Disposable hysteroscope internal cutting staplerTechnical field
The utility model relates to a kind of disposable hysteroscope internal cutting staplers, belong to medical instrument, especially suitable forApply the disposable intracavitary Endo-GIA of line row on intraluminal tissue.
Background technology
Traditional surgical operation includes cutting, separation, ligation, hemostasis, suture, be finally reached excision to organ lesion andThe reconstruction of organ.Mechanical staplers can replace traditional operation, and the excision of diseased organ is realized by following three basic operationsAnd reconstruction：1, separate：Organ is sutured away from lesion certain distance using linear staplers, including parenchymatous organ and chamberRoad organ, blood vessel etc., then detachment cuts off diseased organ, or disposably completes suture and detachment using linear incision stitching unstrument.2, the tissue apposition sutured will be needed, with linear staplers stapling, such as the longitudinal sectional transverse joint at pylorus, completes pylorus formingArt.3, with anastomosis ring applicator, very convenient cavity organ such as oesophagus, stomach, small intestine, colon can be subjected to end to end anastomosis, endSide-to-side anastomosis.Stomach and intestine side to side anastomosis can be carried out using stapler.Such as nodus hemorrhoidalis end-to-end intestinal anastomosis, gastric and esophageal end-to-side anastomosisArt and stomach jejunum side-to-side anastomosis etc..
In abdominal cavity formula and/or it is interior peep in surgical procedure, surgical procedure is by small notch with patient or is inserted into the narrow of woundNarrow casing is carried out.During traditional or open, doctor directly contacts operative site.Since the patient of its reduction createsWound shortens patient's convalescence and significantly reduces overall cost, and formula operation opposing open operation in abdominal cavity has advantage.Within coordinatingThe specific requirements of surfing style and abdominal cavity formula, endoscopic robotic suturing device, which has been developed that, to be enabled the clinician to relatively easily contact operative site.Typically, these suture instruments include be supported on approach robotic suturing device end be hinged to tool component.The tool component canIt is enabled the surgeon to manipulate operation device in limited space by selectively manipulation.These instruments to it is interior peep operation provide it is aobviousThe medical benefit of work.Nevertheless, it is desirable to improve to some extent in cost reduction and manufacture complexity.
At present in hysteroscope internal cutting stapler, it is required to both hands operation, doctor operates not enough smooth, and inside isPlastic part, insufficient strength are likely to result in the failure of operation.
Therefore it there is still a need for being further improved it to reduce the time needed for surgical procedure, and makes it easier to close to tissuePosition, intensity is stronger, the stapler of jaw suction bigger.
Invention content
The utility model aim is that place provides a kind of disposable hysteroscope internal cutting stapler against the above deficiency, by connectingLever fixing apparatus clamps stapling apparatus, clamps anastomotic component transfer, push broach device, only knife safety device, retaining insurance dressIt sets, fixed handle, reseting handle, flexible handle component composition.Disposable hysteroscope internal cutting stapler reasonable design, structure are closedReason, it is easy to use.Drive mechanism all using metalwork, enhances the transmission intensity of instrument.Clamping anastomotic component can arbitrarily adjustWhole angle can be easily found the position for being suitble to operation during surgery.By cutter and clamp ring double locking, clamped being closedMouthful when, suction bigger, can will tissue folder it is tighter, reduce jaw it is not tight enough caused by operation risk.Disposable hysteroscope internal cuttingStapler can keep operation more coherent with one-handed performance, and doctor can vacate hand and take other instruments, reduce operating time, dropLow operation risk reduces pain to patient.
Disposable hysteroscope internal cutting stapler is realized using following technical scheme：
Disposable hysteroscope internal cutting stapler includes connecting lever fixing apparatus, clamping stapling apparatus, clamping anastomotic component to turnTo device, push broach device, only knife safety device, retaining safety device, fixed handle, reseting handle, flexible handle component.
It includes connecting rod fixed block and connecting rod to connect lever fixing apparatus.Connecting rod top, which is equipped with, turns to drag hook sliding groove,Rear end is equipped with swivel head mounting groove, and is rotated up and down block loose slot, and middle part is equipped with through-hole and is used to install band knife bar and band blade,Lower part is equipped with band blade briquetting mounting groove, and front upper is equipped with connector and installs card slot, and connecting rod rear portion is fixed by the connecting rodBlock is fixedly mounted on fixed handle.
