CN1695563A - Tube type anastomat for alimentary canal - Google Patents
Tube type anastomat for alimentary canal Download PDFInfo
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- CN1695563A CN1695563A CN 200510024605 CN200510024605A CN1695563A CN 1695563 A CN1695563 A CN 1695563A CN 200510024605 CN200510024605 CN 200510024605 CN 200510024605 A CN200510024605 A CN 200510024605A CN 1695563 A CN1695563 A CN 1695563A
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Abstract
A tubular coupling device for digestive tract features that the clasp structure is used for the coupling between plastic and/or metallic parts, the shape of the end face of cutting stock is changed for lower resistance, the ratchet structure is used in the safeguard for high safety and sound prompting, and the marking rule is used to the indication window for high effect to indicate position.
Description
Technical field
The present invention relates to the Digective canal tubular anastomat that is used for replacing the free-hand identical operation of surgical operation employing needlework, particularly relate to disposable cervical region and be Digective canal tubular anastomat straight shape or bending.
Background technology
Various Digective canal tubular anastomats just are being widely used in the human body alimentary canal tissue that coincide in surgical operation, can reduce operating time, improve the operation quality.They are normally used for end ends such as esophagus in the digestive tract, stomach, duodenum, small intestinal, colon and rectum, distolateral and side to side anastomosis operation, be 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, be applicable to also that blood stasis excision stomach function regulating pylorus is made mouthful to wait an operation that in organ, forms annular channel.
United States Patent (USP) 4319576,4603693, the Digective canal tubular anastomat of introducing in 5193731 and 5350104, 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 pivotable firing handle of anastomat body portion, be installed in the other insurance institution of firing handle, be installed in the adjusting knob of anastomat body afterbody, be installed in the nail anvil position indicating mechanism of anastomat body portion, be installed in the anvil pull rod of anastomat body inside, ejector pin bar and other auxiliary spare part.In the nail tube, anastomosis staple, ejector pin seat and endless knife are housed.Anastomosis staple in the nail bin of nail tube circular front end portion along circumferential array.Nail anvil with nail tube opposing end faces on, be arranged with the anastomosis staple 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 seat in the nail tube will be followed closely in the tube.Anastomosis staple can adopt stainless steel silk, tantalum wire, titanium silk or other to have the tinsel manufacturing of similar performance.
When using Digective canal tubular anastomat, at first Digective canal tubular anastomat 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 Digective canal tubular anastomat.
The Digective canal tubular anastomat of clinical use have that repeatability uses with disposable two kinds.The function of the Digective canal tubular anastomat 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.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 digestive organs' such as esophagus, harmonization of the stomach intestinal sickness rate is very high, the craft of these tubular organ coincide very difficult again, the operation difficult quality guarantee, therefore disposable Digective canal tubular anastomat is a kind of disposable surgical instruments of present clinical use amount maximum.Though the disposable Digective canal tubular anastomat of clinical use can reduce the cross infection in the operation, production cost is higher.In the disposable Digective canal tubular anastomat of introducing in the United States Patent (USP) 5271544 and 6193129 a large amount of metalworking part and injection-moulded plastic part are arranged, and punching parts is less.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is, because disposable Digective canal tubular anastomat is the medical apparatus and instruments of large-scale production, wherein the production cost of metalworking part is greater than injection-moulded plastic part, the production cost of injection-moulded plastic part is greater than punching parts, and therefore the production cost of disposable Digective canal tubular anastomat also need reduce.
At present, most of part of disposable Digective canal tubular anastomat is made of plastics, being connected between plastic part and the plastic part, plastic part has very big influence with the quality and the cost that are connected disposable Digective canal tubular anastomat between the metal parts.The disposable Digective canal tubular anastomat of being introduced in the United States Patent (USP) 5271544, the left and right anastomat body that its anastomat body portion is made of plastics closes up the back and adopts ultrasonic bonding to form, its curved cervical region adopts metal winding pipe to make, and roll extrusion is connected the nail tube that make by metal canula and plastics respectively at the two ends of metal winding pipe with the anastomat body.The dissatisfied place of making us of the disposable curved neck formula Digective canal tubular anastomat of this style is, because the intensity of the left and right anastomat body that metal winding pipe and plastics are made differs greatly, working of plastics has the trend of creep under stress, be difficult to the connection effect that reaches satisfied.In addition, metal winding pipe inside is difficult to be processed into complicated shape, the anvil pull rod of existing Digective canal tubular anastomat and ejector pin bar all stack installation in curved neck inside, can the phase mutual friction during use and extruding, and not only increase anvil pull rod and ejector pin bar moving resistance but also reduced mobile accuracy.The left and right anastomat body that the disposable Digective canal tubular anastomat of being introduced in the United States Patent (USP) 5685474, its anastomat body are made of plastics closes up and forms, and left and right anastomat body adopts metallic screw and rivet to link together.The dissatisfied place of making us of the disposable Digective canal tubular anastomat of this style is, because the intensity of the left and right anastomat body that metallic screw and rivet and plastics are made differs greatly, working of plastics has the trend of creep under stress, be difficult to the connection effect that reaches satisfied.The disposable Digective canal tubular anastomat of being introduced in above-mentioned two kinds of United States Patent (USP)s, ejector pin seat that is made of plastics and metal ring cutter adopt ultrasonic bonding to reach purpose of connecting, and nail tube shell and nail bin adopt the bonding purpose of connecting that reaches.The dissatisfied place of making us of the disposable Digective canal tubular anastomat of these two kinds of styles is, the connection precision of ultrasonic bonding is relevant with the shape of equipment, technical ability and part, process time is longer, and bonding agent can flow into and do not need bonding position, also environment is had pollution; In addition, ultrasonic bonding is relevant with physical property with the chemical properties such as chemical constituent, fusing point, coefficient of friction, hardness, surface characteristic and planform of connected material with bonding quality, thereby significantly reduced the range of choice of material, may be difficult to find only material.Therefore being connected also and need improving between being connected between the plastic part of disposable Digective canal tubular anastomat and the plastic part, plastic part and the metal parts.
When organizing the anastomosis staple that clamps again after clamped in the firing handle push nail tube when waiting to coincide, whether the anastomosis staple that the surgeon often needs to understand U-shaped has been bent to B shape will organize identical.The Digective canal tubular anastomat of introducing in the United States Patent (USP) 5685474, when firing handle during by the anastomosis staple in the ejector pin bar push nail tube, the ejector pin bar moves forward in the anastomat body; To organize when coincideing when the anastomosis staple of U-shaped has been bent to B shape, the ejector pin bar squeezes off a metallic rod in the anastomat body, the auditory tone cues surgeon who sends during the metallic rod fracture: the anastomosis staple of U-shaped has been bent to B shape and will organize identical.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is squeeze off the power that metallic rod need consume the bigger clamping firing handle of surgeon, and the position of metallic rod fracture to be also not really accurate.The Digective canal tubular anastomat of introducing in the United States Patent (USP) 5271544 and 6193129, when being bent to B shape, will organize when coincideing the anastomosis staple of U-shaped, endless knife is cut off the cutter anvil in the nail anvil, the auditory tone cues surgeon who sends during the fracture of cutter anvil: the anastomosis staple of U-shaped has been bent to B shape and will have organized identical.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is, the sound size of sending during the fracture of cutter anvil is relevant with the speed of the hardness of cutter anvil material and cut-out, the sound that promptly ruptures clearly need consume bigger power, and the position of cutter anvil fracture is also not exclusively corresponding with the position that anastomosis staple is bent to B shape.Therefore the identical auditory tone cues mechanism that finishes of disposable Digective canal tubular anastomat also need improve.
The firing handle of passing through of Digective canal tubular anastomat is released anastomosis staple and the identical at present existing several styles of firing lock of endless knife execution tissue.The Digective canal tubular anastomat of introducing in the United States Patent (USP) 5271544, endless knife cutter anvil be complete circumference as use.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is that when firing handle was coincide by anastomosis staple in the ejector pin bar push nail tube and endless knife execution tissue, most power consumption was on endless knife cutter anvil.The Digective canal tubular anastomat of introducing in the United States Patent (USP) 6193129, the blade of endless knife is a curve-like, endless knife cutter anvil begin to be the crest of the blade of endless knife, can to reduce the active force of endless knife cutter anvil as use.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is that the endless knife of curve-like blade is difficult to make.Another of the Digective canal tubular anastomat of above-mentioned two kinds of styles makes us dissatisfied place, when firing handle is coincide by ejector pin seat in the ejector pin bar push nail tube and endless knife execution tissue, ejector pin seat and endless knife are with the clamping of firing handle and loosen and move forward and backward, in case the surgeon firmly relaxes at need in the clamping firing handle, then ejector pin seat and endless knife also along with after move, the anastomosis staple of U-shaped was not bent to B shape and will organize identically this moment, and endless knife is not excised excess tissue yet.When if the surgeon clamps firing handle once more, ejector pin seat and endless knife may no longer act on the original position, cause incomplete anastomosis staple to be shaped and incomplete cutting tissue.The Digective canal tubular anastomat of introducing in the United States Patent (USP) 5685474, when firing handle was carried out tissue and coincide by ejector pin seat in the ejector pin bar push nail tube and endless knife, ejector pin seat and endless knife were with the clamping of firing handle and loosen and only move forward and do not move backward.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is to finish coincide operation back ejector pin seat and endless knife protrusion nail tube, the tissue around can damaging.Therefore the firing lock of Digective canal tubular anastomat also need improve.
