CN102657544B - Stitching instrument and jaw assembly thereof - Google Patents
Stitching instrument and jaw assembly thereof Download PDFInfo
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- CN102657544B CN102657544B CN201210135897.XA CN201210135897A CN102657544B CN 102657544 B CN102657544 B CN 102657544B CN 201210135897 A CN201210135897 A CN 201210135897A CN 102657544 B CN102657544 B CN 102657544B
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- supporting base
- nail supporting
- guide plate
- nail
- jaw
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Abstract
The invention relates to a stitching instrument and a jaw assembly thereof. The jaw assembly is characterized by comprising a jaw support, a nail pushing seat, a guide plate and a plug; the jaw support is provided with a nail pushing seat mounting cavity, a guide plate mounting hole and a hook-like structure; the nail pushing seat is provided with a poisoning needle hole and a limiting hole; the right part of the guide plate penetrates through the limiting hole of the nail pushing seat, the left part of the guide plate is positioned in the guide plate mounting hole of the jaw support, and the middle part of the guide plate is provided with a clamping groove which is as wide as the upper edge of the limiting hole of the nail pushing seat; and the nail pushing seat is arranged in the nail pushing seat mounting cavity of the jaw support, and the guide plate limits the left and right positions of the nail pushing seat through the clamping groove and is fixed in the guide plate mounting hole of the jaw support through the plug. The stitching instrument comprises a nail bin, a propelling mechanism and the jaw assembly. The jaw of the stitching instrument is light and high in strength, a stitching nail is well formed, and the stitching instrument is good in sense of wholeness, so that the stitching instrument is suitable to be widely popularized and used.
Description
Technical field
The present invention relates to a kind of medical suturing instrument, particularly relate to a kind of stiching instrument and jaw assembly thereof.
Background technology
Medical suturing instrument is the medical apparatus and instruments that carries out broken ends of fractured bone connection for digestive tract tissue, its have simple to operate, can effectively shorten operating time, and be significantly superior to the features such as manual suture effect, thereby more and more obtain doctor and patient's approval.
At present, the nail supporting base of medical suturing instrument is all fixed on jaw, interfixes, and utilize rivet to rivet by two of front and back panel beating and a middle working of plastics.But find in practice, there is following defect in above-mentioned existing this structure and fixing means:
1, very high to the dimension precision requirement of the mating parts such as nail supporting base, clamping plate, the molding of the excessive staple of error is unstable;
2, riveting process also can produce certain impact to the installation site of nail supporting base, and this is also to cause one of unsettled reason of staple molding;
3, use the method for the fixing nail supporting base of clamping plate also can make the head (jaw) of apparatus overweight, the apparatus of large model is especially serious, causes doctor's inconvenient operation.
As can be seen here, above-mentioned existing stiching instrument, in structure and use, obviously still has inconvenience and defect, and is urgently further improved.How to found that a kind of jaw is light and handy and intensity is high, staple molding is good, and apparatus associative perception is new stiching instrument and jaw assembly thereof better, one of real important research direction that belongs to current this area.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of stiching instrument and jaw assembly thereof, makes that its jaw is light and handy and intensity is high, and staple molding is good, and apparatus associative perception is better, thereby overcomes the deficiency of existing stiching instrument.
For solving the problems of the technologies described above, the jaw assembly of a kind of stiching instrument of the present invention, comprises jaw support, nail supporting base, guide plate and plug, wherein: the left inside side of jaw support is provided with nail supporting base installation cavity, lower left is provided with guide plate installing hole, and is provided with hook formation on nail supporting base installation cavity top; Nail supporting base one end is provided with location pin hole, and the other end is provided with spacing hole; Guide plate right part is through the spacing hole of nail supporting base, and left part is positioned at the guide plate installing hole of jaw support, middle part be provided with nail supporting base spacing hole on along the suitable draw-in groove of width; Nail supporting base is arranged in the nail supporting base installation cavity of jaw support, and guide plate limits the position, left and right of nail supporting base by draw-in groove, and is fixed on by plug in the guide plate installing hole of jaw support.
As a modification of the present invention, the nail supporting base installation cavity of described jaw support is slightly larger than nail supporting base.
Described nail supporting base cross section takes the shape of the letter U, and in the U-lag of nail supporting base, backing plate is installed.
Described backing plate is provided with the hole corresponding with location pin hole, the spacing hole of nail supporting base, and connects and fixes by protruding, groove structure and nail supporting base.
Described jaw support is integral type structure.