Stapling apparatus is clamped to include nail bin, push jack, beveling, nail bin cover plate, protection cap, resist-nailed seat lid, staple cartridge tray, support nailSeat, connecting tube are vertically connected with plate, clamp ring, casing, connector, percussion block, percussion block upper cover, rack drives block, movable handHandle.It is provided with nail slot in nail bin, anastomosis staple is housed in nail slot, push jack is housed, push jack front end is equipped with beveling, nail bin bottom under anastomosis staplePortion is equipped with nail bin cover plate, and anti-thrust plate and beveling drop out.Protection cap is mounted on above nail bin, and protection anastomosis staple is not fallen off.To nailFlap is welded on above resist-nailed seat, and resist-nailed seat is equipped with staple formation slot, and resist-nailed seat rear end is provided with staple cartridge tray mounting hole, is followed closelyStorehouse seat rear portion is equipped with installation protrusion, by installing protrusion, is mounted in the staple cartridge tray mounting hole of resist-nailed seat.Nail bin is mounted on nail binIn seat.Resist-nailed seat rear end is equipped with resist-nailed seat pin mounting hole, and by resist-nailed seat pin, resist-nailed seat is mounted on steering knuckle, is turned toConnector rear end is provided with connector mounting hole, and connector front end is equipped with installation protrusion, by connector mounting hole, by connector withSteering knuckle is installed together.It connects back of head and the front that card slot is mounted on connecting rod is installed by connecting rod.Casing is sleeved onOutside connecting rod, casing front is sleeved on resist-nailed seat and staple cartridge tray rear portion, is fixedly connected by being vertically connected with plate, and casing rear portion is setThere is swivel head and be rotated up and down block mounting groove, casing rear end is equipped with percussion block mounting groove, and percussion block is sleeved on casing, fires blockIn percussion block sliding groove in fixed handle, block upper cover is fired, is mounted on percussion block.Nail bin, supports nail at nail bin cover plateIt is both provided with cutting cutter groove in the middle part of seat and staple cartridge tray.Flexible handle is mounted on fixed handle, by band motion block pin, by rack bandMotion block is mounted on flexible handle.
Anastomotic component transfer is clamped to include steering knuckle, turn to pin block, assisted diversion item, rotating axle pin spring, revolveRotary head spring turns to drag hook, swivel head, is rotated up and down block, rotating handle, rotating handle cover board, rotary handle spring.Steering connectsHead front is fixed on resist-nailed seat, and rear portion is fixed on connector, and steering knuckle rear portion is provided with sector gear.TurnIt is mounted in the middle part of connector to pin block, turns to pin block front end and pitched equipped with dentation, the sector gear phase with the setting of steering knuckle rear portionCooperation, positions when for turning to, and for rotating axle pin spring pocket mounted in turning on pin block, steering pin block rear end, which is equipped with, turns to drag hook installationHole.Two assisted diversion items are separately mounted to connector both sides, swivel head spring is set on assisted diversion item.Before turning to drag hookEnd is provided with drag hook, and drag hook is hooked in the steering drag hook mounting hole for turning to pin block rear end.It turns to drag hook and is mounted on connecting rod topSteering drag hook sliding groove in, turn to drag hook rear end and be provided with kidney slot.Turn to kidney slot and upper backspin of the drag hook by rear endSwitch block connects, and is rotated up and down block being rotated up and down in block loose slot mounted on connecting rod, is rotated up and down on block and is provided with rotation handHandle installation protrusion, rotating handle are sleeved in the rotating handle installation protrusion for being rotated up and down block.Rotating handle rear portion is equipped with petalThe drag hook of shape.Rotating handle cover board is fitted in rotating handle.Rotating handle front end is equipped with swivel head.Rotating handle bulletSpring is mounted in rotating handle, and front end is played reset role against block, rear end is rotated up and down against fixed handle.
Push broach device includes cutter, band blade, band blade briquetting, band knife bar, rack, rack drives block, flexible handleWith band motion block pin.Cutter are welded on band blade front end, and band blade is mounted on the middle part of connecting rod, and band blade briquetting is equipped with bandBlade slides slot, band blade briquetting are mounted on connecting rod in the following, restriction band blade position, band blade is in band blade briquetting sliding grooveInterior sliding.Band blade rear end is equipped with hook, and band knife bar front end is equipped with hole, and band blade rear end is hooked in the hole with knife bar front endIt is interior, it is mounted in the through-hole in the middle part of connecting rod with knife bar, band knife bar rear end is equipped with rack connector.Rack is mounted on fixed handleRack sliding groove in, rack front end is connect with the rack connector with knife bar rear end, rack rear end be equipped with release link mounting hole.Flexible handle is mounted on fixed handle, and rack drives block is mounted on by band motion block pin on flexible handle.
