CN202515712U - Suturing instrument with knife - Google Patents
Suturing instrument with knife Download PDFInfo
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- CN202515712U CN202515712U CN 201220034157 CN201220034157U CN202515712U CN 202515712 U CN202515712 U CN 202515712U CN 201220034157 CN201220034157 CN 201220034157 CN 201220034157 U CN201220034157 U CN 201220034157U CN 202515712 U CN202515712 U CN 202515712U
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- steel wire
- wire rope
- cutter
- block
- tooth bar
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
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- Portable Nailing Machines And Staplers (AREA)
Abstract
The utility model relates to a suturing instrument with a knife. The suturing instrument with the knife comprises a bracket plate, a staple propping seat, a staple cartridge, a cutter assembly, a pushing mechanism and a traction mechanism, wherein the pushing mechanism and the traction mechanism are installed on the bracket plate; the pushing mechanism is connected with the staple cartridge; the cutter assembly is arranged in an internal cavity of the staple cartridge and comprises a cutter slider and a cutter connecting steel wire rope; and the traction mechanism comprises a traction steel wire rope which is connected with a free end of the cutter connecting steel wire rope. The utility model provides a linear cutting suturing instrument with a sliding knife; the linear cutting suturing instrument with the sliding knife is suitable for the longitudinal staple cartridge with a small space and has the characteristics of simple structure, convenience in assembling and safety in use; the suturing instrument has small actuating force and good staple molding effect; and under the action of the tension of the traction mechanism, the suturing and cutting actions are realized at the same time and the cutting direction is parallel with the direction of a suturing line, so that the linear cutting suturing instrument with the sliding knife is more suitable for popularization and application.
Description
Technical field
This utility model relates to a kind of surgical operation and uses medical apparatus and instruments, particularly relates to a kind of band cutter stiching instrument.
Background technology
In the orthopaedic surgical operations operation, medical suturing instrument has become the requisite medical assistance apparatus in the tissue sewing process.Along with the development and the research and development of products of medical science, more and more multi-functional seam nail series products is applied to clinical, and the scope of application has related to every field such as gastrointestinal surgery, Genneral Surgery, thoracic surgery, Urology Surgery, gynecological, becomes one of doctor's necessary tool.The application of medical suturing instrument have in the operation hemorrhage less, operating time short, can reduce error hand-manipulated, avoid infection, postoperative function recovers plurality of advantages such as fast.
A kind of product commonly used is the straight cuts stiching instrument in the medical suturing instrument, is mainly used in to sew up cavity tissue, sews up mouth neatly and very firm, is not easy to take place the stitching stomatorrhagia.Initial straight line stiching instrument has only the function of stitching, after tissue apposition finishes, need the doctor manually unnecessary tissue to be sliced off, and the doctor is not easy to grasp the distance between line of cut and the stitching thread, and then causes line of cut irregular, and the risk that leakage blood takes place is very big.
Therefore, be directed to the operation of human body privileged sites, developed the stiching instrument that directly has cutter, for example Johson & Johnson produces triumphant way; It has remedied the shortcoming of straight line stiching instrument to a certain extent, can accomplish the action of sewing up and cutting simultaneously, and the apparatus bar is longer; Be provided with handle and trigger, make things convenient for the doctor to operate, than the traditional line stiching instrument; This apparatus can be saved doctor's operating time greatly, reduces amount of bleeding, improves success rate of operation.
But; The stiching instrument class apparatus of existing band cutting knife; All be on the basis of original straight line stiching instrument, at cutting knife of two row's suturing nail center fixed, the cut direction of cutting knife is vertical with sutural direction; Cutting knife under the effect of thrust with pushing slice of nail one in the same way the nail supporting base direction do single lengthwise movement, lean on longitudinally moment thrust will organize and organize following Equipment on turning-machine for setting-on cutting tools cut-out.The advantage of this structure is simple in structure, and shortcoming is an effort when cutting and organizing, and the cut edge is irregular, and the seam nail tilts to the direction of cutting knife easily, causes the molding of seam nail relatively poor, sews up defectives such as mouthful leakiness.
This shows that above-mentioned existing band cutter stiching instrument obviously still has inconvenience and defective, and demands urgently further improving in structure and use.How to found a kind of littler and better new band cutter stiching instrument of seam nail molding of percussion power of apparatus, real one of the current important research and development problem that belongs to.
The utility model content
The technical problem that this utility model will solve provides a kind of band cutter stiching instrument, makes the percussion power of its apparatus littler and the molding of seam nail is better, thereby overcomes the deficiency of existing band cutter stiching instrument.
For solving the problems of the technologies described above, a kind of band cutter of this utility model stiching instrument comprises supporting plate, nail supporting base, nail bin, cutter assembly, propulsive mechanism and draw-off mechanism, and wherein: propulsive mechanism and draw-off mechanism are installed on the supporting plate; Propulsive mechanism is connected with nail bin; Cutter assembly is installed in the nail bin inner chamber, comprises the cutting knife slide block and connects the cutter steel wire rope; Draw-off mechanism comprises the tractive steel wire rope, and the tractive steel wire rope is connected with the free end that connects the cutter steel wire rope.
A kind of improvement as this utility model; The described free end that connects the cutter steel wire rope is provided with snap close; The tractive steel wire rope with connect the cutter steel wire rope and be connected through coupling assembling; This coupling assembling comprises contiguous block, connects steel wire rope and snap close fixture, and wherein: contiguous block inside is divided into left chamber and right chamber through interlayer; An end that connects steel wire rope dock with the free end of tractive steel wire rope, and the other end penetrates left intracavity portion from the contiguous block left end, and on the termination that is positioned at contiguous block inside, pushing block is set, and between the left wall in this pushing block and left chamber the bit shift compensation spring is installed; The snap close fixture is installed in the right intracavity of contiguous block, and right chamber right-hand member is provided with the snap close loading hatch, and between snap close fixture and a left side, right chamber wall, is equipped with mounting spring, and the snap close that connects the cutter steel wire rope is installed in the right intracavity of contiguous block of steel wire rope coupling assembling.
