CN103750873A - Surgery medical stapling nail forming groove with nail bending channel - Google Patents
Surgery medical stapling nail forming groove with nail bending channel Download PDFInfo
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- CN103750873A CN103750873A CN201410044513.2A CN201410044513A CN103750873A CN 103750873 A CN103750873 A CN 103750873A CN 201410044513 A CN201410044513 A CN 201410044513A CN 103750873 A CN103750873 A CN 103750873A
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- anastomosis staple
- grooving
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- rotary body
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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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
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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
- A61B2017/07214—Stapler heads
- A61B2017/07257—Stapler heads characterised by its anvil
- A61B2017/07264—Stapler heads characterised by its anvil characterised by its staple forming cavities, e.g. geometry or material
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Abstract
The invention provides a surgery medical stapling nail forming groove with a nail bending channel. When the axis in the perpendicular direction of a tissue contact face of a nail anvil serves as the rotation axis of a rotary body and the rotary body enters the bottom of the groove and is tightly attached to a medical stapling nail guide line of the medical stapling nail forming groove and moves along the medical stapling nail guide line of the medical stapling nail forming groove, a track hook face formed by the rotary body in the groove is a hook face of the nail bending channel of the medical stapling nail forming groove. The surgery medical stapling nail forming groove with the nail bending channel is particularly suitable for the occasion that the medical stapling nail forming groove with the low machining technical requirement is firstly machined on the tissue contact face of the nail anvil, finish machining cutting allowance is reserved, then the rotary body serves as a cutting head of a cutting tool of precise high-speed rotary cutting machines such as an accurate engraving machine to machine the nail bending channel of the medical stapling nail forming groove, so that the machining cost is greatly reduced, and the machining time is greatly shortened.
Description
Technical field
The present invention relates to the anastomosis staple grooving using in various surgical staplings, specially refer to the anastomosis staple grooving using in straight shape anastomat or straight shape Endo-GIA, also specially refer to the anastomosis staple grooving using in arc-shaped cutting anastomat, also specially refer to the anastomosis staple grooving using in circular anastomosis device, also specially refer to the anastomosis staple grooving using in the mirror surgical incision anastomat of chamber, relate more specifically to the anastomosis staple grooving using in various Motorized surgical anastomats.
Background technology
Various surgical staplings are used for replacing surgical operation to adopt the free-hand identical operation of needlework, be widely used in the operations such as the end end of human body alimentary canal organ, respiratory tract organ and apparatus urogenitalis official rank Organ and tissue, distolateral and side to side anastomosis, form the operation of the operation of passage, the operation of close incisions and clamping or cutting, be specially adapted to appear the anastomosis operation with the Organ and tissue of operating difficulties, can reduce operating time, improve operation quality.
As the straight shape Endo-GIA of United States Patent (USP) publicity 20050222616, the arc-shaped cutting anastomat of United States Patent (USP) publicity 20050247753, the chamber mirror Endo-GIA of United States Patent (USP) publicity 20100200639, the circular anastomosis device of United States Patent (USP) publicity 20110101065, the straight shape anastomat of United States Patent (USP) publicity 20130015230, the various electronic surgical stapling of United States Patent (USP) publicity 20130018361 and other are various manual, or electronic, or surge, or introduce in pneumatic surgical stapling: surgical stapling is by nail bin groupware, nail-anvil assembly and operating mechanism form.In nail bin groupware, there is nail bin and be arranged on anastomosis staple and the ejector pin piece in nail bin, and can cutter need to be installed according to using.On the tissue contact surface of the nail anvil in nail-anvil assembly, there is the anastomosis staple grooving forming after indent.Anastomosis staple grooving on nail anvil is mutually corresponding with the position of the anastomosis staple in nail bin.The anastomosis staple of above-mentioned various surgical staplings and the effect of anastomosis staple grooving in the use procedure of surgical stapling are: after between operating mechanism is by the tissue contact surface of nail anvil of mutually drawing close wait the clamp tissue of coincideing and the tissue contact surface of nail bin, operating mechanism is released anastomosis staple by promoting ejector pin piece in nail bin, make the nail tip of anastomosis staple penetrate clamped after the tissue that coincide bending forming on the anastomosis staple grooving on nail anvil, reach and will organize identical operation object.
Due to the sealing of being organized coincideing and the requirement of hemostasis, the spacing of adjacent two rows or two circle anastomosis staples is limited in less size, namely the spacing of adjacent two rows or two circle anastomosis staple groovings is limited in less size, make the width of anastomosis staple grooving less, therefore work as the shape of the anastomosis staple grooving of surgical stapling, when the precision of position and size cannot meet the specification requirement that anastomosis staple is formed accurately, the nail tip of the anastomosis staple in nail bin may be against inappropriate position of the anastomosis staple grooving of nail anvil, even may be against beyond the anastomosis staple grooving of nail anvil, cause anastomosis staple to be shaped unsuccessfully, can not reach the accurate identical operation object of tissue.On the other hand, when the surface roughness of the anastomosis staple grooving of surgical stapling is larger, when the nail tip of the anastomosis staple in nail bin is against on the shaggy anastomosis staple grooving of nail anvil bending forming, the resistance of anastomosis staple bending forming obviously increases, both having affected anastomosis staple is formed accurately, cause again the operating physical force of surgical stapling obviously to increase, easily cause operation fatigue; Meanwhile, the noise sending when the nail tip of anastomosis staple is against bending forming on the shaggy anastomosis staple grooving of nail anvil, further impels operator to produce tired sensation.
