CN104739471B - A kind of gap control device and the surgical cutting and stapling instrument using the device - Google Patents
A kind of gap control device and the surgical cutting and stapling instrument using the device Download PDFInfo
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- CN104739471B CN104739471B CN201510112377.0A CN201510112377A CN104739471B CN 104739471 B CN104739471 B CN 104739471B CN 201510112377 A CN201510112377 A CN 201510112377A CN 104739471 B CN104739471 B CN 104739471B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 82
- 238000009527 percussion Methods 0.000 claims abstract description 25
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000009958 sewing Methods 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 210000002784 stomach Anatomy 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
- 210000001072 colon Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014617 hemorrhoid Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000001187 pylorus Anatomy 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000000813 small intestine Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 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
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
A kind of gap control device and the surgical cutting and stapling instrument using the device.The invention discloses a kind of gap control device of surgical cutting and stapling instrument, including train wheel bridge, the train wheel bridge distal end is axially provided with inner chamber, and the intracavity bottom axially offers the first chute；Component clamping plate, the component clamping plate is U-shaped, and its bottom axially offers gathering sill；Band blade, the distal end of the band blade is provided with cutting knife, and the upper end of the cutting knife is provided with the first limiting component, and first limiting component can slide axially in train wheel bridge inner chamber along the first chute；The lower end of the cutting knife is provided with the second limiting component, and second limiting component is located at the bottom of the component clamping plate through gathering sill.When carrying out tissue joint-cutting after apparatus closure, the distance between first limiting component and the second limiting component by the gap control device, make apparatus closed-gap during joint-cutting consistent, ensure staple formation uniformity, in addition, advanced by the way of ball or roller bearing, reduce frictional resistance, and then reduce the percussion thrust of apparatus.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of gap control device of surgical cutting and stapling instrument.
Background technology
In surgical operation, medical suturing instrument has turned into the essential medical assistance device in tissue sewing process
Tool.Various surgery medical suturing instruments are just widely used in suture human body alimentary canal tissue, respiratory tract group in surgical operation
Knit and vascular tissue, it is possible to reduce operating time, improve surgical quality.They are generally used for oesophagus, stomach, 12 fingers in alimentary canal
The end such as intestines, small intestine, colon and rectum end, side and side-to-side neurorrhaphy operation or hemorrhoid excision and stomach pylorus stoma etc. form passage or close
The operation of otch is closed, is also used for the suture operation of the suture operation such as lung and tracheae and vascular tissue in respiratory tract, it is particularly suitable
In the suture operation for appearing organ and tissue with operating difficulties.
In surgical incision stapler, line cutting stitching instrument has two functions of suture and cutting, is carrying out wound suture
While, by unnecessary cutting tissue, line cutting stitching instrument has been widely used for the wound suture of surgical operation, interior tissue
In suture and cutting process.Existing line cutting stitching instrument generally comprises upper and lower two clamping plates, and upper and lower for closing
The close handles of clamping plate, are oppositely arranged on the nail bin and resist-nailed seat of upper and lower clamping plate distal end, in nail bin and can simultaneously relative to
The percussion piece and cutting knife of nail bin movement, and for driving the push button of percussion piece and cutting knife movement.Arrangement is provided with suture in nail bin
Nail and pushing slice of nail, percussion piece promote pushing slice of nail and push stitching unstrument to resist-nailed seat successively, and described cutting knife positioned at nail bin and will be supported
Tissue cut-out between nail seat.
There is many deficiencies in line cutting stitching instrument of the prior art, be embodied in mostly in structure and using upper people
The variable thickness of the closed-gap head end of nail bin and tail end after tissue is clamped of number line cutting stitching instrument is caused, and this is resulted in
When tissue is cross-section and sutures, it is inconsistent that nail is molded, so as to influence to use result.
Furthermore, in existing suture instruments, propulsion cutter complete the cutting suture of the mode to straight line joint-cutting clutch of joint-cutting
Component requirement is very high, during propulsion, the cutting suturing assembly of the stitching unstrument structural member unbalance stress in the presence of thrust,
Easily occur bending and deformation, result even in the damage of other associated members, so as to cause thrust to increase, push away the phenomenon such as motionless.
The content of the invention
The present invention will provide a kind of closed-gap control device of surgical cutting and stapling instrument, to solve device in the prior art
After tool clamping tissue, the head end of its closed-gap and the variable thickness of tail end are caused, when cross-section and suture is organized caused by entering, nail
The inconsistent technical problem of son shaping.
