CN204158441U - Pin chamber of straight anastomat structure - Google Patents

Abstract

This utility model provides a kind of pin chamber of straight anastomat structure, comprise staple cartridge body, described staple cartridge body offers push broach groove along its length, in this push broach groove, cutter are installed, the staple cartridge body of described push broach groove both sides is respectively provided with one group of nail, first pushing slice of nail corresponding with two groups of nail is provided with in described staple cartridge body, the staple cartridge body in described push broach groove front is provided with one group of connection nail tilted, the front end of two groups of nail of this connection nail and push broach groove both sides is formed closed in push broach groove front, second pushing slice of nail corresponding with connecting nail is provided with in described staple cartridge body.This utility model can realize comprehensive stitching of push broach groove front tissue, prevents hemorrhage, and structure is simple, adapts with the operating habit of doctor.

Description

Pin chamber of straight anastomat structure

Technical field

This utility model relates to technical field of medical instruments, particularly a kind of pin chamber of straight anastomat structure.

Background technology

Linear seam cutting device is widely used in sewing up and cutting for wound suture, interior tissue in surgical operation, has and sews up and cutting two functions, while carrying out wound suture, by unnecessary cutting tissue.Linear seam cutting device generally comprises upper and lower two clamps, be oppositely arranged on nail anvil and the nail bin of upper and lower clamp front end, be located in nail bin and also can move ejector pin bar and cutting knife relative to nail bin simultaneously, transversely arrangedly in nail bin be provided with pushing slice of nail and suturing nail, ejector pin bar promotes pushing slice of nail and pushes suturing nail to nail anvil to sew up successively in order, and the tissue between nail bin and nail anvil cuts off by cutting knife.But the existing linear cutting anastomat in market, cutting and suturing nail are all transversely arranged, but from clinical application angle, the unstitched situation in top cannot be evaded after laterally sewing up always, cause hemorrhage, the nail of parallel arrangement that what existing nail bin structure was all formed is all, form parallel stitching thread during stitching, have no idea stitching thread to form intersection point, cause like this and forever have a direction to there will be bleeding, bring operation risk to patient, doctor brings difficult treatment.

Utility model content

The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of pin chamber of straight anastomat structure, when performing the operation, can be coupled together the front end of two Parallel sew lines, realizing the stitching of front end tissue, preventing hemorrhage.

For achieving the above object and other relevant objects, this utility model provides a kind of pin chamber of straight anastomat structure, comprise staple cartridge body, described staple cartridge body offers push broach groove along its length, in this push broach groove, cutter are installed, the staple cartridge body of described push broach groove both sides is respectively provided with one group of nail, first pushing slice of nail corresponding with two groups of nail is provided with in described staple cartridge body, the staple cartridge body in described push broach groove front is provided with one group of connection nail tilted, the front end of two groups of nail of this connection nail and push broach groove both sides is formed closed in push broach groove front, second pushing slice of nail corresponding with connecting nail is provided with in described staple cartridge body.

Adopt said structure, between traditional two groups of parallel nail, be provided with one group connect nail, two groups of nail front ends of this connection nail and push broach groove both sides are formed closed in push broach groove front, it can be multiple for connecting nail, suturing nail in certain two groups of parallel nail is promoted by the first traditional pushing slice of nail, in use, two groups of parallel nail correspondences form two groups of parallel stitching thread, and the connection nail correspondence being positioned at push broach front of the slot forms a stitching thread bending or tilt, two parallel stitching thread front ends are coupled together, form closed stitching thread, thus by the tissue apposition in push broach groove front, prevent hemorrhage, the mode that this kind is obliquely installed, relative to vertical suturing nail, area is sewed up larger in sewing process, further reduce hemorrhage probability.The suturing nail connected in nail is promoted by the second pushing slice of nail, and the second pushing slice of nail and the action simultaneously of the first pushing slice of nail realize sewing up, and such structure and the operating habit of doctor adapt.Easy to operate, there is no additional move.Wherein said fore-and-aft direction, relative to operator, namely nail bin be oriented front.

As preferably: two groups of nail of described push broach groove both sides are parallel with push broach groove, and described connection nail is two, two described connected nail holes form splayeds, and two front sides connecting nail are drawn close mutually, and rear side is respectively near two groups of nail of push broach groove both sides.