As the rectangular anastomosis staple grooving on the tissue contact surface of nail anvil of being introduced in U.S. Patent Publication No. 20080061109, that in U.S. Patent Publication No. 20060124688, introduces is saddle-shaped anastomosis staple grooving on the tissue contact surface of nail anvil, the anastomosis staple grooving triangular in shape on the tissue contact surface of nail anvil of introducing in U.S. Patent Publication No. 20110017799, that in U.S. Patent Publication No. 20110084113, introduces is two leg-of-mutton anastomosis staple groovings of biasing mutually on the tissue contact surface of nail anvil.The unsatisfactory place of the anastomosis staple grooving of the surgical stapling of these several styles is, the shape of anastomosis staple grooving is all very complicated, and on the tissue contact surface of same nail anvil, be often arranged with the anastomosis staple grooving of 40 to 80, need to adopt the method processing such as the compressing and metal powder injection thermal sintering of mould.
If adopt mould method for press forming processing anastomosis staple grooving, because the quantity of anastomosis staple grooving is many, therefore need the press of 80 tons of left and right compressing, again because the tissue contact surface of nail anvil can not contact with the shaping contact face of the anastomosis staple grooving of 40 to 80 on compressing mould completely simultaneously, and the narrowest place of the shaping contact face of anastomosis staple grooving is only 0.3mm left and right, therefore the pressure concentration of 80 tons of left and right of press is on the shaping contact face of indivedual anastomosis staple groovings, first cause shaping contact facial disfigurement or the damage of these indivedual anastomosis staple groovings, make the precision of the shape and size of the anastomosis staple grooving that is processed into subsequently not reach the specification requirement that anastomosis staple is formed accurately, also make the service life of compressing mould very short, while being also all pressed in the tissue contact surface of nail anvil due to the shaping contact face of the anastomosis staple grooving of 40 to 80 on compressing mould, there is complicated plastic deformation in nail anvil, may make the anastomosis staple grooving that is processed into and the precision of periphery bit position and size thereof not reach the specification requirement that anastomosis staple is formed accurately, in addition, in order to reach the specification requirement of the surface roughness of anastomosis staple grooving, before adopting mould method for press forming processing anastomosis staple grooving, need the tissue contact surface of precise polished nail anvil, this operation has increased processing cost and process time.
If adopt metal powder injection thermal sintering method processing anastomosis staple grooving, precision and the surface roughness of shape, position and the size of the anastomosis staple grooving being processed into due to metal powder injection thermal sintering all cannot meet the specification requirement that anastomosis staple is formed accurately, and therefore need to carry out secondary operations to anastomosis staple grooving.
In addition, adopt the method processing such as the compressing and metal powder injection thermal sintering of mould, anastomosis staple grooving for the surgical stapling of every kind of specification, every kind of model, all need to be equipped with the very high mould of required precision of a set of special use, altogether need mold more than 100 just can assort, make processing cost and cost of upkeep quite high.
If adopt metal-cutting machining method processing anastomosis staple grooving, because the shape of existing anastomosis staple grooving is all very complicated, by many curved surfaces, formed, there is the turning of many small curvature radius in the junction of each curved surface, therefore each anastomosis staple grooving need to just can complete processing several times with the feed all around of tiny cutting element, tiny cutting element also easily damages, and the processing cost of anastomosis staple grooving that makes 40 to 80 is quite high, process time is quite long.
Therefore the anastomosis staple grooving of surgical stapling also needs to improve.
By above-mentioned, obviously can be found out, a large amount of not surgical staplings have in specie been designed now, and the development work of the anastomosis staple grooving of new surgical stapling is still continuing, to annual a large amount of surgical staplings that use are in the world improved further, both reached the reliable identical operation object of tissue, reached again easy to use, cost-effective object.
Summary of the invention
The object of the invention is to propose a kind of nail of the surgical stapling with curved nail ditch grooving, it is rotation axis that realization be take the axis of vertical direction of tissue contact surface of nail anvil at rotary body, when being close to the anastomosis staple guide line of anastomosis staple grooving and moving along the anastomosis staple guide line of anastomosis staple grooving with the bottom that enters groove of rotary body, rotary body formed track curved surface in groove is the curved surface of the curved nail ditch that forms anastomosis staple grooving, the shape that is particularly suitable for first adopting on the tissue contact surface of nail anvil the methods such as the compressing or metal powder injection thermal sintering of mould to be processed into, the anastomosis staple grooving that the precision of position and size and the specification requirement of surface roughness are not high, and reserve polish chipping allowance at the anastomosis staple guide line place of anastomosis staple grooving, and then on the high speed and precision rotary cutting lathes such as carving machine, adopt and using the bit of above-mentioned rotary body as Tool in Cutting instrument or grinding tool cutting element, curved nail ditch along the anastomosis staple guide line polish anastomosis staple grooving of anastomosis staple grooving, thereby the shape that anastomosis staple grooving of the present invention is processed at anastomosis staple guide line place, the shape that the precision of position and size and surface roughness are all better than adopting the methods such as the compressing and metal powder injection thermal sintering of existing mould to be processed into, the precision of position and size and surface roughness.All machined parameters of the curved nail ditch of various anastomosis staple groovings can be kept in the internal memory of digital control circuit of the high speed and precision rotary cutting lathes such as carving machine, in order to calling at any time and can revising at any time as required, processing cost and process time are reduced greatly.
The object of the invention is to be achieved through the following technical solutions:
Surgical stapling with curved nail ditch nail grooving of the present invention is arranged on the tissue contact surface of nail anvil.Each anastomosis staple grooving is comprised of two grooves.The two ends place that the groove forming after indent on the tissue contact surface of nail anvil is positioned at anastomosis staple grooving be into nail face, be positioned at anastomosis staple grooving center for going out nail face.In the both sides of groove, there are side, bottom to have bottom surface.