In order to solve the above-mentioned technical problem, the invention provides a kind of gap control device of surgical cutting and stapling instrument,
Including train wheel bridge, the train wheel bridge distal end is axially provided with inner chamber, and the intracavity bottom axially offers the first chute；Component is pressed from both sides
Plate, the component clamping plate is U-shaped, and its bottom axially offers gathering sill；Band blade, the distal end of the band blade is provided with cuts
Knife, the upper end of the cutting knife is provided with the first limiting component, and first limiting component can be in train wheel bridge inner chamber along the first chute
Slide axially；The lower end of the cutting knife is provided with the second limiting component, and second limiting component is located at described group through gathering sill
The bottom of part clamping plate.
Preferably, first limiting component and second limiting component are respectively perpendicular the cutting knife and set, by the
Fixed range between one limiting component and second limiting component, between carrying out closure of the control device in cutting sewing process
Gap.
Preferably, first limiting component includes being provided with the fixed block of draw-in groove；And it is positioned in the rolling in the draw-in groove
Pearl or roller bearing, the ball or roller portion are contained in the draw-in groove, can be rolled or be turned relative to the fixed block
It is dynamic.
Preferably, the fixed block is a rectangular block, the height of the height slightly larger than the fixed block of the train wheel bridge inner chamber
Degree, the width of the width slightly larger than the fixed block of the train wheel bridge inner chamber.
Preferably, the train wheel bridge inner chamber is provided with the first limited step and the second limited step, the ball or the rolling
An axle part is contained in limited block, and another part and first limited step and the second limited step are in contact, and along institute
State the chute of train wheel bridge first to slide axially so that ball or roller bearing roll advance in train wheel bridge inner chamber, suture is completed, due to adopting
With ball or roller bearing mode, frictional resistance is reduced, and then reduce the percussion thrust of apparatus.
A kind of preferred scheme is that the fixed block is constituted by fixing block body and baffle plate, and the draw-in groove is by the fixation
Block body and the baffle plate are formed after fixing, the draw-in groove be have the spherical groove that can partly accommodate the ball jaggy or
The tool cylinder groove that can partly accommodate the ball or the roller bearing jaggy；
The half of the cross-sectional area more than the area of a circle of its same radius of the tool spherical groove jaggy or cylinder groove；
The ball and the section radius that the roller bearing has and the draw-in groove cross sectional radius match.
Another preferred scheme is that the fixed block is constituted by fixing block body and baffle plate, and the draw-in groove is described solid
Determine to be formed after block body and the baffle plate are fixed, the cross section and longitudinal section of the draw-in groove are trapezoidal；
When the ball is accommodated, one of cross section or longitudinal section with diameter greater than the draw-in groove of the ball
Section ladder is high and short side is long.
Present invention also offers a kind of surgical cutting and stapling instrument, the surgical cutting and stapling instrument includes any of the above-described institute
The gap control device stated.
Preferably, the surgical cutting and stapling instrument that the present invention is provided, the lower surface of its train wheel bridge intracavity bottom is provided with nail groove,
The apparatus also includes nail bin, and the nail bin is axially arranged with middle seam, and middle seam both side surface is provided with nail, staple is provided with nail,
The nail bin is arranged on component clamping plate distal end；
Percussion push jack below nail bin, the percussion push jack is a pair, respectively positioned at the both sides of the band blade；
And positioned at the band blade and the push button of the percussion push jack near-end, the percussion push jack, the band blade respectively with it is described
Push button is fixedly connected.
After apparatus closure, the first limiting component of the gap control device enters in the inner chamber set by train wheel bridge, carries out
During tissue joint-cutting, the band blade and the percussion push jack is driven to be slided from nail bin near-end to distal cartridge 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, the second limiting component
In component clamping plate basal sliding, percussion staple completes the cutting and suture of tissue.
Preferably, the surgical cutting and stapling instrument is line cutting stitching instrument.
Common, we will fire push jack, band blade and are fixedly connected with push button to be formed respectively in line cutting stitching instrument
Component be referred to as cut suturing assembly.
