CN102551828B - Stitching instrument with cutter and cutter component of stitching instrument with cutter - Google Patents
Stitching instrument with cutter and cutter component of stitching instrument with cutter Download PDFInfo
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- CN102551828B CN102551828B CN2012100237234A CN201210023723A CN102551828B CN 102551828 B CN102551828 B CN 102551828B CN 2012100237234 A CN2012100237234 A CN 2012100237234A CN 201210023723 A CN201210023723 A CN 201210023723A CN 102551828 B CN102551828 B CN 102551828B
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- cutting knife
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Abstract
The invention relates to a stitching instrument with a cutter and a cutter component of the stitching instrument with the cutter. The cutter component comprises a cutter slider, a cutter connecting steel wire rope, guiding plates and a fixing block; the cutter slider is provided with the cutter, a triggering plate, a positioning plate, positioning pins, a steel wire rope mounting block and a mounting hole; one end of the cutter connecting steel wire rope penetrates through the mounting hole and is fixed; each guiding plate is provided with a guiding groove, the guiding grooves correspond to the positioning pins, and the cutter slider is slidably mounted between the two guiding plates via the positioning pins; and the fixing block is mounted below the guiding plates and the cutter slider. The cutter component of the stitching instrument with the cutter is mounted in an inner cavity of a nail bin, and the cutter connecting steel wire rope of the cutter component is connected with a traction mechanism. The stitching instrument with the cutter is applicable to the nail bin with the small longitudinal space, and is simple in structure, convenient in assembly and safe in use. The triggering force of the stitching instrument is low, stitching nails are formed well, stitching and cutting actions are simultaneously realized by the effect of tension of the traction mechanism, the cutting direction of the stitching instrument is parallel to the direction of a stitching thread, and accordingly the stitching instrument is more applicable to popularization and application.
Description
Technical field
The present invention relates to a kind of surgical operation medical apparatus and instruments, particularly relate to a kind of band cutter stiching instrument and cutter assembly thereof.
Background technology
In surgical operation, medical suturing instrument has become the requisite medical assistance apparatus in the tissue sewing process.Along with development and the research and development of products of medical science, more and more multi-functional staple series products is applied to clinical, and the scope of application has related to the every field such as gastrointestinal surgery, Genneral Surgery, thoracic surgery, Urology Surgery, gynecological, becomes one of requisite instrument of doctor.The application of medical suturing instrument have in operation hemorrhage less, operating time is shorter, can reduce error hand-manipulated, avoid infection, postoperative function recovers the plurality of advantages such as fast.
In medical suturing instrument, a kind of product commonly used is line cutting stitching instrument, is mainly used in the opening of sewing up cavity tissue, sews up mouth neatly and very firm, is not easy to occur the stitching stomatorrhagia.Initial Linear stapler only has the function of stitching, after tissue apposition, 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 stitching thread, and then causes line of cut irregular, and the risk that leakage blood occurs is very big.
Therefore, be directed to the operation of human body privileged sites, developed the direct stiching instrument with cutter, for example Johson & Johnson produces triumphant way, it has made up the shortcoming of Linear stapler to a certain extent, can complete the action of sewing up and cutting, and the apparatus bar is longer simultaneously, be provided with handle and trigger, facilitate the doctor to operate, than the traditional line stiching instrument, this apparatus can be saved doctor's operating time greatly, reduce amount of bleeding, improve success rate of operation.
But, the existing class of the stiching instrument with cutting knife apparatus, all on the basis of original Linear stapler, fix a cutting knife in the middle of two row's suturing nails, 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, by moment longitudinally 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 to require great effort while cutting and organizing, and cut edge is irregular, and staple easily tilts to the direction of cutting knife, causes the staple molding poor, sews up the defects such as mouthful leakiness.
As can be seen here, above-mentioned existing band cutter stiching instrument and cutter assembly thereof, in structure and use, obviously still have inconvenience and defect, and urgently are further improved.How to found better new band cutter stiching instrument and cutter assembly thereof of the less and staple molding of a kind of percussion force, real one of the current important research and development problem that belongs to.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of band cutter stiching instrument and cutter assembly thereof, makes that the percussion force of its apparatus is less and the staple molding is better, thereby overcomes the existing deficiency with cutter stiching instrument and cutter assembly thereof.
