CN101380243B - Surgery bookbinding apparatus rotary cutter - Google Patents

Abstract

The invention relates to a rotatable tool bit of a binding apparatus used in a surgery department which includes a nail cylinder, an annular tool, a nail pushing seat and a nail cabin; the invention is characterized in that the nail pushing seat and the annular tool are connected by a bearing structure; the bearing structure at least consists of the inner ring of a bearing and the outer ring of the bearing. A close mechanical connection structure is arranged between the annular tool and the nail pushing seat of the rotatable tool bit; when the rotatable tool bit is pushed to move spirally, the friction resistance to the rotation of the annular tool can not be increased; besides, the phenomenon of the annular tool for deviating a central shaft can not appear; the cut shape is completely round, thus avoiding the potential hazard that the tool can not move caused by being clamped and ensuring the successful implement of an operation.

Description

Surgery bookbinding apparatus rotary cutter

Technical field

The present invention relates to the bookbinding device that surgical operation uses, particularly a kind of rotatable surgery belongs to technical field of medical instruments with the incisory rotary cutter of bookbinding device.

Background technology

Surgery binding instrument is to be used for the digestive tract tissue to carry out the medical apparatus and instruments that the broken ends of fractured bone connects, and it is simple to operate, effectively shortens operating time, and significantly is superior to the characteristics of manual suture effect, more and more obtains doctor and patient's approval.The tubular type surgery binding instrument is used to connect the tubular tissue broken ends of fractured bone, when sewing up, excess tissue is excised, but the ring-like cutter of resection organization was directly to advance the formula of directly moving back in the past, and the doctor is the strength that need cost a lot of money in operation, will organize cut-out by impulse force, but still can organize situation about can not cut off fully, the apparatus that withdrawed from of the tissue that does not cut off is broken by force then, causes tearing to damage to anastomosis ring, and consequence is very serious.

Rotary cutting apparatus has appearred in the defective at such, makes original directly advance cutting and become the rotation cutting, has improved the effect of cutting greatly, and the doctor obviously the sensation cutting is very laborsaving.But, existing rotary cutting apparatus is between ring-like cutter and ejector pin seat roller unit to be set, ring-like cutter is connected by two very thin grabs with the ejector pin seat, when grab is pressed ring-like cutter and ejector pin seat very tight, can be subjected to very big frictional force during ring-like cutter rotation and be unfavorable for rotation; When grab is pressed ring-like cutter and ejector pin seat loose, then ring-like cutter is owing to be subjected to self gravitation and the influence of other factors, when cutting and organizing, the phenomenon that the offset slightly central shaft can occur, the shape that cuts out so is not circular completely, when the off-center axle is serious, the potential danger that has cutter to be stuck and can't to move, the smooth implementation of influence operation.

Summary of the invention

The objective of the invention is to overcome the above problem that prior art exists, a kind of surgery bookbinding apparatus rotary cutter is provided.

Purpose of the present invention realizes by following technical solution:

Surgery bookbinding apparatus rotary cutter, it includes nail tube, ring-like cutter, ejector pin seat and nail bin, ring-like cutter, ejector pin seat and nail bin all place within the nail tube, and wherein: the ejector pin seat is connected by bearing arrangement with ring-like cutter, and described bearing arrangement is made up of bearing inner race and bearing outer ring at least.

Purpose of the present invention also can further realize by following technical measures:

Above-mentioned surgery bookbinding apparatus rotary cutter, wherein, described bearing outer ring is fixedlyed connected with the ejector pin seat, be fixed with ring-like cutter on the bearing inner race, and bearing inner race is socketed on the interior guiding mechanism of nail tube, or ring-like broach shell is connected on the interior guiding mechanism of nail tube, constitutes a complete bookbinding apparatus rotary cutter.

Further, surgery bookbinding apparatus rotary cutter, wherein, described bearing outer ring and ring-like cutter are fixed, and bearing inner race is fixedlyed connected with the ejector pin seat, and bearing outer ring is socketed on the guiding mechanism in the nail tube, constitutes a complete bookbinding apparatus rotary cutter.