In the present invention, because the distal end of the band blade in apparatus is provided with gap control device, the device is with band knife
The propulsion of piece, slides axially in train wheel bridge inner chamber, is controlled by the distance between the first limiting component and the second limiting component
Closed-gap between apparatus train wheel bridge and component clamping plate, organizes so as to overcome because existing line cutting stitching instrument is clamped
Afterwards, the variable thickness of the head end of its closed-gap and tail end is caused, and when cross-section and suture is organized caused by entering, nail is molded not
Consistent defect, makes apparatus closure during clamping tissue cutting consistent, it is ensured that staple formation uniformity.Additionally, gap
The ball or roller bearing set in control device, are advanced using the rolling friction mode of ball or roller bearing, reduce frictional resistance, and then
Reduce the percussion thrust of apparatus.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of line cutting stitching instrument provided in an embodiment of the present invention；
Fig. 2 is line cutting stitching instrument horizontal section structure of the band blade provided in an embodiment of the present invention during traveling
Schematic diagram；
A kind of structural representation of the component clamping plate of Fig. 3 line cutting stitching instruments provided in an embodiment of the present invention；
Band blade during a kind of Fig. 4 line cutting stitching instrument original states provided in an embodiment of the present invention is pressed from both sides installed in component
Structural representation in plate；
Fig. 5 is the front view of Fig. 4；
A kind of band blade of Fig. 6 line cutting stitching instruments provided in an embodiment of the present invention and the axial direction of train wheel bridge relative position
Cross-sectional view；
Fig. 7 cutting suturing assembly structural representations provided in an embodiment of the present invention；
Fig. 8 band blade structural representations provided in an embodiment of the present invention；
The structural representation of the first set limiting component on Fig. 9 band blades provided in an embodiment of the present invention；
Figure 10 is band blade structural representation of the first limiting component of the invention using ball；
Figure 11 is band blade axial section structural representation of the first limiting component of the invention using ball；
Figure 12 is sectional views of the Figure 10 along line A-A.
Figure 13 is band blade structural representation of the first limiting component of the invention using roller bearing；
Figure 14 is band blade axial section structural representation of the first limiting component of the invention using roller bearing；
Figure 15 is sectional views of the Figure 13 along line A-A.
Specific embodiment
In order that those skilled in the art more fully understand that technical scheme can be practiced, below in conjunction with the accompanying drawings
The invention will be further described with specific embodiment, but illustrated embodiment is not as a limitation of the invention.
A kind of gap control device of preferred surgical cutting and stapling instrument is present embodiments provided, is sutured with straight cuts
As a example by device, as shown in figs. 2-9, the gap control device of above-mentioned surgical cutting and stapling instrument, including including train wheel bridge 2, it is described on
The distal end of clamping plate 2 is axially provided with inner chamber 21, and the bottom of the inner chamber 21 axially offers the first chute 22；Component clamping plate 1, described group
Part clamping plate 1 is U-shaped, and its bottom axially offers gathering sill 11；Band blade 3, the distal end of the band blade 3 is provided with cutting knife 31,
The upper end of the cutting knife 31 is provided with the first limiting component 32, and first limiting component 32 can be in train wheel bridge inner chamber 21 along first
Chute 22 slides axially；The lower end of the cutting knife 31 is provided with the second limiting component 33, and second limiting component 33 is passed through and is oriented to
Groove 11 is located at the bottom of the component clamping plate 1.
First limiting component 32 includes being provided with the fixed block 321 of draw-in groove 322；And be positioned in the draw-in groove 322
Ball 323 or roller bearing 324, the ball 323 or roller bearing 324 be partially accommodated in the draw-in groove 322, can be relative to described
Fixed block 321 is rolled or rotated.
As shown in Fig. 2 the train wheel bridge inner chamber 21 is provided with the first limited step 23 and the second limited step 24, the ball
323 or the part of roller bearing 324 be contained in fixed block draw-in groove 322, another part and first limited step 23 and second are limited
Position step 24 is in contact, and is slid axially along the first chute of the train wheel bridge 22.Because the ball 323 or roller bearing 324 are portions
Partial volume is contained in fixed block 321, and another part is specific as shown in Figure 10 to 15 in the outside of fixed block 321, therefore, the rolling
Pearl 323 or the part of roller bearing 324 are contained in fixed block 321, the part exposed and the first limited step 23 of train wheel bridge 2 and
Two limited steps 24 are in contact, and are slid axially along the first chute of the train wheel bridge 22.