Described plug is for closely L shaped, and is provided with card convex at upper and lower end, is provided with fin in side, and the guide plate installing hole inwall of jaw support is provided with and described card convex, groove that fin is corresponding.
Described jaw support adopts aluminum alloy material.
Described guide plate is plastic material, and described plug adopts elastic material.
In addition, the present invention also provides a kind of stiching instrument, comprises nail bin, propulsive mechanism and above-mentioned jaw assembly, wherein: propulsive mechanism is slidably arranged on jaw support, and nail bin is fixedly connected with pushing mechanism; Nail bin upper end is provided with the needle outlet corresponding with nail supporting base location pin hole, and lower end is provided with the locating dowel that can insert nail supporting base spacing hole, and above locating dowel, is provided with the jack corresponding with guide plate right-hand member.
As further improvement, described nail bin is also provided with spacing preiection above needle outlet.
Adopt after such design, the jaw of stiching instrument of the present invention is light and handy, and stiching instrument jaw intensity is high, staple forming, and apparatus associative perception is better, thereby is more suitable for extensively promoting the use of.
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 structural representation of the jaw assembly of stiching instrument of the present invention.
Fig. 2 is the jaw supporting structure schematic diagram of the jaw assembly of stiching instrument of the present invention.
Fig. 3 is the nail supporting base structural representation of the jaw assembly of stiching instrument of the present invention.
Fig. 4 is the guide board structure schematic diagram of the jaw assembly of stiching instrument of the present invention.
Fig. 5 is the stopper structure schematic diagram of the jaw assembly of stiching instrument of the present invention.
Fig. 6 is the backing structure schematic diagram of the jaw assembly of stiching instrument of the present invention.
Fig. 7 is the structural representation of stiching instrument of the present invention.
Fig. 8 is the nail bin structural representation of stiching instrument of the present invention.
The specific embodiment
Refer to shown in Fig. 1, the jaw assembly of stiching instrument of the present invention comprises jaw support 1, nail supporting base 2, guide plate 3 and plug 4.
Wherein, shown in Fig. 2, the preferred Integral aluminum alloy structure of jaw support 1 of the present invention, its left inside side is provided with nail supporting base installation cavity 11, and lower left is provided with guide plate installing hole 12, and is provided with hook formation 13 on nail supporting base installation cavity top.Preferably, nail supporting base installation cavity 11 is slightly larger than nail supporting base 2.
Shown in Fig. 3, the surface of nail supporting base 2 of the present invention is provided with to nail groove 23, and is at one end provided with location pin hole 21, and the other end is provided with spacing hole 22.When nail supporting base 2 is thicker, for example thickness, in the time of 0.8mm～10mm, can be directly assembled on jaw support.
When nail supporting base 2 is thinner, for example, when thickness is between 0.1mm～0.8mm, consider the intensity of apparatus, can in assembly, increase nail supporting base backing plate 5 and support.Please coordinate please refer to shown in Fig. 3, Fig. 4, now, the cross section of nail supporting base 2 can take the shape of the letter U, and backing plate 5 is arranged in the U-lag of nail supporting base 2.Specifically, nail supporting base 2 is provided with at least two pairs of small embossments 24 on its U-lag inwall, backing plate 5 is provided with the hole corresponding with location pin hole 21, the spacing hole 22 of nail supporting base 51,52, and be provided with the groove corresponding with small embossment 24 54, by realizing small embossment 24 and coordinating of groove 54 being fixedly connected with of backing plate 5 and nail supporting base 2.
Shown in Fig. 5, guide plate 3 can adopt plastic material, and its right part can be through the spacing hole 22 of nail supporting base, and left part is positioned at the guide plate installing hole 12 of jaw support, middle part be provided with nail supporting base spacing hole 22 on along the suitable draw-in groove 31 of width.
Shown in Fig. 6, the preferably nearly L shaped elastomer of plug 4, and be provided with card convex 41 at upper and lower end, is provided with fin 42 in side, and guide plate installing hole 12 inwalls of jaw support are provided with and described card convex 41, groove that fin 42 is corresponding.