Only knife safety device includes percussion block, percussion block upper cover, rack, rack safety block, rack limited block drive link, protectsDangerous spring, release link and reseting handle.It fires in the percussion block sliding groove that block is mounted in fixed handle, percussion block upper cover installationOn percussion block.It fires block front end and casing is housed.Rack is mounted between percussion block and percussion block upper cover.Rack top is equipped with toothItem insures card slot, and rear end is equipped with release link mounting hole, and release link is mounted in the release link mounting hole of rack rear end, reseting handleOn be provided with release link mounting groove, reseting handle is mounted on by release link on fixed handle.Block rear end is fired to limit equipped with rackPosition block drive link installs card slot, and the rack limited block drive link that rack limited block drive link is mounted on percussion block rear end installs card slotIt is interior.It is provided with inverted trapezoidal slot in the middle part of rack limited block drive link, inverted trapezoidal slot, rack are provided in the middle part of rack limited block drive linkSafety block is located in the inverted trapezoidal slot being equipped in the middle part of rack limited block drive link, and rack safety block is sleeved on the transmission of rack limited blockOn bar, rack safety block top is equipped with relief spring.
The protrusion of rack safety block lower end is stuck in the insurance card slot of the rack on rack, is prevented rack from firing forward, is playedThe only effect of knife insurance.
Retaining safety device includes percussion block, percussion block upper cover, rack, percussion block limiting plate, limit flat spring.Fire blockIn percussion block sliding groove in fixed handle, block upper cover is fired, is mounted on percussion block.Block front end is fired equipped with setPipe.Rack is mounted between percussion block and percussion block upper cover.Fire the percussion block limiting plate that block limiting plate is mounted on fixed handleIn mounting groove, limit flat spring is mounted in the spring mounting hole of percussion block limiting plate lower part.It fires block upper cover lower part and is equipped with threeAngular limit protrusion, percussion block limiting plate lower part are equipped with positive stop lug boss, and percussion block limiting plate top side is equipped with sliding boss.Rack is equipped with percussion block limiting plate sliding groove, fires percussion block limit of the sliding boss of block limiting plate top side on rackSliding in the plate sliding groove of position.
Flexible handle component includes flexible handle, resets safety block, rack drives block, handle reset safety block, rack bandMotion block spring, band motion block pin, brake block spring, shifting fork pin.Flexible handle is mounted on fixed handle, and rack drives block passes through bandMotion block pin is mounted on flexible handle, and rack drives block spring is mounted on band motion block pin, and side is withstood on rack drives block, separatelySide is withstood on flexible handle.Handle resets safety block and is mounted on rack drives block by shifting fork pin.Brake block spring is installedOn flexible handle, one end withstands on handle and resets on safety block.Safety block is resetted to be mounted on flexible handle.Before rack drives blockEnd is equipped with rack and pushes protrusion.
The fixed handle is made of left fixed handle, right fixed handle two parts.
Described casing, connecting rod, band knife bar, connector, steering knuckle etc. are all made of metal material and are made, and structure is closedReason, intensity is high, more suitable for one-handed performance.
Operation principle
When operation, disposable hysteroscope internal cutting stapler jaw is in the open state, makees at this point, retaining safety device playsWith the positive stop lug boss of the percussion block limiting plate lower part in retaining safety device is stuck in the triangle limit convex of percussion block upper cover lower partThe front end risen prevents percussion block toward front slide, causes the closure of jaw.Only knife safety device middle rack safety block is located at rack limitIn the inverted trapezoidal slot being equipped in the middle part of the block drive link of position, due to the effect of relief spring, the protrusion of rack safety block lower end is stuck in toothIn rack insurance card slot on item, prevents rack from firing forward, play the role of only knife insurance.