For solving the problems of the technologies described above, a kind of cutter assembly with the cutter stiching instrument of the present invention, comprise the cutting knife slide block, connect cutter steel wire rope, guide plate and fixed block, wherein: center, cutting knife slide block top is provided with cutting knife, the cutting knife both sides are provided with the percussion sheet, and the percussion sheet extends to form location-plate downwards, 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 cutting knife slide block fore-and-aft direction; Connecting the cutter steel wire rope is flexible wire ropes, and the one end is through described installing hole fixing; Offer the gathering sill corresponding with described alignment pin on guide plate, described cutting knife slide block slidably is arranged between two guide plates by alignment pin; Fixed block is arranged on the below of guide plate, cutting knife slide block.
As a modification of the present invention, described each location-plate outside is equipped with two alignment pins, and on each guide plate, correspondence is provided with two gathering sills.
Described two gathering sills are parallel in cut length, and are being provided with downward flex point near the initial end place, and the gathering sill that is positioned at below also is provided with upwards flex point at clearing end.
Described fixed block middle part is provided with the cutting knife chute, cutting knife chute both sides are the guide plate installation step, the initial end of fixed block be provided with guide plate under turn the Steps of structure matching, clearing end is provided with block, and offer the steel wire rope locating hole on block, the described cutter steel wire rope that connects passes from this locating hole.
Described fixed block both sides of the edge also are provided with more than two pairs installs card convex.
The lower right of described fixed block is provided with safety block, the safety block below 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 company's cutter steel wire rope end head at installing hole place by tightrope, and the link of reset wind spring and tightrope is stuck in the above-below direction groove of safety block.
A described end that connects the cutter steel wire rope is fixedly connected with by aluminium alloy dog or snap close with the cutting knife slide block.
The cutting knife of described cutting knife slide block, percussion sheet are epsilon-type structure.
Described cutting knife is one-sided arc knife face.
The present invention also provides a kind of band cutter stiching instrument, comprise nail supporting base, nail bin, propulsive mechanism, draw-off mechanism and above-mentioned cutter assembly, wherein, described cutter assembly is arranged in the nail bin inner chamber, and company's cutter steel wire rope of cutter assembly is connected with propulsive mechanism, draw-off mechanism.
After adopting such design, the invention provides a kind of line cutting stitching instrument with sliding cutter, be applicable to the nail bin in vertical little space, it is simple in structure, easy to assembly, use safety, little and the staple forming of the percussion force of stiching instrument under the pulling force effect 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.
The accompanying drawing explanation
Above-mentioned is only the general introduction of technical solution of the present invention, and in order to better understand technological means of the present invention, below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail.
Fig. 1 is the cutting knife slide block structure schematic diagram of cutter assembly of the present invention.
Fig. 2 is the cutting knife slide block of cutter assembly of the present invention and connects cutter steel wire rope combinative structure schematic diagram.
Fig. 3 is the guide board structure schematic diagram of cutter assembly of the present invention.
Fig. 4 is the fixed-block-architecture (FBA) schematic diagram of cutter assembly of the present invention.
Fig. 5 is the safety block of cutter assembly of the present invention, the wind spring that resets, leaf spring, tightrope structural representation.
Fig. 6 is the structural representation of band cutter stiching instrument of the present invention.
Fig. 7 is the nail bin structural representation of band cutter stiching instrument of the present invention.
Fig. 8 is the nail bin inner chamber sectional structure schematic diagram of band cutter stiching instrument of the present invention.
Fig. 9 is cutting knife slide block, steel wire rope and the fixed block combination schematic diagram of cutter assembly of the present invention.
Figure 10 is the combination schematic diagram of half nail bin of the present invention and guide plate, cutting knife slide block, fixed block.
Figure 11 is guide plate and cutting knife slide block in Fig. 9, the combination scheme of installation that connects the cutter steel wire rope.
Figure 12 is the combination scheme of installation of guide plate and fixed block in Fig. 9.
Figure 13 is the view of the present invention's cutting knife slide block before percussion.
Figure 14 is the view of the present invention's cutting knife slide block in the cutting and stitching process.
