CN207041544U - A kind of intracavitary vertical cut push broach mechanism - Google Patents
A kind of intracavitary vertical cut push broach mechanism Download PDFInfo
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- CN207041544U CN207041544U CN201720182441.7U CN201720182441U CN207041544U CN 207041544 U CN207041544 U CN 207041544U CN 201720182441 U CN201720182441 U CN 201720182441U CN 207041544 U CN207041544 U CN 207041544U
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- push broach
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Abstract
It the utility model is related to a kind of intracavitary vertical cut push broach mechanism.Intracavitary vertical cut push broach mechanism, there is the first cutting edge and the second cutting edge.A blade extends obliquely from front to back in first cutting edge and the second cutting edge, and another blade extends obliquely from front to back.The rear portion of first cutting edge and the rear portion of the second cutting edge are crossed to form V-shape cutting edge.The utility model carries out scissor type cutting with V-shape cutting edge to tissue.This V-shape cutting edge structure can collapse tissue during tissue is cut.And do not pushed by the tissue that above cutting edge is cut off by the first cutting edge 101 and the second cutting edge 102 to the root of V-shape cutting edge, openning is above cut open by the first cutting edge 101 and the second cutting edge 102 due to being organized in, so just can easily be cut very much in the root of V-shape cutting edge.Structure described in the utility model reduces the percussion force that intracavitary vertical cut push broach mechanism advances needed for cutting, facilitates doctor's operation, and then reduce the risk of operation.
Description
Technical field
The utility model belongs to medical instruments field, and in particular to a kind of vertical cut push broach mechanism of surgical operation anastomat.
Background technology
Intracavitary linear cutting anastomat is the equipment of the replacement manual suture medically used, and it is widely used in surgery hand
It is used for wound suture, interior tissue suture and cutting in art.Typical linear cutting anastomat such as United States Patent (USP) US5129570 institutes
Disclose, main operational principle is to carry out detachment to tissue using titanium nail or coincide, and similar to stapler, carries out the same of wound suture
When, by unnecessary cutting tissue.This linear cutting anastomat is presently mainly to promote apparatus to carry out human body by percussion manually
The detachment of tissue and suture.Such linear cutting anastomat generally comprises upper and lower two clamps, and for being opened and closed upper and lower pincers
The upper and lower closed handle of folder, the nail anvil and nail bin of upper and lower clamp front end are oppositely arranged on, and can be simultaneously relative in nail bin
The ejector pin bar and cutting knife of the nail bin movement, and for driving the power percussion mechanism of ejector pin bar and the cutting knife movement.Nail
Suturing nail is disposed with storehouse, ejector pin bar promotes pushing slice of nail and pushes suturing nail to nail anvil, cutting knife and then general in order successively
Tissue cut-out between nail bin and nail anvil.
In above-mentioned detachment and sewing process, its cut push broach be directly affected in operating process cutting effect to close weight
The part wanted.
At present, the most cutting push broach head of in the market is all integral type.As shown in figure 1, the push broach of this structure
200 be that the almost vertical tissue that pushes is cut at work.Its sharpness to blade 201 requires especially high, so as to increase
Add manufacture difficulty, improve production cost.Further, since the blade 201 of push broach 200 is line organization's work, cutting
While it can push tissue and is moved along, extrude metaplasia, effective cutting length is shortened.And when cut tissue
, it is necessary to which very big percussion force promotes push broach 200 when very thick, the operation to doctor is made troubles, or even can not complete to hit
Hair.So as to cause operation to be normally carried out.
Utility model content
The technical problems to be solved in the utility model be to provide it is a kind of it is simple in construction, cutting tissue needed for percussion force it is small,
Labour-saving intracavitary vertical cut push broach mechanism.
In order to solve the above-mentioned technical problem, a kind of technical scheme of the utility model use is：A kind of intracavitary vertical cut push broach
Mechanism, in surgical operation to the straight cuts of tissue.The intracavitary vertical cut push broach mechanism has the first cutting edge and the
Two cutting edges.A blade extends obliquely from front to back in first cutting edge and the second cutting edge, another
Blade extends obliquely from front to back.The rear portion of first cutting edge and the rear portion of the second cutting edge are crossed to form V words
Type cutting edge.When intracavitary vertical cut push broach mechanism carries out cutting separation to tissue, the V-shape cutting edge is towards organizer to be cut
To, intracavitary vertical cut push broach mechanism stress elapses forward, first cutting edge and the second cutting edge can respectively with
The tissue contacts, and a blade cuts described group obliquely from front to back in first cutting edge and the second cutting edge
Knit, another blade cuts the tissue obliquely from front to back.First cutting edge and the second cutting edge are being cut
Not cut tissue is extruded into push backward during tissue, first cutting edge and the second cutting edge intersect
Place forms shearing force and cuts the not cut tissue.