Protection cap is removed at this time, and disposable hysteroscope internal cutting stapler front end enters abdominal cavity by puncture outfit, and resist-nailed seat isFixing device is inserted into tissue, and staple cartridge tray is mounted on by resist-nailed seat pin on resist-nailed seat, and steering knuckle, connector, connection are passed throughBar, connecting rod fixed block, are fixed on fixed handle, pull flexible handle, by rack drives block, percussion block, casing, up and downConnecting plate, connecting tube squeeze forward, and staple cartridge tray is made to be closed grip tissue to resist-nailed seat.
Rack drives block pushes percussion block, percussion block upper cover toward front slide, and percussion block band carry-over bar limited block drive link is pastFront slide, this hour rack safety block are up slided out of inverted trapezoidal slot, compress relief spring, rack safety block lower part protrusion fromRack top is slided into rack insurance card slot on rack, opens and stops knife safety device.It prepares for the percussion of next step.
The positive stop lug boss for firing block limiting plate lower part in retaining safety device simultaneously, slips over the triangle of percussion block upper cover lower partShape limit protrusion is located at the triangle limit protrusion rear end of percussion block upper cover lower part.
Flexible handle is pulled again, pushes rack, band knife bar, band blade, cutter to cut forward by rack drives blockTissue, while cutter push beveling, push jack, anastomosis staple, carry out anastomosed tissue.
At this point, percussion block limiting plate is acted on by limit flat spring in retaining insurance, position is up moved, percussion block limitThe sliding boss of plate top side are slided in the percussion block limiting plate sliding groove on rack, the limit of percussion block limiting plate lower partLug boss position moves up, and blocks percussion block and percussion block upper cover, prevents percussion block and fires jaw block upper cover moves backward caused byIt opens, plays retaining safety effect.
Reseting handle is pulled, cutter are pulled back by release link, rack, band knife bar, band blade, resets, beats simultaneouslyJaw is opened, disposable hysteroscope internal cutting stapler front end is exited out of tissue, completes the cutting anastomosis operation of intracavitary.
When tissue is inserted into disposable hysteroscope internal cutting stapler front end, if angle is not suitable for percussion, need to adjust, it canTo use index finger to pull rotating handle, pulls steering drag hook by being rotated up and down block, turns to pin block, the tune of angle can be completedWhole, after angle is adjusted, middle finger pulls flexible handle, is closed jaw, pulls flexible handle to complete percussion again.
Disposable hysteroscope internal cutting stapler advantage:
Existing intraperitoneal Endo-GIA is that staple cartridge tray is fixed, cut anastomosed tissue when be by staple cartridge tray, nail bin,Stapler etc. is inserted into tissue, and so on the one hand, this part thereof thickness is thicker, needs the space of bigger, another aspect, when insertionAnastomosis staple in nail bin is easy to be taken out of by tissue, causes to coincide incomplete.And the disposable hysteroscope internal cutting kiss of the utility modelClutch is fixed using resist-nailed seat, and tissue is inserted into resist-nailed seat, and resist-nailed seat is relatively thin, is inserted into the space smaller needed when tissue, kissDowel does not contact before firing with tissue, avoids tissue and takes anastomosis staple out of, when anastomosed tissue, sutures incomplete risk.
Due to being provided with only knife safety device, before firing, it can effectively prevent artificial accidentally promotion reseting handle,Band carry-over bar slides forward, causes cutter to move, anastomosis staple drops out.
Due to being provided with retaining safety device, before percussion, jaw will not be closed easily, and when percussion, jaw will not be opened again,Grip tissue will not be caused not tight, cause to coincide incomplete.
Since a flexible handle is arranged, either adjusts the angle, or complete percussion, can make doctor with one-handed performanceLife can vacate hand and operate other instruments, allow operation to complete more smooth.
It in intracavitary small space, can arbitrarily be adjusted in the course of surgery due to being provided with clamping anastomotic component transferThe nail bin of disposable hysteroscope internal cutting stapler front end, the angle of resist-nailed seat make operation complete more smooth.