On the bottom surface of groove, there is the curved nail ditch that is ditch shape that extends to out nail face from entering nail face.The bosom that enters nail face and go out to follow closely face of curved nail ditch forms the anastomosis staple guide line of anastomosis staple grooving.
At rotary body, take the axis of vertical direction of tissue contact surface of nail anvil as rotation axis, when being close to the anastomosis staple guide line of anastomosis staple grooving and moving along the anastomosis staple guide line of anastomosis staple grooving with the bottom that enters groove of rotary body, rotary body formed track curved surface in groove is the curved surface of the curved nail ditch that forms anastomosis staple grooving.
The bottom that enters nail anvil of rotary body can be curved surface.If the radius of curvature of the curved surface of the bottom that enters nail anvil of rotary body is R1, the radius of curvature of the anastomosis staple guide line of anastomosis staple grooving is R2, the radius of curvature of geometric locus of the center of curvature of curved surface of bottom of rotary body of being close to the anastomosis staple guide line of anastomosis staple grooving is R=R1+R2, when rotary body, take the axis of vertical direction of tissue contact surface of nail anvil is rotation axis, while moving along geometric locus with the center of curvature of the curved surface of the bottom of rotary body, rotary body formed track curved surface in the groove of nail anvil is the curved surface of the curved nail ditch of the groove that forms anastomosis staple grooving.
The bottom that enters nail anvil of rotary body can be also conical surface, the radius of curvature at place, the pinnacle of the conical surface of the bottom that enters nail anvil of rotary body is R1=0, the geometric locus on pinnacle of conical surface of bottom of rotary body of being close to the anastomosis staple guide line of anastomosis staple grooving overlaps with the anastomosis staple guide line of anastomosis staple grooving, when rotary body, take the axis of vertical direction of tissue contact surface of nail anvil is rotation axis, while moving along the anastomosis staple guide line of anastomosis staple grooving with the pinnacle of the conical surface of the bottom of rotary body, rotary body formed track curved surface in the groove of nail anvil is the curved surface of the curved nail ditch of the groove that forms anastomosis staple grooving.
The plane at the anastomosis staple guide line place in the curved nail ditch of two grooves of same anastomosis staple grooving can, in same plane, also can be parallel to each other.
The intersection point that goes out to follow closely face in anastomosis staple guide line in the curved nail ditch of two grooves of same anastomosis staple grooving and the curved nail ditch of its groove can intersect, and also can mutually depart from.
Nail anvil of the present invention can be rounded.A plurality of anastomosis staple groovings are staggered at least two circles on the tissue contact surface of circular nail anvil.Circular nail anvil can be than circular nail anvil compared with the depth as shallow of the anastomosis staple grooving in outside compared with the degree of depth of the anastomosis staple grooving of inner side.The anastomosis staple grooving of circular nail anvil goes for the anastomosis staple of the nail beam of 3mm ± 0.3mm width.
It is linear that nail anvil of the present invention also can be.On the tissue contact surface of the online staple anvil of a plurality of anastomosis staple groovings, be staggered at least two rows.On linear nail anvil, can there is cutter groove.A plurality of anastomosis staple groovings are arranged in the both sides of the cutter groove of linear nail anvil.The degree of depth of the anastomosis staple grooving of the cutter groove on close linear nail anvil can compare the depth as shallow of the anastomosis staple grooving of the cutter groove on deviated line staple anvil.
The surgical stapling nail grooving of various technical schemes of the present invention, according to the requirements of operation of the tissue that coincide, both can adopt the surgical stapling nail grooving of a certain technical scheme of the present invention, also can adopt the surgical stapling nail grooving of various technical schemes of the present invention to mix use, can also adopt the surgical stapling nail grooving of various technical schemes of the present invention to mix use with existing various types of surgical stapling nail groovings, for example, certain circle or certain row select the surgical stapling nail grooving in various technical scheme of the present invention, another circle or another row select existing various types of surgical stapling nail grooving.
Accompanying drawing explanation
Fig. 1 means the outside drawing of surgical stapling nail grooving of rectangle of the preliminary working of first embodiment of the invention;
Fig. 2 means the outside drawing of adopted rotary body ball;
Fig. 3 means that the rotary body ball of Fig. 2 forms the cutaway view of movement locus of the curved nail ditch of surgical stapling nail grooving;
Fig. 4 means the outside drawing of the nail of the surgical stapling with the curved nail ditch grooving of the first embodiment;
Fig. 5 means the cutaway view of the nail of the surgical stapling with the curved nail ditch grooving of Fig. 4;
Fig. 6 means the outside drawing of the anastomosis staple grooving of the preliminary working of arranging two loop graphs 1 on the tissue contact surface of circular nail anvil;
Fig. 7 means the outside drawing of the anastomosis staple grooving with curved nail ditch of arranging two loop graphs 4 on the tissue contact surface of circular nail anvil;
Fig. 8 means the outside drawing of rectangle surgical stapling nail grooving of middle indent of the preliminary working of second embodiment of the invention;
Fig. 9 means that the rotary body ball of Fig. 2 forms the cutaway view of movement locus of the curved nail ditch of surgical stapling nail grooving;
Figure 10 means the outside drawing of the nail of the surgical stapling with the curved nail ditch grooving of the second embodiment;
Figure 11 means the outside drawing of surgical stapling nail grooving of the preliminary working of third embodiment of the invention;
Figure 12 to Figure 15 means that the rotary body ball of Fig. 2 forms outside drawing and the cutaway view of movement locus of the curved nail ditch of surgical stapling nail grooving;
Figure 16 means the outside drawing of the nail of the surgical stapling with the curved nail ditch grooving of the 3rd embodiment;
Figure 17 means the outside drawing of the anastomosis staple grooving of the preliminary working of arranging three loop graphs 8 and Figure 11 on the tissue contact surface of circular nail anvil;
Figure 18 means the outside drawing of the anastomosis staple grooving with curved nail ditch of arranging three loop graphs 10 and Figure 16 on the tissue contact surface of circular nail anvil;
Figure 19 means the outside drawing of rectangle surgical stapling nail grooving of middle indent of the preliminary working of fourth embodiment of the invention;
Figure 20 means the outside drawing of adopted rotary body circular cone;
Figure 21 and Figure 22 mean that the rotary body circular cone of Figure 20 forms outside drawing and the cutaway view of movement locus of the curved nail ditch of surgical stapling nail grooving;
Figure 23 means the outside drawing of the nail of the surgical stapling with the curved nail ditch grooving of the 4th embodiment;
Figure 24 means the outside drawing of the anastomosis staple grooving of the preliminary working of arranging four row Figure 19 on the tissue contact surface of online staple anvil;
Figure 25 means the outside drawing of arranging the anastomosis staple grooving with curved nail ditch of four row Figure 23 on the tissue contact surface of online staple anvil.