When installation, first nail supporting base 2 and backing plate 5 are installed together, nail supporting base installation cavity 11 upper ends that jaw support 1 is inserted in mounted nail supporting base 2 upper ends, again lower end is pushed, nail supporting base 2 left sides and jaw support 1 are fitted completely, now, nail supporting base 2 floating grounds are arranged on jaw support 1, and nail supporting base 2 and jaw support 1 are all having the free gap can automatic fine tuning up and down.Afterwards, guide plate 3 is inserted from the guide plate installing hole 12 of jaw support 1, inserting puts in place on backward pushes away, and makes on the draw-in groove 31 of guide plate 3 and the spacing hole 22 of nail supporting base 2 along the laminating of pegging graft.Finally plug 4 is inserted to guide plate installing hole 12, guide plate 3 is fixed in jaw support 1.After installation, the position, left and right that the present invention utilizes guide plate 3 draw-in grooves 31 to limit nail supporting base 2, and by plug 4 fixed guide plates 3, coordinate the hook formation 113 of jaw support can guarantee that nail supporting base 21 cannot depart from jaw support 1.
Shown in Fig. 7, stiching instrument of the present invention comprises the jaw assembly that nail bin 6, propulsive mechanism 7 and the present invention are above-mentioned.Approximate with existing design, propulsive mechanism 7 is slidably arranged on jaw support 1, and nail bin 6 is fixedly connected with pushing mechanism 7.
Shown in Fig. 8, nail bin of the present invention 6 upper ends are provided with the needle outlet 61 corresponding with nail supporting base location pin hole 21, lower end is provided with the locating dowel 62 that can insert nail supporting base spacing hole 22, and above locating dowel 62, be provided with the jack 63 corresponding with guide plate 3 right-hand members, above needle outlet 61, be provided with spacing preiection 64.
When percussion, propulsive mechanism 7 advances nail bin 6 to nail supporting base 2 directions, before nail bin 6 arrives nail supporting base 2, the right-hand member of guide plate 3 inserts in the jack 63 of nail bin, the locating dowel 62 of nail bin is inserted in the hole between spacing hole 22 and guide plate 3 middle parts of nail supporting base, nail bin 6 continues to advance to nail supporting base 2 directions, can realize the accurate location of nail bin 6 and nail supporting base 2, and spacing preiection 64 has guaranteed rational stitching gap simultaneously.
Guide plate 3 of the present invention plays three effects simultaneously: the one, and fixing nail supporting base 2 floats; The 2nd, prevent that, in nail bin 6 closing course, the tissue in jaw is squeezed in the groove of jaw support 1 below; The 3rd, guarantee that the locating dowel 62 of nail bin 6 below projections is accurately inserted in the spacing hole 22 of nail supporting base 2, thus the accurate location of realizing nail bin 3 and nail supporting base 2.Between nail supporting base 2 of the present invention and jaw support 1, without fixed connecting piece, coordinate and can realize location by nail bin 3, positioning needle, deft design, simple in structure, easy for installation, the associative perception of jaw is good.
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. a jaw assembly for stiching instrument, is characterized in that comprising jaw support, nail supporting base, guide plate and plug, wherein:
The left inside side of jaw support is provided with nail supporting base installation cavity, and lower left is provided with guide plate installing hole, and is provided with hook formation on nail supporting base installation cavity top;
Nail supporting base one end is provided with location pin hole, and the other end is provided with spacing hole;
Guide plate right part is through the spacing hole of nail supporting base, and left part is positioned at the guide plate installing hole of jaw support, middle part be provided with nail supporting base spacing hole on along the suitable draw-in groove of width;
Nail supporting base is arranged in the nail supporting base installation cavity of jaw support, and guide plate limits the position, left and right of nail supporting base by draw-in groove, and is fixed on by plug in the guide plate installing hole of jaw support.
2. the jaw assembly of stiching instrument according to claim 1, is characterized in that the nail supporting base installation cavity of described jaw support is slightly larger than nail supporting base.
3. the jaw assembly of stiching instrument according to claim 1, is characterized in that described nail supporting base cross section takes the shape of the letter U, and in the U-lag of nail supporting base, backing plate is installed.
4. the jaw assembly of stiching instrument according to claim 3, is characterized in that described backing plate is provided with the hole corresponding with location pin hole, the spacing hole of nail supporting base, and connects and fixes by protruding, groove structure and nail supporting base.
5. the jaw assembly of stiching instrument according to claim 1, is characterized in that described jaw support is integral type structure.
6. the jaw assembly of stiching instrument according to claim 1, it is characterized in that described plug is for closely L shaped, and be provided with card convex at upper and lower end, and being provided with fin in side, the guide plate installing hole inwall of jaw support is provided with and described card convex, groove that fin is corresponding.
7. the jaw assembly of stiching instrument according to claim 1, is characterized in that described jaw support adopts aluminum alloy material.
8. the jaw assembly of stiching instrument according to claim 1, is characterized in that described guide plate is plastic material, and described plug adopts elastic material.
