CN2448296Y - Digestive vessel shape anastomat stoma - Google Patents

Abstract

The utility model provides an osculating head of a tubular anastomat of the alimentary canal. A tubular anastomat of the alimentary canal can be formed as long as the osculating head is buckled with a device body. A nail bin provided with a suture needle is in a press fit connection with a casing of the nail bin, a needle pushing plate is arranged in the inner cavity of the casing of the nail bin, and an annular sheet is riveted on the end surface of an inner hole of the needle pushing plate. When the utility model is in a use state, the casing of the nail bin can be quickly assembled and disassembled with an excircle lug of a pushing plate seat of the device body through an inner hole lug. The utility model has the advantages of simple structure, simple processing technology, low manufacturing cost, convenient assembly and disassembly, one gun with multiple heads, etc.

Description

The osculating head of digestive tract circular stapler

This utility model belongs to technical field of medical instruments, is specifically related to comprise the osculating head of the surgical operation anastomat that its broken ends of fractured bone of tubulose organs and tissues excision back such as esophagus, intestinal, rectum coincide.

In the prior art, such as 98227541.2 bend pipe surgical operation anastomats by the applicant's application, 982277835.7 bend pipe surgical operation anastomat, but 99227969.0 support the tubular anastomat of bend pipe and the interchangeable Chinese patents such as the tubular anastomat of operation bend pipe of 00219858.4 push pedal holder assembly of needle stand bending, by comprising nail bin, the nail bin housing, needle pushing plate, endless knife and sewing needle etc. are at interior osculating head, and comprise fixed bending tube, handle, has adjusting nut, turn-screw, ejector sleeve, have the chain extension bar of spring and support the driving and reversing mechanism of needle stand etc., with have flexible handle, the locking excitation mechanisms of safety block etc. etc. are formed in two of interior anastomat device bodies part.The structure of this prior art, please join and read attached Fig. 1 and 2, there are following 3 deficiencies at least in it: the one, and the needle stand mandrel 9-1 that supports of said prior art is axial splines with needle pushing plate 3 and cooperates attaching, is in order to satisfy the insertion location of supporting the needle stand mandrel and the guiding requirement of axially advancing and retreat and moving.But because set locating slot on set spline of needle pushing plate 3 centre bores and the circumference thereof all needs the line cutting processing to be shaped, this has increased difficulty to processing technique undoubtedly, has promoted manufacturing cost; The 2nd, the needle pushing plate 16 of said prior art is the apportion metalwork, and put respectively in the needle tray that is contained in nail bin housing 2 inwalls, flange burst by endless knife 17 advances, this makes troubles to installation undoubtedly, and because assembly precision and inevitably assembling carelessness, and the propulsive error of burst, and the total quality of giving anastomat particularly reliability exert an influence; The 3rd, the needle pushing plate 3 of said prior art link via screw thread and positioning pipe 5, and the inner hole sleeve of positioning pipe 5 is equipped with the pipe 6 that only rises, and its cylindrical then is fitted in the endoporus of push pedal seat 4, and the formed thus system of this structure morpheme error is big.And subtract said system morpheme error in order effectively to fall, and improve the total quality of anastomat, fall particularly that to subtract its radial shape potential difference moving, this certainly will effectively improve the processing technique level, has increased manufacturing cost undoubtedly.

It is a kind of simple in structure that the purpose of this utility model is to provide, and processing and assembly process process are good, the functional reliability height, manufacturing cost lower and be suitable for " a rifle bull ", can reduce the osculating head of corrective surgery financial burden, to overcome the deficiency of prior art.

Below in conjunction with accompanying drawing, technical scheme and the embodiment that realizes this utility model purpose is described specifically.

Fig. 1 is that the structure of 98227835.7 leading sections is not intended to;

Fig. 2 is 98227835.7 the sketch map that supports needle stand 9-1 and needle pushing plate 3 spline attaching between the two;

Fig. 3 is the front view of needle pushing plate 3;

Fig. 4 is the vertical view of Fig. 4;

Fig. 5 is structure cutaway view of the present utility model.The number in the figure I be said device body comprise support needle stand.