Offer chute on the right chamber sidewall of described contiguous block; Described snap close fixture outer wall and right cavity wall match, and are provided with the sliding pin that leans out right chamber chute, and snap close fixture right part is provided with the cavity that matches with the snap close that connects the cutter steel wire rope; The snap close loading hatch comprises in the middle of the right wall in right chamber offers the draw-in groove to sidewall, and is positioned at the company's cutter Steel wire rope lock that is communicated with this draw-in groove on the sidewall of right chamber and buckles into mouth.
Described cutter assembly also comprises guide plate and fixed block; Wherein: center, cutting knife slide block left side is provided with cutting knife; Both sides are provided with the percussion sheet before and after the cutting knife, and the percussion sheet extends to form location-plate left, and the location-plate outside is provided with alignment pin; The location-plate inboard is provided with the steel wire rope mounting blocks, and the steel wire rope mounting blocks offers installing hole along the cutting knife direction; The stiff end that connects the cutter steel wire rope passes said installing hole and fixing; Offer the gathering sill corresponding with said alignment pin on the guide plate, said cutting knife slide block slidably is installed between two guide plates through alignment pin; Fixed block is installed in the left side of guide plate, cutting knife slide block.
Described each location-plate outside is equipped with two alignment pins; Correspondence is provided with two gathering sills on each guide plate; Article two, gathering sill is parallel in cut length, and is being provided with flex point left near the initial end place, and the gathering sill that is positioned at the left side also is provided with flex point to the right at clearing end; Described fixed block right side central is provided with the cutting knife chute; Both sides are the guide plate installation step before and after the cutting knife chute; The initial end of fixed block is provided with and the turn left dislocation step of structure matching of guide plate; Clearing end is provided with block, and on block, offers the steel wire rope locating hole, and the described cutter steel wire rope that connects passes from this locating hole.
The lower left of described fixed block is provided with safety block; The safety block left side is provided with leaf spring; Safety block inside is provided with the wind spring that resets; The free end of wind spring of resetting is fixedly connected with the company cutter steel wire rope termination at installing hole place through tightrope, and the link of reset wind spring and tightrope is stuck in the left and right directions groove of safety block, and is being with lower right corner setting of cutter stiching instrument jaw and the corresponding projection of safety block right positions.
Described draw-off mechanism also comprises locating piece, tooth bar, gear and tractive handle, and wherein: locating piece is fixedly connected with supporting plate, and inner chamber is provided with the tooth bar guide rail, and tooth bar guide rail below is provided with the gear axis hole, and the right section of tooth bar guide rail forms the closed-loop path; The tooth bar left end is connected with reset tension spring, and is installed on the tooth bar guide rail through sliding pin; Wheel and rack meshes, and is installed on the gear axis hole through its turning cylinder; The stiff end of tractive steel wire rope is wrapped on the gear clockwise and fixes; The tractive handle is installed on the supporting plate through turning cylinder, and its upper end is connected with the contact of tooth bar left end.
Described tooth bar top is provided with projection, and top of chamber is provided with the leaf spring hook in the locating piece, and is provided with the leaf spring limited block at leaf spring hook opening part, between leaf spring hook and leaf spring limited block, leaf spring is installed, and the projection at leaf spring lower end and tooth bar top offsets.
Described tooth bar is the toothed trench structure of bilateral; Described gear comprise be positioned at the outermost both sides respectively with the transmission gear piece of tooth bar engagement, be positioned at inboard ratchet of transmission gear piece and the winding groove that is positioned at intermediate course, the stiff end of tractive steel wire rope is fastened in this winding groove; Described locating piece inner chamber also is equipped with rotating auxiliary catch and restoring board moving up and down; And below the auxiliary catch turning cylinder, be provided with the auxiliary catch limited step; Auxiliary catch is positioned at the lower left of gear ratchet; The one of which end be provided with can with the coupler body of ratchet engaged, the cervical region of the other end and restoring board offsets.
Described supporting plate is provided with sliding pin, and described propulsive mechanism comprises: promote the push pedal of nail bin, offer the corresponding also track groove of horizontal expansion of sliding pin with supporting plate in the push pedal; The propelling hands handle hinged with supporting plate; And respectively with the brace that advances handle upper end, push pedal left end to be rotationally connected.
After adopting such design, this utility model provides a kind of straight cuts stiching instrument with sliding cutter, is applicable to vertically little spatial nail bin; It is simple in structure, and is easy to assembly, safe in utilization; Little and the seam nail forming of the percussion power of stiching instrument under the tension of draw-off mechanism, realizes sewing up and cutting action simultaneously; Its cut direction is parallel with the stitching thread direction, therefore is more suitable for promoting the use of.
Description of drawings
Above-mentioned only is the general introduction of this utility model technical scheme, in order more to know the technological means of understanding this utility model, below in conjunction with the accompanying drawing and the specific embodiment this utility model is done further to specify.
Fig. 1 is the structural representation of this utility model band cutter stiching instrument.
Fig. 2 is the cutting knife slide block structure sketch map of this utility model band cutter stiching instrument.
Fig. 3 is the cutting knife slide block of this utility model band cutter stiching instrument and connects cutter steel cord structure sketch map.
Fig. 4 is the cutter assembly guide board structure sketch map of this utility model band cutter stiching instrument.
Fig. 5 is the cutter assembly fixed-block-architecture (FBA) sketch map of this utility model band cutter stiching instrument.
Fig. 6 is the cutter assembly safety block of this utility model, the wind spring that resets, leaf spring, tightrope structural representation.
Fig. 7 is the nail bin structural representation of this utility model band cutter stiching instrument.