The specific embodiment
By way of example, state by reference to the accompanying drawings the most preferred embodiment of the nail of the surgical stapling with curved nail ditch grooving of the present invention below.Scope of the present invention will be pointed out in the claims.Will be appreciated that some or all accompanying drawing is all for the explanation sketch of most preferred embodiment of the present invention is described, and the full-size(d) of part shown in not depicting.With reference to describing in detail of most preferred embodiment, understand with will be more readily apparent from reach the present invention above-mentioned with practical ways other objects and advantages.
For the ease of illustrating technical characterictic, technical scheme and the technique effect of the nail of the surgical stapling with the curved nail ditch grooving of various embodiments of the invention, anastomosis staple grooving in various embodiment only illustrates a part for nail anvil in surgical stapling below, the content in each piece of United States Patent (USP) publicity that the global shape of anastomosis staple grooving in various surgical staplings, 26S Proteasome Structure and Function are quoted in can the background technology with reference to this description.
Fig. 1 means the rectangle surgical stapling nail grooving 1 of the preliminary working of first embodiment of the invention.Two grooves 4 and 5 that anastomosis staple grooving 1 forms after by indent on the tissue contact surface 3 at nail anvil 2 form.In the both sides of groove 4 and 5, there are side 6 and 7.
As shown in Figure 5, on the groove 9 of the accurately machined surgical stapling with curved nail ditch of first embodiment of the invention nail grooving 8 and 10 bottom surface 11 and 12, there is the curved nail ditch 17 and 18 that is ditch shape that extends to out nail face 15 and 16 from entering nail face 13 and 14.Curved nail ditch 17 and 18 enter nail face 13 and 14 and the bosom that goes out nail face 15 and 16 form the anastomosis staple guide line 19 and 20 of anastomosis staple grooving 8.
As shown in Figures 2 to 5, if the radius of curvature 22 of the curved surface of the bottom that enters nail anvil 2 of rotary body ball 21 is R1, the anastomosis staple guide line 19 of anastomosis staple grooving 8 and 20 radius of curvature 23 are R2, being close to the geometric locus 24 of the center of curvature of curved surface of the anastomosis staple guide line 19 of anastomosis staple grooving 8 and the bottom of 20 rotary body ball 21 and 25 radius of curvature 26 is R=R1+R2, when rotary body ball 21, take the axis of vertical direction of tissue contact surface 3 of nail anvil 2 is rotation axis, while moving along geometric locus 24 and 25 with the center of curvature of the curved surface of the bottom of rotary body ball 21, rotary body ball 21 is groove 9 and 10 curved nail ditch 17 and 18 the curved surface that forms anastomosis staple grooving 8 at the groove 4 of nail anvil 2 and 5 interior formed track curved surfaces 27 and 28.
As shown in Figure 4 and Figure 5, the plane at two grooves 9 of anastomosis staple grooving 8 and 10 anastomosis staple guide line 19 and 20 places is in same plane, and two grooves 9 and 10 anastomosis staple guide line 19 and 20 go out nail face 15 and 16 intersection point with it intersects.
As shown in Figure 6, nail anvil 30 is rounded.The anastomosis staple grooving 31 of a plurality of preliminary working and 32 is staggered to two circles on the tissue contact surface 33 of circular nail anvil 30.Circular nail anvil 30 compared with the circular nail anvil 30 of the depth ratio of the anastomosis staple grooving 31 of inner side compared with the depth as shallow of the anastomosis staple grooving 32 in outside.
As shown in Figure 7, a plurality of accurately machined anastomosis staple groovings 34 and 35 are staggered to two circles on the tissue contact surface 33 of circular nail anvil 30.Circular nail anvil 30 compared with the circular nail anvil 30 of the depth ratio of the curved nail ditch 36 of the anastomosis staple grooving 31 of inner side compared with the depth as shallow of the curved nail ditch 37 of the anastomosis staple grooving 32 in outside.The anastomosis staple grooving 31 and 32 of circular nail anvil 30 both gone for the nail beam of 3mm width anastomosis staple, also go for the anastomosis staple of the nail beam of 4mm width.