Description of the drawings
Below in conjunction with attached drawing, the utility model is described in further detail：
Fig. 1 is disposable hysteroscope internal cutting stapler structural schematic diagram；
Fig. 2 is the connecting rod fixture structure schematic diagram of disposable hysteroscope internal cutting stapler；
Fig. 3 is the connecting rod structural schematic diagram of disposable hysteroscope internal cutting stapler；
Fig. 4 is the clamping stapling apparatus structural schematic diagram of disposable hysteroscope internal cutting stapler；
Fig. 5 is the resist-nailed seat structural schematic diagram of disposable hysteroscope internal cutting stapler；
Fig. 6 is the staple cartridge tray structural schematic diagram of disposable hysteroscope internal cutting stapler；
Fig. 7 is the connector structural schematic diagram of disposable hysteroscope internal cutting stapler；
Fig. 8 is the clamping anastomotic component transfer structural schematic diagram of disposable hysteroscope internal cutting stapler；
Fig. 9 is the push broach apparatus structure schematic diagram of disposable hysteroscope internal cutting stapler；
Figure 10 is the only knife safety device structural schematic diagram of disposable hysteroscope internal cutting stapler；
Figure 11 is the rack limited block drive link structural schematic diagram of disposable hysteroscope internal cutting stapler；
Figure 12 is the rack safety block structure schematic diagram of disposable hysteroscope internal cutting stapler；
Figure 13 is the rack structure schematic diagram of disposable hysteroscope internal cutting stapler；
Figure 14 is the retaining safety device structural schematic diagram of disposable hysteroscope internal cutting stapler；
Figure 15 is the percussion block limit plate structure schematic diagram of disposable hysteroscope internal cutting stapler；
Figure 16 is the flexible handle component structure diagram of disposable hysteroscope internal cutting stapler；
Figure 17 is the fixed handle structural schematic diagram of disposable hysteroscope internal cutting stapler.
Specific implementation mode
With reference to attached drawing 1-17, disposable hysteroscope internal cutting stapler includes connection lever fixing apparatus, clamps stapling apparatus, folderTight anastomotic component transfer, push broach device, only knife safety device, retaining safety device, fixed handle 24, reseting handle, workFixed handle component.
It includes connecting rod fixed block 34 and connecting rod 13 to connect lever fixing apparatus.13 top of connecting rod, which is equipped with, turns to drag hook cunningDynamic slot 13-1, rear end is equipped with swivel head mounting groove 13-2, and is rotated up and down block loose slot 13-3, and middle part is equipped with through-hole 13-4 and usesIn installation band knife bar 14 and band blade 11, lower part is equipped with band blade briquetting mounting groove 13-5, and front upper is installed equipped with connectorCard slot 13-6,13 rear portion of connecting rod are fixed by the connecting rod block 34 and are fixedly mounted on fixed handle 24.
It includes nail bin 2, push jack 4, beveling 5, nail bin cover plate 1, protection cap 3, resist-nailed seat lid 6, staple cartridge tray to clamp stapling apparatus42, resist-nailed seat 41, connecting tube 40, be vertically connected with plate 38, clamp ring 37, casing 35, connector 36, percussion block 19, percussion block onLid 33, rack drives block 30, flexible handle 26.It is provided with nail slot 2-1 in nail bin, follows closely and anastomosis staple is housed in slot 2-1, under anastomosis stapleEquipped with push jack 4, for 4 front end of push jack equipped with beveling 5,2 bottom of nail bin is equipped with nail bin cover plate 1, and anti-thrust plate 4 and beveling 5 drop out.ProtectionLid 3 is mounted on above nail bin 2, and protection anastomosis staple is not fallen off.Resist-nailed seat lid 6 is welded on above resist-nailed seat 41, is set on resist-nailed seat 41There are staple formation slot 41-1,41 rear end of resist-nailed seat to be provided with staple cartridge tray mounting hole 41-2, it is convex that 42 rear portion of staple cartridge tray is equipped with installation42-1 is played, by installing protrusion 42-1, is mounted in the staple cartridge tray mounting hole 41-2 of resist-nailed seat 41.Nail bin 2 is mounted on staple cartridge trayIn 42.41 rear end of resist-nailed seat is equipped with resist-nailed seat pin mounting hole 41-3, and by resist-nailed seat pin, resist-nailed seat 41 is mounted on steering knuckleOn 39,39 rear end of steering knuckle is provided with connector mounting hole 39-1, and 36 front end of connector is equipped with installation protrusion 36-1, passes through companyConnector mounting hole 39-1, connector 36 and steering knuckle 39 are installed together.36 rear portion of connector passes through connecting rod installation cardSlot 36-2 is mounted on the front of connecting rod 13.Casing 35 is sleeved on 42 rear portion of resist-nailed seat 41 and staple cartridge tray, by being vertically connected with plate38 are fixedly connected on 35 front of casing.Casing 35 is sleeved on outside connecting rod 13, and 35 rear portion of casing is equipped with swivel head 35-1 and upperLower spill spin block mounting groove, 35 casing, 35 rear end are equipped with percussion block mounting groove 35-2, and percussion block 19 is sleeved on casing 35, fires block19 are mounted in the percussion block sliding groove 24-1 in fixed handle 24, and percussion block upper cover 33 is mounted on percussion block 19.Nail bin 2,Nail bin cover plate 1, resist-nailed seat 41 and 42 middle part of staple cartridge tray are both provided with cutting cutter groove.Flexible handle 26 is mounted on fixed handle 24On, by band motion block pin, rack drives block 30 is mounted on flexible handle 26.