Fig. 8 is the nail bin inner chamber sectional structure sketch map of this utility model band cutter stiching instrument.
Fig. 9 is this utility model band cutter stiching instrument cutting knife slide block, company's cutter steel wire rope and fixed block combination sketch map.
Figure 10 is the combination sketch map of half nail bin of this utility model and guide plate, cutting knife slide block, fixed block.
Figure 11 is guide plate and cutting knife slide block among Fig. 9, the aggregate erection sketch map that connects the cutter steel wire rope.
Figure 12 is the aggregate erection sketch map of guide plate and fixed block among Fig. 9.
Figure 13 is the view of this utility model cutting knife slide block before percussion.
Figure 14 is the view of this utility model cutting knife slide block in the cutting and stitching process.
Figure 15 is the rollover states sketch map of this utility model cutting knife slide block after cutting is accomplished.
Figure 16 is the structural representation of a kind of draw-off mechanism with the cutter stiching instrument of this utility model.
Figure 17 is the supporting plate structural representation of a kind of draw-off mechanism with the cutter stiching instrument of this utility model.
Figure 18 is the rack structure sketch map of a kind of draw-off mechanism with the cutter stiching instrument of this utility model.
Figure 19 is the gear structure sketch map of a kind of draw-off mechanism with the cutter stiching instrument of this utility model.
Figure 20 is that the tooth bar of this utility model draw-off mechanism is pulled up view.
Figure 21 is the tooth bar return state sketch map of this utility model draw-off mechanism.
Figure 22 is the structural representation of the steel wire rope coupling assembling of this utility model band cutter stiching instrument.
Figure 23 is the external structure sketch map of this utility model steel wire rope coupling assembling.
Figure 24 is the contiguous block shaft section structural representation of this utility model steel wire rope coupling assembling.
Figure 25 is the snap close fixture shaft section structural representation of this utility model steel wire rope coupling assembling.
Figure 26 is this utility model steel wire rope coupling assembling and the assembled state sketch map that connects the cutter steel wire rope.
Figure 27 is that this utility model steel wire rope coupling assembling is accomplished sketch map with the assembling that connects the cutter steel wire rope.
The specific embodiment
See also shown in Figure 1ly, this utility model band cutter stiching instrument comprises nail supporting base 1, nail bin 2, cutter assembly, propulsive mechanism, draw-off mechanism 5 and supporting plate 8.Wherein, Propulsive mechanism and draw-off mechanism 5 are installed on the supporting plate 8; Propulsive mechanism is connected with nail bin 2; Cutter assembly comprises cutting knife slide block 31 and connects cutter steel wire rope 32 and be installed in the inner chamber of nail bin 2 that draw-off mechanism 5 comprises tractive steel wire rope 51, and tractive steel wire rope 51 interconnects with the free end that connects cutter steel wire rope 32.
Preferable, please cooperate and consult shown in Fig. 2-5, the cutter assembly of this utility model also comprises guide plate 33 and fixed block 34 except that cutting knife slide block 31 and company's cutter steel wire rope 32.
See also shown in Figure 2; Cutting knife slide block 31 preferred integrated formed structures, the center, left side is provided with cutting knife 311, and both sides, cutting knife 311 front and back are provided with percussion sheet 312; Percussion sheet 312 extends to form location-plate 313 left; Location-plate 313 outsides are provided with alignment pin 314, and location-plate 313 inboards are provided with steel wire rope mounting blocks 315, and steel wire rope mounting blocks 315 offers installing hole 316 along the cutting knife direction.Cutting knife 311 can be selected one-sided arc knife face for use.Percussion sheet 312 can adopt polygonized structure, plays a part to promote pushing slice of nail and pull the trigger suturing nail.Cutting knife 311 is parallel to each other with percussion sheet 312, is " mountain " font structure.
See also shown in Figure 3ly, connect cutter steel wire rope 32 and select flexible wire ropes for use, its stiff end end passes the installing hole 315 of cutting knife slide block 31, and fixes with modes such as aluminium alloy dog, snap closes.
See also shown in Figure 4ly, offer the gathering sill 331 corresponding with the alignment pin of cutting knife slide block 31 314 on the guide plate 33, cutting knife slide block 31 slidably is installed between two guide plates 33 through alignment pin 314.Further; As shown in the figure; Each location-plate 313 outside of cutting knife slide block 31 are equipped with two alignment pins 314, and correspondence is provided with 331, two gathering sills of two gathering sills 331 and is parallel to each other in cut length on each guide plate 33; And being provided with flex point 332 left near the initial end place, the gathering sill that is positioned at the left side also is provided with flex point 333 to the right at clearing end.
The height setting of cut length gathering sill when guaranteeing that the cutting knife knife face exposes fully, should guarantee that the height that suturing nail is released by pushing slice of nail remains in effective cut coverage.The setting of flex point 332 left can make cutter assembly 1 before percussion, be hidden in fully in the nail bin, and cutter does not leak outside.The setting of flex point 333 to the right makes cutter assembly 1 after cutting is accomplished, and can rotate counterclockwise, thereby the cutting knife cutter head is hidden in the nail bin once more.
See also shown in Figure 5; Fixed block 34 is installed in the left side of guide plate 33 and cutting knife slide block 31, is preferably slab construction, and the right lateral surface middle part is provided with cutting knife chute 341; Both sides, cutting knife chute 341 front and back are guide plate installation step 342; The initial end of fixed block 34 is provided with and the turn left dislocation step 343 of structure matching of guide plate 33, and clearing end is provided with block 344, and on block 344, is provided with and cutting knife chute 341 corresponding and vertical boss; Offer steel wire rope locating hole 345 in the groove between this boss, from this locating hole 345, pass for connecting cutter steel wire rope 32.In addition, fixed block 34 both sides of the edge are horizontally arranged with also more than two pairs that card is installed is protruding 346, are preferably three pairs, and in the bottom of fixed block 34 wind spring that resets are set, and are used for the cutter assembly that resets.
