claim 4 is characterized in that, the elastic hook of above-mentioned lock dog is made the shape to the inclination of the inboard of above-mentioned locating rod in advance, and the chute of above-mentioned locating rod is to be step-like chute; When above-mentioned annular cover locks together above-mentioned roll bar and above-mentioned locating rod, the last ladder of the stairstepping chute of above-mentioned locating rod withstands the protrusion position of the elastic hook inboard of above-mentioned lock dog, make the inclination position of the elastic hook of above-mentioned lock dog upwards state the outer side shifting of locating rod, above-mentioned elastic hook is exposed from the chute of above-mentioned locating rod slightly; When carrying out identical operation, the ejector pin head reach in the above-mentioned nail tube is rebounded above-mentioned elastic hook again after the axle center flexural deformation of above-mentioned locating rod; When after the ejector pin head in the above-mentioned nail tube drives above-mentioned elastic hook, moving the annular cover release lock that makes on the above-mentioned lock dog and living in to state the position of roll bar and locating rod, the protrusion position of the elastic hook inboard of above-mentioned lock dog breaks away from the downstairs that springs into above-mentioned stairstepping chute behind the last ladder of stairstepping chute of above-mentioned locating rod, makes the elastic hook of above-mentioned lock dog break away from ejector pin head in the above-mentioned nail tube.

6, nail anvil rotation controling mechanism according to claim 4 is characterized in that, is with sheath in the groove of the periphery of the elastic hook of above-mentioned lock dog; Before carrying out the operation that coincide, above-mentioned sheath can be protected the elastic hook of above-mentioned lock dog not deformed by unexpected effect or move; When carrying out identical operation, ejector pin head reach in the above-mentioned nail tube depress can push open behind the above-mentioned elastic hook above-mentioned sheath make sheath no longer influence above-mentioned lock dog elastic hook distortion or move, above-mentioned elastic hook is rebounded after the axle center flexural deformation of above-mentioned locating rod again; When moving the annular cover release lock that makes on the above-mentioned lock dog living in to state the position of roll bar and locating rod after the ejector pin head in the above-mentioned nail tube drives above-mentioned elastic hook, above-mentioned nail anvil can vert moving at the effect downside of above-mentioned inclination spring.

7, surgical tubular anastomosing device according to claim 1, it is characterized in that, in the above-mentioned nail anvil rotation controling mechanism, the front end of the above-mentioned locating hole of the ejector pin head in the above-mentioned nail tube in the nail tube has the switching hole, and the switching hole that above-mentioned anvil pull rod can be passed above-mentioned ejector pin head moves forward and backward; When carrying out identical operation, ejector pin head reach in the above-mentioned nail tube, the rear in the switching hole of above-mentioned ejector pin head rebounds above-mentioned elastic hook to be hooked in above-mentioned ejector pin head again after the axle center flexural deformation of above-mentioned locating rod switching hole, the above-mentioned elastic hook auditory tone cues that the clashes into above-mentioned switching hole operation that coincide is simultaneously finished; After the operation that coincide is finished, ejector pin head in the above-mentioned nail tube oppositely moves relative to above-mentioned locating rod, the switching hole of above-mentioned ejector pin head is moved after driving above-mentioned lock dog by above-mentioned elastic hook, make the annular on the above-mentioned lock dog overlap the position that release lock lives in to state roll bar and locating rod, above-mentioned nail anvil can vert moving at the effect downside of above-mentioned inclination spring.

8, a kind of surgical tubular anastomosing device, its ingredient comprises: cervical region is anastomat body straight shape or bending, be installed in the nail tube of above-mentioned anastomat body head, be installed in the nail anvil in above-mentioned nail tube the place ahead, be installed in ejector pin head and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of above-mentioned nail anvil and with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the above-mentioned nail anvil and with above-mentioned nail tube in the corresponding cutter anvil in endless knife position, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the anvil pull rod of above-mentioned nail anvil, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the ejector pin bar of above-mentioned ejector pin head and endless knife, be installed in the pivotable firing handle of above-mentioned anastomat body portion, be installed in the adjusting knob of above-mentioned anastomat body afterbody, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on above-mentioned firing handle side, be installed in the indicating mechanism of above-mentioned anastomat body portion, by the worm drive between above-mentioned adjusting knob and the anvil pull rod anvil pull rod is moved forward and backward to regulate the nail anvil position adjusting mechanism of the distance between above-mentioned nail anvil and the nail tube in above-mentioned anastomat body, promote above-mentioned ejector pin bar by above-mentioned firing handle and in above-mentioned anastomat body, move forward, be installed in other auxiliary spare part of above-mentioned anastomat body inside to release the above-mentioned anastomosis staple in the above-mentioned nail tube and the firing lock of endless knife;