After finishing the operation that coincide, because the area of nail anvil is greater than the area of anastomotic stoma, Digective canal tubular anastomat withdraws from the comparison difficulty from anastomotic stoma, may tear anastomotic stoma.The at present existing several styles of the nail anvil inclination rotating mechanism of Digective canal tubular anastomat.The Digective canal tubular anastomat of introducing in United States Patent (USP) 5639008 adopts pivotally connectedly between nail anvil and the anvil pull rod, have a spring holder to block anvil pull rod in the nail anvil nail anvil can not be rotated around the anvil pull rod inclination; When coincideing operation, the push rod of the endless knife inboard in the nail tube is pushed spring holder open, so that the spring in nail anvil can rotate nail anvil around the anvil pull rod inclination under promoting.Because the nail anvil after inclination is rotated withdraws from the nail anvil of Digective canal tubular anastomat perpendicular to the sectional area of the anvil pull rod axis direction sectional area less than anastomotic stoma easily from anastomotic stoma.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is that the push rod of the endless knife inboard in the nail tube occupies certain space in the nail tube, reduced to hold and treated identical space of organizing stub; On the other hand, the push rod in spring holder in the nail anvil and spring and the nail tube is exposed to the stub place that treats identical tissue, waits to coincide and organizes stub can influence the correct operation of spring holder, spring and push rod.Therefore the nail anvil inclination rotating mechanism of Digective canal tubular anastomat also need improve.
The at present existing several styles of the nail anvil position indicating mechanism of Digective canal tubular anastomat.The Digective canal tubular anastomat of introducing in the United States Patent (USP) 5639008, employing show that in the groove of adjusting knob afterbody the mode of anvil pull rod afterbody clamps the position for the treatment of identical tissue to indicate anvil pull rod pulling nail anvil to reach.The dissatisfied place of making us of the Digective canal tubular anastomat of this style is that the groove of adjusting knob afterbody constantly changes direction with the rotation of adjusting knob, the influence observation.The Digective canal tubular anastomat of in United States Patent (USP) 5271544 and 6193129, introducing, adopt anvil pull rod to drive a sweep hand, only when anvil pull rod pulling nail anvil reaches the position that clamps the tissue of waiting to coincide, sweep hand just can appear in the indication window in the anastomat body portion, amplifies the indication grip thickness.The dissatisfied place of making us of the Digective canal tubular anastomat of above-mentioned two kinds of styles is, when anvil pull rod pulling nail anvil does not reach the position that clamps the tissue of waiting to coincide, indicative function does not play in indicating mechanism, the surgeon can't know the particular location that anvil pull rod pulling nail anvil arrives, and is not easy to determine to carry out the mode of operation of pilot process.Therefore the indicating mechanism of Digective canal tubular anastomat also need improve.
By above-mentioned obviously as can be seen, a large amount of not in specie Digective canal tubular anastomats have been designed now, and the development work of new Digective canal tubular anastomat is still continuing, so that the Digective canal tubular anastomat that uses in a large number in the world every year is done further to improve, make more convenient operation, laborsaving, reliable and correct, it is more convenient to make, and cost is lower.
Summary of the invention
The objective of the invention is to propose a kind of Digective canal tubular anastomat, realize being connected between being connected between plastic part and the plastic part, plastic part and the metal parts adopting buckle structure as far as possible, thereby under the state that does not stress, plastic part stressed very little, be more suitable for the operating characteristic of plastic part, and easy to assembly, assembly precision is high.
Another object of the present invention is to propose a kind of Digective canal tubular anastomat, realize reducing the resistance of endless knife cutter anvil of Digective canal tubular anastomat and the resistance of firing lock as far as possible, thereby reduce percussion power as far as possible.
Another object of the present invention is to propose a kind of Digective canal tubular anastomat, realize that insurance institution is except having safety effect, sound that also having coincide finishes and position indicating effect and clamp anti-in the firing handle process and open effect, operation can be do not influenced thereby the surgeon firmly can be relaxed also at need in the clamping firing handle, the time that coincide and finished can also be in time understood.
Another object of the present invention is to propose a kind of Digective canal tubular anastomat, be implemented in the indication that scale on the indication window of Digective canal tubular anastomat has more detailed nail anvil position, thereby make the particular location that the surgeon can clearer understanding nail anvil, be convenient to the correct corresponding operation of selecting.
Another object of the present invention is to propose a kind of Digective canal tubular anastomat, realize adopting less parts, do not occupy original space in the nail tube, can reach the effect that nail anvil rotates around the anvil pull rod inclination automatically after finishing the operation that coincide, because the nail anvil after inclination is rotated is perpendicular to the sectional area of the nail tube axis direction sectional area less than anastomotic stoma, thereby make the surgeon can take out Digective canal tubular anastomat easily.
Another object of the present invention is to propose a kind of Digective canal tubular anastomat, realize that the metalworking part adopts injection-moulded plastic part or punching parts to replace as far as possible, injection-moulded plastic part adopts punching parts to replace as far as possible, thereby reduces work hours, reduces production costs.
Task of the present invention is achieved through the following technical solutions: Digective canal tubular anastomat comprises, cervical region is anastomat body straight shape or bending, be installed in the nail tube of anastomat body head, be installed in the nail anvil in nail tube the place ahead, be installed in ejector pin seat and endless knife in the nail tube, be installed in nail tube rounded ends and along circumferential array, can be by the anastomosis staple of ejector pin seat release, 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 seat, be installed in the pivotable firing handle of anastomat body portion, be installed in the adjusting knob of anastomat body afterbody, be installed in the insurance institution that firing handle is pulled the trigger by mistake that prevents on firing handle side, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by adjusting knob anvil pull rod is moved forward and backward to regulate the nail anvil position adjusting mechanism of the distance between nail anvil and the nail tube in the anastomat body, promoting the ejector pin bar by firing handle moves in the anastomat body to promote the ejector pin seat in the nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of anastomat body inside.
A large amount of plastic parts is arranged in the disposable Digective canal tubular anastomat.Compare with metal parts, the stress that plastic part can bear is less, and the trend of creep is arranged under stress.Compare with other connected modes, it is less to adopt the buckle structure connected mode to be connected the influence of the chemical property of plastic material and physical property, thereby has increased the range of choice of plastic material, is convenient to find only plastic material.Therefore, adopt buckle structure in being connected between the present invention's being connected between plastic part and plastic part, plastic part and the metal parts as far as possible, it is stressed very little that plastic part connects the back at buckle, can guarantee the assembly precision of plastic part inside, be more suitable for the operating characteristic of plastic part, and assembling is also very convenient.Only the part that unassembled movable members or be difficult to adopts buckle structure to connect in inside just considers to select to adopt other connected mode.Buckle structure can be selected various structures such as cantilever beam locking member, plane locking member, non-return locking member, twist mode locking member or circular ring type locking member for use.
The left and right anastomat body that anastomat body among the present invention is made of plastics closes up and forms.Left and right anastomat body also can be divided into body portion and cervical region two parts respectively.After the parts that are positioned at anastomat body inside are installed in the anastomat body, under the effect of buckle structure, lock when left and right anastomat body closes up and link together.Flexible fastener and fixing fastener in the buckle structure, Elastic buckle spare withholds fixedly fastener through strain, make Elastic buckle spare and fixedly fastener locking link together.Elastic buckle spare in the buckle structure and fixedly fastener can be separately fixed on one's body the left and right anastomat.When left and right anastomat body closed up, left and right anastomat Elastic buckle spare on one's body withheld fixedly fastener, locked when left and right anastomat body is closed up to link together under the effect of buckle structure.Another kind of scheme is that the fixedly fastener in the buckle structure is fixed on one of them of left and right anastomat body.When left and right anastomat body closes up, Elastic buckle spare in the buckle structure is never with after inserting in the anastomat body of fixing fastener, one end of Elastic buckle spare be pressed in be not with fixing fastener anastomat on one's body, on the fixedly fastener of the other end in strain withholds the anastomat body that has fixing fastener, under the effect of buckle structure, lock when left and right anastomat body is closed up and link together.Also have a kind of scheme to be, flexible fastener in the buckle structure, fixedly fastener and scotch.When left and right anastomat body closes up, make Elastic buckle spare after strain withholds fixedly fastener, again scotch is inserted Elastic buckle spare and withhold in the space that forms behind the fixing fastener to stop Elastic buckle spare to be thrown off from fixing fastener.
