CN104739471A - Gap control device and surgical cutting and suturing instrument using the same - Google Patents
Gap control device and surgical cutting and suturing instrument using the same Download PDFInfo
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- CN104739471A CN104739471A CN201510112377.0A CN201510112377A CN104739471A CN 104739471 A CN104739471 A CN 104739471A CN 201510112377 A CN201510112377 A CN 201510112377A CN 104739471 A CN104739471 A CN 104739471A
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- groove
- limiting component
- control device
- fixed block
- cutting
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- 238000005520 cutting process Methods 0.000 title claims abstract description 81
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000009527 percussion Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 description 5
- 238000009958 sewing Methods 0.000 description 4
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000001198 duodenum Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 208000014617 hemorrhoid Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000001187 pylorus Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 230000004206 stomach function Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Classifications
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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
- A61B17/07207—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 the staples being applied sequentially
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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
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
Abstract
The invention relates to a gap control device and a surgical cutting and suturing instrument using the same, and discloses the gap control device of the surgical cutting and suturing instrument. The gap control device of the surgical cutting and suturing instrument comprises an upper clamp plate, an assembly clamp plate and a sheet provided with a cutter. An inner cavity is formed in the far end of the upper clamp plate in the axial direction, and a first sliding groove is formed in the bottom of the inner cavity in the axial direction. The assembly clamp plate is in a U shape, and a guide groove is formed in the bottom of the assembly clamp plate in the axial direction. The cutter is arranged at the far end of the sheet provided with the cutter. A first limiting component is arranged at the upper end of the cutter, and the first limiting component can slide along the first sliding groove in the inner cavity of the upper clamp plate in the axial direction. A second limiting component is arranged at the lower end of the cutter, and the second limiting component penetrates through the guide groove and is located at the bottom of the assembly clamp plate. When the instrument is closed and tissue cutting and suturing is conducted, the closed gaps of the instrument in the cutting and suturing process are consistent and forming consistency of suturing joints is guaranteed by adjusting the distance between the first limiting component and the second limiting component of the gap control device. In addition, by the adoption of a roller or rolling shaft pushing mode, friction resistance is reduced, and then triggering push force of the instrument is reduced.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of gap control device of surgical cutting and stapling instrument.
Background technology
In surgical operation, medical suturing instrument has become the requisite medical assistance apparatus in tissue sewing process.Various surgery medical suturing instrument is just being widely used in sewing up human body alimentary canal tissue, respiratory tissues and vascular tissue in surgical operation, can reduce operating time, improves surgical quality.They are generally used for the end such as esophagus in digestive tract, Stomach duodenum, small intestinal, coton and rectal end, side and side-to-side neurorrhaphy operation or the operation forming passage or close incisions such as ostomy of hemorrhoid excision stomach function regulating pylorus, also be used to the suture operation of the suture operation such as lung and trachea and vascular tissue in respiratory tract, be specially adapted to appear the suture operation with the Organ and tissue of operating difficulties.
In surgical incision stapler, line cutting stitching instrument has to be sewed up and cutting two functions, while carrying out wound suture, by unnecessary cutting tissue, line cutting stitching instrument has been widely used in operating wound suture, and interior tissue is sewed up with cutting process.Existing line cutting stitching instrument generally comprises upper and lower two clamping plate, and for closing the close handles of upper and lower clamping plate, be oppositely arranged on nail bin and the nail supporting base of upper and lower clamping plate far-end, to be located in nail bin and can simultaneously relative to percussion sheet and the cutting knife of nail bin movement, and for driving the push button of percussion sheet and cutting knife movement.In nail bin, arrangement is provided with suturing nail and pushing slice of nail, and percussion sheet promotes pushing slice of nail successively and pushes stiching instrument to nail supporting base, and the tissue between nail bin and nail supporting base cuts off by described cutting knife.
Line cutting stitching instrument of the prior art is in structure and use people to there is many deficiencies, the closed gap head end of nail bin and the variable thickness of tail end after grasping tissue that are embodied in most of line cutting stitching instrument cause, this just causes when organizing cross-section and stitching, nail molding inconsistent, thus impact uses result.