In addition; Please cooperate consult shown in Figure 6; The lower left of fixed block 34 also can be provided with safety block 36; Safety block 36 left sides are provided with leaf spring 37, and safety block 36 inside are provided with the wind spring 35 that resets, and the free end of the wind spring 35 that resets is fixedly connected with company cutter steel wire rope 32 terminations at installing hole 316 places through tightrope 38 (for example adopting nylon rope); The link of wind spring 35 and tightrope 38 of resetting is stuck in the left and right directions groove of safety block 36, and is provided with and the corresponding projection 11 of safety block 36 right positions in the band cutter stiching instrument jaw lower right corner.
Please cooperate and consult Fig. 7, shown in Figure 8; Be provided with nail hole 21 and pushing slice of nail mounting groove 22 in the pushing slice of nail installation cavity part of nail bin 2; Nail bin 2 middle parts are axially arranged with cutting knife gathering sill 26; The nail bin inner chamber is provided with limited step 24 along cutting knife gathering sill 26 both sides, limited step 24 left sides, is respectively equipped with the guide plate mounting groove 23 identical with guide plate 33 shapes in nail bin 2 both sides, and the thickness of guide plate mounting groove 23 is identical with the width of above-mentioned limited step 24; Simultaneously nail bin 2 both sides also are provided with fixed block draw-in groove 25 are installed, and are used for blocking protruding 346 with the installation of fixed block 34 and cooperate and install and fix piece 34.
During installation, please cooperate and consult shown in Figure 9ly, at first will connect cutter steel wire rope 32 1 ends and pass the locating hole 345 on the fixed block baffle plate 344, further pass the installing hole 316 on the cutting knife slide block steel wire rope mounting blocks 315 again, use aluminium alloy dog or snap close to fix.
Afterwards, please cooperate and consult shown in Figure 10-12, a guide plate 33 is installed in the guide plate mounting groove 23 of a side nail bin 2, guide plate 33 right-hand members and cutting knife gathering sill 26 inboard limited steps 24 offset.Again two alignment pins 314 on the cutting knife slide block 31 are pushed the initial end of 33 two gathering sills 331 of guide plate respectively; And with the installation of fixed block 34 1 sides block protruding 346 insert nail bins 2 fixed block install in the draw-in groove 25, thereby fixed block 34 is fixedly mounted in the nail bin 2.The pin-and-hole of wind spring 35 through the nail bin both sides that reset is installed in the nail bin 2; Leaf spring 37 is fixed on nail bin 2 inside and offsets with safety block 36 left sides; Safety block 36 can be in nail bin 2 move left and right, and be provided with and the corresponding projection of safety block 36 tip positions in the band cutter stiching instrument jaw lower right corner.
At this moment; Guide plate 33 vertically is stuck between the limited step 24 of guide plate installation step 342 and nail bin of fixed block 34; The clearing end vertical plane of guide plate 33 and the block 344 of fixed block 34 match, and the dislocation step 343 of the initial end of guide plate 33 and fixed block 34 matches and is stuck in the vertical slot of nail bin 2.
The order that uses the same method is at last installed opposite side guide plate 33 and second half nail bin 2, accomplishes the installation of this utility model band cutter stiching instrument nail bin groupware.
Please cooperate and consult shown in Figure 13-15, before the percussion, cutting knife slide block 31 is positioned at dislocation step 343 places of fixed block 34 initial end, and whole cutting knife slide block 31 is embedded in the nail bin 2, and cutter does not leak outside.When nail bin 2 and nail supporting base 1 closure, the projection on the nail supporting base 1 is pressed safety block 36 left, and the link of feasible reset wind spring 36 and tightrope 38 breaks away from safety block 36 from the groove of safety block 36.Under draw-off mechanism and the action of traction that connects cutter steel wire rope 32, the wind spring 35 that resets is stretched, and cutting knife slide block 31 slides along the gathering sill 331 on the both sides guide plate 33, and when arriving left flex point 332, cutting knife 311 stretches out the surface of nail bin 2.Further tractive, cutting knife slide block 31 cooperates linear slide through alignment pin 314 gathering sill 331 in, and percussion sheet 312 promotes pushing slice of nail, and further releases to stitch to follow closely and make it and be closed into " B " font, and simultaneously, cutting knife 311 cuts and organizes along the stitching thread direction in proper order.When arriving to the right flex point 333, cutting knife slide block 31 is rotated counterclockwise, and cutter head is hidden in the nail bin 2.
As shown in Figure 1, the propulsive mechanism of this utility model mainly comprises push pedal 41, advances handle 43 and brace 44.Wherein, Supporting plate 8 is installed in the left part of band cutter stiching instrument; And be provided with sliding pin 81; Offer the track grooves 411 of and horizontal expansion corresponding with the sliding pin of supporting plate 8 81 in the push pedal 41, advance handle 43 and supporting plate 8 hinged, the two ends of brace 44 are rotationally connected with the upper end that advances handle 43 and the left end of push pedal 41 respectively.
Band cutter stiching instrument closing course mainly realizes through push pedal 41, supporting plate 8, propelling handle 43 and cooperatively interacting of brace 44; Hold and advance handle 43, masterpiece is used for the rotational pin of brace 44 left ends, changes it and advances angle; And then act on push pedal 41; Push pedal 41 is advanced to the right under the restriction of track groove 411 and sliding pin 81, promote nail bin 2 simultaneously and move right, accomplish closed action.