Figure 15 is the view of the present invention's cutting knife slide block when cutting completes.
Figure 16 is the rollover states schematic diagram of the present invention's cutting knife slide block after cutting completes.
The specific embodiment
A kind of cutter assembly with the cutter stiching instrument of the present invention, comprise cutting knife slide block 31, connect cutter steel wire rope 32, guide plate 33 and fixed block 34.
Wherein, refer to shown in Fig. 1, cutting knife slide block 31 centers, top are provided with cutting knife 311, cutting knife 311 both sides are provided with percussion sheet 312, percussion sheet 312 extends to form location-plate 313 downwards, 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 cutting knife slide block 31 fore-and-aft directions.
Preferably, as shown in the figure, cutting knife slide block 31 structure that is formed in one.Cutting knife 311 can be selected one-sided arc knife face.Percussion sheet 312 can adopt polygonized structure, plays a part 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 " character form structure.
Please coordinate and consult shown in Fig. 2, connecting cutter steel wire rope 32 is flexible wire ropes, and the one end passes the installing hole 315 of cutting knife slide block 31, and fixes in modes such as aluminium alloy dog, snap closes.
Please coordinate and consult shown in Fig. 3, offer the gathering sill corresponding with the alignment pin 314 of cutting knife slide block 31 331 on guide plate 33, cutting knife slide block 31 slidably is arranged between two guide plates 33 by alignment pin 314.
Preferably, as shown in Figure 1, Figure 3, each location-plate 313 outside of cutting knife slide block 31 are equipped with two alignment pins 314, on each guide plate 33, correspondence is provided with two gathering sills 331, article two, gathering sill 331 is parallel to each other in cut length, and being provided with downward flex point 332 near the initial end place, the gathering sill that is positioned at below also is provided with upwards flex point 333 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, can make cutter assembly 31 be hidden in fully in nail bin before percussion downwards, and cutter does not leak outside.Upwards the setting of flex point 333, make cutter assembly 31 after cutting completes, and can rotate counterclockwise, thereby the cutting knife cutter head is hidden in nail bin again.
Please coordinate and consult shown in Fig. 4, fixed block 34 is arranged on the below of guide plate 33 and cutting knife slide block 31.Fixed block 34 main bodys are slab construction, upper surface middle part is provided with cutting knife chute 341, cutting knife chute 341 both sides are guide plate installation step 342, the initial end of fixed block 34 is provided with the Steps 343 that turns structure matching with guide plate for 33 times, clearing end is provided with block 344, and be provided with and vertical boss corresponding with cutting knife chute 341 on block 344, and offer steel wire rope locating hole 345 in the groove between this boss, for connecting cutter steel wire rope 32, from this locating hole 345, pass.In addition, fixed block 34 both sides of the edge also are horizontally arranged with more than two pairs installs card convex 346, is preferably three pairs, and in the bottom of fixed block 34, the wind spring that resets is set, and is used for the cutter assembly that resets.
In addition, please coordinate and consult shown in Fig. 5, the lower right of fixed block 34 also can arrange safety block 36, safety block 36 belows are provided with leaf spring 37, safety block 36 inside are provided with the wind spring 35 that resets, the free end of wind spring 35 of resetting is fixedly connected with company's cutter steel wire rope 32 terminations at installing hole 316 places by tightrope 38, and the wind spring 35 that resets is stuck in the above-below direction groove of safety block 36 with the link of tightrope 38.
Refer to shown in Fig. 6, a kind of band cutter of the present invention stiching instrument, comprise nail supporting base 1, nail bin 2, propulsive mechanism, draw-off mechanism and cutter assembly of the present invention 3.Wherein, cutter assembly 3 is arranged in the inner chamber of nail bin 2, and company's cutter steel wire rope 32 of cutter assembly 3 is connected with propulsive mechanism, draw-off mechanism.
Specifically, please coordinate and consult shown in Fig. 7, Fig. 8, the chamber body of nail bin 2 is mainly used to install pushing slice of nail and cutter assembly 3, be provided with nail hole 21 and pushing slice of nail mounting groove 22 in pushing slice of nail installation cavity part, the cutter assembly installation cavity partly is mainly used to install cutting knife slide block 31, guide plate 33 and fixed block 34.
