Minimally Invasive Surgery hysteroscope Endo-GIA guide hookTechnical field
The utility model belongs to Minimally Invasive Surgery the field of medical instrument technology, and in particular to one kind is convenient for operative doctor by nail anvilQuasi- cutting tissue is passed through, observation is facilitated, can prevent from accidentally following closely, accidentally cut, practicability is good, using flexible, and safe and reliable is micro-Invasive procedures hysteroscope Endo-GIA guide hook.
Background technique
Currently, Minimally Invasive Surgery is when cutting off institutional framework (such as blood vessel, bronchus, lung tissue, oesophagus or stomach and intestine), generallyUse the hysteroscope Endo-GIA with titanium nail.During operating hysteroscope Endo-GIA, need the nail of similar lower jawAnvil is inserted into the lower section of quasi- cutting tissue；But due to the blocking of other tissues in front of practical operation angle and Endo-GIA, warpOften keep the insertion of Endo-GIA nail anvil relatively difficult.Moreover, under the conditions of Minimally Invasive Surgery doctor field of view and operational capacityIt is limited, since the front end of Endo-GIA nail anvil lacks barrier structure, the normal tissue that need not be cut is caused to be easily advanced intoIn the range of seized on both sides by the arms the cutting of Endo-GIA, the mistake damage of normal tissue is often resulted in when in operation.So operative doctor existsIn minimal invasive surgical procedures, it usually needs the abundant free and confirmation of long period to extend the time of operation, reduces effectRate, there are medical hidden danger.
In addition, guiding and blocking mechanism in front of some existing Endo-GIA nail anvils, are all made of the knot with nail anvil oneConfiguration formula, it usually needs additionally collect the consumptive material expense of thousands of members, and then increase the financial burden of patient, be not suitable at this stageChina's actual conditions, the serious development and popularization for restricting Minimally Invasive Surgery.Therefore it is necessary to the Endo-GIA nail anvil knots to the prior artStructure improves.
Utility model content
The utility model provides one kind convenient for operative doctor and nail anvil is passed through quasi- cutting group aiming at the above problemIt knits, facilitates observation, can prevent from accidentally following closely, accidentally cut, practicability is good, using flexible, and safe and reliable Minimally Invasive Surgery hysteroscope cuts kissClutch guide hook.
The technical scheme adopted by the utility model is the Minimally Invasive Surgery hysteroscope Endo-GIA guide hook includes arc cardPlate, it is characterised in that: the front end of the arc snap-gauge is provided with the short beak crotch being folded upward at, and the rear end of arc snap-gauge is provided withU-shaped tail end；U-shaped tail end is made of the tailgate for being located at two sides, is provided with U-shaped opening between two tailgates；The arc cardFront edge of board inside, the position being connected with short beak crotch are provided with preceding grab, and preceding grab includes the grab being connected with arc snap-gaugeMain body, grab main body are provided with joint end to one end that arc snap-gauge rear end extends, are provided with cutting groove in the middle part of joint end；InstituteIt states arc snap-gauge to be connected with U-shaped tail end the two sides at position, is respectively arranged with the lateral card to bend inwards；The U-shaped tail endThe rear end of tailgate is respectively arranged with the rear end card being folded upward at.
The arc snap-gauge, short beak crotch, U-shaped tail end outer surface be provided with non-sticking lining.It is led with reducing staplerThe coefficient of friction for drawing hook, facilitates surgical procedure.
The non-sticking lining of the arc snap-gauge, short beak crotch and the setting of U-shaped trailing exterior surface is polytetrafluorethylecoatings coatings.
The edge of the short beak crotch of arc snap-gauge front end setting passes through rounding processing.To pass through quasi- cutting tissueWhen with pushing the normal tissue that need not be cut open, the damage to the tissue unrelated with cutting is avoided；It effectively prevent the mistake in art to follow closely, accidentallyPhenomenon is cut, accuracy and the flexibility of operation are improved.
The arc snap-gauge, short beak crotch and U-shaped tail end are made of high duty metal foil.To reduce entire coincideWhile device guide hook thickness, it is ensured that stapler guide hook has enough structural strengths.
The high duty metal foil is titanium alloy foil or scandium-aluminum alloy foil.
It is provided with the matching used stapler nail anvil of Minimally Invasive Surgery hysteroscope Endo-GIA guide hook, including topSeveral support the chopping block of nail groove, and the blade sliding slot along cut direction arrangement is provided in the middle part of chopping block；Blade sliding slot is located at anvilThe opening of front edge of board is provided with front end card slot, and front end card slot and the preceding grab of the stapler guide hook are in mating connection；InstituteIt states the two sides in the middle part of chopping block and is respectively arranged with lateral card edge, lateral card edge is matched with the lateral card of the stapler guide hookConnection；The two sides at the chopping block rear portion are respectively arranged with the guiding side plate being folded upward at, and the rear end of chopping block is provided with connecting pin；AnvilAt the rear portion of plate, position corresponding with stapler guide hook rear end card, it is respectively arranged with rear end edge.To pass through kissThe rear end card of the preceding grab of clutch guide hook front end, the lateral card of on both sides of the middle and rear end, respectively with the front end card of nail anvilSlot, lateral card edge and rear end edge are located by connecting, and are connected to stapler guide hook firmly on stapler nail anvil, and be convenient forDisassembly and replacement.