Further, surgery bookbinding apparatus rotary cutter, wherein, and end the helical orbit that expand tube outer wall be provided with of described guiding mechanism for being provided with in the nail tube, bearing inner race or ring-like cutter are provided with guiding projection, and guiding projection embeds helical orbit and realizes that spiral cooperates.

Further, surgery bookbinding apparatus rotary cutter, wherein, described guiding mechanism is arranged on the helical orbit on the nail tube inwall, and bearing outer ring or ring-like cutter are provided with guiding projection, and guiding projection embeds helical orbit and realizes that spiral cooperates.

Again further, surgery bookbinding apparatus rotary cutter, wherein, described bearing inner race is provided with rivet hole, and ring-like cutter is provided with connecting hole, and bearing inner race and ring-like cutter link into an integrated entity by the rivet punching press.

The invention has the advantages that: surgery bookbinding apparatus rotary cutter, it between ring-like cutter and the ejector pin seat mechanical connecting structure closely, when being subjected to thrust and carrying out screw, can not increase the frictional resistance that ring-like cutter rotation is subjected to, and the phenomenon of off-center axle can not appear in ring-like cutter, the shape that cuts out is circular completely, the potential danger of having avoided cutter to be stuck and can't to move has guaranteed the smooth implementation of performing the operation.

Purpose of the present invention, advantage and characteristics will illustrate by the non-limitative illustration of following preferential embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.

Description of drawings

Fig. 1 is the general illustration of bearing arrangement;

Fig. 2 is the structural representation of nail tube;

Fig. 3 is the partial exploded view of embodiment one;

Fig. 4 is the structural representation of ring-like cutter among the embodiment two;

Fig. 5, the 6th, the sketch map of embodiment three middle (center) bearing structures;

The front schematic view of Fig. 7 bearing arrangement;

The schematic bottom view of Fig. 8 bearing arrangement.

The implication of each Reference numeral is as follows among the figure:

Sequence number	Refer to	Sequence number	Refer to
				1	Thenail tube	2	Bearinginner race
3	Bearing outer ring	4	Ball
				5	Rivet hole	6a、6b、6c	Guiding projection
7	End expandtube	8	Helical orbit
				9	Ring-like cutter	10	Bearing arrangement
11	Theejector pin seat	12	Pad

The specific embodiment

As Fig. 1～surgery bookbinding apparatus rotary cutter shown in Figure 6, it includesnail tube 1, ring-like cutter 9,ejector pin seat 11 and nail bin, ring-like cutter 9,ejector pin seat 11 and nail bin all place within thenail tube 1, it is characterized in that:ejector pin seat 11 is connected by bearingarrangement 10 with ring-like cutter 9, and described bearingarrangement 10 is made up of bearinginner race 2 and bearingouter ring 3 at least.Specifically, bearingouter ring 3 andejector pin seat 11 are fixed with ring-like cutter 9 for fixedlying connected on the bearinginner race 2, and bearinginner race 2 is socketed on the guiding mechanism in thenail tube 1, or ring-like cutter 9 is socketed on the guiding mechanism of following closely in thetube 1, constitutes a complete bookbinding apparatus rotary cutter; Perhaps described bearingouter ring 3 is fixed with ring-like cutter 9, bearinginner race 2 is fixedlyed connected withejector pin seat 11, and bearingouter ring 3 is socketed on the guiding mechanism in thenail tube 1, or ring-like cutter 9 is socketed on the guiding mechanism in thenail tube 1, constitutes a complete bookbinding apparatus rotary cutter.Furthermore, end thehelical orbit 8 that expandtube 7 outer walls be provided with of described guiding mechanism for being provided with in thenail tube 1, bearinginner race 2 or ring-like cutter 9 are provided with guidingprojection 6a, 6b, and guidingprojection 6a, 6b embedhelical orbit 8 and realize that spiral cooperates.Perhaps, described guiding mechanism is thehelical orbit 8 that is arranged onnail tube 1 inwall, and bearingouter ring 3 or ring-like cutter 9 are provided with guidingprojection 6b, and guidingprojection 6b embedshelical orbit 8 and realizes that spiral cooperates.For the ease of being connected, described bearinginner race 2 is provided with rivet hole 4, and ring-like cutter 9 is provided with connecting hole, and bearinginner race 2 links into an integrated entity by the rivet punching press with ring-like cutter 9.Certainly involved connected mode also can adopt screw thread, molding, pin, bonding, welding, clamping etc.If bearing arrangement adopts and is similar to Fig. 7, shown in Figure 8 certainly, bearingouter ring 3 presents the structure of a semi-surrounding, and rivet hole 4 can be arranged on the bearingouter ring 3.