The front end of the ejector pin bar of being made by sheet metal is stamped altogether and is bent into four push rods.The front end of ejector pin bar also can be bent into the dihedral push rod of four band fillets by the sheet metal punching press.Four push rods stretch in the nail tube from the nail tube rear end and are connected with the ejector pin seat.After the push rod on the ejector pin bar was inserted on the ejector pin seat, the ejector pin seat of the push rod of metal and plastics was locked under the effect of buckle structure and is linked together.Flexible fastener and fixing fastener in the buckle structure, Elastic buckle spare withholds fixedly fastener through strain, make Elastic buckle spare and fixedly fastener locking link together.
The left and right anastomat body that is made of plastics close up the anastomat body that forms and the nail tube that is made of plastics in buckle structure non-return flexure strip and the effect of shrinkage pool under lock and link together.Non-return flexure strip in locking groove and the buckle structure is arranged on the outer wall of anastomat body front end.Shrinkage pool in rib and the buckle structure is arranged on the nail tube inwall.In the time of in the front end that is closed up the anastomat body that forms by left and right anastomat body inserts the nail tube, the rib of nail tube inwall moves along the locking groove on the anastomat body outer wall, non-return flexure strip on anastomat body outer wall springs in the shrinkage pool of following closely on the tube inwall, and the nail tube is linked together with the locking of anastomat body under the effect of buckle structure.Simultaneously, rotate on the outer wall of anastomat body to place restrictions on the nail tube in the locking groove on the rib insertion anastomat body outer wall of nail tube inwall.Another kind of scheme is, the non-return flexure strip on the anastomat body outer wall exposes the outer wall of nail tube, presses non-return flexure strip on the anastomat body outer wall and can make disengagements that be connected between nail tube and the anastomat body, and changes a new nail tube with following closely again as required after tin pulling up.
The ejector pin seat of plastics and the endless knife of metal in buckle structure the side direction claw and the effect of catching groove under lock and link together.The rear end of endless knife periphery has the side direction claw in the buckle structure.Have the catching groove in the buckle structure in the ejector pin seat on week.After in endless knife is inserted the ejector pin seat, the side direction claw of endless knife rear end springs in the catching groove of ejector pin seat, and endless knife is linked together with the locking of ejector pin seat under the effect of buckle structure.
Nail tube shell and nail bin are arranged in the nail tube.Nail tube shell and anastomat body link together.Anastomosis staple is installed in the nail bin.Continuously connected fastener tube shell and plastics nail bin in buckle structure claw and the effect of catching groove under lock and link together.The front end in week has the claw in the buckle structure of annular spread in the nail tube shell.The corresponding position, claw position in week has the catching groove in the buckle structure of annular spread in nail bin periphery and the nail tube shell.After nail bin inserted on the nail tube shell, the claw in week buckled in the catching groove of nail bin periphery in the nail tube shell, and nail bin is linked together with the locking of nail tube shell under the effect of buckle structure.
Anvil pull rod and nail anvil in buckle structure claw and the effect of inserted link under lock and link together.The front end of anvil pull rod has nail anvil extension bar and locking bar, and there is the nail anvil pulling-on piece at the middle part, and there is screw rod the rear end.The front end of nail anvil extension bar is connected with nail anvil, and there is the inserted link that has circumferential recess the rear end of nail anvil extension bar.The back is connected with the front end of screw rod in the slit of the rear end insertion screw front end of nail anvil pulling-on piece, and the back is connected with locking bar in the slit of the front end insertion locking bar rear end of nail anvil pulling-on piece.Have claw on the nail anvil pulling-on piece in the slit of insertion locking bar rear end.The front end of locking bar has the jack that can insert the inserted link on the nail anvil extension bar.Claw on the nail anvil pulling-on piece stretches in the jack of locking bar.After the inserted link on the nail anvil extension bar inserted in the jack of locking bar, the claw on the nail anvil pulling-on piece buckled in the groove of inserted link, make nail anvil together with the nail anvil extension bar in buckle structure claw and the effect of inserted link under link together with the locking bar locking of anvil pull rod.When the inserted link on the nail anvil extension bar was extracted in the jack of locking bar, inserted link opened the claw on the nail anvil pulling-on piece, and nail anvil is broken away from together with the locking bar of nail anvil extension bar and anvil pull rod.
Firing handle, percussion spring, lock and relief spring are arranged in the insurance institution among the present invention.Firing handle connects with anastomat body pivot.The percussion spring makes firing handle trend towards open state all the time.Lock connects with anastomat body pivot, and operating side and control end are arranged on the lock.Control end is used to prop up or break away from firing handle, and the operating side is used to operate the rotation of lock.Relief spring makes the control end of lock trend towards propping up the state of firing handle all the time.Have the sour jujube tooth on firing handle and the lock respectively.When coincideing operation, rotating lock makes control end break away from firing handle, unclamp lock again after the clamped rotation of firing handle, sour jujube tooth on the firing handle and the sour jujube tooth on the lock are meshing with each other under the effect of percussion spring and relief spring, make the firing handle can only clamped rotation and can not open round about.When finishing identical operation, rotate lock the sour jujube tooth of lock and the sour jujube tooth of firing handle are broken away from, the percussion spring makes firing handle be returned to open state.At this moment, unclamping lock makes control end be returned to the position of propping up firing handle under the effect of relief spring.Another kind of scheme is, when finishing identical operation, after sour jujube tooth on the firing handle of clamped rotation shifted out sour jujube tooth on the lock, bullet was to firing handle under the effect of relief spring for lock, and the strike note that sends and the position of lock are moved and reminded the surgeon to coincide to finish.At this moment, rotate lock again lock and firing handle are broken away from, the percussion spring makes firing handle be returned to open state, unclamps lock then and makes control end be returned to the position of propping up firing handle under the effect of relief spring.Insurance institution can have transfer strip and switch spring.Anvil pull rod can drive transfer strip and move backward in the anastomat body.Switching spring makes transfer strip trend towards moving towards the place ahead of anastomat body all the time.The rotation of transfer strip control lock.When departing from the grip thickness that can carry out the operation that coincide between nail anvil and the nail tube, switch spring and make transfer strip block lock all the time, opened after this moment, lock can not be rotated.When nail anvil moved to the position of the grip thickness that can carry out the operation that coincide, anvil pull rod drove transfer strip and unclamps lock, makes lock allow to be opened.Like this, insurance institution is except having safety effect, sound that also having coincide finishes and position indicating effect and clamp anti-in the firing handle process and open effect, thereby the surgeon firmly can be relaxed also at need in the clamping firing handle can not influence operation, can also in time understand the time that coincide and finished, carry out next step operation relievedly.
Being installed in the interior cutter anvil of nail anvil and being installed in the interior corresponding end face undulate in endless knife position of nail tube among the present invention.The waveform of cutter anvil end face can be various waveforms such as sine wave, semicircle ripple, sawtooth waveforms, triangular wave, square wave, trapezoidal wave.When endless knife cutter anvil, the corrugated crest of first incision knife anvil end face.Because crest only accounts for the sub-fraction of whole end face, it is less therefore to cut resistance.After the crest of cutter anvil waveform end face was cut open, cutter anvil waveform end face was torn by the limit slit edge under the effect of endless knife cutting, and the cutting resistance that is subjected to is less.Because therefore the most of power consumption when firing handle is coincide by anastomosis staple in the ejector pin bar push nail tube and endless knife execution tissue can obviously reduce percussion power by the resistance that reduces endless knife cutter anvil on endless knife cutter anvil.
Nail-anvil cap and nail anvil sheet are arranged on the nail anvil among the present invention.The nail anvil sheet is made by the sheet metal punching press, on the end face of nail anvil sheet, be arranged with follow closely tube in the corresponding anastomosis staple grooving in anastomosis staple position, have at the nail anvil sheet on the back side of anastomosis staple grooving and use the plastics coated.Nail-anvil cap is made of plastics, and makes the nail anvil sheet can adopt Ultrasonic Plastic Welding method and nail-anvil cap to weld together with the face of plastics coated.Reach the metalworking part and adopt as far as possible that injection-moulded plastic part or punching parts replace, injection-moulded plastic part adopts the displaced effect of punching parts as far as possible, thereby reduce process time, reduce production costs.