Preferably, the intracavitary vertical cut push broach mechanism includes push broach component, and the push broach component includes being bonded to each other fixation
First cutting push broach and second cutting push broach, it is described first cutting push broach on put the first edge on a knife or a pair of scissors to form the first cutting edge, described second
Put the first edge on a knife or a pair of scissors to form second cutting edge in cutting push broach.
Further, the first cutting push broach and the second cutting push broach are that one side puts the first edge on a knife or a pair of scissors, the first cutting push broach
Put the first edge on a knife or a pair of scissors to form the first cutting edge along backwards to the direction of the second cutting push broach, the second cutting push broach pushes away along backwards to the first cutting
Put the first edge on a knife or a pair of scissors to form second cutting edge in the direction of knife.
Further, the front portion of the first cutting push broach and the second cutting push broach offers the groove facing forward that is open,
The first cutting push broach puts the first edge on a knife or a pair of scissors to form first cutting edge in the inside upper part of its groove, and the second cutting push broach exists
The lower inside of its groove puts the first edge on a knife or a pair of scissors to form second cutting edge.
Specifically, the first cutting push broach has the first cutter head and the first blade, first cutting edge is opened in
On first cutter head；The second cutting push broach has the second cutter head and the second blade, and second cutting edge is opened in second
On cutter head.
Specifically, first cutter head and the second cutter head are bonded to each other, the top of first cutter head and the second cutter head leads to
Cross latch segment mutually to fasten, the middle part of first cutter head and the second cutter head mutually rivets fastening, first knife by rivet
The bottom of head and the second cutter head is mutually fastened by stay.
Specifically, the top of first cutter head and the second cutter head offers the upper through hole coordinated with latch segment, the lock
Tight block is located in be interference fitted with upper through hole in through hole and the top of first cutter head and the second cutter head is fixed together.
Specifically, the bottom of first cutter head and the second cutter head has neck and buckle, the button successively from up to down
Portion is wider than neck, and the edge that the neck is connected with buckle forms step, offers on the stay and matches somebody with somebody with neck and buckle
The lockhole of conjunction, the buckle are only capable of passing through lockhole in a constant bearing, when the buckle passes through lockhole, rotational lock piece, lockhole
The neck of first cutter head and the second cutter head can be fixedly clamped, the buckle of first cutter head and the second cutter head is against stay
Bottom.
Further, first blade is located at the rear portion of the first cutter head, and first blade is elongated from front to back
Extension, second blade are located at the rear portion of the second cutter head, and second blade is elongated to be extended from front to back, and described first
Groove is offered on blade and the second blade.
Further, first blade is mutually fastenedly connected with the second blade rear portion by a contiguous block.
It is referred to above to the inferior noun of locality upper all around, be the normal use in the intracavitary vertical cut push broach mechanism
When orientation make to define.Before being close to tissue direction to be cut, after being away from tissue direction to be cut.
The scope of the utility model, however it is not limited to the technical scheme that the particular combination of above-mentioned technical characteristic forms, while
The other technical schemes for being combined and being formed by above-mentioned technical characteristic or its equivalent feature should be covered.Such as features described above
With it is disclosed herein（But it is not limited to）The technical scheme that technical characteristic with similar functions is replaced mutually and formed
Deng.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model
Described intracavitary vertical cut push broach mechanism is cut out with the structure of the i.e. similar scissor shearing integral type of V-shape cutting edge to tissue
Scissors are cut.This V-shape cutting edge structure can collapse tissue during tissue is cut.And do not cut off by above cutting edge
Tissue is pushed by the first cutting edge 101 and the second cutting edge 102 to the root of V-shape cutting edge, due to being organized in above
Through having cut open openning by the first cutting edge 101 and the second cutting edge 102, so just can be very light in the root of V-shape cutting edge
Pine is cut.Structure described in the utility model reduces the percussion force that intracavitary vertical cut push broach mechanism advances needed for cutting, side
Doctor's operation, and then reduce the risk of operation.