The utility model has the beneficial effects that since the utility model using front end is provided with the arc snap-gauge of short beak crotch,The rear end of arc snap-gauge is provided with U-shaped tail end, is provided with U-shaped opening between two tailgates of U-shaped tail end；In arc snap-gauge front endSide, the position being connected with short beak crotch are provided with preceding grab, and the grab main body of preceding grab is connected with arc snap-gauge, preceding grab toOne end that arc snap-gauge rear end extends is provided with the joint end of middle part arrangement cutting groove；Arc snap-gauge and U-shaped tail end phase connectionLateral card is respectively set in the two sides of position；The structure type of rear end card is respectively set in the rear end of U-shaped tail end tailgate, so itsHave the advantages that 1, design rationally, it is compact-sized, optimize the structure of Endo-GIA nail anvil；Convenient for by Endo-GIANail anvil pass through and need to cut off the lower edge of institutional framework.2, the short beak crotch of stapler guide hook is blocked in the front end of nail anvil,The tissue and organ unrelated with cutting can be pushed in operating process open, the mistake being effectively prevented in art is followed closely, accidentally cut, and operation essence is improvedTrue property.3, due to short beak crotch design it is shorter, so improving the using flexible of Endo-GIA in the course of surgery.4,Demountable used by stapler guide hook facilitates installation, increases versatility；And rely on elastic construction and fiveThe design of stuck point, it is ensured that the reliability for fixing connection guarantees the safe and efficient of operation.5, cost has larger amplitude than the prior artThe decline of degree.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is a kind of structural schematic diagram of the preceding grab in Fig. 2.
Fig. 4 is a kind of structural schematic diagram with the matching used stapler nail anvil of the utility model.
Fig. 5 is the assembling process schematic diagram of the utility model Yu stapler nail anvil.
Fig. 6 is that the stapler guide hook of the utility model is mounted on the structural schematic diagram on stapler nail anvil.
Fig. 7 is the B direction view of Fig. 6.
Number explanation in figure: 1 arc snap-gauge, 2 sides to card, 3 U-shaped tail ends, 4 tailgates, 5 U-shaped openings, 6 rear end cards,Grab, 8 short beak crotches, 9 grab main bodys, 10 joint ends, 11 cutting grooves, 12 chopping blocks, 13 sides are oriented to side plates, 15 to card edge, 14 before 7Nail groove, 18 blade sliding slots, 19 front end card slots, 20 stapler guide hooks, 21 nail anvils are supported in rear end edge, 16 connecting pins, 17.
Specific embodiment
The specific structure of the utility model is described in detail according to Fig. 1~7.The Minimally Invasive Surgery hysteroscope Endo-GIA guide hookArc snap-gauge 1 including strip, the front end of arc snap-gauge 1 are provided with the short beak for pushing and cutting extraneous tissue and organ openCrotch 8, and short beak crotch 8 is bent towards anastomat nail storehouse side.For push open need not cutting normal tissue and when organ,Avoid the purpose to the tissue and organ damage unrelated with cutting, the edge of the short beak crotch 8 of 1 front end of arc snap-gauge setting,Handled by rounding；To be effectively prevented the damage to surrounding tissue and generation phenomena such as accidentally following closely, accidentally cut, and then improve handThe accuracy of art and flexibility.
The rear end of arc snap-gauge 1 is provided with the U-shaped tail end 3 for being cooperatively connected with 21 rear portion of stapler nail anvil.U-shaped tailEnd 3 includes the strip tailgate 4 for being located at two sides；Between two tailgates 4, it is provided with for being installed in stapler guide hook 20When, avoid stapler execute head at projection cube structure U-shaped opening 5.The inside of 1 front end of arc snap-gauge is connected with short beak crotch 8Position at, be provided with for 21 front end card slot 19 of nail anvil cooperation clamping preceding grab 7.Preceding grab 7 is by 9 structure of grab main bodyAt one end of preceding 7 grab main body 9 of grab is connected with arc snap-gauge 1；Grab main body 9 extend to 1 rear end of arc snap-gauge oneEnd, then be provided with the joint end 10 for extending into 21 front end card slot 19 of nail anvil.The middle part of preceding 7 joint end 10 of grab, settingThere is the cutting groove 11 for avoiding the cutting blade being arranged in 21 blade sliding slot 18 of nail anvil.Arc snap-gauge 1 and rear portion U-shaped tail end3 two sides for being connected position, be respectively arranged with bend inwards, for the lateral cooperation of card edge 13 clamping of 21 on both sides of the middle of nail anvilLateral card 2.The rear end of 3 two tailgates 4 of U-shaped tail end, then be respectively arranged be folded upward at, for two, 21 rear portion of nail anvilThe rear end card 6 of the cooperation clamping of rear end edge 15.