With regard to the easier installation process of the present invention, bearing arrangement and the injection moulding of ejector pin seat link together, thehelical orbit 8 that end expandtube 7 outer walls of guiding mechanism for being provided with in thenail tube 1, bearinginner race 2 is provided with guiding projection 6a, and guiding projection 6a embedshelical orbit 8 makes bearinginner race 2 be socketed in the nail tube 1.Guiding projection 6b can certainly be arranged on described ring-like cutter 9 bottoms, realize cooperating with helical orbit 8.Described bearinginner race 2 is provided withrivet hole 5, and ring-like cutter 9 is provided with connecting hole, and bearinginner race 2 links into an integrated entity by the rivet rivet hot with ring-like cutter 9.

" embodiment one "

As Fig. 1～Fig. 3: the concrete installation situation of this surgery bookbinding apparatus rotary cutter is as follows, at first bearingarrangement 10 and ring-like cutter 9 are fixed together, connected mode can select riveted joint, bonding, be threaded etc., then its molectron is injection-moulded in theejector pin seat 11, even fixedlying connected withejector pin seat 11, bearingouter ring 3 is integral, for the Shooting Technique requirement, between bearingarrangement 10 andejector pin seat 11,pad 12 is set as Fig. 3.Certainly, for manufacturing process commonly used on the preceding market of adaptive surface, bearingouter ring 3 also can adopt connected modes such as bonding or screw thread to be connected with ejector pin seat 11.Then the molectron ofejector pin seat 11, bearingarrangement 10, ring-like cutter 9 is put into togethernail tube 1, even the inlet of thehelical orbit 8 that the embedding of the guiding projection 6a on the bearinginner race 2nail tube 1 interior only expandtube 7 outer walls as shown in Figure 2 are provided with, inhelical orbit 8 is placed intonail tube 1, at this moment the guiding projection 6a ofbearing arrangement 10 is engaged in thehelical orbit 8, at last, nail bin is put intonail tube 1, finish the installation of whole rotary cutter.So far, afterejector pin seat 11 was subjected to upwards thrust, the bearinginner race 2 ofbearing arrangement 10 was under the guiding ofhelical orbit 8, and the ring-like cutter 9 that drives on it to be installed is done the motion that a rotation is risen.

After having finished being connected of nail-head component and bookbinding device remainder, just can finish preoperative apparatus preparation.In conjunction with bookbinding device, this bookbinding apparatus rotary cutter is as follows in the work process of operation process: the operation implementer puts into operating theater instruments in the tissue in affected part, the affected part tissue is combined with apparatus, and the implementer is adjusted to only bookbinding distance to bookbinding device subsequently, and the percussion handle of holding with a firm grip begins percussion.Furthermore, the pushing slice of nail of being arranged on theejector pin seat 11 pushes tissue with nail and is shaped, and feeds alonghelical orbit 8 rotations that end expandtube 7 outer walls at this ring-like cutter 9 of while, passes through the tangent plane of the edge of a knife then with unnecessary cutting tissue.Owing to be connected by bearingarrangement 10 betweenejector pin seat 11 and the ring-like cutter 9, depend on the cooperation of ball 4, ring-like cutter 9 can not be subjected to bigger frictional force when rotating.Simultaneously, make ring-like cutter 9 andejector pin seat 11 have one by bearingarrangement 10 and be connected closely, the phenomenon of off-center axle can not appear in ring-like cutter 9 in the cutting process of operation, makes whole rotation cutting safer, careful.

Moreover as Fig. 7-8: if fix ring-like cutter 9 on the described bearingouter ring 3, bearinginner race 2 is fixedlyed connected withejector pin seat 11, and bearingouter ring cover 3 be connected to end in thenail tube 1 the expand tube outer wall the helical orbit inserts on, can realize such effect equally.