Anastomotic component transfer is clamped to include steering knuckle 39, turn to pin block 10, assisted diversion item 9, rotating axle pin bulletSpring 44, swivel head spring 43, turn to drag hook 15, swivel head 16, be rotated up and down block 17, rotating handle 18, rotating handle cover board 20,Rotary handle spring 45.39 front of steering knuckle is fixed on resist-nailed seat 41, and rear portion is fixed on connector 36, is turned39 rear portion of connector is provided with sector gear 39-1.It turns to pin block 10 and is mounted on 36 middle part of connector, turn to 10 front end of pin block and setThere is dentation to pitch 10-1, matching, being positioned when for turning to, rotating axle pin with the sector gear 39-1 of 39 rear portion of steering knuckle settingSpring 44, which is sleeved on, to be turned on pin block 10, is turned to 10 rear end of pin block and is equipped with steering drag hook mounting hole 10-1.Two assisted diversion items 9It is separately mounted to 36 both sides of connector, swivel head spring 43 is set on assisted diversion item 9.It turns to 15 front end of drag hook and is provided with drawingHook 15-1, drag hook 15-1 are hooked in the steering drag hook mounting hole 10-1 for turning to 10 rear end of pin block.It turns to drag hook 15 and is mounted on connectionIn the steering drag hook sliding groove 13-1 on 13 top of bar, turns to 15 rear end of drag hook and be provided with kidney slot 15-2.Drag hook 15 is turned to pass throughThe kidney slot 15-2 of rear end is rotated up and down block 17 with 17 and connect, and is rotated up and down block 17 and is rotated up and down block work mounted on connecting rod 13In dynamic slot 13-3, it is rotated up and down on block 17 and is provided with rotating handle installation protrusion 17-1, rotating handle 18, which is sleeved on, to be rotated up and downOn the rotating handle installation protrusion 17-1 of block 17.18 rear portion of rotating handle is equipped with petal-like drag hook 18-1.Rotating handle cover board20 are fitted in rotating handle 18.18 front end of rotating handle is equipped with swivel head 16.Rotary handle spring 43 is mounted on rotationIt changes hands in handle 18, front end is played reset role against block 17, rear end is rotated up and down against fixed handle 24.
Push broach device includes cutter 7, band blade 11, band blade briquetting 12, band knife bar 14, rack 25, rack drives block30, flexible handle 26 and with motion block pin 46.Cutter 7 are welded on 11 front end of band blade, and band blade 11 is mounted on connecting rod 13Middle part, band blade briquetting 12 are equipped with band blade sliding groove 12-1, and band blade briquetting 12 is mounted on connecting rod 13 in the following, restriction band11 position of blade, band blade 11 slide in band blade briquetting sliding groove 12-1.11 rear end of band blade is equipped with hook 11-1, band knife14 front end of bar is equipped with hole 14-1, and the hook 11-1 of 11 rear end of band blade is hooked in the hole 14-1 with 14 front end of knife bar, band knife bar 14In the through-hole 13-4 at 13 middle part of connecting rod, 14 rear end of band knife bar is equipped with rack connector 14-2.Rack 25 is mounted on solidDetermine in the rack sliding groove 24-2 of handle 24,25 front end of rack is connect with the rack connector 14-2 with 14 rear end of knife bar, rack25 rear ends are equipped with release link mounting hole 25-1.Flexible handle 26 is mounted on fixed handle 24, and rack drives block 30 passes through driveBlock pin 46 is mounted on flexible handle 26.