Fig. 6 is the A-A cutaway view of Fig. 6;

Fig. 7 is the B-B cutaway view of Fig. 6;

Fig. 8 is the front view of needle pushing plate of the present utility model;

Fig. 9 is the left view of Fig. 8;

Figure 10 is the right view of Fig. 8;

Figure 11 is the front view of nail bin housing of the present utility model;

Figure 12 is the left view of Figure 11;

Figure 13 is the A-A cutaway view of Figure 11.

Realize the technical scheme of this utility model purpose, please join and read accompanying drawing 5 to accompanying drawing 13.It is made up of institutes such as nail bin 1, nail bin housing 2, needle pushing plate 3, endless knife 4 and sewing needles 7, and said nail bin housing 2 is by set axial ribs 2-2, put tubulature 2-1 and be interconnected into one with the needle stand mandrel that supports that said digestive tract circular stapler device body is included, and put the endoporus of tubulature 2-1 at mandrel, be provided with the keyway 2-3 that can be complementary with the included mandrel cylindrical keyway of said digestive tract circular stapler device body; And said needle pushing plate 3 is interconnected into one with needle pushing plate 3-1, on the 3-2 of the face of cylinder of needle pushing plate 3, be provided with the axial long slot bore 3-3 that can be complementary with the rib 2-2 that is located on the nail bin housing 2, and said needle pushing plate 3 is located at axial long slot bore 3-3 on the 3-2 of the face of cylinder by it, and be located at rib 2-2 interference fit on the nail bin housing 2, and make needle pushing plate 3 put the inner chamber that is contained in nail bin housing 2, and the endoporus of needle pushing plate 3, then be located at nail bin housing 2 on the mandrel cylindrical of putting tubulature 2-1 close mutually; On the interior hole end surface 3-3 of said needle pushing plate 3, riveted joint has endless knife 4, and said endless knife 4, is matched in clearance respectively with nail bin housing 2, nail bin 1; And the said nail bin 1 that is provided with sewing needle 7, then being interference fit between the two with nail bin housing 2 links, and be located at the end 3-1-1 that pushes pin of the needle pushing plate 3-1 on the needle pushing plate 3, then be set in the set sewing needle slotted eye 1-1 of nail bin 1, at the be connected endoporus of end of the included push pedal seat 6 of nail bin housing 2 and said digestive tract circular stapler device body, at least be provided with 2 energy and the set stubborn mutually projection 2-4 that connects of projection 5-1 of push pedal seat 5 cylindricals, end face when said nail bin housing 2, with said push pedal seat 6 during by said projection 6-1 and the mutual attaching of 2-4, the end face of needle pushing plate 3 then, with the end face of the included push pedal 5 of said digestive tract circular stapler device body, being mutually conflicts cooperates.

An exemplary embodiments of the present utility model and the strong point that is compared with the prior art manifested thereof are: it except endless knife 4 and sewing needle 7 still for the metalwork, other is working of plastics.Be that nail bin housing 2 is put tubulature 2-1 with supporting the needle stand mandrel, both are the plastic monoblock moulding; Needle pushing plate 3 and needle pushing plate 3-1, both are the plastic monoblock moulding; Still be metalwork and be located at the push pedal 5 on one's body of said device, can certainly consider to adopt working of plastics, because it only plays progradation, so this utility model exempted from but its originally can with the guide-localization effect of supporting needle stand mandrel spline fitted, its processing technique is obviously simplified conveniently undoubtedly.Endless knife 4 is taked the plastic hot rivetting method, makes on its end face that is installed in needle pushing plate 3 endoporus, and is matched in clearance with abutment, thereby obviously simplified manufacturing process and installation specification; And needle pushing plate 3-1 is changed into and needle pushing plate 3 whole bonded working of plasticss by the split metalwork of prior art, has not only reduced cost, and when tens of sewing needles 7 of its whole promotion, its linkage, promoting comprehensively property and reliability all are significantly improved.Nail bin 1 is by plastic injection-moulded shaping, and both cooperate binding for pressing it and nail bin housing 2.Also can suitably use a little binding agents where necessary, to strengthen the attaching fastness.