It is characterized in that: the periphery of the head of above-mentioned anastomat body has L shaped locating slot and sour jujube tooth, above-mentioned nail tube locating convex block and sour jujube tooth arranged in interior week; When above-mentioned nail tube inserted the head of above-mentioned anastomat body, the locating convex block in week entered the bottom of the straight trough of L shaped locating slot in the above-mentioned nail tube along the L shaped locating slot of above-mentioned anastomat body head; Be inserted in when above-mentioned nail tube rotate again on the head of above-mentioned anastomat body after, the locating convex block in week enters the bottom of the curved groove of L shaped locating slot in the above-mentioned nail tube along the L shaped locating slot of above-mentioned anastomat body head, the sour jujube tooth strain displacement back in interior week of above-mentioned nail tube is meshing with each other with the sour jujube tooth of the periphery of the head of above-mentioned anastomat body simultaneously, above-mentioned nail tube can be fixed on one's body the above-mentioned anastomat.

9, a kind of surgical tubular anastomosing device, its ingredient comprises: cervical region is anastomat body straight shape or bending, be installed in the nail tube of above-mentioned anastomat body head, be installed in the nail anvil in above-mentioned nail tube the place ahead, be installed in ejector pin head and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of above-mentioned nail anvil and with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the above-mentioned nail anvil and with above-mentioned nail tube in the corresponding cutter anvil in endless knife position, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the anvil pull rod of above-mentioned nail anvil, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the ejector pin bar of above-mentioned ejector pin head and endless knife, be installed in the pivotable firing handle of above-mentioned anastomat body portion, be installed in the adjusting knob of above-mentioned anastomat body afterbody, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on above-mentioned firing handle side, be installed in the indicating mechanism of above-mentioned anastomat body portion, by the worm drive between above-mentioned adjusting knob and the anvil pull rod anvil pull rod is moved forward and backward to regulate the nail anvil position adjusting mechanism of the distance between above-mentioned nail anvil and the nail tube in above-mentioned anastomat body, promote above-mentioned ejector pin bar by above-mentioned firing handle and in above-mentioned anastomat body, move forward, be installed in other auxiliary spare part of above-mentioned anastomat body inside to release the above-mentioned anastomosis staple in the above-mentioned nail tube and the firing lock of endless knife;

It is characterized in that: there is pushing slice of nail the front portion of the ejector pin head in the above-mentioned nail tube, there is the ejector pin seat at the rear portion, there is the ejector pin extension bar inside, there is the ejector pin slide bar front portion of above-mentioned ejector pin bar, the front portion of above-mentioned ejector pin extension bar has to piece, postmedian has fork arm, afterbody has axial groove and circumferential slot, the front portion of above-mentioned ejector pin slide bar has crotch, pushing slice of nail on the above-mentioned ejector pin head is inserted in the anastomosis staple hole of above-mentioned nail tube, the ejector pin seat that supports piece and above-mentioned ejector pin head of above-mentioned ejector pin extension bar is fixedly connected, the fork arm of above-mentioned ejector pin extension bar is inserted in the inner support of above-mentioned nail tube, crotch on the above-mentioned ejector pin slide bar inserts the axial groove of above-mentioned ejector pin extension bar earlier, enter the circumferential slot of above-mentioned ejector pin extension bar after rotating again, above-mentioned ejector pin head is moved forward and backward with above-mentioned ejector pin bar.