Preferably, the fixed block 321 is a rectangular block, and the height of the train wheel bridge inner chamber 21 is slightly larger than the fixed block
321 height, the width of the width slightly larger than the fixed block 321 of the train wheel bridge inner chamber 21.
Specifically as shown in fig. 10-15, a kind of preferred scheme is：The fixed block 321 is by fixed block body 325 and baffle plate
326 compositions, the draw-in groove 322 is formed after being fixed by fixed block body 325 and baffle plate 326, and the draw-in groove 322 is with breach
The spherical groove that can partly accommodate the ball 323 or have and jaggy can partly accommodate the ball 323 or the roller bearing 324
Cylinder groove；The cross-sectional area for having spherical groove jaggy or cylinder groove is more than the one of spherical groove or cylinder groove cross-sectional area
Half so that the ball 323 or roller bearing 324 are positioned in the draw-in groove 322.
When draw-in groove 322 is to have spherical groove jaggy, can accommodate with and the ball that matches of the spherical groove internal diameter
323, the ball 323 exposes in indentation, there, and can be rotated in draw-in groove 322 relative to the draw-in groove 322.
When draw-in groove 322 to have cylinder groove jaggy vertically, can be installed relative to the cylinder groove in the cylinder groove
The above-mentioned ball 323 or above-mentioned roller bearing 324 for rolling, specifically, when receiving material is ball 323, the ball 323 has and cylinder
The diameter that the cross-sectional diameter of groove matches, and cylinder groove length more than or equal to the ball diameter；Receiving material is roller bearing
When 324, the roller bearing 324 has the cross-sectional diameter matched with the cross-sectional diameter of cylinder groove, and the length of cylinder groove is big
In the length equal to roller bearing 324；The ball 323 or roller bearing 324 expose in cylinder groove indentation, there, and can be sent out relative to cylinder groove
It is raw to rotate or roll.
Another preferred scheme is：The fixed block 321 is made up of fixed block body 325 and baffle plate 326, the draw-in groove
322 fixed block bodies 325 and baffle plate 326 are formed after fixing, and the cross section and longitudinal section of the draw-in groove 322 are trapezoidal；
When the ball 323 is accommodated, the cross section or longitudinal section with diameter greater than the draw-in groove 322 of the ball 323
The section ladder of one of them is high and short side is long.
Described in the present embodiment on the draw-in groove 322 and ball 323 or roller bearing 324 set by the first limiting component 32
Annexation be only a kind of example, the present invention can also be configured using the annexation that is equal to above-mentioned annexation,
If realize that ball 323 or roller bearing 324 are partially received in the draw-in groove 322 of the first limiting component 32, and can be relative to draw-in groove 322
Rolled or rotated.
Second limiting component 33 is perpendicular to the limiting plate set by cutting knife face；As shown in figure 5, described first is spacing
Part 32 and the vertical cutting knife 31 of second limiting component 33 are set, by the top and bottom institute of 3 upper cutter of band blade 31
Set the first limiting component 32 and the second limiting component 33 between fixed range come control device cutting sewing process
In closed-gap.The concrete structure of above-mentioned first limiting component 32 and second limiting component 33 may be replaced by other
Structure or profile with control gap function.
Preferably, the ball 323 or roller bearing 324 are metal material.
The present embodiment additionally provides a kind of preferred surgical cutting and stapling instrument, by taking line cutting stitching instrument as an example, such as schemes
Shown in 1-8, above-mentioned line cutting stitching instrument includes component clamping plate 1, and the cross section of its component clamping plate 1 is U-shaped, and its bottom is axially opened
Gathering sill 11 is provided with, band blade 3 can be made to be slid axially along gathering sill 11, and facilitate the first peace of the installation of above-mentioned band blade 3
Tankage 12；The distal end of component clamping plate 1 is provided with nail bin 4, and the nail bin 4 is axially arranged with middle seam 41, and the nail bin upper surface is in
Stitch 41 both sides and be provided with nail, staple is installed in nail.
Train wheel bridge 2, can it is relatively closed with component clamping plate 1 or open, the distal end of the train wheel bridge 2 is axially provided with inner chamber
21, the inner chamber 21 is integrally formed by the train wheel bridge, and its bottom of inner chamber 21 axially offers the first chute 22, specifically,
First chute 22 is opened on the center line of the bottom surface of inner chamber 21, and the lower surface of the bottom of the inner chamber 21 is along 22 liang of the first chute
Side is uniformly provided with the nail groove corresponding with the nail position.