See also shown in Figure 16ly, the draw-off mechanism 5 of this utility model also comprises locating piece 52, tooth bar 53, gear 54 and tractive handle 55 except that tractive steel wire rope 51.Please cooperate and consult shown in Figure 17ly, locating piece 52 is fixedly connected with supporting plate 8, and its inner chamber middle part is provided with tooth bar guide rail 521, and tooth bar guide rail 521 belows are provided with gear axis hole 522, and the right section of tooth bar guide rail 521 forms closed-loop path as shown in the figure.Tooth bar 53 left ends are connected with the reset tension spring of band cutter stiching instrument, and both sides respectively are provided with former and later two sliding pins 531, and are installed on the tooth bar guide rail 521 through sliding pin 531.Gear 54 meshes with tooth bar 53, and is installed on the gear axis hole 522 through its turning cylinder 541.The stiff end of tractive steel wire rope 51 is wrapped on the gear 54 clockwise and fixes.Tractive handle 55 is installed on the locating piece 52 through turning cylinder, and its upper end 551 is connected with the contact of tooth bar 53 left ends.
Further; Shown in figure 17; Locating piece 52 also is provided with leaf spring hook 523 at the top except that tooth bar guide rail 521 and gear axis hole 522, and link up with 523 opening parts at leaf spring leaf spring limited block 524 is set; Between leaf spring hook 523 and leaf spring limited block 524, leaf spring 56 is installed, the top of leaf spring 56 lower ends and tooth bar 53 offsets.
Please cooperate and consult shown in Figure 180ly, tooth bar 53 is preferably the toothed trench structure of bilateral, and the top is provided with the projection 532 that offsets with leaf spring 56 lower ends, and is provided with the fluting 533 that the end percussion sheet with the tractive handle matches at left end.During percussion, the end of tractive handle 55 percussion sheet deeply is somebody's turn to do in the fluting 533, promotes tooth bar 53 and moves right.
Please cooperate consult shown in Figure 19; Gear 54 comprise be positioned at the outermost both sides respectively with the transmission gear piece 542 of tooth bar 53 engagement, be positioned at inboard ratchet 544 of transmission gear piece 542 and the winding groove 543 that is positioned at intermediate course, the stiff end of tractive steel wire rope 51 promptly is fastened in this winding groove 543.
In addition, auxiliary catch 57 and restoring board 58 also are installed on the locating piece 52.Restoring board 58 is through restoring board mounting groove 525 moving up and down being installed on the locating piece 52.Auxiliary catch 57 is positioned at the lower left of ratchet 544, and auxiliary catch limited step 527 is being set below the auxiliary catch turning cylinder through on the rotating auxiliary catch fixed pin holes 526 that is installed in locating piece 52 of rotational pin.One end of auxiliary catch 57 be provided with can with the coupler body of ratchet 544 engagement, can prevent the gear reversing, the cervical region of the other end and restoring board 58 offsets.
During installation, at first locating piece 52 is installed on the band cutter stiching instrument, through the turning cylinder 541 of gear and the cooperation of gear axis hole 522 gear 54 is installed again through mount pin 528.Sliding pin on the tooth bar 53 531 is advanced in the tooth bar guide rail 521, and tooth bar 53 is fixing under the combined effect of sliding pin 531 and reset tension spring.At this moment, the tooth on the tooth of tooth bar 53 right-hand members and the gear 54 transmission gear pieces 542 is meshed.
The stiff end of leaf spring 56 is inserted in the leaf spring hook 523, and leaf spring limited block 524 acts on the pressure end of leaf spring 56, makes leaf spring 56 be in compressive state, and this moment, the pressure end of leaf spring 56 was against on the projection 532 at tooth bar 53 tops.
Restoring board 58 cervical regions are installed in the restoring board mounting groove 525, and restoring board 58 can move up and down.Through being installed in the auxiliary catch fixed pin holes 526, the coupler body of auxiliary catch 57 and the pawl on the ratchet 544 are meshed at this moment with auxiliary catch 57, and the rear end is against on restoring board 58 cervical regions and the limited step 527.
During percussion, pull tractive handle 55, tractive handle 55 turns clockwise through rotating about it axle, in the left end fluting 533 of its upper end 551 precession tooth bars 53, and offsets with fluting 533 bottoms.Tractive handle 55 is further held on earth; Tractive handle upper end 551 promotes tooth bar 53 and moves right, because the tooth on the tooth bar 53 and the gear teeth on the gear 54 are meshed, tooth bar 53 driven gears 54 turn clockwise; The tooth bar 53 levels 15mm that advances; Corresponding driven gear 54 twines the fixed tractive steel wire rope 51 clockwise 15mm of winding on the groove 543, and the 15mm thereby the pulling cutter assembly is advanced realizes sewing up and cutting and organizing.
Please cooperate and consult Figure 20, shown in Figure 21; Behind the 15mm that advances in the tooth bar guide rail 521 of tooth bar 53 in level, the sliding pin 531 of tooth bar 53 front ends arrives in the closed-loop path of tooth bar guide rail 521, and the left part of tooth bar 53 then is against on the leaf spring 56; Unclamp tractive handle 55 gently; Tooth bar 53 is pulled up along the closed-loop path of tooth bar guide rail 521 under the combined effect of leaf spring 56 and reset tension spring, separates with gear 54.Simultaneously, auxiliary catch 57 catches on ratchet 544, prevents that gear 54 from separating the back reversing with tooth bar 53.Tooth bar 53 continues to advance, and under the combined effect of leaf spring 56 and reset tension spring, returns along the closed-loop path on the tooth bar guide rail 521 of level, and is pushed back original state.
When resetting, on press restoring board 58, auxiliary catch 57 is clockwise rotated, coupler body breaks away from ratchet 544, gear 54 is rotated counterclockwise, and loosens tractive steel wire rope 51, finishes the tractive state.
In addition, as shown in Figure 1, connect between cutter steel wire rope 32 and the tractive steel wire rope 51 and can connect through coupling assembling 6.Please cooperate and consult Figure 22, shown in Figure 23, this coupling assembling 6 comprises contiguous block 61, connects steel wire rope 62 and snap close fixture 63.Wherein, the profile of contiguous block 61 is preferably cube shaped, and inside is divided into left chamber 611 and right chamber 612 through interlayer.