" embodiment two "

As Fig. 4: by bearingarrangement 10 and ring-like cutter 9 are fixed together, make bearingouter ring 3 fixedly connected by injection moulding then withejector pin seat 11, realized fixing between the molectron ofbearing arrangement 10 and ring-like cutter 9 and theejector pin seat 11,ejector pin seat 11 has been put into nail tin together with bearing arrangement and ring-like cutter 9.Be provided with guidingprojection 6b as guide structure in conjunction with the inwall in ring-like cutter 9 bottoms shown in Figure 4, inlet along thehelical orbit 8 that ends expandtube 7 outer walls is embedded into the nail tube inner chamber, and make ring-like cutter 9 and only be rotatably connected between theexpand tube 7, at last, nail bin is put intonail tube 1, finish the installation of whole rotary cutter.At this momentejector pin seat 11 is being subjected to the ring-like cutter 9 of thrust lower bearingstructure 10 drives in the cooperate motion of guiding under doing a rotation rising of guidingprojection 6b withhelical orbit 8.

" embodiment three "

Described bearingouter ring 3 is fixed with ring-like cutter 11, bearinginner race 2 is fixedlyed connected withejector pin seat 11, and in conjunction with shown in Figure 5, on bearingouter ring 3, be provided with guidingprojection 6c, have groove on theejector pin seat 11, guidingprojection 6c is passed, and the fluting that the guidingprojection 6c on the bearingouter ring 3 passes on theejector pin seat 11 is socketed on the guiding mechanism ofnail tube 1 inwall, constitutes a complete bookbinding apparatus rotary cutter.That is to say, embed nail tube inwall by guidingprojection 6c set on the bearingouter ring 3 and be provided with realization spiral cooperation in the helical orbit.

In conjunction with bearing inner race shown in Figure 62 fixing ring-like cuttves 11, bearingouter ring 3 is fixed on theejector pin seat 11, and set guidingprojection 6c embeds set helical orbit inserts on the nail tube inwall on the bearinginner race 2, equally also can reach the effect of rotation cutting.

By using this surgery bookbinding apparatus rotary cutter, it between ring-like cutter 9 and theejector pin seat 11 mechanical connecting structure closely, and can not increase the frictional resistance that ring-like cutter 9 rotations are subjected to, and the phenomenon of off-center axle also can not appear, and the shape that cuts out is circular completely.The potential danger that this has just been avoided cutter to be stuck and can't to move has guaranteed the smooth implementation of performing the operation.

Certainly, more than only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.

Claims (4)

1. surgery bookbinding apparatus rotary cutter, it includes the nail tube, ring-like cutter, ejector pin seat and nail bin, ring-like cutter, ejector pin seat and nail bin all place within the nail tube, it is characterized in that: described ejector pin seat is connected by bearing arrangement with ring-like cutter, described bearing arrangement is made up of bearing inner race and bearing outer ring at least, be provided with guiding mechanism in the described nail tube, described guiding mechanism comprises helical orbit and the guiding projection that connects mutually, described guiding projection embeds helical orbit and realizes that spiral cooperates, and described ejector pin seat and ring-like cutter cooperate realization relative rotary motion between the two by the spiral of described guiding mechanism.

2. surgery bookbinding apparatus rotary cutter according to claim 1, it is characterized in that: described bearing outer ring is fixedlyed connected with the ejector pin seat, be fixed with ring-like cutter on the bearing inner race, and described bearing inner race or endless knife are socketed on the helical orbit of described guiding mechanism, described helical orbit is located at ending on the expand tube outer wall in the described nail tube, and described guiding projection is located on described bearing inner race or the ring-like cutter.

3. surgery bookbinding apparatus rotary cutter according to claim 1, it is characterized in that: fix ring-like cutter on the described bearing outer ring, bearing inner race is fixedlyed connected with the ejector pin seat, and described bearing outer ring or endless knife are socketed in the helical orbit of the guiding mechanism in the nail tube, described helical orbit is located on the described nail tube inwall, and described guiding projection is located on described bearing outer ring or the ring-like cutter.

4. surgery bookbinding apparatus rotary cutter according to claim 1 is characterized in that: described bearing inner race is provided with rivet hole, and ring-like cutter is provided with connecting hole, and bearing inner race and ring-like cutter link into an integrated entity by the rivet punching press.

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