Fig. 8 means the rectangle surgical stapling nail grooving 40 of middle indent of the preliminary working of second embodiment of the invention.Two grooves 43 and 44 that anastomosis staple grooving 40 forms after by indent on the tissue contact surface 42 at nail anvil 41 form.In the both sides of groove 43 and 44, there are side 45 and 46.
As shown in figure 10, on the groove 48 of the accurately machined surgical stapling with curved nail ditch of second embodiment of the invention nail grooving 47 and 49 bottom surface 50 and 51, there is the curved nail ditch 56 and 57 that is ditch shape that extends to out nail face 54 and 55 from entering nail face 52 and 53. Curved nail ditch 56 and 57 enter nail face 52 and 53 and the bosom that goes out nail face 54 and 55 form the anastomosis staple guide line 58 and 59 of anastomosis staple grooving 47.
As shown in Figure 9, if the radius of curvature 22 of the curved surface of the bottom that enters nail anvil 41 of rotary body ball 21 is R1, the anastomosis staple guide line 58 of anastomosis staple grooving 47 and 59 radius of curvature 60 are R2, being close to the geometric locus 61 of the center of curvature of curved surface of the anastomosis staple guide line 58 of anastomosis staple grooving 47 and the bottom of 59 rotary body ball 21 and 62 radius of curvature 63 is R=R1+R2, when rotary body ball 21, take the axis of vertical direction of tissue contact surface 42 of nail anvil 41 is rotation axis, while moving along geometric locus 61 and 62 with the center of curvature of the curved surface of the bottom of rotary body ball 21, rotary body ball 21 is groove 48 and 49 curved nail ditch 56 and 57 the curved surface that forms anastomosis staple grooving 47 at the groove 43 of nail anvil 41 and 44 interior formed track curved surfaces 64 and 65.
As shown in figure 10, the plane at two grooves 48 of anastomosis staple grooving 47 and 49 anastomosis staple guide line 58 and 59 places is in same plane, and two grooves 48 and 49 anastomosis staple guide line 58 and 59 go out nail face 54 and 55 intersection point with it intersects.
Figure 11 means the surgical stapling nail grooving 70 of the preliminary working of third embodiment of the invention.Two grooves 73 and 74 that anastomosis staple grooving 70 forms after by indent on the tissue contact surface 72 at nail anvil 71 form.In the both sides of groove 73 and 74, there are side 75 and 76.
As shown in figure 16, on the groove 78 of the accurately machined surgical stapling with curved nail ditch of third embodiment of the invention nail grooving 77 and 79 bottom surface 80 and 81, there is the curved nail ditch 86 and 87 that is ditch shape that extends to out nail face 84 and 85 from entering nail face 82 and 83. Curved nail ditch 86 and 87 enter nail face 82 and 83 and the bosom that goes out nail face 84 and 85 form the anastomosis staple guide line 88 and 89 of anastomosis staple grooving 77.
As shown in Figure 12 to Figure 16, if the radius of curvature 22 of the curved surface of the bottom that enters nail anvil 71 of rotary body ball 21 is R1, the anastomosis staple guide line 88 of anastomosis staple grooving 77 and 89 radius of curvature 90 are R2, being close to the geometric locus 91 of the center of curvature of curved surface of the anastomosis staple guide line 88 of anastomosis staple grooving 77 and the bottom of 89 rotary body ball 21 and 92 radius of curvature 93 is R=R1+R2, when rotary body ball 21, take the axis of vertical direction of tissue contact surface 72 of nail anvil 71 is rotation axis, while moving along geometric locus 91 and 92 with the center of curvature of the curved surface of the bottom of rotary body ball 21, rotary body ball 21 is groove 78 and 79 curved nail ditch 86 and 87 the curved surface that forms anastomosis staple grooving 77 at the groove 73 of nail anvil 71 and 74 interior formed track curved surfaces 94 and 95.
As shown in figure 16, two grooves 78 of anastomosis staple grooving 77 and 79 anastomosis staple guide line 88 and the plane at 89 places are parallel to each other, and two grooves 78 and 79 anastomosis staple guide line 88 and 89 go out nail face 84 and 85 intersection point with it departs from mutually.
As shown in figure 17, nail anvil 100 is rounded.The anastomosis staple grooving 101,102 of a plurality of preliminary working and 103 is staggered to three circles on the tissue contact surface 104 of circular nail anvil 100.Circular nail anvil 100 compared with the circular nail anvil 100 of the depth ratio of the anastomosis staple grooving 101 of inner side compared with the depth as shallow of the anastomosis staple grooving 103 in outside.
As shown in figure 18, a plurality of accurately machined anastomosis staple groovings 105,106 and 107 are staggered to three circles on the tissue contact surface 104 of circular nail anvil 100.Circular nail anvil 100 compared with the circular nail anvil 100 of the depth ratio of the curved nail ditch 108 of the anastomosis staple grooving 105 of inner side compared with the depth as shallow of the curved nail ditch 109 of the anastomosis staple grooving 107 in outside.The anastomosis staple grooving 105,106 and 107 of circular nail anvil 100 both gone for the nail beam of 3mm width anastomosis staple, also go for the anastomosis staple of the nail beam of 4mm width.
Figure 19 means the rectangle surgical stapling nail grooving 110 of middle indent of the preliminary working of fourth embodiment of the invention.Two grooves 113 and 114 that anastomosis staple grooving 110 forms after by indent on the tissue contact surface 112 at nail anvil 111 form.In the both sides of groove 113 and 114, there are side 115 and 116.