Nail anvil rotation controling mechanism among the present invention is made up of nail anvil, anvil pull rod, endless knife, cutter anvil and inclination spring.Nail anvil connects with the anvil pull rod pivot.The lateral surface of cutter anvil and the medial surface of above-mentioned nail anvil link together, and have the scotch that radially extends on the medial surface of cutter anvil, and the scotch of cutter anvil props up anvil pull rod can not rotate nail anvil around the anvil pull rod inclination.One end of inclination spring acts on the anvil pull rod, the other end acts on the nail anvil.The medial surface of endless knife is processed to coarse surface near the blade place, both can be processed into jagged surface, also can be processed into the surface through annular knurl, can also be processed into the rough surface of other modes.When coincideing operation, endless knife is cut the medial surface of connection cutter anvil and the end face between the lateral surface, and the medial surface part of cutter anvil is partly broken away from lateral surface.When finishing identical operation, the medial surface that rough surface on the medial surface of endless knife drives the cutter anvil partly breaks away from nail anvil, scotch on the medial surface of cutter anvil no longer props up anvil pull rod, anvil pull rod drives nail anvil and leaves the nail tube, and nail anvil is rotated around the anvil pull rod inclination under the effect of inclination spring.Another kind of scheme is, anvil pull rod in the nail anvil rotation controling mechanism has forward the arresting lever that extends on the side of front end, the arresting lever of anvil pull rod leans against on the side of nail anvil and anvil pull rod pivot connection place nail anvil is rotated around the anvil pull rod inclination towards a side only.The lateral surface of cutter anvil and the medial surface of nail anvil link together, and have the scotch that radially extends on the medial surface of cutter anvil, can not rotate around the anvil pull rod inclination one side the scotch of cutter anvil props up the rotating nail anvil that makes of the arresting lever of anvil pull rod.When coincideing operation, endless knife is cut the medial surface of connection cutter anvil and the end face between the lateral surface, and the medial surface part of cutter anvil is partly broken away from lateral surface.When finishing identical operation, the medial surface that rough surface on the medial surface of endless knife drives the cutter anvil partly breaks away from nail anvil, scotch on the medial surface of cutter anvil no longer props up the arresting lever of anvil pull rod, anvil pull rod drives nail anvil and leaves the nail tube, and nail anvil is rotated around the anvil pull rod inclination under the effect of inclination spring.Nail anvil rotation controling mechanism among the present invention adopts less parts, does not occupy original space in the nail tube, can reach the effect that nail anvil rotates around the anvil pull rod inclination automatically after finishing the operation that coincide.Because the nail anvil after inclination is rotated is perpendicular to the sectional area of the nail tube axis direction sectional area less than anastomotic stoma, thereby make the surgeon after finishing the operation that coincide, can take out Digective canal tubular anastomat easily.
Indicating mechanism among the present invention is made up of adjusting knob, anvil pull rod, nail anvil position indicator pointer and indication window.The cue mark that anvil pull rod drives on the nail anvil position indicator pointer moves forward and backward below the indication window that is positioned at anastomat body portion.Scale on the indication window to do not allow to carry out the distance of coincideing between nail anvil and the nail tube of operation and position along anvil pull rod axially by marking straightway at 1: 1, the scale on the indication window marks the oblique line section to the axial angled direction that allows to carry out the distance of coincideing between nail anvil and the nail tin of operation and edge, position and anvil pull rod.Because when the cue mark on the nail anvil position indicator pointer moves axially with anvil pull rod, therefore the oblique line segment length that scale on the indication window marks along the axial angled direction with anvil pull rod has amplification in the straightway that axially marks along anvil pull rod.When make by adjusting knob anvil pull rod in the anastomat body, move forward and backward with regulate between nail anvil and the nail tin apart from the time, the cue mark that anvil pull rod drives on the nail anvil position indicator pointer moves forward and backward below the indication window that is positioned at anastomat body portion, from the scale indication nail anvil of indication window and various distances and the position between the nail tube.Scale on the indication window of Digective canal tubular anastomat of the present invention has the indication of more detailed nail anvil position, thereby makes the particular location that the surgeon can clearer understanding nail anvil, is convenient to the correct corresponding operation of selecting.
Specific implementation method and description of drawings thereof
Use way of example below, state most preferred embodiment of the present invention in conjunction with the accompanying drawings, scope of the present invention will be pointed out in the claims.Will be appreciated that some or all accompanying drawing all is for the explanation sketch of most preferred embodiment of the present invention is described, and the full-size(d) of part shown in not depicting.With reference to being described in detail of most preferred embodiment, understand with will be more readily apparent from reach the present invention above-mentioned with other the purpose and the practical ways of advantage.
Fig. 1 is the front view of the Digective canal tubular anastomat of the expression embodiment of the invention;
Fig. 2 is the partial sectional view that the Digective canal tubular anastomat of presentation graphs 1 does not clamp anastomat head when treating identical organizing;
Fig. 3 is the partial sectional view of Digective canal tubular anastomat anastomat head when clamping and identical organizing of presentation graphs 1;
Fig. 4 is the partial sectional view of Digective canal tubular anastomat anastomat head after finishing the tissue that coincide of presentation graphs 1;
Fig. 5 is the local amplification stereogram (detailed structure that does not show other positions of cutter anvil) of cutter anvil waveform end face of the Digective canal tubular anastomat of presentation graphs 1;
Fig. 6 is that the endless knife of Digective canal tubular anastomat of presentation graphs 1 is near the local amplification view at blade place;
Fig. 7 is the cutaway view (mainly showing the dihedral push rod on the ejector pin bar) in 1-1 cross section of the Digective canal tubular anastomat of presentation graphs 3;
Fig. 8 is the cutaway view (mainly showing the buckle structure on the anastomat body cervical region) after becoming a full member in the 2-2 cross section of the Digective canal tubular anastomat of presentation graphs 1;
Fig. 9 is the partial sectional view in 3-3 cross section of the Digective canal tubular anastomat of presentation graphs 8;
Figure 10 is the cutaway view (mainly showing the buckle structure on anastomat body portion and the cervical region intersection) after becoming a full member in the 4-4 cross section of the Digective canal tubular anastomat of presentation graphs 1;
Figure 11 is that the Digective canal tubular anastomat of presentation graphs 1 is not carried out and coincide that anastomat body portion removes left anastomat partial view after one's death when organizing;
Figure 12 is that Digective canal tubular anastomat anastomat body portion when carrying out identical organizing of presentation graphs 1 removes left anastomat partial view after one's death;
Figure 13 is the partial view that Digective canal tubular anastomat anastomat body portion when finishing identical organizing of presentation graphs 1 does not remove left anastomat body;
Figure 14 is the cutaway view (mainly showing the buckle structure in the anastomat body portion) in 5-5 cross section of the Digective canal tubular anastomat of expression Figure 13;
Figure 15 is the partial sectional view in 6-6 cross section of the Digective canal tubular anastomat of expression Figure 14.
Below in conjunction with Fig. 1 to Figure 15 each parts and the mechanism of the Digective canal tubular anastomat of the embodiment of the invention are described, each parts is described and be coupled to each other and act on, the course of action and the effect of each mechanism in each operating procedure.
As shown in Figure 1, the left and right anastomat body 8 and 9 that is made of plastics of the anastomat body 7 of Digective canal tubular anastomat closes up and forms.Nail tube 10 is installed in the head of anastomat body 7.Nail anvil 11 is installed in the head of anvil pull rod 12, is positioned at the place ahead of nail tube 10.In the body portion of anastomat body 7 indication window 13, pivotable firing handle 14 and lock 15 are installed.Afterbody at anastomat body 7 is equipped with adjusting knob 16.