Above-mentioned line cutting stitching instrument also include may pass through stitch in nail bin 41 slide anteroposteriors in component clamping plate 1
Band blade 3, installed in the percussion push jack 5 of the lower section of nail bin 4, and installed in band blade 3 and the percussion afterbody of push jack 5 for fixing
And the push button 6 of the two is driven, the percussion push jack 5 is a pair, respectively positioned at the both sides of the band blade 3.
Preferably, the middle part of the train wheel bridge 2 is further opened with being suitable to the first limiting component 32 of the upper end of the band blade 3 and enters
Enter the second mounting groove of inner chamber 21, when train wheel bridge 2 and component clamping plate 1 are closed, first limiting component 32 is by the second peace
Tankage enters in train wheel bridge inner chamber 21.
When installing the band blade 3, the second limiting component 33 enters gathering sill by the first mounting groove 12 of component clamping plate 1
11, after installation, the second limiting component 33 is located at the exterior bottom of the component clamping plate 1, the structure of the second limiting component 33
Not only ensure that tissue joint-cutting gap, and in the set gathering sill 11 in the component clamping plate 1 for enabling that band blade 3 consolidates
Slide, greatly enhance the stability of apparatus.
Because seam 41 is corresponding with 11 directions of component clamping plate gathering sill consistent in train wheel bridge the first chute 22, nail bin, in apparatus
After closure, the first limiting component 32 enters in the inner chamber 21 set by train wheel bridge, when carrying out tissue joint-cutting, institute is driven by push button 6
State band blade 3 and the percussion push jack 5 slided from the near-end of nail bin 4 to the distal end of nail bin 4, so drive set by cutting knife 31 upper end the
One limiting component 32 is slided in the inner chamber 21 set by train wheel bridge along the first chute 22, and the second limiting component 33 is in component clamping plate 1
Bottom contact is slided, and percussion staple completes the cutting and suture 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 that above-mentioned train wheel bridge 2, component clamping plate 1 are closed, and is made
Used time, apparatus is opened, needing the tissue of cutting to be put between nail bin 4 and train wheel bridge 2, train wheel bridge 2 is logical corresponding to component clamping plate 1
Locking positioning pin insertion closure is crossed, now, the first set limiting component 32 enters upper folder by the second mounting groove on band blade 3
In the inner chamber 21 of plate, press flexible handle, until handle locking, promote above-mentioned push button 6, above-mentioned band blade 3 and percussion push jack 5 with
Push button 6 is slided by seam 41 in the nail bin and nail bin bottom inner chamber from the near-end of nail bin 4 to the distal end of nail bin 4 respectively, is organized
Cutting and staple percussion, complete suture.Meanwhile, the first limiting component 32 for being fixed on the upper end of band blade 3 is also made in the thrust of push button 6
Under, slided by proximate along the first chute 22 in the train wheel bridge inner chamber 21.Then pull back above-mentioned push button 6, open
Apparatus, takes out above-mentioned nail bin 4.Due to the first limiting component 32 for being arranged in train wheel bridge inner chamber 21 and the bottom of component clamping plate 1
The slip of the second limiting component 33, by the fixed range between both it come control device to the clamping thickness organized so that
Closed-gap clamp tissue after be organized in nail bin head end and tail end thickness it is basically identical, it is ensured that staple formation uniformity.
Additionally, the He of the first limited step 23 in the ball 323 set in gap control device or roller bearing 324, and train wheel bridge inner chamber 21
Second limited step 24 offsets and rolls, and greatly reduces the frictional force between each part.
Near-end herein, distal end are limited according to industry practice, that is, person is near-end, opposite one close to doctor when performing the operation
It is distal end to hold.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the present invention, protection model of the invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (9)
1. a kind of gap control device of surgical cutting and stapling instrument, including train wheel bridge (2), train wheel bridge (2) the distal end axial direction
Inner chamber (21) is provided with, inner chamber (21) bottom axially offers the first chute (22)；
Component clamping plate (1), the component clamping plate (1) is U-shaped, and its bottom axially offers gathering sill (11)；
Band blade (3), the distal end of the band blade (3) is provided with cutting knife (31), and the upper end of the cutting knife (31) is provided with the first limit
Position part (32), first limiting component (32) can slide axially in train wheel bridge inner chamber (21) along the first chute (22)；Institute
The lower end for stating cutting knife (31) is provided with the second limiting component (33), and second limiting component (33) is through the gathering sill (11) position
In the bottom of the component clamping plate (1)；
First limiting component (32) is including being provided with the fixed block (321) of draw-in groove (322)；And it is positioned in the draw-in groove
(322) ball (323) or roller bearing (324) in, the ball (323) or roller bearing (324) are partially accommodated in the draw-in groove (322)
It is interior, can be rolled or be rotated relative to the fixed block (321).