As shown in figure 23, on the groove 118 of the accurately machined surgical stapling with curved nail ditch of fourth embodiment of the invention nail grooving 117 and 119 bottom surface 120 and 121, there is the curved nail ditch 126 and 127 that is ditch shape that extends to out nail face 124 and 125 from entering nail face 122 and 123. Curved nail ditch 126 and 127 enter nail face 122 and 123 and the bosom that goes out nail face 124 and 125 form the anastomosis staple guide line 128 and 129 of anastomosis staple grooving 117.
As shown in Figure 19 to Figure 23, the radius of curvature at the place, pinnacle of the conical surface of the bottom that enters nail anvil 111 of rotary body circular cone 130 is R1=0, the geometric locus 131 and 132 on pinnacle of being close to the conical surface of the anastomosis staple guide line 128 of anastomosis staple grooving 117 and the bottom of 129 rotary body circular cone 130 overlaps with the anastomosis staple guide line 128 and 129 of anastomosis staple grooving 117, when rotary body circular cone 130, take the axis of vertical direction of tissue contact surface 112 of nail anvil 111 is rotation axis, while moving along the anastomosis staple guide line 128 and 129 of anastomosis staple grooving 117 with the pinnacle of the conical surface of the bottom of rotary body circular cone 130, rotary body circular cone 130 is groove 118 and 119 curved nail ditch 126 and 127 the curved surface that forms anastomosis staple grooving 117 at the groove 113 of nail anvil 111 and 114 interior formed track curved surfaces 133 and 134.
As shown in figure 23, the plane at two grooves 118 of anastomosis staple grooving 117 and 119 anastomosis staple guide line 128 and 129 places is in same plane, and two grooves 118 and 119 anastomosis staple guide line 128 and 129 go out nail face 124 and 125 intersection point with it departs from mutually.
As shown in figure 24, nail anvil 135 is linear.On linear nail anvil 135, there is cutter groove 136.The tissue contact surface 139 of the anastomosis staple grooving 137 of a plurality of preliminary working and 138 online staple anvils 135 is submitted the both sides that staggered arrangement is listed in the cutter groove 136 on staple anvil 135.The depth ratio of the anastomosis staple grooving 137 of the cutter groove 136 on close linear nail anvil 135 is compared with the depth as shallow of the anastomosis staple grooving 138 of the cutter groove 136 on deviated line staple anvil 135.
As shown in figure 25, the tissue contact surface 139 of a plurality of accurately machined anastomosis staple groovings 140 and 141 online staple anvils 135 is submitted the both sides that staggered arrangement is listed in the cutter groove 136 on linear nail anvil 135.The depth ratio of the anastomosis staple grooving 140 of the cutter groove 136 on close linear nail anvil 135 is compared with the depth as shallow of the anastomosis staple grooving 141 of the cutter groove 136 on deviated line staple anvil 135.
According to above-mentioned, introduce in detail knownly, compare with existing anastomosis staple grooving, the nail of the surgical stapling with curved nail ditch grooving of the present invention has following technique effect:
Due to the sealing of being organized coincideing and the requirement of hemostasis, the spacing of adjacent two rows or two circle anastomosis staples is limited in less size, namely the spacing of adjacent two rows or two circle anastomosis staple groovings is limited in less size, make the width of anastomosis staple grooving less, therefore work as the shape of the anastomosis staple grooving of surgical stapling, when the precision of position and size cannot meet the specification requirement that anastomosis staple is formed accurately, the nail tip of the anastomosis staple in nail bin may be against inappropriate position of the anastomosis staple grooving of nail anvil, even may be against beyond the anastomosis staple grooving of nail anvil, cause anastomosis staple to be shaped unsuccessfully, can not reach the accurate identical operation object of tissue.On the other hand, when the surface roughness of the anastomosis staple grooving of surgical stapling is larger, when the nail tip of the anastomosis staple in nail bin is against on the shaggy anastomosis staple grooving of nail anvil bending forming, the resistance of anastomosis staple bending forming obviously increases, both having affected anastomosis staple is formed accurately, cause again the operating physical force of surgical stapling obviously to increase, easily cause operation fatigue; Meanwhile, the noise sending when the nail tip of anastomosis staple is against bending forming on the shaggy anastomosis staple grooving of nail anvil, further impels operator to produce tired sensation.
The shape of existing anastomosis staple grooving is all very complicated, and on the tissue contact surface of same nail anvil, is often arranged with the anastomosis staple grooving of 40 to 80, need to adopt the method processing such as the compressing and metal powder injection thermal sintering of mould.
If adopt mould method for press forming processing anastomosis staple grooving, because the quantity of anastomosis staple grooving is many, therefore need the press of 80 tons of left and right compressing, again because the tissue contact surface of nail anvil can not contact with the shaping contact face of the anastomosis staple grooving of 40 to 80 on compressing mould completely simultaneously, and the narrowest place of the shaping contact face of anastomosis staple grooving is only 0.3mm left and right, therefore the pressure concentration of 80 tons of left and right of press is on the shaping contact face of indivedual anastomosis staple groovings, first cause shaping contact facial disfigurement or the damage of these indivedual anastomosis staple groovings, make the precision of the shape and size of the anastomosis staple grooving that is processed into subsequently not reach the specification requirement that anastomosis staple is formed accurately, also make the service life of compressing mould very short, while being also all pressed in the tissue contact surface of nail anvil due to the shaping contact face of the anastomosis staple grooving of 40 to 80 on compressing mould, there is complicated plastic deformation in nail anvil, may make the anastomosis staple grooving that is processed into and the precision of periphery bit position and size thereof not reach the specification requirement that anastomosis staple is formed accurately, in addition, in order to reach the specification requirement of the surface roughness of anastomosis staple grooving, before adopting mould method for press forming processing anastomosis staple grooving, need the tissue contact surface of precise polished nail anvil, this operation has increased processing cost and process time.