Moreover, in existing suture instruments, the cutting and stitching component calls that the mode advancing cutter to complete joint-cutting cuts stiching instrument to straight line is very high, in the process advanced, cutting and stitching assembly structural member unbalance stress under the effect of thrust of stiching instrument, very easily occurs bending and deformation, even can cause the damage of other associated members, thus cause thrust to increase, push away the phenomenons such as motionless.
Summary of the invention
The present invention will provide a kind of closed gap control device of surgical cutting and stapling instrument, to solve in prior art after apparatus grasping tissue, the head end in its closed gap and the variable thickness of tail end cause, and then organizing of causing is cross-section and when sewing up, the inconsistent technical problem of nail molding.
In order to solve the problems of the technologies described above, the invention provides a kind of gap control device of surgical cutting and stapling instrument, comprising train wheel bridge, described train wheel bridge distal shaft is to being provided with inner chamber, and described intracavity bottom axially offers the first chute; Assembly clamping plate, described assembly clamping plate are U-shaped, axially offer gathering sill bottom it; Band blade, the far-end of described band blade is provided with cutting knife, and the upper end of described cutting knife is provided with the first limiting component, and described first limiting component can slide axially along the first chute in train wheel bridge inner chamber; The lower end of described cutting knife is provided with the second limiting component, and described second limiting component is positioned at the bottom of described assembly clamping plate through gathering sill.
Preferably, described first limiting component and described second limiting component respectively vertical described cutting knife are arranged, and by the fixed range between the first limiting component and described second limiting component, come the closed gap of control device in cutting and stitching process.
Preferably, described first limiting component comprises the fixed block being provided with draw-in groove; And the ball be positioned in described draw-in groove or roller bearing, described ball or roller portion are contained in described draw-in groove, can carry out rolling or rotating relative to described fixed block.
Preferably, described fixed block is a rectangular block, and the height of described train wheel bridge inner chamber is slightly larger than the height of described fixed block, and the width of described train wheel bridge inner chamber is slightly larger than the width of described fixed block.
Preferably, described train wheel bridge inner chamber is provided with the first limited step and the second limited step, described ball or a described roller bearing part are contained in limited block, another part and described first limited step and the second limited step contact, and slide axially along described train wheel bridge first chute, ball or roller bearing intracavity in train wheel bridge is rolled and advances, complete stitching, owing to have employed ball or roller bearing mode, reduce frictional resistance, and then reduce the percussion thrust of apparatus.
A kind of preferred scheme is, described fixed block is made up of fixed block body and baffle plate, formed after described draw-in groove is fixing by described fixed block body and described baffle plate, described draw-in groove for tool jaggy can the spherical groove of ball described in accommodating part or tool is jaggy can the cylinder groove of ball described in accommodating part or described roller bearing;
The cross-sectional area of described tool spherical groove jaggy or cylinder groove is greater than the half of the area of a circle of its same radius;
Described ball and described roller bearing have the section radius matched with described draw-in groove cross sectional radius.
Another kind of preferred scheme is that described fixed block is made up of fixed block body and baffle plate, and described draw-in groove is fixed by described fixed block body and described baffle plate and formed afterwards, and the cross section of described draw-in groove and longitudinal section are trapezoidal;
When holding described ball, the diameter of described ball is greater than that one of them cross section ladder of the cross section of described draw-in groove or longitudinal section is high and minor face is long.
Present invention also offers a kind of surgical cutting and stapling instrument, described surgical cutting and stapling instrument comprises above-mentioned arbitrary described gap control device.
Preferably, surgical cutting and stapling instrument provided by the invention, the lower surface of its train wheel bridge intracavity bottom is provided with nail groove, this apparatus also comprises nail bin, and described nail bin is axially arranged with middle seam, and middle seam both side surface is provided with nail, be provided with staple in nail, described nail bin is arranged on assembly clamping plate far-end;
Be arranged on the percussion push jack below nail bin, described percussion push jack is a pair, lays respectively at the both sides of described band blade; And being positioned at the push button of described band blade and described percussion push jack near-end, described percussion push jack, described band blade are fixedly connected with described push button respectively.