Please cooperate consult shown in Figure 24; The cube cavity can be adopted in chamber 611, a left side; An end that connects steel wire rope 62 docks with the free end of tractive steel wire rope 51; The other end penetrates 611 inside, left chamber from contiguous block 61 left ends, and on the termination that is positioned at contiguous block 61 inside, the rectangle pushing block 621 that matches with left chamber 611 shape of cross sections is set, and between this pushing block 621 and the left chamber 611 left walls bit shift compensation spring 64 is installed.In addition, the left part in left chamber 611 also can be provided with a pair of limited step 613, is used for limiting the relative displacement distance of pushing block 621, guarantees that the preceding cutter assembly of percussion is in the initial position in the gathering sill all the time.Because when band cutter stiching instrument was closed, the closed size of jaw was 18-19mm, the nail bin groupware advances 18-19mm, therefore, the relative displacement between pushing block 621 and the contiguous block 61 is arranged between the 5-20mm, can guarantee to replenish corresponding displacement.
Right chamber 12 is preferably cylindrical cavity; Right-hand member is provided with the snap close loading hatch, and it is protruding 615 that card is set on the left wall, offers chute 614 on the sidewall; Snap close fixture 63 is installed in the right chamber 612 of contiguous block, and between snap close fixture 63 and right chamber 612 left walls, is equipped with mounting spring 65.The outer wall of snap close fixture 63 and right chamber 612 inwalls match; Right part is provided with the cavity 632 that matches with the snap close that connects the 32 free end settings of cutter steel wire rope; Left part is provided with the mounting groove 633 that coincide with mounting spring 65 external diameters, and is provided with the sliding pin 631 that leans out chute 614.Mounting spring 65 promptly through block protruding 615 and the mounting groove 633 of snap close fixture 63 install and fix.The snap close loading hatch comprises in the middle of the 612 right walls of right chamber offers the draw-in groove 616 to sidewall; And be positioned at the company's cutter Steel wire rope lock that is communicated with this draw-in groove 616 on the sidewall of right chamber and buckle into mouthfuls 617; To connect cutter steel wire rope 32 free-ended snap closes and change the snap close loading hatch over to; And through 63 lockings of snap close fixture, promptly the company's of completion cutter steel wire rope 32 was fixed with being connected of coupling assembling.
During installation; Earlier mounting spring 65 1 ends are fixed in the mounting groove 633 of snap close fixture 63; The snap close fixture 63 that will have a mounting spring 65 is installed in the right chamber 612 of fixed block, and the other end of mounting spring 65 is fixed on the card protruding 615, and the sliding pin 631 of snap close fixture 63 is installed in the right chamber chute 614; Snap close fixture 63 can move snap close fixture 63 through 631 compression or the stretching mounting spring of the sliding pins in the chute 614 to the left or to the right at this moment.
Afterwards, bit shift compensation spring 64 be installed in connect on the steel wire rope 62, again with its integral installation in chamber 611, a contiguous block left side, will have the connection steel wire rope 62 and 51 butt joints of tractive steel wire rope of pushing block 621, use aluminium alloy dog or snap close to fix.
Please cooperate and consult Figure 26, shown in Figure 27; When nail bin groupware was installed, at first manually sliding pin 631 was moved to the left snap close fixture 63 compression mounting spring 65; The free end of company's cutter steel wire rope 32 that will be connected with nail bin groupware; Laterally pushed by snap close inlet 617, until the end position that arrives draw-in groove 616, snap close is stuck in the right chamber 612 of contiguous block.This moment, the releasable catch fixture 63, and the snap close that connects on the cutter steel wire rope 32 is urged in the cavity 632 of bottom surface, snap close fixture 63 right side.
When changing nail bin, the manually right sliding pin 631 of dialling is moved to the left through snap close fixture 63 compression mounting spring 65; Used nail bin groupware is connected the snap close end of cutter steel wire rope 32, will connect cutter steel wire rope 32 along draw-in groove 616 and snap close inlet 617 and take out, thereby shift out nail bin groupware; After a while new nail bin groupware is connected the right chamber 612 of snap close propelling contiguous block of cutter steel wire rope, releasable catch fixture 63 is again at suture head; Other nail bin groupwares are installed, are promptly accomplished the replacing operation of nail bin.
During use, even cutter steel wire rope 32, connection steel wire rope 62,51, three sections flexible wire ropes of tractive steel wire rope cooperatively interact, and make propelling, draw-off mechanism can drive nail bin, cutter assembly motion.
Before band cutter stiching instrument closure, pushing block 621 is positioned at 611 right sides, chamber, a fixed block left side.Push pedal 41 promotion nail bin groupwares through propulsive mechanism 4 move forward; Reach complete closure; In this course of action, the end that connection steel wire rope 62 is positioned at outside the contiguous block 61 is fixed, and contiguous block 61 moves right under the thrust of push pedal 41; The bit shift compensation spring 64 that is positioned at left chamber 611 is compressed, and connects cutter steel wire rope 32 and travels forward in the lump with contiguous block 61.Behind the limited step 613 in pushing block 621 arrives at left chamber 611, the coupling assembling 6 integral body 18-20mm that relatively moved forward is with the cutter stiching instrument closed fully this moment.Afterwards, spur tractive steel wire rope 51, connect steel wire rope 62, further spur coupling assembling 6, connect cutter steel wire rope 32, carry out the cutting and stitching operation thereby can drive cutter assembly 3 through draw-off mechanism 5.
When resetting, press the SR of stiching instrument, apparatus is got back to original state; Jaw and separate tissue, compressed bit shift compensation spring 64 obtain restoring, and coupling assembling 6 relatively moves left; Pushing block 621 leaves limited step 613, comes back to the right side in chamber 611, a contiguous block left side.