Brief description of the drawings
Fig. 1 is existing intracavitary vertical cut push broach mechanism dimensional structure diagram；
Fig. 2 is the dimensional structure diagram of the utility model intracavitary vertical cut push broach mechanism one；
Fig. 3 is another dimensional structure diagram of the utility model intracavitary vertical cut push broach mechanism；
Fig. 4 is the front view of the utility model intracavitary vertical cut push broach mechanism；
Fig. 5 is the explosive view of the utility model intracavitary vertical cut push broach mechanism；
Fig. 6 is the part explosive view of the utility model intracavitary vertical cut push broach mechanism；
Fig. 7 is the front view of stay；
Wherein：1st, the first cutting push broach；2nd, the second cutting push broach；3rd, latch segment；4th, rivet；5th, stay；6th, contiguous block；
11st, the first cutter head；12nd, the first blade；21st, the second cutter head；22nd, the second blade；101st, the first cutting edge；102nd, the second cutting
Blade；103rd, groove；104th, upper through hole；105th, neck；106th, buckle；107th, groove.
Embodiment
As shown in Figures 2 to 6, a kind of intracavitary vertical cut push broach mechanism described in the utility model, for right in surgical operation
The straight cuts of tissue.Described intracavitary vertical cut push broach mechanism can be arranged on linear cutting anastomat and use.
The intracavitary vertical cut push broach mechanism includes push broach component, latch segment 3, stay 5 and contiguous block 6.The push broach group
Part includes being bonded to each other the first fixed cutting cutting push broach 2 of push broach 1 and second.In the present embodiment, the first cutting push broach 1
With the second cutting push broach 2 in the form of sheets, both closely can vis-a-vis fit together.The first cutting push broach 1 has
First cutter head 11 and the first blade 12 positioned at the rear portion of the first cutter head 11, the second cutting push broach 2 have the He of the second cutter head 21
The second blade 22 positioned at the rear portion of the second cutter head 21.First cutter head 11 is relative with the second cutter head 21 to be bonded, the first blade 12 and the
Two blades, 22 relative fitting.The top of the cutter head 21 of first cutter head 11 and second is mutually fastened by latch segment 3, and described first
The middle part of the cutter head 21 of cutter head 11 and second is fastened by the mutually riveting of rivet 4, under the cutter head 21 of the first cutter head 11 and second
Portion is mutually fastened by stay 5.
Specifically, the top of the cutter head 21 of the first cutter head 11 and second offers the upper through hole coordinated with latch segment 3
104.The latch segment 3 is located in through hole 104 and is interference fitted with upper through hole 104 by the cutter head of the first cutter head 11 and second
21 top is fixed together.
The bottom of the cutter head 21 of first cutter head 11 and second has neck 105 and buckle 106 successively from up to down.It is described
Buckle 106 is wider than neck 105, and the edge that the neck 105 is connected with buckle 106 forms step, is offered on the stay 5
The lockhole 51 coordinated with neck 105 and buckle 106.The buckle 106 is only capable of passing through lockhole 51 in a constant bearing, when the button
Portion 106 passes through lockhole 51, and rotational lock piece 5 makes lockhole 51 and the staggered positions of buckle 106, the cutter head of the first cutter head 11 and second
21 buckle 106 is fastened can be by the first cutter head 11 and the neck of the second cutter head 21 in the bottom of stay 5, the lockhole 51
105 are fixedly clamped, and then the first cutter head 11 and the second cutter head 21 are overall in one.5 and first cutter head of stay 11 second
The near vertical of cutter head 12, the bottom of the stay 5 is in cambered surface.The latch segment 3 and stay 5 can also play the guiding role,
So that the intracavitary vertical cut push broach mechanism advances along the path determined.
First blade 12 is located at the rear portion of the first cutter head 11, and first blade 12 is elongated to be prolonged from front to back
Stretch.Second blade 22 is located at the rear portion of the second cutter head 21, and second blade 22 is elongated to be extended from front to back.It is described
Groove 107 is offered on first blade 12 and the second blade 22.The rear portion of first blade, 12 and second blade 22 passes through one
Contiguous block 6 is mutually fastenedly connected.The groove 107 opens up the weight that can mitigate push broach component, makes push broach component advance institute
The percussion force needed is small.The contiguous block 6 can facilitate the connection of intracavitary vertical cut push broach mechanism and other drive mechanisms.
The groove 103 facing forward that is open is offered on the cutter head 21 of first cutter head 11 and second.First cutting pushes away
Knife 1 puts the first edge on a knife or a pair of scissors to form first cutting edge 101 in the inside upper part of its groove 103, and the second cutting push broach 2 is in its groove
103 lower inside puts the first edge on a knife or a pair of scissors to form second cutting edge 102.The first cutting push broach 1 and second cuts push broach 2 and is
One side puts the first edge on a knife or a pair of scissors, and first cutting edge 101 opens up along backwards to the direction of the second cutting push broach 2, second cutting edge 102
Opened up along backwards to the direction of the first cutting push broach 1.First cutting edge 101 extends obliquely from front to back, and described second
Cutting edge 102 extends obliquely from front to back, behind the rear portion of first cutting edge 101 and the second cutting edge 102
Portion is crossed to form V-shape cutting edge.