After apparatus is closed, first limiting component of described gap control device enters the interior intracavity set by train wheel bridge, when carrying out organizing joint-cutting, described band blade and described percussion push jack is driven to be slided to nail bin far-end by nail bin near-end by push button, and then drive the first limiting component set by cutting knife upper end in the inner chamber set by train wheel bridge along the first slide, second limiting component is in the basal sliding of assembly clamping plate, and percussion staple completes cutting and the stitching of tissue.
Preferably, described surgical cutting and stapling instrument is line cutting stitching instrument.
Common, we are fixedly connected with formed assembly are respectively referred to as cutting and stitching assembly by pulling the trigger push jack, band blade in line cutting stitching instrument with push button.
In the present invention, because the far-end of the band blade at apparatus is provided with gap control device, this device is along with the propelling of band blade, slide axially in train wheel bridge inner chamber, by the closed gap between the distance controlling apparatus train wheel bridge between the first limiting component and the second limiting component and assembly clamping plate, thus overcome due to after existing line cutting stitching instrument grasping tissue, the head end in its closed gap and the variable thickness of tail end cause, and then organizing of causing is cross-section and when sewing up, the inconsistent defect of nail molding, closed consistent in the process that apparatus is cut at grasping tissue, guarantee staple molding concordance.In addition, the ball arranged in gap control device or roller bearing, adopt the rolling friction mode of ball or roller bearing to advance, reduce frictional resistance, and then reduce the percussion thrust of apparatus.
Accompanying drawing explanation
The schematic diagram of a kind of line cutting stitching instrument that Fig. 1 provides for the embodiment of the present invention;
The line cutting stitching instrument horizontal section structural representation of band blade in traveling process that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the assembly clamping plate of a kind of line cutting stitching instrument that Fig. 3 embodiment of the present invention provides;
Band blade during a kind of line cutting stitching instrument original state that Fig. 4 embodiment of the present invention provides is arranged on structural representation in assembly clamping plate;
Fig. 5 is the front view of Fig. 4;
The band blade of a kind of line cutting stitching instrument that Fig. 6 embodiment of the present invention provides and the axial section structural representation of train wheel bridge relative position;
The cutting and stitching modular construction schematic diagram that Fig. 7 embodiment of the present invention provides;
The band blade structural representation that Fig. 8 embodiment of the present invention provides;
The structural representation of the first limiting component set on the band blade that Fig. 9 embodiment of the present invention provides;
Figure 10 is the band blade structural representation that the first limiting component of the present invention adopts ball;
Figure 11 is the band blade axial section structural representation that the first limiting component of the present invention adopts ball;
Figure 12 is the sectional view of Figure 10 along A-A line.
Figure 13 is the band blade structural representation that the first limiting component of the present invention adopts roller bearing;
Figure 14 is the band blade axial section structural representation that the first limiting component of the present invention adopts roller bearing;
Figure 15 is the sectional view of Figure 13 along A-A line.
Detailed description of the invention
Understand technical scheme of the present invention better to make those skilled in the art can be implemented, below in conjunction with the drawings and specific embodiments, the invention will be further described, but illustrated embodiment is not as a limitation of the invention.
Present embodiments provide a kind of gap control device of preferred surgical cutting and stapling instrument, for line cutting stitching instrument, as shown in figs. 2-9, the gap control device of above-mentioned surgical cutting and stapling instrument, comprise train wheel bridge 2, described train wheel bridge 2 distal shaft, to being provided with inner chamber 21, axially offers the first chute 22 bottom described inner chamber 21; Assembly clamping plate 1, described assembly clamping plate 1 are U-shaped, axially offer gathering sill 11 bottom it; Band blade 3, the far-end of described band blade 3 is provided with cutting knife 31, and the upper end of described cutting knife 31 is provided with the first limiting component 32, and described first limiting component 32 can slide axially along the first chute 22 in train wheel bridge inner chamber 21; The lower end of described cutting knife 31 is provided with the second limiting component 33, and described second limiting component 33 is positioned at the bottom of described assembly clamping plate 1 through gathering sill 11.