Comprehensive, when carrying out the cutting and stitching operation, at first hold and advance handle 43; Masterpiece is used for the rotational pin of brace 44 left ends; Change it and advance angle, and then act on push pedal 41, make under the restriction of push pedal 41 sliding pin 81 on track groove 411 that it is provided with and supporting plate 42 to advance to the right.In this course of action; Tractive steel wire rope 51 is fixed; The steel wire rope 62 that is connected that is connected with it is not subjected to displacement yet; Under the effect of push pedal 41 thrusts, the pushing block 621 in the coupling assembling 6 left chambeies 611 is compression displacement counterbalance spring 64 left, and contiguous block 61 moves right with connecting cutter steel wire rope 32 in the lump.Arrive at the limited step 613 in left chamber when pushing block 621 after, the coupling assembling 6 integral body 5-20mm that relatively moves to the right, this moment, nail bin 2 was closed fully with nail supporting base 1.
Pull stiching instrument tractive handle 55 then, tractive handle 55 turns clockwise through the turning cylinder that is installed on the locating piece 52, in the fluting 533 of its precession tooth bar 53 rear ends, upper end, and offsets with fluting 533 bottoms.Tractive handle 55 is further held on earth; Under tractive handle 55 upper ends and tooth bar are slotted the moving anastomosis of 533 bottoms; Tractive handle 55 promotes tooth bar 53 and moves right, and tooth bar 53 driven gears 54 turn clockwise, and under the effect of leaf spring 56; The tooth bar 53 levels 15mm that advances, fixed tractive steel wire rope 51 twines 15mm clockwise on the corresponding driven gear 54.
Under the action of traction of tractive steel wire rope 51, cutting knife slide block 31 slides to the right along the gathering sill of guide plate 33 initial end, and cutting knife 311 stretches out nail bin 2 surfaces, and when arriving left flex point, cutting knife exposes fully.Further pull tractive handle 55; Cutting knife slide block 31 cooperates linear slide through alignment pin 314 in gathering sill 331, percussion components drive pushing slice of nail, pushing slice of nail are released the seam nail and made it and be closed into " B " font; Simultaneously, cutting knife cuts and organizes along the stitching thread direction in proper order.When arriving to the right flex point, cutting knife slide block 31 continues to slide, and cutting knife is rotated counterclockwise, and cutter head is hidden in the nail bin 2, and the distance that this moment, cutter assembly slided in gathering sill is 15mm.
When tooth bar 53 was advanced 15mm in horizontal guide rail grooves after, tooth bar 53 front end sliding pins arrived in the guide-track groove loop trough, and tooth bar 53 ends just are against on the leaf spring 56.Unclamp tractive handle 55 gently, tooth bar 53 is pulled up along the gathering sill loop under the combined effect of leaf spring 56 and reset tension spring, separates with gear 54.Simultaneously, auxiliary catch 57 catches on ratchet 544, prevents that gear 54 from separating the back reversing with tooth bar 53.When tooth bar 53 advanced to back segment, under the combined effect of leaf spring 56 and reset tension spring, along another loop notch, tooth bar 53 front end sliding pins were got back on the horizontal guide slot, have been forced into original state.
The above; It only is the preferred embodiment of this utility model; Be not that this utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of this utility model.
Claims (10)
1. a band cutter stiching instrument is characterized in that comprising supporting plate, nail supporting base, nail bin, cutter assembly, propulsive mechanism and draw-off mechanism, wherein:
Propulsive mechanism and draw-off mechanism are installed on the supporting plate;
Propulsive mechanism is connected with nail bin;
Cutter assembly is installed in the nail bin inner chamber, comprises the cutting knife slide block and connects the cutter steel wire rope;
Draw-off mechanism comprises the tractive steel wire rope, and the tractive steel wire rope is connected with the free end that connects the cutter steel wire rope.
2. a kind of band cutter stiching instrument according to claim 1; It is characterized in that the described free end that connects the cutter steel wire rope is provided with snap close; The tractive steel wire rope with connect the cutter steel wire rope and be connected through coupling assembling, this coupling assembling comprises contiguous block, connection steel wire rope and snap close fixture, wherein:
Contiguous block inside is divided into left chamber and right chamber through interlayer;
An end that connects steel wire rope dock with the free end of tractive steel wire rope, and the other end penetrates left intracavity portion from the contiguous block left end, and on the termination that is positioned at contiguous block inside, pushing block is set, and between the left wall in this pushing block and left chamber the bit shift compensation spring is installed;
The snap close fixture is installed in the right intracavity of contiguous block, and right chamber right-hand member is provided with the snap close loading hatch, and between snap close fixture and a left side, right chamber wall, is equipped with mounting spring, and the snap close that connects the cutter steel wire rope is installed in the right intracavity of contiguous block of steel wire rope coupling assembling.
3. a kind of band cutter stiching instrument according to claim 2 is characterized in that offering chute on the right chamber sidewall of described contiguous block;
Described snap close fixture outer wall and right cavity wall match, and are provided with the sliding pin that leans out right chamber chute, and snap close fixture right part is provided with the cavity that matches with the snap close that connects the cutter steel wire rope;
The snap close loading hatch comprises in the middle of the right wall in right chamber offers the draw-in groove to sidewall, and is positioned at the company's cutter Steel wire rope lock that is communicated with this draw-in groove on the sidewall of right chamber and buckles into mouth.
4. a kind of band cutter stiching instrument according to claim 1 is characterized in that described cutter assembly also comprises guide plate and fixed block, wherein:
Center, cutting knife slide block left side is provided with cutting knife, and both sides are provided with the percussion sheet before and after the cutting knife, and the percussion sheet extends to form location-plate left, and the location-plate outside is provided with alignment pin, and the location-plate inboard is provided with the steel wire rope mounting blocks, and the steel wire rope mounting blocks offers installing hole along the cutting knife direction;
The stiff end that connects the cutter steel wire rope passes said installing hole and fixing;
Offer the gathering sill corresponding with said alignment pin on the guide plate, said cutting knife slide block slidably is installed between two guide plates through alignment pin;
Fixed block is installed in the left side of guide plate, cutting knife slide block.