As Fig. 2, Fig. 3 and shown in Figure 4, being installed on the nail anvil 11 of anvil pull rod 12 heads has nail-anvil cap 17 and nail anvil sheet 18.Nail anvil sheet 18 is made by the sheet metal punching press, is arranged with on the end face of nail anvil sheet 18 and follows closely the anastomosis staple 19 positions corresponding anastomosis staple grooving 20 of tube in 10, has at nail anvil sheet 18 on the back side 21 of anastomosis staple grooving 20 to use the plastics coated.Nail-anvil cap 17 is made of plastics, and makes the face 21 of nail anvil sheet 18 usefulness plastics coateds can adopt Ultrasonic Plastic Welding method and nail-anvil cap 17 to weld together.Cutter anvil 22 is installed in the nail anvil 11.As shown in Figure 5, be installed in nail tube 10 in end face 24 undulates 25 of the corresponding cutter anvil 22 in endless knife 23 positions.As shown in Figure 6, the medial surface of endless knife 23 is processed to jagged surperficial 39 near blade 38 places.Nail anvil 11 connects with anvil pull rod 12 pivots.Anvil pull rod 12 has the arresting lever 26 that extends forward on the side of front end.The arresting lever 26 of anvil pull rod 12 leans against on the side 28 of nail anvil 11 and anvil pull rod 12 pivot connection places 27 nail anvil 11 is rotated around anvil pull rod 12 inclinations towards a side only.Annulus locking jaw 30 on the lateral surface 29 of cutter anvil 22 links together with 31 lockings of the medial surface of nail anvil 11.Have the scotch 33 that radially extends on the medial surface 32 of cutter anvil 22.Arresting lever 26 rotating one side that the scotch 33 of cutter anvil 22 props up anvil pull rod 12 can not be rotated nail anvil 11 around anvil pull rod 12 inclinations.One end of inclination spring 34 acts on the anvil pull rod 12, the other end acts on the nail anvil 11.When coincideing operation, endless knife 23 is cut the medial surface 32 of connection cutter anvil 22 and the end face 24 between the lateral surface 29, and the medial surface part 32 of cutter anvil 22 and lateral surface part 29 are broken away from.When finishing identical operation, the medial surface part 32 that on the medial surface of endless knife 23 jagged surperficial 39 drives cutter anvil 22 breaks away from nail anvil 11, scotch 33 on the medial surface 32 of cutter anvil 22 no longer props up the arresting lever 26 of anvil pull rod 12, anvil pull rod 12 drives nail anvil 11 and leaves nail tube 10, and nail anvil 11 is rotated around anvil pull rod 12 inclinations under the effect of inclination spring 34.
As shown in Figures 2 and 3, nail tube 10 is made up of nail tube shell 35, nail bin 36, ejector pin seat 37, endless knife 23 and anastomosis staple 19.Anastomosis staple 19 is installed in the nail bin 36.Anastomosis staple 19, can be released by ejector pin seat 37 along circumferential array in nail bin 36 rounded ends.On nail tube shell 35 inwalls rib 40 and shrinkage pool 41 are arranged.Locking groove 42 and non-return flexure strip 43 are arranged on the outer wall of anastomat body 7 front ends.In the time of in the front end that is closed up the anastomat body 7 that forms by left and right anastomat body 8 and 9 inserts nail tube 10, the rib 40 of nail tube shell 35 inwalls moves along the locking groove 42 on anastomat body 7 outer walls, non-return flexure strip 43 on anastomat body 7 outer walls springs in the shrinkage pool of following closely on tube shell 35 inwalls 41, nail tube 10 is locked with anastomat body 7 link together.Simultaneously, rotate on the outer wall of anastomat body 7 to place restrictions on nail tube 10 in the locking groove 42 on rib 40 insertion anastomat bodies 7 outer walls of nail tube shell 35 inwalls.As shown in Figure 4 be different with Fig. 2 and Fig. 3 a kind of embodiment that nail tube 10 is linked together with 7 lockings of anastomat body under the effect of buckle structure, non-return flexure strip 44 on anastomat body 7 outer walls also can expose the outer wall of nail tube shell 35, press non-return flexure strip 44 on anastomat body 7 outer walls and can make disengagements that be connected between nail tube 10 and the anastomat body 7, change a new nail tube 10 more as required after pulling up following closely tins 10.The rear end of endless knife 23 peripheries has side direction claw 45.Have catching groove 46 on week in the ejector pin seat 37.After endless knife 23 was inserted in the ejector pin seat 37, the side direction claw 45 of endless knife 23 rear ends sprang in the catching groove 46 of ejector pin seat 37, and endless knife 23 and 37 lockings of ejector pin seat are linked together.The front end in week has the claw 47 of annular spread in the nail tube shell 35.The corresponding position, claw 47 position in week has the catching groove 48 of annular spread in nail bin 36 peripheries and the nail tube shell 35.After nail bin 36 inserted on the nail tube shell 35, the claw 47 in week buckled in the catching groove 48 of nail bin 36 peripheries in the nail tube shell 35, and nail bin 36 and 35 lockings of nail tube shell are linked together.
As shown in Figure 1, the ejector pin bar 65 that is installed in anastomat body 7 inside is made by the sheet metal punching press, can move forward and backward in anastomat body 7.As Fig. 3 and shown in Figure 7, the front end of ejector pin bar 65 is stamped and is bent into the dihedral push rod 66 of four band fillets.Push rod 66 stretches in the nail tube 10 from the rear end of nail tube 10 and is connected with ejector pin seat 37.Flexible fastener 67 on ejector pin seat 37.Fixedly fastener 68 is arranged on push rod 66.After the push rod on the ejector pin bar 65 66 was inserted on the ejector pin seat 37, the Elastic buckle spare 67 on the ejector pin seat 37 withheld fixedly fastener 68 on the push rod 66 through strain, and ejector pin seat 37 and push rod 66 lockings are linked together.As Figure 11, Figure 12 and shown in Figure 13, there is the groove 70 that can be promoted by the driving lever 69 of firing handle 14 rear end of ejector pin bar 65 and leans against the projection 72 of pulling the trigger on the spring 81.
As Fig. 2, Fig. 3 and shown in Figure 7, the front end of anvil pull rod 12 has nail anvil extension bar 73 and locking bar 76, and there is nail anvil pulling-on piece 77 at the middle part, and there is screw rod 78 rear end.The front end of nail anvil extension bar 73 is connected with nail anvil 11, and there is the inserted link 75 that has circumferential recess 74 rear end of nail anvil extension bar 73.The back is connected (seeing Figure 11) with the front end of screw rod 78 in the slit of rear end insertion screw rod 78 front ends of nail anvil pulling-on piece 77, and the back is connected with locking bar 76 in the slit of front end insertion locking bar 76 rear ends of nail anvil pulling-on piece 77.On the nail anvil pulling-on piece 77 in the slit of insertion locking bar 76 rear ends claw 79 is arranged.The front end of locking bar 76 has the jack 80 of the inserted link 75 that can insert on the nail anvil extension bar 73.Claw 79 on the nail anvil pulling-on piece 77 stretches in the jack 80 of locking bar 76.After in the jack 80 of the 75 insertion locking bars 76 of the inserted link on the nail anvil extension bar 73, the claw 79 on the nail anvil pulling-on piece 77 buckles in the groove 74 of inserted link 75, and nail anvil 11 is linked together together with locking bar 76 lockings of nail anvil extension bar 73 with anvil pull rod 12.When the inserted link on the nail anvil extension bar 73 75 was extracted in the jack 80 of locking bar 76, inserted link 75 opened the claw 79 on the nail anvil pulling-on piece 77, and nail anvil 11 is broken away from together with the locking bar 76 of nail anvil extension bar 73 with anvil pull rod 12.
As Figure 11, Figure 12 and shown in Figure 13, firing handle 14 connects with anastomat body 7 pivots.Percussion spring 81 makes firing handle 14 trend towards open state all the time.Lock 15 connects with anastomat body 7 pivots, and operating side 84 and control end 85 are arranged on the lock 15.Control end 85 is used to prop up or breaks away from firing handle 14, and operating side 84 is used to operate the rotation of lock 15.Relief spring 86 makes the control end 85 of lock 15 trend towards propping up the state of firing handle 14 to prevent that firing handle 14 from being pulled the trigger by mistake all the time.Transfer strip 87 can be driven in anastomat body 7 by anvil pull rod 12 and move backward.Switching spring 88 makes transfer strip 87 trend towards moving towards the place ahead of anastomat body 7 all the time.The rotation of transfer strip 87 control locks 15.Have sour jujube tooth 82 and 83 respectively on firing handle 14 and the lock 15.When departing from the grip thickness that can carry out the operation that coincide between nail anvil 11 and the nail tube 10, switch spring 88 and make transfer strip 87 block lock 15 all the time, opened after this moment, lock 15 can not be rotated.When nail anvil 11 moved to the position of the grip thickness that can carry out the operation that coincide, anvil pull rod 12 drove transfer strip 87 and unclamps lock 15, makes lock 15 allow to be opened.When coincideing operation, rotating lock 15 makes control end 85 break away from firing handle 14, unclamp lock 15 again after the firing handle 14 clamped rotations, sour jujube tooth 82 on the firing handle 14 and the sour jujube tooth 83 on the lock 15 are meshing with each other under the effect of percussion spring 81 and relief spring 86, make the firing handle 14 can only clamped rotation and can not open round about, make the surgeon firmly can relax also at need and can not influence operation clamping firing handle 14.When finishing identical operation, after sour jujube tooth 82 on the firing handle 14 of clamped rotation shifts out sour jujube tooth 83 on the lock 15, bullet is to firing handle 14 under the effect of relief spring 86 for lock 15, and the position of strike note that sends and lock 15 is moved and reminded the surgeon to coincide to finish.At this moment, rotate lock 15 lock 15 and firing handle 14 are broken away from, percussion spring 81 makes firing handle 14 be returned to open state.Unclamping lock 15 then makes control end 85 be returned to the position of propping up firing handle 14 under the effect of relief spring 86.