Described first limiting component 32 comprises the fixed block 321 being provided with draw-in groove 322; And the ball 323 be positioned in described draw-in groove 322 or roller bearing 324, described ball 323 or roller bearing 324 are partially accommodated in described draw-in groove 322, can carry out rolling or rotating relative to described fixed block 321.
As shown in Figure 2, described train wheel bridge inner chamber 21 is provided with the first limited step 23 and the second limited step 24, described ball 323 or roller bearing 324 part are contained in fixed block draw-in groove 322, another part and described first limited step 23 and the second limited step 24 contact, and slide axially along described train wheel bridge first chute 22.Because described ball 323 or roller bearing 324 are partially accommodated in fixed block 321, another part is outside fixed block 321, specifically as shown in Figure 10 to 15, therefore, described ball 323 or roller bearing 324 part are contained in fixed block 321, first limited step 23 and second limited step 24 of the part exposed and train wheel bridge 2 contact, and slide axially along described train wheel bridge first chute 22.
Preferably, described fixed block 321 is a rectangular block, and the height of described train wheel bridge inner chamber 21 is slightly larger than the height of described fixed block 321, and the width of described train wheel bridge inner chamber 21 is slightly larger than the width of described fixed block 321.
Specifically as shown in fig. 10-15, a kind of preferred scheme is: described fixed block 321 is made up of fixed block body 325 and baffle plate 326, described draw-in groove 322 by fixed block body 325 and baffle plate 326 fixing after formed, described draw-in groove 322 for tool jaggy can the spherical groove of ball 323 described in accommodating part or tool is jaggy can the cylinder groove of ball 323 described in accommodating part or described roller bearing 324; The cross-sectional area of tool spherical groove jaggy or cylinder groove is greater than the half of spherical groove or cylinder groove cross-sectional area, and described ball 323 or roller bearing 324 are positioned in described draw-in groove 322.
When draw-in groove 322 is tool spherical groove jaggy, can hold and have and ball 323 that this spherical groove internal diameter matches, described ball 323 exposes in indentation, there, and relative to described draw-in groove 322, can rotate in draw-in groove 322.
When draw-in groove 322 be vertically tool cylinder groove jaggy time, the above-mentioned ball 323 or above-mentioned roller bearing 324 that roll relative to described cylinder groove can be installed in this cylinder groove, concrete, when contents are ball 323, described ball 323 has the diameter matched with the cross-sectional diameter of cylinder groove, and the length of cylinder groove is more than or equal to the diameter of described ball; When contents are roller bearing 324, described roller bearing 324 has the cross-sectional diameter matched with the cross-sectional diameter of cylinder groove, and the length of cylinder groove is more than or equal to the length of roller bearing 324; Described ball 323 or roller bearing 324 expose in cylinder groove indentation, there, and can rotate relative to cylinder groove or roll.
Another kind of preferred scheme is: described fixed block 321 is made up of fixed block body 325 and baffle plate 326, and described draw-in groove 322 fixed block bodies 325 and baffle plate 326 formed after fixing, and cross section and the longitudinal section of described draw-in groove 322 are trapezoidal;
When holding described ball 323, the diameter of described ball 323 is greater than that one of them cross section ladder of the cross section of described draw-in groove 322 or longitudinal section is high and minor face is long.
The annexation about the draw-in groove 322 set by the first limiting component 32 and ball 323 or roller bearing 324 described in the present embodiment is only a kind of example, the present invention can also adopt the annexation be equal to above-mentioned annexation to arrange, as long as realize ball 323 or roller bearing 324 is partially received in the draw-in groove 322 of the first limiting component 32, and can carry out rolling or rotating relative to draw-in groove 322.