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 lower ends, be respectively equipped with the guide plate mounting groove 23 identical with guide plate 33 shapes in nail bin 2 both sides, the thickness of guide plate mounting groove 23 is identical with the width of above-mentioned limited step 24, nail bin 2 both sides also are provided with fixed block draw-in groove 25 are installed simultaneously, are used for coordinating with the installation card convex 346 of fixed block 34 installation fixed block 34.The pin-and-hole of wind spring 35 by the nail bin both sides that reset is arranged in nail bin 2, leaf spring 37 is fixed on nail bin 2 inside and offsets with safety block 36 bottoms, safety block 36 can move up and down in nail bin 2, and with the cutter stiching instrument jaw lower right corner, the projection corresponding with safety block 36 tip positions is being set.
During installation, please coordinate and consult shown in Fig. 9, at first will connect cutter steel wire rope 32 1 ends through the locating hole 345 on fixed block baffle plate 344, then, further through the installing hole 316 on cutting knife slide block steel wire rope mounting blocks 315, use aluminium alloy dog or snap close to be fixed.
Afterwards, please coordinate and consult shown in Figure 10-12, a guide plate 33 is arranged in the guide plate mounting groove 23 of a side nail bin 2, guide plate 33 upper ends are against on the limited step 24 of cutting knife gathering sill 26 inboards.Again two alignment pins 314 on cutting knife slide block 31 are pushed respectively to the initial end of 33 two gathering sills 331 of guide plate, and the installation card convex of fixed block 34 1 sides 346 is inserted in the fixed block installation draw-in groove 25 of nail bin 2, thereby fixed block 34 is fixedly mounted in nail bin 2.
Now, guide plate 33 vertically is stuck on the guide plate installation step 342 of fixed block 34, under the limited step 24 of nail bin, the clearing end vertical plane of guide plate 33 and the block 344 of fixed block 34 match, and the Steps 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 finally uses the same method is installed opposite side guide plate 33 and second half nail bin 2, completes the installation of band cutter stiching instrument nail bin groupware of the present invention.
Please coordinate and consult shown in Figure 13-16, before percussion, cutting knife slide block 31 is positioned on the Steps 343 of fixed block 34 initial end, and whole cutting knife slide block 31 is embedded in nail bin 2, and cutter does not leak outside.When nail bin 2 and nail supporting base 1 are closed, press down safety block 36 with the projection in the cutter stiching instrument jaw lower right corner, make the wind spring 36 that resets break away from safety block 36 with the groove of the link self-protective piece 36 of tightrope 38.Under the traction action of draw-off mechanism and company's cutter steel wire rope 32, cutting knife slide block 31 slides along the gathering sill 331 on both sides guide plate 33, and when arriving downward flex point 332, cutting knife 311 stretches out the surface of nail bin 2.Further tractive, cutting knife slide block 31 is by alignment pin 314 in the interior cooperation linear slide of gathering sill 331, and percussion sheet 312 promotes pushing slice of nail, and further releases staple and make it be closed into " B " font, and simultaneously, cutting knife 311 sequentially cuts and organizes along the stitching thread direction.When arrival makes progress flex point 333, cutting knife slide block 31 is rotated counterclockwise, and cutter head is hidden in nail bin 2.
The above; it is only preferred embodiment of the present invention; not the present invention is done to 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 protection scope of the present invention.
Claims (10)
1. the cutter assembly with the cutter stiching instrument, is characterized in that comprising the cutting knife slide block, connect cutter steel wire rope, guide plate and fixed block, wherein:
Center, cutting knife slide block top is provided with cutting knife, the cutting knife both sides are provided with the percussion sheet, and the percussion sheet extends to form location-plate downwards, 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 cutting knife slide block fore-and-aft direction;
Connecting the cutter steel wire rope is flexible wire ropes, and the one end is through described installing hole fixing;
Offer the gathering sill corresponding with described alignment pin on guide plate, described cutting knife slide block slidably is arranged between two guide plates by alignment pin;
Fixed block is arranged on the below of guide plate, cutting knife slide block.