Connected nail hole forms splayed: while reaching sewing effect, convenient cutting, due to splayed, during secondary cut, can be easy to pass through from the centre of the Eight characters, do not need to cut staple, reduce Cutting Drag, be convenient to cutting, relative to vertically disposed connection nail, more convenient, have more practicality.

As preferably: be provided with ejector pin groove in the staple cartridge body in described push broach groove front, this ejector pin groove is corresponding with described connection nail, and be communicated with described push broach groove, described second pushing slice of nail is arranged in this ejector pin groove independently, described second pushing slice of nail rear portion is provided with pushing and withstanding block, described cutter front portion is provided with the ejection part coordinated with described pushing and withstanding block, and when described cutter move forward to the second pushing slice of nail, described ejection part promotes the second pushing slice of nail by pushing and withstanding block and moves upward.

During use, two groups of parallel nail correspondences form two groups of parallel stitching thread, and the connection nail correspondence being positioned at push broach front of the slot forms splay stitching thread, two parallel stitching thread front ends are coupled together, form closed stitching thread, thus by the tissue apposition in push broach groove front, prevent hemorrhage.And the suturing nail connected in nail is promoted by the second pushing slice of nail, namely suturing nail is arranged in suturing nail mounting groove, while cutter are pushed ahead, by the cooperation of ejection part and pushing and withstanding block, suturing nail is upwards released by the second pushing slice of nail, realize connecting the closed of nail inseam dowel, such structure and the operating habit of doctor adapt.Easy to operate, there is no additional move.

As preferably: the profile of described second pushing slice of nail adapts with the described nail that is connected, this the second pushing slice of nail upper end is provided with suturing nail mounting groove, face, described pushing and withstanding block posterior end is low early and high after inclined plane, and the ejection part of described cutter front portion is low early and high after inclined plane.

During normality, the second pushing slice of nail is positioned at ejector pin groove lowest part due to action of gravity, moves upward when the second pushing slice of nail is cut cutter promotion, and ejector pin groove one side also plays guide effect.Realize growing steadily of the second pushing slice of nail by the inclined plane cooperatively interacted, sewing effect is good.

As preferably: described pushing and withstanding block is voussoir or trapezoid block, and described ejection part is wedge shape.

As preferably: the angle between two described connection nail is 30 ° to 90 °.

As preferably: described connection nail is two, two described connected nail holes form V-shaped, and two rear sides connecting nail are drawn close mutually, and front side is respectively near two groups of nail of push broach groove both sides.

As preferably: described connection nail is one, and this connection nail is obliquely installed relative to described push broach groove, and the both sides of this connection nail are respectively near two groups of nail front ends of push broach groove both sides.

As preferably: the contour shape of described connection nail is identical with the contour shape of the nail of push broach groove both sides.

As preferably: the first pushing slice of nail of described second pushing slice of nail and nail front end, push broach groove both sides is one-body molded.

As mentioned above, the beneficial effects of the utility model are: structure is simple, in use, two parallel stitching thread front ends can be coupled together, form closed stitching thread in push broach groove front, thus by the tissue apposition in push broach groove front, prevent hemorrhage, operating mechanism is simple and convenient, meets doctor's use habit.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment 1;

Fig. 2 is the A direction view of this utility model embodiment 1;

Fig. 3 is the structural representation of the second pushing slice of nail in this utility model embodiment 1;

Fig. 4 is the top view of the second pushing slice of nail in this utility model embodiment 1;

Fig. 5 is the front view of the second pushing slice of nail in Fig. 4;

Fig. 6 is the right view of the second pushing slice of nail in Fig. 4;

Fig. 7 is the structural representation of cutter in this utility model embodiment 1;

Fig. 8 is the another kind of structure of this utility model embodiment 1;

Fig. 9 is the structural representation of this utility model embodiment 2;

Figure 10 is the structural representation of this utility model embodiment 3.

Piece mark explanation

1 staple cartridge body

2 push broach grooves

3 cutter

31 ejection parts

4 nail

5 connect nail

6 second pushing slice of nail

61 suturing nail mounting grooves

7 pushing and withstanding blocks

8 ejector pin grooves

Detailed description of the invention

By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present utility model and effect easily.

Embodiment 1

Wherein said front end, rear end, front portion, rear portion take operator as benchmark, and nail bin is rear end near one end of operator, and the one end away from operator is front end.