If adopt metal powder injection thermal sintering method processing anastomosis staple grooving, precision and the surface roughness of shape, position and the size of the anastomosis staple grooving being processed into due to metal powder injection thermal sintering all cannot meet the specification requirement that anastomosis staple is formed accurately, and therefore need to carry out secondary operations to anastomosis staple grooving.
In addition, adopt the method processing such as the compressing and metal powder injection thermal sintering of mould, anastomosis staple grooving for the surgical stapling of every kind of specification, every kind of model, all need to be equipped with the very high mould of required precision of a set of special use, altogether need mold more than 100 just can assort, make processing cost and cost of upkeep quite high.
If adopt metal-cutting machining method processing anastomosis staple grooving, because the shape of existing anastomosis staple grooving is all very complicated, by many curved surfaces, formed, there is the turning of many small curvature radius in the junction of each curved surface, therefore each anastomosis staple grooving need to just can complete processing several times with the feed all around of tiny cutting element, tiny cutting element also easily damages, and the processing cost of anastomosis staple grooving that makes 40 to 80 is quite high, process time is quite long.
Known according to the process of surgical stapling nail bending forming: anastomosis staple bending forming is that the anastomosis staple guide line along the bottom portion of groove of anastomosis staple grooving completes, therefore the object being formed accurately in order to reach anastomosis staple is very high in the precision of shape, position and size and the specification requirement of surface roughness at anastomosis staple guide line place to anastomosis staple grooving; The side of the groove of anastomosis staple grooving is only the effect at the anastomosis staple guide line place of the nail tip that the played guided anastomosis nail bottom portion of groove that enters anastomosis staple grooving, even if therefore the precision of side shape, position and size and the specification requirement of surface roughness of the groove of anastomosis staple grooving are not bery high, can affect anastomosis staple yet and be formed accurately.
Surgical stapling with curved nail ditch nail grooving of the present invention, it is rotation axis that realization be take the axis of vertical direction of tissue contact surface of nail anvil at rotary body, when being close to the anastomosis staple guide line of anastomosis staple grooving and moving along the anastomosis staple guide line of anastomosis staple grooving with the bottom that enters groove of rotary body, rotary body formed track curved surface in groove is the curved surface of the curved nail ditch that forms anastomosis staple grooving, the shape that is particularly suitable for first adopting on the tissue contact surface of nail anvil the method preliminary working such as the compressing or metal powder injection thermal sintering of mould to become, the anastomosis staple grooving that the precision of position and size and the specification requirement of surface roughness are not bery high, and reserve polish chipping allowance at the anastomosis staple guide line place of anastomosis staple grooving, and then on the high speed and precision rotary cutting lathes such as carving machine, adopt and using the bit of above-mentioned rotary body as Tool in Cutting instrument or grinding tool cutting element, curved nail ditch along the anastomosis staple guide line polish anastomosis staple grooving of anastomosis staple grooving, thereby the shape that anastomosis staple grooving of the present invention is processed at anastomosis staple guide line place, the shape that the precision of position and size and surface roughness are all better than adopting the methods such as the compressing and metal powder injection thermal sintering of existing mould to be processed into, the precision of position and size and surface roughness.All machined parameters of the curved nail ditch of various anastomosis staple groovings can be kept in the internal memory of digital control circuit of the high speed and precision rotary cutting lathes such as carving machine, in order to calling at any time and can revising at any time as required, processing cost and process time are reduced greatly.
Adopt the nail of the surgical stapling with curved nail ditch grooving of the present invention: when anastomosis staple is pushed to anastomosis staple grooving, if when the nail tip of anastomosis staple directly enters in the curved nail ditch of groove of anastomosis staple grooving, the nail lower limb of anastomosis staple is along the curved nail ditch bending forming of the groove of anastomosis staple grooving; If the nail tip of anastomosis staple departs from the curved nail ditch of the groove of anastomosis staple grooving, while entering on the side of groove of anastomosis staple grooving, the nail tip of anastomosis staple slips into from the side of the groove of anastomosis staple grooving in the curved nail ditch of groove of anastomosis staple grooving, and then the nail lower limb of anastomosis staple is along the curved nail ditch bending forming of the groove of anastomosis staple grooving.Because the nail of the surgical stapling with curved nail ditch grooving of the present invention can reach the very high precision of shape, position and size and the specification requirement of surface roughness at anastomosis staple guide line place, thereby reach the object that anastomosis staple is formed accurately.
So can find out that above-mentioned stated target comprises by illustrating that those shown targets have been effectively achieved above.Described here is only the typical best form of implementation of the present patent application, can do some to said structure and change also without prejudice to the spirit and scope of the present invention.The present invention is not limited to the detail stated here, and should retain affiliated field secondary technology personnel as stated in the restriction of claim, is apparent any improvement or remodeling.
Claims (10)
1. the surgical stapling with curved nail ditch is followed closely grooving, described anastomosis staple grooving is arranged on the tissue contact surface of nail anvil, each anastomosis staple grooving is comprised of two grooves, the two ends place that the described groove forming after indent on the tissue contact surface of described nail anvil is positioned at anastomosis staple grooving be into nail face, be positioned at anastomosis staple grooving center for going out nail face, in the both sides of described groove, have side, bottom to have bottom surface;
It is characterized in that:
On the bottom surface of described groove, have from described and enter the curved nail ditch that is ditch shape that nail face goes out to follow closely face described in extending to, the bosom that enters nail face and go out to follow closely face of described curved nail ditch forms the anastomosis staple guide line of anastomosis staple grooving;
At rotary body, take the axis of vertical direction of tissue contact surface of nail anvil as rotation axis, when being close to the anastomosis staple guide line of described anastomosis staple grooving and moving along the anastomosis staple guide line of anastomosis staple grooving with the bottom that enters groove of described rotary body, rotary body formed track curved surface in groove is the curved surface of the curved nail ditch that forms described anastomosis staple grooving.