5. a kind of band cutter stiching instrument according to claim 4; It is characterized in that described each location-plate outside is equipped with two alignment pins; Correspondence is provided with two gathering sills on each guide plate; Article two, gathering sill is parallel in cut length, and is being provided with flex point left near the initial end place, and the gathering sill that is positioned at the left side also is provided with flex point to the right at clearing end;
Described fixed block right side central is provided with the cutting knife chute; Both sides are the guide plate installation step before and after the cutting knife chute; The initial end of fixed block is provided with and the turn left dislocation step of structure matching of guide plate; Clearing end is provided with block, and on block, offers the steel wire rope locating hole, and the described cutter steel wire rope that connects passes from this locating hole.
6. a kind of band cutter stiching instrument according to claim 4; The lower left that it is characterized in that described fixed block is provided with safety block; The safety block left side is provided with leaf spring, and safety block inside is provided with the wind spring that resets, and the free end of the wind spring that resets is fixedly connected with the company cutter steel wire rope termination at installing hole place through tightrope; The link of wind spring and tightrope of resetting is stuck in the left and right directions groove of safety block, and is provided with and the corresponding projection of safety block right positions in the band cutter stiching instrument jaw lower right corner.
7. a kind of band cutter stiching instrument according to claim 1 is characterized in that described draw-off mechanism also comprises locating piece, tooth bar, gear and tractive handle, wherein:
Locating piece is fixedly connected with supporting plate, and inner chamber is provided with the tooth bar guide rail, and tooth bar guide rail below is provided with the gear axis hole, and the right section of tooth bar guide rail forms the closed-loop path;
The tooth bar left end is connected with reset tension spring, and is installed on the tooth bar guide rail through sliding pin;
Wheel and rack meshes, and is installed on the gear axis hole through its turning cylinder;
The stiff end of tractive steel wire rope is wrapped on the gear clockwise and fixes;
The tractive handle is installed on the supporting plate through turning cylinder, and its upper end is connected with the contact of tooth bar left end.
8. a kind of band cutter stiching instrument according to claim 7; It is characterized in that described tooth bar top is provided with projection; Top of chamber is provided with the leaf spring hook in the locating piece; And be provided with the leaf spring limited block at leaf spring hook opening part, and between leaf spring hook and leaf spring limited block, leaf spring being installed, the projection at leaf spring lower end and tooth bar top offsets.
9. a kind of band cutter stiching instrument according to claim 7 is characterized in that:
Described tooth bar is the toothed trench structure of bilateral;
Described gear comprise be positioned at the outermost both sides respectively with the transmission gear piece of tooth bar engagement, be positioned at inboard ratchet of transmission gear piece and the winding groove that is positioned at intermediate course, the stiff end of tractive steel wire rope is fastened in this winding groove;
Described locating piece inner chamber also is equipped with rotating auxiliary catch and restoring board moving up and down; And below the auxiliary catch turning cylinder, be provided with the auxiliary catch limited step; Auxiliary catch is positioned at the lower left of gear ratchet; The one of which end be provided with can with the coupler body of ratchet engaged, the cervical region of the other end and restoring board offsets.
10. a kind of band cutter stiching instrument according to claim 1 is characterized in that described supporting plate is provided with sliding pin, and described propulsive mechanism comprises:
Promote the push pedal of nail bin, offer the corresponding also track groove of horizontal expansion of sliding pin in the push pedal with supporting plate;
The propelling hands handle hinged with supporting plate; And
Respectively with the brace that advances handle upper end, push pedal left end to be rotationally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220034157 CN202515712U (en) | 2012-02-03 | 2012-02-03 | Suturing instrument with knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220034157 CN202515712U (en) | 2012-02-03 | 2012-02-03 | Suturing instrument with knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202515712U true CN202515712U (en) | 2012-11-07 |
Family
ID=47098688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220034157 Expired - Fee Related CN202515712U (en) | 2012-02-03 | 2012-02-03 | Suturing instrument with knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202515712U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551827A (en) * | 2012-02-03 | 2012-07-11 | 北京中法派尔特医疗设备有限公司 | Stitching instrument with cutter |
| CN104107077A (en) * | 2014-07-09 | 2014-10-22 | 苏州天臣国际医疗科技有限公司 | Anastomat and nail bin assembly used for anastomat |
| CN105342655A (en) * | 2015-10-21 | 2016-02-24 | 泰戈斯医疗器械（江苏）有限公司 | Cutting stapler |
| CN112690848A (en) * | 2020-12-25 | 2021-04-23 | 苏州法兰克曼医疗器械有限公司 | Novel anastomat with safety function |
-
2012
- 2012-02-03 CN CN 201220034157 patent/CN202515712U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551827A (en) * | 2012-02-03 | 2012-07-11 | 北京中法派尔特医疗设备有限公司 | Stitching instrument with cutter |
| CN102551827B (en) * | 2012-02-03 | 2014-02-05 | 北京中法派尔特医疗设备有限公司 | Stitching instrument with cutter |
| CN104107077A (en) * | 2014-07-09 | 2014-10-22 | 苏州天臣国际医疗科技有限公司 | Anastomat and nail bin assembly used for anastomat |
| CN104107077B (en) * | 2014-07-09 | 2016-08-24 | 苏州天臣国际医疗科技有限公司 | Stapler and the nail bin groupware for this stapler |
| CN105342655A (en) * | 2015-10-21 | 2016-02-24 | 泰戈斯医疗器械（江苏）有限公司 | Cutting stapler |
| CN112690848A (en) * | 2020-12-25 | 2021-04-23 | 苏州法兰克曼医疗器械有限公司 | Novel anastomat with safety function |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20140203 |