The brief description of this utility model user mode is, select specification of the present utility model respectively for use according to the operation on digestive tract position, select Φ 24 or Φ 26 specifications (external diameter, as follows) for use as esophagus, intestinal is selected Φ 29 specifications for use, and rectum is then selected this utility model of Φ 32 specifications for use.Then this utility model is located at projection 2-4 on the nail bin housing 1 by it, the projection 6-1 with being located at the dirty anastomat device of digestion deferent body on the included push pedal seat 6 is interlockingly connected and gets final product.Here alleged device body, it is alleged as described above, it comprises fixed bending tube, handle, have adjusting nut, turn-screw, ejector sleeve, only rise pipe, have the chain extension bar of spring and support the driving and reversing mechanism of needle stand etc., with the locking excitation mechanism with flexible handle, safety block etc. etc. interior, i.e. the integral body of all parts of anastomat except osculating head general designation.As seen from the above description,, just can select this utility model of different size as required for use, the different digestive tract of different patients position tubular tissue is made anastomosis operation as long as possessed a device body when Surgical Operating Room.Thereby really realized the hope of " a rifle bull ".This has obviously alleviated patient's financial burden undoubtedly.

In sum, that this utility model had was simple in structure, processing technique is simple and easy, production efficiency is high, low cost of manufacture, and parts interchangeability height in addition, it is conspicuous that efficient and convenient characteristics such as reliable are changed in mounting or dismounting.And use this utility model can obviously reduce the corrective surgery expense, reached this utility model its intended purposes.

Claims (1)

1, a kind of osculating head of digestive tract circular stapler, form by nail bin (1), nail bin housing (2), needle pushing plate (3), endless knife (4) and sewing needle institutes such as (7), it is characterized in that, said nail bin housing (2) is by set axial ribs (2-2), put tubulature (2-1) and be interconnected into one with the needle stand mandrel that supports that the device body of digestive tract circular stapler is included, and put the endoporus of tubulature (2-1) at mandrel, be provided with the keyway (2-3) that can be complementary with the included mandrel cylindrical keyway of digestive tract circular stapler; And said needle pushing plate (3) is interconnected into one with needle pushing plate (3-1), on the face of cylinder of needle pushing plate (3) (3-2), be provided with the axial long slot bore (3-3) that can be complementary with the rib (2-2) that is located on the nail bin housing (2), and said needle pushing plate (3) is located at axial long slot bore (3-3) on the face of cylinder (3-2) by it, and be located at nail bin housing (2) and go up rib (2-2) sliding fit, and make needle pushing plate (3) put the inner chamber that is contained in nail bin housing (2), and the endoporus of needle pushing plate (3), then be located at nail bin housing (2) on the mandrel cylindrical of putting tubulature (2-1) close mutually; On the interior hole end surface (3-4) of said needle pushing plate (3), riveted joint has endless knife (4), and said endless knife (4), is matched in clearance respectively with nail bin housing (2), nail bin (1); And the said nail bin (1) that is provided with sewing needle (7), then being interference fit between the two with nail bin housing (2) links, and be located at the end (3-1-1) of pushing pin of the needle pushing plate (3-1) on the needle pushing plate (3), then be set in the set sewing needle slotted eye (1-1) of nail bin (1), at the be connected endoporus of end of the included push pedal seat (6) of nail bin housing (2) and digestive tract circular stapler device body, at least be provided with 2 energy and the set stubborn mutually projection (2-4) that connects of projection (6-1) of push pedal seat (6) cylindrical, end face when said nail bin housing (2), with said push pedal seat (6) by said projection (6-1) with (2-4) mutually during attaching, the end face of needle pushing plate (3) then, with the end face of the included push pedal (5) of digestive tract circular stapler device body, being mutually conflicts cooperates.

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