When intracavitary vertical cut push broach mechanism, which pushes ahead, carries out cutting separation to tissue, the V-shape cutting edge is towards to be cut
The tissue direction cut, intracavitary vertical cut push broach mechanism stress elapse forward, the cutter of the first cutting edge 101 and second
Sword 102 can contact with the tissue respectively.First cutting edge 101 cuts the tissue obliquely from front to back, the
Two cutting edges 102 cut the tissue, the cutting edge 102 of the first cutting edge 101 and second obliquely from front to back
Not cut tissue is extruded into push backward during tissue is cut, is pushed being organized in V-shape cutting edge root
Cut under the shearing force of the V-shape cutting edge.
Intracavitary vertical cut push broach mechanism described in the utility model is similar scissor shearing integral type with V-shape cutting edge
Structure to carry out scissor type cutting to tissue.This V-shape cutting edge structure can collapse tissue during tissue is cut.And
Do not pushed away by the tissue that above cutting edge is cut off by the root of the first cutting edge 101 and the second cutting edge 102 to V-shape cutting edge
Send, openning has above been cut open by the first cutting edge 101 and the second cutting edge 102 due to being organized in, so in V-shape
The root of cutting edge just can easily be cut very much.Just as tailor's fabric dividing, an osculum is first cut, as long as then scissors mouth is forward
Slide, hardly take that what power can just cut apart with a knife or scissors cloth.It can be seen that such structure reduces the advance cutting of intracavitary vertical cut push broach mechanism
Required percussion force, doctor's operation is facilitated, and then reduce the risk of operation.Push broach component is made up of two push broach, blade
Open up more convenient, cost is cheap, and to compare existing edge structure low for the sharpness requirement to blade cutting edge, reduces
Put the first edge on a knife or a pair of scissors difficulty, convenient production.
As described above, we are illustrated fully according to objective of the present utility model, but the utility model not limits to
In above-described embodiment and implementation.The scope that the practitioner of correlative technology field can permit in technological thought of the present utility model
It is interior to carry out different change and implementation.
Claims (10)
1. a kind of intracavitary vertical cut push broach mechanism, in surgical operation to the straight cuts of tissue, it is characterised in that：The intracavitary
Vertical cut push broach mechanism has the first cutting edge（101）With the second cutting edge（102）, first cutting edge（101）With
Second cutting edge（102）In a blade extend obliquely from front to back, another blade extends obliquely from front to back, institute
State the first cutting edge（101）Rear portion and the second cutting edge（102）Rear portion be crossed to form V-shape cutting edge, when intracavitary is straight
When cutting push broach mechanism cutting separation is carried out to tissue, the V-shape cutting edge is towards tissue direction to be cut, the intracavitary vertical cut
Push broach mechanism stress elapses forward, first cutting edge（101）With the second cutting edge（102）Can respectively with described group
Knit contact, first cutting edge（101）With the second cutting edge（102）In a blade cut institute obliquely from front to back
Tissue is stated, another blade cuts the tissue, first cutting edge obliquely from front to back（101）With the second cutter
Sword（102）Not cut tissue is extruded into push, first cutting edge backward during tissue is cut（101）With
Second cutting edge（102）Intersection form shearing force and cut the not cut tissue.
A kind of 2. intracavitary vertical cut push broach mechanism according to claim 1, it is characterised in that：The intracavitary vertical cut push broach mechanism
Including push broach component, the push broach component includes being bonded to each other the first fixed cutting push broach（1）With the second cutting push broach（2）,
The first cutting push broach（1）On put the first edge on a knife or a pair of scissors to form the first cutting edge（101）, the second cutting push broach（2）On put the first edge on a knife or a pair of scissors to be formed
Second cutting edge（102）.
A kind of 3. intracavitary vertical cut push broach mechanism according to claim 2, it is characterised in that：The first cutting push broach（1）
With the second cutting push broach（2）It is that one side puts the first edge on a knife or a pair of scissors, the first cutting push broach（1）Along backwards to the second cutting push broach（2）Direction
Put the first edge on a knife or a pair of scissors to form the first cutting edge（101）, the second cutting push broach（2）Along backwards to the first cutting push broach（1）Direction put the first edge on a knife or a pair of scissors
Form second cutting edge（102）.