9. a stiching instrument, is characterized in that comprising the jaw assembly described in any one in nail bin, propulsive mechanism and claim 1-8, wherein:
Propulsive mechanism is slidably arranged on jaw support, and nail bin is fixedly connected with pushing mechanism;
Nail bin upper end is provided with the needle outlet corresponding with nail supporting base location pin hole, and lower end is provided with the locating dowel that can insert nail supporting base spacing hole, and above locating dowel, is provided with the jack corresponding with guide plate right-hand member.
10. stiching instrument according to claim 9, is characterized in that described nail bin is also provided with spacing preiection above needle outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135897.XA CN102657544B (en) | 2012-05-04 | 2012-05-04 | Stitching instrument and jaw assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135897.XA CN102657544B (en) | 2012-05-04 | 2012-05-04 | Stitching instrument and jaw assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102657544A CN102657544A (en) | 2012-09-12 |
| CN102657544B true CN102657544B (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210135897.XA Active CN102657544B (en) | 2012-05-04 | 2012-05-04 | Stitching instrument and jaw assembly thereof |
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| CN (1) | CN102657544B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105434003B (en) * | 2015-12-22 | 2018-01-30 | 北京派尔特医疗科技股份有限公司 | A kind of Linear stapler nail bin groupware and Linear stapler |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3213304A1 (en) * | 1982-04-08 | 1983-10-13 | Günter 6380 Bad Homburg Okun | Clip suturing apparatus |
| EP0489436A1 (en) * | 1990-12-06 | 1992-06-10 | United States Surgical Corporation | Surgical fastening apparatus with locking mechanism |
| EP1550412A2 (en) * | 2003-12-30 | 2005-07-06 | Ethicon Endo-Surgery, Inc. | Knife retraction arm for a curved cutter stapler |
| CN1951333A (en) * | 2005-09-26 | 2007-04-25 | 伊西康内外科公司 | Surgical stapling instrument having end effector gripping surfaces |
| CN101507628A (en) * | 2008-02-14 | 2009-08-19 | 伊西康内外科公司 | Surgical cutting and fastening instrument having RF electrodes |
| CN101543417A (en) * | 2008-02-13 | 2009-09-30 | 伊西康内外科公司 | Surgical stapling instrument with improved firing trigger arrangement |
| CN201806743U (en) * | 2009-10-26 | 2011-04-27 | 北京中法派尔特医疗设备有限公司 | Linear stapler |
| CN102368957A (en) * | 2009-02-06 | 2012-03-07 | 伊西康内外科公司 | Driven surgical stapler improvements |
| CN202619745U (en) * | 2012-05-04 | 2012-12-26 | 北京中法派尔特医疗设备有限公司 | Suture instrument and jaw assembly thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8267300B2 (en) * | 2009-12-30 | 2012-09-18 | Ethicon Endo-Surgery, Inc. | Dampening device for endoscopic surgical stapler |
-
2012
- 2012-05-04 CN CN201210135897.XA patent/CN102657544B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3213304A1 (en) * | 1982-04-08 | 1983-10-13 | Günter 6380 Bad Homburg Okun | Clip suturing apparatus |
| EP0489436A1 (en) * | 1990-12-06 | 1992-06-10 | United States Surgical Corporation | Surgical fastening apparatus with locking mechanism |
| EP1550412A2 (en) * | 2003-12-30 | 2005-07-06 | Ethicon Endo-Surgery, Inc. | Knife retraction arm for a curved cutter stapler |
| CN1951333A (en) * | 2005-09-26 | 2007-04-25 | 伊西康内外科公司 | Surgical stapling instrument having end effector gripping surfaces |
| CN101543417A (en) * | 2008-02-13 | 2009-09-30 | 伊西康内外科公司 | Surgical stapling instrument with improved firing trigger arrangement |
| CN101507628A (en) * | 2008-02-14 | 2009-08-19 | 伊西康内外科公司 | Surgical cutting and fastening instrument having RF electrodes |
| CN102368957A (en) * | 2009-02-06 | 2012-03-07 | 伊西康内外科公司 | Driven surgical stapler improvements |
| CN201806743U (en) * | 2009-10-26 | 2011-04-27 | 北京中法派尔特医疗设备有限公司 | Linear stapler |
| CN202619745U (en) * | 2012-05-04 | 2012-12-26 | 北京中法派尔特医疗设备有限公司 | Suture instrument and jaw assembly thereof |
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| Publication number | Publication date |
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| CN102657544A (en) | 2012-09-12 |
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