Described second limiting component 33 is for perpendicular to the limiting plate set by cutting knife face; As shown in Figure 5, described first limiting component 32 is arranged with the vertical described cutting knife 31 of described second limiting component 33, is come the closed gap in cutting and stitching process of control device by the fixed range between the first limiting component 32 set by band blade 3 upper cutter 31 top and bottom and the second limiting component 33.The concrete structure of above-mentioned first limiting component 32 and described second limiting component 33 can also replace with other structure with control gap function or profiles.
Preferably, described ball 323 or roller bearing 324 are metal material.
The present embodiment additionally provides a kind of preferred surgical cutting and stapling instrument, for line cutting stitching instrument, as shown in figures 1-8, above-mentioned line cutting stitching instrument comprises assembly clamping plate 1, the cross section of its assembly clamping plate 1 is U-shaped, axially offer gathering sill 11 bottom it, band blade 3 can be made to slide axially along gathering sill 11, and the first mounting groove 12 facilitating above-mentioned band blade 3 to install; The far-end of assembly clamping plate 1 is provided with nail bin 4, and described nail bin 4 is axially arranged with middle seam 41, stitches 41 both sides and is provided with nail, be provided with staple in nail in described nail bin upper surface edge.
Train wheel bridge 2, relatively with assembly clamping plate 1 can close or open, the distal shaft of described train wheel bridge 2 is to being provided with inner chamber 21, described inner chamber 21 is one-body molded by described train wheel bridge, axially the first chute 22 is offered bottom its inner chamber 21, concrete, described first chute 22 is opened on the centrage of inner chamber 21 bottom surface, and the lower surface bottom described inner chamber 21 is provided with the nail groove corresponding with described nail position uniformly along the first chute 22 both sides.
Above-mentioned line cutting stitching instrument also comprises can through the band blade 3 be arranged in assembly clamping plate 1 stitching 41 slide anteroposterior in nail bin, be arranged on the percussion push jack 5 below nail bin 4, and be arranged on band blade 3 and percussion push jack 5 afterbody for fixing and push button 6 both driving, described percussion push jack 5 is a pair, lays respectively at the both sides of described band blade 3.
Preferably, the middle part of described train wheel bridge 2 also offers the second mounting groove that the first limiting component 32 being suitable for described band blade 3 upper end enters inner chamber 21, when train wheel bridge 2 and assembly clamping plate 1 close, described first limiting component 32 is entered in train wheel bridge inner chamber 21 by the second mounting groove.
When described band blade 3 is installed, second limiting component 33 enters gathering sill 11 by the first mounting groove 12 of assembly clamping plate 1, after installation, second limiting component 33 is positioned at the exterior bottom of described assembly clamping plate 1, the structure of the second limiting component 33 not only ensure that organizes joint-cutting gap, and make slip in gathering sill 11 set in assembly clamping plate 1 that band blade 3 can be firm, greatly strengthen the stability of apparatus.
Due to train wheel bridge first chute 22, in nail bin, seam 41 is corresponding consistent with assembly clamping plate gathering sill 11 direction, after apparatus is closed, first limiting component 32 enters in the inner chamber 21 set by train wheel bridge, when carrying out organizing joint-cutting, described band blade 3 and described percussion push jack 5 is driven to be slided to nail bin 4 far-end by nail bin 4 near-end by push button 6, and then drive the first limiting component 32 set by cutting knife 31 upper end to slide along the first chute 22 in the inner chamber 21 set by train wheel bridge, second limiting component 33 contact bottom assembly clamping plate 1 slides, percussion staple completes cutting and the stitching of tissue.