A kind of 4. intracavitary vertical cut push broach mechanism according to claim 3, it is characterised in that：The first cutting push broach（1）
With the second cutting push broach（2）Front portion offer the groove facing forward of being open（103）, the first cutting push broach（1）It is recessed at its
Groove（103）Inside upper part put the first edge on a knife or a pair of scissors to form first cutting edge（101）, the second cutting push broach（2）In its groove
（103）Lower inside put the first edge on a knife or a pair of scissors to form second cutting edge（102）.
A kind of 5. intracavitary vertical cut push broach mechanism according to claim 2, it is characterised in that：The first cutting push broach（1）
With the first cutter head（11）With the first blade（12）, first cutting edge（101）It is opened in the first cutter head（11）On；It is described
Second cutting push broach（2）With the second cutter head（21）With the second blade（22）, second cutting edge（102）It is opened in second
Cutter head（21）On.
A kind of 6. intracavitary vertical cut push broach mechanism according to claim 5, it is characterised in that：First cutter head（11）With
Two cutter heads（21）It is bonded to each other, first cutter head（11）With the second cutter head（21）Top pass through latch segment（3）Mutually fastening,
First cutter head（11）With the second cutter head（21）Middle part pass through rivet（4）Mutually riveting fastening, first cutter head（11）
With the second cutter head（21）Bottom pass through stay（5）Mutually fastening.
A kind of 7. intracavitary vertical cut push broach mechanism according to claim 6, it is characterised in that：First cutter head（11）With
Two cutter heads（21）Top offer and latch segment（3）The upper through hole coordinated（104）, the latch segment（3）It is located in through hole
（104）Interior and upper through hole（104）It is interference fitted first cutter head（11）With the second cutter head（21）Top be fixed together.
A kind of 8. intracavitary vertical cut push broach mechanism according to claim 6, it is characterised in that：First cutter head（11）With
Two cutter heads（21）Bottom there is neck successively from up to down（105）And buckle（106）, the buckle（106）Compare neck（105）
Width, the neck（105）With buckle（106）Connected edge forms step, the stay（5）On offer and neck
（105）And buckle（106）The lockhole of cooperation（51）, the buckle（106）It is only capable of passing through lockhole in a constant bearing（51）, work as institute
State buckle（106）Through lockhole（51）, rotational lock piece（5）, lockhole（51）Can be by the first cutter head（11）With the second cutter head
（21）Neck（105）It is fixedly clamped, first cutter head（11）With the second cutter head（21）Buckle（106）It is against stay
（5）Bottom.
A kind of 9. intracavitary vertical cut push broach mechanism according to claim 5, it is characterised in that：First blade（12）It is located at
First cutter head（11）Rear portion, first blade（12）It is elongated to extend from front to back, second blade（22）It is located at
Second cutter head（21）Rear portion, second blade（22）It is elongated to extend from front to back, first blade（12）With
Two blades（22）On offer groove（107）.
A kind of 10. intracavitary vertical cut push broach mechanism according to claim 9, it is characterised in that：First blade（12）With
Second blade（22）Rear portion passes through a contiguous block（6）Mutually it is fastenedly connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182441.7U CN207041544U (en) | 2017-02-28 | 2017-02-28 | A kind of intracavitary vertical cut push broach mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182441.7U CN207041544U (en) | 2017-02-28 | 2017-02-28 | A kind of intracavitary vertical cut push broach mechanism |
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| CN207041544U true CN207041544U (en) | 2018-02-27 |
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ID=61488820
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| CN201720182441.7U Active CN207041544U (en) | 2017-02-28 | 2017-02-28 | A kind of intracavitary vertical cut push broach mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691527A (en) * | 2017-02-28 | 2017-05-24 | 苏州法兰克曼医疗器械有限公司 | Intracavitary straight-cutting push knife mechanism |
| WO2020206612A1 (en) * | 2019-04-09 | 2020-10-15 | Covidien Lp | Surgical stapling device with pivotable knife blade |
| EP3949870A1 (en) * | 2020-08-03 | 2022-02-09 | Covidien LP | Surgical stapling device with staple cartridge having dummy portion |
-
2017
- 2017-02-28 CN CN201720182441.7U patent/CN207041544U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691527A (en) * | 2017-02-28 | 2017-05-24 | 苏州法兰克曼医疗器械有限公司 | Intracavitary straight-cutting push knife mechanism |
| WO2020206612A1 (en) * | 2019-04-09 | 2020-10-15 | Covidien Lp | Surgical stapling device with pivotable knife blade |
| EP3949870A1 (en) * | 2020-08-03 | 2022-02-09 | Covidien LP | Surgical stapling device with staple cartridge having dummy portion |
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