Only knife safety device includes percussion block 19, percussion block upper cover 33, rack 25, rack safety block 23, rack limited blockDrive link 22, relief spring 47, release link 29, reseting handle 28.The percussion block that block 19 is mounted in fixed handle 24 is fired to slideIn dynamic slot 24-1, percussion block upper cover 33 is mounted on percussion block 19.It fires 19 front end of block and casing 35 is housed.Rack 25 is mounted on and hitsIt sends out between block 19 and percussion block upper cover 33.25 top of rack is equipped with rack and insures card slot 25-2, and rear end is equipped with release link mounting hole25-1, release link 29 are mounted in the release link mounting hole 25-1 of 25 rear end of rack, and release link peace is provided on reseting handle 28Tankage 28-1, reseting handle 28 are mounted on by release link 29 on fixed handle 24.It fires 19 rear end of block and is equipped with rack limited blockDrive link installs card slot 19-1, and rack limited block drive link 22 is mounted on the rack limited block drive link installation of 19 rear end of percussion blockIn card slot 19-1；22 middle part of rack limited block drive link is provided with inverted trapezoidal slot 22-1, and rack safety block 23 is located at rack limitIn the inverted trapezoidal slot 22-1 that 22 middle part of block drive link is equipped with, rack safety block 23 is sleeved on rack limited block drive link 22, tooth23 top of safety block is equipped with relief spring 47.
The raised 23-1 of 23 lower end of rack safety block is stuck in the insurance card slot of the rack on rack 25 25-2, prevents rack 25It fires forward, plays the role of only knife insurance.
Retaining safety device includes percussion block 19, percussion block upper cover 33, rack 25, percussion block limiting plate 21 and limiting plate bulletSpring 48.It fires in the percussion block sliding groove 24-1 that block 19 is mounted in fixed handle 24, percussion block upper cover 33 is mounted on percussion blockOn 19.It fires 19 front end of block and casing 35 is housed.Rack 25 is mounted between 19 percussion blocks and 33 percussion block upper covers.Fire block limitPlate 21 is mounted in the percussion block limiting plate mounting groove 24-3 of fixed handle 24, and limit flat spring 48 is mounted on percussion block limiting plateIn the spring mounting hole 21-1 of 21 lower parts.Fire the limit protrusion 33-1 that 33 lower part of block upper cover is equipped with triangle, percussion block limit21 lower part of plate is equipped with positive stop lug boss 21-2, and 21 top side of percussion block limiting plate is equipped with sliding boss 21-3.Rack 25 is equipped withFire block limiting plate sliding groove 25-3,21-3 sliding boss 21-3 the hitting on rack 25 of 21 top side of percussion block limiting plateSend out sliding in block limiting plate sliding groove 25-3.
Flexible handle component includes flexible handle 26, resets safety block 31, rack drives block 30, handle reset safety block32, rack drives block spring 49, band motion block pin 50, brake block spring 51, shifting fork pin 52.Flexible handle 26 is mounted on fixed handleOn 24, rack drives block 30 is mounted on by band motion block pin 50 on flexible handle 26, and rack drives block spring 49, which is mounted on, to be drivenOn block pin 50, side is withstood on rack drives block 30, and the other side is withstood on flexible handle 26.Handle resets safety block 32 by diallingBolt 52 is mounted on rack drives block 30.Brake block spring 51 is mounted on flexible handle 26, and one end withstands on the reset of 32 handlesOn safety block 32.Safety block 31 is resetted to be mounted on flexible handle 26.30 front end of rack drives block is equipped with rack and pushes protrusion 30-1。
The fixed handle 24 is made of left fixed handle, right fixed handle two parts.
Described casing 35, connecting rod 13, band knife bar 14, connector 36 and steering knuckle 39 etc. are all made of metal material systemAt reasonable for structure, intensity is high, more suitable for one-handed performance.
Disposable hysteroscope internal cutting stapler operation principle：
When operation, disposable hysteroscope internal cutting stapler jaw is in the open state, makees at this point, retaining safety device playsWith the positive stop lug boss 21-2 of 21 lower part of percussion block limiting plate in retaining safety device is stuck in the triangle of 33 lower part of percussion block upper coverThe front end of shape limit protrusion 33-1 prevents percussion block 19 toward front slide, causes the closure of jaw.Only 23 racks in knife safety deviceSafety block 23 is located in the inverted trapezoidal slot 22-1 that the middle part of rack limited block drive link 22 is equipped with, due to the effect of relief spring 47,The raised 23-1 of 23 lower end of rack safety block is stuck in the insurance card slot of the rack on rack 25 25-2, prevents rack 25 toward forward playHair plays the role of only knife insurance.