The operation principle of the preferred line cutting stitching instrument of the present embodiment is as follows:
As shown in Figure 1-2, the original state of this line cutting stitching instrument is above-mentioned train wheel bridge 2, assembly clamping plate 1 close, during use, open apparatus, put between nail bin 4 and train wheel bridge 2 need the tissue of cutting, train wheel bridge 2 is corresponded to assembly clamping plate 1 and is inserted by locking positioning pin closed, now, the first limiting component 32 set on band blade 3 enters in the inner chamber 21 of train wheel bridge by the second mounting groove, pressing flexible handle, until handle locking, promote above-mentioned push button 6, above-mentioned band blade 3 and percussion push jack 5 are slided to nail bin 4 far-end by nail bin 4 near-end respectively by inner chamber bottom seam 41 in described nail bin and nail bin with push button 6, carry out tissue cutting and staple percussion, complete stitching.Meanwhile, the first limiting component 32 being fixed on band blade 3 upper end, also under push button 6 thrust, is distally slided along the first chute 22 by near-end in described train wheel bridge inner chamber 21.Then to pull back above-mentioned push button 6, open apparatus, take out above-mentioned nail bin 4.Owing to being arranged on the slip of the first limiting component 32 in train wheel bridge inner chamber 21 and the second limiting component 33 bottom assembly clamping plate 1, the clamping thickness of control device to tissue is carried out by its fixed range therebetween, make closed gap after grasping tissue, be organized in the thickness of the head end of nail bin and tail end basically identical, guarantee staple molding concordance.In addition, the ball 323 arranged in gap control device or roller bearing 324, and the first limited step 23 in train wheel bridge inner chamber 21 and the second limited step 24 offset and roll, and greatly reduce the frictional force between each parts.
Near-end herein, far-end limited according to industry practice, and be namely near-end from person close to doctor during operation, opposite end is far-end.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. the gap control device of a surgical cutting and stapling instrument, comprise train wheel bridge (2), described train wheel bridge (2) far-end is axially arranged with inner chamber (21), and described inner chamber (21) bottom axially offers the first chute (22);
Assembly clamping plate (1), described assembly clamping plate (1), for U-shaped, axially offer gathering sill (11) bottom it;
Band blade (3), the far-end of described band blade (3) is provided with cutting knife (31), the upper end of described cutting knife (31) is provided with the first limiting component (32), and described first limiting component (32) can slide axially along the first chute (22) in train wheel bridge inner chamber (21); The lower end of described cutting knife (31) is provided with the second limiting component (33), and described second limiting component (33) is positioned at the bottom of described assembly clamping plate (1) through described gathering sill (11).
2. gap control device according to claim 1, is characterized in that: described first limiting component (32) described cutting knife (31) vertical with described second limiting component (33) is arranged.
3. gap control device according to claim 1, is characterized in that: described first limiting component (32) comprises the fixed block (321) being provided with draw-in groove (322); And the ball (323) be positioned in described draw-in groove (322) or roller bearing (324), described ball (323) or roller bearing (324) are partially accommodated in described draw-in groove (322), can carry out rolling or rotating relative to described fixed block (321).
4. gap control device according to claim 3, it is characterized in that: described fixed block (321) is a rectangular block, the height of described train wheel bridge inner chamber (21) is slightly larger than the height of described fixed block (321), and the width of described train wheel bridge inner chamber (21) is slightly larger than the width of described fixed block (321).
5. gap control device according to claim 3, it is characterized in that: described train wheel bridge inner chamber (21) is provided with the first limited step (23) and the second limited step (24), described ball (323) or described roller bearing (324) part are contained in fixed block draw-in groove (322), another part and described first limited step (23) and the second limited step (24) contact, and slide axially along described train wheel bridge first chute (22).
6. gap control device according to claim 3, it is characterized in that: described fixed block (321) is made up of fixed block body (325) and baffle plate (326), formed after described draw-in groove (322) is fixing by described fixed block body (325) and described baffle plate (326), described draw-in groove (322) for tool jaggy can the spherical groove of ball (323) described in accommodating part or tool is jaggy can the cylinder groove of ball (323) described in accommodating part or described roller bearing (324);
The cross-sectional area of described tool spherical groove jaggy or cylinder groove is greater than the half of the area of a circle of its same radius;
Described ball (323) and described roller bearing (324) have the section radius matched with described draw-in groove (322) cross sectional radius.
7. gap control device according to claim 3, it is characterized in that: described fixed block (321) is made up of fixed block body (325) and baffle plate (326), described draw-in groove (322) formed after being fixed by described fixed block body (325) and described baffle plate (326), and cross section and the longitudinal section of described draw-in groove (322) are trapezoidal;
When holding described ball (323), the diameter of described ball (323) is greater than that one of them cross section ladder of the cross section of described draw-in groove (322) or longitudinal section is high and minor face is long.