As Figure 11, Figure 12 and shown in Figure 13, the cue mark 90 that anvil pull rod 12 drives on the nail anvil position indicator pointer 89 moves forward and backward below the indication window 13 that is positioned at anastomat body 7 body portions.91 pairs on scale on the indication window 13 do not allow to carry out the distance of coincideing between nail anvil 11 and the nail tube 10 of operation and position along anvil pull rod 12 axially by marking straightway 92 at 1: 1, the axial angled direction that 91 pairs on the scale on the indication window 13 allows to carry out the distance of coincideing between nail anvils 11 and the nail tins 10 of operation and edge, position and anvil pull rod 12 marks oblique line section 93 (seeing Figure 13).Because when the cue mark on the nail anvil position indicator pointer 89 90 during with the moving axially of anvil pull rod 12, the oblique line section 93 that scale 91 on the indication window 13 marks along the axial angled direction with anvil pull rod 12 is longer than the straightway that axially marks 92 along anvil pull rod 12, therefore has amplification.When make by adjusting knob 16 anvil pull rod 12 in anastomat body 7, move forward and backward with regulate between nail anvil 11 and the nail tins 10 apart from the time, the cue mark 90 that anvil pull rod 12 drives on the nail anvil position indicator pointer 89 moves forward and backward below the indication window 13 that is positioned at anastomat body 7 body portions, from the scale 91 indication nail anvils 11 of indication window 13 and various distances and the position between the nail tube 10, make the particular location that the surgeon can clearer understanding nail anvil 11, be convenient to the correct corresponding operation of selecting.
According to above-mentioned detailed introduction as can be known, Digective canal tubular anastomat of the present invention has following characteristics: the surgeon is when using Digective canal tubular anastomat of the present invention, the digestive organ 94 and 95 that the Digective canal tubular anastomat insertion is to be coincide, the spacing of rotating adjusting knob 16, selecting suitable nail anvil 11 and following closely tube 10, the tissue 94 and 95 of will waiting to coincide is tightened respectively after on the anvil pull rod 12, and backward rotation adjusting knob 16 makes the tissue 94 and 95 of waiting to coincide be clamped between nail anvil 11 and the nail tube 10 grip thickness up to the operation that is fit to coincide again.When regulate by adjusting knob 16 between nail anvils 11 and the nail tins 10 apart from the time, cue mark 90 on the nail anvil position indicator pointer 89 moves forward and backward below the indication window 13 that is positioned at anastomat body 7 body portions, from the scale 91 indication nail anvils 11 of indication window 13 and various distances and the position between the nail tube 10.The nail anvil position indication that 91 pairs on the scale of indication window 13 is fit to the grip thickness of identical operation also has amplification.Scale 91 on the indication window 13 of Digective canal tubular anastomat of the present invention has the indication of more detailed nail anvil position, thereby makes the particular location that the surgeon can clearer understanding nail anvil 11, is convenient to the correct corresponding operation of selecting.When Digective canal tubular anastomat of the present invention only reached the scope of the grip thickness that can carry out the operation that coincide between nail anvil 11 and nail tube 10, lock 15 just allowed firing handle 14 to be pulled the trigger; If when the distance between nail anvil 11 and the nail tube 10 departed from the scope of the grip thickness that can carry out the operation that coincide, lock 15 promptly stoped firing handle 14 to be pulled the trigger, thereby the accident that can avoid firing handle 14 to be pulled the trigger is carried out to guarantee anastomosis operation safety by mistake.In case the surgeon determines that each step operation is correct, can open lock 15 successively, clamps firing handle 14, finish the operation that coincide.Be installed in cutter anvil 22 endless knife 23 positions corresponding end face 24 undulates 25 interior in the nail anvil 11 with being installed in nail tube 10.When endless knife 23 cutter anvils 22, the crest of first incision knife anvil 22 waveform end faces 24.Because crest only accounts for the sub-fraction of whole end face 24, it is less therefore to cut resistance.After the crest of cutter anvil 22 waveform end faces 24 was cut open, cutter anvil 22 waveform end faces 24 were torn by the limit slit edge under the effect of endless knife 23 cuttings, and the cutting resistance that is subjected to is less.Because the most of power consumption when firing handle 14 is carried out tissue and coincide by anastomosis staple 19 in the ejector pin bar 65 push nail tubes 10 and endless knife 23 is on endless knife 23 cutter anvils 22, the percussion power in the time of therefore can obviously reducing the surgeon and clamp firing handle 14 by the resistance that reduces endless knife 23 cutter anvils 22.Lock 15 is except having safety effect, the auditory tone cues effect that also having coincide finishes and clamp anti-in firing handle 14 processes and open effect, thereby the surgeon firmly can be relaxed also at need in clamping firing handle 14 can not influence operation, can also in time understand the time that the operation that coincide has been finished, carry out next step operation relievedly.After finishing the tissue that coincide, rotation lock 15 unclamps firing handle 14, and ejector pin seat 37 and endless knife 23 withdrawal nail tube 10 automatically are interior to prevent to damage surrounding tissue.Rotating adjusting knob 16 this moment unclamps by behind the tissue 94 and 95 that coincide nail anvil 11, because the nail anvil 11 after inclination is rotated is perpendicular to the sectional area of the nail tube 10 axis directions sectional area less than anastomotic stoma 96, thereby make the surgeon after finishing the operation that coincide, can take out Digective canal tubular anastomat easily.Adopt buckle structure in being connected between Digective canal tubular anastomat of the present invention being connected between plastic part and plastic part, plastic part and the metal parts as far as possible, it is stressed very little that plastic part connects the back at buckle, can guarantee the assembly precision of plastic part inside, be more suitable for the operating characteristic of plastic part, and assembling is also very convenient.Have at nail anvil sheet 18 on the back side 21 of anastomosis staple grooving 20 and use the plastics coated.Nail-anvil cap 17 is made of plastics, and makes the face 21 of nail anvil sheet 18 usefulness plastics coateds can adopt Ultrasonic Plastic Welding method and nail-anvil cap 17 to weld together.Reach the metalworking part and adopt as far as possible that injection-moulded plastic part or punching parts replace, injection-moulded plastic part adopts the displaced effect of punching parts as far as possible, thereby reduce process time, reduce production costs.
Compare with existing Digective canal tubular anastomat, it is more convenient, more accurate, more laborsaving, safer when Digective canal tubular anastomat of the present invention uses, more convenient during assembling, production cost is lower, suits to produce on a large scale on streamline the disposable orthochoanitic or the curved neck formula Digective canal tubular anastomat of high quality and low cost especially.
So as can be seen, the above-mentioned target of stating comprises by front those shown targets of explanation having been reached effectively.Described here only is the typical best form of implementation of the present patent application, can do some to said structure and change also without prejudice to the spirit and scope of the present invention.The present invention does not limit to or is placed restrictions on the detail of being stated in here, and state in should qualification as claim to keep affiliated field secondary technology personnel be conspicuous any improvement or remodeling.
Claims (18)
1, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: the left and right anastomat body that above-mentioned anastomat body is made of plastics closes up and forms; After the parts that are positioned at above-mentioned anastomat body inside are installed in the anastomat body, under the effect of buckle structure, lock when above-mentioned left and right anastomat body closes up and link together, flexible fastener and fixing fastener in the above-mentioned buckle structure, above-mentioned Elastic buckle spare withholds the said fixing fastener through strain, make above-mentioned Elastic buckle spare and fixedly fastener locking link together.
2, Digective canal tubular anastomat according to claim 1 is characterized in that, the Elastic buckle spare in the above-mentioned buckle structure and fixedly fastener be separately fixed on one's body the above-mentioned left and right anastomat; When above-mentioned left and right anastomat body closes up, Elastic buckle spare in the above-mentioned left and right anastomat above-mentioned buckle structure on one's body withholds fixedly fastener through strain, locks when above-mentioned left and right anastomat body is closed up to link together under the effect of above-mentioned buckle structure.