As shown in Figure 1, a kind of pin chamber of straight anastomat structure, comprise staple cartridge body 1, staple cartridge body 1 offers push broach groove 2 along its length, in this push broach groove 2, cutter are installed, the staple cartridge body 1 of push broach groove 2 both sides is respectively provided with one group of transversely arranged nail 4, two groups of nail 4 of push broach groove 2 both sides are parallel with push broach groove 2, the staple cartridge body 1 in push broach groove 2 front is provided with the connection nail 5 of one group of oblique arrangement, connecting nail 5 is two, two connect nail 5 and form splayed structure, two connect nail 5 and are formed closed with two groups of nail 4 of push broach groove 2 both sides in push broach groove 2 front end, can by the tissue apposition in push broach groove 2 front when performing the operation, prevent hemorrhage, the contour shape connecting nail 5 is identical with the contour shape of the nail 4 of push broach groove 2 both sides.First pushing slice of nail corresponding with two groups of nail 4 of push broach groove 2 both sides is provided with in staple cartridge body 1;

As shown in Figures 2 to 7, connect in the staple cartridge body 1 below nail 5 and be provided with ejector pin groove 8, this ejector pin groove 8 is communicated with described push broach groove 2, second pushing slice of nail 6 is set in this ejector pin groove 8, second pushing slice of nail 6 can move up and down along ejector pin groove 9, this second pushing slice of nail 6 forms splayed structure by two rectangular blocks, the thickness of rectangular block the right and left is less than the thickness at middle part, the upper end of these two rectangular blocks is provided with the suturing nail mounting groove 61 of bar shaped, in suturing nail mounting groove 61, suturing nail is installed, second pushing slice of nail 6 rear portion is provided with pushing and withstanding block 7, this pushing and withstanding block 7 and the second pushing slice of nail 6 one-body molded, this pushing and withstanding block 7 cross section is trapezoidal, its inclined plane is towards the back lower place, cutter 3 front portion is provided with the ejection part 31 coordinated with pushing and withstanding block 7, the rear lower of pushing and withstanding block 7 is low early and high after inclined-plane, ejection part 31 front end face is low early and high after inclined-plane, when cutter 3 move forward to the second pushing slice of nail 6, ejection part 31 promotes the second pushing slice of nail 6 by pushing and withstanding block 7 and moves upward.

In other embodiments, single second pushing slice of nail 6 of single connection nail 5 correspondence can be identical with the first pushing slice of nail structure, and first pushing slice of nail corresponding with nail 4 front end, push broach groove 2 both sides is one-body molded, makes its Stability Analysis of Structures, convenient operation.

Fig. 8 is the another kind of structure of the present embodiment, two groups of parallel nail 4 front ends are at a distance of nearer, and two angles connected between nail 5 are less, it is more firm that such mode makes push broach groove 2 front sew up, and the angle that in other embodiments, two connect between nail 5 can be 30 °, 60 ° etc.

Connection nail 5 forms the mode that splayed is obliquely installed, and relative to vertical suturing nail, sews up area larger in sewing process, further reduce hemorrhage probability, while reaching sewing effect, convenient cutting, due to splayed, during secondary cut, can be easy to pass through from the centre of the Eight characters, do not need to cut staple, reduce Cutting Drag, be convenient to cutting, relative to vertically disposed connection nail, more convenient, have more practicality.

During use, nail bin structure installment is in lower clamp front end, the nail anvil coordinated with it is installed in upper clamp front end, nail 4 all installs suturing nail with being connected in nail 5, suturing nail in two groups of parallel nail 4 is promoted by the first pushing slice of nail, the suturing nail connected in nail 5 is promoted by the second pushing slice of nail 6, two groups of parallel nail 4 correspondences form two groups of parallel horizontal stitching thread, and connection nail 5 correspondence being positioned at push broach groove 2 front end is formed to tilt or bending stitching thread, two parallel stitching thread front ends are coupled together, form closed stitching thread, thus by the tissue apposition in push broach groove 2 front, prevent hemorrhage.

Embodiment 2

As shown in Figure 9, the difference of the present embodiment and embodiment 1 is, connecting nail 5 is one, and be obliquely installed relative to described push broach groove 2, the both sides of this connection nail 5, respectively near two groups of nail 4 front ends of push broach groove 2 both sides, connecting nail 5 and are formed closed with two groups of nail 4 of push broach groove 2 both sides in push broach groove 2 front end, forming closed stitching thread when performing the operation in push broach groove 2 front end, can, by the tissue apposition in push broach groove 2 front, prevent hemorrhage.The structure of the second pushing slice of nail 6 is according to the set-up mode change connecting nail 5, and similar to structure in embodiment 1, all the other structures are all identical with embodiment 1.