8. a surgical cutting and stapling instrument, is characterized in that, described surgical cutting and stapling instrument comprises the arbitrary described gap control device of claim 1 to 7.
9. surgical cutting and stapling instrument according to claim 8, the lower surface of its train wheel bridge inner chamber (21) bottom is provided with nail groove, it is characterized in that:
Also comprise nail bin (4), described nail bin (4) is axially arranged with middle seam (41), middle seam (41) both side surface is provided with the nail corresponding with described nail groove, be provided with staple in nail, described nail bin (4) is arranged on assembly clamping plate (1) far-end;
Be arranged on the percussion push jack (5) below nail bin, described percussion push jack (5) is a pair, lays respectively at the both sides of described band blade (3);
And being positioned at the push button (6) of described band blade (3) and described percussion push jack (5) near-end, described percussion push jack (5), described band blade (3) are fixedly connected with described push button (6) respectively.
After apparatus is closed, described first limiting component (32) of described gap control device enters in described train wheel bridge inner chamber (21), when carrying out organizing joint-cutting, described band blade (3) and described percussion push jack (5) is driven to be slided to nail bin (4) far-end by described nail bin (4) near-end by described push button (6), and then drive described first limiting component (32) set by described cutting knife (31) upper end to slide along described first chute (22) in described train wheel bridge inner chamber (21), described second limiting component (33) is in the basal sliding of described assembly clamping plate (1), percussion staple completes cutting and the stitching of tissue.
10. surgical cutting and stapling instrument according to claim 8 or claim 9, is characterized in that: described surgical cutting and stapling instrument is line cutting stitching instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112377.0A CN104739471B (en) | 2015-03-13 | 2015-03-13 | A kind of gap control device and the surgical cutting and stapling instrument using the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112377.0A CN104739471B (en) | 2015-03-13 | 2015-03-13 | A kind of gap control device and the surgical cutting and stapling instrument using the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104739471A true CN104739471A (en) | 2015-07-01 |
| CN104739471B CN104739471B (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510112377.0A Expired - Fee Related CN104739471B (en) | 2015-03-13 | 2015-03-13 | A kind of gap control device and the surgical cutting and stapling instrument using the device |
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| CN (1) | CN104739471B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017202392A1 (en) * | 2016-05-23 | 2017-11-30 | 上海逸思医疗科技有限公司 | Surgical stapler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101534723A (en) * | 2006-09-29 | 2009-09-16 | 伊西康内外科公司 | Surgical staples |
| US20100213241A1 (en) * | 2008-09-19 | 2010-08-26 | Ethicon Endo-Surgery, Inc. | Staple cartridge |
| CN104323809A (en) * | 2014-08-22 | 2015-02-04 | 天津万和医疗器械有限公司 | Medical suture instrument with closing gap locking device |
| CN204520826U (en) * | 2015-03-13 | 2015-08-05 | 天津万和医疗器械有限公司 | A kind of gap control device and apply the surgical cutting and stapling instrument of this device |
-
2015
- 2015-03-13 CN CN201510112377.0A patent/CN104739471B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101534723A (en) * | 2006-09-29 | 2009-09-16 | 伊西康内外科公司 | Surgical staples |
| US20100213241A1 (en) * | 2008-09-19 | 2010-08-26 | Ethicon Endo-Surgery, Inc. | Staple cartridge |
| CN104323809A (en) * | 2014-08-22 | 2015-02-04 | 天津万和医疗器械有限公司 | Medical suture instrument with closing gap locking device |
| CN204520826U (en) * | 2015-03-13 | 2015-08-05 | 天津万和医疗器械有限公司 | A kind of gap control device and apply the surgical cutting and stapling instrument of this device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017202392A1 (en) * | 2016-05-23 | 2017-11-30 | 上海逸思医疗科技有限公司 | Surgical stapler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104739471B (en) | 2017-06-13 |
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