3, Digective canal tubular anastomat according to claim 1 is characterized in that, the fixedly fastener in the above-mentioned buckle structure is fixed on one of them of above-mentioned left and right anastomat body; When above-mentioned left and right anastomat body closes up, Elastic buckle spare in the above-mentioned buckle structure is never with after inserting in the above-mentioned anastomat body of said fixing fastener, one end of above-mentioned Elastic buckle spare be pressed in be not with the said fixing fastener above-mentioned anastomat on one's body, on the fixedly fastener of the other end in strain withholds the above-mentioned anastomat body that has the said fixing fastener, under the effect of above-mentioned buckle structure, lock when above-mentioned left and right anastomat body is closed up and link together.
4, Digective canal tubular anastomat according to claim 1 is characterized in that, flexible fastener in the above-mentioned buckle structure, fixedly fastener and scotch; When above-mentioned left and right anastomat body closes up, Elastic buckle spare in the above-mentioned buckle structure after strain withholds fixedly fastener, is inserted above-mentioned scotch above-mentioned Elastic buckle spare again and withholds in the space that forms behind the fixing fastener to stop above-mentioned Elastic buckle spare to be thrown off from the said fixing fastener.
5, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: the front end of the above-mentioned ejector pin bar of being made by sheet metal is stamped altogether and is bent into four push rods, and above-mentioned four push rods stretch in the nail tube from above-mentioned nail tube rear end and are connected with above-mentioned ejector pin seat.
6, Digective canal tubular anastomat according to claim 5 is characterized in that, the front end of above-mentioned ejector pin bar is bent into four dihedral push rods of being with fillets by the sheet metal punching press, and above-mentioned four push rods stretch in the nail tube from above-mentioned nail tube rear end and are connected with above-mentioned ejector pin seat.
7, Digective canal tubular anastomat according to claim 5 is characterized in that, after the push rod on the above-mentioned ejector pin bar was inserted on the above-mentioned ejector pin seat, above-mentioned push rod and above-mentioned ejector pin seat were locked under the effect of buckle structure and linked together; Flexible fastener and fixing fastener in the above-mentioned buckle structure, above-mentioned Elastic buckle spare withholds the said fixing fastener through strain, make above-mentioned Elastic buckle spare and fixedly fastener locking link together.
8, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: the left and right anastomat body that above-mentioned anastomat body is made of plastics closes up and forms, above-mentioned anastomat body and above-mentioned nail tube in buckle structure non-return flexure strip and the effect of shrinkage pool under lock and link together, non-return flexure strip in locking groove and the above-mentioned buckle structure is arranged on the outer wall of above-mentioned anastomat body front end, the shrinkage pool in rib and the above-mentioned buckle structure is arranged on the above-mentioned nail barrel; When the front end that closes up the above-mentioned anastomat body that forms by above-mentioned left and right anastomat body inserts in the above-mentioned nail tube, the rib of above-mentioned nail tube inwall moves along the locking groove on the above-mentioned anastomat body outer wall, non-return flexure strip on above-mentioned anastomat body outer wall springs in the shrinkage pool on the above-mentioned nail barrel, above-mentioned nail tube is linked together with the locking of above-mentioned anastomat body under the effect of above-mentioned buckle structure, and the rib of above-mentioned nail tube inwall inserts in the locking groove on the above-mentioned anastomat body outer wall and rotates on the outer wall of anastomat body to place restrictions on the nail tube simultaneously.
9, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: above-mentioned ejector pin seat and endless knife in buckle structure the side direction claw and the effect of catching groove under lock and link together, the rear end of above-mentioned endless knife periphery has the side direction claw in the above-mentioned buckle structure, has the catching groove in the above-mentioned buckle structure in the above-mentioned ejector pin seat on week; After in above-mentioned endless knife is inserted above-mentioned ejector pin seat, the side direction claw of above-mentioned endless knife rear end springs in the catching groove of above-mentioned ejector pin seat, and above-mentioned endless knife is linked together with above-mentioned ejector pin seat locking under the effect of above-mentioned buckle structure.
10, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: nail tube shell and nail bin are arranged in the above-mentioned nail tube, above-mentioned nail tube shell and above-mentioned anastomat body link together, above-mentioned anastomosis staple is installed in the above-mentioned nail bin, above-mentioned nail tube shell and nail bin in buckle structure claw and the effect of catching groove under lock and link together, the front end in week has the claw in the above-mentioned buckle structure of annular spread in the above-mentioned nail tube shell, and the corresponding position, claw position in week has the catching groove in the above-mentioned buckle structure of annular spread in above-mentioned nail bin periphery and the nail tube shell; After above-mentioned nail bin inserted on the above-mentioned nail tube shell, the claw in week buckled in the catching groove of above-mentioned nail bin periphery in the above-mentioned nail tube shell, and above-mentioned nail bin is linked together with above-mentioned nail tube shell locking under the effect of above-mentioned buckle structure.
11, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: above-mentioned anvil pull rod and nail anvil in buckle structure claw and the effect of inserted link under lock and link together, the front end of above-mentioned anvil pull rod has above-mentioned nail anvil extension bar and locking bar, there is the nail anvil pulling-on piece at the middle part, there is screw rod the rear end, the front end of above-mentioned nail anvil extension bar is connected with above-mentioned nail anvil, there is the inserted link that has circumferential recess in the above-mentioned buckle structure rear end of above-mentioned nail anvil extension bar, the rear end of above-mentioned nail anvil pulling-on piece inserts that the back is connected with the front end of screw rod in the slit of above-mentioned screw front end, the front end of above-mentioned nail anvil pulling-on piece inserts that the back is connected with locking bar in the slit of above-mentioned locking bar rear end, insert the claw that has on the above-mentioned nail anvil pulling-on piece in the slit of above-mentioned locking bar rear end in the above-mentioned buckle structure, the front end of above-mentioned locking bar has the jack that can insert the inserted link on the above-mentioned nail anvil extension bar, and the claw on the above-mentioned nail anvil pulling-on piece stretches in the jack of above-mentioned locking bar; After the inserted link on the above-mentioned nail anvil extension bar inserts in the jack of above-mentioned locking bar, claw on the above-mentioned nail anvil pulling-on piece buckles in the groove of above-mentioned inserted link, make above-mentioned nail anvil together with above-mentioned nail anvil extension bar in above-mentioned buckle structure claw and the effect of inserted link under link together with the locking bar locking of above-mentioned anvil pull rod; When the inserted link on the above-mentioned nail anvil extension bar was extracted in the jack of above-mentioned locking bar, above-mentioned inserted link opened the claw on the above-mentioned nail anvil pulling-on piece, and above-mentioned nail anvil is broken away from together with the locking bar of above-mentioned nail anvil extension bar and above-mentioned anvil pull rod.
12, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: above-mentioned firing handle is arranged in the above-mentioned insurance institution, the percussion spring, lock and relief spring, above-mentioned firing handle connects with above-mentioned anastomat body pivot, above-mentioned percussion spring makes above-mentioned firing handle trend towards open state all the time, above-mentioned lock connects with above-mentioned anastomat body pivot, operating side and control end are arranged on the above-mentioned lock, above-mentioned control end is used to prop up or breaks away from above-mentioned firing handle, the aforesaid operations end is used to operate the rotation of above-mentioned lock, above-mentioned relief spring makes the control end of above-mentioned lock trend towards propping up the state of above-mentioned firing handle all the time, has the sour jujube tooth on above-mentioned firing handle and the lock respectively; When coincideing operation, rotating above-mentioned lock makes the control end on the above-mentioned lock break away from above-mentioned firing handle, unclamp above-mentioned lock again after the clamped rotation of above-mentioned firing handle, sour jujube tooth and the sour jujube tooth on the above-mentioned lock on the above-mentioned firing handle are meshing with each other under the effect of above-mentioned percussion spring and relief spring, make the above-mentioned firing handle can only clamped rotation and can not open round about; When finishing identical operation, rotating above-mentioned lock breaks away from the sour jujube tooth of above-mentioned lock and the sour jujube tooth of above-mentioned firing handle, above-mentioned percussion spring makes above-mentioned firing handle be returned to open state, at this moment, unclamping above-mentioned lock makes the control end of above-mentioned lock be returned to the position of propping up above-mentioned firing handle under the effect of above-mentioned relief spring.
13, Digective canal tubular anastomat according to claim 12, it is characterized in that, when finishing identical operation, after sour jujube tooth on the above-mentioned firing handle of clamped rotation shifts out sour jujube tooth on the above-mentioned lock, above-mentioned lock under the effect of above-mentioned relief spring bullet to above-mentioned firing handle, at this moment, rotating above-mentioned lock again breaks away from above-mentioned lock and above-mentioned firing handle, above-mentioned percussion spring makes above-mentioned firing handle be returned to open state, unclamps above-mentioned lock then and makes the control end of above-mentioned lock be returned to the position of propping up above-mentioned firing handle under the effect of above-mentioned relief spring.
14, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: be installed in the above-mentioned cutter anvil endless knife position corresponding end face undulate interior in the above-mentioned nail anvil with being installed in above-mentioned nail tube.
15, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: nail-anvil cap and nail anvil sheet are arranged on the above-mentioned nail anvil, above-mentioned nail anvil sheet is made of metal, on the end face of above-mentioned nail anvil sheet, be arranged with above-mentioned nail tube in the corresponding anastomosis staple grooving in anastomosis staple position, have at above-mentioned nail anvil sheet on the back side of anastomosis staple grooving and use the plastics coated, above-mentioned nail-anvil cap is made of plastics, and makes above-mentioned nail anvil sheet can adopt Ultrasonic Plastic Welding method and above-mentioned nail-anvil cap to weld together with the face of plastics coated.
16, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife, make above-mentioned nail anvil finish coincide before and above-mentioned anvil pull rod be rigidly connected, 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 nail anvil, anvil pull rod, endless knife, cutter anvil and inclination spring are formed, above-mentioned nail anvil connects with the anvil pull rod pivot, the lateral surface of above-mentioned cutter anvil and the medial surface of above-mentioned nail anvil link together, have the scotch that radially extends on the medial surface of above-mentioned cutter anvil, the scotch of above-mentioned cutter anvil props up above-mentioned anvil pull rod can not rotate above-mentioned nail anvil around the anvil pull rod inclination, the medial surface of above-mentioned endless knife is processed to coarse surface near the blade place, and an end of above-mentioned inclination spring acts on the above-mentioned anvil pull rod, the other end acts on the above-mentioned nail anvil; When coincideing operation, above-mentioned endless knife is cut the medial surface of the above-mentioned cutter anvil of connection and the end face between the lateral surface, and the medial surface part of above-mentioned cutter anvil is partly broken away from lateral surface; When finishing identical operation, above-mentioned anvil pull rod drives above-mentioned nail anvil and leaves above-mentioned nail tube, the medial surface that rough surface on the medial surface of above-mentioned endless knife drives above-mentioned cutter anvil partly breaks away from above-mentioned nail anvil, scotch on the above-mentioned cutter anvil medial surface no longer props up above-mentioned anvil pull rod, and above-mentioned nail anvil is rotated around above-mentioned anvil pull rod inclination under the effect of above-mentioned inclination spring.
17, Digective canal tubular anastomat according to claim 16, it is characterized in that, above-mentioned nail anvil connects with the anvil pull rod pivot, have the arresting lever that extends forward on the side of above-mentioned anvil pull rod front end, the arresting lever of above-mentioned anvil pull rod leans against on the side of above-mentioned nail anvil and anvil pull rod pivot connection place nail anvil is rotated around the anvil pull rod inclination towards a side only, the lateral surface of above-mentioned cutter anvil and the medial surface of above-mentioned nail anvil link together, have the scotch that radially extends on the medial surface of above-mentioned cutter anvil, the arresting lever of above-mentioned anvil pull rod is rotating can not to rotate above-mentioned nail anvil around the anvil pull rod inclination one side the scotch of above-mentioned cutter anvil props up; When coincideing operation, above-mentioned endless knife is cut the medial surface of the above-mentioned cutter anvil of connection and the end face between the lateral surface, and the medial surface part of above-mentioned cutter anvil is partly broken away from lateral surface; When finishing identical operation, above-mentioned anvil pull rod drives above-mentioned nail anvil and leaves above-mentioned nail tube, the medial surface that rough surface on the medial surface of above-mentioned endless knife drives above-mentioned cutter anvil partly breaks away from above-mentioned nail anvil, scotch on the above-mentioned cutter anvil medial surface no longer props up the arresting lever of above-mentioned anvil pull rod, and above-mentioned nail anvil is rotated around above-mentioned anvil pull rod inclination under the effect of above-mentioned inclination spring.
18, a kind of Digective canal tubular anastomat, 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 seat and endless knife in the above-mentioned nail tube, be installed in above-mentioned nail tube rounded ends and along circumferential array, can be by the anastomosis staple of above-mentioned ejector pin seat release, 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 seat, 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, indication nail anvil position and/or the indicating mechanism of coincideing and finishing, by above-mentioned adjusting knob 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, promoting above-mentioned ejector pin bar by above-mentioned firing handle moves in above-mentioned anastomat body to promote the above-mentioned ejector pin seat in the above-mentioned nail tube, the firing lock of anastomosis staple and endless knife is installed in other auxiliary spare part of above-mentioned anastomat body inside;
It is characterized in that: above-mentioned indicating mechanism is by above-mentioned adjusting knob, anvil pull rod, nail anvil position indicator pointer and indication window are formed, the cue mark that above-mentioned anvil pull rod drives on the above-mentioned nail anvil position indicator pointer moves forward and backward below the above-mentioned indication window that is positioned at above-mentioned anastomat body portion, scale on the above-mentioned indication window axially marked straightway by 1: 1 to the distance and the position that do not allow to carry out the identical above-mentioned nail anvil of operating and follow closely between the tube along anvil pull rod, and the scale on the above-mentioned indication window marks the oblique line section to allowing distance and edge, position between identical above-mentioned nail anvil of operating of execution and the nail tube with the axial angled direction of anvil pull rod; When make by above-mentioned adjusting knob above-mentioned anvil pull rod in above-mentioned anastomat body, move forward and backward with regulate between above-mentioned nail anvil and the nail tube apart from the time, the cue mark that above-mentioned anvil pull rod drives on the above-mentioned nail anvil position indicator pointer moves forward and backward below the above-mentioned indication window that is positioned at above-mentioned anastomat body portion, from various distances and the position between the above-mentioned nail anvil of scale indication of indication window and the nail tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100246055A CN100443059C (en) | 2005-03-24 | 2005-03-24 | Tube type anastomat for alimentary canal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100246055A CN100443059C (en) | 2005-03-24 | 2005-03-24 | Tube type anastomat for alimentary canal |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101671278A Division CN100448410C (en) | 2005-03-24 | 2005-03-24 | Tubular digestive tract anastomat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1695563A true CN1695563A (en) | 2005-11-16 |
| CN100443059C CN100443059C (en) | 2008-12-17 |
Family
ID=35348558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100246055A Expired - Fee Related CN100443059C (en) | 2005-03-24 | 2005-03-24 | Tube type anastomat for alimentary canal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100443059C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011050658A1 (en) * | 2009-10-26 | 2011-05-05 | 北京中法派尔特医疗设备有限公司 | Line stapler |
| CN102151157A (en) * | 2011-03-14 | 2011-08-17 | 常州市三联星海医疗器械制造有限公司 | Accurate closed space indicating device for anastomat and stitching instrument and indication method thereof |
| CN102551834A (en) * | 2012-02-22 | 2012-07-11 | 吴伟敏 | Digestive tract anastomat |
| CN102551817A (en) * | 2012-01-16 | 2012-07-11 | 江苏海泽医疗科技发展有限公司 | Medical surgical soft tissue dilator |
| CN103462664A (en) * | 2013-09-29 | 2013-12-25 | 无锡市神康医疗器械设备有限公司 | Handle device for disposable guide type anorectal hemorrhoid anastomat |
| CN104116538A (en) * | 2014-07-16 | 2014-10-29 | 北京中法派尔特医疗设备有限公司 | Anastomat with sound prompting function |
| CN104257409A (en) * | 2014-10-09 | 2015-01-07 | 飞依诺科技(苏州)有限公司 | Stapling device |
| CN104398280A (en) * | 2014-11-13 | 2015-03-11 | 江苏博朗森思医疗器械有限公司 | Tubular anastomat with non-return function |
| CN104853684A (en) * | 2012-12-17 | 2015-08-19 | 伊西康内外科公司 | Motor driven rotary input circular stapler with modular end effector |
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| GR920100358A (en) * | 1991-08-23 | 1993-06-07 | Ethicon Inc | Surgical anastomosis stapling instrument. |
| US5350104A (en) * | 1991-08-23 | 1994-09-27 | Ethicon, Inc. | Sealing means for endoscopic surgical anastomosis stapling instrument |
| US5685474A (en) * | 1994-10-04 | 1997-11-11 | United States Surgical Corporation | Tactile indicator for surgical instrument |
| CN1106827C (en) * | 1998-10-27 | 2003-04-30 | 张祖仁 | Surgical tubular anastomosing device |
| CN2383476Y (en) * | 1999-02-10 | 2000-06-21 | 张祖仁 | Surgical tubular anastomat |
| CN2461494Y (en) * | 2000-07-06 | 2001-11-28 | 张祖仁 | Tubular anastomat for surgery |
| CN2448296Y (en) * | 2000-11-10 | 2001-09-19 | 马剑文 | Digestive vessel shape anastomat stoma |
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