Embodiment 3

As shown in Figure 10, the present embodiment is with the difference of embodiment 1: being connected nail 5 is two, two front sides connecting nail 5 are respectively near two groups of nail 4 front ends of push broach groove 2 both sides, two rear sides connecting nail 5 are drawn close mutually, two connect nail 5 and are arranged in V-shaped structure, two connect nail 5 and are formed closed with two groups of nail 4 of push broach groove 2 both sides in push broach groove 2 front end, closed stitching thread is formed in push broach groove 2 front end when performing the operation, can, by the tissue apposition in push broach groove 2 front, prevent hemorrhage.The structure of the second pushing slice of nail 6 is according to the set-up mode change connecting nail 5, and similar to structure in embodiment 1, all the other structures are all identical with embodiment 1.

Above-described embodiment is the principle of illustrative utility model and effect thereof only, but not for limiting this utility model, any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that this utility model discloses, must be contained by claim of the present utility model.

Claims (10)

1. a pin chamber of straight anastomat structure, comprise staple cartridge body, described staple cartridge body offers push broach groove along its length, in this push broach groove, cutter are installed, the staple cartridge body of described push broach groove both sides is respectively provided with one group of nail, first pushing slice of nail corresponding with two groups of nail is provided with in described staple cartridge body, it is characterized in that: the staple cartridge body in described push broach groove front is provided with one group of connection nail tilted, the front end of two groups of nail of this connection nail and push broach groove both sides is formed closed in push broach groove front, second pushing slice of nail corresponding with connecting nail is provided with in described staple cartridge body.

2. pin chamber of straight anastomat structure according to claim 1, it is characterized in that: two groups of nail of described push broach groove both sides are parallel with push broach groove, described connection nail is two, two described connected nail holes form splayed, two front sides connecting nail are drawn close mutually, and rear side is respectively near two groups of nail of push broach groove both sides.

3. pin chamber of straight anastomat structure according to claim 2, it is characterized in that: in the staple cartridge body in described push broach groove front, be provided with ejector pin groove, this ejector pin groove is corresponding with described connection nail, and be communicated with described push broach groove, described second pushing slice of nail is arranged in this ejector pin groove independently, described second pushing slice of nail rear portion is provided with pushing and withstanding block, described cutter front portion is provided with the ejection part coordinated with described pushing and withstanding block, when described cutter move forward to the second pushing slice of nail, described ejection part promotes the second pushing slice of nail by pushing and withstanding block and moves upward.

4. pin chamber of straight anastomat structure according to claim 3, it is characterized in that: the profile of described second pushing slice of nail adapts with the described nail that is connected, this the second pushing slice of nail upper end is provided with suturing nail mounting groove, face, described pushing and withstanding block posterior end is low early and high after inclined plane, and the ejection part of described cutter front portion is low early and high after inclined plane.

5. pin chamber of straight anastomat structure according to claim 3, is characterized in that: described pushing and withstanding block is voussoir or trapezoid block, and described ejection part is wedge shape.

6. pin chamber of straight anastomat structure according to claim 2, is characterized in that: the angle between two described connection nail is 30 ° to 90 °.

7. pin chamber of straight anastomat structure according to claim 1, is characterized in that: described connection nail is two, and two described connected nail holes form V-shaped, and two rear sides connecting nail are drawn close mutually, and front side is respectively near two groups of nail of push broach groove both sides.

8. pin chamber of straight anastomat structure according to claim 1, is characterized in that: described connection nail is one, and this connection nail is obliquely installed relative to described push broach groove, and the both sides of this connection nail are respectively near two groups of nail front ends of push broach groove both sides.

9. pin chamber of straight anastomat structure according to claim 1, is characterized in that: the contour shape of described connection nail is identical with the contour shape of the nail of push broach groove both sides.

10. pin chamber of straight anastomat structure according to claim 1, is characterized in that: described second pushing slice of nail is consistent with the structure of the first pushing slice of nail, and the first pushing slice of nail of nail front end, described push broach groove both sides is one-body molded.