10, a kind of surgical tubular anastomosing device, its ingredient comprises: cervical region is anastomat body straight shape or bending, be installed in the nail tube of above-mentioned anastomat body head, be installed in the nail anvil in above-mentioned nail tube the place ahead, be installed in ejector pin head and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of above-mentioned nail anvil and with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the above-mentioned nail anvil and with above-mentioned nail tube in the corresponding cutter anvil in endless knife position, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the anvil pull rod of above-mentioned nail anvil, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the ejector pin bar of above-mentioned ejector pin head and endless knife, be installed in the pivotable firing handle of above-mentioned anastomat body portion, be installed in the adjusting knob of above-mentioned anastomat body afterbody, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on above-mentioned firing handle side, be installed in the indicating mechanism of above-mentioned anastomat body portion, by the worm drive between above-mentioned adjusting knob and the anvil pull rod anvil pull rod is moved forward and backward to regulate the nail anvil position adjusting mechanism of the distance between above-mentioned nail anvil and the nail tube in above-mentioned anastomat body, promote above-mentioned ejector pin bar by above-mentioned firing handle and in above-mentioned anastomat body, move forward, be installed in other auxiliary spare part of above-mentioned anastomat body inside to release the above-mentioned anastomosis staple in the above-mentioned nail tube and the firing lock of endless knife;

It is characterized in that: three faces in the ejector pin hole in each the anastomosis staple hole in the above-mentioned nail tube front end face are three faces of cuboid, and another in each above-mentioned ejector pin hole is the concentric face of cylinder near the face of above-mentioned nail tube periphery; Three faces on procephalic each pushing slice of nail of above-mentioned ejector pin are three faces of cuboid, and another in each above-mentioned pushing slice of nail is the concentric face of cylinder near the face of above-mentioned ejector pin head periphery; The above-mentioned face of cylinder can be used as the above-mentioned ejector pin hole of tens distributions or the processing datum of above-mentioned pushing slice of nail; Procephalic each the above-mentioned pushing slice of nail of above-mentioned ejector pin is corresponding respectively with the position in forward each the above-mentioned ejector pin hole of above-mentioned nail tube, and can insert each above-mentioned ejector pin hole respectively, and the face of cylinder on the above-mentioned pushing slice of nail and the face of cylinder in the above-mentioned ejector pin hole are the concentric circular cylinder at this moment.

11, a kind of surgical tubular anastomosing device, its ingredient comprises: cervical region is anastomat body straight shape or bending, be installed in the nail tube of above-mentioned anastomat body head, be installed in the nail anvil in above-mentioned nail tube the place ahead, be installed in ejector pin head and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of above-mentioned nail anvil and with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the above-mentioned nail anvil and with above-mentioned nail tube in the corresponding cutter anvil in endless knife position, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the anvil pull rod of above-mentioned nail anvil, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the ejector pin bar of above-mentioned ejector pin head and endless knife, be installed in the pivotable firing handle of above-mentioned anastomat body portion, be installed in the adjusting knob of above-mentioned anastomat body afterbody, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on above-mentioned firing handle side, be installed in the indicating mechanism of above-mentioned anastomat body portion, by the worm drive between above-mentioned adjusting knob and the anvil pull rod anvil pull rod is moved forward and backward to regulate the nail anvil position adjusting mechanism of the distance between above-mentioned nail anvil and the nail tube in above-mentioned anastomat body, promote above-mentioned ejector pin bar by above-mentioned firing handle and in above-mentioned anastomat body, move forward, be installed in other auxiliary spare part of above-mentioned anastomat body inside to release the above-mentioned anastomosis staple in the above-mentioned nail tube and the firing lock of endless knife;

It is characterized in that: between ejector pin head in the above-mentioned nail tube and the endless knife circular gasket is arranged, there is aperture the side of above-mentioned endless knife, the side of above-mentioned ejector pin head has and the lateral aperture position corresponding groove of above-mentioned endless knife, above-mentioned pad is put into above-mentioned ejector pin head, again with the rearward end seat of above-mentioned endless knife on above-mentioned pad, the aperture that then locking plate is passed above-mentioned endless knife inserts in the groove of above-mentioned ejector pin head, and above-mentioned endless knife is fixed on the above-mentioned ejector pin head.