In order to while reducing entire 20 thickness of stapler guide hook, being easy to use, it is ensured that stapler guide hook20 have enough structural strengths, and arc snap-gauge 1, short beak crotch 8 and U-shaped tail end 3 are all made of with high-intensitive metal foilIt is made.According to needs are specifically used, metal foil can be the conjunction of the titanium with high elastic modulus (600~1000MPa)Goldleaf material or scandium-aluminum alloy foil；And the thickness of metal foil can be between 0.20~0.30mm.It is led for stapler is reducedThe purpose drawn 20 coefficient of friction of hook, facilitate surgical procedure, arc snap-gauge 1, short beak crotch 8, U-shaped tail end 3 are far from nail bin sideOn outer surface, it is provided with non-sticking lining；In conjunction with specific use condition, non-sticking lining can use polytetrafluorethylecoatings coatings.
It is provided with the matching used stapler nail anvil 21 of Minimally Invasive Surgery hysteroscope Endo-GIA guide hook, including topSeveral support the strip chopping block 12 of nail groove 17, and the middle part of chopping block 12 is provided with along cut direction arrangement, for being cutterThe blade sliding slot 18 of piece mobile guide.Blade sliding slot 18 is located at the opening of 12 front end of chopping block, is provided with for leading with staplerDraw the front end card slot 19 that grab 7 before hook 20 matches clamping.The two sides at 21 chopping block of nail anvil, 12 middle part, are separately provided for and kiss20 side of clutch guide hook matches the lateral card edge 13 of clamping to card 2.The two sides at 21 chopping block of nail anvil, 12 rear portion, then be respectively setThere is the guiding side plate 14 for being oriented to, being folded upward at for the closure of nail anvil 21；The rear end of 21 chopping block 12 of nail anvil, be provided with for kissClutch executes the connecting pin 16 that the driving end of head is connected.The rear portion of 21 chopping block 12 of nail anvil and 20 rear end card 6 of stapler guide hookAt corresponding position, it is respectively arranged with rear end edge 15.
The preceding grab 7 of 20 front end of stapler guide hook and front end card slot 19,20 middle part two of stapler guide hook of nail anvil 21The lateral card 2 of side and lateral card edge 13, the rear end card 6 of 20 rear end of stapler guide hook and the rear end of nail anvil 21 of nail anvil 21Edge 15, is successively clamped respectively, so that stapler guide hook 20 is firmly connected on stapler nail anvil 21, and facilitates kissThe disassembly and replacement of clutch guide hook 20., it is understood that the arc of the inside cylinder of 20 arc snap-gauge 1 of stapler guide hookRadius can be slightly less than the arc radius of the outside cylinder of 21 chopping block 12 of stapler nail anvil, in order to stapler guide hook 20 and nailThe fastening of anvil 21 fastens.
The Minimally Invasive Surgery hysteroscope Endo-GIA guide hook is in use, firstly, by the preceding card of 20 front end of stapler guide hookHook 7 is inserted into the front end card slot 19 of stapler nail anvil 21；Then, make the inside cylinder of 20 arc snap-gauge 1 of stapler guide hook,(as shown in Figure 5) is closed to the mixed lateral column face paste of 21 chopping block 12 of stapler nail anvil.It is utilized respectively 20 middle part two of stapler guide hook againThe lateral card 2 of side connect with 21 side of nail anvil to the fixing of card edge 13 and the rear end card 6 of 20 rear end of stapler guide hook withThe fixing of 21 rear end edge 15 of nail anvil connects, and stapler guide hook 20 is firmly connected on stapler nail anvil 21.
Operative doctor operates stapler main body, and the execution head (including nail bin and nail anvil 21) of stapler extension front end is passed throughPatient's body is entered by operative incision；In operation, the short beak of 20 front end of stapler guide hook on nail anvil 21 is setCrotch 8 passes through convenient for stapler nail anvil 21 and needs to cut off the lower edge of institutional framework, and can push open the tissue unrelated with cutting andOrgan, the mistake nail being effectively prevented in art are accidentally cut.Later, the operating mechanism on stapler main body is driven, nail bin and nail are being drivenWhile anvil 21 is gradually closed, allow the nail block that supports in nail bin that anastomosis staple is driven to move to the direction of nail anvil 21, and then by coincideingThe collective effect of nail and nail anvil 21, sutures quasi- cutting tissue；While quasi- cutting tissue is sewn, cutting blade is along knifePiece sliding slot cuts organizing and implementing.