Protection cap 3 is removed at this time, and disposable hysteroscope internal cutting stapler front end enters abdominal cavity, resist-nailed seat 41 by puncture outfitFor fixing device, it is inserted into tissue, staple cartridge tray 42 is mounted on by resist-nailed seat pin on resist-nailed seat 41, and steering knuckle 39, connection are passed throughFirst 36, connecting rod 13, connecting rod fixed block 34, are fixed on fixed handle 24, pull flexible handle 26, pass through rack drives block30, fire block 19, casing 35, be vertically connected with plate 38, connecting tube 40 squeezes forward, make staple cartridge tray 42 to resist-nailed seat 41 be closed clampTissue.
Rack drives block 30 pushes percussion block 19, percussion block upper cover 33 toward front slide, and percussion block 19 is with carry-over bar limited blockDrive link 22 is up slided toward front slide, this hour rack safety block 23 out of inverted trapezoidal slot 22-1, compresses relief spring 47, rackThe raised 23-1 of 23 lower part of safety block slides into 25 top of rack out of rack insurance card slot 25-2 on rack 25, opens and stops knife guarantorDangerous device.It prepares for the percussion of next step.
The positive stop lug boss 21-2 for firing 21 lower part of block limiting plate in retaining safety device simultaneously, slips under percussion block upper cover 33The triangle limit protrusion 33-1 in portion is located at the rear ends triangle limit protrusion 33-1 of 33 lower part of percussion block upper cover.
Flexible handle 26 is pulled again, and rack 25, band knife bar 14, band blade 11, cutting are pushed by rack drives block 30Knife 7 cuts forward tissue, while cutter 7 push beveling 5, push jack 4, anastomosis staple, carries out anastomosed tissue.
At this point, percussion block limiting plate 21 by the effect for limiting flat spring 48, up move by position in retaining insurance, block is firedThe sliding boss 21-3 of 21 top side of limiting plate is slided in the percussion block limiting plate sliding groove 25-3 on rack 25, fires blockThe positions positive stop lug boss 21-2 of 21 lower part of limiting plate move up, and block 19 percussion blocks 19 and percussion block upper cover 33, prevent percussion block 19Jaw moved with percussion block upper cover 33 backward caused by is opened, and retaining safety effect is played.
Reseting handle 28 is pulled, is pulled back cutter 7 by release link 29, rack 25, band knife bar 14, band blade 11,It resets, opens simultaneously jaw, disposable hysteroscope internal cutting stapler front end is exited out of tissue, the cutting for completing intracavitary coincideOperation.
When tissue is inserted into disposable hysteroscope internal cutting stapler front end, if angle is not suitable for percussion, need to adjust, it canTo use index finger to pull rotating handle 18, pulls steering drag hook 15 by being rotated up and down block 17, turns to pin block 10, angle can be completedThe adjustment of degree, after angle is adjusted, middle finger pulls flexible handle 26, is closed jaw, pulls flexible handle 26 to complete percussion again.
The disposable hysteroscope internal cutting stapler of the utility model is fixed using resist-nailed seat, and tissue is inserted into resist-nailed seat,Resist-nailed seat is relatively thin, is inserted into the space smaller needed when tissue, and anastomosis staple does not contact before firing with tissue, and avoiding tissue will kissDowel is taken out of, when anastomosed tissue, sutures incomplete risk.
Due to being provided with only knife safety device, before firing, it can effectively prevent artificial accidentally promotion reseting handle,Band carry-over bar slides forward, causes cutter to move, anastomosis staple drops out.
Due to being provided with retaining safety device, before percussion, jaw will not be closed easily, and when percussion, jaw will not be opened again,Grip tissue will not be caused not tight, cause to coincide incomplete.
Since a flexible handle is arranged, either adjusts the angle, or complete percussion, can make doctor with one-handed performanceLife can vacate hand and operate other instruments, allow operation to complete more smooth.
It in intracavitary small space, can arbitrarily be adjusted in the course of surgery due to being provided with clamping anastomotic component transferThe nail bin of disposable hysteroscope internal cutting stapler front end, the angle of resist-nailed seat make operation complete more smooth.