2. the surgical stapling with curved nail ditch according to claim 1 is followed closely grooving, it is characterized in that, the bottom that enters described nail anvil of described rotary body is curved surface, as described in the entering of rotary body, the radius of curvature of the curved surface of the bottom of nail anvil is R1, the radius of curvature of the anastomosis staple guide line of described anastomosis staple grooving is R2, the radius of curvature of geometric locus of the center of curvature of curved surface of bottom of rotary body of being close to the anastomosis staple guide line of anastomosis staple grooving is R=R1+R2, when rotary body, take the axis of vertical direction of tissue contact surface of described nail anvil is rotation axis, while moving along described geometric locus with the center of curvature of the curved surface of the bottom of rotary body, rotary body formed track curved surface in the groove of nail anvil is the curved surface of the curved nail ditch of the groove that forms described anastomosis staple grooving.
3. the surgical stapling with curved nail ditch according to claim 2 is followed closely grooving, it is characterized in that, the bottom that enters described nail anvil of described rotary body is conical surface, the radius of curvature at place, the pinnacle of the conical surface of the bottom that enters nail anvil of described rotary body is R1=0, the geometric locus on pinnacle of conical surface of bottom of rotary body of being close to the anastomosis staple guide line of described anastomosis staple grooving overlaps with the anastomosis staple guide line of anastomosis staple grooving, when rotary body, take the axis of vertical direction of tissue contact surface of described nail anvil is rotation axis, while moving along the anastomosis staple guide line of anastomosis staple grooving with the pinnacle of the conical surface of the bottom of described rotary body, rotary body formed track curved surface in the groove of nail anvil is the curved surface of the curved nail ditch of the groove that forms described anastomosis staple grooving.
4. the nail of the surgical stapling with curved nail ditch grooving according to claim 1, is characterized in that, the anastomosis staple guide line in the curved nail ditch of two described grooves of same described anastomosis staple grooving is in same plane.
5. the nail of the surgical stapling with curved nail ditch grooving according to claim 1, is characterized in that, the plane at the anastomosis staple guide line place in the curved nail ditch of two described grooves of same described anastomosis staple grooving is parallel to each other.
6. the nail of the surgical stapling with curved nail ditch grooving according to claim 1, is characterized in that, described nail anvil is rounded, and a plurality of described anastomosis staple groovings are staggered at least two circles on the tissue contact surface of circular nail anvil.
7. the surgical stapling with curved nail ditch according to claim 6 nail grooving, is characterized in that, described circular nail anvil compared with the circular nail anvil of the depth ratio of the described anastomosis staple grooving of inner side compared with the depth as shallow of the anastomosis staple grooving in outside.
8. the nail of the surgical stapling with curved nail ditch grooving according to claim 1, is characterized in that, described nail anvil is linear, on the tissue contact surface of the online staple anvil of a plurality of described anastomosis staple grooving, is staggered at least two rows.
9. the nail of the surgical stapling with curved nail ditch grooving according to claim 8, is characterized in that there is cutter groove on described linear nail anvil, and a plurality of described anastomosis staple groovings are arranged in the both sides of the cutter groove of described linear nail anvil.
10. the nail of the surgical stapling with curved nail ditch grooving according to claim 9, is characterized in that, the depth ratio of the described anastomosis staple grooving of the cutter groove on close described linear nail anvil is compared with the depth as shallow of the anastomosis staple grooving of the cutter groove on deviated line staple anvil.
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| CN201410044513.2A CN103750873B (en) | 2014-01-29 | 2014-01-29 | With the surgical stapling nail grooving of curved nail ditch |
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| CN201410044513.2A CN103750873B (en) | 2014-01-29 | 2014-01-29 | With the surgical stapling nail grooving of curved nail ditch |
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| CN104905839A (en) * | 2015-07-01 | 2015-09-16 | 陈宗静 | Nail-pushing seat assembly of intracavitary cutting stapling device |
| CN104921771A (en) * | 2015-07-01 | 2015-09-23 | 陈宗静 | Staple holder assembly of cutter stapler |
| CN105615934A (en) * | 2016-03-14 | 2016-06-01 | 常州智康机械有限公司 | Tubular anastomat |
| CN110799115A (en) * | 2017-06-27 | 2020-02-14 | 爱惜康有限责任公司 | Nail forming pocket arrangement |
| CN112839596A (en) * | 2018-08-20 | 2021-05-25 | 爱惜康有限责任公司 | Manufacturing techniques for surgical stapler anvils |
| US20210346020A1 (en) * | 2018-10-11 | 2021-11-11 | Cilag Gmbh International | Anvil assembly for linear surgical stapler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104905839A (en) * | 2015-07-01 | 2015-09-16 | 陈宗静 | Nail-pushing seat assembly of intracavitary cutting stapling device |
| CN104921771A (en) * | 2015-07-01 | 2015-09-23 | 陈宗静 | Staple holder assembly of cutter stapler |
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| JP7358454B2 (en) | 2018-08-20 | 2023-10-10 | エシコン エルエルシー | Manufacturing technology for surgical stapler anvils |
| US20210346020A1 (en) * | 2018-10-11 | 2021-11-11 | Cilag Gmbh International | Anvil assembly for linear surgical stapler |
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| CN103750873B (en) | 2015-09-09 |
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