12, a kind of surgical tubular anastomosing device, its ingredient comprises: cervical region is the anastomat body of bending, be installed in the nail tube of above-mentioned anastomat body head, be installed in the nail anvil in above-mentioned nail tube the place ahead, be installed in ejector pin head and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of above-mentioned nail anvil and with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the above-mentioned nail anvil and with above-mentioned nail tube in the corresponding cutter anvil in endless knife position, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the anvil pull rod of above-mentioned nail anvil, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the ejector pin bar of above-mentioned ejector pin head and endless knife, be installed in the pivotable firing handle of above-mentioned anastomat body portion, be installed in the adjusting knob of above-mentioned anastomat body afterbody, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on above-mentioned firing handle side, be installed in the indicating mechanism of above-mentioned anastomat body portion, by the worm drive between above-mentioned adjusting knob and the anvil pull rod anvil pull rod is moved forward and backward to regulate the nail anvil position adjusting mechanism of the distance between above-mentioned nail anvil and the nail tube in above-mentioned anastomat body, promote above-mentioned ejector pin bar by above-mentioned firing handle and in above-mentioned anastomat body, move forward, be installed in other auxiliary spare part of above-mentioned anastomat body inside to release the above-mentioned anastomosis staple in the above-mentioned nail tube and the firing lock of endless knife;

It is characterized in that: above-mentioned anastomat body is made up of curved cervical region and body portion, each is closed up above-mentioned curved cervical region and body portion by two slit bamboo or chopped woods shell made of plastic and forms after fixing, inboard at two slit bamboo or chopped wood shells of above-mentioned curved cervical region has dividing plate, aforementioned barriers is both as the reinforcement of the curved cervical region of above-mentioned anastomat body, again the guide plate that moves forward and backward in above-mentioned anastomat body as above-mentioned anvil pull rod and ejector pin bar; Two slit bamboo or chopped wood shells of the curved cervical region of above-mentioned anastomat body close up fixing after, be with above-mentioned nail tube in the front portion of above-mentioned curved cervical region, close up fixing back at the rear portion of above-mentioned curved cervical region by two slit bamboo or chopped wood shells of the body portion of above-mentioned anastomat body and clamp.

13, a kind of surgical tubular anastomosing device, its ingredient comprises: cervical region is anastomat body straight shape or bending, be installed in the nail tube of above-mentioned anastomat body head, be installed in the nail anvil in above-mentioned nail tube the place ahead, be installed in ejector pin head and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along the anastomosis staple of circumferential array, be arranged on the end face of above-mentioned nail anvil and with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, be installed in the above-mentioned nail anvil and with above-mentioned nail tube in the corresponding cutter anvil in endless knife position, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the anvil pull rod of above-mentioned nail anvil, can in above-mentioned anastomat body, move forward and backward, its head is equipped with the ejector pin bar of above-mentioned ejector pin head and endless knife, be installed in the pivotable firing handle of above-mentioned anastomat body portion, be installed in the adjusting knob of above-mentioned anastomat body afterbody, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on above-mentioned firing handle side, be installed in the indicating mechanism of above-mentioned anastomat body portion, by the worm drive between above-mentioned adjusting knob and the anvil pull rod anvil pull rod is moved forward and backward to regulate the nail anvil position adjusting mechanism of the distance between above-mentioned nail anvil and the nail tube in above-mentioned anastomat body, promote above-mentioned ejector pin bar by above-mentioned firing handle and in above-mentioned anastomat body, move forward, be installed in other auxiliary spare part of above-mentioned anastomat body inside to release the above-mentioned anastomosis staple in the above-mentioned nail tube and the firing lock of endless knife;

It is characterized in that: above-mentioned firing handle is made up of two plate shapes identical metal handle chip and a plastic handle cover, the front upper part of above-mentioned handle chip has handle hole and driving lever, postmedian that elongate rod is arranged, the front upper part of above-mentioned taper knob has locking plate, posterior part to be furnished with slot, and the driving lever of above-mentioned handle chip can promote above-mentioned ejector pin bar and move; After the elongate rod of above-mentioned handle chip was inserted in the slot of above-mentioned taper knob, the locking plate of above-mentioned taper knob was positioned at the front portion of the handle hole of above-mentioned handle chip; Can be fixed together above-mentioned handle chip and taper knob insert the axle that connects with above-mentioned anastomat body pivot in above-mentioned handle hole after this moment.

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