2. gap control device according to claim 1, it is characterised in that：First limiting component (32) and described
The vertical cutting knife (31) of two limiting components (33) is set.
3. gap control device according to claim 1, it is characterised in that：The fixed block (321) is a rectangular block, institute
The height of the height slightly larger than the fixed block (321) of inner chamber (21) is stated, the width of the inner chamber (21) is slightly larger than the fixation
The width of block (321).
4. gap control device according to claim 1, it is characterised in that：The inner chamber (21) is provided with the first limited step
(23) and the second limited step (24), the ball (323) or the roller bearing (324) part are contained in fixed block draw-in groove
(322) in, another part and first limited step (23) and the second limited step (24) are in contact, and are slided along described first
Groove (22) slides axially.
5. gap control device according to claim 1, it is characterised in that：The fixed block (321) is by fixed block body
(325) constituted with baffle plate (326), after the draw-in groove (322) is fixed by the fixed block body (325) and the baffle plate (326)
Formed, the draw-in groove (322) for have the spherical groove that can partly accommodate the ball (323) jaggy or have it is jaggy can
Part accommodates the cylinder groove of the ball (323) or the roller bearing (324)；
Half of the cross-sectional area of the spherical groove or the cylinder groove more than the area of a circle of its same radius；
The ball (323) and the roller bearing (324) are with the section matched with the draw-in groove (322) cross sectional radius half
Footpath.
6. gap control device according to claim 1, it is characterised in that：The fixed block (321) is by fixed block body
(325) constituted with baffle plate (326), after the draw-in groove (322) is fixed by the fixed block body (325) and the baffle plate (326)
Formed, the cross section and longitudinal section of the draw-in groove (322) are trapezoidal；
When ball (323) are accommodated, the ball (323) with diameter greater than the draw-in groove (322) cross section or vertical cut
The section ladder in one of face is high and short side is long.
7. a kind of surgical cutting and stapling instrument, it is characterised in that the surgical cutting and stapling instrument includes claim 1 to 6 times
Gap control device described in one.
8. surgical cutting and stapling instrument according to claim 7, the lower surface of its train wheel bridge inner chamber (21) bottom is provided with nail
Groove, it is characterised in that：
Also include nail bin (4), the nail bin (4) is axially arranged with middle seam (41), and middle seam (41) both side surface is provided with and the nail groove
Corresponding nail, is provided with staple in nail, the nail bin (4) is installed in component clamping plate (1) distal end；
Percussion push jack (5) below nail bin, percussion push jack (5) is a pair, respectively positioned at the band blade (3)
Both sides；
And positioned at the band blade (3) and the push button (6) of described percussion push jack (5) near-end, percussion push jack (5), described
Band blade (3) is fixedly connected with the push button (6) respectively；
After apparatus closure, first limiting component (32) of the gap control device enters in the inner chamber (21), carries out
During tissue joint-cutting, the band blade (3) and percussion push jack (5) are driven by the nail bin (4) near-end by the push button (6)
Slided to nail bin (4) distal end, and then drive first limiting component (32) set by cutting knife (31) upper end described interior
In chamber (21) along first chute (22) slide, second limiting component (33) in the component clamping plate (1) basal sliding,
Percussion staple completes the cutting and suture of tissue.
9. the surgical cutting and stapling instrument according to claim 7 or 8, it is characterised in that：The surgical cutting and stapling instrument
It 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 |
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| CN104739471A CN104739471A (en) | 2015-07-01 |
| CN104739471B true CN104739471B (en) | 2017-06-13 |
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| CN105832372B (en) * | 2016-05-23 | 2018-06-15 | 上海逸思医疗科技有限公司 | A kind of surgical stapling |
Citations (3)
| 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8540133B2 (en) * | 2008-09-19 | 2013-09-24 | Ethicon Endo-Surgery, Inc. | Staple cartridge |
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Patent Citations (3)
| 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 |
| 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 |
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