2. a kind of cutter assembly with the cutter stiching instrument according to claim 1, is characterized in that described each location-plate outside is equipped with two alignment pins, and on each guide plate, correspondence is provided with two gathering sills.
3. a kind of cutter assembly with the cutter stiching instrument according to claim 2, is characterized in that described two gathering sills are parallel in cut length, and be provided with downward flex point near the initial end place, and the gathering sill that is positioned at below also is provided with upwards flex point at clearing end.
4. a kind of cutter assembly with the cutter stiching instrument according to claim 3, it is characterized in that described fixed block middle part is provided with the cutting knife chute, cutting knife chute both sides are the guide plate installation step, the initial end of fixed block be provided with guide plate under turn the Steps of structure matching, clearing end is provided with block, and offer the steel wire rope locating hole on block, the described cutter steel wire rope that connects passes from this locating hole.
5. a kind of cutter assembly with the cutter stiching instrument according to claim 4, is characterized in that described fixed block both sides of the edge also are provided with more than two pairs card convex is installed.
6. a kind of cutter assembly with the cutter stiching instrument according to claim 1, the lower right that it is characterized in that described fixed block is provided with safety block, the safety block below 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 company's cutter steel wire rope end head at installing hole place by tightrope, and the link of reset wind spring and tightrope is stuck in the above-below direction groove of safety block.
7. a kind of cutter assembly with the cutter stiching instrument according to claim 1, is characterized in that a described end that connects the cutter steel wire rope is fixedly connected with by aluminium alloy dog or snap close with the cutting knife slide block.
8. a kind of cutter assembly with the cutter stiching instrument according to claim 1, is characterized in that the cutting knife of described cutting knife slide block, percussion sheet are epsilon-type structure.
9. a kind of cutter assembly with the cutter stiching instrument according to claim 1, is characterized in that described cutting knife is one-sided arc knife face.
10. a band cutter stiching instrument, it is characterized in that comprising the described cutter assembly of any one in nail supporting base, nail bin, propulsive mechanism, draw-off mechanism and claim 1-9, wherein, described cutter assembly is arranged in the nail bin inner chamber, and company's cutter steel wire rope of cutter assembly is connected with propulsive mechanism, draw-off mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100237234A CN102551828B (en) | 2012-02-03 | 2012-02-03 | Stitching instrument with cutter and cutter component of stitching instrument with cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100237234A CN102551828B (en) | 2012-02-03 | 2012-02-03 | Stitching instrument with cutter and cutter component of stitching instrument with cutter |
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| Publication Number | Publication Date |
|---|---|
| CN102551828A CN102551828A (en) | 2012-07-11 |
| CN102551828B true CN102551828B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100237234A Active CN102551828B (en) | 2012-02-03 | 2012-02-03 | Stitching instrument with cutter and cutter component of stitching instrument with cutter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112123379B (en) * | 2020-10-28 | 2022-02-01 | 河南省人民医院 | Skin preparation nursing device before ophthalmology art |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201767999U (en) * | 2010-06-24 | 2011-03-23 | 北京中法派尔特医疗设备有限公司 | Disposable cutting stitching instrument |
| CN102228386A (en) * | 2010-09-16 | 2011-11-02 | 北京中法派尔特医疗设备有限公司 | Forceps opening assembly with guiding structure and stitching instrument adopting forceps opening assembly |
| CN202477765U (en) * | 2012-02-03 | 2012-10-10 | 北京中法派尔特医疗设备有限公司 | Stitching instrument with cutter and cutter assembly thereof |
-
2012
- 2012-02-03 CN CN2012100237234A patent/CN102551828B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201767999U (en) * | 2010-06-24 | 2011-03-23 | 北京中法派尔特医疗设备有限公司 | Disposable cutting stitching instrument |
| CN102228386A (en) * | 2010-09-16 | 2011-11-02 | 北京中法派尔特医疗设备有限公司 | Forceps opening assembly with guiding structure and stitching instrument adopting forceps opening assembly |
| CN202477765U (en) * | 2012-02-03 | 2012-10-10 | 北京中法派尔特医疗设备有限公司 | Stitching instrument with cutter and cutter assembly thereof |
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| CN102551828A (en) | 2012-07-11 |
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